CUSHION SHEET PRODUCTION MODULE AND PRODUCTION METHOD, PACKAGING BAG PRODUCTION DEVICE AND PRODUCTION MEHOD THEREOF

The present disclosure provides a cushion sheet production module configured to synchronously and continuously feed first and second surfaces, roll to apply a plurality of first horizontal glues on the first and second surfaces along a direction perpendicular to a feeding direction, the plurality of first horizontal glues arranged at intervals between each other, and continuously apply first longitudinal glues on both sides of the first surface or the second surface facing each other; and then, the first and second surfaces are pressed together to fix with each other at positions of the first horizontal and longitudinal glues, to form a cushion sheet, wherein gas is sealed between the first and second surfaces; or, a buffer layer added between the first and second surfaces to fix the first and second surfaces and the buffer layer together at the first horizontal and longitudinal glues, to form the cushion sheet.

BACKGROUND

2. Technical Field

The present disclosure generally relates to the field of packaging applied to express deliveries, and especially relates to a cushion sheet production module, a packaging bag production device and a production method thereof.

3. Description of Related Art

A common packaging bag with a buffering function is an air bubble bag, which is formed by folding a bottom side and sealing a side of an air bubble sheet. The air bubble sheet is a sheet-like structure as a whole and composed of a plurality of arrays of air bubbles arranged on an inner surface of a plastic film, the plurality of air bubbles formed by the plastic film. Such type of packaging bag is commonly used in express deliveries for packaging electronic products, with good buffering effect thereof. However, such type of packaging bag is made of plastic products, which is not environmentally friendly and difficult to be degraded, and with a demand for plastic degradation, it will gradually be phased out in the market.

A full-paper cushion packaging bag is the most effective and environmentally friendly packaging bag, which can completely replace the air bubble bag in terms of buffering performances, raw material supplies and environmental conveniences.

A conventional full-paper cushion packaging bag is also made of the cushion sheet. Specifically, the cushion sheet is a strip structure, and delivered step by step along a length direction on a device. The cushion sheet includes a first surface, a second surface, and at least one layer of cushion sheet with a three-dimensional grid arranged between the first surface and the second surface, wherein the first surface, the second surface and the cushion sheet are all made of paper material. During producing the cushion sheet, the first surface, the second surface and the cushion sheet are all delivered step by step. On a workbench of the equipment, the first surface, the cushion sheet and the second surface are stacked up and down in sequence to be delivered. For every delivery, it is necessary to spray glue on gluing positions of inner and outer surfaces of the first and second surfaces that are perpendicular to the feeding direction. At a rear end of spraying glue, positions of spraying glue that are overlapped are pressed together to fix the first surface, the second surface and the cushion sheet. At this time, for the cushion sheet with the strip structure, the first surface, the second surface and the cushion sheet, are all spaced apart and fixed together at the positions of spraying glue perpendicular to the feeding direction.

When producing the packaging bag by using the above-mentioned cushion sheet with the strip structure, it is necessary to use a folding structure to fold the cushion sheet to form a bottom side of a bag body of the packaging bag, and a folding line during folding the cushion sheet is a line near a centerline of the cushion sheet with the strip structure along a length direction thereof. During a folding process, the cushion sheet with the strip structure is still delivered in a step-by-step manner. After the cushion sheet is folded, adhesive positions of spraying glue on an outer side of the first surface, which is an upper surface of the strip sheet, are overlapped. After pressing again, the adhesive positions are fixed as side edges of the packaging bag. Two adjacent adhesive positions respectively form two sides of the packaging bag, in this way, a receiving depth of the packaging bag is only half of that of the original cushion sheet with the strip structure. After the cushion sheet with the strip structure is folded to form the packaging bag, because a plurality of packaging bags are connected on sides of the packaging bags in sequence, which is to still form the strip structure, in this way, the sides of spraying glue that are connected together are then cut to form the plurality of independent packaging bags. A fixed width on the side of each packaging bag is only half of that of an original width of spraying glue. There are many shortcomings by using the above method to produce the packaging bag, specifically, there are the following technical problems:firstly, a speed is relatively slow. In the conventional production process of buffer packaging bags, due to the use of a step-by-step method, it is necessary to wait a time for spraying glue, a pressing time and a cutting time after the cushion sheet is delivered step-by-step. Only after positions of spraying glue, pressing and cutting are completed, a next delivery step by step can be performed, thereby resulting in lower production efficiency.secondly, when producing a packaging bag by using the strip cushion sheet, it is necessary to fold the strip cushion sheet, and the depth of the folded packaging bag is only half of that of the original cushion sheet, which is not conducive to producing large-sized packaging bags.thirdly, a bottom of the packaging bag is formed by the folded cushion sheet, is not fixed by spraying glue and has an insufficient fixing strength, which may cause damage and cracking of the packaging bag.

SUMMARY

The technical problems to be solved: in view of the shortcomings of the related art, the present disclosure provides a cushion sheet production method which can solve problems that a slow production speed is occurred by using a conventional production method in the related art above mentioned.

A cushion sheet includes a first surface and a second surface.

A cushion sheet production method according to an embodiment of the present disclosure includes:step S1, unreeling or feeding the first surface and the second surface, both a first horizontal glue and a first longitudinal glue applied on at least one of the first surface and the second surface, the first horizontal glue and the first longitudinal glue arranged on a surface of the first surface and/or the second surface that faces the other first surface or the other second surface; the first horizontal glue perpendicular to a feeding direction and arranged at intervals along the feeding direction, with the same spacing distance thereof; the first longitudinal glue continuously arranged along edges on both sides of the feeding direction; the first surface and the second surface stacked up and down and arranged on a machine, and synchronously and continuously fed; and whereinwhen both the first horizontal glue and the first longitudinal glue are applied on both the first surface and the second surface, the first horizontal glue on the first surface corresponding to the first horizontal glue on the second surface after the first horizontal glue on the first surface is continuously fed, and the first longitudinal glue on the first surface corresponding to the first longitudinal glue on the second surface after the first longitudinal glue on the first surface is continuously fed;step S2, rolling and pressing the first surface and the second surface that are stacked with each other after applying the first horizontal glue and the first longitudinal glue, with pressing positions only being located at the first horizontal glue and the first longitudinal glue, fixing the first and second surfaces to each other at positions of the first horizontal glue, and fixing the first and second surfaces to each other at positions of the first longitudinal glue to form the cushion sheet; and whereinthe cushion sheet is sealed with gas between positions of the first horizontal glue and positions of the first longitudinal glue to provide a buffering effect thereof.

In the method of the present disclosure, a buffer layer can also be added between the first surface and the second surface, which has buffering performance. In the method of the present disclosure, both the first surface and the second surface, or all the first surface, the second surface and the buffer layer, adopt a continuous feeding mode, that is, throughout the feeding process, the first surface, the buffer layer and the second surface are all in a continuous motion state, rather than a stopping state. In the continuous feeding process, by performing rolling glue on the first surface, the buffer layer and the second surface when applying the first horizontal glue to the first surface, the buffer layer and the second surface. When applying the first longitudinal glue to the first surface and/or the second surface, or the buffer layer, performing continuous glue is adopted on the first surface and/or the second surface, or the buffer layer, such as spraying glue or coating glue, such sizing glue method can cooperate with the continuous feeding process to achieve sizing glue without stopping the feeding to wait. Compared with a step-by-step feeding method of waiting for sizing glue during the interval between two step times, the above method of the present disclosure greatly improves production efficiency; in addition, when pressing the first surface, the second surface and the buffer layer, a rolling-pressing method is also used to ensure a smooth continuous feeding to the front end.

A packaging bag production method according to an embodiment of the present disclosure includes:step D1, producing two pieces of cushion sheets by the cushion sheet production method as mentioned above, the two pieces of cushion sheets comprising a first cushion sheet and a second cushion sheet stacked with each other, and the second cushion sheet arranged below the first cushion sheet; after the first cushion sheet and the second cushion sheet are stacked, the position of the first horizontal glue of the first cushion sheet corresponding to the position of the first horizontal glue of the second cushion sheet, and the position of the first longitudinal glue of the first cushion sheet corresponding to the position of the first longitudinal glue of the second cushion sheet; and wherein when the first cushion sheet and the second cushion sheet are produced, or after the first cushion sheet and the second cushion sheet are produced and before the first cushion sheet and the second cushion sheet are stacked with each other, a position of a second horizontal glue is applied on at least one surface of the first cushion sheet or the second cushion sheet facing each other, and a position of a second longitudinal glue is applied on at least one surface of the first cushion sheet or the second cushion sheet facing each other; the position of the second longitudinal glue only located on an edge of the first cushion sheet or the second cushion sheet along the feeding direction, and the position of the second horizontal glue perpendicular to the feeding direction and arranged at intervals along the feeding direction, with the same spacing distance thereof; the first cushion sheet and the second cushion sheet that are stacked so that the position of the second horizontal glue is opposite to the position of the first horizontal glue, and the position of the second longitudinal glue is opposite to the position of the first longitudinal glue on a side thereof; andstep D2, synchronously feeding the first cushion sheet and the second cushion sheet that are stacked, and rolling and pressing the first cushion sheet and the second cushion sheet in a stacked state, so that the first cushion sheet and the second cushion sheet are fixed with each other at the positions of the second horizontal glue and the positions of the second longitudinal glue, to form a packaging bag with two fixed sides thereof.

In the packaging bag production method of the present disclosure, the first cushion sheet and the second cushion sheet are stacked and continuously fed, during the production process that the first and second cushion sheets are continuously fed, the second horizontal glue is set on at least one surface of the first cushion sheet and the second cushion sheet facing each other to form the position of the second horizontal glue, the second longitudinal glue set to form the position of the second longitudinal glue, and then, the first and second cushion sheets are rolled and pressed at the positions of the second horizontal glue and the position of the second longitudinal glue to fix the first and second cushion sheets, for forming the packaging bag. The position of the second longitudinal glue is only located on one edge of the first cushion sheet or the second cushion sheet along the feeding direction, and no glue is applied on the other edge of the first cushion sheet or the second cushion sheet along the feeding direction, thereby naturally forming an opening of the packaging bag.

In the packaging bag production method of the present disclosure, the first and second cushion sheets that are continuously fed can match with the first surface, the second surface and the buffer layer that are used to produce the cushion sheets, which can save equipment spaces and reduce process difficulties, that is, the first and second cushion sheets can be made separately at the front end of the same device, and the first and second cushion sheets can be glued and rolled at the back end of the device to produce packaging bags, in this way, the entire device adopts the same continuous feeding mode, and feeding speeds are the same at the front and back ends, which can produce the packaging bags most conveniently.

In addition, a depth of the packaging bag produced by the method of the present disclosure is basically equal to the width of the first cushion sheet or the second cushion sheet perpendicular to the feeding direction. Compared to conventional technologies, it is necessary to fold the cushion sheet and gradually feed the cushion sheet during the folding process, which is conducive to producing packaging bags with larger depths and having higher production efficiency thereof.

In the conventional method of producing packaging bags by folding cushion sheets, the bottom of the packaging bag is formed by the folded cushion sheet itself without sizing glue to fix, so that a fixing strength is insufficient. The packaging bag produced by the method of the present disclosure is formed by adhesive bonding the first and second cushion sheets at the positions of the second longitudinal glue to form the bottom of the packaging bag, which can improve the fixing strength of the bottom of the packaging bag through the adhesive bonding way.

A packaging bag production method according to another embodiment of the present disclosure includes:step A1, producing two pieces of cushion sheets by the above method, the two pieces of cushion sheets comprising a first cushion sheet and a second cushion sheet, the second cushion sheet arranged below the first cushion sheet; a width of the first cushion sheet perpendicular to the feeding direction smaller than a width of the second cushion sheet perpendicular to the feeding direction, both sides at the width of the second cushion sheet extending out of the first cushion sheet to form a first edge and a second edge, the first cushion sheet and the second cushion sheet stacked with each other and continuously fed; and whereinafter the first cushion sheet and the second cushion sheet are stacked, the position of the first horizontal glue of the first cushion sheet corresponds to the position of the first horizontal glue of the second cushion sheet, and the position of the first longitudinal glue of the second cushion sheet is located outside the position of the first longitudinal glue of the first cushion sheet; and wherein when the first cushion sheet and the second cushion sheet are produced, or after the first cushion sheet and the second cushion sheet are produced and before the first cushion sheet and the second cushion sheet are stacked with each other, a position of a second horizontal glue is applied on at least one surface of the first cushion sheet or the second cushion sheet facing each other, and a position of a second longitudinal glue is applied on a surface of the second cushion sheet facing the first cushion sheet; a position of the second longitudinal glue only located on the first edge or the second edge of the second cushion sheet along the feeding direction, wherein the first cushion sheet and the second cushion sheet are stacked so that the position of the second horizontal glue is opposite to the position of the first horizontal glue;step A2, synchronously feeding the first cushion sheet and the second cushion sheet that are stacked, and rolling and pressing the first cushion sheet and the second cushion sheet in a stacked state, so that the first cushion sheet and the second cushion sheet are fixed with each other at the position of the second horizontal glue; andstep A3, synchronously feeding the first cushion sheet and the second cushion sheet that are stacked, folding the first edge or the second edge of the second cushion sheet with the position of the second longitudinal glue towards a side of the first cushion sheet, rolling and pressing the first edge or the second edge after folding the first edge or the second edge, so that the first cushion sheet and the second cushion sheet are fixed with each other at the position of the second longitudinal glue, to form a packaging bag thereof.

In the packaging bag production method of the present disclosure, the two cushion sheets that are produced have different widths, where the width of the second cushion sheet located above is smaller than the width of the first cushion sheet located below, and both sides of the width of the second cushion sheet extend out of the first cushion sheet, to form the first edge and the second edge. The second longitudinal glue is applied on the first edge or the second edge to form the position of the second longitudinal glue, the first edge or the second edge that is applied the second longitudinal glue is folded towards the first cushion sheet, to bond the position of the second longitudinal glue onto the first cushion sheet to form the bottom of the packaging bag. In the method, the packaging bags made of the first and second cushion sheets reduce the width of the first and second cushion sheets that are directly pressed at the position of the first horizontal glue compared to the packaging bags made by the previous packaging bag production method, so that a greater depth of the packaging bag made by the method can be obtained.

A cushion sheet production module according to an embodiment of the present disclosure that a cushion sheet includes a first surface and a second surface,the cushion sheet production module includes:a first unreeling unit arranged on a machine and configured to perform unreeling on the first surface and continuously feed the first surface along a length direction of the machine;a second unreeling unit arranged on the machine and configured to perform unreeling on the second surface and continuously and synchronously feed the second surface with the first surface along the length direction of the machine, and the second surface arranged below the first surface; a first horizontal glue applied at intervals along a direction perpendicular to the feeding direction and applied on a surface of one of the first surface and/or the second surface facing the other of the first surface or the second surface; on the surface of the first surface and/or the second surface facing the other first surface or the other second surface, a first longitudinal glue continuously applied along edges of both sides of a feeding direction; a position of the first horizontal glue of the first surface opposite to a position of the first horizontal glue of the second surface during the feeding process, and a position of the first longitudinal glue of the first surface opposite to a position of the first longitudinal glue of the second surface during the feeding process; anda paper pressing unit configured to rolling and clamping the position of the first horizontal glue and the position of the first longitudinal glue that are arranged on the first surface and/or the second surface, to press and fix the first and second surfaces at positions of the first horizontal glue and positions of the first longitudinal glue, to form the cushion sheet, wherein gas is sealed between the first surface and the second surface to provide a buffering effect for the cushion sheet.

In the cushion sheet production module, it is also possible to produce cushion sheets with a buffer layer, and the buffer layer sandwiched between the first surface and the second surface.

The cushion sheet production module of the present disclosure adopts a continuous feeding mode to feed the first and second surfaces, as well as the buffer layer formed by stretching the third surface, and applies the first horizontal glue and the first longitudinal glue to the first and second surfaces, and the buffer layers respectively during the feeding process, or the first and second surfaces, and the buffer layers already have set the first horizontal glue and the first longitudinal glue, and then the first surface, the second surface and the buffer layers are rolled and pressed during the feeding process to produce the cushion sheet. Compared to conventional cushion sheet production modules without using a step-by-step feeding method, the cushion sheet production module of the present disclosure can improve production efficiency thereof.

A packaging bag production device according to an embodiment of the present disclosure includes:two cushion sheet production modules, one of the two cushion sheet production modules configured to produce a first cushion sheet and the other of the two cushion sheet production modules configured to produce a second cushion sheet, the first cushion sheet arranged above the second cushion sheet and overlapped with the second cushion sheet, and both the first and second cushion sheets continuously and synchronously fed;a fifth glue providing member configured to roll on a surface of the first cushion sheet facing the second cushion sheet to apply the glue on the surface of the first cushion sheet facing the second cushion sheet, so that a second horizontal glue perpendicular to the feeding direction is applied on the second surface of the first cushion sheet at intervals; or roll on a surface of the second cushion sheet facing the first cushion sheet to apply the glue on the surface of the second cushion sheet facing the first cushion sheet, so that the second horizontal glue perpendicular to the feeding direction is applied on the first surface of the second cushion sheet at intervals, a position of the second horizontal glue opposite to the position of the first horizontal glue of the first cushion sheet or the second cushion sheet;a bag glue providing member configured to continuously apply a second longitudinal glue to the surface of the first cushion sheet facing the second cushion sheet, and/or the surface of the second cushion sheet facing the first cushion sheet, a position that the bag glue providing member applies the glue is arranged on a side edge of the first cushion sheet or the second cushion sheet along a length direction thereof, and a position of the second longitudinal glue that is continuously applied is continuous along the length direction thereof, the position of the second longitudinal glue opposite to one of the positions of the first longitudinal glue on the first cushion sheet or the second cushion sheet;at least one group of material pressing rollers arranged at a rear end of the bag glue providing member, the at least one group of material pressing rollers configured to clamp the first cushion sheet and the second cushion sheet, and roll and press the position of the second longitudinal glue after gluing by the bag glue providing member, as well as the position of the second horizontal glue of the first surface or the second surface opposite to each other that are on the first cushion sheet or the second cushion sheet along a direction of perpendicular to the feeding direction, to fix the first cushion sheet and the second cushion sheet; anda roll-cutting module arranged at a rear end of the at least one group of material pressing rollers and configured to clamp the first cushion sheet and the second cushion sheet that are pressed and fixed, and cut at the positions of the second horizontal glue on the first cushion sheet and the second cushion sheet that are fixed with each other during a rolling process, to form a plurality of packaging bags during the continuous feeding process.

In the packaging bag production device of the present disclosure, simultaneously and continuously feeding the two cushion sheets to the bag glue providing member, and applying the second longitudinal glue to at least one surface of the first and second cushion sheets relative to each other along an edge perpendicular to the feeding direction, to form the position of the second longitudinal glue; at the same time, during the process of producing the cushion sheets by using the cushion sheet production module, the second horizontal glue is applied on the at least one surface of the first and second cushion sheets relative to each other at intervals to form the position of the second horizontal glue, and the position of the second horizontal glue corresponds to the position of the first horizontal glue of the first and second cushion sheets. And then, the position of the second horizontal glue and the position of the second longitudinal glue are rolled and pressed by the material pressing roller to fix the first cushion sheet and the second cushion sheet, and cut at the positions of the second horizontal glue through the roll-cutting module to form a packaging bag thereof.

DETAILED DESCRIPTION

The present disclosure will be further illustrated and described with reference to embodiments, examples and the accompanying drawings of the specification.

Referring toFIG.1andFIG.2, the present disclosure provides a cushion sheet production method for manufacturing a cushion sheet100, in the production method, the cushion sheet100includes a first surface10and a second surface20, and also can include the first surface10and the second surface20, as well as a buffer layer301clamped and fixed between the first surface10and the second surface20.

There are various implementation embodiments of the cushion sheet production method of the present disclosure, which are as follows:a first embodiment of the present disclosure:referring toFIG.2, in an embodiment of the present disclosure, the buffer layer301is formed by stretching the third surface30after die-cutting the third surface30. All of the first surface10, the second surface20and the third surface30are environmentally friendly paper materials. A plurality of slits310is formed on the third surface30after die-cutting or cutting the third surface30. The plurality of slits310includes a plurality of rows, the plurality of slits310in the same row arranged at intervals, and the plurality of slits310in adjacent rows staggered with each other, to form a die-cutting paper31thereof. When an external force perpendicular to the plurality of slits310is applied to the die-cutting paper31, the plurality of slits310is twisted and deformed into a three-dimensional opening312. After all the plurality of slits310in the plurality of rows are twisted and deformed into three-dimensional openings312, a buffer layer301is formed. The buffer layer301is a grid structure, and at this time, a thickness of the buffer layer301expands relative to the third surface30, which can play a buffering and protective role thereof.

Of course, in the present disclosure, after cutting the third surface30, the thickness of the third surface30can be increased by stretching the third surface30, a cutting way of forming other three-dimensional grid structures can also implement a purpose of the present disclosure.

Referring toFIG.3andFIG.4, step S1, unreeling or feeding the first surface10, the second surface20and a layer of buffer layer301, each of the first surface10, the buffer layer301and the second surface20includes a position P11of a first horizontal glue, the position P11of the first horizontal glue perpendicular to a feeding direction and arranged at intervals along the feeding direction, with the same spacing distance thereof. During the unreeling or feeding process of the first surface10, the second surface20and the buffer layer301, the first horizontal glue is rolled and applied to form the position P11of the first horizontal glue.

Or the first horizontal glue is applied on the position P11of the first surface10and the second surface20, rather than on the position P11of the buffer layer301.

Rolling to sizing glue is referred that a gluing roller40is in contact with the first surface10, the second surface20and the buffer layer301to apply glue on the first surface10, the second surface20and the buffer layer301. An outer surface of the gluing roller40is equipped with a rolling glue position41perpendicular to the feeding direction of a machine and extending from one end of the gluing roller40to the other end of the gluing roller40. The gluing roller40is set perpendicular to the feeding direction. When the gluing roller40rotates, the gluing roller40is only in contact with the position P11of each of the first surface10, the second surface20or the buffer layer301, so that glue is applied to the first surface10, the second surface20and the buffer layer301respectively. After that, the first horizontal glue is formed on the first surface10, the second surface20and the buffer layer301.

After applying glue to the position P11, the position P11of the first surface10corresponds to the positions P11of the buffer layer301and the second surface20after performing continuous feeding on the first surface10, the second surface20and the buffer layer301, so as to fix the first surface10, the buffer layer301and the second surface20to each other at the positions P11where the first horizontal glue is applied.

Specifically, there are three gluing rollers40arranged, each of the three gluing rollers40corresponding to the first surface10, the second surface20and the buffer layer301. The three gluing rollers40arranged in the feeding direction at intervals. After one of the three gluing rollers40rolls and applies glue to the first surface10, when the buffer layer301moves below a second gluing roller40, and the position P11that has already been glued on the first surface10is located below the second gluing roller40and opposite to the second gluing roller40, the second gluing roller40then applies glue to the buffer layer301, which forms a relative relationship between the position P11of the buffer layer301and the position P11of the first surface10. Similarly, when a third gluing roller40applies glue to the second surface20, only when both the position P11of the first surface10and the position P11of the buffer layer301move synchronously below the third gluing roller40, and the third gluing roller40applies glue to the second surface20. There is an inherent setting principle in the setting of three gluing rollers40, and it is preferred that a distance between two adjacent gluing rollers40in the three gluing rollers40is an integer multiple of a distance between adjacent positions P11of the first horizontal glue on the first surface10, and a circumference distance that each gluing roller40rotates one cycle is precisely set to a distance between adjacent positions P11of the first horizontal glue. Each rotation of the gluing roller40corresponds exactly to a sizing glue distance of performing continuous feeding on the first surface10, the second surface20and the buffer layer301, which is the distance between adjacent positions P11of the first horizontal glue.

In addition, in the step S1, a first longitudinal glue is arranged on each of the first surface10and the second surface20. The first longitudinal glue is located at a position P12, the position of the first longitudinal glue located on a surface of each of the first surface10and the second surface20facing the buffer layer301. The position P12of the first longitudinal glue is edges on both sides of the first surface10and the second surface20along the feeding direction.

When the first longitudinal glue is continuously applied, that is, by spraying glue or applying glue, such as a nozzle50is used for continuously spraying on both sides of the first surface10and the second surface20along the feeding direction, to form a strip-shaped area on each of the first surface10and the second surface20, which is also the position P12of the first longitudinal glue.

Of course, it is also possible to continue applying glue on the buffer layer301, continuously spraying the first longitudinal glue at the position P12of the buffer layer301along both sides of the feeding direction, so as to better fix the first surface10, the buffer layer301and the second surface20to each other at the positions P12of the first longitudinal glue.

In the present disclosure, both continuous sizing glue and rolling gluing actions are completed during the continuous and synchronous feeding process of the first surface10, the buffer layer301and the second surface20. On the one hand, compared with the conventional step-by-step feeding method, the present disclosure can save a working time, rather than requiring waiting for a gluing time, on the other hand, the first surface10, the second surface20and the buffer layer301can be fixed shortly after being glued, which can ensure a fixed strength thereof.

Of course, in other embodiments of the present disclosure, the first surface10, the second surface20and the buffer layer301or the third surface30can also be applied with the first horizontal glue and the first longitudinal glue in advance, to respectively form the position P11of the first horizontal glue and the position P12of the first longitudinal glue. Then, the first surface10, the second surface20and the buffer layer301can be simultaneously unreeled, it is ensured that the positions P11of the first horizontal glue on the first surface10, the second surface20and the buffer layer301are relative to each other, and the positions P12of the first longitudinal glue are also relative to each other during the unreeling process.

The machine can be referred toFIG.2andFIG.4, in an embodiment of the present disclosure, a formation of the buffer layer301includes:

step S11, performing unreeling on the third surface30and cutting a plurality of slits310arranged on the third surface30during performing unreeling on the third surface30, the plurality of slits310including a plurality of rows, the plurality of slits310in the same row arranged at intervals, and the plurality of slits310in adjacent rows staggered with each other, to form a die-cutting paper31thereof; andstep S12, continuously feeding the die-cutting paper31, and adjusting a feeding speed at a back end to be greater than a feeding speed at a front end along the feeding direction, so that the die-cutting paper31is stretched to form the buffer layer301with a three-dimensional grid structure.Step S2, rolling and pressing the first surface10, the buffer layer301and the second surface20that are stacked after applying the first horizontal glue and the first longitudinal glue, to fix the first surface10, the buffer layer301and the second surface20to each other at the positions P11of the first horizontal glue and at the positions P12of the first longitudinal glue to form a cushion sheet thereof.

In the first embodiment of the present disclosure, when rolling and pressing the first surface10, the buffer layer301and the second surface20in a stacked state, only the first surface10, the buffer layer301and the second surface20are pressed at the positions P11of the first horizontal glue and the positions P12of the first longitudinal glue.

In the first embodiment of the present disclosure, only rolling and pressing the positions P11of the first horizontal glue and the positions P12of the first longitudinal glue can ensure that the buffer layer301between two adjacent positions P11of the first horizontal glue remains in a three-dimensional grid structure before being pressed, thereby playing a buffering and protective role thereof, preventing the three-dimensional grid structure that has been expanded from being squeezed after the buffer layer301is pressed, to reduce the buffering effect thereof.

In addition, after the position P11of the first horizontal glue and the position P12of the first longitudinal glue are pressed, the first surface10, the buffer layer301and the second surface20cooperatively form a structure similar to a four-side closed and a three-dimensional grid state inside the four sides of the buffer layer301that is fixed and clamped by the first surface10and the second surface20, such structure can wrap around surfaces of an article to provide cushioning and shock absorption. In addition, it can also play a role in insulation. Specifically, because the cushion sheet is produced in a non-vacuum environment, after the four sides are sealed, some air will inevitably be filled inside the four sides. Both the first surface10and the second surface20are made of a paper material, which has low heat absorption and thermal conductivity, in this way, heat is not easily transmitted to an enclosed area between the first surface10and the second surface20, and the air inside the enclosed area can also play a good insulation effect.

In the first embodiment of the present disclosure, a width of the buffer layer301perpendicular to the feeding direction is the same as a width of the first surface10or the second surface20. When the position P12of the first longitudinal glue on the first surface10is fixed and pressed with the position P12of the first longitudinal glue on the buffer layer301and/or the second surface20, the buffer layer301at the position P12is flattened into a planar structure. That is, the buffer layer301at the position P12is a planar grid structure, the buffer layer301that is pressed as a planar grid structure, the first surface10and the second surface20are fixed together. A contact area between the buffer layer301of the planar structure and the first surface10and the second surface20increases, so that a fixing strength also increases accordingly.

Referring toFIG.5, the method of the embodiment of the present disclosure further includes:step S3, heating the cushion sheet that is formed at the same time of feeding to ensure that the positions P11of the first horizontal glue and the positions P12of the first longitudinal glue are firmly fixed after being pressed together.step S4, rolling and cutting the cushion sheet at the positions P11of at least two adjacent or spaced the first horizontal glues to form a buffer unit110that is configured to wrap and protect articles and insulate the articles from heat. The buffer unit110of the present disclosure can be set in lengths as needed, such as cutting at the positions P11of two spaced first horizontal glues to form the buffer unit110with three glue spacing lengths, or cutting at the positions P11separated by four first horizontal glues to form the buffer unit110with five glue spacing lengths.

During the production process of the cushion sheet of the present disclosure, continuous feeding is used to feed the first surface10, the second surface20and the third surface30. The first horizontal glue and the first longitudinal glue are applied to the first surface10, the second surface20and the third surface30, while ensuring continuous feeding without stopping feeding, especially by using rolling and continuous sizing glue. In addition, during the continuous feeding process, rolling pressing is used to fix the first surface10, the second surface20and the buffer layer301at the positions P11of the first horizontal glue and the positions P12of the longitudinal glue, thereby perfectly fitting the continuous feeding; moreover, rolling cutting is also used for cutting at the positions P11on the back end thereof, and a cutting interval of performing rolling cutting is precisely set to at least one glue application interval, which can ensure that each rolling can implement one cutting at the positions P11of the first horizontal glue.

In the first embodiment of the present disclosure, the buffer layer312can also be a slit structure of other shapes, such as a triangle or a quadrilateral, or a combination of triangles, quadrilaterals and curves. As long as it is cut on the third surface30and stretched to expand the third surface30in the thickness direction thereof, a structure with a buffering function is sufficient.

A second embodiment of the present disclosure:referring toFIG.6, a difference between the second embodiment and the first embodiment is that the buffer layer301that is performed unreeling or feeding has two layers, and of course, more layers of buffer layer301can also be set up.

When there are two layers of buffer layers301, compared to the first embodiment, in the second embodiment of the present disclosure, when rolling and applying the first horizontal glue to the first surface10, the second surface20and the buffer layer301, an additional gluing roller40needs to be added. When adding the gluing roller40, it is necessary to ensure that two layers of buffer layer301can apply the first horizontal glue to positions relative to the position P11of the first surface10. The position P11of the first horizontal glue after rolling and applying the two layers of buffer layer301is also relative to each other, and also relative to the position P11of the first horizontal glue on the second surface20.

In addition, when continuously applying the first longitudinal glue to the first surface10and the second surface20, it is necessary to apply the first longitudinal glue to the two layers of buffer layers301to form the position P12of the first longitudinal glue. The position P12of the first longitudinal glue on the two layers of buffer layers301is located on both sides along the feeding direction. The position P12of the first longitudinal glue on the two layers of buffer layers301is opposite to the position P12of the first longitudinal glue on the first surface10and the second surface20.

A third embodiment of the present disclosure:

Referring toFIG.7andFIG.8, a difference between the third embodiment and the first embodiment is that a width X3of the buffer layer301perpendicular to the feeding direction is smaller than widths X1and X2of the first surface10and the second surface20perpendicular to the feeding direction, both the width X1of the first surface10and the width X2of the second surface20perpendicular to the feeding direction are the same. The first surface10and the second surface20extend out of the buffer layer301on both sides of their respective width perpendicular to the feeding direction, and the first surface10and the second surface20completely cover the buffer layer301; the first surface10and the second surface20are fixed to each other at the position P12of the first longitudinal glue to clamp the buffer layer301between the first surface10and the second surface20.

In the third embodiment of the present disclosure, the first longitudinal glue does not need to be applied on the buffer layer301. The position P12of the first longitudinal glue applied on the first surface10and the second surface20is located at two side ends that the first surface10or the second surface20extends out of the buffer layer301. When the first surface10and the second surface20are fixed at the positions P12of the first longitudinal glue, the buffer layer301is wrapped inside by the first surface10and the second surface20; at this time, the position P11of the first horizontal glue set on the buffer layer301remains opposite to the position P11of the first horizontal glue on the first surface10and the second surface20.

Compared to the first embodiment, in the third embodiment of the present disclosure, a step of applying the first longitudinal glue to the buffer layer301of the three-dimensional grid structure is reduced, which is beneficial for improving production efficiency thereof.

Regarding the rolling sizing glue and the continuous sizing glue in the first embodiment to the third embodiment of the present disclosure above mentioned, it should be noted that during gluing, it is only necessary to apply glue to at least one surface of two adjacent opposite surfaces in the first surface10, at least one layer of buffer layer301and the second surface20, or to improve the fixing strength, glue can be applied to two adjacent surfaces.

For example, when the first surface10, one layer of buffer layer301, and the second surface20are stacked and continuously fed, the first horizontal glue and the first longitudinal glue can be applied on a surface of the first surface10facing the buffer layer301, and at the same time, the first horizontal glue and the first longitudinal glue can be applied on a surface of the second surface20facing the buffer layer301. At this point, when the first surface10, the buffer layer301and the second surface20are pressed together, the first horizontal glue and the first longitudinal glue on the first surface10are fixed to the buffer layer301, while the first horizontal glue and the first longitudinal glue on the second surface20are also fixed to the buffer layer301, so that the first surface10, the second surface20and the buffer layer301are fixed together.

For example, when the first surface10, one layer of buffer layer301, and the second surface20are stacked and continuously fed, the first horizontal glue and the first longitudinal glue can be applied on a surface of the first surface10facing the buffer layer301, and at the same time, the first horizontal glue and the first longitudinal glue can be applied on a surface of the second surface20facing the buffer layer301. At this point, when the first surface10, the buffer layer301and the second surface20are pressed together, the first horizontal glue and the first longitudinal glue on the first surface10are fixed to the buffer layer301, while the first horizontal glue and the first longitudinal glue on the second surface20are also fixed to the buffer layer301, so that the first surface10, the second surface20and the buffer layer301are fixed together. Such fixation method is more firm.

For example, when the first surface10, one layer of buffer layer301, and the second surface20are stacked and continuously fed, the width of the buffer layer301is smaller than the widths of the first surface10and the second surface20, and two ends of the widths of the first surface10and the second surface20extend out of the buffer layer301, the first horizontal glue and the first longitudinal glue can be applied on a surface of the first surface10facing the buffer layer301, and at the same time, the first horizontal glue and the first longitudinal glue can be applied on a surface of the second surface20facing the buffer layer301. The position of the first longitudinal glue is located on an outer side of the width direction of the buffer layer301relative to the buffer layer301. At this point, when the first surface10, the buffer layer301and the second surface20are pressed together, the first horizontal glue on the first surface10is fixed to the buffer layer301, and the first horizontal glue on the second surface20is also fixed to the buffer layer301. The first longitudinal glue on the first surface10and the first longitudinal glue on the second surface20are fixed to each other, and the buffer layer301is located between the first surface10and the second surface20.

In summary, the positions of applying the first horizontal glue and the first longitudinal glue on the first surface10, the buffer layer301and the second surface20can ensure that the first surface10, the buffer layer301and the second surface20can be fixed to each other at the position P11of the first horizontal glue. The first surface10and the second surface20, or the first surface10, the buffer layer301and the second surface20can be fixed to each other at the position P12of the first longitudinal glue.

A fourth embodiment of the present disclosure:

Referring toFIG.9, a difference between the fourth embodiment and the first embodiment is only that: the buffer layer312is not a three-dimensional grid structure, nor a structure formed by stretching a die-cutting paper.

The buffer layer312is selected from any one of a bubble film, a corrugated paper and a honeycomb paper. In the fourth embodiment, when the buffer layer312is taken as the cushion sheet, the buffer layer312is not necessary to be stretched.

Compared to conventional methods that require to be stretched, the manufacturing process of the fourth embodiment is simpler and more convenient.

A fifth embodiment of the present disclosure:

Referring toFIG.10, specifically, step S1, unreeling or feeding the first surface10and the second surface20, the position P11of the first horizontal glue is set on the first surface10and/or the second surface20, the position P11of the first horizontal glue perpendicular to the feeding direction and arranged at intervals along the feeding direction, with the same spacing distance thereof. During the unreeling or feeding process of the first surface10or the second surface20, rolling and sizing glue is applied to the first surface10or the second surface20, to form the position P11of the first horizontal glue.

After applying glue to the position P11of the first horizontal glue, the position P11of the first horizontal glue on the first surface10corresponds to the position P11of the first horizontal glue on the buffer layer301and the second surface20after performing continuous feeding on the first surface10, the buffer layer301and the second surface20, so that the first surface10, the buffer layer301, and the second surface20are fixed at the positions P11of the first horizontal glue.

Specifically, at least one gluing roller40is provided and corresponds to the first surface10and/or the second surface20, respectively. The at least one gluing roller40is arranged in the feeding direction at intervals. After one gluing roller40rolls and applies glue to the first surface10, when the buffer layer301moves to a second gluing roller40and the position P11of the first horizontal glue that has already been applied on the first surface10is located below the second glue roller40, the second glue roller40applies glue to the second surface20. That is to say, only when the position P11of the first horizontal glue on the first side10moves below the other gluing roller40, the other gluing roller40applies glue to the second surface20.

In addition, in the step S1, the first surface10and/or the second surface20are equipped with the position P12of the first longitudinal glue. The position P12of the first longitudinal glue is located on a surface of one of the first surface10and/or the second surface20facing the other of the second surface20or the first surface10. The position P12of the first longitudinal glue is located on both side edges of the first surface10and the second surface20along the feeding direction.

In the step S1, the first surface10and the second surface20are stacked on top and bottom and arranged on the machine to synchronous and continuous feed.Step S2, rolling and pressing the first surface10and the second surface20that are stacked with each other after applying the first horizontal glue and the first longitudinal glue, fixing the first surface10and the second surface20to each other at the positions P11of the first horizontal glue, and fixing the first surface10and the second surface20to each other at the positions P12of the first longitudinal glue to form a cushion sheet.

In the fifth embodiment of the present disclosure, when rolling and pressing the first surface10and the second surface20in a stacked state, only pressing the first surface10and the second surface20at the positions P11of the first horizontal glue and the positions P12of the first longitudinal glue.

In the fifth embodiment of the present disclosure, when the first surface10and the second surface20are fixed at the positions P11of the first horizontal glue and the positions P12of the first longitudinal glue, some air is sealed between the first surface10and the second surface20, which can play a buffering and protective role to provide insulation and heat preservation.

In the above embodiments of the present disclosure, it should be noted that the first horizontal glue applied on the first surface10and the second surface20is configured to adhere to the other first surface10and the second surface20to form glue that can be applied to the cushion sheet100. The first horizontal glue is arranged perpendicular to the feeding direction at intervals. The first longitudinal glue is also the same to fix the first surface10and the second surface20, but fixed positions are on both sides along the feeding direction, and are arranged continuously with the feeding.

A packaging bag production method according to an embodiment of the present disclosure includes at least two embodiments, specifically:a sixth embodiment of the present disclosure: referring toFIG.11toFIG.13, the packaging bag production method includes:step D1, producing two pieces of cushion sheets101,102by using any one of the first embodiment to the fifth embodiment of the present disclosure above mentioned.

The two pieces of cushion sheets101,102are divided to a first cushion sheet101and a second cushion sheet102stacked with each other, and the second cushion sheet102arranged below the first cushion sheet101; after the first cushion sheet101and the second cushion sheet102are stacked, the position P11of the first horizontal glue of the first cushion sheet101corresponding to the position P11of the first horizontal glue of the second cushion sheet102, and the position P12of the first longitudinal glue of the first cushion sheet101corresponding to the position P12of the first longitudinal glue of the second cushion sheet102; and wherein when the first cushion sheet101and the second cushion sheet102are produced, a position P21of a second horizontal glue is applied on at least one surface of the first cushion sheet101or the second cushion sheet102facing each other, and a position P22of a second longitudinal glue is applied on at least one surface of the first cushion sheet101or the second cushion sheet102facing each other; the position P22of the second longitudinal glue only located on an edge of the first cushion sheet101or the second cushion sheet102along the feeding direction; the first cushion sheet101and the second cushion sheet102that are stacked so that the position p21of the second horizontal glue is opposite to the position P11of the first horizontal glue, and the position P22of the second longitudinal glue is opposite to the position P12of the first longitudinal glue on a side thereof.

Step D2, synchronously feeding the first cushion sheet101and the second cushion sheet102that are stacked, and rolling and pressing the first cushion sheet101and the second cushion sheet102in a stacked state, so that the first cushion sheet101and the second cushion sheet102are fixed with each other at the positions P21of the second horizontal glue and the positions P22of the second longitudinal glue, to form a packaging bag200with two fixed sides and a bottom thereof.

A width of the first cushion sheet101along the feeding direction is the same as that of the second cushion sheet102. When rolling and pressing the first cushion sheet101and the second cushion sheet102in the stacked state, only the positions P21of the second horizontal glue and the positions P22of the second longitudinal glue on the first cushion sheet101and the second cushion sheet102are pressed.

In the sixth embodiment of the present disclosure, when the first cushion sheet101and the second cushion sheet102are pressed together at the positions P22of the second longitudinal glue, the position P22of the second longitudinal glue is only arranged at one edge of the first cushion sheet101or the second cushion sheet102along the feeding direction, and no second longitudinal glue is arranged at the other edge of the first cushion sheet101or the second cushion sheet102along the feeding direction. When the first cushion sheet101and the second cushion sheet102are pressed and fixed with each other, a structure similar to the packaging bag200is formed at the positions P21of two adjacent second horizontal glue, that is, the positions P22of the second longitudinal glue along the feeding direction are fixed, and the other edge relative to the positions P22of the second longitudinal glue is not fixed, thereby forming an opening M between the first cushion sheet101and the second cushion sheet102. The positions P11of two adjacent horizontal glue are fixed to each other, to be taken as two sides of the opening M, to form a structure with three fixed sides and a side with the opening M.

Referring toFIG.14andFIG.15, the packaging bag production method of the present disclosure further includes:step D3, continuously unreeling a covering paper300, and applying a third longitudinal glue on edges of the sealing paper300along the feeding direction. A position P3of the third longitudinal glue is continuously arranged along the feeding direction and located on a surface of the covering paper300facing the first cushion sheet101. During the synchronous feeding process of the covering paper300and the second cushion sheet102, the position P3of the third longitudinal glue is pasted on the second cushion sheet102, which is located on an opposite edge of the position P22, that is, a side edge of the opening M, so as to form a cover21.Step D4, cutting the first cushion sheet101and the second cushion sheet102that are pressed and fixed with each other, as well as the cover21that has been pasted, at the positions P11of the first horizontal glue or the positions P21of the second horizontal glue by a rolling and cutting way, to form the packaging bag200.Step D5, when continuously unreeling the covering paper300, applying a fourth longitudinal glue on a middle portion of the covering paper300facing the second cushion sheet102, and positions P4of the fourth longitudinal glue are continuously arranged along the feeding direction.Step D6, when continuously performing unreeling on the covering paper300, synchronously unreeling a release paper400and sticking the release paper400to the position P4of the fourth longitudinal glue. Cutting the first cushion sheet101, the second cushion sheet102, the cover21and the release paper400that are pressed and fixed together by using a rolling and cutting way, to form the packaging bag200.

In the sixth embodiment of the present disclosure, the covering paper300is pasted on the outermost side of the second cushion sheet102away from the first cushion sheet101. When the packaging bag200that is cut to be formed is in use, folding the cover21towards a position of the first cushion sheet101and tearing off the release paper400, and the position P4of the fourth longitudinal glue is pasted on the first cushion sheet101, which can seal the opening M formed between the first cushion sheet101and the second cushion sheet102, thereby forming the closed packaging bag200. In the sixth embodiment of the present disclosure, it should be noted that the second horizontal glue that is applied on the first cushion sheet101or the second cushion sheet102is configured to adhere to another first cushion sheet101or the second cushion sheet102to form glue that can be applied to the packaging bag200. The second horizontal glue is arranged perpendicular to the feeding direction at intervals. And then, the second longitudinal glue is also the same to fix the first cushion sheet101and the second cushion sheet102, but fixed positions are on one side along the feeding direction, and the other side is a reserved opening. After being made into the packaging bag200, it becomes the opening M of the packaging bag, and the second longitudinal glue is arranged continuously with the feeding.

A seventh embodiment of the present disclosure:

Referring toFIG.16, a difference between the seventh embodiment and the sixth embodiment is that: bonding and production methods that the covering paper300and the release paper400are adhered with the second cushion sheet102are different.

Specifically, the seventh embodiment of the present disclosure includes steps D1-D4of the sixth embodiment, and adding a step D7after the step D4. Step D7: synchronously and continuously unreeling the covering paper300and the release paper400, and when continuously unreeling the release paper400, applying a fifth longitudinal glue on a surface of the release paper400facing the second cushion sheet102. A position P5of the fifth longitudinal glue is continuously arranged along the feeding direction; during the reeling process, sticking the position P5of the fifth longitudinal glue onto the covering paper300by facing a direction of the covering paper300; cutting the first cushion sheet101, the second cushion sheet102, the cover21, and the release paper400on the cover21by the rolling way, to form the packaging bag200.

An eighth embodiment of the present disclosure:

Referring toFIG.17toFIG.19, another packaging bag production method according to the present disclosure includes:step A1, producing two pieces of cushion sheets101,102by using any one of the first embodiment to the fifth embodiment of the present disclosure above mentioned, the two pieces of cushion sheets101,102are divided to a first cushion sheet101and a second cushion sheet102, the second cushion sheet102arranged below the first cushion sheet101; a width of the first cushion sheet101perpendicular to the feeding direction smaller than a width of the second cushion sheet102perpendicular to the feeding direction, both sides at the width of the second cushion sheet102extending out of the first cushion sheet101to form a first edge E1and a second edge E2, the first cushion sheet101and the second cushion sheet102stacked to each other and continuously fed.

After the first cushion sheet101and the second cushion sheet102are stacked, the position P11of the first horizontal glue of the first cushion sheet101corresponds to the position P11of the first horizontal glue of the second cushion sheet102, and the position P11of the first longitudinal glue of the second cushion sheet102is located outside the position P12of the first longitudinal glue of the first cushion sheet101; and wherein when the first cushion sheet101and the second cushion sheet102are produced, the position P21of the second horizontal glue is applied on at least one surface of the first cushion sheet101or the second cushion sheet102facing each other, the position P21of the second horizontal glue arranged perpendicular to the feeding direction at intervals; and the position P22of the second longitudinal glue is applied on a surface of the second cushion sheet102facing the first cushion sheet101; the position P22of the second longitudinal glue only located on the first edge E1or the second edge E2of the second cushion sheet102along the feeding direction, wherein the first cushion sheet101and the second cushion sheet102are stacked so that the position P21of the second horizontal glue is opposite to the position P11of the first horizontal glue.Step A2, synchronously feeding the first cushion sheet101and the second cushion sheet102that are stacked, and rolling and pressing the first cushion sheet101and the second cushion sheet102in a stacked state, so that the first cushion sheet101and the second cushion sheet102are fixed with each other at the position P21of the second horizontal glue.Step A3, synchronously feeding the first cushion sheet101and the second cushion sheet102that are stacked, folding the first edge E1or the second edge E2of the second cushion sheet102with the position P22of the second longitudinal glue towards a side of the first cushion sheet101, rolling and pressing the first edge E1or the second edge E2with the position P22of the second longitudinal glue after folding the first edge E1or the second edge E2, so that the first cushion sheet101and the second cushion sheet102are fixed at the position P22of the second longitudinal glue, to form THE packaging bag200.

Furthermore, the second longitudinal glue is arranged at the first edge E1, a width of the second edge E2is greater than a width of the first edge E1, the first edge E1is folded and fixed with the first cushion sheet101to form a bottom of the packaging bag200, and the second edge E2forms the cover21.

Compared to the sixth and seventh embodiments, the eighth embodiment involves pasting positions of the first cushion sheet101or the second cushion sheet102near the position P22of the second longitudinal glue onto the other second cushion sheet102or the other first cushion sheet101by folding the first edge E1or the second edge E2, to form the bottom of the packaging bag, instead of directly fixing the first cushion sheet101and the second cushion sheet102at the bottom of the packaging bag, which allows the packaging bag to have a greater depth for receiving articles with larger sizes.

Referring toFIG.19, the packaging bag production method of the eighth embodiment further includes:step A4, continuously unreeling the release paper400, and applying the fifth longitudinal glue on a surface of the release paper400facing the second cushion sheet102during the unreeling process. A position P5of the fifth longitudinal glue is continuously arranged along the feeding direction. During the unreeling process, pasting the position P5of the fifth longitudinal glue onto the second edge E2towards a direction of the second cushion sheet102; cutting the first cushion sheet101, the second cushion sheet102and the release paper400that are pressed and fixed by using the rolling cutting way, to form the packaging bag.

In the present disclosure, the packaging bags made by the sixth embodiment to the eighth embodiment do not require folding the strip cushion sheet compared to the related art, thus facilitating to produce large-sized packaging bags.

Moreover, the bottom of the packaging bag produced is a fixed structure after sizing glue, resulting in a strong packaging strength thereof.

A cushion sheet production module500according to the present disclosure is provided to produce the cushion sheet100.

There is a plurality of implementations for the cushion sheet production module. Specific details are as follows:a ninth embodiment of the present disclosure:referring toFIG.20, the cushion sheet production module500includes: a first unreeling unit51, a second unreeling unit52, a third unreeling unit53, a paper pressing unit54and a pulling roller55.

The first unreeling unit51is arranged on a machine50and configured to perform unreeling on the first surface10and continuously feed the first surface10along a length direction of the machine50. The third unreeling unit53is arranged on the machine50and configured to perform unreeling on the die-cutting paper31. The pulling roller55is arranged on the machine50and configured to stretch the die-cutting paper31to form the buffer layer301, and continuously feed the buffer layer301, so that the buffer layer301is located below the first surface10and synchronously and continuously fed with the first surface10. A feeding speed of the pulling roller55is greater than an unreeling speed of the third unreeling unit53. The second unreeling unit52is arranged on the machine50and configured to perform unreeling on the second surface20, and further configured to synchronously and continuously feed the second surface20with the buffer layer301along the length direction of the machine50. The second surface20is located below the buffer layer301.

A plurality of slits310is formed on the third surface30after die-cutting or cutting the third surface30. The plurality of slits310includes a plurality of rows, the plurality of slits310in the same row arranged at intervals, and the plurality of slits310in adjacent rows staggered with each other, to form a die-cutting paper31thereof. When an external force perpendicular to the plurality of slits310is applied to the die-cutting paper31, the plurality of slits310is twisted and deformed into a three-dimensional opening312. After all the plurality of slits310in the plurality of rows are twisted and deformed into three-dimensional openings312, a buffer layer301is formed. The buffer layer301is a grid structure, and at this time, a thickness of the buffer layer301expands relative to the third surface30, which can play a buffering and protective role thereof.

In the ninth embodiment of the present disclosure, there is only one third unreeling unit53and only one pulling roller55, and the buffer layer301formed that the pulling roller55is used to stretch the die-cutting paper31also has only one layer.

A fixing glue perpendicular to the feeding direction is applied at intervals on a side that at least one of the first surface10and the second surface20is opposite to the other of the first surface10and the second surface20, to form the position P11of the first horizontal glue. The fixing glue is applied continuously on edges of both sides of the first surface10and the second surface20along the feeding direction, to form the position P12of the first longitudinal glue.

For a clearer description, in two surfaces of each of the first surface10, the second surface20and the third surface30, the surface perpendicular to the machine50and facing downwards, is defined as a surface B, and the surface perpendicular to the machine50and facing upwards is defined as a surface A. Combining with the marked surfaces A and B in the figures, it can be understood the positions P11and P12of sizing glue.

The position P11of the first horizontal glue on the first surface10is opposite to the position P11of the first horizontal glue on the second surface20during the feeding process, and the position P12of the first longitudinal glue on the first surface10is opposite to the position P12of the first longitudinal glue on the second surface20during the feeding process.

The first horizontal glue can be applied to the one layer of buffer layer301, to form the position P11of the first horizontal glue, and/or applying the first longitudinal glue to form the position P12of the first longitudinal glue. The first horizontal glue and the first longitudinal glue can also be not applied on the buffer layer301with only one layer. When both the first horizontal glue and the first longitudinal glue are applied to the buffer layer301, the position P11of the first horizontal glue on the buffer layer301corresponds to the position P11of the first horizontal glue on the first surface10and/or the position P11of the first horizontal glue on the second surface20, and the position P12of the first longitudinal glue on the buffer layer301corresponds to the position P12of the first longitudinal glue on the first surface10and/or the position P12of the first longitudinal glue on the second surface20.

The paper pressing unit54is configured to roll, clamp and synchronously feed the first surface10, the second surface20and the buffer layer301with the position P11of the first horizontal glue and the position P12of the first longitudinal glue, so as to press and fix the first surface10, the second surface20and the buffer layer301at the position P11of the first horizontal glue and the position P12of the first longitudinal glue, to form the cushion sheet.

In the ninth embodiment of the present disclosure, the buffer layer301of the cushion sheet is a three-dimensional grid structure and clamped between the first surface10and the second surface20, except for the position P11of the first horizontal glue and the position P12of the first longitudinal glue, thereby achieving the purpose of buffer protection. The buffer layer301sandwiched between the first surface10and the second surface20is enclosed internally by the position P11of the first horizontal glue and the position P12of the first longitudinal glue on the first surface10and/or the second surface20, thereby forming a closed space and also providing insulation and thermal insulation thereof.

In the ninth embodiment of the present disclosure, the simplest way is to arrange the position P11of the first horizontal glue and the position P12of the first longitudinal glue only on the first surface10or the second surface20. When the first surface10, the second surface20and the buffer layer301are superimposed to be fed and pressed, because the buffer layer301is a three-dimensional grid structure and has a grid opening312, the first horizontal glue and the first longitudinal glue on the first surface10or the second surface20can still be fixed with the buffer layer301, the first surface10or the second surface20without the first horizontal glue and the first longitudinal glue through the grid opening312of the buffer layer301.

In the ninth embodiment of the present disclosure, the most firm sizing glue method is that both the positions P11of the first horizontal glue and the positions P12of the first longitudinal glue are arranged on the first surface10, the second surface20and the buffer layer301, and the positions P11of the first horizontal glue that are on the first surface10, the second surface20and the buffer layer301are relative to each other, as well as the positions P12of the first longitudinal glue.

In the present disclosure, both the position P11of the first horizontal glue and the position P12of the first longitudinal glue that are on the first surface10, the second surface20and the buffer layer301can be fixed to each other as long as the first surface10, the second surface20and the buffer layer301can be fixed to each other.

Referring toFIG.20andFIG.21, the paper pressing unit54includes at least one group of paper pressing rollers541, each of the at least one group of paper pressing rollers541including a paper pressing bump542arranged perpendicular to the feeding direction of the machine50and extending from one end of the paper pressing roller541towards the other end of the of paper pressing roller541; when the at least one group of paper pressing rollers541rotate, the paper pressing bump542is configured to press and fix the first surface10, the buffer layer301and the second surface20only at the positions P11of the first horizontal glue, to ensure that the buffer layer301between two adjacent positions P11of the first horizontal glue is still a three-dimensional grid structure.

Referring toFIG.21andFIG.22, the paper pressing unit54further includes at least one group of rotating units543, each group of rotating units543including two rotating rollers5431arranged parallel to each other, one rotating roller5431arranged above one edge of the first surface10and/or the second surface20along the feeding direction, and the other rotating roller5431arranged above the other edge of the first surface10and/or the second surface20along the feeding direction; when feeding the first surface10, the second surface20and the buffer layer301, the rotating roller5431pressed on both sides of the first surface10or the second surface20, and relative to the position P12of the first longitudinal glue, to fix the buffer layer301, the first surface10and the second surface20at the positions P12of the first longitudinal glue during the feeding process.

Referring toFIG.20, the production module500also includes a baking oven56arranged on the machine50and configured to heat the cushion sheet100to make the first surface10, the second surface20and the buffer layer301more firmly fixed to each other at the positions P11of the first horizontal glue and the positions P12of the first longitudinal glue.

The first surface10, the second surface20, and/or the buffer layer301that have been heated can make the first surface10, the second surface20, and/or the buffer layer301more firmly fixed at the positions P11of the first horizontal glue and the positions P12of the first vertical glue.

A tenth embodiment of the present disclosure:

A difference between the tenth embodiment and the ninth embodiment is that the cushion sheet material does not have the buffer layer, but is only formed by fixing the first surface10and the second surface20.

Referring toFIG.23, the cushion sheet production module500includes:a first unreeling unit51arranged on the machine50and configured to perform unreeling on the first surface10and continuously feed the first surface10along a length direction of the machine50;a second unreeling unit52arranged on the machine50and configured to perform unreeling on the second surface20and continuously and synchronously feed the second surface20with the first surface10along the length direction of the machine50, and the second surface20arranged below the first surface10; the first horizontal glue applied at intervals along a direction perpendicular to the feeding direction and applied on a surface of one of the first surface10and/or the second surface20facing the other of the first surface10or the second surface20; on the surface of the first surface10and/or the second surface20facing the other first surface10or the other second surface20, the first longitudinal glue continuously applied along edges of both sides of the feeding direction; the position P11of the first horizontal glue of the first surface10opposite to the position P11of the first horizontal glue of the second surface20during the feeding process, and the position P12of the first longitudinal glue of the first surface10opposite to the position P12of the first longitudinal glue of the second surface20during the feeding process;a paper pressing unit54configured to roll and clamp the position P11of the first horizontal glue and the position P12of the first longitudinal glue that are arranged on the first surface10and/or the second surface20, to press and fix the first and second surfaces10,20at the positions P11of the first horizontal glue and the positions P12of the first longitudinal glue, to form the cushion sheet100, wherein gas is sealed between the first surface10and the second surface20to provide a buffering effect for the cushion sheet100.

An eleventh embodiment of the present disclosure:referring toFIG.24, in the eleventh embodiment of the present disclosure, the production module500is used to produce a cushion sheet100with no less than two buffer layers301. A difference between the eleventh embodiment and the ninth embodiment is that there are two third unreeling unit53and two pulling rollers55, and the buffer layer301formed by using the pulling roller55also has two layers. During the continuous and synchronous unreeling process, the two layers of buffer layers301are arranged between the first surface10and the second surface20. When the position P11of the first horizontal glue and the position P12of the first longitudinal glue are set on the two layers of buffer layers301, the position P11of the first horizontal glue on the two layers of buffer layers301corresponds to the position P11of the first horizontal glue on the first surface10and the second surface20. The position P12of the first longitudinal glue on the two layers of buffer layers301also corresponds to the position P12of the first longitudinal glue on the first surface10and the second surface20.

One of the two pulling rollers55is configured to place the two layers of buffer layers301that have been stretched above or below the other of the two pulling rollers55, and synchronously feed along the feeding direction.

In the eleventh embodiment of the present disclosure, the first horizontal glue and the first longitudinal glue can also be omitted from the two layers of buffer layers301, as long as the first surface10, the second surface20and the two layers of buffer layers301can be fixed at the edges on both sides of the feeding direction and be fixed at intervals perpendicular to the feeding direction.

In the eleventh embodiment of the present disclosure, similarly, the buffer layer301can be set three or more layers. At this time, it is only necessary to add the third unreeling unit53and the pulling roller55, and ensure that the plurality of layers of buffer layers301that has been stretched is stacked and synchronously fed between the first surface10and the second surface20.

It should be noted that in the ninth embodiment to the eleventh embodiment of the present disclosure, both the first horizontal glue and the first longitudinal glue are applied on the first surface10, the buffer layer301and the second surface20is set before the unreeling process or during the unreeling process.

The production module of the present disclosure also includes the following embodiments:a twelfth embodiment of the present disclosure:a difference between the twelfth embodiment and the ninth embodiment or the eleventh embodiment is that: the first unreeling unit51is configured to perform unreeling on the first surface10that has not applied the first horizontal glue and the first longitudinal glue, the second unreeling unit52is configured to perform unreeling on the second surface20that has not applied the first horizontal glue and the first longitudinal glue, and the third unreeling unit53is configured to perform unreeling on the third surface30that has not applied the first horizontal glue and the first longitudinal glue, rather than performing unreeling on the die-cutting paper31.

In the twelfth embodiment of the present disclosure, the production module500applies the first horizontal glue and the first longitudinal glue to the first surface10and the second surface20during the feeding process, thereby forming the position P11of the first horizontal glue and the position P12of the first longitudinal glue. During the unreeling process of the third surface30, the third surface30is cut to form the die-cutting paper31, which is stretched to form the buffer layer301. The buffer layer301is synchronously and continuously fed with the first surface10and the second surface20.

Specifically, referring toFIG.25toFIG.27, the production module further500further includes a cutting roller57arranged between the third unreeling unit53and the pulling roller55and configured to cut the third surface30into the die-cutting paper31during the continuous feeding process. The cutting roller57includes rows of cutting knives571arranged on an outer surface thereof and extending from one end of the cutting roller57to the other end of the cutting roller57. The same row of cutting knives571include a plurality of protrusions5711arranged at intervals and configured to cut the die-cutting paper31to form a plurality of slits310, and the protrusions5711in two adjacent rows of the cutting knives571are arranged in a staggered manner.

A process of feeding the buffer layer301is that: the third surface30is first performed unreeling by the third unreeling unit53, then passes through the cutting roller57. The cutting roller57cuts the third surface30to form the die-cutting paper31, which is then stretched by the pulling roller55to form the buffer layer301, and then, the pulling roller55sends the buffer layer301to the machine50and is located below the first surface10.

The production module500further includes a first glue providing member501, a second glue providing member502and a third glue providing member503respectively arranged on the machine50, the first glue providing member501arranged on a front end of the pulling roller55and configured to roll and clamp the first surface10, and apply the first horizontal glue on the first surface10at intervals along a direction perpendicular to the feeding direction during the continuous feeding process; the second glue providing member502arranged on a front end of the paper pressing unit54and configured to roll and clamp the second surface20, and apply the first horizontal glue on the second surface20at intervals along a direction perpendicular to the feeding direction during the continuous feeding process; the third glue providing member arranged on a back end of the pulling roller55and configured to feed the buffer layer301and apply the first horizontal glue on the buffer layer301at intervals along a direction perpendicular to the feeding direction during the continuous feeding process, to form the position P11of the first horizontal glue.

Referring toFIG.27, the first glue providing member501, the second glue providing member502and the third glue providing member503have the same structure. Each of the first glue providing member501, the second glue providing member502and the third glue providing member503includes a gluing roller514, at least one rolling glue position515arranged on a peripheral surface of the gluing roller514, perpendicular to the feeding direction of the machine50and extending from one end of the gluing roller514to the other end of the gluing roller514; and wherein when the gluing roller514rotates, glues is applied on the first surface10and/or the second surface20and the buffer layer301, respectively, only when the rolling glue position515is in contact with the first surface10, the second surface20or the buffer layer301.

Each of the first glue providing member501, the second glue providing member502and the third glue providing member503further include a glue tank511, a glue taking roller512and a scraper513. The glue tank511is configured to contain condensed glue, and a portion of a circumference of the glue taking roller512is immersed in the glue. A rotation speed of the glue taking roller512is not less than that of the gluing roller514, and the gluing roller514rotates synchronously and continuously at the same speed as the feeding speed. And when the gluing roller514rotates, the rolling glue position515on the gluing roller514comes into contact with the circumferential surface of the glue taking roller512, and then detaches from the outer circumferential surface of the glue taking roller512after the rolling glue position515has been come into contact with the circumferential surface of the glue taking roller512. When the rolling glue position515is in contact with the circumferential surface of the glue taking roller512, the glue on the circumferential surface of the glue taking roller512is coated on surfaces of the rolling glue position515; when the gluing roller514continues to rotate, the rolling glue position515rotates to surfaces of the first surface10, the second surface20, or the buffer layer301to apply fixed glue to the surfaces of the first surface10, the second surface20or the buffer layer301, thereby forming the position P11of the first horizontal glue.

At least one tip of the scraper513is arranged near the circumference of the glue taking roller512. The scraper513is configured to scrape off excess glue of the glue taking roller512, thereby forming a glue layer thereof. A thickness of the glue layer can be adjusted by adjusting a distance between the scraper513and the glue taking roller512.

Referring toFIG.25, in the twelfth embodiment of the present disclosure, the production module500further includes a fourth glue providing member504configured to continuously apply fixed glue on the first surface10and/or the second surface20, or the buffer layer301along edges of both sides of the feeding direction, thereby forming the position P12of the first longitudinal glue.

In the twelfth embodiment of the present disclosure, there can be a plurality of fourth glue providing members504arranged according to the position P12of the first longitudinal glue to be set on the first surface10, the second surface20, and/or the buffer layer301. For example, as shown inFIG.25, two fourth glue providing members504are provided, and the fourth glue providing member504is configured to apply glue by spraying glue or scraping glue. One of the two fourth glue providing members504is arranged at a rear end of the first unreeling unit51and configured to apply the first horizontal glue to a surface of the first surface10facing the buffer layer301, while the other of the two fourth glue providing members504is arranged at a rear end of the second unreeling unit52and configured to apply the first horizontal glue to a surface of the second surface20facing the buffer layer301.

In the twelfth embodiment of the present disclosure, it is also possible to add the number of the fourth glue providing member504, for example, one fourth glue providing member504is added to be arranged at the back end of the pulling roller55, and configured to apply the first horizontal glue to a surface of the buffer layer301facing the first surface10.

In the twelfth embodiment of the present disclosure, there can be a plurality of layers of buffer layers301. When there is the plurality of layers of buffer layers301, adding the number of third unreeling units53and cutting roller57sis sufficient. During performing unreeling on the plurality of layers of buffer layers301, the plurality of layers of buffer layers301also needs to meet requirements that the plurality of layers of buffer layers301is arranged between the first surface10and the second surface20, and can be synchronously and continuously fed with the first surface10and the second surface20.

Compared to any one of the ninth embodiment to the eleventh embodiment, in the twelfth embodiment of the present disclosure, all the first surface10, the second surface20and the third surface30have the same materials, so it can save manpower and material resources during loading the first surface10, the second surface20and the third surface30, rather than requiring different purchases and preservation.

In addition, Compared to any one of the ninth embodiment to the eleventh embodiment, in the twelfth embodiment of the present disclosure, the sizing glue action that is applied on the first surface10, the die-cutting paper31formed by stretching the third surface30, and the second surface20is operated during their respective unreeling and feeding processes. It is not necessary to load in advance the first surface10, the second surface20and the die-cutting paper31that have already applied glue. If the first surface10, the second surface20and the die-cutting paper31also need to be wound up and stored, etc., after the first surface10, the second surface20and the die-cutting paper31are pre-glued, and then are performed unreeling through the first unreeling unit51, the second unreeling unit52and the third unreeling unit53, such above process is more complex and costs are increased. The twelfth embodiment of the present disclosure is beneficial for reducing costs.

In addition, a process of cutting the third surface30into the die-cutting paper31is also implemented during the feeding process, which is more convenient and simple.

For conveniences of subsequent description, the cushion sheet produced by each of the ninth embodiment, the eleventh embodiment and the twelfth embodiment of the present disclosure is taken as the cushion sheet with a first structure.

A thirteenth embodiment of the present disclosure:

A difference between the cushion sheet production module of the thirteenth embodiment and any one of the ninth embodiment to the twelfth embodiment is that: when producing the cushion sheet, a position P21of a second horizontal glue and/or a position P22of a second longitudinal glue are added to be arranged on an outer surface of the first surface10of the cushion sheet that is away from the second surface20, or an outer surface of the second surface20that is away from the first surface10, as shown inFIG.29.

During producing the cushion sheet of the thirteenth embodiment, a fixing glue perpendicular to the feeding direction is applied to an outer surface of the second surface20or the first surface10away from the buffer layer301, thereby forming the position P21of the second horizontal glue, and the fixed glue is continuously applied along a side edge of the feeding direction, thereby forming the position P22of the second longitudinal glue; the position P21of the second horizontal glue corresponds to the position P11of the first horizontal glue, and the position P22of the second longitudinal glue corresponds to the position P12of the first longitudinal glue.

In the thirteenth embodiment of the present disclosure, the position P21of the second horizontal glue and the position P22of the second longitudinal glue on the outer surface of the first surface10or the second surface20away from the buffer layer have been arranged on the first surface10or the second surface20before performing unreeling on the first surface10or the second surface20, or the glue can be applied to first surface10or the second surface20during the unreeling process of the first surface10or the second surface20.

When it is applied glue to the outer surface (A surface in the figures) of the first surface10or the second surface20that is away from the buffer layer during the unreeling or feeding process of the first surface10or the second surface20, the first glue providing member501or the second glue providing member502adopts a double-sided gluing way to apply glue, as shown inFIG.28andFIG.29. It adds a glue taking roller512, a gluing roller514and a glue tank511to be arranged on the outer surface of the first surface10or the second surface20that is away from the buffer layer301, and portions of the circumferences of the two glue taking rollers512are immersed in the glue, and the two gluing rollers514rotate synchronously and continuously, with the same rotation speed as the feeding speed. One of the two gluing rollers514applies the fixed glue to one surface of the first surface10or the second surface20, forming the position P21of the second horizontal glue, while the other of the two gluing rollers514applies the fixed adhesive to the other surface of the first surface10or the second surface20, thereby forming the position P21of the second horizontal glue.

Of course, in the thirteenth embodiment of the present disclosure, two first glue providing members501or two second glue providing members502can also be set. The two first glue providing members501and the two second glue providing members502are configured to apply the fixed glue to both sides of the first surface10or the second surface20. The position P21of the second horizontal glue is arranged on both surfaces of the first surface10or the second surface20.

Referring toFIG.29, in the thirteenth embodiment of the present disclosure, when it is applied glue to the outer surface of the first surface10or the second surface20that is away from the buffer layer, to form the second longitudinal glue during the unreeling or feeding process of the first surface10or the second surface20, a fourth glue providing member504can be added to be arranged on a side of the outer surface (A surface) of the first surface10or the second surface20that is away from the buffer layer. That is to say, each fourth glue providing member504is set on both sides of the first surface10or the second surface20in upward and downward directions. The position P22of the second longitudinal glue is formed on both sides of the first surface10or the second surface20along the feeding direction through spraying glue or coating glue by the fourth glue providing member504.

For conveniences of subsequent description, the cushion sheet produced by the thirteenth embodiment of the present disclosure is taken as the cushion sheet with a second structure.

At this point, applicant needs to illustrate that: in the production process of the cushion sheet100with the first structure and the cushion sheet100with the second structure, it is preferred that the width of the buffer layer301perpendicular to the feeding direction is less than the width of the first surface10and/or the second surface20perpendicular to the feeding direction, and the width of the first surface10is the same as the width of the second surface20, and two ends of the width direction of the first surface10and the second surface20extend out of the buffer layer. In this way, after applying glue to the surface of the first surface10and the second surface20facing the buffer layer301to form the position P12of the first longitudinal glue, the position P12of the first longitudinal glue on the first surface10or the second surface20can be directly fixed with the other of the first surface10or the second surface20, rather than needing to arrange the position P12of the first longitudinal glue on the buffer layer301, which can minimize steps and processes of sizing glue and improve production efficiency as much as possible.

A packaging bag production device600according to the present disclosure includes a plurality of embodiments as follows:a fourteenth embodiment of the present disclosure:

Referring toFIG.30andFIG.31and combined withFIG.12, the packaging bag production device600includes: two cushion production modules500, a fifth glue providing member61, a bag glue providing member62, at least one group of material pressing rollers63and a roll-cutting module64.

The two cushion sheet production modules500are configured to produce two cushion sheets100with the first structure, as shown inFIG.1, that is, the two cushion sheets100are not provided the position P21of the second horizontal glue and the position P22of the second longitudinal glue on the outer surface (A surface) of the first surface10and the second surface20that are away from the buffer layer301.

One of the two cushion sheet production modules500is configured to produce a first cushion sheet101and the other of the two cushion sheet production modules500is configured to produce a second cushion sheet102, the first cushion sheet101arranged above the second cushion sheet102and overlapped with the second cushion sheet102, and both the first cushion sheet101and the second cushion sheet102continuously and synchronously fed.

The fifth glue providing member61is configured to roll on a surface (B surface) of the first cushion sheet101facing the second cushion sheet102to apply the glue on the surface (B surface) of the first cushion sheet101facing the second cushion sheet102, so that the fixed glue perpendicular to the feeding direction is applied on the surface of the first cushion sheet101at intervals, to form the position P21of the second horizontal glue; or roll on a surface (A surface) of the second cushion sheet102facing the first cushion sheet101to apply the glue on the surface (A surface) of the second cushion sheet102facing the first cushion sheet101, so that the fixed glue perpendicular to the feeding direction is applied on the surface of the second cushion sheet102at intervals, to form the position P21of the second horizontal glue. The position P21of the second horizontal glue is opposite to the position P11of the first horizontal glue of the first cushion sheet101or the second cushion sheet102, and the position P22of the second longitudinal glue is opposite to one of the positions P12of the first longitudinal glue of the first cushion sheet101or the second cushion sheet102.

The bag glue providing member62is configured to continuously apply the glue to the B surface of the first cushion sheet101facing the second cushion sheet102, and/or the A surface of the second cushion sheet102facing the first cushion sheet101, a position that the bag glue providing member62applies the glue is arranged on a side edge of the first cushion sheet101or the second cushion sheet102along a length direction thereof, the position P22of the second longitudinal glue is formed after the bag glue providing member62applies the glue, and the position P22of the second longitudinal glue that is continuously applied is continuous along the length direction thereof.

The material pressing roller63is arranged at rear ends of the two cushion sheet production modules500and the bag glue providing member62and configured to clamp the first cushion sheet101and the second cushion sheet102, and roll and press the position P22of the second longitudinal glue after gluing by the bag glue providing member, as well as the position P21of the second horizontal glue on the first cushion sheet101or the second cushion sheet102, to fix the first cushion sheet101and the second cushion sheet102. A structure of the material pressing roller63is the same or similar to that of the paper pressing unit of the cushion sheet production module500.

Referring toFIG.30andFIG.31, the roll-cutting module64is arranged at the rear end of the material pressing roller63and configured to clamp the first cushion sheet101and the second cushion sheet102that are pressed and fixed, and cut at the position P21of the second horizontal glue on the first cushion sheet101and the second cushion sheet102that are fixed with each other during a rolling process, to form a plurality of packaging bags during the continuous feeding process.

The roll-cutting module64includes a roll-cutting roller641and a roll-cutting knife642arranged on the circumferential surface of the roll-cutting roller641and perpendicular to an end face of the roll-cutting roller641. When the roll-cutting roller641rotates to the point where the roll-cutting knife642comes into contact with the first cushion sheet101and the second cushion sheet102, as the roll-cutting roller641rotates, the roll-cutting knife642cuts the position P11of the first horizontal glue perpendicular to the feeding direction and/or the position P21of the second horizontal glue perpendicular to the feeding direction, thereby forming the packaging bag thereof.

Referring toFIG.32and combined withFIG.14toFIG.16, the packaging bag production device600further includes a covering paper module65.

The covering paper module65is arranged at a front end of the material pressing roller63and configured to perform unreeling on the covering paper300and continuously apply glue to the covering paper300along the edge of the feeding direction, to form a position P3of a third longitudinal glue. The position P3of the third longitudinal glue is arranged on a side of the covering paper300facing the first cushion sheet101. During synchronous feeding the covering paper300with the first cushion sheet101or the second cushion sheet102, the position P3of the third longitudinal glue is pasted on a side of the second cushion sheet102away from the position P22of the second longitudinal glue to form the cover21.

The packaging bag production device600further includes a release paper module66.

The release paper module66is arranged on the front end of the material pressing roller63. During the continuous unreeling process of the covering paper300, the release paper module66continuously applies the glue to a middle position of the covering paper300facing the first cushion sheet101, to form a position P5of a fourth longitudinal glue. The position P5of the fourth longitudinal glue is continuous along the feeding direction, and the release paper400is synchronously and continuously unreeled, so that the release paper400is pasted on the position P5of the fourth longitudinal glue of the covering paper300.

When the roll-cutting module64cuts the glue position perpendicular to the feeding direction, and synchronously cuts the covering paper300and the release paper400, to form the packaging bag200with a cover thereof.

A fifteenth embodiment of the present disclosure:referring toFIG.33, a difference between the fifteenth embodiment and the thirteenth embodiment is that: the two cushion sheet production modules500are configured to produce at least one cushion sheet102with the second structure, and the packaging bag production device does not have the fifth a glue providing member and the bag glue providing member.

At least one of the two cushion sheets is the cushion sheet102with the second structure. As the position P21of the second horizontal glue and the position P22of the second longitudinal glue have already been pre-set on one outer surface of the cushion sheet102with the second structure, the cushion sheet102with the second structure and the other cushion sheet101can be directly rolled and pressed together, and the cushion sheet102with the second structure and the other cushion sheet101can be directly fixed to form the packaging bag thereof.

Specifically, at least one cushion sheet102is provided with the position P21for the second horizontal glue and the position P22for the second longitudinal glue on the outer surface of the first and second surfaces that is away from the buffer layer.

A sixteenth embodiment of the present disclosure:referring toFIG.34andFIGS.17-18, a difference between the sixteenth embodiment and the thirteenth embodiment is that: a width of the first cushion sheet101perpendicular to the feeding direction is smaller than a width of the second cushion sheet102perpendicular to the feeding direction, and both sides of the width of the second cushion sheet102extend out of the first cushion sheet101, thereby forming the first edge E1and the second edge E2.

The position P22of the second longitudinal glue that is applied by the bag glue providing member62is only arranged at the first edge E1or the second edge E2of the second cushion sheet102along the feeding direction, and both the first edge E1and the second edge E2extend out of the first cushion sheet101. The first edge E1or the second edge E2with the position P22of the second longitudinal glue is a bottom edge of the bag.

In the sixteenth embodiment of the present disclosure, the packaging bag production device600further includes a folding module67arranged at the rear end of the bag glue providing member62and configured to fold the bottom edge of the bag of the second cushion sheet102after being continuously applied glue, so that the bottom edge of the bag wraps around opposite edges of the first cushion sheet101.

Referring toFIG.35andFIG.36, the folding module67includes a platform segment671and a curved surface672formed by extending from an edge of the platform segment671. The curved surface672has a larger inlet a1at one end thereof, and a smaller outlet a2at the other end thereof and parallel to the first cushion sheet101and the second cushion sheet102, wherein a direction of the inlet a1towards the outlet a2is the feeding direction. When the first cushion sheet101and the second cushion sheet102are synchronously and continuously fed into the inlet a1, the first edge E1or the second edge E2with the position P22of the second longitudinal glue is fed on the curved surface672and gradually folded under a pressure of the curved surface672.

In the sixteenth embodiment of the present disclosure, the packaging bag production device600further includes a material pressing belt pulley68configured to press the bottom edge of the bag that has been folded to fix to the first cushion sheet101. The first edge E1or the second edge E2without the position P22of the second longitudinal glue is the cover21, and a width of the cover21along a direction perpendicular to the feeding direction is greater than a width of the bottom edge of the bag.

Combined withFIG.19, the release paper module66is arranged at the front end of the material pressing roller63. During performing unreeling on the release paper400, the release paper module66applies a position P5of a fifth longitudinal glue on a surface of the release paper400facing the second cushion sheet102. The position P5of the fifth longitudinal glue is continuously arranged along the feeding direction. During the unreeling process, the position P5of the fifth longitudinal glue towards a direction of the second cushion sheet is adhered on the first edge E1or the second edge E2without the position P22of the second longitudinal glue, that is, the cover21. Cutting the first cushion sheet101, the second cushion sheet102and the release paper400that are pressed and fixed together by using a rolling cutting mode, to form the packaging bag200.