Patent Description:
Energy conservation and emission reduction are crucial to the sustainable development of the automobile industry. Electric vehicles, with their advantages in energy conservation and emission reduction, have become an important part of sustainable development of the automobile industry. For electric vehicles, battery technology is an important factor in connection with their development.

During battery production, when coating, rolling, and die-cutting have been performed on electrode plates, the electrode plates need to be wound to rolls and have adhesive applied thereon, for the ease of storage or transport. In conventional technologies, the success rate of automated adhesive application on electrode plate rolls is relatively low, about <NUM>%. When automated adhesive application on an electrode plate roll fails, the machine needs to be shut down and adjusted manually, which affects OEE (Overall Equipment Effectiveness, overall equipment effectiveness) of the production line.

In view of this, an adhesive application apparatus and a battery production line with the adhesive application apparatus need to be provided, so as to resolve a problem in the conventional technology that automated adhesive application on an electrode plate roll tends to fail.

According to a first aspect, this application provides an adhesive application apparatus, configured to apply a double-sided adhesive on an object surface. The double-sided adhesive includes first release paper, second release paper, and adhesive strips. A plurality of adhesive strips are spaced apart between the second release paper and the first release paper, where the first release paper detaches from the adhesive strip more easily than the second release paper. The adhesive application apparatus includes an unwinding mechanism, a first winding mechanism, an adhesive application mechanism, and a second winding mechanism. The unwinding mechanism is configured to dispose and unwind the double-sided adhesive. The first winding mechanism is configured to peel off and wind the first release paper. The adhesive application mechanism and the unwinding mechanism jointly define a first path, where the first path is used to guide the adhesive strip to move forward. The adhesive application mechanism includes an adhesive application member disposed on a side of the first path, where the adhesive application member is configured to apply pressure from a side of the first path to the double-sided adhesive, so as to attach the adhesive strip on an object surface. The second winding mechanism is configured to peel off and wind the second release paper.

In the foregoing solution, the double-sided adhesive with the first release paper and the second release paper is used, and the first winding mechanism and the second winding mechanism are configured to wind the first release paper and the second release paper respectively, so as to avoid the adhesive strip between the first release paper and the second release paper from being attached to a surface of the adhesive application member or another member and prevent adhesive application failure caused thereby. On the other hand, a plurality of adhesive strips are spaced apart, and the adhesive application member in the adhesive application mechanism is configured to apply pressure from a side of the double-sided adhesive to the double-sided adhesive, so that the adhesive strip can be directly attached to the object surface, without an adhesive cutting process or a cutter mechanism. This avoids the adhesive application failure due to adhesive cutting, thereby improving efficiency and success rate of adhesive application.

The following further describes the technical solution in this application.

In any implementation, a tension assembly is disposed between the adhesive application mechanism and the second winding mechanism, and the adhesive application mechanism, the second winding mechanism, and the tension assembly form a second path. The second path is used to guide the second release paper after being peeled to move forward, and the tension assembly can extend or shorten length of the second path. The tension assembly is disposed between the adhesive application mechanism and the second winding mechanism, so that the second release paper can be kept stretched on the second path. In addition, when the second winding mechanism does not rotate, the length of the second path is extended, so that the second release paper and the adhesive strip at the adhesive application mechanism move along the second path.

In any implementation, the tension assembly includes at least one position-adjustable movable wheel, and the movable wheel participates in defining the second path. When a position of the movable wheel is adjusted, the length of the second path is extended or shortened. The position-adjustable movable wheel is disposed, so the position of the movable wheel can be adjusted to change an arc of the second path, thereby changing a length of the second path between the adhesive application mechanism and the second winding mechanism. As a result, the position of the movable wheel can be adjusted, so that the second release paper and the adhesive strip at the adhesive application mechanism move along the second path.

In any implementation, the tension assembly further includes a fixed wheel disposed in cooperation with the movable wheel. A gap is formed between the fixed wheel and the movable wheel, the gap serves as a part of the second path, and the movable wheel can move along a direction toward or away from the fixed wheel. The fixed wheel is disposed in cooperation with the movable wheel, so that when the movable wheel moves relative to the fixed wheel, the gap between the movable wheel and the fixed wheel can be changed to change the length of the second path.

In any implementation, the tension assembly further includes a first driving member. The first driving member connects to the movable wheel, and the first driving member is configured to drive the movable wheel to move. The first driving member is disposed to provide kinetic energy for the movable wheel, so as to drive the movable wheel to move.

In any implementation, along the first path, a first guiding wheel is disposed between the unwinding mechanism and the first winding mechanism, and the first winding mechanism and the adhesive application mechanism are disposed on different sides of the first guiding wheel. The first winding mechanism and the first guiding wheel jointly define a third path used to guide the first release paper to move forward, and the first guiding wheel and the adhesive application mechanism jointly define part of the first path. The first guiding wheel is disposed to keep the first release paper, the adhesive strip, and the second release paper all stretched after detachment, so as to facilitate the adhesive application mechanism in applying adhesives.

In any implementation, along the first path, a detection apparatus is disposed between the first winding mechanism and the adhesive application mechanism, configured to detect whether any adhesive strip is present on a surface of the second release paper. A scenario, in which no adhesive strip is present on a surface of the second release paper because an adhesive strip is attached to the first release paper when the first release paper is detached from the adhesive strip and the second release paper, can be detected. This avoids missed adhesive application due to absence of the adhesive strip.

In any implementation, the adhesive application member is configured to be able to move back and forth along a direction perpendicular to the adhesive strip. The adhesive application member moves back and forth along the direction perpendicular to the adhesive strip, so that the adhesive application member can apply perpendicular pressure to the adhesive strip from a side, opposite the adhesive strip, of the second release paper. In this way, the adhesive strip is attached to the object surface.

In any implementation, the adhesive application mechanism further includes a first tension wheel and a second tension wheel. Along the first path, the first tension wheel and the second tension wheel are respectively disposed on sides upstream and downstream of the adhesive application member, and the first tension wheel, the second tension wheel, and the adhesive application member jointly define part of the first path. The second release paper is stretched to avoid displacement of the second release paper and the adhesive strip due to insecure placement during movement. In addition, when the length of the second path is being adjusted, the tension assembly can drive the second release paper and the adhesive strip to move.

According to a second aspect, this application further provides a battery production line, including the adhesive application apparatus according to any one of the foregoing implementations, and the adhesive application apparatus is configured to apply a double-sided adhesive on a surface of an electrode plate.

The drawings as a part of this application are intended for better understanding of this application, and constitute a part of this application. Exemplary implementations and descriptions thereof in this application are intended to interpret this application and do not constitute any improper limitation on this application.

To describe the technical solutions in the implementations of this application more clearly, the following briefly describes the accompanying drawings required for describing the implementations. Apparently, the accompanying drawings in the following description show merely some implementations of this application, and a person of ordinary skill in the art may derive other drawings from these accompanying drawings without creative efforts.

To make the objectives, features and advantages of this application more comprehensible, the following further describes specific implementations of this application in detail with reference to the accompanying drawings. In the following descriptions, numerous specific details are set forth in order to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from the ways described herein, and persons skilled in the art can make similar improvements without departing from the connotation of this application. Therefore, this application is not limited by the specific implementations disclosed below.

Unless otherwise defined, all technical and scientific terms used herein shall have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used herein are merely intended to describe the specific implementations but not intended to constitute any limitation on this application. The terms "include", "comprise", and "having" and any other variations thereof in the specification, the claims and the foregoing brief description of drawings of this application are intended to cover a non-exclusive inclusion.

In the descriptions of implementations of this application, the term "and/or" in this application describes only an association relationship for describing associated objects and represents that three relationships may exist. For example, A and/or B may represent the following three cases: A alone, both A and B, and B alone. In addition, a character "/" in this specification generally indicates an "or" relationship between contextually associated objects.

In the descriptions of this application, it should be understood that the orientations or positional relationships indicated by the terms "center", "vertical", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "perpendicular", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", " radial", "circumferential", and the like are based on the orientations or positional relationships shown in the accompanying drawings, are merely intended to facilitate the descriptions of this application and simplify the descriptions, are not intended to indicate or imply that the apparatuses or components mentioned in this application must have specific orientations, or be constructed and operated for a specific orientation, and therefore shall not be construed as a limitation to this application.

In addition, the terms "first" and "second" are merely for the purpose of description, and shall not be understood as any indication or implication of relative importance or any implicit indication of the number of technical features indicated. Therefore, a feature defined by "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this application, the meaning of "plurality" is at least two, for example two or three, unless otherwise specifically defined.

In this application, unless otherwise specified and defined explicitly, the terms "mount", "connect", "join", and "fasten" should be understood in their general senses. For example, they may refer to a fixed connection, a detachable connection, or an integral connection, may refer to a mechanical connection or electrical connection, any may refer to a direct connection, an indirect connection via an intermediate medium, or an interaction between two elements, unless otherwise defined explicitly. Persons of ordinary skill in the art can understand specific meanings of these terms in this application as appropriate to specific situations.

In this application, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Further, the first feature being "on", "above", or "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply mean that the first feature is horizontally higher than the second feature. The first feature being "under", "below", or "beneath" the second feature may mean that the first feature is directly beneath or obliquely beneath the second feature, or simply mean that the first feature is horizontally lower than the second feature.

It should be noted that when a component is referred to as being "fastened to" or "disposed at" another component, it may be directly fastened to the another component, or there may be a component in between. When a component is deemed as being "connected to" another component, it may be directly connected to the another component, or there may be a component in between.

Currently, from a perspective of market development, application of electric vehicle batteries is becoming more and more extensive. Electric vehicle batteries are widely used not only in energy storage power supply systems such as hydro, thermal, wind, and solar power plants, but also in electric transportation tools such as electric bicycles, electric motorcycles, electric vehicles, and fields such military equipment and aerospace. With the continuous expansion of traction battery application fields, the market demand is also constantly expanding, and battery production is also moving towards a more efficient direction.

Battery production includes a process for automated adhesive application of electrode plate rolls. To apply an adhesive on electrode plate rolls, a continuous double-sided adhesive is usually used for attaching the electrode plates. When the double-sided adhesive has been attached to the electrode plates, a cutter is needed to cut the double-sided adhesive, so as to complete adhesive application. The inventor has found that the cutter tends to be blunt and positioning of the cutter is unreliable. In that case, cutting failure may be caused or release paper of the double-sided adhesive may be cut, resulting in a broken tape. In addition, the double-sided adhesive is prone to being attached to the cutter or the adhesive application roll, causing adhesive application failure and affecting device operation. Therefore, a success rate of automated adhesive application on the electrode plates is relatively low.

In order to alleviate the problem of low success rate of automated adhesive application on electrode plates, the inventor has found that segmented double-sided adhesive tape with double sides of release paper and a suitable adhesive application apparatus can be used to perform automated adhesive application on the electrode plates. Specifically, the adhesive application apparatus may include two winding mechanisms to wind the two pieces of release paper respectively. The two winding mechanisms rotate to make the double-sided adhesive move along the predefined path, so as to attach the segmented double-sided adhesive to an object surface by the adhesive application mechanism.

Based on the considerations above, in order to solve the problem that the success rate of automated adhesive application on electrode plate rolls is low, the inventor has researched in depth and designed an adhesive application apparatus. When the segmented double-sided adhesive with double sides of release paper is used, the cutter is not needed to cut the double-sided adhesive and the double-sided adhesive can be prevented from being attached to the cutter or a surface of the adhesive application roll, so that the adhesive application failure due to the double-sided adhesive being attached to the cutter or the adhesive application roll caused by the cutter being blunt or inaccurate positioning can be avoided, thereby increasing the success rate of automated adhesive application on the electrode plates.

The adhesive application apparatus can be used in, but not limited to, a battery production line, and can also be configured to apply double-sided adhesives to other objects. The battery production line provided in this application can be used for producing new energy batteries.

The following describes preferred implementations in this application with reference to the drawings.

The adhesive application apparatus <NUM> illustrated in this application uses a double-sided adhesive <NUM> as shown in <FIG>. The double-sided adhesive <NUM> includes first release paper <NUM>, second release paper <NUM>, and a plurality of adhesive strips <NUM>. The plurality of adhesive strips <NUM> are spaced apart between the second release paper <NUM> and the first release paper <NUM>, where the first release paper <NUM> detaches from the adhesive strip <NUM> more easily than the second release paper <NUM>.

The first release paper <NUM> and the second release paper <NUM> are anti-adhesive paper that prevents the prepreg from sticking and can protect the prepreg from contamination. The prepreg can be attached to the release paper, but not securely. For example, in this application, the prepreg is the adhesive strip <NUM>. The adhesive strip <NUM> can be attached to the release paper, but not securely. Two opposite surfaces of the adhesive strip <NUM> are adhesive, and the first release paper <NUM> and the second release paper <NUM> are disposed on the two adhesive surfaces of the adhesive strip <NUM> respectively, so as to isolate the adhesive strip <NUM> from the outside, thereby preventing the adhesive strip <NUM> from being attached to another object. The two adhesive surfaces of the adhesive strip <NUM> can be completely detached from the first release paper <NUM> and the second release paper <NUM>. The first release paper <NUM> detaches from the adhesive strip <NUM> more easily than the second release paper <NUM>, so that when the first release paper <NUM> and the second release paper <NUM> are stripped in two directions, the adhesive strip <NUM> stays attached to the surface of the second release paper <NUM> and is detached from the first release paper <NUM>. For ease of production, preferably, every two adjacent adhesive strips <NUM> are evenly spaced apart.

<FIG> shows the adhesive application apparatus <NUM> according to an embodiment of this application, configured to apply the double-sided adhesive <NUM> on an object surface. In this application, descriptions are provided based on an example, in which the object surface is a surface of an electrode plate roll in a battery cell. That is, the double-sided adhesive <NUM> is applied to the surface of an electrode plate roll. In another implementation, the adhesive application apparatus <NUM> may alternatively be used for applying the double-sided adhesive <NUM> to another object.

As shown in <FIG>, the adhesive application apparatus <NUM> includes an unwinding mechanism <NUM>, a first winding mechanism <NUM>, an adhesive application mechanism <NUM>, and a second winding mechanism <NUM>. The unwinding mechanism <NUM> is configured to dispose and unwind the double-sided adhesive <NUM>. The first winding mechanism <NUM> is configured to peel off and wind the first release paper <NUM>. The adhesive application mechanism <NUM> and the unwinding mechanism <NUM> jointly define a first path, and the first path is used to guide the adhesive strip <NUM> to move forward. The adhesive application mechanism <NUM> includes an adhesive application member <NUM> disposed on one side of the first path, where the adhesive application member <NUM> is configured to apply pressure from the one side of the first path to the double-sided adhesive <NUM>, so as to attach the adhesive strip <NUM> to an object surface. The second winding mechanism <NUM> is configured to peel off and wind the second release paper <NUM>.

The unwinding mechanism <NUM> is configured to fasten the winded double-sided adhesive <NUM> and unwind the double-sided adhesive <NUM> by rotating. For example, the unwinding mechanism <NUM> includes an unwinding wheel that can rotate around its own axis, and the unwinding wheel is used for setting the winded double-sided adhesive. Further, the unwinding mechanism <NUM> may further be provided with a driving apparatus to drive the unwinding wheel to rotate. The driving apparatus may be an electrical motor, a heat engine, or the like.

The first winding mechanism <NUM> is used for winding the first release paper <NUM>. When the first release paper <NUM> is being winded, the first release paper <NUM> continuously strips from the adhesive strip <NUM>, and finally is completely detached from the adhesive strip <NUM>. For example, the first winding mechanism <NUM> includes a winding wheel that can rotate around its own axis, and the winding wheel is used for setting the first release paper <NUM>. Further, the first winding mechanism <NUM> may be provided with a driving apparatus to drive the winding wheel to rotate. The driving apparatus may be an electrical motor, a heat engine, or the like.

Along a moving direction of the adhesive strip <NUM>, the adhesive application mechanism <NUM> is disposed on a downstream side of the first winding mechanism <NUM>, and is configured to guide the second release paper <NUM> and the adhesive strip <NUM>. In this way, the second release paper <NUM> and the adhesive strip <NUM> move along the first path, and the adhesive strip <NUM> is pressed to be attached to the object surface. In this implementation, the adhesive application mechanism <NUM> can attach the adhesive strip <NUM> to surfaces of the electrode plate rolls. In this implementation, "downstream" can be understood as a location or a direction, on a moving path of the adhesive strip <NUM>, further away from the unwinding mechanism <NUM>.

The adhesive application member <NUM> is provided on one side of the first path, and can apply pressure from one side of the first path to the double-sided adhesive <NUM>. In the implementation shown in <FIG>, the adhesive application member <NUM> can apply pressure to the adhesive strip <NUM> from one side, opposite the adhesive strip <NUM>, of the second release paper <NUM>, so that the adhesive strip <NUM> is attached to the object surface.

Along a moving direction of the second release paper <NUM>, the second winding mechanism <NUM> is disposed on a downstream side of the adhesive application mechanism <NUM>. The second winding mechanism <NUM> is configured to wind the second release paper <NUM>, and provides a pulling force for the second release paper <NUM> and the adhesive strip <NUM> to move along the first path. For example, the second winding mechanism <NUM> includes a winding wheel that can rotate around its own axis, and the winding wheel is used for setting the second release paper <NUM>. Further, the second winding mechanism <NUM> may be provided with a driving apparatus to drive the winding wheel to rotate. The driving apparatus may be an electrical motor, a heat engine, or the like. In this implementation, "downstream" can be understood as a location or a direction, on a moving path of the adhesive strip <NUM>, further away from the unwinding mechanism <NUM>.

When the adhesive application apparatus <NUM> in the foregoing solutions is used to apply the double-sided adhesive <NUM> on the object surface, the winded double-sided adhesive <NUM> is fastened to the unwinding mechanism <NUM>, the first release paper <NUM> of the double-sided adhesive <NUM> is winded by the first winding mechanism <NUM>, and the second release paper <NUM> passes through the adhesive application mechanism <NUM> along the first path and is finally winded by the second winding mechanism <NUM>. The second winding mechanism <NUM> rotates and drives the second release paper <NUM> and the adhesive strip <NUM> to move along the first path. When the adhesive strip <NUM> passes through the adhesive application mechanism <NUM>, the adhesive application member <NUM> in the adhesive application mechanism <NUM> applies pressure to the adhesive strip <NUM> from one side, opposite the adhesive strip <NUM>, of the second release paper <NUM>, so that the adhesive strip <NUM> is attached to the object surface. In the foregoing process, the first release paper <NUM>, the second release paper <NUM>, and the adhesive strip <NUM> first move together along the first path. When the first release paper <NUM> moves along the second path and is peeled off from the double-sided adhesive <NUM>, the second release paper <NUM> and the adhesive strip <NUM> continue to move along the first path. When the adhesive strip <NUM> is attached to the object surface, the second release paper <NUM> is winded by the second winding mechanism <NUM>.

In the foregoing solution, the double-sided adhesive <NUM> with the first release paper <NUM> and the second release paper <NUM> is used, and the first winding mechanism <NUM> and the second winding mechanism <NUM> are configured to wind the first release paper <NUM> and the second release paper <NUM> respectively, so as to avoid the adhesive strip <NUM> between the first release paper <NUM> and the second release paper <NUM> from being attached to a surface of the adhesive application member <NUM> or another member and prevent adhesive application failure caused thereby. On the other hand, a plurality of adhesive strips <NUM> are spaced apart, and the adhesive application member <NUM> in the adhesive application mechanism <NUM> is configured to apply pressure from a side of the double-sided adhesive <NUM> to the double-sided adhesive <NUM>, so that the adhesive strip <NUM> can be directly attached to the object surface without an adhesive cutting process or a cutter mechanism. This avoids the adhesive application failure due to adhesive cutting, thereby improving efficiency and success rate of adhesive application.

Refer to <FIG>. According to some implementations of this application, optionally, a tension assembly <NUM> is disposed between the adhesive application mechanism <NUM> and the second winding mechanism <NUM>, where the adhesive application mechanism <NUM>, the second winding mechanism <NUM>, and the tension assembly <NUM> form a second path. The second path is used to guide the second release paper <NUM> after being peeled to move forward, and the tension assembly <NUM> is able to extend or shorten length of the second path.

As shown in <FIG>, along the moving path of the second release paper <NUM>, the adhesive application mechanism <NUM>, the tension assembly <NUM>, and the second winding mechanism <NUM> are arranged in sequence and form a second path. When the second release paper <NUM> and the adhesive strip <NUM> pass through the adhesive application member <NUM> in the adhesive application mechanism <NUM>, the adhesive strip <NUM> detaches from the second release paper <NUM>, the adhesive strip <NUM> is attached to the object surface, and the second release paper <NUM> continues to move along the second path.

The tension assembly <NUM> is disposed between the adhesive application mechanism <NUM> and the second winding mechanism <NUM>, so that the second release paper <NUM> can be kept stretched on the second path. In addition, when the second winding mechanism <NUM> does not rotate, the length of the second path is extended, so that the second release paper <NUM> and the adhesive strip <NUM> at the adhesive application mechanism <NUM> move along the second path.

Refer to <FIG>. According to some implementations of this application, optionally, the tension assembly <NUM> includes at least one position-adjustable movable wheel <NUM>, where the movable wheel <NUM> participates in defining the second path. When a position of the movable wheel <NUM> is adjusted, the length of the second path is extended or shortened.

The movable wheel <NUM> can move relative to the adhesive application mechanism <NUM> and the second winding mechanism <NUM>, so that the length of the second path can be adjusted by adjusting the position of the movable wheel <NUM>. In the implementation shown in <FIG>, the movable wheel <NUM> can move horizontally, and the length of the second path is changed during such movement.

A plurality of movable wheels <NUM> may be provided and all participate in defining the second path. In this case, when the position of any movable wheel <NUM> is adjusted, the length of the second path is extended or shortened. In the implementation shown in <FIG>, two movable wheels <NUM> are provided and both participate in defining the second path.

The position-adjustable movable wheel <NUM> is disposed, and the position of the movable wheel <NUM> can be adjusted to change an arc of the second path, thereby changing a length of the second path between the adhesive application mechanism <NUM> and the second winding mechanism <NUM>. In this way, the position of the movable wheel <NUM> is adjusted, so that the second release paper <NUM> and the adhesive strip <NUM> at the adhesive application mechanism <NUM> move along the second path.

Refer to <FIG>. According to some implementations of this application, optionally, the tension assembly <NUM> further includes a fixed wheel <NUM> disposed in cooperation with the movable wheel <NUM>. A gap is formed between the fixed wheel <NUM> and the movable wheel <NUM>, the gap serves as a part of the second path, and the movable wheel <NUM> is able to move toward or away from the fixed wheel <NUM>.

The second release paper <NUM> passes through the fixed wheel <NUM> and the movable wheel <NUM> in sequence or passes through the fixed wheel <NUM> and the movable wheel <NUM> in sequence, so that the gap between the fixed wheel <NUM> and the movable wheel <NUM> forms a part of the second path. When the movable wheel <NUM> moves toward the fixed wheel <NUM>, the gap between the movable wheel <NUM> and the fixed wheel <NUM> becomes smaller, and the length of the second path is shortened; when the movable wheel <NUM> moves away from the fixed wheel <NUM>, the gap between the movable wheel <NUM> and the fixed wheel <NUM> becomes larger, and the length of the second path is extended.

The fixed wheel <NUM> and the movable wheel <NUM> are disposed in cooperation, and the fixed wheel <NUM> and the movable wheel <NUM> may be disposed in a one-to-one correspondence. As shown in <FIG>, two movable wheels <NUM> and two fixed wheel <NUM> are provided, each movable wheel <NUM> and a corresponding fixed wheel <NUM> are spaced apart, so that when the movable wheel <NUM> moves, the gap between the movable wheel <NUM> and the corresponding fixed wheel <NUM> becomes larger or smaller, thereby extending or shortening the length of the second path. In another implementation, the fixed wheel <NUM> and the movable wheel <NUM> are spaced apart and may be different in quantity. For example, one movable wheel <NUM> is disposed between two fixed wheels <NUM>, or one fixed wheel <NUM> is disposed between two movable wheels <NUM>.

The fixed wheel <NUM> is disposed in cooperation with the movable wheel <NUM>, so that when the movable wheel <NUM> moves relative to the fixed wheel <NUM>, the gap between the movable wheel <NUM> and the fixed wheel <NUM> can be changed to change the length of the second path.

According to some implementations of this application, optionally, the tension assembly <NUM> further includes a first driving member <NUM> (not shown in the figure). The first driving member <NUM> connects to the movable wheel <NUM>, and the first driving member <NUM> is configured to drive the movable wheel <NUM> to move.

The first driving member <NUM> is configured to provide kinetic energy for the movable wheel <NUM> to move, and may be a cylinder, an electric motor, a heat engine, or the like. The first driving member <NUM> is disposed to provide kinetic energy for the movable wheel <NUM>, so as to drive the movable wheel <NUM> to move.

Referring to <FIG>, according to some implementations of this application, optionally, along the first path, a first guiding wheel <NUM> is disposed between the unwinding mechanism <NUM> and the first winding mechanism <NUM>. The first winding mechanism <NUM> and the adhesive application mechanism <NUM> are disposed on different sides of the first guiding wheel <NUM>. The first winding mechanism <NUM> and the first guiding wheel <NUM> jointly define a third path for guiding the first release paper <NUM> to move forward, and the first guiding wheel <NUM> and the adhesive application mechanism <NUM> jointly define part of the first path.

As a point where the first release paper <NUM> is separated from the adhesive strip <NUM> and the second release paper <NUM>, the second guiding wheel <NUM> can define, together with the first winding mechanism <NUM>, the third path that the first release paper <NUM> moves on, and can further define, together with the adhesive application mechanism <NUM>, the first path that the second release paper <NUM> and the adhesive strip <NUM> move on.

The first guiding wheel <NUM> is disposed to keep the first release paper <NUM>, the adhesive strip <NUM>, and the second release paper <NUM> stretched, so as to facilitate the adhesive application mechanism <NUM> in applying adhesives.

Refer to <FIG>. According to some implementations of this application, optionally, along the second path, a second guiding wheel <NUM> is disposed between the adhesive application mechanism <NUM> and the second winding mechanism <NUM>. The adhesive application mechanism <NUM> and the second winding mechanism <NUM> are disposed on different sides of the second guiding wheel <NUM>. The adhesive application mechanism <NUM>, the second guiding wheel <NUM>, the tension assembly <NUM>, and the second winding mechanism <NUM> jointly define the second path. Preferably, as shown in <FIG>, the second guiding wheel <NUM> is between the adhesive application mechanism <NUM> and the tension assembly <NUM>.

Refer to <FIG>. According to some implementations of this application, optionally, along the first path, a detection apparatus <NUM> is disposed between the first winding mechanism <NUM> and the adhesive application mechanism <NUM>, and is configured to detect whether any adhesive strip <NUM> is present on a surface of the second release paper <NUM>.

The detection apparatus <NUM> is configured to detect whether any adhesive strip <NUM> is present on a surface of the second release paper <NUM>. A scenario, in which no adhesive strip <NUM> is present on a surface of the second release paper <NUM> because an adhesive strip <NUM> is attached to the first release paper <NUM> when the first release paper <NUM> is detached from the adhesive strip <NUM> and the second release paper <NUM>, can be detected. This avoids missed adhesive application due to absence of the adhesive strip <NUM>.

The detection apparatus <NUM> may be an optical detection mechanism, and can determine whether any adhesive strip <NUM> is present on the surface of the second release paper <NUM> based on different surface colors of the second release paper <NUM> and the adhesive strip <NUM>.

Refer to <FIG>. According to some implementations of this application, optionally, the adhesive application member <NUM> is configured to be able to move back and forth along a direction perpendicular to the adhesive strip <NUM>.

The adhesive application member <NUM> moves back and forth along the direction perpendicular to the adhesive strip <NUM>, so that the adhesive application member <NUM> can apply perpendicular pressure to the adhesive strip <NUM> from a side, opposite the adhesive strip <NUM>, of the second release paper <NUM>, so that the adhesive strip <NUM> is attached to the object surface.

In the implementation as shown in <FIG>, the adhesive application member <NUM> is connected to the second driving member <NUM>, and the second driving member <NUM> is configured to provide kinetic energy for the adhesive application member <NUM> to move back and forth perpendicular to the adhesive strip <NUM>, where the second driving member <NUM> may be a cylinder, a heat engine, an electric motor, or the like.

Referring to <FIG>, according to some implementations of this application, optionally, the adhesive application mechanism <NUM> further includes a first tension wheel <NUM> and a second tension wheel <NUM>. Along the first path, the first tension wheel <NUM> and the second tension wheel <NUM> are respectively disposed on sides upstream and downstream of the adhesive application member <NUM>, and the first tension wheel <NUM>, the second tension wheel <NUM>, and the adhesive application member <NUM> jointly define part of the first path.

The first tension wheel <NUM> and the second tension wheel <NUM> are used to stretch the second release paper <NUM>, so as to avoid displacement of the second release paper <NUM> and the adhesive strip <NUM> due to insecure placement during movement. In this way, the second release paper <NUM> and the adhesive strip <NUM> are driven to move when the tension assembly <NUM> is adjusting the length of the second path.

According to some implementations of this application, as shown in <FIG>, this application provides the adhesive application apparatus <NUM> that uses the double-sided adhesive <NUM> shown in <FIG>. The adhesive application apparatus <NUM> includes the unwinding mechanism <NUM>, the first winding mechanism <NUM>, the adhesive application mechanism <NUM>, the tension assembly <NUM>, and the second winding mechanism <NUM>. When the double-sided adhesive <NUM> is unwound by the unwinding mechanism <NUM>, the first guiding wheel <NUM> and the first winding mechanism <NUM> jointly define a moving path of the first release paper <NUM>, and the path is denoted as the third path. The first guiding wheel <NUM> and the adhesive application mechanism <NUM> jointly define a moving path of the second release paper <NUM> and the adhesive strip <NUM>, and the path is denoted as the first path. The adhesive application mechanism <NUM>, the tension assembly <NUM>, and the second winding mechanism <NUM> jointly define a moving path of the second release paper <NUM> that is detached from the adhesive strip <NUM>, and the path is denoted as the second path.

When the adhesive application apparatus <NUM> in the foregoing solutions is used to apply the double-sided adhesive <NUM> on the object surface, the winded disposed double-sided adhesive <NUM> is fastened to the unwinding mechanism <NUM>, the first release paper <NUM> of the double-sided adhesive <NUM> is winded by the first winding mechanism <NUM> along the third path, and the second release paper <NUM> and the adhesive strip <NUM> pass through the detection apparatus <NUM> along the first path, where whether any adhesive strip <NUM> is present on the surface of the second release paper <NUM> is detected, and reaches the adhesive application mechanism <NUM>. The second release paper <NUM> and the adhesive strip <NUM> pass through the first tension wheel <NUM> and the adhesive application member <NUM> successively, the second release paper <NUM> and the adhesive strip <NUM> are separated at the adhesive application member <NUM>, and the second release paper <NUM> that is separated from the adhesive strip <NUM> continues to pass through the tension assembly <NUM> along the second path and reaches the second winding mechanism <NUM>. In the adhesive application mechanism <NUM>, the second release paper <NUM> is stretched between the first tension wheel <NUM> and the second tension wheel <NUM>, and the second driving member <NUM> drives the adhesive application member <NUM> to apply pressure to the adhesive strip <NUM> from one side, opposite the adhesive strip <NUM>, of the second release paper <NUM>. Then the second winding mechanism <NUM> stops rotating, the movable wheel <NUM> in the tension mechanism moves along a direction away from the fixed wheel <NUM>. In this way, the second path is extended, driving the second release paper <NUM> and the adhesive strip <NUM> in the adhesive application mechanism <NUM> to move forward, and an adhesive is applied on the object surface. When the adhesive application is complete, the second winding mechanism <NUM> continues rotating to wind the second release paper <NUM>, and the movable wheel <NUM> is restored to an initial position, so as to prepare for the next adhesive application.

Claim 1:
An adhesive application apparatus (<NUM>) for applying a double-sided adhesive (<NUM>) on a surface of an object, wherein the double-sided adhesive (<NUM>) comprises a first release paper (<NUM>), a second release paper (<NUM>), and a plurality of adhesive strips (<NUM>), the plurality of adhesives strips being spaced apart between the second release paper (<NUM>) and the first release paper (<NUM>), wherein the first release paper (<NUM>) detaches from the adhesive strip (<NUM>) more easily than the second release paper (<NUM>), wherein the adhesive application apparatus (<NUM>) comprises:
an unwinding mechanism (<NUM>), configured to dispose and unwind the double-sided adhesive (<NUM>);
a first winding mechanism (<NUM>), configured to peel off and wind the first release paper (<NUM>);
an adhesive application mechanism (<NUM>), wherein the adhesive application mechanism (<NUM>) and the unwinding mechanism (<NUM>) jointly define a first path, the first path being used to guide the adhesive strip (<NUM>) to move forward, and the adhesive application mechanism (<NUM>) comprises an adhesive application member (<NUM>) disposed on one side of the first path, wherein the adhesive application member (<NUM>) is configured to apply pressure from the one side of the first path to the double-sided adhesive (<NUM>), to attach the adhesive strip (<NUM>) to an object surface; and
a second winding mechanism (<NUM>), configured to peel off and wind the second release paper (<NUM>).