Inflatable boat processing method, inflatable boat and processing devices thereof

An inflatable boat processing method, an inflatable boat and a processing device thereof, wherein the processing method comprising: cutting material into boat-side material pieces and a boat bottom material piece following an inflatable boat sample; connecting the adjacent edges of the boat-side material pieces in an overlapped mode, thereby obtaining a boat-side body; connecting the boat-side body with the boat bottom, wherein a first connecting end of the boat-side body is connected with the boat bottom material piece in an overlapped mode by means of pressing and ultrasonic bonding; sealing the boat-side body, wherein the edge of the first connecting end is connected with the edge of the second connecting end of the boat-side body in an overlapped mode; obtaining an inflatable boat. A heating-and-pressing device and an ultrasonic soldering device are adopted to perform hot-melting and pressing, thereby achieving the connection of two material pieces using ultrasonic bonding.

TECHNICAL FIELD

This disclosure generally relates to the technical field of inflatable boats, and more particularly, to an inflatable boat processing method, an inflatable boat, and processing devices thereof.

BACKGROUND

An inflatable boat is a boat that is filled with air during use but can be deflated for storage. The boat body, which is made of an airtight elastic material, comprises a floating chamber which forms a boat-side body. After the boat-side body and the boat bottom are connected and inflated, an inflatable boat having a certain shape is obtained.

The traditional method for processing an inflatable boat is to cut the airtight elastic material into multiple pieces and then bond them by glue. The shortcomings of the aforesaid method are: first, the bonding process inevitably uses a large amount of glue, and thus the volatilization of the solvent contained in the glue worsens the air in the workshop and damages the workers' health; second, as the inflatable boat is normally made through bonding multiple pieces of elastic material, to achieve the shaping of the inflatable boat, a plurality of arc-shaped edges are formed at the positions where the multiple pieces of elastic material are overlapped, which leads to an uneven coating of glue; third, glue bonding has demerits such as low bonding strength and easy aging; moreover, due to the uneven coating at the overlapped portions, air leakage may be easily caused by an external force; fourth, the bonding process comprises at least three steps: step 1, coating the glue; step 2, bonding the multiple pieces of elastic material; and step 3, making the glue solidify; surely, in steps 1 and 2, according to the type of the glue, there may be a step of making the solvent volatilize; the complicated bonding process results in a long production cycle and a low production efficiency.

In the prior art, the technical solution adopted for solving the air leakage problem caused by an external force due to the uneven coating at the overlapped portions is to increase the glue's use amount and coating area. However, because of the excessive use amount, the out-flowing of glue is unavoidable, and the workshop environment further deteriorates.

SUMMARY

The purpose of the present disclosure is to provide an inflatable boat processing method, an inflatable boat, and processing devices thereof.

To achieve the above purpose, the present disclosure adopts the following technical solution:

An inflatable boat processing method, comprising the steps of:

Step 1: cutting material following an inflatable boat sample: cutting the material into a plurality of boat-side material pieces and a boat bottom material piece;

Step 2: connecting the boat-side material pieces: connecting the adjacent edges of the boat-side material pieces in an overlapped mode along the shape of a boat-side body, wherein the to-be-connected portions of two boat-side material pieces are hot-melted first, and then the hot-melted portions are overlapped and tightly pressed, thereby obtaining a boat-side body, wherein a first connecting end and a second connecting end are formed on the inner side edge and the outer side edge of the boat-side body in its width direction;

Step 3: connecting the boat-side body with the boat bottom: connecting the first connecting end of the boat-side body with the boat bottom material piece in an overlapped mode, tightly pressing, and then bonding by ultrasonic bonding;

Step 4: sealing the boat-side body: connecting the edge of the first connecting end and the edge of the second connecting end of the boat-side body in an overlapped mode, wherein the contact surfaces of the first connecting end and the second connecting end are hot-melted first, and then the hot-melted surfaces of the first connecting end and the second connecting end are overlapped and tightly pressed, thereby obtaining the boat-side body having a closed annular air-storage chamber;

Step 5: obtaining an inflatable boat.

In another preferred embodiment, step 2 further comprises a step of connecting the boat-side triangular sheet with the outer surface of the boat-side body.

In another preferred embodiment, the inflatable boat processing method further comprises a step of transversely arranging reinforcing layers on the boat bottom material piece before the boat-side body and the boat bottom material piece are connected.

In another preferred embodiment, the inflatable boat processing method further comprises a step of connecting the inflation-and-deflation mouth with the boat-side body, wherein a mouth reinforcing layer is overlapped and tightly pressed on the outer edge of the inflation-and-deflation mouth, and then the overlapped portions are bonded by using ultrasonic wave, wherein the mouth reinforcing layer is overlapped and tightly pressed on the edge of the position where the inflation-and-deflation mouth is about to be mounted on the boat-side body, and then the overlapped portions are bonded by using ultrasonic wave.

In another preferred embodiment, the inflatable boat processing method further comprises a step of arranging a reinforcing layer on the outer surface of the overlapped portion of adjacent boat-side material pieces after step 2, preferably between steps 2 and 3, a step of arranging a reinforcing layer on the outer surface of the overlapped portion of the first connecting end and the boat bottom material piece after step 3, preferably between steps 3 and 4, and a step of arranging a reinforcing layer on the outer surface of the overlapped portion of the first connecting end and the second connecting end after step 4.

In another preferred embodiment, the inflatable boat processing method further comprises a step of hot-melting, overlapping and then tightly pressing the outer surface of the overlapped portion and the contact surface of the reinforcing layer, thereby enabling them to be firmly connected.

In another preferred embodiment, the inflatable boat processing method further comprises a step of arranging a reinforcing strip between the inner side of the boat-side body and the boat bottom after step 3 or step 4, wherein the two sides of the reinforcing strip are respectively overlapped with the outer surface of the inner side of the boat-side body and the upper surface of the boat bottom, wherein the reinforcing strip surrounds the inner side of the boat-side body and is located near the boat bottom.

An inflatable boat, comprising a boat-side body, a boat bottom, and an inflation-and-deflation mouth, wherein at least one reinforcing layer is transversely provided at the boat bottom, and the two ends of the reinforcing layer extend towards the boat-side body, wherein a reinforcing strip is arranged at a position where the inner side of the boat-side body and the upper surface of the boat bottom are connected, wherein the two sides of the reinforcing strip are respectively fixedly connected with the boat-side body and the boat bottom.

In another preferred embodiment, a boat-side triangular sheet is fixedly arranged on the boat-side body, and the boat-side triangular sheet is provided with a hanging hook for hooking a rope.

In another preferred embodiment, the boat-side body comprises a closed annular chamber for storing air.

In another preferred embodiment, the closed annular air-storage chamber is divided into at least two independent air-storage chambers, and each air-storage chamber is provided with an inflation-and-deflation mouth.

In another preferred embodiment, both the boat-side body and the boat bottom are hexagonal. The boat-side body is formed by sequentially connecting a first boat-side material piece, a second boat-side material piece, a third boat-side material piece, a fourth boat-side material piece, a fifth boat-side material piece, and a sixth boat-side material piece.

A heating-and-pressing device for performing hot-melting and pressing, comprising a first roller, a second roller, a pressing driving device, a power assembly, and a hot-air assembly, wherein the hot-air assembly further comprises an air nozzle and a hot-air generating device, wherein the pressing driving device propels the first roller and the second roller to switch between a pressing station and a release station, wherein the power assembly propels the first roller and/or the second roller to rotate, wherein an air inlet of the air nozzle is communicated with an air outlet of the hot-air generating device through a pipeline, and an air outlet of the air nozzle faces the pressing station.

In another preferred embodiment, the heating-and-pressing device further comprises a reinforcing belt delivering mechanism, which is capable of clamping the reinforcing belt wound in a disc manner while introducing the reinforcing belt into between the first roller and the second roller following the motion of the power assembly.

An ultrasonic soldering device for performing pressing and ultrasonic bonding, comprising an ultrasonic generator, a transducer, an upper mold, a lower mold, and an upper mold pressing driving mechanism, wherein the transducer is fixedly arranged on the upper mold, wherein the upper mold is fixedly arranged on an output end of the upper mold pressing driving mechanism and is switched between an operating station and a rest station above the lower mold along the movement of the output end of the upper mold pressing driving mechanism.

The overlapped portions of the boat-side material pieces and the boat bottom material piece are hot-melted first, and then the hot-melted portions are tightly pressed, thereby enabling them to be integrally connected. The processing method of the present disclosure completely replaces the conventional glue bonding method, which is eco-friendly and achieves high connection strength.

The portions where the boat-side body and the boat bottom are connected are soldered by ultrasonic soldering, which makes the connection strength between the main force-bearing parts higher, thus ensuring the strength of the inflatable boat and enhancing the carrying ability.

Through the reinforcing layers and reinforcing strip arranged at the boat bottom and the connected portions of the boat-side body, the structure of the boat body becomes more stable. The closed annular air-storage chamber is divided into at least two independent air-storage chambers, and each air-storage chamber is provided with an inflation-and-deflation mouth. Through adopting the aforesaid design, even if gas leakage occurs in any air-storage chamber, the rest of the air-storage chambers ensure sufficient buoyancy such that the safety of the boat body is greatly improved.

DETAILED DESCRIPTION

Figures and detailed embodiments are combined hereinafter to clearly and completely describe the purpose, technical solution, and advantages of the present disclosure. Obviously, the described embodiments are merely a part but not all of the embodiments of the present disclosure. The specification of the present disclosure may allow those skilled in the art to obtain other embodiments without paying creative labor, and thus all of which shall fall into the scope of the present disclosure.

In the description of the present disclosure, it should be understood that the orientations or positions indicated by the terms “upper” and “lower” are based on the orientations or positions shown in the figures, or the orientations or positions that the product of the present disclosure is commonly placed during use, or the orientations or positions that are commonly understood by those skilled in the art. They are merely for the convenience of describing and simplifying the description of the present disclosure, but not indicating or implying that the equipment or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Thus, they cannot be understood as a limitation of the present disclosure.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as the indication or implication of relative importance or the implication of the number of indicated technical features.

In this embodiment, the inflatable boat processing method of the present disclosure is described by taking an inflatable boat having the following structure as an example. As shown inFIG.2, the inflatable boat mainly comprises a boat-side body1having a closed annular chamber for storing air and a boat bottom2. The boat-side body1further comprises a first boat-side material piece11, a second boat-side material piece12, a third boat-side material piece13, a fourth boat-side material piece14, a fifth boat-side material piece15, and a sixth boat-side material piece16. The boat bottom2, which is formed by a whole piece of hexagonal boat bottom material, comprises a first overlapped edge21, a second overlapped edge22, a third overlapped edge23, a fourth overlapped edge24, a fifth overlapped edge25, and a sixth overlapped edge26. In addition, a boat-side triangular sheet3is fixedly arranged on the boat-side body1, and the boat-side triangular sheet3is provided with a hanging hook for hooking a rope when the inflatable boat needs to be dragged or parked. Moreover, an inflation-and-deflation mouth4is arranged on the boat-side body1, which allows the closed annular air-storage chamber to be inflated for use or deflated for storage. During the assembly, the adjacent edges of the first boat-side material piece11, the second boat-side material piece12, the third boat-side material piece13, the fourth boat-side material piece14, the fifth boat-side material piece15, and the sixth boat-side material piece16are sequentially connected with each other and then connected with the boat bottom material piece. In this way, the body of an inflatable boat is formed. Surely, to improve the strength of the boat-side body and each overlapped portion, the outer surface of each overlapped portion is reinforced by a reinforcing layer5.

An inflatable boat processing method of the present disclosure, comprising the steps of:

Step 1: cutting material following an inflatable boat sample, wherein the material is cut following the sample into a plurality of boat-side material pieces and a boat bottom material piece, namely, the first boat-side material piece11, the second boat-side material piece12, the third boat-side material piece13, the fourth boat-side material piece14, the fifth boat-side material piece15, the sixth boat-side material piece16and the boat bottom material piece2; in this embodiment, preferably, the material is a yielding elastic material with hot-melt layers on both sides, such as rubber, PVC, PU and TPU.

Step 2: sequentially connecting the adjacent edges of the first boat-side material piece11, the second boat-side material piece12, the third boat-side material piece13, the fourth boat-side material piece14, the fifth boat-side material piece15and the sixth boat-side material piece16in an overlapped mode along the shape of the boat-side body1, wherein the to-be-connected portions of two boat-side material pieces are hot-melted first, and then the hot-melted portions are overlapped and tightly pressed, so that the adjacent edges are connected; for instance, after the hot-melt layers on the to-be-connected portions of the first boat-side material piece11and the second boat-side material piece12are melted, the portions are quickly overlapped and tightly pressed, thus ensuring that the overlapped portions of the first boat-side material piece11and the second boat-side material piece12are firmly integrated; it should be noted that, in this embodiment, the overlapping and pressing are preferably performed from one end of the contact surfaces of the first boat-side material piece11and the second boat-side material piece12, wherein the contact surfaces are pressed while being heated; namely, the contact surfaces are pressed from one end to the other until they are completely overlapped and bonded; definitely, the contact surfaces of the first boat-side material piece11and the second boat-side material piece12may also be integrally hot-melted, overlapped and pressed, thereby completing the connection of the adjacent edges.

According to the aforesaid, the adjacent edges of the first boat-side material piece11, the second boat-side material piece12, the third boat-side material piece13, the fourth boat-side material piece14, the fifth boat-side material piece15and the sixth boat-side material piece16are connected in an overlapped mode such that a boat-side body is formed; at this point, the boat-side body is not connected with the boat bottom material piece, and a first connecting end17and a second connecting end18are formed on the inner side edge and the outer side edge of the boat-side body in its width direction.

Step 3: connecting the first connecting end17of the boat-side body and the boat bottom material piece2in an overlapped mode, pressing tightly, and then bonding the overlapped portions by ultrasonic bonding; as shown inFIG.9, in this embodiment, preferably, the boat-side body is sleeved in a lower mold230, the first connecting end17is placed on the upper end surface of the lower mold230, and then the boat bottom material piece2is paved on the first connecting end17of the boat-side body; subsequently, the edge of the boat bottom material piece2and the first connecting end17are overlapped; after the width of the overlapped portions is adjusted, by means of the ultrasonic bonding, as well as the mutual pressing of the upper mold and the lower mold, the first connecting end17of the boat-side body is connected with the boat bottom material piece.

Step 4: connecting the edge of the first connecting end17and the edge of the second connecting end18of the boat-side body in an overlapped mode, wherein the contact edge surfaces of the first connecting end17and the second connecting end18are hot-melted first, and then the hot-melted surfaces of the first connecting end17and the second connecting end18are overlapped and tightly pressed, thereby obtaining the boat-side body1having a closed annular air-storage chamber.

Step 5: obtaining an inflatable boat.

Preferably, step 2 further comprises a step of connecting the boat-side triangular sheet3with the outer surface of the boat-side body. In this embodiment, it is desirable that at least a surface of the boat-side triangular sheet3in contact with the boat-side body is provided with a hot-melt layer, wherein the contact surfaces of the boat-side triangular sheet3and the boat-side body are hot-melted first, and then the contact surfaces are overlapped and tightly pressed, thereby completing the assembly of the boat-side triangular sheet3.

Further, as the bottom of the inflatable boat is a portion carrying loads, the strength of the boat bottom is crucial. To reinforce the boat bottom, in this embodiment, a reinforcing layer5is transversely arranged on the boat bottom material piece before the boat-side body and the boat bottom material piece are connected, wherein the reinforcing layer and the corresponding contact surface of the boat bottom material piece are hot-melted first, and then the reinforcing layer is tightly pressed on the contact surface of the boat bottom material piece, thereby completing the reinforcement. Preferably, there are three reinforcing layers, which are respectively located near the head portion, the tail portion, and the middle portion of the boat bottom material piece.

Further, the inflatable boat processing method further comprises a step of connecting the inflation-and-deflation mouth4with the boat-side body. More specifically, the outer edge of the inflation-and-deflation mouth4is connected with a mouth reinforcing layer41in an overlapped mode. The mouth reinforcing layer41is tightly pressed on the outer edge of the inflation-and-deflation mouth4, and then the overlapped portions are bonded by using ultrasonic wave. Subsequently, the mouth reinforcing layer41is overlapped and pressed on the edge of the position where the inflation-and-deflation mouth4is about to be mounted on the boat-side body, and then the overlapped portions are bonded by using ultrasonic wave. Thus, the inflation-and-deflation mouth4is connected with the boat-side body1.

In this embodiment, considering the structural reinforcement of the inflatable boat and the reliability of the overlapped portions, preferably, the inflatable boat processing method of the present disclosure further comprises a step of arranging a reinforcing layer on the outer surface of the overlapped portion of adjacent boat-side material pieces between steps 2 and 3, a step of arranging a reinforcing layer on the outer surface of the overlapped portion of the first connecting end and the boat bottom material piece2between steps 3 and 4, and a step of arranging a reinforcing layer on the outer surface of the overlapped portion of the first connecting end17and the second connecting end18after step 4. Preferably, the outer surface of the overlapped portion and the contact surface of the reinforcing layer are hot-melted and then pressed tightly such that the aforesaid two are firmly integrated.

The bottom of the inflatable boat carries loads of cargo and passengers. The buoyancy generated by the boat-side body is used for balancing the loads borne by the bottom of the inflated boat. In other words, the strength and reliability of the inflatable boat are guaranteed only when the bonding force between the boat-side body and the boat bottom is strong enough. In this embodiment, the positions where the boat-side body is connected with the boat bottom are processed by ultrasonic bonding. Through adopting the ultrasonic bonding, the melting degree and depth of the hot-melt layers are much higher, which makes the connection between the boat-side body and the boat bottom more stable. The strength of ultrasonic bonding is much higher than that of glue bonding. Additionally, other overlapped portions are hot-melted and tightly pressed, the strength of which is slightly lower than that of ultrasonic bonding but much greater than that of glue bonding. Moreover, the arrangement of the reinforcing layers further improves the strength of the overlapped portions and the inflatable boat.

As the bottom of the inflatable boat is made of an elastic material, the boat bottom deforms when it bears loads. Under such circumstances, an acting force which may tear the portions where the boat bottom and the boat-side body are connected apart may be easily produced (as shown inFIG.11, the acting force F2is a vertical component force produced at the boat bottom after loading). If the component force F2is large enough, the portions where the boat bottom and the boat-side body are connected may be torn apart, resulting the damage of the inflatable boat.

The difference between embodiment 2 and embodiment 1 is: the inflatable boat processing method of embodiment 2 further comprises a step of arranging a reinforcing strip between the inner side of the boat-side body and the boat bottom after step 3 or step 4. The two sides of the reinforcing strip are respectively overlapped with the outer surface of the inner side of the boat-side body and the upper surface of the boat bottom. The reinforcing strip7surrounds the inner side of the boat-side body and is located near the boat bottom. More specifically, the contact surfaces of the reinforcing strip7and the boat-side body are heated simultaneously, and after the hot-melt layers on the contact surfaces of the reinforcing strip7and the boat-side body are melted, the contact surfaces are quickly overlapped, and sufficient pressure is imposed thereon, thereby enabling one side of the reinforcing strip7to be connected with the boat-side body. Subsequently, the contact surfaces of the reinforcing strip7and the boat bottom are heated simultaneously, and after the hot-melt layers on the contact surfaces of the reinforcing strip7and the boat bottom are melted, the contact surfaces are quickly overlapped, and sufficient pressure is imposed thereon, thereby enabling the other side of the reinforcing strip7to be connected with the boat bottom. In this embodiment, through arranging a reinforcing strip7between the boat bottom and the inner side of the boat-side body, the component force F2is significantly weakened such that the inflatable boat is protected against the damage.

An inflatable boat of the present disclosure comprises a boat-side body1, a boat bottom2, and an inflation-and-deflation mouth4, wherein at least one reinforcing layer is transversely provided at the boat bottom, and the two ends of the reinforcing layer5extend towards the boat-side body. A reinforcing strip7is arranged at a position where the inner side of the boat-side body1and the upper surface of the boat bottom are connected. The two sides of the reinforcing strip7are respectively fixedly connected with the boat-side body1and the boat bottom2. By means of the reinforcing layer and the reinforcing strip arranged at the boat bottom and the position where the boat bottom and the boat-side body are connected, a stable structure of the boat body is achieved. A boat-side triangular sheet3is fixedly arranged on the boat-side body1, and the boat-side triangular sheet3is provided with a hanging hook for hooking a rope. The boat-side body1comprises a closed annular chamber for storing air. Preferably, the closed annular air-storage chamber is divided into at least two independent air-storage chambers, and each air-storage chamber is provided with an inflation-and-deflation mouth. Through adopting the aforesaid design, even if gas leakage occurs in any air-storage chamber, the rest of the air-storage chambers ensure sufficient buoyancy of the boat body such that the safety of the boat body is greatly improved. Both the boat-side body and the boat bottom are hexagonal. The boat-side body is formed by sequentially connecting a first boat-side material piece, a second boat-side material piece, a third boat-side material piece, a fourth boat-side material piece, a fifth boat-side material piece, and a sixth boat-side material piece.

To achieve the hot-melting and pressing of the overlapped portions in the inflatable boat processing method of embodiment 1 and embodiment 2, a heating-and-pressing device for performing the hot-melting and pressing in the inflatable boat processing method is adopted in the present disclosure.

As shown inFIGS.6-7, the heating-and-pressing device100comprises a first roller111, a second roller112, a pressing driving device130, a power assembly120, and a hot-air assembly140. The hot-air assembly further comprises an air nozzle141and a hot-air generating device142. The pressing driving device130propels the first roller111and the second roller112to switch between a pressing station and a release station. The power assembly120propels the first roller111and/or the second roller112to rotate. An air inlet of the air nozzle141is communicated with an air outlet of the hot-air generating device142through a pipeline, and an air outlet of the air nozzle141faces the pressing station, thereby allowing the hot air to be directly closely blown to the workpiece to be heated. In this embodiment, preferably, the temperature of the air output from air nozzle is 350-400° C.

More specifically, in this embodiment, the first roller111and the second roller112are rubber rollers or nylon rollers, and the pressing driving device130is preferably a cylinder. The first roller111is movably mounted on an upper support114, the second roller112is movably mounted on a lower support113, and the upper support114is fixedly arranged on an output shaft131of the pressing driving device130. The power assembly120comprises a driving motor121with a reduction gearbox, a driving belt wheel122, a synchronous belt123, and a driven belt wheel124. The driving belt wheel122is fixedly arranged on an output shaft of the driving motor121, and the driven belt wheel124is fixedly arranged on a transmission shaft fixedly connected with the first roller111. In this way, after being decelerated by the reduction gearbox, the rotation of the driving motor121is transmitted to the first roller111through the driving belt wheel122, the synchronous belt123, and the driven belt wheel124, thereby achieving the rotation of the first roller111.

Further, preferably, the hot-air assembly140further comprises a hot-air assembly translation mechanism150, and the air nozzle141is fixedly arranged at an output end of the hot-air assembly translation mechanism150. Through the translation of the output end of the hot-air assembly translation mechanism150, the air nozzle141may be switched between a working station and an avoiding station. When the air nozzle stays at the working station, the hot-air generating device142starts sucking air, and the air sucked into the hot-air generating device142is heated and then blown out from the outlet of the air nozzle141through the pipeline. The hot air blown to the surface of the workpiece to be heated makes the material on the surface of the workpiece melt. When the air nozzle stays at the avoiding station, the air nozzle is located to the side of the first roller and the second roller, and the hot-air assembly does not work, thus leaving a larger working area for allowing the workpiece to be smoothly processed.

The operating principle of the heating-and-pressing device is described by taking the connection process of the first boat-side material piece11, and the second boat-side material piece12as an example. The to-be-connected first boat-side material piece11and second boat-side material piece12are placed on the surface of the second roller112. After the width of the overlapped portions of the first boat-side material piece11and the second boat-side material piece12is adjusted, the output end131of the pressing driving device130propels the upper support114to move down, thereby enabling the first roller111and the second roller112to tightly press the overlapped portions of the first boat-side material piece11and the second boat-side material piece12. The overlapped portions of first boat-side material piece11and second boat-side material piece12near the air nozzle141are respectively opened in the upper and lower directions to form a horn-shaped opening. At this point, the air nozzle141aims at the bottom of the horn-shaped opening. While the air nozzle141blows hot air, the power assembly propels the first roller111to rotate, thus propelling the first boat-side material piece11and the second boat-side material piece12to continuously enter between the first roller and the second roller. In this way, the portions of first boat-side material piece11and the second boat-side material piece12entering between the first roller and the second roller are pressed and integrated while the hot-melt layers on the contact surfaces of the first boat-side material piece11and the second boat-side material piece12are melted by the hot air. The air nozzle aiming at the bottom of the horn-shaped opening enables the first boat-side material piece11and the second boat-side material piece12to be evenly heated, and allows more heat to be concentrated near the overlapped portions. Thus, the hot-melt layers of the first boat-side material piece11and the second boat-side material piece12are sufficiently heated and melted such that high connection strength is achieved.

It should be noted that, the width of the air nozzle should match the width of the overlapped portions of the first boat-side material piece11and the second boat-side material piece12, at least not less than the width of the first roller and the second roller, so that a sufficient heating area is ensured. The hot-air generating device is internally provided with an electric heating apparatus and a fan assembly, and the pipeline communicating with the air nozzle is made of a heat-resistant material. Moreover, to protect an operator from being scalded while reducing the heat loss of the pipeline, an insulating material, such as glass wool, is wrapped outside the pipeline and the air nozzle.

When a reinforcing belt is required for reinforcement (for ease of description, the reinforcing layer and the reinforcing strip are collectively called a reinforcing belt), the reinforcing belt needs to be delivered synchronously. The reinforcing belt and the overlapped portion may be connected by using a method same as connecting the first boat-side material piece11and the second boat-side material piece12. To facilitate the synchronous delivery of the reinforcing belt, comparing with embodiment 3, the processing device of the present disclosure further comprises a reinforcing belt delivering mechanism160, which is capable of clamping the reinforcing belt wound in a disc manner while introducing the reinforcing belt164into between the first roller111and the second roller112following the motion of the power assembly120.

As shown inFIG.8, the reinforcing belt delivering mechanism160comprises a delivering tray161, a supporting frame162, a pair of guiding rollers163, and a tray shaft165. The tray shaft165is fixedly arranged on the supporting frame162, and the delivering tray161is movably mounted on the tray shaft165. The reinforcing belt164is delivered from the delivering tray161and then passes through between the two guiding rollers. To enable the overlapped portion to be precisely reinforced by the reinforcing belt, in this embodiment, the delivering tray161is preferably located right above the first roller111, and the edge of the delivering tray is flush with the first roller.

Its operating principle is the following: after the reinforcing belt164is introduced into between the first roller and the second roller, and the overlapped portion of the material pieces is adjusted to the middle position between the first roller and the second roller, the relative positions of the reinforcing belt164and the overlapped portion are adjusted, thus allowing the reinforcing belt164to be located right above the overlapped portion. Subsequently, by means of the heating of the hot air blown out from the air nozzle and the mutual pressing of the first roller and the second roller, the reinforcing belt and the overlapped portion are firmly integrated. As the aforesaid principle is the same as that for connecting the first boat-side material piece11and the second boat-side material piece12in embodiment 3, it is briefly described herein.

The first connecting end17of the boat-side body and the boat bottom material piece2are connected using ultrasonic bonding. However, both the boat-side body and the boat bottom material piece have a certain shape, which makes the bonding process of ordinary ultrasonic equipment complicated. In addition, due to the large bonding area of the first connecting end17of the boat-side body and the boat bottom material piece2, conventional ultrasonic equipment requires a multi-point and multi-time bonding process, resulting in low bonding efficiency and poor sealing performance.

Based on the aforesaid, an ultrasonic soldering device is adopted for performing the ultrasonic bonding in the inflatable boat processing method.

As shown inFIGS.9-10, the ultrasonic soldering device200comprises an ultrasonic generator (not shown), a transducer240, an upper mold220, a lower mold230, and an upper mold pressing driving mechanism210. The transducer240is fixedly arranged on the upper mold220. The upper mold220is fixedly arranged on an output end211of the upper mold pressing driving mechanism210and is switched between an operating station and a rest station above the lower mold230along the movement of the output end211of the upper mold pressing driving mechanism210.

More specifically, the upper mold220comprises an upper holder221and a soldering head222, wherein a fixed end of the transducer240is fixedly arranged on the upper holder221, and a working end of the transducer240is fixedly arranged on the upper end surface231of the soldering head222. In this way, when the upper mold pressing driving mechanism210propels the upper mold to move down to the operating station, the overlapped portions to be soldered are tightly pressed. At this point, the ultrasonic generator drives the transducer to operate such that the energy is transferred to the soldering head222, which further transfers the received vibrational energy to the overlapped portions of the workpiece to be soldered. In this area, the vibrational energy is converted into heat energy by means of friction, which makes the overlapped portions of the workpiece to be soldered melt. In the meantime, the upper mold pressing driving mechanism210propels the soldering head to press down, thus tightly pressing the overlapped portions. In this way, the ultrasonic bonding effect is significantly improved. The pressure enables the overlapped portions of the workpiece to be firmly integrated. After the melting area of the overlapped portion is cooled to a preset temperature, the upper mold pressing driving mechanism210propels the upper mold to move up to the rest station, thereby completing the soldering process.

Specifically, its operating principle is: the lower mold230is designed according to the shape of the boat-side body, and the boat-side body is sleeved in the lower mold, which enables the first connecting end17of the boat-side body to be sufficiently unfolded such that creases are avoided. The first connecting end17is adjusted to be located on the upper end surface231of the lower mold, the boat bottom material piece2is placed above the first connecting end17, and the upper mold pressing driving mechanism210propels the upper mold220to move down to the operating station. At this point, the first connecting end17and the boat bottom material piece are pressed between the soldering head222and the upper end surface231of the lower mold230. Then, the ultrasonic generator drives the transducer to operate, thereby transferring the energy to the solder head222. The vibrational energy received by the soldering head is further transferred to the overlapped portions of the first connecting end17and the boat bottom surface material. In this area, the vibrational energy is converted into heat energy by means of friction such that the overlapped portions of the first connecting end17and the boat bottom material piece are bonded tightly.

It should be noted that, the ultrasonic generator adopted in this embodiment is also called an ultrasonic driving power supply, an electronic box, or an ultrasonic controller, which is an important component of a high-power ultrasonic system. The ultrasonic generator is used for converting the city power into high-frequency AC signals matched with an ultrasonic transducer and for driving the ultrasonic transducer to operate, which belongs to the existing technology. The transducer in this embodiment is a device used for the interconversion between electric energy and acoustic energy, which also belongs to the existing technology. Additionally, the number of transducers arranged along the soldering head may be determined by specific design, and the output power of the transducer and the ultrasonic generator may be selected according to actual needs. It should be noted that the ultrasonic generator can be replaced with a high-frequency generator of the existing technology to form a high-frequency soldering device for soldering/bonding.

It should be noted that, in all embodiments, the portions bonded by using ultrasonic waves may also be bonded by using high-frequency waves.

The above are merely preferred embodiments of the present disclosure, and the scope of the present disclosure is not limited to the embodiments described above. All equivalent changes made according to the structure, shape, and principle of the present disclosure shall fall into the scope of the present disclosure.