Film pasting equipment between battery strings

Abstract

The utility model provides a film pasting device between battery strings, and relates to the technical field of photovoltaic module film pasting devices. The battery string inter-string film pasting equipment comprises a conveying and positioning mechanism, a film supplying mechanism, a film manufacturing mechanism and a film releasing mechanism, and the conveying and positioning mechanism is used for moving a glass plate to a film pasting position, correcting the glass plate and moving the glass plate out of the film pasting position; the film supply mechanism is adjacent to the transmission positioning mechanism and is used for supplying film strips; the film manufacturing mechanism is adjacent to the film supply mechanism and is used for pulling the film strips to the position above the conveying and positioning mechanism and manufacturing inter-string film strips; and the film releasing mechanism is arranged above the film making mechanism and is used for moving the inter-string film strip to the film pasting position and melting and pasting the inter-string film strip to a target position. The automatic film pasting device is simple in structure, convenient in process optimization, high in compatibility and capable of automatically completing film pasting work in the BC assembly preparation process, blank leaving is avoided, the appearance attractiveness of the BC photovoltaic assembly is improved, and the attractive effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic component film pasting equipment, in particular to a film pasting equipment between battery strings. Background Art

[0002] BC batteries, or back contact batteries, are formed by welding, laminating, and packaging back contact cells to form a back contact battery assembly. The back contact battery assembly includes spaced battery strings and a central busbar for connecting the battery strings in parallel. Because the central busbar is located in the spacing area between the battery strings, the spacing area cannot provide good support for the central busbar, making it easy for the battery cells to be crushed during lamination, resulting in hidden cracks and string spacing deviations. The central busbar can also be seen from the front of the battery assembly, leaving a blank space in the middle of the battery assembly, affecting its appearance. Applying a film in the spacing area can solve this problem.

[0003] However, the existing technology lacks equipment for automatic film application during the preparation of BC components. Utility Model Content

[0004] The utility model provides a battery string inter-string film pasting device which can directly or indirectly paste double-sided films in the interval area between battery strings during the BC component preparation process.

[0005] The technical solution adopted by the present invention is: a battery string inter-string film laminating device includes: a transmission and positioning mechanism, a film supply mechanism, a film making mechanism, and a film placing mechanism, wherein the transmission and positioning mechanism is used to move the glass plate to the film laminating position, correct it, and move it out of the film laminating position; the film supply mechanism is arranged adjacent to the transmission and positioning mechanism and is used to supply film strips;

[0006] The film making mechanism is arranged adjacent to the film supply mechanism, and is used to pull the film strip to the top of the transmission positioning mechanism and prepare the inter-string film strip; the film unloading mechanism is arranged above the film making mechanism, and is used to move the inter-string film strip to the target position and melt it onto the target part.

[0007] Preferably, the film supply mechanism, the film making mechanism, and the film placing mechanism are each provided with two groups, which are respectively provided at the feeding end and the discharging end of the transmission and positioning mechanism.

[0008] Preferably, the transmission positioning mechanism includes a first positioning component and a second positioning component, the positioning direction of the first positioning component is parallel to the conveying direction of the transmission positioning mechanism, and the positioning direction of the second positioning component is perpendicular to the positioning direction of the first positioning component.

[0009] Preferably, the film supply mechanism includes a film supply drive, a wheel mechanism, and a weight mechanism. The film roll is installed at the output end of the film supply drive, and the film strip provided by the film roll passes through the wheel mechanism and the weight mechanism in sequence.

[0010] Preferably, the film making mechanism includes a film pulling mechanism, a film laying platform, a film cutting mechanism, a pressing mechanism, and a clamping mechanism. The film pulling mechanism is used to pull the film strips extending from the film supply mechanism to the film laying platform. The pressing mechanism and the clamping mechanism are respectively arranged on both sides of the film cutting mechanism. The film cutting mechanism is used to cut the film strips into the film strips.

[0011] Furthermore, the film laying platform includes a film laying base and two limiting bars, and the two limiting bars are fixed on the film laying base to form limiting grooves on the film laying base.

[0012] Preferably, the film-laying mechanism includes a transfer and melting mechanism, and a longitudinal drive component and a transverse drive component are installed on the transfer and melting mechanism. The longitudinal drive component is used to drive the transfer and melting mechanism to perform a longitudinal translation action so that the transfer and melting mechanism performs the film-taking / film-laying and film-sticking action. The transverse drive component is used to drive the transfer and melting mechanism to perform a transverse translation action so that the transfer and melting mechanism can reciprocate between the film-taking position and the film-laying position.

[0013] Furthermore, the transfer and melting mechanism includes a bracket, a plurality of suction cup assemblies, and a spacing drive. The suction cup assembly is installed on the bracket, and the spacing drive is used to drive the suction cup assembly to move and spacing to corresponding preset positions.

[0014] Furthermore, the suction cup assembly includes a support frame, a fixed suction cup group, and an adjustable suction cup group. The fixed suction cup group and the adjustable suction cup group are installed on the support frame, and the adjustable suction cup group can move along the extension direction of the support frame.

[0015] Furthermore, the transfer and melting mechanism includes a hot air pipe and a telescopic part, and a pressure part is fixed to the output end of the telescopic part. The hot air pipe is used to blow hot air to the film strip at the target position so that the film strip is melted at the target position, and the pressure part is used to press against the film strip before the hot air pipe works.

[0016] The utility model adopts the above technical solution to achieve the following beneficial effects:

[0017] The inter-string film pasting equipment provided by the present invention can automatically complete the film pasting work in the process of preparing BC components. The inter-string film group is directly laid on the laid-out battery string group, and there is no need to set up an additional string lifting hand to lift the battery string group and paste the film on the glass. It can fix the position between the battery strings and avoid the phenomenon of battery string spacing offset; or the inter-string film group can be laid in the preset interval area before the battery string group is laid out. It has a simple structure, is easy to optimize the process, has strong compatibility, avoids blank space, and can enhance the appearance of the BC photovoltaic component to achieve an aesthetic effect.

[0018] Other beneficial effects are described in the specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the battery string film laminating device of the utility model;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the transmission and positioning mechanism in the present utility model;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the film supply mechanism in the present utility model;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the film-making mechanism in the present utility model;

[0023] Figure 5 for Figure 4 Enlarged view of part a in the middle;

[0024] Figure 6 for Figure 4 Enlarged view of part b in the middle;

[0025] Figure 7 This is a schematic diagram of the three-dimensional structure of the film-releasing mechanism in the present invention;

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the transfer and melting mechanism in the present invention;

[0027] Figure 9 This is a partial structural front view of the mobile suction cup assembly in the utility model;

[0028] Figure 10 for Figure 9 Enlarged view of part c in the middle.

[0029] In the figure,

[0030] 100, transmission positioning mechanism; 110, first positioning component; 120, second positioning component;

[0031] 200, film supply mechanism; 210, film supply drive; 220, roller mechanism; 221, first guide roller; 222, second guide roller; 223, third guide roller; 224, fourth guide roller; 225, baffle; 230, weight mechanism; 240, film roll;

[0032] 300, film making mechanism; 310, film pulling mechanism; 311, clamp; 320, film laying platform; 321, film laying base; 322, limit strip; 323, limit groove; 330, film cutting mechanism; 340, pressing mechanism; 350, clamping mechanism;

[0033] 400, film-releasing mechanism; 410, longitudinal drive assembly; 420, transverse drive assembly; 430, transfer and melting mechanism; 431, bracket; 432, fixed suction cup assembly; 433, movable suction cup assembly; 4331, support frame; 4332, fixed suction cup group; 4333, adjustment suction cup group; 4334, slider; 434, spacing drive; 435, hot air assembly; 4351, hot air pipe; 4352, telescopic member; 4353, pressure member. DETAILED DESCRIPTION

[0034] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0035] It should be noted that when an element is referred to as being “disposed on” or “positioned on” another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be “connected to” another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0037] In the present invention, unless otherwise clearly stipulated and limited, the first feature being "below", "beneath" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the horizontal height of the first feature is smaller than that of the second feature.

[0038] In addition, in the present invention, unless otherwise clearly specified and limited, "front", "forward", "forward" and the like refer to the direction in which the glass plates are fed, and "rear", "left" and "right" are directions relative to the direction in which the glass plates are fed.

[0039] The utility model provides a battery string inter-string film laminating device, which can automatically complete the work of directly or indirectly laminating double-sided film in the interval area between battery strings during the BC component preparation process. Figure 1 As shown, the inter-string film laminating equipment includes a transmission and positioning mechanism 100, a film supply mechanism 200, a film making mechanism 300, and a film placing mechanism 400, wherein the transmission and positioning mechanism 100 is used to move the glass plate to the film laminating position and straighten the glass plate to achieve the purpose of accurate film laminating. After the film laminating is completed, the glass plate is moved out of the film laminating position. The film laminating position here refers to the position where the glass plate with the battery string group / the glass plate with the pre-layout battery string group stops during film laminating; the film supply mechanism 200 is arranged on both sides of the conveying direction of the transmission and positioning mechanism 100 for supplying film strips; the film making mechanism 300 is arranged opposite to the film supply mechanism 200, and the film making mechanism 300 is used to pull the film strips provided by the film supply mechanism 200 to the top of the transmission and positioning mechanism 100 to prepare an inter-string film strip group; the film placing mechanism 400 is arranged above the film making mechanism 300 for moving the inter-string film strip group to the target position and melting it onto the target part. The target position here changes based on the choice of film laminating process. When film is applied to a glass plate with a layout of battery strings, the target position is the spacing area between each battery string; when film is applied to a glass plate with a pre-layout of battery strings, the target position is the spacing area between each pre-layout battery string. Compared with the prior art, the battery string inter-string film laminating equipment provided by the utility model can automatically complete the film laminating work in the BC module preparation process, directly laying the inter-string adhesive film group on the laid-out battery string group, without the need for additional string lifting hands to lift the battery string group and laminating the film on the glass, and can fix the position between the battery strings and avoid the phenomenon of battery string spacing offset; or laying the inter-string adhesive film group in the preset spacing area before the battery string group is laid out. Its structure is simple, easy to optimize the process, highly compatible, avoids leaving blank space, and can enhance the appearance of the BC photovoltaic module to achieve an aesthetic effect.

[0040] In the embodiment of the present utility model, Figure 1 As shown, the film supply mechanism 200, film forming mechanism 300, and film unwinding mechanism 400 are each provided in two groups, one at the feed end and the other at the discharge end of the transmission and positioning mechanism 100. By providing two groups of film supply mechanisms 200, film forming mechanisms 300, and film unwinding mechanisms 400, it is possible to simultaneously provide film strips between the feed and discharge ends. Compared to the unidirectional film delivery of the film unwinding mechanism 400, the film delivery stroke of the film unwinding mechanism 400 can be reduced, reducing cumulative errors, thereby improving the positional accuracy of film delivery and unwinding, and can also improve the efficiency of film delivery and unwinding, thereby increasing the process cycle.

[0041] In the embodiment of the present utility model, Figure 2 As shown, the transmission and positioning mechanism 100 includes a conveyor platform, a first positioning assembly 110, and a second positioning assembly 120. The first positioning assembly 110 and the second positioning assembly 120 are mounted on the conveyor platform. The positioning direction of the first positioning assembly 110 is parallel to the conveying direction of the transmission and positioning mechanism 100, and the first positioning assembly 110 can correct the left and right position of the glass sheet. The positioning direction of the second positioning assembly 120 is perpendicular to the positioning direction of the first positioning assembly 110, that is, the second positioning assembly 120 can correct the front and back position of the glass sheet. Through the cooperation of the first positioning assembly 110 and the second positioning assembly 120, the glass sheet can be corrected and positioned, ensuring that the glass sheet is in the set film application position before each film application, thereby ensuring the accuracy of subsequent film application.

[0042] Of course, in specific implementation, four second positioning components 120 can be set front and back in the second positioning direction, and two first positioning components 110 can be set left and right in the first positioning direction. The glass plate can be corrected and positioned by six positioning parts to ensure the positioning accuracy of the glass plate.

[0043] In the embodiment of the present utility model, Figure 3 As shown, the film supply mechanism 200 includes a film supply drive 210, a wheel mechanism 220, and a weight mechanism 230. A film roll 240 is mounted at the output end of the film supply drive 210. When a film strip is supplied to the film forming mechanism 300, the film supply drive 210 drives the film roll 240 to rotate, releasing the film strip, which then passes through the wheel mechanism 220 and the weight mechanism 230 in sequence. The combined action of the wheel mechanism 220, the weight mechanism 230, and the film supply drive 210 ensures that the film strip is always in a tensioned state when the film supply mechanism 200 is performing the film supply operation, preventing the film strips from becoming entangled with each other after being relaxed during the film supply process, and ensuring that the film supply mechanism 200 can continuously and effectively supply film.

[0044] In actual use, there are at least two options for the film roll 240. One is a film roll 240 with a single film strip width. The film roll 240 can output the film strip more stably, but the total length of the film strip it can provide is relatively low. The diameter of the film roll 240 is often very large, which will take up a lot of space and easily cause interference. In addition, the film strip needs to be frequently replenished during use, which is cumbersome to operate and affects processing efficiency. The other is a film roll 240 with a larger width. The film roll 240 can reduce the diameter of the film roll 240 while ensuring the provision of film strips of sufficient length, thereby reducing the space occupied by the film roll 240. However, the stability of the film strip output direction is poor.

[0045] When the second film roll 240 is used, the wheel mechanism 220 includes multiple guide rollers, each of which is dispersed around the film roll 240. Baffles 225 are provided at both ends of the guide rollers. The spacing between the baffles 225 decreases in the order in which the film strip is wound.

[0046] like Figure 3 As shown, the above-mentioned roller mechanism 220 includes a first guide roller 221, a second guide roller 222, a third guide roller 223, and a fourth guide roller 224. Baffles 225 are provided on both sides of the first guide roller 221, the second guide roller 222, the third guide roller 223, and the fourth guide roller 224. The baffles 225 can effectively constrain the film strip on the corresponding guide rollers to prevent the film strip from falling off the corresponding guide rollers. After being released from the film roll 240, the film strip passes through the first guide roller 221, the second guide roller 222, the third guide roller 223, and the fourth guide roller 224 in sequence. The spacing between the baffles 225 on the first guide roller 221, the second guide roller 222, the third guide roller 223, and the fourth guide roller 224 decreases successively. Through multi-stage guidance, the direction of the film strip is adjusted to ensure that the film strip reaches the weight mechanism 230 in a stable output state.

[0047] In the embodiment of the present utility model, Figure 4-Figure 6 As shown, the film making mechanism 300 includes a film pulling mechanism 310, a film laying platform 320, a film cutting mechanism 330, a pressing mechanism 340, and a clamping mechanism 350. The film making mechanism 300 can prepare a group of string film strips that meet the needs, wherein the film pulling mechanism 310 is used to pull the film strips extending from the film supply mechanism 200 onto the film laying platform 320. Here, the film pulling mechanism 310 includes two position actions, one is to pull the film strip to the cutting position, and the other is to pull the film strip to the film waiting position. The pressing mechanism 340 and the clamping mechanism 350 are respectively arranged on both sides of the film cutting mechanism 330, and the film cutting mechanism 330 is used to cut the film strips into string film strips.

[0048] When the film strip group of the previous string is transferred, the film laying platform 320 is in a state of waiting for material preparation. During the preparation, the film pulling mechanism 310 moves toward the film strip and clamps the end of the film strip through the clamp 311. At this time, the pressing mechanism 340 works to cancel the restriction on the film strip, and the clamp 311 carries the film strip to the preset position. The pressing mechanism 340 is started to fix the film strip at the film supply end, and the film cutting mechanism 330 cuts the film strip at the cutting position, thus obtaining the film strip of the required size. Then the film pulling mechanism 310 moves the film strip to the waiting state. When the film is taken, the clamping mechanism 350 is activated to fix the film strip on the film position to be taken, and the clamp 311 releases the film strip to prevent the position of the film strip from changing when the clamp 311 releases the film strip. In this way, the inter-string film strip that meets the preset length requirements is obtained, and the gap position between the film strip and the battery string is parallel and corresponding, that is, through the cooperation of the film pulling mechanism 310, the film laying platform 320, the film cutting mechanism 330, the pressing mechanism 340 and the clamping mechanism 350, the left and right position of the film strip before transfer is limited, thereby ensuring the accuracy of the film strip position after transfer.

[0049] Further, such as Figure 5 As shown, the film laying platform 320 includes a film laying base 321 and two limiting bars 322. The two limiting bars 322 are fixed to the film laying base 321 to form a limiting groove 323 on the film laying base 321. The limiting groove 323, which is formed by the film laying base 321 and the two limiting bars 322 for the film strip to pass through, plays a positioning role for the film strip, that is, it limits the front and rear position of the film strip before transfer, ensuring the accuracy of the film strip position after transfer. Of course, when the clamps 311 on the film pulling mechanism 310 are set, it is preferred to constrain the application within the limiting groove 323, which can effectively reduce the length of the suspended section of the film strip when clamped by the clamps 311, and can improve the length and dimensional accuracy of the film strip.

[0050] It should be noted that the present invention can set up film supply mechanisms 200 on both the left and right sides of the feed end and the discharge end. At this time, clamps 311 are provided on both the left and right sides of the film pulling mechanism 310. The film supply mechanism 200 can realize film supply from both ends of the film laying platform 320, thereby reducing the replacement frequency of the film roll 240 and improving the film supply efficiency.

[0051] In addition, if Figure 7-Figure 9As shown, the film placing mechanism 400 includes a transfer melting and pasting mechanism 430, on which a longitudinal drive component 410 and a transverse drive component 420 are installed. The longitudinal drive component 410 is used to drive the transfer melting and pasting mechanism 430 to perform a longitudinal translation action so that the transfer melting and pasting mechanism 430 performs the mold taking / film placing and pasting action. The transverse drive component 420 is used to drive the transfer melting and pasting mechanism 430 to perform a transverse translation action so that the transfer melting and pasting mechanism 430 can reciprocate between the film taking position and the film placing position. In this way, when performing the film pasting action, the longitudinal drive component 410 is started, the transfer and melting mechanism 430 moves downward, sucks the film strips between the strings in the limiting groove 323 and then lifts it up, the transverse drive component 420 is started, and the transfer and melting mechanism 430 is moved from directly above the film making structure to directly above the target position, the longitudinal drive component 410 is started again, the transfer and melting mechanism 430 moves downward, and each film strip is placed at the target position, and the film strip is hot-melted and pasted to the target part by the hot air component 435. When the target part is a glass plate with a battery string group, the position of each battery string can be guaranteed not to change after the film strip is pasted. After lamination, the film strip fills the spacing area between each battery string to ensure that there is no blank space in the component.

[0052] In addition, the transfer and fusing mechanism 430 includes a bracket 431, a plurality of suction cup components, and a distance drive 434. The suction cup components are mounted on the bracket 431, and the distance drive 434 is used to drive the suction cup components to move and distance to corresponding preset positions. Figure 8 As shown, the suction cup assembly includes a fixed suction cup assembly 432 and a movable suction cup assembly 433. The fixed suction cup assembly 432 is fixed on the bracket 431, and the movable suction cup assembly 433 is slidably connected to the bracket 431. The movable suction cup assembly 433 is installed at the output end of the spacing drive 434. The spacing drive 434 is used to drive the movable suction cup assembly 433 away from / close to the fixed suction cup assembly 432. In this way, on the one hand, when the fixed suction cup assembly 432 and the movable suction cup assembly 433 are close to each other to take the film, the space occupied by the film making mechanism 300 and the film supply mechanism 200 can be reduced, saving space. On the other hand, through the spacing structure, the adaptability of the transfer and melting mechanism 430 can be improved, and it can meet the film application requirements of different types of battery strings, and the film strips between the strings can be spaced to the corresponding preset positions. Of course, multiple suction cup assemblies can also be movable suction cup assemblies 433 or fixed suction cup assemblies 432. The present invention does not make specific limitations on this.

[0053] Furthermore, the aforementioned suction cup assembly includes a support frame 4331, a fixed suction cup assembly 4332, and an adjustable suction cup assembly 4333. The fixed suction cup assembly 4332 and the adjustable suction cup assembly 4333 are mounted on the support frame 4331, and the adjustable suction cup assembly 4333 can be moved along the extension direction of the support frame 4331. By changing the relative position of the adjustable suction cup assembly 4333 and the fixed suction cup assembly 4332, the device can be adapted to meet the needs of modules of different sizes. For example, if the size of a photovoltaic module increases, the relative position of the suction cup assembly 4333 and the fixed suction cup assembly 4332 can be adjusted to increase the overall length of the suction cup assembly, ensuring the effectiveness of transferring and fusing the film strips.

[0054] like Figure 10 As shown, the transfer melting mechanism 430 includes a hot air pipe 4351 and a telescopic part 4352. A pressure part 4353 is fixed to the output end of the telescopic part 4352. The hot air pipe 4351 is used to blow hot air to the inter-string membrane strips at the target position so that the membrane strips are melted at the target position. The pressure part 4353 is used to press against the membrane strips before the hot air pipe 4351 works.

[0055] In practice, after the inter-string membrane strip is moved to the target position, the telescopic member 4352 is activated, pressing the pressing member 4353 against the target object, thereby securing the inter-string membrane strip. Subsequently, the hot air pipe 4351 is activated to blow hot air toward the inter-string membrane strip, causing the membrane strip to melt and adhere to the target object. The pressing member 4353 can be made of a high-temperature-resistant flexible material, such as a high-temperature-resistant sponge or high-temperature-resistant rubber.

[0056] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery string film laminating device, characterized in that: include: A transmission positioning mechanism (100), a film supply mechanism (200), a film making mechanism (300), and a film placing mechanism (400), wherein: The transmission positioning mechanism (100) is used to move the glass plate to the film pasting position, correct it, and move it out of the film pasting position; The film supply mechanism (200) is arranged adjacent to the transmission and positioning mechanism (100) and is used for supplying film strips; The film making mechanism (300) is arranged adjacent to the film supply mechanism (200) and is used to pull the film strip to the top of the transmission positioning mechanism (100) and prepare the inter-string film strip; The film placing mechanism (400) is arranged above the film making mechanism (300) and is used to move the film strips between the strings to a target position and fuse them onto a target part.

2. The battery string film laminating device according to claim 1, characterized in that: The film supply mechanism (200), the film making mechanism (300), and the film placing mechanism (400) are each provided with two groups, which are respectively provided at the feeding end and the discharging end of the transmission positioning mechanism (100).

3. The battery string film laminating device according to claim 1, characterized in that: The transmission positioning mechanism (100) comprises a first positioning component (110) and a second positioning component (120), wherein the positioning direction of the first positioning component (110) is parallel to the conveying direction of the transmission positioning mechanism (100), and the positioning direction of the second positioning component (120) is perpendicular to the positioning direction of the first positioning component (110).

4. The battery string film laminating device according to claim 1, characterized in that: The film supply mechanism (200) comprises a film supply drive (210), a wheel mechanism (220), and a weight mechanism (230); a film roll (240) is installed at the output end of the film supply drive (210); and the film strip provided by the film roll (240) is wound around the wheel mechanism (220) and the weight mechanism (230) in sequence.

5. The battery string film laminating device according to claim 1, characterized in that: The film making mechanism (300) comprises a film pulling mechanism (310), a film laying platform (320), a film cutting mechanism (330), a pressing mechanism (340), and a clamping mechanism (350). The film pulling mechanism (310) is used to pull the film strip extending from the film supply mechanism (200) onto the film laying platform (320). The pressing mechanism (340) and the clamping mechanism (350) are respectively arranged on both sides of the film cutting mechanism (330). The film cutting mechanism (330) is used to cut the film strip into the film strip.

6. The battery string film laminating device according to claim 5, characterized in that: The film laying platform (320) comprises a film laying base (321) and two limiting strips (322), wherein the two limiting strips (322) are fixed on the film laying base (321) to form limiting grooves (323) on the film laying base (321).

7. The battery string film laminating device according to claim 1, characterized in that: The film placing mechanism (400) includes a transfer and melting mechanism (430), and a longitudinal driving component (410) and a transverse driving component (420) are installed on the transfer and melting mechanism (430). The longitudinal driving component (410) is used to drive the transfer and melting mechanism (430) to perform a longitudinal translation movement so that the transfer and melting mechanism (430) performs a film taking / film placing and film pasting action, and the transverse driving component (420) is used to drive the transfer and melting mechanism (430) to perform a transverse translation movement so that the transfer and melting mechanism (430) can reciprocate between the film taking position and the film placing position.

8. The battery string film laminating device according to claim 7, characterized in that: The transfer and melting mechanism (430) includes a bracket (431), a plurality of suction cup assemblies, and a spacing drive (434). The suction cup assembly is installed on the bracket (431), and the spacing drive (434) is used to drive the suction cup assembly to move and spacing to corresponding preset positions.

9. The battery string film laminating device according to claim 8, characterized in that: The suction cup assembly comprises a support frame (4331), a fixed suction cup group (4332), and an adjustable suction cup group (4333); the fixed suction cup group (4332) and the adjustable suction cup group (4333) are mounted on the support frame (4331); and the adjustable suction cup group (4333) can move along the extension direction of the support frame (4331).

10. The battery string film laminating device according to claim 7, characterized in that: The transfer and melting mechanism (430) includes a hot air pipe (4351) and a telescopic member (4352), and a pressure member (4353) is fixed to the output end of the telescopic member (4352). The hot air pipe (4351) is used to blow hot air to the film strip at the target position so that the film strip is melted at the target position, and the pressure member (4353) is used to press against the film strip before the hot air pipe (4351) works.

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