Film pasting device

Abstract

The utility model discloses a film pasting device and relates to the field of batteries. The film pasting device comprises a containing box, a first vacuumizing piece, a vacuum adsorption plate and a pressing assembly. The first vacuumizing piece is communicated with the accommodating cavity; the first vacuumizing piece is used for pumping out air in the containing cavity; the vacuum adsorption plate is arranged in the accommodating cavity; the vacuum adsorption plate is used for adsorbing a film material; the pressing assembly is arranged in the containing cavity. The pressing assembly is arranged opposite to the vacuum adsorption plate in the first direction, and the pressing assembly can move in the first direction so that the battery can abut against the film material. The pressing assembly can move in the first direction to push the battery to move until the battery abuts against the film material, then the vacuum adsorption plate breaks vacuum to stop adsorbing the film material, and due to the fact that the interior of the containing cavity is in a vacuum state, pressure difference occurs at the upper end and the lower end of the film material so that the film material can be attached to the end face, abutting against the film material, of the battery. Bubbles between the battery and the film material are reduced, and the film pasting quality is improved.

Description

Technical Field

[0001] The utility model relates to the field of batteries, in particular to a film sticking device. Background Art

[0002] In the process of film lamination of square shell lithium batteries, the commonly used technology is roller lamination, that is, the film material is straightened, and the battery cell is pushed forward, and the shell surface of the battery cell is rolled by upper and lower rollers to attach the film material to the shell surface of the battery cell. However, in order to meet the design requirements, the existing battery cell structure is relatively large, and a concave structure is provided on the shell surface of the battery cell. The existing equipment optimizes the shape of the upper and lower pressing rollers according to the concave structure that is prone to appear on the large surface of the battery cell, so that the upper and lower pressing rollers match the size of the concave structure, and adjusts the rolling pressure of the upper and lower pressing rollers. Although this method can reduce the generation of bubbles to a certain extent, bubbles may still remain between the film material and the shell after rolling, making it difficult to ensure the quality of the film lamination. Utility Model Content

[0003] To this end, the utility model provides a film pasting device, which solves the technical problem that bubbles remain between the film material and the shell after rolling, making it difficult to ensure the quality of the film pasting.

[0004] To achieve the above-mentioned objectives, the utility model specifically provides the following technical solutions: a film sticking device, comprising: a containing box, provided with a containing cavity; a first vacuum pumping component, connected to the containing cavity; the first vacuum pumping component is used to extract the air in the containing cavity; a vacuum adsorption plate, arranged in the containing cavity; the vacuum adsorption plate is used to adsorb film material; a clamping assembly, arranged in the containing cavity; the clamping assembly is arranged opposite to the vacuum adsorption plate in a first direction, and the clamping assembly can move along the first direction to make the battery abut against the film material.

[0005] Optionally, the clamping assembly includes a clamping member and a shifting member; the clamping member is arranged opposite to the vacuum adsorption plate in a first direction, and the clamping member is used to clamp the battery; the shifting member is connected to the clamping member; the shifting member can drive the clamping member to move along the first direction, and can drive the clamping member to move until the battery clamped by the clamping member abuts against the film material.

[0006] Optionally, the clamping member includes a clamping plate, a pressure plate and an adjusting member; the pressure plate is arranged opposite to the vacuum adsorption plate in a first direction, two clamping plates are provided and arranged opposite to each other along a second direction, the two clamping plates are used to clamp the opposite side surfaces of the battery, the adjusting member is arranged on the pressure plate and connected to the clamping plates, and the adjusting member can drive the clamping plates to move in a direction closer to each other or away from each other.

[0007] Optionally, the clamping member also includes a slide rail, which is arranged on the pressure plate, and the extension direction of the slide rail is arranged in the same direction as the second direction; there are two adjusting members, and the two adjusting members are arranged opposite to each other along the second direction; each adjusting member includes a slider, a limit frame and a limit bolt, and the slider is slidably connected to the slide rail and can reciprocate on the slide rail along the second direction, and the sliders of the two adjusting members are respectively connected to the two clamping plates; the two limit frames are relatively arranged on both sides of the pressure plate along the second direction, and the limit frames are provided with threaded holes, and the limit bolts can be rotatably passed through the threaded holes, and one end of the limit bolt abuts against the end of the slider away from the other slider.

[0008] Optionally, a plurality of the slide rails are provided and are spaced apart along the third direction, the slider is slidably connected to the plurality of the slide rails, and an angle exists between the first direction, the second direction and the third direction.

[0009] Optionally, the clamping member also includes a connecting rod and a rotating shaft, wherein the rotating shaft extends along a first direction, the rotating shaft is rotatably arranged on the pressure plate, and the connecting rod is rotatably connected to the rotating shaft; a guide groove is arranged on the connecting rod, and two guide grooves are arranged symmetrically with respect to the axial direction of the rotating shaft; the adjusting member also includes a guide column, which is arranged at the top end of the slider, and the guide columns of the two adjusting members are respectively movably arranged in the two guide grooves to drive the two clamps to move closer to or away from each other.

[0010] Optionally, avoidance grooves are provided on opposite sides of the pressure plate, the avoidance grooves are extended along the second direction, the two clamps are respectively arranged opposite to the two avoidance grooves in the second direction, and the clamps can move into the avoidance grooves.

[0011] Optionally, the containing box comprises a box body and a cover body; the box body and the cover body are detachably arranged, and the displacement member is connected to the cover body.

[0012] Optionally, the displacement member includes a guide sleeve, a pressure rod and a guide rod, the cover body is provided with a through opening, the guide sleeve is arranged at the through opening, the guide rod can be slidably passed through the guide sleeve and the through opening, and the two ends of the guide rod are respectively connected to the clamping member and the pressure rod.

[0013] Optionally, the vacuum adsorption plate includes a plate member and a second vacuum pumping member, the plate member is provided with a plurality of adsorption holes, the second vacuum pumping member is connected to the plurality of adsorption holes, and the second vacuum pumping member is used to extract the air in the adsorption holes.

[0014] Compared with the prior art, the utility model has the following beneficial effects: in the embodiment of the utility model, the film material can be placed on the vacuum adsorption plate, and the vacuum adsorption plate can adsorb the film material by vacuum adsorption to fix the position of the film material; the gas in the accommodating chamber can be extracted by the first vacuum pumping member, so that the accommodating chamber can be in a vacuum state, and the battery can be placed between the clamping assembly and the vacuum adsorption plate. Since the clamping assembly is arranged relative to the vacuum adsorption plate in the first direction, the clamping assembly can push the battery to move by moving along the first direction until the battery abuts against the film material, so that the battery and the film material can fit tightly, and then the vacuum adsorption plate breaks the vacuum to stop adsorbing the film material. Since the accommodating chamber is in a vacuum state, a pressure difference occurs at the upper and lower ends of the film material, so that the film material can be attached to the end surface where the battery and the film material abut, thereby reducing bubbles between the battery and the film material and improving the quality of the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 A schematic structural diagram of a film sticking device provided by an embodiment of the utility model;

[0017] Figure 2 A schematic structural diagram of a vacuum adsorption plate, a clamping member and a shifting member of a film sticking device provided by an embodiment of the utility model;

[0018] Figure 3 A cross-sectional view of a containing box, a cover body and a plate member of a film sticking device provided in an embodiment of the utility model.

[0019] Reference numerals:

[0020] The receiving box 100; the receiving chamber 101; the box body 110; the cover body 120; the through hole 121; the vacuum adsorption plate 200; the plate 210; the adsorption hole 211; the clamping member 300; the clamping plate 310; the mounting groove 311; the pressing plate 320; the rotating shaft 321; the adjusting member 330; the sliding block 331; the limiting frame 332; the limiting bolt 333; the guide column 334; the sliding rail 340; the connecting rod 350; the guide groove 351; the shifting member 400; the guide sleeve 410; the pressing rod 420; the guide rod 430. DETAILED DESCRIPTION

[0021] In order to make the utility model's purpose, features, and advantages more obvious and easy to understand, the following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the embodiments described below are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0023] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] Reference below Figures 1 to 3 A film sticking device according to an embodiment of the utility model is described.

[0025] According to the film sticking device of the embodiment of the utility model, the film sticking device includes a containing box 100, a first vacuum pumping component, a vacuum adsorption plate 200 and a pressing assembly; the containing box 100 is provided with a containing chamber 101; the first vacuum pumping component is connected to the containing chamber 101; the first vacuum pumping component is used to extract the air in the containing chamber 101; the vacuum adsorption plate 200 is arranged in the containing chamber 101; the vacuum adsorption plate 200 is used to adsorb film material; the pressing assembly is arranged in the containing chamber 101; the pressing assembly is arranged opposite to the vacuum adsorption plate 200 in a first direction, and the pressing assembly can move along the first direction to make the battery abut against the film material.

[0026] In an embodiment of the utility model, the film material can be placed on the vacuum adsorption plate 200, and the vacuum adsorption plate 200 can adsorb the film material by vacuum adsorption to fix the position of the film material; the gas in the accommodating chamber 101 can be extracted by the first vacuum pumping member, so that the accommodating chamber 101 can be in a vacuum state, and the battery can be placed between the clamping assembly and the vacuum adsorption plate 200. Since the clamping assembly is arranged relative to the vacuum adsorption plate 200 in the first direction, the clamping assembly can push the battery to move by moving along the first direction until the battery abuts against the film material, so that the battery and the film material can be tightly fitted, and then the vacuum adsorption plate 200 breaks the vacuum to stop adsorbing the film material. Since the accommodating chamber 101 is in a vacuum state, a pressure difference occurs at the upper and lower ends of the film material, so that the film material can be attached to the end surface where the battery and the film material abut, thereby reducing bubbles between the battery and the film material and improving the quality of the film.

[0027] Reference Figure 2 It can be understood that the clamping assembly includes a clamping member 300 and a shifting member 400; the clamping member 300 is arranged opposite to the vacuum adsorption plate 200 in the first direction, and the clamping member 300 is used to clamp the battery; the shifting member 400 is connected to the clamping member 300; the shifting member 400 can drive the clamping member 300 to move along the first direction, and can drive the clamping member 300 to move until the battery clamped by the clamping member 300 abuts against the film material.

[0028] The clamping member 300 is arranged opposite to the vacuum adsorption plate 200 in the first direction. The battery can be clamped by the clamping member 300 to fix the position of the battery, and the battery can be arranged opposite to the vacuum adsorption plate 200 in the first direction; the shifting member 400 is connected to the clamping member 300, and the shifting member 400 drives the clamping member 300 to move along the first direction, so as to be able to drive the clamping member 300 to move along the first direction, thereby driving the battery clamped by the clamping member 300 to move, so as to achieve the contact between the battery clamped by the clamping member 300 and the film material; the clamping member 300 is driven to move back and forth in the first direction by the shifting member 400, so as to achieve the function of moving the battery.

[0029] Reference Figure 2 It can be understood that the clamping member 300 includes a clamping plate 310, a pressing plate 320 and an adjusting member 330; the pressing plate 320 is arranged opposite to the vacuum adsorption plate 200 in the first direction, and two clamping plates 310 are arranged opposite to each other in the second direction. The two clamping plates 310 are used to clamp the opposite sides of the battery. The adjusting member 330 is arranged on the pressing plate 320 and connected to the clamping plate 310. The adjusting member 330 can drive the clamping plates 310 to move in a direction close to each other or away from each other.

[0030] By driving the clamps 310 away from each other through the adjusting member 330, the clamps 310 can be opened, so that the battery can be placed between the two clamps 310. The two clamps 310 are arranged relative to each other in the second direction, so that the clamps 310 are respectively located on both sides of the battery. The clamps 310 are driven to move closer to each other through the adjusting member 330 so that the two clamps 310 can clamp the opposite sides of the battery, thereby fixing the battery.

[0031] The adjusting member 330 may be a manual clamping structure, or a cylinder driven structure or other driving forms.

[0032] Specifically, there is an angle between the first direction and the second direction; wherein, the first direction can be a vertical direction, the clamping member 300 is located above the vacuum adsorption plate 200, and the shifting member 400 drives the clamping member 300 to move up and down, and the second direction can be a horizontal direction, and the two clamping plates 310 are respectively arranged on the opposite sides of the battery in the horizontal direction, and the two clamping plates 310 are respectively arranged relative to the opposite side ends of the battery, so that the two clamping plates 310 can respectively clamp the opposite side surfaces of the battery, which can reduce the possibility of the clamping plate 310 colliding with the vacuum adsorption plate 200 during the process of the shifting member 400 driving the clamping member 300 to move.

[0033] Specifically, the adjusting member 330 also includes a connecting bolt, and a mounting groove 311 is provided on the clamping plate 310, and the mounting groove 311 is extended along the first direction. A connecting hole is provided at the side end of the slider 331, and the connecting bolt is detachably inserted into the mounting groove 311 and the connecting hole to connect the slider 331 and the clamping plate 310; the slider 331 is connected to the clamping plate 310 through the connecting bolt, and the connecting bolt is detachably inserted into the mounting groove 311 and the connecting hole, so that when it is necessary to adjust the position of the clamping plate 310 relative to the slider 331, the connecting bolt can be removed, the clamping plate 310 can be moved up and down, and then the connecting bolt can be reinstalled.

[0034] Reference Figure 2 , it can be understood that the clamping member 300 also includes a slide rail 340, which is arranged on the pressure plate 320, and the extension direction of the slide rail 340 is arranged in the same direction as the second direction; there are two adjusting members 330, and the two adjusting members 330 are arranged opposite to each other along the second direction; each adjusting member 330 includes a slider 331, a limit frame 332 and a limit bolt 333, the slider 331 is slidably connected to the slide rail 340 and can reciprocate on the slide rail 340 along the second direction, and the sliders 331 of the two adjusting members 330 are respectively connected to the two clamping plates 310; the two limit frames 332 are arranged opposite to each other on both sides of the pressure plate 320 along the second direction, and the limit frames 332 are provided with threaded holes, and the limit bolts 333 are rotatably penetrated through the threaded holes, and one end of the limit bolt 333 abuts against the end of the slider 331 away from the other slider 331.

[0035] A slide rail 340 is provided on the pressure plate 320, and a slider 331 of the adjustment member 330 can slide back and forth on the slide rail 340. Since the extension direction of the slide rail 340 is arranged in the same direction as the direction in which the two clamping plates 310 approach or move away from each other, the movement direction of the clamping plates 310 can be limited by setting the slider 331 and the slide rail 340; specifically, the operator can move the clamping plates 310 so that the two clamping plates 310 move toward each other or away from each other, and the slide rail 340 and the slider 331 can limit the movement of the clamping plates 310 in the second direction; Limiting frames 332 are installed on both sides of the pressure plate 320. The two limiting frames 332 are arranged on both sides of the pressure plate 320 relatively along the second direction. The limiting bolts 333 pass through the threaded holes on the limiting frames 332. One end of the limiting bolt 333 abuts against the end of the slider 331 away from the other slider 331, so that the position of the clamping plate 310 can be limited by the limiting bolt 333 to prevent the clamping plate 310 from continuing to move in the direction away from the other clamping plate 310, so that the two clamping plates 310 can stably clamp the battery.

[0036] Specifically, the extension direction of the screw rod of the limiting bolt 333 is set in the same direction as the second direction. By rotating the limiting bolt 333, the limiting bolt 333 can be moved in the second direction to adjust the position of the limiting bolt 333, thereby limiting the position to which the clamping plate 310 can move.

[0037] Specifically, there are multiple limit frames 332 and limit bolts 333, and the multiple limit frames 332 are arranged at intervals. The multiple limit bolts 333 are rotatably passed through the threaded holes of the multiple limit frames 332 one by one; by setting multiple limit frames 332, multiple limit bolts 333 can be installed in conjunction with the installation, and the position of the slider 331 can be stably limited by the multiple limit bolts 333; specifically, there are two limit frames 332 and limit bolts 333 of an adjusting member 330, and after the operator pushes the clamping plates 310 to clamp the battery, the operator can first rotate the limit bolt 333 of one of the adjusting members 330 so that the limit bolt 333 abuts against a slider 331, and then rotate and tighten the other three limit bolts 333 to limit the position of the slider 331, thereby limiting the position of the clamping plate 310, so that the clamping plate 310 can clamp the battery.

[0038] Reference Figure 2 It can be understood that there are multiple slide rails 340 and they are spaced apart along the third direction, the slider 331 is slidably connected to the multiple slide rails 340, and there is an angle between the first direction, the second direction and the third direction.

[0039] The sliding stability of the slider 331 can be improved by setting a plurality of slide rails 340; specifically, the arrangement direction of the plurality of slide rails 340 is perpendicular to the direction in which the clamp plates 310 approach or move away from each other; the first direction can be a vertical direction, and the second direction and the third direction are both horizontal directions, wherein the second direction and the third direction are perpendicular to each other.

[0040] Reference Figure 2 It can be understood that the clamping member 300 also includes a connecting rod 350 and a rotating shaft 321. The rotating shaft 321 is extended along the first direction, and the rotating shaft 321 is rotatably arranged on the pressure plate 320. The connecting rod 350 is rotatably connected to the rotating shaft 321; a guide groove 351 is arranged on the connecting rod 350, and two guide grooves 351 are arranged and symmetrically arranged relative to the axial direction of the rotating shaft 321; the adjusting member 330 also includes a guide column 334, and the guide column 334 is arranged at the top end of the slider 331. The guide columns 334 of the two adjusting members 330 are respectively movably arranged in the two guide grooves 351 to drive the two clamping plates 310 to move closer to or away from each other.

[0041] The rotating shaft 321 is arranged at the top of the pressure plate 320, and a rotating hole is arranged at the center of the connecting rod 350. The connecting rod 350 is sleeved on the rotating shaft 321 through the rotating hole, so that the connecting rod 350 is rotatably connected with the rotating shaft 321, and the connecting rod 350 can rotate around the axis direction of the rotating shaft 321; the two guide grooves 351 are symmetrically arranged relative to the axis direction of the rotating shaft 321, and a guide column 334 is arranged at the top of the slider 331. The guide column 334 can slide through the guide groove 351, and the guide groove 351 can be set to limit the guide column 334 in the guide groove 351. Regarding the direction of movement, when any slider 331 is pushed, the guide column 334 can slide in the guide groove 351, so that the connecting rod 350 rotates around the rotating shaft 321, so as to drive the other slider 331 to move through the connecting rod 350, so that the two sliders 331 move at the same time, so as to realize that the two clamps 310 move closer to or away from each other; specifically, the two guide columns 334 are symmetrically arranged relative to the axis of the rotating shaft 321, so that the two sliders 331 can move synchronously and can move the same distance at the same time, so as to realize the center clamping of the battery.

[0042] Reference Figure 2 It can be understood that avoidance grooves are provided on opposite sides of the pressure plate 320, and the avoidance grooves are extended along the second direction. The two clamps 310 are respectively arranged opposite to the two avoidance grooves in the second direction, and the clamps 310 can move into the avoidance grooves.

[0043] The pressure plate 320 is respectively provided with two avoidance grooves in the second direction, and the two avoidance grooves are respectively provided on the opposite sides of the pressure plate 320, wherein the avoidance grooves are extended along the second direction, and since the two clamps 310 are respectively provided opposite to the two avoidance grooves in the second direction, when the clamp 310 moves toward the direction close to the pressure plate 320, the clamp 310 can move into the avoidance groove. By providing the avoidance groove, the movable distance of the clamp 310 can be increased, the operability is improved, and the possibility of collision between the clamp 310 and the pressure plate 320 can be reduced, thereby improving safety; when it is necessary to clamp a smaller battery by the clamp 310, the clamp 310 can move into the avoidance groove along the second direction, so that the clamp 310 can clamp a smaller battery, thereby improving the compatibility of the clamp 310.

[0044] Reference Figure 1 It can be understood that the storage box 100 includes a box body 110 and a cover body 120 ; the box body 110 and the cover body 120 are detachably arranged, and the shifting member 400 is connected to the cover body 120 .

[0045] The box body 110 is provided with a cavity and an opening, and the cover body 120 can cover the opening to define a accommodating cavity 101 together with the box body 110; the cover body 120 is connected to the displacement member 400, and the cover body 120 is removed from the box body 110 to drive the displacement member 400 and the clamping member 300, so that the operator can operate the clamping member 300 to clamp and release the battery.

[0046] Reference Figures 1 to 3 It can be understood that the shifting member 400 includes a guide sleeve 410, a pressure rod 420 and a guide rod 430, a through opening 121 is provided on the cover body 120, the guide sleeve 410 is provided at the through opening 121, the guide rod 430 is slidably inserted into the guide sleeve 410 and the through opening 121, the lower end of the guide rod 430 is connected to the clamping member 300, and the upper end of the guide rod 430 is connected to the pressure rod 420.

[0047] By setting the guide sleeve 410, the moving direction of the guide rod 430 can be limited. Specifically, the cover body 120 is set at the top of the box body 110, and the guide sleeve 410 passes through the upper and lower ends of the cover body 120. The guide rod 430 can slide up and down, and the lower end of the guide rod 430 is connected to the clamping connection to drive the clamping member 300 to move up and down; a pressure rod 420 is set on the top of the guide rod 430, and the pressure rod 420 is located outside the accommodating cavity 101. The operator can grasp the pressure rod 420 and move it up and down, which is convenient for operating the clamping member 300 to move up and down; by operating the pressure rod 420 to move downward, the clamping member 300 can be driven to move downward, so that the battery can be pressed down to abut against the film material on the vacuum adsorption plate 200.

[0048] Specifically, two through openings 121 are provided on the cover body 120, and correspondingly, two guide sleeves 410 and two guide rods 430 are provided. The two guide rods 430 are slidably inserted into the two guide sleeves 410 and the two through openings 121, respectively, and the upper ends of the two guide rods 430 are respectively connected to the two ends of the pressure rod 420, so as to improve the stability of the up and down movement of the guide rod 430 and the pressure rod 420.

[0049] Reference Figure 2 It can be understood that the vacuum adsorption plate 200 includes a plate 210 and a second vacuum pumping member, the plate 210 is provided with a plurality of adsorption holes 211, the second vacuum pumping member is connected to the plurality of adsorption holes 211, and the second vacuum pumping member is used to extract the air in the adsorption holes 211.

[0050] The vacuum adsorption plate 200 is located in the accommodating cavity 101 . After the film material is placed on the plate 210 , the film material can cover the plate 210 . The air in the adsorption hole 211 can be extracted through the second vacuum pump to adsorb the film material on the plate 210 .

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A film sticking device, characterized in that: include: A containing box (100) is provided with a containing cavity (101); a first vacuum pumping component, which is connected to the accommodating chamber (101); the first vacuum pumping component is used to extract air from the accommodating chamber (101); A vacuum adsorption plate (200) is arranged in the accommodating cavity (101); the vacuum adsorption plate (200) is used to adsorb film material; A clamping assembly is arranged in the accommodating cavity (101); the clamping assembly is arranged opposite to the vacuum adsorption plate (200) in a first direction, and the clamping assembly can move along the first direction to make the battery abut against the film material.

2. The film sticking device according to claim 1, characterized in that: The clamping assembly comprises a clamping member (300) and a displacement member (400); the clamping member (300) is arranged opposite to the vacuum adsorption plate (200) in a first direction, and the clamping member (300) is used to clamp a battery; the displacement member (400) is connected to the clamping member (300); the displacement member (400) can drive the clamping member (300) to move along the first direction, and can drive the clamping member (300) to move until the battery clamped by the clamping member (300) abuts against the film material.

3. The film sticking device according to claim 2, characterized in that: The clamping member (300) includes a clamping plate (310), a pressing plate (320) and an adjusting member (330); the pressing plate (320) is arranged opposite to the vacuum adsorption plate (200) in a first direction, two clamping plates (310) are arranged opposite to each other in a second direction, and the two clamping plates (310) are used to clamp the opposite sides of the battery; the adjusting member (330) is arranged on the pressing plate (320) and connected to the clamping plate (310); the adjusting member (330) can drive the clamping plates (310) to move in a direction of approaching each other or moving away from each other.

4. The film sticking device according to claim 3, characterized in that: The clamping member (300) further comprises a slide rail (340), the slide rail (340) being arranged on the pressing plate (320), and the extension direction of the slide rail (340) being arranged in the same direction as the second direction; two adjusting members (330) are arranged, and the two adjusting members (330) are arranged opposite to each other along the second direction; each adjusting member (330) comprises a slider (331), a limiting frame (332) and a limiting bolt (333), and the slider (331) is slidably connected to the slide rail (340) and can be moved along the second direction. The two adjusting members (330) reciprocate on the slide rail (340) in the second direction, and the sliders (331) of the two adjusting members (330) are respectively connected to the two clamping plates (310); the two limiting frames (332) are relatively arranged on both sides of the pressure plate (320) along the second direction, and the limiting frames (332) are provided with threaded holes, and the limiting bolts (333) are rotatably passed through the threaded holes, and one end of the limiting bolts (333) abuts against one end of the slider (331) away from the other slider (331).

5. The film sticking device according to claim 4, characterized in that: The slide rails (340) are provided in plurality and are arranged at intervals along the third direction; the slider (331) is slidably connected to the plurality of slide rails (340); and an angle exists between the first direction, the second direction and the third direction.

6. The film sticking device according to claim 3, characterized in that: The clamping member (300) further includes a connecting rod (350) and a rotating shaft (321), wherein the rotating shaft (321) is extended along a first direction, the rotating shaft (321) is rotatably arranged on the pressure plate (320), and the connecting rod (350) is rotatably connected to the rotating shaft (321); a guide groove (351) is arranged on the connecting rod (350), and two guide grooves (351) are arranged and are symmetrically arranged relative to the axial direction of the rotating shaft (321); the adjusting member (330) further includes a guide column (334), wherein the guide column (334) is arranged at the top end of the sliding block (331), and the guide columns (334) of the two adjusting members (330) are respectively movably arranged in the two guide grooves (351) to drive the two clamping plates (310) to move closer to or away from each other.

7. The film sticking device according to claim 3, characterized in that: The pressure plate (320) is provided with avoidance grooves on opposite sides thereof, the avoidance grooves extending along the second direction, the two clamping plates (310) being respectively arranged opposite to the two avoidance grooves in the second direction, and the clamping plates (310) being able to move into the avoidance grooves.

8. The film sticking device according to claim 1, characterized in that: The containing box (100) comprises a box body (110) and a cover body (120); the box body (110) and the cover body (120) are detachably arranged, and the displacement member (400) is connected to the cover body (120).

9. The film sticking device according to claim 8, characterized in that: The displacement member (400) includes a guide sleeve (410), a pressure rod (420) and a guide rod (430); a through opening (121) is provided on the cover body (120); the guide sleeve (410) is provided at the through opening (121); the guide rod (430) is slidably inserted into the guide sleeve (410) and the through opening (121); and two ends of the guide rod (430) are respectively connected to the clamping member (300) and the pressure rod (420).

10. The film sticking device according to claim 1, characterized in that: The vacuum adsorption plate (200) comprises a plate member (210) and a second vacuum extracting member, wherein the plate member (210) is provided with a plurality of adsorption holes (211), and the second vacuum extracting member is connected to the plurality of adsorption holes (211), and is used to extract air from the adsorption holes (211).

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