CN218472034U

CN218472034U - Battery core film pasting device

Info

Publication number: CN218472034U
Application number: CN202222578653.0U
Authority: CN
Inventors: 肖代勇
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2023-02-10
Anticipated expiration: 2032-09-28

Abstract

The utility model belongs to the technical field of the battery is made, a electric core pad pasting device is disclosed. This electric core pad pasting device includes the frame, feeding agencies, feed mechanism and pad pasting mechanism, be provided with the base plate in the frame, the base plate is used for fixed electric core, feeding agencies sets up in the frame, feeding agencies is used for cutting out the PET membrane of predetermineeing length, feed mechanism sets up between base plate and feeding agencies, feed mechanism is used for adsorbing the PET membrane of predetermineeing length and upset transport to the upper surface of electric core, pad pasting mechanism is used for encircleing the PET membrane of predetermineeing length and attached on the outer wall of electric core. This electric core pad pasting device can guarantee that the PET membrane is level and smooth attached on the surface of electric core, guarantees to change the preface in-process and plays good protection to electric core to replace the manual work at the pad pasting in-process through the machine, improve the efficiency of pad pasting.

Description

Battery core film pasting device

Technical Field

The utility model relates to a battery manufacturing technology field especially relates to electric core pad pasting device.

Background

The bare cell is the most important part of the lithium battery structure, and how to avoid the abrasion of the diaphragm on the surface of the bare cell in the process of sequence conversion is the key point of process control. In the prior art, the cladding of the naked electric core top layer of lamination is mainly through wrapping polyester film or diaphragm, and polyester film or diaphragm produce fold or wearing and tearing easily because of softer material characteristic in the cladding process to all wrap through the manual work, production efficiency is low.

Therefore, a need exists for a cell lamination device to solve the problems of the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electricity core pad pasting device can improve the efficiency of electricity core pad pasting.

To achieve the purpose, the utility model adopts the following technical proposal:

electric core pad pasting device includes:

a frame on which a substrate is disposed, the substrate being configured to secure a cell;

the material taking mechanism is arranged on the rack and is configured to cut the PET film with a preset length;

the feeding mechanism is arranged on one side, close to the material taking mechanism, of the substrate and is configured to adsorb, turn over and convey the PET film with a preset length to the upper surface of the battery cell;

the film pasting mechanism is configured to surround and paste the PET film with a preset length on the outer wall of the battery cell.

Optionally, extracting mechanism includes that the PET membrane is put the spool, is removed the subassembly, first drawing the membrane and pressing from both sides and the cutter, the PET membrane is put the epaxial rolling of spool and is had a plurality of circles the PET membrane, first drawing the membrane press from both sides with the removal end that removes the subassembly is connected, it drives to remove the subassembly first drawing the membrane press from both sides the removal with will the PET membrane is followed the PET membrane is put the spool and is pulled out a plurality of lengths, the cutter is cut out and is got preset length the PET membrane.

Optionally, the feeding agencies still includes two PET membrane briquetting, the cutter is located two between the PET membrane briquetting.

Optionally, the feeding mechanism includes a first driving motor, a first vacuum chuck and a vacuum generator, an output end of the first driving motor is connected to the first vacuum chuck, the first vacuum chuck is communicated to the vacuum generator, the vacuum generator is configured to generate a negative pressure on a surface of the first vacuum chuck to adsorb the cut PET film with a preset length, and the first driving motor is configured to drive the first vacuum chuck to turn over so as to convey the PET film with a preset length to an upper surface of the electric core.

Optionally, the feeding mechanism further includes a second film pulling clamp, the second film pulling clamp is connected to the rack, and the second film pulling clamp is configured to clamp an end of the PET film opposite to the first film pulling clamp after the first vacuum chuck is turned over.

Optionally, the film sticking mechanism comprises a first compression roller mechanism, the first compression roller mechanism comprises a first driving assembly, a first compression roller and a second compression roller, the first compression roller and the second compression roller are connected with the output end of the first driving assembly, the first driving assembly is configured to drive the first compression roller to attach the PET film to the battery core close to the end face of the feeding mechanism, and the second compression roller is driven to attach the PET film to the battery core far away from the end face of the feeding mechanism.

Optionally, the first driving assembly comprises a first horizontal cylinder, a first vertical cylinder and a second vertical cylinder, the first horizontal cylinder is arranged on the rack, the first vertical cylinder and the second vertical cylinder are both connected with the output end of the first horizontal cylinder, the output end of the first vertical cylinder is provided with the first compression roller, and the output end of the second vertical cylinder is provided with the second compression roller.

Optionally, the film pasting mechanism further comprises a push plate mechanism, the push plate mechanism comprises a positioning clamp and a push plate, the push plate is in sliding connection with the bottom of the positioning clamp, the positioning clamp is used for clamping the battery cell, and the push plate is used for attaching the PET film to the lower surface of the battery cell.

Optionally, the push plate mechanism further includes a first linear moving assembly, the first linear moving assembly includes a second horizontal cylinder and a support, an output end of the second horizontal cylinder is connected to the support, the positioning clamp is disposed on the support, and the second horizontal cylinder is configured to drive the positioning clamp to approach the electric core so as to be clamped on the electric core.

Optionally, the first linear moving assembly further includes a first slide rail and a first slide block, the first slide rail is connected to the frame, the first slide block is slidably connected to the first slide rail, and the bracket is connected to the first slide block.

Optionally, the push plate mechanism further comprises a first clamping cylinder, the first clamping cylinder is arranged on the support, and an output end of the first clamping cylinder is connected with the positioning clamp.

Optionally, the film sticking mechanism further comprises a second pressing roller mechanism, the second pressing roller mechanism comprises a second driving assembly and a third pressing roller, the third pressing roller is connected with the output end of the second driving assembly, and the second driving assembly is configured to drive the third pressing roller to attach the PET film to the end surface, close to the feeding mechanism, of the battery core.

Optionally, the second driving assembly includes a second linear moving assembly and a third vertical cylinder, an output end of the second linear moving assembly is connected to the third vertical cylinder, and an output end of the third vertical cylinder is provided with the third press roller.

Has the beneficial effects that:

the utility model provides an electricity core pad pasting device, fix the back to electric core through the base plate, the PET membrane of presetting length is cut out to the feeding mechanism, feeding mechanism will this preset the PET membrane upset of length and place the upper surface at electric core, then encircle and attach on electric core this preset the PET membrane of length through pad pasting mechanism, this electricity core pad pasting device can guarantee that the PET membrane is level and smooth attached on the surface of electric core, guarantee to change the preface in-process and play good protection to electric core, and replace the manual work through the machine at the pad pasting in-process, improve the efficiency of pad pasting.

Drawings

Fig. 1 is an exploded view of a cell film-pasting device provided by the present invention;

fig. 2 is a first film sticking process diagram of the battery cell film sticking device provided by the utility model;

fig. 3 is a film pasting process diagram two of the battery cell film pasting device provided by the utility model.

In the figure:

10. a PET film; 20. an electric core;

100. a negative pressure sucker;

200. a material taking mechanism; 210. unwinding a PET film roll; 220. a moving belt; 230. a first film drawing clamp; 240. a cutter; 250. PET film briquetting; 260. a second film drawing clamp; 270. pressing a PET film;

300. a feeding mechanism; 310. a first vacuum chuck;

400. a first press roller mechanism; 411. a first horizontal cylinder; 412. a first vertical cylinder; 413. a second vertical cylinder; 420. a first press roll; 430. a second press roll;

500. a push plate mechanism; 510. positioning clips; 520. pushing a plate; 530. a first linear motion assembly; 531. a support;

600. a second press roll mechanism; 610. and a third press roll.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures associated with the present invention are shown in the drawings, not all of them.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected", "connected" and "fixed" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The embodiment provides a battery core film pasting device, as shown in fig. 1, fig. 2 and fig. 3, the battery core film pasting device comprises a rack, a material taking mechanism 200, a feeding mechanism 300 and a film pasting mechanism, a substrate is arranged on the rack, a negative pressure sucker 100 is arranged on the substrate, a suction hole is formed in the surface of the negative pressure sucker 100, the suction hole is communicated with a negative pressure generator, the negative pressure generator generates negative pressure to fix a battery core 20 on the substrate, the material taking mechanism 200 is arranged on the left side of the substrate in the rack and used for cutting a PET film 10 with a preset length, the feeding mechanism 300 is arranged between the material taking mechanism 200 and the substrate, the feeding mechanism 300 is used for overturning and conveying the PET film with the preset length on the upper surface of the battery core 20, and then the film pasting mechanism can encircle and attach the PET film 10 with the preset length on the outer wall of the battery core 20. This electric core pad pasting device can guarantee that PET membrane 10 is level and smooth attached on electric core 20's surface, guarantees to change the preface in-process and plays good protection to electric core 20 to replace the manual work at the pad pasting in-process through the machine, improve the efficiency of pad pasting.

This electric core pad pasting device can guarantee that PET membrane 10 is level and smooth attached on electric core 20's surface, guarantees to change the preface in-process and plays good protection to electric core 20 to replace the manual work at the pad pasting in-process through the machine, improve the efficiency of pad pasting.

Preferably, as shown in fig. 1 and 2, the material taking mechanism 200 includes a PET film unwinding shaft 210, a moving assembly, a first film drawing clamp 230 and a cutter 240, wherein a plurality of circles of PET films 10 are wound on the PET film unwinding shaft 210, the first film drawing clamp 230 is connected to a moving end of the moving assembly, the moving assembly drives the first film drawing clamp 230 to move so as to draw a plurality of lengths of the PET films 10 from the PET film unwinding shaft 210, and the cutter 240 cuts off the PET films 10 of a preset length. Specifically, the moving assembly comprises a servo motor and a moving belt 220, the moving belt 220 is connected with an output end of the servo motor, the first film drawing clamp 230 is connected with the moving belt 220, and the moving belt 220 is driven by the servo motor to move so as to drive the first film drawing clamp 230 to move.

Preferably, the material taking mechanism 200 further comprises two PET film pressing blocks 250, the two PET film pressing blocks 250 are connected with the rack, the cutter 240 is located between the two PET film pressing blocks 250, and the two PET film pressing blocks 250 can ensure that the PET film 10 is kept flat in the process of cutting the PET film 10 by the cutter 240. Further, a plurality of pressing rollers for the PET film 10 are further included between the PET film pressing block 250 and the PET film unwinding shaft 210 for ensuring the flatness of the PET film 10.

Preferably, feed mechanism 300 includes first driving motor, first vacuum chuck 310 and vacuum generator, and first driving motor's output is connected with first vacuum chuck 310, and first vacuum chuck 310 communicates with vacuum generator, cuts good predetermined length at PET film 10 after, vacuum generator produces the negative pressure, makes first vacuum chuck 310 adsorb PET film 10, then first driving motor alright overturn with driving first vacuum chuck 310, makes PET film 10 attached on the upper surface of electric core 20.

Optionally, as shown in fig. 1 and fig. 2, the feeding mechanism 300 further includes a second film pulling clamp 260, the second film pulling clamp 260 is connected to the rack, and after the first vacuum chuck 310 is turned over, the second film pulling clamp 260 clamps the right end of the PET film 10, so as to prevent the PET film 10 from sagging due to gravity, and ensure that the upper surface of the battery cell 20 is attached more smoothly.

Optionally, the film pasting mechanism includes a first compression roller mechanism 400, the first compression roller mechanism 400 is connected with the rack, the first compression roller mechanism 400 includes a first driving assembly, a first compression roller 420 and a second compression roller 430, the first compression roller 420 and the second compression roller 430 are both connected with the output end of the first driving assembly, the first compression roller 420 and the second compression roller 430 are respectively located right above the left and right end faces of the battery cell, the first driving assembly is used for driving the first compression roller 420 to attach the PET film 10 on the left end face of the battery cell 20, and the second compression roller 430 is driven to attach the PET film 10 on the right end face of the battery cell 20, after the attachment of the left and right ends of the PET film 10 is completed, due to the effect of tension, the PET film 10 on the upper surface of the battery cell 20 can also be attached to the upper surface of the battery cell 20 flatly.

Further, the first driving assembly includes a first horizontal cylinder 411, a first vertical cylinder 412 and a second vertical cylinder 413, the first horizontal cylinder 411 is disposed in the rack, the first vertical cylinder 412 and the second vertical cylinder 413 are both connected to an output end of the first horizontal cylinder 411, an output end of the first vertical cylinder 412 is provided with a first compression roller 420, an output end of the second vertical cylinder 413 is provided with a second compression roller 430, the first compression roller 420 and the second compression roller 430 are respectively located at left and right sides of the battery cell 20 through the first horizontal cylinder 411, then the first vertical cylinder 412 and the second vertical cylinder 413 move synchronously, and the first compression roller 420 and the second compression roller 430 respectively compress the PET film 10 on the left end face and the right end face of the battery cell 20.

Optionally, the film pasting mechanism further includes a push plate mechanism 500, the push plate mechanism 500 includes a positioning clamp 510 and a push plate 520, the push plate 520 is slidably connected to the bottom of the positioning clamp 510, the positioning clamp 510 is used for clamping the battery cell 20, after the battery cell 20 is clamped by the positioning clamp 510, the negative pressure chuck 100 on the substrate releases pressure, the battery cell is released from being bound, the battery cell 20 is fixed by the positioning clamp 510, and at this time, the push plate 520 pushes out the PET film 10 to be attached to the lower surface of the battery cell 20.

As shown in fig. 1, the push plate mechanism 500 further includes a first linear moving assembly 530, the first linear moving assembly 530 includes a first horizontal cylinder 411 and a support 531, an output end of the first horizontal cylinder 411 is connected to the support 531, the positioning clamp 510 is disposed on the support 531, and the first horizontal cylinder 411 is configured to drive the positioning clamp 510 to approach the electrical core 20 so as to clamp the electrical core 20.

Optionally, the first linear moving assembly 530 further includes a first slide rail and a first slider, the first slide rail is connected to the frame, the first slider is connected to the first slide rail in a sliding manner, and the bracket 531 is connected to the first slider, so that it can be ensured that the positioning clamp 510 is more stable in the moving process.

Optionally, the push plate mechanism 500 further includes a first clamping cylinder, the first clamping cylinder is disposed on the support 531, an output end of the first clamping cylinder is connected to the positioning clamp 510, and the positioning clamp 510 can be opened and closed by movement of the first clamping cylinder.

Optionally, the film pasting mechanism further includes a second pressing roller mechanism 600, the second pressing roller mechanism 600 is connected to the rack, and the second pressing roller mechanism 600 is disposed at one end of the battery cell 20 opposite to the positioning clip 510, the second pressing roller mechanism 600 includes a second driving component and a third pressing roller 610, the third pressing roller 610 is connected to an output end of the second driving component, after the push plate 520 attaches the PET film 10 to the lower surface of the battery cell 20, the second driving component can drive the third pressing roller 610 to attach the end, to which the PET film 10 is attached, to the left end surface of the battery cell 20, so that the end and the tail end of the PET film 10 are connected to the left end surface of the battery cell 20 in an overlapping manner to complete the film pasting operation of the battery cell 20.

Optionally, the second driving assembly comprises a second linear moving assembly and a third vertical cylinder, an output end of the second linear moving assembly is connected with the third vertical cylinder, a third pressing roller 610 is arranged at an output end of the third vertical cylinder, the second linear moving assembly drives the third pressing roller 610 to move in the left-right direction, and the third vertical cylinder can drive the third pressing roller 610 to move up and down. Specifically, the second linear moving assembly may be a third horizontal cylinder, an output end of the third horizontal cylinder is connected to a third vertical cylinder, the third vertical cylinder is disposed at an output end of the third horizontal cylinder in a vertical direction, and the third pressing roller 610 is connected to an output end of the third vertical cylinder so as to realize left and right movement and up and down movement of the third pressing roller 610. More specifically, the second driving assembly further comprises a second sliding rail and a second sliding block, the second sliding rail is connected with the rack, the second sliding block is connected with the second sliding rail in a sliding mode, and the third vertical cylinder is connected with the second sliding block, so that the third pressing roller 610 is more stable when moving in the left-right direction. Optionally, in other embodiments, both the first linear moving assembly 530 and the second linear moving assembly may be a lead screw nut assembly, which is a mature technical means in the field, and the specific structure and working principle of the lead screw nut assembly are not described in detail.

Specifically, as shown in fig. 2 and fig. 3, the working process of the battery cell film attaching device provided in this embodiment is as follows:

firstly, place the base plate with the battery on, it is fixed through negative pressure suction cup 100, first draw the PET membrane 10 that membrane clamp 230 draws a plurality of lengths, cutter 240 cuts out the PET membrane 10 of presetting length, first vacuum chuck 310 on feed mechanism 300 will preserve the PET membrane 10 of length and adsorb this moment, overturn through first vacuum chuck 310 of first driving motor drive, the second draws the right-hand member that membrane clamp 260 presss from both sides tight PET membrane 10, first vacuum chuck 310 releases PET membrane 10 this moment, with PET membrane 10 attached on the upper surface of electric core 20.

Secondly, the first driving motor drives the first lead screw nut assembly to move, so that the first compression roller 420 and the second compression roller 430 move to the left end and the right end of the battery cell 20 respectively, and the first vertical cylinder 412 and the second vertical cylinder 413 drive the first compression roller 420 and the second compression roller 430 to move downwards respectively, so that the PET film 10 is attached to the left end and the right end of the battery cell 20 respectively.

And thirdly, the second linear moving assembly drives the positioning clamp 510 to move leftwards, so that the positioning clamp 510 clamps the battery, the negative pressure sucker 100 on the substrate loosens the battery, and the push plate 520 firstly slides leftwards along the bottom of the battery core 20, so that the PET film 10 is attached to the lower surface of the battery core 20.

Finally, the second driving assembly drives the third pressing roller 610 to move rightward to approach the battery cell 20, so that the third pressing roller 610 is tightly attached to the outer side of the PET film 10 on the lower surface of the battery cell 20, and then the second driving assembly drives the third pressing roller 610 to move leftward and then upward, so that the tail end of the PET film 10 is attached to the left side of the battery cell 20 and is overlapped with the head end of the PET film 10, and the whole film attaching process is completed.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Electric core pad pasting device, its characterized in that includes:

a frame on which a substrate is disposed, the substrate being configured to secure a cell (20);

the material taking mechanism (200) is arranged on the rack, and the material taking mechanism (200) is configured to cut the PET film (10) with a preset length;

the feeding mechanism (300) is arranged on one side, close to the material taking mechanism (200), of the substrate, and the feeding mechanism (300) is configured to adsorb, turn and convey the PET film (10) with a preset length to the upper surface of the battery cell (20);

the film pasting mechanism is configured to surround and stick the PET film (10) with a preset length on the outer wall of the battery cell (20).

2. The battery core film laminating device according to claim 1, wherein the material taking mechanism (200) comprises a PET film unreeling shaft (210), a moving assembly, a first film drawing clamp (230) and a cutter (240), a plurality of circles of PET film (10) are reeled on the PET film unreeling shaft (210), the first film drawing clamp (230) is connected with a moving end of the moving assembly, the moving assembly drives the first film drawing clamp (230) to move so as to draw the PET film (10) out of the PET film unreeling shaft (210) for a plurality of lengths, and the cutter (240) cuts the PET film (10) with a preset length.

3. The battery core film laminating device of claim 2, wherein the material taking mechanism (200) further comprises two PET film pressing blocks (250), and the cutter (240) is located between the two PET film pressing blocks (250).

4. The cell lamination device according to claim 2, wherein the feeding mechanism (300) comprises a first driving motor, a first vacuum chuck (310), and a vacuum generator, an output end of the first driving motor is connected to the first vacuum chuck (310), the first vacuum chuck (310) is communicated with the vacuum generator, the vacuum generator is configured to generate a negative pressure on a surface of the first vacuum chuck (310) to adsorb the cut PET film (10) with the preset length, and the first driving motor is configured to drive the first vacuum chuck (310) to turn over so as to convey the PET film (10) with the preset length to an upper surface of the cell (20).

5. The cell lamination device according to claim 4, wherein the feeding mechanism (300) further comprises a second lamination clamp (260), the second lamination clamp (260) is connected with the frame, and the second lamination clamp (260) is configured to clamp an end of the PET film (10) opposite to the first lamination clamp (230) after the first vacuum chuck (310) is turned over.

6. The cell film attaching device according to claim 1, wherein the film attaching mechanism comprises a first pressing roller mechanism (400), the first pressing roller mechanism (400) comprises a first driving assembly, a first pressing roller (420) and a second pressing roller (430), the first pressing roller (420) and the second pressing roller (430) are both connected to an output end of the first driving assembly, the first driving assembly is configured to drive the first pressing roller (420) to attach the PET film (10) to the end surface of the cell (20) close to the feeding mechanism (300), and the second pressing roller (430) is driven to attach the PET film (10) to the end surface of the cell (20) far away from the feeding mechanism (300).

7. The cell film laminating device of claim 6, wherein the first driving assembly comprises a first horizontal cylinder (411), a first vertical cylinder (412) and a second vertical cylinder (413), the first horizontal cylinder (411) is disposed on the rack, the first vertical cylinder (412) and the second vertical cylinder (413) are both connected to an output end of the first horizontal cylinder (411), an output end of the first vertical cylinder (412) is provided with the first pressing roller (420), and an output end of the second vertical cylinder (413) is provided with the second pressing roller (430).

8. The cell film pasting device according to claim 1, wherein the film pasting mechanism further comprises a push plate mechanism, the push plate mechanism comprises a positioning clip (510) and a push plate (520), the push plate (520) is slidably connected with the bottom of the positioning clip (510), the positioning clip (510) is used for clamping the cell (20), and the push plate (520) is used for attaching the PET film (10) to the lower surface of the cell (20).

9. The cell lamination device according to claim 8, wherein the push plate mechanism (500) further comprises a first linear moving assembly (530), the first linear moving assembly (530) comprises a second horizontal cylinder and a bracket (531), an output end of the second horizontal cylinder is connected with the bracket (531), the positioning clamp (510) is disposed on the bracket (531), and the second horizontal cylinder is configured to drive the positioning clamp (510) to approach the cell (20) to clamp on the cell (20).

10. The cell lamination device according to claim 9, wherein the first linear motion assembly (530) further comprises a first slide rail and a first slider, the first slide rail is connected to the frame, the first slider is slidably connected to the first slide rail, and the bracket (531) is connected to the first slider.

11. The cell film laminating device of claim 9, wherein the push plate mechanism (500) further comprises a first clamping cylinder, the first clamping cylinder is disposed on the support (531), and an output end of the first clamping cylinder is connected to the positioning clamp (510).

12. The cell lamination device according to any one of claims 1 to 11, wherein the lamination mechanism further comprises a second pressing roller mechanism (600), the second pressing roller mechanism (600) comprises a second driving assembly and a third pressing roller (610), the third pressing roller (610) is connected to an output end of the second driving assembly, and the second driving assembly is configured to drive the third pressing roller (610) to attach the PET film (10) to the end surface of the cell (20) close to the feeding mechanism (300).

13. The cell film laminating device of claim 12, wherein the second driving assembly comprises a second linear moving assembly and a third vertical cylinder, an output end of the second linear moving assembly is connected with the third vertical cylinder, and an output end of the third vertical cylinder is provided with the third pressing roller (610).