Lithium battery film coating equipment with deviation rectifying mechanism

Abstract

The application discloses a lithium battery film coating equipment with a deviation rectifying mechanism and belongs to the technical field of lithium battery film coating. The equipment comprises a workbench, a mechanical arm installed on the workbench, a first transverse movement module arranged below the mechanical arm, a second transverse movement module arranged on the side of the first transverse movement module, a supporting side plate installed on the workbench, a film feeding mechanism installed on the supporting side plate, a vertical linear module installed on the back of the supporting side plate, a connecting arm installed on the guide rail of the vertical linear module and a clamping cylinder installed on the end of the connecting arm away from the vertical linear module. The lithium battery film coating equipment with the deviation rectifying mechanism can clamp and feed the required film-coated battery through the clamping jaw, and the central deviation rectifying part is arranged on the clamping jaw. In the process that the clamping jaw drives the movement of the battery cell, the automatic central deviation rectifying of the battery cell can be realized, and the situation that the film body is wrapped too wide on one side and too narrow on the other side during the clamping jaw feeding can be prevented.

Description

Technical Field

[0001] This invention relates to the field of lithium battery packing technology, specifically to a lithium battery packing device with a correction mechanism. Background Technology

[0002] In the manufacturing process of lithium batteries, after the bare battery cells have completed core processes such as winding or stacking, their exterior needs to be insulated and protected to ensure the safety, stability and durability of the battery during use. Therefore, in order to improve the coating efficiency of lithium batteries, corresponding coating equipment is usually used.

[0003] For example, CN221820371U discloses a coating device suitable for lithium battery coating, which includes a conveyor roller, a pusher for moving the battery cell on the conveyor roller, and a coating mechanism for performing coating operations on the battery cell. It also includes a retaining device for locking the position of the battery cell on the conveyor roller when the coating mechanism coats the rear side of the battery cell. The retaining device is disposed on the conveyor roller and includes a blocking bar and a drive device for driving the blocking bar to move. When locked, the blocking bar abuts against the front side of the battery cell.

[0004] The existing technologies mentioned above have the following technical problems: When the existing lithium batteries are coated, the cells are automatically pushed during transportation. However, during transportation, the cells may become misaligned due to equipment vibration or wear. If the cells are not centered, the film may wrap one side too wide and the other side too narrow when the grippers are feeding. After heat shrinking, this will cause problems such as wrinkles, edge curling, and uneven film stretching. The narrow side may not be able to completely wrap the edge of the cell, resulting in the cell exposing the substrate.

[0005] Therefore, we propose a lithium battery packing device with a correction mechanism to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a lithium battery coating equipment with a correction mechanism to solve the problem mentioned in the background art. In the current lithium battery coating process, the battery cells are automatically pushed during transportation. However, during transportation, the battery cells may become misaligned due to equipment vibration or wear. If the battery cells are not centered, the film may wrap one side too wide and the other side too narrow when the grippers are feeding. After heat shrinking, this will cause problems such as wrinkles, edge curling, and uneven film stretching. The narrow side may not be able to completely wrap the edge of the battery cell, resulting in the battery cell exposing the substrate.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a lithium battery packing device with a correction mechanism, comprising a worktable and a robotic arm mounted on the worktable. A first transverse module is disposed below the robotic arm, and a second transverse module is disposed on the side of the first transverse module. A support side plate is mounted on the worktable, and a film feeding mechanism is mounted on the support side plate. A vertical linear module is mounted on the back of the support side plate, and a connecting arm is mounted on the guide rail of the vertical linear module. A clamping gas is mounted on the end of the connecting arm away from the vertical linear module. The first transverse module has a moving base mounted on its guide rail, and a rotary cylinder mounted on the moving base. A clamping component is mounted on the side of the rotary cylinder. The second transverse module has a moving plate mounted on its moving plate, and a centering and correction chuck is mounted on the moving plate. The centering and correction chuck is used to clamp and feed the battery cells on the clamping component. A coating roller is mounted on the support side plate, and the coating roller is used to attach the film to the battery cells.

[0008] Preferably, the limiting clamp and the film fixing clamp are located on the same vertical line, and the film material on the film feeding mechanism passes through the film fixing clamp. The limiting clamp and the film fixing clamp are used to clamp the film material.

[0009] By adopting the above technical solution, the film material can be clamped by the upward movement of the limiting clamp, and the clamped film material can be pulled down after the limiting clamp moves down.

[0010] Preferably, the centering and correction clamp includes a limiting seat mounted on the movable plate, and a driving cylinder is fixed to the side of the limiting seat. A pressing block is installed on the telescopic end of the driving cylinder. A pressure seat is provided on the side of the pressing block. The pressure seat is connected to the limiting seat by a spring. A positioning clamp is fixed to the side of the pressure seat.

[0011] By adopting the above technical solution, the spring can be used to reset and rebound the pressure seat after it moves on the limit seat.

[0012] Preferably, the side of the extrusion block is in contact with the pressure seat in the initial state, and the contact surfaces of both the extrusion block and the pressure seat are set as inclined surfaces, and the pressure seat and the limiting seat are slidably connected.

[0013] By adopting the above technical solution, when the extrusion block moves, it can use the inclined side to extrude and push the pressure seat.

[0014] Preferably, an adjusting plate is installed on the positioning clamp, and the adjusting plate forms an elastic telescopic structure with the positioning clamp via an auxiliary spring. A piston plate is installed on the adjusting plate, and the lower end of the piston plate is connected to the adjusting plate via a reset spring. The cavity formed by the lower upper surface of the piston plate and the interior of the adjusting plate is connected to the interior of the piston plate via an air suction pipe. Adsorption holes are provided on the surface of the piston plate.

[0015] By adopting the above technical solution, when the piston plate moves downward, the airflow inside the piston plate can be drawn in using the suction pipe.

[0016] Preferably, the upper end of the piston plate is hollow, and the piston plate can slide on the adjustment plate and the suction pipe. The side of the piston plate that contacts the battery cell has a plurality of adsorption holes evenly distributed, and the upper end of the piston plate protrudes outward on the adjustment plate.

[0017] By adopting the above technical solution, the upper end face of the piston plate protrudes outward on the adjustment plate. When the positioning clamp holds the battery cell, the piston plate can first move on the adjustment plate.

[0018] Preferably, the upper end of the limiting seat is provided with a transmission gear, and the side of the transmission gear is provided with a linkage rack fixed to the support side plate. The middle part of the transmission gear is keyed to a guide screw, and a pressure frame is installed on the guide screw. The lower end of the pressure frame is provided with a movable plate, and a control rack is fixed on the movable plate. The side of the control rack is meshed with a linkage gear, and a correction rod is fixed on the middle rotating shaft of the linkage gear. The middle rotating shaft of the linkage gear is installed on a transfer block. The transfer block is connected to the movable plate through a first spring. The transfer block is installed on the inner side of the mounting base, and the mounting base is fixed to the side of the limiting seat. The transfer block is connected to the limiting seat through a second spring.

[0019] By adopting the above technical solution, when the transmission gear moves and meshes with the linkage rack on the support side plate, the transmission gear can drive the guide screw to rotate synchronously.

[0020] Preferably, the pressure frame can slide on the guide rod at the upper end of the limiting seat, and the contact surface between the pressure frame and the movable plate in the initial state is set as an inclined side. The first spring stiffness coefficient connecting the movable plate and the transfer block is less than the second spring stiffness coefficient connecting the transfer block and the side of the limiting seat.

[0021] By adopting the above technical solution, the spring constant of the first spring is smaller than that of the second spring. When the movable plate moves, the first spring will deform first.

[0022] Preferably, the correction rod is perpendicular to the limiting seat in the initial state, and the control rack at the end of the correction rod can rotate on the transfer block. A rotatable roller is provided on the side of the correction rod that contacts the battery cell.

[0023] By adopting the above technical solution, the correction rod is perpendicular to the limit seat in the initial state, so as not to affect the entry of the battery cell between the two positioning plates.

[0024] Preferably, the first lateral movement module, the second lateral movement module, and the third lateral movement module have the same structure, and the third lateral movement module is also equipped with a moving base, a rotary cylinder, and a clamping component.

[0025] Compared with the prior art, the beneficial effects of the present invention are: the lithium battery coating equipment with the correction mechanism clamps and feeds the battery to be coated by the gripper, and at the same time, a centering correction component is set on the gripper. During the process of the gripper driving the cell to move, the cell can be automatically centered and corrected, preventing the cell from being out of center and the film from being wrapped too wide on one side and too narrow on the other side when the gripper feeds the material. 1. The membrane material can be clamped during the wrapping process by the membrane clamping part and the limiting clamp, thereby ensuring the stability of the membrane material. At the same time, after the extrusion block moves, it can use the inclined side to squeeze the pressure seat. After the pressure seat moves, it can clamp the battery cell through the side positioning clamp, thereby ensuring the stability of the battery cell. 2. The downward movement of the pressure frame can squeeze the movable plate. After the movable plate is pressed, it can drive the linkage gear and the correction rod to rotate through the control rack. As the movable plate continues to move, it can push the transfer block to move synchronously. By using the movement of the transfer block and the correction rod, the battery cell between the positioning clamps can be centered and corrected, so as to avoid the battery cell being out of center and the membrane being wrapped too wide on one side and too narrow on the other side. 3. The downward movement of the piston plate increases the size of the cavity formed by the lower surface of the piston plate and the inside of the adjusting plate. At this time, the air intake pipe can draw in the airflow inside the piston plate, creating a negative pressure effect in the adsorption holes on the piston plate and adsorbing and fixing the battery cell. This prevents the battery cell from moving relative to the adjusting plate when it is pushed to the center, thus avoiding wear on the surface of the battery cell. Attached Figure Description

[0026] Figure 1 This is a frontal perspective view of the present invention; Figure 2 This is a schematic diagram of the movable seat and rotary cylinder structure of the present invention; Figure 3 This is a schematic diagram of the film feeding mechanism and film cutting blade structure of the present invention; Figure 4 For the present invention Figure 1 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the second transverse module and the moving plate structure of the present invention; Figure 6 This is a schematic diagram of the transmission gear and guide screw structure of the present invention; Figure 7 This is a schematic diagram of the extrusion block and pressure seat structure of the present invention; Figure 8 This is a schematic diagram of the adjusting plate and piston plate structure of the present invention; Figure 9 For the present invention Figure 8 Enlarged structural diagram at point B; Figure 10 This is a schematic diagram of the control rack and linkage gear structure of the present invention; Figure 11 This is a schematic diagram of the limiting clamp and membrane clamping part of the present invention.

[0027] In the diagram: 1. Workbench; 2. Robotic arm; 3. First transverse module; 4. Second transverse module; 5. Support side plate; 6. Film feeding mechanism; 7. Vertical linear module; 8. Connecting arm; 9. Clamping cylinder; 10. Limiting chuck; 11. Power cylinder; 12. Film cutting blade; 13. Coating roller; 14. Third transverse module; 15. Moving seat; 16. Rotary cylinder; 17. Clamping component; 18. Moving plate; 19. Limiting seat; 20. Drive cylinder; 21. Extrusion. 21. Block; 22. Pressure seat; 23. Positioning clamp; 24. Adjusting plate; 25. Auxiliary spring; 26. Piston plate; 27. Return spring; 28. Suction pipe; 29. ​​Adsorption hole; 30. Transmission gear; 31. Linkage rack; 32. Guide screw; 33. Pressure frame; 34. Movable plate; 35. Control rack; 36. Linkage gear; 37. Correction rod; 38. First spring; 39. Mounting seat; 40. Second spring; 41. Transfer block; 42. Membrane clamping part. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1: Please refer to Figures 1-11In existing lithium battery coating processes, the cells are automatically pushed during transport. However, during transport, vibration or wear of the equipment may cause the cells to become misaligned. If the cells are not centered, the film may wrap one side too wide and the other side too narrow during feeding by the grippers. After heat shrinking, this can lead to problems such as wrinkles, edge curling, and uneven film stretching. The narrow side may not completely wrap the edge of the cell, resulting in exposed substrate. To solve this technical problem, this embodiment discloses the following technical solution: a lithium battery coating device with a correction mechanism, including a worktable 1 and a robotic arm 2 mounted on the worktable 1. A first transverse module 3 is arranged below the robotic arm 2. A second transverse module 4 is provided on the side of the transverse module 3. A support side plate 5 is installed on the worktable 1, and a film feeding mechanism 6 is installed on the support side plate 5. A vertical linear module 7 is installed on the back of the support side plate 5, and a connecting arm 8 is installed on the guide rail of the vertical linear module 7. A clamping cylinder 9 is installed at the end of the connecting arm 8 away from the vertical linear module 7, and a limit chuck 10 is installed at the telescopic end of the clamping cylinder 9. A power cylinder 11 is installed on the support side plate 5, and a film cutting blade 12 is installed at the telescopic end of the power cylinder 11. A moving seat 15 is installed on the guide rail of the first transverse module 3, and a rotary cylinder 16 is installed on the moving seat 15. A clamping component 17 is installed on the side of the rotary cylinder 16. A movable plate 18 is mounted on the second transverse module 4, and a centering and correcting chuck is mounted on the movable plate 18. The centering and correcting chuck is used to clamp and feed the battery cell on the clamping component 17. A coating roller 13 is mounted on the support side plate 5. The coating roller 13 is used to attach the film material to the battery cell. The limiting chuck 10 and the film fixing clamping part 42 are located on the same vertical line, and the film material on the film feeding mechanism 6 passes through the film fixing clamping part 42. The limiting chuck 10 and the film fixing clamping part 42 are used to clamp the film material. The centering and correcting chuck includes a limiting seat 19 mounted on the movable plate 18, and a drive cylinder 20 is fixed on the side of the limiting seat 19. An extrusion block 21 is mounted on the extension end of the drive cylinder 20. The side of the extrusion block 21... A pressure seat 22 is provided, which is connected to a limit seat 19 by a spring. A positioning clamp 23 is fixed to the side of the pressure seat 22. The side of the extrusion block 21 is in contact with the pressure seat 22 in the initial state, and the contact surfaces of the extrusion block 21 and the pressure seat 22 are both set as inclined surfaces. The pressure seat 22 and the limit seat 19 are slidably connected. An adjustment plate 24 is installed on the positioning clamp 23, and the adjustment plate 24 forms an elastic telescopic structure with the positioning clamp 23 through an auxiliary spring 25. The first transverse module 3, the second transverse module 4 and the third transverse module 14 have the same structure, and the third transverse module 14 is also equipped with a moving seat 15, a rotary cylinder 16 and a clamping component 17.

[0030] When it is necessary to coat the battery cell, the gripper on the robotic arm 2 grasps the battery cell and moves it to the clamping component 17 on the first lateral movement module 3 for clamping. Then, the first lateral movement module 3 controls the clamping component 17 to move towards the second lateral movement module 4, so that the battery cell is moved between the two positioning clamping plates 23. Then, by opening the drive cylinder 20, the extrusion block 21 can move, thereby extruding the pressure seat 22. The pressure seat 22 moves the positioning clamp 23 to clamp the battery cell. Meanwhile, the vertical linear module 7 controls the connecting arm 8 to move upwards. After the connecting arm 8 moves upwards, the limiting clamp 10 on the clamping cylinder 9 clamps the film material on the film feeding mechanism 6. After clamping the film material, the vertical linear module 7 controls the connecting arm 8 to move downwards, pulling the clamped film material down through the limiting clamp 10. Then, the second transverse module 4 controls the moving plate 18 to move towards the film material, causing one end of the battery cell clamped on the positioning clamp 23 to carry the film material through the coating roller 13. The coating roller 13 then coats the film material onto the surface of the battery cell. When one end of the battery cell passes through the coating roller 13, the clamping component 17 on the third transverse module 14 clamps the coated end of the battery cell. At this time, the drive cylinder 20 retracts, controlling the positioning clamp 23 to contact the clamping of the battery cell. The third transverse module 14 controls the moving seat 15 to move, so that the entire battery cell passes through the coating roller 13, thereby completing the coating of the battery cell surface. After the coating is completed, the power cylinder 11 controls the cutting blade 12 to move, and the cutting blade 12 cuts the film material. During the coating process, the film material is synchronously clamped by the film fixing clamp 42 and the limiting clamp 10, thereby ensuring the stability of the film material.

[0031] A transmission gear 30 is provided at the upper end of the limiting seat 19, and a linkage rack 31 fixed to the support side plate 5 is provided on the side of the transmission gear 30. A guide screw 32 is keyed to the middle of the transmission gear 30, and a pressure frame 33 is mounted on the guide screw 32. A movable plate 34 is provided on the lower side of the pressure frame 33, and a control rack 35 is fixed on the movable plate 34. A linkage gear 36 is meshed on the side of the control rack 35, and a correction rod 37 is fixed on the central rotating shaft of the linkage gear 36. The central rotating shaft of the linkage gear 36 is mounted on a transfer block 41. The transfer block 41 is connected to the movable plate 34 through a first spring 38. The transfer block 41 is mounted on the mounting seat 39. Inside, the mounting base 39 is fixed to the side of the limiting base 19. The transfer block 41 is connected to the limiting base 19 via the second spring 40. The pressure frame 33 can slide on the guide rod at the upper end of the limiting base 19. The contact surface between the pressure frame 33 and the movable plate 34 in the initial state is set as an inclined side. The stiffness coefficient of the first spring 38 connecting the movable plate 34 and the transfer block 41 is less than the stiffness coefficient of the second spring 40 connecting the transfer block 41 and the side of the limiting base 19. The correction rod 37 is perpendicular to the limiting base 19 in the initial state. The control rack 35 at the end of the correction rod 37 can rotate on the transfer block 41. A rotatable roller is provided on the side of the correction rod 37 that contacts the battery cell.

[0032] When the second transverse module 4 moves the moving plate 18 toward the coating roller 13, the transmission gear 30 engages with the linkage rack 31. The linkage rack 31 then causes the transmission gear 30 to rotate, which in turn causes the guide screw 32 to rotate. The rotation of the guide screw 32 causes the threaded pressure frame 33 to move downward. The downward movement of the pressure frame 33 then presses the movable plate 34, causing it to move toward the transfer block 41. After the movable plate 34 moves, the control rack 35 causes the linkage gear 36 to rotate. The rotation of the linkage gear 36 causes the correction rod 37 to rotate 90°, making the correction rod 37 parallel to the side of the limit seat 19. Then, the pressure frame 33 continues to move downward. After the movable plate 34 is squeezed, the first spring 38 has been compressed to its limit. At this time, the movable plate 34 can drive the transfer block 41 to move synchronously after it continues to move. The movement of the transfer block 41 can make the correction rod 37 move towards the limit seat 19. The movement of the correction rod 37 can center and correct the battery cell between the positioning clamps 23. After the positioning clamps 23 move relative to each other, the adjustment plate 24 clamps the battery cell. At the same time, the adjustment plate 24 can move on the positioning clamps 23. Thus, the movement of the adjustment plate 24 is used to cooperate with the centering and correction of the battery cell. The correction rod 37 is equipped with a rotatable roller. When the clamping component 17 on the third transverse module 14 clamps and pulls the battery cell, the rotation of the roller can reduce the friction with the side of the battery cell.

[0033] Example 2: The technical content disclosed in this example is a further improvement based on Example 1 described above, such as... Figures 7-9 As shown, the following technical contents are disclosed in this embodiment: a piston plate 26 is installed on the adjusting plate 24, and the lower end of the piston plate 26 is connected to the adjusting plate 24 through a return spring 27. The cavity formed by the lower upper surface of the piston plate 26 and the interior of the adjusting plate 24 is connected to the interior of the piston plate 26 through the suction pipe 28. The surface of the piston plate 26 is provided with adsorption holes 29. The interior of the upper end of the piston plate 26 is set as a hollow structure, and the piston plate 26 can slide on the adjusting plate 24 and the suction pipe 28. Multiple adsorption holes 29 are evenly distributed on the side of the piston plate 26 that contacts the battery cell. The upper end of the piston plate 26 protrudes outward on the adjusting plate 24.

[0034] After the positioning clamp 23 moves relative to clamp the battery cell, the piston plate 26 can first contact the battery cell. At this time, the piston plate 26 can move on the adjusting plate 24 after being pressed. After the piston plate 26 moves downward, the cavity formed by its lower upper surface and the inside of the adjusting plate 24 becomes larger. At this time, the cavity draws in the airflow inside the piston plate 26 through the suction pipe 28. When the air inside the piston plate 26 is drawn away, a negative pressure is generated at the adsorption hole 29 on its surface. The negative pressure of the adsorption hole 29 is used to adsorb and fix the battery cell, so as to avoid the battery cell and the adjusting plate 24 from sliding relative to each other when the correction rod 37 pushes the battery cell, which would cause wear on the surface of the battery cell during centering and correction.

[0035] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lithium battery packing device with a correction mechanism, comprising a workbench (1) and a robotic arm (2) mounted on the workbench (1), wherein a first transverse module (3) is provided below the robotic arm (2), and a second transverse module (4) is provided on the side of the first transverse module (3), a support side plate (5) is mounted on the workbench (1), and a film feeding mechanism (6) is mounted on the support side plate (5), a vertical straight module (7) is mounted on the back of the support side plate (5), and a connecting arm (8) is mounted on the guide rail of the vertical straight module (7), a clamping cylinder (9) is mounted on the end of the connecting arm (8) away from the vertical straight module (7), and a limit clamp (10) is mounted on the telescopic end of the clamping cylinder (9), a power cylinder (11) is mounted on the support side plate (5), and a film cutting blade (12) is mounted on the telescopic end of the power cylinder (11), characterized in that: A movable seat (15) is installed on the guide rail of the first transverse module (3), and a rotary cylinder (16) is installed on the movable seat (15). A clamping component (17) is installed on the side of the rotary cylinder (16). A movable plate (18) is installed on the second transverse module (4), and a centering correction chuck is installed on the movable plate (18). The centering correction chuck is used to clamp the battery cell on the clamping component (17). A coating roller (13) is installed on the support side plate (5). The coating roller (13) is used to attach the film to the battery cell.

2. The lithium battery packing equipment with a correction mechanism according to claim 1, characterized in that: The limiting clamp (10) and the film fixing clamp (42) are located on the same vertical line, and the film material on the film feeding mechanism (6) passes through the film fixing clamp (42). The limiting clamp (10) and the film fixing clamp (42) are used to clamp the film material.

3. The lithium battery packing equipment with a correction mechanism according to claim 1, characterized in that: The centering and correction clamp includes a limiting seat (19) mounted on a movable plate (18), and a driving cylinder (20) is fixed on the side of the limiting seat (19). A pressing block (21) is installed on the telescopic end of the driving cylinder (20). A pressure seat (22) is provided on the side of the pressing block (21). The pressure seat (22) is connected to the limiting seat (19) by a spring. A positioning clamp (23) is fixed on the side of the pressure seat (22).

4. A lithium battery packing device with a correction mechanism according to claim 3, characterized in that: The side of the extrusion block (21) is in contact with the pressure seat (22) in the initial state, and the contact surfaces of both the extrusion block (21) and the pressure seat (22) are set as inclined surfaces. The pressure seat (22) and the limiting seat (19) are slidably connected.

5. A lithium battery packing device with a correction mechanism according to claim 4, characterized in that: An adjusting plate (24) is installed on the positioning clamp (23), and the adjusting plate (24) forms an elastic telescopic structure with the positioning clamp (23) through an auxiliary spring (25). A piston plate (26) is installed on the adjusting plate (24), and the lower end of the piston plate (26) is connected to the adjusting plate (24) through a reset spring (27). The cavity formed by the lower upper surface of the piston plate (26) and the inside of the adjusting plate (24) is connected to the inside of the piston plate (26) through an air suction pipe (28). An adsorption hole (29) is opened on the surface of the piston plate (26).

6. A lithium battery packing device with a correction mechanism according to claim 5, characterized in that: The upper end of the piston plate (26) is hollow, and the piston plate (26) can slide on the adjustment plate (24) and the suction pipe (28). The side of the piston plate (26) that contacts the battery cell has a plurality of adsorption holes (29) evenly distributed. The upper end of the piston plate (26) protrudes outward on the adjustment plate (24).

7. A lithium battery packing device with a correction mechanism according to claim 6, characterized in that: The upper end of the limiting seat (19) is provided with a transmission gear (30), and the side of the transmission gear (30) is provided with a linkage rack (31) fixed on the support side plate (5). The middle part of the transmission gear (30) is keyed with a guide screw (32), and a pressure frame (33) is installed on the guide screw (32). The lower side of the pressure frame (33) is provided with a movable plate (34), and a control rack (35) is fixed on the movable plate (34). The side of the control rack (35) is meshed with the control rack (35). A linkage gear (36) is connected, and a correction rod (37) is fixed on the central shaft of the linkage gear (36). The central shaft of the linkage gear (36) is mounted on a transfer block (41). The transfer block (41) is connected to the movable plate (34) by a first spring (38). The transfer block (41) is mounted on the inner side of the mounting base (39). The mounting base (39) is fixed on the side of the limiting seat (19). The transfer block (41) is connected to the limiting seat (19) by a second spring (40).

8. A lithium battery packing device with a correction mechanism according to claim 7, characterized in that: The pressure frame (33) can slide on the guide rod at the upper end of the limiting seat (19), and the contact surface between the pressure frame (33) and the movable plate (34) in the initial state is set as an inclined side. The stiffness coefficient of the first spring (38) connecting the movable plate (34) and the transfer block (41) is less than the stiffness coefficient of the second spring (40) connecting the transfer block (41) and the side of the limiting seat (19).

9. A lithium battery packing device with a correction mechanism according to claim 8, characterized in that: The correction rod (37) is perpendicular to the limit seat (19) in the initial state, and the control rack (35) at the end of the correction rod (37) can rotate on the transfer block (41). The side of the correction rod (37) that contacts the battery cell is provided with a rotatable roller.

10. A lithium battery packing device with a correction mechanism according to claim 1, characterized in that: The first transverse module (3), the second transverse module (4) and the third transverse module (14) have the same structure, and the third transverse module (14) is also equipped with a moving seat (15), a rotary cylinder (16) and a clamping component (17).

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