Battery cell top sealing edge folding and curing equipment and processing method thereof

Abstract

The invention relates to the technical field of battery packaging, and discloses a battery cell top sealing edge folding and curing device and a processing method thereof.The battery cell top sealing edge folding and curing device comprises a machine base, a rotary table is rotationally arranged on the machine base, and a plurality of positioning jigs are arranged on the rotary table; a feeding mechanism, a battery cell pre-folding mechanism, a gluing mechanism and a folding and curing mechanism are sequentially arranged in the rotating direction of the rotary table, the battery cell pre-folding mechanism comprises a pre-folding pressing assembly and a pre-folding rotating assembly, and the pre-folding pressing assembly comprises a pressing air cylinder arranged above the positioning jig and a pre-folding jacking block connected to the output end of the pressing air cylinder; a pre-folding inclined face is arranged on the outer side of the bottom of the pre-folding top block, and the pre-folding rotating assembly comprises a moving module, a rotating driving module connected to the output end of the moving module and a horizontal rotating block connected to the output end of the rotating driving module. And after the pre-folding top block is pressed downwards to abut against the top sealing edge of the battery cell, the horizontal rotating block rotates to enable the top sealing edge of the battery cell to be attached to the pre-folding inclined surface to realize pre-folding.

Description

Technical Field

[0001] The present invention relates to the technical field of battery packaging, and in particular to a battery cell top edge sealing folding and curing device and a processing method thereof. Background Art

[0002] Soft-pack lithium-ion batteries are widely used because their shells use relatively thin and soft aluminum-plastic film, which has the advantages of easy processing and high energy density compared with traditional metal-shell lithium-ion batteries.

[0003] The aluminum-plastic film used in the existing soft-pack lithium-ion battery shell is usually a composite film, that is, it includes an insulating protective layer, a metal layer and an insulating heat-sealing layer, and the metal layer is located between the insulating protective layer and the insulating heat-sealing layer. In the lithium-ion battery packaging process, the lithium-ion battery is first completely wrapped with the aluminum-plastic film, and the pole ear extends from the top sealing edge of the lithium-ion battery. Then the aluminum-plastic film is sealed by heat sealing to fuse the insulating heat-sealing layer of the aluminum-plastic film together to form a sealing edge, and then the excess sealing edge is cut and the excess aluminum-plastic film is removed to obtain a soft-pack lithium-ion battery cell. The battery cell of this design has a relatively large overall structural size of the battery assembly due to the large extension area of ​​the top sealing edge, which is not conducive to the centralized storage and transportation of batteries. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a cell top edge sealing folding and curing device and a processing method thereof, thereby saving battery storage space.

[0005] The technical solution of the present invention is as follows: on the one hand, the present invention discloses a battery cell top edge sealing folding and curing device, comprising a machine base, a turntable is rotatably arranged on the machine base, a plurality of positioning jigs are arranged on the turntable, a feeding mechanism, a battery cell pre-folding mechanism, a gluing mechanism and a folding and curing mechanism are sequentially arranged along the rotation direction of the turntable, the battery cell pre-folding mechanism comprises a pre-folding pressing assembly and a pre-folding rotating assembly, the pre-folding pressing assembly comprises a pressing cylinder arranged above the positioning jig and a pre-folding top block connected to the output end of the pressing cylinder, the pre-folding top A pre-folding inclined surface is arranged on the outer side of the bottom of the block, the pre-folding rotating assembly comprises a moving module, a rotating driving module connected to the output end of the moving module and a horizontal rotating block connected to the output end of the rotating driving module, the horizontal rotating block is arranged correspondingly on the front side of the positioning fixture, the pre-folding top block is used to press down against the top edge seal of the battery cell, the horizontal rotating block is used to realize pre-folding by rotating the top edge seal of the battery cell to fit the pre-folding inclined surface, the gluing mechanism is used to glue the pre-folding groove, and the folding and curing mechanism is used to realize the folding and curing of the top edge seal of the battery cell.

[0006] It can be seen from the above scheme that the feeding mechanism is used to realize the feeding of the battery cell, and the battery cell pre-folding mechanism is used to bend the top sealing edge of the battery cell end to complete the pre-folding, so as to facilitate the subsequent gluing after the pre-folding groove is formed, avoid the overflow of glue at the subsequent workstation, improve the folding and curing quality of the battery cell top sealing edge, and drive the gluing mechanism to dispense glue in the pre-folding groove after pre-folding. The folding and curing mechanism is used to fold the pre-folded top sealing edge toward the end face of the battery cell when performing the glue dispensing and curing action. The folding pressing component and the folding rotating component realize the top sealing of the battery cell through simultaneous action. The pre-folding of the top sealing edge of the battery cell is performed, and the downward pressure cylinder is used to drive the pre-folding top block to be pressed down until it contacts the upper surface of the top sealing edge of the battery cell. The horizontal rotating block is used to rotate the top sealing edge to be close to the pre-folding inclined surface, thereby pressing the top sealing edge from a horizontal state to an inclined state, so that a pre-folding groove is formed on the top sealing edge, thereby completing the pre-folding of the top sealing edge. The present invention folds and glues the top sealing edge of the battery cell to make the packaging size of the battery cell smaller. When the battery cell packaged using the structure of the present invention is stored and transported, the overall structural size of the battery assembly is reduced, the space occupancy is reduced, and the space utilization rate is improved.

[0007] The feeding mechanism includes a conveyor belt module and a clamping module arranged above the conveyor belt module, a side push limit assembly is arranged on the conveyor belt module, the side push limit assembly includes a push cylinder, an adjusting block and a side push block, a limit adjustment groove is arranged on the adjusting block, the side push block is arranged correspondingly above the conveyor belt module, one side of the side push block is connected to the output end of the push cylinder through the adjusting block, and the other side is provided with a fixed block, the fixed block is arranged on the outer side of the conveyor belt module, an open through groove is arranged on the side push block, the clamping module includes a vertical frame, a transverse linear module arranged on the vertical frame, a lifting cylinder connected to the output end of the transverse linear module and a material picking nozzle connected to the output end of the lifting cylinder, and the material picking nozzle is connected to the bottom of the lifting cylinder by installing a limit plate. It can be seen that the conveyor belt module is used to realize the transmission and loading of battery cells, the clamping module is used to clamp the battery cells from the conveyor belt module to the turntable, the measuring and pushing limit module is used, the side walls and top walls of the opening slot are used to limit the battery cell products, the material picking nozzle is used to realize the suction and loading of battery cells, the transverse linear module is used to drive the battery cells on the material picking nozzle to move horizontally, and the lifting cylinder is used to drive the battery cells of the material picking nozzle to move up and down to realize material picking and placing.

[0008] The moving module includes a first linear module and a lifting linear module connected to the output end of the first linear module, the rotating drive module includes a rotating mounting plate, a driving motor connected to the rotating mounting plate, a driving wheel connected to the output end of the driving motor, a driven wheel driven by the driving wheel through a conveyor belt, and a cross frame, the driven wheel is connected to the outside of the cross frame, one side of the horizontal rotating block passes through the side wall of the cross frame and is coaxially connected to the driven wheel, the other side of the horizontal rotating block is connected to the other side wall of the cross frame through a bearing, and a clamping block is provided on the horizontal rotating block. It can be seen that the first linear module is used to drive the forward and backward feeding movement, the lifting linear module is used to drive the horizontal rotating block on the rotating driving module to move up and down, and the rotating wheel group drives the driven wheel to rotate through the driving motor, thereby realizing the rotation of the horizontal rotating block.

[0009] The positioning fixture includes a mounting plate, a limit block group arranged on the mounting plate, a mounting seat, an elastic column arranged on the mounting seat, a spring sleeved on the elastic column, and a rotating member rotatably connected to the bottom of the mounting seat, the turntable is provided with a lifting motor under the corresponding lower part of the rotating member, and a lifting block is provided at the output end of the lifting motor, the limit block group includes a fixed limit block and a movable limit block respectively arranged on both sides of the mounting plate, the movable limit block is connected to the mounting seat through a connecting block, the mounting plate is provided with a limit adjustment groove adapted to the connecting block, one end of the elastic column is inserted into the mounting seat and connected to the connecting block, and the other end of the elastic column is sleeved with the spring. It can be seen that the lifting motor is used to lift the rotating member to drive the movable limit block to move away from the battery cell in the limit adjustment groove so as to release the limit on the battery cell, which is convenient for taking and placing the battery cell, and the spring sleeved on the elastic column is used to realize the resetting of the rotating member, which is convenient for clamping the battery cell.

[0010] The folding and curing mechanism includes a curing frame and a UV curing lamp box arranged on the curing frame. The folding and curing mechanism is correspondingly provided with a spreading component and a pushing and folding component. The pushing and folding component is correspondingly arranged on the front side of the spreading component. The pushing and folding component includes a pushing cylinder, a pneumatic clamp connected to the output end of the pushing cylinder, a vertical block connected to the output end of the pneumatic clamp, and a pushing block. The pushing block is fixed on the top of the pneumatic clamp. The pushing block is located between the two groups of vertical blocks. The pneumatic clamp is horizontally arranged. The length of the pushing block is adapted to the length of the top sealing edge of the battery cell. It can be seen that the UV curing lamp box irradiates ultraviolet light downward to cure the glue in the pre-folding groove of the top edge seal, and the pushing component is used to push away the pole ear at the end of the top edge seal during curing to avoid obstruction when the glue in the pre-folding groove of the top edge seal is irradiated and cured. The present invention forms a bending portion by pre-folding the top edge seal of the battery cell and then applies glue in the pre-folding groove. At the same time, the folding and curing mechanism pushes the pre-folded top edge seal to the end face of the battery cell for curing, thereby realizing the folding and curing packaging of the top edge seal of the battery cell. The pneumatic clamp drives the vertical blocks on both sides through the opening and closing action to limit and tighten the side edges on both sides of the top edge seal when the propulsion block is pushed forward. The length of the propulsion block is adapted to the length of the top edge seal of the battery cell. The propulsion cylinder is used to drive the propulsion block to advance when curing the glue in the pre-folding groove of the top edge seal of the battery cell. When curing with the light, the inner side surface of the pre-folded top edge seal is synchronously moved close to the end of the battery cell to achieve close adhesion, thereby completing the folding and curing action.

[0011] The pushing assembly includes a mounting stand, a downward cylinder arranged on the mounting stand, a pushing cylinder connected to the output end of the downward cylinder, and a lever connected to the output end of the pushing cylinder, wherein the lever is connected to the output end of the lever cylinder through a connecting rod, and a pressing cylinder is arranged on the mounting stand, and a pressure block is connected to the output end of the pressing cylinder. It can be seen that the pressure block is used to press the side of the battery cell when pushing away the tabs, and the pushing cylinder is used to drive the lever to push away the tabs at the end of the battery cell to avoid obstruction when the glue in the pre-folding groove is cured.

[0012] The battery cell pre-folding mechanism also includes a mounting frame, a first pressing cylinder vertically connected to the mounting frame, a downward pressure adjustment cylinder, a second pressing cylinder horizontally connected to the output end of the downward pressure adjustment cylinder, a first pressing block connected to the output end of the first pressing cylinder, and a second pressing block connected to the output end of the second pressing cylinder. It can be seen that the first pressing cylinder is used to press down and tighten the upper surface of the battery cell through the first pressing block when folding and curing the top edge of the battery cell, and the second pressing cylinder is used to tighten the end of the battery cell through the second pressing block.

[0013] The curing rack is also provided with a material unloading assembly, which includes a transverse unloading module, a descending cylinder connected to the output end of the transverse unloading module, a rotating cylinder connected to the output end of the descending cylinder, and a material unloading suction nozzle connected to the output end of the rotating cylinder.

[0014] On the other hand, the present invention discloses a processing method for a cell top edge sealing folding and curing device, the method comprising the following steps: S2, the clamping module clamps and loads the battery cell on the conveyor belt module, and places the battery cell on the positioning fixture of the loading station for limiting, so that the top edge of the battery cell is exposed from the turntable; S1. The turntable drives the battery cell to rotate to the pre-folding station, and the downward pressure cylinder drives the pre-folding top block to move downward to the top sealing edge of the battery cell. The side wall of the pre-folding top block contacts the end face of the battery cell, and the bottom of the pre-folding top block presses against the upper surface of the top sealing edge of the battery cell. The rotating wheel group drives the horizontal rotating block to rotate. After the horizontal rotating block contacts the top sealing edge of the battery cell, it drives the top sealing edge of the battery cell to press against the pre-folding inclined surface through rotation, and the top sealing edge of the battery cell is pressed from a horizontal state to an inclined state, so that a pre-folding groove is formed on the top sealing edge of the battery cell, thereby realizing the pre-folding of the top sealing edge of the battery cell; S3, the turntable drives the battery cell to rotate to the gluing station, and the gluing mechanism glues the pre-folded groove on the top sealing edge of the battery cell; S4, the turntable drives the battery cell to rotate to the folding and curing station, the pushing assembly drives the lever to push the tabs at the ends of the battery cell outwards through the pushing cylinder, the lever pushes the tabs to be parallel to the battery cell, and the UV curing light box irradiates the glue in the pre-folding groove on the top sealing edge of the battery cell to solidify it; S5. When the curing action is performed in S4, the folding assembly is pushed forward to drive the pushing block through the pushing cylinder to horizontally push the pre-folded top sealing edge of the battery cell, so that the inner side surface of the top sealing edge of the battery cell is tightly fitted with the end surface of the battery cell. At this time, the pneumatic clamp drives the vertical stop block to press and limit the side edges on both sides of the end of the battery cell, thereby completing the folding and curing of the top sealing edge of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 is a top view of the present invention; Figure 3 It is a structural diagram of the feeding mechanism; Figure 4 It is a structural schematic diagram of the positioning fixture; Figure 5 It is a partial structural schematic diagram of the battery cell pre-folding mechanism; Figure 6 It is another partial structural schematic diagram of the battery cell pre-folding mechanism; Figure 7 It is a partial structural schematic diagram of the present invention; Figure 8 It is a schematic diagram of the structure of the components; Fig. 9 It is another partial structural schematic diagram of the present invention; Fig.10 It is a schematic diagram of the structure of the battery cell; Fig.11 It is a schematic diagram of the pre-folded structure of the battery cell; Fig.12 It is a schematic diagram of the structure of the battery cell after folding and solidification. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0017] like Figures 1 to 12 As shown, the present invention is a battery cell top edge sealing folding and curing device and a processing method thereof. On the one hand, the present invention discloses a battery cell top edge sealing folding and curing device, including a machine base 1, a turntable 2 is rotatably arranged on the machine base 1, a plurality of positioning fixtures 3 are arranged on the turntable 2, and a feeding mechanism 4, a battery cell pre-folding mechanism 5, a gluing mechanism 6 and a folding and curing mechanism 7 are sequentially arranged along the rotation direction of the turntable 2. The battery cell pre-folding mechanism 5 includes a pre-folding pressing component and a pre-folding rotating component. The pre-folding pressing component includes a pressing cylinder 51 arranged above the positioning fixture 3 and a pre-folding top block connected to the output end of the pressing cylinder 51. 52, a pre-folding inclined surface 521 is arranged on the outer side of the bottom of the pre-folding top block 52, the pre-folding rotating assembly includes a moving module, a rotating driving module connected to the output end of the moving module and a horizontal rotating block 53 connected to the output end of the rotating driving module, the horizontal rotating block 53 is arranged correspondingly on the front side of the positioning fixture 3, the pre-folding top block 52 is used to press down against the top edge of the battery cell, the horizontal rotating block 53 is used to realize pre-folding by rotating the top edge of the battery cell to fit the pre-folding inclined surface 521, the gluing mechanism 6 is used to glue the pre-folding groove, and the folding and curing mechanism 7 is used to realize the folding and curing of the top edge of the battery cell.

[0018] In this embodiment, the battery cell pre-folding mechanism 5 pre-folds the top edge into a 45° angle, the top edge of the battery cell 100 is provided with a battery cell top edge 110, and the two sides of the battery cell top edge 110 are provided with side edges 120, and the battery cell top edge 110 is provided with a pole ear 130, and the gluing mechanism includes a transverse frame, a transverse linear module arranged on the transverse frame, a lifting glue cylinder connected to the output end of the transverse linear module, and a glue dispenser connected to the output end of the lifting glue cylinder, and a glue dispensing head is provided at the bottom of the glue dispenser.

[0019] The feeding mechanism 4 includes a conveyor belt module 41 and a clamping module 42 arranged above the conveyor belt module 41. The conveyor belt module 41 is provided with a side push limit assembly, and the side push limit assembly includes a push cylinder 43, an adjustment block 44 and a side push block 45. The adjustment block 44 is provided with a limit adjustment groove 311. The side push block 45 is correspondingly arranged above the conveyor belt module 41. One side of the side push block 45 is connected to the output end of the push cylinder 43 through the adjustment block 44, and the other side is provided with a fixed stop block 46. The fixed stop block 46 is arranged at the conveyor belt module 41. On the outside, the side push block 45 is provided with an open through slot 451, the clamping module 42 includes a vertical frame 421, a transverse linear module 422 arranged on the vertical frame 421, a lifting cylinder 423 connected to the output end of the transverse linear module 422, and a material picking nozzle 424 connected to the output end of the lifting cylinder 423, the material picking nozzle 424 is connected to the bottom of the lifting cylinder 423 by installing a limit plate, and a guide limit block 411 is provided at the end of the conveyor belt module 41, and a slope 412 is provided on the guide limit block 411, and the slope 412 is arranged obliquely upward along the conveying direction.

[0020] The moving module includes a first linear module 54 and a lifting linear module 55 connected to the output end of the first linear module 54, the rotating drive module includes a rotating mounting plate 56, a driving motor 571 connected to the rotating mounting plate 56, a driving wheel 572 connected to the output end of the driving motor 571, a driven wheel 574 driven by the driving wheel 572 through a conveyor belt 573, and a cross frame 58, the driven wheel 574 is connected to the outside of the cross frame 58, one side of the horizontal rotating block 53 passes through the side wall of the cross frame 58 and is coaxially connected to the driven wheel 574, the other side of the horizontal rotating block 53 is connected to the other side wall of the cross frame 58 through a bearing, and a tightening block 531 is provided on the horizontal rotating block 53.

[0021] The positioning fixture 3 includes a mounting plate 31, a limit block group 32 arranged on the mounting plate 31, a mounting seat 33, an elastic column 34 arranged on the mounting seat 33, a spring 35 sleeved on the elastic column 34 and a rotating member 36 rotatably connected to the bottom of the mounting seat 33, the turntable 2 is provided with a jacking motor 37 corresponding to the lower side of the rotating member 36, and a jacking block 371 is provided at the output end of the jacking motor 37, the limit block group 32 includes a fixed limit block 321 and a movable limit block 322 respectively arranged on both sides of the mounting plate 31, the movable limit block 322 is connected to the mounting seat 33 through a connecting block 323, and a limit adjustment groove 311 adapted to the connecting block 323 is provided on the mounting plate 31, one end of the elastic column 34 is inserted into the mounting seat 33 and connected to the connecting block 323, and the other end of the elastic column 34 is sleeved with the spring 35. In this embodiment, one end of the rotating member 36 is correspondingly arranged above the lifting block 371 , and the other end is in contact with the inner side of the connecting block 323 . The center of the rotating member 36 is rotatably connected to the mounting seat 33 .

[0022] The pushing-apart assembly 8 includes a mounting frame 81, a downward cylinder 82 arranged on the mounting frame 81, a pushing-apart cylinder 83 connected to the output end of the downward cylinder 82, and a pushing rod 84 connected to the output end of the pushing-apart cylinder 83. The pushing rod 84 is connected to the output end of the pushing rod 84 cylinder through a connecting rod 85. A pressing cylinder 88 is arranged on the mounting frame 81, and a pressure block is connected to the output end of the pressing cylinder 88.

[0023] The folding and curing mechanism 7 includes a curing frame 71 and a UV curing lamp box 73 arranged on the curing frame 71. The base 1 is provided with the pushing and folding component on the side of the folding and curing mechanism 7. The pushing and folding component is correspondingly arranged on the front side of the pushing and opening component 8. The pushing and folding component includes a pushing cylinder 91, a pneumatic clamp 92 connected to the output end of the pushing cylinder 91, a vertical stopper 93 connected to the output end of the pneumatic clamp 92, and a pushing block 94. The pushing block 94 is fixed on the top of the pneumatic clamp 92. The pushing block 94 is located between the two groups of vertical stops 93. The pneumatic clamp 92 is horizontally arranged. The length of the pushing block 94 is adapted to the length of the top sealing edge of the battery cell.

[0024] The battery cell pre-folding mechanism also includes a mounting frame 11, a first pressing cylinder 12 vertically connected to the mounting frame 11, a downward pressing adjustment cylinder 13, a second pressing cylinder 14 horizontally connected to the output end of the downward pressing adjustment cylinder 13, a first pressing block 121 connected to the output end of the first pressing cylinder 12, and a second pressing block 141 connected to the output end of the second pressing cylinder 14.

[0025] The curing frame 71 is also provided with a material unloading assembly, which includes a transverse unloading module 15, a descending cylinder 16 connected to the output end of the transverse unloading module 15, a rotating cylinder 17 connected to the output end of the descending cylinder 16, and a material unloading nozzle 18 connected to the output end of the rotating cylinder 17.

[0026] On the other hand, the present invention also provides a processing method for a cell top edge sealing folding and curing device, the method comprising the following steps: S1, the clamping module 42 clamps and loads the battery cell on the conveyor belt module 41, and places the battery cell 100 on the positioning fixture 3 of the loading station for limiting, so that the top sealing edge 110 of the battery cell is exposed from the turntable 2; S2, the turntable 2 drives the battery cell 100 to rotate to the pre-folding station, the downward pressure cylinder 51 drives the pre-folding top block 52 to move down the battery cell top edge seal 110, the side wall of the pre-folding top block 52 contacts the end face of the battery cell 100, and the bottom of the pre-folding top block 52 presses against the upper surface of the battery cell top edge seal 110, the rotating wheel group 57 drives the horizontal rotating block 53 to rotate, and the horizontal rotating block 53 contacts the battery cell top edge seal 110 and drives the battery cell top edge seal 110 to press against the pre-folding inclined surface 521 through rotation, and the battery cell top edge seal 110 is pressed from a horizontal state to an inclined state, so that a pre-folding groove is formed on the battery cell top edge seal 110, so as to realize the pre-folding of the battery cell top edge seal; S3, the turntable 2 drives the battery cell 100 to rotate to the gluing station, and the gluing mechanism 6 glues the pre-folded groove on the top sealing edge 110 of the battery cell; S4, the turntable 2 drives the battery cell to rotate to the folding and curing station, the pushing assembly 8 drives the lever 84 through the pushing cylinder 83 to push the tab 130 at the end of the battery cell outward, the lever 84 pushes the tab 130 to be parallel to the battery cell 100, and the UV curing lamp box 73 irradiates the glue in the pre-folding groove on the top edge 110 of the battery cell to cure it; S5. When the curing action is performed in S4, the folding assembly 9 is pushed and folded by the propulsion cylinder 91 to drive the propulsion block 94 to horizontally push the pre-folded top seal 110 of the battery cell, so that the inner side surface of the top seal 110 of the battery cell is tightly fitted with the end surface of the battery cell 100. At this time, the pneumatic clamp 92 drives the vertical stop block 93 to press and limit the side edges 120 on both sides of the end of the battery cell, thereby completing the folding and curing of the top seal of the battery cell 100.

[0027] Finally, it should be emphasized that the above is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cell top edge sealing folding and curing device, comprising a machine base (1), a turntable (2) rotatably arranged on the machine base (1), a plurality of positioning jigs (3) arranged on the turntable (2), characterized in that: A feeding mechanism (4), a battery cell pre-folding mechanism (5), a gluing mechanism (6) and a folding and curing mechanism (7) are sequentially arranged along the rotation direction of the turntable (2); the battery cell pre-folding mechanism (5) comprises a pre-folding pressing assembly and a pre-folding rotating assembly; the pre-folding pressing assembly comprises a pressing cylinder (51) arranged above the positioning fixture (3) and a pre-folding top block (52) connected to the output end of the pressing cylinder (51); a pre-folding inclined surface (521) is arranged on the outer side of the bottom of the pre-folding top block (52); and the pre-folding rotating assembly comprises a moving module. , a rotating drive module connected to the output end of the mobile module and a horizontal rotating block (53) connected to the output end of the rotating drive module, the horizontal rotating block (53) being arranged correspondingly on the front side of the positioning fixture (3), the pre-folding top block (52) being used to press down against the top sealing edge of the battery cell, the horizontal rotating block (53) being used to achieve pre-folding by rotating the top sealing edge of the battery cell to fit the pre-folding inclined surface (521), the gluing mechanism (6) being used to apply glue to the pre-folding groove, and the folding and curing mechanism (7) being used to achieve folding and curing of the top sealing edge of the battery cell.

2. The battery cell top edge sealing folding and curing device according to claim 1, characterized in that: The feeding mechanism (4) comprises a conveyor belt module (41) and a clamping module (42) arranged above the conveyor belt module (41); the conveyor belt module (41) is provided with a side push limit assembly, the side push limit assembly comprises a push cylinder (43), an adjustment block (44) and a side push block (45); the adjustment block (44) is provided with a limit adjustment groove (311); the side push block (45) is arranged above the conveyor belt module (41); one side of the side push block (45) is connected to the output end of the push cylinder (43) through the adjustment block (44); the other side A fixed stopper (46) is provided, and the fixed stopper (46) is provided on the outer side of the conveyor belt module (41); an open through slot (451) is provided on the side push block (45); the clamping module (42) comprises a stand (421), a transverse linear module (422) provided on the stand (421), a lifting cylinder (423) connected to the output end of the transverse linear module (422), and a material taking suction nozzle (424) connected to the output end of the lifting cylinder (423); the material taking suction nozzle (424) is connected to the bottom of the lifting cylinder (423) by installing a limit plate.

3. The battery cell top edge sealing folding and curing device according to claim 1, characterized in that: The moving module comprises a first linear module (54) and a lifting linear module (55) connected to the output end of the first linear module (54); the rotating drive module comprises a rotating mounting plate (56), a driving motor (571) connected to the rotating mounting plate (56), a driving wheel (572) connected to the output end of the driving motor (571), a driven wheel (574) driven by the driving wheel (572) through a conveyor belt (573), and a cross frame (58); the driven wheel (574) is connected to the outside of the cross frame (58); one side of the horizontal rotating block (53) passes through a side wall of the cross frame (58) and is coaxially connected to the driven wheel (574); the other side of the horizontal rotating block (53) is connected to the other side wall of the cross frame (58) through a bearing; and a pressing block (531) is provided on the horizontal rotating block (53).

4. The battery cell top edge sealing folding and curing device according to claim 1, characterized in that: The positioning fixture (3) comprises a mounting plate (31), a limit block group (32) arranged on the mounting plate (31), a mounting seat (33), an elastic column (34) arranged on the mounting seat (33), a spring (35) sleeved on the elastic column (34), and a rotating member (36) rotatably connected to the bottom of the mounting seat (33); the turntable (2) is provided with a lifting motor (37) at a corresponding lower portion of the rotating member (36); a lifting block (371) is provided at an output end of the lifting motor (37); and the limit block group (32) is provided on the mounting seat (33). The block group (32) comprises a fixed limit block (321) and a movable limit block (322) respectively arranged on both sides of the mounting plate (31); the movable limit block (322) is connected to the mounting seat (33) via a connecting block (323); a limit adjustment groove (311) adapted to the connecting block (323) is arranged on the mounting plate (31); one end of the elastic column (34) is inserted into the mounting seat (33) and connected to the connecting block (323); the other end of the elastic column (34) is sleeved with the spring (35).

5. The battery cell top edge sealing folding and curing device according to claim 3, characterized in that: The folding and curing mechanism (7) comprises a curing frame (71) and a UV curing lamp box (73) arranged on the curing frame (71); the folding and curing mechanism is correspondingly provided with a spreading component (8) and a pushing and folding component (9); the pushing and folding component is correspondingly arranged on the front side of the spreading component (8); the pushing and folding component (9) comprises a pushing cylinder (91), a pneumatic clamp (92) connected to the output end of the pushing cylinder (91), a vertical stopper (93) connected to the output end of the pneumatic clamp (92), and a pushing block (94); the pushing block (94) is fixed to the top of the pneumatic clamp (92); the pushing block (94) is located between two groups of the vertical stoppers (93); the pneumatic clamp (92) is arranged horizontally; and the length of the pushing block (94) is adapted to the length of the top sealing edge of the battery cell.

6. The battery cell top edge sealing folding and curing device according to claim 5, characterized in that: The pushing assembly (8) comprises a mounting frame (81), a downward cylinder (82) arranged on the mounting frame (81), a pushing cylinder (83) connected to the output end of the downward cylinder (82), and a pushing rod (84) connected to the output end of the pushing cylinder (83); the pushing rod (84) is connected to the output end of the cylinder of the pushing rod (84) via a connecting rod (85); a pressing cylinder (88) is arranged on the mounting frame (81), and a pressure block is connected to the output end of the pressing cylinder (88).

7. The battery cell top edge sealing folding and curing device according to claim 1, characterized in that: The battery cell pre-folding mechanism further comprises a mounting frame (11), a first pressing cylinder (12) vertically connected to the mounting frame (11), a downward pressing adjustment cylinder (13), a second pressing cylinder (14) horizontally connected to the output end of the downward pressing adjustment cylinder (13), a first pressing block (121) connected to the output end of the first pressing cylinder (12), and a second pressing block (141) connected to the output end of the second pressing cylinder (14).

8. The battery cell top edge sealing folding and curing device according to claim 5, characterized in that: The curing frame (71) is also provided with a material unloading assembly, which comprises a transverse material unloading module (15), a descending cylinder (16) connected to the output end of the transverse material unloading module (15), a rotating cylinder (17) connected to the output end of the descending cylinder (16), and a material unloading suction nozzle (18) connected to the output end of the rotating cylinder (17).

9. A processing method, applied to the battery cell top edge sealing folding and curing device according to claim 6, the method comprising the following steps: S1, the clamping module (42) clamps and loads the battery cell on the conveyor belt module (41), and places the battery cell (100) on the positioning fixture (3) of the loading station for limiting the position, so that the top sealing edge (110) of the battery cell is exposed from the turntable (2); S2, the turntable (2) drives the battery cell (100) to rotate to the pre-folding station, the downward pressure cylinder (51) drives the pre-folding top block (52) to move downward to the battery cell top sealing edge (110), the side wall of the pre-folding top block (52) contacts the end surface of the battery cell (100), the bottom of the pre-folding top block (52) presses against the upper surface of the battery cell top sealing edge (110), the rotating wheel group (57) drives the horizontal rotating block (53) to rotate, and after the horizontal rotating block (53) contacts the battery cell top sealing edge (110), it drives the battery cell top sealing edge (110) to press against the pre-folding inclined surface (521), and presses the battery cell top sealing edge (110) from a horizontal state to an inclined state, so that a pre-folding groove is formed on the battery cell top sealing edge (110), thereby achieving pre-folding of the battery cell top sealing edge; S3, the turntable (2) drives the battery cell (100) to rotate to the gluing station, and the gluing mechanism (6) applies glue to the pre-folded groove on the top sealing edge (110) of the battery cell; S4, the turntable (2) drives the battery cell to rotate to the folding and curing station, the pushing assembly (8) drives the lever (84) to push the tab (130) at the end of the battery cell outward through the pushing cylinder (83), the lever (84) pushes the tab (130) to be parallel to the battery cell (100), and the UV curing lamp box (73) irradiates the glue in the pre-folding groove on the top sealing edge (110) of the battery cell to cure it; S5. When the curing action is performed in S4, the folding assembly (9) is pushed forward through the propulsion cylinder (91) to drive the propulsion block (94) to horizontally push the pre-folded top sealing edge (110) of the battery cell, so that the inner side surface of the top sealing edge (110) of the battery cell is tightly fitted with the end surface of the battery cell (100). At this time, the pneumatic clamp (92) drives the vertical stop block (93) to press and limit the side edges (120) on both sides of the end of the battery cell, thereby completing the folding and curing of the top sealing edge of the battery cell (100).

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