Multi-station production line for assembling lithium batteries

Abstract

The invention relates to the technical field of lithium battery production, in particular to a multi-station production line for lithium battery assembly, which comprises a processing seat, a rotating shaft rotationally connected to the processing seat and three conveyor belts for conveying positive plates, diaphragms and negative plates respectively, and a conveying mechanism comprises three mounting frames in one-to-one correspondence with the conveyor belts. The installation frame is fixedly arranged on the machining base and arranged on the lower side of the conveying belt, two guide plates are fixedly arranged on the installation frame, a push plate is slidably connected into the two guide plates, a compression spring is fixedly arranged between the push plate and the installation frame, and the device further comprises a locking assembly, an unlocking assembly and a reset assembly. The material conveying mechanism comprises six supporting rods fixedly connected to the rotating shaft, the supporting rods are arranged in a circumferential array mode, a material conveying box is rotationally connected to each supporting rod, and a feeding port and a discharging port are formed in each material conveying box. The device further comprises a discharging mechanism. According to the invention, non-stop loading and unloading can be realized.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery production, and in particular to a multi-station production line for lithium battery assembly. Background Art

[0002] Lithium battery is a battery that uses lithium metal or lithium alloy as the negative electrode material and non-aqueous electrolyte solution. It is widely used in modern industrial products such as mobile phones, laptops, electric vehicles, and is an important product that is indispensable to modern human life. The processing of lithium batteries goes through the following steps: preparation of positive and negative electrode slurry, coating, drying and rolling, slitting, cell assembly, packaging, injection, discharge test, detection and sorting.

[0003] The patent document with publication number "CN114447409B" and name "A lithium battery cell assembly and modification device" discloses a lithium battery cell assembly and modification device, which respectively conveys the battery cathode sheet, isolation membrane and anode sheet to the storage table in the adjacent lifting frame through the feeding conveyor belt of the feeding mechanism, and when the lifting frame moves to the discharge rack, the anode sheet is pushed from the storage table to the discharge rack, and then falls from the drop chute to the discharge conveyor belt, and then repeats the above steps to push the isolation membrane above the anode sheet, and then push the cathode sheet above the isolation membrane. The stacking process can be carried out quickly and uninterruptedly, and multiple stations cooperate with each other, the stacking is accurate and there will be no errors, and the stacking effect is better.

[0004] However, in actual production, whether the device is transporting materials to the lifting frame or transporting materials in the lifting frame to the discharging frame, that is, loading and unloading, the lifting frame needs to be stopped and rotated again after loading and unloading are completed. The lifting frame needs to stop six times for one rotation, resulting in low processing efficiency and serious restrictions on production capacity, which cannot meet the production needs of the enterprise. Summary of the invention

[0005] The purpose of the present invention is to provide a multi-station production line for lithium battery assembly to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions: A multi-station production line for lithium battery assembly, comprising a processing seat, a rotating shaft rotatably connected to the processing seat, and three conveyor belts respectively for conveying positive electrode sheets, separators and negative electrode sheets, including a feeding mechanism, a material transfer mechanism and a discharging mechanism. The feeding mechanism transfers raw materials to the material transfer mechanism, and the discharging mechanism discharges the materials in the material transfer mechanism; the feeding mechanism includes three mounting frames corresponding to the conveyor belts one by one. The mounting frames are fixedly arranged on the processing seat. The mounting frames are arranged below the conveyor belts. Two guiding plates are fixedly arranged on the mounting frames. A pushing plate is slidably connected between the two guiding plates. A compression spring is fixedly arranged between the pushing plate and the mounting frame. It further includes a locking component for locking the pushing plate, an unlocking component for unlocking the pushing plate, and a resetting component for re-locking the pushing plate; the material transfer mechanism includes six support rods fixedly connected to the rotating shaft. The support rods are arranged in a circumferential array. A material transfer box is rotatably connected to each support rod. The material transfer box is respectively provided with a feeding port and a discharging port; the discharging mechanism includes a connecting frame fixedly arranged on the support rod. One end of the connecting frame is rotatably connected with a connecting rod. Two ends of the connecting rod are respectively fixedly connected with a transmission gear and a transmission component. The transmission gear meshes with an internal gear on the processing seat. The internal gear is incompletely arranged.

[0007] Further, the transmission component includes a worm fixedly arranged at the end of the connecting rod. A worm gear is meshed with the worm. The worm gear is fixedly connected to the material transfer box through a sleeve. The worm gear and the sleeve are coaxially arranged with the support rod.

[0008] Further, the width of the feeding port is greater than the distance between the two guiding plates.

[0009] Further, the locking component includes a locking block rotatably arranged on the guiding plate. The locking block is semicircular. One end of the locking block passes through the mounting frame and is connected to the unlocking component. A torsion spring for resetting is arranged between the locking block and the mounting frame.

[0010] Further, the unlocking component includes a first unlocking rod fixedly connected to the end of the locking block. A second unlocking rod is fixedly arranged on the material transfer box. The second unlocking rod rotates to drive the first unlocking rod to rotate, so as to unlock the locking of the locking block on the pushing plate.

[0011] Further, the resetting component includes a pushing rod fixedly arranged on the material transfer box. A first connecting rod is fixedly connected to the pushing plate. The first connecting rod is slidably connected to the mounting frame. And a second connecting rod is fixedly connected to the end of the first connecting rod. An inclined surface is arranged at the end of the second connecting rod. The pushing rod rotates to drive the pushing plate to move towards the compression spring through the inclined surface.

[0012] Further, it further includes a laminated component. The laminated component includes a carrier table slidably disposed in the material transfer box. A storage bin for storing materials is formed between the carrier table and the inner wall of the material transfer box. A self-compression unit is disposed between the support rod and the carrier table.

[0013] Further, the self-compression unit includes a fixed disk fixedly disposed at the end of the support rod. The fixed disk is disposed in a first slot on the carrier table. A limiting rod is also fixedly disposed on the fixed disk. The limiting rod is slidably connected in a sliding slot on the carrier table. The sliding slot is a closed slot connected end to end.

[0014] Further, the sliding slot includes a first limiting slot and a second limiting slot that are connected. When the limiting rod is slidably connected in the first limiting slot, the carrier table moves in a direction away from the feed inlet. When the limiting rod is slidably connected in the second limiting slot, the carrier table moves in a direction close to the feed inlet.

[0015] In the above technical solution, the beneficial effects of a multi-station production line for lithium battery assembly provided by the present invention are as follows: 1. Through the provided material conveying mechanism, the conveyor belt transports the materials between two guiding plates on the mounting rack. When the material transfer box rotates to the mounting rack, the material transfer box automatically releases the restriction on the pushing plate through the unlocking component. Under the reset action of the compression spring, the pushing plate drives the raw materials to move quickly and is transported into the material transfer box from the feed inlet, thereby realizing non-stop feeding, effectively compressing time. And the material transfer box enables the pushing plate to be locked again by the locking component through the reset component for the next feeding, thus realizing a complete feeding cooperation.

[0016] 2. Through the provided unloading mechanism, when the material transfer box sequentially receives and stacks three kinds of raw materials and then rotates to the internal gear, the driving gear drives the connecting rod to rotate. The rotation of the connecting rod drives the material transfer box to rotate through the transmission component. The rotation of the material transfer box causes the materials in the material transfer box to pour out from the discharge port and can be transported to the next process by a conveyor belt arranged at this position, thereby realizing non-stop automatic unloading. And after the material transfer box rotates, it resets to perform the feeding and unloading of the next cycle.

[0017] 3. Through the provided material conveying mechanism and unloading mechanism, non-stop feeding and unloading are realized, and continuous cyclic feeding and unloading can be carried out, thereby effectively improving the processing efficiency and providing strong support for the growing production capacity gap of the enterprise.

[0018] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not used to limit the present disclosure.

[0019] This application document provides an overview of various implementations or examples of the technology described in the present disclosure and is not a full disclosure of the entire scope or all features of the disclosed technology. Brief Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure provided by the embodiment of the present invention; Figure 2 It is a schematic diagram of the internal structure provided by the embodiment of the present invention; Figure 3 It is a schematic diagram of the enlarged partial structure A provided by the embodiment of the present invention; Figure 4 It is a schematic diagram of the elevation structure of a single feeding mechanism and a material transfer box provided by the embodiment of the present invention; Figure 5 It is a schematic diagram of the sectional structure B-B provided by the embodiment of the present invention; Figure 6 It is a schematic diagram of the sectional structure of the laminated sheet assembly provided by the embodiment of the present invention; Figure 7 It is a schematic diagram of the fixed disk structure provided by the embodiment of the present invention; Figure 8 It is a schematic diagram of the structure of the loading platform provided by the embodiment of the present invention; Figure 9 It is a schematic diagram of the structure of the unloading mechanism provided by the embodiment of the present invention.

[0022] Description of the Reference Numerals: 100, processing base; 110, rotating shaft; 200, feeding mechanism; 210, mounting frame; 220, guide plate; 230, push plate; 240, compression spring; 250, locking assembly; 251, locking block; 252, torsion spring; 260, unlocking assembly; 261, first unlocking rod; 262, second unlocking rod; 270, resetting assembly; 271, pushing rod; 272, first connecting rod; 273, second connecting rod; 274, inclined surface; 300, material transfer mechanism; 310, support rod; 320, material transfer box; 330, feeding port; 340, discharging port; 400, unloading mechanism; 410, connecting frame; 420, connecting rod; 430, transmission gear; 440, internal gear; 450, transmission assembly; 451, worm; 452, worm wheel; 453, sleeve; 500. Stacking component; 510. Carrying platform; 520. Storage bin; 530. Self-compression unit; 531. Fixed disk; 532. First slot; 533. Limit rod; 534. Sliding groove; 535. First limit groove; 536. Second limit groove. Detailed implementation manner

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0024] Please refer to Figures 1-9 , a multi-station production line for lithium battery assembly, including a processing seat 100, a rotating shaft 110 rotatably connected to the processing seat 100, and three conveyor belts respectively for conveying positive electrode sheets, separators, and negative electrode sheets, including a feeding mechanism 200, a material transfer mechanism 300, and a discharging mechanism 400. The feeding mechanism 200 transfers raw materials to the material transfer mechanism 300, and the discharging mechanism 400 unloads the materials in the material transfer mechanism 300. The feeding mechanism 200 includes three mounting frames 210 corresponding to the conveyor belts one by one. The mounting frames 210 are fixedly arranged on the processing seat 100. The mounting frames 210 are arranged below the conveyor belts. Two guiding plates 220 are fixedly arranged on the mounting frames 210. A pushing plate 230 is slidably connected between the two guiding plates 220. A compression spring 240 is fixedly arranged between the pushing plate 230 and the mounting frame 210. It further includes a locking component 250 for locking the pushing plate 230, an unlocking component 260 for unlocking the pushing plate 230, and a reset component 270 for re-locking the pushing plate 230. The material transfer mechanism 300 includes six support rods 310 fixedly connected to the rotating shaft 110. The support rods 310 are arranged in a circumferential array. A material transfer box 320 is rotatably connected to each of the support rods 310. The material transfer box 320 is respectively provided with a feeding port 330 and a discharging port 340. The discharging mechanism 400 includes a connecting frame 410 fixedly arranged on the support rod 310. A connecting rod 420 is rotatably connected to the end of the connecting frame 410. A transmission gear 430 and a transmission component 450 are respectively fixedly connected to both ends of the connecting rod 420. The transmission gear 430 meshes with an internal gear 440 on the processing seat 100. The internal gear 440 is incompletely arranged. The rotating shaft 110 is driven to rotate by a motor arranged in the processing seat 100.

[0025] Through the provided feeding mechanism 200, the conveyor belt transports the materials between two guiding plates 220 on the mounting rack 210. When the material transfer box 320 rotates to the position of the mounting rack 210, the material transfer box 320 automatically releases the restriction on the pushing plate 230 through the unlocking component 260. Under the reset action of the compression spring 240, the pushing plate 230 drives the raw materials to move quickly and is transported into the material transfer box 320 from the feeding port 330, thus realizing non-stop feeding, effectively compressing the time. And the material transfer box 320 enables the pushing plate 230 to be locked again by the locking component 250 through the reset component 270, waiting for the next feeding, thereby realizing a complete feeding coordination. Through the provided discharging mechanism 400, when the material transfer box 320 successively receives and stacks three kinds of raw materials and then rotates to the position of the internal gear 440, the driving gear 430 drives the connecting rod 420 to rotate. The rotation of the connecting rod 420 drives the material transfer box 320 to rotate through the transmission component 450. The rotation of the material transfer box 320 causes the materials in the material transfer box 320 to pour out from the discharging port 340, and a conveyor belt can be arranged at this position to convey them to the next process, thus realizing non-stop automatic discharging. And after the material transfer box 320 finishes rotating, it resets to perform the feeding and discharging of the next cycle.

[0026] Further, the transmission component 450 includes a worm 451 fixedly arranged at the end of the connecting rod 420. A worm gear 452 is meshed with the worm 451. The worm gear 452 is fixedly connected to the material transfer box 320 through a sleeve 453. The worm gear 452 and the sleeve 453 are coaxially arranged with the support rod 310.

[0027] The rotation of the connecting rod 420 drives the worm 451 to rotate synchronously. The rotation of the worm 451 drives the sleeve 453 to rotate through the worm gear 452. The rotation of the sleeve 453 drives the material transfer box 320 to rotate. Since the material transfer box 320 is rotatably connected to the support rod 310, the material transfer box 320 rotates around the axis of the support rod 310. And due to the self-locking property of the worm gear 452 and the worm 451, the material transfer box 320 can also be prevented from deflecting during the feeding process, thus ensuring the stability of feeding.

[0028] Further, the width of the feeding port 330 is greater than the distance between the two guiding plates 220. This setting enables the materials on the guiding plates 220 to have more sufficient time to enter the material transfer box 320 and prevents the materials from being unable to enter the material transfer box 320 due to the too-fast rotation of the material transfer box 320. In addition, during the rotational discharging process of the material transfer box 320, the materials will abut against the inner wall of the material transfer box 320, thus completing the alignment of the materials. That is, the problem of possible misalignment of the materials caused by the width of the feeding port 330 being greater than the distance between the guiding plates 220 can be solved during the rotational discharging process.

[0029] Further, the locking assembly 250 includes a locking block 251 rotatably disposed on the guide plate 220. The locking block 251 is semicircularly arranged. One end of the locking block 251 passes through the mounting bracket 210 and is connected to the unlocking assembly 260. A torsion spring 252 for resetting is disposed between the locking block 251 and the mounting bracket 210. The unlocking assembly 260 includes a first unlocking rod 261 fixedly connected to the end of the locking block 251. A second unlocking rod 262 is fixedly disposed on the material transfer box 320. The second unlocking rod 262 rotates to drive the first unlocking rod 261 to rotate, so as to unlock the locking of the locking block 251 on the push plate 230.

[0030] The rotation of the material transfer box 320 drives the second unlocking rod 262 to rotate. The rotation of the second unlocking rod 262 drives the first unlocking rod 261 to rotate. The rotation of the first unlocking rod 261 drives the unlocking block to rotate, thereby unlocking the locking of the push plate 230. After the second unlocking rod 262 unlocks the locked state of the push plate 230 through the rotation of the first unlocking rod 261, the first unlocking rod 261 abuts against the second unlocking rod 262, so that the locking block 251 cannot be reset under the action of the torsion spring 252, thereby keeping the push plate 230 in an unlocked state.

[0031] Further, the resetting assembly 270 includes a push rod 271 fixedly disposed on the material transfer box 320. A first connecting rod 272 is fixedly connected to the push plate 230. The first connecting rod 272 is slidably connected to the mounting bracket 210. And a second connecting rod 273 is fixedly connected to the end of the first connecting rod 272. An inclined surface 274 is disposed at the end of the second connecting rod 273. The rotation of the push rod 271 drives the push plate 230 to move towards the compression spring 240 through the inclined surface 274.

[0032] When the material enters the material transfer box 320 through the feed inlet 330, the material transfer box 320 drives the push rod 271 to rotate. The push rod 271 abuts against the inclined surface 274 of the second connecting rod 273, so that the second connecting rod 273 moves towards the compression spring 240. The second connecting rod 273 drives the push plate 230 to move towards the compression spring 240 through the first connecting rod 272. As can be seen from the foregoing, the push plate 230 is in an unlocked state at this time. When the push plate 230 moves past the locking block 251, the second unlocking rod 262 and the first unlocking rod 261 are disengaged from the abutting state. The locking block 251 is reset under the action of the torsion spring 252 and locks the push plate 230 again to wait for the next cycle of the material transfer box 320 to perform the above feeding process. Through the locking assembly 250, the unlocking assembly 260 and the resetting assembly 270 of the present invention, the locking of the push plate 230 can be automatically released and restored, so that the feeding can be automatically completed without stopping the machine when the material transfer box 320 passes by. It should be noted that the second connecting rod 273 and the first unlocking rod 261 are not at the same height to avoid affecting their respective action processes.

[0033] Further, it further includes a laminated sheet assembly 500. The laminated sheet assembly 500 includes a carrier table 510 slidably disposed in the material transfer box 320. The carrier table 510 and the inner wall of the material transfer box 320 form a storage bin 520 for storing materials. A self-compression unit 530 is disposed between the support rod 310 and the carrier table 510. The self-compression unit 530 includes a fixed disk 531 fixedly disposed at the end of the support rod 310. The fixed disk 531 is disposed in a first slot 532 on the carrier table 510. A limiting rod 533 is also fixedly disposed on the fixed disk 531. The limiting rod 533 is slidably connected in a sliding slot 534 on the carrier table 510. The sliding slot 534 is a closed slot connected end to end. Further, the sliding slot 534 includes a first limiting slot 535 and a second limiting slot 536 that are connected. When the limiting rod 533 is slidably connected in the first limiting slot 535, the carrier table 510 moves in a direction away from the feed inlet 330. When the limiting rod 533 is slidably connected in the second limiting slot 536, the carrier table 510 moves in a direction close to the feed inlet 330.

[0034] When the materials in the material transfer box 320 are rotated and poured out, the materials may be separated during the descending process, which is not convenient for subsequent processing. Therefore, the present invention provides a laminated sheet assembly 500 to compact multiple materials in the material transfer box 320 during rotation and complete the lamination of the raw materials.

[0035] Specifically, the rotation of the material transfer box 320 drives the rotation of the carrier table 510. The rotation of the carrier table 510 drives the rotation of the sliding slot 534 thereon. Since the limiting rod 533 always remains fixed, during the rotation of the carrier table 510, when the limiting rod 533 is slidably connected in the first limiting slot 535, the carrier table 510 moves in a direction away from the feed inlet 330, so that the space of the storage bin 520 is enlarged, facilitating the entry and stacking of raw materials. When the limiting rod 533 is slidably connected in the second limiting slot 536, the carrier table 510 moves in a direction close to the feed inlet 330, thereby compacting the stacked materials and completing the lamination process. Moreover, the compacted materials will not be separated after being poured out, and will not affect the progress of subsequent processes. It should be noted that the second limiting slot 536 is located farther from the axis of the support rod 310 (the axis of the support rod 310 is the rotation center line of the material transfer box 320) compared to the first limiting slot 535; the first slot 532 enables the sliding of the carrier table 510 in the material transfer box 320 not to be blocked by the fixed disk 531.

[0036] The present invention can also be provided with a receiving plate (not shown in the figure) at the material pouring-out place. The obliquely falling materials first fall on the receiving plate and slide onto the conveyor belt on the receiving plate, buffering and guiding the materials.

[0037] It should be noted that the present invention is not limited to the feeding and discharging of three materials. The feeding and discharging of multiple materials adopting the structure of the present invention should all fall within the protection scope of the present invention. For example, for the feeding and discharging of four materials, only one mounting frame 210 and the corresponding devices thereon and two material transfer boxes 320 and the corresponding devices thereon need to be added to achieve it.

[0038] Working principle: The conveyor belt transports the materials between two guide plates 220 on the mounting frame 210. When the material transfer box 320 rotates to the position of the mounting frame 210, the rotation of the material transfer box 320 around the rotation shaft 110 drives the second unlocking rod 262 to rotate. The rotation of the second unlocking rod 262 drives the first unlocking rod 261 to rotate. The rotation of the first unlocking rod 261 drives the unlocking block to rotate, thereby unlocking the locking of the push plate 230. And after the second unlocking rod 262 unlocks the locking state of the push plate 230 through the rotation of the first unlocking rod 261, the first unlocking rod 261 abuts against the second unlocking rod 262, so that the locking block 251 cannot reset under the action of the torsion spring 252, thus keeping the push plate 230 in an unlocked state; when the material enters the material transfer box 320 through the feed port 330, the material transfer box 320 drives the push rod 271 to rotate. The push rod 271 abuts against the inclined surface 274 of the second connecting rod 273, causing the second connecting rod 273 to move towards the compression spring 240. The second connecting rod 273 drives the push plate 230 to move towards the compression spring 240 through the first connecting rod 272. When the push plate 230 moves past the locking block 251, the second unlocking rod 262 and the first unlocking rod 261 are disengaged from the abutting state, and the locking block 251 resets under the action of the torsion spring 252 to re-lock the push plate 230, waiting for the next material transfer box 320 to cycle through the above feeding process.

[0039] When the material transfer box 320 successively receives and stacks three raw materials and then rotates to the internal gear 440, the transmission gear 430 drives the connecting rod 420 to rotate. The rotation of the connecting rod 420 drives the synchronous rotation of the worm 451. The rotation of the worm 451 drives the rotation of the sleeve 453 through the worm gear 452. The rotation of the sleeve 453 drives the rotation of the material transfer box 320. Since the material transfer box 320 is rotatably connected to the support rod 310, the material transfer box 320 rotates around the axis of the support rod 310. During the rotation of the material transfer box 320 around the support rod 310, the stacked materials abut against the inner wall of the material transfer box 320 for automatic alignment; the rotation of the material transfer box 320 drives the rotation of the carrier table 510. The rotation of the carrier table 510 drives the rotation of the sliding groove 534 thereon. Since the limiting rod 533 remains fixed all the time, during the rotation of the carrier table 510, when the limiting rod 533 is slidably connected to the first limiting groove 535, the carrier table 510 moves away from the feed inlet 330, so that the space of the storage bin 520 expands, facilitating the entry of raw materials for stacking; when the limiting rod 533 is slidably connected to the second limiting groove 536, the carrier table 510 moves towards the feed inlet 330, thereby compacting the stacked materials to complete the lamination process.

[0040] The rotation of the connecting rod 420 drives the rotation of the material transfer box 320 through the transmission assembly 450. The rotation of the material transfer box 320 causes the materials in the material transfer box 320 to pour out from the discharge port 340, and a conveyor belt can be arranged at this position to convey to the next process, so as to realize automatic unloading without stopping the machine. After the rotation of the material transfer box 320 is completed, it resets to perform the feeding and unloading of the next cycle.

[0041] Only some exemplary embodiments of the present invention have been described by way of illustration above. Without doubt, for those of ordinary skill in the art, various different ways can be used to modify the described embodiments without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A multi-station production line for lithium battery assembly, comprising a processing seat (100), a rotating shaft (110) rotatably connected to the processing seat (100), and three conveyor belts for conveying positive electrode sheets, separators, and negative electrode sheets, respectively, characterized in that: It comprises a feeding mechanism (200), a material conveying mechanism (300) and a material discharging mechanism (400), wherein the feeding mechanism (200) transfers the raw materials to the material conveying mechanism (300), and the material discharging mechanism (400) discharges the materials in the material conveying mechanism (300); The feeding mechanism (200) comprises three mounting frames (210) corresponding to the conveyor belts one by one, the mounting frames (210) being fixedly arranged on the processing seat (100), the mounting frames (210) being arranged on the lower side of the conveyor belt, two guide plates (220) being fixedly arranged on the mounting frames (210), push plates (230) being slidably connected inside the two guide plates (220), a compression spring (240) being fixedly arranged between the push plates (230) and the mounting frames (210), and further comprising a locking assembly (250) for locking the push plates (230), an unlocking assembly (260) for releasing the lock of the push plates (230), and a resetting assembly (270) for relocking the push plates (230); The material transfer mechanism (300) comprises six support rods (310) fixedly connected to the rotating shaft (110), the support rods (310) being arranged in a circular array, each of the support rods (310) being rotatably connected to a material transfer box (320), and the material transfer box (320) being respectively provided with a material inlet (330) and a material outlet (340); The unloading mechanism (400) comprises a connecting frame (410) fixedly arranged on a support rod (310), the end of the connecting frame (410) being rotatably connected to a connecting rod (420), the two ends of the connecting rod (420) being respectively fixedly connected to a transmission gear (430) and a transmission assembly (450), the transmission gear (430) being meshed with an internal gear (440) on a processing seat (100), and the internal gear (440) being incompletely arranged.

2. A multi-station production line for lithium battery assembly according to claim 1, characterized in that: The transmission assembly (450) comprises a worm (451) fixedly arranged at the end of the connecting rod (420), the worm (451) being meshingly connected with a worm wheel (452), the worm wheel (452) being fixedly connected to the material transfer box (320) via a sleeve (453), and the worm wheel (452) and the sleeve (453) being coaxially arranged with the support rod (310).

3. A multi-station production line for lithium battery assembly according to claim 1, characterized in that: The width of the feed opening (330) is greater than the distance between the two guide plates (220).

4. A multi-station production line for lithium battery assembly according to claim 3, characterized in that: The locking assembly (250) comprises a locking block (251) rotatably arranged on the guide plate (220); the locking block (251) is arranged in a semicircular shape; one end of the locking block (251) passes through the mounting frame (210) and is connected to the unlocking assembly (260); a torsion spring (252) for resetting is arranged between the locking block (251) and the mounting frame (210).

5. A multi-station production line for lithium battery assembly according to claim 4, characterized in that: The unlocking assembly (260) comprises a first unlocking rod (261) fixedly connected to the end of the locking block (251); a second unlocking rod (262) is fixedly arranged on the material transfer box (320); the second unlocking rod (262) rotates to drive the first unlocking rod (261) to rotate, so as to unlock the locking block (251) from locking the push plate (230).

6. A multi-station production line for lithium battery assembly according to claim 1, characterized in that: The reset assembly (270) comprises a push rod (271) fixedly arranged on the material transfer box (320); a first connecting rod (272) is fixedly connected to the push plate (230); the first connecting rod (272) is slidably connected to the mounting frame (210); a second connecting rod (273) is fixedly connected to the end of the first connecting rod (272); an inclined surface (274) is arranged at the end of the second connecting rod (273); the push rod (271) rotates through the inclined surface (274) to drive the push plate (230) to move in the direction of the compression spring (240).

7. A multi-station production line for lithium battery assembly according to claim 1, characterized in that: The invention also comprises a lamination assembly (500), wherein the lamination assembly (500) comprises a loading platform (510) slidably arranged in a material transfer box (320), wherein the loading platform (510) and the inner wall of the material transfer box (320) form a material storage bin (520) for storing materials, and a self-compression unit (530) is arranged between the support rod (310) and the loading platform (510).

8. A multi-station production line for lithium battery assembly according to claim 7, characterized in that: The self-compression unit (530) comprises a fixed plate (531) fixedly arranged at the end of the support rod (310); the fixed plate (531) is arranged in a first slot (532) on the loading platform (510); a limit rod (533) is also fixedly arranged on the fixed plate (531); the limit rod (533) is slidably connected in a sliding slot (534) on the loading platform (510); the sliding slot (534) is a closed slot connected end to end.

9. A multi-station production line for lithium battery assembly according to claim 8, characterized in that: The sliding groove (534) comprises a first limiting groove (535) and a second limiting groove (536) which are connected to each other. When the limiting rod (533) is slidably connected in the first limiting groove (535), the loading platform (510) moves in a direction away from the feed port (330). When the limiting rod (533) is slidably connected in the second limiting groove (536), the loading platform (510) moves in a direction close to the feed port (330).

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