A multi-station production line for lithium battery assembly

Abstract

The application relates to a multi-station production line for lithium battery assembly, which comprises a battery cell, a feeding mechanism, a cleaning mechanism, a gluing mechanism, a material falling mechanism and a multi-station rotating mechanism, the feeding mechanism, the cleaning mechanism, the gluing mechanism and the material falling mechanism are one-to-one arranged on four stations of the multi-station rotating mechanism; the feeding mechanism is used for automatically placing the battery cell on the multi-station rotating mechanism; when the multi-station rotating mechanism rotates to a cleaning station, the cleaning mechanism is used for cleaning the battery cell on the multi-station rotating mechanism; when the multi-station rotating mechanism rotates to a gluing station, the gluing mechanism is used for gluing the battery cell on the multi-station rotating mechanism; in the process of rotating to a material falling station, the multi-station rotating mechanism turns over the battery cell; when the multi-station rotating mechanism rotates to the material falling station, the battery cell falls off from the multi-station rotating mechanism and enters the material falling mechanism; and the material falling mechanism is used for aligning the stacked battery cells; in the application, the multi-station rotating operation mode is adopted, and the cleaning, gluing, turning over and stacking operations are synchronously completed, so that the system working efficiency can be effectively improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of lithium battery production, and particularly relates to a multi-station production line for lithium battery assembly. BACKGROUND

[0002] With the further development of science and technology, the energy problem and the environmental problem are increasingly prominent, and people have higher and higher requirements for lithium ion batteries. The lithium battery is small in size, low in self-discharge, high in specific energy and energy storage, and good in safety. As one of the key technologies for lithium battery manufacturing, the lithium battery automatic production line greatly influences the further development of the lithium battery. Therefore, it is of great significance to improve the automation degree of the lithium battery production line and improve the production efficiency of the lithium battery.

[0003] Prior art (Yin Qiugui patent, application number: CN202110026963.9, application date: January 9, 2021 "A cleaning device for lithium battery production") proposes a lithium battery cleaning device, which realizes automatic cleaning of lithium batteries, and does not have the functions of gluing, turning over, stacking and the like of lithium batteries.

[0004] Prior art (Li Jun et al. patent, application number: CN202210773970.X, application date: July 1, 2022 "A lithium battery production line") proposes a lithium battery production line, which sequentially completes the test process, the edge folding process, the corner folding process, the tab shaping process, the paper pasting process, the tab folding process and the material distribution process of the lithium battery, but the system has complex processes, low system integration and high cost. SUMMARY

[0005] The purpose of the present application is to provide a multi-station production line for lithium battery assembly, which can realize automatic feeding, cleaning, gluing, turning over and material dropping of the battery cell.

[0006] The application provides a multi-station production line for assembling lithium batteries, which comprises a battery cell 1, a feeding mechanism 2, a cleaning mechanism 3, a glue coating mechanism 4, a material dropping mechanism 5 and a multi-station rotating mechanism 6, wherein the battery cell 1 is arranged on the feeding mechanism 2, the multi-station rotating mechanism 6 is provided with four stations, and the feeding mechanism 2, the cleaning mechanism 3, the glue coating mechanism 4 and the material dropping mechanism 5 are arranged in one-to-one correspondence on the four stations of the multi-station rotating mechanism 6; the feeding mechanism 2 is located at an initial station of the multi-station rotating mechanism 6 and is used for automatically placing the battery cell 1 on the multi-station rotating mechanism 6; when the multi-station rotating mechanism 6 rotates to a cleaning station, the cleaning mechanism 3 is used for cleaning the battery cell 1 on the multi-station rotating mechanism 6; when the multi-station rotating mechanism 6 rotates to a glue coating station, the glue coating mechanism 4 is used for coating glue on the battery cell 1 on the multi-station rotating mechanism 6; in the process that the multi-station rotating mechanism 6 rotates to a material dropping station, the battery cell 1 is turned over; when the multi-station rotating mechanism 6 rotates to the material dropping station, the battery cell 1 is dropped from the multi-station rotating mechanism 6 and enters the material dropping mechanism 5; and the material dropping mechanism 5 is used for aligning the stacked battery cells 1; and the power sources of the feeding mechanism 2, the cleaning mechanism 3, the glue coating mechanism 4 and the material dropping mechanism 5 are provided by the multi-station rotating mechanism 6.

[0007] The feeding mechanism 2 comprises a hopper 21, a first stand column 22, a blocking column 23, a first guide rail 24, a first sliding block 25, a push plate 26, a first swing rod 27, a first mounting shaft 28, a first mounting plate 29, a second mounting shaft 210, a second mounting plate 211, a third mounting shaft 212, a second swing rod 213, a fourth mounting shaft 214 and a fifth mounting shaft 215; the hopper 21 is mounted at the top end of the first stand column 22, the battery cell 1 is placed in the hopper 21, and the bottom of the hopper 21 is provided with an opening for discharging the battery cell 1; the blocking column 23 is mounted on the first stand column 22 and arranged at the bottom of the hopper 21 and used for receiving the discharged battery cell 1; the first guide rail 24 is arranged on the two sides of the hopper 21, the first sliding block 25 is placed on the first guide rail 24, and the first guide rail 24 is slidably connected with the first sliding block 25; the push plate 26 is arranged behind the discharged battery cell 1 and connected with the first sliding block 25; the push plate 26 pushes the first sliding block 25 and drives the discharged battery cell 1 to slide away from the blocking column 23 and enter the multi-station rotating mechanism 6; the first mounting plate 29 is mounted on the first stand column 22, the first mounting plate 29 is hingedly connected with the first swing rod 27 through the second mounting shaft 210, the first swing rod 27 is provided with U-shaped grooves at the upper end and the lower end, the first mounting shaft 28 is fixedly arranged on the first sliding block 25 and arranged in the U-shaped groove at the upper end of the first swing rod 27, the second mounting plate 211 is mounted on the first stand column 22, the second mounting plate 211 is hingedly connected with the second swing rod 213 through the third mounting shaft 212, the second swing rod 213 is fixedly provided with the fourth mounting shaft 214 and the fifth mounting shaft 215 at the two ends, and the fourth mounting shaft 214 is arranged in the U-shaped groove at the lower end of the first swing rod 27.

[0008] The cleaning mechanism 3 comprises a second column 31, a second guide rail 32, a second sliding block 33, a first compression spring 34, a first support frame 35, a first cleaning head 36, a second cleaning head 37, a first rotating shaft 38 and a first roller 39. The second guide rail 32 is installed on the second column 31. The second sliding block 33 is placed on the second guide rail 32 and is in sliding connection with the second guide rail 32. The first compression spring 34 is arranged between the second sliding block 33 and the second column 31 along the sliding direction of the second sliding block 33. The first support frame 35 is horizontally placed in a U-shaped structure. The tail of the first support frame 35 is installed on the second sliding block 33. The first cleaning head 36 and the second cleaning head 37 are respectively installed on the upper part and the lower part of the U-shaped structure of the first support frame 35. The first cleaning head 36 and the second cleaning head 37 are opposite to each other and are used for cleaning the upper and lower surfaces of the battery cell 1. The first roller 39 is hinged to the head end of the first support frame 35 through the first rotating shaft 38.

[0009] The gluing mechanism 4 comprises a third column 41, a third guide rail 42, a third sliding block 43, a second compression spring 44, a second support frame 45, a gluing head 46, a second rotating shaft 47 and a second roller 48. The third guide rail 42 is installed on the third column 41. The third sliding block 43 is placed on the third guide rail 42 and is in sliding connection with the third guide rail 42. The second compression spring 44 is arranged between the third sliding block 43 and the third column 41 along the sliding direction of the third sliding block 43. The second support frame 45 is horizontally placed in a U-shaped structure. The tail of the second support frame 45 is installed on the third sliding block 43. The gluing head 46 is installed on the second support frame 45 and is used for gluing the battery cell 1. The second roller 48 is hinged to the head end of the second support frame 45 through the second rotating shaft 47.

[0010] The blanking mechanism 5 comprises a fourth column 51, a fourth guide rail 52, a fourth sliding block 53, a third compression spring 54, a third support frame 55, a back plate 56, a falling groove 57, a third rotating shaft 58 and a third roller 59. The fourth guide rail 52 is installed on the fourth column 51. The fourth sliding block 53 is placed on the fourth guide rail 52 and is in sliding connection with the fourth guide rail 52. The third compression spring 54 is arranged between the fourth sliding block 53 and the fourth column 51 along the sliding direction of the fourth sliding block 43. The third support frame 55 is installed on the fourth sliding block 53. The falling groove 57 is installed on the fourth guide rail 52. The falling groove 57 is provided with an opening at the front end. The back plate 56 is installed on the third support frame 55 and blocks the opening of the falling groove 57. The third roller 59 is hinged to the third support frame 55 through the third rotating shaft 58.

[0011] The multi-station rotating mechanism 6 comprises a mounting frame 61, a motor 62, a grooved wheel 63, a cam 64, a gear ring 65, a support column 66, a rotating disc 67, a first electromagnet 68, a rotating frame 69, a second electromagnet 610, a third rotating shaft 611, a fourth rotating shaft 612 and a gear wheel 613, the motor 62 is mounted on the mounting frame 61, the grooved wheel 63, the cam 64 and the rotating disc 67 are coaxially mounted on the main shaft of the motor 62 from bottom to top, the grooved wheel 63 is provided with an arc-shaped groove 631, the fifth mounting shaft 215 is arranged in the arc-shaped groove 631, the grooved wheel 63 can provide power for the feeding mechanism 2, the cam 64 is provided with petal-shaped protrusions 641, the first roller 39, the second roller 48 and the third roller 59 are in contact with the protrusions 641 respectively, the cam 64 rotates to push the first roller 39, the second roller 48 and the third roller 59, thereby providing power for the cleaning mechanism 3, the gluing mechanism 4 and the material dropping mechanism 5, the gear ring 65 is mounted on the support column 66, the support column 66 is mounted on the mounting frame 61, the rotating disc 67 is uniformly distributed with notches, each notch is provided with the rotating frame 69, the rotating frame 69 is rotatably connected with the rotating disc 67 through the third rotating shaft 611 and the fourth rotating shaft 612, the gear wheel 613 is mounted on the fourth rotating shaft 612, when the rotating disc 67 rotates, the gear wheel 613 can be engaged with the gear ring 65, thereby being used for overturning the rotating frame 69, the second electromagnet 610 is mounted on the rotating frame 69, thereby being used for adsorbing the battery cell 1, the first electromagnet 68 is mounted on the rotating disc 67 and is arranged on both sides of the battery cell 1, thereby adsorbing the battery cell 1 and preventing the rotating frame 69 from rotating when not overturning.

[0012] In the application, the first support frame 35, the second support frame 45 and the third support frame 55 are arranged in a U shape.

[0013] In the application, the petal-shaped protrusions 641 of the cam 64 are uniformly arranged with four protrusions, and each protrusion corresponds to each station.

[0014] In the application, the arc-shaped groove 631 of the grooved wheel 63 has four wave crests and wave troughs, and each wave crest corresponds to each station.

[0015] The working principle of the present application: the present application proposes a multi-station production line for lithium battery assembly, the feeding mechanism 2 is in the initial station of the multi-station rotating mechanism 6, the groove wheel 63 drives the connecting rod mechanism formed by the first swing rod 27 and the second swing rod 213, pulls the push plate 26 to slide along the guide rail 1, and pushes the battery cell 1 to the station rotating mechanism 6. The multi-station rotating mechanism 6 rotates to the cleaning station, the cam 64 pushes the first roller 39, forces the first support frame 35 to drive the first cleaning head 36 and the second cleaning head 37 to move on the second guide rail 32, and realizes the cleaning of both sides of the battery cell 1. The multi-station rotating mechanism 6 rotates to the gluing station, the cam 64 pushes the second roller 48, forces the second support frame 45 to drive the gluing head 46 to move on the third guide rail 42, and realizes the gluing of the battery cell 1. The multi-station rotating mechanism 6 rotates to the falling station, the gear 613 meshes with the gear ring 65, the turnover frame 69 turns over, and the battery cell 1 is turned over. The multi-station rotating mechanism 6 rotates to the falling station, the first electromagnet 68 and the second electromagnet 610 are powered off, the battery cell 1 falls off from the multi-station rotating mechanism 6 and enters the falling mechanism 5, the cam 64 pushes the third roller 59, and the battery cell 1 is stacked and aligned on one side through the third support frame 55.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] 1. In the present application, the feeding mechanism 2, the cleaning mechanism 3, the gluing mechanism 4, the falling mechanism 5 and the multi-station rotating mechanism 6 are coordinated and matched, and through automatic feeding, cleaning, gluing, turning over and stacking assembly of the battery cell, high-efficiency automatic assembly of the lithium battery is realized.

[0018] 2. In the present application, a multi-station rotating operation mode is adopted, and the cleaning, gluing, turning over and stacking operations are completed synchronously, which can effectively improve the system working efficiency.

[0019] 3. In the present application, the multi-station rotating mechanism 6 is matched with the feeding mechanism 2, the cleaning mechanism 3, the gluing mechanism 4 and the falling mechanism 5, the feeding mechanism 2, the cleaning mechanism 3, the gluing mechanism 4 and the falling mechanism 5 can be freely arranged in working order and station according to needs, and the flexibility of the lithium battery assembly system set is effectively improved.

[0020] 4. In the present application, only a single power source is needed to drive the feeding mechanism 2, the cleaning mechanism 3, the gluing mechanism 4 and the falling mechanism 5, which can effectively improve the system reliability and reduce the system cost. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a side view of the lithium battery production line.

[0022] Figure 2 is a side view of the feeding mechanism.

[0023] Figure 3 is a front view of the feeding mechanism.

[0024] Figure 4 is a front view of the cleaning mechanism.

[0025] Figure 5 is a rear view of the cleaning mechanism.

[0026] Figure 6 is a front view of the gluing mechanism.

[0027] Figure 7 is a rear view of the gluing mechanism.

[0028] Figure 8 is a side view of the discharging mechanism.

[0029] Figure 9 is a front view of the discharging mechanism.

[0030] Figure 10 is a side view of the multi-station rotating mechanism.

[0031] Figure 11 is a front view of the multi-station rotating mechanism.

[0032] Figure 12 is an A-A sectional view of Figure 11 .

[0033] Figure 13 is a top view of the multi-station rotating mechanism.

[0034] Figure 14 is a B-B sectional view of Figure 13 .

[0035] The figure label: 1. cell, 2. feeding mechanism, 3. cleaning mechanism, 4. gluing mechanism, 5. material falling mechanism, 6. multi-station rotating mechanism, 21. hopper, 22. first stand, 23. blocking column, 24. first guide rail, 25. first sliding block, 26. push plate, 27. first swing lever, 28. first mounting shaft, 29. first mounting plate, 210. second mounting shaft, 211. second mounting plate, 212. third mounting shaft, 213. second swing lever, 214. fourth mounting shaft, 215. fifth mounting shaft, 31. second stand, 32. second guide rail, 33. second sliding block, 34. first compression spring, 35. first support frame, 36. first cleaning head, 37. second cleaning head, 38. first rotating shaft, 39. first roller, 41. third stand, 42. third guide rail, 43. third sliding block, 44. second compression spring, 45. second support frame, 46. gluing head, 47. second rotating shaft, 48. second roller, 51. fourth stand, 52. fourth guide rail, 53. fourth sliding block, 54. third compression spring, 55. third support frame, 56. back plate, 57. falling groove, 58. third rotating shaft, 59. third roller, 61. mounting frame, 62. motor, 63. groove wheel, 64. cam, 65. gear ring, 66. support column, 67. rotating disc, 68. first electromagnet, 69. rotating frame, 610. second electromagnet, 611. third rotating shaft, 612. fourth rotating shaft, 613. gear wheel. DETAILED DESCRIPTION

[0036] The present application will be further described below by way of examples in conjunction with the accompanying drawings.

[0037] Example 1: Combination Figures 1-14 To solve the technical problems, the present application adopts the technical scheme: a multi-station production line for lithium battery assembly, comprising a cell 1, a feeding mechanism 2, a cleaning mechanism 3, a gluing mechanism 4, a material falling mechanism 5, and a multi-station rotating mechanism 6. The cell 1 is arranged on the feeding mechanism 2. The feeding mechanism 2, the cleaning mechanism 3, the gluing mechanism 4, and the material falling mechanism 5 are arranged one by one in four stations of the multi-station rotating mechanism 6. The feeding mechanism 2 is arranged at the initial station of the multi-station rotating mechanism 6 to automatically place the cell 1 in the multi-station rotating mechanism 6. The multi-station rotating mechanism 6 rotates to the cleaning station, and the cleaning mechanism 3 cleans the cell 1 in the multi-station rotating mechanism 6. The multi-station rotating mechanism 6 rotates to the gluing station, and the gluing mechanism 4 glues the cell 1 in the multi-station rotating mechanism 6. In the process of rotating to the material falling station, the multi-station rotating mechanism 6 flips the cell 1. The multi-station rotating mechanism 6 rotates to the material falling station, and the cell 1 falls from the multi-station rotating mechanism 6 into the material falling mechanism 5. The material falling mechanism 5 aligns the stacked cells 1. The power sources of the feeding mechanism 2, the cleaning mechanism 3, the gluing mechanism 4, and the material falling mechanism 5 are provided by the multi-station rotating mechanism 6.

[0038] The feeding mechanism 2 comprises a hopper 21, a first vertical column 22, a blocking column 23, a first guide rail 24, a first sliding block 25, a push plate 26, a first swing lever 27, a first mounting shaft 28, a first mounting plate 29, a second mounting shaft 210, a second mounting plate 211, a third mounting shaft 212, a second swing lever 213, a fourth mounting shaft 214, and a fifth mounting shaft 215. The hopper 21 is mounted at the top end of the first vertical column 22, and the battery cell 1 is placed inside the hopper 21. An opening is formed at the bottom of the hopper 21 to allow one battery cell 1 to be discharged. The blocking column 23 is mounted on the first vertical column 22 and is arranged at the bottom of the hopper 21 to receive the discharged battery cell 1. The first guide rails 24 are arranged on both sides of the hopper 21. The first sliding block 25 is slidably connected to the first guide rail 24. The push plate 26 is connected to the first sliding blocks 25 on both sides of the hopper 21 and is arranged behind the discharged battery cell 1. The push plate 26 can push the discharged battery cell 1 away from the blocking column 23 by sliding the first sliding block 25, so that the discharged battery cell 1 enters the multi-station rotating mechanism 6. The first mounting plate 29 is mounted on the first vertical column 22 and is hingedly connected to the first swing lever 27 through the second mounting shaft 210. The first swing lever 27 has U-shaped grooves at both ends. The first mounting shaft 28 is fixedly arranged on the first sliding block 25 and is arranged in one of the U-shaped grooves. The second mounting plate 211 is mounted on the first vertical column 22 and is hingedly connected to the second swing lever 213 through the third mounting shaft 212. The second swing lever 213 has the fourth mounting shaft 214 and the fifth mounting shaft 215 fixedly arranged at both ends, respectively. The fourth mounting shaft 214 is arranged in the other U-shaped groove of the first swing lever 27.

[0039] The cleaning mechanism 3 comprises a second vertical column 31, a second guide rail 32, a second sliding block 33, a first compression spring 34, a first support frame 35, a first cleaning head 36, a second cleaning head 37, a first rotating shaft 38, and a first roller 39. The second guide rail 32 is mounted on the second vertical column 31. The second sliding block 33 is mounted on the second guide rail 32. The first compression spring 34 is arranged between the second sliding block 33 and the second vertical column 31 along the sliding direction of the second sliding block 33. The first support frame 35 is mounted on the second sliding block 33. The first cleaning head 36 and the second cleaning head 37 are mounted on the first support frame 35 and are arranged opposite to each other. The first cleaning head 36 and the second cleaning head 37 clean the upper and lower surfaces of the battery cell 1, respectively. The first roller 39 is hingedly connected to the first support frame 35 through the first rotating shaft 38.

[0040] The gluing mechanism 4 comprises a third vertical column 41, a third guide rail 42, a third sliding block 43, a second compression spring 44, a second support frame 45, a gluing head 46, a second rotating shaft 47, and a second roller 48. The third guide rail 42 is mounted on the third vertical column 41. The third sliding block 43 is mounted on the third guide rail 42. The second compression spring 44 is arranged between the third sliding block 43 and the third vertical column 41 along the sliding direction of the third sliding block 43. The second support frame 45 is mounted on the third sliding block 43. The gluing head 46 is mounted on the second support frame 45 to glue the battery cell 1. The second roller 48 is hingedly connected to the second support frame 45 through the second rotating shaft 47.

[0041] The blanking mechanism 5 comprises a fourth column 51, a fourth guide rail 52, a fourth sliding block 53, a third compression spring 54, a third support frame 55, a back plate 56, a blanking groove 57, a third rotating shaft 58, and a third roller 59. The fourth guide rail 52 is installed on the fourth column 51. The fourth sliding block 53 is installed on the fourth guide rail 52. The third compression spring 54 is arranged between the fourth sliding block 53 and the fourth column 51 along the sliding direction of the fourth sliding block 43. The third support frame 55 is installed on the fourth sliding block 53. The blanking groove 57 is installed on the fourth guide rail 52. The blanking groove 57 is provided with an opening at the front end. The back plate 56 is installed on the third support frame 55 and seals the opening of the blanking groove 57. The third roller 59 is hinged to the third support frame 55 through the third rotating shaft 58.

[0042] The multi-station rotating mechanism 6 comprises a mounting frame 61, a motor 62, a grooved wheel 63, a cam 64, a gear ring 65, a support column 66, a rotating disc 67, a first electromagnet 68, a rotating frame 69, a second electromagnet 610, a third rotating shaft 611, a fourth rotating shaft 612, and a gear 613. The motor 62 is installed on the mounting frame 61. The grooved wheel 63, the cam 64, and the rotating disc 67 are coaxially installed on the main shaft of the motor 62. The grooved wheel 63 is provided with an arc-shaped groove 631 in which the fifth mounting shaft 215 can be arranged. The rotation of the grooved wheel 63 can provide power for the feeding mechanism 2. The cam 64 is provided with petal-shaped protrusions 641. The first roller 39, the second roller 48, and the third roller 59 are in contact with the protrusions 641. The rotation of the cam 64 pushes the first roller 39, the second roller 48, and the third roller 59, thereby providing power for the cleaning mechanism 3, the gluing mechanism 4, and the blanking mechanism 5. The gear ring 65 is installed on the support column 66, which is installed on the mounting frame 61. The rotating disc 67 is uniformly provided with notches. Each notch is provided with a rotating frame 69. The rotating frame 69 is rotatably connected to the rotating disc 67 through the third rotating shaft 611 and the fourth rotating shaft 612. The gear 613 is installed on the fourth rotating shaft 612. When the rotating disc 67 rotates, the gear 613 can engage with the gear ring 65 to flip the rotating frame 69. The second electromagnet 610 is installed on the rotating frame 69 to attract the battery cell 1. The first electromagnet 68 is installed on the rotating disc 67 and arranged on both sides of the battery cell 1 to prevent the rotating frame 69 from rotating when it is not flipped.

[0043] More preferably, the first support frame 35, the second support frame 45, and the third support frame 55 are arranged in a U shape.

[0044] More preferably, the petal-shaped protrusions 641 of the cam 64 are arranged in four, with each protrusion corresponding to each station.

[0045] More preferably, the arc-shaped groove 631 of the grooved wheel 63 has four wave crests and troughs, with each wave crest corresponding to each station.

Claims

1. A multi-station production line for lithium battery assembly, comprising an electrode core (1), a feeding mechanism (2), a cleaning mechanism (3), a gluing mechanism (4), a blanking mechanism (5) and a multi-station rotating mechanism (6), characterized in that: The electric core (1) is arranged on the feeding mechanism (2), four stations are arranged on the multi-station rotating mechanism (6), the feeding mechanism (2), the cleaning mechanism (3), the gluing mechanism (4) and the discharging mechanism (5) are arranged on the four stations of the multi-station rotating mechanism (6) one by one; the feeding mechanism (2) is arranged on the initial station of the multi-station rotating mechanism (6) to automatically place the electric core (1) on the multi-station rotating mechanism (6); when the multi-station rotating mechanism (6) rotates to the cleaning station, the cleaning mechanism (3) cleans the electric core (1) on the multi-station rotating mechanism (6); when the multi-station rotating mechanism (6) rotates to the gluing station, the gluing mechanism (4) glues the electric core (1) on the multi-station rotating mechanism (6); in the process that the multi-station rotating mechanism (6) rotates to the discharging station, the electric core (1) is turned over; when the multi-station rotating mechanism (6) rotates to the discharging station, the electric core (1) falls off from the multi-station rotating mechanism (6) and enters the discharging mechanism (5); the discharging mechanism (5) aligns the stacked electric cores (1); the power sources of the feeding mechanism (2), the cleaning mechanism (3), the gluing mechanism (4) and the discharging mechanism (5) are provided by the multi-station rotating mechanism (6); The feeding mechanism (2) comprises a funnel (21), a first stand column (22), a blocking column (23), a first guide rail (24), a first sliding block (25), a push plate (26), a first swing lever (27), a first mounting shaft (28), a first mounting plate (29), a second mounting shaft (210), a second mounting plate (211), a third mounting shaft (212), a second swing lever (213), a fourth mounting shaft (214) and a fifth mounting shaft (215). The funnel (21) is mounted at the top end of the first stand column (22), the electric core (1) is placed in the funnel (21), the bottom of the funnel (21) is open, and the opening part is used for leaking the electric core (1); the blocking column (23) is mounted on the first stand column (22) and arranged at the bottom of the funnel (21) and used for receiving the leaked electric core (1); the first guide rail (24) is arranged on both sides of the funnel (21), the first sliding block (25) is placed on the first guide rail (24), and the first guide rail (24) is slidably connected with the first sliding block (25); the push plate (26) is arranged behind the leaked electric core (1) and connected with the first sliding block (25), the push plate (26) pushes the first sliding block (25), the first sliding block (25) slides, the leaked electric core (1) is pushed away from the blocking column (23) and enters the multi-station rotating mechanism (6); the first mounting plate (29) is mounted on the first stand column (22), the first mounting plate (29) is hingedly connected with the first swing lever (27) through the second mounting shaft (210), the first swing lever (27) is provided with a U-shaped groove at both ends, the first mounting shaft (28) is fixedly arranged on the first sliding block (25) and arranged in the U-shaped groove at the upper end of the first swing lever (27), the second mounting plate (211) is mounted on the first stand column (22), the second mounting plate (211) is hingedly connected with the second swing lever (213) through the third mounting shaft (212), the second swing lever (213) is fixedly provided with the fourth mounting shaft (214) and the fifth mounting shaft (215) at both ends, and the fourth mounting shaft (214) is arranged in the U-shaped groove at the lower end of the first swing lever (27); The cleaning mechanism (3) comprises a second column (31), a second guide rail (32), a second sliding block (33), a first compression spring (34), a first support frame (35), a first cleaning head (36), a second cleaning head (37), a first rotating shaft (38) and a first roller (39), the second guide rail (32) is installed on the second column (31), the second sliding block (33) is placed on the second guide rail (32), the second sliding block (33) is in sliding connection with the second guide rail (32), the first compression spring (34) is arranged between the second sliding block (33) and the second column (31) along the sliding direction of the second sliding block (33), the first support frame (35) is in U-shaped structure arranged horizontally, the tail of the first support frame (35) is installed on the second sliding block (33), the first cleaning head (36) and the second cleaning head (37) are respectively installed on the upper part and the lower part of the U-shaped structure of the first support frame (35), and the first cleaning head (36) and the second cleaning head (37) are opposite to each other, for cleaning the upper and lower surfaces of the battery cell (1), and the first roller (39) is hinged to the head end of the first support frame (35) through the first rotating shaft (38); The gluing mechanism (4) comprises a third column (41), a third guide rail (42), a third sliding block, a second compression spring (44), a second support frame (45), a gluing head (46), a second rotating shaft (47) and a second roller (48), the third guide rail (42) is installed on the third column (41), the third sliding block is placed on the third guide rail (42), the third sliding block is in sliding connection with the third guide rail (42), the second compression spring (44) is arranged between the third sliding block and the third column (41) along the sliding direction of the third sliding block, the second support frame (45) is in U-shaped structure arranged horizontally, the tail of the second support frame (45) is installed on the third sliding block, the gluing head (46) is installed on the second support frame (45), and the gluing head (46) is used for gluing the battery cell (1); and the second roller (48) is hinged to the head end of the second support frame (45) through the second rotating shaft (47); The blanking mechanism (5) comprises a fourth column (51), a fourth guide rail (52), a fourth sliding block, a third compression spring (54), a third support frame (55), a back plate (56), a falling groove (57), a third rotating shaft and a third roller (59), the fourth guide rail (52) is installed on the fourth column (51), the fourth sliding block is placed on the fourth guide rail (52), the fourth sliding block is in sliding connection with the fourth guide rail (52), the third compression spring (54) is arranged between the fourth sliding block and the fourth column (51) along the sliding direction of the fourth sliding block, the third support frame (55) is installed on the fourth sliding block, the falling groove (57) is installed on the fourth guide rail (52), the falling groove (57) is provided with an opening at the front end, the back plate (56) is installed on the third support frame (55), and the back plate (56) is sealed at the opening of the falling groove (57), and the third roller (59) is hinged to the third support frame (55) through the third rotating shaft. The multi-station rotating mechanism (6) comprises a mounting frame (61), a motor (62), a grooved wheel (63), a cam (64), a gear ring (65), a support column (66), a rotating disc (67), a first electromagnet (68), a rotating frame (69), a second electromagnet (610), a third rotating shaft, a fourth rotating shaft (612) and a gear (613), the motor (62) is mounted on the mounting frame (61), the grooved wheel (63), the cam (64) and the rotating disc (67) are coaxially mounted on the main shaft of the motor (62) from bottom to top, the grooved wheel (63) is provided with an arc-shaped groove (631), a fifth mounting shaft (215) is arranged in the arc-shaped groove (631), the grooved wheel (63) can provide power for the feeding mechanism (2) in rotation, the cam (64) is provided with petal-shaped protrusions (641), the first roller (39), the second roller (48) and the third roller (59) are in contact with the protrusions (641) respectively, the cam (64) pushes the first roller (39), the second roller (48) and the third roller (59) in rotation to provide power for the cleaning mechanism (3), the gluing mechanism (4) and the material dropping mechanism (5), the gear ring (65) is mounted on the support column (66), the support column (66) is mounted on the mounting frame (61), the rotating disc (67) is uniformly distributed with notches, each notch is provided with a rotating frame (69), the rotating frame (69) is rotatably connected with the rotating disc (67) through the third rotating shaft and the fourth rotating shaft (612), the gear (613) is mounted on the fourth rotating shaft (612), when the rotating disc (67) rotates, the gear (613) can mesh with the gear ring (65) to overturn the rotating frame (69), the second electromagnet (610) is mounted on the rotating frame (69) to adsorb the battery cell (1), the first electromagnet (68) is mounted on the rotating disc (67) and arranged on both sides of the battery cell (1) to adsorb the battery cell (1) and prevent the rotating frame (69) from rotating when not overturning.

2. A multi-station production line for lithium battery assembly according to claim 1, characterized in that: The petal-shaped protrusions (641) of the cam (64) are uniformly arranged with four protrusions, each protrusion corresponds to each station.

3. A multi-station production line for lithium battery assembly according to claim 1, characterized in that: The arc-shaped groove (631) of the grooved wheel (63) has four wave crests and wave troughs, each wave crest corresponds to each station. The arc-shaped groove (631) of the grooved wheel (63) has four wave crests and wave troughs, each wave crest corresponds to each station.

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