Battery cell shell-entering production line and battery cell shell-entering method

Abstract

The invention relates to the technical field of battery production, in particular to a battery cell shell entering production line and a battery cell shell entering method.The battery cell shell entering production line comprises a shell punching mechanism, a membrane shell top cutting mechanism, a battery cell feeding mechanism and a packaging mechanism which are sequentially arranged, a feeding position is arranged between the battery cell feeding mechanism and the packaging mechanism, and a packaging clamp is movably arranged between the feeding position and the packaging mechanism; a membrane shell discharging manipulator is movably arranged between the shell punching mechanism and the membrane shell top cutting mechanism, and a battery cell shell entering and membrane shell transferring device is movably arranged among the membrane shell top cutting mechanism, the battery cell feeding mechanism and the feeding station; a battery cell absorbing area and a membrane shell absorbing area are arranged at the transferring end of the battery cell shell-entering and membrane shell transferring device, the battery cell absorbing area is used for absorbing a battery cell, and the membrane shell absorbing area is used for absorbing a membrane shell. According to the invention, through the device for loading the battery cell into the shell and transferring the membrane shell, the battery cell can be loaded into the shell, and the battery cell and the membrane shell which are loaded into the shell can be synchronously transferred to the packaging clamp, so that the use quantity of manipulators is reduced, the cost is reduced, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery production, and in particular to a battery core shelling production line and a battery core shelling method. Background Art

[0002] Lithium batteries have the advantages of long service life and high energy density, so they are widely used in portable electronic devices, automobiles and other fields. Lithium batteries include battery cells and membrane shells, and their production process includes steps such as loading the battery cells into the membrane shell and packaging.

[0003] Among the existing patents, the Chinese patent document with application number 201710193077.9 discloses a battery cell shelling device and a battery cell shelling method, wherein the battery cell shelling device comprises a loading part, a conveying part and a handling part, wherein the conveying part comprises a conveying device and at least two bearing devices, wherein the bearing device is configured to carry the battery cell shell, and the conveying device is configured to simultaneously drive at least two bearing devices to circulate between the loading part and the handling part. The conveying part conveys at least two bearing devices. The patent document separates the picked-up battery cells through the loading part, and the separated battery cells are placed into the battery cell shells on the carrying device located below the loading part, and controls the conveying part to move out the battery cell shells on the first carrying device located at the unloading position of the battery cell shells, and controls the conveying part to place the empty battery cell shells on the first carrying device that has been moved out of the battery cell shells; that is, the patent document first places the empty battery cell shells on the carrying device through the conveying part, and then places the battery cells in the pits of the empty battery cell shells through the loading part, and finally takes away the shelled battery cells and battery cell shells through the conveying part. The two carrying devices need to be switched back and forth to improve the efficiency of battery cell shelling, but the number of carrying devices and conveying devices is increased, which increases the cost.

[0004] Therefore, the defects are very obvious and a solution is urgently needed. Summary of the invention

[0005] In order to solve the above technical problems, the object of the present invention is to provide a battery cell shelling production line and a battery cell shelling method.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A battery cell shelling production line comprises a shell punching mechanism, a film shell top cutting mechanism, a battery cell feeding mechanism and a packaging mechanism which are arranged in sequence, a loading position is arranged between the battery cell feeding mechanism and the packaging mechanism, a packaging fixture is movably arranged between the loading position and the packaging mechanism, a film shell discharging manipulator is movably arranged between the shell punching mechanism and the film shell top cutting mechanism, a battery cell shelling and film shell transferring device is movably arranged between the film shell top cutting mechanism, the battery cell feeding mechanism and the loading position; a battery cell shelling and film shell transferring device is movably arranged with a battery cell absorbing area and a film shell absorbing area at the transfer end, the film shell absorbing area is distributed on both sides of the battery cell absorbing area, the battery cell absorbing area is used for absorbing the battery cell, and the film shell absorbing area is used for absorbing the film shell.

[0008] Furthermore, the battery cell shelling and membrane shell transferring device includes a mobile drive mechanism, a machine base, a lifting drive mechanism, a lifting arm and a suction plate. The machine base is connected to the mobile end of the mobile drive mechanism, the lifting drive mechanism is installed on the machine base, the lifting arm is installed on the lifting end of the lifting drive mechanism, and the suction plate is installed on the lifting arm. The suction plate is provided with a vacuum air duct, a plurality of battery cell suction cups and a plurality of membrane shell suction cups. The plurality of battery cell suction cups and the plurality of membrane shell suction cups are all connected with the vacuum air duct, and the plurality of membrane shell suction cups are distributed on both sides of the plurality of battery cell suction cups. The plurality of battery cell suction cups form a battery cell suction area, and the plurality of membrane shell suction cups form a membrane shell suction area.

[0009] Furthermore, the lifting arm is connected to the machine base in a lifting and sliding manner via a vertical guide rail.

[0010] Furthermore, the lifting drive mechanism includes a screw rod vertically rotatably connected to the machine base, a movable nut threadedly sleeved on the screw rod, and a motor installed on the machine base. The output shaft of the motor is fixedly connected to one end of the screw rod via a coupling, and the lifting arm is fixedly connected to the movable nut.

[0011] Furthermore, the machine base is equipped with a vacuum degree measuring instrument for detecting the vacuum degree of the vacuum air passage.

[0012] Furthermore, the battery cell feeding mechanism includes a feeding translation module and a feeding table connected to the translation end of the feeding translation module, and the feeding table is used to carry the battery cells.

[0013] The present invention also provides a battery cell shelling method, based on the application of the above-mentioned battery cell shelling production line, comprising the following steps:

[0014] A. The shell punching mechanism punches and forms the membrane shell to punch out a pit on the membrane shell; the membrane shell discharging manipulator picks up the membrane shell with the pit from the shell punching mechanism to the membrane shell top cutting mechanism;

[0015] B. The membrane shell top cutting mechanism performs top cutting on the membrane shell;

[0016] C. While step A is working, the battery cell feeding mechanism supplies the battery cells to the feeding position; the battery cell sucking area of ​​the battery cell shelling and film shell transfer device first sucks the battery cells at the feeding position, and then transfers the battery cells to the pit of the film shell after top cutting, so as to shell the battery, and suck the film shell through the film shell sucking area;

[0017] D. The battery cell shelling and film shell transfer device simultaneously absorbs the shelled battery cell and film shell and synchronously transfers them to the packaging fixture;

[0018] E. The packaging fixture folds the film shell in half to cover the battery cell;

[0019] F. The packaging transfer robot drives the packaging fixture to move to the packaging mechanism;

[0020] G. The packaging mechanism packages the folded membrane shell.

[0021] The beneficial effects of the present invention are as follows: the battery cell shelling and film shell transfer device can complete the battery cell shelling and the synchronous transfer of the shelled battery cell and the film shell to the packaging fixture, thereby reducing the number of manipulators used, reducing costs, and greatly improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the battery cell shelling production line of the present invention.

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the battery core shell insertion and membrane shell transfer device of the present invention after the mobile drive mechanism is hidden.

[0024] Figure 3 It is a three-dimensional structural schematic diagram from another perspective of the battery core shell insertion and membrane shell transfer device of the present invention after the mobile drive mechanism is hidden.

[0025] Description of reference numerals:

[0026] 1. Machine base; 2. Lifting drive mechanism; 3. Lifting arm; 4. Suction plate; 5. Vacuum air duct; 6. Cell suction cup; 7. Membrane shell suction cup; 8. Cell suction area; 9. Membrane shell suction area; 10. Vertical guide rail; 11. Screw; 12. Moving nut; 13. Motor; 14. Vacuum degree measuring instrument; 15. Shell punching mechanism; 16. Membrane shell discharging robot; 17. Membrane shell top cutting mechanism; 18. Cell feeding mechanism; 19. Packaging fixture; 20. Packaging transfer robot; 21. Packaging mechanism; 22. Loading position; 23. Feeding translation module; 24. Feeding table; 25. Moving drive mechanism; 26. Cell shelling and membrane shell transfer device. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0028] like Figures 1 to 3 As shown, a battery cell shelling production line provided by the present invention comprises a shell punching mechanism 15, a film shell top cutting mechanism 17, a battery cell feeding mechanism 18 and a packaging mechanism 21 which are arranged in sequence, a loading position 22 is arranged between the battery cell feeding mechanism 18 and the packaging mechanism 21, a packaging fixture 19 is movably arranged between the loading position 22 and the packaging mechanism 21, a film shell discharging manipulator 16 is movably arranged between the shell punching mechanism 15 and the film shell top cutting mechanism 17, a battery cell shelling and film shell transfer device 26 is movably arranged between the film shell top cutting mechanism 17, the battery cell feeding mechanism 18 and the loading position 22; a battery cell shelling and film shell transfer device 26 is movably arranged at the transfer end thereof, a battery cell suction area 8 and a film shell suction area 9 are arranged, and the film shell suction area 9 are distributed on both sides of the battery cell suction area 8, the battery cell suction area 8 is used to suck the battery cell, and the film shell suction area 9 is used to suck the film shell. Specifically, the shell punching mechanism 15 is provided with a film shell punching die.

[0029] In actual application, the membrane shell to be punched is placed in the membrane shell punching mold after the mold is opened by the shell punching mechanism 15, and then the membrane shell punching mold is closed to punch the membrane shell, so as to punch out a pit on the membrane shell, and the membrane shell discharge robot 16 picks up the membrane shell with the pit formed on the membrane shell punching mold after the mold is opened and puts it on the membrane shell top cutting mechanism 17, and the membrane shell top cutting mechanism 17 top cuts the membrane shell. At the same time, the battery cell feeding mechanism 18 supplies the battery cell to the feeding position, and then the battery cell is put into the shell and the membrane shell is transferred. The battery cell suction area 8 of the device 26 first sucks the battery cell at the feeding position, and then moves the battery cell to the pit of the film shell after the top cut to realize the shell entry of the battery cell, and sucks the film shell after the punching through the film shell suction area 9, so that the battery cell and the film shell after shell entry are sucked at the same time and synchronously transferred to the packaging fixture 19, the packaging fixture 19 folds the film shell in half to cover the battery cell, and then the packaging transfer robot 20 drives the packaging fixture 19 to move to the packaging mechanism 21, and the packaging mechanism 21 packages the folded film shell.

[0030] In the present embodiment, the battery cell shelling and membrane shell transferring device 26 includes a mobile driving mechanism 25, a machine base 1, a lifting driving mechanism 2, a lifting arm 3 and a suction plate 4. The machine base 1 is connected to the mobile end of the mobile driving mechanism 25, the lifting driving mechanism 2 is installed on the machine base 1, the lifting arm 3 is installed at the lifting end of the lifting driving mechanism 2, and the suction plate 4 is installed on the lifting arm 3. The suction plate 4 is provided with a vacuum air duct 5, a plurality of battery cell suction cups 6 and a plurality of membrane shell suction cups 7. The plurality of battery cell suction cups 6 and the plurality of membrane shell suction cups 7 are all connected with the vacuum air duct 5, and the plurality of membrane shell suction cups 7 are distributed on both sides of the plurality of battery cell suction cups 6. The plurality of battery cell suction cups 6 form a battery cell suction area 8, and the plurality of membrane shell suction cups 7 form a membrane shell suction area 9. The mobile driving mechanism 25 is used to drive the machine base 1 to move back and forth horizontally, and the vacuum air duct 5 is connected with the vacuum pumping mechanism via an air pipe.

[0031] In actual application, the mobile drive mechanism 25 drives the machine base 1 to move with the suction plate 4, and the lifting drive mechanism 2 drives the machine base 1 to lift and lower the suction plate 4, so that the suction plate 4 first moves to the top of the battery cell and absorbs the battery cell through the battery cell suction area 8, and then the suction plate 4 moves to the top of the film shell with the pit and absorbs the film shell through the film shell suction area 9. At this time, the battery cell is just placed in the pit of the film shell to achieve the shell entry of the battery cell, and then under the coordinated cooperation of the mobile drive mechanism 25 and the lifting drive mechanism 2, the suction plate 4 can synchronously transfer the battery cell and the film shell together. Compared with the prior art, a manipulator is required to pick up the film shell after punching the pit or the film shell after top cutting to the packaging fixture 19, and another manipulator is required to pick up the battery cell to the pit of the film shell, the battery cell shell entry and film shell transfer device 26 can complete the shell entry of the battery cell and the synchronous transfer of the battery cell and the film shell after shell entry to the packaging fixture 19, which reduces the number of manipulators used, reduces costs, and greatly improves production efficiency.

[0032] In this embodiment, the lifting arm 3 is connected to the base 1 in a lifting and sliding manner via the vertical guide rail 10. In the process of lifting the lifting arm 3, the vertical guide rail 10 plays a guiding role, thereby improving the stability of the lifting arm 3 in lifting.

[0033] In this embodiment, the lifting drive mechanism 2 includes a screw rod 11 vertically rotatably connected to the machine base 1, a moving nut 12 threadedly sleeved on the screw rod 11, and a motor 13 installed on the machine base 1. The output shaft of the motor 13 is fixedly connected to one end of the screw rod 11 via a coupling, and the lifting arm 3 is fixedly connected to the moving nut 12. In actual application, the motor 13 drives the screw rod 11 to rotate, and the rotating screw rod 11 drives the moving nut 12 to move the lifting arm 3 along the axial direction of the screw rod 11.

[0034] In this embodiment, the base 1 is equipped with a vacuum degree measuring instrument 14 for detecting the vacuum degree of the vacuum air passage 5. The vacuum degree measuring instrument 14 detects the vacuum degree in the vacuum air passage 5 in real time to ensure that the battery core suction area 8 and the membrane shell suction area 9 have sufficient suction force to tightly suck the battery core and the membrane shell, and the vacuum degree measuring instrument 14 displays the size of the vacuum degree, which is convenient for adjusting the size of the vacuum degree.

[0035] In this embodiment, the battery cell feeding mechanism 18 includes a feeding translation module 23 and a feeding table 24 connected to the translation end of the feeding translation module 23, and the feeding table 24 is used to carry the battery cells. In actual applications, the feeding table 24 carries the battery cells, and the feeding translation module 23 drives the feeding table 24 to move the battery cells from the outside to the feeding position, and then the mobile driving mechanism 25 drives the machine base 1 to move the suction plate 4 to the feeding position, so that the battery cell suction area 8 of the suction plate 4 of the battery cell shelling and film shell transfer device 26 can suck the battery cells on the feeding table 24.

[0036] Specifically, the feed translation module 23 may adopt a screw rod 11 module. .

[0037] The present invention also provides a battery cell shelling method, based on the application of the above-mentioned battery cell shelling production line, comprising the following steps:

[0038] A. The shell punching mechanism 15 punches and forms the membrane shell to punch out a pit on the membrane shell; the membrane shell discharging manipulator 16 picks up the membrane shell with the pit from the shell punching mechanism 15 to the membrane shell top cutting mechanism 17;

[0039] B. The membrane shell top cutting mechanism 17 performs top cutting on the membrane shell;

[0040] C. While step A is working, the battery cell feeding mechanism 18 supplies the battery cells to the feeding position; the battery cell sucking area 8 of the battery cell shelling and film shell transferring device 26 first sucks the battery cells at the feeding position, and then transfers the battery cells to the pit of the film shell after top cutting, so as to shell the battery, and suck the film shell through the film shell sucking area 9;

[0041] D. The battery cell shelling and film shell transferring device 26 simultaneously absorbs the shelled battery cell and film shell and synchronously transfers them to the packaging fixture 19;

[0042] E. The packaging fixture 19 folds the film shell in half to cover the battery cell;

[0043] F. The packaging transfer robot 20 drives the packaging fixture 19 to move to the packaging mechanism 21;

[0044] G. The packaging mechanism 21 packages the folded film shell.

[0045] The present invention can complete the shelling of battery cells and the synchronous transfer of the shelled battery cells and the film shells to the packaging fixture 19 through the battery cell shelling and film shell transfer device 26, thereby reducing the number of manipulators used, reducing costs, and greatly improving production efficiency.

[0046] All technical features in this embodiment can be freely combined according to actual needs.

[0047] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention may also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A battery cell shell production line, characterized by: The invention comprises a shell punching mechanism (15), a film shell top cutting mechanism (17), a cell feeding mechanism (18) and a packaging mechanism (21) which are arranged in sequence; a loading position (22) is arranged between the cell feeding mechanism (18) and the packaging mechanism (21); a packaging fixture (19) is movably arranged between the loading position (22) and the packaging mechanism (21); a film shell discharging manipulator (16) is movably arranged between the shell punching mechanism (15) and the film shell top cutting mechanism (17); a cell shell feeding and film shell transfer device (26) is movably arranged between the film shell top cutting mechanism (17), the cell feeding mechanism (18) and the loading position (22); a cell shell suction area (8) and a film shell suction area (9) are arranged at the transfer end of the cell shell feeding and film shell transfer device (26); the film shell suction areas (9) are distributed on both sides of the cell shell suction area (8); the cell shell suction area (8) is used to suck the cell, and the film shell suction area (9) is used to suck the film shell.

2. A battery cell shelling production line according to claim 1, characterized in that: The battery cell shelling and membrane shell transfer device (26) comprises a moving drive mechanism (25), a machine base (1), a lifting drive mechanism (2), a lifting arm (3) and a suction plate (4). The machine base (1) is connected to the moving end of the moving drive mechanism (25), the lifting drive mechanism (2) is mounted on the machine base (1), the lifting arm (3) is mounted on the lifting end of the lifting drive mechanism (2), the suction plate (4) is mounted on the lifting arm (3), the suction plate (4) is provided with a vacuum air duct (5), a plurality of battery cell suction cups (6) and a plurality of membrane shell suction cups (7), the plurality of battery cell suction cups (6) and the plurality of membrane shell suction cups (7) are all connected to the vacuum air duct (5), the plurality of membrane shell suction cups (7) are distributed on both sides of the plurality of battery cell suction cups (6), the plurality of battery cell suction cups (6) form a battery cell suction area (8), and the plurality of membrane shell suction cups (7) form a membrane shell suction area (9).

3. A battery cell shelling production line according to claim 2, characterized in that: The lifting arm (3) is connected to the machine base (1) in a lifting and sliding manner via a vertical guide rail (10).

4. A battery cell shelling production line according to claim 3, characterized in that: The lifting drive mechanism (2) comprises a screw rod (11) vertically rotatably connected to a machine base (1), a movable nut (12) threadedly sleeved on the screw rod (11), and a motor (13) mounted on the machine base (1); an output shaft of the motor (13) is fixedly connected to one end of the screw rod (11) via a coupling, and a lifting arm (3) is fixedly connected to the movable nut (12).

5. The battery cell shelling production line according to claim 2, characterized in that: The machine base (1) is provided with a vacuum degree measuring instrument (14) for detecting the vacuum degree of the vacuum air passage (5).

6. The battery cell shelling production line according to claim 1, characterized in that: The battery cell feeding mechanism (18) comprises a feeding translation module (23) and a feeding platform (24) connected to the translation end of the feeding translation module (23), and the feeding platform (24) is used for carrying the battery cells.

7. A method for inserting a battery cell into a shell, characterized in that: Based on the application of the battery cell shell production line according to any one of claims 1 to 6, the method comprises the following steps: A. The shell punching mechanism (15) punches and forms the membrane shell to punch and form a recess on the membrane shell; the membrane shell discharging robot (16) picks up the membrane shell with the recess from the shell punching mechanism (15) and places it on the membrane shell top cutting mechanism (17); B. The membrane shell top cutting mechanism (17) performs top cutting on the membrane shell; C. While step A is working, the battery cell feeding mechanism (18) supplies the battery cells to the feeding position; the battery cell sucking area (8) of the battery cell shelling and film shell transfer device (26) first sucks the battery cells at the feeding position, and then transfers the battery cells to the pit of the film shell after top cutting, so as to shell the battery, and sucks the film shell through the film shell sucking area (9); D. The battery cell shelling and film shell transferring device (26) simultaneously absorbs the shelled battery cell and the film shell and synchronously transfers them to the packaging fixture (19); E. The packaging fixture (19) folds the film shell in half to cover the battery cell; F. The packaging transfer robot (20) drives the packaging fixture (19) to move to the packaging mechanism (21); G. The packaging mechanism (21) packages the folded film shell.

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