An automatic film wrapping mechanism for both left and right sides of an aluminum shell battery cell

Abstract

The present invention relates to the technical field of aluminum shell battery cell processing, and particularly to an automatic film wrapping mechanism for the left and right sides of an aluminum shell battery cell. It includes a jaw mechanism, a turntable, a lower film folding mechanism for synchronously folding two lower film folding plates upward, an upper side film folding mechanism for synchronously folding two upper film folding plates downward, and a fixture fixed on the turntable; the jaw mechanism is used to press the folded lower film folding plate and upper film folding plate onto the battery cell. When the present invention is used, the structure can automatically fold and press the folding plates on the left and right sides of the battery cell film wrapping, facilitating the subsequent hot melting process, greatly reducing the labor intensity, improving the production efficiency, and making the quality of the insulating film more stable in the subsequent welding.

Description

Technical Field

[0001] The present invention relates to the technical field of aluminum shell battery cell processing, and particularly relates to an automatic film wrapping mechanism for the left and right sides of an aluminum shell battery cell. Background Art

[0002] Lithium batteries are batteries with high energy density, high working voltage, no memory effect, long cycle life, no pollution, light weight, and low self-discharge, and are currently widely used in various industries. In the production and manufacturing process of batteries, wrapping the cell with an insulating film (Mylar film) is a very crucial process, which plays a very important role in battery performance and safety. Currently, most of this process is manual film wrapping of battery cells. During the film wrapping process, the upper film folding plate A2 at one end of the cell is folded downwards, and the lower film folding plate A1 is folded upwards, and then welded and fixed; then the upper film folding plate A2 at the other end of the cell is folded downwards, and the lower film folding plate A1 is folded upwards, and then welded and fixed, with many processes. This manual operation method has low production efficiency, high labor intensity, high processing cost, and the quality of battery film wrapping is not stable enough and difficult to guarantee. Summary of the Invention

[0003] The purpose of the present invention is to provide an automatic film wrapping mechanism for the left and right sides of an aluminum shell battery cell in view of the defects and deficiencies of the prior art.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is:

[0005] An automatic film wrapping mechanism for the left and right sides of an aluminum shell battery cell of the present invention includes a clamping jaw mechanism, a turntable, a lower film folding mechanism for synchronously folding two lower film folding plates upwards, an upper side film folding mechanism for synchronously folding two upper film folding plates downwards, and a fixture fixed on the turntable; the clamping jaw mechanism is used to press the folded lower film folding plate and upper film folding plate onto the cell.

[0006] Further, folding film pressing mechanisms are arranged on both the left and right sides of the fixture; the folding film pressing mechanism includes a sliding seat and a side pressure guide rail; the side pressure guide rail is fixed on the fixture, and a side pressure sliding block matching the side pressure guide rail is fixed on the sliding seat; the side pressure sliding block is embedded on the side pressure guide rail; a side pressure sliding shaft is slidably connected to the sliding seat; one end of the side pressure sliding shaft is fixed with a side pressure push block; the other end of the side pressure sliding shaft is fixed with a side pressure plate; a spring is sleeved on the shaft body of the side pressure sliding shaft; both ends of the spring are respectively pressed against the side pressure plate and the sliding seat; two claw parts of the clamping jaw mechanism are respectively used to drive the side pressure sliding shaft to slide on the sliding seat.

[0007] Further, the jaw mechanism includes a fixing frame; two second lifting mechanisms are fixed on the fixing frame; third transverse translation cylinders are fixed on the second lifting mechanisms; a plug board is fixed at the piston rod end of the third transverse translation cylinder; slide seat chutes are arranged on the slide seats; the width of the slide seat chutes is equal to the thickness of the plug board; the two plug boards are respectively inserted into the two slide seat chutes.

[0008] Further, a lifting positioning pin mechanism is arranged at the bottom of the slide seat; the lifting positioning pin mechanism includes a lock pin guide sleeve, a lock pin slidably connected to the lock pin guide sleeve, and a jig opening mechanism for driving the lock pin to move up and down; a pin hole matching the lock pin is arranged at the bottom of the slide seat; a lock pin support plate is fixed at the bottom of the lock pin; the jig opening mechanism includes a first bottom plate, a first transverse translation plate capable of sliding horizontally on the first bottom plate, and a first transverse translation cylinder for driving the first transverse translation plate to slide on the first bottom plate; a first lifting mechanism is fixed on the first transverse translation plate; a pulling plate is fixed on the first lifting mechanism.

[0009] Further, the lower film folding mechanism includes a lower film folding cylinder, a lower fixing plate, a lower film folding lifting plate, and a lower guide sleeve fixed on the lower fixing plate; two second transverse translation cylinders are fixed on the lower film folding lifting plate; lower folding plates capable of sliding on the lower film folding lifting plate are fixed at the piston rod ends of the second transverse translation cylinders; a lower film folding guide shaft matching the lower guide sleeve is fixed at the bottom of the lower film folding lifting plate; the lower film folding guide shaft is inserted into the lower guide sleeve; one end of the lower film folding cylinder is fixedly connected to the lower fixing plate; the other end of the lower film folding cylinder is fixedly connected to the lower film folding lifting plate.

[0010] Further, the upper side film folding mechanism includes an upper side film folding frame and a third lifting mechanism fixed on the upper side film folding frame; an upper folding lifting plate is arranged on the third lifting mechanism; two third transverse translation mechanisms are fixed on the upper folding lifting plate; upper folding plates are fixed on the third transverse translation mechanisms.

[0011] Further, an upper pressing block is arranged between the two upper folding plates; a pressing block guide sleeve is fixed on the upper side film folding frame; a pressing block guide shaft is slidably connected in the pressing block guide sleeve; the upper pressing block is fixedly connected to the pressing block guide shaft; a lower pressing spring is sleeved on the shaft body of the pressing block guide shaft; the two ends of the bottom end of the lower pressing spring are respectively pressed against the upper side film folding frame and the upper pressing block.

[0012] After adopting the above structure, the beneficial effects of the present invention are as follows: An automatic film wrapping mechanism for the left and right sides of an aluminum shell battery cell core of the present invention includes a jaw mechanism, a turntable, a lower film folding mechanism for synchronously folding two lower film folding plates upward, an upper side film folding mechanism for synchronously folding two upper film folding plates downward, and a fixture fixed on the turntable; the jaw mechanism is used to press the folded lower film folding plate and upper film folding plate onto the cell core. When using the present invention, the cell core and the insulating film are fixed by the fixture fixing plate main body; after the lower film folding mechanism is driven, the lower film folding plates on both sides are synchronously folded upward and pressed onto the cell core. After the upper side film folding mechanism is driven, the upper film folding plates on both sides are synchronously folded and on the cell core, and then the jaw mechanism presses the folded lower film folding mechanism and upper film folding plate onto the cell core; in this structure, the folding and pressing of the folding plates on the left and right sides of the cell core film can be automatically performed, facilitating the subsequent hot melting process, greatly reducing the labor intensity, improving the production efficiency, and making the quality of the insulating film more stable during subsequent welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present invention;

[0014] Figure 2 is a schematic structural diagram of the fixture;

[0015] Figure 3 is a schematic structural diagram of the film folding and pressing mechanism;

[0016] Figure 4 is a schematic structural diagram of the fixture opening mechanism;

[0017] Figure 5 is a schematic structural diagram of the lower film folding mechanism;

[0018] Figure 6 is a schematic structural diagram of the jaw mechanism;

[0019] Figure 7 is a schematic structural diagram of the upper side film folding mechanism;

[0020] Figure 8 is a schematic structural diagram of the insulating film;

[0021] Description of the reference numerals:

[0022] 1. Fixture; 101. Fixture fixing plate main body; 102. Lock pin support plate; 103. Lock pin;

[0023] 104. Lock pin guide sleeve; 105. Slide seat; 105a. Slide seat card slot; 105b. Pin hole;

[0024] 106. Side pressure push block; 107. Side pressure sliding shaft; 108. Side pressure plate; 109. Side pressure slider;

[0025] 1010, Side pressure guide rail; 2, Fixture opening mechanism; 201, First bottom plate; 202, First transverse translation cylinder;

[0026] 203, First transverse translation plate; 204, First lifting mechanism; 205, Pulling plate; 3, Lower film folding mechanism;

[0027] 301, Lower film folding cylinder; 302, Lower fixing plate; 303, Lower guide sleeve; 304, Lower film folding lifting plate;

[0028] 305, Lower film folding guide shaft; 306, Second transverse translation cylinder; 307, Lower folding plate; 4, Jaw mechanism;

[0029] 401, Insertion plate; 402, Third transverse translation cylinder; 403, Second lifting mechanism; 404, Fixing frame;

[0030] 5, Upper side film folding mechanism; 501, Third lifting mechanism; 502, Upper side film folding machine frame;

[0031] 503, Third transverse translation mechanism; 504, Upper folding plate; 505, Upper pressing block; 506, Lower pressing spring;

[0032] 507, Pressing block guide sleeve; 508, Pressing block guide shaft; 509, Upper folding lifting plate; 6, Turntable;

[0033] A, Insulating film; A1, Lower film sheet folding plate; A2, Upper film sheet folding plate. Detailed implementation mode

[0034] The present invention will be further described below with reference to the accompanying drawings.

[0035] As Figures 1 to 8 shown, an automatic film wrapping mechanism for the left and right sides of an aluminum shell battery cell according to the present invention includes a jaw mechanism 4, a turntable 6, a lower film folding mechanism 3 for synchronously folding two lower film sheet folding plates A1 upward, an upper side film folding mechanism 5 for synchronously folding two upper film sheet folding plates A2 downward, and a fixture 1 fixed on the turntable 6; the jaw mechanism 4 is used to press the folded lower film sheet folding plate A1 and upper film sheet folding plate A2 against the battery cell; the battery cell and the insulating film A are fixed by the fixture fixing plate main body 101; after the lower film folding mechanism 3 is driven, the lower film sheet folding plates A1 on both sides are synchronously folded upward and pressed against the battery cell, and after the upper side film folding mechanism 5 is driven, the upper film sheet folding plates A2 on both sides are synchronously folded and on the battery cell, and then the jaw mechanism 4 presses the folded lower film folding mechanism 3 and upper film sheet folding plate A2 against the battery cell; in this structure, the folding and pressing of the folding plates on the left and right sides of the battery cell film can be automatically performed, facilitating the subsequent hot melting process, greatly reducing the labor intensity, improving the production efficiency, and making the quality of the insulating film more stable in the subsequent welding.

[0036] As a preferred embodiment of the present invention, folding film pressing mechanisms are provided on both the left and right sides of the fixture 1; the folding film pressing mechanism includes a sliding seat 105 and a side pressing guide rail 1010; the side pressing guide rail 1010 is fixed to the fixture 1, and a side pressing slider 109 matching the side pressing guide rail 1010 is fixed on the sliding seat 105; the side pressing slider 109 is embedded on the side pressing guide rail 1010; a side pressing sliding shaft 107 is slidably connected to the sliding seat 105; a side pressing push block 106 is fixed to one end of the side pressing sliding shaft 107; a side pressing plate 108 is fixed to the other end of the side pressing sliding shaft 107; a spring is sleeved on the shaft body of the side pressing sliding shaft 107; both ends of the spring are respectively pressed against the side pressing plate 108 and the sliding seat 105; the two claw parts of the claw mechanism 4 are respectively used to drive the side pressing sliding shaft 107 to slide on the sliding seat 105; the acting force of the spring causes the side pressing plate 108 to always press inwardly, and the two claw parts of the claw mechanism 4 overcome the resistance of the spring and drive the side pressing push block 106, the side pressing sliding shaft 107 and the side pressing plate 108 to slide, so that the distance between the two side pressing plates 108 increases.

[0037] As a preferred embodiment of the present invention, the claw mechanism 4 includes a fixing frame 404; two second lifting mechanisms 403 are fixed to the fixing frame 404; third transverse translation cylinders 402 are fixed to the second lifting mechanisms 403; a plug board 401 is fixed to the piston rod end of the third transverse translation cylinder 402; sliding seat card slots 105a are provided on the sliding seat 105; the width of the sliding seat card slot 105a is equal to the thickness of the plug board 401; the two plug boards 401 are respectively inserted into the two sliding seat card slots 105a; the second lifting mechanism 403 can drive the plug board 401 to perform a lifting motion for inserting and removing the plug board 401 from the sliding seat card slot 105a, and the third transverse translation cylinder 402 drives the plug board 401 to move horizontally, so that the sliding seat 105 slides.

[0038] As a preferred embodiment of the present invention, a lifting positioning pin mechanism is provided at the bottom of the sliding seat 105; the lifting positioning pin mechanism includes a locking pin guide sleeve 104, a locking pin 103 slidably connected to the locking pin guide sleeve 104, and a jig opening mechanism 2 for driving the locking pin 103 to move up and down; a pin hole 105b matching the locking pin 103 is provided at the bottom of the sliding seat 105; a locking pin support plate 102 is fixed to the bottom of the locking pin 103; the jig opening mechanism 2 includes a first bottom plate 201, a first transverse moving plate 203 capable of sliding horizontally on the first bottom plate 201, and a first transverse moving cylinder 202 for driving the first transverse moving plate 203 to slide on the first bottom plate 201; a first lifting mechanism 204 is fixed to the first transverse moving plate 203; a pulling plate 205 is fixed to the first lifting mechanism 204; the first lifting mechanism 204 has no essential difference from the prior art, so it will not be described in detail here; the locking pin guide sleeve 104 is fixed to the jig 1; under the drive of the first transverse moving cylinder 202 and the first lifting mechanism 204, the pulling plate 205 moves, and the moving pulling plate 205 drives the locking pin 103 to extend into or pull out of the pin hole 105b; when the locking pin 103 is inserted into the pin hole 105b, the sliding seat 105 is locked and fixed, so that the lower diaphragm folding plate A1 and the upper diaphragm folding plate A2 will not be opened during the process of entering the next working station.

[0039] As a preferred embodiment of the present invention, the lower film folding mechanism 3 includes a lower film folding cylinder 301, a lower fixing plate 302, a lower film folding lifting plate 304, and a lower guide sleeve 303 fixed to the lower fixing plate 302; two second transverse moving cylinders 306 are fixed to the lower film folding lifting plate 304; the piston rod ends of the second transverse moving cylinders 306 are both fixed with lower folding plates 307 capable of sliding on the lower film folding lifting plate 304; a lower film folding guide shaft 305 matching the lower guide sleeve 303 is fixed to the bottom of the lower film folding lifting plate 304; the lower film folding guide shaft 305 is inserted into the lower guide sleeve 303; one end of the lower film folding cylinder 301 is fixedly connected to the lower fixing plate 302; the other end of the lower film folding cylinder 301 is fixedly connected to the lower film folding lifting plate 304; the lower film folding cylinder 301 drives the entire lower film folding lifting plate 304 to move upward, so that the two lower folding plates 307 fold the lower diaphragm folding plates A1 on both sides respectively, and the second transverse moving cylinders 306 drive the lower folding plates 307 to translate, and the folded lower diaphragm folding plates A1 are shaped by the lower folding plates 307.

[0040] As a preferred embodiment of the present invention, the upper film folding mechanism 5 includes an upper film folding frame 502 and a third lifting mechanism 501 fixed on the upper film folding frame 502; a upper folding lifting plate 509 is arranged on the third lifting mechanism 501; two third transverse movement mechanisms 503 are fixed on the upper folding lifting plate 509; upper folding plates 504 are fixed on the third transverse movement mechanisms 503 respectively; after being driven by the third lifting mechanism 501, the whole upper folding lifting plate 509 is driven to move, and the downward moving upper folding plates 504 fold the upper film folding plates A2 on both sides downward, and the third transverse movement mechanism 503 drives the upper folding plates 504 to move horizontally to shape the folded upper film folding plates A2.

[0041] As a preferred embodiment of the present invention, an upper pressing block 505 is arranged between the two upper folding plates 504; a pressing block guide sleeve 507 is fixed on the upper film folding frame 502; a pressing block guide shaft 508 is slidably connected in the pressing block guide sleeve 507; the upper pressing block 505 is fixedly connected with the pressing block guide shaft 508; a lower pressing spring 506 is sleeved on the shaft body of the pressing block guide shaft 508; the two ends of the bottom end of the lower pressing spring 506 are respectively pressed against the upper film folding frame 502 and the upper pressing block 505; the pressing block guide shaft 508 is a head shaft with a head at the top, and its head serves to prevent the pressing block guide shaft 508 from falling off; when the upper folding plate 504 moves downward, the upper pressing block 505 first presses the insulating film A against the battery cell to prevent the insulating film A from shifting when the upper film folding plate A2 is folded, thereby improving the folding quality of the upper film folding plate A2.

[0042] When the present invention is in use, the battery cell and the insulating film are fixed by the fixture fixing plate body; the lower folding film cylinder drives the entire lower folding film lifting plate to move upward, so that the two lower folding plates respectively fold the lower film sheet folding plates on both sides, and the second transverse movement cylinder drives the lower folding plates to translate, and the folded lower film sheet folding plates are shaped by the lower folding plates. At the same time, after the third lifting mechanism is driven, it drives the entire upper folding lifting plate to move, and the downward moving upper folding plate folds the upper film sheet folding plates on both sides downward. The third transverse movement mechanism drives the upper folding plate to translate, and the folded upper film sheet folding plates are shaped. When the upper folding plate moves downward, the upper pressing block first presses the insulating film tightly on the battery cell to prevent the insulating film from shifting when the upper film sheet folding plate is folded. The acting force of the spring makes the side pressing plates always press tightly inward. The second lifting mechanism can drive the plug plate to move up and down for the plug plate to be inserted and removed from the sliding seat card slot. The second transverse movement cylinder drives the plug plate to move horizontally and overcomes the resistance of the spring, so that the sliding seat slides; and drives the side pressing push block, the side pressing sliding shaft and the side pressing plates to slide, so that the distance between the two side pressing plates increases. Driven by the first transverse movement cylinder and the first lifting mechanism, the pulling plate moves, and the moving pulling plate drives the locking pin to extend into or out of the pin hole; when the locking pin is inserted into the pin hole, the sliding seat is locked and fixed, so that the lower film sheet folding plate and the upper film sheet folding plate will not be opened during the process of entering the next working station; in this structure, the folding and pressing of the folding plates on the left and right sides of the battery cell packaging can be automatically performed, which is convenient for the subsequent hot melting process, greatly reduces the labor intensity, improves the production efficiency, and makes the quality of the insulating film more stable during the subsequent welding.

[0043] The above description is only a preferred embodiment of the present invention. Therefore, all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present invention patent application are included in the scope of the present invention patent application.

Claims

1. An automatic film wrapping mechanism for the left and right sides of an aluminum shell battery cell, characterized in that: It includes a jaw mechanism (4), a turntable (6), a lower film folding mechanism (3) for synchronously folding two lower diaphragm folding plates (A1) upward, an upper side film folding mechanism (5) for synchronously folding two upper diaphragm folding plates (A2) downward, and a fixture (1) fixed on the turntable (6); the jaw mechanism (4) is used to press the folded lower diaphragm folding plate (A1) and upper diaphragm folding plate (A2) onto the battery cell. Folding film pressing mechanisms are arranged on both the left and right sides of the fixture (1); the folding film pressing mechanism includes a sliding seat (105) and a side pressure guide rail (1010); the side pressure guide rail (1010) is fixed on the fixture (1), and a side pressure slider (109) matching the side pressure guide rail (1010) is fixed on the sliding seat (105); the side pressure slider (109) is embedded on the side pressure guide rail (1010); a side pressure sliding shaft (107) is slidably connected to the sliding seat (105); one end of the side pressure sliding shaft (107) is fixed with a side pressure push block (106); the other end of the side pressure sliding shaft (107) is fixed with a side pressure plate (108); a spring is sleeved on the shaft body of the side pressure sliding shaft (107); both ends of the spring are respectively pressed on the side pressure plate (108) and the sliding seat (105); the two claw parts of the jaw mechanism (4) are respectively used to drive the side pressure sliding shaft (107) to slide on the sliding seat (105). The jaw mechanism (4) includes a fixed frame (404); two second lifting mechanisms (403) are fixed on the fixed frame (404); third transverse translation cylinders (402) are fixed on the second lifting mechanisms (403); the piston rod ends of the third transverse translation cylinders (402) are fixed with insertion plates (401); sliding seat card slots (105a) are arranged on the sliding seats (105); the width of the sliding seat card slots (105a) is equal to the thickness of the insertion plates (401); the two insertion plates (401) are respectively inserted into the two sliding seat card slots (105a). The lower film folding mechanism (3) includes a lower film folding cylinder (301), a lower fixed plate (302), a lower film folding lifting plate (304), and a lower guide sleeve (303) fixed on the lower fixed plate (302); two second transverse translation cylinders (306) are fixed on the lower film folding lifting plate (304); the piston rod ends of the second transverse translation cylinders (306) are both fixed with lower folding plates (307) capable of sliding on the lower film folding lifting plate (304); a lower film folding guide shaft (305) matching the lower guide sleeve (303) is fixed at the bottom of the lower film folding lifting plate (304); the lower film folding guide shaft (305) is inserted into the lower guide sleeve (303); one end of the lower film folding cylinder (301) is fixedly connected to the lower fixed plate (302); the other end of the lower film folding cylinder (301) is fixedly connected to the lower film folding lifting plate (304). The upper film folding mechanism (5) includes an upper film folding frame (502) and a third lifting mechanism (501) fixed on the upper film folding frame (502); a upper folding lifting plate (509) is arranged on the third lifting mechanism (501); two third transverse movement mechanisms (503) are fixed on the upper folding lifting plate (509); upper folding plates (504) are fixed on the third transverse movement mechanisms (503).

2. An automatic film wrapping mechanism for the left and right sides of an aluminum shell battery cell according to claim 1, characterized in that: A lifting positioning pin mechanism is arranged at the bottom of the sliding seat (105); the lifting positioning pin mechanism includes a lock pin guide sleeve (104), a lock pin (103) slidably connected to the lock pin guide sleeve (104), and a clamp opening mechanism (2) for driving the lock pin (103) to move up and down; a pin hole (105b) matching the lock pin (103) is arranged at the bottom of the sliding seat (105); a lock pin support plate (102) is fixed at the bottom of the lock pin (103); the clamp opening mechanism (2) includes a first bottom plate (201), a first transverse movement plate (203) capable of sliding horizontally on the first bottom plate (201), and a first transverse movement cylinder (202) for driving the first transverse movement plate (203) to slide on the first bottom plate (201); a first lifting mechanism (204) is fixed on the first transverse movement plate (203); a pulling plate (205) is fixed on the first lifting mechanism (204).

3. An automatic film wrapping mechanism for the left and right sides of an aluminum shell battery cell according to claim 1, characterized in that: An upper pressure block (505) is arranged between the two upper folding plates (504); a pressure block guide sleeve (507) is fixed on the upper film folding frame (502); a pressure block guide shaft (508) is slidably connected in the pressure block guide sleeve (507); the upper pressure block (505) is fixedly connected to the pressure block guide shaft (508); a lower pressure spring (506) is sleeved on the shaft body of the pressure block guide shaft (508); the two ends of the bottom end of the lower pressure spring (506) are respectively pressed against the upper film folding frame (502) and the upper pressure block (505).

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