A device for cutting, rolling, and flattening all-tab batteries

Abstract

This utility model relates to the field of battery manufacturing technology, specifically a device for cutting, rolling, and flattening a full-tab battery. It includes a worktable on which a conveying mechanism, an electrode cutting mechanism, a pre-bending mechanism, a winding mechanism, and a flattening unit are sequentially arranged. The electrode cutting mechanism includes a U-shaped frame, a laser generator, an electric push rod, and a laser cutting head. The laser generator is mounted on the U-shaped frame, and the electric push rod is fixedly connected to the laser generator. This utility model, by employing laser cutting and orderly stacked electrode tabs, avoids damage to the film and the generation of metal shavings during the flattening process, improving the safety and stability of the battery. The flattening process, combining pre-bending, multiple flattening, and torque and distance modes, effectively improves the flatness of the electrode tabs, which is beneficial for current conduction within the battery, thereby improving battery performance and quality.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, and in particular to a device for cutting, rolling, and flattening all-tab batteries. Background Technology

[0002] In the manufacturing process of lithium-ion batteries, the production process of full-tab lithium-ion batteries has a crucial impact on battery performance and quality. Traditional full-tab lithium-ion battery manufacturing processes have several problems. For example, during the tab processing, the flattening process can easily damage the diaphragm and generate metal shavings, which may affect the battery's safety and stability. Furthermore, existing flattening processes are limited in their effectiveness in achieving a flat tab surface, failing to meet the requirements of high-quality lithium-ion battery production. Therefore, a new full-tab lithium-ion battery cutting, rolling, and flattening process is needed to solve these problems. Utility Model Content

[0003] The purpose of this utility model is to solve the problems mentioned in the background art and to propose a device for cutting, rolling and flattening all tab batteries.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a full-tab battery cutting, rolling, and flattening device, including a worktable, on which a conveying mechanism, an electrode cutting mechanism, a pre-bending mechanism, a winding mechanism, and a flattening unit are sequentially arranged. The electrode cutting mechanism includes a U-shaped frame, a laser generator, an electric push rod, and a laser cutting head. The laser generator is mounted on the U-shaped frame, and the electric push rod is fixedly connected to the laser generator. The pre-bending mechanism includes two fixed plates, a bending roller, and a motor. The bending roller is rotatably connected between the two fixed plates, and the output end of the motor is fixedly connected to one end of the bending roller.

[0005] Preferably, the winding mechanism includes a support plate one, a support plate two, a winding shaft and a motor three. The winding shaft is mounted between the support plate one and the support plate two and is connected to the output end of the motor three. A winding core is sleeved on the winding shaft.

[0006] Preferably, the flat racket unit includes a second U-shaped frame, a first bidirectional lead screw, a first drive block, a flat racket plate, a second motor, and a placement seat. The first bidirectional lead screw is rotatably connected to the inner side of the second U-shaped frame and fixedly connected to the output end of the second motor. The first drive block is threadedly connected to the first bidirectional lead screw, and the bottom end of the first drive block is fixedly connected to the flat racket plate. The placement seat is located below the flat racket plate, and a displacement sensor is fixedly connected to the inner side of the second U-shaped frame.

[0007] Preferably, the end of the take-up shaft facing the motor three has a slot, and the output end of the motor three is inserted into the slot.

[0008] Preferably, a U-shaped frame three is provided between the winding mechanism and the flat beater unit. A bidirectional lead screw two is rotatably connected to the inner side of the U-shaped frame three. Two symmetrically distributed drive blocks two are threaded onto the bidirectional lead screw two. A limiting plate is fixedly connected to one side of the drive block two. The limiting plate is located at both ends of the core. A rotating wheel is fixedly connected to one end of the bidirectional lead screw two. A sliding groove is opened at the top of the U-shaped frame three. A guide rod is fixedly connected to the top of the drive block two. The guide rod is inserted into the sliding groove.

[0009] Preferably, a handle sleeve is fixedly connected to the surface of the rotating wheel, and the handle sleeve is made of elastic rubber.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0011] 1. In this utility model, by using laser cutting and orderly stacked tabs, damage to the diaphragm and the generation of metal shavings caused by the flattening process are avoided, thereby improving the safety and stability of the battery. The flattening process, which combines pre-bending, multiple flattening and torque and fixed-distance modes, can effectively improve the flatness of the tabs, which is beneficial to the current conduction inside the battery, thereby improving the performance and quality of the battery.

[0012] 2. In this utility model, by rotating the rotating wheel, the bidirectional lead screw can be rotated, which can drive the drive block to move, thereby limiting the two ends of the core. This can not only ensure the stability of the core's position during the winding process and prevent deviation, but also assist the winding work to be carried out better, improving the neatness and overall quality of the winding. Attached Figure Description

[0013] Figure 1 This utility model provides a schematic diagram of a device for cutting, rolling, and flattening a full-tab battery;

[0014] Figure 2 The left view of the device for cutting, rolling, and flattening a full-tab battery is provided for this utility model;

[0015] Figure 3 An exploded view of a multi-tab battery cutting, rolling, and flattening device is provided for this utility model;

[0016] Figure 4 This utility model proposes a device for cutting, rolling, and flattening all-tab batteries. Figure 3 Enlarged view of point A in the middle.

[0017] Legend:

[0018] 1. Workbench; 2. Conveying mechanism; 3. Electrode cutting mechanism; 301. U-shaped frame one; 302. Laser generator; 303. Electric push rod; 304. Laser cutting head; 4. Pre-bending mechanism; 401. Fixing plate; 402. Bending roller; 403. Motor one; 5. Flat plate unit; 501. U-shaped frame two; 502. Bidirectional lead screw one; 503. Drive block one; 504. Flat plate; 505. Motor two; 506. Placement seat; 507. Displacement sensor; 6. U-shaped frame three; 7. Slide groove; 8. Rewinding mechanism; 801. Support plate one; 802. Support plate two; 803. Rewinding shaft; 804. Core; 805. Motor three; 9. Bidirectional lead screw two; 10. Drive block two; 11. Limiting plate; 12. Rotary wheel; 13. Handle sleeve; 14. Guide rod; 15. Slot. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1: As Figure 1 - Figure 4As shown, this utility model provides a technical solution: a full-tab battery cutting, rolling, and flattening device, including a worktable 1. The worktable 1 is sequentially equipped with a conveying mechanism 2, an electrode cutting mechanism 3, a pre-bending mechanism 4, a winding mechanism 8, and a flattening unit 5. The electrode cutting mechanism 3 includes a U-shaped frame 301, a laser generator 302, an electric push rod 303, and a laser cutting head 304. The laser generator 302 is mounted on the U-shaped frame 301, and the electric push rod 303 is fixedly connected to the laser generator 302. The pre-bending mechanism 4 includes two fixed plates 401, a bending roller 402, and a motor 403. The bending roller 402 is rotatably connected between the two fixed plates 401. The output end of the motor 403 is fixedly connected to one end of the bending roller 402. The winding mechanism 8 includes a support plate 801, a support plate 802, a winding shaft 803, and a motor 805. The take-up shaft 803 is mounted between the support plate 1 801 and the support plate 2 802 and is connected to the output end of the motor 3 805. The take-up shaft 803 is fitted with a core 804. The flat beater unit 5 includes a U-shaped frame 2 501, a bidirectional lead screw 1 502, a drive block 1 503, a flat beater plate 504, a motor 2 505, and a placement seat 506. The bidirectional lead screw 1 502 is rotatably connected to the inside of the U-shaped frame 2 501 and is fixedly connected to the output end of the motor 2 505. The drive block 1 503 is threadedly connected to the bidirectional lead screw 1 502 and the bottom end of the drive block 1 503 is fixedly connected to the flat beater plate 504. The placement seat 506 is located below the flat beater plate 504. A displacement sensor 507 is fixedly connected to the inside of the U-shaped frame 2 501. The take-up shaft 803 has a slot 15 at the end facing the motor 3 805, and the output end of the motor 3 805 is inserted into the slot 15.

[0022] In this embodiment, by employing laser cutting and orderly stacked tabs, damage to the diaphragm and the generation of metal shavings caused by the flattening process are avoided, thus improving the safety and stability of the battery. The flattening process, which combines pre-bending, multiple flattening, and torque and spacing modes, effectively improves the flatness of the tabs, which is beneficial for current conduction inside the battery, thereby improving the battery's performance and quality. The winding shaft 803 is driven to rotate by motor 3 805, facilitating the winding of the cut and bent electrode sheets onto the core 804 for winding. The two drive blocks 503 are moved by the bidirectional lead screw 502 driven by motor 2 505. This allows the flat plate 504 to flatten the tabs, while the displacement sensor 507 accurately measures the moving distance of the flat plate, assisting in achieving fixed-distance control. The second motor 505, as a power source, can accurately output different amounts of torque under the control of the system, driving the flat plate to perform corresponding actions, thus achieving a flattening mode that combines torque and fixed distance. The output end of the third motor 805 can be inserted into the slot 15 at one end of the take-up shaft 803, making it convenient to remove the take-up shaft 803 from between the first support plate 801 and the second support plate 802, thereby improving the convenience of removing the wound core 804 from the take-up shaft 803.

[0023] Example 2: As Figure 1 - Figure 3 As shown, a U-shaped frame 3 6 is provided between the winding mechanism 8 and the flat beater unit 5. A two-way lead screw 2 9 is rotatably connected to the inner side of the U-shaped frame 3 6. Two symmetrically distributed drive blocks 2 10 are threaded onto the two-way lead screw 2 9. A limit plate 11 is fixedly connected to one side of the drive block 2 10. The limit plate 11 is located at both ends of the core 804. A rotating wheel 12 is fixedly connected to one end of the two-way lead screw 2 9. A sliding groove 7 is opened on the top of the U-shaped frame 3 6. A guide rod 14 is fixedly connected to the top of the drive block 2 10. The guide rod 14 is inserted into the sliding groove 7. A handle sleeve 13 is fixedly connected to the surface of the rotating wheel 12. The handle sleeve 13 is made of elastic rubber.

[0024] In this embodiment, rotating the rotating wheel 12 causes the bidirectional lead screw 9 to rotate, which in turn drives the drive block 10 to move. This causes the limiting plate 11 to limit the two ends of the core 804, ensuring the stability of the core 804 during the winding process and preventing deviations. It also assists in better winding operations, improving the neatness and overall quality of the winding. The elastic rubber handle sleeve 13, which is fixedly connected to the surface of the rotating wheel 12, makes it convenient for the operator to rotate the rotating wheel 12, improving the comfort and convenience of operation. At the same time, the elastic rubber material also provides a certain degree of anti-slip, ensuring more precise control of the rotation of the bidirectional lead screw 9 when operating it, and ensuring the accurate implementation of limiting and other related operations.

[0025] The working principle of this embodiment is as follows: In use, the electrode to be processed is first placed on the conveyor belt of the conveyor mechanism 2. The conveyor mechanism 2 is responsible for smoothly transporting the electrode forward. Then, the electrode reaches below the electrode cutting mechanism 3. The laser generator 302, located on the U-shaped frame 301, adjusts its position in real time under the action of the electric push rod 303. The laser cutting head 304 precisely cuts the electrode, dividing it according to predetermined specifications and requirements. Simultaneously, the electrode tabs are cut out by the laser. By controlling the laser parameters, narrow and wide electrode tabs are separated. After the electrode tabs are removed, the electrode is transported by the conveyor mechanism... The material is conveyed into the pre-bending mechanism 4 by the conveyor belt. Motor 403 drives the bending roller 402 to rotate between two fixed plates 401. The bending roller 402 pre-bends the electrode sheet, giving it the initial shape required for subsequent processing. After pre-bending, the material is conveyed to the winding mechanism 8. Motor 805 drives the winding shaft 803 to rotate. The core 804 mounted on the winding shaft 803 begins to wind the electrode sheet. During winding, the bidirectional lead screw 9 within the U-shaped frame 6 between the winding mechanism 8 and the flat plate unit 5 functions. By rotating the rotating wheel 12, the bidirectional lead screw 9 drives... The second drive block 10 drives the limiting plate 11 to limit both ends of the core 804, ensuring accurate and neat winding position. After winding, the winding shaft 803 is removed from between the first support plate 801 and the second support plate 802, so that the output end of the second motor 505 disengages from the slot 15 at one end of the winding shaft 803. Then, the core 804 with the electrode sheet wound up is removed from the winding shaft and placed in the placement seat 506 on the first flat plate unit 5. The second motor 505 drives the bidirectional lead screw 502 to rotate, driving the drive block 503 threadedly connected to it to move. The bottom end of the drive block 503 is fixed. The flat plate 504 then flattens the tabs and other parts, while the displacement sensor 507 precisely measures the movement distance of the flat plate to assist in achieving fixed-distance control. The motor 505, as the power source, under the control system, can precisely output different amounts of torque to drive the flat plate to perform corresponding actions, achieving a flattening mode combining torque and fixed-distance control. After the first flattening, the battery enters the second flattening unit, where the torque and fixed-distance values ​​are adjusted. These two parameters are fine-tuned based on the tab condition after the first flattening to further improve the flatness of the tabs. After the first two flattening operations, the battery enters the third flattening unit, where the torque and fixed-distance values ​​are adjusted again. Through this flattening process, the tabs achieve the final flatness requirements, meeting the high-quality standards of battery production.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A full tab battery cutting, flattening device, comprising a workbench (1), characterized in that: The workbench (1) is sequentially provided with a conveying mechanism (2), an electrode cutting mechanism (3), a pre-bending mechanism (4), a winding mechanism (8), and a flat-firing unit (5). The electrode cutting mechanism (3) includes a U-shaped frame (301), a laser generator (302), an electric push rod (303), and a laser cutting head (304). The laser generator (302) is mounted on the U-shaped frame (301), and the electric push rod (303) is fixedly connected to the laser generator (302). The pre-bending mechanism (4) includes two fixed plates (401), a bending roller (402), and a motor (403). The bending roller (402) is rotatably connected between the two fixed plates (401), and the output end of the motor (403) is fixedly connected to one end of the bending roller (402).

2. The full tab cell slitting, flattening device of claim 1, wherein: The winding mechanism (8) includes a support plate one (801), a support plate two (802), a winding shaft (803) and a motor three (805). The winding shaft (803) is mounted between the support plate one (801) and the support plate two (802) and is connected to the output end of the motor three (805). A core (804) is sleeved on the winding shaft (803).

3. The full tab battery slitting, flattening device of claim 1, wherein: The flat-striking unit (5) includes a second U-shaped frame (501), a first bidirectional lead screw (502), a first drive block (503), a flat-striking plate (504), a second motor (505), and a placement seat (506). The first bidirectional lead screw (502) is rotatably connected to the inner side of the second U-shaped frame (501) and fixedly connected to the output end of the second motor (505). The first drive block (503) is threadedly connected to the first bidirectional lead screw (502), and the bottom end of the first drive block (503) is fixedly connected to the flat-striking plate (504). The placement seat (506) is located below the flat-striking plate (504). A displacement sensor (507) is fixedly connected to the inner side of the second U-shaped frame (501).

4. The full tab cell slitting, flattening apparatus of claim 2, wherein: The winding shaft (803) has a slot (15) at one end facing the motor (805), and the output end of the motor (805) is inserted into the slot (15).

5. The device for cutting, rolling, and flattening a full-tab battery according to claim 1, characterized in that: A U-shaped frame three (6) is provided between the winding mechanism (8) and the flat beater unit (5). A two-way lead screw two (9) is rotatably connected to the inner side of the U-shaped frame three (6). Two symmetrically distributed drive blocks two (10) are threaded on the two-way lead screw two (9). A limiting plate (11) is fixedly connected to one side of the drive block two (10). The limiting plate (11) is located at both ends of the core (804). A rotating wheel (12) is fixedly connected to one end of the two-way lead screw two (9). A sliding groove (7) is opened on the top of the U-shaped frame three (6). A guide rod (14) is fixedly connected to the top of the drive block two (10). The guide rod (14) is inserted into the sliding groove (7).

6. The full tab cell slitting, flattening apparatus of claim 5, wherein: A handle sleeve (13) is fixedly connected to the surface of the wheel (12), and the handle sleeve (13) is made of elastic rubber.

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