A lithium battery cell winding machine
The automated motor drive system and gear and worm gear mechanism enable automatic cutting and winding of electrode sheets in lithium battery cell winding machines, solving the problems of low production efficiency and inconsistent electrode sheets caused by manual cutting, and improving production efficiency and cutting accuracy.
Patent Information
- Application Number
- CN202520049943.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-09
AI Technical Summary
Existing lithium battery cell winding machines require manual cutting of electrode sheets, resulting in low production efficiency and problems such as inconsistent electrode sheet sizes and uneven edges.
An automated motor drive system is used to automatically cut and wind the electrode sheets through gears, rotating rods, and worm gear mechanisms. Combined with the sliding of sliders and slide rails, precise electrode sheet cutting and repositioning are achieved.
It significantly improves the winding speed and production efficiency of lithium battery cells, shortens the production cycle, reduces manual operation time, and ensures the accuracy and consistency of electrode cutting.
Smart Images

Figure CN223797377U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium battery cell winding technology, and in particular to a lithium battery cell winding machine. Background Technology
[0002] A lithium-ion battery cell winding machine is a key piece of equipment used in the production of lithium-ion batteries. It is primarily used to assemble the positive electrode, negative electrode, and separator of a lithium-ion battery into a cell structure through continuous rotation. Through precise control and advanced technology, the lithium-ion battery cell winding machine can achieve high-quality winding of the cells, thereby ensuring product quality and yield.
[0003] In the past, the electrode sheets may have needed to be cut manually, which would greatly increase production time and reduce overall production efficiency. Manual cutting is also difficult to maintain a stable cutting speed, which may lead to problems such as inconsistent electrode sheet size and uneven edges. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a lithium battery cell winding machine, which aims to improve the problem of requiring manual cutting of electrode sheets, increasing production time, and reducing overall production efficiency.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a lithium battery cell winding machine, comprising a support plate, a first motor fixedly connected inside the support plate, a gear fixedly disposed at the output end of the first motor, a first rotating rod fixedly connected to the outer wall of the gear, a limiting piece slidably connected to the outer wall of the first rotating rod, a limiting rod rotatably connected inside the limiting piece, the outer wall of the limiting rod fixedly connected to the inside of the support plate, a sliding rod slidably connected inside the limiting piece, a slider fixedly connected to the outer wall of the sliding rod, a slide rail slidably connected to the outer wall of the slider, the outer wall of the slide rail fixedly connected to the outer wall of the support plate, and a support assembly disposed on the lower surface of the support plate for auxiliary support.
[0006] Preferably, the support assembly includes a base, the upper surface of which is fixedly connected to the lower surface of the support plate, a first support block is fixedly connected to the upper surface of the base, and a fixing column is fixedly connected to the outer wall of the first support block.
[0007] Preferably, a fixing block is fixedly connected to the upper surface of the base, a second motor is fixedly connected inside the fixing block, and a worm gear is fixedly installed at the output end of the second motor.
[0008] Preferably, a fixed cylinder is rotatably connected to the outer wall of the worm gear, and a second support block is fixedly connected to the outer wall of the fixed cylinder.
[0009] Preferably, the lower surface of the second support block is fixedly connected to the upper surface of the base, and the tooth end of the worm is engaged with a worm wheel.
[0010] Preferably, the worm gear is rotatably connected to a support column, and a third support block is fixedly connected to the outer wall of the support column.
[0011] Preferably, the lower surface of the third support block is fixedly connected to the upper surface of the base.
[0012] Preferably, a third motor is fixedly connected inside the worm gear, and a second rotating rod is fixedly installed at the output end of the third motor.
[0013] This utility model has the following beneficial effects:
[0014] 1. In this utility model, the first motor drives the gear and the first rotating rod, which in turn drive the limiting plate and the sliding rod. The sliding rod drives the slider, and the blade on the outer wall of the slider cuts the electrode sheet, thus achieving the goal of quickly and accurately completing the cutting task of the electrode sheet and significantly improving the overall production efficiency of the winding machine.
[0015] 2. In this utility model, the second motor drives the worm and worm wheel to move the third motor, the third motor drives the second rotating rod to change the position of the electrode, and the third motor drives the second rotating rod to automatically wind the electrode, thus achieving automated control. This can significantly improve the winding speed of the lithium battery cell and shorten the production cycle. Attached Figure Description
[0016] Figure 1 This is a perspective view of a lithium battery cell winding machine proposed in this utility model;
[0017] Figure 2 This is a partial structural diagram of a limiting piece for a lithium battery cell winding machine proposed in this utility model;
[0018] Figure 3 This is a schematic diagram of a partial structure of the worm gear of a lithium battery cell winding machine proposed in this utility model.
[0019] Legend:
[0020] 1. Support plate; 2. First motor; 3. Gear; 4. First rotating rod; 5. Limiting plate; 6. Limiting rod; 7. Sliding rod; 8. Slider; 9. Slide rail; 10. Base; 11. First support block; 12. Fixed column; 13. Fixed block; 14. Second motor; 15. Worm gear; 16. Fixed cylinder; 17. Second support block; 18. Worm wheel; 19. Support column; 20. Third support block; 21. Third motor; 22. Second rotating rod. Detailed Implementation
[0021] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0022] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a lithium battery cell winding machine, comprising a support plate 1, a first motor 2 fixedly connected inside the support plate 1, a gear 3 fixedly disposed at the output end of the first motor 2, a first rotating rod 4 fixedly connected to the outer wall of the gear 3, a limiting piece 5 slidably connected to the outer wall of the first rotating rod 4, a limiting rod 6 rotatably connected inside the limiting piece 5, the outer wall of the limiting rod 6 fixedly connected to the inside of the support plate 1, a sliding rod 7 slidably connected inside the limiting piece 5, a slider 8 fixedly connected to the outer wall of the sliding rod 7, a slide rail 9 slidably connected to the outer wall of the slider 8, the outer wall of the slide rail 9 fixedly connected to the outer wall of the support plate 1, and a support assembly disposed on the lower surface of the support plate 1 for auxiliary support.
[0023] Specifically, the support plate 1 provides fixed support for the first motor 2, which in turn drives the gear 3 to rotate the first rotating rod 4. The first rotating rod 4 then drives the limiting piece 5 to rotate on the outer wall of the limiting rod 6. The limiting piece 5 has a groove inside, which is then limited by the first rotating rod 4. The support plate 1 provides fixed support for the limiting rod 6. The limiting piece 5 then drives the sliding rod 7 to move, which is also limited by the limiting piece 5. The sliding rod 7 then drives the slider 8 to slide inside the slide rail 9, which is then fixed by the support plate 1. The outer wall of the slider 8 has a blade that cuts the electrode sheet.
[0024] Reference Figure 1 The support assembly includes a base 10, the upper surface of which is fixedly connected to the lower surface of the support plate 1, a first support block 11 fixedly connected to the upper surface of the base 10, and a fixing column 12 fixedly connected to the outer wall of the first support block 11.
[0025] Specifically, the base 10 provides fixed support for the support plate 1, the base 10 provides fixed support for the first support block 11, and the fixing column 12 limits the position of the electrode.
[0026] Reference Figure 1 and Figure 3A fixing block 13 is fixedly connected to the upper surface of the base 10. A second motor 14 is fixedly connected inside the fixing block 13. A worm gear 15 is fixedly installed at the output end of the second motor 14. A fixing cylinder 16 is rotatably connected to the outer wall of the worm gear 15. A second support block 17 is fixedly connected to the outer wall of the fixing cylinder 16. The lower surface of the second support block 17 is fixedly connected to the upper surface of the base 10. A worm wheel 18 is meshed with the tooth end of the worm gear 15. A support column 19 is rotatably connected inside the worm wheel 18. A third support block 20 is fixedly connected to the outer wall of the support column 19. The lower surface of the third support block 20 is fixedly connected to the upper surface of the base 10. A third motor 21 is fixedly connected inside the worm wheel 18. A second rotating rod 22 is fixedly installed at the output end of the third motor 21.
[0027] Specifically, the worm gear 18 provides fixed support for the third motor 21, which in turn drives the second rotating rod 22 to rotate, thereby causing the electrode to automatically wind. The fixing block 13 provides fixed support for the second motor 14, and the base 10 provides fixed support for the fixing block 13. The second motor 14 drives the worm gear 15 to rotate on the inner wall of the fixed cylinder 16, which is then fixedly supported by the second support block 17. The worm gear 15 then drives the worm gear 18 to rotate on the outer wall of the support column 19, which is fixedly supported by the third support block 20. The worm gear 18 then drives the third motor 21 to move, which in turn drives the second rotating rod 22 to rotate the electrode.
[0028] Working principle: When the winding machine is needed, the electrode sheet is introduced from the fixed column 12 to the outer wall of the second rotating rod 22. The third motor 21 inside the worm gear 18 is started. The third motor 21 drives the second rotating rod 22, thereby automatically winding the electrode sheet. This then starts the second motor 14 inside the fixed block 13. The second motor 14 drives the worm 15 to rotate on the inner wall of the fixed cylinder 16. The worm 15 drives the worm gear 18 to rotate on the outer wall of the support column 19. The worm gear 18 then drives the third motor 21 to move. The third motor 21 then drives the second rotating rod 22, thereby changing the position of the electrode sheet. At the same time, the first motor 2 inside the support plate 1 is started. The first motor 2 drives the gear 3, which in turn drives the first rotating rod 4 to rotate. As the first rotating rod 4 rotates, it drives the limiting plate 5 to rotate on the outer wall of the limiting rod 6. The limiting plate 5 then drives the sliding rod 7 to move. As the sliding rod 7 moves, it drives the slider 8 to slide inside the slide rail 9. The outer wall of the slider 8 is equipped with blades to cut the electrode sheet. This winding machine can not only quickly and accurately complete the electrode sheet cutting task, but also significantly improve the overall production efficiency of the winding machine, reduce the time of manual operation, and speed up the production rhythm. Furthermore, through automated control, it can significantly increase the winding speed of lithium battery cells, thereby shortening the production cycle and improving the overall production efficiency.
[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A lithium battery cell winding machine, comprising a support plate (1), characterized in that: The support plate (1) is fixedly connected to a first motor (2), and a gear (3) is fixedly provided at the output end of the first motor (2). A first rotating rod (4) is fixedly connected to the outer wall of the gear (3). A limiting piece (5) is slidably connected to the outer wall of the first rotating rod (4). A limiting rod (6) is rotatably connected inside the limiting piece (5). The outer wall of the limiting rod (6) is fixedly connected to the inside of the support plate (1). A sliding rod (7) is slidably connected inside the limiting piece (5). A slider (8) is fixedly connected to the outer wall of the sliding rod (7). A slide rail (9) is slidably connected to the outer wall of the slider (8). The outer wall of the slide rail (9) is fixedly connected to the outer wall of the support plate (1). A support assembly is provided on the lower surface of the support plate (1). The support assembly is used for auxiliary support.
2. A lithium battery cell winding machine according to claim 1, characterized in that: The support assembly includes a base (10), the upper surface of which is fixedly connected to the lower surface of the support plate (1), and a first support block (11) is fixedly connected to the upper surface of the base (10), and a fixing column (12) is fixedly connected to the outer wall of the first support block (11).
3. A lithium battery cell winding machine according to claim 2, characterized in that: A fixing block (13) is fixedly connected to the upper surface of the base (10), and a second motor (14) is fixedly connected inside the fixing block (13). A worm gear (15) is fixedly installed at the output end of the second motor (14).
4. A lithium battery cell winding machine according to claim 3, characterized in that: The outer wall of the worm (15) is rotatably connected to a fixed cylinder (16), and the outer wall of the fixed cylinder (16) is fixedly connected to a second support block (17).
5. A lithium battery cell winding machine according to claim 4, characterized in that: The lower surface of the second support block (17) is fixedly connected to the upper surface of the base (10), and the tooth end of the worm (15) is engaged with a worm wheel (18).
6. A lithium battery cell winding machine according to claim 5, characterized in that: The worm gear (18) is internally connected to a support column (19), and the outer wall of the support column (19) is fixedly connected to a third support block (20).
7. A lithium battery cell winding machine according to claim 6, characterized in that: The lower surface of the third support block (20) is fixedly connected to the upper surface of the base (10).
8. A lithium battery cell winding machine according to claim 6, characterized in that: The worm gear (18) is internally connected to a third motor (21), and the output end of the third motor (21) is fixedly provided with a second rotating rod (22).