A quick-change device for the take-up roller of a lithium battery cell winding machine

Abstract

This utility model discloses a quick-change device for the take-up roller of a lithium battery cell winding machine, belonging to the field of cell winding technology. It includes a rotating disk with a fixed column mounted on its side wall. The fixed column is rotatably connected to the winding machine. A drive assembly is provided on the side wall of the rotating disk for replacing the main body of the take-up roller. An auxiliary assembly is provided on one side of the rotating disk to assist in replacing the main body of the take-up roller. The drive assembly includes a first gear, a first motor, and two sets of second motors. The first gear is sleeved and installed outside the fixed column, and the first motor is installed on one side of the fixed column. The output end of the first motor is equipped with a second gear. This utility model enables quick cutting, unloading, and replacement of the main body of the take-up roller for battery cells, ensuring continuous winding operations, improving cell production efficiency, reducing labor costs, and alleviating the labor intensity of workers.

Description

Technical Field

[0001] This utility model relates to the technical field of battery cell winding, specifically a quick replacement device for the take-up roller of a lithium battery cell winding machine. Background Technology

[0002] With the rapid development of new energy vehicles, consumer electronics, and energy storage industries, the market demand for lithium batteries has exploded, while simultaneously placing higher demands on the production efficiency, consistency, and safety of lithium batteries. As the core component of lithium batteries, the quality of the battery cell's manufacturing process directly determines the overall performance of the battery. Winding is a crucial process in cell production; the winding machine precisely winds the positive electrode sheet, separator, and negative electrode sheet into the cell, and its stability and efficiency are paramount. Therefore, a quick-change device for the take-up rollers of a lithium battery cell winding machine is needed.

[0003] The existing technology has the following shortcomings: When winding lithium battery cells, the equipment must be completely stopped after each cell is wound. Subsequently, operators need to manually perform a series of operations, resulting in extremely low production efficiency. Frequent shutdowns and manual operations severely disrupt the rhythm of continuous production, and the overall utilization rate of the equipment is low, becoming a major obstacle to improving the overall production capacity. At the same time, each winding station requires operators to perform repeated feeding, preparation, and loading operations, which not only increases labor intensity but also increases labor costs. Furthermore, manual re-threading of the guide tape and placement of the initial tooling are prone to introducing operational errors, resulting in inconsistencies in key parameters such as initial tension and alignment of each cell winding, thus creating potential quality hazards. Utility Model Content

[0004] The purpose of this invention is to provide a quick replacement device for the take-up roller of a lithium battery cell winding machine, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick replacement device for the take-up roller of a lithium battery cell winding machine, comprising a rotating disk, a fixing column installed on the side wall of the rotating disk, the fixing column being rotatably connected to the winding machine, a driving component provided on the side wall of the rotating disk for replacing the main body of the take-up roller, and an auxiliary component provided on one side of the rotating disk for assisting in completing the replacement of the main body of the take-up roller.

[0006] As a further preferred embodiment of this technical solution, the drive assembly includes a first gear, a first motor, and two sets of second motors. The first gear is sleeved and installed outside the fixed column, the first motor is installed on one side of the fixed column, the output end of the first motor is equipped with a second gear, the two sets of second motors are symmetrically installed on the side wall of the rotating disk by bolts, the output end of the second motor is equipped with a transmission rod, and the main body of the take-up roller is sleeved and installed outside the transmission rod.

[0007] As a further preferred embodiment of this technical solution, the first gear meshes with the second gear for transmission, the first motor is connected to the winding machine, and through holes are provided on the surface of both the transmission rod and the main body of the take-up roller. A negative pressure pump is installed on the side wall of the transmission rod.

[0008] As a further preferred embodiment of this technical solution, the auxiliary component includes a fixing frame, which is bolted to the side wall of the first motor. A micro motor is bolted to the top of the fixing frame, and a first lead screw is installed at the output end of the micro motor. A first lead screw nut is sleeved on the outside of the first lead screw, and a mounting frame is installed on the side wall of the first lead screw nut. An auxiliary roller is rotatably installed at the bottom of the mounting frame.

[0009] As a further preferred embodiment of this technical solution, the cross-section of the fixing frame is U-shaped, the first lead screw nut is slidably disposed with the inner wall of the fixing frame, and the auxiliary roller is located above the main body of the take-up roller.

[0010] As a further preferred embodiment of this technical solution, the auxiliary component further includes two sets of stabilizing frames, which are symmetrically arranged on one side of the rotating disk. A second lead screw is rotatably mounted on the inner wall of each stabilizing frame. A synchronous transmission wheel is sleeved on the outside of the second lead screw, and a synchronous transmission belt is sleeved on the outside of the synchronous transmission wheel. A second lead screw nut is sleeved on the outside of the second lead screw, and a cutting blade and a pusher plate are provided on the side wall of the second lead screw nut.

[0011] As a further preferred embodiment of this technical solution, the cross-section of the stabilizing frame is L-shaped, the second lead screw is driven and controlled by a drive motor, and the second lead screw nut is slidably disposed with respect to the inner wall of the stabilizing frame.

[0012] This utility model provides a quick replacement device for the winding roller of a lithium battery cell winding machine, which has the following advantages: This invention, by incorporating a drive assembly and auxiliary components, enables the cutting, unloading, and rapid replacement of the take-up roller body for battery cells, ensuring continuous winding operations, improving battery cell production efficiency, and reducing labor costs. It also reduces the workload of workers and allows for the adsorption of the cut battery cell ends, causing the cells to adhere to the surface of the take-up roller body, facilitating subsequent winding. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the drive component structure of this utility model; Figure 3 This is a schematic diagram of the auxiliary component structure of this utility model; Figure 4 This is a schematic diagram of the auxiliary component structure of this utility model.

[0014] In the diagram: 1. Rotating disk; 2. Fixed column; 3. First gear; 4. First motor; 5. Second gear; 6. Second motor; 7. Transmission rod; 8. Take-up roller body; 9. Through hole; 10. Negative pressure pump; 11. Fixing frame; 12. Micro motor; 13. First lead screw; 14. No. 1 lead screw nut; 15. Mounting frame; 16. Auxiliary roller; 17. Stabilizing frame; 18. Second lead screw; 19. Synchronous transmission wheel; 20. Synchronous transmission belt; 21. No. 2 lead screw nut; 22. Cutting blade; 23. Push plate. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] This utility model provides a technical solution: such as Figure 1 and Figure 3As shown in this embodiment, a quick-change device for the take-up roller of a lithium battery cell winding machine includes a rotating disk. A fixed column 2 is installed on the side wall of the rotating disk 1 for mounting the rotating disk 1. The fixed column 2 is rotatably connected to the winding machine. A drive assembly is provided on the side wall of the rotating disk 1 for replacing the take-up roller body 8. An auxiliary assembly is provided on one side of the rotating disk 1 to assist in replacing the take-up roller body 8. The drive assembly includes a first gear 3, a first motor 4, and two sets of second motors 6. The first gear 3 is sleeved and installed outside the fixed column 2 for transmitting the rotation of the first gear 3. The first motor 4 is installed on one side of the fixed column 2 for driving the second gear 5 to rotate. The output end of the first motor 4 is equipped with the second gear 5. The two sets of second motors 6 are symmetrically installed on the side wall of the rotating disk 1 by bolts. A transmission rod 7 is installed at the output end of the second motor 6 for limiting the position of the take-up roller body 8. The take-up roller body 8 is sleeved and installed outside the transmission rod 7 for winding the lithium battery cell. The first gear 3 meshes with the second gear 5 for transmission. The first motor 4 is connected to the winding machine. Both the transmission rod 7 and the take-up roller body 8 have through holes 9 on their surfaces. A negative pressure pump 10 is installed on the side wall of the transmission rod 7 for adsorbing and fixing the ends of the lithium battery cells. The second motor 6 drives the transmission rod 7 to rotate, which in turn drives the take-up roller body 8 to rotate, thus winding the lithium battery cells. After winding a set of cells, the corresponding second motor 6 stops operating, and the first motor 4 starts. The first motor 4 drives... The second gear 5 rotates, which in turn drives the first gear 3 to rotate. The first gear 3 then drives the fixed column 2 to rotate, which in turn drives the rotating disk 1 to rotate. The rotation of the rotating disk 1 causes the battery cell that has been wound at the top to rotate to the bottom, and the new take-up roller body 8 at the bottom to rotate to the top, thus completing the quick replacement of the take-up roller body 8. After the battery cell is cut, the negative pressure pump 10 creates a negative pressure at the through hole 9, which can attract the battery cell and make it adhere to the surface of the take-up roller body 8, which is beneficial for the subsequent winding of the battery cell.

[0017] like Figure 1 and Figure 3As shown, the auxiliary component includes a fixing frame 11, which is bolted to the side wall of the first motor 4. A micro motor 12 is bolted to the top of the fixing frame 11 to drive the first lead screw 13 to rotate. The output end of the micro motor 12 is fitted with the first lead screw 13. A first lead screw nut 14 is sleeved on the outside of the first lead screw 13. A mounting frame 15 is mounted on the side wall of the first lead screw nut 14. An auxiliary roller 16 is rotatably mounted on the bottom of the mounting frame 15 to limit the battery cells wound on the outside of the take-up roller body 8. The fixing frame 11 has a U-shaped cross-section. The first lead screw nut 14 slides against the inner wall of the fixing frame 11. The auxiliary roller 16 is positioned above the take-up roller body 8. During the winding of the battery cell, the micro motor 12 drives the first lead screw 13 to rotate slowly clockwise. The rotation of the first lead screw 13 drives the first lead screw nut 14 to move upward. The movement of the first lead screw nut 14 drives the mounting frame 15 to move. The movement of the mounting frame 15 drives the auxiliary roller 16 to move, which can synchronously limit and press the battery cell wound on the outside of the take-up roller body 8. After the replacement of the take-up roller body 8 is completed, the micro motor 12 drives the auxiliary roller 16 to move downward and reset, re-fitting with the take-up roller body 8 to press and solidify the end of the battery cell, assisting in the replacement of the take-up roller body 8 and ensuring the continuous operation of winding.

[0018] like Figure 1 and Figure 4As shown, the auxiliary assembly also includes two sets of stabilizing frames 17, which are symmetrically arranged on one side of the rotating disk 1. The stabilizing frames 17 are connected to the winding machine. A second lead screw 18 is rotatably mounted on the inner wall of the stabilizing frame 17. A limit block is provided at the end of the second lead screw 18. A synchronous transmission wheel 19 is sleeved on the outside of the second lead screw 18. A synchronous transmission belt 20 is sleeved on the outside of the synchronous transmission wheel 19 for transmitting the rotation of the second lead screw 18. A second lead screw nut 21 is sleeved on the outside of the second lead screw 18. A cutting blade 22 is provided on the side wall of the second lead screw nut 21 for cutting the battery cell. A pusher plate 23 is provided on the side wall of the second lead screw nut 21 for unloading the battery cell after winding. The stabilizing frame 17 has an L-shaped cross-section. The second lead screw 18... Driven and controlled by a drive motor, the second lead screw nut 21 is slidably mounted on the inner wall of the stabilizing frame 17. The drive motor, micro motor 12, negative pressure pump 10, first motor 4, and second motor 6 are all connected to the controller. The two sets of second lead screws 18 have different surface pitches. After replacing the main body 8 of the take-up roller, the drive motor drives the second lead screw 18 to rotate clockwise. Under the transmission of the synchronous transmission wheel 19 and synchronous transmission belt 20, the rotation of the second lead screw 18 drives the other set of second lead screws 18 to rotate. The rotation of the second lead screw 18 drives the second lead screw nut 21 to move backward. The movement of the second lead screw nut 21 drives the cutting blade 22 and the pusher plate 23 to move. The movement of the cutting blade 22 can cut the battery cell, and the movement of the pusher plate 23 can unload the battery cell, assisting in the rapid replacement of the main body 8 of the take-up roller, reducing labor costs and alleviating the labor intensity of the workers.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-change device for the take-up roller of a lithium battery cell winding machine, characterized in that, It includes a rotating disk (1), a fixed column (2) is installed on the side wall of the rotating disk (1), the fixed column (2) is rotatably connected to the winding machine, a driving component is provided on the side wall of the rotating disk (1), the driving component is used to replace the main body (8) of the winding roller, and an auxiliary component is provided on one side of the rotating disk (1), the auxiliary component is used to assist in completing the replacement of the main body (8) of the winding roller.

2. The quick replacement device for winding roller of lithium battery cell winding machine according to claim 1, characterized in that: The drive assembly includes a first gear (3), a first motor (4), and two sets of second motors (6). The first gear (3) is sleeved and installed outside the fixed column (2). The first motor (4) is installed on one side of the fixed column (2). The output end of the first motor (4) is equipped with a second gear (5). The two sets of second motors (6) are symmetrically installed on the side wall of the rotating disk (1) by bolts. The output end of the second motor (6) is equipped with a transmission rod (7). The transmission rod (7) is sleeved and installed with a take-up roller body (8).

3. The quick replacement device for winding roller of lithium battery cell winding machine according to claim 2, characterized in that: The first gear (3) meshes with the second gear (5) for transmission, the first motor (4) is connected to the winding machine, and the transmission rod (7) and the main body of the take-up roller (8) are both provided with through holes (9). A negative pressure pump (10) is installed on the side wall of the transmission rod (7).

4. The quick replacement device for winding roller of lithium battery cell winding machine according to claim 1, characterized in that: The auxiliary component includes a fixing frame (11), which is bolted to the side wall of the first motor (4). A micro motor (12) is bolted to the top of the fixing frame (11). A first lead screw (13) is installed at the output end of the micro motor (12). A first lead screw nut (14) is sleeved on the outside of the first lead screw (13). A mounting frame (15) is installed on the side wall of the first lead screw nut (14). An auxiliary roller (16) is rotatably mounted on the bottom of the mounting frame (15).

5. The quick replacement device for winding roller of lithium battery cell winding machine according to claim 4, characterized in that: The fixed frame (11) has a U-shaped cross-section, the first lead screw nut (14) is slidably disposed with the inner wall of the fixed frame (11), and the auxiliary roller (16) is located above the main body (8) of the take-up roller.

6. The quick replacement device for winding roller of lithium battery cell winding machine according to claim 1, characterized in that: The auxiliary components also include two sets of stabilizing frames (17), which are symmetrically arranged on one side of the rotating disk (1). A second lead screw (18) is rotatably installed on the inner wall of the stabilizing frame (17). A synchronous transmission wheel (19) is sleeved on the outside of the second lead screw (18). A synchronous transmission belt (20) is sleeved on the outside of the synchronous transmission wheel (19). A second lead screw nut (21) is sleeved on the outside of the second lead screw (18). A cutting blade (22) is provided on the side wall of the second lead screw nut (21). A pusher plate (23) is provided on the side wall of the second lead screw nut (21).

7. The quick replacement device for winding roller of lithium battery cell winding machine according to claim 6, characterized in that: The stabilizer (17) has an L-shaped cross-section. The second lead screw (18) is driven and controlled by a drive motor. The second lead screw nut (21) is slidably disposed with the inner wall of the stabilizer (17).

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