A new type automatic winding machine applied to 2A high capacity model
By using separator paper to wrap the negative electrode sheet during winding to form a protective layer, the problem of positive electrode breakage is solved, improving the quality and capacity of the battery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN CHAO BA BATTERIES CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-06-12
AI Technical Summary
Traditional winding machines are prone to causing the positive electrode to break during winding, which affects the quality and capacity of the battery.
During winding, the innermost layer of the negative electrode sheet is wrapped with a separator paper to form a protective layer to wrap the positive electrode and prevent it from breaking.
This improved the yield rate of battery electrode sheets, prevented positive electrode breakage, and enhanced battery quality and production efficiency.
Smart Images

Figure CN224350017U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roll-to-roll machine technology, specifically to a new type of automatic roll-to-roll machine for 2A high-capacity models. Background Technology
[0002] The negative electrode sheet is made into a sheet by coating a metal perforated strip with wet slurry, while the positive electrode sheet is made into a sheet by brushing electrode powder into a nickel honeycomb mesh and then pressing it. The application of the edge rolling machine in battery manufacturing is mainly reflected in the processing of battery edges. It can perform edge rolling, uniform folding, and corner bending on the battery edges, making the battery more aesthetically pleasing and enhancing its sealing and dustproof and waterproof performance. In addition, edge rolling machines are also widely used in metal products, electronic products, and automotive parts, which can significantly improve the quality and production efficiency of these products.
[0003] However, traditional roll-to-roll machines have the following drawbacks:
[0004] During winding, the positive electrode is prone to breakage, affecting the battery's quality and capacity. To address this issue, the design incorporates a separator paper wrapping around the negative electrode sheet during winding. The easily breakable portion is located in the innermost layer, protected by the separator paper and the negative electrode, creating a protective layer for the positive electrode and preventing breakage. Utility Model Content
[0005] The purpose of this invention is to provide a new type of automatic winding machine for 2A high-capacity models, to solve the problem mentioned in the background art where the positive electrode is prone to breakage during winding, affecting the quality and capacity of the battery. To address this issue, the design incorporates a separator paper wrapping the negative electrode sheet during winding. The easily breakable layer is located in the innermost layer, protected by the separator paper and the negative electrode, creating a protective layer for the positive electrode and preventing breakage.
[0006] To achieve the above objectives, this utility model provides the following technical solution: A new type of automatic roll-up machine for 2A high-capacity models includes a roll-up frame, a roll-up assembly fixedly installed on one side of the top of the roll-up frame, a lead screw rotatably connected to the top of the inner wall of the roll-up frame, a displacement rod fixedly installed on the roll-up frame above the lead screw, a displacement block slidably connected to the displacement rod in the middle of the lead screw, a lifting assembly fixedly installed at the bottom of the displacement block, a clamping assembly fixedly installed at the bottom of the lifting assembly, the roll-up assembly including two mounting seats and two length guide rails, one side of the top of each of the two mounting seats being fixedly connected to the bottom of the two length guide rails respectively, a movable block slidably connected to the middle of each of the two length guide rails, and a roll-up roller rotatably connected between the two movable blocks.
[0007] Preferably, a cylinder mounting base is fixedly installed on one side of the inner wall of each of the two mounting bases, and a displacement cylinder is fixedly installed on one side of each of the two cylinder mounting bases. The movable ends of the two displacement cylinders are respectively fixedly connected to the opposite side of the two movable blocks. A stepper motor for driving the edge-rolling roller to rotate is fixedly installed on the surface of one of the movable blocks. The bottom ends of the two mounting bases are fixedly connected to the edge-rolling frame. After the stepper motor is powered on, it starts and drives the edge-rolling roller to rotate. The edge-rolling roller performs an edge-rolling operation on the battery electrode sheet. The displacement cylinder performs a telescopic movement and pushes the movable block from one side. The movable block slides along the length guide rail to adjust the edge-rolling position of the edge-rolling roller.
[0008] Preferably, the lifting assembly includes a mounting frame and a lifting platform. A lifting cylinder is fixedly mounted in the middle of the mounting frame. The movable end of the lifting cylinder is fixedly connected to the middle of the top of the lifting platform. Sliding rods that are slidably connected to the mounting frame are fixedly mounted on both sides of the top of the lifting platform. The top of the mounting frame and the fixed end of the lifting cylinder are both fixedly connected to the side facing the displacement block. The bottom end of the lifting platform is fixedly connected to the clamping assembly. The lifting cylinder performs telescopic movement, pushing the lifting platform from the top to adjust the height of the clamped battery electrode sheet of the clamping assembly. During the lifting process, the sliding rods slide relative to the mounting frame.
[0009] Preferably, the clamping assembly includes a motor body and a clamping platform. The output end of the motor body is fixedly connected to the middle of the top of the clamping platform. A sliding groove is provided at the bottom of the clamping platform. A screw is rotatably connected inside the sliding groove. Two sliding blocks that are slidably connected to the sliding groove are threadedly connected to the surface of the screw. A clamping plate is fixedly installed at the bottom of each of the two sliding blocks. A micro motor that drives the screw to rotate is fixedly installed on one side of the clamping platform. When the micro motor is powered on, it starts and drives the screw to rotate. The screw has two threads in opposite directions with its own center line as the dividing line. The threads on the inner walls of the two sliding blocks match the threads on the surface of the screw. The sliding blocks are limited by the sliding groove that matches their shape and size. The two sliding blocks slide relative to each other along the screw. During the sliding process, the position of the clamping plate is adjusted. The two clamping plates cooperate to clamp and fix the battery electrode sheet from both sides.
[0010] Preferably, the top end of the motor body is fixedly connected to the lifting assembly, and the clamping assembly is mounted on the lifting assembly via the motor body.
[0011] Preferably, a servo motor for driving the lead screw to rotate is fixedly installed on the surface of the crimping frame. After the servo motor is powered on, it starts and drives the lead screw to rotate. The thread on the surface of the lead screw matches the thread on the inner wall of the displacement block. The displacement block is limited by a displacement rod that matches its shape and size. Therefore, the displacement block slides along the lead screw to adjust the placement position of the crimped battery electrode sheet.
[0012] Preferably, a material pool is fixedly installed at the bottom of the inner wall of the edge-rolling machine frame, and the batteries that need to be edge-rolled are collected in the material pool.
[0013] Compared with the prior art, the beneficial effects of this utility model are: by setting up the edge-rolling assembly, the displacement cylinder pushes the movable block from one side to adjust the edge-rolling position of the edge-rolling roller. The edge-rolling roller covers the surface of the battery electrode sheet before edge-rolling, and is wrapped by the separator paper and the negative electrode, creating a protective layer to protect the positive electrode, preventing the positive electrode from breaking, and improving the pass rate of the battery electrode sheet after edge-rolling. Attached Figure Description
[0014] Figure 1 This is a side view of the present invention;
[0015] Figure 2 This is a top view of the rolled edge assembly of this utility model;
[0016] Figure 3 This is a side view of the lifting assembly of this utility model;
[0017] Figure 4 This is a cross-sectional view of the clamping assembly of this utility model.
[0018] In the diagram: 1. Edge rolling frame; 2. Edge rolling assembly; 21. Mounting base; 22. Cylinder mounting base; 23. Displacement cylinder; 24. Length guide rail; 25. Stepper motor; 26. Movable block; 27. Edge rolling roller; 3. Material pool; 4. Clamping assembly; 41. Motor body; 42. Clamping platform; 43. Micro motor; 44. Screw; 45. Sliding block; 46. Clamping plate; 47. Sliding groove; 5. Lifting assembly; 51. Mounting frame; 52. Lifting cylinder; 53. Sliding rod; 54. Lifting platform; 6. Displacement block; 7. Displacement rod; 8. Lead screw; 9. Servo motor. Detailed Implementation
[0019] 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.
[0020] Please see Figure 1-4This utility model provides a new type of automatic roll-up machine for a 2A high-capacity model, including a roll-up frame 1, a roll-up assembly 2 fixedly installed on one side of the top of the roll-up frame 1, a lead screw 8 rotatably connected to the top of the inner wall of the roll-up frame 1, a displacement rod 7 fixedly installed on the roll-up frame 1 above the lead screw 8, a displacement block 6 threadedly connected to the middle of the lead screw 8 and slidably connected to the displacement rod 7, a lifting assembly 5 fixedly installed at the bottom of the displacement block 6, a clamping assembly 4 fixedly installed at the bottom of the lifting assembly 5, the roll-up assembly 2 including two mounting seats 21 and two length guide rails 24, one side of the top of the two mounting seats 21 respectively fixedly connected to the bottom of the two length guide rails 24, a movable block 26 slidably connected to the middle of each of the two length guide rails 24, and a roll-up roller 27 rotatably connected between the two movable blocks 26.
[0021] A cylinder mounting base 22 is fixedly installed on one side of the inner wall of each of the two mounting bases 21. A displacement cylinder 23 is fixedly installed on one side of each of the two cylinder mounting bases 22. The movable ends of the two displacement cylinders 23 are fixedly connected to the opposite side of the two movable blocks 26. A stepper motor 25 for driving the edge-rolling roller 27 to rotate is fixedly installed on the surface of one of the movable blocks 26. The bottom ends of the two mounting bases 21 are fixedly connected to the edge-rolling frame 1. After the stepper motor 25 is powered on, it starts and drives the edge-rolling roller 27 to rotate. The edge-rolling roller 27 performs edge-rolling operation on the battery electrode sheet. The displacement cylinder 23 performs telescopic movement and pushes the movable block 26 from one side. The movable block 26 slides along the length guide rail 24 to adjust the edge-rolling position of the edge-rolling roller 27.
[0022] The lifting assembly 5 includes a mounting frame 51 and a lifting platform 54. A lifting cylinder 52 is fixedly installed in the middle of the mounting frame 51. The movable end of the lifting cylinder 52 is fixedly connected to the middle of the top of the lifting platform 54. Sliding rods 53 that are slidably connected to the mounting frame 51 are fixedly installed on both sides of the top of the lifting platform 54. The top of the mounting frame 51 and the fixed end of the lifting cylinder 52 are fixedly connected to the side of the displacement block 6. The bottom end of the lifting platform 54 is fixedly connected to the clamping assembly 4. The lifting cylinder 52 performs telescopic movement. The lifting cylinder 52 pushes the lifting platform 54 from the top to adjust the height of the clamped battery electrode sheet of the clamping assembly 4. During the lifting process, the lifting platform 54 causes the sliding rods 53 to slide relative to the mounting frame 51.
[0023] The clamping assembly 4 includes a motor body 41 and a clamping platform 42. The output end of the motor body 41 is fixedly connected to the middle of the top of the clamping platform 42. A sliding groove 47 is provided at the bottom of the clamping platform 42. A screw 44 is rotatably connected inside the sliding groove 47. Two sliding blocks 45 are threadedly connected to the surface of the screw 44 and are slidably connected to the sliding groove 47. A clamping plate 46 is fixedly installed at the bottom of each of the two sliding blocks 45. A micro motor 43 that drives the screw 44 to rotate is fixedly installed on one side of the clamping platform 42. The micro motor 43 is connected to the screw 44. When powered on, the micro motor 43 drives the screw 44 to rotate. The screw 44 has two threads in opposite directions with its own center line as the dividing line. The threads on the inner walls of the two sliding blocks 45 match the threads on the surface of the screw 44. The sliding blocks 45 are limited by sliding grooves 47 that match their shape and size. The two sliding blocks 45 slide relative to each other along the screw 44. During the sliding process, the position of the clamping plate 46 is adjusted. The two clamping plates 46 cooperate with each other to clamp and fix the battery electrode plates from both sides.
[0024] The top of the motor body 41 is fixedly connected to the lifting assembly 5, and the clamping assembly 4 is mounted on the lifting assembly 5 through the motor body 41.
[0025] A servo motor 9 that drives the lead screw 8 to rotate is fixedly installed on the surface of the crimping frame 1. After the servo motor 9 is powered on, it starts and drives the lead screw 8 to rotate. The thread on the surface of the lead screw 8 matches the thread on the inner wall of the displacement block 6. The displacement block 6 is limited by the displacement rod 7, which matches its shape and size. Therefore, the displacement block 6 slides along the lead screw 8 to adjust the placement position of the crimped battery electrode sheet.
[0026] A material pool 3 is fixedly installed at the bottom of the inner wall of the edge-rolling machine frame 1, and the batteries that need to be rolled are collected in the material pool 3.
[0027] In this embodiment, when in use: The servo motor 9 is powered on and starts, driving the lead screw 8 to rotate. The thread on the surface of the lead screw 8 matches the thread on the inner wall of the displacement block 6. The displacement block 6 is limited by the displacement rod 7, which matches its shape and size. Therefore, the displacement block 6 slides along the lead screw 8, adjusting the placement position of the rolled battery electrode sheet. The lifting cylinder 52 performs telescopic movement, pushing the lifting platform 54 from the top to adjust the height of the clamping battery electrode sheet of the clamping assembly 4. During the lifting process, the lifting platform 54 causes the sliding rod 53 to slide relative to the mounting bracket 51. The micro motor 43 is powered on and starts, driving the screw 44 to rotate. The screw 44 has two threads in opposite directions with its own center line as the dividing line. The threads on the inner walls of the two sliding blocks 45 match the threads on the surface of the screw 44, and the sliding blocks 45 are limited by the displacement rod 7, which matches its shape and size. The sliding groove 47 is used for limiting the position of the two sliding blocks 45, which slide relative to each other along the screw 44. During the sliding process, the sliding blocks 45 adjust the position of the clamping plate 46. The two clamping plates 46 cooperate with each other to clamp and fix the battery electrode sheet from both sides. After the motor body 41 is powered on, it starts and drives the clamping table 42 to move synchronously to adjust the clamping direction of the battery electrode sheet. After the stepper motor 25 is powered on, it starts and drives the edge-rolling roller 27 to rotate. The edge-rolling roller 27 performs edge-rolling operation on the battery electrode sheet. The displacement cylinder 23 performs telescopic movement and pushes the movable block 26 from one side. The movable block 26 slides along the length guide rail 24 to adjust the edge-rolling position of the edge-rolling roller 27. During winding, the separator paper wraps the negative electrode sheet. The easily broken part is in the innermost layer. It is wrapped by the separator paper and the negative electrode, which creates a protective layer to protect the positive electrode and prevent the positive electrode from breaking.
[0028] Although the present invention 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 invention should be included within the protection scope of the present invention.
Claims
1. A new type of automatic roll-to-roll machine for 2A high-capacity models, comprising a roll-to-roll frame (1), characterized in that: An edge-rolling assembly (2) is fixedly installed on one side of the top of the edge-rolling machine frame (1). A lead screw (8) is rotatably connected to the top of the inner wall of the edge-rolling machine frame (1). A displacement rod (7) located above the lead screw (8) is fixedly installed on the edge-rolling machine frame (1). A displacement block (6) that is slidably connected to the displacement rod (7) is threadedly connected to the middle of the lead screw (8). A lifting assembly (5) is fixedly installed at the bottom of the displacement block (6). A clamping assembly (4) is fixedly installed at the bottom of the lifting assembly (5). The edge-rolling assembly (2) includes two mounting seats (21) and two length guide rails (24). One side of the top of the two mounting seats (21) is fixedly connected to the bottom of the two length guide rails (24). A movable block (26) is slidably connected to the middle of the two length guide rails (24). An edge-rolling roller (27) is rotatably connected between the two movable blocks (26).
2. The new automatic winding machine for high-capacity 2A models according to claim 1, characterized in that: A cylinder mounting base (22) is fixedly installed on one side of the inner wall of each of the two mounting bases (21). A displacement cylinder (23) is fixedly installed on one side of each of the two cylinder mounting bases (22). The movable ends of the two displacement cylinders (23) are fixedly connected to the opposite side of the two movable blocks (26). A stepper motor (25) for driving the edge rolling roller (27) to rotate is fixedly installed on the surface of one of the movable blocks (26). The bottom ends of the two mounting bases (21) are fixedly connected to the edge rolling frame (1).
3. The new automatic winding machine for high-capacity 2A models according to claim 1, characterized in that: The lifting assembly (5) includes a mounting frame (51) and a lifting platform (54). A lifting cylinder (52) is fixedly installed in the middle of the mounting frame (51). The movable end of the lifting cylinder (52) is fixedly connected to the middle of the top of the lifting platform (54). Sliding rods (53) that are slidably connected to the mounting frame (51) are fixedly installed on both sides of the top of the lifting platform (54). The top of the mounting frame (51) and the fixed end of the lifting cylinder (52) are fixedly connected to the side opposite to the displacement block (6). The bottom end of the lifting platform (54) is fixedly connected to the clamping assembly (4).
4. The new automatic winding machine for high-capacity 2A models according to claim 1, characterized in that: The clamping assembly (4) includes a motor body (41) and a clamping platform (42). The output end of the motor body (41) is fixedly connected to the middle of the top of the clamping platform (42). A sliding groove (47) is provided at the bottom of the clamping platform (42). A screw (44) is rotatably connected inside the sliding groove (47). Two sliding blocks (45) that are slidably connected to the sliding groove (47) are threaded on the surface of the screw (44). A clamping plate (46) is fixedly installed at the bottom of each of the two sliding blocks (45). A micro motor (43) that drives the screw (44) to rotate is fixedly installed on one side of the clamping platform (42).
5. The new automatic winding machine for high-capacity 2A models according to claim 4, characterized in that: The top of the motor body (41) is fixedly connected to the lifting assembly (5).
6. The new automatic winding machine for high-capacity 2A models according to claim 1, characterized in that: A servo motor (9) that drives the lead screw (8) to rotate is fixedly installed on the surface of the edge rolling frame (1).
7. The new automatic winding machine for high-capacity 2A models according to claim 1, characterized in that: A material pool (3) is fixedly installed at the bottom of the inner wall of the edge rolling machine frame (1).