Winding device for carbon-coated aluminum foil
By introducing a correction and cleaning mechanism into the carbon-coated aluminum foil winding device, the problems of deviation and impurities in the winding process of carbon-coated aluminum foil of different specifications are solved, realizing an efficient and stable winding process and improving the performance and production efficiency of lithium-ion batteries.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-07
AI Technical Summary
Existing carbon-coated aluminum foil winding devices lack the corrective function when dealing with carbon-coated aluminum foil of different sizes and specifications, resulting in the aluminum foil shifting, wrinkling, or even breaking during the winding process, which cannot meet the diverse production needs.
A carbon-coated aluminum foil winding device was designed, which adopts a correction mechanism and a cleaning mechanism. Through the flexible adjustment of the guide plate and cleaning roller, it can achieve precise correction and automatic cleaning of carbon-coated aluminum foil of different specifications, and avoid the accumulation of impurities.
This effectively avoids the shift and wrinkling of aluminum foil during the winding process, improves winding quality, ensures the performance and production efficiency of lithium-ion batteries, and enhances product qualification rate and market competitiveness.
Smart Images

Figure CN224091300U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of winding equipment technology, and more specifically, to a winding device for carbon-coated aluminum foil. Background Technology
[0002] In the manufacturing process of lithium-ion batteries, carbon-coated aluminum foil is a crucial electrode material, and its winding quality directly affects battery performance and production efficiency. Carbon-coated aluminum foil winding devices organize and store the foil by winding it systematically onto a winding shaft. However, with the increasing demand for product diversification in the lithium-ion battery market, the width, thickness, and other dimensional specifications of carbon-coated aluminum foil are becoming increasingly diverse. Existing carbon-coated aluminum foil winding devices have significant shortcomings in their web correction function. Most use fixed-structure web correction components, which cannot flexibly adjust to different sizes of carbon-coated aluminum foil. When faced with carbon-coated aluminum foil of varying widths, traditional web correction devices struggle to accurately position and correct the foil's trajectory, leading to problems such as foil misalignment, wrinkles, and even breakage during winding. This severely restricts the application of carbon-coated aluminum foil winding devices in diverse production scenarios, thus necessitating improvements. Utility Model Content
[0003] In order to overcome the shortcomings of the prior art, this utility model provides a winding device for carbon-coated aluminum foil, which has the advantage of being able to correct the deviation of carbon-coated aluminum foil of different specifications.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a winding device for carbon-coated aluminum foil, comprising:
[0005] A base, the top of which is fixedly mounted with a vertical plate;
[0006] A correction mechanism is provided at the top of the base;
[0007] The correction mechanism includes a fixed frame, the bottom of which is fixedly connected to the top of the base. A drive motor is fixedly mounted on the fixed frame. A screw is fixedly sleeved on the output shaft of the drive motor. A moving block is threaded onto the outer surface of the screw. A first hinge block is fixedly mounted on the top of the moving block. A moving rod is hinged to the outer surface of the first hinge block. A second hinge block is hinged to the end of the moving rod away from the first hinge block. A guide plate is fixedly mounted on the top of the second hinge block. A rotating roller is movably sleeved inside the guide plate. A round shaft is fixedly sleeved inside the rotating roller. The rear end of the round shaft is movably sleeved with the interior of the front side of the vertical plate.
[0008] As a preferred embodiment of this utility model, a bracket is fixedly installed on the back of the vertical plate, a power motor is fixedly installed on the back of the bracket, and a rotating shaft is fixedly sleeved on the output shaft of the power motor.
[0009] In a preferred embodiment of this invention, a drive wheel is fixedly sleeved on the outer surface of the rotating shaft, a first square rod is fixedly sleeved on the front end of the rotating shaft, and a take-up roller is movably sleeved on the outer surface of the first square rod.
[0010] As a preferred embodiment of this utility model, a short shaft is movably sleeved inside the left side of the front of the vertical plate, a second square rod is fixedly sleeved at the front end of the short shaft, and an unwinding roller is movably sleeved on the outer surface of the second square rod.
[0011] As a preferred embodiment of this utility model, the front ends of the first and second square rods are both threaded with bolts, and the outer surface of the bolts is in contact with the front of the take-up roller and the unwind roller.
[0012] As a preferred embodiment of this utility model, a long shaft is movably sleeved inside the front of the vertical plate, and a guide roller is fixedly sleeved on the outer surface of the long shaft, with the outer surface of the guide roller in contact with the carbon-coated aluminum foil.
[0013] As a preferred embodiment of this utility model, a rotating shaft is movably sleeved inside the vertical plate, and a driven wheel is fixedly sleeved at the rear end of the rotating shaft. The driven wheel is connected to the driving wheel via a transmission belt.
[0014] As a preferred embodiment of this utility model, a cleaning roller is fixedly sleeved on the outer surface of the rotating shaft, and the outer surface of the cleaning roller is in contact with the carbon-coated aluminum foil.
[0015] As a preferred embodiment of this utility model, a fixing plate is fixedly installed at the top of the vertical plate, a fan is fixedly installed at the top of the fixing plate, and a connecting pipe is fixedly installed at the bottom of the fan.
[0016] As a preferred embodiment of this utility model, the bottom end of the connecting pipe is fixedly sleeved with an air outlet, and the outer surface of the air outlet is fixedly sleeved with the interior of the vertical plate.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] 1. This carbon-coated aluminum foil winding device, due to the design of the correction mechanism, effectively overcomes the defects of the prior art. It can flexibly adjust the guide plate according to the size specifications of the carbon-coated aluminum foil, and can adapt to both narrow and wide aluminum foil. This greatly expands the application range of the winding device in diverse production scenarios, effectively avoids the aluminum foil from shifting or wrinkling during the winding process, significantly improves the winding quality, and thus ensures the performance and production efficiency of lithium-ion batteries.
[0019] 2. This carbon-coated aluminum foil winding device can automatically remove dust, debris, and other impurities from the surface of the carbon-coated aluminum foil during the winding process. It achieves simultaneous winding and cleaning without the need for additional machine downtime for cleaning, greatly improving production efficiency. It effectively prevents impurities from accumulating on the aluminum foil surface, preventing impurities from affecting the conductivity and stability of the electrode material. This ensures the performance of lithium-ion batteries from the source, significantly improves the product qualification rate, enhances the product's competitiveness in the market, and avoids winding interruptions and rework caused by surface impurities. It ensures efficient and continuous operation of the production process, providing strong support for enterprises to increase production capacity and shorten production cycles. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the rear view structure of this utility model;
[0022] Figure 3 This is a cross-sectional structural diagram of the power motor of this utility model;
[0023] Figure 4 This is a cross-sectional view of the guide roller of this utility model;
[0024] Figure 5 This is a cross-sectional structural diagram of the guide plate of this utility model;
[0025] Figure 6 This is a cross-sectional view of the drive motor of this utility model;
[0026] Figure 7 This is a schematic diagram of the air outlet structure of this utility model;
[0027] Figure 8 This is a cross-sectional view of the cleaning roller of this utility model;
[0028] Figure 9 This is a cross-sectional view of the unwinding roller of this utility model.
[0029] In the diagram: 1. Base; 2. Vertical plate; 3. Fixing frame; 4. Drive motor; 5. Screw; 6. Moving block; 7. First hinge block; 8. Moving rod; 9. Second hinge block; 10. Guide plate; 11. Rotating roller; 12. Round shaft; 13. Bracket; 14. Power motor; 15. Rotating shaft; 16. Drive wheel; 17. First square rod; 18. Take-up roller; 19. Bolt; 20. Short shaft; 21. Second square rod; 22. Unwind roller; 23. Long shaft; 24. Guide roller; 25. Rotating shaft; 26. Driven wheel; 27. Transmission belt; 28. Cleaning roller; 29. Fixing plate; 30. Fan; 31. Connecting pipe; 32. Air outlet. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] like Figures 1 to 9 As shown, this utility model provides a winding device for carbon-coated aluminum foil, comprising:
[0032] Base 1, with a vertical plate 2 fixedly installed at the top of base 1;
[0033] The correction mechanism is located at the top of the base 1;
[0034] The correction mechanism includes a fixed frame 3, the bottom of which is fixedly connected to the top of the base 1. A drive motor 4 is fixedly mounted on the fixed frame 3. A screw 5 is fixedly sleeved on the output shaft of the drive motor 4. A moving block 6 is threaded onto the outer surface of the screw 5. A first hinge block 7 is fixedly mounted on the top of the moving block 6. A moving rod 8 is hinged to the outer surface of the first hinge block 7. A second hinge block 9 is hinged to the end of the moving rod 8 away from the first hinge block 7. A guide plate 10 is fixedly mounted on the top of the second hinge block 9. A rotating roller 11 is movably sleeved inside the guide plate 10. A round shaft 12 is fixedly sleeved inside the rotating roller 11. The rear end of the round shaft 12 is movably sleeved with the front of the vertical plate 2.
[0035] Since the moving block 6 is threadedly connected to the screw 5, when the drive motor 4 runs, the screw 5 will drive the moving block 6 to move during rotation. At this time, the moving block 6 will drive the two moving rods 8 to move through the two first hinge blocks 7. Then, the two moving rods 8 will drive the two guide plates 10 to move towards each other along the outer surface of the two rotating rollers 11 through the two second hinge blocks 9. Since the guide plates 10 themselves have a guiding and correction function, when the guide plates 10 move towards each other, they can adapt to the width of different sizes of carbon-coated aluminum foil, and thus can correct the deviation of carbon-coated aluminum foil of different specifications.
[0036] Among them, a bracket 13 is fixedly installed on the back of the vertical plate 2, a power motor 14 is fixedly installed on the back of the bracket 13, and a rotating shaft 15 is fixedly sleeved on the output shaft of the power motor 14.
[0037] When the power motor 14 is running, the shaft 15 will rotate.
[0038] A drive wheel 16 is fixedly sleeved on the outer surface of the rotating shaft 15, a first square rod 17 is fixedly sleeved on the front end of the rotating shaft 15, and a take-up roller 18 is movably sleeved on the outer surface of the first square rod 17.
[0039] When the rotating shaft 15 rotates, it will simultaneously drive the drive wheel 16 and the first square rod 17 to rotate. At this time, the first square rod 17 will drive the take-up roller 18 to rotate, and the take-up roller 18 will take up the carbon-coated aluminum foil while rotating.
[0040] Among them, a short shaft 20 is movably sleeved inside the left side of the front of the vertical plate 2, a second square rod 21 is fixedly sleeved at the front end of the short shaft 20, and an unwinding roller 22 is movably sleeved on the outer surface of the second square rod 21.
[0041] Since the short shaft 20 is internally and movably connected to the vertical plate 2, the pulling force generated when the take-up roller 18 takes up the carbon-coated aluminum foil will cause the unwind roller 22 to rotate around the connection point between the short shaft 20 and the vertical plate 2.
[0042] Among them, the front ends of the first square rod 17 and the second square rod 21 are both threaded with bolts 19, and the outer surface of the bolts 19 is in contact with the front of the take-up roller 18 and the unwind roller 22.
[0043] Due to the design of bolt 19, when bolt 19 comes into contact with take-up roller 18 or unwind roller 22, it will block the movement of take-up roller 18 and unwind roller 22, so that take-up roller 18 and unwind roller 22 can be fixed on the outer surface of the first square rod 17 and the second square rod 21.
[0044] Among them, a long shaft 23 is movably sleeved inside the front of the vertical plate 2, and a guide roller 24 is fixedly sleeved on the outer surface of the long shaft 23. The outer surface of the guide roller 24 is in contact with the carbon-coated aluminum foil.
[0045] Because the long shaft 23 is internally and movably connected to the vertical plate 2, the guide roller 24 can rotate around the connection point between the long shaft 23 and the vertical plate 2. Due to the design of the guide roller 24, it will play a good guiding role for the carbon-coated aluminum foil.
[0046] The vertical plate 2 has a rotating shaft 25 movably sleeved inside, and a driven wheel 26 is fixedly sleeved at the rear end of the rotating shaft 25. The driven wheel 26 is connected to the drive wheel 16 through a transmission belt 27.
[0047] When the drive wheel 16 rotates, it will drive the driven wheel 26 to rotate through the transmission belt 27. Since the rotating shaft 25 is movably connected to the inside of the vertical plate 2, the driven wheel 26 will drive the rotating shaft 25 to rotate along the inside of the vertical plate 2.
[0048] The outer surface of the rotating shaft 25 is fixedly fitted with a cleaning roller 28, and the outer surface of the cleaning roller 28 is in contact with the carbon-coated aluminum foil.
[0049] When the rotating shaft 25 rotates, it will drive the cleaning roller 28 to rotate. Due to the design of the cleaning roller 28, the surface of the carbon-coated aluminum foil will be cleaned when the cleaning roller 28 rotates.
[0050] Among them, a fixing plate 29 is fixedly installed at the top of the vertical plate 2, a fan 30 is fixedly installed at the top of the fixing plate 29, and a connecting pipe 31 is fixedly installed at the bottom of the fan 30.
[0051] When the fan 30 is running, it will blow air into the connecting pipe 31.
[0052] The bottom end of the connecting pipe 31 is fixedly sleeved with an air outlet 32, and the outer surface of the air outlet 32 is fixedly sleeved with the interior of the vertical plate 2.
[0053] When the air blown out by the fan 30 enters the inside of the connecting pipe 31, it will enter the inside of the air outlet 32 through the inside of the connecting pipe 31, and be blown towards the carbon-coated aluminum foil under the guidance of the air outlet 32, so that the dust cleaned by the cleaning roller 28 can be removed from the surface of the carbon-coated aluminum foil under the force of the wind.
[0054] Working principle and usage process of this utility model:
[0055] First, the operator places the take-up roller 18 and the unwind roller 22 onto the first square rod 17 and the second square rod 21, respectively. Then, the operator screws two bolts 19 into the first square rod 17 and the second square rod 21, respectively. When the outer surface of the bolts 19 contacts the take-up roller 18 and the unwind roller 22, the bolts 19 will fix the take-up roller 18 and the unwind roller 22 onto the first square rod 17 and the second square rod 21, respectively. Next, the operator pulls the carbon-coated aluminum foil wound on the outer surface of the unwind roller 22, causing the carbon-coated aluminum foil to be tightly adhered to the outer surfaces of the guide roller 24 and the rotating roller 11, ultimately fixing the carbon-coated aluminum foil onto the take-up roller 18. Due to the design of the guide roller 24 and the rotating roller 11, the carbon-coated aluminum foil will have a good guiding effect. Then, the operator starts the drive motor 4, at which point the screw 5 will rotate. The outer surface of rod 5 is threadedly connected to the inner thread of moving block 6. Therefore, when screw 5 rotates, it will drive moving block 6 to move. At the same time, moving block 6 will drive two moving rods 8 through two first hinge blocks 7. At this time, the other ends of the two moving rods 8 will pull the two second hinge blocks 9 respectively, so that the two second hinge blocks 9 will drive the two guide plates 10 to move. Since the inside of the guide plate 10 is movably connected to the outer surface of the rotating roller 11, the two guide plates 10 will move towards each other along the outer surface of the two rotating rollers 11. When the outer surface of the two guide plates 10 contacts the carbon-coated aluminum foil during the opposite movement, the operator will turn off the drive motor 4. At this time, the two guide plates 10 will be able to play a good guiding and correction role for the carbon-coated aluminum foil, thereby realizing the function of correcting carbon-coated aluminum foil of different specifications.
[0056] The operator then starts the power motor 14. At this time, the rotating shaft 15 will simultaneously drive the drive wheel 16 and the first square rod 17 to rotate. The first square rod 17 will then drive the take-up roller 18 to rotate, so as to achieve the function of taking up the carbon-coated aluminum foil. At the same time, the drive wheel 16 will drive the two driven wheels 26 to rotate through the transmission belt 27. The two driven wheels 26 will then drive the two cleaning rollers 28 to rotate through the two rotating shafts 25. Due to the design of the cleaning rollers 28, when the two cleaning rollers 28 rotate, they will clean the dust attached to the carbon-coated aluminum foil. Next, the operator starts the fan 30. The fan 30 will then blow air into the air outlet 32 through the connecting pipe 31. This air will then be blown onto the surface of the carbon-coated aluminum foil through the air outlet 32, so that the dust that has been swept off will be removed from the surface of the carbon-coated aluminum foil by the wind force, thereby achieving the effect of automatically cleaning the carbon-coated aluminum foil.
[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0058] 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 winding device for carbon-coated aluminum foil, characterized in that, Including: A base (1) is provided with a vertical plate (2) fixedly installed at the top of the base (1). A correction mechanism is provided at the top of the base (1); The correction mechanism includes a fixed frame (3), the bottom end of which is fixedly connected to the top end of the base (1). A drive motor (4) is fixedly installed on the fixed frame (3). A screw (5) is fixedly sleeved on the output shaft of the drive motor (4). A moving block (6) is threaded on the outer surface of the screw (5). A first hinge block (7) is fixedly installed on the top end of the moving block (6). A moving rod (8) is hinged on the outer surface of the first hinge block (7). A second hinge block (9) is hinged on the end of the moving rod (8) away from the first hinge block (7). A guide plate (10) is fixedly installed on the top end of the second hinge block (9). A rotating roller (11) is movably sleeved inside the guide plate (10). A round shaft (12) is fixedly sleeved inside the rotating roller (11). The rear end of the round shaft (12) is movably sleeved inside the front of the vertical plate (2).
2. The winding device for carbon-coated aluminum foil according to claim 1, characterized in that: A bracket (13) is fixedly installed on the back of the vertical plate (2), and a power motor (14) is fixedly installed on the back of the bracket (13). The output shaft of the power motor (14) is fixedly sleeved with a rotating shaft (15).
3. The winding device for carbon-coated aluminum foil according to claim 2, characterized in that: A drive wheel (16) is fixedly sleeved on the outer surface of the rotating shaft (15), and a first square rod (17) is fixedly sleeved on the front end of the rotating shaft (15). A take-up roller (18) is movably sleeved on the outer surface of the first square rod (17).
4. The winding device for carbon-coated aluminum foil according to claim 1, characterized in that: The vertical plate (2) has a short shaft (20) movably sleeved inside the left side of the front side. The front end of the short shaft (20) is fixedly sleeved with a second square rod (21). The outer surface of the second square rod (21) is movably sleeved with an unwinding roller (22).
5. The winding device for carbon-coated aluminum foil according to claim 4, characterized in that: The first square rod (17) and the second square rod (21) are both threaded with bolts (19) at their front ends. The outer surface of the bolts (19) is in contact with the front of the take-up roller (18) and the unwind roller (22).
6. The winding device for carbon-coated aluminum foil according to claim 1, characterized in that: The vertical plate (2) has a long shaft (23) movably sleeved inside the front side, and a guide roller (24) is fixedly sleeved on the outer surface of the long shaft (23). The outer surface of the guide roller (24) is in contact with the carbon-coated aluminum foil.
7. The winding device for carbon-coated aluminum foil according to claim 1, characterized in that: The vertical plate (2) is movably fitted with a rotating shaft (25), and a driven wheel (26) is fixedly fitted at the rear end of the rotating shaft (25). The driven wheel (26) is connected to the drive wheel (16) via a transmission belt (27).
8. The winding device for carbon-coated aluminum foil according to claim 7, characterized in that: A cleaning roller (28) is fixedly sleeved on the outer surface of the rotating shaft (25), and the outer surface of the cleaning roller (28) is in contact with the carbon-coated aluminum foil.
9. The winding device for carbon-coated aluminum foil according to claim 1, characterized in that: A fixing plate (29) is fixedly installed at the top of the vertical plate (2), a fan (30) is fixedly installed at the top of the fixing plate (29), and a connecting pipe (31) is fixedly installed at the bottom of the fan (30).
10. A winding device for carbon-coated aluminum foil according to claim 9, characterized in that: The bottom end of the connecting pipe (31) is fixedly sleeved with an air outlet (32), and the outer surface of the air outlet (32) is fixedly sleeved with the inside of the vertical plate (2).