Winding assisting device and winding device
By leveraging the combined action of the roll diameter monitoring and limiting components of the winding aid device, the alignment and deviation problems during the winding process of ultra-thin and ultra-narrow copper foil were solved, improving winding accuracy and foil roll quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-30
- Publication Date
- 2026-03-13
AI Technical Summary
When processing ultra-thin and ultra-narrow copper foil, existing winding devices often fail to align the initial inner rings properly, leading to deviations and side collapses during the winding process. This results in low winding accuracy and poor foil roll quality.
The winding aid device includes a drive system, a roll diameter monitoring system, a support roller, and a limiting component. The roll diameter monitoring system monitors changes in the diameter of the copper foil roll, the drive system adjusts the moving speed of the limiting part to ensure that the limiting part is synchronized with the copper foil roll, the support roller provides tension balance, and the limiting component provides positioning and guidance to prevent deviation and collapse.
It improves the precision and quality of ultra-thin and ultra-narrow copper foil winding, avoids initial inner ring misalignment and deviation during winding, and ensures the positional stability and overall quality of the copper foil roll.
Smart Images
Figure CN223990705U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of foil winding technology, and more specifically, to a winding aid device and a winding device. Background Technology
[0002] Ultra-thin and ultra-narrow copper foil, as a key material, plays a crucial role in industries such as new energy vehicle batteries, flexible printed circuit boards (FPCs), and microelectronic packaging. Its lightweight, thin, and flexible properties not only significantly improve product integration and energy efficiency but also reduce raw material consumption and finished product weight while maintaining conductivity, aligning with the trends of green manufacturing and sustainable development. However, these excellent physical properties also present significant challenges to the processing of ultra-thin and ultra-narrow copper foil.
[0003] Existing winding equipment performs adequately when handling copper foil of normal thickness and width, but it exhibits numerous limitations and defects when dealing with ultra-thin and ultra-narrow copper foil with a thickness ≤6μm and a width ≤5mm. Due to the low mechanical strength and difficulty in tension control of ultra-thin and ultra-narrow copper foil, it is highly susceptible to interference from external factors during the winding process. This leads to difficulties in aligning the initial inner coils, deviation during winding, and side collapse, severely affecting winding accuracy and thus reducing the quality of the copper foil roll and the feasibility of subsequent processing. Utility Model Content
[0004] The main purpose of this utility model is to provide a winding aid and a winding device that can solve the problems of low winding accuracy and poor foil quality when the existing winding device is used to wind ultra-thin and ultra-narrow copper foil. These problems include difficulty in aligning the initial inner ring during winding, easy deviation during winding, and easy collapse on the side.
[0005] To achieve the above objectives, according to one aspect of the present invention, a winding aid device is provided, including a drive system, a roll diameter monitoring system, a support roller, and a limiting component. The drive system includes a drive unit, a copper foil roll is disposed on the support roller, and the limiting component includes a limiting unit disposed on both sides of the copper foil roll and capable of moving along the Y-axis direction. The roll diameter monitoring system can monitor the roll diameter of the copper foil roll, and the drive unit can adjust the movement of the limiting unit along the Y-axis direction according to the roll diameter.
[0006] Furthermore, the winding aid device includes a first mounting base and a second mounting base, and the drive system also includes a transmission assembly, which includes a transmission part. The first end of the transmission part passes through the first mounting base and is connected to the drive end of the drive part, and the second end of the transmission part is rotatably mounted on the second mounting base. The limiting assembly is connected to the transmission part in a transmission connection.
[0007] Furthermore, the limiting component includes a first mounting section that extends along the X-axis direction, a limiting part is disposed on the first mounting section, and a first end of the first mounting section is connected to a transmission part for transmission, the transmission part being able to drive the first mounting section to move along the Y-axis direction.
[0008] Furthermore, the limiting assembly also includes a second mounting section and a connecting section. The second mounting section is located on the side of the first mounting section away from the support roller and is parallel to the first mounting section. The first end of the second mounting section is connected to the transmission part for transmission. The connecting section connects the second end of the first mounting section and the second end of the second mounting section.
[0009] Furthermore, the roll diameter monitoring system includes an ultrasonic sensor or a laser rangefinder sensor, which is mounted on the first mounting section. The detection surface of the ultrasonic sensor or laser rangefinder sensor faces the winding surface of the copper foil roll and is capable of monitoring the thickness change of the copper foil roll.
[0010] Furthermore, multiple limiting parts are spaced apart along the X-axis on the first mounting section, forming a limiting space between two adjacent limiting parts, and the copper foil roll corresponds one-to-one with the limiting space.
[0011] Furthermore, an elastic buffer layer is provided on the surface of the limiting part facing the limiting space.
[0012] Furthermore, the first mounting section is provided with an axially extending adjustment groove, and the limiting part can slide along the adjustment groove to adjust the size of the limiting space. The limiting part or the first mounting section is also provided with a locking component, which can lock the position of the limiting part.
[0013] Furthermore, the transmission assembly also includes a reduction mechanism, the input end of which is connected to the output end of the drive unit, and the output end of the reduction mechanism is connected to the input end of the transmission unit.
[0014] Furthermore, the winding aid also includes a dustproof sealing cover, which is installed on the transmission unit.
[0015] According to another aspect of the present invention, a winding device is also provided, including the above-described winding aid device.
[0016] Furthermore, applying the technical solution of this utility model, the drive system is the power source of the entire device. For example, the drive unit, such as the motor, is its core component, responsible for providing power for the movement of the limiting part along the Y-axis. The roll diameter monitoring system can monitor the change in the roll diameter of the copper foil roll during the slitting and winding process using sensors such as ultrasonic sensors or laser sensors. This provides a basis for the drive unit to adjust the following speed of the limiting part, ensuring the centering accuracy of the copper foil roll during winding and avoiding winding deviation and uneven inner rings caused by changes in roll diameter. The support roller is the carrier of the copper foil roll. It not only bears the weight of the copper foil roll but also expands and contracts in conjunction with the separating component to ensure balanced tension of the copper foil roll during winding, preventing wrinkles or breakage of the copper foil during winding. The limiting component includes limiting parts located on both sides of the copper foil roll. As the copper foil roll gradually forms on the support roller, the limiting parts can move along the Y-axis in sync with the speed of the change in the copper foil roll diameter, providing positioning and guidance for the copper foil from both sides. This ensures the stability of the copper foil's position during winding, avoiding irregularities in the shape and internal structure of the copper foil roll caused by positional deviation, thus improving the overall quality of the roll. This invention uses a roll diameter monitoring system to monitor the change in the copper foil roll diameter during winding. The drive unit of the drive system adjusts the movement speed of the limiting parts along the Y-axis based on the monitored roll diameter, keeping the limiting parts synchronized with the increase in the copper foil roll diameter. This ensures that the limiting parts can always limit the copper foil from both sides of the roll, thus preventing initial misalignment of the inner ring and deviation during winding when winding ultra-thin and ultra-narrow copper foil. It also prevents side collapse, thereby solving the problems of low winding accuracy and poor foil roll quality. Attached Figure Description
[0017] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. In the drawings:
[0018] Figure 1 A schematic diagram of the overall structure of the winding aid device of this utility model is shown;
[0019] Figure 2 The front view of the limiting part of the winding aid device of this utility model is shown.
[0020] The above figures include the following reference numerals:
[0021] 11. Drive unit; 121. Transmission unit; 122. Reduction mechanism; 2. Roll diameter monitoring system; 21. Vision sensor; 22. Movable guide rail; 3. Support roller; 41. Limiting part; 411. Elastic buffer layer; 412. Transition surface; 42. First mounting section; 43. Second mounting section; 44. Connecting section; 45. Limiting space; 5. Copper foil roll; 6. First mounting base; 7. Second mounting base. Detailed Implementation
[0022] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.
[0023] See also Figures 1 to 2 As shown, this utility model provides a winding aid device, which includes a drive system, a roll diameter monitoring system 2, a support roller 3, and a limiting component. The drive system includes a drive unit 11, and a copper foil roll 5 is disposed on the support roller 3. The limiting component includes a limiting part 41, which is disposed on both sides of the copper foil roll 5 and can move along the Y-axis. The roll diameter monitoring system 2 can monitor the roll diameter of the copper foil roll 5, and the drive unit 11 can adjust the movement of the limiting part 41 along the Y-axis according to the roll diameter.
[0024] In the above technical solution, the drive system is the power source of the entire device. For example, the drive unit 11, such as the motor, is its core component, responsible for providing power for the movement of the limiting unit 41 along the Y-axis. The roll diameter monitoring system 2 can monitor the change in roll diameter of the copper foil roll 5 during the slitting and winding process using sensors such as ultrasonic sensors or laser sensors. This provides a basis for the drive unit 11 to adjust the following speed of the limiting unit 41, ensuring the centering accuracy of the copper foil roll 5 during winding and avoiding winding deviation and uneven inner rings caused by changes in roll diameter. The support roller 3 is the carrier of the copper foil roll 5. It not only bears the weight of the copper foil roll 5, but also performs expansion and contraction actions in conjunction with the separating component to ensure the tension of the copper foil roll 5 is balanced during winding and to prevent wrinkles or breakage of the copper foil during winding. The limiting component includes a limiting part 41, which is disposed on both sides of the copper foil roll 5. When the copper foil roll 5 is gradually formed on the support roller 3, the limiting part 41 can move along the Y-axis in accordance with the speed of the change in the diameter of the copper foil roll 5, providing positioning and guidance for both sides of the copper foil, thereby ensuring the stability of the copper foil position during the winding process, avoiding irregular shape and internal structure disorder of the copper foil roll 5 due to positional deviation, and improving the overall quality of the roll.
[0025] This invention monitors the change in the diameter of the copper foil roll 5 during the winding process by setting up a roll diameter monitoring system 2. The drive unit 11 of the drive system adjusts the moving speed of the limiting unit 41 along the Y-axis according to the monitored roll diameter, so that the limiting unit 41 keeps synchronized with the increase in the diameter of the copper foil roll 5. This ensures that the limiting unit 41 can always limit the copper foil from both sides of the copper foil roll 5, thereby avoiding the phenomenon that the initial inner ring is not easy to align and that the roll is prone to deviation when dealing with ultra-thin and ultra-narrow copper foil. At the same time, it prevents the side from collapsing, thus solving the problems of low winding accuracy and poor foil quality.
[0026] In one embodiment of the present invention, the winding aid device includes a first mounting base 6 and a second mounting base 7. The drive system further includes a transmission assembly, which includes a transmission part 121. The first end of the transmission part 121 passes through the first mounting base 6 and is connected to the drive end of the drive part 11. The second end of the transmission part 121 is rotatably disposed on the second mounting base 7. The limiting assembly is connected to the transmission part 121 in a transmission connection.
[0027] In the above technical solution, the first mounting base 6 and the second mounting base 7 serve as the structural foundation, providing a stable mounting position for the drive unit 11 and the transmission unit 121, and ensuring the stable operation of the entire transmission system including the drive unit 11 and the transmission unit 121. The transmission unit 121 is a key component for realizing power transmission and speed conversion, and typically includes transmission components such as ball screws. One end of the ball screw passes through the first mounting base 6 and is connected to the drive end of the drive unit 11, receiving the output power from the drive unit 11. The other end is rotatably mounted on the second mounting base 7, allowing the first mounting base 6 and the second mounting base 7 to support the free rotation of the ball screw. The limiting component is connected to the transmission unit 121. Specifically, when the transmission unit 121 includes a ball screw, a threaded sleeve is fitted on the ball screw, and the threaded sleeve is threaded into the ball screw. The limiting component is connected to the threaded sleeve. When the drive unit 11 drives the ball screw to rotate, the rotational motion of the ball screw is converted into linear motion of the limiting component along the Y-axis direction through the threaded sleeve. The drive unit 11 adjusts the output power and speed according to the roll diameter data fed back by the roll diameter monitoring system 2, thereby controlling the movement direction and speed of the limiting component along the Y-axis through the ball screw. This ensures that the following speed of the limiting unit 41 is consistent with the growth rate of the copper foil roll diameter, so that the limiting unit 41 can always keep the copper foil roll on both sides to limit the copper foil roll and avoid problems such as deviation and uneven inner roll due to asynchronous speed during the winding process.
[0028] In one embodiment of the present invention, the limiting component includes a first mounting section 42, which extends along the X-axis direction. A limiting part 41 is disposed on the first mounting section 42. The first end of the first mounting section 42 is connected to the transmission part 121, which can drive the first mounting section 42 to move along the Y-axis direction.
[0029] In the above technical solution, the first mounting section 42 is used to support the limiting part 41. The first mounting section 42 extends along the X-axis direction, and multiple limiting parts 41 are arranged on the first mounting section 42 and evenly distributed along the X-axis direction, thereby providing consistent and uniform limiting pressure to the ultra-thin and ultra-narrow copper foil, avoiding wrinkles or collapse of the copper foil roll 5 due to uneven local pressure during the winding process. The first end of the first mounting section 42 is connected to the transmission part 121, so that the rotational motion output by the drive part 11 is converted into linear motion of the first mounting section 42 and the limiting parts 41 on it along the Y-axis direction through the transmission part 121. This ensures that the drive part 11 can adjust the following speed and following distance of the limiting part 41 relative to the copper foil roll 5 according to the change of the diameter of the copper foil roll 5, so that the limiting part 41 can always keep on both sides of the copper foil roll to limit the winding of the copper foil roll 5, effectively avoiding problems such as deviation or uneven inner coil winding that may occur during the winding process.
[0030] In one embodiment of the present invention, the limiting component further includes a second mounting section 43 and a connecting section 44. The second mounting section 43 is disposed on the side of the first mounting section 42 away from the support roller 3 and is parallel to the first mounting section 42. The first end of the second mounting section 43 is connected to the transmission part 121 for transmission. The connecting section 44 connects the second end of the first mounting section 42 and the second end of the second mounting section 43.
[0031] In the above technical solution, the second mounting section 43 is arranged parallel to the side of the first mounting section 42 away from the support roller 3, and is connected to the second end of the first mounting section 42 through the connecting section 44, thereby forming a complete frame structure. This improves the structural strength of the limiting component and the stability of linear motion along the Y-axis under the drive of the transmission part 121. More importantly, through the second mounting section 43 and the connecting section 44 connected to the second end of the second mounting section 43, the second end of the second mounting section 43 can be driven to respond synchronously with the first end to the power transmitted by the transmission part 121, ensuring that the two ends of the second mounting section 43 move evenly along the Y-axis. This effectively avoids the problem that the spacing between the multiple limiting parts 41 arranged along the X-axis of the first mounting section 42 and the copper foil roll is inconsistent due to the tilt of the first mounting section 42, which leads to the problem of irregular winding shape of the copper foil roll 5.
[0032] In one embodiment of the present invention, the roll diameter monitoring system 2 includes a vision sensor 21, which is disposed on the second mounting base 7. The detection surface of the vision sensor 21 faces the end face of the copper foil roll 5, and the vision sensor 21 can monitor the thickness change of the copper foil roll 5 from the end face of the copper foil roll 5.
[0033] In the above technical solution, the vision sensor 21 is mounted on the second mounting base 7, with its detection surface facing the end face of the copper foil roll 5. This arrangement allows the sensor to directly observe the end face of the copper foil roll and obtain the most direct visual image data. As the diameter of the copper foil roll increases, the vision sensor 21 can continuously capture end face images. The winding aid also includes a control system. The images captured by the vision sensor 21 are transmitted to the image analysis module in the control system. Through the image processing software or algorithm in the image analysis module, specific features in the image can be identified, such as the outline, color, and texture of the end face of the copper foil roll, and the roll diameter and roll diameter change data can be extracted from them. The control system can dynamically adjust the winding speed, the moving speed and position of the limit part 41, or other relevant parameters based on this data to ensure the stability of the winding process and the consistency of product quality.
[0034] In one embodiment of this utility model, the second mounting base 7 is further provided with a movable guide rail 22 extending radially along the copper foil roll, and the vision sensor 21 is slidably mounted on the movable guide rail 22.
[0035] In the above technical solution, the movable guide rail 22 extends radially along the copper foil roll, i.e., along the Y-axis. Its function is to provide a radially sliding track for the vision sensor 21, allowing the vision sensor to automatically adjust its position as the copper foil roll diameter gradually increases. This ensures that the monitoring range of the vision sensor always completely encompasses the edge of the copper foil roll, thereby obtaining accurate roll diameter information. By setting the movable guide rail 22, the vision sensor 21 can adapt to the monitoring needs of copper foil rolls with different diameters, improving the versatility and adaptability of the equipment. The vision sensor 21 can continuously acquire image data throughout the winding process, not only monitoring the radial thickness change of the end face but also observing other abnormalities during the winding process, such as copper foil deviation and surface scratches, improving the comprehensiveness and continuity of winding monitoring.
[0036] In one embodiment of this utility model, the roll diameter monitoring system 2 includes an ultrasonic sensor or a laser rangefinder. The ultrasonic sensor or laser rangefinder is disposed on the first mounting section, and the detection surface of the ultrasonic sensor or laser rangefinder faces the winding surface of the copper foil roll and can monitor the distance between the sensor and the surface of the copper foil roll.
[0037] In the above technical solution, both ultrasonic sensors and laser rangefinders are non-contact measurement technologies, which can avoid physical contact with the material and prevent damage to the ultra-thin and ultra-narrow copper foil. The ultrasonic sensor measures distance using the time difference between sound wave reflection and propagation, while the laser rangefinder uses the reflection time and intensity change of the laser beam to determine distance. Both offer high accuracy and stability in distance measurement. As the winding process progresses, the diameter of the copper foil roll gradually increases. By placing the ultrasonic sensor or laser rangefinder on the first mounting section and monitoring the distance between the sensor and the surface of the copper foil roll, the dynamic increase in the copper foil roll diameter can be calculated. This allows for adjustments to the actions of the winding and limiting components, ensuring the stability and high accuracy of the winding process.
[0038] Specifically, an ultrasonic sensor or a laser rangefinder monitors the distance data between the sensor and the surface of the copper foil roll. The control system calculates the real-time growth rate of the roll diameter based on the distance data and adaptively adjusts the rotation speed of the ball screw. This, in turn, controls the Y-axis movement speed of the first mounting section 42 and the second mounting section 43, ensuring that the following speed of the separator is perfectly matched with the growth of the copper foil roll diameter. This avoids problems such as misalignment and uneven winding caused by asynchronous winding.
[0039] In one embodiment of the present invention, a plurality of limiting parts 41 are spaced apart on the first mounting section 42 along the X-axis direction, and a limiting space 45 is formed between two adjacent limiting parts 41, and the copper foil roll 5 corresponds one-to-one with the limiting space 45.
[0040] In the above technical solution, multiple limiting parts 41 are arranged at intervals along the X-axis, and a limiting space 45 is formed between two adjacent limiting parts 41. The limiting space 45 is used to accommodate and limit the ultra-thin and ultra-narrow copper foil, avoiding problems such as deviation and side collapse during the winding process of the ultra-thin and ultra-narrow copper foil. Each copper foil roll 5 corresponds to one limiting space 45. During winding, the ultra-thin and ultra-narrow copper foil roll is precisely limited by the limiting parts on both sides to prevent lateral displacement of the copper foil roll during the winding process. At the same time, the size design of the limiting space matches the width of the copper foil roll, ensuring the stability and consistency of the winding process. In the initial winding stage, the limiting parts 41 accurately limit the initial inner circle of the copper foil to solve the problem of uneven inner circle winding. During the winding process, the limiting parts 41 continuously apply uniform pressure to the side of the copper foil roll to ensure that the side of the copper foil roll is flat and to avoid the copper foil roll from collapsing or deviating.
[0041] In one embodiment of the present invention, an elastic buffer layer 411 is provided on the surface of the limiting part 41 facing the limiting space 45.
[0042] In the above technical solution, an elastic buffer layer 411, such as silicone or rubber, is disposed on the side of the limiting portion 41 facing the limiting space 45. Its main function is to provide a flexible contact interface when the limiting portion contacts the copper foil roll, reducing scratches or other forms of mechanical damage to the copper foil surface that may be caused by hard contact. In addition, the elastic buffer layer can better adapt to the slight irregularities on the side of the copper foil roll, which helps to improve the limiting efficiency and provide a tighter and more stable lateral limiting for the copper foil roll.
[0043] In one embodiment of the present invention, an adjusting groove extending axially is provided on the first mounting section 42, and the limiting part 41 can slide along the adjusting groove and adjust the size of the limiting space 45. A locking component is also provided on the limiting part 41 or the first mounting section 42, and the locking component can lock the position of the limiting part 41.
[0044] In the above technical solution, the function of the adjusting groove is to guide and limit the axial sliding of the limiting part 41, thereby adjusting the size of the limiting space 45. This allows the limiting component to quickly adapt to copper foil rolls of different widths. Simply adjusting the position of the limiting part is sufficient to limit copper foil of various specifications, greatly expanding the application range of the equipment and improving production efficiency. The distance between two adjacent limiting parts 41 ranges from 0.5mm to 20mm. The locking component typically includes latches set on the limiting part 41 or the first mounting section, or locking end plates sleeved on the first mounting section 42 and located at both ends of the limiting part 41. By setting the locking component, when the limiting part 41 is adjusted to the correct position, it can be securely locked in the set position, preventing the limiting part 41 from changing position due to external factors such as vibration or airflow. This ensures that the precise dimensions of the limiting space are maintained throughout the winding process, guaranteeing the stability and consistency of the copper foil roll winding.
[0045] In one embodiment of the present invention, the transmission assembly further includes a reduction mechanism 122, the input end of which is connected to the output end of the drive unit 11, and the output end of the reduction mechanism 122 is connected to the input end of the transmission unit 121.
[0046] In the above technical solution, the function of the reduction mechanism 122, such as the worm gear reduction mechanism or the gear reduction mechanism, is to reduce the speed of the high-speed power output by the drive unit 11. The input end of the reduction mechanism 122 is connected to the output end of the drive unit 11, such as the servo motor, and the output end of the reduction mechanism 122 is connected to the input end of the transmission unit 121, thereby converting the high-speed rotational motion output by the servo motor into a low-speed, high-torque motion suitable for the winding process, and improving the accuracy of the limit component moving along the Y-axis.
[0047] In one embodiment of the present invention, the winding aid device further includes a dustproof sealing cover, which is disposed on the transmission part 121.
[0048] In the above technical solution, the dustproof sealing cover is a protective device installed on the transmission part 121. Its function is to form a closed environment around the transmission part to prevent dust, metal shavings, oil and other contaminants from entering the transmission part. This avoids the intrusion of contaminants, which can lead to accelerated wear of transmission components, affect transmission accuracy, or even cause failure. It ensures the long-term stable operation of the transmission part 121, such as the ball screw, and extends the maintenance cycle of the ball screw by ≥50%, significantly reducing equipment operation and maintenance costs.
[0049] In one embodiment of this utility model, the dustproof sealing cover is a telescopic accordion cover, which can extend and retract synchronously with the transmission action of the ball screw.
[0050] In the above technical solution, the bellows cover, with its unique layered structure and telescopic capability, can synchronously extend and retract in the axial direction along with the transmission action of the ball screw. During the winding process, as the diameter of the copper foil roll gradually increases, the ball screw will move accordingly in the axial direction, and the bellows cover can extend or retract accordingly, always maintaining protection for the ball screw while avoiding interference with the limiting component. This ensures that the sealing cover protects the ball screw without affecting the normal movement of the limiting component in the Y-axis direction.
[0051] In one embodiment of the present invention, the limiting part 41 is made of hard alloy and subjected to micro-arc oxidation treatment, and a transition surface 412 is provided on the outer edge of the limiting part 41 and / or at the connection between the limiting part and the first mounting section.
[0052] In the above technical solution, cemented carbide possesses extremely high hardness and wear resistance. Using cemented carbide as the base material allows it to withstand friction and compression during the winding process, reducing wear and ensuring the durability and positioning accuracy of the limiting part. Micro-arc oxidation is a surface modification technology that generates a dense oxide film on the material surface, improving not only the material's corrosion resistance, wear resistance, and insulation, but also its surface aesthetics. Micro-arc oxidation of the limiting part 41 further enhances its surface hardness and corrosion resistance, extending its service life. Furthermore, it reduces the surface roughness of the limiting part, minimizing the risk of scratches on the copper foil surface even when it is in direct contact with the metal surface of the limiting part 41, thus ensuring product quality. Compared to right-angled edges, the transition surface 412 at the edge of the limiting part 41 provides a softer contact surface, avoiding sharp stress concentrations when the copper foil contacts the outer edge of the limiting part 41 during the initial winding stage, or when the copper foil roll extends too far into the limiting space and contacts the connection between the limiting part and the first mounting section, thus preventing damage to the copper foil edge. The design of the elastic buffer layer and the arc transition surface reduces the copper foil scratch rate by ≥90%.
[0053] In one embodiment of this utility model, the support roller 3 is an expansion and contraction support roller. When the expansion and contraction support roller expands and contracts, the copper foil roll 5 moves with the change in diameter of the expansion and contraction support roller, causing the axis of the copper foil roll 5 to deviate. This results in the limiting part 41 being unable to accurately press and limit the ultra-thin and ultra-narrow copper strip along the radial direction of the copper foil roll 5, and may also cause the copper foil roll 5 to leave the pressing and limiting range of the limiting part 41. Therefore, the driving system drives the limiting component to move along the Y-axis direction, so that the limiting part 41 drives the copper foil roll 5 to keep the axis of the expansion and contraction support roller aligned and adapted, realizing the linkage between the expansion and contraction support roller and the limiting part 41. This ensures that the limiting part 41 can always keep pressing and limiting the ultra-thin and ultra-narrow copper strip along the radial direction of the copper foil roll 5, thereby ensuring that the copper foil roll is always within the precise limiting range of the limiting part 41 during the expansion and contraction process, further improving the overall winding accuracy.
[0054] See also Figures 1 to 2 As shown, the present invention also provides a winding device, including the winding aid device of the above embodiment.
[0055] In the above technical solution, by including the winding aid device with the roll diameter monitoring system 2 and the limiting component linked with the roll diameter monitoring system 2 in the above embodiment, the winding device provided by this utility model can eliminate external interference when dealing with ultra-thin and ultra-narrow copper foil with a thickness ≤6μm and a width ≤5mm, avoid the phenomenon that the initial inner ring is not easy to align and that it is easy to deviate during the winding process, and at the same time prevent the side from collapsing, thereby solving the problems of low winding accuracy and poor foil quality.
[0056] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: The drive system is the power source of the entire device. For example, the drive unit 11, such as the motor, is its core component and is responsible for providing power for the movement of the limiting unit 41 along the Y-axis. The roll diameter monitoring system 2 can monitor the change in roll diameter of the copper foil roll 5 during the slitting and winding process through sensors such as ultrasonic sensors or laser sensors, providing a basis for the drive unit 11 to adjust the following speed of the limiting unit 41, ensuring the centering accuracy of the copper foil roll 5 during the winding process, and avoiding winding deviation and uneven inner rings caused by changes in roll diameter. The support roller 3 is the carrier of the copper foil roll 5. It not only bears the weight of the copper foil roll 5, but also can expand and contract in conjunction with the separating component to ensure the tension balance of the copper foil roll 5 during the winding process, and avoid wrinkles or breakage of the copper foil during the winding process. The limiting component includes a limiting part 41, which is disposed on both sides of the copper foil roll 5. When the copper foil roll 5 is gradually formed on the support roller 3, the limiting part 41 can move along the Y-axis in accordance with the speed of the change in the diameter of the copper foil roll 5, providing positioning and guidance for both sides of the copper foil, thereby ensuring the stability of the copper foil position during the winding process, avoiding irregular shape and internal structure disorder of the copper foil roll 5 due to positional deviation, and improving the overall quality of the roll.
[0057] This invention monitors the diameter changes of the copper foil roll 5 during the winding process using a roll diameter monitoring system 2. The drive unit 11 of the drive system adjusts the moving speed of the limiting unit 41 along the Y-axis based on the monitored roll diameter. Through roll diameter detection and adaptive speed control, the limiting unit 41 keeps pace with the increase in the diameter of the copper foil roll 5, improving the following accuracy of the limiting unit 41 by ≥30%. This ensures that the limiting unit 41 can always limit the copper foil from both sides of the copper foil roll 5, thus avoiding the phenomenon of initial inner ring misalignment and easy deviation during winding when dealing with ultra-thin and ultra-narrow copper foil. It also prevents side collapse, thereby solving the problems of low winding accuracy and poor foil quality.
[0058] Obviously, the embodiments described above 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 should fall within the protection scope of this utility model.
[0059] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0060] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A roll assisting device characterized by, The device comprises a driving system, a roll diameter monitoring system (2), a supporting roller (3) and a limiting assembly, the driving system comprises a driving part (11), the supporting roller (3) is provided with a copper foil roll (5), the limiting assembly comprises a limiting part (41), the limiting part (41) is arranged on both sides of the copper foil roll (5) and can move along the Y-axis direction, the roll diameter monitoring system (2) can monitor the roll diameter of the copper foil roll (5), and the driving part (11) can adjust the movement of the limiting part (41) along the Y-axis direction according to the roll diameter.
2. The aid for winding a roll according to claim 1, characterized in that The device comprises a first mounting seat (6) and a second mounting seat (7), the driving system further comprises a transmission assembly, the transmission assembly comprises a transmission part (121), the first end of the transmission part (121) is arranged on the first mounting seat (6) and connected with the driving end of the driving part (11), and the second end of the transmission part (121) is rotationally arranged on the second mounting seat (7), the limiting assembly is in transmission connection with the transmission part (121).
3. The aid in winding device according to claim 2, characterized in that The limiting assembly comprises a first mounting section (42), the first mounting section (42) extends along the X-axis direction, the limiting part (41) is arranged on the first mounting section (42), and the first end of the first mounting section (42) is in transmission connection with the transmission part (121), so that the first mounting section (42) can be driven to move along the Y-axis direction by the transmission part (121).
4. The aid in winding device according to claim 3, characterized in that The limiting assembly further comprises a second mounting section (43) and a connecting section (44), the second mounting section (43) is arranged on the side of the first mounting section (42) away from the supporting roller (3) and parallel to the first mounting section (42), the first end of the second mounting section (43) is in transmission connection with the transmission part (121), and the connecting section (44) connects the second end of the first mounting section (42) and the second end of the second mounting section (43).
5. The aid in winding device according to claim 3, characterized in that The roll diameter monitoring system (2) comprises an ultrasonic sensor or a laser ranging sensor, the ultrasonic sensor or the laser ranging sensor is arranged on the first mounting section (42), a detection surface of the ultrasonic sensor or the laser ranging sensor faces the winding surface of the copper foil roll (5), and the ultrasonic sensor or the laser ranging sensor can monitor the thickness change of the copper foil roll (5).
6. The aid in winding device according to claim 3, characterized in that A plurality of limiting parts (41) are arranged on the first mounting section (42) at intervals along the X-axis direction, a limiting space (45) is formed between adjacent two limiting parts (41), and the copper foil roll (5) corresponds to the limiting space (45) one by one.
7. The aid in winding device according to claim 6, characterized in that An elastic buffer layer (411) is arranged on the surface of the limiting part (41) facing the limiting space (45).
8. The aid in winding device according to claim 6, characterized in that The first mounting section (42) is provided with an adjusting slot extending in the axial direction, the limiting part (41) can slide along the adjusting slot and adjust the size of the limiting space (45), the limiting part (41) or the first mounting section (42) is further provided with a locking assembly, the locking assembly can lock the position of the limiting part (41); and / or the transmission assembly further comprises a speed reduction mechanism (122), the input end of the speed reduction mechanism (122) is connected with the output end of the driving part (11), and the output end of the speed reduction mechanism (122) is connected with the input end of the transmission part (121).
9. The aid in winding device according to claim 6, characterized in that The roll assisting device further comprises a dustproof sealing cover arranged on the transmission part (121).
10. A winding device, characterized in that The roll assisting device comprises the roll assisting device according to any one of claims 1 to 9.