Tab material roll device
Patent Information
- Application Number
- CN202521630127.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-31
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-07-31
AI Technical Summary
[0003]本实用新型的目的在于提供一种极耳卷料装置，旨在解决现有技术中的极耳卷料装置更换步骤繁杂影响效率的技术问题
本实用新型中的极耳卷料装置由机架、第一极片放卷机构、第二极片放卷机构、上隔膜放卷机构、下隔膜放卷机构、胶带放卷机构、卷绕机构、输出装置和多个快拆板组装而成，其中快拆板一端的侧边的两端与机架侧面之间转动连接，而快拆板的另一端的侧边的两端能够与机架侧面之间快拆卡扣连接，卷绕机构安装于机架上，且卷绕机构的收卷端穿过机架侧壁朝另一侧延伸设置，各个快拆板围绕卷绕机构的收卷端根据需要进行位置排布，第一极片放卷机构、第二极片放卷机构、上隔膜放卷机构、下隔膜放卷机构和胶带放卷机构分别安装于各个快拆板的侧面，分布于卷绕机构的收卷端的四周，第一极片放卷机构、第二极片放卷机构、上隔膜放卷机构、下隔膜放卷机构、胶带放卷机构上的隔膜、极片和胶带汇集至卷绕机构的收卷端上贴合组装，当出现部件损坏时，拆下对应的快拆板直接整体更换对应功能区域，快速便捷，不影响设备的运行，有效提高生产效率。
Smart Images
Figure CN224789656U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of battery cell manufacturing equipment, and in particular relates to a tab winding device. Background Technology
[0002] The tab winding device is a key piece of equipment in the mid-stage assembly process of lithium battery cell manufacturing. Its core function is to automatically process strip tab material (metal foil strip pre-coated with insulating adhesive) to provide a stable and precise material source for subsequent tab welding processes. In existing technology, this device mainly consists of an unwinding mechanism, a traction / feeding mechanism, a precision slitting mechanism, a tension detection and control system, a guiding and correction device, a winding mechanism, and a frame and control system. Its workflow begins with the unwinding mechanism releasing the raw material strip under precise tension control, which is then stably conveyed by the traction mechanism. The crucial slitting mechanism uses high-precision circular or flat blades to cut the wide strip into the required number and width of narrow strips. Throughout the process, the tension control system ensures constant and stable strip tension through sensors and adjustment mechanisms (such as magnetic powder brakes / clutches, servo motors), while the correction device maintains the strip's trajectory accurately centered. Finally, the winding mechanism neatly and tightly winds the slit narrow strips or individual strips into coils. The core technical requirements of this device lie in high-precision tension control, precision slitting technology, reliable deviation correction capability, and stable winding quality. Its performance directly affects the dimensional accuracy and edge quality of the tabs, which in turn affects subsequent welding yield, battery sealing reliability, and conductivity. As the foundation for ensuring a continuous and stable supply of tab materials, improving production efficiency, and ensuring product consistency, the tab winding device is an indispensable key support equipment for automated lithium battery production lines. However, existing tab winding devices suffer from complex replacement procedures, impacting production efficiency. Utility Model Content
[0003] The purpose of this invention is to provide a tab winding device, which aims to solve the technical problem that the replacement steps of the tab winding device in the prior art are complicated and affect efficiency.
[0004] To achieve the above objectives, this utility model provides an electrode unwinding device, comprising a frame, a first electrode unwinding mechanism, a second electrode unwinding mechanism, an upper diaphragm unwinding mechanism, a lower diaphragm unwinding mechanism, a tape unwinding mechanism, a winding mechanism, an output device, and multiple quick-release plates. Each quick-release plate has two ends on one side rotatably connected to the side of the frame, and each quick-release plate has two ends on the other side edge provided with an extension rod, which is connected to the side of the frame via a quick-release buckle. The first electrode unwinding mechanism, the second electrode unwinding mechanism, the upper diaphragm unwinding mechanism, the lower diaphragm unwinding mechanism, and... The tape unwinding mechanism is respectively disposed on each of the quick-release plates, the winding mechanism is movably installed in the frame, and the winding end of the winding mechanism passes through the side wall of the frame and is located on the same side as the first electrode unwinding mechanism, the second electrode unwinding mechanism, the upper diaphragm unwinding mechanism, the lower diaphragm unwinding mechanism and the tape unwinding mechanism. The first electrode unwinding mechanism, the second electrode unwinding mechanism, the upper diaphragm unwinding mechanism, the lower diaphragm unwinding mechanism and the tape unwinding mechanism are arranged around the winding mechanism, and the feed end of the output device faces the winding mechanism.
[0005] Preferably, each of the quick-release plates has a plurality of quick-release components at both ends of one side. Each quick-release component is arranged in pairs at both ends of one side of the first electrode unwinding mechanism, the second electrode unwinding mechanism, the upper diaphragm unwinding mechanism, the lower diaphragm unwinding mechanism, and the tape unwinding mechanism, and each extension rod is respectively engaged in each quick-release component.
[0006] Preferably, the quick-release assembly includes a fixing member and a buckle member that can be formed into a circle. The fixing member is fixedly installed on the side of the frame. One end of the buckle member is rotatably connected to one end of the fixing member, and the other end of the buckle member can be rotatably engaged with the other end of the fixing member. After being formed into a circle, the buckle member and the fixing member are sleeved and engaged on the extension rod.
[0007] Preferably, the end of the fastener is provided with a lever plate and a fastening ring. One end of the lever plate is rotatably connected to the end of the fastener, and the fastening ring is rotatably disposed on the lever plate near the rotatable connection end of the lever plate. When the lever plate is in close contact with the outer side of the fastener, the fastening ring is sleeved and engaged with one end of the fixing member.
[0008] Preferably, the outer side of the fastener is provided with a buckle protrusion, and the buckle ring can engage with the buckle protrusion.
[0009] Preferably, the winding mechanism includes a support frame assembly, a winding shaft, a winding motor, and a carrier plate. The carrier plate is slidably disposed on the frame, the winding motor is fixedly mounted on the carrier plate, one end of the winding shaft is fixedly connected to the rotating end of the winding motor, and the other end of the winding shaft extends outward through the side of the frame. The other end of the winding shaft is located between the first electrode unwinding mechanism, the second electrode unwinding mechanism, the upper diaphragm unwinding mechanism, the lower diaphragm unwinding mechanism, and the tape unwinding mechanism. The support frame assembly is fixedly mounted on the side of the frame, and one end of the winding shaft is rotatably connected to the support frame assembly.
[0010] Preferably, a limiting member is provided on the carrier plate, and the limiting member is provided through the bottom of the carrier plate and the frame.
[0011] Preferably, the winding shaft includes a central shaft, a first mounting plate, a second mounting plate, and three rotating shafts. One end of the central shaft is fixedly connected to the rotating end of the winding motor. The first and second mounting plates are both mounted on the central shaft and are respectively positioned close to both ends of the central shaft. Each rotating shaft is spaced around the central shaft, and both ends of each rotating shaft are rotatably connected to the first and second mounting plates, respectively. One end of the central shaft and each rotating shaft extends outward through the first mounting plate. One end of the central shaft is rotatably connected to the support frame assembly. Each rotating shaft can be rotatably connected to the rotating end of the positioning cylinder on the support frame assembly. One end of the central shaft is drive-connected to the winding motor. The central shaft is fitted with two sleeves, and the lengths of the two sleeves and the central shaft gradually decrease from the inside to the outside. Each rotating shaft is drive-connected to one end of the central shaft and the two sleeves, and the other ends of the central shaft and the two sleeves are drive-connected to each auxiliary motor on the carrier plate.
[0012] Preferably, the side of the frame is provided with a plurality of steering shafts, and the first electrode unwinding mechanism, the second electrode unwinding mechanism, the upper diaphragm unwinding mechanism, the lower diaphragm unwinding mechanism and the tape unwinding mechanism are each provided with a plurality of steering shafts between each other.
[0013] Preferably, a feeding mechanism is also provided on the side of the frame, the feeding mechanism is located above the output device, and the moving end of the feeding mechanism extends toward the winding mechanism.
[0014] The above-mentioned technical solutions in the tab winding device provided in this embodiment of the utility model have at least one of the following technical effects: The electrode winding device of this utility model is assembled from a frame, a first electrode unwinding mechanism, a second electrode unwinding mechanism, an upper diaphragm unwinding mechanism, a lower diaphragm unwinding mechanism, a tape unwinding mechanism, a winding mechanism, an output device, and multiple quick-release plates. One end of each quick-release plate has two rotatable connections to the side of the frame, while the other end has two quick-release latches that connect to the side of the frame. The winding mechanism is mounted on the frame, and its take-up end extends through the side wall of the frame to the other side. Each quick-release plate is positioned around the take-up end of the winding mechanism as needed. The arrangement includes the first electrode unwinding mechanism, the second electrode unwinding mechanism, the upper diaphragm unwinding mechanism, the lower diaphragm unwinding mechanism, and the tape unwinding mechanism, all mounted on the sides of the quick-release plates and distributed around the winding end of the winding mechanism. The diaphragms, electrodes, and tapes on these mechanisms converge and are assembled at the winding end of the winding mechanism. When a component is damaged, the corresponding quick-release plate can be removed to directly replace the entire functional area, which is quick, convenient, and does not affect the operation of the equipment, effectively improving production efficiency. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 A side view of the tab winding device provided in an embodiment of this utility model.
[0017] Figure 2 for Figure 1 A magnified view of part A in the image.
[0018] Figure 3 A rendering of the quick-release assembly of the tab winding device provided in this embodiment of the utility model.
[0019] Figure 4 A rendering of the winding mechanism of the tab winding device provided in this embodiment of the utility model.
[0020] Figure 5 A cross-sectional view of the central axis of the winding mechanism of the tab winding device provided in an embodiment of this utility model.
[0021] The following are the labeling elements in the figure: 10—Frame; 11—Steering shaft; 12—Unloading mechanism 13—Diaphragm cutting mechanism; 20—First electrode unwinding mechanism; 30—Second electrode unwinding mechanism 40—Upper diaphragm unwinding mechanism; 50—Lower diaphragm unwinding mechanism; 60—Tape unwinding mechanism 70—Winding mechanism; 71—Support frame assembly; 72—Winding shaft 73—Winding motor; 74—Carrier plate; 80—Output device 90—Quick-release plate; 91—Extension rod; 92—Quick-release assembly 721—Central Axis; 722—First Mounting Plate; 723—Second Mounting Plate 724—Shaft; 921—Fixed component; 922—Snap-fit component 9211—Snap-on protrusion; 9221—Pulley; 9222—Snap-on ring. Detailed Implementation
[0022] The embodiments of this utility model are described in detail below, with examples of the embodiments shown in the appendix. Figures 1-5 As shown, the same or similar reference numerals throughout denote the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain embodiments of the present invention, and should not be construed as limiting the present invention.
[0023] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0025] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0026] In one embodiment of this utility model, such as Figures 1-4 As shown, an electrode unwinding device is provided, which is assembled from a frame 10, a first electrode unwinding mechanism 20, a second electrode unwinding mechanism 30, an upper diaphragm unwinding mechanism 40, a lower diaphragm unwinding mechanism 50, a tape unwinding mechanism 60, a winding mechanism 70, an output device 80, a feeding mechanism 12, and multiple quick-release plates 90. The two ends of one side of each quick-release plate 90 are rotatably connected to the side of the frame 10, while the two ends of the other side of each quick-release plate 90 can be connected to the side of the frame 10. The quick-release buckle connection is used, and extension rods 91 are provided on both sides of the other end of the quick-release plate. The two extension rods 91 are respectively connected to the quick-release buckles on the side of the frame 10. The winding mechanism 70 is installed on the frame 10, and the winding end of the winding mechanism 70 extends through the side wall of the frame 10 to the other side. The quick-release plates 90 are arranged in positions around the winding end of the winding mechanism 70 as needed. The first electrode unwinding mechanism 20, the second electrode unwinding mechanism 30, and the upper diaphragm unwinding mechanism 40 are also included. The lower diaphragm unwinding mechanism 50 and the tape unwinding mechanism 60 are respectively installed on the sides of each quick-release plate 90. The feeding mechanism 12 is fixedly installed on the side of the frame 10 and is distributed around the winding end of the winding mechanism 70. An output device 80 is provided on the side of the frame 10 below the feeding mechanism 12. The diaphragms, electrodes and tapes on the first electrode unwinding mechanism 20, the second electrode unwinding mechanism 30, the upper diaphragm unwinding mechanism 40, the lower diaphragm unwinding mechanism 50 and the tape unwinding mechanism 60 are gathered and assembled on the winding end of the winding mechanism 70. A diaphragm cutting mechanism 13 is provided on the side of the frame 10 for cutting the upper and lower diaphragms. The diaphragm cutting mechanism 13 is adjacent to the winding end of the winding mechanism 70. When the accessories in the corresponding module area are faulty and need to be repaired or replaced, the quick-release plate 90 can be directly disassembled to replace the entire module. This is quick and convenient, without requiring the equipment to be stopped for a long time, effectively improving maintenance efficiency and indirectly improving production efficiency.
[0027] like Figure 1As shown, the first electrode unwinding mechanism 20, the second electrode unwinding mechanism 30, the upper diaphragm unwinding mechanism 40, the lower diaphragm unwinding mechanism 50, the tape unwinding mechanism 60, the diaphragm cutting mechanism 13, and the unloading mechanism 12 are all common structures of existing electrode lug winding devices. The first electrode unwinding mechanism 20, the second electrode unwinding mechanism 30, the upper diaphragm unwinding mechanism 40, the lower diaphragm unwinding mechanism 50, and the tape unwinding mechanism 60 unwind the material shaft by a motor drive. The diaphragm cutting mechanism 13 uses a cutter to cut the diaphragm. The unloading mechanism 12 uses a gripper to grab the wound finished product and place it on the output device 80.
[0028] like Figures 1-3 As shown, quick-release plates 90 are provided with quick-release components 92 at both ends of one side. Each quick-release component 92 is provided in pairs at both ends of one side of the first electrode unwinding mechanism 20, the second electrode unwinding mechanism 30, the upper diaphragm unwinding mechanism 40, the lower diaphragm unwinding mechanism 50, and the tape unwinding mechanism 60. Each extension rod 91 is respectively engaged in each quick-release component 92. The assembly of each quick-release plate 90 is achieved by locking each extension rod 91 with the quick-release component 92.
[0029] like Figures 1-3 As shown, the quick-release assembly 92 includes a fixing member 921 and a latching member 922. The fixing member 921 and the latching member 922 can be arranged into a circle. The fixing member 921 is fixedly installed on the side of the frame 10. One end of the latching member 922 is rotatably connected to one end of the fixing member 921. The extension rod 91 is placed between the latching member 922 and the fixing member 921. When the latching member 922 is rotated, the other end of the latching member 922 engages with the other end of the fixing member 921, thus fixing the extension rod 91.
[0030] like Figures 1-3 As shown, the end of the fastener 922 that engages with the fixing member 921 is provided with a lever plate 9221 and a fastening ring 9222. One end of the lever plate 9221 is rotatably mounted on the end side of the fastener 922, and the fastening ring 9222 is rotatably mounted on the lever plate 9221. The rotational connection point between the fastening ring 9222 and the lever plate 9221 is close to the connection end between the lever plate 9221 and the fastener 922. When the lever plate 9221 rotates due to the fastening engagement, it drives the fastening ring 9222 to rotate. 22 moves toward the fixing member 921. After the buckle ring 9222 is sleeved on the end of the fixing member 921, the lever 9221 rotates in the opposite direction, pulls back the buckle ring 9222, and locks the connection between the buckle ring 9222 and the fixing member 921, thereby ensuring the end connection between the fixing member 921 and the buckle member 922, locking the extension rod 91. The end of the fixing member 921 is provided with a buckle protrusion 9211, and the buckle ring 9222 is sleeved on the buckle protrusion 9211.
[0031] like Figure 1 and Figure 4As shown, the winding mechanism 70 is assembled from a support frame assembly 71, a winding shaft 72, a winding motor 73, and a carrier plate 74. The carrier plate 74 is slidably mounted on the frame 10, and a limiting member is provided on the carrier plate 74. The limiting member passes through the carrier plate 74 and the frame 10 to fix the position of the carrier plate 74 on the frame 10. The winding motor 73 is fixedly mounted on the carrier plate 74. One end of the winding shaft 72 is fixedly connected to the rotating end of the winding motor 73, and the other end of the winding shaft 72 extends outward through the side of the frame 10, located between the first electrode unwinding mechanism 20, the second electrode unwinding mechanism 30, the upper diaphragm unwinding mechanism 40, the lower diaphragm unwinding mechanism 50, and the tape unwinding mechanism 60, cutting and separating... The membrane mechanism 13 is arranged adjacent to the winding shaft 72, and several steering shafts 11 are provided between the first electrode unwinding mechanism 20, the second electrode unwinding mechanism 30, the upper diaphragm unwinding mechanism 40, the lower diaphragm unwinding mechanism 50, and the tape unwinding mechanism 60 and the diaphragm cutting mechanism 13. The position of the steering shafts 11 is set according to the processing requirements to ensure that the final material is collected and output on the diaphragm cutting mechanism 13. The support frame assembly 71 is fixedly installed on the side of the frame 10, and a positioning cylinder is provided on the support frame assembly 71. The rotating end of the positioning cylinder abuts against the end of a rotating shaft 724 on the winding shaft 72. When the winding motor 73 drives the rotating shaft 724 to rotate, the winding shaft 72 will not rotate.
[0032] like Figures 4-5 As shown, the winding shaft 72 is assembled from a central shaft 721, a first mounting plate 722, a second mounting plate 723, and three rotating shafts 724. One end of the central shaft 721 is fixedly connected to the rotating end of the winding motor 73, and the other end extends between the first electrode unwinding mechanism 20, the second electrode unwinding mechanism 30, the upper diaphragm unwinding mechanism 40, the lower diaphragm unwinding mechanism 50, and the tape unwinding mechanism 60. The first mounting plate 722 and the second mounting plate 723 are respectively fitted onto the central shaft 721 near both ends. Both ends of the three rotating shafts 724 are respectively connected to the first mounting plate 721, the first mounting plate 722, the second mounting plate 723, and the three rotating shafts 724. The first mounting plate 722 is rotatably connected to the second mounting plate 723. The first mounting plate 722 is located near the rotating end of the positioning cylinder. When the first mounting plate 722 rotates a certain angle, the rotating end of the positioning cylinder extends out and abuts against the end of the rotating shaft 724 that has moved into place, thereby positioning the rotating shaft 724. At this time, the rotating shaft 724 is adjacent to the diaphragm cutting mechanism 13 and is wound. Another rotating shaft 724 rotates to the tape unwinding mechanism 60 to load the tape. The third rotating shaft 724 rotates to be adjacent to the unloading mechanism 12. The unloading mechanism 12 grabs the wound tabs and places them on the output device 80 for output. Each auxiliary motor in the winding motor 73 is connected to the three rotating shafts 724 for transmission.
[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A tab winding device, characterized in that: The system includes a frame, a first electrode unwinding mechanism, a second electrode unwinding mechanism, an upper diaphragm unwinding mechanism, a lower diaphragm unwinding mechanism, a tape unwinding mechanism, a winding mechanism, an output device, and multiple quick-release plates. Each quick-release plate has two ends on one side rotatably connected to the side of the frame, and each quick-release plate has two ends on the other side edge with extension rods that are connected to quick-release latches on the side of the frame. The first electrode unwinding mechanism, the second electrode unwinding mechanism, the upper diaphragm unwinding mechanism, the lower diaphragm unwinding mechanism, and the tape unwinding mechanism are respectively located in each... On the quick-release plate, the winding mechanism is movably mounted in the frame, and the take-up end of the winding mechanism passes through the side wall of the frame and is located on the same side as the first electrode unwinding mechanism, the second electrode unwinding mechanism, the upper diaphragm unwinding mechanism, the lower diaphragm unwinding mechanism, and the tape unwinding mechanism. The first electrode unwinding mechanism, the second electrode unwinding mechanism, the upper diaphragm unwinding mechanism, the lower diaphragm unwinding mechanism, and the tape unwinding mechanism are arranged around the winding mechanism, and the feed end of the output device faces the winding mechanism.
2. The electrode lug winding device according to claim 1, characterized in that: The quick-release plate has several quick-release components at both ends of one side. Each quick-release component is arranged in pairs at both ends of one side of the first electrode unwinding mechanism, the second electrode unwinding mechanism, the upper diaphragm unwinding mechanism, the lower diaphragm unwinding mechanism, and the tape unwinding mechanism, and each extension rod is respectively engaged in each quick-release component.
3. The electrode lug winding device according to claim 2, characterized in that... The quick-release assembly includes a fixing member and a buckle member that can be formed into a circle. The fixing member is fixedly installed on the side of the frame. One end of the buckle member is rotatably connected to one end of the fixing member, and the other end of the buckle member can be rotatably engaged with the other end of the fixing member. After being formed into a circle, the buckle member and the fixing member are sleeved and engaged on the extension rod.
4. The electrode lug winding device according to claim 3, characterized in that: The end of the fastener is provided with a lever plate and a fastening ring. One end of the lever plate is rotatably connected to the end of the fastener. The fastening ring is rotatably disposed on the lever plate near the rotatable connection end of the lever plate. When the lever plate is in close contact with the outer side of the fastener, the fastening ring is sleeved and engaged with one end of the fixing member.
5. The electrode lug winding device according to claim 4, characterized in that: The outer side of the fastener is provided with a buckle protrusion, and the buckle ring can engage with the buckle protrusion.
6. The electrode lug winding device according to claim 1, characterized in that: The winding mechanism includes a support frame assembly, a winding shaft, a winding motor, and a carrier plate. The carrier plate is slidably disposed on the frame, and the winding motor is fixedly mounted on the carrier plate. One end of the winding shaft is fixedly connected to the rotating end of the winding motor, and the other end of the winding shaft extends outward through the side of the frame. The other end of the winding shaft is located between the first electrode unwinding mechanism, the second electrode unwinding mechanism, the upper diaphragm unwinding mechanism, the lower diaphragm unwinding mechanism, and the tape unwinding mechanism. The support frame assembly is fixedly mounted on the side of the frame, and one end of the winding shaft is rotatably connected to the support frame assembly.
7. The tab winding device according to claim 6, characterized in that: The carrier plate is provided with a limiting member, which extends through the bottom of the carrier plate and the frame.
8. The tab winding device according to claim 6, characterized in that: The winding shaft includes a central shaft, a first mounting plate, a second mounting plate, and three rotating shafts. One end of the central shaft is fixedly connected to the rotating end of the winding motor. The first and second mounting plates are both mounted on the central shaft and are respectively positioned close to both ends of the central shaft. Each rotating shaft is spaced around the central shaft, and both ends of each rotating shaft are rotatably connected to the first and second mounting plates, respectively. One end of the central shaft and each rotating shaft extends outward through the first mounting plate. One end of the central shaft is rotatably connected to the support frame assembly. Each rotating shaft can rotate to the rotating end of the positioning cylinder on the support frame assembly. One end of the central shaft is drive-connected to the winding motor. The central shaft is fitted with two sleeves, and the lengths of the two sleeves and the central shaft gradually decrease from the inside to the outside. Each rotating shaft is drive-connected to one end of the central shaft and the two sleeves, and the other ends of the central shaft and the two sleeves are drive-connected to each auxiliary motor on the carrier plate.