Unwinding and conveying device for abrasive cloth base material
By designing a motor-driven rotating shaft and a guide rail-guided clamping mechanism, the assembly and unloading of abrasive cloth substrate rolls are automated, solving the problem of cumbersome operation in existing technologies and improving production efficiency and ease of operation.
Patent Information
- Application Number
- CN202520995427.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-05
- Estimated Expiration
- 2035-05-20
AI Technical Summary
In the existing technology, manually assembling the abrasive cloth substrate roll onto the bearing seat is a cumbersome operation that affects production efficiency.
Design a device for unwinding and conveying abrasive cloth substrate. The device uses a motor to drive a rotating shaft to rotate a disc and a fixed cylinder. The movement of the roller shaft and the fixed cylinder is guided by the outer and inner guide rails to achieve automated operation of clamping and unwinding the roll. The device is combined with a telescopic cylinder and a support frame to assist in clamping and supporting.
It simplifies the assembly and disassembly process of the abrasive cloth substrate roll, improves production efficiency and ease of operation, and ensures the stability and reliability of clamping.
Smart Images
Figure CN224198840U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of conveying technology for abrasive cloth substrates, and specifically to an unwinding and conveying device for abrasive cloth substrates. Background Technology
[0002] Abrasive cloth is an abrasive tool made from chemical or recycled fibers as the base material, formed by attaching natural or artificial abrasive particles to a substrate. Because abrasive cloth not only has excellent abrasive properties but also strong toughness, it can easily polish various flat and curved surfaces. Therefore, its applications are very wide-ranging, playing an important role in wood processing, rubber treatment, plastic product polishing, artificial leather and leather polishing, stone grinding, glass fine processing, and the polishing of ordinary steel and metal surfaces. The production of abrasive cloth includes substrate pretreatment, primer coating, electrostatic abrasive application, and drying and curing. In the substrate pretreatment stage, the substrate undergoes processes such as impurity removal, stretching, and calendering to remove impurities and make the cloth smoother. Subsequently, a primer is applied evenly to the substrate using a roller coating or scraper coating process, and then, under the action of an electrostatic field, the abrasive particles are precisely and vertically attached to the substrate. Finally, it undergoes stepped temperature curing in an oven to complete the preparation of the abrasive cloth.
[0003] To facilitate the transport of abrasive cloth substrate and reduce its space occupation, the substrate is often tightly wound onto a reel. This significantly reduces the gaps between the substrates, thus minimizing their space requirements. Furthermore, during transport, simply lifting the reel is sufficient to move the substrate, greatly improving efficiency. For abrasive cloth production, the reel containing the substrate needs to be mounted on bearing seats on both sides of the machine frame to ensure continuous transport of the substrate to subsequent processing equipment such as cleaning and shaping equipment. However, manually rotating the heavy reel and mounting it onto the bearing seats is extremely laborious. To alleviate this difficulty, a telescopic cylinder is installed between the bearing seats and the machine frame. This cylinder moves the bearing seats laterally, simplifying the assembly process. Therefore, during assembly, the reel must first be aligned with the insertion hole in the bearing seat, and then the telescopic cylinder is extended to mount the reel onto the bearing seat. However, in actual operation, adjusting the roll to align with the bearing housing's insertion hole while simultaneously controlling the telescopic cylinder's extension and retraction makes the entire process cumbersome. Therefore, the unwinding and conveying of abrasive cloth substrate has shortcomings. To simplify the unwinding operation of abrasive cloth substrate and improve production efficiency, further solutions are needed. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this utility model provides an unwinding and conveying device for abrasive cloth substrates that simplifies the unwinding operation, thereby overcoming the deficiencies in existing technologies.
[0005] The technical solution adopted by this utility model is as follows: a winding and conveying device for abrasive cloth substrate, including a frame, on which a motor and two bearing seats are respectively arranged. A rotating shaft is horizontally arranged at the drive end of the motor, and the two bearing seats are rotatably mounted on both sides of the rotating shaft. A clamping mechanism is arranged between the two bearing seats. The clamping mechanism includes two supports arranged on the frame, an outer guide rail and an inner guide rail respectively arranged on the inner side of the two supports, a roller shaft arranged between the outer guide rail and the inner guide rail, a fixed cylinder rotatably arranged on the roller shaft, and a movable sleeve on the fixed cylinder. The disc is mounted on a rotating shaft; the outer guide rail includes two outer rings, and the inner guide rail includes two inner rings. The two inner rings and two outer rings are arranged sequentially on the outer side of the disc along the axial direction of the rotating shaft. The two sides of the roller shaft are in contact with the two outer rings and the two inner rings respectively. The outer rings and inner rings each include an upper ring with an arc structure, a lower ring arranged below the upper ring, and a transition ring arranged between the lower ring and the upper ring. The upper ring is located on the side of the lower ring closer to the disc, and the two ends of the transition ring are connected to the upper ring and the lower ring respectively.
[0006] Preferably, the disc has a central hole that is movably fitted onto the rotating shaft. A circular tube is provided on the side of the disc away from the support, with one end of the tube installed in the center of the disc. The tube is movably fitted onto the rotating shaft, and several threaded holes are provided on the side wall of the tube. Bolts are threaded into these threaded holes. Both the tube and the disc are clamped onto the rotating shaft by bolts. A U-shaped support frame is provided on one side of the fixed cylinder. The center line of the support frame coincides with the center line of the fixed cylinder. A connecting plate is provided between the support frame and the tube, with both ends of the connecting plate installed on the support frame and the tube, respectively.
[0007] Preferably, the fixing cylinder adopts a cylindrical structure with one side open, the opening end of the fixing cylinder facing the middle of the rotating shaft, a fixing rod is rotatably fitted inside the fixing cylinder, one side of the fixing rod extends out of the fixing cylinder, a pressure cap is fitted on one side of the fixing rod, a spring is provided inside the pressure cap, and the two sides of the spring are respectively installed on the fixing rod and the pressure cap.
[0008] Preferably, the distance between the two outer rings and the distance between the two inner rings are consistent with the diameter of the roller shaft. Baffles are provided at both ends of the roller shaft, and the middle part of the baffles is installed on the roller shaft. A through hole is provided on the side of the fixed cylinder away from the disc. The through hole is movably fitted on the roller shaft, and the diameter of the roller shaft is consistent with the diameter of the through hole.
[0009] Preferably, the disc has an insertion hole, and a fixing tube is provided on the side of the disc near the support. One end of the fixing tube is installed on the side of the disc. Both the fixing tube and the insertion hole are movably fitted onto the fixing cylinder. The outer wall diameter of the fixing cylinder matches the hole diameter of the insertion hole and the inner cavity diameter of the fixing tube.
[0010] Preferably, a telescopic cylinder is vertically installed on one side of the frame, and a storage pad is installed above the telescopic cylinder. The storage pad is located in the middle of the frame, and the top surface of the storage pad adopts an arc-shaped surface structure. Support rods are vertically installed on both sides of the storage pad, and the top of the support rods is installed on the bottom surface of the storage pad. A through hole is opened on the frame, and the through hole is movably fitted on the support rod. The diameter of the support rod matches the diameter of the through hole.
[0011] Preferably, a collection pad is provided on the side of the frame away from the telescopic cylinder. The collection pad is installed in the middle of the frame. The top surface of the collection pad adopts an arc-shaped surface structure. A pad made of elastic material is provided at the top of the collection pad, and the pad is installed on the collection pad.
[0012] The beneficial effects of this utility model are as follows: First, this utility model uses a motor to drive the rotating shaft to rotate, thereby causing the disc connected to the rotating shaft, the fixed cylinder mounted on the disc, and the roller shaft rotatably mounted on the fixed cylinder to rotate around the rotating shaft. The roller shaft is guided by the outer and inner guide rails on the bracket. As the roller shaft and fixed cylinder rotate around the axis, they move laterally along the path defined by the inner and outer guide rails. When the upper ring is located on the side of the lower ring closer to the disc, and the roller shaft is between the upper ring of the outer guide rail and the upper ring of the inner guide rail, the fixed cylinder will move to the inner side closer to the axis, thus facilitating the clamping of the abrasive cloth substrate roll. Conversely, when the roller shaft is between the lower ring of the outer guide rail and the lower ring of the inner guide rail, the fixed cylinder will move to the outer side closer to the axis, and the fixed cylinder will be in a relaxed state, thus facilitating the release of the clamping of the abrasive cloth substrate roll. This means that when assembling the abrasive cloth substrate roll, only the clamping position of the abrasive cloth substrate roll needs to be adjusted; and when it is necessary to remove the roll, it can be caught on one side of the bracket, thus reducing the burden and complexity of loading and unloading operations.
[0013] Secondly, this invention uses bolts to clamp and mount the round tube and disc onto the rotating shaft, facilitating the assembly and disassembly of the shaft, disc, and tube for maintenance. A support frame assists in supporting the abrasive cloth substrate roll and clamping and positioning the fixed cylinder and the abrasive cloth substrate roll, allowing the fixed cylinder to hold the roll. Furthermore, a rotating fixed rod inside the fixed cylinder allows the abrasive cloth substrate roll to rotate, facilitating continuous feeding. Springs and pressure caps cushion the roll, preventing damage and ensuring reliable operation.
[0014] Furthermore, this invention constrains the roller shaft using baffles to prevent it from sliding out of the inner and outer guide rails. The fixed tube restricts the fixed cylinder to lateral movement only along it, reducing sway and improving stability. Additionally, the telescopic cylinder and storage pad allow for lifting the abrasive cloth substrate roll and adjusting its position, facilitating clamping with the fixed cylinder. The support rod restricts the storage pad's movement to vertical, reducing sway and improving stability. Finally, the collection pad and plate collect any released rolls. Attached Figure Description
[0015] Figure 1 This is a first perspective view of the present invention.
[0016] Figure 2 This is a second perspective view of the present invention.
[0017] Figure 3 This is a schematic diagram of the assembly of the bracket, outer guide rail, inner guide rail, and fixing cylinder in this utility model.
[0018] Figure 4 This is a schematic diagram of the structure of the disc in this utility model.
[0019] Figure 5 This is an exploded view of the assembly of the fixing rod, spring, and pressure cap in this utility model. Detailed Implementation
[0020] like Figures 1 to 5As shown, an unwinding and conveying device for abrasive cloth substrate includes a frame 1. A motor 2 and two bearing seats 3 are respectively mounted on the frame 1. A horizontally positioned rotating shaft 4 is mounted on the drive end of the motor 2. The two bearing seats 3 are rotatably mounted on both sides of the rotating shaft 4, and a clamping mechanism is provided between the two bearing seats 3. The clamping mechanism includes two supports 5 mounted on the frame 1, an outer guide rail 6 and an inner guide rail 7 respectively mounted on the inner sides of the two supports 5, a roller 8 positioned between the outer guide rail 6 and the inner guide rail 7, a fixed cylinder 9 rotatably mounted on the roller 8, and a disc 10 movably mounted on the fixed cylinder 9. The disc 10 is mounted on the rotating shaft 4, and the outer guide rail 6 and the inner guide rail 7 are respectively mounted on... On the bracket 5; the outer guide rail 6 includes two outer rings, and the inner guide rail 7 includes two inner rings. The diameter of the inner rings is not greater than the diameter of the outer rings. The axes of the inner and outer rings coincide with the axis of the rotating shaft 4. The two inner rings and the two outer rings are arranged sequentially on the outer side of the disk 10 along the axial direction of the rotating shaft 4. The two sides of the roller shaft 8 are in contact with the two outer rings and the two inner rings respectively. The outer rings and inner rings respectively include an upper ring with an arc structure, a lower ring arranged below the upper ring, and a transition ring arranged between the lower ring and the upper ring. The upper ring is located on the side of the lower ring closer to the disk 10, and the two ends of the transition ring are connected to the upper ring and the lower ring respectively. Driven by the motor 2, the rotating shaft 4 rotates, causing the disc 10 connected to the rotating shaft 4, the fixed cylinder 9 mounted on the disc 10, and the roller 8 rotatably mounted on the fixed cylinder 9 to rotate around the rotating shaft 4. Simultaneously, the roller 8 moves along the path defined by the inner guide rail 7 and the outer guide rail 6. Therefore, during the rotation of the roller 8 and the fixed cylinder 9 around the rotating shaft 4, they move laterally along the path defined by the inner guide rail 7 and the outer guide rail 6. Specifically, when the roller 8 is located between the upper ring of the outer guide rail 6 and the upper ring of the inner guide rail 7, the fixed cylinder 9 moves accordingly to a position closer to the inner side of the rotating shaft 4, thus placing the fixed cylinder 9 in a clamping state, facilitating a secure clamping of the abrasive cloth substrate roll. Conversely, when the roller 8 is located between the lower ring of the outer guide rail 6 and the lower ring of the inner guide rail 7, the fixing cylinder 9 will move to a position closer to the outer side of the rotating shaft 4. At this time, the fixing cylinder 9 is in a relaxed state, which facilitates the release of the clamping of the abrasive cloth substrate roll for use in partitioned construction. Therefore, when assembling the abrasive cloth substrate roll, only the clamping position of the abrasive cloth substrate roll needs to be adjusted; and when it is necessary to remove the roll, the roll can be caught on one side of the bracket 5, thereby reducing the burden and complexity of loading and unloading operations.
[0021] In this embodiment, a circular hole 11 is provided in the middle of the disk 10, and the circular hole 11 is movably fitted onto the rotating shaft 4. A circular tube 12 is provided on the side of the disk away from the support 5, with one end of the circular tube 12 installed in the middle of the disk 10. The circular tube 12 is movably fitted onto the rotating shaft 4, and several threaded holes are provided on the side wall of the circular tube 12. Bolts 13 are threaded into these threaded holes respectively. The circular tube 12 and the disk 10 are both clamped and installed on the rotating shaft 4 by the bolts 13, thereby facilitating the assembly of the rotating shaft 4, the disk 10, and the circular tube 12. The components are disassembled to allow for maintenance of the rotating shaft 4, disc 10, and round tube 12. A U-shaped support frame 14 is provided on one side of the fixed cylinder 9. The center line of the support frame 14 coincides with the center line of the fixed cylinder 9. A connecting plate 15 is provided between the support frame 14 and the round tube 12. The two ends of the connecting plate 15 are respectively installed on the support frame 14 and the round tube 12. The support frame 14 is used to assist in supporting the roll of the abrasive substrate and to position the fixed cylinder 9 to hold the abrasive substrate, so that the fixed cylinder 9 can be used to hold the roll of the abrasive substrate. It should be noted that the preferred circular tube 12 has three support frames 14 and three adjacent fixed cylinders 9, all of which are evenly assembled along the circumference of the rotating shaft 4. Therefore, the fixed cylinder 9 at the top of the disc 10 can clamp the roll with the abrasive substrate wound on it, thereby continuously conveying the abrasive substrate. At the same time, the fixed cylinder 9 on one side of the bottom of the disc 10 performs the unrolling process on the roll with the abrasive substrate removed, while the fixed cylinder 9 on the other side of the bottom of the disc 10 performs the clamping process on the roll with the abrasive substrate wound on it. This design can simultaneously perform abrasive substrate conveying, unrolling, and clamping processes, thereby improving work efficiency and optimizing the continuity of abrasive substrate conveying. In addition, to prevent the rotation of the fixing cylinder 9 from affecting the roll holding the abrasive cloth substrate, a slot is provided on the inner wall of the fixing cylinder 9. A fixing block is installed in the slot and is installed on the outer wall of the fixing cylinder 9. The cross-sectional shape of the fixing block matches the cross-sectional shape of the slot, thereby limiting the rotation of the fixing cylinder 9.
[0022] Specifically, the fixing cylinder 9 adopts a cylindrical structure with one open side. The open end of the fixing cylinder 9 faces the middle of the rotating shaft 4. A fixing rod 16 is rotatably mounted inside the fixing cylinder 9. The fixing rod 16 is rotatably mounted inside the fixing cylinder 9 via a bearing. One side of the fixing rod 16 extends out of the fixing cylinder 9, and a pressure cap 17 is fitted on one side of the fixing rod 16. The inner diameter of the pressure cap 17 matches the diameter of the fixing rod 16. A spring 18 is provided inside the pressure cap 17. The two sides of the spring 18 are respectively mounted on the fixing rod 16 and the pressure cap 17, thereby clamping the roll of abrasive cloth substrate with the fixing rod 16 and the pressure cap 17. Since the fixing rod 16 can rotate relative to the fixing cylinder 9, it is convenient to rotate the roll of abrasive cloth substrate to facilitate continuous feeding of abrasive cloth substrate. The spring also cushions the pressure cap 17 to avoid damaging the roll of abrasive cloth substrate, ensuring reliable use.
[0023] Please refer to it again. Figures 1 to 3 The distance between the two outer rings and the distance between the two inner rings are consistent with the diameter of the roller shaft 8. Baffles 19 are provided at both ends of the roller shaft 8, and the middle part of the baffles 19 is installed on the roller shaft 8 to prevent the roller shaft 8 from slipping out of the outer guide rail 6 and the inner guide rail 7. A through hole 20 is provided on the side of the fixed cylinder 9 away from the disc 10. The through hole 20 is movably fitted on the roller shaft 8, and the diameter of the roller shaft 8 is consistent with the diameter of the through hole 20, so that the roller shaft 8 can rotate and be fitted inside the fixed cylinder 9.
[0024] In this embodiment, the disc 10 is provided with an insertion hole 21, and a fixing tube 22 is provided on the side of the disc 10 near the bracket 5. One end of the fixing tube 22 is installed on the side of the disc 10. The fixing tube 22 and the insertion hole 21 are both movably fitted on the fixing cylinder 9. The outer diameter of the fixing cylinder 9 matches the hole diameter of the insertion hole 21 and the inner diameter of the fixing tube 22, thereby restricting the fixing cylinder 9 to only move laterally along the fixing tube 22 and the insertion hole 21, so as to improve the stability of the fixing cylinder 9 in use.
[0025] Please participate again. Figure 1 and 2 A telescopic cylinder 23 is vertically installed on one side of the frame 1. The telescopic cylinder 23 is mounted on the frame 1. A storage pad 24 is installed above the telescopic cylinder 23. The storage pad 24 is located in the middle of the frame 1, and the support frame 14 is located outside the storage pad 24. The top surface of the storage pad 24 has an arc-shaped surface structure, which facilitates the use of the storage pad 24 to support the abrasive cloth substrate roll, thereby limiting the cylindrical abrasive cloth substrate roll and preventing it from sliding off the storage pad 24. The telescopic cylinder 23 controls the storage pad 24 and the support frame 14. The height of the abrasive cloth substrate roll placed on the pad 24 is such that the roll of abrasive cloth substrate can be clamped by the fixing cylinder 9. Support rods 25 are vertically arranged on both sides of the pad 24. The top of the support rods 25 is installed on the bottom surface of the pad 24. The frame 1 has a through hole, which is movably fitted onto the support rod 25. The diameter of the support rod 25 matches the diameter of the through hole, thereby constraining the up and down movement of the pad 24, reducing the shaking of the pad 24, and improving the stability of the up and down movement of the pad 24.
[0026] Specifically, a collection pad 26 is provided on the side of the frame 1 away from the telescopic cylinder 23. The collection pad 26 is installed in the middle of the frame 1, and the support frame 14 is located outside the collection pad 26. The top surface of the collection pad 26 adopts an arc-shaped surface structure. A pad plate 27 made of elastic material is provided at the top of the collection pad 26. The pad plate 27 is installed on the collection pad 26. The collection pad 26 is used to collect the released roller, and the pad plate 27 is used to buffer the impact between the roller and the collection pad 26 to avoid damage to the roller and the collection pad 26. In addition, a fixing hole is provided on the bracket 5, which is movably fitted on the rotating shaft 4.
[0027] The instructions for using this product are as follows: Figures 1 to 5 As shown, firstly, the telescopic cylinder 23 is shortened, so that the placement pad 24 is located in the lower middle part of the frame 1, so that the abrasive substrate roll can be placed on the placement pad 24. Next, the telescopic cylinder 23 is extended to lift the abrasive substrate roll, so that the abrasive substrate roll is located between the two supports 5, and the end of the winding spool of the abrasive substrate roll is adjusted to be on the rotation path of the support frame 14. Then, the motor 2 is operated so that the rotating shaft 4 can rotate, driving the disc 10 connected to the rotating shaft 4, the support frame 14 connected to the disc 10, the fixed cylinder 9 mounted on the disc 10, and the roller 8 rotatably mounted on the fixed cylinder 9 to rotate around the rotating shaft 4, so that the end of the winding spool of the abrasive substrate roll passes through the opening end of the support frame 14 and enters the support frame 14, thereby using the support frame 14 to drive the abrasive substrate roll to rotate together; at the same time, the roller 8 will also move along the path created by the inner guide rail 7 and the outer guide rail 6. When the roller 8 moves to the position between the upper ring of the outer guide rail 6 and the upper ring of the inner guide rail 7, the fixed cylinder 9 moves accordingly to the inner position close to the rotating shaft 4, thereby driving the pressure cap 17 to clamp the roller on which the abrasive cloth substrate roll is wound. When the fixed cylinder 9 moves to the top of the disc 10, the operation of the motor 2 is turned off, and the fixed rod 17 is rotated and assembled in the fixed cylinder 9 so as to rotate the abrasive cloth substrate roll, so that the abrasive cloth substrate wound on the abrasive cloth substrate roll is continuously conveyed to the subsequent processing equipment such as impurity removal and shaping to meet the processing needs. Then, after the abrasive cloth substrate roll is consumed, the motor 2 is started again. When the roller 8 moves between the lower ring of the outer guide rail 6 and the lower ring of the inner guide rail 7, the fixing cylinder 9 will move to the outer side near the rotating shaft 4, so as to release the clamp on the roll and let the roll fall onto the pad 27. At the same time, by placing the abrasive cloth substrate roll on the storage pad 24 again, the fixing cylinder 9 can be used to clamp the abrasive cloth substrate roll again, so as to repeat the conveying operation of the abrasive cloth substrate.
[0028] In this embodiment, the motor 2 drives the rotating shaft 4 to rotate, thereby causing the disc 10 connected to the rotating shaft 4, the fixed cylinder 9 mounted on the disc 10, and the roller shaft 8 rotatably mounted on the fixed cylinder 9 to rotate around the rotating shaft 4. The outer guide rail 6 and inner guide rail 7 on the bracket 5 guide both sides of the roller shaft 8, so that as the roller shaft 8 and the fixed cylinder 9 rotate around the rotating shaft 4, the roller shaft 8 and the fixed cylinder 9 will move laterally along the path defined by the inner guide rail 7 and the outer guide rail 6. Since the upper ring is located on the side of the lower ring closer to the disk, when the roller shaft 8 is between the upper ring of the outer guide rail 6 and the upper ring of the inner guide rail 7, the fixed cylinder 9 will move to the inner side closer to the rotating shaft 4, which facilitates the clamping of the abrasive cloth substrate roll. Conversely, when the roller shaft 8 is between the lower ring of the outer guide rail 6 and the lower ring of the inner guide rail 7, the fixed cylinder 9 will move to the outer side closer to the rotating shaft 4. At this time, the fixed cylinder 9 is in a relaxed state, which facilitates the release of the clamping of the abrasive cloth substrate roll. Therefore, when assembling the abrasive cloth substrate roll, only the clamping position of the abrasive cloth substrate roll needs to be adjusted. When it is necessary to remove the roll, the roll only needs to be caught on one side of the bracket 5, thereby reducing the burden and complexity of loading and unloading operations.
[0029] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.
Claims
1. A device for unwinding and conveying abrasive cloth substrate, comprising a frame (1), characterized in that: The frame (1) is provided with a motor (2) and two bearing seats (3). The drive end of the motor (2) is horizontally provided with a rotating shaft (4). The two bearing seats (3) are respectively rotatably mounted on both sides of the rotating shaft (4). A clamping mechanism is provided between the two bearing seats (3). The clamping mechanism includes two supports (5) on the frame (1), an outer guide rail (6) and an inner guide rail (7) respectively on the inner side of the two supports (5), a roller (8) between the outer guide rail (6) and the inner guide rail (7), a fixed cylinder (9) rotatably mounted on the roller (8), and a disc (10) movably mounted on the fixed cylinder (9). The disc (10) is mounted on the rotating shaft (4). The outer guide rail (6) includes two outer rings, and the inner guide rail (7) includes two inner rings. The two inner rings and the two outer rings are arranged sequentially on the outside of the disk (10) along the axial direction of the rotating shaft (4). The two sides of the roller shaft (8) are in contact with the two outer rings and the two inner rings respectively. The outer rings and the inner rings respectively include an upper ring with an arc structure, a lower ring arranged below the upper ring, and a transition ring arranged between the lower ring and the upper ring. The upper ring is located on the side of the lower ring close to the disk (10), and the two ends of the transition ring are connected to the upper ring and the lower ring respectively.
2. The unwinding and conveying device for abrasive cloth substrate according to claim 1, characterized in that: The disc (10) has a circular hole (11) in the middle, which is movably fitted on the rotating shaft (4). A circular tube (12) is provided on the side of the disc away from the bracket (5). One end of the circular tube (12) is installed in the middle of the disc (10). The circular tube (12) is movably fitted on the rotating shaft (4). Several threaded holes are opened on the side wall of the circular tube (12). Bolts (13) are threaded into the several threaded holes respectively. The circular tube (12) and the disc (10) are both clamped and installed on the rotating shaft (4) by bolts (13). A support frame (14) with a U-shape structure is provided on one side of the fixed cylinder (9). The center line of the support frame (14) coincides with the center line of the fixed cylinder (9). A connecting plate (15) is provided between the support frame (14) and the circular tube (12). The two ends of the connecting plate (15) are respectively installed on the support frame (14) and the circular tube (12).
3. The unwinding and conveying device for abrasive cloth substrate according to claim 1, characterized in that: The fixing cylinder (9) adopts a cylindrical structure with one side open. The opening end of the fixing cylinder (9) faces the middle of the rotating shaft (4). A fixing rod (16) is rotatably fitted inside the fixing cylinder (9). One side of the fixing rod (16) passes out from inside the fixing cylinder (9). A pressure cap (17) is fitted on one side of the fixing rod (16). A spring (18) is provided inside the pressure cap (17). The two sides of the spring (18) are respectively installed on the fixing rod (16) and the pressure cap (17).
4. The unwinding and conveying device for abrasive cloth substrate according to claim 1, characterized in that: The distance between the two outer rings and the distance between the two inner rings are consistent with the diameter of the roller shaft (8). Baffles (19) are provided at both ends of the roller shaft (8). The middle part of the baffles (19) is installed on the roller shaft (8). A through hole (20) is provided on the side of the fixed cylinder (9) away from the disc (10). The through hole (20) is movably fitted on the roller shaft (8). The diameter of the roller shaft (8) is consistent with the diameter of the through hole (20).
5. The unwinding and conveying device for abrasive cloth substrate according to claim 1, characterized in that: The disc (10) is provided with an insertion hole (21). A fixing tube (22) is provided on the side of the disc (10) near the bracket (5). One end of the fixing tube (22) is installed on the side of the disc (10). The fixing tube (22) and the insertion hole (21) are movably fitted on the fixing cylinder (9). The outer diameter of the fixing cylinder (9) matches the hole diameter of the insertion hole (21) and the inner diameter of the fixing tube (22).
6. The unwinding and conveying device for abrasive cloth substrate according to claim 1, characterized in that: A telescopic cylinder (23) is vertically installed on one side of the frame (1). The telescopic cylinder (23) is installed on the frame (1). A storage pad (24) is installed above the telescopic cylinder (23). The storage pad (24) is located in the middle of the frame (1). The top surface of the storage pad (24) adopts an arc-shaped surface structure. Support rods (25) are vertically installed on both sides of the storage pad (24). The top of the support rods (25) is installed on the bottom surface of the storage pad (24). A through hole is opened on the frame (1). The through hole is movably fitted on the support rod (25). The diameter of the support rod (25) matches the diameter of the through hole.
7. The unwinding and conveying device for abrasive cloth substrate according to claim 6, characterized in that: A collection pad (26) is provided on the side of the frame (1) away from the telescopic cylinder (23). The collection pad (26) is installed in the middle of the frame (1). The top surface of the collection pad (26) adopts an arc-shaped surface structure. A pad plate (27) made of elastic material is provided at the top of the collection pad (26). The pad plate (27) is installed on the collection pad (26).