Abrasive paper fixing mechanism for abrasive paper polishing equipment
By combining components such as threaded columns, retaining rings, and limiting slots, the stability problem of the sandpaper fixing mechanism during sanding is solved, achieving uniform force distribution and efficient fixing of the sandpaper, extending the service life of the sandpaper and reducing the replacement frequency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HONGCHENG ABRASIVE MATERIALS TECHNOLOGY CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional sandpaper fixing mechanisms cannot effectively resist centrifugal force and friction during sanding, causing the sandpaper edges to curl, tear, or fall off, affecting sanding accuracy and lifespan.
The design incorporates a combination of components such as threaded posts, retaining rings, extrusion plates, and limiting slots. Through multi-point fixing and limiting structures, it ensures stable tension at the edges and center of the sandpaper, resisting lateral forces and vibrations during sanding.
It improves the fixing strength and stability of sandpaper, reduces sandpaper vibration and displacement, extends the service life of sandpaper, and reduces replacement frequency and production costs.
Smart Images
Figure CN224209744U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sandpaper fixing technology, and more specifically, to a sandpaper fixing mechanism for sandpaper grinding equipment. Background Technology
[0002] Sandpaper polishing equipment is a commonly used polishing tool, mainly used for grinding, polishing, and removing burrs and imperfections from surfaces. This equipment can be roughly divided into three types: hand grinders, electric grinders, and air grinders. Electric grinders and air grinders are currently the two most commonly used polishing methods in industrial production. Electric grinders are usually the main polishing tool. They can drive the grinding head to rotate at high speed through electricity, thereby achieving a rapid polishing effect. The sandpaper used in sandpaper polishing equipment is fixed by a fixing mechanism. The way the sandpaper is fixed has a crucial impact on the polishing effect, work efficiency, and production cost.
[0003] Traditional fixing mechanisms often rely solely on edge clamping (such as single bolt clamps or adhesive), which cannot effectively resist centrifugal force and friction during sanding. When the sanding equipment rotates at high speed, the sandpaper edge is prone to warping, tearing, or even the entire sandpaper falling off due to stress concentration, resulting in reduced sanding accuracy or equipment failure. Furthermore, it can easily cause the sandpaper to fail to tighten in the sanding area, accelerating local wear and shortening the overall lifespan of the sandpaper. Therefore, a sandpaper fixing mechanism for sanding equipment is proposed. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a sandpaper fixing mechanism for sandpaper grinding equipment to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a sandpaper fixing mechanism for a sandpaper polishing device, comprising a support plate, a threaded post fixedly connected to the top center of the support plate, a connecting rod fixedly connected to the top of the threaded post, a fixing ring fixedly connected to the top edge of the threaded post, and multiple fixing studs fixedly connected around the top of the threaded post. A first extrusion plate and an extrusion nut are sleeved in the middle of the fixing studs. By inserting the edge of the sandpaper between the first extrusion plate and the support plate, and by rotating the extrusion nut to extrude the first extrusion plate, the edge of the sandpaper can be fixed. The clamping and fixing strength is improved by the cooperation of the fixing ring and the arc-shaped groove, and loosening is prevented.
[0006] The bottom of the first extrusion plate is provided with an arc-shaped groove, a limit strip is fixedly connected to the through hole in the middle of the first extrusion plate, a limit groove is provided on one side of the fixing stud, and a sandpaper body is provided at the bottom of the support plate. Through the cooperation of the limit strip and the limit groove, the stability of the first extrusion plate moving up and down can be improved.
[0007] The support plate has a groove at its bottom, and a push plate is located in the middle of the groove. Multiple fixing posts are fixedly connected to the top of the push plate. The top of each fixing post passes through the support plate and is fixedly connected to a limiting ring. A rotating ring is fitted into the middle of each threaded post. A pressing bolt is inserted into one side of the top of the rotating ring. A second pressing plate is rotatably connected to the bottom of the pressing bolt. Rotating the rotating ring controls the limiting ring to move the fixing posts downwards, allowing the push plate to support the middle of the bottom sandpaper body. This tightens the sandpaper body, improving its performance. Rotating the pressing bolt controls a timer to press the limiting ring, fixing the positions of the rotating ring and the limiting ring, thus fixing the position of the push plate. This effectively improves the flatness and stability of the sandpaper, reduces vibration and displacement during sanding, and improves sanding quality.
[0008] Preferably, the cross-sectional shape of the fixing ring is set to a semi-circular structure, the arc-shaped groove corresponds to the fixing ring, and the first extrusion plate is set to a fan-shaped structure. The clamping and fixing strength is improved by the cooperation of the fixing ring and the arc-shaped groove, and loosening is avoided.
[0009] Preferably, the limiting strip corresponds to the limiting slot, the limiting strip is located in the middle of the limiting slot, the extrusion nut is threadedly connected to the fixing stud, and the extrusion nut is located on the top of the first extrusion plate. Through the cooperation of the limiting strip and the limiting slot, the stability of the first extrusion plate moving up and down is improved, and the clamping and fixing effect is improved.
[0010] Preferably, the push plate is adapted to the groove, the fixed post corresponds to the rotating ring, the top of the limiting ring is embedded in the middle of the rotating ring, and the cross-sectional shape of the limiting ring is set to "L". When the rotating ring moves up and down through the limiting ring, the push plate can be controlled to move up and down through the fixed post, which is convenient for tightening.
[0011] Preferably, the second extrusion plate corresponds to the top wall of the limiting ring. The top of the limiting ring is provided with a toothed groove, and the bottom of the second extrusion plate is provided with teeth. The teeth and the toothed groove are adapted to each other. The rotating ring is threadedly connected to the threaded column. By extruding the limiting ring with the second extrusion plate, the positions of the rotating ring and the limiting ring can be fixed, thereby fixing the position of the push plate, preventing loosening, and improving the use effect.
[0012] Preferably, the four sides of the sandpaper body are folded to the top of the support plate through the side of the support plate and cover the fixing ring. The first extrusion plate is set on the top of the sandpaper body at the top of the fixing ring, which facilitates the installation and fixing of the sandpaper body, improves the fixing strength, and facilitates disassembly and replacement, thereby improving the sanding quality.
[0013] The technical effects and advantages of this utility model are as follows:
[0014] 1. This utility model first controls the first extrusion plate to press and fix the edge of the arc-shaped groove located at the top of the support plate by rotating the extrusion nut, and controls the limiting ring to drive the push plate through the fixed column to press the middle of the bottom sandpaper body by rotating the rotating ring. This makes the sandpaper body taut and the force on the sandpaper body more even when sanding, reduces premature wear or tearing of the sandpaper edge due to improper fixing, extends the service life of the sandpaper, reduces the frequency of sandpaper replacement, and saves production costs.
[0015] 2. This utility model also improves the clamping and fixing strength through the cooperation of the arc-shaped groove and the fixing ring, effectively resists the lateral force and vibration generated during grinding, and prevents the sandpaper from shifting or falling off. By rotating the pressing bolt to control the second pressing plate to press the limiting ring, the position of the rotating ring can be fixed, avoiding the loosening of the rotating ring due to the high speed rotation of the support plate, improving the fixing strength of the push plate, and the setting of the limiting ring can control the up and down movement of the rotating ring, making it convenient for driving use.
[0016] In summary, through the interaction of the above-mentioned multiple functions, it can effectively resist the lateral forces and vibrations generated during sanding, prevent the sandpaper from shifting or falling off, improve the fixing strength, and make the sandpaper body more evenly stressed during sanding. It also reduces premature wear or tearing of the sandpaper edges due to improper fixing, extends the service life of the sandpaper, reduces the frequency of sandpaper replacement, and saves production costs. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model.
[0019] Figure 3 This is a schematic diagram of the disassembled structure of this utility model.
[0020] Figure 4 This utility model Figure 1 A magnified schematic diagram of the structure at point A in the middle.
[0021] Figure 5 This is a schematic diagram of the split cross-sectional structure of this utility model.
[0022] The attached diagram is labeled as follows: 1. Support plate; 2. Threaded post; 3. Connecting rod; 4. Fixing ring; 5. Fixing stud; 6. First extrusion plate; 7. Extrusion nut; 8. Limiting strip; 9. Limiting slot; 10. Arc-shaped slot; 11. Groove; 12. Push plate; 13. Fixing post; 14. Limiting ring; 15. Rotating ring; 16. Extrusion bolt; 17. Second extrusion plate; 18. Sandpaper body. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] As attached Figure 1-5 The sandpaper fixing mechanism for a sandpaper polishing device shown includes a support plate 1. A threaded post 2 is fixedly connected to the top center of the support plate 1. A connecting rod 3 is fixedly connected to the top of the threaded post 2. A fixing ring 4 is fixedly connected to the top edge of the threaded post 2. Multiple fixing studs 5 are fixedly connected around the top of the threaded post 2. A first extrusion plate 6 and an extrusion nut 7 are sleeved in the middle of the fixing studs 5. By inserting the edge of the sandpaper between the first extrusion plate 6 and the support plate 1, and by rotating the extrusion nut 7 to extrude the first extrusion plate 6, the edge of the sandpaper can be fixed. The clamping and fixing strength is improved by the cooperation of the fixing ring 4 and the arc-shaped groove 10, and loosening is prevented.
[0025] The bottom of the first extrusion plate 6 is provided with an arc-shaped groove 10. A limit strip 8 is fixedly connected to the through hole in the middle of the first extrusion plate 6. A limit groove 9 is provided on one side of the fixing stud 5. A sandpaper body 18 is provided at the bottom of the support plate 1. The stability of the first extrusion plate 6 moving up and down can be improved by the cooperation of the limit strip 8 and the limit groove 9.
[0026] The bottom of the support plate 1 has a groove 11, and a push plate 12 is set in the middle of the groove 11. Multiple fixing posts 13 are fixedly connected to the top of the push plate 12. The top of the fixing posts 13 passes through the support plate 1 and is fixedly connected to a limit ring 14. A rotating ring 15 is sleeved in the middle of the threaded post 2. A pressing bolt 16 is inserted into one side of the top of the rotating ring 15. A second pressing plate 17 is rotatably connected to the bottom end of the pressing bolt 16. Rotating the rotating ring 15 controls the limit ring 14 to drive the fixing post 13 to move downward, so that the push plate 12 supports the middle position of the bottom sandpaper body 18, which can tighten the sandpaper body 18 and improve the use effect. By rotating the pressing bolt 16, the timer is controlled to press the limit ring 14, which can fix the position of the rotating ring 15 and the limit ring 14, thereby fixing the position of the push plate 12, effectively improving the flatness and stability of the sandpaper, reducing the vibration and displacement of the sandpaper during the sanding process, and improving the sanding quality.
[0027] As attached Figure 1-5As shown, the cross-sectional shape of the fixing ring 4 is set as a semi-circular structure, the arc-shaped groove 10 corresponds to the fixing ring 4, the first extrusion plate 6 is set as a fan-shaped structure, the limiting strip 8 corresponds to the limiting groove 9, the limiting strip 8 is set in the middle of the limiting groove 9, the extrusion nut 7 is threadedly connected to the fixing stud 5, the extrusion nut 7 is set at the top of the first extrusion plate 6, the clamping and fixing strength is improved by the cooperation of the fixing ring 4 and the arc-shaped groove 10, and loosening is avoided. The stability of the first extrusion plate 6 moving up and down is improved by the cooperation of the limiting strip 8 and the limiting groove 9, and the clamping and fixing effect is improved.
[0028] As attached Figure 1 , 2 As shown in Figures 3 and 5, the push plate 12 is adapted to the groove 11, the fixed post 13 corresponds to the rotating ring 15, the top of the limiting ring 14 is embedded in the middle of the rotating ring 15, the cross-sectional shape of the limiting ring 14 is set as "L", the second pressing plate 17 corresponds to the top wall of the limiting ring 14, the top of the limiting ring 14 is provided with a tooth groove, the bottom of the second pressing plate 17 is provided with teeth, the teeth are adapted to the tooth groove, the rotating ring 15 is threadedly connected to the threaded post 2, and the four sides of the sandpaper body 18 are folded to the top of the support plate 1 through the side of the support plate 1 and covered. On the fixed ring 4, the first pressing plate 6 is set on the top of the sandpaper body 18 at the top of the fixed ring 4. When the rotating ring 15 moves up and down through the limiting ring 14, the pushing plate 12 can be controlled to move up and down through the fixed column 13, which is convenient for tightening. The second pressing plate 17 presses the limiting ring 14, which can fix the position of the rotating ring 15 and the limiting ring 14, thereby fixing the position of the pushing plate 12, preventing loosening, improving the use effect, facilitating the installation and fixing of the sandpaper body 18, improving the fixing strength, and facilitating disassembly and replacement, thus improving the sanding quality.
[0029] The working principle of this utility model is as follows: When in use, the sandpaper body 18 is first placed at the bottom of the support plate 1. The four sides of the sandpaper body 18 are folded to the top of the support plate 1 through the side of the support plate 1 and covered on the fixing ring 4. Then, the first pressing plate 6 is moved downward to press the edge of the sandpaper body 18, and the pressing nut 7 is rotated to press the first pressing plate 6 to achieve fixation. The fixing strength can be improved by the cooperation of the arc-shaped groove 10 and the fixing ring 4.
[0030] Then, rotating the rotating ring 15 controls the push plate 12 to move downwards, pressing the push plate 12 against the middle of the sandpaper. Then, rotating the extrusion bolt 16 controls the timer to press and fix the limit ring 14, which can fix the position of the rotating ring 15 and the push plate 12 and improve the fixing strength.
[0031] 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, improvements, etc., 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 sandpaper fixing mechanism for a sandpaper polishing device, comprising a support plate (1), characterized in that: A threaded post (2) is fixedly connected to the top center of the support plate (1), a connecting rod (3) is fixedly connected to the top of the threaded post (2), a fixing ring (4) is fixedly connected to the top edge of the threaded post (2), and multiple fixing studs (5) are fixedly connected around the top of the threaded post (2). A first extrusion plate (6) and an extrusion nut (7) are sleeved in the middle of the fixing studs (5). The bottom of the first extrusion plate (6) is provided with an arc-shaped slot (10), a limit strip (8) is fixedly connected to the through hole in the middle of the first extrusion plate (6), a limit slot (9) is provided on one side of the fixed stud (5), and a sandpaper body (18) is provided at the bottom of the support plate (1). The bottom of the support plate (1) is provided with a groove (11), and a push plate (12) is provided in the middle of the groove (11). Multiple fixed columns (13) are fixedly connected to the top of the push plate (12). The top of the fixed column (13) passes through the support plate (1) and is fixedly connected with a limit ring (14). A rotating ring (15) is sleeved in the middle of the threaded column (2). A pressing bolt (16) is inserted on one side of the top of the rotating ring (15). A second pressing plate (17) is rotatably connected to the bottom end of the pressing bolt (16).
2. The sandpaper fixing mechanism for a sandpaper polishing device according to claim 1, characterized in that: The cross-sectional shape of the fixing ring (4) is set as a semi-circular structure, the arc-shaped groove (10) corresponds to the fixing ring (4), and the first extrusion plate (6) is set as a fan-shaped structure.
3. The sandpaper fixing mechanism for a sandpaper polishing device according to claim 1, characterized in that: The limiting strip (8) corresponds to the limiting slot (9). The limiting strip (8) is located in the middle of the limiting slot (9). The extrusion nut (7) is threadedly connected to the fixing stud (5). The extrusion nut (7) is located on the top of the first extrusion plate (6).
4. The sandpaper fixing mechanism for a sandpaper polishing device according to claim 1, characterized in that: The push plate (12) is adapted to the groove (11), the fixed column (13) corresponds to the rotating ring (15), the top of the limiting ring (14) is embedded in the middle of the rotating ring (15), and the cross-sectional shape of the limiting ring (14) is set to "L".
5. The sandpaper fixing mechanism for a sandpaper polishing device according to claim 1, characterized in that: The second extrusion plate (17) corresponds to the top wall of the limiting ring (14). The top of the limiting ring (14) is provided with a toothed groove, and the bottom of the second extrusion plate (17) is provided with teeth. The teeth and the toothed groove are matched. The rotating ring (15) is threadedly connected to the threaded column (2).
6. The sandpaper fixing mechanism for a sandpaper polishing device according to claim 1, characterized in that: The four sides of the sandpaper body (18) are folded to the top of the support plate (1) through the side of the support plate (1) and covered on the fixing ring (4). The first extrusion plate (6) is set on the top of the sandpaper body (18) on the top of the fixing ring (4).