A device for bending and straightening slats with abrasive cloth

Abstract

This utility model provides a device for bending and finishing abrasive cloth for louver sheets, and relates to the field of coated abrasive manufacturing technology. The device uses an abrasive cloth roll in conjunction with a drive motor to achieve automatic unwinding and rewinding of the abrasive cloth. The key innovation lies in the bending path design: after the abrasive cloth passes through multiple sets of steel pipes on the bending support to achieve conventional bending at multiple angles, it is then bent in two consecutive 45° directions by two steel pipe cutters. This device achieves multi-level efficient bending of "90° conventional bending, 45° bending, and 45° bending", which fully breaks down the abrasive cloth's adhesive layer to achieve a moderate softness and hardness, meeting the requirements for louver sheet production. Furthermore, the final softness and hardness of the abrasive cloth can be flexibly adjusted by changing steel pipe cutters of different diameters.

Description

Technical Field

[0001] This utility model relates to the field of coated abrasive manufacturing technology, and in particular to a device for bending and finishing louvered sheets with sandpaper. Background Technology

[0002] A louvered abrasive sheet is a disc-shaped coated abrasive product made by firmly bonding many abrasive cloth sheets to a disc-shaped substrate. It has an elastic structure and can grind flat surfaces, curved surfaces, grooves, and edges. It is very suitable for removing weld seams, mixing, deburring, removing rust, surface pretreatment, and edge grinding of various metal surfaces.

[0003] To ensure that the louvers have both elasticity and stiffness to support grinding, the abrasive cloth used must possess both softness and stiffness. Therefore, to achieve the required flexibility, a device for bending and straightening abrasive cloth for louvers needs to be designed. Utility Model Content

[0004] This invention provides a device for bending and straightening styling venetian sheets with abrasive cloth, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution, comprising: a flexible support first, a flexible support second, and a flexible support third. A sandpaper roll first and a guide roller assembly first are installed on the flexible support first. A sandpaper roll second and a guide roller assembly second are installed on the flexible support second. A guide roller assembly third is installed on the flexible support third. Identical steel pipe cutters are provided on both sides of the flexible support third between the flexible support first and the flexible support second.

[0006] Preferably, a drive motor is fixedly mounted on the top of one side of the flexible support, one end of the abrasive cloth roll is fixedly connected to the output shaft of the drive motor, and the other end of the abrasive cloth roll is mounted on the top of the other side of the flexible support through a bearing seat.

[0007] Preferably, the guide roller assembly includes: steel roller 1, rubber roller 1, steel roller 3, steel roller 4 and steel roller 5. The flexible support 1 is provided with steel roller 1, rubber roller 1, steel roller 3, steel roller 4 and steel roller 5 in sequence along the flexible direction. Steel roller 1 is installed on the top of the flexible support 1 through an adjustment assembly. Rubber roller 1, steel roller 3 and steel roller 4 are installed on the top of the flexible support 1 through bearing seats. Steel roller 5 is installed on the bottom of the flexible support 1 through a bearing seat.

[0008] Preferably, steel roller 1, steel roller 3, steel roller 4 and steel roller 5 have the same diameter, and rubber roller 1 has a larger diameter than steel roller 1.

[0009] Preferably, the guide roller assembly 2 includes: steel roller 6, steel roller 7, rubber roller 2 and steel roller 9. The flexible support 2 is provided with steel roller 6, steel roller 7, rubber roller 2 and steel roller 9 rotatably along the flexible direction. Steel roller 6 is installed at the bottom of the flexible support 2 through a bearing seat, and steel roller 7, rubber roller 2 and steel roller 9 are installed at the top of the flexible support 2 through a bearing seat.

[0010] Preferably, steel rollers six, seven, and nine have the same diameter, and rubber roller two has a larger diameter than steel roller six.

[0011] Preferably, the guide roller assembly three includes: steel roller ten, steel roller eleven, and steel roller twelve. The flexible support three is provided with steel roller ten, steel roller eleven, and steel roller twelve rotatably along the flexible direction. Steel roller ten and steel roller twelve are installed at the bottom of the flexible support three through bearing seats, and steel roller eleven is installed at the top of the flexible support three through bearing seats. Steel roller ten and steel roller twelve have the same diameter, and the diameter of steel roller eleven is larger than the diameter of steel roller ten.

[0012] Preferably, the same U-shaped adjusting bracket is fixedly provided below both rubber roller one and rubber roller two, and two sets of tightening steel rollers are installed on each set of U-shaped adjusting brackets.

[0013] Preferably, a number of hydraulic rods are fixedly installed inside the U-shaped cavity of the U-shaped adjusting bracket, and a guide plate is fixedly installed on the output shaft of the hydraulic rod. The two ends of the guide plate are slidably connected to the inner wall of the U-shaped cavity of the U-shaped adjusting bracket, and the two ends of the clamping steel roller are movably installed on the top of the guide plate through the support bearing.

[0014] Preferably, the adjustment component includes: a support frame, which is fixedly mounted on the top of a flexible support, a guide support that is slidably connected to the inner wall of the support frame, a steel roller that is rotatably connected to the support frame, a handle fixedly mounted on the top of a threaded rod, the threaded rod extending movably into the support frame and rotatably connected to the top of the guide support, and the threaded rod and the support frame being connected by threads.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. Achieve efficient, phased bending, significantly improving the bending effect of abrasive cloth:

[0017] The device innovatively combines conventional 90° flexible bending (achieved by combining steel pipes of different diameters) with continuous 45° directional flexible bending (achieved by a specially designed large-diameter steel pipe cutter);

[0018] When the abrasive cloth is under tension, it passes through these three different angles of bending in sequence, which can more fully break up the mortar layer and make the abrasive cloth reach the ideal state of moderate softness and hardness, effectively meeting the core technical requirements of venetian sheet production.

[0019] 2. Product quality is highly controllable and has a wide adjustable range:

[0020] By changing the steel pipe cutter of different diameters, the bending radius of the abrasive cloth can be adjusted flexibly and conveniently.

[0021] This adjustment directly affects the final hardness of the abrasive cloth, enabling the device to produce louvered abrasive cloths that meet different application scenarios and hardness requirements.

[0022] 3. Optimization of the smoothness effect enhancement mechanism:

[0023] A hydraulically driven, liftable clamping steel roller assembly is installed at the critical flexible point.

[0024] By precisely controlling the pressure applied to the abrasive cloth by the top steel roller through the hydraulic rod, the crushing effect during the bending process is further enhanced, ensuring the stability and efficiency of the bending process;

[0025] 4. The tension of the abrasive cloth is precisely controllable:

[0026] The steel roller is designed with an independent mechanical adjustment component. By turning the handle, the operator can finely adjust the height of the steel roller relative to the abrasive cloth roll, thereby achieving stepless and precise control of the abrasive cloth tension. This ensures that the abrasive cloth tension is stable and meets the requirements throughout the bending path, which is crucial for the bending effect.

[0027] 5. The equipment has a compact structure and stable operation:

[0028] The three flexible supports are rationally arranged and integrate the drive motor, abrasive wheel, steel pipe assemblies of various specifications, steel pipe cutter and adjustment mechanism;

[0029] Each steel pipe is stably supported by bearing housings to ensure smooth operation; the adjustment assembly structure is reliable.

[0030] 6. Implement an automated continuous bending and finishing process:

[0031] The abrasive cloth is released from abrasive cloth roll one → through the flexible path formed by guide roller assembly one → the right steel pipe knife turns 45° to be flexible → through the path formed by guide roller assembly three → the left steel pipe knife turns 45° to be flexible → through the path formed by guide roller assembly two → and finally rewound by abrasive cloth roll two.

[0032] This invention, through its unique multi-angle combined flexible structure design, particularly by using a large-diameter steel pipe cutter as a 45° flexible cutter, and supplemented by an optimized mechanism that allows for adjustable abrasive cloth tension and enhanced local pressure, successfully solves the technical challenge of deep and effective flexible treatment of abrasive cloth in the production of louvered sheets.

[0033] This invention ensures that the abrasive layer of the abrasive cloth is fully broken up to achieve the required "moderate softness and hardness" physical properties. The bending effect can be flexibly adjusted by the diameter of the steel pipe cutter. The device operates stably and has a high degree of automation, significantly improving the bending quality and production efficiency of the 100-sheet abrasive cloth. Attached Figure Description

[0034] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0035] In the attached diagram:

[0036] Figure 1 This is a top view of the structure of this utility model;

[0037] Figure 2 This is a schematic diagram of the flexible support structure from one side of the present invention;

[0038] Figure 3 This is a schematic diagram of the two sides of the flexible support structure of this utility model;

[0039] Figure 4 This is a schematic diagram of the three-side view structure of the flexible support in this utility model;

[0040] Figure 5 This is a schematic diagram of the cross-sectional structure of the U-shaped adjustment bracket in this utility model;

[0041] Figure 6 This is a side view of the U-shaped adjustment bracket in this utility model.

[0042] Figure 7 This is a schematic diagram of the adjustment component structure in this utility model;

[0043] Figure 8 This is a schematic diagram of the flexible direction of this utility model.

[0044] In the diagram: 1. Flexible support bracket one; 2. Flexible support bracket two; 3. Flexible support bracket three; 4. Steel pipe knife; 5. Drive motor one; 6. Adjustment component; 7. Sandpaper roll one; 8. Steel roller one; 9. Rubber roller one; 10. Steel roller three; 11. U-shaped adjustment bracket; 12. Steel roller four; 13. Steel roller five; 14. Steel roller six; 15. Steel roller seven; 16. Rubber roller two; 17. Steel roller nine; 18. Sandpaper roll two; 19. Drive motor two; 20. Steel roller ten; 21. Steel roller eleven; 22. Steel roller twelve; 23. Guide plate; 24. Tightening steel roller; 25. Support bearing; 26. Handle; 27. Threaded rod; 28. Guide support component; 29. ​​Support frame; 30. Sandpaper; 31. Hydraulic rod. Detailed Implementation

[0045] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0046] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described using the same technical terms, and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, such a combination should be considered non-existent and not within the scope of protection claimed by this utility model.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] Please see Figures 1-8 This utility model provides a technical solution, including: a flexible support 1, a flexible support 2, and a flexible support 3. The flexible support 1 is equipped with an abrasive cloth roll 7 and a guide roller assembly 1. The flexible support 2 is equipped with an abrasive cloth roll 28 and a guide roller assembly 2. The flexible support 3 is equipped with a guide roller assembly 3. The same steel pipe knife 4 is provided on both sides of the flexible support 3 and between the flexible support 1 and the flexible support 2.

[0049] Furthermore, a drive motor 5 is fixedly installed on the top of one side of the flexible bracket 1, and one end of the abrasive cloth roll 7 is fixedly connected to the output shaft of the drive motor 5, while the other end of the abrasive cloth roll 7 is installed on the top of the other side of the flexible bracket 1 through a bearing seat.

[0050] Furthermore, the guide roller assembly includes: steel roller 8, rubber roller 9, steel roller 3 10, steel roller 4 12 and steel roller 5 13. The flexible support 1 is provided with steel roller 8, rubber roller 9, steel roller 3 10, steel roller 4 12 and steel roller 5 13 rotating sequentially along the flexible direction. Steel roller 8 is installed on the top of the flexible support 1 through adjusting assembly 6. Rubber roller 9, steel roller 3 10 and steel roller 4 12 are installed on the top of the flexible support 1 through bearing seats. Steel roller 5 13 is installed on the bottom of the flexible support 1 through bearing seats.

[0051] Furthermore, steel rollers 1-8, 3-10, 4-12, and 5-13 have the same diameter, while rubber roller 1-9 has a larger diameter than steel roller 1-8.

[0052] Furthermore, the guide roller assembly 2 includes: steel roller 6 14, steel roller 7 15, rubber roller 2 16, and steel roller 9 17. The flexible support 2 is provided with steel roller 6 14, steel roller 7 15, rubber roller 2 16, and steel roller 9 17 rotating sequentially along the flexible direction. Steel roller 6 14 is installed at the bottom of the flexible support 2 through a bearing seat, and steel roller 7 15, rubber roller 2 16, and steel roller 9 17 are installed at the top of the flexible support 2 through a bearing seat.

[0053] Furthermore, steel rollers 6.14, 7.15, and 9.17 have the same diameter, while rubber roller 2.16 has a larger diameter than steel roller 6.14.

[0054] Furthermore, the guide roller assembly three includes: steel roller 10 20, steel roller 11 21, and steel roller 12 22. The flexible support 3 is provided with steel roller 10 20, steel roller 11 21, and steel roller 12 22 rotating sequentially along the flexible direction. Steel roller 10 20 and steel roller 12 22 are installed at the bottom of the flexible support 3 through bearing seats, and steel roller 11 21 is installed at the top of the flexible support 3 through bearing seats. Steel roller 10 20 and steel roller 12 22 have the same diameter, and the diameter of steel roller 11 21 is larger than the diameter of steel roller 10 20.

[0055] Furthermore, both rubber roller 19 and rubber roller 216 are fixedly provided with the same U-shaped adjusting bracket 11, and each U-shaped adjusting bracket 11 is equipped with two sets of tightening steel rollers 24.

[0056] Furthermore, several sets of hydraulic rods 31 are fixedly installed inside the U-shaped cavity of the U-shaped adjustment bracket 11, and a guide plate 23 is fixedly installed on the output shaft of the hydraulic rod 31. The two ends of the guide plate 23 are respectively slidably connected to the inner wall of the U-shaped cavity of the U-shaped adjustment bracket 11, and the two ends of the clamping steel roller 24 are movably installed on the top of the guide plate 23 through the support bearing 25.

[0057] Furthermore, the adjustment assembly 6 includes: a support frame 29, which is fixedly mounted on the top of the flexible support 1; a guide support 28 that is slidably connected to the inner wall of the support frame 29; a steel roller 8 that is rotatably connected to the support frame 29; a handle 26 that is fixedly mounted on the top of the threaded rod 27; the threaded rod 27 extends movably into the support frame 29 and is rotatably connected to the top of the guide support 28; and the threaded rod 27 is connected to the support frame 29 by threads.

[0058] Preferably, the models of drive motor 5 and drive motor 19 can be: TZ180XSF\TZ184XYA2001.

[0059] Preferably, the hydraulic rod model 31 can be: SS6285L\50N–150N series.

[0060] The working principle and beneficial effects of the above scheme are as follows: During use, the drive motor 5 rotates the abrasive cloth roll 7, thus assisting in the release of the abrasive cloth 30 wound on it. The abrasive cloth 30 is wrapped around the steel roller 8, and the threaded rod 27 is rotated by turning the handle 26. This causes the guide support 28 to move up and down along the support frame 29, thereby synchronously controlling the height of the steel roller 8 relative to the abrasive cloth roll 7. After adjusting the tension of the abrasive cloth 30, the abrasive cloth 30 passes under the rubber roller 9, over the steel rollers 10 and 12, and then wraps around the steel roller 13. Located on the right side, the steel pipe cutter 4 turns and bends at a 45° angle, passes under steel roller 10 20, passes over steel roller 11 21 and wraps around steel roller 12 22. Then, it turns and bends at a 45° angle via the left side steel pipe cutter 4, passes under steel roller 6 14, passes over steel roller 7 15 and wraps around rubber roller 2 16. Finally, it passes over steel roller 9 17 and wraps around abrasive cloth roll 2 18. At this time, drive motor 2 19 synchronously drives abrasive cloth roll 2 18 to rotate, thereby assisting the abrasive cloth 30 wrapped on it to be wound up, thus completing the bending and finishing of the yarn.

[0061] In order to improve the bending effect, the hydraulic rod 31 can be controlled to push the guide plate 23 up until the two sets of clamping steel rollers 24 just come into contact with the sandpaper 30 wound on the steel roller 8, thereby increasing the pressure on the sandpaper 30 and thus improving the bending effect.

[0062] Using the above method, large-diameter rubber roller 19 and rubber roller 26 are used as 90° bending blades. After the abrasive cloth 30 is bent in the conventional 90° direction, it is then bent in two 45° directions by two large-diameter steel pipe blades 4. When the abrasive cloth 30 is under tension, it wraps around the large-diameter steel pipe blade 4 in one 45° direction and then bends it in the other 45° direction, which further breaks up the abrasive layer. The abrasive cloth 30 achieves a moderate hardness, which meets the technical requirements for making louvered sheets. Furthermore, by changing the diameter of the steel pipe blades 4, the abrasive cloth 30 can obtain different hardness effects.

[0063] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A device for bending and straightening slats with abrasive cloth, characterized in that: include: Flexible support one (1), flexible support two (2) and flexible support three (3). Flexible support one (1) is equipped with a sandpaper roll one (7) and a guide roller assembly one. Flexible support two (2) is equipped with a sandpaper roll two (18) and a guide roller assembly two. Flexible support three (3) is equipped with a guide roller assembly three. The same steel pipe knife (4) is set between the two sides of flexible support three (3) and flexible support one (1) and flexible support two (2).

2. The squeegee bending and straightening device for louver sheets as described in claim 1, characterized in that: A drive motor (5) is fixedly installed on the top of one side of the flexible bracket (1). One end of the abrasive cloth roll (7) is fixedly connected to the output shaft of the drive motor (5), and the other end of the abrasive cloth roll (7) is installed on the top of the other side of the flexible bracket (1) through a bearing seat.

3. The squeegee bending and straightening device for louver sheets as described in claim 1, characterized in that: The guide roller assembly includes: steel roller 1 (8), rubber roller 1 (9), steel roller 3 (10), steel roller 4 (12) and steel roller 5 (13). The flexible support 1 (1) is provided with steel roller 1 (8), rubber roller 1 (9), steel roller 3 (10), steel roller 4 (12) and steel roller 5 (13) rotating sequentially along the flexible direction. Steel roller 1 (8) is installed on the top of the flexible support 1 (1) through the adjusting assembly (6). Rubber roller 1 (9), steel roller 3 (10) and steel roller 4 (12) are installed on the top of the flexible support 1 (1) through the bearing seat. Steel roller 5 (13) is installed on the bottom of the flexible support 1 (1) through the bearing seat.

4. The squeegee bending and straightening device for louver sheets as described in claim 3, characterized in that: Steel roller 1 (8), steel roller 3 (10), steel roller 4 (12) and steel roller 5 (13) have the same diameter, while rubber roller 1 (9) has a larger diameter than steel roller 1 (8).

5. The squeegee bending and finishing device for louver sheets as described in claim 3, characterized in that: The guide roller assembly 2 includes: steel roller 6 (14), steel roller 7 (15), rubber roller 2 (16) and steel roller 9 (17). The flexible support 2 (2) is provided with steel roller 6 (14), steel roller 7 (15), rubber roller 2 (16) and steel roller 9 (17) rotating sequentially along the flexible direction. Steel roller 6 (14) is installed at the bottom of the flexible support 2 (2) through a bearing seat, and steel roller 7 (15), rubber roller 2 (16) and steel roller 9 (17) are installed at the top of the flexible support 2 (2) through a bearing seat.

6. The squeegee bending and finishing device for louver sheets as described in claim 5, characterized in that: Steel rollers 6 (14), 7 (15), and 9 (17) have the same diameter, while rubber roller 2 (16) has a larger diameter than steel roller 6 (14).

7. The squeegee bending and finishing device for louver sheets as described in claim 1, characterized in that: The guide roller assembly three includes: steel roller ten (20), steel roller eleven (21) and steel roller twelve (22). The flexible support three (3) is provided with steel roller ten (20), steel roller eleven (21) and steel roller twelve (22) rotating in sequence along the flexible direction. Steel roller ten (20) and steel roller twelve (22) are installed at the bottom of the flexible support three (3) through bearing seats, and steel roller eleven (21) is installed at the top of the flexible support three (3) through bearing seats. Steel roller ten (20) and steel roller twelve (22) have the same diameter, and the diameter of steel roller eleven (21) is larger than the diameter of steel roller ten (20).

8. The squeegee bending and finishing device for louver sheets as described in claim 5, characterized in that: Both rubber roller 1 (9) and rubber roller 2 (16) are fixedly provided with the same U-shaped adjustment bracket (11), and each U-shaped adjustment bracket (11) is equipped with two sets of tightening steel rollers (24).

9. The squeegee bending and finishing device for louvered sheets as described in claim 8, characterized in that: Several sets of hydraulic rods (31) are fixedly installed inside the U-shaped cavity of the U-shaped adjustment bracket (11), and a guide plate (23) is fixedly installed on the output shaft of the hydraulic rod (31). The two ends of the guide plate (23) are respectively slidably connected to the inner wall of the U-shaped cavity of the U-shaped adjustment bracket (11). The two ends of the clamping steel roller (24) are movably installed on the top of the guide plate (23) through the support bearing (25).

10. The abrasive cloth bending and finishing device for louver sheets as described in claim 3, characterized in that: The adjustment assembly (6) includes: a support frame (29), which is fixedly mounted on the top of the flexible support (1), a guide support (28) which is slidably connected to the inner wall of the support frame (29), a steel roller (8) which is rotatably connected to the support frame (29), a handle (26) which is fixedly mounted on the top of the threaded rod (27), the threaded rod (27) which extends movably into the support frame (29) and is rotatably connected to the top of the guide support (28), and the threaded rod (27) and the support frame (29) are connected by threads.

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