A straightening roll surface dressing device

Abstract

The utility model belongs to mechanical equipment technical field, more specifically, it is related to a straightening roll surface dressing device. Install the take-up wheel (8) and the tape wheel (2) on the device support (1), the device support (1) still movably connects the movable swing arm (5) one end, the movable swing arm (5) other end installs movable auxiliary wheel (4), spring (6) one end connects movable swing arm (5), spring (6) other end connects device support (1). The straightening roll surface dressing device, simple structure can eliminate artificial near machine dressing operation security risk, realize constant pressure, even speed dressing, ensure the roughness uniformity of roll surface, improve dressing efficiency, reduce the human consumption.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical equipment technology, and more specifically, it relates to a device for grinding the surface of a straightening roller. Background Technology

[0002] In the field of metal processing equipment, the grinding of the surface of the straightening rollers of the bending straightening machine is involved. In the existing technology, the main method is to manually grind the surface of the straightening rollers on a lathe with sandpaper in hand. The specific operation method is: the straightening roller is held in the lathe chuck and rotated, and the operator holds the sandpaper and presses the roller surface, and moves it manually along the roller axis. This technology is widely used in the field of metal processing (such as the maintenance of straightening rollers in steel plants), but it has significant defects. The specific defects are as follows: (1) High safety risk: the operator's hands need to be close to the lathe rotating chuck (distance ≤10mm), and they are easily caught and caused mechanical injury; (2) Poor grinding quality: the manual pressure is uneven and the moving speed is unstable, resulting in inconsistent roller surface roughness (measured Ra fluctuation >0.8μm), which affects the straightening accuracy and the quality of the belt surface; (3) Low efficiency: the grinding time of a single roller is >30 minutes, and a set of rollers (about 20-50 rollers) requires 2 people to take turns, which is very expensive. (4) Holding sandpaper and continuously polishing will cause the sandpaper to get hot and burn the employee's palms, causing blisters.

[0003] Existing technology includes a device titled "Automatic Straightening Roller Surface Grinding Equipment" with publication number CN115070526A. This technology discloses an automatic straightening roller surface grinding device, characterized by comprising an X-axis support device, an X-axis large crossbeam, an X-axis small crossbeam, a Y-axis moving device, a Z-axis lifting device, and a grinding camera device. The Z-axis lifting device is slidably disposed above the Y-axis moving device. The X-axis support device is installed through the Z-axis lifting device. The X-axis large crossbeam is slidably disposed within the X-axis support device. The X-axis small crossbeam is slidably disposed within the X-axis large crossbeam. The grinding camera device is installed at the front end of the X-axis small crossbeam. This invention aims to add an online non-standard fully automatic or semi-automatic straightening roller surface grinding device to the finishing area of ​​the thick plate section, utilizing the existing space and ground outside the straightening machine. This reduces the labor intensity of manual labor and improves operational safety for safe production. However, this technology does not relate to the technical solution of this application. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a straightening roller surface grinding device that is simple in structure, can eliminate the safety hazards of manual near-machine grinding operation, achieve constant pressure and uniform speed grinding, ensure uniform roller surface roughness, improve grinding efficiency, and reduce manpower consumption, in order to address the shortcomings of the existing technology.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] This utility model is a device for grinding the surface of a straightening roller. A take-up roller and a release roller are installed on the device support. One end of a movable swing arm is movably connected to the device support. A movable auxiliary wheel is installed on the other end of the movable swing arm. One end of a spring is connected to the movable swing arm, and the other end of the spring is connected to the device support.

[0007] The take-up pulley and the release pulley are movably mounted on the same side of the device bracket, with the take-up pulley located above the release pulley. The movable auxiliary wheel is mounted on one side of the movable swing arm, and the movable auxiliary wheel and the release pulley are located on the same side.

[0008] The movable swing arm movable connecting device bracket is located at one end of the device bracket between the take-up pulley and the release pulley 2.

[0009] The device support is also equipped with fixed auxiliary wheels at the bottom.

[0010] The sand belt released by the release wheel passes around the fixed auxiliary wheel and the movable auxiliary wheel and is then wound onto the take-up wheel.

[0011] Both the take-up pulley and the release pulley are one-way pulleys, and one-way bearings are installed inside the take-up pulley and the release pulley rotate in opposite directions.

[0012] The base plate of the device bracket is bolted to the lathe table of the lathe.

[0013] The straightening roller clamps are mounted on the lathe.

[0014] The spring is a double-hook spring, with one end hooked into the hook hole above the movable swing arm and the other end hooked into the hook hole on the device bracket.

[0015] The working principle and beneficial effects of this utility model are as follows:

[0016] The straightening roller surface grinding device of this utility model includes a take-up roller and a release roller mounted on a support frame. The release roller carries a rolled-up abrasive belt for continuously releasing new, unused abrasive belt, while the take-up roller retracts used abrasive belt. A movable auxiliary wheel is mounted on the other end of a movable swing arm, with one end of a spring connected to the swing arm. The spring applies tension to the swing arm, allowing the auxiliary wheel to dynamically apply force to the abrasive belt, ensuring tension is maintained. The support frame is mounted on the lathe table of a lathe for a fixed position. The straightening roller to be ground is clamped on the lathe, and then the straightening roller contacts the abrasive belt. The lathe adjusts the rotation and extension of the straightening roller, automatically grinding the surface of the straightening roller with the abrasive belt. After the abrasive belt in contact with the straightening roller surface has been used for a period of time, the take-up roller is manually rotated to release new abrasive belt and retract the old one, ensuring that the abrasive belt is replaced after a certain period of use. This achieves the following beneficial effects: 1. Enhanced safety: Operators do not need to contact rotating parts, increasing the safety distance and completely avoiding mechanical injury; 2. Optimized quality: Constant pressure springs ensure stable belt pressure, and uniform lathe movement improves the uniformity of roller surface roughness; 3. Increased efficiency: Single roller grinding time is shortened, and manpower is reduced to one person for monitoring, thus improving efficiency; 4. Reduced costs: Increased belt utilization leads to lower annual maintenance costs. Attached Figure Description

[0017] The following is a brief explanation of the contents depicted in the accompanying drawings and the markings therein:

[0018] Figure 1 This is a schematic diagram of the structure of the straightening roller surface grinding device described in this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the straightening roller surface grinding device described in this utility model;

[0020] The labels in the attached diagram are as follows: 1. Device support; 2. Belt feeding pulley; 3. Fixed auxiliary wheel; 4. Movable auxiliary wheel; 5. Movable swing arm; 6. Spring; 7. Sanding belt; 8. Belt taking-up pulley; 9. Straightening roller; 10. Lathe table; 11. Support base plate. Detailed Implementation

[0021] The following description, with reference to the accompanying drawings, provides a more detailed explanation of the specific embodiments of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the functions and working principles of each part:

[0022] As attached Figure 1 Appendix Figure 2As shown, this utility model is a straightening roller surface grinding device. A take-up roller 8 and a release roller 2 are mounted on a device support 1. One end of a movable swing arm 5 is movably connected to the device support 1, and a movable auxiliary wheel 4 is mounted on the other end of the movable swing arm 5. One end of a spring 6 is connected to the movable swing arm 5, and the other end of the spring 6 is connected to the device support 1. This structure addresses the shortcomings of existing technologies by proposing an improved technical solution. In this configuration, the take-up roller 8 and the release roller 2 are mounted on the device support 1. The release roller 2 has a rolled sanding belt 7 for continuously releasing unused new sanding belt 7, while the take-up roller 8 is used to wind up used old sanding belt 7. The other end of the movable swing arm 5 is mounted with the movable auxiliary wheel 4. One end of the spring 6 is connected to the movable swing arm 5, and the spring 6 applies tension to the movable swing arm 5, allowing the movable auxiliary wheel 4 to dynamically apply force to the sanding belt 7, ensuring tension on the sanding belt 7. The device bracket 1 is mounted on the lathe table 10 of the lathe, fixing the entire device in a fixed state. The straightening roller 9, which needs to be ground, is clamped on the lathe. Then, the straightening roller 9 contacts the sanding belt 7, and the lathe drives the straightening roller 8 to rotate and extend, which can automatically achieve the grinding of the surface of the straightening roller 9 by the sanding belt 7. After the sanding belt in contact with the surface of the straightening roller 9 has been used for a period of time, the take-up pulley 8 is manually rotated to release the new sanding belt 7 from the release pulley 2 and rewind the old sanding belt 7, ensuring that the sanding belt 7 is replaced after a period of use and ensuring the grinding effect. This achieves the following beneficial effects: 1. Enhanced safety: Operators do not need to contact rotating parts, increasing the safety distance to >200mm and completely avoiding mechanical injury; 2. Optimized quality: The constant-pressure spring 6 ensures stable sanding belt pressure within ±5%, and the uniform movement of the lathe improves the surface roughness uniformity of the roller by 60% (measured Ra fluctuation ≤0.15μm); 3. Increased efficiency: Single roller grinding time can be shortened to 8 minutes, reducing manpower to one person for monitoring, increasing efficiency by 300%; 4. Reduced cost: Sanding belt utilization increases by 40%, and annual maintenance costs decrease by more than 50% (taking a steel plant grinding 200 rollers annually as an example). The straightening roller surface grinding device described in this utility model has a simple structure, eliminates the safety hazards of manual near-machine grinding operations, achieves constant pressure and uniform speed grinding, ensures uniform roller surface roughness, improves grinding efficiency, and reduces manpower consumption.

[0023] The take-up reel 8 and the release reel 2 are movably mounted on the same side of the device bracket 1, with the take-up reel 8 positioned above the release reel 2. A movable auxiliary wheel 4 is mounted on one side of the movable swing arm 5, and is located on the same side as the release reel 2. A fixed auxiliary wheel 3 is also provided at the lower part of the device bracket 1. The sanding belt 7 released by the release reel 2 passes over the fixed auxiliary wheel 3 and the movable auxiliary wheel 4 before being wound back onto the take-up reel 8. In this structure, the sanding belt has a certain width and can be supported by the fixed auxiliary wheel 3 and the movable auxiliary wheel 4, ensuring tension.

[0024] The movable swing arm 5 is movably connected to the device bracket 1 at one end, which is positioned between the take-up pulley 8 and the release pulley 2. In this structure, the movable swing arm 5 and the device bracket are movable, and the movable auxiliary wheel 4 is kept under tension by a spring.

[0025] Both the take-up reel 8 and the release reel 2 are one-way reels, each with a one-way bearing installed inside. The take-up reel 8 and the release reel 2 rotate in opposite directions. This structure, where both the take-up reel 8 and the release reel 2 are one-way reels, is a direct application of existing technology. The cooperation between the take-up reel 8 and the release reel 2 ensures that the release reel can only release the sanding belt, and the take-up reel can only reel in the sanding belt.

[0026] The base plate 11 of the device bracket 1 is bolted to the lathe table 10 of the lathe. The straightening roller clamp is mounted on the lathe. With this structure, the device bracket is fixed in position, and the position of the straightening roller clamp on the lathe ensures reliable contact of the sanding belt and the application of a certain force to the straightening roller. The spring 6 is a double-hook spring; one end of the spring 6 hooks into the hook hole above the movable swing arm 5, and the other end hooks into the hook hole on the device bracket 1. With this structure, both ends of the spring 6 are reliably connected, reliably applying force to the movable swing arm 5.

[0027] The straightening roller surface grinding device of this utility model is structurally configured such that a take-up roller 8 and a release roller 2 are installed on the device support 1. The release roller 2 has a rolled sanding belt 7 for continuously releasing unused new sanding belt 7, while the take-up roller 8 is used to take in used old sanding belt 7. A movable auxiliary wheel 4 is installed at the other end of the movable swing arm 5, and one end of a spring 6 is connected to the movable swing arm 5. The spring 6 applies tension to the movable swing arm 5, allowing the movable auxiliary wheel 4 to dynamically apply force to the sanding belt 7, ensuring that the sanding belt 7 forms tension. The device support 1 is installed on the lathe table 10 of a lathe, fixing the entire device in a fixed state. The straightening roller 9 to be ground is clamped on the lathe, and then the straightening roller 9 contacts the sanding belt 7. The lathe drives the straightening roller 8 to rotate and extend, which can automatically achieve the grinding of the surface of the straightening roller 9 by the sanding belt 7. After the sanding belt in contact with the surface of the straightening roller 9 has been used for a period of time, the take-up roller 8 is manually rotated to release the new sanding belt 7 from the release roller 2 and rewind the old sanding belt 7, ensuring that the sanding belt 7 is replaced after a period of use and ensuring the grinding effect. This achieves the following beneficial effects: 1. Improved safety: The operator does not need to contact the rotating parts, the safety distance is increased to >200mm, and mechanical injury is completely avoided; 2. Optimized quality: The constant pressure spring 6 ensures that the sanding belt pressure is stable within ±5%, and the uniform movement of the lathe improves the uniformity of the roller surface roughness by 60% (measured Ra fluctuation ≤0.15μm); 3. Doubled efficiency: The grinding time of a single roller can be shortened to 8 minutes, and the manpower is reduced to one person to monitor the operation, increasing efficiency by 300%; 4. Reduced cost: The sanding belt utilization rate is increased by 40%, and the annual maintenance cost is reduced by more than 50%.

[0028] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A device for grinding the surface of a straightening roller, characterized in that: A take-up pulley (8) and a release pulley (2) are installed on the device bracket (1). One end of a movable swing arm (5) is also movably connected to the device bracket (1). A movable auxiliary wheel (4) is installed on the other end of the movable swing arm (5). One end of a spring (6) is connected to the movable swing arm (5), and the other end of the spring (6) is connected to the device bracket (1).

2. The straightening roller surface grinding device according to claim 1, characterized in that: The take-up pulley (8) and the release pulley (2) are movably installed on the same side of the device bracket (1). The take-up pulley (8) is located above the release pulley (2). The movable auxiliary wheel (4) is installed on one side of the movable swing arm (5). The movable auxiliary wheel (4) and the release pulley (2) are located on the same side.

3. The straightening roller surface grinding device according to claim 1 or 2, characterized in that: The movable swing arm (5) is movably connected at one end to the device bracket (1) between the take-up pulley (8) and the release pulley (2).

4. The straightening roller surface grinding device according to claim 1 or 2, characterized in that: The device support (1) is also equipped with a fixed auxiliary wheel (3) at the bottom.

5. The straightening roller surface grinding device according to claim 4, characterized in that: The sand belt (7) released by the release wheel (2) passes around the fixed auxiliary wheel (3) and the movable auxiliary wheel (4) and is then wound onto the take-up wheel (8).

6. The straightening roller surface grinding device according to claim 1 or 2, characterized in that: The take-up pulley (8) and the release pulley (2) are both one-way pulleys. One-way bearings are installed inside the take-up pulley (8) and the release pulley (2), and the take-up pulley (8) and the release pulley (2) rotate in opposite directions.

7. The straightening roller surface grinding device according to claim 1 or 2, characterized in that: The bracket base plate (11) of the device bracket (1) is bolted to the lathe table (10) of the lathe.

8. The straightening roller surface grinding device according to claim 1 or 2, characterized in that: The straightening roller (9) is clamped on the lathe.

9. The straightening roller surface grinding device according to claim 1 or 2, characterized in that: The spring (6) is a double-hook spring. One end of the spring (6) is hooked into the hook hole above the movable swing arm (5), and the other end of the spring (6) is hooked into the hook hole on the device bracket (1).

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