A high-precision roll grinding device

Abstract

The application belongs to the field of roll processing equipment, and particularly relates to a high-precision roll polishing equipment, which comprises a base, driving seats respectively installed at the left and right ends of the base, a polisher box installed at the front side of the base, and a polishing frame installed in the polisher box, a slidingly connected moving seat and a roller frame connected with the moving seat are installed at the front end of the polishing frame, rollers are installed at the upper and lower sides of the rear end of the polishing frame and the front end of the roller frame, and a sand belt is sleeved between the three rollers. In the initial state, the three rollers make the sand belt in a taut state, the area of the sand belt close to the roll is a vertical plane, the contact area of the sand belt and the roll is small, the polishing precision is easy to control and adjust, if the moving seat drives the roller frame to move on the polishing frame towards the direction close to the roll, and the polisher box is controlled to move close to the roll, the area of the sand belt close to the roll is tightly attached to the surface of the roll and is in an arc shape with the roll, the contact area of the sand belt and the roll is increased, and the polishing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of roll processing equipment, and particularly relates to a high-precision roll polishing equipment. BACKGROUND

[0002] In the roll polishing processing technology, a roll polishing machine is usually used for processing, wherein most grinding systems use a sand belt to grind the roll, and have the advantages of small vibration, high stability and low use cost, in order to maintain stable and effective polishing effect, the sand belt needs to be in a tight state all the time, and the roll is polished by the tight plane, but there are defects of small contact area and low polishing efficiency.

[0003] The present application designs a high-precision roll polishing equipment to solve the above problems. SUMMARY

[0004] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0005] A high-precision roll polishing equipment, comprising a base and driving seats respectively installed at the left and right ends of the base, a roll support is installed on the base, a polishing machine box and a polishing frame installed in the polishing machine box are installed on the front side of the base, a slidingly connected moving seat and a roller frame connected with the moving seat are installed at the front end of the polishing frame, rollers are installed on the upper and lower sides of the rear end of the polishing frame and the front end of the roller frame, a sand belt is sleeved between the three rollers, a moving base is installed on the base and located at the lower end of the polishing machine box, a rotating lead screw connected with the moving base is installed between the two driving seats, a power mechanism capable of driving the polishing machine box to move forward and backward is installed in the moving base and connected with the polishing machine box, a dust collecting mechanism is installed on the polishing machine box close to the sand belt.

[0006] As a preferred scheme, springs are installed between the inside of the moving seat and the roller frame, and a pressure sensor in contact with the roller frame is installed in the moving seat.

[0007] As a preferred scheme, limiting plates abutting against the outer wall of the polishing frame are respectively installed at the left and right ends of the moving seat.

[0008] As a preferred scheme, a hydraulic push rod connected with the moving seat is installed on the polishing frame.

[0009] As a preferred scheme, positioning plates in contact with the side surface of the sand belt are respectively installed at the left and right ends of the polishing frame.

[0010] As a preferred scheme, one of the rollers on the polishing frame is a driving wheel for driving the sand belt to move, and an electric motor in power connection with the roller is installed on the polishing frame.

[0011] As a preferred scheme, the first connecting plate is arranged in the polishing machine box, and the second connecting plate is arranged on the polishing frame.

[0012] As a preferred scheme, the dust collecting mechanism comprises an outer machine box arranged on the side of the polishing machine box, a ventilation cavity is arranged in the outer machine box, a baffle is arranged in the ventilation cavity and close to the polishing frame, the front end of the ventilation cavity faces the base, and a negative pressure dust collecting device is arranged at the rear end of the ventilation cavity.

[0013] As a preferred scheme, the outer machine box is provided with a moving plate arranged in the middle of the ventilation cavity, a through slot is arranged on the baffle, the side of the moving plate is connected with the moving seat through the through slot, the upper and lower ends of the moving plate are respectively rotationally connected with the baffles, a limiting slot vertically extending is arranged on the inner wall of the ventilation cavity, a limiting rod connected with the limiting slot is arranged at the top end of the baffle, a ventilation slot is arranged in the middle of the moving plate, and a telescopic air pipe is arranged between the moving plate and the negative pressure dust collecting device.

[0014] Compared with the prior art, the polishing machine has the following advantages:

[0015] 1、The three rollers in the initial state of the design make the abrasive belt in a taut state, the area of the abrasive belt close to the roller is a vertical plane, the contact area of the abrasive belt and the roller is small, the polishing precision is easy to control and adjust, if the moving seat drives the roller frame to move on the polishing frame towards the roller, the distance between the roller on the roller frame and the other two rollers is shortened, the abrasive belt is in a relaxed state, the polishing machine is controlled to be close to the roller, the area of the abrasive belt close to the roller is tightly attached to the surface of the roller and is in a circular arc shape with the roller, the abrasive belt is also in a taut state, the effective polishing function can be maintained, the contact area of the abrasive belt and the roller is increased, and the polishing efficiency is increased.

[0016] 2、The moving plate and the baffle in the design, in the state that the area of the abrasive belt close to the roller is a vertical plane, the polishing range is small, the two baffles are close to each other, the negative pressure airflow is large and close to the polishing area, in the state that the abrasive belt is tightly attached to the surface of the roller and is in a circular arc shape with the roller, the polishing range is large, the two baffles are far away from each other, the negative pressure airflow range is increased and covers a large range of polishing area. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic view of the present application.

[0018] Figure 2 is a schematic view of the polishing machine box of the present application.

[0019] Figure 3 is a schematic view of the rear side of the polishing machine box of the present application.

[0020] Figure 4 is a schematic view of the polishing frame of the present application.

[0021] Figure 5 is a schematic view of the polishing frame of the present application.

[0022] Figure 6 is a schematic view of the connection relationship between the moving seats of the present application.

[0023] Figure 7 is a schematic view of the sand belt covering the side surface of the roller of the present application.

[0024] Figure 8 is a schematic view of the outer machine case of the present application.

[0025] Figure label name: 1, base; 2, drive seat; 3, roller support; 4, polishing machine case; 5, polishing frame; 6, moving seat; 7, roller frame; 8, roller; 9, sand belt; 10, moving base; 11, rotating screw rod; 12, spring; 13, pressure sensor; 14, limiting plate; 15, hydraulic push rod; 16, positioning plate; 17, motor; 18, first connecting plate; 19, second connecting plate; 20, outer machine case; 21, ventilation cavity; 22, baffle; 23, negative pressure dust collection device; 24, moving plate; 25, partition plate; 26, limiting groove; 27, ventilation groove; 28, telescopic air pipe; 29, roller. DETAILED DESCRIPTION

[0026] The specific embodiments of the present application will be further described in detail below in combination with the drawings and examples. The following examples or drawings are used to illustrate the present application, but not to limit the scope of the present application.

[0027] A high-precision roller polishing device, as shown in Figures 1 to 6 includes a base 1 and a drive seat 2 installed on the left and right ends of the base 1 respectively, a roller support 3 is installed on the base 1, a polishing machine case 4 and a polishing frame 5 installed in the polishing machine case 4 are installed on the front side of the base 1, a first connecting plate 18 is arranged in the polishing machine case 4, a second connecting plate 19 is arranged on the polishing frame 5, and the second connecting plate 19 is fixedly connected with the first connecting plate 18 through bolts;

[0028] A slidingly connected moving seat 6 and a roller frame 7 connected with the moving seat 6 are installed on the front end of the polishing frame 5, rollers 8 are installed on the upper and lower sides of the rear end of the polishing frame 5 and the front end of the roller frame 7, a sand belt 9 is sleeved between the three rollers 8, one of the rollers 8 on the polishing frame 5 is a driving roller for driving the sand belt 9 to move, and a motor 17 is installed on the polishing frame 5 and is power-connected with the roller 8;

[0029] The two ends of the roller 29 installed in the base 1 are connected with the two drive bases 2 respectively, the two roller supports 3 are supported at the two ends of the roller 29, the outer end surface of the abrasive belt 9 is in contact with the outer surface of the roller 29, the moving base 10 located at the lower end of the grinding machine box 4 is installed on the base 1, the rotating lead screw 11 connected with the moving base 10 is installed between the two drive bases 2, the power mechanism capable of driving the grinding machine box 4 to move forward and backward is installed in the moving base 10 and connected with the grinding machine box 4, and the dust collecting mechanism close to the abrasive belt 9 is installed on the grinding machine box 4.

[0030] In the initial state, the three rollers 8 make the abrasive belt 9 in a taut state, the area of the abrasive belt 9 close to the roller 29 is a vertical plane, the contact area of the abrasive belt 9 with the roller 29 is small, which is convenient for controlling and adjusting the polishing precision, if the moving seat 6 drives the roller frame 7 to move on the polishing frame 5 towards the direction close to the roller 29, the distance between the roller 8 on the roller frame 7 and the other two rollers 8 is shortened, so that the abrasive belt 9 is in a relaxed state, then the grinding machine box 4 is controlled to move close to the roller 29, so that the area of the abrasive belt 9 close to the roller 29 is tightly attached to the surface of the roller 29 and forms a circular arc with the roller 29, and the abrasive belt 9 is also in a taut state, which can maintain effective polishing function, and the contact area of the abrasive belt 9 with the roller 29 is increased, so that the polishing efficiency is increased.

[0031] As shown in Figure 6 , the spring 12 is installed between the inside of the moving seat 6 and the roller frame 7, the pressure sensor 13 in contact with the roller frame 7 is installed in the moving seat 6, and the hydraulic push rod 15 connected with the moving seat 6 is installed on the polishing frame 5.

[0032] In the process of controlling the moving seat 6 to move so that the abrasive belt 9 is tightly attached to the surface of the roller 29 in a large area, the abrasive belt 9 changes from the relaxed state to the taut state again, the abrasive belt 9 applies a force to the roller 8 on the roller frame 7 towards the roller 8 on the polishing frame 5, so that the value of the pressure sensor 13 changes, which is convenient for personnel to observe whether the abrasive belt 9 is in a taut state with effective polishing function, in addition, if the abrasive belt 9 breaks, according to the value change of the pressure sensor 13, the function of automatically stopping the rotation of the roller 8 by the control motor 17 can be realized, and the spring 12 is arranged to make the pressure received by the pressure sensor 13 be in an appropriate range, so as to reduce the probability of damage of the pressure sensor 13, and when the abrasive belt 9 breaks, the value change of the pressure sensor 13 is more rapid and intense, so as to avoid the occurrence of system misjudgment caused by small range value change.

[0033] As shown in Figure 4 and Figure 5As shown, the mobile seat 6 is installed with a limiting plate 14 on both sides, which is in contact with the outer wall of the polishing frame 5. Under the action of the limiting plate 14, the mobile seat 6 can only move in the front and back directions in the polishing frame 5. The polishing frame 5 is installed with a positioning plate 16 on both sides, which is in contact with the side surface of the sand belt 9. The detachable positioning plate 16 not only enables the sand belt 9 to move stably on the polishing frame 5, but also facilitates the replacement of the sand belt 9.

[0034] As shown in Figure 2 and Figure 8 As shown, the dust collection mechanism includes an outer case 20 installed on the side of the sander box 4. The outer case 20 is provided with a ventilation cavity 21. The ventilation cavity 21 is installed with a baffle 22 close to the polishing frame 5. The front end of the ventilation cavity 21 is towards the base 1. The rear end of the ventilation cavity 21 is provided with a negative pressure dust collection device 23. The negative pressure dust collection device 23 extracts the dust and debris generated during the polishing process.

[0035] The outer case 20 is installed with a moving plate 24 in the middle of the ventilation cavity 21. The baffle 22 is provided with a through slot. The moving plate 24 is connected with the mobile seat 6 through the through slot. The moving plate 24 is rotatably connected with a partition plate 25 at both ends. The inner wall of the ventilation cavity 21 is provided with a limiting slot 26 extending vertically. The top end of the partition plate 25 is installed with a limiting rod connected with the limiting slot 26. The middle of the moving plate 24 is provided with a ventilation slot 27. The moving plate 24 and the negative pressure dust collection device 23 are installed with an extension air pipe 28.

[0036] Under the cooperation of the moving plate 24 and the partition plate 25, the negative pressure airflow generated by the negative pressure dust collection device 23 will flow in the area between the two moving plates 24. When the moving plate 24 moves towards the roller 29, the distance between the top ends of the two partition plates 25 increases. When the moving plate 24 moves away from the roller 29, the distance between the top ends of the two partition plates 25 decreases. Under the condition that the power of the negative pressure dust collection device 23 remains unchanged, by changing the space size of the area between the two partition plates 25, the function of adjusting the wind force of the negative pressure airflow is achieved. Since the moving plate 24 is connected with the mobile seat 6, when the sand belt 9 is in a vertical plane state close to the roller 29, the polishing range is small, the two partition plates 25 are close, the negative pressure airflow wind force increases and is close to the polishing area. When the sand belt 9 is in a state of closely adhering to the surface of the roller 29 and following the roller 29 in a circular arc shape, the polishing range is large, the two partition plates 25 are far away, the negative pressure airflow range increases and covers a large range of polishing area.

[0037] The above is only a preferred embodiment of the present application, which does not limit the present application in any form. Any simple modification or equivalent change made according to the technical essence of the present application to the above embodiment falls within the protection scope of the present application.

Claims

1. A high-precision roll grinding device, comprising a base (1) and drive seats (2) respectively installed at the left and right ends of the base (1), and a roll support (3) installed on the base (1), characterized in that: A grinding machine box (4) and a grinding frame (5) are installed on the front side of the base (1). A sliding seat (6) and a roller frame (7) connected to the sliding seat (6) are installed on the front end of the grinding frame (5). Rollers (8) are installed on the upper and lower sides of the rear end of the grinding frame (5) and the front end of the roller frame (7). A sanding belt (9) is sleeved between the three rollers (8). A movable base (10) located at the lower end of the grinding machine box (4) is installed on the base (1). A rotating screw (11) connected to the movable base (10) is installed between the two drive seats (2). A power mechanism connected to the grinding machine box (4) and capable of driving the grinding machine box (4) to move back and forth is installed in the movable base (10). A dust collection mechanism close to the sanding belt (9) is installed on the grinding machine box (4). A spring (12) is installed between the inside of the movable seat (6) and the roller frame (7), and a pressure sensor (13) that contacts the roller frame (7) is installed inside the movable seat (6). The dust collection mechanism includes an outer casing (20) installed on the side of the grinding machine casing (4), a ventilation chamber (21) is provided inside the outer casing (20), a baffle (22) is installed in the ventilation chamber (21) near the grinding frame (5), the front end of the ventilation chamber (21) faces the base (1), and a negative pressure dust collection device (23) is located at the rear end of the ventilation chamber (21). The outer casing (20) is equipped with a movable plate (24) located in the middle of the ventilation cavity (21). A through groove is provided on the baffle (22). The side of the movable plate (24) passes through the through groove and is connected to the movable seat (6). The upper and lower ends of the movable plate (24) are respectively rotatably connected to the partition (25). The inner wall of the ventilation cavity (21) is provided with a vertically extending limiting groove (26). The top of the partition (25) is equipped with a limiting rod connected to the limiting groove (26). A ventilation groove (27) is provided in the middle of the movable plate (24). A telescopic air duct (28) is installed between the movable plate (24) and the negative pressure dust collection device (23).

2. The high-precision roll grinding equipment according to claim 1, characterized in that: The movable seat (6) is equipped with limiting plates (14) that abut against the outer wall of the grinding frame (5) at its left and right ends respectively.

3. The high-precision roll grinding equipment according to claim 1, characterized in that: The grinding frame (5) is equipped with a hydraulic push rod (15) that is connected to the movable seat (6).

4. The high-precision roll grinding equipment according to claim 1, characterized in that: The grinding frame (5) is equipped with positioning plates (16) at its left and right ends, which are in contact with the sides of the sanding belt (9).

5. The high-precision roll grinding equipment according to claim 1, characterized in that: One of the rollers (8) on the grinding frame (5) is a drive wheel that drives the sanding belt (9) to move. The grinding frame (5) is equipped with an electric motor (17) that is powered by the roller (8).

6. The high-precision roll grinding equipment according to claim 1, characterized in that: The grinding machine housing (4) is provided with a first connecting plate (18), and the grinding frame (5) is provided with a second connecting plate (19). The second connecting plate (19) is fixedly connected to the first connecting plate (18) by bolts.

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