A roll brush polishing machine for sheet metal processing

Abstract

This invention discloses a roller brush polishing machine for sheet metal processing, comprising a machine body, a frame, and a conveyor belt with transmission mounted on the top surface of the machine body. A sliding plate is slidably mounted on the top surface of the frame, and a clamping and shifting mechanism is mounted on the bottom surface of the sliding plate. A brush roller is rotatably mounted on the top surface of the conveyor belt. The brush roller is composed of several brush blocks sequentially spliced ​​along the axial direction. This invention relates to the field of sheet metal processing technology. This roller brush polishing machine for sheet metal processing adopts segmented brush blocks and a clamping and shifting structure, which can automatically transfer the brush blocks at the two ends with faster wear and greater bristle loss to the middle grinding area with less load. At the same time, the middle brush blocks with less wear are rotated to the high-load positions at both ends. The bristle wear rate of each brush block tends to be consistent, avoiding the phenomenon of "premature aging at both ends and intact in the middle" in integrated brush rollers, making full use of the remaining service life of the brush blocks and extending the service life of the entire grinding roller brush set.

Description

Technical Field

[0001] This invention relates to the field of sheet metal processing technology, specifically to a roller brush polishing machine for sheet metal processing. Background Technology

[0002] Sheet metal workpieces are made from thin metal sheets / coils / flat sheets. Without relying on a large amount of cutting to remove material, the shape of the sheet is mainly changed by plastic deformation, supplemented by a small amount of cutting and opening, to obtain thin-walled metal parts with specific shapes, strengths and installation interfaces.

[0003] Roller brush polishing machines are commonly used in the processing of sheet metal workpieces to grind and polish their surfaces. Currently, roller brushes on the market are one-piece, non-separable structures. However, due to factors such as impacts from the edges and corners of the workpiece, insufficient clearance for the brush bristles at both ends, and the accumulation of iron filings at both ends, the wear rate of the brush bristles at the left and right ends is significantly greater than that in the middle area. As a result, the entire roller brush must be scrapped and replaced, and the intact middle section of the brush bristles is discarded, leading to high material costs and significant waste. Existing one-piece roller brushes lack the technical means to actively balance axial wear, making it difficult to transfer the severely worn end parts to the less loaded middle grinding area. Therefore, the problem of uneven wear cannot be solved at its root.

[0004] Therefore, in view of the above-mentioned shortcomings, the present invention makes the following improvements. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a roller brush polishing machine for sheet metal processing, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a roller brush polishing machine for sheet metal processing, comprising a machine body, a frame, and a conveyor belt with transmission disposed on the top surface of the machine body. A sliding plate is slidably disposed on the top surface of the frame, and a clamping and shifting mechanism is disposed on the bottom surface of the sliding plate. A brush roller is rotatably disposed on the top surface of the conveyor belt. The brush roller is composed of several brush blocks sequentially spliced ​​along the axial direction, and the end faces of adjacent brush blocks are interlocked with each other. The brush block includes a central column, an outer ring of brush bristles, and abrasive brush bristles. Several buffer springs are provided between the outer wall of the central column and the inner wall of the outer ring of brush bristles, which are evenly arranged along the circumference and extend radially, so that the outer ring of brush bristles can float and retract radially on the central column. The clamping and repositioning mechanism includes a driving component and a clamping assembly. The clamping assembly clamps the brush blocks to disengage adjacent brush blocks from each other, and drives the brush blocks to move under the drive of the driving component, thereby completing the repositioning operation of brush blocks at different positions.

[0007] Preferably, a telescopic rod is fixedly installed on the outer wall of the central column, and two telescopic rods are provided. The two telescopic rods are arranged opposite each other at 180° along the circumference of the central column. The axis of the telescopic rod is along the radial direction of the brush roller, which is used to guide the radial floating motion of the outer ring of the brush bristles with the central column as the reference, and to restrict the circumferential deflection of the outer ring of the brush bristles.

[0008] Preferably, a first motor and a guide block are respectively provided at both ends of the brush roller. A limit block is fixedly provided at the output end of the first motor. A plurality of insertion rods are provided on one side of the limit block and the guide block and at one end of the central column. An insertion hole adapted to the insertion rods is opened at the other end of the central column.

[0009] Preferably, the top surface of the machine body is provided with a first electric slide rail and a second electric slide rail, respectively located on the front and back sides of the conveyor belt. A first hydraulic cylinder is slidably arranged on the top surface of the first electric slide rail, and a second hydraulic cylinder is slidably arranged on the top surface of the second electric slide rail. The extended ends of the first and second hydraulic cylinders are fixedly connected to the bottom of the first motor and the guide block, respectively.

[0010] Preferably, the clamping assembly includes a limiting plate disposed on the bottom surface of the sliding plate, and the limiting plate has two movable grooves inside. A clamping plate is disposed inside the movable groove by a clamping spring, and an arc-shaped groove adapted to the central column is disposed on one side of the clamping plate. The arc-shaped groove is provided with anti-slip texture. An electromagnet is fixedly disposed on one side of the inner wall of the movable groove, and an iron block is disposed on the side of the clamping plate near the electromagnet.

[0011] Preferably, the driving component includes vertical plates fixedly disposed on both sides of the bottom of the sliding plate, and threaded rods are rotatably disposed on the side of the two vertical plates that are close to each other. The threads on the surfaces of the two threaded rods are in opposite directions. A movable plate is threadedly connected to the surface of the threaded rods, and a double-rod hydraulic cylinder is fixedly disposed at the bottom of one side of the movable plate. The two protruding ends of the double-rod hydraulic cylinder are fixedly connected to one side of the limiting plate through L-shaped rods.

[0012] Preferably, a connecting rod is fixedly provided between one end of the two threaded rods, and a first pulley is fixedly provided on the surface of the connecting rod. A second motor is fixedly provided on the top surface of the sliding plate, and a second pulley is fixedly provided at the output end of the second motor. The surface of the second pulley is connected to the surface of the first pulley via a belt.

[0013] Preferably, the top surface of the frame is provided with a fixing groove, and a transverse electric slide rail is fixedly installed inside the fixing groove. The surface of the transverse electric slide rail is fixedly connected to the surface of the sliding plate through a slider.

[0014] Beneficial effects

[0015] This invention provides a roller brush polishing machine for sheet metal processing. Compared with the prior art, it has the following advantages:

[0016] (1) The present invention adopts segmented brush blocks and clamping and repositioning structure, which can automatically transfer the two end brush blocks with faster wear and greater brush filament loss to the middle grinding area with less load, while rotating the middle brush block with less wear to the two end high load positions. The brush filament wear rate of each brush block tends to be consistent, avoiding the phenomenon of "premature aging at both ends and intact in the middle" of the integrated brush roller, making full use of the remaining service life of the brush blocks and extending the service life of the entire grinding roller brush.

[0017] (2) By adding a buffer spring and telescopic rod inside the brush head, each section of the brush block is equipped with independent radial floating compensation. When there is a difference in the height of the brush bristles, the grinding pressure can be adjusted adaptively by the elastic structure, without the need to compensate for the end wear by increasing the overall pressing depth of the roller brush. Attached Figure Description

[0018] Figure 1 This is a perspective view of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the clamping and shifting mechanism of the present invention;

[0020] Figure 3 This is a cross-sectional view of the brush head structure of the present invention;

[0021] Figure 4 For the present invention Figure 1 A magnified view of a section at point A in the middle;

[0022] Figure 5 This is a schematic diagram of the structure of the brush roller of the present invention.

[0023] In the diagram: 1. Machine body; 2. Frame; 3. Conveyor belt; 4. Sliding plate; 5. Clamping and shifting mechanism; 51. Limiting plate; 52. Clamping spring; 53. Clamping plate; 54. Electromagnet; 55. Iron block; 56. Threaded rod; 57. Movable plate; 58. Double-rod hydraulic cylinder; 59. Connecting rod; 510. First pulley; 511. Second motor; 512. Second pulley; 6. Brush block; 61. Central column; 62. Brush bristle outer ring; 63. Abrasive brush bristles; 64. Buffer spring; 65. Telescopic rod; 7. First motor; 8. Guide block; 9. Insertion rod; 10. Insertion hole; 11. First hydraulic cylinder; 12. Second hydraulic cylinder. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of this protection.

[0025] Example 1

[0026] Please see Figures 1 to 5 As shown, the system includes a body 1, a frame 2, and a conveyor belt 3 mounted on the top surface of the body 1. A sliding plate 4 is slidably mounted on the top surface of the frame 2. A fixing groove is formed on the top surface of the frame 2, and a transverse electric slide rail is fixedly mounted inside the fixing groove. The surface of the transverse electric slide rail is fixedly connected to the surface of the sliding plate 4 via a slider. A clamping and shifting mechanism 5 is provided on the bottom surface of the sliding plate 4. Brush rollers are rotatably mounted on the top surface of the conveyor belt 3. In this embodiment, three brush rollers are provided. Each brush roller is formed by sequentially splicing several brush blocks 6 along the axial direction. In this embodiment, four brush blocks 6 are provided, with the end faces of adjacent brush blocks 6 interlocking. The two ends of each brush roller are respectively provided with… The machine body 1 has a first motor 7 and a guide block 8. The top surface of the machine body 1, which is located on the front and back of the conveyor belt 3, is provided with a first electric slide rail and a second electric slide rail. A first hydraulic cylinder 11 is slidably arranged on the top surface of the first electric slide rail, and a second hydraulic cylinder 12 is slidably arranged on the top surface of the second electric slide rail. The extended ends of the first hydraulic cylinder 11 and the second hydraulic cylinder 12 are fixedly connected to the bottom of the first motor 7 and the guide block 8, respectively. A limit block is fixedly arranged at the output end of the first motor 7. A plurality of insert rods 9 are provided on one side of the limit block and the guide block 8 and one end of the central column 61. The other end of the central column 61 is provided with an insertion hole 10 that is adapted to the insert rods 9.

[0027] The brush block 6 includes a central post 61, a bristle outer ring 62, and abrasive bristles 63. The bristle outer ring 62 is sleeved on the surface of the central post 61, and the abrasive bristles 63 are fixedly disposed on the surface of the bristle outer ring 62. A plurality of buffer springs 64 are provided between the outer wall of the central post 61 and the inner wall of the bristle outer ring 62, which are evenly arranged along the circumference and extend radially, so that the bristle outer ring can float and retract radially on the central post.

[0028] The clamping and repositioning mechanism 5 includes a driving component and a clamping assembly. The clamping assembly clamps the brush blocks 6 to disengage adjacent brush blocks 6 from each other, and drives the brush blocks 6 to move under the drive of the driving component, thereby completing the repositioning operation of brush blocks 6 at different positions.

[0029] The sheet metal workpiece is placed above the conveyor belt 3 and conveyed from left to right. During the conveying process, the first motor 7 is started, which drives the adjacent brush block 6 to rotate through the setting of the insertion rod 9 and the insertion hole 10. At this time, all the brush blocks 6 that are inserted and matched rotate synchronously. The rotation of the brush roller can polish the surface of the workpiece.

[0030] After the brush roller has been used for a period of time, the left and right ends of the brush roller wear faster, while the middle wears slower, resulting in a bulging middle and concave ends. At this time, the clamping and repositioning mechanism 5 is used to move the brush blocks 6 that were originally located at both ends of the brush roller to the middle position, while the brush blocks 6 that were originally located in the middle position of the brush roller are moved to both ends. This is to achieve balanced utilization of the lifespan of all brush blocks 6 and reduce economic costs.

[0031] Example 2

[0032] Based on Example 1, see Figures 1 to 5 As shown, a telescopic rod 65 is fixedly installed on the outer wall of the central column 61, and two telescopic rods 65 are provided. The two telescopic rods 65 are arranged opposite each other at 180° around the central column 61. The axis of the telescopic rod 65 is along the radial direction of the brush roller and is used to guide the radial floating motion of the outer ring of the brush bristles 62 with the central column 61 as the reference, and to restrict the outer ring of the brush bristles 62 from circumferential deflection.

[0033] By setting several buffer springs 64, the grinding pressure applied to the sheet metal workpiece by the abrasive brush filaments 63 on each brush block 6 can be made more consistent. The buffer springs 64 and the telescopic rods 65 are parallel to each other and arranged radially. The buffer springs 64 provide elastic force, while the telescopic rods 65 only serve as guides and prevent deflection, and do not bear the elastic force.

[0034] Example 3

[0035] Based on Example 2, see Figures 1 to 5As shown, the clamping assembly includes a limiting plate 51 disposed on the bottom surface of the sliding plate 4, and the limiting plate 51 has two movable grooves inside. A clamping plate 53 is disposed inside the movable groove via a clamping spring 52. One side of the clamping plate 53 has an arc-shaped groove adapted to the central column 61, and the arc-shaped groove has anti-slip textures. An electromagnet 54 is fixedly disposed on one side of the inner wall of the movable groove. An iron block 55 is correspondingly disposed on the side of the clamping plate 53 near the electromagnet 54. The driving component includes vertical plates fixedly disposed on both sides of the bottom of the sliding plate 4, and threaded rods 56 are rotatably disposed on one side of each of the two vertical plates. The threads on the surfaces of the two threaded rods 56 are in opposite directions. A movable plate 57 is threadedly connected to the surface of the threaded rod 56. Double-rod hydraulic cylinders 58 are fixedly installed on the bottom of one side of the movable plate 57 via connecting blocks. The top of the movable plate 57 is slidably installed on the bottom of the sliding plate 4 via a protrusion. The bottom of the sliding plate 4 has a groove that matches the protrusion. The protrusion is slidably installed inside the groove. The two protruding ends of the double-rod hydraulic cylinders 58 are fixedly connected to one side of the limiting plate 51 via L-shaped rods. A connecting rod 59 is fixedly installed between one end of the two threaded rods 56. A first pulley 510 is fixedly installed on the surface of the connecting rod 59. A second motor 511 is fixedly installed on the top surface of the sliding plate 4. A second pulley 512 is fixedly installed at the output end of the second motor 511. The surface of the second pulley 512 is connected to the surface of the first pulley 510 via a belt.

[0036] Specifically, when it is necessary to move the position of the brush block 6, the transverse electric slide rail is activated in advance, so that the transverse electric slide rail drives the sliding plate 4 to move to the right along the fixed groove until it is directly above the brush roller to be processed.

[0037] Next, the brush roller to be processed is raised, that is, the first hydraulic cylinder 11 and the second hydraulic cylinder 12 are started, so that the first motor 7 and the guide block 8 rise synchronously until the brush roller rises between the limit plates 51 on the left and right sides. At this time, the second motor 511 is started, so that the second motor 511 drives the connecting rod 59 to rotate through the first pulley 510 and the second pulley 512. At this time, the threaded rod 56 fixed to the connecting rod 59 also rotates synchronously. Since the threads of the two threaded rods 56 are opposite, they can control the two movable plates 57 to move relative to each other during the rotation. The two double-rod hydraulic cylinders 58 move relative to each other synchronously until the arc groove on the clamping plate 53 is clamped onto the surface of the central column 61 on the corresponding brush block 6.

[0038] At this time, the clamping plates 53 on the two limiting plates 51 on the left side clamp the two brush blocks 6 at the ends respectively, while the clamping plates 53 on the two limiting plates 51 on the right side clamp the two brush blocks 6 in the middle. Taking one of the limiting plates 51 as an example, the electromagnet 54 inside its through groove is energized. The electromagnet 54 generates a magnetic attraction force that can attract the iron block 55. The iron block 55 then drives the clamping plate 53 to move in the direction of the electromagnet 54 until the iron block 55 contacts the surface of the electromagnet 54. Thus, the two clamping plates 53 can clamp and fix the brush block 6 clamped by it, further improving the stability of clamping. Similarly, the same operation is performed on the remaining limiting plates 51, so that each brush block 6 is limited and fixed by the two clamping plates 53.

[0039] Then, the first electric slide rail and the second electric slide rail are controlled to start, so that the first electric slide rail and the second electric slide rail drive the first motor 7 and the guide block 8 to slide in opposite directions, thereby causing the insert rod 9 on the limit block and the guide block 8 to disengage from the currently inserted brush block 6.

[0040] Then, control the first motor 7 to rotate in the opposite direction, so that the two movable plates 57 move away from each other to the initial position, which facilitates the subsequent replacement operation of the brush block 6. Then, control the two telescopic ends of the left double-rod hydraulic cylinder 58 to retract until the two limit plates 51 contact each other. At this time, the two brush blocks 6 that were originally located at both ends of the brush roller are moved to the middle position. Control the two extended ends of the right double-rod hydraulic cylinder 58 to extend, so that the two limit plates 51 move away from each other. At this time, the two brush blocks 6 that were originally located in the middle position of the brush roller are moved to the two ends position. Finally, control the double-rod hydraulic cylinder 58 to make the adjacent brush blocks 6 insert through the cooperation of the insertion rod 9 and the insertion hole 10, so as to complete the brush block 6 clamping and replacement operation.

[0041] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0042] The embodiments of the invention have been described in detail above, but the content described is only a preferred embodiment of the invention and should not be considered as limiting the scope of the invention. All equivalent changes and improvements made within the scope of this application should still fall within the patent coverage of this invention.

Claims

1. A roller brush polishing machine for sheet metal processing, comprising a machine body (1), a frame (2), and a conveyor belt (3) for transmission disposed on the top surface of the machine body (1), characterized in that: The top surface of the frame (2) is slidably provided with a sliding plate (4), and the bottom surface of the sliding plate (4) is provided with a clamping and shifting mechanism (5). The top surface of the conveyor belt (3) is rotatably provided with a brush roller. The brush roller is composed of several brush blocks (6) spliced ​​together along the axial direction. The end faces of two adjacent brush blocks (6) are interlocked. The brush block (6) includes a central column (61), a bristle outer ring (62), and abrasive bristles (63). A plurality of buffer springs (64) are provided between the outer wall of the central column (61) and the inner wall of the bristle outer ring (62) and are evenly arranged along the circumference and extend radially, so that the bristle outer ring (62) can float and retract radially on the central column (61). The clamping and repositioning mechanism (5) includes a driving component and a clamping assembly. The clamping assembly clamps the brush blocks (6) to disengage adjacent brush blocks (6) from each other, and drives the brush blocks (6) to move under the drive of the driving component, thereby completing the repositioning operation of brush blocks (6) at different positions.

2. The sheet metal processing roller brush polishing machine according to claim 1, characterized in that: A telescopic rod (65) is fixedly installed on the outer wall of the central column (61), and there are two telescopic rods (65). The two telescopic rods (65) are arranged opposite each other at 180° along the circumference of the central column (61). The axis of the telescopic rod (65) is along the radial direction of the brush roller and is used to guide the radial floating motion of the outer ring of the brush bristles (62) with the central column (61) as the reference, and to restrict the outer ring of the brush bristles from circumferentially deflecting.

3. The sheet metal processing roller brush polishing machine according to claim 1, characterized in that: The brush roller is provided with a first motor (7) and a guide block (8) at both ends. A limit block is fixedly provided at the output end of the first motor (7). A number of insertion rods (9) are provided on one side of the limit block and the guide block (8) and one end of the central column (61). An insertion hole (10) adapted to the insertion rod (9) is opened at the other end of the central column (61).

4. The sheet metal processing roller brush polishing machine according to claim 1, characterized in that: The top surface of the machine body (1) and the front and back sides of the conveyor belt (3) are respectively provided with a first electric slide rail and a second electric slide rail. A first hydraulic cylinder (11) is slidably arranged on the top surface of the first electric slide rail, and a second hydraulic cylinder (12) is slidably arranged on the top surface of the second electric slide rail. The extended ends of the first hydraulic cylinder (11) and the second hydraulic cylinder (12) are respectively fixedly connected to the bottom of the first motor (7) and the guide block (8).

5. A roller brush polishing machine for sheet metal processing according to claim 1, characterized in that: The clamping assembly includes a limiting plate (51) disposed on the bottom surface of the sliding plate (4), and the limiting plate (51) has two movable grooves inside. The movable grooves are equipped with clamping plates (53) by clamping springs (52), and one side of the clamping plate (53) is provided with an arc-shaped groove that matches the central column (61). The arc-shaped groove is provided with anti-slip texture. An electromagnet (54) is fixedly disposed on one side of the inner wall of the movable groove, and an iron block (55) is disposed on the side of the clamping plate (53) close to the electromagnet (54).

6. A roller brush polishing machine for sheet metal processing according to claim 1, characterized in that: The driving component includes vertical plates fixedly disposed on both sides of the bottom of the sliding plate (4), and threaded rods (56) are rotatably disposed on the side of the two vertical plates that are close to each other. The threads on the surfaces of the two threaded rods (56) are opposite in direction. A movable plate (57) is threadedly connected to the surface of the threaded rods (56), and a double-rod hydraulic cylinder (58) is fixedly disposed at the bottom of one side of the movable plate (57). The two protruding ends of the double-rod hydraulic cylinder (58) are fixedly connected to one side of the limiting plate (51) through L-shaped rods.

7. A roller brush polishing machine for sheet metal processing according to claim 6, characterized in that: A connecting rod (59) is fixedly provided between one end of the two threaded rods (56), and a first pulley (510) is fixedly provided on the surface of the connecting rod (59). A second motor (511) is fixedly provided on the top surface of the sliding plate (4), and a second pulley (512) is fixedly provided at the output end of the second motor (511). The surface of the second pulley (512) is connected to the surface of the first pulley (510) by a belt.

8. A roller brush polishing machine for sheet metal processing according to claim 1, characterized in that: The top surface of the frame (2) is provided with a fixing groove, and a transverse electric slide rail is fixedly installed inside the fixing groove. The surface of the transverse electric slide rail is fixedly connected to the surface of the sliding plate (4) through a slider.

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