A polishing device for cold-rolled sheets

Abstract

The utility model belongs to cold-rolled plate processing technical field, specifically disclose a kind of polishing device for cold-rolled plate, including base, the base both sides are fixedly connected with support plate, the base lower end is provided with the expansion component for adjusting polishing width, the base lower end is provided with driving assembly, driving assembly is driven expansion component inside and is arranged in the driving roller of triangle, driven roller moves along specific track, and then the polishing surface of polishing band lower end is expanded, to this end, different specifications plate material are applicable, avoid the same polishing band to appear grinding or not enough to cover the situation, while ensuring that its tension is stable, avoid the problem such as local excessive polishing, impurity residue caused by tension fluctuation. And only through driving assembly drives triangle roller group to move along specific track can be completed, saves a lot of adjustment time, so that production line can quickly switch the processing of different width cold-rolled plate, greatly improves continuous production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of cold-rolled sheet processing technology, and specifically relates to a grinding device for cold-rolled sheets. Background Technology

[0002] In the field of cold-rolled sheet processing, specialized grinding equipment is often used to remove impurities such as oxide scale and burrs from the surface of the sheet. By making close contact between the grinding components and the surface to be processed of the cold-rolled sheet, the surface impurities are removed through friction, thereby meeting the basic requirements for surface flatness in subsequent stamping, welding and other processes of cold-rolled sheet processing.

[0003] In actual mass production of cold-rolled steel sheets, the same production line often needs to process sheets of different widths alternately. When using existing grinding equipment to process sheets of different specifications, the same grinding belt often misses or does not cover the affected areas. This not only results in incomplete removal of impurities such as oxide scale and burrs from the surface of the cold-rolled steel sheet, making it impossible for some areas to meet the surface flatness requirements of subsequent stamping, welding and other processes, but also requires additional rework and re-grinding, which indirectly prolongs the production cycle and disrupts the continuous processing rhythm. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a grinding device for cold-rolled steel sheets.

[0005] To achieve the above objectives, this utility model provides a grinding device for cold-rolled steel sheets, including a base, with support plates fixedly connected to both sides of the base. An expansion assembly for adjusting the grinding width is provided at the lower end of the base. A drive assembly is also provided at the lower end of the base. The expansion assembly includes a transmission plate disposed at the upper end of the base, with a drive motor fixedly mounted on the upper end of the transmission plate. A drive roller is rotatably connected to one side of the upper end of the transmission plate via a bearing, and the drive roller is fixedly connected to the output end of the drive motor. The expansion assembly also includes two bearing plates disposed at the upper end of the base. Each bearing plate has a placement groove at its upper end, and each bearing plate has two extrusion grooves corresponding to the placement groove.

[0006] In the above technical solution, the driving component further includes a servo motor fixedly installed on one side of the lower end of the base, a lead screw fixedly connected to the upper end of the servo motor, a first bevel gear fixedly connected to the lead screw near the lower end of the base, the upper end of the lead screw passing through the base, and the lead screw rotatably connected to the base.

[0007] In the above technical solution, the upper end of the base is fixedly connected to a protective chamber, the upper end of the lead screw is rotatably connected to the protective chamber, the transmission plate is threadedly connected to the lead screw, and the transmission plate is slidably connected to the protective chamber.

[0008] In the above technical solution, the driving assembly further includes a bidirectional lead screw rotatably connected to the lower end of the base. One end of the bidirectional lead screw is rotatably connected to a second bevel gear, which meshes with the first bevel gear. The outer wall of the bidirectional lead screw is threaded with two symmetrically arranged rectangular plates, and the upper end of each rectangular plate is fixedly connected with two extrusion shafts.

[0009] In the above technical solution, the upper end of the base is provided with a through groove corresponding to the extrusion shaft, the extrusion shaft passes through the through groove, the extrusion shaft passes through the extrusion groove, and the extrusion shaft is flush with the upper surface of the placement groove.

[0010] In the above technical solution, further, a driven roller is rotatably connected to one side of the upper end of each of the two bearing plates via a bearing, and a grinding belt is fitted on the outer wall of both the driving roller and the driven roller.

[0011] Compared with existing technologies, this invention has the following advantages: By driving the drive rollers and driven rollers arranged in a triangular pattern within the expansion assembly along a specific trajectory, the grinding surface at the lower end of the grinding belt is expanded. This allows for the application of different specifications of sheet metal, avoiding situations where the same grinding belt misses or is insufficiently covered. Simultaneously, it ensures stable tension, preventing problems such as localized over-grinding and impurity residue caused by tension fluctuations. Furthermore, this process can be completed simply by driving the triangular roller group along a specific trajectory using the drive assembly, saving significant adjustment time and allowing the production line to quickly switch between processing cold-rolled sheets of different widths, greatly improving continuous production efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the unexpanded structure proposed in this utility model; Figure 2 This is a schematic diagram of the expanded structure proposed in this utility model; Figure 3 This is a partial structural cross-sectional view of the present invention; Figure 4 This is a structural disassembly diagram of the present invention.

[0013] In the diagram: 1. Base, 2. Support plate, 3. Transmission plate, 4. Drive motor, 5. Drive roller, 6. Bearing plate, 7. Placement groove, 8. Extrusion groove, 9. Servo motor, 10. Lead screw, 11. First bevel gear, 12. Protective chamber, 13. Bidirectional lead screw, 14. Second bevel gear, 15. Rectangular plate, 16. Extrusion shaft, 17. Through groove, 18. Driven roller, 19. Grinding belt. Detailed Implementation To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0014] like Figures 1-4 A grinding device for cold-rolled steel sheets is shown, including a base 1, with support plates 2 fixedly connected to both sides of the base 1. An expansion assembly for adjusting the grinding width is provided at the lower end of the base 1, and a drive assembly is provided at the lower end of the base 1. The expansion assembly includes a transmission plate 3 provided at the upper end of the base 1, a drive motor 4 fixedly installed at the upper end of the transmission plate 3, and a drive roller 5 rotatably connected to one side of the upper end of the transmission plate 3 via a bearing. The drive roller 5 is fixedly connected to the output end of the drive motor 4. The expansion assembly also includes two bearing plates 6 provided at the upper end of the base 1. Each bearing plate 6 has a placement groove 7 at its upper end, and each bearing plate 6 has two extrusion grooves 8 corresponding to the placement groove 7. The drive assembly includes a servo motor 9 fixedly mounted on one side of the lower end of the base 1. A lead screw 10 is fixedly connected to the upper end of the servo motor 9. A first bevel gear 11 is fixedly connected to the lead screw 10 near the lower end of the base 1. The upper end of the lead screw 10 passes through the base 1 and is rotatably connected to the base 1. A protective chamber 12 is fixedly connected to the upper end of the base 1. The upper end of the lead screw 10 is rotatably connected to the protective chamber 12. A transmission plate 3 is threadedly connected to the lead screw 10 and slidably connected to the protective chamber 12. The drive assembly also includes a rotating connecting... A bidirectional lead screw 13 is attached to the lower end of the base 1. A second bevel gear 14 is rotatably connected to one end of the bidirectional lead screw 13. The second bevel gear 14 meshes with the first bevel gear 11. Two symmetrically arranged rectangular plates 15 are threaded to the outer wall of the bidirectional lead screw 13. Two extrusion shafts 16 are fixedly connected to the upper end of each rectangular plate 15. A through groove 17 is opened on the upper end of the base 1 corresponding to the extrusion shaft 16. The extrusion shaft 16 passes through the through groove 17 and the extrusion groove 8. The extrusion shaft 16 is flush with the upper surface of the placement groove 7. Both bearing plates 6 have a driven roller 18 rotatably connected to one side of the upper end via a bearing, and the drive roller 5 and the outer wall of the driven roller 18 are fitted with a grinding belt 19.

[0015] Working principle: Before use, start the servo motor 9. The output shaft of the servo motor 9 rotates, driving the lead screw 10 to rotate. When the lead screw 10 rotates, it synchronously drives the first bevel gear 11 fixed on its outer wall to rotate. At the same time, because the lead screw 10 is threadedly connected to the transmission plate 3, and the transmission plate 3 is slidably engaged with the protective chamber 12 fixed at the upper end of the base 1, the rotation of the lead screw 10 will drive the transmission plate 3 to slide up and down along the inner wall of the protective chamber 12. The lead screw 10 then drives the transmission plate 3 to slide up and down along the protective chamber 12, driving the drive motor 4 fixed at the upper end and the drive roller 5 connected by bearings to move up and down synchronously. The drive roller 5 and the driven roller 18 are fitted together with the grinding belt 19. The up and down movement of the drive roller 5 changes the vertical distance between it and the driven roller 18, thereby adjusting the tension of the grinding belt 19.

[0016] The lead screw 10 simultaneously drives the first bevel gear 11 to rotate, which in turn drives the second bevel gear 14 to rotate. The rotation of the second bevel gear 14 drives the bidirectional lead screw 13 to rotate. The rotation of the bidirectional lead screw 13 drives the two rectangular plates 15 to move symmetrically away from or towards each other along the axis of the bidirectional lead screw 13. When the rectangular plates 15 move, they drive the upper fixed extrusion shaft 16 to move synchronously. When the extrusion shaft 16 slides along the extrusion groove 8, it generates a lateral thrust on the support plate 6, pushing the two support plates 6 to move synchronously away from the upper end of the base 1. The movement of the support plate 6 drives the driven roller 18, which is connected to the upper end by a bearing, to move synchronously. The driven roller 18 and the drive roller 5 on the transmission plate 3 jointly support the grinding belt 19. The change in the spacing of the driven roller 18 causes the grinding belt 19 to stretch laterally, ultimately achieving the adjustment of the coverage width of the grinding belt 19.

[0017] The cold-rolled sheet to be polished is placed into the placement groove 7 opened at the upper end of the bearing plate 6. The placement groove 7 plays a limiting and constraining role for the cold-rolled sheet, preventing the cold-rolled sheet from shifting during the polishing process and ensuring that the polishing trajectory is consistent with the surface of the cold-rolled sheet.

[0018] Start the drive motor 4, and the output shaft of the drive motor 4 rotates to drive the drive roller 5 to rotate. Since the drive roller 5 and the driven roller 18 are fitted with the grinding belt 19, the rotation of the drive roller 5 drives the grinding belt 19 to move synchronously along the outer wall of the drive roller 5 and the driven roller 18. When the grinding belt 19 moves, its surface is in close contact with the surface of the cold-rolled plate to be ground in the placement groove 7. Through friction, impurities such as oxide scale, burrs, and scratches on the surface of the cold-rolled plate are removed, so as to achieve a smooth grinding of the surface of the cold-rolled plate.

[0019] After the cold-rolled sheet is polished, the drive motor 4 is turned off, the drive roller 5 stops rotating, and the polishing belt 19 and the driven roller 18 stop moving accordingly. The servo motor 9 is controlled to rotate in the opposite direction, which drives the lead screw 10 to rotate in the opposite direction. On the one hand, the reverse rotation of the lead screw 10 drives the transmission plate 3 to slide upward along the protective chamber 12, and synchronously drives the drive motor 4 and the drive roller 5 to reset to the initial height. On the other hand, the reverse rotation of the lead screw 10 drives the first bevel gear 11 to rotate in the opposite direction. The first bevel gear 11 drives the second bevel gear 14 and the bidirectional lead screw 13 to rotate in the opposite direction. The two rectangular plates 15 move closer symmetrically along the axis of the bidirectional lead screw 13. The rectangular plates 15 drive the extrusion shaft 16 to slide in the opposite direction along the extrusion groove 8, pushing the bearing plate 6 to reset to the initial spacing. The driven roller 18 resets with the bearing plate 6.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A grinding device for cold-rolled steel sheets, comprising a base (1), wherein support plates (2) are fixedly connected to both sides of the base (1), characterized in that, The base (1) is provided with an expansion component for adjusting the grinding width at the lower end. The base (1) is provided with a drive component at the lower end. The expansion component includes a transmission plate (3) provided at the upper end of the base (1). A drive motor (4) is fixedly installed at the upper end of the transmission plate (3). A drive roller (5) is rotatably connected to one side of the upper end of the transmission plate (3) through a bearing. The drive roller (5) is fixedly connected to the output end of the drive motor (4). The expansion component also includes two support plates (6) provided at the upper end of the base (1). Each support plate (6) has a placement groove (7) at its upper end. Each support plate (6) has two extrusion grooves (8) corresponding to the placement groove (7).

2. The grinding device for cold-rolled steel sheets according to claim 1, characterized in that, The drive assembly includes a servo motor (9) fixedly installed on one side of the lower end of the base (1). A lead screw (10) is fixedly connected to the upper end of the servo motor (9). A first bevel gear (11) is fixedly connected to the lower end of the lead screw (10) near the lower end of the base (1). The upper end of the lead screw (10) passes through the base (1), and the lead screw (10) is rotatably connected to the base (1).

3. A grinding device for cold-rolled steel sheets according to claim 2, characterized in that, The upper end of the base (1) is fixedly connected to the protective chamber (12), the upper end of the lead screw (10) is rotatably connected to the protective chamber (12), the transmission plate (3) is threadedly connected to the lead screw (10), and the transmission plate (3) is slidably connected to the protective chamber (12).

4. A grinding device for cold-rolled steel sheets according to claim 3, characterized in that, The drive assembly also includes a bidirectional lead screw (13) rotatably connected to the lower end of the base (1). One end of the bidirectional lead screw (13) is rotatably connected to a second bevel gear (14). The second bevel gear (14) meshes with the first bevel gear (11). The outer wall of the bidirectional lead screw (13) is threaded with two symmetrically arranged rectangular plates (15). Each rectangular plate (15) has two extrusion shafts (16) fixedly connected to its upper end.

5. A grinding device for cold-rolled steel sheets according to claim 4, characterized in that, The upper end of the base (1) is provided with a through groove (17) corresponding to the extrusion shaft (16), the extrusion shaft (16) passes through the through groove (17), the extrusion shaft (16) passes through the extrusion groove (8), and the extrusion shaft (16) is flush with the upper surface of the placement groove (7).

6. A grinding device for cold-rolled steel sheets according to claim 1, characterized in that, Both of the upper ends of the two bearing plates (6) are rotatably connected to a driven roller (18) via a bearing, and the outer walls of the driving roller (5) and the driven roller (18) are fitted with a grinding belt (19).

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