Automatic roll grinding and polishing machine
By designing an automatic grinding and polishing machine for rolling mills, components such as motors, lead screws, cylinders, and pneumatic clamps are used to achieve automated movement and clamping of rolling mills. The machine integrates multi-process polishing functions, which solves the problem of low efficiency of existing equipment, improves production efficiency, and avoids the quality risks of manual handling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG JINYE TECHNOLOGY CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-02
AI Technical Summary
Existing roll polishing equipment is inefficient, cannot automate multiple processes, and requires manual handling, resulting in low production efficiency and quality risks.
Design an automatic grinding and polishing machine for rolling mills. The machine uses components such as motors, lead screws, cylinders, and pneumatic clamps to achieve automated movement and clamping of rolling mills. It integrates multiple polishing functions into one unit, including a brush wheel, a rough grinding table, and an electric grinding machine.
The process of polishing the rolls has been fully automated, which has improved production efficiency, avoided the time wastage and quality risks associated with manual handling, and shortened the production cycle.
Smart Images

Figure CN224310232U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roll polishing technology, and in particular to an automatic roll grinding and polishing machine. Background Technology
[0002] Rolls are important components of rolling mills, used for metal rolling. They consist of the roll body, roll neck, and shaft end. The roll body directly contacts the metal and must be wear-resistant; the roll neck supports the roll; and the shaft end transmits power. Materials include cast iron and steel. Different rolls are selected for different rolling requirements, such as carbide rolls for cold rolling and cast steel rolls for hot rolling.
[0003] During long-term use, the surface of the rolls is prone to damage, thus requiring polishing. Currently, polishing is mostly done manually with handheld grinders, which is not only ineffective but also inefficient. Furthermore, existing polishing machines on the market often only perform single-grit grinding operations; to complete secondary grinding, the rolls must be manually moved to other types of grinders, further reducing work efficiency. Therefore, we propose an automatic roll grinding and polishing machine. Utility Model Content
[0004] The automatic grinding and polishing machine for rolls proposed in this utility model solves the problems existing in the prior art mentioned in the background section.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic roller grinding and polishing machine, comprising a worktable, a first motor disposed on one side of the worktable, and a first lead screw connected to the output end of the first motor, a sliding frame slidably connected to the outer side of the first lead screw, a second motor disposed at the top of one side of the sliding frame, a second lead screw connected to the output end of the second motor, a first slider connected to the outer side of the second lead screw, a first cylinder connected to one side of the first slider, a third motor disposed inside the pushing end of the first cylinder, a pneumatic clamp connected to the output end of the third motor, a roller feeding mechanism disposed on one side of the sliding frame, and a roller grinding and polishing mechanism disposed on the other side of the sliding frame.
[0006] Preferably, a guide rail is provided inside the sliding frame on the side opposite to the second lead screw, and a second slider is slidably connected to the outside of the guide rail. A second cylinder is connected to one side of the second slider, and a connection point is provided at the pushing end of the second cylinder.
[0007] Preferably, the roller grinding and polishing mechanism includes a first mounting groove, a second mounting groove and a third mounting groove. The first mounting groove is provided with multiple sets of brush wheels, and the bottom of the multiple sets of brush wheels is provided with a first waste bin.
[0008] Preferably, a rough grinding table is provided inside the second mounting slot, and a baffle is provided on the outside of the rough grinding table. A water tank is provided at the top of the workbench near the inside of the second mounting slot, and the water tank is connected to multiple sets of water spray pipes. The multiple sets of water spray pipes are located on the bottom side of the rough grinding table, and a second waste bin is provided on the bottom side of the water spray pipes.
[0009] Preferably, an electric grinder is installed inside the third mounting slot.
[0010] Preferably, the roll feeding mechanism includes a feeding platform, and the bottom of the feeding platform is provided with a feeding port, and multiple auxiliary platforms are correspondingly provided below the feeding port.
[0011] Preferably, the pneumatic clamp is provided with an anti-slip pad on its inner side.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. The first motor, second motor, and third motor, together with the first lead screw, second lead screw, and cylinders, enable the automated movement and positioning of the sliding frame, slider, and pneumatic clamps. The entire process of rolling mill operation, from handling and clamping to grinding at each stage, can be completed without manual intervention, greatly improving production efficiency.
[0014] 2. Multiple processes are integrated into the same equipment, eliminating the need to transport the rolls to other grinding machines for secondary processing, thus avoiding time waste and quality risks caused by transportation and shortening the production cycle. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model.
[0016] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective.
[0017] Figure 3 This is a schematic diagram of the sliding frame structure of this utility model.
[0018] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.
[0019] Figure 5 This is a schematic diagram of the sliding frame of this utility model from another perspective.
[0020] Figure 6 This is a schematic diagram of the bottom structure of the feed inlet of this utility model.
[0021] Figure 7 This is a schematic diagram of the internal structure of the second mounting slot of this utility model.
[0022] The following are the labels in the diagram: 1. Workbench; 2. First motor; 3. First lead screw; 4. Sliding frame; 5. Second motor; 6. Second lead screw; 7. First slider; 8. First cylinder; 9. Third motor; 10. Pneumatic clamp; 11. Anti-slip mat; 12. Guide rail; 13. Second slider; 14. Second cylinder; 15. Connection; 16. First mounting slot; 17. Brush wheel; 18. Second mounting slot; 19. Rough grinding table; 20. Baffle; 21. Water spray pipe; 22. Water tank; 23. Third mounting slot; 24. Electric grinder; 25. Feeding platform; 26. Feed inlet; 27. Auxiliary table; 28. First waste bin; 29. Second waste bin. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Reference Figures 1-7 This utility model provides a technical solution: an automatic grinding and polishing machine for rolls, including a worktable 1. A first motor 2 is arranged on one side of the worktable 1, and a first lead screw 3 is connected to the output end of the first motor 2. A sliding frame 4 is slidably connected to the outside of the first lead screw 3, and a second motor 5 is arranged at the top of one side of the sliding frame 4. A second lead screw 6 is connected to the output end of the second motor 5, and a first slider 7 is connected to the outside of the second lead screw 6. A first cylinder 8 is connected to one side of the first slider 7, and a third motor 9 is arranged inside the pushing end of the first cylinder 8. A pneumatic clamp is connected to the output end of the third motor 9. 10. A roller feeding mechanism is provided on one side of the sliding frame 4, and a roller grinding and polishing mechanism is provided on the other side of the sliding frame 4; a guide rail 12 is provided inside the sliding frame 4 on the side opposite to the second lead screw 6, and a second slider 13 is slidably connected to the outside of the guide rail 12. A second cylinder 14 is connected to one side of the second slider 13, and a connection 15 is provided at the pushing end of the second cylinder 14; the roller feeding mechanism includes a feeding platform 25, and an inlet 26 is opened at the bottom of the feeding platform 25. Multiple sets of auxiliary platforms 27 are correspondingly provided below the inlet 26; an anti-slip pad 11 is provided on the inner side of the pneumatic clamp 10.
[0025] In practice, during the roller clamping and moving operation, the roller to be polished is first manually placed into the loading platform 25. The roller then enters the auxiliary platform 27 via the inlet 26 of the loading platform 25. The auxiliary platform 27 ensures that the roller's shaft head is precisely engaged between the two sets of auxiliary platforms 27. At this point, the first motor 2 is started, its output driving the first lead screw 3 to rotate, driving the sliding frame 4 to move laterally along the worktable 1 until the sliding frame 4 aligns with the middle position of the two sets of auxiliary platforms 27. The second motor 5 is then started, driving the second lead screw 6 to rotate, causing the first slider 7 to slide up and down along the second lead screw 6. The vertical height of the first cylinder 8 and the pneumatic clamp 10 is adjusted so that the pneumatic clamp 10 is aligned with the vertical height of the worktable 10. The roller shafts in the auxiliary platform are aligned. The first cylinder 8 is activated, and its pushing end extends forward, driving the third motor 9 and the pneumatic clamp 10 to approach the roller. After the anti-slip pad 11 on the inner side of the pneumatic clamp 10 contacts the roller surface, the roller is clamped by the pneumatic system to ensure a stable clamping and prevent slippage. At the same time, the second cylinder 14 is activated, so that the connection 15 of its pushing end connects with the roller shaft on the other side. At this time, the fixing of the roller is completed. Then, the second motor 5 is activated to reverse, driving the first slider 7 to rise and driving the roller to rise. The second cylinder 14 connected to the other side of the roller also rises along the guide rail 12. The first motor 2 is then activated to transport the roller to the roller grinding and polishing mechanism.
[0026] Reference Figure 1 , Figure 2 , Figure 6 and Figure 7 The roller grinding and polishing mechanism includes a first mounting groove 16, a second mounting groove 18, and a third mounting groove 23. The first mounting groove 16 is equipped with multiple sets of brush wheels 17, and a first waste bin 28 is provided at the bottom of the multiple sets of brush wheels 17. The second mounting groove 18 is equipped with a rough grinding table 19, and a baffle 20 is provided on the outside of the rough grinding table 19. A water tank 22 is provided at the top of the worktable 1 near the interior of the second mounting groove 18, and the water tank 22 is connected to multiple sets of water spray pipes 21. The multiple sets of water spray pipes 21 are located on the bottom side of the rough grinding table 19, and a second waste bin 29 is provided on the bottom side of the water spray pipes 21. The third mounting groove 23 is equipped with an electric grinder 24.
[0027] In specific implementation, during the roller grinding and polishing work, the first motor 2 is started to drive the first lead screw 3, moving the sliding frame 4 laterally above the first mounting groove 16, so that the roller held by the pneumatic clamp 10 is aligned with the working area of the brush wheel 17. The second motor 5 drives the second lead screw 6 to control the first slider 7 to descend, adjusting the roller height so that the roller surface contacts the brush wheel 17. The rotation of the third motor 9 drives the roller to rotate, cleaning the roller surface and removing impurities such as hard particles and oxide scale. Impurities generated during the cleaning process fall into the first waste bin 28, keeping the working environment clean. After cleaning, the roller is raised to a certain height, and the first motor 2 moves the sliding frame 4 laterally above the second mounting groove 18. The roller is then adjusted to the side of the rough grinding table 19. The second motor 5 is used again to adjust the roller height so that the roller surface contacts the rough grinding table 19. At the same time, the third motor 9 drives the roller to rotate, and the baffle 20 remains in a circumferential state to prevent grinding debris from splashing. Through the rotation of the roller and its contact with the rough grinding table 19, the roller is cleaned and polished. The contact of the grinding table 19 performs preliminary grinding on the surface of the roll, removing deeper scratches or uneven surfaces. Simultaneously, the valve of the water tank 22 is opened, and cooling water is sprayed onto the bottom side of the rough grinding table 19 through the water spray pipe 21 to reduce the grinding temperature and suppress dust. The debris generated by rough grinding is guided by the baffle 20 to fall into the second waste waste box 29. The cooling water mixes with the debris and flows into the second waste waste box 29 for easy subsequent cleaning. After the rough grinding is completed, the roll is adjusted to the outside of the second mounting groove 18. At this time, the first motor 2 is started, which drives the sliding frame 4 to move laterally. Move the roller to the top of the electric grinding machine 24 in the third mounting slot 23, adjust the height of the roller to the inside of the electric grinding machine 24, start the electric grinding machine 24, and its internal grinding device performs fine grinding on the surface of the roller to improve the surface smoothness. The third motor 9 controls the roller to rotate at a uniform speed to ensure the uniformity of grinding. After grinding is completed, move the roller out of the third mounting slot 23 and move it to the unloading area on one side. By canceling the gripping work of the pneumatic clamp 10 and by retracting the second cylinder 14, the roller is released from the clamp and falls to the unloading area.
[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An automatic grinding and polishing machine for rolls, comprising a worktable (1), characterized in that, A first motor (2) is provided on one side of the workbench (1), and a first lead screw (3) is connected to the output end of the first motor (2). A sliding frame (4) is slidably connected to the outside of the first lead screw (3). A second motor (5) is provided at the top of one side of the sliding frame (4). A second lead screw (6) is connected to the output end of the second motor (5). A first slider (7) is connected to the outside of the second lead screw (6). A first cylinder (8) is connected to one side of the first slider (7). A third motor (9) is provided inside the pushing end of the first cylinder (8). A pneumatic clamp (10) is connected to the output end of the third motor (9). A roller feeding mechanism is provided on one side of the sliding frame (4), and a roller grinding and polishing mechanism is provided on the other side of the sliding frame (4).
2. The automatic grinding and polishing machine for rolls according to claim 1, characterized in that, The sliding frame (4) has a guide rail (12) on the side opposite to the second lead screw (6), and a second slider (13) is slidably connected to the outside of the guide rail (12). A second cylinder (14) is connected to one side of the second slider (13), and a connection point (15) is provided at the pushing end of the second cylinder (14).
3. The automatic grinding and polishing machine for rolls according to claim 1, characterized in that, The roller grinding and polishing mechanism includes a first mounting groove (16), a second mounting groove (18) and a third mounting groove (23). The first mounting groove (16) is provided with multiple sets of brush wheels (17), and the bottom of the multiple sets of brush wheels (17) is provided with a first waste bin (28).
4. The automatic grinding and polishing machine for rolls according to claim 3, characterized in that, The second mounting slot (18) is provided with a rough grinding table (19), and a baffle (20) is provided on the outside of the rough grinding table (19). A water tank (22) is provided near the top of the workbench (1) inside the second mounting slot (18), and the water tank (22) is connected to multiple sets of water spray pipes (21). The multiple sets of water spray pipes (21) are located on the bottom side of the rough grinding table (19), and a second waste bin (29) is provided on the bottom side of the water spray pipes (21).
5. The automatic grinding and polishing machine for rolls according to claim 3, characterized in that, An electric grinder (24) is installed inside the third mounting slot (23).
6. The automatic grinding and polishing machine for rolls according to claim 1, characterized in that, The rolling mill feeding mechanism includes a feeding platform (25), and the bottom of the feeding platform (25) is provided with a feeding port (26), and multiple auxiliary platforms (27) are provided below the feeding port (26).
7. The automatic grinding and polishing machine for rolls according to claim 1, characterized in that, The pneumatic clamp (10) is provided with an anti-slip pad (11) on its inner side.