Oxide skin removing structure for hot die forging press
By using a hydraulically driven sliding scraper and rotating cleaning plate structure, the problem of low oxide scale removal efficiency in hot forging presses is solved, achieving efficient oxide scale removal and collection, and improving forging quality and cleaning efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN JINNIU MACHINERY EQUIPMENT MANUFACTURING CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-19
AI Technical Summary
Existing hot forging presses have complex oxide scale removal structures, low efficiency, and scrapers may obstruct the approach of the upper and lower dies, affecting forging quality and cleaning efficiency.
The structure employs a hydraulically driven sliding scraper and rotating cleaning plate, combined with gear meshing and slide rail design, to achieve automatic scraping and collection of oxide scale, simplifying the operation process.
It improves the efficiency of oxide scale removal, simplifies the operation process, avoids the obstruction of the scraper to the mold, and improves the quality of forgings and cleaning speed.
Smart Images

Figure CN224253612U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hot forging press technology, specifically to an oxide scale removal structure for hot forging presses. Background Technology
[0002] When a hot forging press is in use, the oxide scale that forms on the surface of the steel billet is hard. If it is not removed, it will be carried into the interior of the forging, forming visible pits that seriously affect the quality and surface smoothness of the forging.
[0003] Application No. 202420903082.X discloses an oxide scale removal structure for a hot forging press. A fixing plate is bolted to one side of the hot forging press body. A motor operates, driving a sliding sleeve to move. A spring pushes scrapers No. 1 and No. 2 upwards, allowing the lower surface of scraper No. 1 to scrape over the lower die and the upper surface of scraper No. 2 to scrape over the upper die. Scraper No. 2 first contacts the upper die, scraping the oxide scale onto the surface of the lower die. Then, scraper No. 1 scrapes the oxide scale uniformly into the guide hopper. This scraping assembly removes residual oxide scale from the surface of the hot forging press body, preventing unevenness on the forging surface of the steel billet caused by oxide scale accumulation, improving the forging quality of the steel billet, and replacing manual oxide scale removal, thus simplifying the cleaning process.
[0004] The oxide scale removal structure of the above application is relatively complex, requiring the cooperation of a lead screw, multiple sets of springs, and a sliding structure, resulting in low efficiency. Furthermore, the springs have limited deformation capabilities, and the scraper itself can hinder the approach of the upper and lower grinding molds. Utility Model Content
[0005] To address the shortcomings of existing technologies, this invention provides a scale removal structure for hot forging presses, solving the problems mentioned in the background section.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a scale removal structure for a hot forging press, comprising a frame, a plurality of support rods mounted on the top of the frame, a support plate fixedly connected to the top of the plurality of support rods, a pressure plate sleeved on the outer side of the plurality of support rods, a hydraulic assembly mounted at the bottom of the support plate and between the plurality of support rods, the hydraulic assembly comprising a hydraulic rod, the pressure plate fixedly connected to the output end of the hydraulic rod, an upper die fixedly connected to the bottom of the pressure plate, a lower grinding die fixedly connected to the top of the frame and below the upper die, and a [missing information - likely a component or part] mounted on one side of the frame. The machine has a support frame with a sliding groove inside. A cleaning rod is slidably connected inside the sliding groove. Two scrapers are fixedly connected to one end of the cleaning rod. A material collection groove is opened inside the frame and on one side of the lower grinding die. Multiple teeth are fixedly connected to the top of the cleaning rod. A groove is opened inside the support frame and on the top of the sliding groove. A first rotating shaft is rotatably connected inside the groove. A first gear is installed on the outside of the first rotating shaft. The first gear meshes with multiple teeth. A first motor is installed on one side of the support frame. The output end of the first motor is fixedly connected to the first rotating shaft through a coupling.
[0007] Preferably, an annular slide rail is installed on the top of the frame and on the outside of the lower grinding tool. The annular slide rail has a convex sliding groove inside. A convex sliding ring is rotatably connected inside the convex sliding groove. A cleaning plate is fixedly connected to the side of the convex sliding ring near the lower grinding tool. An external toothed ring is installed on the outside of the convex sliding ring.
[0008] Preferably, a limiting groove is formed inside the annular slide rail and on one side of the convex sliding groove. A second rotating shaft is rotatably connected inside the limiting groove. A second gear is installed on the outside of the second rotating shaft. The second gear meshes with an external gear ring. A second motor is fixedly installed on the top of the annular slide rail. The output end of the second motor is fixedly connected to the second rotating shaft through a coupling.
[0009] Preferably, a control panel is mounted on the outer wall of the frame.
[0010] Preferably, a guide groove is provided inside the frame and at the bottom of the material collection trough, and a positioning groove is provided inside the frame and at the bottom of the guide groove. A support roller is installed inside the positioning groove, and a positioning component is sleeved on the outside of the support roller. A material collection frame is fixedly connected to one side of the positioning component, and an insertion hole that cooperates with the support roller is provided inside the positioning component.
[0011] Preferably, a filter screen is installed inside the collection trough.
[0012] Preferably, the two scrapers are respectively attached to the lower mold and the upper mold.
[0013] This utility model provides a structure for removing oxide scale in a hot forging press, which has the following beneficial effects:
[0014] 1. This oxide scale removal structure for hot forging presses uses a sliding scraper on the platform. Under the action of multiple sets of teeth on the cleaning rod meshing with the first gear in the support frame, the gear can be driven to rotate, which in turn moves the cleaning rod and scraper to automatically scrape off the oxide scale on the surface of the upper and lower dies. The structure is simple and easy to operate, which helps to improve efficiency. At the same time, the scraper can be removed from the frame to avoid obstructing the approach of the upper and lower dies.
[0015] 2. The oxide scale removal structure for hot forging presses uses a rotating cleaning plate on one side of the slide rail on the frame. The outer toothed ring on the inner slide ring meshes with the second gear, which facilitates the movement of the cleaning plate and pushes the oxide scale scraped off the frame into the collection trough for collection, thus accelerating the cleaning speed. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the internal structure of this utility model;
[0018] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;
[0019] Figure 4 This utility model Figure 2 Enlarged view at point B in the middle;
[0020] Figure 5 This is a partial structural diagram of the present invention.
[0021] In the diagram: 1. Frame; 2. Hydraulic assembly; 3. Support rod; 4. Pressure plate; 5. Lower mold; 6. Upper mold; 7. Support frame; 8. Slide groove; 9. Cleaning rod; 10. Scraper; 11. Collection trough; 12. Tooth; 13. Groove; 14. First rotating shaft; 15. First gear; 16. First motor; 17. Annular slide rail; 18. Convex sliding groove; 19. Convex slip ring; 20. Cleaning plate; 21. External toothed ring; 22. Limiting groove; 23. Second rotating shaft; 24. Second gear; 25. Second motor; 26. Guide trough; 27. Positioning groove; 28. Support roller; 29. Positioning component; 30. Collection frame; 31. Control panel; 32. Filter screen; 33. Insertion hole; 34. Support plate. Detailed Implementation
[0022] 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.
[0023] Please see Figures 1 to 5This utility model provides a technical solution: a scale removal structure for a hot forging press, comprising a frame 1, a plurality of support rods 3 mounted on the top of the frame 1, a support plate 34 fixedly connected to the top of the plurality of support rods 3, a pressure plate 4 sleeved on the outer side of the plurality of support rods 3, a hydraulic assembly 2 mounted at the bottom of the support plate 34 and between the plurality of support rods 3, the hydraulic assembly 2 including a hydraulic rod, the pressure plate 4 fixedly connected to the output end of the hydraulic rod, an upper mold 6 fixedly connected to the bottom of the pressure plate 4, and a lower grinding die 5 fixedly connected to the top of the frame 1 and below the upper mold 6. Under the action of the hydraulic assembly 2, the pressure plate 4 and the upper mold 6 are driven to rise and fall, facilitating the adjustment of the distance between the upper mold 6 and the lower grinding die 5, and extruding the forging. A support is mounted on one side of the frame 1. The support frame 7 has a sliding groove 8 inside, and a cleaning rod 9 is slidably connected inside the sliding groove 8. Two scrapers 10 are fixedly connected to one end of the cleaning rod 9. The two scrapers 10 are respectively in contact with the lower mold 5 and the upper mold 6. With the sliding of 9, 10 can scrape the surfaces of 5 and 6 as 9 moves. A material collection groove 11 is opened inside the frame 1 and on one side of the lower mold 5. A filter screen 32 is installed inside the material collection groove 11 to intercept the forging and prevent it from falling into the material collection groove 11. Multiple teeth 12 are fixedly connected to the top of the cleaning rod 9. A groove 13 is opened inside the support frame 7 and at the top of the sliding groove 8. A first rotating shaft 14 is rotatably connected inside the groove 13. A first gear 15 is installed on the outside of the first rotating shaft 14. The first gear 15 meshes with multiple teeth 12. A first motor 16 is installed on one side of the support frame 7. The output end of the first motor 16 is fixedly connected to the first rotating shaft 14 via a coupling. Through the meshing of the first gear 15 with the multiple teeth 12, the first gear 15 rotates, which pushes the cleaning rod 9 to move. The scraper 10 at one end of the cleaning rod 9 scrapes off the oxide scale on the surface of the lower grinding mold 5 and the upper mold 6. An annular slide rail 17 is installed on the top of the frame 1 and outside the lower grinding mold 5. The annular slide rail 17 has a convex sliding groove 18 inside. A convex sliding ring 19 is rotatably connected inside the convex sliding groove 18. A cleaning plate 20 is fixedly connected to the side of the convex sliding ring 19 near the lower grinding mold 5. An external toothed ring 21 is installed on the outside of the convex sliding ring 19. A limiting groove 22 is formed inside the slide rail 17 and on one side of the convex sliding groove 18. A second rotating shaft 23 is rotatably connected inside the limiting groove 22. A second gear 24 is installed on the outside of the second rotating shaft 23. The second gear 24 meshes with the external gear ring 21, causing the external gear ring 21 to rotate with the rotation of the second gear 24, driving the convex sliding ring 19 to rotate. The cleaning plate 20 then revolves and shifts, facilitating the scraping of oxide scale debris from the frame 1 into the collection trough 11, which helps improve the cleaning efficiency of the surface of the frame 1. A second motor 25 is fixedly installed on the top of the annular slide rail 17. The output end of the second motor 25 is fixedly connected to the second rotating shaft 23 through a coupling, providing power for the rotation of the second rotating shaft 23 and the second gear 24. A control panel 31 is installed on the outer wall of the frame 1.A guide trough 26 is provided inside the frame 1 at the bottom of the collection trough 11. A positioning groove 27 is provided inside the frame 1 at the bottom of the guide trough 26. A support roller 28 is installed inside the positioning groove 27. A positioning element 29 is sleeved on the outside of the support roller 28. A collection frame 30 is fixedly connected to one side of the positioning element 29 to facilitate the collection of scraped oxide scale debris. The positioning element 29 has an insertion hole 33 inside that mates with the support roller 28. This plug-in structure allows the positioning element 29 to be removed from the outside of the support roller 28, facilitating the installation and removal of the collection frame 30.
[0024] The first motor 16, the second motor 25, and the hydraulic components are all existing products, and all are controlled to open and close via a control panel.
[0025] In summary, this oxide scale removal structure for a hot forging press operates as follows: When the power is switched on, the first motor 16 drives the first rotating shaft 14 to rotate. Through the meshing of the first gear 15 on the outer side of the first rotating shaft 14 with multiple teeth 12 on the cleaning rod 9, and the sliding connection between the cleaning rod 9 and the inner slide groove 8 of the support frame 7, the first gear 15 pushes the cleaning rod 9 to move as the first rotating shaft 14 rotates. Two scrapers 10 at one end of the cleaning rod 9 contact the lower grinding wheel 5 and the upper mold 6 respectively, scraping off the oxide scale from the surfaces of the lower grinding wheel 5 and the upper mold 6 onto the frame 1. Then, the first motor 16 drives the first rotating shaft 14 and the first gear 15 to rotate in the opposite direction, causing the cleaning rod 9 and scrapers 10 to return to their original positions. Because a convex sliding ring 19 is rotatably connected in the convex sliding groove 18 inside the annular slide rail 17, and the annular slide rail... The rail 17 is located on the outside of the lower grinding mold 5 at the top of the frame 1. Therefore, the cleaning plate 20 on one side of the convex slip ring 19 is located between the lower grinding mold 5 and the annular rail 17. Under the action of the second gear 24 on the outside of the second rotating shaft 23 meshing with the outer toothed ring 21 on the outside of the convex slip ring 19, the second motor 25 drives the second gear 24 to rotate through the second rotating shaft 23, which can push the outer toothed ring 21 and the convex slip ring 19 to rotate. The cleaning plate 20 then revolves and moves cyclically on the frame 1, scraping the oxide scale debris into the collection trough 11 inside the frame 1. It is then discharged into the collection frame 30 by the guide trough 26. After completion, the collection frame 30 is slid upward to make the positioning part 29 on one side of the collection frame 30 disengage from the outside of the support roller 28 in the positioning groove 27. The positioning part 29 is then pulled out, and the collection frame 30 can be removed.
[0026] 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. A scale removal structure for a hot forging press, comprising a frame (1), characterized in that: Multiple support rods (3) are installed on the top of the frame (1). A support plate (34) is fixedly connected to the top of the multiple support rods (3). A pressure plate (4) is sleeved on the outside of the multiple support rods (3). A hydraulic assembly (2) is installed at the bottom of the support plate (34) and between the multiple support rods (3). The hydraulic assembly (2) includes a hydraulic rod. The pressure plate (4) is fixedly connected to the output end of the hydraulic rod. An upper mold (6) is fixedly connected to the bottom of the pressure plate (4). A lower grinding die (5) is fixedly connected to the top of the frame (1) and below the upper mold (6). A support frame (7) is installed on one side of the frame (1). A sliding groove (8) is opened inside the support frame (7). A sliding connection is slidably connected inside the sliding groove (8). A cleaning rod (9) is fixedly connected to two scrapers (10) at one end. A material collection groove (11) is provided inside the frame (1) and on one side of the lower grinding tool (5). Multiple teeth (12) are fixedly connected to the top of the cleaning rod (9). A groove (13) is provided inside the support frame (7) and on the top of the slide groove (8). A first rotating shaft (14) is rotatably connected inside the groove (13). A first gear (15) is installed on the outside of the first rotating shaft (14). The first gear (15) meshes with multiple teeth (12) respectively. A first motor (16) is installed on one side of the support frame (7). The output end of the first motor (16) is fixedly connected to the first rotating shaft (14) through a coupling.
2. The oxide scale removal structure for a hot forging press according to claim 1, characterized in that: An annular slide rail (17) is installed on the top of the frame (1) and on the outside of the lower grinding tool (5). A convex sliding groove (18) is provided inside the annular slide rail (17). A convex sliding ring (19) is rotatably connected inside the convex sliding groove (18). A cleaning plate (20) is fixedly connected to the side of the convex sliding ring (19) near the lower grinding tool (5). An external toothed ring (21) is installed on the outside of the convex sliding ring (19).
3. The oxide scale removal structure for a hot forging press according to claim 2, characterized in that: A limiting groove (22) is provided inside the annular slide rail (17) and on one side of the convex sliding groove (18). A second rotating shaft (23) is rotatably connected inside the limiting groove (22). A second gear (24) is installed on the outside of the second rotating shaft (23). The second gear (24) meshes with the external gear ring (21). A second motor (25) is fixedly installed on the top of the annular slide rail (17). The output end of the second motor (25) is fixedly connected to the second rotating shaft (23) through a coupling.
4. The oxide scale removal structure for a hot forging press according to claim 1, characterized in that: A control panel (31) is installed on the outer wall of the frame (1).
5. The oxide scale removal structure for a hot forging press according to claim 4, characterized in that: A guide groove (26) is provided inside the frame (1) and at the bottom of the collection trough (11). A positioning groove (27) is provided inside the frame (1) and at the bottom of the guide groove (26). A support roller (28) is installed inside the positioning groove (27). A positioning component (29) is sleeved on the outside of the support roller (28). A collection frame (30) is fixedly connected to one side of the positioning component (29). An insertion hole (33) that cooperates with the support roller (28) is provided inside the positioning component (29).
6. The oxide scale removal structure for a hot forging press according to claim 1, characterized in that: The inside of the collection tank (11) is equipped with a filter screen (32).
7. The oxide scale removal structure for a hot forging press according to claim 1, characterized in that: The two scrapers (10) are respectively attached to the lower grinding wheel (5) and the upper mold (6).