Shot peening equipment for cold work die steel surfaces
By using an electric slide table and a threaded rod-driven protective cover and rotary disc separation mechanism, the problems of cumbersome workpiece position adjustment and difficult shot splash recovery in cold work die steel surface shot peening equipment have been solved, achieving efficient shot peening and resource recycling, and improving production efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HUADONG SANHEXING MOULD MATERIAL CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-26
AI Technical Summary
Existing shot peening equipment for cold work die steel is cumbersome to adjust the workpiece position, and shot splashing and recovery are difficult, resulting in low production efficiency and increased costs.
The protective cover driven by an electric slide table encloses the shot peening space. Combined with the movement of the shot peening device driven by a threaded rod and a motor, it achieves precise shot peening of the workpiece surface. The shot and impurities are separated by a filter screen and a rotating disk, enabling efficient recovery and recycling.
It improves the uniformity and processing quality of shot peening, reduces shot wear, reduces production costs, and improves resource utilization.
Smart Images

Figure CN224274666U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal surface treatment technology, and more specifically, to a shot peening and strengthening equipment for cold work die steel surfaces. Background Technology
[0002] In the field of metal processing, cold work die steel is widely used in the manufacture of various molds. Its surface properties directly affect the service life and working efficiency of the molds. Shot peening, as a key technology to improve the surface properties of cold work die steel, has attracted much attention from the industry.
[0003] A search revealed that Chinese patent CN217453531U discloses a shot peening strengthening device for metal surface treatment. This device addresses the issue that most existing shot peening strengthening devices for metal surface treatment only have clamping structures that can hold the workpiece but cannot rotate it. When workers want to perform shot peening strengthening on the back of the workpiece, they must first disassemble and then clamp it again to adjust the workpiece's position, a cumbersome process that reduces the overall efficiency of the shot peening strengthening device. This new device, with its movable groove, lead screw, rotating shaft, turntable, auxiliary block, auxiliary rod, and fixed block, allows workers to easily adjust the angle of the workpiece according to their needs, achieving more comprehensive shot peening strengthening of the workpiece surface. Furthermore, this structure is more time-saving and labor-saving.
[0004] During the shot peening process, shot splatter is a prominent problem, resulting in shot waste and difficulty in shot recovery. Even if some equipment is equipped with a simple separation device, it is impossible to achieve efficient and precise separation of shot from impurities of different sizes. A large amount of recyclable shot is wasted, increasing production costs. Utility Model Content
[0005] In order to overcome the problems and defects in the prior art, this utility model provides a shot peening strengthening device for cold work die steel surface to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a shot peening strengthening device for cold work die steel surface, including a worktable, wherein a protective shot peening mechanism is provided on the top of the worktable;
[0007] The protective shot peening mechanism includes an electric slide table, which is fixedly installed on the top of the workbench. A protective cover is slidably connected to one side of the electric slide table. A transparent observation window is fixedly installed inside the protective cover. A shot tube is fixedly connected to the top of the protective cover. A telescopic hose is fixedly connected to the bottom of the shot tube. A shot peening device is fixedly connected to one end of the telescopic hose. A fixed shell is fixedly installed on the top of the protective cover. A first motor is fixedly installed on one side of the fixed shell. A threaded rod is fixedly connected to the output end of the first motor. A threaded sleeve is threadedly connected to the outside of the threaded rod. A connecting slide rod is fixedly connected to the bottom of the threaded sleeve. A shot recovery mechanism is provided at the bottom of the protective cover.
[0008] Preferably, the top surface of the protective cover is provided with a through groove, the through groove is slidably connected to the connecting slide rod, and the connecting slide rod is fixedly connected to the shot peening device.
[0009] Preferably, the projectile recovery mechanism includes a through groove, which is formed on the top surface of the workbench, and a filter screen is fixedly connected inside the through groove.
[0010] Preferably, a shot collection shell is fixedly connected to the bottom of the workbench, a filter screen is slidably connected inside the shot collection shell, and a spring is fixedly connected between the filter screen and the workbench.
[0011] Preferably, a second motor is fixedly installed on both sides of the projectile collecting shell, and a rotating disk is fixedly connected to the output end of the second motor. A rotating rod is hinged to one side of the rotating disk.
[0012] Preferably, the top of the rotating rod is hinged with a hinge post, and the hinge post is fixed to the top of the filter screen.
[0013] Preferably, the bottom of the projectile collecting shell is fixedly connected to a discharge pipe, and a valve is installed inside the discharge pipe.
[0014] The technical effects and advantages of this utility model are as follows:
[0015] 1. The protective cover is driven to fall by an electric slide table, forming a closed shot peening space, which effectively prevents shot from splashing and can fully separate shot from impurities of all sizes. The second motor drives the rotating disk, which, together with the rotating rod, hinge column and spring, makes the filter screen vibrate up and down, realizing the efficient separation of shot from fine impurities. The separated pure shot can be discharged through the discharge pipe and collected for reuse, which greatly reduces shot loss, reduces production costs and improves resource utilization.
[0016] 2. The first motor drives the threaded rod to rotate, which, together with the threaded sleeve, enables the shot peening device to move precisely in the horizontal direction. The shot peening position can be flexibly adjusted according to the different requirements of the cold work die steel workpiece, ensuring that all areas of the workpiece surface can receive uniform and effective shot peening strengthening treatment, significantly improving the shot peening strengthening effect and treatment quality. Through the transparent observation window, the operator can observe the shot peening effect in real time throughout the shot peening process, making it easy to adjust the shot peening parameters in a timely manner to ensure processing quality. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0018] Figure 2 This is a schematic diagram of the rear view structure of this utility model.
[0019] Figure 3 This is a partial sectional view of the side of the present invention.
[0020] Figure 4 This is a front cross-sectional view of the present invention.
[0021] Figure 5 This is a schematic diagram of the internal structure of the projectile collection shell of this utility model.
[0022] The attached diagram is labeled as follows: 1. Workbench; 2. Electric slide; 3. Protective cover; 4. Transparent observation window; 5. Shot tube; 6. Telescopic hose; 7. Shot peening device; 8. Fixed shell; 9. First motor; 10. Threaded rod; 11. Threaded sleeve; 12. Connecting slide rod; 13. Through groove; 14. Through groove; 15. Filter screen; 16. Shot collection shell; 17. Filter screen plate; 18. Spring; 19. Second motor; 20. Rotary disk; 21. Rotating rod; 22. Hinge column; 23. Discharge pipe; 24. Valve. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] As attached Figure 1-5 The shot peening equipment for strengthening the surface of cold work die steel shown includes a workbench 1, and a protective shot peening mechanism is provided on the top of the workbench 1.
[0025] The protective shot blasting mechanism includes an electric slide table 2, which is fixedly installed on the top of the workbench 1. A protective cover 3 is slidably connected to one side of the electric slide table 2. A transparent observation window 4 is fixedly installed inside the protective cover 3. A shot tube 5 is fixedly connected to the top of the protective cover 3. A telescopic hose 6 is fixedly connected to the bottom of the shot tube 5. A shot blaster 7 is fixedly connected to one end of the telescopic hose 6. A fixed housing 8 is fixedly installed on the top of the protective cover 3. A first motor 9 is fixedly installed on one side of the fixed housing 8. A threaded rod 10 is fixedly connected to the output end of the first motor 9. A threaded sleeve 11 is threadedly connected to the outside of the threaded rod 10. A connecting slide rod 12 is fixedly connected to the bottom of the threaded sleeve 11. A shot recovery mechanism is provided at the bottom of the protective cover 3.
[0026] As attached Figure 3 , 4 As shown, a through groove 13 is provided on the top surface of the protective cover 3. The through groove 13 is slidably connected to the connecting slide rod 12. The connecting slide rod 12 is fixedly connected to the shot peening device 7, so that the shot peening device 7 can move horizontally.
[0027] As attached Figure 1 , 2 As shown in Figure 4, the projectile recovery mechanism includes a through-hole 14, which is located on the top surface of the workbench 1. A filter screen 15 is fixedly connected inside the through-hole 14, allowing the projectile to fall through the through-hole 14 into the projectile collection shell 16, while simultaneously performing preliminary separation of large impurities.
[0028] As attached Figure 4 , 5 As shown, a shot collection shell 16 is fixedly connected to the bottom of the workbench 1. A filter screen 17 is slidably connected inside the shot collection shell 16. A spring 18 is fixedly connected between the filter screen 17 and the workbench 1. A second motor 19 is fixedly installed on both sides of the shot collection shell 16. A rotating disk 20 is fixedly connected to the output end of the second motor 19. A rotating rod 21 is hinged to one side of the rotating disk 20. A hinge post 22 is hinged to the top of the rotating rod 21. The hinge post 22 is fixed to the top of the filter screen 17, causing the filter screen 17 to swing up and down, which facilitates the filtration and separation of shot and impurities.
[0029] As attached Figure 4 , 5 As shown, the bottom of the projectile collection shell 16 is fixedly connected to a discharge pipe 23, and a valve 24 is installed inside the discharge pipe 23 to facilitate the discharge of the collected projectiles.
[0030] The working principle of this utility model is as follows: When this equipment is working, the cold work die steel workpiece is first placed in the through groove 14 on the worktable 1. Then, the protective shot peening mechanism is used to carry out shot peening strengthening treatment. During the treatment, the electric slide table 2 drives the protective cover 3 to fall, so that the protective cover 3 covers the die steel. Then, the first motor 9 is started, so that the threaded sleeve 11 will move linearly with the rotation of the threaded rod 10. The connecting slide 12 is fixedly connected to the shot peening device 7, so the shot peening device 7 will move together with the threaded sleeve 11, thereby realizing the precise adjustment of the shot peening position in the horizontal direction. The shot enters the telescopic hose 6 through the shot tube 5 and then reaches the shot peening device 7, which sprays the shot at high speed onto the surface of the workpiece, thereby realizing the shot peening strengthening treatment of the cold work die steel workpiece. During the entire shot peening process, the operator can observe the shot peening effect in real time through the transparent observation window 4.
[0031] During shot peening, loose shot and impurities fall through the through-hole 14 onto the filter screen 15. The filter screen 15 performs initial separation of the shot and larger impurities; larger impurities are trapped above the filter screen, while the shot continues to fall through. The second motor 19 is then activated, driving the rotating disk 20 to rotate. As the rotating disk 20 rotates, the circular motion is converted into the up-and-down vibration of the filter screen plate 17 via the hinged rotating rod 21 and hinged column 22. The spring 18 supports the filter screen plate 17 and assists in... The vibration of the filter screen 17 further separates the bullets and fine impurities. The fine impurities pass through the filter screen 17 and fall to the bottom of the bullet collection shell 16, while the pure bullets remain on the filter screen 17. By opening the valve 24 on the discharge pipe 23, the pure bullets remaining on the filter screen 17 can be discharged through the discharge pipe 23. Afterward, these bullets can be collected again and transported to the bullet pipe 5 to achieve the recycling of bullets. This not only reduces production costs but also improves resource utilization.
[0032] In conclusion, the above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A shot peening and strengthening device for cold work die steel, comprising a worktable (1), characterized in that: The top of the workbench (1) is equipped with a protective shot blasting mechanism; The protective shot blasting mechanism includes an electric slide (2), which is fixedly installed on the top of the workbench (1). A protective cover (3) is slidably connected to one side of the electric slide (2). A transparent observation window (4) is fixedly installed inside the protective cover (3). A shot tube (5) is fixedly connected to the top of the protective cover (3). A telescopic hose (6) is fixedly connected to the bottom of the shot tube (5). A shot blaster (7) is fixedly connected to one end of the telescopic hose (6). A fixed shell (8) is fixedly installed on the top of the protective cover (3). A first motor (9) is fixedly installed on one side of the fixed shell (8). A threaded rod (10) is fixedly connected to the output end of the first motor (9). A threaded sleeve (11) is threadedly connected to the outside of the threaded rod (10). A connecting slide rod (12) is fixedly connected to the bottom of the threaded sleeve (11). A shot recovery mechanism is provided at the bottom of the protective cover (3).
2. The shot peening strengthening equipment for cold work die steel surface according to claim 1, characterized in that: The top surface of the protective cover (3) is provided with a through groove (13), the through groove (13) is slidably connected to the connecting slide rod (12), and the connecting slide rod (12) is fixedly connected to the shot peening device (7).
3. The shot peening strengthening equipment for cold work die steel surface according to claim 1, characterized in that: The projectile recovery mechanism includes a through groove (14), which is opened on the top surface of the workbench (1), and a filter screen (15) is fixedly connected inside the through groove (14).
4. The shot peening strengthening equipment for cold work die steel surface according to claim 3, characterized in that: The bottom of the workbench (1) is fixedly connected to a shot collection shell (16), and a filter screen plate (17) is slidably connected inside the shot collection shell (16). A spring (18) is fixedly connected between the filter screen plate (17) and the workbench (1).
5. The shot peening strengthening equipment for cold work die steel surface according to claim 4, characterized in that: The projectile collecting shell (16) is fixedly installed with a second motor (19) on both sides. The output end of the second motor (19) is fixedly connected to a rotating disk (20). A rotating rod (21) is hinged to one side of the rotating disk (20).
6. The shot peening strengthening equipment for cold work die steel according to claim 5, characterized in that: The top of the rotating rod (21) is hinged to a hinge column (22), which is fixed to the top of the filter screen (17).
7. The shot peening strengthening equipment for cold work die steel surface according to claim 4, characterized in that: The bottom of the projectile collection shell (16) is fixedly connected to a discharge pipe (23), and a valve (24) is installed inside the discharge pipe (23).