Magnetic separation type shot blasting machine
By introducing screening components and magnetic adsorption rollers into the shot blasting machine, the problem of separating crushed shot from shot material was solved, achieving efficient screening and recycling of shot material, and ensuring shot blasting quality and equipment lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DAFENG MINGHONG CASTING MASCH MFG CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-06-02
AI Technical Summary
Existing magnetic separation shot blasting machines cannot effectively distinguish between crushed shot fragments and whole shot, resulting in reduced shot blasting quality and accelerated equipment wear during shot fragment recycling and reuse, thus increasing maintenance costs.
The design includes a shot blasting chamber, a screening assembly, a shot blasting recovery assembly, and a magnetic adsorption roller. It achieves the separation of crushed shot and shot material through screening and magnetic adsorption. The screen screens fine impurities and crushed shot, while the magnetic adsorption rollers adsorb magnetic impurities and crushed shot. The combination of these components and a synchronous mechanism enables efficient separation.
It achieves efficient screening and recycling of shot, avoids broken shot affecting shot blasting quality and equipment lifespan, and reduces maintenance costs.
Smart Images

Figure CN224310409U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shot blasting machine technology, specifically a magnetic separation type shot blasting machine. Background Technology
[0002] Shot blasting machines, as casting equipment that uses a shot blaster to throw high-speed shot to clean or strengthen the surface of castings, work by using a shot blaster to throw steel shot or other projectiles at high speed and impact the surface of the material. Compared to other surface treatment technologies, shot blasting machines have significant advantages in terms of processing speed and efficiency, and can simultaneously complete sand removal, core removal, and cleaning operations on castings during partial retention or stamping processes. In shot recovery, magnetic separation is widely used, utilizing the difference in magnetic properties between the shot and impurities. Specifically, if the shot is made of magnetic materials (such as iron shot), while the impurities are usually non-magnetic or weakly magnetic substances, then under the influence of a magnetic field, the non-magnetic or weakly magnetic impurities will not be affected by the magnetic field and will continue along their original trajectory, thus achieving effective separation of the shot and impurities.
[0003] However, existing magnetic separation shot blasting machines still have certain shortcomings in practical applications. Although this technology can effectively distinguish non-magnetic impurities through magnetic adsorption, shot breakage is inevitable during the shot blasting process. Existing magnetic separation methods cannot effectively distinguish between broken shot fragments and whole shot. If shot containing fragments is recycled and reused, the presence of these fragments will significantly reduce the shot blasting quality because their impact force is insufficient to achieve the desired cleaning or strengthening effect. Simultaneously, fragments will accelerate the wear of equipment components, shorten equipment lifespan, and increase maintenance costs. Utility Model Content
[0004] The purpose of this invention is to provide a magnetic separation shot blasting machine to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a magnetic separation shot blasting machine, comprising a shot blasting chamber and a shot blasting machine body, wherein the output end of the shot blasting machine body is connected to the top of the shot blasting chamber, a door is hinged to the opening end of the shot blasting chamber, a separation box is provided at the bottom of the shot blasting chamber through a discharge pipe, and a first screening component, a shot blasting recovery component and a second screening component are sequentially arranged inside the separation box, and a recovery pipe matching the shot blasting recovery component is provided at the bottom of the separation box.
[0006] Preferably, the first screening component includes a screen that is inclinedly disposed in the separation box, the screen being located below the discharge pipe, the lower end of the screen being connected to the separation box via a first vertical plate, and a first impurity discharge pipe being provided at the bottom of the separation box, the first impurity discharge pipe being located at the lower end of the screen.
[0007] Preferably, the shot blasting recovery assembly includes a guide plate inclinedly disposed in a separation box, the high end of the guide plate being connected to a first vertical plate, and a recovery pipe matching the guide plate being provided at the bottom of the separation box.
[0008] Preferably, a magnetic adsorption roller is rotatably installed inside the separation box, and the magnetic adsorption roller is connected to the guide plate through a first guide scraper.
[0009] Preferably, the second screening component includes a guide plate inclinedly disposed in the separation box, the high end of the guide plate being connected to the second vertical plate, the low end of the guide plate being matched with the second impurity discharge pipe, a magnetic pellet adsorption roller being rotatably disposed inside the separation box, the magnetic pellet adsorption roller being connected to the guide plate through a second material guide scraper, and the magnetic adsorption roller being connected to the magnetic pellet adsorption roller through a synchronization mechanism.
[0010] Preferably, the synchronization mechanism includes a main shaft disposed inside the magnetic adsorption roller, a slave shaft disposed inside the magnetic shot blasting adsorption roller, and the end of the main shaft being fixedly connected to the output end of the motor.
[0011] Preferably, both the main shaft and the driven shaft extend out of the separation box and are equipped with synchronous pulleys on the outside, and the two synchronous pulleys are synchronously connected by a synchronous belt.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] The first screening component can easily screen out fine debris in the shot, facilitating subsequent recycling operations. At the same time, in conjunction with the shot blasting recycling component and magnetic adsorption roller, magnetic shot and other impurities such as broken shot can be adsorbed. The shot blasting recycling component, in conjunction with the second screening component, can easily separate and screen broken shot and shot, thus effectively recycling the shot without affecting subsequent use.
[0014] The integrated synchronization mechanism allows for easy rotation of the magnetic adsorption roller and the magnetic pellet adsorption roller. The magnetic adsorption roller can easily adsorb magnetic pellets and impurities such as pellets for subsequent separation and screening. At the same time, the magnetic pellet adsorption roller can re-adsorb pellets and magnetic impurities, facilitating separation from the pellets without affecting pellet recycling. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a magnetic separation shot blasting machine proposed in this utility model;
[0016] Figure 2 This is a partial structural schematic diagram of a magnetic separation shot blasting machine proposed in this utility model;
[0017] Figure 3 This is a schematic diagram of the rotating mechanism and fabric roller in a magnetic separation shot blasting machine proposed in this utility model;
[0018] Figure 4 This is one of the structural schematic diagrams of the steam tank in a magnetic separation shot blasting machine proposed in this utility model.
[0019] In the diagram: 11. Shot blasting chamber; 12. Shot blasting machine body; 13. Chamber door; 21. Separation box; 22. Discharge pipe; 23. Recovery pipe; 24. First vertical plate; 25. Second vertical plate; 31. Screen; 32. First impurity discharge pipe; 41. Guide plate; 42. Magnetic adsorption roller; 43. First guide scraper; 51. Guide plate; 52. Second guide scraper; 53. Magnetic shot adsorption roller; 55. Second impurity discharge pipe; 61. Main shaft; 62. Motor; 63. Driven shaft; 71. Synchronous pulley; 72. Synchronous belt. Detailed Implementation
[0020] 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.
[0021] Please see Figures 1-4 This utility model provides an embodiment of a magnetic separation shot blasting machine, including a shot blasting box 11 and a shot blasting machine body 12. The output end of the shot blasting machine body 12 is connected to the top of the shot blasting box 11. The shot blasting machine body 12 is also equipped with a dust removal system, which can be a bag or filter cartridge dust removal device, etc., to facilitate shot blasting of steel workpieces. The shot blasting box 11 has a hinged door 13 at the open end for easy opening and closing, and easy placement and removal of workpieces. The bottom is provided with a discharge pipe 22 for easy recycling and discharge of shot. A separation box 21 is provided at the bottom of the discharge pipe 22 for easy magnetic separation of shot, impurities, etc. The separation box 21 is provided with a first screening component, a shot blasting recovery component and a second screening component in sequence. The bottom of the separation box 21 is provided with a recovery pipe 23 that matches the shot blasting recovery component for easy magnetic separation and easy recycling and reuse of the sorted shot.
[0022] Please see Figures 1-4To facilitate the screening of impurities, broken pellets, and pellets, ensure the sorting effect, and prevent the recovered pellets from containing broken pellets that could affect subsequent recycling, a first screening component is provided inside the separation box 21. The first screening component includes a screen 31 inclined inside the separation box 21, which facilitates the screening of small-sized impurities and broken pellets. The screen 31 is located below the discharge pipe 22, and the lower end of the screen 31 is connected to the separation box 21 through a first vertical plate 24. A first impurity discharge pipe 32 is provided at the bottom of the separation box 21, located at the lower end of the screen 31, to facilitate the discharge and collection of screened impurities.
[0023] The shot blasting recycling assembly includes a guide plate 41 inclinedly disposed in the separation box 21. The high end of the guide plate 41 is connected to the first vertical plate 24. The bottom of the separation box 21 is provided with a recycling pipe 23 that matches the guide plate 41, which allows the shot to fall from the low end of the guide plate 41 and be recycled through the recycling pipe 23, facilitating subsequent recycling and reuse.
[0024] To facilitate magnetic screening of pellets and granules and separate them from non-magnetic substances, a magnetic adsorption roller 42 is installed inside the separation box 21. The magnetic adsorption roller 42 is connected to the guide plate 41 via a first guide scraper 43. The second screening component includes a guide plate 51 inclined inside the separation box 21. The high end of the guide plate 51 is connected to a second vertical plate 25, and the low end of the guide plate 51 matches a second impurity discharge pipe 55. A magnetic pellet adsorption roller 53 is installed inside the separation box 21 to facilitate the adsorption of magnetic impurities and pellets, separating them from the granules. The magnetic pellet adsorption roller 53 is connected to the guide plate 51 via a second guide scraper 52. The magnetic adsorption roller 42 and the magnetic pellet adsorption roller 53 can be attracted by electricity and demagnetized when the power is off; this is a mature technology and will not be discussed further here. To elaborate further, the strength of the magnetism can be adjusted by adjusting the current, ensuring that the magnetic adsorption roller 42 can adsorb magnetic impurities, pellets, and pellets, while the magnetic pellet adsorption roller 53 can only adsorb magnetic impurities and pellets, but not pellets, facilitating sorting. The magnetic adsorption roller 42 and the magnetic pellet adsorption roller 53 are connected by a synchronization mechanism, which includes a main rotating shaft 61 installed inside the magnetic adsorption roller 42 and a driven rotating shaft 63 installed inside the magnetic shot blasting adsorption roller. The end of the main rotating shaft 61 is fixedly connected to the output end of the motor 62. Both the main rotating shaft 61 and the driven rotating shaft 63 pass through the separation box 21 and are equipped with synchronous pulleys 71 on the outside. The two synchronous pulleys 71 are synchronously connected by a synchronous belt 72, and can rotate synchronously by the synchronous belt 72 in conjunction with the synchronous pulleys 71. Synchronous rotation can also be achieved by means of sprockets, chains, etc., which are relatively mature technologies and will not be elaborated here.
[0025] Working Principle: In use, this invention utilizes the shot blasting machine body 12 and shot blasting box 11 to perform shot blasting on workpieces. Impurities and shot generated during the shot blasting process are discharged through the discharge pipe 22 into the separation box 21. Preliminary screening is performed through the screen 31. Smaller impurities and broken shot are screened and discharged through the first impurity discharge pipe 32, while relatively larger impurities, broken shot, and shot can be attracted by the magnetic adsorption roller 42. The motor 62 rotates, causing the main shaft 61 to rotate, which in turn rotates the magnetic adsorption roller 42. The synchronous pulley 71 and synchronous belt 72 can drive the rotating shaft 63 to rotate synchronously. Then, the first guide scraper 43 can scrape off the relatively large-sized impurities, magnetic particles, and pellets. Then, the feed is discharged through the guide plate 41. During the feeding process, the relatively large-sized impurities, magnetic particles, and pellets are adsorbed by the magnetic pellet adsorption roller 53, while the pellets are discharged and collected through the recovery pipe 23. The relatively large-sized impurities, magnetic particles, and pellets can be scraped off with the second guide scraper 52. With the help of the guide plate 51 and the second impurity discharge pipe 55, the pellets can be discharged, completing the separation.
[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A magnetic separation type shot blasting machine, comprising a shot blasting box (11) and a shot blasting machine body (12), the output end of the shot blasting machine body (12) is connected with the top of the shot blasting box (11), the opening end of the shot blasting box (11) is hinged with a box door (13), and the bottom of the shot blasting box (11) is provided with a separation box (21) through a discharge pipe (22), characterized in that: The separation box (21) is provided with a first screening component, a shot blasting recovery component and a second screening component in sequence inside, and a recovery pipe (23) matching the shot blasting recovery component is provided at the bottom of the separation box (21). 2. A magnetic separation type shot blasting machine according to claim 1, characterized in that: The first screening component includes a screen (31) inclinedly disposed in the separation box (21). The screen (31) is located below the discharge pipe (22). The lower end of the screen (31) is connected to the separation box (21) through a first vertical plate (24). The bottom end of the separation box (21) is provided with a first impurity discharge pipe (32), which is located at the lower end of the screen (31).
3. The magnetic separation shot blasting machine according to claim 2, characterized in that: The shot blasting recovery assembly includes a guide plate (41) inclinedly disposed in a separation box (21), the high end of the guide plate (41) being connected to a first vertical plate (24), and a recovery pipe (23) matching the guide plate (41) being provided at the bottom of the separation box (21).
4. A magnetic separation shot blasting machine according to claim 3, characterized in that: The separation box (21) is equipped with a magnetic adsorption roller (42) that rotates inside. The magnetic adsorption roller (42) is connected to the guide plate (41) through a first guide scraper (43).
5. A magnetic separation shot blasting machine according to claim 4, characterized in that: The second screening component includes a guide plate (51) inclinedly disposed in the separation box (21). The high end of the guide plate (51) is connected to the second vertical plate (25), and the low end of the guide plate (51) is matched with the second impurity discharge pipe (55). A magnetic pellet adsorption roller (53) is rotatably disposed inside the separation box (21). The magnetic pellet adsorption roller (53) is connected to the guide plate (51) through a second guide scraper (52). The magnetic adsorption roller (42) and the magnetic pellet adsorption roller (53) are connected through a synchronization mechanism.
6. A magnetic separation shot blasting machine according to claim 5, characterized in that: The synchronization mechanism includes a main shaft (61) disposed in a magnetic adsorption roller (42), a slave shaft (63) disposed in the magnetic shot blasting adsorption roller, and the end of the main shaft (61) being fixedly connected to the output end of the motor (62).
7. A magnetic separation shot blasting machine according to claim 6, characterized in that: Both the main shaft (61) and the slave shaft (63) extend out of the separation box (21) and are equipped with synchronous pulleys (71) on the outside. The two synchronous pulleys (71) are synchronously connected by a synchronous belt (72).