High-speed spring shot blasting equipment and shot blasting process

Abstract

The present invention provides a high-speed spring shot blasting equipment and a shot blasting process, wherein a bracket is surrounded by an inner wall of a shot blasting chamber, and a rotating bearing is rotatably connected to the lower end of the bracket. An outer ring is provided at the upper and lower ends of the rotating bearing, and the rotating bearing rotates 360 degrees at the lower end of the bracket. The bracket and the rotating bearing are matched with each other, and the bracket surrounds the inner wall of the shot blasting chamber. Tracks are provided at both ends of the outer side of the outer ring, and the track is in a circular ring shape. When the rotating bearing rotates, the outer ring rotates synchronously, and protrusions are distributed on the inner side of the track of the outer ring. A sliding rod is slidably connected to the inner side of the track of the outer ring, and a deformation plate is provided at both ends of the sliding rod. When one side of the extension plate is continuously impacted by the spring and sand particles, the sliding rod can be continuously squeezed to one side of the protrusion. At this time, the deformation plate is compressed and deformed as a whole. Through the deformation of the deformation plate, the length of the two ends of the sliding rod is shortened, and then the sliding rod can pass through one side of the protrusion and continuously slide on the outside of the outer ring.

Description

Technical Field

[0001] The present invention relates to the technical field of abrasive or particulate material spraying, in particular to high-speed spring shot blasting equipment and a shot blasting process. Background Art

[0002] After the spring is processed by shot blasting equipment, it can eliminate the internal stress of the produced spring, improve its durability and strength, remove the rust, oxide scale and dirt on the surface of the workpiece, and make the surface of the spring workpiece present the natural color of metal. The shot blasting equipment mainly uses the high-speed rotating shot blasting wheel to spray the shot blasting medium at high speed onto the metal surface to achieve the effect of cleaning, rust removal and strengthening. Technical inspiration for shot blasting equipment;

[0003] The research on shot blasting equipment found the following problems:

[0004] The shot blasting equipment can only drive the shot blasting medium and spring friction cleaning through high-speed rotation. Due to the randomness of the friction between the spring and the shot blasting medium, the shot blasting equipment needs to rotate the spring and the shot blasting medium for a long time. This makes it impossible for the shot blasting equipment to further assist the shot blasting medium and spring in squeezing and friction while driving the shot blasting medium and spring at high speed, thereby shortening the spring processing time.

[0005] At present, CN202410384107.4 in the prior art discloses a spring shot blasting machine, which discloses a shot blasting machine. The invention arranges a screen plate inside the processing box. After shot blasting, the projectiles first fall into the highest position of the upper screen plate. Since the screen plate is inclined, the projectiles roll from the highest position to the lowest position along its inclined surface, and then fall on the highest position of the lower screen plate, and finally roll from the highest position to the lowest position. In the process of rolling, the projectiles are screened and processed. At the same time, the rotating elliptical disk continuously pushes the screen plate upward to make it vibrate up and down continuously. The continuously vibrating screen plate can not only make the projectiles roll off the screen plate more quickly for screening, but also can make the impurities falling into the sieve holes be shaken off more quickly, thereby preventing the problem of material blockage.

[0006] The present invention can mainly solve the problem that the shot blasting equipment cannot further assist the shot blasting medium and the spring in extruding and rubbing while driving the shot blasting medium and the spring during high-speed rotation. Summary of the Invention

[0007] The object of the present invention is to provide a high-speed spring shot blasting device and a shot blasting process.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A high-speed spring shot blasting equipment and a shot blasting process include a shot blasting chamber, the top of which is movably nested and connected to a top cover, the side of which is hingedly connected to a side cover, the upper end of the shot blasting chamber is penetrated and docked with a pipe, the pipe is in turn connected to a dust removal chamber and a suction pump through the pipe, and the interior of the shot blasting chamber is rotatably connected to an impeller.

[0010] As a further solution of the present invention: a motor and a discharge port are provided at the lower end of the shot blasting chamber, the discharge port is equipped with a valve, the motor and the suction pump are connected to the power circuit through a power line, and the motor drives the impeller to rotate inside the shot blasting chamber.

[0011] As a further solution of the present invention: the side cover is hinged to the side of the shot blasting chamber to swing at 90 degrees, and the pipeline runs through the interior of the top cover.

[0012] As a further solution of the present invention: a dust filter bag is provided inside the dust removal chamber, and a suction pump drives the air and dust inside the shot blasting chamber into the interior of the dust removal chamber through a pipeline.

[0013] As a further solution of the present invention: the impeller is arranged vertically as a whole, and the interior of the shot blasting chamber is filled with springs and sand grains.

[0014] As a further solution of the present invention: the inner wall of the shot blasting chamber is surrounded by a bracket, the lower end of the bracket is rotatably connected to a rotary bearing, and the upper and lower ends of the rotary bearing are provided with outer rings.

[0015] As a further solution of the present invention: the rotary bearing is rotatable 360 ​​degrees at the lower end of the bracket, the bracket and the rotary bearing are matched with each other, and the bracket surrounds the inner wall of the shot blasting chamber.

[0016] As a further solution of the present invention: tracks are provided at both ends of the outer side of the outer ring, and the tracks are in a circular ring shape. When the rotary bearing rotates, the outer ring rotates synchronously.

[0017] As a further solution of the present invention: there are protrusions distributed on the inner side of the track of the outer ring, and a sliding rod is slidably connected inside the track of the outer ring. The two ends of the sliding rod are inlaid with deformable plates, and the side of the sliding rod away from the outer ring is slidably connected to a side plate, and an extension plate is provided between the side plates.

[0018] As a further solution of the present invention: there are four evenly distributed protrusions, the protrusions and the outer ring are matched with each other, the protrusions are semicircular in shape, and the radius of the protrusions is 0.5-1 cm.

[0019] As a further solution of the present invention, the sliding rods form a group of two, each group of sliding rods is located between the protrusions, and the sliding rods slide 360 ​​degrees on the inner side of the track of the outer ring.

[0020] As a further solution of the present invention: the deformable plate is wavy in shape as a whole, the interior of the deformable plate is hollow, and the deformable plate is made of rubber.

[0021] As a further solution of the present invention: the extension plate passes through one side of the rotary bearing, the side plates are located at both ends of the extension plate, the extension plates are arranged vertically, and each two extension plates are distributed on the outside of the rotary bearing in a group.

[0022] As a further solution of the present invention: the shot blasting process comprises the following steps:

[0023] S1: Open the top cover, fill the shot blasting chamber with springs and sand, close the top cover, and then the motor drives the impeller to rotate at high speed, and the impeller sprays the sand at high speed onto the surface of the spring;

[0024] S2: The impeller drives the spring and sand to rotate at high speed inside the shot blasting chamber. The spring and sand impact one side of the extension plate. The extension plate drives the slide bar to slide through the side plate. The slide bar slides 360 degrees on the inner side of the outer ring.

[0025] S3: Since there are bumps on the inner side of the outer ring, when the slide bar slides to one side of the bump, the protrusion of the bump can intercept and stop the slide bar;

[0026] S4: The sliding bar on the other side of the outer ring can impact one side of the sliding bar, and the distance between the extension plates on one side of the sliding bar is shortened;

[0027] S5: When one side of the extension plate is continuously impacted by the spring and sand, the slide bar can be continuously squeezed to one side of the bump. At this time, the deformable plate is compressed and deformed as a whole. Through the deformation of the deformable plate, the length of both ends of the slide bar is shortened;

[0028] S6: The sliding rod can then pass through one side of the protrusion and continue to slide on the outside of the outer ring, repeating the above steps. The extension plates can repeatedly squeeze and clean the spring and sand during the rotation of the impeller;

[0029] S7: The dust generated after the spring is cleaned enters the dust removal chamber through the pipe. The suction pump drives the air and dust inside the shot blasting chamber into the dust removal chamber through the pipe. The dust is filtered through the dust filter bag inside the dust removal chamber.

[0030] Beneficial effects

[0031] 1. The impeller drives the spring and sand particles to rotate at high speed inside the shot blasting chamber. The spring and sand particles impact one side of the extension plate. The extension plate drives the slide bar to slide through the side plate. The slide bar slides 360° on the inner side of the outer ring. Since there are bumps on the inner side of the outer ring, when the slide bar slides to one side of the bump, the bulge of the bump can intercept and stop the slide bar.

[0032] 2. At this time, the sliding rod on the other side of the outer ring can impact one side of the sliding rod, and the distance between the extension plates on one side of the sliding rod is shortened. Through the extrusion between the extension plates, the spring and sand particles can be further squeezed and cleaned, so that the shot blasting equipment can use the impact generated by the rotation of the spring and sand particles driven by the impeller to further squeeze and blast the spring and sand particles, thereby reducing the overall shot blasting time of the spring;

[0033] 3. Deformable plates are provided at both ends of the slide rod. When one side of the extension plate is continuously impacted by the spring and sand, the slide rod can be continuously squeezed to one side of the protrusion. At this time, the deformable plate is compressed and deformed as a whole. Through the deformation of the deformable plate, the length of both ends of the slide rod is shortened, and the slide rod can then pass through one side of the protrusion and continue to slide outside the outer ring. Repeating the above steps, the extension plates can repeatedly squeeze and clean the spring and sand during the rotation of the impeller.

[0034] 4. Through the above steps, during the high-speed rotation of the spring and sand, the impact force generated by the movement of the spring and sand can be used to drive the extension plate and the slide rod to slide. At the same time, the temporary stagnation of the slide rod and the deformable plate by the protrusion can enable the spring to be squeezed and shot blasted between the extension plates, thereby shortening the spring shot blasting time. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0036] Figure 2 It is a schematic structural diagram of the shot blasting chamber of the present invention.

[0037] Figure 3 It is a schematic diagram of the interior of the shot blasting chamber of the present invention.

[0038] Figure 4 It is a partial schematic diagram of the interior of the shot blasting chamber of the present invention.

[0039] Figure 5 Schematic diagram of a rotary bearing assembly of the present invention.

[0040] Figure 6 Schematic diagram of the outer ring structure of the present invention.

[0041] Figure 7 It is a schematic diagram of the side structure of the outer ring of the present invention.

[0042] Figure 8 Schematic diagram of the sliding rod structure of the present invention.

[0043] Figure 1-8Middle: 1- shot blasting chamber, 101- pipe, 102- dust removal chamber, 103- suction pump, 104- top cover, 105- impeller, 106- side cover, 2- bracket, 201- rotating bearing, 3- outer ring, 301- bump, 302- slide rod, 303- deformation plate, 4- side plate, 401- extension plate. DETAILED DESCRIPTION

[0044] See also Figure 1-8 In the embodiment of the present invention,

[0045] Example 1: A high-speed spring shot blasting device and a shot blasting process, comprising a shot blasting chamber 1, a top cover 104 being movably nested and connected to the top of the shot blasting chamber 1, a side cover 106 being hingedly connected to the side of the shot blasting chamber 1, a pipe 101 being passed through and docked at the upper end of the shot blasting chamber 1, the pipe 101 being connected to a dust removal chamber 102 and a suction pump 103 in turn through the pipe 101, and an impeller 105 being rotatably connected to the interior of the shot blasting chamber 1;

[0046] Wherein: the shot blasting chamber 1, the lower end of the shot blasting chamber 1 is provided with a motor and a discharge port, the discharge port is equipped with a valve, the motor and the suction pump 103 are connected to the power circuit through a power line, and the motor drives the impeller 105 to rotate inside the shot blasting chamber 1;

[0047] The discharge port is equipped with a valve, which is used to close and open the discharge port, so that the spring inside the shot blasting chamber 1 can fall to the bottom of the shot blasting chamber 1;

[0048] The side cover 106 is hinged to the side of the shot blasting chamber 1 and swings 90 degrees. The pipe 101 runs through the interior of the top cover 104.

[0049] A dust removal chamber 102 is provided with a dust filter bag inside the dust removal chamber 102, and a suction pump 103 drives the air and dust inside the shot blasting chamber 1 into the interior of the dust removal chamber 102 through the pipe 101;

[0050] The suction pump 103 drives the air and dust inside the shot blasting chamber 1 into the dust removal chamber 102 through the pipe 101, and the dust is filtered by the dust filter bag inside the dust removal chamber 102;

[0051] The impeller 105 is arranged vertically as a whole, and the interior of the shot blasting chamber 1 is filled with springs and sand particles;

[0052] Among them: the top cover 104 is opened, the spring and sand are filled into the shot blasting chamber 1, and the top cover 104 is closed. Then the motor drives the impeller 105 to rotate at high speed. The impeller 105 sprays sand at high speed onto the surface of the spring to achieve the effects of cleaning, rust removal and strengthening. Then the dust generated after the spring is cleaned enters the interior of the dust removal chamber 102 through the pipe 101. The suction pump 103 drives the air and dust inside the shot blasting chamber 1 into the interior of the dust removal chamber 102 through the pipe 101. The dust is filtered by the dust filter bag inside the dust removal chamber 102;

[0053] Example 2: Refer to the attached manual Figure 3-6 It can be seen that the difference between Example 2 and Example 1 is that the inner wall of the shot blasting chamber 1 is surrounded by a bracket 2, the lower end of the bracket 2 is rotatably connected to a rotary bearing 201, and the upper and lower ends of the rotary bearing 201 are provided with outer rings 3;

[0054] Among them: the bracket 2 and the rotating bearing 201, the rotating bearing 201 is 360° rotatable at the lower end of the bracket 2, the bracket 2 and the rotating bearing 201 are matched, and the bracket 2 surrounds the inner wall of the shot blasting chamber 1;

[0055] The outer ring 3 has tracks at both ends of the outer side of the outer ring 3. The tracks are annular. When the rotary bearing 201 rotates, the outer ring 3 rotates synchronously.

[0056] The bracket 2 and the rotary bearing 201 are distributed around the outer side of the impeller 105. The impeller 105 drives the sand and the spring to move at high speed inside the shot blasting chamber 1. At this time, the sand and the spring synchronously impact the outer side of the outer ring 3. The outer ring 3 drives the rotary bearing 201 to rotate 360 ​​degrees at the lower end of the bracket 2.

[0057] Example 3: Refer to the attached manual Figure 5-8 It can be seen that the difference between Example 3 and Example 1-2 is that a protrusion 301 is distributed on the inner side of the track of the outer ring 3, a sliding rod 302 is slidably connected to the inner side of the track of the outer ring 3, and a deformable plate 303 is embedded at both ends of the sliding rod 302. The side of the sliding rod 302 away from the outer ring 3 is slidably connected to the side plate 4, and an extension plate 401 is provided between the side plates 4;

[0058] Among them: convex block 301, convex block 301 is evenly distributed with 4, convex block 301 and outer ring 3 are matched with each other, convex block 301 is semicircular arc shape, and convex block 301 has a radius of 0.5-1cm;

[0059] The bump 301 is semicircular in shape, and the radius of the bump 301 is 0.5-1 cm, so as to avoid the situation where the slide bar 302 cannot slide on one side of the bump 301 due to the large radius of the bump 301;

[0060] Slide rods 302, each two slide rods 302 form a group, each group of slide rods 302 is located between the protrusions 301, and the slide rods 302 slide 360 ​​degrees on the inner side of the track of the outer ring 3;

[0061] Each pair of slide bars 302 is a group, and each group of slide bars 302 is located between the protrusions 301. Figure 7 As shown;

[0062] Each set of sliding rods 302 is located between the protrusions 301. When one set of sliding rods 302 is stopped due to the resistance of the protrusions 301, the other set of sliding rods 302 can quickly impact to one side of the sliding rod 302.

[0063] The deformable plate 303 is wavy in shape as a whole, hollow in the interior, and made of rubber;

[0064] The deformable plate 303 is wavy in shape and hollow in interior. Figure 8 As shown;

[0065] When the slide bar 302 is stopped by the arc-shaped setting of the protrusion 301, the deformable plate 303 is wavy as a whole and hollow inside. As the slide bar 302 continues to slide, the deformable plate 303 is compressed and deformed as a whole. The deformation of the deformable plate 303 shortens the length of both ends of the slide bar 302, and the slide bar 302 can pass through one side of the protrusion 301 and continue to slide outside the outer ring 3.

[0066] The side panels 4 and the extension panels 401 extend through one side of the rotating bearing 201 . The side panels 4 are located at both ends of the extension panels 401 . The extension panels 401 are arranged vertically, with each two extension panels 401 forming a group and distributed outside the rotating bearing 201 .

[0067] The extension plates 401 are arranged vertically, and each two extension plates 401 are distributed on the outside of the rotating bearing 201. Figure 5 As shown;

[0068] The impeller 105 drives the spring and sand particles to rotate at high speed inside the shot blasting chamber 1. The spring and sand particles impact one side of the extension plate 401. The extension plate 401 drives the slide bar 302 to slide through the side plate 4. The slide bar 302 slides 360° on the inner side of the outer ring 3. Since the inner side of the outer ring 3 is provided with a protrusion 301, when the slide bar 302 slides to one side of the protrusion 301, the protrusion of the protrusion 301 can intercept and stop the slide bar 302.

[0069] At this time, the slide bar 302 on the other side of the outer ring 3 can impact one side of the slide bar 302, and the distance between the extension plates 401 on one side of the slide bar 302 is shortened. Through the squeezing between the extension plates 401, the spring and the sand particles can be further squeezed and cleaned, so that the shot blasting equipment can use the impact generated by the rotation of the spring and the sand particles driven by the impeller 105 to further squeeze and blast the spring and the sand particles, thereby reducing the overall shot blasting time of the spring.

[0070] The two ends of the slide rod 302 are provided with deformable plates 303. When one side of the extension plate 401 is continuously impacted by the spring and sand, the slide rod 302 can be continuously squeezed to one side of the protrusion 301. At this time, the deformable plate 303 is compressed and deformed as a whole. The deformation of the deformable plate 303 shortens the length of the two ends of the slide rod 302. Then, the slide rod 302 can pass through one side of the protrusion 301 and continue to slide on the outside of the outer ring 3. The above steps are repeated, so that the spring and sand can be repeatedly squeezed and cleaned between the extension plates 401 during the rotation of the impeller 105.

[0071] Example 4:

[0072] The shot blasting process includes the following steps:

[0073] S1: Open the top cover 104, fill the interior of the shot blasting chamber 1 with springs and sand, close the top cover 104, and then the motor drives the impeller 105 to rotate at high speed, and the impeller 105 sprays the sand at high speed onto the surface of the spring;

[0074] S2: The impeller 105 drives the spring and sand particles to rotate at high speed inside the shot blasting chamber 1. The spring and sand particles impact one side of the extension plate 401. The extension plate 401 drives the slide bar 302 to slide through the side plate 4. The slide bar 302 slides 360° inside the outer ring 3.

[0075] S3: Since there are bumps 301 on the inner side of the outer ring 3, when the slide bar 302 slides to one side of the bump 301, the protrusion of the bump 301 can intercept and stop the slide bar 302;

[0076] S4: The sliding rod 302 on the other side of the outer ring 3 can impact one side of the sliding rod 302, and the distance between the extension plates 401 on one side of the sliding rod 302 is shortened;

[0077] S5: When one side of the extension plate 401 is continuously impacted by the spring and sand, the slide bar 302 is continuously squeezed to one side of the protrusion 301. At this time, the deformable plate 303 is compressed and deformed as a whole. Through the deformation of the deformable plate 303, the length of both ends of the slide bar 302 is shortened.

[0078] S6: The sliding rod 302 can then pass through one side of the protrusion 301 and continue to slide on the outside of the outer ring 3, repeating the above steps. The extension plates 401 can repeatedly squeeze and clean the spring and sand during the rotation of the impeller 105;

[0079] S7: The dust generated after the spring cleaning enters the dust removal chamber 102 through the pipe 101. The suction pump 103 drives the air and dust inside the shot blasting chamber 1 into the dust removal chamber 102 through the pipe 101. The dust is filtered by the dust filter bag inside the dust removal chamber 102.

[0080] Through the above steps, during the high-speed rotation of the spring and sand, the impact force generated by the movement of the spring and sand can be used to drive the extension plate 401 and the slide bar 302 to slide. At the same time, the protrusion 301 can temporarily stop the slide bar 302 and the deformation plate 303, so that the spring can be squeezed and shot blasted between the extension plates 401, thereby shortening the spring shot blasting time.

[0081] The above are only preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A high-speed spring shot blasting equipment, characterized in that, include A shot blasting chamber (1), wherein the top of the shot blasting chamber (1) is movably nested and connected with a top cover (104), and the side of the shot blasting chamber (1) is hingedly connected with a side cover (106); The dust removal chamber (102) and the upper end of the shot blasting chamber (1) are connected to each other with a pipe (101), and the pipe (101) is connected to the dust removal chamber (102) and the suction pump (103) in turn through the pipe (101), and the interior of the shot blasting chamber (1) is connected to an impeller (105) for rotation; A dust filter bag is provided inside the dust removal chamber (102), and a suction pump (103) drives the air and dust inside the shot blasting chamber (1) into the dust removal chamber (102) through the pipe (101); The inner wall of the shot blasting chamber (1) is surrounded by a bracket (2), the lower end of the bracket (2) is rotatably connected to a rotary bearing (201), and the upper and lower ends of the rotary bearing (201) are both provided with outer rings (3); Tracks are provided at both ends of the outer side of the outer ring (3), and the tracks are in a circular ring shape. When the rotary bearing (201) rotates, the outer ring (3) rotates synchronously; The inner side of the track of the outer ring (3) is provided with a protrusion (301), the inner side of the track of the outer ring (3) is slidably connected to a slide rod (302), both ends of the slide rod (302) are inlaid with a deformable plate (303), the side of the slide rod (302) away from the outer ring (3) is slidably connected to a side plate (4), and an extension plate (401) is provided between the side plates (4); The deformable plate (303) is wavy in shape as a whole, and the interior of the deformable plate (303) is hollow; The side plate (4) and the extension plate (401) are provided. The extension plate (401) passes through one side of the rotary bearing (201). The side plate (4) is located at both ends of the extension plate (401). The extension plates (401) are arranged vertically. Every two extension plates (401) are distributed on the outside of the rotary bearing (201).

2. The high-speed spring shot blasting equipment according to claim 1, characterized in that: The lower end of the shot blasting chamber (1) is provided with a motor and a discharge port, the discharge port is equipped with a valve, the motor and the suction pump (103) are connected to the power circuit via a power line, and the motor drives the impeller (105) to rotate inside the shot blasting chamber (1).

3. The high-speed spring shot blasting equipment according to claim 2, characterized in that: The rotary bearing (201) is rotatable 360° at the lower end of the bracket (2). The bracket (2) and the rotary bearing (201) are arranged in a matching manner, and the bracket (2) surrounds the inner wall of the shot blasting chamber (1).

4. The high-speed spring shot blasting equipment according to claim 3, characterized in that: There are four evenly distributed protrusions (301), the protrusions (301) and the outer ring (3) are matched with each other, the protrusions (301) are semicircular, and the radius of the protrusions (301) is 0.5-1 cm.

5. The high-speed spring shot blasting equipment according to claim 4, characterized in that: The sliding rods (302) are grouped in pairs. Each group of sliding rods (302) is located between the protrusions (301). The sliding rods (302) slide 360 ​​degrees on the inner side of the track of the outer ring (3).

6. A shot blasting process of a high-speed spring shot blasting equipment, characterized in that: The high-speed spring shot blasting equipment according to any one of claims 1 to 5, wherein the shot blasting process comprises the following steps: S1: Open the top cover (104), fill the spring and sand inside the shot blasting chamber (1), close the top cover (104), and then the motor drives the impeller (105) to rotate at high speed, and the impeller (105) sprays the sand at high speed onto the surface of the spring; S2: The impeller (105) drives the spring and sand particles to rotate and move at high speed inside the shot blasting chamber (1). The spring and sand particles impact one side of the extension plate (401). The extension plate (401) drives the slide bar (302) to slide through the side plate (4). The slide bar (302) slides 360° inside the outer ring (3). S3: Since the inner side of the outer ring (3) is provided with a protrusion (301), when the slide bar (302) slides to one side of the protrusion (301), the protrusion of the protrusion (301) can be used to intercept and stop the slide bar (302); S4: The sliding rod (302) on the other side of the outer ring (3) can impact one side of the sliding rod (302), and the distance between the extension plates (401) on one side of the sliding rod (302) is shortened; S5: When one side of the extension plate (401) is continuously impacted by the spring and the sand, the slide bar (302) can be continuously squeezed to one side of the protrusion (301), and the deformation plate (303) is compressed and deformed as a whole. Through the deformation of the deformation plate (303), the lengths of both ends of the slide bar (302) are shortened; S6: The slide rod (302) can then pass through one side of the protrusion (301) and continue to slide on the outside of the outer ring (3), repeating the above steps. The extension plates (401) can repeatedly squeeze and clean the spring and sand particles during the rotation of the impeller (105); S7: The dust generated after the spring cleaning enters the interior of the dust removal chamber (102) through the pipe (101), and the suction pump (103) drives the air and dust inside the shot blasting chamber (1) into the interior of the dust removal chamber (102) through the pipe (101), and the dust is filtered through the dust filter bag inside the dust removal chamber (102).

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