CN219599164U - Dust collector of shot-blasting machine - Google Patents

Abstract

The utility model relates to the field of dust removing equipment, and discloses a dust removing device of a shot blasting machine, which comprises a shot blasting machine body, a dust removing cylinder and a dust collector, wherein a support is fixedly arranged on the outer wall of the right side of the shot blasting machine body, the dust removing cylinder is fixedly arranged at the bottom of the support, the dust collector is fixedly arranged on the outer wall of the right side of the dust removing cylinder, a discharge pipe which is obliquely arranged is fixedly arranged on the right side of the shot blasting machine body, the right end of the discharge pipe is fixedly arranged on the left side wall of the dust removing cylinder, the discharge pipe is communicated with the inside of the dust removing cylinder, and a dust collecting pipe is fixedly arranged at the suction end of the dust collector. The utility model has the following advantages and effects: can carry out quick effectual dust removal to the dust piece that produces when the shot-blasting machine body operates and the dust piece that mixes in the shot that uses, dust removal is more comprehensive thoroughly to can carry out quick effectual screening to the shot after using, can separate complete shot and broken shot, in order to follow-up reuse.

Description

Dust collector of shot-blasting machine

Technical Field

The utility model relates to the technical field of dust removing equipment, in particular to a dust removing device of a shot blasting machine.

Background

The shot blasting machine is casting equipment for cleaning or strengthening the surface of a casting by utilizing high-speed shots thrown out by the shot blasting machine, and can simultaneously perform shakeout, core removal and cleaning on the casting. When the shot blasting machine is used for blasting the workpiece, a large amount of dust and fragments can be generated, if a large amount of dust is accumulated in the shot blasting machine for a long time, and the dust is attached to the workpiece and the shot again under the condition that the shot blasting machine continuously works, the workpiece and the shot are polluted, and therefore dust and fragments in the shot blasting machine are required to be subjected to dust removal treatment through the dust removal device. When the dust removing device of the existing shot blasting machine is used, dust-containing gas generated by the shot blasting machine is sucked into the device through a fan, filtered through a filter screen in the device and discharged out of the device, but after the filter screen is used for a long time, a large amount of dust can be accumulated on the surface, so that the filtering effect is affected, the filter screen is required to be cleaned, the filter screen is inconvenient to clean, the filter screen is required to be cleaned after being disassembled, and the cleaning mode is time-consuming and labor-consuming.

The utility model provides a dust collector to chinese patent bulletin of above-mentioned problem bulletin number is CN217594124U, to the clearance of the inconvenient filter screen of current dust collector, need dismantle the filter screen just can clear up, but this kind of clearance mode waste time and energy's problem, the scheme is proposed now, and it includes the base, the top fixedly connected with dust collection box of base, the left side fixedly connected with dust catcher of dust collection box, the output and the left side fixedly connected with of dust collection box of dust catcher, fixedly connected with filter screen in the dust collection box, the top fixedly connected with headstock of dust collection box can make cleaning brush and filter screen surface laminating through moving the subassembly, can make the cleaning brush rotate through first motor, can make the cleaning brush vertical reciprocating motion through power component simultaneously, can clear up the filter screen like this, need not to dismantle the filter screen, has realized the purpose of being convenient for to the filter screen clearance.

The above solution has been found to still have at least the following drawbacks in practice: during shot blasting processing of workpieces by using a shot blasting machine, some dust and fragments are doped and attached in the shot which is shot at high speed, and the dust and fragments doped in the shot after use cannot be cleaned out, so that dust removal is not comprehensive.

Therefore, it is necessary to design a dust removing device capable of removing dust and debris generated during operation of the shot blasting machine and dust and debris doped in the used shot rapidly and effectively, and removing dust more comprehensively and thoroughly.

Disclosure of Invention

The utility model aims to provide a dust removing device of a shot blasting machine, which can remove dust and fragments generated during operation of a shot blasting machine body and doped dust and fragments in used shots rapidly and effectively, remove dust more comprehensively and thoroughly, screen the used shots rapidly and effectively, and separate complete shots from broken shots so as to facilitate the subsequent reuse effect.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a dust collector of shot-blasting machine, includes shot-blasting machine body, dust removal section of thick bamboo and dust catcher, fixed mounting support on the right side outer wall of shot-blasting machine body, dust removal section of thick bamboo fixed mounting is in the bottom of support, dust catcher fixed mounting is on the right side outer wall of dust removal section of thick bamboo, the discharge pipe that the right side fixed mounting of shot-blasting machine body set up in the slope, the right-hand member fixed mounting of discharge pipe is on the left side wall of dust removal section of thick bamboo, the discharge pipe is linked together with dust removal section of thick bamboo is inside, the suction end fixed mounting of dust catcher has the dust absorption pipe, the dust absorption pipe is kept away from the one end of dust catcher and is extended to in the dust removal section of thick bamboo, the discharge end fixed mounting of dust absorption pipe has the dust exhaust pipe, be provided with the screening dust subassembly that is arranged in screening pellet on the dust removal section of thick bamboo.

Through adopting above-mentioned technical scheme, the shot-blasting machine body is used for throwing ball processing to work piece surface, and the suction that produces when utilizing the dust catcher operation can be with the inside dust piece of shot-blasting machine body and the pellet that uses inhale in the dust removal section of thick bamboo to follow-up dust removal processing, screening dust removal subassembly are arranged in screening the dust piece that mixes in the pellet, and the discharge pipe is arranged in carrying dust piece that produces in the inside processing space of shot-blasting machine body and the pellet after using to in the dust removal section of thick bamboo.

The utility model is further provided with: the screening dust removal assembly comprises a coarse screen, a fine screen, a vertical shaft, an upper stirring part, a lower stirring part and a motor, wherein the coarse screen and the fine screen are fixedly installed in a dust removal barrel, the coarse screen is located above the fine screen, the vertical shaft is rotatably installed in the dust removal barrel, a first through hole is formed in the center of the top of the coarse screen, a second through hole is formed in the center of the top of the fine screen, the bottom end of the vertical shaft sequentially penetrates through the first through hole and the second through hole, the upper stirring part and the lower stirring part are fixedly installed on the vertical shaft, the upper stirring part is located at the top of the coarse screen, the lower stirring part is located at the top of the fine screen, the motor is fixedly installed at the top of the dust removal barrel, and the top of the vertical shaft extends out of the dust removal barrel and is fixedly connected with the output shaft end of the motor.

Through adopting above-mentioned technical scheme, the coarse screen is with carrying out interception screening to complete pellet for complete pellet remains on the coarse screen, and the fine screen is used for carrying out interception screening to broken pellet, makes broken pellet remain on the fine screen, utilizes the controllable vertical axis of motor to drive and dials material spare and lower stirring piece rotatory, utilizes to dial the complete pellet removal that the material spare can promote on the coarse screen that leaves, utilizes the broken pellet removal that the material spare can promote the material spare and leave on the fine screen, and then can improve screening efficiency.

The utility model is further provided with: the screening dust removal assembly further comprises a first elastic rubber rod, a first knocking ball, two first collision posts, a second elastic rubber rod, a second knocking ball and two second collision posts, wherein the first elastic rubber rod is fixedly installed on the vertical shaft and located between the coarse screen and the fine screen, the first knocking ball is fixedly installed at one end, far away from the vertical shaft, of the first elastic rubber rod, the two first collision posts are fixedly installed at the bottom of the coarse screen, the two first collision posts are symmetrically arranged on two sides of the vertical shaft, the second elastic rubber rod is fixedly installed on the vertical shaft and located below the fine screen, the second knocking ball is fixedly installed at one end, far away from the vertical shaft, of the second elastic rubber rod, the two second collision posts are fixedly installed at the bottom of the fine screen, and the two second collision posts are symmetrically arranged on two sides of the vertical shaft.

Through adopting above-mentioned technical scheme, utilize the vertical axis to drive first elasticity rubber pole and first striking ball rotatory, the first striking ball of steerable takes place intermittent type nature collision with two first collision posts, can make the shock force transmission that the collision produced give the coarse screen, can effectually prevent broken shot block in the sieve mesh on the coarse screen, further improve the screening efficiency of coarse screen, utilize the vertical axis to drive second elasticity rubber pole and second striking ball rotatory, the second strikes ball and two second collision posts take place intermittent type nature collision, make the shock force transmission that the collision produced give the fine screen, can effectually prevent dust piece block in the sieve mesh on the fine screen, further improve the screening efficiency of fine screen.

The utility model is further provided with: the upper stirring piece comprises an upper scraping plate and a plurality of upper stirring rods, the upper scraping plate is fixedly connected to the vertical shaft, the plurality of upper stirring rods are fixedly arranged at the top of the upper scraping plate and are distributed at equal intervals, and the bottom of the upper scraping plate is in sliding contact with the top of the coarse screen.

Through adopting above-mentioned technical scheme, utilize the scraper blade to scrape the complete pellet removal on the coarse screen, utilize a plurality of last kickoff bars, can increase the range of motion of complete pellet for the coarse screen can carry out quick effectual screening to complete pellet.

The utility model is further provided with: the lower stirring piece comprises a lower scraping plate and a plurality of lower stirring rods, the lower scraping plate is fixedly connected to the vertical shaft, the plurality of lower stirring rods are fixedly arranged at the top of the lower scraping plate and distributed at equal intervals, and the bottom of the lower scraping plate is in sliding contact with the top of the fine screen.

Through adopting above-mentioned technical scheme, utilize the lower scraper blade to scrape broken pellet removal on the fine screen, utilize a plurality of kickdown levers, can increase broken pellet's range of motion for the fine screen can carry out quick effectual screening to broken pellet.

The utility model is further provided with: sealing rings are fixedly installed on the inner wall of the first through hole and the inner wall of the second through hole, and the vertical shaft is in rotary sealing fit with the first through hole and the second through hole through the two sealing rings.

Through adopting above-mentioned technical scheme, utilize two sealing washer, can seal the clearance between vertical axis and the first through-hole and the clearance between vertical axis and the second through-hole respectively.

The utility model is further provided with: the dust removal device comprises a dust removal cylinder, a coarse screen and a fine screen, wherein a first cleaning port located above the coarse screen is formed in the front side inner wall of the dust removal cylinder, a second cleaning port located between the coarse screen and the fine screen is formed in the front side inner wall of the dust removal cylinder, a third cleaning port located below the fine screen is formed in the front side inner wall of the dust removal cylinder, a first cover plate, a second cover plate and a third cover plate are sequentially and fixedly installed on the front side outer wall of the dust removal cylinder from top to bottom through screws, the first cover plate is matched with the first cleaning port, the second cover plate is matched with the second cleaning port, and the third cover plate is matched with the third cleaning port.

Through adopting above-mentioned technical scheme, utilize first clearance mouth and first apron, be convenient for take out the complete pellet that sieves to follow-up direct use once more, utilize second clearance mouth and second apron, be convenient for take out the broken pellet that sieves, so that follow-up reprocessing uses, utilize third clearance mouth and third apron, be convenient for clean and overhaul the space below the fine screen.

The beneficial effects of the utility model are as follows:

1. according to the utility model, the screening and dedusting assembly formed by combining the coarse screen, the fine screen, the vertical shaft, the upper stirring piece, the lower stirring piece, the motor, the first elastic rubber rod, the first striking ball, the two first collision columns, the second elastic rubber rod, the second striking ball and the two second collision columns is utilized, so that dust and fragments generated during operation of the shot blasting machine body and dust and fragments doped in used shots can be quickly and effectively dedusted, the dust can be thoroughly removed, the used shots can be quickly and effectively screened, and the complete shots and broken shots can be separated, so that the shot blasting machine is convenient for subsequent reuse.

2. According to the utility model, the coarse screen is utilized to intercept and screen the complete pellets, so that the complete pellets are reserved on the coarse screen, the screened complete pellets can be directly used again, the fine screen is used for intercepting and screening the broken pellets, the broken pellets are reserved on the fine screen, and the screened broken pellets can be reprocessed and used conveniently.

3. The utility model can push the complete pellets remained on the coarse screen to move by using the upper shifting piece formed by combining the upper scraping plate and the plurality of upper shifting rods, and can push the broken pellets remained on the fine screen to move by using the lower shifting piece formed by combining the lower scraping plate and the plurality of lower shifting rods, so that the screening and dust removing efficiency of the pellets and dust scraps can be improved.

4. Through utilizing the rotation of first striking ball, can take place intermittent type nature collision with two first collision posts, can give the coarse screen with the vibrations power transmission that the collision produced, can effectually prevent that broken shot card from blocking in the sieve mesh on the coarse screen, utilize the rotation of second striking ball, can take place intermittent type nature collision with two second collision posts, can give the fine screen with the vibrations power transmission that the collision produced, can effectually prevent that dust piece card from blocking in the sieve mesh on the fine screen, can further improve the screening dust removal efficiency to shot and dust piece.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of the present embodiment.

Fig. 2 is a schematic view of a partially sectional structure in front view of the present embodiment.

Fig. 3 is an enlarged schematic view of the portion a in fig. 2.

In the figure, 1, a shot blasting machine body; 2. a dust removal cylinder; 3. a bracket; 4. a discharge pipe; 5. a dust collector; 6. a dust collection pipe; 7. a dust exhaust pipe; 8. coarse screen; 9. fine screen; 10. a vertical axis; 11. a material stirring piece is arranged on the upper part; 12. a lower kick-out piece; 13. a motor; 14. a first elastic rubber rod; 15. a first striking ball; 16. a first collision post; 17. a second elastic rubber rod; 18. a second striking ball; 19. a second collision post; 20. a first cover plate; 21. a second cover plate; 22. and a third cover plate.

Detailed Description

The technical scheme of the present utility model will be clearly and completely described in connection with specific embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

Referring to fig. 1, 2 and 3, the present utility model provides a dust removing device of a shot blasting machine, including: shot-blasting machine body 1, dust removal section of thick bamboo 2, dust catcher 5 and screening dust removal subassembly, wherein:

the right outer wall of the shot blasting machine body 1 is fixedly provided with a bracket 3, the dust collection tube 2 is fixedly arranged at the bottom of the bracket 3, the bracket 3 can be made of stainless steel materials, the bracket 3 has good strength, the bracket 3 can be of an F-shaped structure, and can further stably bear the dust collection tube 2, the dust collector 5 is fixedly arranged on the right outer wall of the dust collection tube 2, the right side of the shot blasting machine body 1 is fixedly provided with a discharge tube 4 which is obliquely arranged, the right end of the discharge tube 4 is fixedly arranged on the left side wall of the dust collection tube 2, the discharge tube 4 is communicated with the interior of the dust collection tube 2, the suction end of the dust collector 5 is fixedly provided with a dust collection tube 6, one end of the dust collection tube 6 away from the dust collector 5 extends into the dust collection tube 2, the discharge end of the dust collection tube 6 is fixedly provided with a dust discharge tube 7, and the one end of the dust discharge tube 7 away from the dust collection tube 5 can be fixedly connected with an external dust collection box or a dust collection bag, the dust collecting box or the dust collecting bag is utilized to store dust and debris, which belongs to the conventional technical means in the prior art, and therefore, the description is omitted herein, a screening and dust removing component for screening the dust and debris in the shot is arranged on the dust collecting barrel 2, the screening and dust removing component comprises a coarse screen 8, a fine screen 9, a vertical shaft 10, an upper stirring piece 11, a lower stirring piece 12, a motor 13, a first elastic rubber rod 14, a first striking ball 15, two first striking columns 16, a second elastic rubber rod 17, a second striking ball 18 and two second striking columns 19, the coarse screen 8 and the fine screen 9 are fixedly arranged in the dust collecting barrel 2, the coarse screen 8 is positioned above the fine screen 9, the vertical shaft 10 is rotatably arranged in the dust collecting barrel 2, a first through hole is formed in the top center position of the coarse screen 8, a second through hole is formed in the top center position of the fine screen 9, the bottom end of the vertical shaft 10 sequentially penetrates through the first through hole and the second through hole, the upper stirring piece 11 and the lower stirring piece 12 are fixedly arranged on the vertical shaft 10, the upper stirring piece 11 is positioned at the top of the coarse screen 8, the lower stirring piece 12 is positioned at the top of the fine screen 9, the motor 13 is fixedly arranged at the top of the dust removing cylinder 2, the top end of the vertical shaft 10 extends out of the dust removing cylinder 2 and is fixedly connected with the output shaft end of the motor 13, the first elastic rubber rod 14 is fixedly arranged on the vertical shaft 10 and is positioned between the coarse screen 8 and the fine screen 9, the first striking ball 15 is fixedly arranged at one end of the first elastic rubber rod 14 far away from the vertical shaft 10, the two first collision columns 16 are fixedly arranged at the bottom of the coarse screen 8, the two first collision columns 16 are symmetrically arranged at two sides of the vertical shaft 10, the second elastic rubber rod 17 is fixedly arranged on the vertical shaft 10 and is positioned below the fine screen 9, the second striking ball 18 is fixedly installed at one end of the second elastic rubber rod 17 far away from the vertical shaft 10, two second striking posts 19 are fixedly installed at the bottom of the fine screen 9, two second striking posts 19 are symmetrically arranged at two sides of the vertical shaft 10, it is noted that the first elastic rubber rod 14, the first striking ball 15, the second elastic rubber rod 17 and the second striking ball 18 are all made of rubber materials with good elasticity, the two first striking posts 16 and the two second striking posts 19 are all made of stainless steel materials, the total length dimension of the first elastic rubber rod 14 and the first striking ball 15 is slightly larger than the vertical distance dimension between the first striking post 16 and the vertical shaft 10, so that the first striking ball 15 can effectively collide with the first striking post 16, the total length dimension of the second elastic rubber rod 17 and the second striking ball 18 is slightly larger than the vertical distance dimension between the second striking post 19 and the vertical shaft 10, so that the second striking ball 18 can effectively collide with the second collision post 19.

In this embodiment, the upper stirring member 11 includes an upper scraper and a plurality of upper stirring rods, the upper scraper is fixedly connected to the vertical shaft 10, the plurality of upper stirring rods are fixedly installed at the top of the upper scraper and are distributed at equal intervals, the bottom of the upper scraper is in sliding contact with the top of the coarse screen 8, the lower stirring member 12 includes a lower scraper and a plurality of lower stirring rods, the lower scraper is fixedly connected to the vertical shaft 10, the plurality of lower stirring rods are fixedly installed at the top of the lower scraper and are distributed at equal intervals, the bottom of the lower scraper is in sliding contact with the top of the fine screen 9, and it is required to be explained that the upper scraper and the upper stirring rods are integrally cast and formed, and the lower scraper and the plurality of lower stirring rods are integrally cast and formed.

In this embodiment, sealing rings are fixedly installed on the inner wall of the first through hole and the inner wall of the second through hole, and the vertical shaft 10 is in rotary sealing fit with the first through hole and the second through hole through two sealing rings respectively.

In this embodiment, offer the first clearance mouth that is located coarse screen 8 top on the front side inner wall of dust removal section of thick bamboo 2, offer the second clearance mouth that is located between coarse screen 8 and the fine screen 9 on the front side inner wall of dust removal section of thick bamboo 2, offer the third clearance mouth that is located the fine screen 9 below on the front side inner wall of dust removal section of thick bamboo 2, there are first apron 20, second apron 21 and third apron 22 through the screw from top to bottom fixed mounting in proper order on the front side outer wall of dust removal section of thick bamboo 2, first apron 20 and first clearance mouth looks adaptation, second apron 21 and second clearance mouth looks adaptation, third apron 22 and third clearance mouth looks adaptation.

In this embodiment, a control switch is installed on the shot blasting machine body 1, and the dust collector 5 and the motor 13 are electrically connected with the control switch, so that the control switch can be used for controlling the running operation of the shot blasting machine body 1, and also can control the dust collector 5 and the motor 13 to run.

Through the structure, the dust removing device of the shot blasting machine provided by the utility model can remove dust and fragments generated during operation of the shot blasting machine body 1 and doped dust and fragments in the used shots rapidly and effectively, dust can be removed more comprehensively and thoroughly, the used shots can be screened rapidly and effectively, complete shots and broken shots can be separated, so that the subsequent reuse is facilitated, during specific operation, workpieces are placed into the shot blasting machine body 1, the shot blasting machine body 1 is started to operate, the dust collector 5 and the motor 13 are started to operate during shot blasting processing on the surfaces of the workpieces by using the shot which is sprayed out, the dust and fragments generated in the shot blasting machine body 1 can be controlled to enter the dust removing cylinder 2 through the suction force generated during operation of the dust collector 5, the complete shots can be screened and intercepted by using the coarse screen 8 at the moment, the complete shots are reserved in the upper space of the coarse screen 8, the broken shots and the dust can pass through the dropping screen mesh 9 of the fine screen, the fine screen mesh is continuously moved through the fine screen mesh 9 of the fine screen, and the fine screen mesh 11 is continuously moved through the fine screen mesh 11, the fine screen mesh is continuously moved through the fine screen mesh 9, and the fine screen mesh is continuously moved through the fine screen mesh 11, and the fine screen mesh is continuously is further removed through the fine screen mesh 11, the device can push complete pellets to move above the coarse screen 8, the lower stirring piece 12 is utilized to rotate, broken pellets can be pushed to move above the fine screen 9, further, screening and dust removing efficiency of the pellets and dust chips can be improved, the rotation of the first hitting balls 15 can generate intermittent collision with two first hitting posts 16, vibration force generated by the collision can be transmitted to the coarse screen 8, the broken pellets can be effectively prevented from being blocked in sieve holes on the coarse screen 8, the rotation of the second hitting balls 18 can generate intermittent collision with two second hitting posts 19, vibration force generated by the collision can be transmitted to the fine screen 9, the dust chips can be effectively prevented from being blocked in sieve holes on the fine screen 9, screening and dust removing efficiency of the pellets and dust chips can be further improved, after working is finished, the operation of the dust collector body 1, the breaker 5 and the motor 13 is stopped, the first cover plate 20 is detached, the complete pellets can be taken out for direct use again, the second cover plate 21 is detached, and the subsequent processing of the broken pellets can be conveniently and reused.

The dust removing device of the shot blasting machine provided by the utility model is described in detail. The principles and embodiments of the present utility model have been described herein with reference to specific examples, which are intended to be merely illustrative of the methods of the present utility model and their core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (7)

1. The utility model provides a dust collector of shot-blasting machine, its characterized in that, including shot-blasting machine body (1), dust removal section of thick bamboo (2) and dust catcher (5), fixed mounting support (3) on the right side outer wall of shot-blasting machine body (1), dust removal section of thick bamboo (2) fixed mounting is in the bottom of support (3), dust catcher (5) fixed mounting is in on the right side outer wall of dust removal section of thick bamboo (2), the right side fixed mounting of shot-blasting machine body (1) has discharge pipe (4) that the slope set up, the right-hand member fixed mounting of discharge pipe (4) is in on the left side wall of dust removal section of thick bamboo (2), discharge pipe (4) with dust removal section of thick bamboo (2) inside is linked together, the suction end fixed mounting of dust catcher (5) has dust absorption pipe (6), dust pipe (6) one end extension to in dust removal section of thick bamboo (2), the discharge end fixed mounting of dust pipe (6) has dust exhaust pipe (7), be provided with the dust removal subassembly that is arranged in screening the pellet on dust removal section of thick bamboo (2).

2. The dust removing apparatus of a shot blasting machine according to claim 1, wherein: the screening and dedusting assembly comprises a coarse screen (8), a fine screen (9), a vertical shaft (10), an upper stirring piece (11), a lower stirring piece (12) and a motor (13), wherein the coarse screen (8) and the fine screen (9) are fixedly installed in the dedusting barrel (2), the coarse screen (8) is located above the fine screen (9), the vertical shaft (10) is rotatably installed in the dedusting barrel (2), a first through hole is formed in the central position of the top of the coarse screen (8), a second through hole is formed in the central position of the top of the fine screen (9), the bottom end of the vertical shaft (10) sequentially penetrates through the first through hole and the second through hole, the upper stirring piece (11) and the lower stirring piece (12) are fixedly installed on the vertical shaft (10), the upper stirring piece (11) is located at the top of the coarse screen (8), the lower stirring piece (12) is located at the top of the motor (9), and the top of the motor (13) is fixedly installed at the top of the vertical shaft (2), and the top of the motor (13) is fixedly installed at the top of the dedusting barrel (2).

3. The dust removing apparatus of a shot blasting machine according to claim 2, wherein: the screening dust removal assembly further comprises a first elastic rubber rod (14), a first striking ball (15), two first collision posts (16), a second elastic rubber rod (17), a second striking ball (18) and two second collision posts (19), wherein the first elastic rubber rod (14) is fixedly installed on the vertical shaft (10) and located between the coarse screen (8) and the fine screen (9), the first striking ball (15) is fixedly installed at one end, far away from the vertical shaft (10), of the first elastic rubber rod (14), the two first collision posts (16) are fixedly installed at the bottom of the coarse screen (8), the two first collision posts (16) are symmetrically arranged at two sides of the vertical shaft (10), the second elastic rubber rod (17) is fixedly installed on the vertical shaft (10) and located below the fine screen (9), the second striking ball (18) is fixedly installed at one end, far away from the vertical shaft (10), of the second elastic rubber rod (17), and the two second collision posts (19) are fixedly installed at the two sides of the bottom of the coarse screen (8).

4. The dust removing apparatus of a shot blasting machine according to claim 2, wherein: the upper stirring piece (11) comprises an upper scraping plate and a plurality of upper stirring rods, the upper scraping plate is fixedly connected to the vertical shaft (10), the upper stirring rods are fixedly installed at the top of the upper scraping plate and are distributed at equal intervals, and the bottom of the upper scraping plate is in sliding contact with the top of the coarse screen (8).

5. The dust removing apparatus of a shot blasting machine according to claim 2, wherein: the lower stirring piece (12) comprises a lower scraping plate and a plurality of lower stirring rods, the lower scraping plate is fixedly connected to the vertical shaft (10), the lower stirring rods are fixedly installed at the top of the lower scraping plate and distributed at equal intervals, and the bottom of the lower scraping plate is in sliding contact with the top of the fine screen (9).

6. The dust removing apparatus of a shot blasting machine according to claim 2, wherein: sealing rings are fixedly arranged on the inner wall of the first through hole and the inner wall of the second through hole, and the vertical shaft (10) is in rotary sealing fit with the first through hole and the second through hole respectively through the two sealing rings.

7. The dust removing apparatus of a shot blasting machine according to claim 2, wherein: the dust removal device comprises a dust removal cylinder (2), wherein a first cleaning opening positioned above a coarse screen (8) is formed in the front side inner wall of the dust removal cylinder (2), a second cleaning opening positioned between the coarse screen (8) and a fine screen (9) is formed in the front side inner wall of the dust removal cylinder (2), a third cleaning opening positioned below the fine screen (9) is formed in the front side inner wall of the dust removal cylinder (2), a first cover plate (20), a second cover plate (21) and a third cover plate (22) are sequentially and fixedly installed on the front side outer wall of the dust removal cylinder (2) from top to bottom through screws, the first cover plate (20) is matched with the first cleaning opening, the second cover plate (21) is matched with the second cleaning opening, and the third cover plate (22) is matched with the third cleaning opening.