CN118789469A - Auxiliary dust removal device for shot blasting machine - Google Patents

Abstract

The present invention discloses an auxiliary dust removal device for a shot blasting machine, which belongs to the technical field of shot blasting machines, and includes a base, a feeding mechanism for collecting the projectiles used in the shot blasting machine is fixedly provided on the top of the base, and the feeding mechanism includes a feeding frame, a pull-out frame and a folding drainage plate, and the two side walls of the feeding frame are fixedly provided with a plurality of supporting legs, and the supporting legs are fixedly arranged with the base, the pull-out frames are provided with two and are symmetrically arranged in the feeding frame, and the pull-out frames and the feeding frame are slidably arranged inside, the folding drainage plates are provided with two and are symmetrically arranged in the feeding frame, and one side wall of the folding drainage plate is fixedly arranged with one side of the inner wall of the pull-out frame. The present invention sets a screening mechanism, and the screening mechanism can screen all the projectiles, remove the broken projectiles, and collect the complete projectiles. The complete projectiles can be tested later to detect whether they can be used again, thereby saving costs and improving work efficiency.

Description

Auxiliary dust removal device for shot blasting machine

Technical Field

The invention belongs to the technical field of shot blasting machines, and particularly relates to an auxiliary dust removal device for a shot blasting machine.

Background Art

Shot blasting machine refers to casting equipment that uses high-speed projectiles thrown by the shot blaster to clean or strengthen the surface of castings. The shot blasting machine can simultaneously remove sand, core and clean the castings. The shot blasting machine is also called a sandblasting machine or a sandblasting machine. It ejects multiple projectiles through the outlet of the shot blasting machine for strengthening. During the use of the shot blasting machine on the market, a large number of projectiles will fall to the ground and the bottom of the shot blasting machine. If they are not cleaned in time, the quality of the ejected projectiles may be affected during the later use, affecting the casting efficiency.

Summary of the invention

The object of the present invention is to provide an auxiliary dust removal device for a shot blasting machine to solve the problem of handling the projectiles after use in the shot blasting machine.

In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

According to the present invention, an auxiliary dust removal device for a shot blasting machine comprises a base, a feeding mechanism for collecting the projectiles used in the shot blasting machine is fixedly provided on the top of the base, the feeding mechanism comprises a feeding frame, a pull-out frame and a folding guide plate, a plurality of supporting legs are fixedly provided on both side walls of the feeding frame, and the supporting legs are fixedly arranged with the base, the number of the pull-out frames is provided and they are symmetrically arranged in the feeding frame, and the pull-out frame is slidably arranged inside the feeding frame, the number of the folding guide plates is provided and they are symmetrically arranged in the feeding frame, one side wall of the folding guide plate is fixedly arranged with one side of the inner wall of the pull-out frame, and the other side wall of the folding guide plate is fixedly arranged with the feeding frame, a feeding port for feeding projectiles is provided on the feeding frame, a screening mechanism for screening projectiles is fixedly provided at the bottom of the feeding frame near the feeding port, a waste collection box for collecting screened waste is fixedly provided at the top of the base near one side of the screening mechanism, and a waste collection box for re-screening the screened waste is fixedly provided at the top of the base near the other side of the screening mechanism A filtering mechanism for secondary screening, a detection mechanism for detecting filtered projectiles is fixedly provided on a side wall of the top of the base near the filtering mechanism, the detection mechanism comprises a detection box, a third sieve plate, a second electric push rod, a connecting plate, a hardness plate, a first cam, a second cam and a second motor, the detection box is fixedly arranged on the base and the detection box is fixedly arranged on the filter box, and a projectile inlet is opened between the detection box and the filter box, the third sieve plate is rotatably arranged at the center connection of the detection box through a bearing, the first cam and the second cam are both rotatably arranged inside the detection box through a bearing, and the first cam and the second cam are distributed on the left and right sides of the bottom of the third sieve plate, and the first cam and the second cam are chain-driven, the second motor is fixedly arranged on one side of the outer wall of the detection box and the output end is fixedly arranged on the first cam, the second electric push rods are provided in plurality and are fixedly arranged on the inner wall of the detection box, the output ends of the plurality of second electric push rods are all fixedly arranged on the connecting plate, and a plurality of reset springs are fixedly arranged between the connecting plate and the hardness plate.

Preferably, the screening mechanism includes a protective baffle, a primary screening component for screening the projectiles, and a real-time anti-blocking component for preventing the screen holes from being blocked during screening and affecting the screening efficiency. The protective baffle is fixed to the feed frame, the primary screening component is fixed to the bottom of the feed frame and installed in the protective baffle, and the anti-blocking component is fixed to the bottom of the primary screening component.

Preferably, the primary screening assembly includes an arc plate, a first screen plate, a center plate, a sleeve plate, a side plate and a reciprocating member, the arc plates are provided in two numbers and are symmetrically arranged at the bottom of the feed frame in left-right direction, the center plates are provided in two numbers and are symmetrically arranged at the bottom of the feed frame in front-back direction, the first screen plate is located between the two center plates, both side walls of the first screen plate are fixed with rotating shaft rods, and the rotating shaft rods are rotatably arranged on one side wall of the center plate through bearings, the sleeve plates are provided in two numbers and are respectively fixed to the two side walls of the first screen plate, and the sleeve plates are sleeved with the outer walls of the arc plates, and a groove for the first screen plate to slide is opened on the arc plate, the side plates are provided in two numbers and are symmetrically arranged on the first screen plate, and the side plates are rotatably arranged with rotating shafts through torsion springs.

Preferably, the reciprocating part includes a first motor, a first rotating rod, a second rotating rod, a toothed plate, a gear and a limit rod. A vertical rod is fixedly provided on one side wall of the feed frame. The bottom of the vertical rod is fixedly arranged with the first motor. The output end of the first motor is fixedly arranged with the first rotating rod. The connection between the first rotating rod and the second rotating rod is rotatable through a bearing. The connection between the second rotating rod and the toothed plate is rotatable through a bearing. The limit rod is fixedly arranged with the feed frame and the toothed plate is sleeved on the outer wall of the limit rod and slidably arranged with the limit rod. The gear is fixedly arranged with the rotating shaft rod and the gear is meshed with the toothed plate.

Preferably, the anti-blocking component includes an inclined plate body and a cleaning piece, the inclined plate bodies are provided with two and are symmetrically arranged and fixed between two center plates, the number of the cleaning pieces corresponds to the number and positions of the sieve holes, the cleaning piece includes a fixed cylinder, a movable rod and an extrusion head, the fixed cylinder is fixedly arranged with the inclined plate body, the movable rod is slidably arranged inside the fixed cylinder through a reset spring and extends out of the fixed cylinder, and the extrusion head is fixedly arranged with the top of the movable rod.

Preferably, the filtering mechanism includes a filter box, a second sieve plate, a support plate, an abutment plate and a first electric push rod. The filter box is fixed to the base, the second sieve plate is rotatably arranged inside the filter box through a bearing, a plurality of first electric push rods are provided and are fixed to the bottom of the filter bag, the output ends of the plurality of first electric push rods are all fixed to the support plate, a plurality of return springs are fixed between the support plate and the abutment plate, and the abutment plate is abutted against the bottom of the second sieve plate.

The present invention is beneficial in that:

The present invention provides a screening mechanism, which can screen all the projectiles, remove the broken projectiles, collect the complete projectiles, and later test the complete projectiles to see whether they can be used again, thereby saving costs and improving work efficiency.

The present invention provides a filtering mechanism, which can perform secondary screening on the screened pellets, thereby avoiding omission of the pellets after the primary screening, improving the screening accuracy and enhancing the work efficiency.

The present invention sets a detection mechanism to detect the hardness of complete pellets. The pellets that cannot be reused will be crushed and screened again while being crushed. The pellets that are not crushed can be reused and remain on the filter plate waiting for secondary utilization.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention, so that other features, purposes and advantages of the present invention become more obvious. The accompanying drawings of the exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

FIG1 is a schematic diagram of the overall structure of an auxiliary dust removal device for a shot blasting machine according to the present invention;

FIG2 is a second schematic diagram of the overall structure of an auxiliary dust removal device for a shot blasting machine according to the present invention;

3 is a third schematic diagram of the overall structure of an auxiliary dust removal device for a shot blasting machine according to the present invention;

FIG4 is a schematic diagram of the overall cross-sectional structure of the present invention;

FIG5 is an enlarged structural schematic diagram of the feeding mechanism of the present invention;

6 is a schematic diagram of the connection structure between the feeding mechanism and the screening mechanism of the present invention;

FIG7 is an enlarged structural schematic diagram of the screening mechanism of the present invention;

FIG8 is a second enlarged structural schematic diagram of the screening mechanism of the present invention;

9 is an enlarged schematic diagram of the structure of the cleaning member of the present invention;

FIG10 is a schematic cross-sectional view of the filtering mechanism;

FIG. 11 is a schematic cross-sectional view of the detection mechanism of the present invention.

Description of reference numerals:

1. Base; 2. Feeding mechanism; 21. Feeding frame; 22. Pull-out frame; 23. Folding guide plate; 24. Support leg; 25. Feeding port; 3. Screening mechanism; 31. Protective baffle; 32. Primary screening assembly; 321. Curved plate; 322. First screen plate; 323. Center plate; 324. Sleeve plate; 325. Side plate; 326. Reciprocating member; 3261. First motor; 3262. First rotating rod; 3263. Second rotating rod; 3264. Tooth plate; 3265. Gear; 3266. Limit Rod; 33, anti-clogging component; 331, inclined plate; 332, cleaning piece; 3321, fixed cylinder; 3322, movable rod; 3323, extrusion head; 4, collecting box; 5, filtering mechanism; 51, filtering box; 52, second sieve plate; 53, supporting plate; 54, abutting plate; 55, first electric push rod; 6, detecting mechanism; 61, detecting box; 62, third sieve plate; 63, second electric push rod; 64, connecting plate; 65, hardness plate; 66, first cam; 67, second cam; 68, second motor.

DETAILED DESCRIPTION

In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

As shown in Figures 1 to 11, an auxiliary dust removal device for a shot blasting machine according to the present invention includes a base 1, a feeding mechanism 2 for collecting the projectiles used in the shot blasting machine is fixedly provided on the top of the base 1, the feeding mechanism 2 includes a feeding frame 21, a pull-out frame 22 and a folding guide plate 23, a plurality of supporting legs 24 are fixedly provided on both side walls of the feeding frame 21, and the supporting legs 24 are fixedly arranged with the base 1, the pull-out frame 22 is provided with two and symmetrically arranged in the feeding frame 21, and the pull-out frame 22 is slidably arranged inside the feeding frame 21, the folding guide plate 23 is provided with two and symmetrically arranged in the feeding frame 21, and one side wall of the folding guide plate 23 is symmetrically arranged with the pull-out frame 22, and the pull-out frame 22 is symmetrically arranged with the feed frame 21. One side of the inner wall of the frame 22 is fixedly arranged, and the other side wall of the folding guide plate 23 is fixedly arranged with the feed frame 21, a feed port 25 for feeding pellets is opened on the feed frame 21, a screening mechanism 3 for screening pellets is fixedly arranged at the bottom of the feed frame 21 near the feed port 25, a waste collection box 4 for collecting screened waste is fixedly arranged at the top of the base 1 near one side of the screening mechanism 3, and a filtering mechanism 5 for re-screening the screened waste is fixedly arranged at the top of the base 1 near the other side of the screening mechanism 3, and a detection mechanism 6 for detecting the filtered pellets is fixedly arranged at one side wall of the top of the base 1 near the filtering mechanism 5;

First, the device is transferred to the place where it is needed to be used, and the shot blasting machine projectiles that have been used or need to be screened are introduced into the feeding mechanism 2, and the screening process is carried out through the drainage of the feeding mechanism 2. The capacity of the feeding mechanism 2 is expanded according to the volume of the material, and the pull-out frame 22 can be pulled outward to slide inside the feeding frame 21. As the pull-out frame 22 moves, the folding guide plate 23 is unfolded accordingly, and the folding guide plate 23 set in an inclined state allows the poured projectiles to enter the feeding port 25 in sequence, and the wavy folding guide plate 23 slows down the falling speed of the projectiles, so that the projectiles are fed in an orderly manner.

Among them, the screening mechanism 3 includes a protective baffle 31, a primary screening component 32 for screening the projectiles, and a real-time anti-blocking component 33 for preventing the screen holes from being blocked during screening and affecting the screening efficiency. The protective baffle 31 is fixedly arranged with the feed frame 21, the primary screening component 32 is fixedly provided with and installed in the protective baffle 31 at the bottom of the feed frame 21, and the anti-blocking component 33 is fixedly arranged with the bottom of the primary screening component 32. Preferably, the primary screening component 32 includes an arc plate 321, a first screen plate 322, a center plate 323, a sleeve plate 324, a side plate 325 and a reciprocating member 326. The number of arc plates 321 is provided with two and they are symmetrically arranged at the feed frame 21. At the bottom of the frame 21, two center plates 323 are provided and are symmetrically provided at the bottom of the feed frame 21, the first screen plate 322 is located between the two center plates 323, both side walls of the first screen plate 322 are fixed with a shaft rod, and the shaft rod is rotatably provided on one side wall of the center plate 323 through a bearing, two sleeve plates 324 are provided and are respectively fixed to the two side walls of the first screen plate 322, and the sleeve plates 324 are sleeved with the outer wall of the arc plate 321, and a groove for the first screen plate 322 to slide is opened on the arc plate 321, and two side plates 325 are provided and are symmetrically provided on the first screen plate 322, and the side plates 325 are rotatably provided with the shaft through a torsion spring;

Preferably, the reciprocating member 326 includes a first motor 3261, a first rotating rod 3262, a second rotating rod 3263, a tooth plate 3264, a gear 3265 and a limiting rod 3266. A vertical rod is fixedly provided on one side wall of the feed frame 21. The bottom of the vertical rod is fixedly provided with the first motor 3261. The output end of the first motor 3261 is fixedly provided with the first rotating rod 3262. The connection between the first rotating rod 3262 and the second rotating rod 3263 is rotatably provided through a bearing. The connection between the second connecting rod and the tooth plate 3264 is rotatably provided through a bearing. The limiting rod 3266 is fixedly provided with the feed frame 21 and the tooth plate 3264 is sleeved on the outer wall of the limiting rod 3266 and is slidably provided with the limiting rod 3266. The gear 3265 is fixedly provided with the rotating shaft rod and the gear 3265 is meshed with the tooth plate 3264.

The pellets enter the screening mechanism 3 through the feed inlet 25 for screening. First, the pellets fall onto the first screen plate 322 in an orderly manner. The incompletely crushed pellets fall onto the inclined plate body 331 through the screen holes. The inclined inclined plate body 331 plays a role of drainage, so that the waste pellets on both sides enter the waste collection box 4 and the filter box 51. During the screening process, in order to accelerate the screening efficiency, the first motor 3261 is started to drive the first rotating rod 3262 to rotate, and the first rotating rod 3262 pulls the second rotating rod 3263 to move, so that the second rotating rod 3263 drives the tooth plate 3264 to reciprocate on the limit rod 3266, so that the tooth plate 3264 drives the gear 3265 to reciprocate, so that the gear 3265 drives the rotating shaft rod to rotate, and then drives the first screen plate 322 to swing back and forth. While rotating back and forth, the sleeve plate 324 slides on the outer wall of the arc plate 321 to speed up the screening. The stabilizing effect of the first sieve plate 322 is strengthened, and the pellets on the first sieve plate 322 are continuously moved and adjusted to enhance the filtering effect. During the rotation, the inclination angle of the inclined plate body 331 is consistent with the angle of the first sieve plate 322 after rotation. Therefore, in the process of the reciprocating rotation of the first sieve plate 322, the extrusion head 3323 continuously squeezes the sieve holes to avoid clogging of the sieve holes and affecting the screening efficiency. When the broken pellets are filtered, no pellets remain on the inclined plate body 331, and the intact pellets are retained on the first sieve plate 322. When there are no pellets remaining on the inclined plate body 331, the first sieve plate 322 is rotated to an inclined state with the right higher and the left lower and then stops, expanding the feed slot on one side of the arc plate 321, causing the side plate 325 to lose its abutment force and unfold under the action of the torsion spring. The unfolded side plate 325 plays a drainage role, allowing the complete pellets to enter the filter box 51 in sequence for secondary filtration.

Secondly, the anti-clogging component 33 includes an inclined plate body 331 and a cleaning piece 332. The number of inclined plate bodies 331 is two and symmetrically arranged. The inclined plate bodies 331 are fixedly arranged between the two center plates 323. The number of cleaning pieces 332 corresponds to the number and position of the sieve holes. The cleaning piece 332 includes a fixed cylinder 3321, a movable rod 3322 and an extrusion head 3323. The fixed cylinder 3321 is fixedly arranged with the inclined plate body 331. The movable rod 3322 is slidably arranged inside the fixed cylinder 3321 through a return spring and extends out of the fixed cylinder 3321. The extrusion head 3323 is fixedly arranged with the top of the movable rod 3322. Preferably, the filtering mechanism 5 includes a filter box 51, a second sieve plate 52, a supporting plate 53, an abutment plate 54 and a first electric push rod 55. The filter box 51 is fixedly arranged with the base 1 The second sieve plate 52 is rotatably arranged inside the filter box 51 through a bearing. A plurality of first electric push rods 55 are provided and fixed to the bottom of the filter bag. The output ends of the plurality of first electric push rods 55 are fixed to the supporting plate 53. A plurality of return springs are fixed between the supporting plate 53 and the abutting plate 54. The abutting plate 54 is abutted against the bottom of the second sieve plate 52. When the pellets continuously fall into the filter box 51, the second sieve plate 52 is subjected to the force of continuous falling. Under the rebound force of the return spring, the second sieve plate 52 continuously fluctuates, thereby vibrating the pellets, so that the unfiltered pellets are filtered for the second time, and the filtered pellets remain at the bottom of the filter box 51. After the filtering is completed, the first electric push rod 55 is started to drive the second sieve plate 52 to descend, so that the pellets on the second sieve plate 52 enter the detection box 61.

Then, the detection mechanism 6 includes a detection box 61, a third sieve plate 62, a second electric push rod 63, a connecting plate 64, a hardness plate 65, a first cam 66, a second cam 67 and a second motor 68. The detection plate is fixedly arranged on the base 1 and the detection box 61 is fixedly arranged on the filter box 51, and a shot inlet is opened between the detection box 61 and the filter box 51. The third sieve plate 62 and the center connection of the detection box 61 are rotatably arranged through a bearing. The first cam 66 and the second cam 67 are both rotatably arranged inside the detection box 61 through a bearing, and the first cam 66 and the second cam 67 are distributed on the left and right at the bottom of the third sieve plate 62, and the first cam 66 and the second cam 67 are chain-driven. The second motor 68 is fixedly arranged on one side of the outer wall of the detection box 61 and the output end is fixedly arranged on the first cam 66. There are multiple second electric push rods 63 and they are fixedly arranged on the inner wall of the detection box 61. The output ends of the multiple second electric push rods 63 are all fixedly arranged on the connecting plate 64. Multiple reset springs are fixedly arranged between the connecting plate 64 and the hardness plate 65.

The complete projectiles need to be tested for their recycling rate based on their hardness. The remaining projectiles are spread on the third sieve plate 62. First, the second motor 68 is started. The second motor 68 drives the first cam 66 to rotate, so that the first cam 66 drives the second cam 67 to rotate. It can be seen from the figure that the length directions of the first cam 66 and the second cam 67 are inconsistent. The rotation of the two cams drives the third sieve plate 62 to rotate up and down, thereby driving the projectiles on the third sieve plate 62 to be spread on the third sieve plate 62, and then the third sieve plate 62 is rotated to a horizontal state. The second electric push rod 63 is started to drive the hardness plate 65 to squeeze the projectiles. The squeezing force is set to test the hardness of the projectiles. Waste materials that fail the test fall to the bottom of the test box 61, and the box can be opened for waste treatment and sustainable material projectile collection.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made should be included in the protection scope of the present invention.

Claims (6)

1. An auxiliary dust removal device for a shot blasting machine, comprising a base (1), characterized in that: a feeding mechanism (2) for collecting the projectiles used in the shot blasting machine is fixedly provided on the top of the base (1), the feeding mechanism (2) comprising a feeding frame (21), a pull-out frame (22) and a folding guide plate (23), a plurality of supporting legs (24) are fixedly provided on both side walls of the feeding frame (21), and the supporting legs (24) are fixedly arranged on the base (1), the pull-out frame (22) is provided with two and is symmetrically arranged in the feeding frame (21), and the pull-out frame (22) is slidably arranged inside the feeding frame (21), the folding guide plate (23) is provided with two and is symmetrically arranged on the feeding frame (21), 1), one side wall of the foldable guide plate (23) is fixedly arranged on one side of the inner wall of the drawer frame (22), and the other side wall of the foldable guide plate (23) is fixedly arranged on the feed frame (21), a feed port (25) for feeding pellets is provided on the feed frame (21), a screening mechanism (3) for screening pellets is fixedly arranged at the bottom of the feed frame (21) near the feed port (25), a waste collection box (4) for collecting screened waste is fixedly arranged at the top of the base (1) near one side of the screening mechanism (3), and a filtering mechanism (5) for re-screening the screened waste is fixedly arranged at the top of the base (1) near the other side of the screening mechanism (3), and the base (1) A detection mechanism (6) for detecting filtered pellets is fixedly provided on a side wall of the top close to the filtering mechanism (5), the detection mechanism (6) comprising a detection box (61), a third sieve plate (62), a second electric push rod (63), a connecting plate (64), a hardness plate (65), a first cam (66), a second cam (67) and a second motor (68), the detection box (61) is fixedly arranged on the base (1) and the detection box (61) is fixedly arranged on the filtering box (51), and a pellet inlet is provided between the detection box (61) and the filtering box (51), the central connection between the third sieve plate (62) and the detection box (61) is rotatably arranged via a bearing, and the first cam The first cam (66) and the second cam (67) are both rotatably arranged inside the detection box (61) through bearings, and the first cam (66) and the second cam (67) are distributed on the left and right sides at the bottom of the third sieve plate (62), and the first cam (66) and the second cam (67) are chain-driven, the second motor (68) is fixedly arranged on one side of the outer wall of the detection box (61) and the output end is fixedly arranged on the first cam (66), a plurality of second electric push rods (63) are provided and are fixedly arranged on the inner wall of the detection box (61), the output ends of the plurality of second electric push rods (63) are all fixedly arranged on the connecting plate (64), and a plurality of return springs are fixedly arranged between the connecting plate (64) and the hardness plate (65). 2. An auxiliary dust removal device for a shot blasting machine according to claim 1, characterized in that: the screening mechanism (3) comprises a protective baffle (31), a primary screening component (32) for screening the projectiles, and a real-time anti-blocking component (33) for preventing the screen holes from being blocked during screening and affecting the screening efficiency, the protective baffle (31) and the feed frame (21) are fixedly arranged, the primary screening component (32) and the bottom of the feed frame (21) are fixedly provided and installed in the protective baffle (31), and the anti-blocking component (33) and the bottom of the primary screening component (32) are fixedly arranged. 3. An auxiliary dust removal device for a shot blasting machine according to claim 2, characterized in that: the primary screening component (32) comprises an arc plate (321), a first screen plate (322), a center plate (323), a sleeve plate (324), a side plate (325) and a reciprocating member (326), the arc plates (321) are provided in two numbers and are symmetrically arranged at the bottom of the feed frame (21), the center plates (323) are provided in two numbers and are symmetrically arranged at the bottom of the feed frame (21), the first screen plate (322) is located between the two center plates (323) The first sieve plate (322) has two side walls fixedly provided with rotating shaft rods, and the rotating shaft rods are rotatably arranged on one side wall of the center plate (323) via bearings. The sleeve plates (324) are provided in two numbers and are respectively fixedly arranged on the two side walls of the first sieve plate (322). The sleeve plates (324) are sleeved with the outer wall of the arc plate (321), and the arc plate (321) is provided with a groove for the first sieve plate (322) to slide. The side plates (325) are provided in two numbers and are symmetrically arranged on the first sieve plate (322). The side plates (325) are rotatably arranged with the rotating shaft via torsion springs. 4. An auxiliary dust removal device for a shot blasting machine according to claim 3, characterized in that: the reciprocating member (326) comprises a first motor (3261), a first rotating rod (3262), a second rotating rod (3263), a tooth plate (3264), a gear (3265) and a limit rod (3266), a vertical rod is fixedly provided on one side wall of the feed frame (21), the bottom of the vertical rod is fixedly provided with the first motor (3261), the output end of the first motor (3261) is fixedly provided with the first rotating rod (3262), The first rotating rod (3262) and the second rotating rod (3263) are rotatably arranged at a connection point via a bearing, the second rotating rod (3263) and the tooth plate (3264) are rotatably arranged at a connection point via a bearing, the limiting rod (3266) and the feeding frame (21) are fixedly arranged, and the tooth plate (3264) is sleeved on the outer wall of the limiting rod (3266) and is slidably arranged with the limiting rod (3266), and the gear (3265) and the rotating shaft rod are fixedly arranged, and the gear (3265) and the tooth plate (3264) are meshed. 5. An auxiliary dust removal device for a shot blasting machine according to claim 2, characterized in that: the anti-blocking component (33) includes an inclined plate body (331) and a cleaning piece (332), the inclined plate body (331) is provided with two and symmetrically arranged, and the inclined plate body (331) is fixedly arranged between two center plates (323), the number of the cleaning pieces (332) corresponds to the number and position of the sieve holes, the cleaning piece (332) includes a fixed cylinder (3321), a movable rod (3322) and an extrusion head (3323), the fixed cylinder (3321) is fixedly arranged with the inclined plate body (331), the movable rod (3322) is slidably arranged inside the fixed cylinder (3321) through a return spring and extends out of the fixed cylinder (3321), and the extrusion head (3323) is fixedly arranged with the top of the movable rod (3322). 6. An auxiliary dust removal device for a shot blasting machine according to claim 2, characterized in that: the filtering mechanism (5) comprises a filter box (51), a second sieve plate (52), a supporting plate (53), an abutting plate (54) and a first electric push rod (55), the filter box (51) is fixedly arranged with the base (1), the second sieve plate (52) is rotatably arranged inside the filter box (51) through a bearing, a plurality of first electric push rods (55) are provided and are fixedly arranged with the bottom of the filter bag, the output ends of the plurality of first electric push rods (55) are all fixedly arranged with the supporting plate (53), a plurality of return springs are fixedly arranged between the supporting plate (53) and the abutting plate (54), and the abutting plate (54) is abutted with the bottom of the second sieve plate (52).