Shot blasting machine for spraying pretreatment

Abstract

The utility model relates to the technical field of shot blasting cleaning machines, in particular to a shot blasting cleaning machine for spraying pretreatment, which is convenient for dust removal treatment and screening and recycling of sand shots, and improves convenience and practicability. Comprising a shot blasting mechanism; the device further comprises a screening mechanism, a recycling mechanism, a dust removal mechanism, an impurity treatment mechanism and a cleaning mechanism, the screening mechanism is installed on the inner wall of the screening mechanism, the recycling mechanism is installed on the screening mechanism, the dust removal mechanism is installed on the side wall of the shot blasting mechanism, the impurity treatment mechanism is installed on the dust removal mechanism, and the cleaning mechanism is installed on the inner wall of the shot blasting mechanism. By opening the shot blasting mechanism, turning and stirring and shot blasting cleaning can be conveniently conducted on parts, sand shots obtained after shot blasting can be conveniently screened through the screening mechanism, the sand shots can be conveniently recycled through the recycling mechanism, convenience is improved, and the temperature in the shot blasting mechanism is reduced and dust in the shot blasting mechanism is removed through the dust removal mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of shot blasting cleaning machines, in particular to a shot blasting cleaning machine for pre-spraying treatment. Background Art

[0002] The working principle of the shot blasting machine is to shoot the shot blasting medium to the surface of the workpiece through a high-speed rotating shot blasting machine, and use the impact and cutting effect of the shot blasting medium to remove dirt and impurities on the surface of the workpiece. At the same time, the shot blasting machine can also adjust the parameters such as the particle size, flow rate and spray angle of the shot blasting medium to achieve different degrees of cleaning and treatment effects on the workpiece surface.

[0003] The existing shot blasting machine, such as the prior art with application number CN202122837867.0, includes a frame, a shot blasting machine body, a sound insulation cover, a sound layer, a sound insulation layer, a shock absorbing layer, a connecting seat, a buffer spring and a telescopic rod, etc. The sound insulation cover includes a sound absorbing layer, a sound insulation layer and a shock absorbing layer from the inside to the outside. The sound insulation cover has excellent sound insulation and noise reduction performance through the sequential superposition design of the sound absorbing layer, the sound insulation layer and the shock absorbing layer.

[0004] However, the prior art generates a large amount of dust during shot blasting, and the prior art is not convenient for handling the dust, which reduces the quality of the working environment. The prior art is also not convenient for screening and recycling the sand shots, which reduces the practicality. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a shot blasting cleaning machine for pre-spraying treatment, which is convenient for dust removal, screening and recovery of sand and pills, and improves convenience and practicality.

[0006] The utility model discloses a shot blasting cleaning machine for pre-spraying treatment, comprising a shot blasting mechanism; further comprising a screening mechanism, a recycling mechanism, a dust removal mechanism, an impurity treatment mechanism and a cleaning mechanism, wherein the screening mechanism is mounted on the inner wall of the screening mechanism, the recycling mechanism is mounted on the screening mechanism, the dust removal mechanism is mounted on the side wall of the shot blasting mechanism, the impurity treatment mechanism is mounted on the dust removal mechanism, and the cleaning mechanism is mounted on the inner wall of the shot blasting mechanism, and the shot blasting mechanism is opened to facilitate turning over and shot blasting cleaning of parts, the screening mechanism is convenient for screening sand and pills after shot blasting, the recycling mechanism is convenient for recycling sand and pills, and convenience is improved, and the dust removal mechanism cools down the temperature in the shot blasting mechanism and removes impurities. The dust and impurity handling mechanism removes dust from the shot blasting mechanism, and the cleaning mechanism is convenient for cleaning the screened impurities and broken sand and pills; by opening the shot blasting mechanism, it is convenient to stir and shot blast the parts, thereby improving the quality of shot blasting cleaning; the screening mechanism is convenient for screening the sand and pills after shot blasting, removing impurities, improving practicality and the quality of shot blasting cleaning; the recycling mechanism is convenient for recycling the sand and pills, improving convenience; the dust removal mechanism cools down the temperature and removes dust in the shot blasting mechanism, and improves the screening efficiency of the screening mechanism; the impurity handling mechanism removes dust from the shot blasting mechanism, and the cleaning mechanism is convenient for cleaning the screened impurities and broken sand and pills, thereby improving practicality.

[0007] Preferably, the shot blasting mechanism includes a shot blasting bin, a shot blasting machine, a stirring shaft, stirring blades and a first motor. The shot blasting machine is installed at the top of the shot blasting bin, a mounting screen plate is provided on the inner wall of the shot blasting bin, the stirring shaft is rotatably installed on the mounting screen plate, the stirring blades are installed on the stirring shaft, the first motor is installed at the bottom end of the mounting screen plate, and the output end of the first motor is connected to the stirring shaft. First, the parts are added into the shot blasting bin, and the stirring blades are driven to turn the parts by turning on the first motor, and the parts are shot blasted and cleaned by turning on the shot blasting machine to improve the quality of shot blasting cleaning.

[0008] Preferably, the screening mechanism includes a sieve plate, a turntable, an eccentric shaft, a connecting rod and a second motor, one end of the sieve plate is rotatably mounted on the inner wall of the shot blasting bin, the turntable is rotatably mounted on the inner wall of the shot blasting bin, the eccentric shaft is eccentrically mounted on the turntable, one end of the connecting rod is rotatably mounted on the eccentric shaft, the other end of the connecting rod is rotatably mounted on the bottom end of the sieve plate, the second motor is mounted on the side wall of the shot blasting bin, the output end of the second motor is connected to the turntable, and a storage box is provided on the side wall of the shot blasting bin; when the sand and pills after shot blasting fall onto the sieve plate, the turntable is driven to rotate by turning on the second motor, and then the eccentric rotation of the eccentric shaft drives the connecting rod to vibrate the sieve plate up and down, thereby improving the cleaning quality and efficiency of the sand and pills, and the screened sand and pills fall into the storage box.

[0009] Preferably, the recovery mechanism includes an auger shell, an auger shaft, an auger blade, a third motor and a storage box, the auger shell is installed in the storage box, the auger shaft is rotatably installed in the auger shell, the auger blade is installed on the auger shaft, the third motor is installed at the top of the auger shell, the output end of the third motor is connected to the auger shaft, the storage box is installed at the top of the shot blasting bin, and a discharge pipe is provided on the auger shell, which is connected to the storage box; by turning on the third motor to drive the auger shaft to rotate, the sand and shots in the storage box are added into the storage box through the auger blade, thereby completing the recovery of the sand and shots, thereby improving practicality and convenience.

[0010] Preferably, the dust removal mechanism includes an induced draft fan, an air intake pipe, an exhaust fan and an exhaust pipe, the induced draft fan is installed on the side wall of the shot blasting bin, the air intake pipe is installed on the induced draft fan through a pipe, one end of the air intake pipe is installed on the top of the shot blasting bin, and the other end of the air intake pipe is installed on the upper part of the sieve plate, the exhaust fan is installed on the side wall of the shot blasting bin, the exhaust pipe is installed on the exhaust fan through a pipe, the other end of the exhaust pipe is installed on the top of the shot blasting bin, and the other end of the exhaust pipe is installed on the top of the sieve plate; the outside air is added into the shot blasting bin by turning on the induced draft fan, and the air in the shot blasting bin is extracted by turning on the exhaust fan, so as to dissipate the temperature in the shot blasting bin and improve practicality; the efficiency of sand and shot screening is improved by blowing air on the sieve plate, and dust removal in the shot blasting bin is facilitated.

[0011] Preferably, the impurity handling mechanism includes a cyclone dust removal bin, a slag storage box, a filter box and a filter plate. The cyclone dust removal bin is connected to the exhaust pipe through a pipe, the slag storage box is installed at the bottom of the cyclone dust removal bin, the filter box is connected to the cyclone dust removal bin through a pipe, and the filter plate is installed in the filter box; when the exhaust pipe draws out the air with impurities in the shot blasting bin and enters the cyclone dust removal bin for cyclone dust removal, the impurities enter the slag storage box for easy cleaning, and then the air enters the filter box, and the impurities are filtered through the filter plate to improve the quality of dust removal.

[0012] Preferably, the cleaning mechanism includes a lead screw, a guide rod, a cleaning plate and a cleaning motor. The lead screw is rotatably installed on the inner wall of the shot blasting bin, the guide rod is installed on the inner wall of the shot blasting bin, the cleaning plate is slidably installed on the guide rod, the cleaning plate is threadedly matched with the lead screw, the cleaning motor is installed on the side wall of the shot blasting bin, and the output end of the cleaning motor is connected to the lead screw; the guide rod is driven to rotate by turning on the cleaning motor, and then the cleaning plate is driven to slide on the guide rod through the threaded relationship, and then the impurities at the bottom of the shot blasting bin are cleaned through the cleaning plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects: opening the shot blasting mechanism makes it easier to stir and shot blast the parts, thereby improving the quality of shot blasting cleaning; the screening mechanism makes it easier to screen the sand and pills after shot blasting and remove impurities, thereby improving practicality and the quality of shot blasting cleaning; the recycling mechanism makes it easier to recycle the sand and pills, thereby improving convenience; the dust removal mechanism cools down and removes dust inside the shot blasting mechanism, and improves the screening efficiency of the screening mechanism; the impurity handling mechanism removes dust inside the shot blasting mechanism; the cleaning mechanism makes it easier to clean the screened impurities and broken sand and pills, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a first axonometric structural schematic diagram of the utility model;

[0015] Figure 2 It is a second axonometric structural schematic diagram of the utility model;

[0016] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model in a top view;

[0017] Figure 4 It is a first front cross-sectional structural schematic diagram of the utility model;

[0018] Figure 5 It is a second front cross-sectional structural schematic diagram of the utility model;

[0019] Figure 6 It is a side cross-sectional structural schematic diagram of the utility model;

[0020] Markings in the attached drawings: 01, shot blasting mechanism; 11, shot blasting bin; 12, shot blaster; 13, stirring shaft; 14, stirring blade; 15, first motor; 02, screening mechanism; 21, sieve plate; 22, turntable; 23, eccentric shaft; 24, connecting rod; 25, second motor; 03, recovery mechanism; 31, auger shell; 32, auger shaft; 33, auger blade; 34, third motor; 35, storage box; 04, dust removal mechanism; 41, induced draft fan; 42, air inlet pipe; 43, exhaust fan; 44, exhaust pipe; 05, impurity handling mechanism; 51, cyclone dust removal bin; 52, slag storage box; 53, filter box; 54, filter plate; 06, cleaning mechanism; 61, screw; 62, guide rod; 63, cleaning plate; 64, cleaning motor. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0022] Example 1

[0023] like Figures 1 to 6 As shown, it includes a shot blasting mechanism 01, a screening mechanism 02, a recycling mechanism 03, a dust removal mechanism 04, an impurity processing mechanism 05 and a cleaning mechanism 06, the screening mechanism 02 is installed on the inner wall of the screening mechanism 02, the recycling mechanism 03 is installed on the screening mechanism 02, the dust removal mechanism 04 is installed on the side wall of the shot blasting mechanism 01, the impurity processing mechanism 05 is installed on the dust removal mechanism 04, and the cleaning mechanism 06 is installed on the inner wall of the shot blasting mechanism 01;

[0024] By opening the shot blasting mechanism 01, it is convenient to stir and shot blast the parts, the screening mechanism 02 is convenient to screen the sand and pills after shot blasting, the recovery mechanism 03 is convenient to recover the sand and pills, and improves the convenience, the dust removal mechanism 04 cools down the temperature and removes dust in the shot blasting mechanism 01, the impurity treatment mechanism 05 removes dust in the shot blasting mechanism 01, and the cleaning mechanism 06 is convenient to clean the screened impurities and broken sand and pills;

[0025] The shot blasting mechanism 01 includes a shot blasting bin 11, a shot blasting wheel 12, a stirring shaft 13, a stirring blade 14 and a first motor 15. The shot blasting wheel 12 is installed at the top of the shot blasting bin 11. A mounting screen plate is provided on the inner wall of the shot blasting bin 11. The stirring shaft 13 is rotatably mounted on the mounting screen plate. The stirring blade 14 is mounted on the stirring shaft 13. The first motor 15 is installed at the bottom end of the mounting screen plate. The output end of the first motor 15 is connected to the stirring shaft 13.

[0026] The screening mechanism 02 includes a sieve plate 21, a turntable 22, an eccentric shaft 23, a connecting rod 24 and a second motor 25. One end of the sieve plate 21 is rotatably mounted on the inner wall of the shot blasting bin 11, the turntable 22 is rotatably mounted on the inner wall of the shot blasting bin 11, the eccentric shaft 23 is eccentrically mounted on the turntable 22, one end of the connecting rod 24 is rotatably mounted on the eccentric shaft 23, and the other end of the connecting rod 24 is rotatably mounted on the bottom end of the sieve plate 21. The second motor 25 is mounted on the side wall of the shot blasting bin 11, and the output end of the second motor 25 is connected to the turntable 22. A storage box is provided on the side wall of the shot blasting bin 11;

[0027] The recovery mechanism 03 includes an auger housing 31, an auger shaft 32, an auger blade 33, a third motor 34 and a storage box 35. The auger housing 31 is installed in the storage box, the auger shaft 32 is rotatably installed in the auger housing 31, the auger blade 33 is installed on the auger shaft 32, the third motor 34 is installed at the top of the auger housing 31, the output end of the third motor 34 is connected to the auger shaft 32, the storage box 35 is installed at the top of the shot blasting bin 11, and a discharge pipe is provided on the auger housing 31, and the discharge pipe is connected to the storage box 35;

[0028] First, the parts are added into the shot blasting bin 11, and the stirring blades 14 are driven to turn over the parts by turning on the first motor 15, and the parts are shot blasted and cleaned by turning on the shot blaster 12 to improve the quality of shot blasting cleaning. When the sand and pills after shot blasting cleaning fall onto the screen plate 21, the turntable 22 is driven to rotate by turning on the second motor 25, and then the eccentric rotation of the eccentric shaft 23 drives the connecting rod 24 to vibrate the screen plate 21 up and down, thereby improving the cleaning quality and efficiency of the sand and pills. The screened sand and pills fall into the storage box, and the auger shaft 32 is driven to rotate by turning on the third motor 34, and then the sand and pills in the storage box are added to the storage box 35 through the auger blades 33, thereby completing the recovery of the sand and pills, improving practicality and convenience. The dust removal mechanism 04 cools down the temperature and removes dust in the shot blasting mechanism 01, and improves the screening efficiency of the screening mechanism 02. The impurity handling mechanism 05 removes dust in the shot blasting mechanism 01, and the cleaning mechanism 06 facilitates the cleaning of the screened impurities and broken sand and pills, thereby improving practicality.

[0029] Example 2

[0030] like Figures 2 to 5 As shown, it includes a shot blasting mechanism 01, a screening mechanism 02, a recycling mechanism 03, a dust removal mechanism 04, an impurity processing mechanism 05 and a cleaning mechanism 06, the screening mechanism 02 is installed on the inner wall of the screening mechanism 02, the recycling mechanism 03 is installed on the screening mechanism 02, the dust removal mechanism 04 is installed on the side wall of the shot blasting mechanism 01, the impurity processing mechanism 05 is installed on the dust removal mechanism 04, and the cleaning mechanism 06 is installed on the inner wall of the shot blasting mechanism 01;

[0031] By opening the shot blasting mechanism 01, it is convenient to stir and shot blast the parts, the screening mechanism 02 is convenient to screen the sand and pills after shot blasting, the recovery mechanism 03 is convenient to recover the sand and pills, and improves the convenience, the dust removal mechanism 04 cools down the temperature and removes dust in the shot blasting mechanism 01, the impurity treatment mechanism 05 removes dust in the shot blasting mechanism 01, and the cleaning mechanism 06 is convenient to clean the screened impurities and broken sand and pills;

[0032] The dust removal mechanism 04 includes an induced draft fan 41, an air intake pipe 42, an exhaust fan 43 and an exhaust pipe 44. The induced draft fan 41 is installed on the side wall of the shot blasting bin 11, the air intake pipe 42 is installed on the induced draft fan 41 through a pipeline, one end of the air intake pipe 42 is installed on the top of the shot blasting bin 11, and the other end of the air intake pipe 42 is installed on the upper part of the sieve plate 21. The exhaust fan 43 is installed on the side wall of the shot blasting bin 11, and the exhaust pipe 44 is installed on the exhaust fan 43 through a pipeline, and the other end of the exhaust pipe 44 is installed on the top of the shot blasting bin 11, and the other end of the exhaust pipe 44 is installed on the top of the sieve plate 21.

[0033] The impurity processing mechanism 05 includes a cyclone dust removal bin 51, a slag storage box 52, a filter box 53 and a filter plate 54. The cyclone dust removal bin 51 is connected to the exhaust pipe 44 through a pipeline. The slag storage box 52 is installed at the bottom end of the cyclone dust removal bin 51. The filter box 53 is connected to the cyclone dust removal bin 51 through a pipeline. The filter plate 54 is installed in the filter box 53.

[0034] The cleaning mechanism 06 includes a lead screw 61, a guide rod 62, a cleaning plate 63 and a cleaning motor 64. The lead screw 61 is rotatably mounted on the inner wall of the shot blasting bin 11, the guide rod 62 is mounted on the inner wall of the shot blasting bin 11, the cleaning plate 63 is slidably mounted on the guide rod 62, the cleaning plate 63 is threadedly matched with the lead screw 61, the cleaning motor 64 is mounted on the side wall of the shot blasting bin 11, and the output end of the cleaning motor 64 is connected to the lead screw 61;

[0035] By opening the shot blasting mechanism 01, it is convenient to stir and shot blast the parts, thereby improving the quality of shot blasting. The screening mechanism 02 is convenient to screen the sand and pills after shot blasting to remove impurities, thereby improving practicality and the quality of shot blasting. The recycling mechanism 03 is convenient to recycle the sand and pills, thereby improving convenience. By opening the induced draft fan 41, the outside air is added to the shot blasting bin 11. By opening the exhaust fan 43, the air in the shot blasting bin 11 is extracted to dissipate the temperature in the shot blasting bin 11, thereby improving practicality. By blowing air on the sieve plate 21, the screening of the sand and pills is improved. Efficiency is improved, and dust is removed from the shot blasting bin 11 conveniently. When the exhaust pipe 44 extracts the air with impurities from the shot blasting bin 11, the air enters the cyclone dust removal bin 51 for cyclone dust removal. The impurities enter the slag storage box 52 for easy cleaning. Then the air enters the filter box 53, and the impurities are filtered by the filter plate 54 to improve the quality of dust removal. The cleaning motor 64 is turned on to drive the guide rod 62 to rotate, and then the cleaning plate 63 is driven to slide on the guide rod 62 through the threaded relationship, and then the impurities at the bottom of the shot blasting bin 11 are cleaned through the cleaning plate 63.

[0036] like Figures 1 to 6As shown, the utility model is a shot blasting cleaning machine for pre-spraying treatment. When it is working, the parts are first added into the shot blasting bin 11, and the stirring blades 14 are driven to turn over the parts by turning on the first motor 15, and the parts are shot blasted and cleaned by turning on the shot blaster 12, so as to improve the quality of shot blasting cleaning. When the sand and pellets after shot blasting cleaning fall onto the screen plate 21, the turntable 22 is driven to rotate by turning on the second motor 25, and then the screen plate 21 is vibrated up and down by the eccentric rotation of the eccentric shaft 23, so as to improve the cleaning quality and efficiency of the sand and pellets. The screened sand and pellets fall into the storage box, and the auger shaft 32 is driven to rotate by turning on the third motor 34, and then the sand and pellets in the storage box are added into the storage box 35 through the auger blades 33, so as to complete the recovery of the sand and pellets, so as to improve the practicality and convenience. The machine 41 adds outside air into the shot blasting bin 11, and draws out the air in the shot blasting bin 11 by opening the exhaust fan 43, dissipates the temperature in the shot blasting bin 11, and improves practicality. By blowing air on the sieve plate 21, the efficiency of sand and shot screening is improved, and it is convenient to remove dust in the shot blasting bin 11. When the exhaust pipe 44 draws out the air with impurities in the shot blasting bin 11, it enters the cyclone dust removal bin 51 for cyclone dust removal, and the impurities enter the slag storage box 52 for easy cleaning. After that, the air enters the filter box 53, and the impurities are filtered by the filter plate 54 to improve the quality of dust removal. By turning on the cleaning motor 64, the guide rod 62 is driven to rotate, and then the cleaning plate 63 is driven to slide on the guide rod 62 through the threaded relationship, and then the impurities at the bottom of the shot blasting bin 11 are cleaned by the cleaning plate 63.

[0037] The shot blaster 12, the first motor 15, the second motor 25, the third motor 34, the induced draft fan 41, the exhaust fan 43 and the cleaning motor 64 of the utility model are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for creative work by technicians in this field.

[0038] The main functions realized by the utility model are: during the operation of the shot blasting cleaning machine, dust removal is convenient, and sand shots are conveniently screened and recovered, thereby improving convenience and practicality.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A shot blasting machine for pre-spraying treatment, comprising a shot blasting mechanism (01); characterized in that: It also includes a screening mechanism (02), a recovery mechanism (03), a dust removal mechanism (04), an impurity processing mechanism (05) and a cleaning mechanism (06), wherein the screening mechanism (02) is mounted on the inner wall of the screening mechanism (02), the recovery mechanism (03) is mounted on the screening mechanism (02), the dust removal mechanism (04) is mounted on the side wall of the shot blasting mechanism (01), the impurity processing mechanism (05) is mounted on the dust removal mechanism (04), and the cleaning mechanism (06) is mounted on the inner wall of the shot blasting mechanism (01); The shot blasting mechanism (01) is convenient for stirring and shot blasting the parts, the screening mechanism (02) is convenient for screening the sand and pellets after shot blasting, the recovery mechanism (03) is convenient for recovering the sand and pellets, and improves convenience, the dust removal mechanism (04) cools down the temperature and removes dust in the shot blasting mechanism (01), the impurity treatment mechanism (05) removes dust in the shot blasting mechanism (01), and the cleaning mechanism (06) is convenient for cleaning the screened impurities and broken sand and pellets.

2. A shot blasting machine for pre-spraying treatment as claimed in claim 1, characterized in that: The shot blasting mechanism (01) comprises a shot blasting bin (11), a shot blasting device (12), a stirring shaft (13), a stirring blade (14) and a first motor (15). The shot blasting device (12) is mounted on the top of the shot blasting bin (11). A mounting screen plate is arranged on the inner wall of the shot blasting bin (11). The stirring shaft (13) is rotatably mounted on the mounting screen plate. The stirring blade (14) is mounted on the stirring shaft (13). The first motor (15) is mounted on the bottom end of the mounting screen plate. The output end of the first motor (15) is connected to the stirring shaft (13).

3. A shot blasting machine for pre-spraying treatment as claimed in claim 2, characterized in that: The screening mechanism (02) comprises a screen plate (21), a rotating disc (22), an eccentric shaft (23), a connecting rod (24) and a second motor (25); one end of the screen plate (21) is rotatably mounted on the inner wall of the shot blasting bin (11); the rotating disc (22) is rotatably mounted on the inner wall of the shot blasting bin (11); the eccentric shaft (23) is eccentrically mounted on the rotating disc (22); one end of the connecting rod (24) is rotatably mounted on the eccentric shaft (23); the other end of the connecting rod (24) is rotatably mounted on the bottom end of the screen plate (21); the second motor (25) is mounted on the side wall of the shot blasting bin (11); the output end of the second motor (25) is connected to the rotating disc (22); and a storage box is arranged on the side wall of the shot blasting bin (11).

4. A shot blasting machine for pre-spraying treatment as claimed in claim 3, characterized in that: The recovery mechanism (03) comprises an auger housing (31), an auger shaft (32), an auger blade (33), a third motor (34) and a material storage box (35); the auger housing (31) is installed in the material storage box; the auger shaft (32) is rotatably installed in the auger housing (31); the auger blade (33) is installed on the auger shaft (32); the third motor (34) is installed at the top end of the auger housing (31); the output end of the third motor (34) is connected to the auger shaft (32); the material storage box (35) is installed at the top end of the shot blasting bin (11); a discharge pipe is provided on the auger housing (31); and the discharge pipe is connected to the material storage box (35).

5. A shot blasting machine for pre-spraying treatment as claimed in claim 2, characterized in that: The dust removal mechanism (04) comprises an induced draft fan (41), an air intake pipe (42), an exhaust fan (43) and an exhaust pipe (44); the induced draft fan (41) is mounted on the side wall of the shot blasting bin (11); the air intake pipe (42) is mounted on the induced draft fan (41) through a pipeline; one end of the air intake pipe (42) is mounted on the top of the shot blasting bin (11); the other end of the air intake pipe (42) is mounted on the upper part of the sieve plate (21); the exhaust fan (43) is mounted on the side wall of the shot blasting bin (11); the exhaust pipe (44) is mounted on the exhaust fan (43) through a pipeline; the other end of the exhaust pipe (44) is mounted on the top of the shot blasting bin (11); and the other end of the exhaust pipe (44) is mounted on the top of the sieve plate (21).

6. A shot blasting machine for pre-spraying treatment as claimed in claim 5, characterized in that: The impurity processing mechanism (05) comprises a cyclone dust removal bin (51), a slag storage box (52), a filter box (53) and a filter plate (54); the cyclone dust removal bin (51) is connected to the exhaust pipe (44) through a pipeline; the slag storage box (52) is installed at the bottom end of the cyclone dust removal bin (51); the filter box (53) is connected to the cyclone dust removal bin (51) through a pipeline; and the filter plate (54) is installed in the filter box (53).

7. A shot blasting machine for pre-spraying treatment as claimed in claim 2, characterized in that: The cleaning mechanism (06) comprises a lead screw (61), a guide rod (62), a cleaning plate (63) and a cleaning motor (64); the lead screw (61) is rotatably mounted on the inner wall of the shot blasting bin (11); the guide rod (62) is mounted on the inner wall of the shot blasting bin (11); the cleaning plate (63) is slidably mounted on the guide rod (62); the cleaning plate (63) is threadedly matched with the lead screw (61); the cleaning motor (64) is mounted on the side wall of the shot blasting bin (11); and the output end of the cleaning motor (64) is connected to the lead screw (61).

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