A drum shot blasting machine

Abstract

The present invention discloses a drum-type shot blasting machine, comprising a shot blasting unit, a cleaning unit, a shot feeding unit and a control unit, wherein the cleaning unit comprises a first separation part in the shape of a funnel, a second separation part coaxially arranged with the first separation part and mounted on the inner wall of the first separation part, the second separation part protrudes upward and is in the shape of a cone or a sphere, a gap is formed between the edge of the second separation part and the side wall of the first separation part for impurities to fall, an exhaust fan for forming a downward wind speed is arranged on the inner wall of the first separation part, the exhaust fan is arranged below the second separation part, a collecting trough for the projectiles to fall is opened on the inner wall of the first separation part, and the outlet end of the collecting trough is connected to the shot feeding unit. The present invention has at least the following advantages: it can quickly and effectively separate the projectiles and impurities, has an optimized structure and a good separation effect.

Description

Technical Field

[0001] The invention relates to the technical field of shot blasting machines, in particular to a drum type shot blasting machine. Background Art

[0002] Castings need to be shot blasted during the processing process, which is not only to remove some attachments on the surface of the castings, such as rust, scale and sticky sand, but also an indispensable preparation process before the quality inspection of the castings. The drum shot blasting machine uses a high-speed rotating impeller to throw the projectiles onto the workpieces that are continuously turned over in the drum, so as to achieve the purpose of cleaning the workpieces. In order to meet the requirements for the treatment of each part of the casting, the position of the shot blasting machine will be arranged according to actual needs. The drum shot blasting machine also needs to separate the projectiles and impurities in an orderly manner to achieve the reuse of the projectiles. At present, a vibrating screen mechanism is usually used to separate impurities from projectiles. This structure causes great damage to the projectiles, and the screen holes of the vibrating screen are easily blocked, affecting the separation effect. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a drum-type shot blasting machine which can quickly and effectively separate the projectiles and impurities, has an optimized structure and a good separation effect.

[0004] In order to solve the above technical problems, the present invention provides a drum shot blasting machine, comprising a shot blasting unit, a cleaning unit, a shot feeding unit and a control unit, the inlet end of the cleaning unit is connected to the outlet end of the shot blasting unit, the outlet end of the cleaning unit is connected to the inlet end of the shot feeding unit, the cleaning unit comprises a first separation part in the shape of a funnel, a second separation part coaxially arranged with the first separation part and mounted on the inner wall of the first separation part, the second separation part protrudes upward and is conical or spherical, a gap is formed at the edge of the second separation part and the side wall of the first separation part for impurities to fall, an exhaust fan for forming a downward wind speed is arranged on the inner wall of the first separation part, the exhaust fan is arranged below the second separation part, a collecting trough for the projectiles to fall is opened on the inner wall of the first separation part, and the outlet end of the collecting trough is connected to the shot feeding unit.

[0005] Furthermore, a contoured magnet layer is provided on the inner wall of the first separation portion located above the collecting tank, and a scraper assembly is provided on the inner side wall of the first separation portion for moving in a longitudinal direction in contact with the contoured magnet layer.

[0006] Furthermore, the first separation portion is located on the inner side wall above the collecting tank and an energized coil is arranged in the collecting tank.

[0007] Furthermore, the second separation portion is provided with a through hole penetrating through the upper and lower surfaces thereof, and the aperture of the through hole is smaller than the diameter of the projectile.

[0008] Furthermore, the shot blasting unit includes a central shot blasting wheel assembly and a side shot blasting wheel assembly, the central shot blasting wheel assembly includes a central motor, a shot blasting cylinder and a central shot blasting wheel, the output shaft of the central motor is connected to the shot blasting cylinder through a connecting reducer, and the output shaft end of the central motor is arranged in the shot blasting cylinder and connected to the central shot blasting wheel through a connecting disc.

[0009] Furthermore, the central shot blasting machine includes a shot dividing wheel, a storage cavity is arranged at the center of the shot dividing wheel, a shot dividing opening is opened on the side wall of the shot dividing wheel, and the outlet end of the shot feeding unit is connected to the shot dividing wheel and adapted to the storage cavity.

[0010] Furthermore, an impeller is provided on the outer ring of the pellet separating wheel, and a plurality of blades are provided on the impeller.

[0011] Furthermore, the connecting reducer includes a first gear fixedly connected to the output shaft of the central motor, and a second gear is arranged at the axial center position of the upper end surface of the shot blasting cylinder. The number of teeth of the second gear is no more than that of the first gear, and the second gear is sleeved on the first gear and adapted to the first gear.

[0012] Furthermore, the pill feeding unit comprises a lifting mechanism and a pill storage chamber on one side of the lifting mechanism, and the lifting mechanism is communicated with the pill storage chamber.

[0013] Furthermore, the control unit is arranged on one side of the shot blasting unit, and includes a control panel and a display panel arranged on the control panel.

[0014] By means of the above technical solution, the present invention has at least the following advantages:

[0015] 1. By providing the first separation part and the second separation part, the marbles fall on the second separation part and roll to the collection groove on the first separation part by their own gravity. The impurities slide along the surface of the second separation part to the edge and fall along the gap, thus completing the separation of the marbles and the impurities;

[0016] 2. By providing an exhaust fan, which is arranged below the second separation part and forms a downward wind speed, combined with the gap between the first separation part and the second separation part, impurities can be better sucked out, further achieving a separation effect and optimizing the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall device structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the cleaning unit structure of the present invention;

[0019] Figure 3It is a partial structural schematic diagram of the shot blasting unit of the present invention.

[0020] In the above drawings: 1. first separation part; 2. second separation part; 3. exhaust fan; 4. collecting trough; 5. contoured magnet layer; 6. scraper assembly; 7. energized coil; 8. through hole; 9. side shot blasting machine assembly; 10. central motor; 11. shot blasting cylinder; 12. connecting cylinder reducer; 13. connecting plate; 14. shot dividing wheel; 15. shot dividing port; 16. impeller; 17. blades; 18. lifting mechanism; 19. shot storage chamber; 20. control panel; 21. display panel. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0022] Combined with the above Figures 1 to 3 As shown, the present invention discloses a drum shot blasting machine, including a shot blasting unit, a cleaning unit, a shot feeding unit and a control unit. The control unit is arranged on one side of the shot blasting unit, and includes a control panel 20 and a display panel 21 arranged on the control panel 20. The operator can adjust and set the working parameters of the drum shot blasting machine of the present invention through the control panel 20, and directly and effectively display and monitor the working status of the drum shot blasting machine through the display panel 21.

[0023] The inlet end of the cleaning unit is connected to the outlet end of the shot blasting unit, and the outlet end of the cleaning unit is connected to the inlet end of the shot feeding unit. The cleaning unit includes a first separation part 1 in the shape of a funnel, and a second separation part 2 coaxially arranged with the first separation part 1 and mounted on the inner wall of the first separation part 1. In the present invention, the second separation part 2 is preferably convex upward and is conical or spherical; a gap for impurities to fall is formed at the edge of the second separation part 2 and the side wall of the first separation part 1; a collecting groove 4 for the projectiles to fall is provided on the inner wall of the first separation part 1, and the outlet end of the collecting groove 4 is connected to the shot feeding unit. Through the above-mentioned setting, the marbles fall from the inlet end of the cleaning unit onto the second separation part 2, and roll to the collection groove 4 on the first separation part 1 by their own gravity, and the impurities slide along the surface of the second separation part 2 to the edge and fall along the gap, completing the separation of the marbles and impurities. In the present invention, preferably, an exhaust fan 3 with downward wind speed is provided on the inner wall of the first separation part 1, and the exhaust fan 3 is arranged below the second separation part 2. By providing the exhaust fan 3 and cooperating with the gap between the first separation part 1 and the second separation part 2, impurities can be better sucked out, further achieving the separation effect and optimizing the structure.

[0024] The first separation part 1 is provided with a contoured magnet layer 5 on the inner wall above the collecting tank 4. By providing the contoured magnet layer 5, when the marbles fall onto the first separation part 1, the rolling speed of the marbles can be effectively slowed down, thereby ensuring that the marbles accurately roll into the collecting tank 4 by their own gravity. The inner wall of the first separation part 1 is provided with a scraper assembly 6 that fits the contoured magnet layer 5 and moves along the longitudinal direction. The scraper assembly 6 is provided to push the marbles adsorbed on the contoured magnet layer 5 into the collecting tank 4, and the structure is optimized. The first separation part 1 is provided with an energized coil 7 on the inner wall above the collecting tank 4 and in the collecting tank 4. By providing the energized coil 7, the rolling speed of the marbles on the first separation part 1 can be further slowed down, and the marbles that roll into the collecting tank 4 can be adsorbed, effectively preventing the marbles 4 from rebounding, and the structure is optimized. When the marbles need to fall, the energized coil 7 only needs to be powered off to complete the process. The second separation part 2 is provided with a through hole 8 penetrating the upper and lower surfaces thereof, and the aperture of the through hole 8 is smaller than the diameter of the projectile. By providing the through hole 8, impurities can fall through the through hole 8 and be separated from the marble during the sliding process; and since the diameter of the through hole 8 is smaller than the diameter of the marble, the marble can roll down normally on the second separation part 2, and the structure is optimized.

[0025] The shot blasting unit includes a central shot blasting machine assembly and a side shot blasting machine assembly 9. The central shot blasting machine assembly includes a central motor 10, a shot blasting drum 11 and a central shot blasting machine. The output shaft of the central motor 10 is connected to the shot blasting drum 11 through a connecting reducer 12. The end of the output shaft of the central motor 10 is arranged in the shot blasting drum 11 and connected to the central shot blasting machine through a connecting plate 13. The central shot blasting machine includes a shot dividing wheel 14. A material storage cavity is arranged at the center of the shot dividing wheel 14. A shot dividing port 15 is opened on the side wall of the shot dividing wheel 14. The outlet end of the shot feeding unit is connected to the shot dividing wheel 14 and adapted to the material storage cavity.

[0026] In the present invention, the shot blasting drum 11 is preferably arranged on the frame, and the inner wall of the shot blasting drum 11 is a spherical structure. Through the above-mentioned arrangement, on the one hand, the four-corner disadvantages of the shot blasting treatment of the casting can be reduced, and on the other hand, it is beneficial to the treatment of impurities during the processing. In the present invention, an impeller 16 is provided on the outer ring of the shot dividing wheel 14, and a plurality of blades 17 are provided on the impeller 16. The connecting cylinder reducer 12 includes a first gear fixedly connected to the output shaft of the central motor 10, and a second gear is provided at the axial position of the upper end face of the shot blasting drum 11, and the number of teeth of the second gear is not more than that of the first gear. The second gear is sleeved on the first gear and adapted to the first gear. The shot feeding unit includes a lifting mechanism 18 and a shot storage chamber 19 on one side of the lifting mechanism 18, and the lifting mechanism 18 is connected to the shot storage chamber 19.

[0027] The above-described embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or changes made by those skilled in the art based on the present invention are within the protection scope of the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. A drum shot blasting machine, characterized in that: It comprises a shot blasting unit, a cleaning unit, a shot feeding unit and a control unit, wherein the inlet end of the cleaning unit is connected to the outlet end of the shot blasting unit, and the outlet end of the cleaning unit is connected to the inlet end of the shot feeding unit, and the cleaning unit comprises a first separation part in the shape of a funnel, and a second separation part coaxially arranged with the first separation part and mounted on the inner wall of the first separation part, the second separation part protrudes upward and is in the shape of a cone or a sphere, and a gap is formed between the edge of the second separation part and the side wall of the first separation part for impurities to fall, and an exhaust fan for forming a downward wind speed is arranged on the inner wall of the first separation part, and the exhaust fan is arranged below the second separation part, and a collecting groove for projectiles to fall is opened on the inner wall of the first separation part, and the outlet end of the collecting groove is connected to the shot feeding unit; The first separation part is provided with a contoured magnet layer on its inner wall above the collecting tank, and a scraper assembly is provided on the inner side wall of the first separation part to fit the contoured magnet layer and move in the longitudinal direction; The first separation portion is located on the inner side wall above the collecting tank and an energized coil is arranged in the collecting tank.

2. The drum shot blasting machine according to claim 1, characterized in that: The second separation portion is provided with a through hole penetrating the upper and lower surfaces thereof, and the aperture of the through hole is smaller than the diameter of the projectile.

3. The drum shot blasting machine according to claim 1, characterized in that: The shot blasting unit includes a central shot blasting wheel assembly and a side shot blasting wheel assembly. The central shot blasting wheel assembly includes a central motor, a shot blasting drum and a central shot blasting wheel. The output shaft of the central motor is connected to the shot blasting drum through a connecting reducer. The output shaft end of the central motor is arranged in the shot blasting drum and is connected to the central shot blasting wheel through a connecting disk.

4. The drum shot blasting machine according to claim 3, characterized in that: The central shot blasting machine comprises a shot dividing wheel, a material storage cavity is arranged at the center of the shot dividing wheel, a shot dividing opening is opened on the side wall of the shot dividing wheel, and the outlet end of the shot feeding unit is connected with the shot dividing wheel and adapted to the material storage cavity.

5. The drum shot blasting machine according to claim 4, characterized in that: An impeller is arranged on the outer ring of the pellet separating wheel, and a plurality of blades are arranged on the impeller.

6. The drum shot blasting machine according to claim 3, characterized in that: The connecting reducer includes a first gear fixedly connected to the output shaft of the central motor, and a second gear is arranged at the axial center position of the upper end surface of the shot blasting cylinder. The number of teeth of the second gear is no more than that of the first gear, and the second gear is sleeved on the first gear and adapted to the first gear.

7. The drum shot blasting machine according to claim 1, characterized in that: The pill feeding unit comprises a lifting mechanism and a pill storage chamber on one side of the lifting mechanism, and the lifting mechanism is communicated with the pill storage chamber.

8. The drum shot blasting machine according to claim 1, characterized in that: The control unit is arranged at one side of the shot blasting unit, and comprises a control panel and a display panel arranged on the control panel.

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