Shot blasting assembly of shot blasting machine

Abstract

The utility model discloses a shot blasting assembly of a shot blasting machine, which belongs to the technical field of shot blasting machines and comprises a shell, a connector is arranged at the top of the shell, a feeding mechanism is arranged at the top of the shell, a discharging channel is arranged at the bottom of the shell, and a shot blasting box is arranged at the bottom end of the discharging channel. According to the shot blasting machine, the rotating shaft drives the rotating disc to intermittently rotate to change the position of the material chamber hole, so that shot materials in the inner cavity of the material chamber hole are discharged from the discharging channel and the shot blasting box, and the inner cavity of the air storage cavity can be inflated through the one-way valve, so that the rubber elastic ring expands towards the inner cavity of the material chamber hole, and the space of the inner cavity of the material chamber hole is reduced; and gas in the gas storage cavity can be exhausted by opening the exhaust valve, so that the rubber elastic ring is shrunk from the inner cavity of the material chamber hole, the space of the inner cavity of the material chamber hole is increased, the storage amount of the shot in the inner cavity of the material chamber hole is adjusted, the shot blasting amount is adjusted, and the practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of shot blasting machines, in particular to a shot blasting component of a shot blasting machine. Background Art

[0002] Shot blasting machine refers to a casting equipment that uses high-speed projectiles thrown by the shot blaster to clean or strengthen the surface of the casting. The shot blasting machine can simultaneously remove sand, core and clean the casting. In some areas, it is also verbally called a sandblasting machine or a sandblasting machine.

[0003] After searching, the utility model patent with announcement number CN208713722U discloses a shot blasting mechanism in a shot blasting machine, including an air pump, a shell, a driving motor, a rotor and a rotating shaft. The shell of the driving motor is fixed on the shell, the output shaft of the driving motor is connected to the rotating shaft, the rotor is fixed on the rotating shaft, the rotating shaft is rotatably connected to the shell, the shell is provided with a discharge channel and a storage chamber, a plurality of chambers are evenly arranged circumferentially on the rotor, the chambers can be located in the storage chamber, the air outlet end of the air pump is connected to the joint, and the chambers can connect the joint with the discharge channel; a runner 1 is fixedly arranged on the output shaft of the driving motor, a runner 2 is fixedly arranged on the rotating shaft, a plurality of protrusions are evenly distributed circumferentially on the circumferential surfaces of the runner 1 and the runner 2, and the runner 1 and the runner 2 are meshed; the joint and the storage chamber are communicated through a connecting pipe; a filter screen penetrating the storage chamber and the outside is provided on the inner wall of the storage chamber; the patent has the advantages of being able to increase the intensity of shot blasting, etc.

[0004] However, the above patents still have the following shortcomings: the space size of the chamber is fixed, which makes it difficult to adjust the shot blasting amount and select different shot blasting amounts according to different workpieces; in addition, although the pipe can introduce the air from the air pump into the storage chamber, the pipe is located close to the chamber, which makes it difficult to ensure that the gas can smoothly introduce the shot into the chamber. For this reason, we propose a shot blasting assembly for a shot blasting machine. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model aims to provide a shot blasting assembly for a shot blasting machine.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] The top of the shell is provided with a joint, the top of the shell is provided with a feeding mechanism, the bottom of the shell is provided with a discharging channel, the bottom of the discharging channel is provided with a shot blasting box, the inner cavity of the shot blasting box is rotatably connected with an impeller disk, the inner cavity of the shell is rotatably connected with a rotating shaft, the outer side of the rotating shaft is fixedly sleeved with a turntable, three material bore holes are opened on the turntable, an air storage cavity is provided inside the turntable, a rubber elastic ring is fixedly sleeved on the inner wall of the material bore hole, an operating groove is provided on the side of the turntable, an exhaust valve is fixedly installed in the inner cavity of the operating groove, a one-way valve is fixedly installed in the inner cavity of the operating groove, the ends of the exhaust valve and the one-way valve extend to the inner cavity of the air storage cavity respectively, the bottom end of the rotating shaft extends to the bottom of the shell and is fixedly sleeved with a spur gear, a servo motor is fixedly installed on the bottom surface of the shell, and the output shaft of the servo motor is fixedly sleeved with an incomplete gear that intermittently meshes with the spur gear for transmission.

[0008] As a preferred solution of the utility model, the feeding mechanism includes an air guide box fixedly connected to the top surface of the shell and a material storage pipe fixedly sleeved on the top of the shell, the inner cavity of the air guide box is sleeved with an air guide disk, the top end of the rotating shaft extends to the inner cavity of the air guide box and is connected to the bottom surface of the air guide disk, and three air guide holes are opened on the side of the air guide disk, a front guide tube is fixedly sleeved on one side of the air guide box, and the end of the front guide tube is fixedly sleeved to the inner cavity of the joint, and a rear guide tube is fixedly sleeved on the other side of the air guide box, and the end of the rear guide tube is fixedly sleeved to the top of the material storage pipe, and a screw plug is installed on the outer thread of the material storage pipe.

[0009] As a preferred solution of the utility model, an exhaust hole is opened on the bottom surface of the shell, a filter screen is fixedly sleeved in the inner cavity of the exhaust hole, and the exhaust hole is located directly below the material storage pipe.

[0010] As a preferred solution of the utility model, a sealing door is hinged on the outer side of the shell, and the inner wall of the shell and the outer side surface of the turntable are in contact with each other.

[0011] As a preferred solution of the utility model, the inner wall of the air guide box and the outer side surface of the air guide plate are in contact with each other.

[0012] As a preferred solution of the utility model, the discharge channel and the joint are arranged concentrically, and the inner diameters of the joint, the discharge channel, the material storage tube and the material bore are equal.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] (1) In the utility model, the rotating shaft drives the turntable to rotate intermittently to change the position of the material bore hole, so that the shot material in the inner cavity of the material bore hole is discharged from the discharge channel and the shot blasting box, and the inner cavity of the air storage chamber can be inflated through the one-way valve, so that the rubber elastic ring expands toward the inner cavity of the material bore hole, thereby reducing the space in the inner cavity of the material bore hole; in addition, the gas in the air storage chamber can be released by opening the exhaust valve, so that the rubber elastic ring shrinks from the inner cavity of the material bore hole, increasing the space in the inner cavity of the material bore hole, thereby realizing the adjustment of the shot material storage amount in the inner cavity of the material bore hole, and then adjusting the shot blasting amount.

[0015] (2) In the utility model, the air guide plate is driven to rotate by the rotating shaft so that the air guide holes intermittently connect the front duct and the rear duct. When the front duct and the rear duct are connected by the air guide holes, the airflow in the joint is directly introduced into the top of the inner cavity of the storage tube through the front duct, the air guide holes and the rear duct. The pellets in the storage tube are pushed by the airflow from top to bottom, ensuring that the pellets can smoothly enter the material bore, which has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the housing of the utility model;

[0019] Figure 4 It is a cross-sectional schematic diagram of the turntable of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the turntable of the utility model;

[0021] Figure 6 It is a cross-sectional schematic diagram of the air guide disc of the utility model;

[0022] Figure 7 It is a structural schematic diagram of the air guide disc of the utility model.

[0023] Description of the numbers in the figure:

[0024] 1. Shell; 2. Joint; 3. Discharge channel; 4. Shot blasting box; 5. Rotating shaft; 6. Turntable; 7. Air storage chamber; 8. Material bore; 9. Rubber elastic ring; 10. Operation slot; 11. Exhaust valve; 12. One-way valve; 13. Feeding mechanism; 14. Spur gear; 15. Servo motor; 16. Incomplete gear; 17. Air guide box; 18. Material storage pipe; 19. Front duct; 20. Rear duct; 21. Screw plug; 22. Air guide disc; 23. Air guide hole; 24. Exhaust hole; 25. Filter; 26. Sealing door; 27. Impeller disc. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] Example:

[0029] See also Figure 1-7 A shot blasting assembly of a shot blasting machine includes a shell 1, a joint 2 is provided on the top of the shell 1, a feeding mechanism 13 is provided on the top of the shell 1, a discharge channel 3 is provided on the bottom of the shell 1, a shot blasting box 4 is provided at the bottom end of the discharge channel 3, an impeller disk 27 is rotatably connected to the inner cavity of the shot blasting box 4, a rotating shaft 5 is rotatably connected to the inner cavity of the shell 1, a rotating disk 6 is fixedly sleeved on the outer side of the rotating shaft 5, three material bore holes 8 are opened on the rotating disk 6, an air storage cavity 7 is provided inside the rotating disk 6, and an inner wall of the material bore hole 8 is fixedly sleeved A rubber elastic ring 9 and an operating groove 10 are arranged on the side of the turntable 6, an exhaust valve 11 is fixedly installed in the inner cavity of the operating groove 10, a one-way valve 12 is fixedly installed in the inner cavity of the operating groove 10, the ends of the exhaust valve 11 and the one-way valve 12 extend to the inner cavity of the air storage chamber 7 respectively, the bottom end of the rotating shaft 5 extends to the bottom of the shell 1 and is fixedly sleeved with a spur gear 14, a servo motor 15 is fixedly installed on the bottom surface of the shell 1, and an output shaft of the servo motor 15 is fixedly sleeved with an incomplete gear 16 that intermittently meshes with the spur gear 14 for transmission.

[0030] In this embodiment, the three material bore holes 8 are spaced one hundred and twenty degrees apart, and the one-way valve 12 can only inject gas into the gas storage chamber 7 from the outside. In addition, the incomplete gear 16 and the spur gear 14 are meshed and driven to drive the spur gear 14, the rotating shaft 5 and the turntable 6 to rotate 60 degrees once.

[0031] For details, please refer to Figures 1 to 7 The feeding mechanism 13 includes an air guide box 17 fixedly connected to the top surface of the shell 1 and a material storage pipe 18 fixedly sleeved on the top of the shell 1, the inner cavity of the air guide box 17 is sleeved with an air guide disk 22, the top end of the rotating shaft 5 extends to the inner cavity of the air guide box 17 and is connected to the bottom surface of the air guide disk 22, and three air guide holes 23 are opened on the side of the air guide disk 22. A front guide tube 19 is fixedly sleeved on one side of the air guide box 17, and the end of the front guide tube 19 is fixedly sleeved to the inner cavity of the joint 2, and a rear guide tube 20 is fixedly sleeved on the other side of the air guide box 17, and the end of the rear guide tube 20 is fixedly sleeved to the top of the material storage pipe 18, and a screw plug 21 is installed on the outer thread of the material storage pipe 18.

[0032] In this embodiment, the inlets and outlets of the front duct 19 and the rear duct 20 on both sides of the air guide box 17 are arranged concentrically. In addition, the inner diameters of the front duct 19 and the rear duct 20 are equal to the inner diameters of the air guide holes 23, and the other three air guide holes 23 are evenly arranged in a circle with the axis of the air guide plate 22.

[0033] For details, please refer to Figure 3 An exhaust hole 24 is provided on the bottom surface of the shell 1 , and a filter screen 25 is fixedly sleeved in the inner cavity of the exhaust hole 24 . The exhaust hole 24 is located directly below the material storage pipe 18 .

[0034] In this embodiment, the gas blown into the material bore 8 by the material storage pipe 18 is discharged through the exhaust hole 24, and the pellets in the material bore 8 are prevented from falling through the filter screen 25, and the top surface of the filter screen 25 is in contact with the bottom surface of the inner cavity of the shell 1.

[0035] For details, please refer to Figure 2 and Figure 3 A sealing door 26 is hinged on the outer side of the shell 1, and the inner wall of the shell 1 and the outer side surface of the turntable 6 are in contact with each other.

[0036] In this embodiment, the exhaust valve 11 and the one-way valve 12 are operated by opening the sealing door 26 , the gas in the air storage chamber 7 is discharged through the exhaust valve 11 , and the air storage chamber 7 is inflated through the one-way valve 12 .

[0037] For details, please refer to Figure 2 and Figure 7 The inner wall of the air guide box 17 and the outer side surface of the air guide plate 22 are in contact with each other.

[0038] In this embodiment, the sealing between the air guide plate 22 and the air guide box 17 is ensured.

[0039] For details, please refer to Figure 2 and Figure 4 The discharge channel 3 and the joint 2 are arranged concentrically, and the inner diameters of the joint 2, the discharge channel 3, the storage tube 18 and the material bore 8 are equal.

[0040] In this embodiment, it is ensured that the wind force in the joint 2 can smoothly enter the discharge channel 3, and it is also ensured that the pellets in the storage tube 18 can smoothly enter the material bore 8.

[0041] Working principle: When in use, first open the screw plug 21 to put the pellets into the inner cavity of the storage tube 18, and connect the air pump and the joint 2, use the air pump to inflate the joint 2, and then start the servo motor 15 to drive the incomplete gear 16 to rotate. When the incomplete gear 16 and the spur gear 14 are meshed and transmitted once, the rotating shaft 5, the turntable 6 and the air guide plate 22 are driven to rotate 60 degrees. When a material bore hole 8 on the turntable 6 and the storage tube 18 are concentrically arranged, the other side of the turntable 6 blocks the space between the joint 2 and the discharge channel 3. At this time, the air guide hole 23 on the side of the air guide plate 22 connects the front duct 19 and the rear duct 20, so that the airflow in the joint 2 is introduced into the storage tube 18 from the front duct 19, the air guide hole 23 and the rear duct 20, and the airflow entering into the The airflow in the material storage tube 18 pushes the shot into the inner cavity of the material bore 8, and then when the spur gear 14 and the incomplete gear 16 are driven again, a material bore 8 on the turntable 6 is located between the joint 2 and the discharge channel 3, and the turntable 6 blocks the bottom of the material storage tube 18, and the side of the air guide plate 22 blocks the front duct 19 and the rear duct 20, and the air guide hole 23 no longer connects the front duct 19 and the rear duct 20, and the airflow in the joint 2 blows the shot in the material bore 8 into the discharge channel 3, and makes the shot ejected from the side of the shot blasting box 4, and finally the intermittent meshing transmission between the spur gear 14 and the incomplete gear 16 drives the turntable 6 and the air guide plate 22 to rotate intermittently, so that the shot is ejected intermittently;

[0042] In addition, the sealing door 26 can be opened, and air can be inflated from the one-way valve 12 into the air storage chamber 7 through an external inflation device, and the gas in the air storage chamber 7 is used to squeeze the rubber elastic ring 9, and the deformation of the rubber elastic ring 9 into the material bore 8 is used to change the size of the inner cavity of the material bore 8, thereby changing the shot blasting amount. In addition, the exhaust valve 11 can be opened to discharge the gas in the air storage chamber 7, so that the air pressure in the air storage chamber 7 is reduced, thereby causing the rubber elastic ring 9 that is deformed to the inner cavity of the material bore 8 to shrink, so that the inner cavity of the material bore 8 is enlarged, thereby realizing the adjustment of the size of the inner cavity of the material bore 8, so as to change the amount of shots temporarily stored in the material bore 8.

[0043] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.

Claims

1. A shot blasting assembly of a shot blasting machine, comprising a housing (1), characterized in that: The top of the shell (1) is provided with a joint (2), the top of the shell (1) is provided with a feeding mechanism (13), the bottom of the shell (1) is provided with a discharge channel (3), the bottom end of the discharge channel (3) is provided with a shot blasting box (4), the inner cavity of the shot blasting box (4) is rotatably connected to an impeller disk (27), the inner cavity of the shell (1) is rotatably connected to a rotating shaft (5), the outer side of the rotating shaft (5) is fixedly sleeved with a rotating disk (6), three material bore holes (8) are opened on the rotating disk (6), the interior of the rotating disk (6) is provided with an air storage cavity (7), and the inner wall of the material bore hole (8) is fixedly sleeved with a rubber elastic ring (9), an operating groove (10) is provided on the side of the rotating disk (6), an exhaust valve (11) is fixedly installed in the inner cavity of the operating groove (10), a check valve (12) is fixedly installed in the inner cavity of the operating groove (10), the ends of the exhaust valve (11) and the check valve (12) respectively extend to the inner cavity of the air storage chamber (7), the bottom end of the rotating shaft (5) extends to the bottom of the shell (1) and is fixedly sleeved with a spur gear (14), a servo motor (15) is fixedly installed on the bottom surface of the shell (1), and the output shaft of the servo motor (15) is fixedly sleeved with an incomplete gear (16) that intermittently meshes with the spur gear (14) for transmission.

2. The shot blasting assembly of a shot blasting machine according to claim 1, characterized in that: The feeding mechanism (13) comprises an air guide box (17) fixedly connected to the top surface of the shell (1) and a material storage pipe (18) fixedly sleeved on the top of the shell (1); the inner cavity of the air guide box (17) is sleeved with an air guide disk (22); the top end of the rotating shaft (5) extends to the inner cavity of the air guide box (17) and is connected to the bottom surface of the air guide disk (22); three air guide holes (23) are opened on the side of the air guide disk (22); a front guide tube (19) is fixedly sleeved on one side of the air guide box (17); the end of the front guide tube (19) is fixedly sleeved on the inner cavity of the joint (2); a rear guide tube (20) is fixedly sleeved on the other side of the air guide box (17); the end of the rear guide tube (20) is fixedly sleeved on the top of the material storage pipe (18); and a screw plug (21) is installed on the outer thread of the material storage pipe (18).

3. The shot blasting assembly of a shot blasting machine according to claim 2, characterized in that: The bottom surface of the shell (1) is provided with an exhaust hole (24), the inner cavity of the exhaust hole (24) is fixedly sleeved with a filter screen (25), and the exhaust hole (24) is located directly below the material storage pipe (18).

4. The shot blasting assembly of a shot blasting machine according to claim 1, characterized in that: A sealing door (26) is hingedly connected to the outer side of the shell (1), and the inner wall of the shell (1) is in contact with the outer side surface of the rotating disk (6).

5. The shot blasting assembly of a shot blasting machine according to claim 2, characterized in that: The inner wall of the air guide box (17) and the outer side surface of the air guide plate (22) are in contact with each other.

6. The shot blasting assembly of a shot blasting machine according to claim 2, characterized in that: The discharge channel (3) and the joint (2) are arranged concentrically, and the inner diameters of the joint (2), the discharge channel (3), the material storage pipe (18) and the material bore (8) are equal.

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