Feeding nozzle for sand blasting machine

Abstract

The utility model relates to the field of sand-blasting machines, and discloses a feeding nozzle for a sand-blasting machine, which comprises a sand-blasting machine and an air compressor, a main body of the sand-blasting machine is of a shell structure, the sand-blasting machine comprises a sand storage hopper, and the sand storage hopper is arranged at the bottom of the sand-blasting machine; a spraying pipe is arranged in the sand blasting machine, a conveying pipe is fixedly communicated with the bottom of the right side wall of the sand storage hopper, the other end of the conveying pipe penetrates through the upper portion of the outer wall of the sand blasting machine along the outer wall of the sand blasting machine, and the other end of the conveying pipe is fixedly communicated with the bottom of the outer wall of the spraying pipe. And the other end of the air delivery pipe penetrates through the outer wall of the sand blasting machine and is communicated with an air compressor.

Description

Technical Field

[0001] The utility model relates to the field of sandblasting machines, and specifically to a feeding nozzle for a sandblasting machine. Background Art

[0002] Sandblasting technology removes impurities such as dirt, oxide layers, and coatings by impacting the surface of the workpiece with high-speed ejected abrasive materials, improving the surface roughness and adhesion, thereby enhancing the mechanical properties of the workpiece and the adhesion of the coating.

[0003] However, at present, it is often difficult to flexibly adjust the sandblasting intensity and the discharging speed of the abrasive material of the sandblasting machine according to actual needs, which affects the quality, efficiency, and quality of the sandblasting operation. Content of the Utility Model

[0004] In order to overcome the above deficiencies, the utility model provides a feeding nozzle for a sandblasting machine.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A feeding nozzle for a sandblasting machine includes a sandblasting machine and an air compressor. The main body of the sandblasting machine is of a shell structure. The sandblasting machine includes a sand storage hopper, and the bottom of the sandblasting machine is the sand storage hopper. The bottom end of the sand storage hopper is fixedly communicated with a feeding pipe, and a valve is installed on the feeding pipe. The interior of the sandblasting machine has a spray pipe. The bottom of the right side wall of the sand storage hopper is fixedly communicated with a material conveying pipe, and the other end of the material conveying pipe penetrates through the upper part of the outer wall of the sandblasting machine along the outer wall of the sandblasting machine. The other end of the material conveying pipe is fixedly communicated with the bottom of the outer wall of the spray pipe. The tail end of the spray pipe is fixedly communicated with an air conveying pipe, and the other end of the air conveying pipe penetrates through the outer wall of the sandblasting machine and is communicated with the air compressor. The top inner wall of the sand storage hopper is fixedly connected with a sieve plate. The head end of the spray pipe is connected with a variable diameter mechanism. A foot switch is arranged below the sandblasting machine, and the foot switch is electrically connected to the air compressor.

[0007] The variable-diameter mechanism includes a connecting ring and a cover ring. Both the connecting ring and the cover ring are in the shape of a bottle cap with an opening in the middle. The inner wall on the right side of the connecting ring has threads, and the inner wall on the right side of the connecting ring is threadedly sleeved with the head end of the spray pipe. The cover ring is fixedly connected to the outer wall on the left side of the connecting ring. There is a movable ring inside the cover ring. The outer wall of the movable ring is slidably matched with the inner wall of the cover ring. The movable ring is circular. There are a plurality of sliding holes opened on the side wall of the movable ring. The sliding holes are arc-shaped and evenly distributed around the center of the movable ring. There are a plurality of variable-diameter blades on the right side of the movable ring. The variable-diameter blades correspond to the sliding holes one by one. The variable-diameter blades are in the shape of acute triangles with the acute angles facing inward into the circular hole of the movable ring. The outer end of the left side wall of the variable-diameter blade is vertically and fixedly connected with a sliding column. The sliding column is inserted into the sliding hole and is slidably matched with the sliding hole. The obtuse angle of the right side wall of the variable-diameter blade is vertically and fixedly connected with a connecting column. The connecting column is rotatably connected to the left side wall of the connecting ring. There is a strip hole opened on the top of the cover ring. A lever is fixedly connected to the top of the movable ring. The lever is in the shape of an L. One end of the lever passes downward through the strip hole. One end of the lever has a clearance fit with the strip hole. The other end of the lever is outside the outer wall of the connecting ring. The other end of the lever has a clearance fit with the outer wall of the connecting ring.

[0008] Advantages of the present utility model:

[0009] Through the design of the variable-diameter mechanism, the present utility model allows the operator to adjust the sandblasting intensity and the sand material discharging speed according to actual needs, improving the flexibility and applicability of the sandblaster. Especially in occasions such as dealing with stubborn stains that require high-intensity sandblasting, the operation efficiency and quality can be significantly improved. Description of the drawings

[0010] Figure 1 is the structural schematic diagram of the present utility model;

[0011] Figure 2 is Figure 1 the partial cross-sectional structural schematic diagram;

[0012] Figure 3 is the structural schematic diagram of the spray pipe part of the present utility model;

[0013] Figure 4 is the structural schematic diagram of the variable-diameter mechanism of the present utility model;

[0014] Figure 5 is the structural explosion diagram of the variable-diameter mechanism of the present utility model.

[0015] In all the drawings, the specific reference numerals are as follows: 1, sandblaster; 2, sand storage hopper; 3, feeding pipe; 4, conveying pipe; 5, air conveying pipe; 6, spray pipe; 7, sieve plate; 8, variable-diameter mechanism; 9, foot switch; 81, connecting ring; 82, cover ring; 83, movable ring; 84, sliding hole; 85, variable-diameter blade; 86, sliding column; 87, connecting column; 88, strip hole; 89, lever. Detailed implementation manners

[0016] As shown in Figures 1-5 the figure: A feeding nozzle for a sandblasting machine, comprising a sandblasting machine 1 and an air compressor. The main body of the sandblasting machine 1 is of a housing structure. The sandblasting machine 1 includes a sand storage hopper 2, and the bottom of the sandblasting machine 1 is the sand storage hopper 2. The bottom end of the sand storage hopper 2 is fixedly connected and communicated with a blanking pipe 3. A valve is installed on the blanking pipe 3. Inside the sandblasting machine 1, there is a spray pipe 6. The bottom of the right side wall of the sand storage hopper 2 is fixedly connected and communicated with a feeding pipe 4. The other end of the feeding pipe 4 penetrates through the upper part of the outer wall of the sandblasting machine 1 along the outer wall of the sandblasting machine 1, and the other end of the feeding pipe 4 is fixedly connected and communicated with the bottom of the outer wall of the spray pipe 6. The tail end of the spray pipe 6 is fixedly connected and communicated with an air delivery pipe 5. The other end of the air delivery pipe 5 penetrates through the outer wall of the sandblasting machine 1 and is communicated with the air compressor. The top inner wall of the sand storage hopper 2 is fixedly connected with a sieve plate 7. The head end of the spray pipe 6 is connected with a variable diameter mechanism 8. Below the sandblasting machine 1, there is a foot switch 9, and the foot switch 9 is electrically connected to the air compressor.

[0017] The variable diameter mechanism 8 includes a connecting ring 81 and a cover ring 82. Both the connecting ring 81 and the cover ring 82 are in the shape of a bottle cap and have an opening in the middle. The right inner wall of the connecting ring 81 has threads, and the right inner wall of the connecting ring 81 is threadedly sleeved with the head end of the spray pipe 6. The cover ring 82 is fixedly connected to the left outer wall of the connecting ring 81. The inner side of the cover ring 82 has a movable ring 83. The outer wall of the movable ring 83 is slidably matched with the inner wall of the cover ring 82. The movable ring 83 is circular. A plurality of sliding holes 84 are provided on the side wall of the movable ring 83. The sliding holes 84 are arc-shaped and are evenly distributed around the center of the movable ring 83. On the right side of the movable ring 83, there are a plurality of variable diameter vanes 85. The variable diameter vanes 85 correspond to the sliding holes 84 one by one. The variable diameter vanes 85 are in the shape of an acute triangle with the acute angle facing inwards into the circular hole of the movable ring 83. The outer end of the left side wall of the variable diameter vane 85 is vertically fixedly connected with a sliding column 86. The sliding column 86 is inserted into the sliding hole 86 and is slidably matched with the sliding hole 86. The obtuse angle of the right side wall of the variable diameter vane 85 is vertically fixedly connected with a connecting column 87. The connecting column 87 is rotatably connected to the left side wall of the connecting ring 81. A strip hole 88 is provided on the top of the cover ring 82. The top of the movable ring 83 is fixedly connected with a lever 89. The lever 89 is in the shape of an L. One end of the lever 89 passes through the strip hole 88 downward, and one end of the lever 89 has a clearance fit with the strip hole 88. The other end of the lever 89 is outside the outer wall of the connecting ring 81, and the other end of the lever 89 has a clearance fit with the outer wall of the connecting ring 81.

[0018] Both the sandblasting machine 1 and the air compressor are prior art devices. The present invention only protects the variable diameter mechanism 8 part.

[0019] When the sandblasting machine 1 is in the standby state, the sand storage hopper 2 is filled with an appropriate amount of sand material. The sieve plate 7 is located at the top of the sand storage hopper 2 and is used for screening and recycling the used sand material. The valve of the blanking pipe 3 is closed to prevent the sand material from flowing out automatically. The foot switch 9 is not stepped on, and the air compressor remains in the shutdown state.

[0020] The operator steps on the foot switch 9, and the air compressor is turned on, allowing the air compressor to introduce high-pressure gas into the nozzle 6 through the air delivery pipe 5. The flow of the high-pressure gas forms a negative pressure area in the nozzle 6, and the sand material at the bottom of the sand storage hopper 2 is extracted through the material delivery pipe 4.

[0021] The extracted sand material is mixed with the high-pressure gas in the nozzle 6 and then ejected from the head end of the nozzle 6. The ejected sand material impacts the surface to be treated at a certain speed and quantity, completing the sandblasting operation.

[0022] The operator can change the caliber of the port of the nozzle 6 by adjusting the variable diameter mechanism 8. Specifically, by toggling the lever 89 outward or inward, the movable ring 83 is driven to slide within the cover ring 82. The movement of the movable ring 83 causes changes in the tilt angle and position of the variable diameter blades 85, thereby changing the caliber size of the outlet of the nozzle 6. When the caliber is reduced, the sand material is ejected more concentratedly, and the sandblasting intensity increases, which is suitable for treating surfaces such as stubborn stains that are difficult to clean.

[0023] After the ejected sand material completes the sandblasting operation, the large sand material will fall back into the sand storage hopper 2 through the sieve holes of the sieve plate 7, realizing the recycling of the sand material. The present utility model only protects the mechanical part, and the functions realized through the software control part related thereto are not within the protection scope of the present utility model.

Claims

1. A feeding nozzle for a sandblasting machine, comprising a sandblasting machine (1) and an air compressor, wherein the main body of the sandblasting machine (1) is a shell structure, the sandblasting machine (1) comprises a sand storage hopper (2), and the bottom of the sandblasting machine (1) is the sand storage hopper (2), characterized in that: The bottom end of the sand storage hopper (2) is fixedly connected to a feed pipe (3), and a valve is installed on the feed pipe (3). The inside of the sand blasting machine (1) is provided with a nozzle (6). The bottom of the right wall of the sand storage hopper (2) is fixedly connected to a feed pipe (4). The other end of the feed pipe (4) passes through the upper part of the outer wall of the sand blasting machine (1) along the outer wall of the sand blasting machine (1). The other end of the feed pipe (4) is fixedly connected to the bottom of the outer wall of the nozzle (6). The tail end of the nozzle (6) is fixedly connected to an air supply pipe (5). The other end of the air supply pipe (5) passes through the outer wall of the sand blasting machine (1) and is connected to an air compressor. The top inner wall of the sand storage hopper (2) is fixedly connected to a sieve plate (7). The head end of the nozzle (6) is connected to a diameter reducing mechanism (8). A foot switch (9) is provided below the sand blasting machine (1). The foot switch (9) is electrically connected to the air compressor.

2. A feeding nozzle for a sandblasting machine according to claim 1, characterized in that: The diameter-changing mechanism (8) comprises a connecting ring (81) and a cover ring (82). Both the connecting ring (81) and the cover ring (82) are in the shape of bottle caps and have an opening in the middle. The right inner wall of the connecting ring (81) has a thread. The right inner wall of the connecting ring (81) is threadedly sleeved with the head end of the nozzle (6). The cover ring (82) is fixedly connected to the left outer wall of the connecting ring (81). The inner side of the cover ring (82) has a movable ring (83). The outer wall of the movable ring (83) is slidably matched with the inner wall of the cover ring (82). The movable ring (83) is in the shape of a circular ring. A plurality of sliding holes (84) are opened on the side wall of the movable ring (83). The sliding holes (84) are in the shape of circular arcs and are evenly distributed around the center of the movable ring (83). The right side of the movable ring (83) has a plurality of diameter-changing blades (85). The diameter-changing blades (85) correspond to the sliding holes (84) one by one. The diameter-changing blades (85) are ) is in an acute triangle shape with the acute angle facing inwards in the circular hole of the movable ring (83); the outer end of the left wall of the variable diameter blade (85) is vertically fixedly connected to a sliding column (86); the sliding column (86) is inserted into the sliding hole (84) and slides with the sliding hole (84); a connecting column (87) is vertically fixedly connected at an obtuse angle of the right wall of the variable diameter blade (85); the connecting column (87) is rotatably connected to the left wall of the connecting ring (81); a strip hole (88) is opened at the top of the cover ring (82); a lever (89) is fixedly connected to the top of the movable ring (83); the lever (89) is L-shaped; one end of the lever (89) passes through the strip hole (88) downwards; one end of the lever (89) is clearance-matched with the strip hole (88); the other end of the lever (89) is outside the outer wall of the connecting ring (81); the other end of the lever (89) is clearance-matched with the outer wall of the connecting ring (81).

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