Automatic sand blasting and returning system

Abstract

The utility model provides an automatic sand blasting and sweeping system which comprises a rotary bed used for fixing a workpiece to be sprayed, a sand grain recycling bin, a spiral conveyor, a cyclone dust removal sand sweeping tank, a vibrating screen and a sanding tank, the rotary bed is movably arranged on the sand grain recycling bin, and a conveying channel of the spiral conveyor is arranged at the bottom of the sand grain recycling bin in a communicated mode. The outlet end of the spiral conveyor is connected with the cyclone dust removal sand sweeping tank, a sand outlet of the cyclone dust removal sand sweeping tank is located above the vibrating screen, and the vibrating screen is connected with the sanding tank. According to the utility model, the sand blasting cost is greatly reduced, the recycling rate of sand grains is improved, and environmental pollution is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sandblasting, in particular to an automatic sandblasting and sand-returning system. Background Art

[0002] Automatic sandblasting machine is a mechanical device that can use abrasives with the help of compressed air to spray onto the surface of the workpiece. In the process of converting kinetic energy into potential energy, the high-speed moving sand particles scour the surface of the object, thereby improving the surface quality of the object.

[0003] Automatic sandblasting machines generate a large amount of workpiece debris, dust and excess sand during the sandblasting process. Therefore, recycling equipment is needed to remove dust and recycle sand. However, traditional automatic sandblasting machines have poor dust removal effects and cannot avoid or solve this phenomenon. This will greatly increase the sandblasting cost, reduce the recycling rate of sand, and cause great pollution to the working environment. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model proposes an automatic sand blasting and sand returning system, which greatly reduces the sand blasting cost, improves the recovery rate of sand particles, and avoids pollution to the environment.

[0005] The technical solution of the present utility model is achieved as follows:

[0006] An automatic sandblasting and sand returning system includes a rotary bed for fixing a workpiece to be sprayed, a sand recovery silo, a screw conveyor, a cyclone dust removal and sand returning tank, a vibrating screen and a sand blasting tank. The rotary bed is movably arranged on the sand recovery silo. The conveying channel of the screw conveyor is connected to the bottom of the sand recovery silo. The outlet end of the screw conveyor is connected to the cyclone dust removal and sand returning tank. The sand outlet of the cyclone dust removal and sand returning tank is located above the vibrating screen. The vibrating screen is connected to the sand blasting tank.

[0007] Preferably, the turntable includes a turntable frame for fixing the workpiece to be sprayed, a driver, a rotating wheel structure and an electrical box. The electrical box and the driver are placed at the front end of the turntable frame, the rotating wheel structure is arranged at the bottom of the turntable frame, and the driver is connected to the rotating wheel structure to drive the turntable frame together with the workpiece to be sprayed to move on the sand recovery bin.

[0008] Preferably, the rotating wheel structure includes two side rotating wheels and a rotating shaft, the two side rotating wheels are respectively connected to the two sides of the rotating shaft, and the two side rotating wheels are respectively fixed to the two sides of the bottom of the turntable frame.

[0009] Preferably, the rotating wheel is a V-shaped wheel, and a first V-shaped slideway is provided on the left and right sides above the sand recovery silo, and the V-shaped wheel matches the first V-shaped slideway.

[0010] Preferably, the automatic sandblasting and sand recovery system also includes a rotary bed rack, above which a second V-shaped slide matching the rotary wheel is provided, the second V-shaped slide and the first V-shaped slide are linearly connected, and the turntable frame can move back and forth between the rotary bed rack and the sand recovery silo through the rotating wheel structure.

[0011] Preferably, a sandblasting sealing plate is provided at the front end of the rotary bed.

[0012] Preferably, the cross section of the screw conveyor casing is U-shaped, and the length of the upper opening thereof matches the length of the discharge port at the bottom of the sand recovery silo.

[0013] Preferably, a sand extraction and dust removal pipe is provided on the side of the cyclone dust removal sand return tank, and is connected to the outlet end of the screw conveyor through the sand extraction and dust removal pipe; a dust removal air outlet is provided on the top of the cyclone dust removal sand return tank.

[0014] Preferably, the vibrating disk surface of the vibrating screen is three-layered, and the vibrating disk surface is provided with a large miscellaneous material outlet channel, a qualified sand particle outlet channel and a dust outlet channel from top to bottom. The large miscellaneous material outlet channel and the dust outlet channel are respectively connected to a waste barrel, and the qualified sand particle outlet channel is connected to a sand blasting tank.

[0015] Preferably, an inverted cone-shaped receiving hopper is provided above the sand blasting tank.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The utility model comprises a rotary bed, a sand recovery silo, a screw conveyor, a cyclone dust removal sand return tank, a vibrating screen and a sand blasting tank. During operation, the workpiece to be sprayed is placed on the rotary bed, the rotary bed moves the workpiece to the bottom of the spraying equipment, and the spraying equipment sprays the workpiece above the sand recovery silo. During the spraying process, the workpiece debris, dust and excess sand generated are mixed along the silo wall of the sand recovery silo and enter the screw conveyor. The screw conveyor conveys the mixture to the outlet end. At the same time, the cyclone dust removal sand return tank performs preliminary sand extraction and dust removal treatment on the mixture at the outlet end, and then the mixture enters the vibrating screen. The vibrating screen separates large miscellaneous materials, qualified sand and dust through vibration, and the qualified sand enters the sand blasting tank to be used again by the spraying equipment. Such a cycle greatly reduces the sand blasting cost, improves the recovery rate of the sand, and effectively avoids pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 This is an overall schematic diagram of the automatic sandblasting and sand returning system of the utility model;

[0020] Figure 2 This is an overall schematic diagram of the automatic sandblasting and sand returning system of the utility model;

[0021] Figure 3 This is a schematic diagram of the transfer bed of the present invention;

[0022] Figure 4 for Figure 1 A in the middle is an enlarged schematic diagram;

[0023] Figure 5 for Figure 2 The enlarged schematic diagram of point B in the middle;

[0024] Figure 6 It is a schematic diagram of the recycling rack in the present utility model.

[0025] Figure ID:

[0026] 1. Rotating bed; 11. Rotating table frame; 12. Drive; 13. Rotating wheel structure; 131. Rotating wheel; 132. Rotating shaft; 14. Electric box; 15. Sandblasting sealing plate; 2. Sand recovery silo; 21. First V-shaped slide; 3. Screw conveyor; 4. Cyclone dust collection sand return tank; 41. Sand extraction and dust removal pipe; 42. Dust removal air outlet; 5. Vibrating screen; 51. Large miscellaneous material outlet channel; 52. Qualified sand outlet channel; 53. Dust outlet channel; 6. Sand blasting tank; 61. Inverted cone receiving hopper; 7. Rotating bed placement rack; 71. Second V-shaped slide; 8. Waste bin; 9. Recovery rack. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," "third," and "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] like Figures 1 to 6 The figure shows an automatic sandblasting and sand return system provided by the utility model, comprising a rotary bed 1 for fixing a workpiece to be sprayed, a sand recovery silo 2, a screw conveyor 3, a cyclone dust removal sand return tank 4, a vibrating screen 5 and a sand blasting tank 6. The rotary bed 1 is movably arranged on the sand recovery silo 2, the conveying channel of the screw conveyor 3 is connected to the bottom of the sand recovery silo 2, the outlet end of the screw conveyor 3 is connected to the cyclone dust removal sand return tank 4, the sand outlet of the cyclone dust removal sand return tank 4 is located above the vibrating screen 5, and the vibrating screen 5 is connected to the sand blasting tank 6;

[0031] Specifically, if Figure 3 and Figure 4As shown, the rotary table 1 includes a turntable frame 11 for fixing the workpiece to be sprayed, a driver 12, a rotating wheel structure 13 and an electric box 14. The electric box 14 and the driver 12 are both placed at the front end of the turntable frame 11, and the rotating wheel structure 13 is arranged at the bottom of the turntable frame 11. More specifically, the rotating wheel structure 13 includes two side wheels 131 and a rotating shaft 132. The two side wheels 131 are respectively connected to the two sides of the rotating shaft 132, and the two side wheels 131 are respectively fixed to the two sides of the bottom of the turntable frame 11; the driver 12 is driven and connected to the rotating shaft 132, and the driver 12 can drive the rotation The shaft 132 rotates, and since the two side wheels 131 are respectively connected to the two sides of the rotating shaft 132, the two side wheels 131 will rotate as the rotating shaft 132 rotates. Since the rotating wheel 131 is a V-shaped wheel, first V-shaped slideways 21 are provided on the left and right sides above the sand recovery bin 2. The V-shaped wheel matches the first V-shaped slideway 21, so that the two side wheels 131 can drive the turntable frame 11 to move back and forth on the first V-shaped slideway 21, that is, above the sand recovery bin 2. Since the workpiece to be sprayed is fixed on the turntable frame 11, it can drive the workpiece to be sprayed to move back and forth above the sand recovery bin 2;

[0032] like Figure 6 As shown, the vibrating disc of the vibrating screen 5 has three layers, and the vibrating disc is provided with a large material outlet channel 51, a qualified sand outlet channel 52 and a dust outlet channel 53 from top to bottom. The large material outlet channel 51 and the dust outlet channel 53 are respectively connected to a waste bin 8, and the qualified sand outlet channel 52 is connected to the sand blasting tank 6;

[0033] During the specific operation, the workpiece to be sprayed is placed on the turntable frame 11, and the driving shaft 132 is driven to rotate by the driver 12, driving the rotating wheels 131 on both sides to move on the first V-shaped slide 21, thereby driving the workpiece to be sprayed to move above the sand recovery silo 2 and move to the bottom of the spraying equipment. The spraying equipment sprays the workpiece above the sand recovery silo 2. During the spraying process, the workpiece debris, dust and excess sand generated will be mixed along the inclined silo wall of the sand recovery silo 2 and enter the screw conveyor 3. The screw conveyor 3 pushes the mixture to the outlet end based on the rotating spiral blades. At the same time, the cyclone dust removal sand return tank 4 uses the centrifugal force generated by the rotating airflow to perform preliminary sand extraction on the mixture at the outlet end of the screw conveyor 3. After the dust removal treatment, the mixture after the preliminary sand extraction and dust removal treatment falls into the vibrating screen 5 along the inverted cone discharge port of the cyclone dust removal sand return tank 4. The vibrating screen 5 gradually separates the large debris, qualified sand particles and dust through vibration classification. The larger large debris will be screened into the waste bin 8 through the top large debris outlet channel 51, and the dust will be screened into another waste bin 8 through the bottom dust outlet channel 53, and the qualified sand particles will enter the sand blasting tank 6 through the middle layer qualified sand particle outlet channel 52 for reuse. Then compressed air is introduced, and the spraying equipment uses the recovered sand particles to continue spraying the workpiece. Such a cycle greatly reduces the sandblasting cost, improves the sand particle recovery rate, and effectively avoids pollution to the environment.

[0034] Furthermore, if Figure 1 and Figure 2 As shown, the automatic sandblasting and sand returning system further includes a rotary bed placement frame 7, and a second V-shaped slideway 71 matching the rotating wheel 131 is provided above the rotary bed placement frame 7, as shown in FIG. Figure 5 As shown, the second V-shaped slide 71 and the first V-shaped slide 21 are connected in a straight line, and the turntable frame 11 can move back and forth on the second V-shaped slide 71 and the first V-shaped slide 21 through the rotating wheel structure 13, that is, the turntable frame 11 can move back and forth between the turntable placement rack 7 and the sand recovery silo 2. When the spraying equipment is not working, the turntable frame 11 can be moved to the turntable placement rack 7. When the spraying equipment starts working, the turntable frame 11 can be moved to the top of the sand recovery silo 2 to prepare for sandblasting.

[0035] Furthermore, if Figure 2 As shown, a sandblasting sealing plate 15 is provided at the front end of the rotary bed 1. The design of the sandblasting sealing plate 15 can prevent sand from being sprayed at high speed to places outside the sand recovery bin 2 during the spraying process, thereby avoiding environmental pollution and improving the utilization rate of the sand.

[0036] Furthermore, if Figure 1 and Figure 2As shown, the cross-section of the casing of the screw conveyor 3 is U-shaped, and the length of its upper opening matches the length of the discharge port at the bottom of the sand recovery silo 2. Therefore, the mixture on the inclined silo wall of the sand recovery silo 2 can fall completely into the screw conveyor 3, thereby improving the recovery rate of the sand to a certain extent.

[0037] Furthermore, if Figure 6 As shown, a sand extraction and dust removal pipe 41 is provided on the side of the cyclone dust collection sand return tank 4, and the cyclone dust collection sand return tank 4 is connected to the outlet end of the screw conveyor 3 through the sand extraction and dust removal pipe 41; a dust removal air outlet 42 is provided on the top of the cyclone dust collection sand return tank 4, and the cyclone dust collection sand return tank 4 uses the centrifugal force generated by the rotating airflow to separate the dust from the mixture. The lighter dust will be discharged from the cyclone dust collection sand return tank 4 along the dust removal air outlet 42, while the heavier sand particles, large debris and part of the dust will move downward due to their own gravity and enter the vibrating screen 5 for re-screening.

[0038] Furthermore, if Figure 6 As shown, an inverted cone-shaped receiving hopper 61 is provided above the sand blasting tank 6. The inverted cone-shaped receiving hopper 61 receives qualified sand from the qualified sand outlet channel 52 on the vibrating screen 5. The design of the inverted cone-shaped receiving hopper 61 can prevent qualified sand from falling into places outside the sand blasting tank 6, thereby avoiding waste of sand.

[0039] In addition, if Figure 6 As shown, the cyclone dust collection sand return tank 4, the vibrating screen 5, the sand blasting tank 6, and the waste barrel 8 are all placed on the recovery rack 9.

[0040] To sum up, during the specific operation of the present invention, the workpiece to be sprayed is placed on the rotary bed 1, the rotary bed 1 moves the workpiece to the bottom of the spraying equipment, and the spraying equipment sprays the workpiece above the sand recovery silo 2. During the spraying process, the workpiece debris, dust and excess sand generated are mixed along the wall of the sand recovery silo 2 and enter the screw conveyor 3. The screw conveyor 3 conveys the mixture to the outlet end. At the same time, the cyclone dust removal sand return tank 4 performs preliminary sand extraction and dust removal treatment on the mixture at the outlet end, and then the mixture enters the vibrating screen 5. The vibrating screen 5 separates large miscellaneous materials, qualified sand and dust through vibration. The qualified sand enters the sand blasting tank 6 to be used again by the spraying equipment. Such a cycle greatly reduces the sandblasting cost, improves the recovery rate of sand, and effectively avoids pollution to the environment.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic sandblasting and sand returning system, characterized in that: The invention comprises a rotary bed (1) for fixing a workpiece to be sprayed, a sand recovery bin (2), a screw conveyor (3), a cyclone dust removal sand return tank (4), a vibrating screen (5) and a sand blasting tank (6), wherein the rotary bed (1) is movably arranged on the sand recovery bin (2), the conveying channel of the screw conveyor (3) is connected to the bottom of the sand recovery bin (2), the outlet end of the screw conveyor (3) is connected to the cyclone dust removal sand return tank (4), the sand outlet of the cyclone dust removal sand return tank (4) is located above the vibrating screen (5), and the vibrating screen (5) is connected to the sand blasting tank (6).

2. The automatic sandblasting and sand returning system according to claim 1, characterized in that: The rotary bed (1) comprises a turntable frame (11) for fixing the workpiece to be sprayed, a driver (12), a rotating wheel structure (13) and an electric box (14), wherein the electric box (14) and the driver (12) are both placed at the front end of the turntable frame (11), the rotating wheel structure (13) is arranged at the bottom of the turntable frame (11), and the driver (12) is connected to the rotating wheel structure (13) to drive the turntable frame (11) and the workpiece to be sprayed to move on the sand recovery bin (2).

3. The automatic sandblasting and sand returning system according to claim 2, characterized in that: The rotating wheel structure (13) comprises rotating wheels (131) on both sides and a rotating shaft (132), wherein the rotating wheels (131) on both sides are respectively connected to both sides of the rotating shaft (132), and the rotating wheels (131) on both sides are respectively fixed to both sides of the bottom of the turntable frame (11).

4. The automatic sandblasting and sand returning system according to claim 3, characterized in that: The rotating wheel (131) is a V-shaped wheel, and first V-shaped slideways (21) are provided on the left and right sides above the sand recovery bin (2), and the V-shaped wheel matches the first V-shaped slideways (21).

5. The automatic sandblasting and sand returning system according to claim 4, characterized in that: The invention also includes a rotary bed rack (7), wherein a second V-shaped slideway (71) matching the rotating wheel (131) is provided above the rotary bed rack (7), and the second V-shaped slideway (71) and the first V-shaped slideway (21) are connected in a straight line. The turntable frame (11) can move back and forth between the rotary bed rack (7) and the sand recovery bin (2) via the rotating wheel structure (13).

6. The automatic sandblasting and sand returning system according to claim 1, characterized in that: A sandblasting sealing plate (15) is provided at the front end of the rotary bed (1).

7. The automatic sandblasting and sand returning system according to claim 1, characterized in that: The cross section of the casing of the screw conveyor (3) is U-shaped, and the length of the upper opening thereof matches the length of the bottom discharge port of the sand recovery bin (2).

8. The automatic sandblasting and sand returning system according to claim 1, characterized in that: A sand extraction and dust removal pipe (41) is provided on the side of the cyclone dust removal and sand return tank (4), and is connected to the outlet end of the screw conveyor (3) through the sand extraction and dust removal pipe (41); a dust removal air outlet (42) is provided on the top of the cyclone dust removal and sand return tank (4).

9. The automatic sandblasting and sand returning system according to claim 1, characterized in that: The vibrating disc of the vibrating screen (5) has three layers, and the vibrating disc is provided with a large miscellaneous material outlet channel (51), a qualified sand particle outlet channel (52) and a dust outlet channel (53) in sequence from top to bottom. The large miscellaneous material outlet channel (51) and the dust outlet channel (53) are respectively connected to a waste material bucket (8), and the qualified sand particle outlet channel (52) is connected to the sand blasting tank (6).

10. The automatic sandblasting and sand-returning system according to claim 9, characterized in that: An inverted cone-shaped receiving hopper (61) is provided above the sand blasting tank (6).

Images