Sand control valve and sand blasting machine

Abstract

The utility model relates to a sand control valve which comprises a valve body, a feeding channel and a discharging channel are arranged at two ends of the valve body, a sand control cavity is arranged in the valve body, and a sand discharging channel communicated with the feeding channel and the discharging channel is formed in the sand control cavity. A sand control cavity is formed in the valve body, a swing part is arranged in the sand control cavity, a driving device is arranged outside the valve body and connected with the swing part, and the swing part can be driven by the driving device to move in the sand discharging channel and the two sides of the sand discharging channel and stop at any position. According to the sand blasting device, the openness of the sand discharging channel can be adjusted by adjusting the position of the swinging piece in the sand discharging channel, so that the sand discharging amount is adjusted, the flow of sand blasting grinding materials is controlled, and the purpose of controlling different sand blasting forces and different sand blasting amounts of sand blasting operation is achieved. The utility model further provides a sand blasting machine which comprises a sand control valve.

Description

[Technical field]

[0001] The utility model relates to the technical field of sandblasting machines, in particular to a sand control valve, a sandblasting machine and a foam bottle. [Background technology]

[0002] Sandblasting is a process of impacting and cutting the surface of workpieces with abrasives, which can thoroughly remove dirt, oxide layers, scratches, coatings, rust and other substances on the surface of objects, so that the surface of the workpiece can obtain a certain degree of cleanliness and different degrees of roughness, improve the mechanical properties of the workpiece surface, enhance the fatigue resistance of the workpiece, increase the adhesion between it and the coating, extend the durability of the coating, and also facilitate the leveling and decoration of the coating, eliminate the residual stress of the workpiece and improve the surface hardness of the substrate.

[0003] A sandblasting machine generally includes a sand storage box, a sandblasting box and a sandblasting assembly. The sandblasting assembly includes a sandblasting gun. During sandblasting, the workpiece is placed in the sandblasting box, and the abrasive in the sand storage box is supplied to the sandblasting assembly through a pipeline. The sandblasting gun sprays the abrasive onto the surface of the workpiece to perform sandblasting. Since the size of the workpiece to be sandblasted may be different each time, the requirements for the amount of sand produced by sandblasting are also different. Even in the same workpiece, the area of ​​each surface is different, and the amount of sand produced by sandblasting is also different. Therefore, we need to regulate the amount of sandblasting into the sandblasting gun. In the patent with publication number CN106363539B, an automated sandblasting system and method based on image recognition is disclosed. In the patent, the compressed air pressure value at the air inlet of the sandblasting gun is changed by adjusting the electric pressure regulating valve, thereby controlling the flow rate of sandblasting particles, and achieving the purpose of controlling different sandblasting intensities of sandblasting operation.

[0004] Since the electric pressure regulating valve has high technical requirements and high air tightness requirements for the pipeline, if there is leakage or other problems, it will be very troublesome to adjust the air pressure value.

[0005] To solve the above problems, we provide a solution. [Contents of the utility model]

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a sand control valve and a sand blasting machine, and the technical solution adopted is:

[0007] A sand control valve comprises a valve body, wherein the valve body is provided with a feed channel and a discharge channel at both ends thereof, a sand control cavity is provided inside the valve body, and a lower sand channel connecting the feed channel and the discharge channel is formed in the sand control cavity; a swinging member is provided in the sand control cavity, and a driving device is provided outside the valve body, the driving device is connected to the swinging member, and the swinging member can move in the lower sand channel and the two sides of the lower sand channel under the driving of the driving device and stop at any position to control the flow rate of the lower sand channel.

[0008] According to a sand control valve of an embodiment of the utility model, the size of the swing member is not less than the cross-sectional size of the lower sand channel.

[0009] According to a sand control valve of an embodiment of the utility model, a sand lowering inner tube is provided in the sand control cavity of the valve body, the head end of the sand lowering inner tube is connected to the feed channel, and the tail end thereof faces the discharge channel, and a sand lowering channel is formed between the tail end of the sand lowering inner tube and the discharge channel.

[0010] According to a sand control valve of an embodiment of the utility model, the swinging member is an arc-shaped piece provided below the tail end of the lower sand inner tube.

[0011] According to a sand control valve of an embodiment of the utility model, the swing member is arranged between the tail end of the lower sand inner tube and the discharge channel, connecting plates are provided on both sides of the swing member, and a pair of connecting plates are hinged to the lower sand inner tube.

[0012] According to a sand control valve of an embodiment of the utility model, the driving device includes a cylinder, a crank connecting rod, and a driving shaft, and the driving shaft is connected to a hinge point of one of the connecting pieces.

[0013] According to a sand control valve of an embodiment of the utility model, the feed channel of the valve body includes a feed port arranged at the end of the valve body and a sand feed pipe arranged at the feed port, and the sand feed pipe is provided with a connecting flange at one end away from the feed port.

[0014] According to a sand control valve of an embodiment of the utility model, the discharge channel of the valve body includes a discharge port arranged at the end of the valve body and a sand discharge pipe arranged at the discharge port.

[0015] A sandblasting machine comprises a sand storage box, a sandblasting box, a sandblasting gun, a sandblasting pipe, and also comprises a sand control valve as described in any one of the above items; the sand control valve is connected between the sandblasting pipe and the sandblasting gun.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] In the utility model, the position of the swinging member in the sand discharging channel can be adjusted to adjust the opening degree of the sand discharging channel, thereby adjusting the sand discharging amount, thereby controlling the flow of the sandblasting abrasive, and achieving the purpose of controlling different sandblasting intensities and different sandblasting amounts in the sandblasting operation.

Brief Description of the Drawings

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0020] Description of main component symbols:

[0021] 10. Valve body; 20. Sand control chamber; 30. Sand discharging channel; 40. Swinging piece; 41. Connecting piece; 50. Sand discharging inner tube; 60. Cylinder; 70. Crank connecting rod; 80. Driving shaft; 90. Sand inlet pipe; 91. Connecting flange; 100. Sand outlet pipe. [Specific implementation method]

[0022] The embodiments of the present invention are described in detail below. The embodiments are shown in the accompanying drawings, wherein the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions.

[0023] The orientation shown in the drawings cannot be understood as limiting the specific protection scope of the present utility model, and is only provided for reference and understanding of the preferred embodiments. The product components shown in the drawings may be changed in position, increased in number, or simplified in structure.

[0024] The "connection" described in the specification and the mutual "connection" relationship of the components shown in the drawings can be understood as a fixed connection or a detachable connection or an integral connection; it can be a direct connection or a connection through an intermediate medium. Ordinary technicians in this field can understand the connection relationship according to the specific circumstances and can derive different implementation methods in an appropriate manner such as screwing, riveting, welding, clamping or embedding.

[0025] With respect to the directional words such as up, down, left, right, top, bottom, etc. described in the specification and the directions shown in the drawings, the components may be in direct contact or in contact through other features between them; for example, "above" may mean directly above or obliquely above, or it simply means higher than other objects; other directions may be understood by analogy.

[0026] The materials for making parts with solid shapes shown in the specification and drawings may be metal materials, non-metal materials or other synthetic materials; the mechanical processing techniques used for parts with solid shapes may be stamping, forging, wire cutting, laser cutting, casting, injection molding, CNC milling, 3D printing, machining, etc.; ordinary technicians in this field can adaptively select or combine them according to different processing conditions, costs, and precisions, but are not limited to the above-mentioned materials and manufacturing processes.

[0027] The utility model provides a sand control valve, such as Figure 1As shown, it includes a valve body 10, wherein the valve body 10 is provided with a feed channel and a discharge channel at both ends thereof, a sand control cavity 20 is provided in the valve body 10, and a lower sand channel 30 connecting the feed channel and the discharge channel is formed in the sand control cavity 20; a swing member 40 is provided in the sand control cavity 20, and a driving device is provided outside the valve body 10, wherein the driving device is connected to the swing member 40, and the swing member 40 can move in the lower sand channel 30 and the two sides of the lower sand channel 30 under the driving of the driving device and stop at any position to control the flow rate of the lower sand channel 30.

[0028] The utility model also provides a sandblasting machine, comprising a sand storage box, a sandblasting box, a sandblasting gun, a sandblasting pipe, and also comprising any one of the above-mentioned sand control valves; the sand control valve is connected between the sandblasting pipe and the sandblasting gun.

[0029] When the sandblasting machine is working, the abrasive in the sand storage box enters the sand control valve through the sandblasting pipe, specifically, enters the lower sand channel 30 in the valve body 10 through the feed channel; at this time, the position of the swing member 40 is adjusted according to the demand for sandblasting amount. When the required sandblasting amount is small, the driving device adjusts the swing member 40 to the lower sand channel 30, so that the swing member 40 can intercept most of the abrasive in the lower sand channel 30, or even completely block it. When the required sandblasting amount is large, the driving device adjusts the swing member 40 to the side of the lower sand channel 30. At this time, most of the lower sand channel 30 is opened, or even the lower sand channel 30 is completely opened. In the utility model, the position of the swing member 40 can be adjusted to adjust the opening degree of the lower sand channel 30, thereby adjusting the amount of sand discharge; after passing through the lower sand channel 30, the abrasive comes out from the discharge channel and enters the sandblasting gun, and the sandblasting gun performs sandblasting on the workpiece.

[0030] In some embodiments of the present invention, the size of the swing member 40 is not less than the cross-sectional size of the sand lowering channel 30 . When the swing member 40 is located in the sand lowering channel 30 , the sand lowering channel 30 can be completely blocked.

[0031] In some embodiments of the present invention, Figure 1 As shown, a lower sand inner tube 50 is provided in the sand control cavity 20 of the valve body 10 , the head end of the lower sand inner tube 50 is connected to the feed channel, and the tail end thereof faces the discharge channel, and a lower sand channel 30 is formed between the tail end of the lower sand inner tube 50 and the discharge channel.

[0032] In some embodiments of the present invention, Figure 1 As shown, the swing member 40 is an arc-shaped piece provided below the tail end of the lower sand inner tube 50, and the swing member 40 is provided between the tail end of the lower sand inner tube 50 and the discharge channel, and connecting pieces 41 are provided on both sides of the swing member 40, and a pair of connecting pieces 41 are hinged to the lower sand inner tube 50. The swing member 40 can swing with the hinge as the axis.

[0033] In some embodiments of the present invention, Figure 1 As shown, the driving device includes a cylinder 60, a crank connecting rod 70, and a driving shaft 80. The driving shaft 80 is connected to the hinge point of one of the connecting plates 41. When the swing member 40 needs to be adjusted, the cylinder 60 drives the crank connecting rod 60 to move, and the crank connecting rod 60 drives the driving shaft 80 to move. The driving shaft 80 drives the connecting plate 41 on the hinge point to swing, thereby driving the swing member 40 to swing.

[0034] In some embodiments of the present invention, Figure 1 As shown, the feed channel of the valve body 10 includes a feed port arranged at the end of the valve body 10 and a sand feed pipe 90 arranged at the feed port, and the sand feed pipe 90 is provided with a connecting flange 91 at the end away from the feed port; the discharge channel of the valve body 10 includes a discharge port arranged at the end of the valve body 10 and a sand discharge pipe 100 arranged at the discharge port.

[0035] Although the utility model is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that various changes or modifications can be made to the utility model without departing from the principle and spirit of the utility model defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, not to limit the utility model, but the scope of protection is limited by the content of the claims.

Claims

1. A sand control valve, characterized in that: The invention comprises a valve body (10), wherein the valve body (10) is provided with a feed channel and a discharge channel at both ends thereof, wherein a sand control chamber (20) is provided inside the valve body (10), wherein a lower sand channel (30) connecting the feed channel and the discharge channel is formed inside the sand control chamber (20); wherein a swing member (40) is provided inside the sand control chamber (20), and a driving device is provided outside the valve body (10), wherein the driving device is connected to the swing member (40), and wherein the swing member (40) can move between the lower sand channel (30) and the two sides of the lower sand channel (30) under the driving of the driving device and can stop at any position to control the flow rate of the lower sand channel (30).

2. A sand control valve according to claim 1, characterized in that: The size of the swinging member (40) is not less than the cross-sectional size of the lower sand channel (30).

3. A sand control valve according to claim 1, characterized in that: A lower sand inner tube (50) is provided in the sand control cavity (20) of the valve body (10), the head end of the lower sand inner tube (50) is connected to the feed channel, the tail end of the lower sand inner tube (50) faces the discharge channel, and a lower sand channel (30) is formed between the tail end of the lower sand inner tube (50) and the discharge channel.

4. A sand control valve according to claim 3, characterized in that: The swinging member (40) is an arc-shaped piece arranged below the tail end of the lower sand inner tube (50).

5. A sand control valve according to claim 4, characterized in that: The swing member (40) is arranged between the tail end of the lower sand inner tube (50) and the material discharge channel, and connecting pieces (41) are arranged on both sides of the swing member (40), and a pair of connecting pieces (41) are hinged to the lower sand inner tube (50).

6. A sand control valve according to claim 4, characterized in that: The driving device comprises a cylinder (60), a crank connecting rod (70), and a driving shaft (80), wherein the driving shaft (80) is connected to a hinge point of one of the connecting pieces (41).

7. The sand control valve according to claim 1, characterized in that: The feed channel of the valve body (10) comprises a feed port arranged at the end of the valve body (10) and a sand feed pipe (90) arranged at the feed port, and the sand feed pipe (90) is provided with a connecting flange (91) at one end away from the feed port.

8. The sand control valve according to claim 1, characterized in that: The discharge channel of the valve body (10) comprises a discharge port arranged at the end of the valve body (10) and a sand discharge pipe arranged at the discharge port.

9. A sandblasting machine, comprising a sand storage box, a sandblasting box, a sandblasting gun, and a sandblasting tube, characterized in that: It also includes a sand control valve according to any one of claims 1 to 8; the sand control valve is connected between the sand blasting pipe and the sand blasting gun.

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