KR200410941Y1 - shot ball supply valve for shot blast machine - Google Patents

Abstract

The present invention relates to a shot ball supply valve for a shot blasting machine, comprising: a main body provided with a polishing chamber therein; an injection device fixed to a circumferential wall of the main body and spraying the shot ball into the polishing chamber; A shot pipe supply passage for supplying a shot ball to the injection device, a transfer pipe for connecting both ends of the shot ball supply cylinder and an inlet of the injection device to guide the shot ball of the shot ball supply cylinder to the injection device; In the shot blasting apparatus consisting of a supply valve for supplying the shot ball of the ball supply container to the injection device or cut off the supply, the supply valve 100 is integrally coupled to the inlet 114 of the injection device 10, The supply valve 100 has a flow passage 114 that is open at both ends therein, the valve body 100 is provided with a valve seat 118 inclined at the center of the flow passage 114, and Composed of a valve body 120 for opening and closing the flow path 114 while being in close contact with or spaced from the valve seat 118, and a cylinder 130 fixed to the valve body 110 to operate the valve body 120. A short ball supply valve for a shot blasting machine is provided.

Shot, Shotball, Blast Machine, Shot, Valve

Description

Shot ball supply valve for shot blasting machine {shot ball supply valve for shot blast machine}

1 is an external perspective view of a short ball supply valve according to the present invention

2 is a cross-sectional view of the short ball supply valve according to the present invention

3 is a cross-sectional view of the installation state of the supply valve according to the present invention

<Explanation of symbols for the main parts of the drawings>

100. Supply valve 110. Valve body

114. Euro 118. Valve seat

119. Inclined part 120. Valve body

130. Cylinder 140. O-ring

The present invention relates to a shot ball supply valve for a shot blasting machine. More specifically, a plurality of shot balls are continuously sprayed onto a surface of a metal workpiece formed by casting, forging, rolling, etc. In the shot blasting machine capable of removing the molding sand, etc., the shot ball stored in the shot ball supply container is supplied to the injection device or to a supply valve for blocking the supply.

A shot blasting machine is a shot ball (steel ball) strongly applied to the surface of a workpiece in order to remove casting sand or scale appearing on the surface of a product (hereinafter referred to as a workpiece) formed by casting, forging, rolling, or the like. It is a device that causes the sand or scale to be polished / removed by the impact force by spraying, and an air type shot blast that sprays the shot ball by compressed air according to the injection method, and a centrifugal shot blast that sprays the shot ball by centrifugal force. It is roughly divided into flags.

The centrifugal shot blasting machine described in the shot blasting machine includes a main body having a grinding chamber provided therein and a ball inlet hole penetrating into the grinding chamber in the circumferential wall, and fixed to the ball inlet hole of the main body. An injection device having an impeller rotated by a motor to strongly spray the inside of the drink, a short ball supply cylinder installed at an upper side of the main body to supply a short ball to the injection apparatus, and a short ball stored in the short ball supply cylinder Both ends are respectively provided at the end of the transfer pipe connected to the outlet of the shot ball supply container and the inlet of the injection device so as to be supplied to the injector by self-weight, and the outlet of the shot ball supply container or the delivery pipe connected to the outlet side. It is composed of a supply valve which short circuits to the injection device or blocks supply.

At this time, the valve is installed in the discharge port of the short ball supply container or the circumferential wall of the transfer pipe connected to the discharge port so as to be moved forward and backward in a direction intersecting the transfer direction of the short ball, and close or close the pipeline while being in close contact with the inner wall surface. And a cylinder for moving the valve body forward and backward.

Therefore, if the impeller of the injector is rotated while the valve is opened while the workpiece is put into the main body, the shot ball is strongly sprayed into the workpiece of the polishing chamber by the rotational force of the impeller, and the workpiece is strongly reinforced. By hitting, the impact force removes scale, casting sand, and the like on the surface of the workpiece.

By the way, since the valve of the conventional shot blasting machine is provided in the outlet of the shot ball supply container which is not adjacent to the injector, or at the outlet side conveyance pipe, that is, the valve is not installed in the position adjacent to the injector, Since the shot ball is transported by the length of the conveying pipe because it is spaced apart by the length, there is a problem that can not perform the work, and also, when the operation stops by closing the impeller and the valve, the shot ball already introduced into the conveying pipe There is a problem that the working efficiency of the device, such as is discharged as it is falling.

On the other hand, the conventional supply valve is installed so that the valve body can be moved forward and backward in the direction orthogonal to the transfer direction of the shot ball is in close contact with the inner wall surface of the outlet port side of the shot ball supply cylinder or the inner wall surface of the discharge port side feed pipe of the shot ball When the valve is closed, the supply of the short ball is cut off. However, when the valve is closed, the short ball is caught between the valve body and the inner wall so that the valve cannot be completely closed, and the short ball is continuously discharged. .

Therefore, the present invention has been proposed to solve the fundamental problems of the prior art as described above, the object of the present invention is to improve the working efficiency of the device, the short blast of the new configuration to be able to close the valve accurately To provide a short ball supply valve for the machine.

In order to achieve the above object, the present invention is a main body provided with a polishing chamber therein, an injector fixed to the circumferential wall of the main body and spraying a shot ball to the polishing chamber, and installed on one side of the main body the injector A shot ball supply passage for supplying a short ball to the shot ball, a transfer pipe for connecting both ends of the shot ball supply cylinder and an inlet of the injection apparatus to guide the shot ball of the short ball supply cylinder to the injection apparatus, and the short ball supply cylinder In the shot blasting apparatus consisting of a supply valve for supplying the shot ball to the injector or cut off the supply, the supply valve is integrally coupled to the inlet of the injector, the supply valve is a flow path that is open at both ends therein The central portion of the flow path is inclined to the valve body is provided with a valve seat, and close or close to the valve seat to open and close the flow path The valve member and the valve body are securely fixed to the shot-blasting appointed short supply valve ball, characterized in that consisting of a cylinder for operating the valve body is provided.

<Example>

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 is an external perspective view of a short ball supply valve according to the present invention, Figure 2 is a cross-sectional view of the short ball supply valve according to the present invention, Figure 3 is a cross-sectional view of the installation state of the supply valve according to the present invention.

As shown, the shot ball supply valve for a shot blasting machine according to the present invention is a main body (not shown) having a polishing chamber provided therein, and the injection device is fixed to the circumferential wall of the body to spray the shot ball into the polishing chamber ( 10), a shot ball supply cylinder (not shown) installed at one side of the main body to supply the shot ball to the injection apparatus, and both ends of the short ball supply cylinder and the inlet 12 of the injection apparatus 10, respectively. In the shot blasting machine consisting of a connected conveying pipe (not shown), the shot ball stored in the shot ball supply cylinder is supplied to the injection device 10 or the supply valve 100 used to block the supply.

At this time, the supply valve 100 is integrally coupled to the inlet 12 of the injection device 10 which is fixed to the circumferential wall of the shot blasting machine to inject the shot ball into the grinding chamber, as shown in the figure . Therefore, since the supply valve 100 according to the present invention is integrally fixed to the inlet 12 of the injection apparatus 10 fixed to the circumferential wall of the shot blasting machine body, the short supply is immediately performed when the supply valve 100 is opened. As soon as the ball is supplied to the injector 10 and shut off, the short ball is not supplied to the injector 10.

A valve body 110 provided with a valve seat 118 in the supply valve 100, a valve body 120 which is in close contact with or spaced from the valve seat 118, and the valve body 120 is operated. It consists of a cylinder 130.

The valve body 110 is formed in a square pipe shape and the lower end is fixed to the inlet 12 of the injection device 10 to be installed in the vertical direction, the inlet 112 and the discharge port (up and down) in the upper and lower ends ( Circular passages 114 are formed to form 116, respectively, and the valve seat 118 is inclined downwardly in the center portion of the passage 114, that is, downwardly in the direction of feeding of the shot ball.

At this time, the tapered inclined portion 119 is provided at the inner circumferential portion of the lower end of the valve seat 118 so as to expand in diameter toward the end portion. Therefore, the valve body 120 is in close contact with the inclined portion 119 to open and close the flow path 114. At this time, the inclined portion 119 is formed with a ring-shaped coupling groove 119a concave inward, and the coupling groove 119a has a ring-shaped O-ring of rubber material such that one side circumference protrudes out of the inclined portion 119. 140 is inserted and fixed. Therefore, when the valve body 120 is closed, the shock is absorbed by the O-ring 140 to reduce the noise during the opening and closing operation of the valve.

At this time, the upper and lower ends of the valve body 110 is provided with a flange portion 111, the flange portion 111 is formed with a coupling hole 113 in the form of a long hole. Therefore, the lower end of the valve body 110 through the coupling hole 113 to be fixed to the injector 10 by a fastener, and the end of the short ball feed pipe 30 connected to the short ball supply cylinder at the upper end The fastener can be easily fixed. At this time, the coupling hole 113 is preferably opened to the outside of the flange (111).

At this time, the upper side wall of the valve body 110, that is, the threaded hole 115 penetrating through the flow path 114 is formed in the valve body 110 directly below the valve seat 118 provided to be inclined, The bolt 117 is coupled to the hole 115. Accordingly, when the bolt 117 is separated from the screw hole 115 without opening the valve body 120, the short ball introduced into the flow path 114 may be discharged to the screw hole 115.

At this time, one side wall of the valve body 110 is formed with a through hole 110a penetrating toward the central portion of the valve seat 118, the piston 132 to be described later through the through hole (110a) valve It is to be able to protrude into the body (110).

The valve body 120 is to close or close the inclined portion 119 of the valve seat 118 to open and close the flow path 114, it is formed of an elastic material, that is, urethane, but is formed in a hemispherical curved shape on one side . Therefore, the curved portion 122 of the valve body 120 is in close contact with the inclined portion 119 of the valve seat 118 to close the flow passage 114, and the valve body 120 is made of an elastic material. In addition, the shock absorber can be absorbed during opening and closing operation of the valve.

In this case, a coupling hole 124 having a screw is formed in the center of the horizontal portion of the valve body 120, so that the cylinder 130 can be connected and fixed to the coupling hole 124.

The cylinder 130 is installed to be inclined to the center of the valve seat 118 to the outside of the valve body 110 to open and operate the valve body 120, that is, the piston 134 is the valve seat The cylinder body 132 is fixedly coupled to the periphery of the through hole 100a to extend to the center portion. At this time, a screw is formed around the distal end of the piston 134 to fix the valve body 120 to the end of the piston 134.

Reference numeral 150 is a corrugated pipe (Java tube) surrounding the circumference of the piston 134.

According to this configuration, the supply valve 100 is fixed to the inlet 12 of the injection device 10 directly connected to the shot blasting machine body, that is, the supply valve 100 of the present invention is the injection device 10 When the valve is opened, the short ball is quickly supplied to the injector 10 when the valve is opened, and the supply of the short ball is quickly cut off when the valve is shut off. Therefore, the supply valve is discharged or transferred to the short ball supply container as in the prior art. It is installed on the top of the short ball is transported as long as the length of the conveying pipe does not perform the work as well as close the valve, the short ball introduced into the conveying pipe can be improved as compared to the discharged as it is.

In addition, since the valve seat 118 is inclined in the valve body 110 through the short ball feed path, the inclined portion 119 of the valve seat 118 inclined is provided with an elastic valve body 120. Since the valve is closed while being in close contact, in particular, since the O-ring 140 is coupled to the inclined portion 119 so as to protrude to the outside of the inclined portion 119, the valve body is in a direction orthogonal to the transfer path of the short ball as in the prior art. Compared to close and close the valve while advancing back and forth, the shot ball is between the valve body 120 and the valve seat 118, that is, between the valve body 120 and the inclined portion 119 of the valve seat 118. It is possible to significantly reduce the shot ball, even if pinched in the valve body 120 and the O-ring 140 is made of an elastic material to close the valve correctly.

According to the present invention as described above, since the short ball supply valve is coupled to the inlet side of the injector, there is an advantage that the short ball to the injector can be quickly supplied or quickly shut off, the valve body and the valve seat of the elastic material The O-ring coupled to the inclined portion has the advantage of closing the valve correctly.

In the above, the features of the present invention have been illustrated and described with reference to preferred embodiments, but the present invention is not limited to the above-described embodiments, and the present invention belongs to the present invention without departing from the object, configuration, and effect of the present invention. Various modifications may be made by those skilled in the art.

Claims (4)

A main body provided with a polishing chamber therein, an injector fixed to a circumferential wall of the main body to inject a short ball into the polishing chamber, and a short ball supply passage provided at one side of the main body to supply the short ball to the injector; Both ends are respectively connected to the inlet of the short ball supply container and the injector so that the short ball of the short ball supply container is guided to the injector, and the short ball of the short ball supply container is supplied to or supplied to the injector. In the shot blasting machine composed of a supply valve for blocking The supply valve 100 is integrally coupled to the inlet 12 of the injection device 10, The supply valve 100 has a flow passage 114 that is open at both ends therein, and a valve body 110 having a valve seat 118 inclined at a central portion of the flow passage 114 and the valve seat 118. Short blasting characterized in that it is composed of a valve body 120 that opens and closes the flow path 114 while being in close contact with or spaced apart from each other, and a cylinder 130 fixed to the valve body 110 to operate the valve body 120. Short Ball Supply Valves. According to claim 1, One end portion of the inner side of the valve seat 118 is provided with a tapered inclined portion 119 so as to extend the diameter toward the end is provided in close contact with the valve body 120 to the inclined portion 119 The shot ball supply valve for a shot blasting machine, characterized in that the inclined portion 119 is fixed to the O-ring 140 of a flexible material so that one side circumference protrudes to the outside. 3. The shot blasting machine of claim 2, wherein the valve body 120 is made of an elastic material and has one side circumference formed in a curved hemispherical shape, and the curved portion 122 is in close contact with the inclined portion 119. Ball supply valve. According to claim 1, wherein the valve body 110 of the upper side of the valve seat 118, the screw hole 115 is formed through, and the screw hole 115 is bolt 117, characterized in that coupled to the bolt 117 Short Ball Supply Valves.

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