阅读说明：本技术 气动气缸系统及包括其的阻隔阀 (Pneumatic cylinder system and barrier valve comprising same ) 是由 慎敬顺 于 2020-03-06 设计创作，主要内容包括：本发明公开气动气缸系统及包括其的阻隔阀,上述气动气缸系统包括：气动外罩,形成有中空的内部空间；以及气动活塞,将上述内部空间分成第一空间和第二空间,通过向上述第一空间或第二空间供给的气压向上述第二空间或第一空间方向移动,位于上述气动活塞的移动方向的上述第一空间或第二空间预先被排气。(The invention discloses a pneumatic cylinder system and a barrier valve comprising the same, wherein the pneumatic cylinder system comprises: a pneumatic housing formed with a hollow interior space; and an air piston that divides the internal space into a first space and a second space, and moves in the direction of the second space or the first space by air pressure supplied to the first space or the second space, whereby the first space or the second space in the moving direction of the air piston is exhausted in advance.)

1. A pneumatic cylinder system, characterized in that,

the method comprises the following steps:

a pneumatic housing formed with a hollow interior space; and

an air piston for dividing the internal space into a first space and a second space and moving the air piston toward the second space or the first space by air pressure supplied to the first space or the second space,

the first space or the second space located in the moving direction of the pneumatic piston is exhausted in advance.

2. The pneumatic cylinder system according to claim 1, further comprising a control module for pre-venting the first space or the second space.

3. The pneumatic cylinder system of claim 2,

the pneumatic housing is formed with a first main hole penetrating the first space and a second main hole penetrating the second space,

the pneumatic piston includes a piston body dividing an inner space of the pneumatic housing into the first space and the second space,

the control module includes a first main pipe, a first main valve, a second main pipe, and a second main valve, the first main valve being connected to the first main hole, the first main valve being connected to the first main pipe, the second main pipe being connected to the second main hole, the second main valve being connected to the second main pipe,

the air conditioner further includes a first discharge pipe connected to the first space to discharge air from the first space, a first discharge valve connected to the first discharge pipe, a second discharge pipe connected to the second space to discharge air from the second space, and a second discharge valve connected to the second discharge pipe.

4. A pneumatic cylinder system according to claim 3,

the first discharge pipe is connected to the first main pipe between the first main hole and the first main valve,

the second discharge pipe is connected to a second main pipe between the second main hole and a second main valve.

5. A pneumatic cylinder system according to claim 3,

the pneumatic cylinder includes a first discharge hole penetrating the first space or a second discharge hole penetrating the second space,

the first discharge piping is connected to the first discharge hole,

the second discharge pipe is connected to the second discharge hole.

6. The pneumatic cylinder system according to claim 5,

at least 2 first discharge holes or second discharge holes are formed,

the first discharge hole or the second discharge hole is formed at intervals along the circumferential surface of the pneumatic housing.

7. The pneumatic cylinder system according to claim 5,

the first discharge pipe is connected to the first main pipe between the first main hole and the first main valve,

the second discharge pipe is connected to a second main pipe between the second main hole and a second main valve.

8. A pneumatic cylinder system, characterized in that,

the method comprises the following steps:

a pneumatic housing formed with a hollow interior space;

an air piston which divides the internal space into a first space and a second space and moves in a direction of the second space or the first space by an air pressure supplied to the first space or the second space; and

a control module for controlling air supply and exhaust to the first space or the second space,

at least 2 exhaust passages for discharging air in the first space or the second space are formed.

9. The pneumatic cylinder system according to claim 8,

the number of the exhaust passages is larger than the number of the supply passages for supplying air to the first space or the second space,

the entire cross-sectional area of the exhaust passage is larger than the entire cross-sectional area of the supply passage.

10. The pneumatic cylinder system according to claim 8,

the control module includes a first main pipe connected to the first space, at least one first discharge pipe connected to the first space, and a second main pipe connected to the second space,

when air is supplied to the first space, the control module uses the first main pipe as a supply passage,

when the air in the first space is discharged, the first main pipe and the first discharge pipe are opened at the same time to serve as a discharge passage.

11. A barrier valve is characterized in that the barrier valve is provided with a valve body,

the method comprises the following steps:

a valve body portion in which a fluid path is formed in a direction in which a fluid flows;

a transfer body moving pneumatic cylinder connected to a shield plate for temporarily shielding the fluid path, for moving the transfer body; and

a powder inflow prevention cylinder for shielding a movement path of the transfer body in the fluid path and opening the movement path when the transfer body rotates,

the transfer body moving pneumatic cylinder or the powder inflow prevention cylinder is formed of the pneumatic cylinder system according to any one of claims 1 to 10.

12. The isolation valve of claim 11, wherein the displacement of the displacement body moving pneumatic cylinder is faster when the fluid path is isolated.

13. The barrier valve of claim 11, wherein the powder inflow prevention cylinder moves faster when the moving path is opened.

Technical Field

The invention relates to a pneumatic cylinder system and a barrier valve comprising the same.

Background

A pneumatic cylinder is a device that performs a specific action by air pressure. The pneumatic cylinder is controlled by a plurality of valves, and can perform vertical operation by the supplied air pressure. The pneumatic cylinder may include a pneumatic housing and a pneumatic piston mounted inside the pneumatic housing. The pneumatic piston separates the interior of the pneumatic housing into 2 independent spaces, and is coupled to the pneumatic housing so as to be movable inside the pneumatic housing. In the pneumatic cylinder, when air flows into one side space of the pneumatic housing, the pneumatic piston can move in the other side direction to perform a specific operation. In contrast, in the pneumatic cylinder, when air flows into the other space of the pneumatic housing, the pneumatic piston can move in one direction and perform a specific operation. For example, the pneumatic cylinder may move a particular device or structural component associated with the pneumatic piston.

On the other hand, in the above pneumatic cylinder, when the pneumatic piston moves in the one direction and then moves in the other direction again, the pneumatic piston may be affected by the air pressure existing in the other space in the process of rapidly moving in the other direction. That is, in the pneumatic cylinder, in order to increase the operating speed of the pneumatic piston moving in the direction of the other side, it is necessary to minimize the impedance due to the air existing in the space on the other side of the pneumatic housing.

Further, as the use functions of a plurality of pneumatic valves have been expanded, it has been necessary to add a back pressure blocking function, which is a function of rapidly blocking a reverse flow by increasing a blocking speed, to a conventional blocking function.

Disclosure of Invention

Technical problem

An object of the present invention is to provide a pneumatic cylinder system in which the moving speed of an air piston is increased, and a barrier valve including the same.

Technical scheme

The pneumatic cylinder system of the present invention is characterized by comprising: a pneumatic housing formed with a hollow interior space; and an air piston which divides the internal space into a first space and a second space, moves in the direction of the second space or the first space by air pressure supplied to the first space or the second space, and exhausts the first space or the second space in advance in the moving direction of the air piston.

Further, a pneumatic cylinder system according to the present invention includes: a pneumatic housing formed with a hollow interior space; an air piston which divides the internal space into a first space and a second space and moves in a direction of the second space or the first space by an air pressure supplied to the first space or the second space; and a control module for controlling air supply and exhaust to the first space or the second space, wherein at least 2 exhaust passages for exhausting the air of the first space or the second space are formed.

The barrier valve of the present invention is characterized by comprising: a valve body portion in which a fluid path is formed in a direction in which a fluid flows; a transfer body moving pneumatic cylinder connected to a shutter for temporarily blocking the fluid path, for moving the transfer body; and a powder inflow prevention cylinder that covers a movement path along which the transfer body moves among the fluid paths, and opens the movement path when the transfer body rotates, the transfer body movement pneumatic cylinder or the powder inflow prevention cylinder being formed of the pneumatic cylinder system.

ADVANTAGEOUS EFFECTS OF INVENTION

The pneumatic cylinder system of the present invention has an effect of previously removing the air pressure of the inner space of the pneumatic housing located in the moving direction of the pneumatic piston, thereby increasing the moving speed of the pneumatic piston.

Further, the pneumatic cylinder system according to the present invention has an effect of increasing the number of exhaust passages for discharging air in the internal space of the pneumatic housing located in the moving direction of the pneumatic piston, or increasing the moving speed of the pneumatic piston by increasing the entire sectional area of the exhaust passages.

In addition, the pneumatic cylinder system according to the present invention has an effect of reducing the initial driving pressure of the pneumatic piston by removing the air pressure in the internal space of the pneumatic housing located in the moving direction of the pneumatic piston in advance.

Also, the barrier valve including the pneumatic cylinder system of the present invention has an effect in that the pneumatic piston of the pneumatic cylinder moves rapidly, and thus, the flow of fluid can be more rapidly blocked.

In addition, the barrier valve including the pneumatic cylinder system according to the present invention has an effect that the powder inflow prevention ring operated by the pneumatic piston of the pneumatic cylinder system is rapidly lowered when the back pressure generation signal is generated, and thus the transfer body and the shutter are rapidly rotated.

Further, the barrier valve including the pneumatic cylinder system according to the present invention has an effect that the transfer body and the shutter, which are operated by the pneumatic cylinder system, are rapidly rotated to shield the fluid passage when the back pressure generation signal is generated.

Drawings

FIG. 1a is a block diagram of a pneumatic cylinder system according to an embodiment of the present invention.

Fig. 1b is a block diagram of a pneumatic cylinder system according to another embodiment of the present invention.

Fig. 2a is a structural view of a pneumatic cylinder system according to another embodiment of the present invention.

Fig. 3a is a structural view of a pneumatic cylinder system according to another embodiment of the present invention.

Fig. 3b is a structural view of a pneumatic cylinder system according to another embodiment of the present invention.

Fig. 4 is a perspective view of a barrier valve of a pneumatic cylinder system to which an embodiment of the present invention is applied.

Figure 5 is an exploded perspective view of the barrier valve of figure 4.

Figure 6 is a vertical cross-sectional view of the barrier valve of figure 4.

Fig. 7a is a schematic configuration diagram of a pneumatic cylinder to which the barrier valve of fig. 4 is applied.

Fig. 7b is a schematic block diagram of another embodiment of a pneumatic cylinder suitable for use in the barrier valve of fig. 4.

Figure 8 is a vertical cross-sectional view showing the operation of the barrier valve of figure 4 in a normal state.

Fig. 9 is a vertical sectional view showing the operation in a back pressure generation state of the barrier valve of fig. 4.

Detailed Description

Hereinafter, a pneumatic cylinder system and a barrier valve including the same according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, a pneumatic cylinder system according to an embodiment of the present invention will be described.

FIG. 1a is a block diagram of a pneumatic cylinder system according to an embodiment of the present invention. Fig. 1b is a block diagram of a pneumatic cylinder system according to another embodiment of the present invention.

Referring to FIG. 1a, a pneumatic cylinder system according to an embodiment of the present invention may include a pneumatic cylinder 100 and a control module 200. In the following description, one direction is the x direction, and the other direction is the opposite direction to the x direction.

The pneumatic cylinder 100 may have various structures for linearly reciprocating or rotationally reciprocating the object by using air pressure. That is, the pneumatic cylinder 100 may linearly move the object from one side to the other side or may rotationally move the object at a predetermined angle. The pneumatic cylinder 100 may be a general single-acting cylinder or a double-acting cylinder. Hereinafter, the description will be mainly given of the case where the pneumatic cylinder 100 is a double cylinder.

The pneumatic cylinder 100 may include a pneumatic housing 110 and a pneumatic piston 120. The pneumatic cylinder 100 moves the pneumatic piston 120 from the first position X1 to the second position X2, and moves it again from the second position X2 to the first position X1. The first position X1 may be a position where the air piston 120 moves in one direction inside the air casing 110, and the second position X2 may be a position where the air piston 120 moves in the other direction inside the air casing 110. When the pneumatic cylinder 100 moves the pneumatic piston 120 from the second position X2 to the first position X1, the air pressure in the internal space on the side of the pneumatic housing 110 is maintained at atmospheric pressure, and the moving speed of the pneumatic piston 120 can be increased. Also, the pneumatic cylinder 100 may reduce the initial driving pressure of the pneumatic piston 120.

The pneumatic cylinder 100 may increase the moving speed of the pneumatic piston 120 by previously discharging the air pressure of the inner space in the direction in which the pneumatic piston 120 relatively rapidly moves to the atmospheric pressure. For example, when the pneumatic piston 120 moves from the second position X2 to the first position X1, the moving speed of the pneumatic cylinder 100 may increase.

When the pneumatic cylinder 100 moves from the first position X1 to the second position X2, the corresponding structure will be located at the corresponding position on the other side in the case where the moving speed needs to be increased. Also, when the pneumatic cylinder 100 is moved to the first position X1 and the second position X2, all structures required may be formed at one side and the other side in case all moving speeds need to be increased.

The pneumatic housing 110 may have a cylindrical shape with a hollow interior. The pneumatic housing 110 may include a piston bore 111 and a first main bore 112 a. Also, the pneumatic housing 110 may further include a second main hole 112 b. In the pneumatic housing 110, the inner space may be divided into a first space 110a located at the first position X1 and a second space 110b located at the second position X2 by the pneumatic piston 120. The first space 110a located in the moving direction of the air piston 120 is exhausted in advance to maintain the internal pressure of the first space 110a at atmospheric pressure, so that the air piston 120 can rapidly move from the second position X2 to the first position X1.

The piston hole 111 is formed to penetrate from the inside to the outside at the center of the other side surface of the pneumatic housing 110. The piston hole 111 provides a path required for a part of the air piston 120 to reciprocate.

The first main hole 112a may penetrate the first space 110a of the pneumatic housing 110 from one outer circumferential surface of the pneumatic housing 110. The first main hole 112a provides a path for air required for the operation of the air piston 120 to flow into or out of the first space 110 a. Accordingly, the first main hole 112a may be formed in an appropriate size in consideration of the operating pressure and the operating speed of the pneumatic piston 120. When the pneumatic cylinder 100 moves from the second position X2 to the first position X1, the above-described first main hole 112a may be formed in the case where the speed needs to be increased.

The second main hole 112b may be formed to penetrate into the second space 110b of the pneumatic cover 110 outside the other side of the outer circumferential surface of the pneumatic cover 110. The second main hole 112b provides a path for air required for the operation of the air piston 120 to flow into or out of the second space 110 b. Accordingly, the second main hole 112b may be formed in an appropriate size in consideration of the operating pressure and the operating speed of the pneumatic piston 120. When the pneumatic cylinder 100 moves from the first position X1 to the second position X2, the second main hole 112b may be formed in a case where an increase in speed is required.

The pneumatic piston 120 may include a piston body 121. The pneumatic piston 120 may include a piston support rod 122. In the pneumatic piston 120, the piston main body 121 and a part of the piston support rod 122 are mounted in the pneumatic housing 110 and move from side to side, so that the object coupled to the piston support rod can be transferred to and fro. On the other hand, as shown in fig. 7a and 7b, according to the structure, the pneumatic piston 120 may not include the piston support rod 122.

The piston body 121 may have a substantially circular plate shape and may be formed with an outer diameter corresponding to the inner diameter of the pneumatic housing 110. The piston body 121 is movable inside the pneumatic housing 110 such that the outer peripheral surface faces the inner peripheral surface of the pneumatic housing 110. The piston body 121 may divide an inner space of the pneumatic housing 110 into a first space 110a and a second space 110 b. The piston body 121 is provided at an outer circumferential surface thereof with a sealing unit such as an O-ring, and an inner circumferential surface of the pneumatic housing 110 is coupled to the O-ring in a fastening manner. Therefore, when the piston body 121 reciprocates inside the pneumatic housing 110, the air flowing into the first space 110a or the second space 110b does not flow out into the second space 110b or the first space 110 a.

One side of the piston support rod 122 is coupled to the piston body 121, and the other side thereof extends to the outside through the piston hole 111 of the pneumatic housing 110.

The control module 200 may previously discharge the first space 110a or the second space 110 b. Also, the control module 200 may previously exhaust both the first space 110a and the second space 110 b. For example, the control module 200 supplies air to the first space 110a of the air-powered housing 110 to move the air-powered piston 120 to the other side, and then communicates the first space 110a with the atmosphere to bring it into an atmospheric pressure state. The pneumatic piston 120 may be located at a position to move inside the pneumatic cylinder 100 by a frictional force based on an O-ring. Thereafter, the control module 200 may supply air to the second space 110b of the pneumatic housing 110 to move the pneumatic piston 120 to one side. In this case, the first space 110a can communicate with the atmosphere to maintain the atmospheric pressure state, and therefore, the air in the first space 110a can be rapidly discharged to the atmosphere. Therefore, the pneumatic piston 120 can be moved to one side more rapidly. Contrary to the above, the control module 200 may be similarly applied to the case of supplying air to the second space 110 b.

As mentioned above, the control module 200 may take on a variety of configurations for operating the pneumatic piston 120. For example, the control module 200 may include a first main piping 210a, a first main valve 220a, a first discharge piping 230a, a first discharge valve 240a, a second main piping 210b, and a second main valve 220 b. The first discharge pipe 230a and the first discharge valve 240a may be formed when the pneumatic cylinder 100 needs to be rapidly moved from the second position X2 to the first position X1. The control module 200 may further include a second discharge pipe 230b and a second discharge valve 240 b. The second discharge piping 230b and the second discharge valve 240b may be formed in a case where the pneumatic cylinder 100 needs to be rapidly moved from the first position X1 to the second position X2.

In the above-described control module 200, the number of the exhaust passages discharging the air of the first space 110a may be formed in plurality. In the control module 200 described above, the number of exhaust passages discharging air of the first space 110a may be greater than the number of supply passages supplying air to the first space 110 a. In this case, the entire cross-sectional area of the exhaust passage may be larger than the entire cross-sectional area of the supply passage. For example, the description will be made mainly on the case where the air piston 120 is rapidly moved to the first position X1. In the above-described control module 200, when the air of the first space 110a is discharged, both the first main pipe 210a connected to the first space 110a and the at least one first discharge pipe 230a are used as the exhaust passage. In contrast, in the control module 200, when air is supplied to the first space 110a, only the first main pipe 210a connected to the first space 110a is used as a supply passage. Therefore, the air in the first space 110a is discharged to the first discharge pipe 230a or the second discharge pipe 230b together with the first main pipe 210a, and the air piston 120 moves rapidly. In contrast to the above, the control module 200 is applied in the same manner in the case of supplying air to the second space 110 b.

The control module 200 may be modularized by one controller. The first main valve 220a, the first discharge valve 240a, the second main valve 220b, and the second discharge valve 240b, which constitute the above-described control module 200, may be disposed inside one housing. In this case, the first main valve 220a, the first discharge valve 240a, the second main valve 220b, and the second discharge valve 240b may be coupled to the first main pipe 210a, the first discharge pipe 230a, the second main pipe 210b, and the second discharge valve 240b, respectively, inside the housing.

The first main valve 220a and the second main valve 220b may be formed as a single body. For example, the first main valve 220a and the second main valve 220b may be one solenoid valve. Also, the first main valve 220a and the first discharge valve 240a may be formed in one body. For example, the first main valve 220a and the first discharge valve 240a may be one solenoid valve. Also, the second main valve 220b and the second discharge valve 240b may be formed in one body. For example, the second main valve 220b and the second discharge valve 240b may be one solenoid valve. The first main valve 220a, the first discharge valve 240a, the second main valve 220b, and the second discharge valve 240b may be integrally formed. For example, the first main valve 220a, the first discharge valve 240a, the second main valve 220b, and the second discharge valve 240b may be one solenoid valve.

On the other hand, referring to FIG. 1b, in another embodiment of the pneumatic cylinder system of the present invention, the control module 200 may include a main valve 220. For example, the main valve 220 may be formed of one main valve functioning as the first main valve 220a and the second main valve 220b of fig. 1 a. The first main pipe 210a and the second main pipe 210b may be coupled to a main valve 220. The main valve 220 may be connected to pipes 221, 222, and 223 for supplying or discharging air necessary for operation. Of these, 2 pipes 221 and 223 are used to supply or discharge air to or from the first main pipe 210a or the second main pipe 210b, and the remaining one pipe 222 additionally discharges air from the first space 110a or the second space 110b inside the pneumatic cover 110 together with the first discharge pipe 230a or the second discharge pipe 230 b.

One end of the first main pipe 210a is connected to the first main hole 112a of the pneumatic housing 110 and communicates with the first space 110 a. The first main pipe 210a may be formed with a predetermined diameter so as to supply an air flow rate for moving the air piston 120 at a desired speed.

The first main valve 220a may supply air to the first space 110a, and may open the first main pipe 210a to discharge air from the first space 110 a. For example, the first main valve 220a may be a double-acting solenoid valve. The first main valve 220a is connected to the other end of the first main pipe 210 a. The first main valve 220a may form pipes 221a and 222a necessary for supplying air to the first main pipe 210a or discharging air from the first main pipe 210a, depending on the connection relationship with the first main pipe 210 a.

One end of the first discharge pipe 230a is connected to the first main pipe 210a, and the other end is exposed to the atmosphere. The first discharge piping 230a may be connected to the first main hole 112a and the first main valve 220a of the pneumatic housing 110. The number of the first discharge pipes 230a may be 1 or at least 2, and may be plural depending on the volume of the first space 110a and the diameter of the pneumatic housing 110.

The first discharge valve 240a may be coupled to the middle of the first discharge pipe 230 a. The first discharge valve 240a opens and closes the first discharge pipe 230a to allow the first space 110a to communicate with the atmosphere.

One end of the second main pipe 210b is connected to the second main hole 112b of the pneumatic housing 110 and communicates with the second space 110 b. The second main pipe 210b may be formed to have a predetermined diameter so as to supply an air flow rate for moving the air piston 120 at a desired speed.

The second main valve 220b may supply air to the second space 110b, and may open and close the second main pipe 210b to discharge the air from the second space 110 b. For example, the second main valve 220b may be a double-acting solenoid valve. The second main valve 220b is connected to the other end of the second main pipe 210 b. The second main valve 220b may form pipes 221b and 222b necessary for supplying air to the second main pipe 210b or discharging air from the second main pipe 210b, depending on the connection relationship with the second main pipe 210 b.

One end of the second discharge pipe 230b is connected to the second main pipe 210b, and the other end is exposed to the atmosphere. The second discharge piping 230b may be connected between the pneumatic housing 110 and the second main valve 220 b. The number of the second discharge pipes 230b may be at least 1, and may be plural depending on the volume of the second space 110b and the diameter of the pneumatic housing 110.

The second discharge valve 240b may be coupled to the middle of the second discharge pipe 230 b. The second discharge valve 240b opens and closes the second discharge pipe 230b to allow the second space 110b to communicate with the atmosphere.

Next, an operation method of the pneumatic cylinder system according to an embodiment of the present invention will be described.

The description will be made centering on the process in which the air piston 120 moves from the first position X1 in the one-side direction to the second position X2 in the other-side direction and returns to the first position X1 again. The following description will be made mainly on the case where the air piston 120 does not need to move quickly when moving from the first position X1 to the second position X2, and moves quickly when moving to the first position X1 again.

First, the first main valve 220a operates to supply air to the first space 110a through the first main pipe 210 a. The first discharge valve 240a maintains a closed state. The pneumatic piston 120 is moved from the first position X1 to the second position X2 of the pneumatic housing 110 by the air pressure supplied to the first space 110 a. The second main valve 220b operates to discharge the air in the second space 110b to the outside through the second main pipe 210 b. Preferably, the second discharge valve 240b maintains a closed state.

Then, when the air piston 120 moves to the second position X2, the operation of the first main valve 220a is stopped. In some cases, after the movement of the air piston 120 is stopped, if a time period elapses for the movement of the air piston 120 to stabilize, the first discharge valve 240a is opened, and the first space 110a is brought into an atmospheric pressure state.

When the air piston 120 returns to the first position X1, the second main valve 220b operates to supply air to the second space 110b through the second main pipe 210 b. The first discharge valve 240a is maintained in an open state, and the second discharge valve 240b is maintained in a closed state. The pneumatic piston 120 is moved from the second position X2 to the first position X1 by the air pressure supplied to the second space 110 b. In this case, the first space 110a is in an atmospheric pressure state, and the air in the first space 110a is discharged to the atmosphere in advance through the first discharge valve 240a, so that the air piston 120 can be rapidly moved. Normally, when the air piston 120 is located at the second position X2, the first main valve 220a maintains the first main pipe 210a in a closed state. Since the first main valve 220a is closed in a state where air is supplied through the first main pipe 210a, a pressure state greater than atmospheric pressure can be maintained in the first space 110 a. Therefore, in order to move the air piston 120 to the first position X1, when the first main valve 220a is opened, it is necessary to take a time for the air supplied to the first space 110a to be discharged to the outside through the first main pipe 210a and the first main valve 220a, and there is a possibility that the movement of the air piston 120 is delayed.

Next, a pneumatic cylinder system according to another embodiment of the present invention will be described.

Fig. 2a is a structural view of a pneumatic cylinder system according to another embodiment of the present invention.

Referring to fig. 2a, in a pneumatic cylinder system according to another embodiment of the present invention, a first discharge hole 113a or a second discharge hole 113b may be formed in the pneumatic housing 110, and a first discharge pipe 230a or a second discharge pipe 230b may be directly combined with the first discharge hole 113a or the second discharge hole 113 b. The first discharge hole 113a may be formed to penetrate the outer circumferential surface of the pneumatic housing 110 into the first space 110a so as to be connected to the first space 110a of the pneumatic housing 110. The second discharge hole 113b may be formed to penetrate the outer circumferential surface of the pneumatic housing 110 into the second space 110b so as to be connected to the second space 110b of the pneumatic housing 110. Wherein the first and second discharge holes 113a and 113b may be formed at positions connected to the first and second spaces 110a and 110b, respectively, having variable sizes. For example, the first discharge hole 113a may be formed at one side of the outer circumferential surface of the pneumatic housing 110 or at one side of the pneumatic housing 110. Also, the second discharge hole 113b may be formed at the other side end or the other side surface of the outer circumferential surface of the pneumatic housing 110.

The first discharge valve 240a or the second discharge valve 240b may be coupled to the first discharge pipe 230a or the second discharge pipe 230 b. Therefore, the first discharge piping 230a and the second discharge piping 230b are not coupled to the first main piping 210a and the second main piping 210 b.

In the above pneumatic cylinder system, the first discharge hole 113a and the second discharge hole 113b may be respectively formed in plural numbers and may be spaced apart in the circumferential direction of the pneumatic housing 110. Also, at least 2 of the first and second discharge pipes 230a and 230b may be coupled to the first and second discharge holes 113a and 113b, respectively.

The diameters of the first and second discharge holes 113a and 113b may be greater than or equal to the diameters of the first and second main holes 112a and 112 b. In the case where the diameters of the first and second discharge holes 113a and 113b are large as described above, the air in the first and second spaces 110a and 110b may be more rapidly discharged to the outside.

When the air piston 120 moves from the second position X2 to the first position X1, the air cylinder system may rapidly discharge the air of the first space 110a to the outside through the first main pipe 210a and the first discharge pipe 230 a. Accordingly, the pneumatic piston 120 may move more rapidly toward the first position X1. That is, when the air piston 120 moves from the second position X2 to the first position X1, the first discharge valve 240a is opened, and the first space 110a maintains the atmospheric pressure state. Accordingly, the pneumatic piston 120 may move more rapidly toward the first position X1.

On the other hand, in a pneumatic cylinder system according to another embodiment of the present invention, the control module 200 may include a main valve 220. For example, the main valve 220 may be formed of one main valve functioning as the first main valve 220a and the second main valve 220b of fig. 2 a. The first main pipe 210a and the second main pipe 210b may be coupled to a main valve 220. The main valve 220 may be connected to pipes 221, 222, and 223 for supplying or discharging air necessary for operation. Of these, 2 pipes 221 and 223 are used to supply or discharge air to or from the first main pipe 210a or the second main pipe 210b, and the remaining one pipe 222 additionally discharges air from the first space 110a or the second space 110b inside the pneumatic cover 110 together with the first discharge pipe 230a or the second discharge pipe 230 b.

Next, a pneumatic cylinder system according to another embodiment of the present invention will be described.

Fig. 3a is a structural view of a pneumatic cylinder system according to another embodiment of the present invention. Fig. 3b is a structural view of a pneumatic cylinder system according to another embodiment of the present invention.

Referring to fig. 3a, a pneumatic cylinder system according to another embodiment of the present invention may be a structure in which the pneumatic cylinder system of fig. 1a is combined with the pneumatic cylinder system of fig. 2 a. That is, in the above pneumatic cylinder system, the first discharge hole 113a or the second discharge hole 113b may be formed in the pneumatic cylinder 100, and the first discharge pipe 230a or the second discharge pipe 230b may be directly coupled to the first discharge hole 113a or the second discharge hole 113 b. In the above pneumatic cylinder system, the first discharge pipe 230a and the second discharge pipe 230b may be coupled to the first main pipe 210a and the second main pipe 210 b.

In the above pneumatic cylinder system, when the pneumatic piston 120 moves from the second position X2 to the first position X1, the air in the first space 110a can be discharged to the outside through the first discharge pipe 230a coupled to the first discharge port 113a and the first discharge pipe 230a coupled to the first main pipe 210 a. Accordingly, the pneumatic piston 120 may move more rapidly toward the first position X1.

On the other hand, referring to fig. 3b, in a pneumatic cylinder system according to another embodiment of the present invention, the control module 200 may include a main valve 220. For example, the main valve 220 may be formed of one main valve functioning as the first main valve 220a and the second main valve 220b of fig. 3 a. The first main pipe 210a and the second main pipe 210b may be coupled to a main valve 220. The main valve 220 may be connected to pipes 221, 222, and 223 for supplying or discharging air necessary for operation. Of these, 2 pipes 221 and 223 are used to supply or discharge air to or from the first main pipe 210a or the second main pipe 210b, and the remaining one pipe 222 additionally discharges air from the first space 110a or the second space 110b inside the pneumatic cover 110 together with the first discharge pipe 230a or the second discharge pipe 230 b.

Next, a barrier valve of a pneumatic cylinder system to which an embodiment of the present invention is applied will be described.

Fig. 4 is a perspective view of a barrier valve of a pneumatic cylinder system to which an embodiment of the present invention is applied. Figure 5 is an exploded perspective view of the barrier valve of figure 4. Figure 6 is a vertical cross-sectional view of the barrier valve of figure 4. Fig. 7a is a schematic configuration diagram of a pneumatic cylinder to which the barrier valve of fig. 4 is applied. Fig. 7b is a schematic block diagram of another embodiment of a pneumatic cylinder suitable for use in the barrier valve of fig. 4. Figure 8 is a vertical cross-sectional view showing the operation of the barrier valve of figure 4 in a normal state. Fig. 9 is a vertical sectional view showing the operation in a back pressure generation state of the barrier valve of fig. 4.

Hereinafter, a specific example of the blocking valve according to an embodiment of the present invention will be described centering on the sliding back pressure blocking valve of fig. 4 to 9. However, the blocking valve of the present invention is not limited to the sliding back pressure blocking valve of fig. 4 to 9, but may be a blocking valve of various structures that block the flow of fluid of gas or air flowing in using the pneumatic cylinder system of fig. 1a to 3 b.

Referring to fig. 4 to 9, a barrier valve of a pneumatic cylinder system to which an embodiment of the present invention is applied may include a valve main body 10, a transfer body moving pneumatic cylinder 20, and a powder inflow prevention cylinder 30.

Although there are differences in the specific configurations of the transfer body moving pneumatic cylinder 20 and the powder inflow prevention cylinder 30, the operation principle of the pneumatic cylinder system according to an embodiment of the present invention is applied. Therefore, even though the transfer body moving pneumatic cylinder 20 and the powder inflow prevention cylinder 30 have different specific configurations, the same reference numerals as those in fig. 1a are given to the configuration corresponding to the pneumatic cylinder system of fig. 1a to assist understanding.

The valve body 10 may have a cylindrical or polygonal sealed structure. The valve main body 10 may include a fluid inlet 11, an inlet cover 12, a coupling member 13, a side wall 14, an outlet cover 15, and a fluid outlet 16. Referring to fig. 6, the valve body 10 has a fluid path 10a formed therein for allowing a fluid to flow. The valve body 10 accommodates the transfer body moving pneumatic cylinder 20 and the powder inflow prevention cylinder 30 therein. Referring to fig. 6, the valve body 10 may include a moving path 10b formed in a direction perpendicular to the fluid path, and closed when the fluid flows and opened when the transfer body 18a rotates.

The fluid inlet portion 11 may have a predetermined length along the direction in which the fluid flows. The inflow portion cover 12 may be formed integrally with the fluid inflow portion 11, have a predetermined diameter, and may cover the fluid inflow portion 11. The fluid discharge portion 16 may have a predetermined length along the direction in which the fluid is discharged. The outlet cover 15 may be formed integrally with the fluid outlet 16, have a predetermined diameter, and cover the fluid outlet 16. The side wall portion 14 may form a fluid passage space between the inlet cover 12 and the outlet cover 15. The side wall portion 14 may have a cylindrical or polygonal sealed structure.

The upper surfaces of the inlet cover 12 and the side wall 14, which are formed integrally with the fluid inlet 11, are kept airtight by a plurality of coupling members 13 such as bolts. The lower surfaces of the outlet cover 15 and the side wall 14, which are formed integrally with the fluid outlet 16, may be kept airtight by a plurality of coupling members 13 such as bolts. The valve main body portion 10 of the above-described barrier valve has a structure sealed by such a structure.

The transfer body moving air cylinder 20 may be disposed above the valve main body 10. The transfer body moving pneumatic cylinder 20 may be located outside the fluid path, and when the back pressure is generated, the transfer body 18a on which the shutter 18b is placed is rotated and transferred to the fluid path. The transfer body moving pneumatic cylinder 20 may move the transfer body 18a, and the transfer shutter 18b may shield the fluid path. The transfer body 18a may be transferred to the fluid path through a transfer path.

The transfer body moving pneumatic cylinder 20 includes a pneumatic housing 110 and a pneumatic piston 120. As shown in fig. 7a, in the pneumatic housing 110, the inner space is divided into a first space 110a and a second space 110b by the pneumatic piston 120. The form of the pneumatic housing 110 is different from the form of the pneumatic housing 110 of the embodiment of FIG. 1 a. The pneumatic housing 110 has a substantially rectangular shape, and a U-shaped air flow path is formed therein. The pneumatic housing 110 may receive the rotary shaft 130 therein. The shape of the pneumatic piston 120 described above is different from the shape of the pneumatic piston 120 of the embodiment of fig. 1 a. The pneumatic piston 120 may be moved to the other side by air supplied to the first space 110a and the second space 110b of the pneumatic housing 110, respectively. The air piston 120 may rotate the rotation shaft 130 coupled to the gear within a predetermined angle while moving to one side and the other side.

On the other hand, referring to fig. 7b, the rotation shafts 130 may be formed in 1 number in consideration of a rotational force required to rotate the rotation shafts 130.

The transfer body moving pneumatic cylinder 20 is operated by controlling the inflow of air by the control module 200 connected to the first space 110a and the second space 110 b. The control module 200 may be the same as the control module 200 of one embodiment of FIG. 1 a. Therefore, the first main pipe 210a and the second main pipe 210b of the control module 200 are connected to the first space 110a and the second space 110b of the pneumatic housing 110, respectively. The control module 200 may be the control module 200 shown in fig. 2a and 3 a. In this case, the first discharge pipe 230a and the first discharge valve 240a may be additionally formed in the pneumatic housing 110.

When air is supplied to the first space 110a through the first main pipe 210a, the air piston 120 moves to one side and rotates the rotary shaft 130 at a predetermined angle. When air is supplied to the second space 110b through the second main pipe 210b, the air piston 120 can move to the other side and rotate the rotary shaft 130 in the opposite direction by a predetermined angle.

The rotary shaft 130 may be coupled to the transfer body 18 a. The transfer body 18a may be placed on the shutter 18 b. Therefore, when the rotation shaft 130 is rotated, the transfer body 18a and the shutter 18b placed on the transfer body 18a can be rotated together. The transfer body 18a and the shutter 18b may be rotated by the rotation shaft 130 to block a flow path of the process gas formed by the side wall 14 and the pneumatic housing 110.

The powder inflow prevention cylinder 30 may be disposed on a side surface of the valve main body 10. The powder inflow prevention cylinder 30 includes a pneumatic housing 110 and a pneumatic piston 120. As shown in fig. 8, the pneumatic housing 110 is different from the pneumatic housing 110 of the embodiment of fig. 1 a. The pneumatic housing 110 forms a path through which the process gas passes through the shut-off valve together with a function of simply housing and moving the pneumatic piston 120. The shape of the pneumatic piston 120 described above is different from the pneumatic piston 120 of the embodiment of fig. 1 a. The pneumatic piston 120 may be ascended or descended by air supplied to the first space 110a and the second space 110b of the pneumatic housing 110, respectively. The powder inflow prevention cylinder 30 is operated by controlling the inflow of air by the control module 200 connected to the first and second spaces 110a and 110 b. The control module 200 may be the same as the control module 200 of one embodiment of FIG. 1 a. Therefore, the first main pipe 210a and the second main pipe 210b of the control module 200 are connected to the first space 110a and the second space 110b of the pneumatic housing 110, respectively. The control module 200 may be the control module 200 shown in fig. 2a and 3 a. In this case, the first discharge pipe 230a and the first discharge valve 240a may be additionally formed in the pneumatic housing 110.

When air is supplied to the first space 110a through the first main pipe 210a, the air piston 120 is raised upward and shields an open portion formed in the circumferential direction inside the side wall portion 14. The shut-off valve operates normally so that the process gas flows from the upper portion to the lower portion. The pneumatic cylinder 100 shields the open portion of the side wall portion 14, so that the process gas does not flow out through the open portion.

While the embodiments of the technical idea of the present invention have been described above with reference to the drawings, those skilled in the art to which the present invention pertains can implement the present invention in other specific forms without changing the technical idea or essential features of the present invention. The embodiments described above are illustrative embodiments in all respects and are not intended to limit the present invention.

Industrial applicability

The pneumatic cylinder system of the present invention has an effect of previously removing the air pressure of the inner space of the pneumatic housing located in the moving direction of the pneumatic piston, thereby increasing the moving speed of the pneumatic piston.

Also, the barrier valve including the pneumatic cylinder system of the present invention has an effect in that the pneumatic piston of the pneumatic cylinder moves rapidly, and thus, the flow of fluid can be more rapidly blocked.