JP2589249Y2 - Manifold solenoid valve - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manifold solenoid valve in which a plurality of solenoid valves each operated by a solenoid are mounted on a manifold in which an air supply port, an output port and an exhaust port are formed.

[0002]

2. Description of the Related Art When a plurality of solenoid valves are used, a manifold solenoid valve in which these valves are mounted in one place is described in, for example, "New Edition Hydraulic Pneumatic Handbook (Ohm Co., Ltd., February 1989). (Issued on March 25)), page 479.

In such a manifold solenoid valve, a 5-port solenoid valve and a 3-port solenoid valve, or a 5-port solenoid valve and a 2-port solenoid valve are mixedly mounted, and different fluid pressures and pressures are set independently of other solenoid valves. Sometimes it is used under different types of fluids.

[0004] Originally, a manifold solenoid valve has a structure in which fluid is collectively supplied to a solenoid valve from an air supply port formed in the manifold. Therefore, when some of the solenoid valves are used at different fluid pressures or the like, for example, as shown in FIG. An air supply port 62, an output port 64, and an exhaust port 63 are formed at 66, and a system for supplying and discharging a predetermined fluid to and from these ports is adopted.

[0005]

However, such a method requires not only the trouble of mounting the spacer 66 between the manifold 61 and the solenoid valve 65 but also the problem of the spacer 66.
The electromagnetic valve 65 protrudes upward due to the mounting of, which impairs the space efficiency. Further, the necessity of a new component called the spacer 66 means an increase in the number of components, which is not preferable.

An object of the present invention is to provide a technique relating to a manifold solenoid valve which can be used under different fluid pressures and different kinds of fluids without requiring a spacer.

The above and other objects and novel features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

[0008]

SUMMARY OF THE INVENTION Among the inventions disclosed in the present application, typical ones will be outlined as follows.

That is, the manifold solenoid valve of the present invention has a three-port solenoid valve mounted on a manifold for a five-port solenoid valve. That is, this three-port solenoid valve has an air supply opening at one of the output ports of the manifold, an output opening at the other output port, and one of two exhaust ports formed at the manifold. The exhaust port communicates with the exhaust port, and the air supply port and the other exhaust port are closed by a valve block of a three-port solenoid valve. A fluid pressure supply device is connected to the output port communicating with the air supply opening of the three-port solenoid valve, and a fluid pressure operating device is connected to the output port communicating with the output opening. .

[0010] The manifold solenoid valve of the present invention has a 5
A two-port solenoid valve is mounted on a manifold for a port solenoid valve. That is, in this two-port solenoid valve, an air supply opening is connected to one of the output ports of the manifold, and an output opening is connected to the other output port, and the air supply port is formed in the manifold. The two exhaust ports are closed by the valve block of the solenoid valve. A fluid pressure supply device is connected to an output port communicating with the air supply opening of the two-port solenoid valve, and a fluid pressure operating device is connected to the output port communicating with the output opening. .

[0011]

According to the manifold solenoid valve in which the three-port solenoid valve is mounted on the manifold for the five-port solenoid valve, fluid is supplied from one output port of the manifold to the air supply opening of the three-port solenoid valve. The fluid pressure operating device is operated from the output opening through the other output port, and then is exhausted from one exhaust port through the exhaust opening.

According to the manifold solenoid valve in which the two-port solenoid valve is mounted on the manifold for the five-port solenoid valve, fluid is supplied from one output port of the manifold to the air supply opening of the two-port solenoid valve. , Which activates the hydraulically operated device from the output opening through the other output port.

Therefore, a 3-port solenoid valve or a 2-port solenoid valve is mounted on the manifold for the 5-port solenoid valve without any intervening spacers, and is mounted independently of the other solenoid valves at a different fluid pressure. Or different types of fluids.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in more detail with reference to the drawings.

FIG. 1 is a perspective view showing a manifold solenoid valve according to an embodiment of the present invention, and FIGS. 2 and 3 are sectional views showing the manifold solenoid valve.

In the structure of the manifold 1, an air supply port 2 is formed at the center of the manifold 1 so that a 5-port solenoid valve can be mounted. A first exhaust port 3a and a second exhaust port 3b are formed. Further, a first output port 4a and a second output port 4b that are connected to a fluid pressure operating device including a negative pressure supply device are formed so as to open to the side surface.

On the other hand, the 3 mounted on the manifold 1
A valve block 6 of the port solenoid valve 5 has an air supply opening 9 to which fluid pressure from a fluid pressure supply device 8 is supplied along the axial direction of a spool shaft 7, a single-acting cylinder (fluid pressure actuation device). An output opening 11 for supplying fluid pressure to 10) and an exhaust opening 12 for discharging fluid pressure are formed.

The three-port solenoid valve 5 has an air supply opening 9 at the first output port 4a and an output opening 11 at the second output port 4a.
An exhaust port 12 is mounted on the manifold 1 in communication with the output port 4b and the first exhaust port 3a. The first output port 4 a of the manifold 1 is connected to the fluid pressure supply device 8, and the second output port 4 b is connected to the single-acting cylinder 10. The supply port 2 and the second exhaust port 3b of the manifold 1 are closed by the valve block 6 of the three-port solenoid valve 5.

The spool shaft 7 of the three-port solenoid valve 5 is provided with seal members 13a to 13d at predetermined intervals, and a spool groove 7a is provided between the seal members 13a to 13d.
Are formed, and a spool portion is formed by the seal members 13 a to 13 d and the spool shaft 7.

When the spool shaft 7 is in the first position as shown in FIG. 2, the air supply opening 9 is closed by the sealing members 13c and 13d of the spool shaft 7, and the output opening 1 is closed.
1 and the exhaust opening 12 are communicated by the spool shaft 7. When the spool shaft 7 is in the second position as shown in FIG. 3, the exhaust opening 12 is closed by the sealing members 13a and 13b of the spool shaft 7, and the air supply opening 9 and the output opening 9 are closed. The opening 11 is communicated with the spool shaft 7.

Next, the structure of the solenoid portion 14 for operating the spool shaft 7 between the first position shown in FIG. 2 and the second position shown in FIG. 3 will be described with reference to FIG.

The bobbin 15 of the solenoid section 14 has a solenoid 16 formed by winding a conductor or the like around its outer periphery, and a yoke 17 is provided outside these.
A fixed core 18 is fitted to the rear end of the bobbin 15, and a plunger 19 is slidably mounted in the axial direction at the front end. The members constituting these solenoid portions 14 are sealed by a housing 20 made of, for example, resin.

A valve seat 21 is provided in front of the plunger 19, and an air supply hole 22 is opened in the valve seat 21 toward the plunger 19, and a fluid chamber 23 is provided in front of the plunger 19. Is formed. The air supply hole 22 communicates with the air supply port 2 through a communication channel 24. Plunger 1
A valve body 25 for closing the air supply hole 22 is provided at a tip end of the cylinder 9, and a resilient force in a direction of retracting the plunger 19 is urged by a compression coil spring 26. Therefore, when the solenoid 16 is not energized, the resilient force of the compression coil spring 26 causes
Is to be opened.

The solenoid section 14 includes the pilot pressure chamber 2
7 is formed, and an exhaust hole 29 is formed in the fluid chamber 28 so as to open. The exhaust hole 29 communicates with the first and second exhaust ports 3a and 3b through a communication channel 30. A valve 31 is disposed in the fluid chamber 28 to open and close the exhaust hole 29. A resilient force in a direction to close the exhaust hole 29 is urged by the compression coil spring 32 on the valve 31. ing. The elastic force of the compression coil spring 32 is set to be weaker than the elastic force of the compression coil spring 26 for retracting the plunger 19.

The distance between the plunger 19 and the valve body 31 is 2
A predetermined distance is set by an interlocking pin 34 penetrating through a communication hole 33 that connects the two fluid chambers 23 and 28.

When the solenoid 16 of the solenoid section 14 is not energized, as shown in FIG.
Is closed by the valve body 25, so that no fluid is supplied into the pilot pressure chamber 27, and the spool shaft 7 is moved to the first position on the left side in FIG. It becomes the exhaust position.

On the other hand, when the solenoid 16 is energized, the plunger 1 resists the elastic force of the compression coil spring 26.
9 will move backward. Thereby, the air supply hole 22
Is opened and the exhaust hole 29 is closed by the valve element 31, so that the fluid in the air supply port 2 is supplied to the pilot pressure chamber 27 via the communication flow path 24 and the fluid chamber 23, and the spool The shaft 7 moves to the right side in the figure together with the piston 35 to reach the second position shown in FIG. 3, that is, the air supply position.

When the manifold solenoid valve having such a structure is connected to the single-acting cylinder 10, when the piston rod 10a of the single-acting cylinder 10 is moved forward, as shown in FIG.
As shown in FIG.
To the second position. Thereby, fluid is supplied from the fluid pressure supply device 8 to the air supply opening 9 through the first output port 4a, and the fluid is supplied from the output opening 11 to the second output port 4a.
Through b, the single-acting cylinder 10 is operated.

On the other hand, as shown in FIG.
Is released, the spool shaft 7 is brought to the first position by the elastic force of the compression coil spring 37. As a result, the fluid in the single-acting cylinder 10 passes through the exhaust opening 12 and
The gas is exhausted from the exhaust port 3a and the piston rod 1
0a moves to the retreat position.

In the single-acting cylinder 10 shown in FIGS. 2 and 3, the piston is moved backward by its own weight. However, the piston may be moved backward by the elastic force of the compression coil spring 36, for example. Good.

(Embodiment 2) FIG. 4 is a sectional view showing a manifold solenoid valve according to another embodiment of the present invention.

The manifold solenoid valve of the present embodiment has a two-port solenoid valve 45 and a manifold 41 for a five-port solenoid valve.
Is mounted. That is, the two-port solenoid valve 45 is connected to the first output port 44a of the manifold 41.
The air supply opening 49 communicates with the second output port 44b, and the air supply port 42 and the first and second exhaust ports 43 formed in the manifold 41.
a and 43b are closed by the valve block portion 46.

The first output port 44a communicating with the air supply opening 49 of the two-port solenoid valve 45 has, for example, a fluid pressure supply device 48 connected to the second output port 44b communicating with the output opening 51. Is a single-acting cylinder (fluid pressure operating device) 50 connected to each.

In the manifold solenoid valve of the present embodiment, the manifold 41 is provided in the air supply opening 49 of the two-port solenoid valve 45.
The fluid is supplied from the first output port 44a, and this activates the single-acting cylinder 50 from the output opening 51 through the second output port 44b.

Although the invention made by the present inventors has been specifically described based on the embodiments, the invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the invention. Needless to say.

For example, in the first embodiment, the first output port communicates with the intake opening, the second output port communicates with the output opening, and the first exhaust port communicates with the exhaust opening.
Shows a manifold solenoid valve in which the first output port communicates with the intake opening and the second output port communicates with the output opening, but the intake opening and the output opening are opposite to each other. It is possible to communicate with the output port,
The exhaust opening can also be communicated with the second exhaust port.

In this embodiment, the case where the single-acting cylinders 10 and 50 are used as the fluid pressure operating device is shown. However, the present invention is applied to various fluid pressure operating devices which operate by supplying and discharging fluid. Is possible. Further, in the case of this embodiment, the indirect pilot type three-port or two-port solenoid valves 5 and 45 having the pilot pressure chamber 27 are mounted on the manifolds 1 and 41. It can also be installed.

Further, as described above, the fluid pressure supply device 8 connected to the manifold solenoid valve of the present embodiment also includes a negative pressure supply device. Connected to port 4a, single-acting cylinder 1
Instead of 0, a vacuum cup can be connected to the second output port 4b.

[0039]

[Effects of the Invention] Of the ideas disclosed in the present application, the effects obtained by typical ones will be briefly described.
It is as follows.

(1) According to the manifold solenoid valve of the present invention, fluid is supplied from one output port of the manifold to the air supply opening of the three-port solenoid valve mounted on the manifold for the five-port solenoid valve. Is supplied, which activates the hydraulically operated device from the output opening through the other output port and then is exhausted from one exhaust port through the exhaust opening. Fluid is supplied from one output port of the manifold to the air supply opening of the two-port solenoid valve mounted on the manifold for the five-port solenoid valve, and the fluid flows from the output opening through the other output port. Activate the pressure operated device. Therefore, a 3-port solenoid valve or a 2-port solenoid valve can be mounted on a manifold for a 5-port solenoid valve without using a spacer, and can be used independently of other solenoid valves.

(2) Therefore, one manifold solenoid valve can be used under different fluids such as air and nitrogen, or under different fluid pressures.

(3) Also, since the spacer is not required,
The step of mounting a spacer between the manifold and the solenoid valve can be omitted, and all the solenoid valves can be installed at the same height, so that the space efficiency is not hindered by the manifold solenoid valve. Absent.

(4) Similarly, since the spacer is not required, the number of parts can be reduced, and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a manifold solenoid valve according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing a state where a spool shaft of the manifold solenoid valve is at a first position for exhaust.

FIG. 3 is a sectional view showing a state where a spool shaft of the manifold solenoid valve is at a second position for air supply.

FIG. 4 is a sectional view showing a manifold solenoid valve according to a second embodiment of the present invention.

FIG. 5 is a sectional view showing a conventional manifold solenoid valve.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Manifold 2 Air supply port 3a 1st exhaust port 3b 2nd exhaust port 4a 1st output port 4b 2nd output port 5 3 port solenoid valve 6 Valve block part 7 Spool shaft 7a Spool groove 8 Fluid pressure supply equipment 9 Air supply Opening 10 Single-acting cylinder (fluid pressure operating device) 10a Piston rod 11 Output opening 12 Exhaust opening 13a Sealing material 13b Sealing material 13c Sealing material 13d Sealing material 14 Solenoid part 15 Bobbin 16 Solenoid 17 Yoke 18 Fixed core 19 Plunger 20 Housing 21 Valve seat 22 Air supply hole 23 Fluid chamber 24 Communication channel 25 Valve 26 Compression coil spring 27 Pilot pressure chamber 28 Fluid chamber 29 Exhaust port 30 Communication channel 31 Valve 32 Compression coil spring 33 Communication hole 34 Interlock Pin 35 Piston 36 Compression coil Spring 37 Compression coil spring 41 Manifold 42 Air supply port 43a First exhaust port 43b Second exhaust port 44a First output port 44b Second output port 45 Two-port solenoid valve 46 Valve block part 48 Fluid pressure supply device 49 Air supply opening Part 50 Single-acting cylinder (fluid pressure operating device) 51 Output opening 61 Manifold 62 Air supply port 63 Exhaust port 64 Output port 65 Solenoid valve 66 Spacer

Claims (2)

(57) [Scope of request for utility model registration] 1. A manifold having a supply port, first and second output ports, and first and second exhaust ports, a valve block having a valve hole formed therein. A manifold solenoid valve mounted with a plurality of solenoid valves having a spool shaft slidably provided therein, wherein the manifold valve is formed to open in the valve hole of the valve block portion, and is provided in the first or second output port. An air supply opening communicating with one of the output ports; an output opening formed in the valve hole of the valve block and communicating with the other output port; An exhaust opening formed in the valve hole and communicating with one of the first and second exhaust ports, wherein the air supply port and the other exhaust formed in the manifold are provided. Port and the valve block A three-port solenoid valve closed by a unit is mounted on the manifold, and a fluid pressure supply device communicates with the output port communicating with the air supply opening, and a fluid pressure supply device operates with fluid pressure on the output port communicating with the output opening. A manifold solenoid valve to which each device is connected. 2. A manifold in which a supply port, first and second output ports, and first and second exhaust ports are formed, the manifold having a valve block having a valve hole therein. A manifold solenoid valve having a plurality of solenoid valves provided with a spool shaft so as to be slidable in the valve block, wherein the manifold valve is formed to open in the valve hole of the valve block portion, and is provided in one of the first and second output ports. An air supply opening communicating with one of the output ports, an output opening formed in the valve hole of the valve block and communicating with the other output port, and formed in the manifold; A two-port solenoid valve, wherein the air supply port and the first and second exhaust ports are closed by the valve block, is mounted on the manifold, and a fluid pressure is applied to the output port communicating with the air supply opening. Feeding machine But hydraulically motive device to said output port communicating with said output opening, the manifold solenoid valve, characterized in that it is connected.