JP2000257736A - Actuator with slave unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a solenoid valve manifold with a slave unit suitable for the installation in a narrow part. SOLUTION: A child unit 6 is installed on the end of a solenoid valve manifold 1. Respective ports 9-12 from the solenoid valve manifold 1 are entirely pointed to a front side and respective connection stands 36, 37 for the child unit 6 are also entirely pointed to the front side. Further, in the child unit 6, the slave unit 22 is formed removably to the front side against the pedstal 21. Therefore, as the piping, wiring and removal of the slave unit 22 can be all carried out at the front side of the solenoid valve manifold 1, a prescribed space may be only ensured at least front side of the solenoid valve manifold 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an actuator with a slave station such as a solenoid valve manifold having a slave station.

[0002]

2. Description of the Related Art When a large number of external fluid pressure devices, for example, hydraulic cylinders, are driven by switching the supply and discharge of fluid by a solenoid valve, a large number of solenoid valves are integrated corresponding to each external fluid pressure device. Solenoid valve manifold is used.

The solenoid valve manifold is constructed by mounting the solenoid valves on a manifold base having a fluid supply passage and a fluid discharge passage common to the solenoid valves, or the solenoid valve itself is provided with the fluid supply passages and fluids. In general, a part of the discharge passage is formed to form a series of fluid supply passages and a fluid discharge passage in a state where the respective solenoid valves are connected in series, and the manifold base is omitted. In addition, a type in which the manifold base is omitted may be referred to as a manifold solenoid valve, but in this specification, it is referred to as a solenoid valve manifold except for a part that particularly refers to one. Such a solenoid valve manifold is excellent in that high integration and space saving can be achieved.

[0004] In the solenoid valve manifold, a slave station may be arranged at a longitudinal end of a manifold base or an end in a continuous direction of a continuously provided solenoid valve. This slave station
An electromagnetic valve side connector for consolidating the wiring of each electromagnetic valve, and an external connector for connecting wiring such as a signal line or a power supply line from a control device (master station) or the like provided outside are provided.

The slave station has a function as a control unit incorporating a control board in some cases. That is, while reducing wiring is realized by serial transmission between the master station and slave station, signals corresponding to individual solenoid valves can be transmitted between each solenoid valve and slave station by parallel transmission. In many cases, a slave station is provided with a control board such as a programmable controller or a setting switch for setting an address of the slave station.

[0006]

The solenoid valve manifold is often installed in a very small space. For this reason, the demand for downsizing of the solenoid valve manifold is currently increasing.

However, when the solenoid valve manifold is installed in a small space, it becomes difficult to operate the setting switch on the slave station side, maintenance and inspection work of the slave station becomes difficult, and wiring becomes difficult. Various inconveniences such as difficulty in operation occur.

Although the various disadvantages described above are remarkable in the solenoid valve manifold, similar disadvantages are seen in other actuators with slave stations.

[0009] The present invention has been made in view of the above circumstances, and has as one of its main objects to provide an actuator with a slave station suitable for installation in a narrow portion.

[0010]

Means for Solving the Problems and Effects of the Invention
Means and the like that can solve the above problems will be listed. In addition,
Actions, effects, specific means, and the like will be additionally described as necessary.

1. The actuator body has a port to which external piping can be connected to perform at least one of fluid input and output, and the slave station has external wiring connected to transmit at least one of external signals or power to the actuator body. A slave station-equipped actuator provided with an enabled connection part, wherein connection of an external pipe to the port and connection of an external wiring to the connection part are performed on the same surface side. According to this means, since the connection of the external piping to the port and the connection of the external wiring to the connection portion are performed on the same surface side, it is sufficient to secure a space for the connection work on only one surface side. .

2. The actuator body has a port to which external piping can be connected to perform at least one of fluid input and output, and the slave station has external wiring connected to transmit at least one of external signals or power to the actuator body. In an actuator with a slave station provided with a connection portion that is enabled, the slave station includes a unitized slave station unit, the slave station unit is detachable from the actuator body, and connection of an external pipe to the port is performed. An actuator with a slave station configured such that the attachment and detachment of the slave station unit is performed on the same surface side. According to this means,
Since the connection of the external piping to the port and the attachment / detachment of the slave station unit are performed on the same surface side, it is only necessary to secure a space for the connection work and the attachment / detachment work of the slave station unit on only one surface side.

3. The actuator body has a port to which external piping can be connected to perform at least one of fluid input and output, and the slave station has external wiring connected to transmit at least one of external signals or power to the actuator body. In an actuator with a slave station provided with a connection portion that is enabled, the slave station includes a unitized slave station unit, the slave station unit is detachable from the actuator body, and connection of an external pipe to the port is performed. And a slave station-equipped actuator configured so that connection of external wiring to the connection part and attachment / detachment of the slave station unit are performed on the same surface side. According to this means, since the connection of the external piping to the port, the connection of the external wiring to the connection portion, and the attachment / detachment of the slave station unit are performed on the same side, a space for the connection work and the slave station unit attachment / detachment work is provided. Need only be secured on one side.

4. In a slave station-equipped actuator having a slave station having a connection portion capable of connecting an external wiring to transmit at least one of an external signal or a power supply to the actuator body, the slave station includes a unitized slave station unit. An actuator with a slave station, wherein the slave station unit is detachable from the actuator body, and connection of external wiring to the connection portion and attachment and detachment of the slave station unit are performed on the same surface side. According to this means, since the connection of the external wiring to the connection portion and the attachment / detachment of the slave station unit are performed on the same surface side, the space for the connection work and the attachment / detachment work of the slave station unit is secured on only one surface side. It will be good if you leave it.

[0015] 5. In the actuator with a slave station according to any one of the means 2 to 4, the slave station includes a mounting portion on which the slave station unit is mounted, and the mounting portion is fixedly installed on the actuator body. And a slave station-equipped actuator, wherein connectors are provided on opposite sides of the slave station unit, the connectors being connected to each other by attaching the slave station unit to the mounting portion. According to this means, further, at the time of mounting the slave unit to the mounting part, since the connector connection between the mounting part and the slave unit is performed simultaneously and automatically,
The need for extra wiring connection work associated with the separation of the mounting unit and slave unit is eliminated.

6. In the actuator with a slave station according to the above means 5, a storage space for accommodating the slave station unit is formed in the mounting section, and the mounting section and the slave station are stored in a state where the slave station unit is housed in the storage space. An actuator with a slave station that is configured to have a substantially rectangular parallelepiped shape with the unit. According to this means, a storage space is provided in the mounting portion so that the slave station unit can be housed therein, and when the slave station unit is mounted, it is formed into a compact shape having a substantially rectangular parallelepiped shape. Size and compactness can be achieved.

[7] 7. The actuator with a slave station according to claim 5 or 6, further comprising a guide means for guiding the slave station unit in the mounting / removing direction when the slave station unit is mounted on the mounting portion. According to this means, the presence of the guide means makes it possible to smoothly attach and detach the slave station unit, thereby making it easier to attach the slave station unit.

[8] 8. The actuator with a slave station according to any one of the means 5 to 7, further comprising a fixing member for fixing the slave station unit by the mounting portion, and the fixing of the slave station unit by the fixing member is also performed on the same surface side. Actuator with slave station configured as described above. According to this means,
Since the slave station unit can be securely fixed by the mounting portion and the fixing operation can be performed on the same surface side, no extra space is required.

9. In the actuator with a slave station according to any one of the above means 1 to 8, the actuator main body is configured by arranging a plurality of solenoid valves in a plurality, and a supply / discharge port is provided for each solenoid valve. Actuators with slave stations that are provided respectively. According to this means, the number of pipes becomes very large by integrating a plurality of solenoid valves, but even in this case, the above advantages in space and the like can be obtained.

[10] In the actuator with a slave station according to the means 9, the actuator body further includes a common flow path for supplying and discharging fluid to each solenoid valve, and further includes a common port for the common flow path, and The external-station-equipped actuator configured so that the connection of the external piping is also performed on the same surface side. According to this means, a common port can also be formed on the same surface side, and an installation space,
Advantages such as maintenance and inspection space are further increased.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment will be described below with reference to FIGS.

FIG. 1 is a perspective view of the entire solenoid valve manifold 1. As shown in FIG.
Has a plurality of manifold blocks 2. These manifold blocks 2 are arranged in one direction. End blocks 3 are arranged at both ends in the arrangement direction of the manifold blocks 2 arranged in this manner. A supply / discharge block 4 is arranged between one end block 3 and the manifold block 2 adjacent thereto. Above the manifold block 2, a solenoid valve 5 is mounted. A slave station 6 is arranged adjacent to one end block 3, specifically, the end block 3 on the side remote from the supply / discharge block 4.

The solenoid valve manifold 1 is basically composed of the manifold block 2, end block 3, supply / discharge block 4, solenoid valve 5, and slave station 6. The solenoid valve manifold 1 composed of these components is integrally fixed on a DIN rail 8 by a retainer 7 constituting a fixture. Note that the manifold block 2 may be formed in a long shape as a single member instead of providing a plurality of manifold blocks. In addition, the attachment is not limited to the illustrated retainer 7, and the installation site is D.
It is not limited to the IN rail 8. Further, the solenoid valve manifold may be configured as a so-called manifold solenoid valve in which the manifold block 2 is omitted.

When the manifold blocks 2 are arranged side by side, a common supply flow path and a common discharge flow path (not shown) extending in the longitudinal direction (arrangement direction) are formed inside the manifold blocks 2. Both ends of the common supply channel and the common discharge channel in the longitudinal direction are sealed by the end block 2. The common supply channel and the common discharge channel are connected to a common supply port 9 formed in the supply / discharge block 4.
And a common discharge port 10.

The common supply port 9 and the common discharge port 10 are both provided on the front side of the solenoid valve manifold 1 and are directed forward. External fluid pipes connected to the common supply port 9 and the common discharge port 10 are mounted horizontally from the front side of the solenoid valve manifold 1. When the fluid is being supplied from the common supply port 9 via the external fluid pipe, the fluid is constantly supplied to each manifold block 2 via the common supply flow path. In addition, the fluid in the common discharge channel is collectively discharged from the external fluid pipe via the common discharge port 10.
Here, it is intended that high-pressure air is used as the fluid, but it is not limited to high-pressure air, and may be applied to liquids such as gas other than air and oil other than gas. Needless to say.

A first output port 11 and a second output port 1 are provided on the front side of each manifold block 2, respectively.
2 are provided. Both the first output port 11 and the second output port 12 are provided on the front side of each manifold block 2 and are directed forward. External fluid pipes connected to the first output port 11 and the second output port 12 are attached horizontally from the front side of the solenoid valve manifold 1. Then, fluid is supplied and discharged to and from an external fluid pressure device such as a fluid pressure cylinder through the external fluid pipe. That is, the first output port 11 and the second output port 12 can be positioned as individual ports in relation to the common supply port 9 and the common discharge port 10.

The electromagnetic valve 5 includes a flow path switching unit 13 and an electromagnetic switching unit 14. Among them, the flow path switching unit 13 is disposed immediately above the manifold block 2 and is detachably fixed on the manifold block 2 by a plurality of screws. The flow path switching unit 13 includes a spool extending in the front-rear direction. The spool is switched by pilot pressure. Each manifold block 2
Are formed with a plurality of flow paths communicating with the flow path switching unit 13, and the flow paths are switched by the switching drive of the spool.

The electromagnetic switching section 14 includes the flow path switching section 1
3 and is provided integrally with the flow path switching unit 13. The electromagnetic switching unit 14 includes a pilot valve and a flow path for supplying a pilot pressure to the end of the spool or discharging the pilot pressure from the end of the spool, and a solenoid 16 (see FIG. 4 is shown).

In the solenoid valve 5, the electromagnetic switching unit 1 is provided.
There are a single solenoid type provided with only one and a double solenoid type provided with two electromagnetic switching portions 14. In this embodiment, both the single solenoid type and the double solenoid type are mixed. ing. A connection cord 15 for supplying power to a solenoid 16 extends from each of the electromagnetic switching units 14.

Accordingly, the switching of the flow path by the electromagnetic switching unit 14 causes the first supply port to communicate with the first output port 11 and the first discharge path to communicate the common discharge flow path with the second output port 12. The state is switched to a second switching state in which the common supply passage and the second output port 12 are communicated and the common discharge passage and the first output port 11 are communicated. In addition, the double solenoid type solenoid valve 5 includes:
In addition to the first switching state and the second switching state, a common supply flow path and a common discharge flow path are connected to both the first and second output ports 1.
Some can be switched to a neutral state that is not communicated with either of 1 and 12. In addition, the solenoid valve 5 is not limited to one in which both the single and double solenoid type are mixedly mounted.
Only a single solenoid type or only a double solenoid type may be mounted.

The slave station 6 is basically composed of a pedestal 21 fixed to the DIN rail 8 and a slave station unit 22 detachably mounted on the pedestal 21.
And As shown in FIG.
Is detachable from the pedestal 21. The slave station unit 22 has a substantially rectangular parallelepiped shape. The pedestal 21
Has a storage space portion 23 for storing the slave station unit 22.
Are formed. The storage space 23 is open on the front surface, the side surface and the upper surface on the end side of the solenoid valve manifold 1, and when the slave station unit 22 is stored in the storage space 23, as shown in FIG. , The slave station 6 as a whole is formed into a substantially rectangular parallelepiped compact shape. That is,
The storage space 23 is a space that substantially matches the outer shape of the slave station unit 22.

On the rear side of the pedestal 21, a terminal block box 24 constituting a part of the slave station 6 is provided.
The terminal block box 24 has a built-in terminal block in which one ends of the connection cords 15 extending from the electromagnetic switching sections 14 are collectively connected. As shown in FIG.
1, a connector 25 is provided on an upright surface facing the rear surface of the slave station unit 22. The connector 25
Are electrically connected to the terminal block. A connector (not shown) connected to the connector 25 is provided on the rear surface of the slave station unit 22.

On the upright surface of the pedestal 21 on which the connector 25 is formed, a guide recess 26 is provided above the connector 25 and opens forward. A step 27 is provided on the front side of the bottom surface of the pedestal 21. A guide groove 28 that opens toward the step 27 is provided in a part of the bottom surface of the base 21 on the front side. On the other hand, on the rear surface of the slave station unit 22, a guide projection is provided in the guide recess 26 from the front side in a horizontal direction. On the front side of the lower surface of the slave station unit 22, a projecting piece 29 to be engaged with the step portion 27 is formed. Immediately after the projecting piece 29 on the lower surface of the slave station unit 22, a guide projection (not shown) to be inserted into the guide groove 28 is provided. These guide projections, protrusions 29 and guide projections are all integrally formed with the main body case of the slave station unit 22.

Therefore, by moving the slave station unit 22 horizontally from the front to the rear while housing it in the housing space 23, the guide projection is inserted into the guide recess 26, and The guide protrusion is inserted into the guide groove 28. When the slave station unit 22 is finally housed in the housing space 23, the connector 25 and the connector of the slave station unit 22 are electrically connected.

The upright surface of the step 27 is provided with a screw hole 30 extending in the front-rear direction and opening forward. The protruding piece 29 is provided with a through hole 31 that penetrates forward and backward corresponding to the screw hole 30. Then, in a state where the slave station unit 22 is housed in the housing space portion 23, the fixing screw 32 is screwed into the screw hole 30 through the through hole 31 from the front, so that the slave station unit 22 is It is fixed on the pedestal 21. When detaching the slave unit 22 from the pedestal 21, the fixing screw 32
May be removed to the near side, and the slave station unit 22 may be slid to the near side.

The slave station unit 22 includes a control board 35
(Illustrated only in FIGS. 4 and 5). Control board 3
5 is stored in a vertical position. The control board 35 is electrically connected to the connector. On the front side of the slave station unit 22, a power supply connection base 36 is provided above and a signal connection base 37 is provided below. These two connection bases 36, 37 are directed forward. The power supply connection base 36 is connected to a power supply connector horizontally from the front side, and the signal connection base 37 is similarly connected to a signal connector horizontally from the front side. These two connection bases 36 and 37 are also electrically connected to the control board 35. Therefore, the control board 35 to which the power and the signal are supplied outputs a power of a predetermined voltage and a predetermined signal to each solenoid valve 5, and the necessary solenoid valve 5 is operated appropriately.

As described above, the common supply port 9, the common discharge port 10, the first output port 11, and the second output port 1
The ports 2 are all provided on the front side and are directed forward in the same direction, and the connection of the external fluid piping to each port can be mounted horizontally on the front side of the solenoid valve manifold 1. is there. Also, space for external fluid piping is sufficient only on the front side of the solenoid valve manifold 1. In addition, attachment / detachment of the slave station 22 to / from the pedestal 21 may be performed by moving the slave station 22 in the horizontal direction on the front side of the solenoid valve manifold 1. Further, a power supply connection base 36 and a signal connection base 37 are also provided on the front side, and a connector connection therewith can be made on the front side of the solenoid valve manifold 1.

A transparent or translucent cover 41 is mounted on the upper side of the main body case of the slave station unit 22 so as to be openable and closable. When the cover 41 is opened, a setting switch (not shown) is exposed on the upper surface side of the slave station unit 22. This setting switch is operated when setting the address of the slave station 6. The setting switch is connected to the control board 3
5 and the set address is transmitted to the control board 35 side.

On one side of the control board 35, FIG.
The light emitting diode 42 is provided as shown in FIG.
As the light-emitting diode 42, an inexpensive light-emitting diode that emits light on the surface opposite to the mounting surface on the control board 35 is used. The light emitting diode 42 is provided for monitoring for operation confirmation, and emits light when a predetermined condition is satisfied, and is extinguished when the condition is not satisfied. The light emitting state of the light emitting diode 42 can be viewed from above through the display window 43 and the cover 41. It should be noted that a plurality of light emitting diodes 42 are actually provided, each of which is connected to the control board 35.

Here, most of the light emitting diodes 42 emit light in the horizontal direction because the control board 35 is placed vertically. As a result, the amount of light emitted from the display window 43 formed on the upper surface of the slave station unit 22 may be insufficient, and the light emitting state may be difficult to recognize. Therefore, in this embodiment, a reflection piece 44 disposed on a side facing the light emitting diode 42 is formed integrally with the main body case of the slave station unit 22. The reflection piece 44 is integrally formed so as to extend downward from the peripheral edge of the display window 43 and to extend obliquely downward toward the light emitting diode 42 from the middle. Therefore,
Most of the light emitted from the light emitting diode 42 is reflected by the reflection piece 44 and guided to the outside, that is, upward from the display window 43.

As shown in FIG. 5B, a sheet 45 is adhered on the upper surface side of the main unit case of the slave station unit 22 so as to cover the display window 43. For convenience of explanation, FIG. 5B shows the sheet 45 thicker than it actually is. However, the sheet 45 is actually formed in a considerably thin film shape. The sheet 45 is made of the transparent film 4 in order from the upper layer.
6, the ground color film 47 and the reflection film 48 are laminated.

The transparent film 46 is transparent or translucent, and covers the display window 43 completely. The ground color film 47 is provided on the front side of the sheet 45 (the slave unit 2).
2 determines the color as viewed from the upper surface side of this embodiment. In this embodiment, the color is milky white. By printing characters, symbols, and the like on the ground color film 47, various types of information can be displayed so as to be visible from the operator side. The reflection film 48 reflects light, and is made of black or silver in this embodiment. The ground color film 47 and the reflection film 48 are formed so as to close the periphery of the display window 43 and open a central portion excluding the periphery of the display window 43.

Accordingly, the light emitted from the light emitting diode 42 is collected by the display window 43 having a sufficient size by the condensing of the reflection plate 44, and after being focused by the reflection film 48, is guided to the outside. I will As a result, when the light emitted from the light emitting diode 42 is viewed from the outside, a sufficient amount of light is obtained and the blur is eliminated, so that the state becomes very easy to see.

Next, the electrical configuration will be described with reference to FIGS.
This will be mainly described. FIG. 3 shows a plurality of solenoid valve manifolds 1
FIG. 4 is a schematic diagram showing a control system of one solenoid valve manifold 1.

As shown in FIG. 3, the solenoid valve manifold 1
Is arranged at an appropriate position in a production factory, for example. Each slave station 6 of these many solenoid valve manifolds 1 is connected to a signal line 51.
Is connected to the master station 52 via the. The signal line 51 is provided with the signal connector at an end thereof, and the signal connector is connected to the signal connection base 37. Master station 5
Reference numeral 2 denotes a control device including, for example, a programmable controller, which transmits a serial signal to each slave station 6 via a signal line 51. The serial signal includes an address signal, and each slave station 6 determines whether or not the signal is related to its own address preset by the setting switch. Is the parent station 52
The control required to operate the solenoid valve 5 that has been instructed is performed.

Each of the slave stations 6 is connected to a power supply unit 54 via a power supply line 53. The power supply line 53 is provided with the power supply connector at an end thereof, and the power supply connector is connected to the power supply connection base 37. Power supply unit 54
Supplies a predetermined voltage VG to each slave station 6.

As shown in FIG. 4, a power supply circuit 55 connected to the power supply line 53 is mounted on the control board 35. The power supply circuit 55 includes, for example, a DC / DC converter and generates the first voltage V1-G1 and the second voltage V2-G2 that are insulated from each other.

A serial / parallel conversion circuit 56 connected to the signal line 51 is mounted on the control board 35. The serial / parallel conversion circuit 56
It operates in response to the voltage V1-G1.
Is converted into a parallel signal at n points (n is 16 in this embodiment). This parallel signal is an on / off signal for instructing whether or not to excite each of the solenoids 16.

The same number (n) of zener diode built-in photocouplers 57 as the number of serial signals are mounted on the control board 35. Each zener diode built-in photocoupler 57 has a light emitting diode 5 on the input side.
8, an NPN type phototransistor 59 on the output side,
Each has a built-in. The phototransistor 59 is a current amplifying element that is turned on when the light emitting diode 58 emits light to flow a predetermined amplified current between the collector and the emitter. A Zener diode 60 is connected between the base and the collector of the phototransistor 59. The Zener diode 60 is for absorbing a surge voltage.

One end of a resistor 61 is connected to the anode side of each of the light emitting diodes 58, and a voltage V 1 generated by the power supply circuit 55 is applied to the other end of the resistor 61. A parallel signal line of the serial / parallel conversion circuit 56 is connected to the cathode side of each of the light emitting diodes 58. Therefore, when an ON signal is transmitted from the serial / parallel conversion circuit 56 via a parallel signal line, the corresponding light emitting diode 58 is turned on.

The emitter side of each phototransistor 59 is connected to the ground voltage G2 generated by the power supply circuit 55.
It is said. On the other hand, one end of a solenoid 16 is connected to the collector side of each phototransistor 59. The other end of each solenoid 16 is connected to the power supply circuit 55
Is applied. Therefore,
When the light from the light emitting diode 58 is applied to the base light receiving portion of the phototransistor 59, the phototransistor 5
9 is turned on, and a predetermined amplified current flows through the solenoid 16. Thereby, the solenoid 16 is excited.

On the other hand, when the light emitting diode 58 is turned off, the phototransistor 59 is turned off. At this time, a surge voltage that is ten times or more the power supply voltage is generated from the solenoid 16. This surge voltage causes a malfunction or a failure. However, when the surge voltage reaches or exceeds the Zener voltage of the Zener diode 60, a reverse current rapidly flows through the Zener diode 60 to turn on the phototransistor 59, thereby absorbing the surge voltage. Thereby, in addition to the effect of suppressing the surge voltage, the responsiveness when the solenoid 16 is turned off is improved. The photocoupler 5 with a built-in Zener diode
By using a photocoupler such as 7, the serial / parallel conversion circuit 56 and the solenoid 16 can be kept in an insulated state.

According to the embodiment described above, the common supply port 9, the common discharge port 10, the first output port 1
The first and second output ports 12 are all provided on the front surface and are directed forward in the same direction. The connection of the external fluid piping to each port is horizontal on the front side of the solenoid valve manifold 1. Can be mounted in any direction. Also, space for external fluid piping is sufficient only on the front side of the solenoid valve manifold 1. In addition, attachment / detachment of the slave station 22 to / from the pedestal 21 may be performed by moving the slave station 22 in the horizontal direction on the front side of the solenoid valve manifold 1. Further, a power supply connection base 36 and a signal connection base 37 are also provided on the front side, and a connector connection therewith can be made on the front side of the solenoid valve manifold 1. Therefore, it is only necessary to secure a predetermined space on the front side of the solenoid valve manifold 1, and the solenoid valve manifold 1 can be arranged in a narrow portion. In addition, the slave station unit 22 can be removed using the front space used for the external fluid piping, and the space can be effectively used.

The connection cord 1 extending from each solenoid valve 5
Even when the slave station unit 22 is removed from the base 21 while the slave station unit 5 is connected to the terminal block box 24 of the slave station 6, power supply from the power supply unit 54 is continued to the slave station unit 22. Therefore,
There is an advantage that the setting can be performed by the setting switch on the side of the detached slave station unit 22, and the setting operation becomes extremely easy.

Further, when the slave station unit 22 is mounted from the pedestal 21, each surface of the storage space 23 serves as a guide, and the positioning can be performed by the guide recess 26 and the guide groove 28, thereby facilitating the positioning operation. . Moreover, since the connector 25 is automatically connected to the connector of the slave station unit 22 at the time of the positioning, a separate connection operation can be substantially omitted. Further, the guide concave portion 26 and the guide convex portion are engaged on the rear surface side of the slave station unit 22. In this state, it is only necessary to fix the slave station unit 22 from the front side with the fixing screw 32. The fixing operation of the fixing member 22 is facilitated and the fixing state of the fixing member 22 is also ensured.

In the embodiment described above, for example, a part of the configuration can be appropriately changed and implemented as follows. Of course, other modifications not illustrated below are naturally possible.

In the above embodiment, all ports 9 to
12 was installed on the front side of the solenoid valve manifold 1 toward the front, the detachment and attachment of the slave station unit 22 was also in the same direction, and the connection bases 36 and 37 were also installed in the same direction. Instead, as shown in FIG.
12 (the common supply port and the common discharge port are not shown, but are also installed so as to be directed upward on the upper surface), and are installed upward on the upper surface side of the solenoid valve manifold 1. Mounting / detaching direction of the station unit 22,
Similarly, the direction of each connection stand 37 may be the upper side. In the solenoid valve manifold 1 configured as described above,
This is advantageous when a predetermined space exists above the solenoid valve manifold 1.

As shown in FIG. 7, the control board 35 may be accommodated in the slave station unit 22 in a horizontal state. In this case, the operation-checking light emitting diode 42 emits light upward. Therefore, in this case, instead of the reflecting plate 44 shown in FIG. 5A, a reflecting plate 71 disposed around the optical path is provided so as to prevent light from leaking to the side. It is preferable to integrally form the case body.

A photocoupler with a built-in Zener diode 72 shown in FIG. 8A may be used instead of the photocoupler with a built-in Zener diode 57 shown in FIG. This photocoupler 72 is different from the photocoupler 57 in that
An NPN transistor 73 is added to the output side, and the emitter of the phototransistor 59 is connected to the base of the transistor 73. By using the photocoupler 72 with a built-in Zener diode, the current amplification factor can be increased as compared with that of the above-described embodiment.
There is an advantage that the operation of the solenoid 16 can be ensured by applying a relatively large current to the solenoid 6.

A photocoupler with a built-in zener diode 74 shown in FIG. 8B may be used instead of the photocoupler with a built-in zener diode 57 shown in FIG. This photocoupler 74 is different from the photocoupler 72 described with reference to FIG. 8A only in that the connection position of the Zener diode 60 is different. That is, here
The Zener diode 60 is connected between the base and the collector of the transistor 73. The use of the photocoupler 74 with a built-in Zener diode also has the advantage that the current amplification factor can be increased as compared with the embodiment described above, and a relatively large current can flow through the solenoid 16.

In FIG. 4, each photocoupler 57 is individually provided corresponding to each solenoid 16, but as shown in FIG. 9, the light emitting diode 5 is provided in the photocoupler main body.
8. Phototransistor 59 and Zener diode 6
It is also possible to use a photocoupler component having a plurality of 0s as one set. In this case, as compared with the case where the photocouplers 57 are individually provided as shown in FIG.
By reducing the number of elements mounted on the device 5 and the area occupied by the photocoupler 57, the size of the control board 35 can be reduced and the mounting process can be further simplified.

Although the solenoid valve manifold 1 has been described, the present invention can be applied to other actuators with slave stations.

Next, the characteristic means that can be grasped from each of the embodiments described above will be listed below.

(1) A display device in which a substrate is housed in a main body case, a light emitting element is mounted on the substrate, and a display window is formed in a part of the main body case so that a display window through which the light emitting state of the light emitting element can be visually recognized is formed. In the slave station unit 22) in the embodiment,
Disposing the substrate along a surface substantially perpendicular to the display window surface, and integrally forming a reflector extending from the vicinity of the display window of the case body to a position facing the light emitting element, integrally with the case body; A display device in which a part of the emitted light is reflected by the reflection plate toward the display window. According to this means, a sufficient amount of light is emitted from the display window even when an inexpensive light emitting element is used as a so-called vertical substrate type, and the light emitting state of the light emitting element can be easily seen. In addition, since the reflector is formed integrally with the case body, increase in the number of parts and the number of assembling steps can be suppressed.

(2) The display according to the above means 1, wherein at least a front end of the reflector is directed toward the light emitting element. According to this means, light directed from the light emitting element to the side opposite to the display window is also reflected by the reflector and guided to the display window side.

(3) A light emitting element is built in the main body case,
In a display device (slave station unit 22 in the embodiment) in which a display window in which the light emitting state of the light emitting element can be visually recognized is formed in a part of the main body case, the periphery of the display window on the front surface side of the display window area. Display covered with light reflective film. According to this means, while the light amount can be secured by making the display window relatively large, the light can be stopped down by the light reflective film, and the sufficient light amount and clear light with little blur can be visually recognized from the outside. be able to.

(4) A light emitting element is built in the main body case,
In a display device (slave station unit 22 in the embodiment) in which a display window through which a light emitting state of the light emitting element can be visually recognized is formed in a part of the main body case, the display window forming surface of the main body case is formed so as to cover the display window. Attach the sheet, the sheet,
A display comprising: a light transmitting layer covering the entire display window; and a light reflecting layer covering only the periphery in the display window region. According to this means, the same advantages as those of the above means (3) can be obtained, and further, it is possible to prevent the entry of dust and the like from the display window, and to obtain the advantage that the seat can be easily attached.

(5) A plurality of solenoid valves whose flow paths are switched based on the operation of the solenoids are collectively arranged, and a control device for driving and controlling each of the solenoids (the slave station 6 or the slave station unit 22 in the embodiment). ), The control device includes a photocoupler with a built-in Zener diode, the photocoupler includes a light emitting element on the input side and a phototransistor on the output side, and the phototransistor includes a Zener diode. The solenoid is connected to control the on / off of the solenoid via the photocoupler with a built-in zener diode, and a surge voltage generated when the solenoid is turned off is cooperated with a zener diode and a phototransistor built in the photocoupler. Solenoid valve manifold De. With this configuration, there is an advantage that the response speed of the solenoid valve is increased by absorbing the surge voltage when the solenoid is turned off. Further, it is not necessary to separately prepare a surge voltage absorbing element or separately mount the element on the control board. As a result, it is possible to reduce the cost and space of the control device attached to the solenoid valve manifold. In addition, a dedicated circuit for absorbing surge voltage is not required, and improvement in noise resistance can be expected.

(6) In the means (5), the control device includes a serial / parallel conversion circuit for converting a serial signal transmitted from the outside into a parallel signal, and the parallel signal is input to the photocoupler with a built-in Zener diode. A solenoid valve manifold configured to be inputted to the side, and when the parallel signal is an ON signal, the light emitting element emits light and the phototransistor is turned on. According to this means, wiring can be reduced between the outside and the control device by a serial signal, and
There is an advantage that individual commands are facilitated by the parallel signal inside the solenoid valve manifold.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an entire solenoid valve manifold according to an embodiment.

FIG. 2 is a perspective view showing a state where a slave station is removed from the solenoid valve manifold.

FIG. 3 is a schematic circuit diagram showing an entire system including a number of solenoid valve manifolds.

FIG. 4 is a schematic circuit diagram showing a system of one solenoid valve manifold.

5A and 5B are partial cross-sectional views each showing a configuration around a display window of a slave station unit.

FIG. 6 is a perspective view showing a state where a slave station is removed from an electromagnetic valve manifold according to another embodiment.

FIG. 7 is a partial cross-sectional view showing a configuration around a display window of a slave station unit according to another embodiment.

8A and 8B are circuit diagrams each showing a photocoupler with a built-in Zener diode according to another embodiment.

FIG. 9 is a circuit diagram showing a photocoupler with a built-in Zener diode according to another embodiment.

[Explanation of symbols]

1 ... solenoid valve manifold as actuator, 2 ...
Manifold block, 5 ... solenoid valve, 6 ... slave station, 9 ... common supply port as common port, 10 ... common discharge port as common port, 11 ... first output port as port or supply / discharge port, 12 ... port Alternatively, a second output port as a supply / discharge port, 16 a solenoid as an electric drive means, 21 a pedestal as a mounting portion, 22 a slave station unit, 23 a storage space portion, 24 a terminal block box, 25 a connector , 26: guide recess as guide means, 28: guide groove as guide means, 30: screw hole, 31: through hole, 32: fixing screw as fixing member,
35 ... control board, 36 ... power supply connection stand as connection part, 3
7 ... Signal connection stand as connection part.

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Takato Matsuda 3005 Hayasaki, Kita-gaiyama, Komaki-shi, Aichi F-term (reference) 3K05 BB03 CC01 FF07 3H106 DA32 EE03 EE48 GB08 GC26 GC29 KK03 KK04 5H307 AA18 BB02 CC01 DD11 EE04 EE07 ES02 HH01 HH11

Claims (10)

[Claims] An actuator body is provided with a port to which an external pipe can be connected for at least one of input and output of a fluid, and a slave station transmits at least one of an external signal and a power supply to the actuator body. In a slave station-equipped actuator provided with a connection portion to which external wiring can be connected, the connection of the external pipe to the port and the connection of the external wiring to the connection portion are performed on the same surface side. Localized actuator. 2. An actuator main body is provided with a port to which an external pipe can be connected for at least one of fluid input and output, and a slave station transmits at least one of an external signal and a power supply to the actuator main body. In the actuator with a slave station provided with a connection portion to which an external wiring can be connected, the slave station includes a unitized slave station unit, the slave station unit is detachable from the actuator body, and a connection to the port is provided. An actuator with a slave station configured such that connection of an external pipe and attachment and detachment of the slave station unit are performed on the same surface side. 3. An actuator main body is provided with a port to which an external pipe can be connected for at least one of fluid input and output, and a slave station transmits at least one of an external signal and a power supply to the actuator main body. In the actuator with a slave station provided with a connection portion to which an external wiring can be connected, the slave station includes a unitized slave station unit, the slave station unit is detachable from the actuator body, and a connection to the port is provided. Connection of external piping,
A slave station-equipped actuator configured such that connection of external wiring to the connection part and attachment / detachment of the slave station unit are performed on the same surface side. 4. An actuator with a slave station having a slave station having a connection portion capable of connecting an external wiring to transmit at least one of an external signal and a power supply to the actuator body, wherein the slave station is unitized. A slave station unit, the slave station unit being detachable from the actuator body, connecting external wiring to the connection part,
An actuator with a slave station configured such that the attachment and detachment of the slave station unit is performed on the same surface side. 5. The actuator with a slave station according to claim 2, wherein the slave station includes a mounting portion on which the slave station unit is mounted, and the mounting portion is fixedly mounted on the actuator body. A connector connected to each other is provided on opposing surfaces of the mounting unit and the slave unit, and the slave unit is configured such that the connectors are connected to each other by attaching the slave unit to the mounting unit. Actuator. 6. The actuator with a slave station according to claim 5, wherein a storage space for housing the slave station unit is formed in the mounting portion, and wherein the slave station unit is housed in the storage space. An actuator with a slave station configured so that the mounting part and the slave station unit have a substantially rectangular parallelepiped shape. 7. The actuator with a slave station according to claim 5, wherein guide means for guiding the slave station unit in a detaching direction when the slave station unit is mounted on the mounting portion is provided. 8. The actuator with a slave station according to claim 5, further comprising a fixing member for fixing the slave station unit with the mounting portion, and fixing the slave station unit by the fixing member. Actuator with slave station configured to be performed on the surface side. 9. The actuator with a slave station according to claim 1, wherein the actuator body comprises:
An actuator with a slave station, comprising a plurality of solenoid valves arranged in a centralized manner, and having a supply / discharge port corresponding to each solenoid valve. 10. The actuator with a slave station according to claim 9, wherein the actuator body further includes a common flow path for supplying and discharging fluid to each solenoid valve, and further includes a common port for the common flow path. An actuator with a slave station configured such that connection of an external pipe to the common port is also performed on the same surface side.