JP2003139264A - Solenoid valve control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solenoid valve control device equipped with a safety device, a safety measures device or the like. SOLUTION: The solenoid valve control device 30 is formed into a manifold with solenoid units 34, 36, 38 and 40 each comprising an input unit 32, circuit parts 60 wherein solenoid valve drive parts 58, 62, 64 and 66 and desired circuit patterns are formed. The device further comprises an interlock unit 42 for interlockingly controlling all of the solenoid valve units 34, 36, 38 and 40 between an output terminal group 44 of the input unit 32 and an input terminal group 52 of the solenoid valve unit 34.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solenoid valve control device equipped with a safety device or safety measures.

[0002]

2. Description of the Related Art Conventionally, in a manifold-type solenoid valve control device, a structure is known in which a plurality of solenoid valve units each including an input / output terminal and a circuit portion having a circuit pattern are connected.

As a conventional technique of this kind, there is a utility model registration No. 2511402.

As shown in FIG. 9, in the solenoid valve control device 1 according to this prior art, for example, the solenoid valve unit 2,
3 and 4 are connected to form a manifold together with the input unit 5.

In this case, the control signals input1 to inputN (here, N represents an arbitrary natural number, meaning Nth) input from the input unit 5 are input via the input terminal group 6 to the solenoid valve unit. Introduced in 2. In the solenoid valve unit 2, the control signal in corresponding to the two solenoid valve solenoids 8 provided in the solenoid valve drive unit 7 is provided.
Only put1 and input2 are taken in and drive the solenoid valves (not shown) associated with each of the solenoid valve solenoids 8. The symbol com shown in the input unit 5 represents a common signal.

Next, control signals input3 to input
As in the circuit section 9, tN is derived to the output terminal group 10 by gradually shifting the circuit pattern in the arrangement direction.

Next, in the solenoid valve unit 3 and the solenoid valve unit 4, as in the case of the solenoid valve unit 2 described above, the solenoid valve drive section 11 and the solenoid valve solenoid 8 provided in the solenoid valve drive section 12, respectively. Only the control signals input3 and input4 and input5 corresponding to the above are taken in to drive the solenoid valves (not shown) respectively associated with the solenoid valve solenoids 8.

[0008]

With the increasing awareness of safety by users, there is a demand for a solenoid valve control device provided with a safety device or safety measures for a solenoid valve and its related products.

However, the solenoid valve control device 1 according to the above-mentioned conventional technique is not provided with a safety device or safety measures.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a solenoid valve control device equipped with a safety device or safety measures.

[0011]

According to the present invention, there is provided a solenoid valve control device having a plurality of manifolded solenoid valve units and an input unit for deriving a control signal to each of the solenoid valve units. And an interlock unit that performs interlock control on all of the solenoid valve units.

In this case, the interlock unit is
When two solenoid valve solenoids are provided in one of the solenoid valve units, one of the solenoid valve solenoids is operated. Further, the interlock unit is configured such that, when one solenoid valve solenoid is provided in one of the solenoid valve units, the solenoid provided in either one of the adjacent solenoid valve units. Only the valve solenoid is operated. Further, an interlock unit for performing interlock control on all of the solenoid valve units is provided at the end of the solenoid valve unit on the output terminal group side.

Further, the present invention is a solenoid valve control device having a plurality of manifolded solenoid valve units and an input unit for deriving a control signal to each of the solenoid valve units, wherein an output terminal of the solenoid valve unit is provided. An interlock unit for performing interlock control on all of the solenoid valve units is provided at a side end portion.

In this case, the interlock unit is
When two solenoid valve solenoids are provided in one of the solenoid valve units, one of the solenoid valve solenoids is operated. Further, the interlock unit is configured such that, when one solenoid valve solenoid is provided in one of the solenoid valve units, the solenoid provided in either one of the adjacent solenoid valve units. Only the valve solenoid is operated.

According to the present invention, in a manifold-type solenoid valve unit, the solenoid valve is provided between the input unit and the input terminal group of the solenoid valve unit and / or at the output terminal group side end portion of the solenoid valve unit. Since an interlock unit that performs interlock control for all units is provided, it is possible to take safety measures for each solenoid valve corresponding to the solenoid valve unit and all of its related devices. Become.

Further, since it is not necessary to provide a device or circuit for taking safety measures to the outside, the external wiring can be simplified.

Further, since the interlock unit is provided with the control logic of the solenoid valve in advance and incorporates the related circuit pattern, the programming work in the external control device (for example, sequencer etc.) is omitted. You can

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of a solenoid valve control device according to the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows a system configuration diagram of a solenoid valve control device 30 according to the first embodiment of the present invention. Note that FIG.
3 and 4 are partial detailed explanatory diagrams of the solenoid valve control device 30 shown in FIG.

This solenoid valve control device 30 includes an input unit 32 and solenoid valve units 34, 3 which are manifolded.
6, 38 and 40 and an interlock unit 42.

The input unit 32 is, as shown in FIG. 2, a control signal in from an external control device (not shown) (for example, a sequencer, a serial / parallel conversion unit, etc.).
A function to introduce the control signals input1 to inputN to the interlock unit 42 connected to the output terminal group 44 by introducing put1 to inputN (where N represents an arbitrary natural number and means Nth). Have. The symbol com in the input unit 32 indicates a common signal, and the symbols + Rcom and −Rcom indicate control signals for the mechanical relay Rcom.

As shown in FIG. 2, the interlock unit 42 includes an input terminal group 46, an output terminal group 48, mechanical relays R1 to RN and Rcom (these mechanical relays R1 to RN and Rcom are coils and contact points). And an interlock controller 50 in which a desired circuit pattern is formed.

The interlock unit 42 is connected between the input unit 32 and an electromagnetic valve unit (an electromagnetic valve unit 34 in FIGS. 1 and 2) to be interlock-controlled, which will be described later.

As shown in FIG. 2, the input terminal group 46 includes terminals a1 to aN and a common signal terminal com1.
And the terminals com2 and com3 for the control signals + Rcom and −Rcom of the mechanical relay Rcom. The output terminal group 48 has a terminal com1 common to the terminals b1 to bN and the input terminal group 46. 1 to 3, the common signal terminal com
Although only one 1 is shown, the number of these terminals can be set arbitrarily.

In the interlock control section 50, mechanical relays R1 to RN are provided, and a terminal a of the input terminal group 46 is provided.
1 to aN control signals input1 to i introduced via
Interlock control is performed on nputN. And
It has a function of deriving an interlock-controlled signal to the terminals b1 to bN of the output terminal group 48 according to a circuit pattern formed in a desired circuit.

The mechanical relay Rcom performs interlock control of the common signal com based on the control signals + Rcom and -Rcom. The mechanical relay Rcom may be omitted by the control logic of the interlock control unit 50 or the control logic of the solenoid valve units 34, 36, 38 and 40 to be interlock-controlled.

The solenoid valve unit 34 includes an input terminal group 52.
An output terminal group 54, a solenoid valve drive section 58 provided with a solenoid valve solenoid 56, and a circuit section 60 having a desired circuit pattern formed therein.

This solenoid valve unit 34 includes an input terminal group 5
2 through the output terminal group 48 of the interlock unit 42
Connected to.

As shown in FIG. 2, the input terminal group 52 includes terminals a1 to aN and a common signal terminal com1.
have. The output terminal group 54 includes terminals b1 to b.
The N terminal and the input terminal group 52 have a common terminal com1. The input terminal group 52 and the output terminal group 54 are commonly used for any solenoid valve unit.
Although only one common signal terminal com1 is shown in FIGS. 1 to 3, the number of these terminals can be set arbitrarily.

The solenoid valve drive unit 58 is provided with two solenoid valve solenoids 56 and is wired with a common signal for one system.
The interlock control section 50 has a function of driving an unillustrated solenoid valve associated with each of the solenoid valve solenoids 56, based on the control signals input1 and input2 subjected to interlock control.

The circuit section 60 receives the control signals input1 to inputN introduced via the input terminal group 52 by means of a circuit formed in a desired pattern, and the solenoid valve driving section 58.
And a function of leading to the output terminal group 54.

At this time, the control signals input1 and in
A circuit pattern corresponding to put2 is formed toward the solenoid valve drive unit 58. Then, the other control signal inpu
The circuit pattern corresponding to t3 to inputN, except for the control signals input1 and input2, is shifted stepwise in the array direction, and the terminal b of the output terminal group 54 is
1 to bN-2. In addition, "-2" is
It means the number of terminals shifted in the arrangement direction in the output terminal group 54.

By doing so, an arbitrary control signal (for example, inputN-) corresponding to each solenoid valve solenoid 56 provided in any solenoid valve unit is provided.
1 and inputN) are derived by being shifted stepwise, so that the terminals a1 and a2 are uniquely determined in the input terminal group 52.

The solenoid valve units 36, 38 and 4
0 basically has the same configuration as the solenoid valve unit 34. However, some changes are made based on the number of solenoid valve solenoids 56 and the wiring path of the common signal.

That is, in the solenoid valve unit 36, two solenoid valve solenoids 56 are provided, and a solenoid valve drive section 62 in which two-system common signals are wired is provided. Also,
In the solenoid valve units 38 and 40, one solenoid valve solenoid 56 is provided, and solenoid valve drive parts 64 and 66 in which one-system common signal is wired are provided, respectively.

Therefore, the solenoid valve control device 3 shown in FIG.
In the case of 0, the solenoid valve units 38 and 40 are substantially the same solenoid valve units.

The solenoid valve control device 30 according to the first embodiment of the present invention is basically constructed as described above. Next, its operation and action and effect will be explained.

First, each control signal input1 is based on a program or an operation command of an external control device (not shown).
~ InputN is introduced into the input unit 32.

In the interlock unit 42, the control signals input1 to i introduced via the input unit 32 are input.
The interlock control unit 50 interlock-controls nputN. Then, the interlock-controlled control signals input1 to inputN are passed through the output terminal group 48, and the corresponding solenoid valve units 34 and 3 are output.
6, 38 and 40.

Next, each solenoid valve unit 34, 36, 3
In 8 and 40, the solenoid valve solenoids 56 provided in the corresponding solenoid valve drive units 58, 62, 64 and 66 are operated based on the interlock-controlled control signals input1 to inputN. Then, not-illustrated solenoid valves associated with each of the solenoid valve solenoids 56 are driven.

Specifically, in the solenoid valve unit 34, the mechanical relay R provided in the interlock control section 50 is used.
Based on the control logic of 1 and R2, only one of the control signals input1 or input2 is introduced to operate one of the solenoid valve solenoids 56 provided in the solenoid valve drive unit 58. That is, the two solenoid valve solenoids 56 provided in the solenoid valve drive section 58 are in an interlock controlled relationship.

In the solenoid valve unit 36, as in the case of the solenoid valve unit 34, the two solenoid valve solenoids 56 provided in the solenoid valve drive section 62 are in an interlock control relationship.

Further, in the solenoid valve units 38 and 40,
Based on the control logic of the mechanical relays R5 and R6 provided in the interlock control unit 50, only one of the control signals input5 or input6 is introduced and provided in either one of the solenoid valve drive units 64 or 66. The solenoid valve solenoid 56 is operated. That is, the solenoid valve units 38 and 40 are in a relationship of interlock control.

The mechanical relay Rcom in the interlock control unit 50 is based on the control signals + Rcom and -Rcom introduced via the input unit 32.
Interlock control is performed on the common signal com. In this case, it is applied to the entire solenoid valve control device 30 when, for example, collective interlock control is required in an emergency such as an emergency stop.

As described above, the two solenoid valve solenoids 56 provided in one of the arbitrary solenoid valve units or the two solenoid valve units provided with one solenoid valve solenoid 56 are It is possible to avoid operating at the same time.

For example, one of the solenoid valve solenoids 56 is operating (in the case of the solenoid valve units 34 and 36) or one of the solenoid valve units is operating (in the case of the solenoid valve units 38 and 40). Even if an abnormal signal is introduced into the other solenoid valve solenoid 56 or the other solenoid valve unit due to disturbance such as noise, malfunction due to this abnormal signal can be avoided.

In this case, the solenoid valve solenoid 5
The present invention can be applied to the case where the fluid to be controlled by the solenoid valves (not shown) associated with each of 6 is inconvenient such that the fluid is mixed when the solenoid valves are simultaneously driven.

Further, since the common signal com is interlock-controlled, the electromagnetic valve control device 30 as a whole can be collectively subjected to interlock control in an emergency such as an emergency stop.

Next, an electromagnetic valve control device 70 according to a second embodiment of the present invention will be described with reference to FIGS. 5 and 6 are partial detailed explanatory diagrams of the solenoid valve control device 70 shown in FIG.

The same components as those of the solenoid valve control device 30 according to the first embodiment described above are designated by the same reference numerals, and detailed description thereof will be omitted below.

The solenoid valve control device 70 is manifolded by replacing the solenoid valve units 34, 36, 38 and 40 in the solenoid valve control device 30 with solenoid valve units 72, 74, 76 and 78, respectively, and further forming an interface. The lock unit 80 is included.

The solenoid valve units 72, 74, 76 and 78 are basically the solenoid valve units 34, 3 described above.
6, 38 and 40. However, the solenoid valve units 72, 74, 76 and 78
Signals derived from the solenoid valve drive units 58, 62, 64 and 66 respectively provided in the
It is shown as com1 to Scom5. ) The wiring route is slightly modified.

Specifically, in the circuit section 82 of the solenoid valve unit 72, the signal Sco derived from the solenoid valve drive section 58 is output.
A circuit pattern of m1 is formed toward the terminal bN of the output terminal group 54. Then, the signal Scom1 is introduced into the solenoid valve unit 74 via the terminal bN and the terminal aN of the input terminal group 52 of the solenoid valve unit 74.

Next, in the circuit section 84 of the solenoid valve unit 74, the signals Scom2 and Scom3 derived from the solenoid valve drive section 62 are supplied to the terminals bN and b of the output terminal group 54, respectively.
It is formed toward N-1. Then, these signals Sc
om2 and Scom3 are terminals bN and bN-1, respectively.
And the terminal aN of the input terminal group 52 of the solenoid valve unit 76
And aN-1 to be introduced into the solenoid valve unit 76, respectively.

At this time, in the solenoid valve unit 74, the introduced signal Scom1 has a circuit pattern formed by being shifted in the arrangement direction in consideration of the two circuit patterns of the signals Scom2 and Scom3. It is led to the terminal bN-2. Similarly, also in the solenoid valve unit 76, in consideration of the circuit pattern of the signal Scom4, the signals Scom1 and Scom2 and Scom3 introduced from the solenoid valve unit 74 of the preceding stage are respectively shifted by the circuit pattern formed in the arrangement direction. It is led to the terminals bN-1 to bN-3 of the output terminal group 54. In addition, also in the solenoid valve unit 78, the signal Sco
Based on the circuit pattern of m5, the signal Sco
The circuit pattern of m1 to Scom4 is operated.

By doing so, these signals Scom1 to Scom4 are transmitted to the solenoid valve units 74 and 7 respectively.
6 and 78 are respectively shifted stepwise in the arrangement direction and led out to the terminals bN-1 to bN-4 of the output terminal group 54 of the solenoid valve unit 78. In FIG. 6, this "bN-4" is shown corresponding to "b8". Then, the signals Scom1 to Scom4 are
It is introduced into the interlock unit 80 via terminals aN-1 to aN-4 corresponding to the respective input terminal groups 52 provided in the interlock unit 80 described later. The signal Scom5 derived from the solenoid valve drive unit 66 of the solenoid valve unit 78 is directly introduced into the interlock unit 80 via the terminal aN of the input terminal group 52.

From the above, an arbitrary signal (for example, Scom1 to ScomN) derived from an electromagnetic valve drive portion provided in an arbitrary solenoid valve unit is derived while being shifted stepwise, so that the interlock unit is obtained. The terminal arrangement in the input terminal group 52 provided in 80 is uniquely determined.

As shown in FIG. 6, the interlock unit 80 includes an input terminal group 52, an external connection terminal group 88, and mechanical relays Re1 to ReN (these mechanical relays Re1 to ReN are composed of coils and contacts). And an interlock controller 86 in which a desired circuit pattern is formed.

This interlock unit 80 is provided on the output terminal group 54 side of the last solenoid valve unit, that is, in FIG.
In the case of, the output terminal group 54 of the solenoid valve unit 78 is connected.

The interlock control unit 86 includes an external input device (not shown) (for example, a position sensor for detecting the position of an area sensor, a cylinder, an actuator, or the like,
An input signal is introduced from a fluid overpressure detection sensor (controlled by a solenoid valve) or the like through the external connection terminal group 88. Then, based on the input signal, the terminals a1 to
Signals introduced via aN (for example, Scom1-S
comN) for interlock control.

Here, the contact sides of the mechanical relays Re1 to ReN are commonly connected to the terminal com1 of the input terminal group 52 provided in the interlock unit 80, and the electromagnetic valve units 72, 74, 76 and 78 are interlocked with each other. It is connected to the common signal com of the input unit 32 via the lock unit 42.

That is, the interlock control section 86 controls the control signal inpu derived from the input unit 32.
t1 to inputN are solenoid valve units 72, 74,
Solenoid valve drive parts 58, 62 provided at 76 and 78,
Via 64 and 66, the solenoid valve drive units 58, 62, 6
Signals corresponding to 4 and 66 (for example, Scom1-S
comN) and is interlock-controlled on the common signal com side.

Solenoid valve control device 7 according to the second embodiment
In the case of 0, the interlock control can be individually performed on the common signal com side of the solenoid valve control device 30 based on the input signal introduced from the external input device. It will be possible.

In this sense, the interlock unit 80 can be called a common signal interlock unit. On the other hand, the interlock unit 42 described above can be referred to as a control signal interlock unit.

Next, an electromagnetic valve control device 90 according to the third embodiment of the present invention will be described with reference to FIG.

This electromagnetic valve control device 90 basically includes the interlock unit 4 in the electromagnetic valve control device 70.
2 is omitted.

In this solenoid valve control device 90, in the input unit 32 shown in FIG. 5, instead of the output terminal group 44, an output terminal group 54 or an output terminal group compatible with this output terminal group 54 is provided. . The input unit 32 is connected to the solenoid valve unit 72 via the output terminal group 54.
Connected to.

In this case, the control signals input1 to inputN introduced from an external control device (not shown) and derived via the input unit 32 are provided to the corresponding solenoid valve units 72, 74, 76 and 78, respectively. Introduced into the drives 58, 62, 64 and 66.
Therefore, the control signals + Rcom and -Rc in FIG.
om is unnecessary. Then, as in the case of the solenoid valve control device 70, signals (for example, Scom1 to Sco) derived from the solenoid valve drive units 58, 62, 64 and 66 are generated.
mN) are introduced into the interlock unit 80, and are interlock-controlled on the common signal com side.

Next, a modification of the interlock unit 42 will be described with reference to FIGS. 8 and 9.

The interlock unit 92 shown in FIG.
The external connection terminal group 94 is provided for the interlock unit 42, and the wiring path is slightly modified. In this case, based on the individual input signals introduced from the external connection terminal group 94 and the control logic of the interlock control unit 96, the respective control signals input1 to inputp are input.
It is applied when interlock control is applied to utN.

The interlock unit 98 shown in FIG.
In the interlock control unit 100, the control logic of the interlock control unit 96 is slightly modified with respect to the interlock unit 92. In this case, it is applied when the interlock control is individually applied to each of the control signals input1 to inputN based on the individual input signal introduced from the external connection terminal group 94.

In addition to the interlock units 92 and 98, various modifications can be applied in consideration of the control logic of interlock control and / or an input signal introduced from the outside.

Further, in the solenoid valve control device 90,
The interlock unit 92 or 98 may be applied instead of the interlock unit 80.

Further, in the embodiment of the present invention, in each interlock control section 50, 86, 96 and 100, mechanical relays R1 to RN, Rcom and Re are provided.
The case where 1 to ReN are adopted is illustrated. It goes without saying that semiconductor switches, solid state relays, general logic circuits, etc. may be adopted for the interlock control units 50, 86, 96 and 100.

As described above, according to the solenoid valve control devices 30, 70 and 90 according to the present embodiment, the solenoid valve units 34, 36, 38 and 40 or 72, 74, 76 and 78 that are manifolded. Since the interlock control is performed for all of the above, all solenoid valves and their related devices not shown are all based on the control logic of the interlock control and / or the input signal introduced from the outside. It is possible to take safety measures against.

[0076]

According to the present invention, the following effects can be obtained.

That is, in the manifolded solenoid valve unit, all of the solenoid valve units are provided between the input unit and the input terminal group of the solenoid valve unit and / or at the output terminal group side end of the solenoid valve unit. Since an interlock unit for performing interlock control is provided, it is possible to take safety measures for each solenoid valve corresponding to the solenoid valve unit and all of its associated devices.

Further, since it is not necessary to provide a device or a circuit for taking safety measures to the outside, the external wiring can be simplified.

Further, in the interlock unit,
Since the control logic of the solenoid valve is provided in advance and the related circuit pattern is incorporated, the programming work in the external control device (for example, sequencer etc.) can be omitted.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of a solenoid valve control device according to a first embodiment of the present invention.

2 is a partial detailed explanatory view up to a solenoid valve unit (34) of the solenoid valve control device shown in FIG.

3 is a partial detailed explanatory view up to a solenoid valve unit (40) of the solenoid valve control device shown in FIG.

FIG. 4 is a system configuration diagram of a solenoid valve control device according to a second embodiment of the present invention.

5 is a partial detailed explanatory view up to a solenoid valve unit (72) of the solenoid valve control device shown in FIG.

6 is a partial detailed explanatory view up to an interlock unit (80) of the solenoid valve control device shown in FIG.

FIG. 7 is a system configuration diagram of a solenoid valve control device according to a third embodiment of the present invention.

FIG. 8 is a system configuration diagram showing a first modified example of the interlock unit according to the embodiment of the present invention.

FIG. 9 is a system configuration diagram showing a second modified example of the interlock unit according to the embodiment of the present invention.

FIG. 10 is a system configuration diagram of a solenoid valve control device according to a conventional technique.

[Explanation of symbols]

30, 70, 90 ... Electromagnetic valve control device 32 ... Input units 34, 36, 38, 40, 72, 74, 76, 78 ... Electromagnetic valve units 42, 80, 92, 98 ... Interlock units 44, 48, 54 ... Output terminal group 46, 52 ... Input terminal group 50, 86, 96, 100 ... Interlock control sections 58, 62, 64, 66 ... Electromagnetic valve driving sections 60, 82, 84 ... Circuit section

Claims (7)

[Claims] 1. A solenoid valve control device having a plurality of manifolded solenoid valve units and an input unit for deriving a control signal to each of the solenoid valve units, wherein the input unit and the solenoid valve unit are provided. An electromagnetic valve control device further comprising an interlock unit for performing interlock control on all of the electromagnetic valve units. 2. The solenoid valve control device according to claim 1, wherein the interlock unit is one of the solenoid valve units.
When two solenoid valve solenoids are provided for one solenoid valve, one solenoid valve solenoid is operated. 3. The solenoid valve control device according to claim 1, wherein the interlock unit is one of the solenoid valve units.
When one solenoid valve solenoid is provided for one solenoid valve, only the solenoid valve solenoid provided for one of the adjacent solenoid valve units is operated. Solenoid valve control device. 4. The solenoid valve control device according to claim 1, wherein an interlock control for all of the solenoid valve units is provided at an output terminal group side end of the solenoid valve unit. An electromagnetic valve control device comprising an interlock unit for performing. 5. A solenoid valve control device having a plurality of manifolded solenoid valve units and an input unit for deriving a control signal to each of the solenoid valve units, wherein an output terminal side end of the solenoid valve unit is provided. An electromagnetic valve control device comprising an interlock unit for performing interlock control on all of the electromagnetic valve units. 6. The solenoid valve control device according to claim 5, wherein the interlock unit is one of the solenoid valve units.
When two solenoid valve solenoids are provided for one solenoid valve, one solenoid valve solenoid is operated. 7. The solenoid valve control device according to claim 5, wherein the interlock unit is one of the solenoid valve units.
When one solenoid valve solenoid is provided for one solenoid valve, only the solenoid valve solenoid provided for one of the adjacent solenoid valve units is operated. Solenoid valve control device.