CN106195350A - Safe duplex electromagnetic valve - Google Patents
Safe duplex electromagnetic valve Download PDFInfo
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- CN106195350A CN106195350A CN201610882233.8A CN201610882233A CN106195350A CN 106195350 A CN106195350 A CN 106195350A CN 201610882233 A CN201610882233 A CN 201610882233A CN 106195350 A CN106195350 A CN 106195350A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/0624—Lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The present invention relates to a kind of safe duplex electromagnetic valve, including the main valve assembly of two groups of two-bit triplet electromagnetic valve compositions, pilot solenoid valve is installed by guide's valve seat in main valve assembly top；Described main valve assembly includes main valve body, and main valve body arranges air inlet, gas outlet and air vent, and the inside of main valve body is provided with valve pocket, arranges valve core of main valve in valve pocket, and valve core of main valve arranges blocking and lower blocking, lower is connected back-moving spring between blocking with main valve body；It is characterized in that: the first air-capacitor chamber and the second air-capacitor chamber are set inside described guide's valve seat, first air-capacitor chamber of side connects with the inlet plenum of the two-bit triplet electromagnetic valve of opposite side, second air-capacitor chamber of opposite side connects with the inlet plenum of the two-bit triplet electromagnetic valve of side, and the first air-capacitor chamber connects with guide's air inlet of corresponding pilot solenoid valve with the second air-capacitor chamber.The present invention, it can be avoided that pilot control source of the gas is disturbed by main valve switching moments generation Fructus Liquidambaris phenomenon, eliminates wrong report fault-signal phenomenon and unsafety failure.
Description
Technical field
The present invention relates to a kind of safe duplex electromagnetic valve, a kind of punching machine clutch being suitable for manual feeding
The safe duplex electromagnetic valve that device, brake control.
Background technology
Mechanical press safe duplex electromagnetic valve is to control the one that frictional pressure brake, clutch normally work
The pneumatic functional part of safety.Along with GB GB27607-2011 " punching machine safety specifications " passes through mark and performs, hands
The security performance grade of dynamic operation punching machine should reach EN ISO 13849-1:2008/AC:2009, GB/T 16855.13
(PL e, Cat 4) standard.
In prior art, safety dual valve disclosed in Chinese patent ZL201310454582.6, including main valve assembly and after
Valve component, main valve assembly includes two groups of two-bit triplet electromagnetic valves, and often pilot solenoid valve is installed on group two-bit triplet electromagnetic valve top；
Described main valve assembly includes main valve body, sets two valve pockets inside main valve body, the discharge chamber in two valve pockets and the parallel nothing of output cavity
Obstruction is linked together, and the most also divides into two independent inlet chambers, and two inlet chambers are by air inlet restriction mouth and this safe duplex
The air inlet of valve is connected in parallel, and the other end of two inlet chambers is through constant throttling orifice plug and the first air-capacitor purpose where and the second air-capacitor
Chamber is connected in parallel；It addition, arrange valve core of main valve in valve pocket, valve core of main valve arranges blocking and lower blocking, lower blocking and master
Main valve back-moving spring is connected between valve body；Described rear valve base assembly includes rear valve base, and rear valve base sets air inlet and air vent,
First guide's air-capacitor chamber and second guide's air-capacitor chamber is set inside rear valve base；Entering of the two-bit triplet electromagnetic valve of described main valve body side
Air cavity and the connection of first guide's air-capacitor chamber, first guide's air-capacitor chamber connects with the pilot solenoid valve of opposite side；Described main valve body is another
The inlet chamber of the two-bit triplet electromagnetic valve of side and the connection of second guide's air-capacitor chamber, second guide's air-capacitor chamber and the first conduction of side
Magnet valve connects；That is, the air inlet of first guide's air-capacitor chamber, second guide's air-capacitor chamber and two row conduction magnet valves is by two runners
Interconnection, with two main valve inlet chambers by two constant throttling orifice plug parallel joins.
Two guide's air-capacitor chambeies are arranged on rear valve base by this safety dual valve, make structure compacter, reduce duplex
The volume of valve.But some defects and undesirable place also occur through use for many years, main cause is this safety dual valve
Guide's air-capacitor chamber is arranged on rear valve base, through first guide's air-capacitor chamber and second guide's air-capacitor chamber and main valve intake valve port distance
Close, although to have constant throttling orifice plug to stop, because orifice plate effect decreases the restriction effect of constant throttling orifice plug, when safety dual valve leads to
Electricity is opened moment generation Fructus Liquidambaris phenomenon and pilot control source of the gas is carried out the biggest interference.It addition, the two of this safety dual valve
Guide's air inlet is more than first guide's air-capacitor chamber and second to the air damping in first guide's air-capacitor chamber and second guide's air-capacitor chamber
Guide's air-capacitor chamber, to the damping of intake valve port, makes safety dual valve after powered up, and two valve core of main valve actions are relatively slow, often go out
Now unsafety failure after energising, and the dispersion of movement time is relatively big, because of two guides, to intersect observing and controlling the sensitiveest, this safe duplex
The asynchronous commutation ability of valve is very poor, often reports fault-signal by mistake, and therefore safely but action is unreliable for such safety dual valve.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of safe duplex electromagnetic valve, by guide
Air-capacitor chamber is arranged on guide's valve seat away from intake valve port, it is to avoid the moment of main valve switch produces Fructus Liquidambaris phenomenon and controls guide
Source of the gas processed disturbs, and eliminates wrong report fault-signal phenomenon and unsafety failure.
The technical scheme provided according to the present invention, described safe duplex electromagnetic valve, including by two groups of two-bit triplet electromagnetic valves
The main valve assembly of composition, installs pilot solenoid valve on the top often organizing two-bit triplet electromagnetic valve by guide's valve seat；It is characterized in that:
Described main valve assembly includes main valve body, arranges air inlet IN, gas outlet OUT and air vent EXIT, at main valve body on main valve body
Inside be provided with valve pocket and inlet plenum, valve pocket is made up of the inlet chamber being distributed from bottom to top, output cavity and discharge chamber, inlet chamber bag
Include right side single valve inlet chamber and left side single valve inlet chamber；Described air inlet IN connects inlet plenum, gas outlet OUT and output cavity even
Logical, air vent EXIT connects with discharge chamber；Described inlet plenum and right side single valve inlet chamber, left side single valve inlet chamber are respectively by the right side
Single valve air inlet restriction hole, side, the connection of single valve air inlet restriction hole, left side, right side single valve inlet chamber, left side single valve inlet chamber and output cavity
Being connected by right side single valve intake valve port, left side single valve intake valve port respectively, output cavity and discharge chamber are by right side single valve aerofluxus
Valve port, left side single valve intake valve port connect；The valve core of main valve of two groups of two-bit triplet electromagnetic valves is set in described valve pocket, at main valve
Blocking and lower blocking it is set on spool, lower between blocking with main valve body, is connected main valve back-moving spring；At described guide's valve seat
It is respectively symmetrically about inside and the first corresponding with two pilot solenoid valves respectively air-capacitor chamber and the second air-capacitor chamber are set；Described main valve
Internal left side single valve inlet chamber detects flow passage, the right side in main valve body with the second air-capacitor chamber on right side by the first air inlet
Single valve inlet chamber detects flow passage with the first air-capacitor chamber by the second air inlet with left side；Described first air-capacitor chamber and the second gas
The cavity volume left side guide's air inlet in guide's valve seat respectively, right side guide's air inlet and the guide of the upper left right both sides of guide's valve seat
Guide's air inlet connection of electromagnetic valve；Single valve spool control room on the left of being formed between the top and main valve body of described valve core of main valve
With right side single valve spool control room, left side single valve spool control room and right side single valve spool control room respectively by guide's valve seat
Left side pilot control opening, the pilot output port of two pilot solenoid valves of right side pilot control opening and left and right connects.
Further, described first air inlet detection runner by guide's air inlet restriction hole, left side, left side guide's source of the gas introduction hole,
Left side guide's air inlet vertical core, the first air inlet runner, the second air-capacitor air inlet are constituted；Described second air inlet detection runner is by right side first
Lead guide's air inlet vertical core, the second air inlet runner, the first air-capacitor air inlet structure on the right side of air inlet restriction hole, right side guide's source of the gas introduction hole
Become；Described first air inlet runner and the second air inlet runner are arranged in a crossed manner.
Further, bottom end cover is set in the bottom of described valve pocket, is tightly connected between bottom end cover and valve pocket.
Further, the bottom end cover bottom two groups of valve pockets of described main valve body is respectively mounted the first proximity switch and
Two proximity switches.
Safety dual valve of the present invention has the advantage that
(1) guide's air-capacitor chamber is arranged on guide's valve seat by the present invention, away from intake valve port, greatly reduces the first air-capacitor
Chamber, the second air-capacitor chamber to valve core of main valve control the air damping in chamber, add the first air-capacitor chamber, the permanent throttling in the second air-capacitor chamber to two
The air damping in hole, weaken the orifice plate effect of constant throttling orifice, it is to avoid the moment of main valve switch produces Fructus Liquidambaris phenomenon to elder generation
Lead control source of the gas to disturb；
(2) improve the reliability of this safety dual valve action, improve this safety dual valve pilot control source of the gas to two masters
The intersection prosecution performance of valve core, improves the asynchronous commutation ability of safety dual valve；
(3) movement time is discrete relatively small, the dispersion reducing safety dual valve commutating period for improving at a high speed, heavy duty machine
Certain basis is established in the control of tool forcing press；
It is normal that (4) two guides intersect observing and controlling, conventional eliminates wrong report fault-signal phenomenon and unsafety failure.
Accompanying drawing explanation
Fig. 1 is the structural representation of safe duplex electromagnetic valve of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
Fig. 4 is the top view of Fig. 1.
Fig. 5 is the structural representation of main valve assembly of the present invention.
Fig. 6 is the left view of Fig. 5.
Fig. 7 is the top view of Fig. 5.
Fig. 8 is the C-C sectional view of Fig. 4.
Fig. 9 is the D-D sectional view of Fig. 4.
Figure 10 is the schematic diagram of safe duplex electromagnetic valve of the present invention.
Detailed description of the invention
Below in conjunction with concrete accompanying drawing, the invention will be further described.
Shown in Fig. 1～Figure 10: as described in safe duplex electromagnetic valve include main valve assembly 1, guide's valve seat 2, pilot solenoid valve
3, first proximity switch the 4, second proximity switch 5, air inlet IN, gas outlet OUT, air vent EXIT, main valve body 1-1, main valve valve
Core 1-5, upper blocking 1-6, lower blocking 1-7, bottom end cover 1-8, main valve back-moving spring 1-9, inlet plenum 1-a, right side single valve inlet chamber
1-b, left side single valve inlet chamber 1-c, single valve air inlet restriction hole, left side 1-d, single valve air inlet restriction hole, right side 1-e, left side single valve enter
Valve port while 1-h, right side single valve intake valve port 1-i, output cavity 1-j, right side single valve exhaust valve port 1-k, left side single valve drain tap
1-m, discharge chamber 1-n, right side single valve spool control room 1-p, left side single valve spool control room 1-q, left side pilot air introduction hole
1-r, guide's air inlet restriction hole, left side 1-s, right side guide's source of the gas introduction hole 1-v, guide's air inlet restriction hole, left side 1-w, the first gas
Cavity volume 2-a, the second air-capacitor chamber 2-b, the second air-capacitor air inlet 2-c, the first air-capacitor air inlet 2-d, right side guide air inlet 2-e,
Right side pilot control opening 2-f, left side guide air inlet vertical core 2-g, the first air inlet runner 2-h, the second air inlet runner 2-i, left side are first
Lead air inlet 2-o, left side pilot control opening 2-t, right side guide air inlet vertical core 2-u etc..
Due to first guide's air-capacitor chamber of safety dual valve and second guide's air-capacitor chamber and main valve intake valve in prior art
Mouth is apart from close, although have constant throttling orifice plug to stop, because orifice plate effect decreases the restriction effect of constant throttling orifice plug, when safety is double
Connection valve energising is opened moment generation Fructus Liquidambaris phenomenon and pilot control source of the gas is produced the biggest interference.It addition, prior art is pacified
Two guide's air inlets of full dual valve are first more than first to the air damping in first guide's air-capacitor chamber and second guide's air-capacitor chamber
Inducing QI cavity volume and second guide's air-capacitor chamber, to the damping of intake valve port, make safety dual valve after powered up, and two valve core of main valve move
Make relatively slow, unsafety failure after energising often occurs, and movement time is discrete from relatively big, because two guides intersect observing and controlling too
Sensitive, the asynchronous commutation ability of this safety dual valve is very poor, often reports fault-signal, therefore such safety dual valve safety by mistake,
But action is unreliable.In order to avoid drawbacks described above, guide's air-capacitor chamber is arranged on guide by safe duplex electromagnetic valve of the present invention
Away from air inlet IN on valve seat, it is to avoid the moment of main valve switch produces Fructus Liquidambaris phenomenon and disturbs pilot control source of the gas,
Specifically include following structure:
As shown in Figure 1 to 4, safe duplex electromagnetic valve of the present invention, including the master being made up of two groups of two-bit triplet electromagnetic valves
Valve module 1, installs pilot solenoid valve 3 on the top often organizing two-bit triplet electromagnetic valve by guide's valve seat 2；
As shown in Fig. 5～Fig. 7, described main valve assembly 1 includes main valve body 1-1, arranges air inlet IN, gives vent to anger on main valve body 1-1
Mouth OUT and air vent EXIT, is provided with valve pocket and inlet plenum 1-a in the inside of main valve body 1-1, and valve pocket is by entering of being distributed from bottom to top
Air cavity, output cavity 1-j and discharge chamber 1-n composition, inlet chamber includes right side single valve inlet chamber 1-b and left side single valve inlet chamber 1-c；
Described air inlet IN connects inlet plenum 1-a, gas outlet OUT and connects with output cavity 1-j, and air vent EXIT connects with discharge chamber 1-n；
Described inlet plenum 1-a and right side single valve inlet chamber 1-b, left side single valve inlet chamber 1-c are respectively by single valve air inlet restriction hole, right side
1-e, single valve air inlet restriction hole, left side 1-d connect, right side single valve inlet chamber 1-b, left side single valve inlet chamber 1-c and output cavity 1-j
Being connected by right side single valve intake valve port 1-i, left side single valve intake valve port 1-h respectively, output cavity 1-h and discharge chamber 1-n passes through
Right side single valve exhaust valve port 1-k, left side single valve exhaust valve port 1-m connection；Two groups of two-bit triplet electromagnetism are set in described valve pocket
The valve core of main valve 1-5 of valve, arranges blocking 1-6 and lower blocking 1-7 on valve core of main valve 1-5, arranges lower end in the bottom of valve pocket
Lid 1-8, is sealed by sealing ring between bottom end cover 1-8 and valve pocket, connects main valve between lower blocking 1-7 and bottom end cover 1-8
Back-moving spring 1-9；In the case of cold (i.e. reset state), valve core of main valve 1-5 is upwards pushed up by main valve back-moving spring 1-9,
Making inlet chamber block with output cavity 1-j phase, output cavity 1-j and discharge chamber 1-n is conducted；
As shown in Fig. 8～Fig. 9, about the inside of described guide's valve seat 2, it is respectively symmetrically setting corresponding with two pilot solenoid valves 3
The first air-capacitor chamber 2-a and the second air-capacitor chamber 2-b；The left side single valve of the two-bit triplet electromagnetic valve in left side in described main valve body 1-1
Inlet chamber 1-c detects flow passage with the second air-capacitor chamber 2-b on right side by the first air inlet, and the first air inlet detection runner is by left side
Guide's air inlet restriction hole 1-s, left side guide's source of the gas introduction hole 1-r, left side guide air inlet vertical core 2-g, the first air inlet runner 2-h,
Second air-capacitor air inlet 2-c is constituted；The right side single valve inlet chamber 1-c of the two-bit triplet electromagnetic valve on right side in described main valve body 1-1
Detecting flow passage with the first air-capacitor chamber 2-a in left side by the second air inlet, the second air inlet detection runner is by right side guide's air inlet
Throttle orifice 1-w, right side guide's source of the gas introduction hole 1-v, right side guide air inlet vertical core 2-u, the second air inlet runner 2-i, the first air-capacitor
Air inlet 2-d is constituted；Described first air-capacitor chamber 2-a and the second air-capacitor chamber 2-b left side guide's air inlet in guide's valve seat 2 respectively
Hole 2-o, right side guide air inlet 2-e and the without hindrance company of guide's air inlet of the pilot solenoid valve 3 of the left and right sides on guide's valve seat 2
Logical；Single valve spool control room 1-q and right side on the left of the top of two valve core of main valve 1-5 respectively and is formed between main valve body 1-1
Single valve spool control room 1-p, left side single valve spool control room 1-q, right side single valve spool control room 1-p are respectively by guide's valve seat
On left side pilot control opening 2-t, right side pilot control opening 2-f without hindrance with the pilot output port of left and right two pilot solenoid valves 3
Hinder connection.Before the said structure the first air-capacitor chamber 2-a, the second air-capacitor chamber 2-b on first guide valve seat 2, by the first air inlet runner
2-h and the second air inlet runner 2-i carries out intersecting and achieving the cross monitoring of pilot control source of the gas, from left side single valve inlet chamber
The two-bit triplet electromagnetic valve on right side is controlled by the second air-capacitor chamber 2-b on the right side of the source of the gas entrance of 1-c；From right side single valve air inlet
The two-bit triplet electromagnetic valve in left side is controlled by the first air-capacitor chamber 2-a on the left of the source of the gas entrance of chamber 1-b.Above structure realizes
The left side single valve inlet chamber 1-c of two groups of two-bit triplet electromagnetic valves within valve core of main valve 1-5 and from right side single valve inlet chamber 1-b
(enter with the left side guide air inlet 2-o on guide's valve seat and right side guide respectively with guide's air inlet of two groups of pilot solenoid valves 3
Pore 2-e connect) intersection connection, the compressed air cross-entry hence into one of which two-bit triplet electromagnetic valve is first conducted electricity
In magnet valve 3, it is achieved the opening and closing of another group two-bit triplet electromagnetic valve of cross-over control.Above-mentioned guide's air-capacitor chamber and main valve body 1-
Detecting flow passage by air inlet between the inlet plenum of 1, the safety dual valve air-capacitor chamber in hinge structure is away from left and right list
Valve intake valve port, realize between the gentle cavity volume of single valve intake valve port of left and right air inlet detection runner damp Datong District's seasonal epidemic pathogens cavity volume with
Pilot solenoid valve air inlet realizes without hindrance connection to ensure that air-capacitor intracavity is connect what poly-air pressure can be opened at pilot solenoid valve
Moment preferentially concentrates single valve spool control room release to left and right, reduces because safety dual valve opens the Fructus Liquidambaris product of moment simultaneously
The backflow of the compressed air single valve inlet plenum to left and right in angry cavity volume, the stability making guide intersect during observing and controlling is more preferable,
To reduce the misoperation of monitoring, guide's cross monitoring performance improves.Additionally realize nothing because of air-capacitor chamber and pilot solenoid valve air inlet
Hinder after connecting, air-capacitor intracavity is connect poly-air pressure and can preferentially be concentrated single valve valve to left and right in the moment that pilot solenoid valve is opened
The release of core control room make main valve plug commutation action quickening in safety dual valve, the action dispersion of safety dual valve have one the biggest
Reduction, the control accuracy of controlled punching machine clutch and brake is had a raising the biggest, thus to this safety
Dual valve is possibly realized for high speed, high-accuracy punching machine.And in original technology, cross detection runner be located at air-capacitor chamber
Cannot realize with the safety dual valve of guide's air inlet.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 5, Fig. 6, on the bottom end cover 1-8 bottom two groups of valve pockets of described main valve body 1-1
Being respectively mounted the first proximity switch 4 and the second proximity switch 5, the first proximity switch 4 and the second proximity switch 5 are respectively used to detection
The position of spool 1-5 in two groups of main valve body 1-1.
As shown in Figure 8, the operation principle of safe duplex electromagnetic valve of the present invention is: safety dual valve is identical by two
Two-position three way single valve constitute, two through throttling after single valve air inlet link together with safety dual valve air inlet IN, two lists
After the delivery outlet parallel connection of valve, the delivery outlet OUT with safety dual valve links together, with peace after the air vent parallel connection of two single valves
The air vent EXIT of full dual valve connects together, by two compressed airs entering pilot solenoid valve in entering safety dual valve
The first air-capacitor chamber (left) 2-a, the second air-capacitor chamber (right) 2-b before just intersect, it is achieved to two single valves in safe duplex
1DT, 2DT cross detection, and control, realize the safety pair of 3a, 3b of being made up of two single valves and two-position three way magnetic valve simultaneously
Connection valve air inlet IN, gas outlet OUT, air vent EXIT Redundant Control are parallel together.Two elder generations when safety dual valve
Conduction magnet valve 1DT, 2DT coil simultaneously electric or dead electricity, pilot solenoid valve intersect the work shape from monitoring and control valve core of main valve
The valve core of main valve commutation action of state and rear control safety dual valve.
Following three duty can be divided into during safety dual valve of the present invention work:
(1) safety dual valve no power duty, i.e. reset state:
Compressed air after the air inlet IN of main valve body 1-1 enters inlet chamber 1-a 1-12 respectively through main valve body 1-1 from two
Left single valve air inlet restriction hole 1-d, right single valve air inlet restriction hole 1-e air inlet restriction mouth 1-13 enter right single valve inlet plenum 1-b, Zuo Dan
Valve inlet plenum 1-c inlet plenum 1-2, is reached guide air inlet 2-o and the right side elder generation of two pilot solenoid valves 3 by air inlet detection runner
Lead air inlet 2-e guide air inlet 3-1, under cold state, guide's air inlet 3-1 guide's air inlet of pilot solenoid valve 3
Hole 2-o and right side guide air inlet 2-e disconnects with left pilot control opening 2-t and right pilot control opening 2-f and closing, and enters air inlet inspection
The compressed air of measurement flow channel is by the lower blocking 1-7 of the guide air inlet 3-1 and two valve core of main valve 1-5 of two pilot solenoid valves 3
Seal；Pressure in original two left single valve spool control room 1-q and right single valve spool control room 1-p valve core of main valve control room 1-10
Contracting air is discharged from the air vent of pilot solenoid valve 3；In the clutch that connects with the gas outlet OUT of safety dual valve, brake
Compressed air through gas outlet OUT, discharge chamber 1-n1-4 and air vent EXIT discharge air.
Now it is at, away from the first proximity switch 4 and position of the second proximity switch 5, making because of two valve core of main valve 1-5
First proximity switch the 4, second proximity switch 5 all exports "off", inputs a peace to the safety control system of punching machine
Complete two valve core of main valve of dual valve are all in the signal of telecommunication of reset state.
(2) safety dual valve energising duty:
When the coil of two pilot solenoid valves is energized simultaneously, guide air inlet 3-1 opens, the exhaust close of pilot solenoid valve,
Compressed air enters the first air-capacitor chamber (left) 2-a from air inlet detection runner respectively, the second air-capacitor chamber (right) 2-b, the second air-capacitor are entered
Pore (right) 2-c the first air-capacitor chamber 2-1 and the second air-capacitor chamber 2-2, by left, guide air inlet 2-o and right side guide air inlet 2-e
Respectively through two pilot solenoid valves, left pilot control opening 2-t and right pilot control opening 2-f pilot control opening 3-2 through pilot control
Runner 3-3 flows in left single valve spool control room 1-q and right single valve spool control room 1-p valve core of main valve control room 1-10, when two
In individual main single valve spool control room 1-10, pressure drives two valve core of main valve 1-15 to move down and beat after reaching certain pressure at once
Open left single valve intake valve port 1-h and right single valve intake valve port 1-i main valve intake valve port 1-14, close right single valve exhaust valve port 1-k
With left single valve exhaust valve port 1-m main valve exhaust valve port 1-15.By the inlet chamber 1-being connected with the air inlet IN of safety dual valve
The compressed air that 121-a enters is from two left single valve air inlet restriction hole 1-d, right single valve air inlet restriction hole 1-e main valve air inlet restriction
Mouthful 1-13 through left single valve intake valve port 1-h and right single valve intake valve port 1-i main valve intake valve port 1-14, by output cavity 1-j, 1-3,
Gas outlet OUT enters in controlled clutch, brake.
It is at after now moving down because of two valve core of main valve 1-5 close to the first proximity switch 4 and position of the second proximity switch 5
Put, make the first proximity switch 4 and the second proximity switch 5 all export " on ", input to the safety control system of punching machine
Two valve core of main valve of one safety dual valve all locate the signal of telecommunication in working order.
(3) safety dual valve (a single entry valve) malfunction:
A single entry valve in safety dual valve is out of order (including the asynchronous of two valve core of main valve actions), i.e. one main valve valve
Core 1-5 opens, another valve core of main valve 1-5 closes.Compressed air is through left single valve air inlet restriction hole 1-d or right single valve air inlet restriction
Hole 1-e, air inlet restriction mouth 1-13 are from left single valve intake valve port 1-h corresponding for the valve core of main valve 1-5 opening (preferentially opening) or the right side
Single valve intake valve port 1-i main valve intake valve port 1-14 flows into another and also locates right single valve exhaust valve port 1-k in off position, a left side
Single valve exhaust valve port 1-m, valve core of main valve 1-5 left or right single valve exhaust valve port 1-15, discharge chamber 1-41-n arrange to air, make with
The clutch that safety dual valve gas outlet OUT is connected, the compressed air pressure in brake decay to it and drive (to enter under pressure
The 10% of QI KOU IN pressure, no more than 0.04MPa).
Now the valve core of main valve of side is in the position close to the first proximity switch 4, another valve core of main valve be in away from
The position of the second proximity switch 5, the first proximity switch 4 exports " on " signal, and the second proximity switch 5 exports " closedown " signal,
The signal of telecommunication of a fault is inputted to the safety control system of punching machine.
Safety dual valve of the present invention, is arranged on guide's air-capacitor chamber on guide's valve seat, away from intake valve port, by guide
Air inlet changes into without hindrance with first, second guide's air-capacitor and is connected (the former intersection by longer runner is connected), and first, second first
Inducing QI is held the air inlet constant throttling orifice plug being connected and is changed into being intersected connected (being that low resistance connects parallel originally) by longer runner two, guide
Air-capacitor chamber is arranged on guide's valve seat away from intake valve port.First, second guide's air-capacitor is decreased to main valve by above-mentioned improvement
Valve controls the air damping in chamber, adds the air damping of first, second guide's air-capacitor to two constant throttling orifice plugs, weakens permanent joint
The orifice plate effect of discharge orifice plug, accelerates the time that main valve plug is opened, and reduces the safety dual valve commutation rise time, improves this safety
The reliability of dual valve action, improves this safety dual valve pilot control source of the gas intersection prosecution to two valve core of main valve
Can, the dispersion that the asynchronous commutation ability that improve safety dual valve reduces safety dual valve commutating period is such safe duplex
Valve at a high speed, the control of heavy-duty machinery forcing press establish certain basis, it is to avoid the moment of main valve switch produces Fructus Liquidambaris
Pilot control source of the gas is disturbed by phenomenon, eliminates wrong report fault-signal phenomenon and unsafety failure.
Guide's air-capacitor chamber is arranged on guide's valve seat, away from intake valve port, it is to avoid the moment of main valve switch produces road
Road leads to phenomenon and disturbs pilot control source of the gas, eliminates phenomenon of being failure to actuate after making safety dual valve appearance energising；And action
Time discrete relatively small, it is normal that two guides intersect observing and controlling, eliminates wrong report fault-signal phenomenon and unsafety failure.
The commutating period using the safety dual valve different model of present configuration ensure that preferable concordance, discrete
Spend relatively small.Safety dual valve dispersion of the prior art exists in about 12ms, the safety dual valve dispersion of the present invention
Within 5ms, the concordance of working time is preferable.Safe duplex of the prior art and asynchronous commutating period within 10ms,
Safety dual valve asynchronous commutating period of the present invention is about 25ms such that it is able to avoid sending out a fault-signal, it is ensured that safety is double by mistake
The functional reliability of connection valve.
Claims (4)
1. a safe duplex electromagnetic valve, including the main valve assembly (1) being made up of two groups of two-bit triplet electromagnetic valves, is often organizing two
Pilot solenoid valve (3) is installed by guide's valve seat (2) in the top of three-way magnetic valve；It is characterized in that: described main valve assembly (1) includes
Main valve body (1-1), arranges air inlet IN, gas outlet OUT and air vent EXIT on main valve body (1-1), at main valve body (1-1)
Inside is provided with valve pocket and inlet plenum (1-a), and valve pocket is by the inlet chamber being distributed from bottom to top, output cavity (1-j) and discharge chamber (1-n)
Composition, inlet chamber includes right side single valve inlet chamber (1-b) and left side single valve inlet chamber (1-c)；Described air inlet IN connects air inlet
Room (1-a), gas outlet OUT connects with output cavity (1-j), and air vent EXIT connects with discharge chamber (1-n)；Described inlet plenum (1-
A) with right side single valve inlet chamber (1-b), left side single valve inlet chamber (1-c) respectively by single valve air inlet restriction hole, right side (1-e), a left side
Single valve air inlet restriction hole, side (1-d) connects, right side single valve inlet chamber (1-b), left side single valve inlet chamber (1-c) and output cavity (1-
J) connected by right side single valve intake valve port (1-i), left side single valve intake valve port (1-h) respectively, output cavity (1-h) and discharge chamber
(1-n) connected by right side single valve exhaust valve port (1-k), left side single valve intake valve port (1-m)；Two groups are arranged in described valve pocket
The valve core of main valve (1-5) of two-bit triplet electromagnetic valve, arranges upper blocking (1-6) and lower blocking (1-7) on valve core of main valve (1-5),
It is connected main valve back-moving spring (1-9) between lower blocking (1-7) and main valve body (1-1)；About the inside of described guide's valve seat (2)
It is respectively symmetrically and the first corresponding with two pilot solenoid valves (3) respectively air-capacitor chamber (2-a) and the second air-capacitor chamber (2-b) are set；Institute
State the second air-capacitor chamber (2-b) on left side single valve inlet chamber (1-c) in main valve body (1-1) and right side by the first air inlet detection stream
Road connects, and right side single valve inlet chamber (1-c) in main valve body (1-1) is entered by second with the first air-capacitor chamber (2-a) with left side
Gas detection flow passage；Described first air-capacitor chamber (2-a) and the left side in guide's valve seat (2) respectively, the second air-capacitor chamber (2-b)
The elder generation of the pilot solenoid valve (3) of the upper left and right sides of guide's air inlet (2-o), right side guide's air inlet (2-e) and guide's valve seat (2)
Lead air inlet connection；Single valve spool control room on the left of being formed between the top of described valve core of main valve (1-5) and main valve body (1-1)
(1-q) with right side single valve spool control room (1-p), left side single valve spool control room (1-q) and right side single valve spool control room (1-
P) respectively by the left side pilot control opening (2-t) on guide's valve seat (2), right side pilot control opening (2-f) and two, left and right elder generation
The pilot output port connection of conduction magnet valve (3).
Safe duplex electromagnetic valve the most as claimed in claim 1, is characterized in that: described first air inlet detection runner is by left side guide
Air inlet restriction hole (1-s), left side guide's source of the gas introduction hole (1-r), left side guide's air inlet vertical core (2-g), the first air inlet runner (2-
H), the second air-capacitor air inlet (2-c) is constituted；Described second air inlet detection runner is by guide's air inlet restriction hole, right side (1-w), right side
Guide's source of the gas introduction hole (1-v), right side guide's air inlet vertical core (2-u), the second air inlet runner (2-i), the first air-capacitor air inlet (2-
D) constitute；Described first air inlet runner (2-h) and the second air inlet runner (2-i) are arranged in a crossed manner.
Safe duplex electromagnetic valve the most as claimed in claim 1, is characterized in that: arrange bottom end cover (1-in the bottom of described valve pocket
8), it is tightly connected between bottom end cover (1-8) and valve pocket.
Safe duplex electromagnetic valve the most as claimed in claim 3, is characterized in that: at the bottom of two groups of valve pockets of described main valve body (1-1)
The first proximity switch (4) and the second proximity switch (5) it is respectively mounted on the bottom end cover (1-8) in portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610882233.8A CN106195350B (en) | 2016-10-09 | 2016-10-09 | Safe duplex solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610882233.8A CN106195350B (en) | 2016-10-09 | 2016-10-09 | Safe duplex solenoid valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106195350A true CN106195350A (en) | 2016-12-07 |
| CN106195350B CN106195350B (en) | 2019-04-30 |
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ID=57521261
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610882233.8A Active CN106195350B (en) | 2016-10-09 | 2016-10-09 | Safe duplex solenoid valve |
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| Country | Link |
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| CN (1) | CN106195350B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108869846A (en) * | 2018-08-10 | 2018-11-23 | 湖州森纳德电子科技有限公司 | A kind of stepper motor electromagnetic combined valve |
| JP2020029929A (en) * | 2018-08-24 | 2020-02-27 | アズビルＴａｃｏ株式会社 | Cross-flow type dual valve and manufacturing method of housing of cross-flow type dual valve |
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| CN103496190A (en) * | 2013-09-29 | 2014-01-08 | 无锡市拓发自控设备有限公司 | Safety dual electromagnetic valve for mechanical press |
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| US3858606A (en) * | 1973-08-23 | 1975-01-07 | Ross Operating Valve Co | Safety control valve system for fluid actuated devices |
| US4269225A (en) * | 1977-12-16 | 1981-05-26 | Technomatic Ag | Safety valve assembly |
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| JP2020029929A (en) * | 2018-08-24 | 2020-02-27 | アズビルＴａｃｏ株式会社 | Cross-flow type dual valve and manufacturing method of housing of cross-flow type dual valve |
| JP7148323B2 (en) | 2018-08-24 | 2022-10-05 | アズビルＴａｃｏ株式会社 | CROSS-FLOW TYPE DUAL VALVE AND METHOD FOR MANUFACTURING CASING OF CROSS-FLOW TYPE DUAL VALVE |
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| Publication number | Publication date |
|---|---|
| CN106195350B (en) | 2019-04-30 |
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