CN106195350B - Safe duplex solenoid valve - Google Patents
Safe duplex solenoid valve Download PDFInfo
- Publication number
- CN106195350B CN106195350B CN201610882233.8A CN201610882233A CN106195350B CN 106195350 B CN106195350 B CN 106195350B CN 201610882233 A CN201610882233 A CN 201610882233A CN 106195350 B CN106195350 B CN 106195350B
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- valve
- air inlet
- guide
- chamber
- main valve
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Classifications
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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
Abstract
The present invention relates to a kind of safe duplex solenoid valve, including two groups of two-bit triplet solenoid valve blocks at main valve component, pilot solenoid valve is installed by guide's valve seat in main valve component top；The main valve component includes main valve body, and air inlet, gas outlet and exhaust outlet are arranged on main valve body, and the inside of main valve body is equipped with valve chamber, and valve core of main valve is arranged in valve chamber, and upper blocking and lower blocking are arranged on valve core of main valve, lower that reset spring is connected between blocking and main valve body；It is characterized in that: the first gas cavity and the second gas cavity are arranged inside guide's valve seat, first gas cavity of side is connected to the inlet plenum of the two-bit triplet solenoid valve of the other side, second gas cavity of the other side is connected to the inlet plenum of the two-bit triplet solenoid valve of side, and the first gas cavity and the second gas cavity are connected to guide's air inlet of corresponding pilot solenoid valve.The present invention can be avoided main valve switching moments generation Fructus Liquidambaris phenomenon and interfere pilot control gas source, eliminate wrong report fault-signal phenomenon and unsafety failure.
Description
Technical field
The present invention relates to a kind of safe duplex solenoid valve, especially a kind of mechanical press clutch for being applicable in manual feeding
The safe duplex solenoid valve that device, brake control.
Background technique
The safe duplex solenoid valve of mechanical press is the one kind for controlling frictional pressure brake, clutch normal work
Safety-type pneumatic functional component.As national standard GB27607-2011 " mechanical press safety specifications " passes through mark and execution, hand
The security performance grade of dynamic operation mechanical press should reach EN ISO 13849-1:2008/AC:2009, GB/T 16855.13
(PL e, Cat 4) standard.
In the prior art, safety dual valve disclosed in Chinese patent ZL201310454582.6, including main valve component is with after
Valve component, main valve component include two groups of two-bit triplet solenoid valves, and pilot solenoid valve is installed on every group of two-bit triplet solenoid valve top；
The main valve component includes main valve body, and two valve chambers are set inside main valve body, discharge chamber and the parallel nothing of output cavity in two valve chambers
Obstruction is linked together, while also dividing into two independent inlet chambers, and two inlet chambers pass through air inlet restriction mouth and the safe duplex
The air inlet of valve is connected in parallel, and the other ends of two inlet chambers holds where purpose is held with the second gas through constant throttling orifice plug and the first gas
Chamber is connected in parallel；In addition, valve core of main valve is arranged in valve chamber, upper blocking and lower blocking, lower blocking and master are set on valve core of main valve
Main valve reset spring is connected between valve body；The rear valve base component includes rear valve base, sets air inlet and exhaust outlet on rear valve base,
The first first air guide cavity and the second first air guide cavity are set inside rear valve base；The two-bit triplet solenoid valve of the main valve body side into
Air cavity is connected to the first first air guide cavity, and the first first air guide cavity is connected to the pilot solenoid valve of the other side；The main valve body is another
The inlet chamber of the two-bit triplet solenoid valve of side is connected to the second first air guide cavity, the first conduction of the second first air guide cavity and side
Magnet valve connection；That is, the air inlet of the first first air guide cavity, the second first air guide cavity and two row conduction magnet valves passes through two runners
Interconnection is connected in parallel with two main valve inlet chambers by two constant throttling orifice plugs.
Two first air guide cavities are arranged on rear valve base the safety dual valve, keep structure more compact, reduce duplex
The volume of valve.But also there are some defects and undesirable place by the use of many years, main cause is the safety dual valve
First air guide cavity is arranged on rear valve base, through the first first air guide cavity and the second first air guide cavity and main valve intake valve port distance
It is close, although there is the blocking of constant throttling orifice plug, because orifice plate effect reduces the restriction effect of constant throttling orifice plug, when safety dual valve is logical
Electricity opens moment generation Fructus Liquidambaris phenomenon and carries out very big interference to pilot control gas source.In addition, two of the safety dual valve
The air damping of guide's air inlet to the first first air guide cavity and the second first air guide cavity is greater than the first first air guide cavity and second
First air guide cavity makes safety dual valve after powered up, two valve core of main valve movements are relatively slow, often go out to the damping of intake valve port
Unsafety failure after being now powered, and the dispersion of actuation time is larger, because two guides intersection observing and controlling is too sensitive, the safe duplex
The asynchronous commutation ability of valve is very poor, often reports fault-signal by mistake, therefore such safety dual valve is safe but movement is unreliable.
Summary of the invention
The purpose of the present invention is overcoming the deficiencies in the prior art, a kind of safe duplex solenoid valve is provided, by guide
The moment generation Fructus Liquidambaris phenomenon that main valve switch is avoided far from intake valve port is arranged on first guide valve seat to guide's control in gas cavity
Gas source processed is interfered, and wrong report fault-signal phenomenon and unsafety failure are eliminated.
According to technical solution provided by the invention, the safe duplex solenoid valve, including by two groups of two-bit triplet solenoid valves
The main valve component of composition installs pilot solenoid valve by guide's valve seat on the top of every group of two-bit triplet solenoid valve；It is characterized in that:
The main valve component includes main valve body, air inlet IN, gas outlet OUT and exhaust outlet EXIT is arranged on main valve body, in main valve body
Inside be equipped with valve chamber and inlet plenum, valve chamber is made of the inlet chamber, output cavity and discharge chamber being distributed from bottom to top, inlet chamber packet
Include right side single valve inlet chamber and left side single valve inlet chamber；The air inlet IN is connected to inlet plenum, and gas outlet OUT and output cavity connect
Logical, exhaust outlet EXIT is connected to discharge chamber；The inlet plenum and right side single valve inlet chamber, left side single valve inlet chamber pass through the right side respectively
Side single valve air inlet restriction hole, the connection of left side single valve air inlet restriction hole, right side single valve inlet chamber, left side single valve inlet chamber and output cavity
It is connected to respectively by right side single valve intake valve port, left side single valve intake valve port, output cavity and discharge chamber are vented by right side single valve
Valve port, the connection of left side single valve intake valve port；The valve core of main valve of two groups of two-bit triplet solenoid valves is set in the valve chamber, in main valve
Upper blocking and lower blocking are set on spool, it is lower that main valve reset spring is connected between blocking and main valve body；In guide's valve seat
Inside left and right is symmetrically arranged the first gas cavity corresponding with two pilot solenoid valves and the second gas cavity respectively；The main valve
Intracorporal left side single valve inlet chamber is connected to the second gas cavity on right side by the first air inlet detection channel, the intracorporal right side of main valve
Single valve inlet chamber is connected to the first gas cavity by the second air inlet detection channel with left side；The first gas cavity and the second gas
Guide of the cavity respectively through the left and right sides on left side guide's air inlet, right side guide's air inlet and the guide's valve seat in guide's valve seat
Guide's air inlet of solenoid valve is connected to；Single valve spool control room on the left of being formed between the top and main valve body of the 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 pass through respectively on guide's valve seat
Left side pilot control opening, right side pilot control opening with left and right two pilot solenoid valves pilot output port be connected to.
Further, the first air inlet detection channel by left side guide's air inlet restriction hole, left side guide's gas source introduction hole,
Left side guide's air inlet vertical core, the first air inlet runner, the second gas hold air inlet and constitute；The second air inlet detection channel is by right side elder generation
Lead air inlet restriction hole, right side guide's gas source introduction hole right side guide's air inlet vertical core, the second air inlet runner, the first gas appearance air inlet structure
At；First air inlet runner and the second air inlet runner are arranged in a crossed manner.
Further, lower cover is set in the bottom of the valve chamber, is tightly connected between lower cover and valve chamber.
Further, first is installed respectively on the lower cover of two groups of valve chamber bottoms of the main valve body close to switch and the
Two close switches.
Safety dual valve of the present invention has the advantage that
(1) first air guide cavity is arranged on first guide valve seat the present invention, far from intake valve port, greatly reduces the first gas
The air damping of cavity, the second gas cavity to valve core of main valve control chamber increases the first gas cavity, the second gas cavity to two permanent sections
The air damping of discharge orifice weakens the orifice plate effect of constant throttling orifice, and the moment for avoiding main valve switch generates Fructus Liquidambaris phenomenon pair
Pilot control gas source is interfered；
(2) reliability for improving safety dual valve movement, improves the safety dual valve pilot control gas source to two
The intersection prosecution performance of a valve core of main valve, improves the asynchronous commutation ability of safety dual valve；
(3) actuation time is discrete relatively small, and the dispersion for reducing safety dual valve commutating period is to improve at a high speed, again
Certain basis is established in the control for carrying mechanical press；
(4) two guides intersection observing and controlling is normal, common to eliminate wrong report fault-signal phenomenon and unsafety failure.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of safe duplex solenoid valve of the present invention.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Fig. 3 is the B-B cross-sectional view of Fig. 1.
Fig. 4 is the top view of Fig. 1.
Fig. 5 is the structural schematic diagram of main valve component 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 cross-sectional view of Fig. 4.
Fig. 9 is the D-D cross-sectional view of Fig. 4.
Figure 10 is the schematic diagram of safe duplex solenoid valve of the present invention.
Specific embodiment
Below with reference to specific attached drawing, the invention will be further described.
As shown in Fig. 1~Figure 10: the safe duplex solenoid valve includes main valve component 1, guide's valve seat 2, pilot solenoid valve
3, the first close switch 4, second close switch 5, air inlet IN, gas outlet OUT, exhaust outlet EXIT, main valve body 1-1, main valve valve
Core 1-5, upper blocking 1-6, lower blocking 1-7, lower cover 1-8, main valve reset spring 1-9, inlet plenum 1-a, right side single valve inlet chamber
1-b, left side single valve inlet chamber 1-c, left side single valve air inlet restriction hole 1-d, right side single valve air inlet restriction hole 1-e, left side single valve into
Valve port while 1-i, right side single valve intake valve port 1-h, 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, left side guide's air inlet restriction hole 1-s, right side guide's gas source introduction hole 1-v, left side guide's air inlet restriction hole 1-w, the first gas
Cavity 2-a, the second gas cavity 2-b, the second gas hold air inlet 2-c, the first gas hold air inlet 2-d, right side guide's air inlet 2-e,
Right side pilot control opening 2-f, left side guide's 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's air inlet vertical core 2-u etc..
Due to the first first air guide cavity of safety dual valve in the prior art and the second first air guide cavity and main valve intake valve
Mouthful apart from close, although there is the blocking of constant throttling orifice plug, because orifice plate effect reduces the restriction effect of constant throttling orifice plug, when safety is double
Join valve energization and opens the interference very big to the generation of pilot control gas source of moment generation Fructus Liquidambaris phenomenon.In addition, pacifying in the prior art
The air damping of two guide's air inlets of full dual valve to the first first air guide cavity and the second first air guide cavity is greater than first first
Air guide cavity and the second first air guide cavity make safety dual valve after powered up, two valve core of main valve are dynamic to the damping of intake valve port
Make relatively slow, unsafety failure after being powered often occurs, and actuation time is discrete from larger, too because of the observing and controlling of two guides intersection
Sensitive, the asynchronous commutation ability of the safety dual valve is very poor, often reports fault-signal, therefore such safety dual valve safety by mistake,
But it is unreliable to act.In order to avoid drawbacks described above, first air guide cavity is arranged in guide safe duplex solenoid valve of the present invention
Far from air inlet IN on valve seat, the moment for avoiding main valve switch generates Fructus Liquidambaris phenomenon and interferes pilot control gas source,
It specifically includes with flowering structure:
As shown in Figure 1 to 4, safe duplex solenoid valve of the present invention, including by two groups of two-bit triplet solenoid valve blocks at
Main valve component 1, the top of every group of two-bit triplet solenoid valve by guide's valve seat 2 install pilot solenoid valve 3；
As shown in Fig. 5~Fig. 7, the main valve component 1 include main valve body 1-1, on main valve body 1-1 be arranged air inlet IN,
Gas outlet OUT and exhaust outlet EXIT is equipped with valve chamber and inlet plenum 1-a in the inside of main valve body 1-1, and valve chamber by being distributed from bottom to top
Inlet chamber, 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；The air inlet IN is connected to inlet plenum 1-a, and gas outlet OUT is connected to output cavity 1-j, exhaust outlet EXIT and discharge chamber 1-n
Connection；The inlet plenum 1-a and right side single valve inlet chamber 1-b, left side single valve inlet chamber 1-c pass through right side single valve air inlet section respectively
Discharge orifice 1-e, left side single valve air inlet restriction hole 1-d connection, right side single valve inlet chamber 1-b, left side single valve inlet chamber 1-c and output cavity
1-j passes through right side single valve intake valve port 1-h, left side single valve intake valve port 1-i connection, output cavity 1-j and discharge chamber 1-n respectively
It is connected to by right side single valve exhaust valve port 1-k, left side single valve exhaust valve port 1-m；Two groups of two-bit triplets are set in the valve chamber
Upper blocking 1-6 and lower blocking 1-7 is arranged in the valve core of main valve 1-5 of solenoid valve on valve core of main valve 1-5, is arranged in the bottom of valve chamber
Lower cover 1-8 is sealed by a seal ring between lower cover 1-8 and valve chamber, is connected between lower blocking 1-7 and lower cover 1-8
Main valve reset spring 1-9；In cold situation (i.e. reset state), main valve reset spring 1-9 is upward by valve core of main valve 1-5
Top, blocks inlet chamber with output cavity 1-j phase, output cavity 1-j and discharge chamber 1-n are conducted；
As shown in Fig. 8~Fig. 9, it is symmetrically arranged and two pilot solenoid valves 3 in the inside or so of guide's valve seat 2
Corresponding first gas cavity 2-a and the second gas cavity 2-b；The left side of the two-bit triplet solenoid valve in left side in the main valve body 1-1
Single valve inlet chamber 1-c is connected to the second gas cavity 2-b on right side by the first air inlet detection channel, the first air inlet detection channel by
Left side guide's air inlet restriction hole 1-s, left side guide's gas source introduction hole 1-r, left side guide's air inlet vertical core 2-g, the first air inlet runner
2-h, the second gas hold air inlet 2-c and constitute；The right side single valve inlet chamber of the two-bit triplet solenoid valve on right side in the main valve body 1-1
1-b is connected to the first gas cavity 2-a in left side by the second air inlet detection channel, the second air inlet detection channel by right side guide into
Moral discharge orifice 1-w, right side guide's gas source introduction hole 1-v, right side guide's air inlet vertical core 2-u, the second air inlet runner 2-i, the first gas
Hold air inlet 2-d to constitute；The first gas cavity 2-a and the second gas cavity 2-b respectively through the left side guide in guide's valve seat 2 into
Stomata 2-o, right side guide's air inlet 2-e and guide's air inlet of the pilot solenoid valve 3 of the left and right sides on guide's valve seat 2 are without hindrance
Connection；Single valve spool control room 1-q and the right side on the left of the top of two valve core of main valve 1-5 is formed between main valve body 1-1 respectively
Side 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 pass through pilot valve respectively
The pilot output port of left side pilot control opening 2-t, right side pilot control opening 2-f on seat and left and right two pilot solenoid valves 3 without
Hinder connection.Before the first gas cavity 2-a, the second gas cavity 2-b on the first guide valve seat 2 of above structure, pass through the first inlet air flow
Road 2-h and the second air inlet runner 2-i are intersected and are realized the cross monitoring of pilot control gas source, from left side single valve air inlet
The second gas cavity 2-b that the gas source of chamber 1-c enters right side controls the two-bit triplet solenoid valve on right side；From right side single valve into
The first gas cavity 2-a that the gas source of air cavity 1-b enters left side controls the two-bit triplet solenoid valve in left side.The above structure is real
The left side single valve inlet chamber 1-c of two groups of two-bit triplet solenoid valves inside valve core of main valve 1-5 is showed and from right side single valve inlet chamber
1-b and two group of pilot solenoid valve 3 guide's air inlet (respectively on guide's valve seat left side guide's air inlet 2-o and right side it is first
Lead air inlet 2-e connection) intersection connection, cross into elder generation hence into the compressed air of wherein one group of two-bit triplet solenoid valve
In conductive magnet valve 3, the opening and closing of another group of two-bit triplet solenoid valve of cross-over control are realized.Above-mentioned elder generation's air guide cavity and main valve
Be connected between the inlet plenum of body 1-1 by air inlet detection channel, compared with the prior art in safety dual valve gas cavity far from it is left,
Right single valve intake valve port, when realizing that the air inlet detection channel between the gentle cavity of left and right single valve intake valve port damps Datong District, gas holds
Chamber realizes without hindrance be connected to guarantee that connect poly- air pressure in gas cavity beats in pilot solenoid valve with pilot solenoid valve air inlet
The moment opened preferentially concentrates single valve spool control room release to left and right, while reducing because safety dual valve opens the road road of moment
The reflux of the logical compressed air generated in gas cavity single valve inlet plenum to left and right, makes guide intersect the stability during observing and controlling
More preferably, to reduce the malfunction of monitoring, guide's cross monitoring performance is improved.In addition because of gas cavity and pilot solenoid valve air inlet cause for gossip
Poly- air pressure is connect after existing without hindrance connection, in gas cavity preferentially concentrates list to left and right in the moment that pilot solenoid valve is opened
The release of valve core control room makes the movement dispersion of main valve plug commutation action quickening in safety dual valve, safety dual valve have one
Very big reduction has a very big raising to the control precision of controlled mechanical press clutch and brake, thus to this
Safety dual valve is possibly realized for high speed, high-accuracy mechanical press.And in original technology, cross detection runner be located at gas
The safety dual valve of cavity and guide's air inlet cannot achieve.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 5, Fig. 6, on the lower cover 1-8 of two groups of valve chamber bottoms of the main valve body 1-1
Installation first is respectively used to detect close to switch 4 and second close to switch 5, first close to switch 4 and second close to switch 5 respectively
The position of spool 1-5 in two groups of main valve body 1-1.
As shown in figure 8, the working principle of safe duplex solenoid valve of the present invention is: safety dual valve is identical by two
Two-position three way single valve constitute, two after throttling single valve air inlet link together with safety dual valve air inlet IN, two lists
Link together after the delivery outlet of valve is in parallel with the delivery outlet OUT of safety dual valve, after the exhaust outlet of two single valves is in parallel with peace
The exhaust outlet EXIT of full dual valve connects together, and enters the compressed air of pilot solenoid valve in entering safety dual valve by two
First gas cavity (left side) 2-a, second gas cavity (right side) 2-b before just intersected, realize to two single valves in safe duplex
1DT, 2DT cross detection, and control, while realizing that the safety for 3a, the 3b being made of two single valves and two-position three way magnetic valve is double
Connection valve air inlet IN, gas outlet OUT, exhaust outlet EXIT Redundant Control are parallel together.When two elder generations of safety dual valve
Conductive magnet valve 1DT, 2DT coil obtains electric or power loss simultaneously, pilot solenoid valve intersects from the work shape that valve core of main valve is monitored and controlled
The valve core of main valve commutation action of state and rear control safety dual valve.
Safety dual valve of the present invention can be divided into following three working condition when working:
(1) safety dual valve no power working condition, i.e. reset state:
Compressed air from the air inlet IN of main valve body 1-1 enter after 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,
Left single valve inlet plenum 1-c inlet plenum 1-2 is reached guide's air inlet 2-o and the right side of two pilot solenoid valves 3 by air inlet detection channel
Side guide air inlet 2-e guide air inlet 3-1, in the state of no power, the guide air inlet 3-1 guide of pilot solenoid valve 3
Air inlet 2-o and right side guide's air inlet 2-e and left pilot control opening 2-t and right pilot control opening 2-f, which are disconnected, to be closed, into
The compressed air of gas detection channel is by the lower blocking of the guide's air inlet 3-1 and two valve core of main valve 1-5 of two pilot solenoid valves 3
1-7 is sealed；It is former that there are two 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
Compressed air from the exhaust outlet of pilot solenoid valve 3 be discharged；The clutch that is connected to the gas outlet OUT of safety dual valve, braking
Atmosphere is discharged through gas outlet OUT, discharge chamber 1-n1-4 and exhaust outlet EXIT in compressed air in device.
At this time because two valve core of main valve 1-5 are at far from first close to switch 4 and second close to the position of switch 5, make
First exports "off" close to switch 4, second close to switch 5, inputs a peace to the safety control system of mechanical press
Complete two valve core of main valve of dual valve are in the electric signal of reset state.
(2) safety dual valve is powered on state:
When the coil of two pilot solenoid valves is powered simultaneously, guide's air inlet 3-1 is opened, and the exhaust outlet of pilot solenoid valve closes
It closes, compressed air enters first gas cavity (left side) 2-a, second gas cavity (right side) 2-b, the second gas from air inlet detection channel respectively and holds
Air inlet (right side) 2-c the first gas cavity 2-1 and the second gas cavity 2-2, by left, guide's air inlet 2-o and right side guide's air inlet
2-e is controlled through two pilot solenoid valves, left pilot control opening 2-t and right pilot control opening 2-f pilot control opening 3-2 through guide respectively
Runner 3-3 processed is flowed into 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
In two main single valve spool control room 1-10 pressure reach driven after certain pressure at once two valve core of main valve 1-15 move down and
Left single valve intake valve port 1-h and right single valve intake valve port 1-i main valve intake valve port 1-14 are opened, right single valve exhaust valve port 1- is closed
K and left single valve exhaust valve port 1-m main valve exhaust valve port 1-15.The inlet chamber 1- being connected by the air inlet IN with 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,
In the controlled clutch of gas outlet OUT entrance, brake.
It is at after being moved down at this time because of two valve core of main valve 1-5 close to the position of the first close switch 4 and the second close switch 5
It sets, makes first to export " on " close to switch 5 close to switch 4 and second, inputted to the safety control system of mechanical press
One safety dual valve, two valve core of main valve are in the electric signal of working condition.
(3) safety dual valve (a single entry valve) malfunction:
A single entry valve in safety dual valve is out of order and (acts including two valve core of main valve asynchronous), i.e. a master
Valve core 1-5 is opened, another valve core of main valve 1-5 is closed.Compressed air is through left single valve air inlet restriction hole 1-d or right single valve air inlet
The corresponding left single valve intake valve port 1-h of valve core of main valve 1-5 of throttle orifice 1-e, air inlet restriction mouth 1-13 from opening (preferential to open)
Or right single valve intake valve port 1-i main valve intake valve port 1-14 flows into another right single valve exhaust valve port 1- for being also in closed state
K, left or right single valve exhaust valve port 1-15, discharge chamber 1-41-n the row Xiang great Qi of left single valve exhaust valve port 1-m, valve core of main valve 1-5,
Make the clutch being connected with safety dual valve gas outlet OUT, the compressed air pressure in brake decay to its driving pressure it
Under (the 10% of air inlet IN pressure, be not more than 0.04MPa).
The valve core of main valve of side is in the position close to first close to switch 4 at this time, another valve core of main valve is in separate
Second exports " on " signal close to switch 4 close to the position of switch 5, first, and second exports " closing " signal close to switch 5,
The electric signal of a failure is inputted to the safety control system of mechanical press.
First air guide cavity is arranged on first guide valve seat safety dual valve of the present invention, far from intake valve port, by guide
Air inlet is changed to without hindrance and is connected (original is intersected by longer runner and is connected) with the first, second first air guide appearance, and first, second first
Air guide holds connected air inlet constant throttling orifice plug and is changed to intersect connected (being originally that low resistance is connected to parallel), guide by longer runner two
Gas cavity is arranged on first guide valve seat far from intake valve port.Reduce the first, second first air guide by above-mentioned improvement to hold to main valve
The air damping of valve control chamber increases the first, second first air guide and holds to the air damping of two constant throttling orifice plugs, weakens permanent section
The orifice plate effect of discharge orifice plug accelerates the time that main valve plug is opened, and reduces safety dual valve and commutates the rise time, improves the safety
The reliability of duplex valve events improves intersection prosecution of the safety dual valve pilot control gas source to two valve core of main valve
Can, it is such safe duplex that the asynchronous commutation ability for improving safety dual valve, which reduces the dispersion of safety dual valve commutating period,
Certain basis is established in control of the valve for high speed, heavy-duty machinery press machine, and the moment for avoiding main valve switch generates Fructus Liquidambaris
Phenomenon interferes pilot control gas source, eliminates wrong report fault-signal phenomenon and unsafety failure.
First air guide cavity is arranged on first guide valve seat, far from intake valve port, the moment for avoiding main valve switch generates road
Road leads to phenomenon and interferes pilot control gas source, and elimination makes safety dual valve phenomenon of being failure to actuate after being powered occur；And it acts
Time it is discrete relatively small, it is normal that two guides intersect observing and controlling, eliminates wrong report fault-signal phenomenon and unsafety failure.
Preferable consistency can be guaranteed using the commutating period of the safety dual valve different model of structure of the invention, it is discrete
It spends relatively small.Safety dual valve dispersion in the prior art exists in 12ms or so, safety dual valve dispersion of the invention
Within 5ms, the consistency of working time is preferable.Safe duplex in the prior art and asynchronous commutating period within 10ms,
Safety dual valve of the invention asynchronous commutating period is 25ms or so, so as to avoid accidentally sending out fault-signal, guarantees that safety is double
Join the functional reliability of valve.
Claims (4)
1. a kind of safe duplex solenoid valve, including by two groups of two-bit triplet solenoid valve blocks at main valve component (1), at every group two
The top of three-way magnetic valve passes through guide's valve seat (2) installation pilot solenoid valve (3)；It is characterized in that: the main valve component (1) includes
Air inlet IN, gas outlet OUT and exhaust outlet EXIT is arranged, in main valve body (1-1) in main valve body (1-1) on main valve body (1-1)
Inside is equipped with valve chamber and inlet plenum (1-a), and valve chamber is by the inlet chamber, output cavity (1-j) and discharge chamber (1-n) that are distributed from bottom to top
Composition, inlet chamber includes right side single valve inlet chamber (1-b) and left side single valve inlet chamber (1-c)；The air inlet IN is connected to air inlet
Room (1-a), gas outlet OUT are connected to output cavity (1-j), and exhaust outlet EXIT is connected to discharge chamber (1-n)；Inlet plenum (the 1-
A) and right side single valve inlet chamber (1-b), left side single valve inlet chamber (1-c) pass through right side single valve air inlet restriction hole (1-e), a left side respectively
Side single valve air inlet restriction hole (1-d) connection, right side single valve inlet chamber (1-b), left side single valve inlet chamber (1-c) and output cavity (1-
J) it is connected to respectively by right side single valve intake valve port (1-h), left side single valve intake valve port (1-i), output cavity (1-j) and discharge chamber
(1-n) is connected to by right side single valve exhaust valve port (1-k), left side single valve intake valve port (1-i)；Two groups are arranged in the valve chamber
Upper blocking (1-6) and lower blocking (1-7) is arranged in the valve core of main valve (1-5) of two-bit triplet solenoid valve on valve core of main valve (1-5),
Main valve reset spring (1-9) is connected between lower blocking (1-7) and main valve body (1-1)；In the inside or so of guide's valve seat (2)
It is symmetrically arranged the first gas cavity (2-a) corresponding with two pilot solenoid valve (3) respectively and the second gas cavity (2-b)；Institute
The the second gas cavity (2-b) for stating left side single valve inlet chamber (1-c) and right side in main valve body (1-1) passes through the first air inlet detection stream
Road connection, right side single valve inlet chamber (1-b) and left side in main valve body (1-1) with the first gas cavity (2-a) by second into
The connection of gas detection channel；The first gas cavity (2-a) and the second gas cavity (2-b) are respectively through the left side in guide's valve seat (2)
The elder generation of guide's air inlet (2-o), right side guide's air inlet (2-e) and the pilot solenoid valve (3) of the left and right sides on guide's valve seat (2)
Lead air inlet connection；Left side single valve spool control room is formed between the top and main valve body (1-1) of the valve core of main valve (1-5)
(1-q) and 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) pass through two the left side pilot control opening (2-t) on guide's valve seat (2), right side pilot control opening (2-f) and left and right elder generations respectively
The pilot output port of conductive magnet valve (3) is connected to.
2. safe duplex solenoid valve as described in claim 1, it is characterized in that: the first air inlet detection channel is by left side guide
Air inlet restriction hole (1-s), left side guide's gas source introduction hole (1-r), left side guide's air inlet vertical core (2-g), the first air inlet runner (2-
H), the second gas holds air inlet (2-c) and constitutes；The second air inlet detection channel is by right side guide's air inlet restriction hole (1-w), right side
Guide's gas source introduction hole (1-v), right side guide's air inlet vertical core (2-u), the second air inlet runner (2-i), the first gas hold air inlet (2-
D) it constitutes；First air inlet runner (2-h) and the second air inlet runner (2-i) are arranged in a crossed manner.
3. safe duplex solenoid valve as described in claim 1, it is characterized in that: lower cover (1- is arranged in the bottom of the valve chamber
8) it, is tightly connected between lower cover (1-8) and valve chamber.
4. safe duplex solenoid valve as claimed in claim 3, it is characterized in that: at two groups of valve chamber bottoms of the main valve body (1-1)
First is installed on the lower cover (1-8) in portion respectively close to switch (4) and the second close switch (5).
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 CN106195350A (en) | 2016-12-07 |
| CN106195350B true CN106195350B (en) | 2019-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610882233.8A Active CN106195350B (en) | 2016-10-09 | 2016-10-09 | Safe duplex solenoid valve |
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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 |
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101642967A (en) * | 2009-07-17 | 2010-02-10 | 无锡市拓发自控设备有限公司 | Safety-control double valve for press |
| CN103032606A (en) * | 2012-12-28 | 2013-04-10 | 无锡市拓发自控设备有限公司 | Dual valve with three-level safety function |
| 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 |
| CN206130203U (en) * | 2016-10-09 | 2017-04-26 | 无锡市拓发自控设备有限公司 | Safe pair solenoid valve |
-
2016
- 2016-10-09 CN CN201610882233.8A patent/CN106195350B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101642967A (en) * | 2009-07-17 | 2010-02-10 | 无锡市拓发自控设备有限公司 | Safety-control double valve for press |
| CN103032606A (en) * | 2012-12-28 | 2013-04-10 | 无锡市拓发自控设备有限公司 | Dual valve with three-level safety function |
| 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 |
| CN206130203U (en) * | 2016-10-09 | 2017-04-26 | 无锡市拓发自控设备有限公司 | Safe pair solenoid valve |
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| Publication number | Publication date |
|---|---|
| CN106195350A (en) | 2016-12-07 |
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