CN100342163C - Guide valve gear for pneumatic control - Google Patents
Guide valve gear for pneumatic control Download PDFInfo
- Publication number
- CN100342163C CN100342163C CNB2004100987236A CN200410098723A CN100342163C CN 100342163 C CN100342163 C CN 100342163C CN B2004100987236 A CNB2004100987236 A CN B2004100987236A CN 200410098723 A CN200410098723 A CN 200410098723A CN 100342163 C CN100342163 C CN 100342163C
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- China
- Prior art keywords
- valve
- spool
- mentioned
- diaphragm
- intakeport
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0236—Diaphragm cut-off apparatus
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
- Multiple-Way Valves (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
The present invention relates to a guide valve gear for pneumatic control for operating valve or other control mechanism of the machine. The invention comprises: a valve body having a first and a second air intake port, a first and a second air exhaust port; a through hole extending in the direction of axle along the inside of the valve body and connecting to the atmosphere, a valve core forming hollow channel; a lifting valve dish having above valve core 30 two ends open or close, and a first and second valve dishes connecting to said first and second air intake port, first and second air exhaust port, and controlling the open and close of the first and second valve core base, and having valve core base valve dish; a first and a second deflection members supplying deflection force moving to the valve core direction to said first and second valve dishes. The valve body inside space containing said valve core is separated into some diaphragms. The invention has a double acting structure, and adopts diaphragm without fiction, which can adjust press output in line.
Description
Technical field
The present invention is the invention of relevant guide valve gear for pneumatic control, says definitely and especially adopts dbl act operation, the guide valve gear for pneumatic control valve that moves by diaphragm.
Background technique
Guide valve gear for pneumatic control is valve or the machine that is used for other in general, plays the general designation of the air pressure regulator of booster action in order to operate the control machine.
In the middle of the conventional art, congratulate the single-lift diaphragmatic type pilot valve mechanism of the green lattice of youngster (HOERBIGER) and the dbl act O-annular pilot valve mechanism of SMC and widely utilized by the people in the industry.
The former, very outstanding to the operating characteristics of diaphragm, but because poppet valve only has 1, and be single-lift, therefore be applicable to and carry out some simple controls.
The latter is the double action structure with 2 poppet valves, is applicable to complicated operations, but because the friction of O-loop configuration causes control performance relatively poor.Add that the phenomenon of air leakage often takes place at the position that the O-annular is installed, and therefore substandard product often occurs, and the delivery pressure of this product is the form of ON/OFF, therefore has the problem of controlled conditions harshness.
Existing dbl act structure, the pilot valve mechanism that adds diaphragmatic type is optimal structure.The guide valve gear for pneumatic control that has such two kinds of structures is a kind of unprecedented technology.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of structure is dbl act, and has diaphragm, and control performance is superior, the guide valve gear for pneumatic control that disqualification rate is low.
To achieve these goals, the guide valve gear for pneumatic control among the present invention, other valve and machine on carry out auxiliary operation, its feature comprises:
Valve body comprises the 1st intakeport and the 2nd intakeport that is connected the air supply source and respectively is connected on above-mentioned the 1st intakeport and the 2nd intakeport, operates the 1st relief opening and the 2nd relief opening of control mechanism by discharging pressurized air; Spool prolongs along axle direction at above-mentioned valve inner, and has the through hole that is connected with atmosphere, and is formed with the path of hollow along center line; The 1st poppet valve, the 2nd poppet valve, comprise lifting valve disc and the spool base valve disc of being responsible for opening and closing above-mentioned spool two ends, and spool base valve disc is used to open and close the 1st spool base and the 2nd spool base that connects above-mentioned the 1st intakeport, the 2nd intakeport and the 1st relief opening, the 2nd relief opening; The 1st deflection parts and the 2nd deflection parts provide angular force that above-mentioned the 1st poppet valve and the 2nd poppet valve are moved to the direction of spool separately; A plurality of diaphragms, be arranged to above-mentioned inner space of accommodating the valve body of spool is divided into and atmosphere is connected space, accommodate the certain pressure air the space, accommodate the space of piezoelectric pressure variator institute exhausting air.
According to guide valve gear for pneumatic control provided by the invention, has following effect.
At first, structure adopts dbl act and does not have the diaphragm form of frictional force, and delivery pressure can carry out linear adjusting, and this invention is compared with the O-loop configuration has more outstanding control performance.
Secondly, poppet valve does not adopt the structure of O-annular, can prevent because the low phenomenon of control performance that friction produces.
Add, can cut off the inflow of air fully, can prevent to take place the phenomenon of trickle air leakage from O-annular of the prior art position by diaphragm.This makes the product disqualification rate of pilot valve mechanism obtain tangible reduction, has the effect of highly significant on improving the quality of products.
Description of drawings
Fig. 1 is the generalized section of the guide valve gear for pneumatic control in according to the present invention.
Fig. 2 and Fig. 3 schematic representation during for starting state of the present invention.
The explanation of ※ reference numeral
12: the 2 housings of 11: the 1 housings
14: the 4 housings of 13: the 3 housings
30: 31: the 1 auxiliary spools of spool
35: 41: the 1 poppet valves of through hole
42: the 2 poppet valve 41a: the 1st promotes valve disc
42a: the 2nd promotes valve disc 41b: the 1st spool base valve disc
42b: the 2nd spool base valve disc
52: the 2 intakepories of 51: the 1 intakepories
54: the 2 relief openings of 53: the 1 relief openings
62: the 2 diaphragms of 61: the 1 diaphragms
64: the 4 diaphragms of 63: the 3 diaphragms
70: 81: the 1 deflections of lid parts
82: the 2 deflection parts 90: adjust screw
Embodiment
Below desirable installation example reference accompanying drawing is described.
Fig. 1 is the overall schematic of the guide valve gear for pneumatic control of making according to the present invention.
Pilot valve mechanism among the present invention is installed in positions such as positioning work piece inside in order to carry out air pressure control, the spool that it comprises valve body and is installed in above-mentioned valve inner.
Above-mentioned valve inner has a plurality of the 1st housing the 11, the 2nd housing the 12, the 3rd housing the 13, the 4th housing the 14, the 5th housings of cutting apart 15, relies on screw to interconnect.Certain above-mentioned valve body itself can be as a whole.
The right-hand member of above-mentioned valve body promptly is equipped with regulator 20 on the 5th housing 15.This regulator 20 obtains the air pressure of main line (mainline) (marking among the figure) and maintains certain pressure, i.e. 14kgf/cm during piezoelectric pressure transducer (marking among the figure) performance optimum performance
2Pressure.The space that forms between the space that forms between the 2nd diaphragm 62 described later and the 3rd diaphragm 63 and the 3rd diaphragm 63 and the 4th diaphragm 64 provides stable air pressure.
Above-mentioned spool 30 prolongs with the direction of valve body along axle.This spool 30 is provided with fixing auxiliary spool 31,32 separately along the two ends of axle.Above-mentioned spool 30 and auxiliary spool (End Spool) 31,32 forms the structure of general hollow along center line.In order to make explanation more succinct, the auxiliary spool 31 in left side is called " the 1st auxiliary spool ", and the auxiliary spool 32 on right side is called " the 2nd auxiliary spool ".
Above-mentioned the 1st auxiliary spool 31 is terminal by 41 switchings of the 1st poppet valve, and above-mentioned the 2nd auxiliary spool 32 terminal the 2nd poppet valves 42 that pass through open and close.
Above-mentioned the 1st poppet valve 41 and the 2nd poppet valve 42 have same shape, and it comprises: in order to make above-mentioned the 1st auxiliary spool 31 and the 2nd auxiliary spool 32 freely openables, be the 1st of hemispherical dome structure and promote valve disc 41a, the 2nd lifting valve disc 42a; For the 1st spool base 11a on the 1st housing 11 and the 5th housing 15 and the 2nd spool base 15a are opened and closed, be the 1st spool base valve disc 41b, the 2nd spool base valve disc 42b of domed ends.
Above-mentioned the 1st spool base 11a connects the 1st intakeport 51 and the 1st relief opening 53.Above-mentioned the 1st intakeport 51 sucks air in order to drive positioning work piece from main line.Above-mentioned the 1st relief opening 53 is discharged the air of supplying with and pass through the 1st spool base 11a from the 1st intakeport 51, to drive positioning work piece.
Above-mentioned the 2nd spool base 15a connects the 2nd intakeport 52 and the 2nd relief opening 54.Above-mentioned the 1st intakeport 52 sucks air in order to drive positioning work piece in main line.Above-mentioned the 2nd relief opening 54 is discharged the air of supplying with and pass through the 2nd spool base 15a from the 2nd intakeport 52, to drive positioning work piece.For above-mentioned the 1st spool base 11a can be moved along the axle direction of valve body, it is installed on first housing 11.
In addition, above-mentioned spool 30 is by the 1st diaphragm the 61, the 2nd diaphragm the 62, the 3rd diaphragm the 63, the 4th diaphragm 64 elastic support.These the 1st diaphragm the 61, the 2nd diaphragm the 62, the 3rd diaphragm the 63, the 4th diaphragms 64 are cut apart the inner space of the valve body that spool 30 is held.
Above-mentioned the 1st diaphragm 61 is fixed on valve body and the spool 30, is located between the 1st housing 11 and the 2nd housing 12.The space that has the hollow passage 34 that connects the 1st intakeport 51, the 1 relief openings 53 and spool 30 hollow spaces between the 1st diaphragm 61 and the 1st spool base 11a.
Above-mentioned the 2nd diaphragm 62 is fixed on valve body and the spool 30, is located between the 2nd housing 12 and the 3rd housing 13.Be formed with the space that is in communication with the outside between the 1st diaphragm 61 and the 2nd diaphragm 62, the through hole 35 of this space by being formed on above-mentioned spool 30 is connected to the hollow passage 34 of spool 30.
Above-mentioned the 3rd diaphragm 63 is fixed on valve body and the spool 30, is located between the 3rd housing 13 and the 4th housing 14.Between the 2nd diaphragm 62 and the 3rd diaphragm 63, be formed with the space that can suck according to predefined certain pressure air from the suction port 55 of piezoelectricity control.
Above-mentioned the 4th diaphragm 64 is fixed on valve body and the spool 30, is located between the 4th housing 14 and the 5th housing 15.Between the 3rd diaphragm 63 and the 4th diaphragm 64, there is the space that connects the 2nd intakeport 52, the 2 relief openings 54 and be formed on the hollow passage 34 of spool 30 hollow spaces.
Form the surface of the spool 30 that is arranged in 63 liang of end spaceses of above-mentioned the 3rd diaphragm this moment, with the vertical surface that forms of the axle direction of this spool 30, the air pressure that promptly is applied to the cell area is sent the active force that above-mentioned spool 30 is moved.The area that designs last the 3rd diaphragm 63 right side cells is bigger than the area of the 3rd diaphragm 63 left side cells, and the air of supplying with to above-mentioned piezoelectricity control suction port 55 moves spool 30 left sides, and when air-breathing being cut off, spool 30 moves to the right.
Above-mentioned valve body left end intercepts by lid 70.Above-mentioned the 1st poppet valve 41 provides the angular force of direction to the right by the 1st deflection parts 81.Above-mentioned the 2nd poppet valve 42 provides the angular force of direction to the left by the 2nd deflection parts 82.At this moment, above-mentioned lid 70 relies on the baffle ring of C type to be fixed on the 1st housing 11, and above-mentioned the 1st deflection parts 81 and the 2nd deflection parts 82 employing helical springs are good.
In addition, at above-mentioned the 1st housing 11 the adjustment screw 90 that moves along the valve body radial direction is housed.Drive the 1st spool base 11a when this adjustment screw 90 is moved and move along the axle direction of valve body, this adjusts screw 90 front end positions and the face of the 1st spool base 11a that contacts with this position, has certain angle of inclination with respect to the axle direction of valve body.
The adjusting screw 90 of retaining screw 22 and the 1st housing 11 by regulator 20 is set the setting pressure of regulator 20 and the position of the 1st spool base 11a.
The former is the 1.4kgf/cm of the state of the delivery pressure with regulator 20 when maintaining piezoelectric pressure transducer performance optimum performance
2
The latter has the function of regulating distance between the 1st poppet valve 41 and the 2nd poppet valve 42.Rely on the adjustment of adjusting screw 90, when the 1st spool base 11a is mobile to the left, enlarged the distance between the poppet valve, thereby have the advantage that improves pilot valve mechanism susceptibility.On the contrary, when mobile to the right, the distance between the poppet valve reduces, and has non-oscillatory advantage as the 1st spool base 11a.
At first, according to the control of piezoelectric pressure transducer, the situation when piezoelectricity control suction port 55 air supplies describes.
During from piezoelectricity control suction port 55 air supplies, be applied on the right side cell area of the 3rd diaphragm 63 air pressure as shown by arrow A, cause spool 30 to move to the left.Fixedly installing the left end of this spool and the 1st auxiliary spool 31 and the 2nd auxiliary spool 32 of right-hand member also moves to the left with spool 30.
Above-mentioned the 1st auxiliary spool 31 promotes the 1st poppet valve 41 to the left.The 1st promotes valve disc 41a cuts off by the air passageways that the 1st auxiliary spool 31 ends will lead to hollow passage 34.Open the 1st spool base 11a of the 1st spool base valve disc 41b is connected the 1st intakeport 51 with the 1st relief opening 53.Therefore the air of supplying with at main line is also discharged by the 1st intakeport 51, the 1 spool base 11a and the 1st relief opening 53, to drive positioning work piece.
The gap appears between above-mentioned the 2nd auxiliary spool 32 and the 2nd poppet valve 42.The 2nd promotes valve disc 42a cuts off by the air passageways that the 2nd auxiliary spool 32 ends will lead to hollow passage 34.The 2nd spool base valve disc 42b intercepts the 2nd spool base 15a along with the expansion of the 2nd deflection parts 82, thereby the 2nd intakeport 52 and the 2nd relief opening 54 is isolated.Therefore the 2nd relief opening 54 is communicated with atmosphere by the through hole 35 on the hollow passage 34 that forms spool 30, and can not discharge by the 2nd relief opening 54 from the air that main line is supplied with.
Below just relevant control by the piezoelectric pressure transducer, the situation when controlling air that suction port 55 supplies with to piezoelectricity and cut off describes (please refer to Fig. 3).
When the air of supplying with to piezoelectricity control suction port 55 was cut off, the air pressure that is applied on the 3rd diaphragm 63 right side housing areas was eliminated.Institute's applied pressure is as arrow A on this moment the 3rd diaphragm 63 left side housing areas ' shown in, cause spool 30 to move to the right.Be fixed on the 1st auxiliary spool 31 of the left end of this spool 30 and right-hand member and the 2nd auxiliary spool 32 also along with spool 30 moves to the right.
Above-mentioned the 2nd auxiliary spool 32 promotes the 2nd poppet valve 42 to the right, and the 2nd promotes valve disc 42a then will lead to hollow passage 34 by the end of the 2nd auxiliary spool 32 air inflow passageway shuts off.Open the 2nd spool base 15a of the 2nd spool base valve disc 42b, thus the 2nd intakeport 52 is connected with the 2nd relief opening 54.Therefore the air of supplying with at main line is discharged by the 2nd intakeport 52, the 2 spool base 15a and the 2nd relief opening 54, thereby drives positioning work piece.
The gap appears between above-mentioned the 1st auxiliary spool 31 and the 1st poppet valve 41.The 1st promotes valve disc 41a will lead to hollow passage 34 by the 1st auxiliary spool 31 air-passage opening.The 1st spool base valve disc 41b intercepts the 1st spool base 11a along with the expansion of the 1st deflection parts 81, thereby the 1st intakeport 51 and the 1st relief opening 53 is isolated.Therefore the 1st intakeport 51 is communicated with atmosphere by the through hole 35 that is formed on spool 30 hollow passage 34.To can not discharge from the air that main line is supplied with from the 1st relief opening 53.
Claims (3)
1, a kind of guide valve gear for pneumatic control, its feature comprises:
Valve body, comprise the 1st intakeport (51) and the 2nd intakeport (52) that are connected the air supply source, respectively be connected above-mentioned the 1st intakeport (51) and the 2nd intakeport (52), operate the 1st relief opening (53) and the 2nd relief opening (54) of control mechanism by discharging pressurized air;
Spool (30) prolongs along axle direction at above-mentioned valve inner, and has the through hole (35) that is connected with atmosphere, and is formed with the path (34) of hollow along center line;
The 1st poppet valve (41), the 2nd poppet valve (42), comprise that opening and closing the 1st of above-mentioned spool (30) two ends promotes valve disc (41a) and the 2nd and promote valve disc (42a) and the 1st spool base valve disc (41b), the 2nd spool base valve disc (42b), and the 1st spool base valve disc (41b), the 2nd spool base valve disc (42b) are used to open and close the 1st spool base (11a) and the 2nd spool base (15a) of above-mentioned the 1st, the 2nd intakeport of connection and the 1st, the 2nd relief opening;
The 1st deflection parts (81) and the 2nd deflection parts (82) provide angular force that above-mentioned the 1st poppet valve (41) and the 2nd poppet valve (42) are moved to the direction of spool (30) separately;
The 1st diaphragm (61), the 2nd diaphragm (62), the 3rd diaphragm (63), the 4th diaphragm (64), with the above-mentioned space that the valve inner space is divided into and atmosphere is connected of accommodating spool (30), accommodate the certain pressure air the space, accommodate the space of piezoelectric pressure variator institute exhausting air.
2, guide valve gear for pneumatic control as claimed in claim 1, it is characterized by: above-mentioned the 1st spool base (11a) moves freely along the axle direction of valve body, and above-mentioned the 1st spool base (11a) moves by the adjusting screw (90) that moves along the valve body radial direction.
3, guide valve gear for pneumatic control as claimed in claim 1 is characterized by: above-mentioned the 1st deflection parts (81) and the 2nd deflection parts (82) adopt the elastic helix spring.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2020040013314 | 2004-05-13 | ||
| KR20-2004-0013314U KR200357373Y1 (en) | 2004-05-13 | 2004-05-13 | Pilot valve assembly for pneumatic passage control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1696555A CN1696555A (en) | 2005-11-16 |
| CN100342163C true CN100342163C (en) | 2007-10-10 |
Family
ID=35349394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100987236A Active CN100342163C (en) | 2004-05-13 | 2004-12-14 | Guide valve gear for pneumatic control |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR200357373Y1 (en) |
| CN (1) | CN100342163C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101285242B1 (en) | 2011-08-31 | 2013-07-11 | 주식회사 영텍 | A pilot structure for a pneumatic positioner |
| CN104100739B (en) * | 2014-07-25 | 2016-08-31 | 株洲壹星科技股份有限公司 | Gas control combination valve and using method thereof |
| KR101929262B1 (en) * | 2016-12-23 | 2019-03-13 | 차형규 | Air pressure adjustment pilot valve assembly |
| DE102019003379A1 (en) | 2019-05-14 | 2020-11-19 | AVENTlCS GmbH | Diaphragm seat valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4821776A (en) * | 1986-01-31 | 1989-04-18 | Fujikura Rubber Ltd | Air pilot operated directional control valve |
| JPH07317943A (en) * | 1994-05-24 | 1995-12-08 | Sekisui Chem Co Ltd | Vacuum valve |
| US5931187A (en) * | 1998-03-26 | 1999-08-03 | Williams Instrument Incorporated | Valve system for restarting oscillating controller |
| US6019121A (en) * | 1997-01-07 | 2000-02-01 | Smc Kabushiki Kaisha | Pressure reducing valve |
-
2004
- 2004-05-13 KR KR20-2004-0013314U patent/KR200357373Y1/en not_active IP Right Cessation
- 2004-12-14 CN CNB2004100987236A patent/CN100342163C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4821776A (en) * | 1986-01-31 | 1989-04-18 | Fujikura Rubber Ltd | Air pilot operated directional control valve |
| JPH07317943A (en) * | 1994-05-24 | 1995-12-08 | Sekisui Chem Co Ltd | Vacuum valve |
| US6019121A (en) * | 1997-01-07 | 2000-02-01 | Smc Kabushiki Kaisha | Pressure reducing valve |
| US5931187A (en) * | 1998-03-26 | 1999-08-03 | Williams Instrument Incorporated | Valve system for restarting oscillating controller |
Also Published As
| Publication number | Publication date |
|---|---|
| KR200357373Y1 (en) | 2004-07-27 |
| CN1696555A (en) | 2005-11-16 |
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| CP01 | Change in the name or title of a patent holder |
Address after: Han Guojingjidao Patentee after: Rotoc YTC Co., Ltd Address before: Han Guojingjidao Patentee before: Youngtae Co., Ltd. |