CN102418796B - High-pressure plunger type pneumatic valve - Google Patents
High-pressure plunger type pneumatic valve Download PDFInfo
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- CN102418796B CN102418796B CN 201110235074 CN201110235074A CN102418796B CN 102418796 B CN102418796 B CN 102418796B CN 201110235074 CN201110235074 CN 201110235074 CN 201110235074 A CN201110235074 A CN 201110235074A CN 102418796 B CN102418796 B CN 102418796B
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Abstract
The invention discloses a high-pressure plunger type pneumatic valve applied to the high/low-pressure cycle control of a high-pressure foaming machine. The high-pressure plunger type pneumatic valve comprises a hexahedral valve body. The center of the valve body is vertically provided with a plunger type valve element which is in clearance fit with the valve body. An elliptical through hole is formed on the valve element. The opposite two faces of the valve body are provided with an inlet hole and an outlet hole respectively. An inlet flange interface and an outlet flange interface are connected to the outside of the inlet hole and outlet hole of the valve body respectively. The top of the valve body is connected with a standard shifting fork type rotary cylinder of which a drive shaft is connected with the valve element. The bottom of the valve body is provided with a cover plate. The upper and lower parts of the contact surface of the valve body and the valve element are provided with a plurality of rotary Glyd sealing rings. An upper lubricating cup hole and a lower lubricating cup hole are formed on the valve body. The lower part of the valve body is also provided with a lubricating oil groove. The high-pressure plunger type pneumatic valve has long service life and high sealing performance.
Description
Technical field
The invention belongs to field of mechanical technique, be specifically related to a kind of high-pressure plunger type pneumatic valve that is applied in high/low pressure loop control on the high pressure foaming machine.
Background technique
High pressure foaming machine is widely used in household electrical appliances, automotive upholstery, heat preservation construction material industry at home as the key equipment of polyurethane foam, and high/low pressure switching valve is being controlled feed pressure as a critical component in the high pressure foaming machine and set up and pressures cycle.The high/low pressure switching valve of tradition foaming machine generally adopts hydraulic driving valve or high-pressure pneumatic ball valve, the hydraulic driving valve exists that valve body structure complexity, external hydraulic pipeline are many, valve body drives the cylinder seal wearing and tearing and reveals, whether closes fully defectives such as being not easy judgement, cylinder seal spare wearing and tearing post-foaming raw material string might appear to hydraulic oil, cause a series of faults such as damage such as hydraulic-pressure pump, hydrovalve, safeguard that disposal costs are very high, have very big potential safety hazard.The high-pressure pneumatic ball valve causes spool cut wound Sealing to cause Sealing to damage when high pressure switches because spool is spheroid, and Sealing is semi-circular sphere easily, and lack and be not closed completely working life, influences the foaming machine injection precision.
Summary of the invention
The objective of the invention is provides a kind of long service life at the above-mentioned defective that exists in the present technology, the high-pressure plunger type pneumatic valve of good seal performance.
The present invention realizes above-mentioned purpose by the following technical solutions: this high-pressure plunger type pneumatic valve is used for the high/low pressure loop control of high pressure foaming machine; It comprises a hexahedral valve body, and the center of valve body vertically is equipped with the spool of plug type, spool and valve body be installed as Spielpassung; Spool is provided with ellipse hole, the two sides that valve body is relative is provided with inlet opening and exit orifice, and when ellipse hole center line and inlet opening, exit orifice center line being aligned, valve is opened, when the ellipse hole center line became 90 degree angles with inlet opening, exit orifice center line, valve cut out; Outside valve body inlet opening and valve outlet hole, be connected with into flange-interface respectively and go out flange-interface; Be connected with a standard fork type rotary cylinder at the top of valve body, the live axle of cylinder is connected with spool and drives valve core rotation; Bottom at valve body is equipped with cover plate; Be provided with several rotation lattice Lay seal rings in the upper and lower position of valve body and spool surface of contact; On valve body is provided with lubrication ring hole and following lubrication ring hole and be connected to valve body and the surface of contact of spool on, valve body lower portion also be provided with oil groove and be connected to valve body and the surface of contact of spool on.
Further, the top of described standard fork type rotary cylinder is equipped with an eccentric induction wheel by the live axle of cylinder, be equipped with in the periphery that cylinder head is positioned at eccentric induction wheel and close induction switch and to open induction switch, two switches are mutually 90 degree angles, when valve is in closed condition, eccentric induction wheel rotates to induction with live axle and closes the position of induction switch, and when valve was in open mode, eccentric induction wheel rotated to the position that induction switch is opened in induction with live axle; All parts of described cylinder head are installed in the hemisphere protective housing.
More particularly, the assemblage gap of spool and valve body is the 0.01-0.02 millimeter.
High-pressure plunger pneumatic valve of the present invention adopts the plunger type spool, rotates the Glais ring sealing up and down, and spool can the scratch Sealing when high-voltage switch gear, so long service life, good seal performance.Set up oil groove at the valve seal position, lubricant oil has been imported spool lubricate, reduced the spool wearing and tearing, improved working life.Also be equipped with by eccentric induction wheel on the plug type pneumatic valve of the present invention and close, open the detection device that induction switch etc. is formed; detect the switching signal of valve body synchronously; when the valve body malfunction, can send signal and carry out alarm and protection, improve device '.
Description of drawings
Fig. 1 is the plan view of the embodiment of the invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the plan view of Fig. 1.
Fig. 4 is the stereogram of valve body among Fig. 1.
Embodiment
The present invention is further detailed explanation below in conjunction with drawings and Examples.
Referring to Fig. 1 and Fig. 4, present embodiment comprises valve body 2, as seen from Figure 4, valve body 2 be one near the member of square body.The spool 3 of plug type vertically is installed at the center of valve body 2, the Spielpassung that is installed as of spool 3 and valve body 2, its assemblage gap is the 0.01-0.02 millimeter.Spool 3 is provided with ellipse hole 15, be provided with inlet opening 16 and exit orifice 17 on valve body 2 relative two sides, the left and right sides, during the center line being aligned of the center line of ellipse hole 15 and inlet opening 16, exit orifice 17, valve is opened, when the center line of ellipse hole 15 became 90 degree angles with the center line of inlet opening 16, exit orifice 17, valve cut out; Outside valve body inlet opening 16 and valve outlet hole 17, be connected with into flange-interface 6 respectively and go out flange-interface 18 by screw.As seen from Figure 1, be connected with a standard fork type rotary cylinder 1 at the top of valve body 2, the live axle 11 of cylinder 1 is connected with spool 3 and drives spool 3 and rotates; In the bottom of valve body 2 cover plate 5 is installed.Referring to Fig. 3, live axle 11 at the top of standard fork type rotary cylinder 1 by cylinder is equipped with an eccentric induction wheel 8, be equipped with in the periphery that cylinder head is positioned at eccentric induction wheel 8 and close induction switch 9 and to open induction switch 10, two switches are mutually 90 degree angles, when valve is in closed condition, eccentric induction wheel 8 rotates to induction with live axle 11 and closes the position of induction switch 9, when valve was in open mode, eccentric induction wheel 8 rotated to the position that induction switch 10 is opened in induction with live axle 11; All parts of above-mentioned cylinder head are installed in the hemisphere protective housing 7.Referring to Fig. 2, be provided with 4 rotation lattice Lay seal rings 4 in the upper and lower position of valve body 2 and spool 3 surface of contact; Be provided with lubrication ring hole 12 and following lubrication ring hole 13 in valve body 2 front portions and be connected on the surface of contact of valve body 2 and spool 3, also be provided with oil groove 14 in the bottom of valve body 2 and be connected on the surface of contact of valve body 2 and spool 3.
The present invention adopts standard fork type rotary cylinder 1 to drive, and utilizes the pressurized air can be with air cylinder driven axle 11 half-twists.When air cylinder driven axle 11 is in 90 ° of positions as shown in Figure 3, live axle 11 drives spool 3 and also keeps 90 ° of positions, 17 one-tenth 90 ° of angles of ellipse hole 15 on the spool 3 and valve body inlet opening 16 and valve outlet hole, this moment, valve body inlet opening 16 was sealed with exit orifice 17, and namely valve cuts out.Eccentric induction wheel 8 has also rotated 90 ° and sense and close induction switch 9, and induction switch sends the signal indication valve and closes.When air cylinder driven axle 11 utilizes pressurized air to rotate in shown in Figure 30 °, live axle 11 drives spool 3 and also runs to 0 ° of position, 17 one-tenth 0 ° of angles of ellipse hole 15 on the spool 3 and valve body inlet opening 16 and valve outlet hole, this moment, valve body inlet opening 16 and valve outlet hole 17 were communicated with, and namely valve is opened.Eccentric induction wheel 8 has also rotated to 0 ° and sense and open induction switch 10, and induction switch sends the signal indication valve and opens.Therefore induction switch can detect the operation conditions of valve body, and whole induction system is installed in the hemisphere protective housing 7, is in order to protect induction switch not to be subjected to interference such as impurity and to guarantee the beautiful shape of whole valve.Spool 3 is the 0.01-0.02 millimeter with the assemblage gap of valve body 2, to guarantee sealing effect.The two sides, the left and right sides of valve body 2 is provided with into and out of two flange-interfaces so that pipe laying.The different big ting models of the ellipse through hole of offering at spool 3 can become the valve of a series of different bores.Surface of contact at spool and valve body is installed a plurality of rotation Glais rings, can guarantee that whole valve seal is good.Valve body lower portion is installed cover plate 5, can play seal action and remove unnecessary grease when pulling down.Valve body 2 is provided with oil groove 14, and the last lubrication ring hole 12 of setting and following lubrication ring hole 13 can prolong the working life of valve greatly by being installed in outside lubrication ring intermittent oiling spool and Sealing.Therefore, valve of the present invention has when high pressure and to switch rapidly, and little to sealing part abrasion, valve body structure is simple, and maintenance cost is low, characteristics such as long service life.
Claims (3)
1. a high-pressure plunger type pneumatic valve is used for the high/low pressure loop control of high pressure foaming machine; It is characterized in that: it comprises a hexahedral valve body, and the center of valve body vertically is equipped with the spool of plug type, spool and valve body be installed as Spielpassung; Spool is provided with ellipse hole, the two sides that valve body is relative is provided with inlet opening and exit orifice, and when ellipse hole center line and inlet opening, exit orifice center line being aligned, valve is opened, when the ellipse hole center line became 90 degree angles with inlet opening, exit orifice center line, valve cut out; Outside valve body inlet opening and valve outlet hole, be connected with into flange-interface respectively and go out flange-interface; Be connected with a standard fork type rotary cylinder at the top of valve body, the live axle of cylinder is connected with spool and drives valve core rotation; Bottom at valve body is equipped with cover plate; Be provided with several rotation lattice Lay seal rings in the upper and lower position of valve body and spool surface of contact; On valve body is provided with lubrication ring hole and following lubrication ring hole and be connected to valve body and the surface of contact of spool on, valve body lower portion also be provided with oil groove and be connected to valve body and the surface of contact of spool on.
2. high-pressure plunger type pneumatic valve according to claim 1, it is characterized in that: the top of described standard fork type rotary cylinder is equipped with an eccentric induction wheel by the live axle of cylinder, be equipped with in the periphery that cylinder head is positioned at eccentric induction wheel and close induction switch and to open induction switch, two switches are mutually 90 degree angles, when valve is in closed condition, eccentric induction wheel rotates to induction with live axle and closes the position of induction switch, when valve was in open mode, eccentric induction wheel rotated to the position that induction switch is opened in induction with live axle; All parts of described cylinder head are installed in the hemisphere protective housing.
3. high-pressure plunger type pneumatic valve according to claim 1 and 2, it is characterized in that: the assemblage gap of spool and valve body is the 0.01-0.02 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110235074 CN102418796B (en) | 2011-08-16 | 2011-08-16 | High-pressure plunger type pneumatic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110235074 CN102418796B (en) | 2011-08-16 | 2011-08-16 | High-pressure plunger type pneumatic valve |
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| Publication Number | Publication Date |
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| CN102418796A CN102418796A (en) | 2012-04-18 |
| CN102418796B true CN102418796B (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110235074 Active CN102418796B (en) | 2011-08-16 | 2011-08-16 | High-pressure plunger type pneumatic valve |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6277051B2 (en) * | 2014-04-22 | 2018-02-07 | 東京応化工業株式会社 | Plug valve, liquid supply method, liquid supply apparatus, and coating apparatus |
| CN107521059B (en) * | 2017-07-31 | 2020-01-14 | 西安理工大学 | High-viscosity fluid metering device for vacuum injection molding machine |
| CN114777002B (en) * | 2022-04-27 | 2023-12-01 | 启东德乐润滑设备有限公司 | Lubricating oil system control valve group capable of regulating pressure and distributing flow |
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| GB2441547A (en) * | 2006-09-08 | 2008-03-12 | Pacson Ltd | Cartridge valve |
| CN201273380Y (en) * | 2008-09-11 | 2009-07-15 | 开维喜阀门集团有限公司 | Four-way reversing double-seal stop cock |
| RU2378549C1 (en) * | 2008-07-25 | 2010-01-10 | Открытое акционерное общество "Машиностроительный завод "Арсенал" (ОАО "МЗ "Арсенал") | Koskinen cylindrical valve |
| CN201547298U (en) * | 2009-11-26 | 2010-08-11 | 浙江维都利阀门制造有限公司 | Severe service resisting fixed type cock valve |
| CN201589000U (en) * | 2009-12-14 | 2010-09-22 | 兰州高压阀门有限公司 | Pneumatic lifting-revolving cock valve with functions of high temperature, high pressure and abrasion resistance |
| DE102009015976A1 (en) * | 2009-03-26 | 2010-10-07 | Festo Ag & Co. Kg | Valve with rotatable valve member |
| EP2280203A2 (en) * | 2009-07-30 | 2011-02-02 | Shuichi Okabe | Sanitary rotary valve |
| CN102052476A (en) * | 2009-11-02 | 2011-05-11 | 张雄飞 | Novel plug valve |
| CN201827498U (en) * | 2010-10-28 | 2011-05-11 | 浙江博恩自控阀门有限公司 | Shifting fork type actuator |
| CN201836431U (en) * | 2010-10-28 | 2011-05-18 | 王硕明 | Fully screwed cock valve |
-
2011
- 2011-08-16 CN CN 201110235074 patent/CN102418796B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2441547A (en) * | 2006-09-08 | 2008-03-12 | Pacson Ltd | Cartridge valve |
| RU2378549C1 (en) * | 2008-07-25 | 2010-01-10 | Открытое акционерное общество "Машиностроительный завод "Арсенал" (ОАО "МЗ "Арсенал") | Koskinen cylindrical valve |
| CN201273380Y (en) * | 2008-09-11 | 2009-07-15 | 开维喜阀门集团有限公司 | Four-way reversing double-seal stop cock |
| DE102009015976A1 (en) * | 2009-03-26 | 2010-10-07 | Festo Ag & Co. Kg | Valve with rotatable valve member |
| EP2280203A2 (en) * | 2009-07-30 | 2011-02-02 | Shuichi Okabe | Sanitary rotary valve |
| CN102052476A (en) * | 2009-11-02 | 2011-05-11 | 张雄飞 | Novel plug valve |
| CN201547298U (en) * | 2009-11-26 | 2010-08-11 | 浙江维都利阀门制造有限公司 | Severe service resisting fixed type cock valve |
| CN201589000U (en) * | 2009-12-14 | 2010-09-22 | 兰州高压阀门有限公司 | Pneumatic lifting-revolving cock valve with functions of high temperature, high pressure and abrasion resistance |
| CN201827498U (en) * | 2010-10-28 | 2011-05-11 | 浙江博恩自控阀门有限公司 | Shifting fork type actuator |
| CN201836431U (en) * | 2010-10-28 | 2011-05-18 | 王硕明 | Fully screwed cock valve |
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| CN102418796A (en) | 2012-04-18 |
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