CN206017918U - The automatic drive of balanced valve anti-sticking - Google Patents
The automatic drive of balanced valve anti-sticking Download PDFInfo
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- CN206017918U CN206017918U CN201620985506.7U CN201620985506U CN206017918U CN 206017918 U CN206017918 U CN 206017918U CN 201620985506 U CN201620985506 U CN 201620985506U CN 206017918 U CN206017918 U CN 206017918U
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Abstract
A kind of automatic drive of balanced valve anti-sticking, including the feedback pressure interface E of balanced valve and balanced valve, set pressure interface S, control gas source interface P, execution cylinder interface O, control system and connecting pipeline, its main technical school's art are characterized in that the P mouths of balanced valve, install a two-position five-way Pneumatic reversal valve between S mouths, E mouths additional；The two-position five-way Pneumatic reversal valve connects electromagnetic valve and electric Proportion valve respectively, and electric Proportion valve is controlled by PLC, PID controller.This utility model sets pressure by P/I analog quantity output signals to electric Proportion valve, electrically ratio sends the compressed gas source of setting pressure to Pneumatic reversal valve, when P mouths do not have pressure, Pneumatic reversal valve commutates, bleed pressure is transformed into E mouths by S mouths, valve core movement is driven, valve element is in opening, so as to prevent by the stuck phenomenon for causing valve out of control of valve element closure state.The fault rate of valve is greatly reduced, equipment service efficiency is improved, is greatly reduced product percent defective.
Description
Technical field
This utility model is related to a kind of balanced valve anti-sticking automatic drive.
Background technology
The balanced valve of traditional full-automatic EPS forming machines, such as Fig. 1, E connect feedback pressure mouth, and S connects setting pressure port, and P connects control
Source of the gas processed, O connect execution cylinder, and when S mouths pressure is more than E mouth pressure, the control source of the gas of P mouths is executed by O mouths to execution cylinder
Cylinder operation；When S mouths pressure is less than E mouth pressure, middle valve element is moved toward S mouths direction, and the conical surface of valve element 9 is lifted off a seat, P mouths
Control source of the gas and the source of the gas of executor discharge by air vent A, execution cylinder reset；As the control source of the gas of P mouths has necessarily
Humidity and greasy, this balanced valve working environment is 70 degree or so, Gu Shui and greasy very easily dry, so as to stuck valve element, causes
Balanced valve disables, and only shuts down dismounting balanced valve, clears up valve element, recovers normal work.
Content of the invention
This utility model offer is a kind of to be prevented by the stuck phenomenon for causing valve out of control of valve element closure state, greatly reduces
The automatic drive of the balanced valve anti-sticking of the fault rate of valve.
This utility model is achieved by the following technical solution：A kind of automatic drive of balanced valve anti-sticking, bag
The feedback pressure interface E of balanced valve and balanced valve is included, pressure interface S is set, gas source interface P, execution cylinder interface O, control is controlled
System processed and connecting pipeline, its main technical school's art are characterized in that the P mouths of balanced valve, install a two-position five-way gas between S mouths, E mouths additional
Control reversal valve；
The two-position five-way Pneumatic reversal valve connects electromagnetic valve and electric Proportion valve respectively, electric Proportion valve by PLC,
PID controller is controlled.
This utility model provides a kind of automatic drive of balanced valve anti-sticking, P mouths in balanced valve, set pressure S mouths,
A two-position five-way Pneumatic reversal valve is installed additional between feedback E mouths, pressure is set by P/I analog quantity output signals to electric ratio
Valve, electric ratio send the compressed gas source of setting pressure to Pneumatic reversal valve, and when P mouths do not have pressure, Pneumatic reversal valve commutates, gas
Source pressure is transformed into E mouths by S mouths, drives valve core movement, and valve element is in opening, stuck by valve element closure state so as to prevent
Cause the phenomenon that valve is out of control.The fault rate of valve is greatly reduced, equipment service efficiency is improved, product is greatly reduced and is given up
Product rate.
Description of the drawings：
Fig. 1 is the structural representation of the balanced valve of original full-automatic EPS forming machines；
Fig. 2 is structural representation of the present utility model.
Specific embodiment：
As shown in Fig. 2 this structure includes：1- operated pneumatic valves, 2- balanced valves, 3- Pneumatic reversal valves, 4- electromagnetic valves, 5-
PLC, 6-PID controllers, 7- electric Proportion valves, 8- valve execution cylinders, Pneumatic valve R1, Pneumatic valve R2, air vent
A, air vent B.The feedback pressure interface E of balanced valve and balanced valve, sets pressure interface S, controls gas source interface P, execution cylinder
Interface O, control system and connecting pipeline, the P mouths of balanced valve, install a two-position five-way Pneumatic reversal valve additional between S mouths, E mouths.Two
Five logical Pneumatic reversal valve of position connects electromagnetic valve and electric Proportion valve respectively, and electric Proportion valve is controlled by PLC, PID controller.
When pneumatic operated valve 1 does not work, PLC sends out an instruction higher than setting pressure to PID controller, and PID controller is given
To electric Proportion valve, electric Proportion valve exports a corresponding pressure to the P of Pneumatic reversal valve to one analog signals
Mouthful, A mouths are flowed through to the E mouths of balanced valve, promote the past S end motions of balanced valve so that balance is in unlatching exhaust condition.When pneumatic
When valve 1 will work, PLC sends out a switching signal to reversal valve 4, and the dynamic reversal valve 3 of 4 output squeezing gas drive of reversal valve works, another
Road is through balanced valve P mouths, the execution cylinder of O mouths to valve 1, the switch of control valve 1；PLC sends out a setting pressure instruction and gives simultaneously
PID controller, to analog signalses to electric Proportion valve, electric Proportion valve exports one and corresponds PID controller
Pressure to the P mouths of Pneumatic reversal valve, flow through B mouths to the S mouths of balanced valve, promote the past E end motions of balanced valve so that at balance
In closed mode, when pneumatic operated valve 1 works, with the rising of line pressure, the pressure feedback of pipeline is arrived through Pneumatic valve R1 mouths, A mouths
The E mouths of balanced valve, when S mouths pressure is more than E mouth pressure, the control source of the gas of P mouths passes through O mouths to execution cylinder, execution cylinder work
Make；When S mouths pressure is less than E mouth pressure, middle valve element is moved toward S mouths direction, and the conical surface of valve element is lifted off a seat, the control of P mouths
The source of the gas of source of the gas and executor is discharged by air vent A, and execution cylinder resets, and valve closing, by S mouths and the ratio of E mouth pressure
Compared with carrying out the switch of control valve.As this structure is not when valve works, a pressure signal higher than setting pressure is increased
It is sent to the E mouths of balanced valve so that balanced valve is in opening, so as to effectively prevent the stuck of balanced valve.
Claims (2)
1. a kind of automatic drive of balanced valve anti-sticking, including the feedback pressure interface E of balanced valve and balanced valve, sets pressure
Interface S, controls gas source interface P, execution cylinder interface O, control system and connecting pipeline, it is characterised in that the P mouths of balanced valve, S
A two-position five-way Pneumatic reversal valve is installed additional between mouth, E mouths.
2. a kind of automatic drive of balanced valve anti-sticking as claimed in claim 1, it is characterised in that the two-position five-way gas
Control reversal valve connects electromagnetic valve and electric Proportion valve respectively, and electric Proportion valve is controlled by PLC, PID controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620985506.7U CN206017918U (en) | 2016-08-30 | 2016-08-30 | The automatic drive of balanced valve anti-sticking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620985506.7U CN206017918U (en) | 2016-08-30 | 2016-08-30 | The automatic drive of balanced valve anti-sticking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206017918U true CN206017918U (en) | 2017-03-15 |
Family
ID=58254476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620985506.7U Active CN206017918U (en) | 2016-08-30 | 2016-08-30 | The automatic drive of balanced valve anti-sticking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206017918U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352121A (en) * | 2016-08-30 | 2017-01-25 | 杭州方圆塑机股份有限公司 | Automatic driving device for balance valve sticking prevention |
-
2016
- 2016-08-30 CN CN201620985506.7U patent/CN206017918U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352121A (en) * | 2016-08-30 | 2017-01-25 | 杭州方圆塑机股份有限公司 | Automatic driving device for balance valve sticking prevention |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |