CN105983975B - A kind of vacuum loop - Google Patents
A kind of vacuum loop Download PDFInfo
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- CN105983975B CN105983975B CN201510328849.6A CN201510328849A CN105983975B CN 105983975 B CN105983975 B CN 105983975B CN 201510328849 A CN201510328849 A CN 201510328849A CN 105983975 B CN105983975 B CN 105983975B
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Abstract
A kind of vacuum loop, for automation equipments such as manipulators.Double automatically controlled supply solenoid valves and air admission valve are connect with gas source, double automatically controlled supply solenoid valves are connected through the air inlet port of energy-saving valve and vacuum generator, the air outlet of air admission valve and vacuum generator connects, and check valve is equipped between the V port and sucker and negative pressure switch of vacuum generator；The air outlet of negative pressure switch sensor and vacuum generator connects, and the input port of negative pressure switch signal wire and controller connects；Double automatically controlled supply solenoid valves, energy-saving valve and the coil of air admission valve and the output port of controller connect；The setting of two vacuum values built in controller, vacuum adsorption confirmation signal value is more than energy saving signal value of feedback.The present invention can be achieved to maintain vacuum loop sealing state, so that compressed air consumption is fallen sharply, shortens the noise duration, solves the problems, such as that minor items take off on sucker and does not fall the vacuum state memory function, it can be achieved that under unexpected power blackout situation.
Description
Technical field
It is specifically a kind of energy saving, true for manipulator, the collection of automation equipment the present invention relates to vacuum suction technical field
Sky destroys, power-off vacuum memory is in the vacuum loop of one.
Background technology
Currently, most of taking mechanical hand and automation equipment, absorption, carry an object mostly use vacuum generator, profit
Positive pressure is converted into negative pressure to generate vacuum with compressed air, can be used cooperatively with jig plate and take out subtle product.Vacuum occurs
Utensil has the advantages that small, light weight and fast response time, using very extensive.It has a disadvantage in that：
It needs persistently to consume a large amount of compressed air when 1, generating vacuum, noise is persistently generated again during exhaust；
2, because of the reasons such as electrostatic, stickiness, so that microminiature product is adsorbed on sucker and take off not fall；
3, suddenly after power-off, it can not judge that vacuum is to need to continue to or need to close.
In the prior art frequently with vacuum loop mainly by single automatically controlled supply solenoid valve, vacuum generator, negative pressure switch
It is formed with sucker.Its working principle is that:Single automatically controlled supply solenoid valve obtains electric, vacuum generator generation vacuum suction workpiece, single electricity
Control supply solenoid valve dead electricity, vacuum state disappear, and workpiece is released.But vacuum loop after single automatically controlled supply solenoid valve dead electricity not
Air-tight state, vacuum can be maintained to be destroyed quickly.This need single automatically controlled supply solenoid valve persistently electric be just maintained vacuum shape
State consumes a large amount of compressed gas and electric energy while persistently generating vacuum.And in the case of unexpected power-off, due to vacuum
State cannot maintain, and cause workpiece to fall, break or injure the accidents such as operating personnel by a crashing object.
Invention content
In order to overcome the deficiencies of the prior art, goal of the invention of the invention is to provide a kind of vacuum loop, with realize it is energy saving,
The purpose of vacuum breaking, power-off vacuum memory.
For achieving the above object, double automatically controlled supply solenoid valves of the invention and air admission valve are connect with gas source,
Double automatically controlled supply solenoid valves are connected through the air inlet port of energy-saving valve and vacuum generator, and air admission valve and vacuum generator go out
Gas port connects, and check valve is equipped between the air outlet and sucker and negative pressure switch of vacuum generator.
The negative pressure switch includes negative pressure switch sensor, negative pressure switch signal wire；Negative pressure switch sensor is sent out with vacuum
The input port of the air outlet connection of raw device, negative pressure switch signal wire and controller connects；It is double automatically controlled supply solenoid valves, energy saving
The output port of the coil and controller of valve and air admission valve connects.
Two vacuum values built in the controller, first vacuum values are for the true of external feedback sorption confirmation signal
Confirmation signal value in suction；Second vacuum values is the energy saving signal value of feedback for controlling the energy-saving valve start and stop, described true
The setting that confirmation signal value in suction is more than energy saving signal value of feedback.
The operation principle of the present invention：When vacuum adsorption state, it is double it is automatically controlled supply solenoid valves a coils obtain it is electric, another
Coil losing electricity, gas source is by P3End flow to the ends A, due to energy-saving valve not it is electric, lead to vacuum generator gas circuit be connected to, rapidly
Vacuum is generated, after negative pressure switch detects that vacuum degree reaches the energy saving signal value of feedback, controller starts an inside
Timer, at this time vacuum degree continue to rising, timer reach setting time after, it is electric that controller makes energy-saving valve obtain, stand
It carves and disconnects gas source stopping gas consumption.Due to the effect of check valve, at this time from check valve to sucker and to air admission valve position
The vacuum loop set is still a closed loop.In actual use, since the gentle tube loop part of sucker can have subtle leakage
Situations such as gas, so vacuum can be destroyed slowly.After detecting that vacuum degree drops to the energy saving signal value of feedback of setting, control
Device makes energy-saving valve dead electricity, gas source conducting that vacuum loop be made to restore high vacuum state again.Then energy-saving valve again it is electric,
So that gas source is disconnected, stops gas consumption.In the adsorption cycle that manipulator and automation equipment use, energy-saving valve can go out
Now repeatedly " electric-dead electricity-is obtained and obtains electric-dead electricity " action, to maintain vacuum state.It is described double automatically controlled when needing to discharge object
Supply electromagnetic valve coil switching, disconnect gas source, while air admission valve obtain it is electric, sucker pass through air admission valve the ends air inlet P
Mouth is connect with the ports A, gas source connection, vacuum breaking, and workpiece is rapidly separated sucker, realizes that workpiece opens.If in use
Power-off suddenly, since main supply valve uses a double automatically controlled supply solenoid valve, after power-off, double automatically controlled supply solenoid valves are not
It can act, when workpiece is sorption, gas source is connected, still lasting sorption state；Workpiece is open state, main gas
What source namely disconnected, the memory of vacuum state is realized with this.
Compared with prior art, the present invention following functions can be realized, has the following advantages：
1, power saving function：Circuit increases energy-saving valve and check valve, and the transformation to controller internal control, realizes
Maintenance to vacuum loop sealing state so that compressed air consumption falls sharply, and shortens the duration of noise.
2, vacuum breaking function：Circuit increases air admission valve, can solve microminiature product because of the originals such as electrostatic, stickiness
The problem of not falling is being taken off on sucker caused by.
3, vacuum state function is remembered after powering off：By a double automatically controlled supply solenoid valve, realizes and powering off suddenly
In the case of, it can maintain the working condition of last time supply solenoid valve, to realize the memory of vacuum state, solve vacuum after power-off
The problems such as state disappears, workpiece falls, breaks or injure operating personnel by a crashing object.
Description of the drawings
Fig. 1 is the vacuum loop schematic diagram of the present invention.
Specific implementation mode
As shown in Figure 1, the double automatically controlled supply solenoid valves 1 and air admission valve 4 of the present invention are connect with gas source 7, gas source 7
For compressed air gas source, double automatically controlled supply solenoid valves 1 are connect through energy-saving valve 3 with the ports air inlet P of vacuum generator 2, and vacuum is broken
Bad valve 4 is connect with the outlet V port of vacuum generator 2, the outlet V port of vacuum generator 2 and sucker 6 and negative pressure switch 5 it
Between be equipped with check valve, for preventing air from the port noise reduction exhaust port EXH or air inlet P of vacuum generator 2 adverse current to vacuum
Intracavitary.
Negative pressure switch 5 includes negative pressure switch sensor, negative pressure switch signal wire；Negative pressure switch sensor and vacuum generator
The input port of 2 ports outlet V connection, negative pressure switch signal wire and controller connects；It is double automatically controlled supply solenoid valves 1, energy saving
The output port of the coil and controller of valve 3 and air admission valve 4 connects.The negative pressure switch 5 of the present invention can ensure vacuum degree
The accuracy of numerical measuring.
Two vacuum values built in controller, first vacuum values are for being inhaled to the vacuum of external feedback sorption confirmation signal
Confirmation signal value；Second vacuum values is the energy saving signal value of feedback for controlling 3 start and stop of the energy-saving valve, and the vacuum is inhaled
The setting for confirmation signal value is more than energy saving signal value of feedback.The vacuum adsorption confirmation signal value of the present invention is -50.0kpa, section
Energy signal value of feedback is -70.0kpa.
If the present invention vacuum loop vacuum adsorption state when, it is double it is automatically controlled supply solenoid valves 1 a coils obtain it is electric, separately
One coil losing electricity, P3Mouth is connected to A mouthfuls, R1Mouth is obstructed, and gas source 7 flows to energy-saving valve 3 by double automatically controlled supply solenoid valves 1, by
There is no to obtain electric, P in energy-saving valve 31Mouth and A1Mouth connection, R3Mouth is obstructed, leads to the gas circuit connection of vacuum generator 2 at this time, rapid to produce
Raw vacuum, vacuum degree reach vacuum adsorption confirmation signal setting value（Such as -50.0kpa）Afterwards, controller feeds back sorption confirmation signal,
Vacuum degree, which continues to rise, reaches energy saving signal feedback setting value（Such as -70.0kpa）Afterwards, controller starts a timer internal,
Vacuum degree continues to rising at this time, for example vacuum values reach（-90.0kpa）, after timer reaches setting time,
Controller makes energy-saving valve 3 obtain electric, P1Obstructed, the A of mouth1Mouth and R3Mouth connection, gas source 7 disconnects, to save gas consumption.Work as control
Device detects that vacuum degree drops to energy saving signal feedback setting value（Such as -70.0kpa）Afterwards, controller makes 3 dead electricity of energy-saving valve, P1Mouthful
And A1Mouth connection, R3Mouth is obstructed, and gas source 7 is connected again, reaches high vacuum state.Then energy-saving valve 3 obtains electric, P1Mouth is obstructed,
A1Mouth and R3Mouth connection, disconnects gas source 7, repeatedly, to realize power saving function.Vacuum degree set by the controller reaches
Setting value is fed back to vacuum adsorption confirmation signal setting value or energy saving signal, it is to be ensured that absorption of workpieces is secured.Concrete numerical value can
To be set according to actual service condition, this is not limited by the present invention.
When needing to discharge workpiece, two coils of double automatically controlled supply solenoid valves 1 switch, at this time P3Mouth is connected to B mouthfuls, B
Mouthful be seal plug death situation state, A mouthfuls and R1Mouth connection, 7 gas circuit of gas source for leading to vacuum generator 2 is obstructed, while vacuum breaking
Valve 4 obtains electric, P2Mouth and A2Mouth connection, R4Mouth is obstructed.Gas source 7 flows to sucker 6, vacuum breaking, workpiece by air admission valve 4
It is rapidly separated sucker 6, workpiece opens, and realizes vacuum breaking function.
If power-off suddenly in use, since main supply valve uses a double automatically controlled supply solenoid valve 1, unexpected
Current working condition can be maintained in the case of power-off.Vacuum loop is：Workpiece is sorption state, and gas source 7 is connected, still holds
Continuous sorption state；Workpiece is open state, what gas source 7 namely disconnected, and the memory of vacuum state is realized with this.Among the above
Double automatically controlled supply solenoid valves 1, energy-saving valve 3 and air admission valve 4 include R1Mouth, R3Mouth, R4Mouthful, it is seal plug death situation state.
Claims (1)
1. a kind of vacuum loop, it is characterised in that：Double automatically controlled supply solenoid valves（1）And air admission valve（4）With gas source（7）Even
It connects, double automatically controlled supply solenoid valves（1）Through energy-saving valve（3）With vacuum generator（2）Air inlet port connection, air admission valve（4）
With vacuum generator（2）Air outlet connection, vacuum generator（2）Air outlet and sucker（6）And negative pressure switch（5）It
Between be equipped with check valve；
The negative pressure switch（5）Including negative pressure switch sensor, negative pressure switch signal wire；Negative pressure switch sensor occurs with vacuum
Device（2）Air outlet connection, the input port of negative pressure switch signal wire and controller connects；Double automatically controlled supply solenoid valves（1）、
Energy-saving valve（3）And air admission valve（4）Coil and controller output port connect；
Two vacuum values built in the controller, first vacuum values are for being inhaled to the vacuum of external feedback sorption confirmation signal
Confirmation signal value；Second vacuum values is for controlling the energy-saving valve（3）The energy saving signal value of feedback of start and stop, the vacuum
The setting of sorption confirmation signal value is more than energy saving signal value of feedback；The vacuum adsorption confirmation signal value is -50.0kpa, energy saving
Signal value of feedback is -70.0kpa.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510328849.6A CN105983975B (en) | 2015-06-15 | 2015-06-15 | A kind of vacuum loop |
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| CN201510328849.6A CN105983975B (en) | 2015-06-15 | 2015-06-15 | A kind of vacuum loop |
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| CN105983975A CN105983975A (en) | 2016-10-05 |
| CN105983975B true CN105983975B (en) | 2018-08-14 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108807137A (en) * | 2017-04-26 | 2018-11-13 | 北京半导体专用设备研究所（中国电子科技集团公司第四十五研究所） | Vacuum drainage device |
| CN107900919A (en) * | 2017-12-12 | 2018-04-13 | 广东利迅达机器人***股份有限公司 | The multistation clamping vacuum air-channel system of sink sand shaker |
| CN108194361A (en) * | 2017-12-30 | 2018-06-22 | 浙江尖峰药业有限公司 | Water ring vacuum pump breaks empty shutdown control circuit automatically |
| CN208638412U (en) * | 2018-08-20 | 2019-03-22 | 深圳市蓝禾技术有限公司 | Electrokinetic adsorption bracket |
| CN109040388A (en) * | 2018-08-20 | 2018-12-18 | 深圳市蓝禾技术有限公司 | Electrokinetic adsorption bracket |
| CN111459053B (en) * | 2019-01-22 | 2023-09-12 | 汉达精密电子(昆山)有限公司 | Positive and negative pressure fast switching device |
| CN112648534B (en) * | 2020-12-03 | 2022-07-19 | 青岛中科墨云智能有限公司 | Novel vacuum air pressure conversion device and wafer sorting machine |
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| JP2003062781A (en) * | 2001-08-27 | 2003-03-05 | Star Seiki Co Ltd | Mold product sucking device and mold product sucking method for handling device |
| US20050200069A1 (en) * | 2004-03-12 | 2005-09-15 | G 01.Com Srl | Apparatus including a sucker with autoselection function for handling material |
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| CN101671122A (en) * | 2009-08-18 | 2010-03-17 | 济南德佳玻璃机器有限公司 | Vacuum control system of hollow glass roller pressing machine |
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| CN103939409A (en) * | 2014-04-16 | 2014-07-23 | 江苏通用科技股份有限公司 | Forming machine right steel ring pre-support pneumatic driving device |
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| CN105983975A (en) | 2016-10-05 |
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