CN105983975A - Vacuum loop - Google Patents
Vacuum loop Download PDFInfo
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- CN105983975A CN105983975A CN201510328849.6A CN201510328849A CN105983975A CN 105983975 A CN105983975 A CN 105983975A CN 201510328849 A CN201510328849 A CN 201510328849A CN 105983975 A CN105983975 A CN 105983975A
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Abstract
The invention relates to a vacuum loop for automation equipment such as manipulators. A double-electronic control supply solenoid valve and a vacuum breaker valve are connected with a main gas source, the double-electronic control supply solenoid valve is connected with a gas inlet port of a vacuum generator by an energy saving valve, the vacuum breaker valve is connected with a gas outlet port of the vacuum generator, a one-way valve is arranged among the V port of the vacuum generator, a sucker and a negative pressure switch; a negative pressure switch sensor is connected with the gas outlet port of the vacuum generator, a negative pressure switch signal line is connected with the input port of a controller; the coils of the double-electronic control supply solenoid valve, the energy saving valve and the vacuum breaker valve are connected with the output port of the controller; two vacuum values are set in the controller, and the vacuum sorption confirmation signal value is set to be higher than the energy saving signal feedback value. The sealing state of the vacuum loop can be maintained, so that the consumption of the compressed air is sharply reduced, the duration time of noise is shortened, the problem that tiny products cannot be separated from the sucker is solved, and the vacuum state memory function under the condition of sudden power loss can be achieved.
Description
Technical field
The present invention relates to vacuum suction technical field, specifically a kind of for manipulator, automation equipment integrate energy-conservation, vacuum breaking, vacuum loop that power-off vacuum is remembered.
Background technology
At present, major part taking mechanical hand and automation equipment, absorption, carry an object mostly use vacuum generator, utilizes compressed air positive-pressure rotary to change negative pressure to produce vacuum into, can be with jig plate with the use of taking out trickle product.The advantages such as vacuum generator has that volume is little, light weight and fast response time, use widely.Have a disadvantage in that:
Need persistently to consume substantial amounts of compressed air when the 1st, producing vacuum, during exhaust, persistently produce again noise；
2nd, because the reason such as electrostatic, stickiness, the absorption of microminiature product is made to take off not fall on sucker；
3rd, after unexpected power-off, it is impossible to judge that vacuum is to need to continue to need for closing.
In prior art frequently with vacuum loop be mainly made up of single automatically controlled supply magnetic valve, vacuum generator, negative pressure switch and sucker.Its operation principle is: single automatically controlled supply magnetic valve obtains electric, and vacuum generator produces vacuum suction workpiece, and single automatically controlled supply magnetic valve dead electricity, vacuum state disappears, and workpiece is released.But vacuum loop can not maintain air-tight state after single automatically controlled supply magnetic valve dead electricity, and vacuum is quickly destroyed.This need single automatically controlled supply magnetic valve persistently the electric vacuum state that is just maintained, persistently consume substantial amounts of compressed gas and electric energy while generation vacuum.And in the case of unexpected power-off, owing to vacuum state can not maintain, cause workpiece to drop, break or injure the accidents such as operating personnel by a crashing object.
Content of the invention
For overcoming the deficiencies in the prior art, the goal of the invention of the present invention is to provide a kind of vacuum loop, to realize energy-conservation, vacuum breaking, the purpose of power-off vacuum memory.
For achieving the above object, the double automatically controlled supply magnetic valve of the present invention and air admission valve are connected with gas source, double automatically controlled supply magnetic valves are connected with the air inlet port of vacuum generator through energy-saving valve, air admission valve is connected with the air outlet of vacuum generator, is provided with check valve between the air outlet of vacuum generator and sucker and negative pressure switch.
Described negative pressure switch includes negative pressure switch sensor, negative pressure switch holding wire；Negative pressure switch sensor is connected with the air outlet of vacuum generator, and negative pressure switch holding wire is connected with the input port of controller；Double automatically controlled supply magnetic valves, energy-saving valve and the coil of air admission valve are connected with the output port of controller.
Built-in two vacuum values of described controller, first vacuum values is for for the vacuum adsorption confirmation signal value of external feedback sorption confirmation signal；Second vacuum values is for for controlling the energy-conservation signal value of feedback of described energy-saving valve start and stop, and the setting of described vacuum adsorption confirmation signal value is more than energy-conservation signal value of feedback.
The operation principle of the present invention: during vacuum adsorption state, a coil of double automatically controlled supply magnetic valves obtains electric, and another coil losing electricity, gas source is by P3End flows to A end, due to energy-saving valve not electric, lead to the gas circuit connection of vacuum generator, producing rapidly vacuum, after negative pressure switch detects that vacuum reaches described energy-conservation signal value of feedback, controller starts a timer internal, now vacuum continues to rising, after timer reaches the setting time, it is electric that controller makes energy-saving valve obtain, and turns off gas source and stops gas consumption.It due to the effect of check valve, is still now a closed loop from check valve to sucker and to the vacuum loop of vacuum breaking valve position.In actual use, owing to sucker gentle tube loop part can exist the situations such as trickle gas leakage, so vacuum can slowly be destroyed.After the energy-conservation signal value of feedback that vacuum drops to setting being detected, controller makes energy-saving valve dead electricity, and gas source turns on, and makes vacuum loop again recover high vacuum state.Then energy-saving valve again electric, make gas source disconnect, stop gas consumption.In the adsorption cycle that manipulator and automation equipment use, energy-saving valve there will be repeatedly " electric-dead electricity-electric-dead electricity " action, to maintain vacuum state.When needs release object, described double automatically controlled supply electromagnetic valve coil switchings, disconnect gas source, air admission valve obtains electric simultaneously, and sucker is connected with A port through the air inlet P port of air admission valve, and gas source connects, vacuum breaking, workpiece is rapidly separated sucker, it is achieved workpiece is open.If in use unexpected power-off, owing to main supply valve uses a double automatically controlled supply magnetic valve, after power-off double automatically controlled supply magnetic valves will not action, when workpiece is sorption, gas source turns on, still persistently sorption state；Workpiece is open state, and gas source namely disconnects, and realizes the memory of vacuum state with this.
The present invention compared with prior art, can realize following functions, have the advantage that
1st, power saving function: loop adds energy-saving valve and check valve, and the transformation to controller internal control, it is achieved that the maintenance to vacuum loop sealing state so that compressed air consumption falls sharply, and shortens the duration of noise.
2nd, vacuum breaking function: loop adds air admission valve, it is possible to resolve microminiature product is because the reason such as electrostatic, stickiness causes the de-problem do not fallen on sucker.
3rd, vacuum state function is remembered after power-off: by a double automatically controlled supply magnetic valve, achieve in the case of unexpected power-off, the duty supplying magnetic valve last time can be maintained, realizing the memory of vacuum state, solve that power-off final vacuum state disappears, workpiece drops, breaks or injure the problems such as operating personnel by a crashing object.
Brief description
Fig. 1 is the vacuum loop schematic diagram of the present invention.
Detailed description of the invention
As shown in Figure 1, the double automatically controlled supply magnetic valve 1 of the present invention and air admission valve 4 are connected with gas source 7, gas source 7 is compressed air gas source, double automatically controlled supply magnetic valves 1 are connected with the air inlet P port of vacuum generator 2 through energy-saving valve 3, air admission valve 4 is connected with the V port of giving vent to anger of vacuum generator 2, giving vent to anger of vacuum generator 2 is provided with check valve between V port and sucker 6 and negative pressure switch 5, for preventing the noise reduction exhaust port EXH from vacuum generator 2 for the air or air inlet P port adverse current in vacuum chamber.
Negative pressure switch 5 includes negative pressure switch sensor, negative pressure switch holding wire；Negative pressure switch sensor is connected with the V port of giving vent to anger of vacuum generator 2, and negative pressure switch holding wire is connected with the input port of controller；Double automatically controlled supply magnetic valve the 1st, coils of energy-saving valve 3 and air admission valve 4 are connected with the output port of controller.The negative pressure switch 5 of the present invention can ensure that the degree of accuracy that vacuum values is measured.
Built-in two vacuum values of controller, first vacuum values is for for the vacuum adsorption confirmation signal value of external feedback sorption confirmation signal；Second vacuum values is for for controlling the energy-conservation signal value of feedback of described energy-saving valve 3 start and stop, and the setting of described vacuum adsorption confirmation signal value is more than energy-conservation signal value of feedback.The vacuum adsorption confirmation signal value of the present invention is-50.0kpa, and energy-conservation signal value of feedback is-70.0kpa.
If during the vacuum loop vacuum adsorption state of the present invention, coils of double automatically controlled supply magnetic valves 1 obtain electric, another coil losing electricity, P3Mouth connects with A mouth, R1Mouthful obstructed, gas source 7 flows to energy-saving valve 3 through double automatically controlled supply magnetic valves 1, due to energy-saving valve 3 not electric, P1Mouth and A1Mouth connection, R3Mouth is obstructed, now lead to the gas circuit connection of vacuum generator 2, produce rapidly vacuum, after vacuum reaches vacuum adsorption confirmation signal setting value (such as-50.0kpa), controller feeds back sorption confirmation signal, after vacuum continuation rising reaches energy-conservation signal feedback setting value (such as-70.0kpa), controller starts a timer internal, now vacuum continues to rising, such as vacuum values has reached (-90.0kpa), after timer reaches the setting time, it is electric that controller makes energy-saving valve 3 obtain, P1Mouth is obstructed, A1Mouth and R3Mouth connection, gas source 7 disconnects, to save gas consumption.After controller detects that vacuum drops to energy-conservation signal feedback setting value (such as-70.0kpa), controller makes energy-saving valve 3 dead electricity, P1Mouth and A1Mouth connection, R3Mouth is obstructed, and gas source 7 turns on again, reaches high vacuum state.Then energy-saving valve 3 obtains electric, P1Mouth is obstructed, A1Mouth and R3Mouth connection, disconnects gas source 7, so repeatedly, to realize power saving function.Vacuum set by described controller reaches vacuum adsorption confirmation signal setting value or energy-conservation signal feedback setting value, it is to be ensured that absorption of workpieces is firm.Concrete numerical value can be set according to actual service condition, and this is not construed as limiting by the present invention.
When needs release workpiece, two coil switchings of double automatically controlled supply magnetic valves 1, now P3Mouth connects with B mouth, and B mouth is seal plug death situation state, A mouth and R1Mouth connection, gas source 7 gas circuit leading to vacuum generator 2 is obstructed, and air admission valve 4 obtains electric simultaneously, P2Mouth and A2Mouth connection, R4Mouth is obstructed.Gas source 7 flows to sucker 6, vacuum breaking through air admission valve 4, and workpiece is rapidly separated sucker 6, and workpiece is open, it is achieved vacuum breaking function.
If in use unexpected power-off, owing to main supply valve uses a double automatically controlled supply magnetic valve 1, current duty can be maintained in the case of unexpected power-off.Vacuum loop is: workpiece is sorption state, and gas source 7 turns on, still persistently sorption state；Workpiece is open state, and gas source 7 namely disconnects, and realizes the memory of vacuum state with this.In above-mentioned, double automatically controlled supply magnetic valve the 1st, energy-saving valves 3 and air admission valve 4 comprise R1Mouth, R3Mouth, R4Mouthful, it is seal plug death situation state.
Claims (3)
1. a vacuum loop, it is characterized in that: double automatically controlled supplies magnetic valve (1) and air admission valve (4) are connected with gas source (7), double automatically controlled supplies magnetic valve (1) are connected through the air inlet port of energy-saving valve (3) and vacuum generator (2), air admission valve (4) is connected with the air outlet of vacuum generator (2), is provided with check valve between the air outlet of vacuum generator (2) and sucker (6) and negative pressure switch (5).
2. a kind of vacuum loop according to claim 1, it is characterised in that: described negative pressure switch (5) includes negative pressure switch sensor, negative pressure switch holding wire；Negative pressure switch sensor is connected with the air outlet of vacuum generator (2), and negative pressure switch holding wire is connected with the input port of controller；The coil of double automatically controlled supplies magnetic valve (1), energy-saving valve (3) and air admission valve (4) is connected with the output port of controller.
3. a kind of vacuum loop according to claim 2, it is characterised in that: built-in two vacuum values of described controller, first vacuum values is for for the vacuum adsorption confirmation signal value of external feedback sorption confirmation signal；Second vacuum values is for for controlling the energy-conservation signal value of feedback of described energy-saving valve (3) start and stop, and the setting of described vacuum adsorption confirmation signal value is more than energy-conservation signal value of feedback.
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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 true CN105983975A (en) | 2016-10-05 |
| CN105983975B CN105983975B (en) | 2018-08-14 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107900919A (en) * | 2017-12-12 | 2018-04-13 | 广东利迅达机器人系统股份有限公司 | 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 |
| 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 |
| CN109040388A (en) * | 2018-08-20 | 2018-12-18 | 深圳市蓝禾技术有限公司 | Electrokinetic adsorption bracket |
| WO2020037854A1 (en) * | 2018-08-20 | 2020-02-27 | 深圳市蓝禾技术有限公司 | Electric adsorption holder |
| CN111459053A (en) * | 2019-01-22 | 2020-07-28 | 汉达精密电子(昆山)有限公司 | Positive and negative pressure fast switching device |
| CN112648534A (en) * | 2020-12-03 | 2021-04-13 | 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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| CN104625406A (en) * | 2014-12-15 | 2015-05-20 | 湖北三江航天红阳机电有限公司 | Adsorption clamping equipment for framework covering laser welding and method achieved through adsorption clamping equipment |
| CN204673640U (en) * | 2015-06-15 | 2015-09-30 | 中日龙(襄阳)机电技术开发有限公司 | A kind of vacuum loop |
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| Publication number | Priority date | Publication date | Assignee | Title |
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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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| 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 |
| CN104625406A (en) * | 2014-12-15 | 2015-05-20 | 湖北三江航天红阳机电有限公司 | Adsorption clamping equipment for framework covering laser welding and method achieved through adsorption clamping equipment |
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Cited By (8)
| 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 | 广东利迅达机器人系统股份有限公司 | 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 |
| CN109040388A (en) * | 2018-08-20 | 2018-12-18 | 深圳市蓝禾技术有限公司 | Electrokinetic adsorption bracket |
| WO2020037854A1 (en) * | 2018-08-20 | 2020-02-27 | 深圳市蓝禾技术有限公司 | Electric adsorption holder |
| CN111459053A (en) * | 2019-01-22 | 2020-07-28 | 汉达精密电子(昆山)有限公司 | Positive and negative pressure fast switching device |
| CN112648534A (en) * | 2020-12-03 | 2021-04-13 | 青岛中科墨云智能有限公司 | Novel vacuum air pressure conversion device and wafer sorting machine |
| 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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| CN105983975B (en) | 2018-08-14 |
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