JPS6277379U

JPS6277379U -

Info

Publication number: JPS6277379U
Application number: JP16810285U
Authority: JP
Priority date: 1985-10-31
Filing date: 1985-10-31
Publication date: 1987-05-18
Anticipated expiration: 2000-10-31
Also published as: JPH0529433Y2

Description

[Brief explanation of the drawing]

第１図は本考案の実施例の縦断正面図、第２図
は同上の作動説明図、第３図は従来の真空圧制御
弁の作動説明図、第４図は先行技術の作動説明図
である。３……吸着パツド、４……真空源、５……圧力
空気源、２０……主弁、２２……供給弁部、２３
……真空圧弁部、２４……駆動部、５０……パイ
ロツト弁、５４，５６……圧力室、５５……機械
的デテント機構部、６０ａ，６０ｂ……切換弁、
Ｆ……供給ポート、Ａ……出力ポート、Ｒ……真
空圧ポート、Ｐｃ……圧力ポート、Ａｃ……パイ
ロツトポート、Ｒｃ……排気ポート。 Fig. 1 is a longitudinal sectional front view of an embodiment of the present invention, Fig. 2 is an explanatory diagram of the same operation as above, Fig. 3 is an explanatory diagram of the operation of a conventional vacuum pressure control valve, and Fig. 4 is an explanatory diagram of the operation of the prior art. be. 3... Adsorption pad, 4... Vacuum source, 5... Pressure air source, 20... Main valve, 22... Supply valve section, 23
... Vacuum pressure valve section, 24 ... Drive section, 50 ... Pilot valve, 54, 56 ... Pressure chamber, 55 ... Mechanical detent mechanism section, 60a, 60b ... Switching valve,
F...Supply port, A...Output port, R...Vacuum pressure port, Pc...Pressure port, Ac...Pilot port, Rc...Exhaust port.

Claims

[Claims for Utility Model Registration] A vacuum pressure control valve comprising a main valve and a pilot valve for driving the main valve, the main valve having an output port communicating with a suction pad at a first switching position. A valve part that communicates with a vacuum pressure port that communicates with a vacuum source and that switches the output port to an engagement port that communicates with a pressure air source in a second switching position, and a drive unit that drives the switching, The pilot valve is provided with a pair of switching valves for supplying and discharging pressurized fluid for switching and driving the valve member, and the valve member is connected to the first switching valve by the operation of the first switching valve. when in position,
Providing a flow path for supplying pilot fluid pressure for switching the valve part to the first switching position to the driving part of the main valve, and providing a mechanical detent mechanism for temporarily holding the valve member in the switching position, When the valve member is in the second switching position due to the operation of the second switching valve, pilot fluid pressure is supplied from the second switching valve to the drive unit of the main valve to switch the valve unit to the second switching position. A vacuum pressure control valve characterized by being provided with a flow path.