JPH0361962U

JPH0361962U -

Info

Publication number: JPH0361962U
Application number: JP12386689U
Authority: JP
Priority date: 1989-10-23
Filing date: 1989-10-23
Publication date: 1991-06-18
Anticipated expiration: 2004-10-23
Also published as: JPH0753740Y2

Description

[Brief explanation of drawings]

第１図は本考案の実施例の断面図である。主要符号の説明、１……三方切換え弁、２……
ハウジング、３……中空通路、４……供給路、５
……吐出路、６……帰還路、７……供給口、８…
…吐出口、９……帰還口、１０……第１弁座、１
１……第１オリフイス、１２……第１弁体、１３
……第１操作ロツド、１４……第２弁座、１５…
…第２オリフイス、１６……第２弁体、１７……
第２操作ロツド、３１……弁制御手段、３２……
第１エアシリンダ（第１アクチユエータ）、３３
……第２エアシリンダ（第２アクチユエータ）、
４２……第１調節ボルト（第１弁体調節機構）、
４７……第２調節ボルト（第２弁体調節機構）、
５０……空気圧制御装置（アクチユエータ制御機
構）。 FIG. 1 is a sectional view of an embodiment of the present invention. Explanation of main symbols, 1... Three-way switching valve, 2...
Housing, 3... Hollow passage, 4... Supply path, 5
...Discharge path, 6... Return path, 7... Supply port, 8...
...Discharge port, 9...Return port, 10...First valve seat, 1
1...First orifice, 12...First valve body, 13
...First operating rod, 14...Second valve seat, 15...
...Second orifice, 16...Second valve body, 17...
Second operating rod, 31... Valve control means, 32...
First air cylinder (first actuator), 33
...Second air cylinder (second actuator),
42...first adjustment bolt (first valve body adjustment mechanism),
47...Second adjustment bolt (second valve body adjustment mechanism),
50...Pneumatic control device (actuator control mechanism).

Claims

[Scope of Claim for Utility Model Registration] In a fluid control device equipped with a three-way switching valve and a valve control means, the three-way switching valve includes a housing, a supply path bored inside the housing, and a supply path through which fluid is introduced from a supply port. a hollow passage consisting of a discharge passage that guides the fluid in the supply passage to the discharge port and a return passage that guides the fluid in the supply passage to the return port; A first orifice that communicates with the first valve seat, a second orifice that communicates with the second valve seat and the second valve seat that are sequentially arranged in the return path along the counterflow direction, and a second orifice that communicates with the second valve seat that A first valve body is disposed facing the first valve seat and opens or closes the discharge passage, and a needle-shaped valve body is disposed downstream of the second orifice facing the second valve seat and throttles or closes the return passage. a second valve body; a first operating rod that is connected to the first valve body and operates the first valve body from outside the housing; and a second operating rod that is connected to the second valve body and operates the second valve body from outside the housing. The valve control means includes a first valve body adjustment mechanism that adjusts the amount of movement of the first valve body, a second valve body adjustment mechanism that adjusts the amount of movement of the second valve body, and a first operation rod. Drive the rod,
A first actuator that moves the first valve body, a second actuator that drives the second operating rod and moves the second valve body, and a first actuator and a second actuator that simultaneously open the discharge path during coating. 1. A fluid control device for fluid coating, comprising an actuator control mechanism that operates synchronously to close a return path and, when not coating, to close a discharge path and throttle the return path at the same time.