JPS6053378U

JPS6053378U - Paint supply needle valve

Info

Publication number: JPS6053378U
Application number: JP14387783U
Authority: JP
Inventors: 岩野　幸一
Original assignee: ランズバ−グ・ゲマ株式会社
Priority date: 1983-09-16
Filing date: 1983-09-16
Publication date: 1985-04-15
Also published as: JPH0336779Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図および第２図は本考案の第１の実施例を、示すも
ので、第１図はニードル弁の縦断面図、第２図はニード
ル弁の弁開度−と流路面積との関係を示す線図、第３図
は本考案の第２の実施例を示す縦断面図である。１・・・・・・弁組立体、２，４４・・・・・・弁部、
３，４７・・・・・・弁駆動部、４，４８・・・・・・
切換部、５，３６・・・・・・塗料通路、８，４５・・
・・・・弁座、９，４６・・・・・・ニードル弁体、１
０，４９・・・・・・第１のシリンダ室、１１．５０・
・・・・・第１のピストン、１２．５３・・・・・・ば
ね、１５．５６・・・・・・第２のシリンダ、１６．５
７・・・・・・第２のピストン、１７．５８・・・・・
・ストッパ、２０，５９・・・・・・調整杆、Ａ、Ａ’
　、Ｃ，Ｃ’・・・・・・ばね室、Ｂ、　Ｂ’　、　Ｄ
、　Ｄ’・・・・・・圧力室。1 and 2 show a first embodiment of the present invention, in which FIG. 1 is a longitudinal cross-sectional view of a needle valve, and FIG. A diagram showing the relationship, and FIG. 3 is a longitudinal sectional view showing a second embodiment of the present invention. 1... Valve assembly, 2, 44... Valve section,
3,47... Valve drive section, 4,48...
Switching section, 5, 36... Paint passage, 8, 45...
... Valve seat, 9, 46 ... Needle valve body, 1
0,49...First cylinder chamber, 11.50.
...First piston, 12.53 ... Spring, 15.56 ... Second cylinder, 16.5
7...Second piston, 17.58...
・Stopper, 20, 59...adjustment rod, A, A'
, C, C'... Spring chamber, B, B', D
, D'......pressure chamber.

Claims

[Scope of utility model registration request]

A valve part having a valve seat formed in a paint passage, a needle valve element for opening and closing the paint passage being provided in a manner that can be moved to and from the valve seat, a valve drive part for driving the needle valve element to open and close, and the needle valve element for opening and closing the paint passage. a switching part for switching the valve body between a small passage valve opening position and a large passage valve opening position, and the valve driving part is slidable into a first cylinder chamber and the first sealing chamber. a first piston that is movably provided and connected to the needle valve body; a spring that biases the first piston in a direction in which the needle valve body closes; and a spring that biases the first piston in a direction in which the needle valve body closes; a pressure chamber that pushes the first piston in a direction in which the needle valve body opens against the urging force of the needle valve body; A second piston is slidably provided in the chamber, one end is connected to the second piston, and the other end is provided to protrude into the first cylinder to control the stroke amount of the first piston. A regulating stopper and a switching operation of the needle valve body between a large flow passage opening position and a small passage opening position by displacing the second piston by supplying and discharging working fluid. The valve driving part and the switching part are screwed into and out from each other, and the threaded part forms a small flow path valve opening position adjustment mechanism of the needle valve body. , an adjustment rod that can be screwed in and out of the second cylinder chamber to move into and out of contact with the second piston is provided in the second cylinder chamber, thereby forming a large flow path opening position adjustment mechanism for the needle valve body. needle valve.