JPH0231997U

JPH0231997U -

Info

Publication number: JPH0231997U
Application number: JP11074488U
Authority: JP
Priority date: 1988-08-24
Filing date: 1988-08-24
Publication date: 1990-02-28

Description

[Brief explanation of drawings]

第１図は本考案の高粘度材圧出装置の一実施例
を示す断面図、第２図はその往復動切換時の断面
図、第３図は装置停止時の３方弁の断面図である
。４４……外筒、５０……凹部、５１……駆動ピ
ストン、５６……内穴、５８……切換ピストン、
６３……排気弁、６４……給気室対応面、６５…
…給気室、６６，６７，６８……排気通路を構成
する排気穴、排気凹溝および排気孔、６９……排
気室、７４……シリンダ、７７……プランジヤ、
７９……スプリング、８１……高粘度材供給口、
８５……逆止弁。 Fig. 1 is a sectional view showing an embodiment of the high viscosity material extrusion device of the present invention, Fig. 2 is a sectional view when the reciprocating motion is switched, and Fig. 3 is a sectional view of the three-way valve when the device is stopped. be. 44...Outer cylinder, 50...Recess, 51...Drive piston, 56...Inner hole, 58...Switching piston,
63... Exhaust valve, 64... Air supply chamber compatible surface, 65...
... Air supply chamber, 66, 67, 68 ... Exhaust hole, exhaust groove and exhaust hole forming the exhaust passage, 69 ... Exhaust chamber, 74 ... Cylinder, 77 ... Plunger,
79...Spring, 81...High viscosity material supply port,
85...Check valve.

Claims

[Scope of utility model registration request]

A plunger fitted in a cylinder is reciprocated, and high viscosity material supplied into the cylinder from a high viscosity material supply port provided in the cylinder is discharged by the plunger through a check valve. In the output device, an outer tube is integrally provided in the cylinder, and a drive piston integrally provided with the plunger is slidably fitted inside the outer tube, and the drive piston releases compressed air. An air supply chamber that receives air supply and an exhaust chamber that communicates with the outside are defined inside the outer cylinder, and are located on the inner surface of the outer cylinder at a position corresponding to the reciprocating stroke from the air supply side of the outer cylinder. A recess is provided, and an inner hole communicating with the air supply chamber through the recess is provided axially inside the drive piston, and a switching piston is slidably fitted into the inner hole, and the switching piston is fitted with the switching piston. An exhaust valve that can be freely moved toward and away from the surface of the drive piston corresponding to the air supply chamber is integrally provided, and an exhaust passage is provided inside the drive piston from the inside of the exhaust valve to the exhaust chamber. A high viscosity material extrusion device characterized in that a spring is provided to press the drive piston toward the air supply side.