JPH03116414U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view showing the configuration of the first embodiment of the present invention, Fig. 2 is a diagram showing a system using the first embodiment, Fig. 3 is a current control circuit for the moving coil, and Fig. 4 is a diagram showing a system using the first embodiment. 5 is a diagram showing the relationship between moving coil generation force and nozzle back pressure, FIG. 5 is a diagram showing a system using the second embodiment, FIG. 6 is a longitudinal sectional view showing the configuration of the second embodiment, and FIG. 7 8 is a diagram showing a conventional example, and FIG. 8 is a longitudinal cross-sectional view of a conventional electro-pneumatic converter. 2... Three-way solenoid valve, 3... Load, 4... Pump, 5... Tank, 6... Glue, 14... Electric glue control valve, 15... Air source, 16... Permanent magnet, 17...
Moving coil, 18...Flatspa, 19...
Movable plate, 20...Zero adjustment spring, 21...Zero adjustment screw,
23... Nozzle, 24... Nozzle back pressure chamber, 25,
28...Diaphragm, 26...Press plate, 29...
... Valve drive plate, 30 ... Valve stem, 32 ... Main valve, 33
... Valve seat, 34 ... Valve spring, 35 ... Main valve chamber, 3
6... Main valve back pressure chamber, 37... Electro-pneumatic conversion section, 38...
...Valve body part.

Claims (1)

[Claims for Utility Model Registration] (1) A moving coil disposed within a permanent magnet that is integrated with a flapper and moves in the vertical direction by an input current, and a nozzle located at a position corresponding to the flapper to supply air at a predetermined pressure. a nozzle back pressure chamber that is supplied and has a valve pushing part surrounded by a diaphragm at the lower part and movable in the vertical direction; and an upper part that is pressed by the valve pushing part, surrounded by a diaphragm, and has a valve stem attached to the lower surface; A main valve back pressure chamber has a bottom part and a discharge port, the valve stem having an opening through which the outer peripheral part forms a valve seat; 1. A viscous fluid control device comprising a built-in main valve pressed by a main valve and a main valve chamber having a supply port. (2) The viscous fluid control device according to claim 1, characterized in that a load is connected to the discharge port, and a three-way valve is provided between the load and the discharge port to provide a pressure reducing function for the load. (3) A pressure setting device that includes a moving coil that is disposed within a permanent magnet and is integrated with the flapper and moves vertically in response to an input current, and a nozzle located at a position corresponding to the flapper that is supplied with air at a predetermined pressure and has a conduction port. an electro-pneumatic converter having a chamber; a pressure chamber connected to the conduction port and having a valve push part surrounded by a diaphragm at the bottom and movable in a vertical direction; and a pressure chamber pressed by the valve push part and surrounded by a diaphragm A main valve back pressure chamber having an upper part with a valve stem attached to the lower surface, a bottom part having an opening through which the valve stem passes through and an outer peripheral part forming a valve seat, and a discharge port; 1. A viscous fluid control device comprising: a valve body part which is fixed to the tip of a rod and has a built-in main valve pressed by a spring against the valve seat, and a main valve chamber having a supply port.