US 5,305,983 A · Spinning device

Abstract

The instant invention relates to a spinning device, in particular a spinning or winding device. The device comprises a pressure circuit with a valve installed therein to control the pressure. The valve can be actuated pneumatically. A device for rapid aeration of the valve is provided with the valve. The valve is actuated by compressed air acting upon a side of a cup seal away from a pressure chamber, causing the cup seal to close off an aeration opening. The compressed air streams past the cup seal and fills the pressure chamber, whereby a passage cross-section of the valve is reduced or closed off by means of a closing element acting upon the pressure in the pressure chamber in opposition to a restoring force. As the pressure on the side of the cup seal away from the pressure chamber is reduced, the pressure on the side of the cup seal towards the pressure chamber is increased. As a result the cup seal moves in direction of lower pressure and the aeration opening is again opened. The closing element returns in this manner rapidly into its original position under the effect of its restoring force.

Claims11

Dependent claims

A pressure circuit for controlling the pressure at the spinning surface of textile machine spinning device, comprising:

a negative pressure source, said negative pressure source in pneumatic communication with the spinning surface;
a pneumatically actuated diaphragm valve operatively disposed between said negative pressure source and the spinning surface, said diaphragm valve having a normally open position so that during yarn formation a negative pressure is established at the spinning surface;
pneumatic actuation means in physical communication with said valve and with a source of compressed air for actuating said valve by directing compressed air to said diaphragm valve thereby closing said diaphragm valve;
a rapid deaeration device in physical communication with said diaphragm valve, said deaeration device defining a vent path from said diaphragm valve for venting compressed air directly from said diaphragm valve thereby allowing said diaphragm valve to rapidly open;
and
a remote control means for actuating said pneumatic actuation means upon the occurrence of a predetermined condition wherein the negative pressure at the spinning surface must be interrupted.

3 more elements

Dependencies are inferred from the claim text.

Spinning device

Life of this patent

Spinning device

Life of this patent

Abstract

Claims11