Volkmann Gmbh

Oerlikon Textile Gmbh & Co Kg

Ralf Lohmann

Georg Heinen

Jörg Zischewski

An actuating valve has two relay valves connected to a compressed air source and a pneumatic cylinder with two pressure chambers. When one relay valve is actuated, one pressure chamber is pressure-loaded and the other is relieved. Two 3/2 port directional control valves are arranged upstream of the pneumatic cylinder. Two check valves are positioned in branch lines connecting the relay valves and the directional control valves. A control line connects the branch line to the other directional control valve, respectively. The directional control valves are moveable between a first position allowing compressed air to pass and a pressure relief position. When the relay valves are inactive, the directional control valves are in the first position and the relay valves are in a venting position for the branch lines. When one relay valve is actuated, it assumes a position allowing passage of air to the branch line connected to it.

Actuating valve for bidirectional pneumatic cylinder and use of such actuating valve for bobbin creels controlled by pneumatic cylinders

A winding frame is provided which is swingably mountable on a machine frame and operable to support a rotatably driveable winding core for the winding of a filament thereon. The winding frame includes a damping apparatus for opposing unscheduled swing movements of the winding frame during regular winding of a filament onto the winding core.

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Schwalmtal, Germany

Ralf Lohmann