Maschinenfabrik Rieter Ag

Rieter Ingolstadt Gmbh

Andreas Frank

Gerd Stahlecker

Romeo Pohn

Markus Kuebler

Mario Maleck

Thomas Gruber

Robert Hagl

Christian Kettner

Frank Baier

Robin Wein

Bernd Loos

Siegfried Krohmer

Markus Kübler

Frank Riedel

Helmut Wollinger

Henning Rave

Stephan Weidner-Bohnenberger

Alexander Stampfer

A method for producing a rotor cup for an open-end spinning rotor includes forming separating structures on a front-side rim of the rotor cup for breaking up and preparing a yarn end for piecing. The separating structures are formed by a non-mechanical manufacturing method without contact between the front-side rim and a mechanical forming tool. A rotor cup formed in accordance with the method is also provided.

Method for producing a rotor cup for an open-end spinning rotor along with a rotor cup for an open-end spinning rotor

A thread guide unit is used for drawing off a thread out of a rotor of a spinning unit of an open-end spinning machine. The thread guide unit includes a draw-off tube, and a compressed air nozzle configured with the draw-off tube. A thread outlet element extends into the draw-off tube. The compressed air nozzle includes a mouth formed as a gap between an inner diameter surface of the draw-off tube and the thread outlet element. A method for operating a spinning unit of an open-end spinning machine having the thread guide unit is also provided.

Thread-guiding unit, open-end spinning machine and method for operating a spinning station

Growing community of inventors

Laichingen, Germany

Andreas Frank