Textile machine with variable tension draft

US9873960B2 · kind B2 · utility

Assignee

• Rieter Ingolstadt GmbH · DE

Inventors

• Michael Ueding · Ingolstadt, DE
• Jürgen Müller · Bayreuth, DE

Key dates

• Filing date: Dec 2, 2014
• Grant date: Jan 23, 2018
• Expiry date: May 23, 2036

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D01H5/32
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A textile machine, especially a spinning preparation machine, with a drafting system for drafting a fiber strand fed to the textile machine, includes a compressor arranged downstream from the drafting system in a transportation direction of the fiber strand for compressing the fiber strand. A draw-off device is arranged downstream from the compressor for drawing off the drafted fiber strand. At least one entrance cylinder is provided that can be powered by a drive and one exit cylinder that can be powered by a drive. The draw-off device comprises at least one draw-off disk that can be powered by a drive. Means are provided to the textile machine to change the ratio of the circumferential speeds of the exit cylinder and the draw-off disk (=tension draft (A)) while the drafting system is operated, at least during a part of its starting phase and/or its stopping phase.