Process and apparatus for open-end spinning

US6092356A · kind A · utility

Assignees

• Fritz Stahlecker · DE
• Hans Stahlecker · DE

Inventor

• Fritz Stahlecker · Geislingen an der Steige, DE

Key dates

• Filing date: Oct 16, 1998
• Grant date: Jul 25, 2000
• Expiry date: Oct 16, 2018

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D01H4/16
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A process for open-end spinning provides for at least one sliver being opened into single fibers. A wide fiber veil is formed from parallel single fibers extending in the direction of motion, which fiber veil is fed to a transporting surface by means of a moving collecting surface. The single fibers are transferred from the collecting surface to the transporting surface at a transfer point, whereby the direction of motion of the fiber veil is abruptly changed, however the current relative position of the single fibers remaining essentially constant. This motion direction change occurs at the transfer point, with the respective front part of the fiber veil being transferred to the transporting surface as a fiber group in a predetermined sequence, and the transporting surface moves transversely to the direction of motion of the collecting surface. The single fibers are then transported by means of the transporting surface to a spinning line, which is situated on the transporting surface and extends transversely to the direction of motion thereof and along which the forming yarn is withdrawn. Due to the sequenced transfer point and the selected directions of motion of the collecting s…