Patent · US Expired

Process and arrangement for restarting a previously interrupted spinning process

US7464529B2 · kind B2 · utility

7Cited by

4References

21Claims

0Family size

Assignee

Maschinenfabrik Rieter AG · CH

Inventors

Gerd Stahlecker · Eislingen/Fils, DE
Gernot Schaeffler · Lorch, DE
Peter Schweier · Forheim, DE

Key dates

Filing date	Jul 30, 2004
Grant date	Dec 16, 2008
Priority date	—
Expiry date	May 14, 2025

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01H15/002
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A process and an arrangement for re-starting a previously interrupted spinning process in a spinning arrangement is provided. The arrangement includes a drafting unit which can be shut down and also an airjet unit including a vacuum chamber. For the purpose of removing an initially inhomogeneous fiber stream, a staple fiber strand, delivered by the re-operating drafting unit, is temporarily suctioned as waste via a deflecting device after it has left the drafting unit. Only then, when a homogeneous fiber stream has formed, is the staple fiber strand joined with a thread which is transported through the airjet unit. The inhomogeneous fiber stream is removed with the aid of the low pressure in the vacuum chamber.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.