Patent · US Expired

Method and apparatus for automatically exchanging roving bobbins

US4771597A · kind A · utility

4Cited by

3References

10Claims

0Family size

Assignee

Zinser Textilmaschinen GmbH · DE

Inventors

Wolfgang Igel · Großenhain, DE
Werner Meissner · Uhingen, DE
Herbert Koenig · Holden, US
Ulrich Hungerbuehler · Großenhain, DE

Key dates

Filing date	Oct 20, 1987
Grant date	Sep 20, 1988
Priority date	—
Expiry date	Oct 20, 2007

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01H9/005
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A method and apparatus for automatically actuating roving bobbin exchange operations in a textile yarn spinning apparatus. The spinning stations are divided into equal groups and a roving bobbin exchange operation is actuated at each group by a suitable control system, e.g. a microprocessor, as a function of the number of spinning stations of the group identified as down with uncorrectable yarn breaks and as a further function of the total elapsed operating time of the group since the last bobbin exchange operation.

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