EP 1389640 B1 20070808 - Method for running a ring-spinning machine and ring-spinning machine
Title (en)
Method for running a ring-spinning machine and ring-spinning machine
Title (de)
Verfahren zum Betreiben einer Ringspinnmaschine und Ringspinnmaschine
Title (fr)
Méthode de commande d'un continu à filer et continu à filer
Publication
Application
Priority
DE 10237999 A 20020815
Abstract (en)
[origin: EP1389640A1] A ring spinning machine has a perforated suction roller (19) to provide sliver compaction in the drafting system. The effectiveness of sliver compaction, and hence the yarn hairiness, can be adjusted, e.g. by moving the position of a cover (25) or controlling the airflow. The machine is operated to achieve a limiting value of yarn hairiness, e.g. as measured by the temperature of the ring (26). An independent claim is also included for a ring spinning machine equipped for maintaining a predetermined degree of hairiness in the yarn. The hairiness can be measured indirectly by its friction properties at the ring (26) and traveler (27). This alters the ring temperature (33), which is then fed to a controller (30). Alternatively the hairiness can be measured directly by a sensor. Only some of the spinning position need be equipped to indicate hairiness and the average values used by the controller (30). The compaction device can have replaceable inserts (21) and spacers, depending on the fineness of the yarn.
IPC 8 full level
D01H 1/02 (2006.01); D01H 5/52 (2006.01); D01H 5/26 (2006.01); D01H 5/64 (2006.01); D01H 5/66 (2006.01); D01H 5/72 (2006.01); D01H 5/74 (2006.01); D01H 13/22 (2006.01)
CPC (source: EP)
D01H 5/72 (2013.01); D01H 13/22 (2013.01)
Designated contracting state (EPC)
DE ES IT
DOCDB simple family (publication)
EP 1389640 A1 20040218; EP 1389640 B1 20070808; DE 10237999 A1 20040226; DE 50307852 D1 20070920; JP 2004076247 A 20040311
DOCDB simple family (application)
EP 03014224 A 20030625; DE 10237999 A 20020815; DE 50307852 T 20030625; JP 2003207381 A 20030812