Global Patent Index - EP 1101846 A2

EP 1101846 A2 2001-05-23 - Piecing device comprising an evaluation unit for determining parameters of an automatic piecing process

Title (en)

Piecing device comprising an evaluation unit for determining parameters of an automatic piecing process

Title (de)

Anspinnvorrichtung mit einer Auswerteeinrichtung zur Ermittlung von Parametern eines automatischen Anspinnvorgangs

Title (fr)

Dispositif de rattache containant un dispositif d'evaluation des paramètres d'une procedure de rattachement automatique

Publication

EP 1101846 A2 (DE)

Application

EP 00119720 A

Priority

DE 19955674 A

Abstract (en)

A controller (24) momentarily augments the feed rate for the sliver (5) to prevent the formation of a length of yarn just after piecing that is thinner than the steady rate thickness. The required augmentation is determined by carrying out several test spins and measuring (23) the yarn thickness. A trace of the yarn thickness during start-up is shown on a display (28).

Abstract (de)

Die Erfindung betrifft eine Anspinnvorrichtung mit einer Auswerteeinrichtung zur Ermittlung von Parametern eines automatischen Anspinnvorgangs an einer Spinnstelle (1) einer Offenend-Rotorspinnmaschine, wobei eine Steuerungseinrichtung vorhanden ist, die zunächst in einer Testphase die Erzeugung von mindestens einem Testanspinner ohne Einzugsaufaddierung und die anschließende Entfernung des erzeugten Testanspinners steuert, daß die Auswerteeinrichtung für die Ermittlung der Länge einer dadurch jeweils in Fadenlaufrichtung gesehen nach dem Testanspinner hervorgerufenen Dünnstelle und die Bestimmung des für die Kompensation der Dünnstelle erforderlichen Umfangs der Einzugsaufaddierung aus der ermittelten Länge der Dünnstelle eingerichtet ist. Eine während der Testphase wirksame Reduzierung des Verzugs sichert eine störungsfreie Überprüfung des Testanspinners. Die Erfindung verkürzt die Optimierungsphase für Anspinner und führt schnell zu einem genaueren Ergebnis bei der Bestimmung der Einzugsaufaddierung. <IMAGE>

IPC 1-7 (main, further and additional classification)

D01H 4/48

IPC 8 full level (invention and additional information)

B65H 63/06 (2006.01); D01H 4/48 (2006.01); D01H 13/14 (2006.01); D01H 13/22 (2006.01); D01H 13/32 (2006.01)

CPC (invention and additional information)

D01H 13/32 (2013.01); D01H 4/50 (2013.01)

Designated contracting state (EPC)

CH DE IT LI

EPO simple patent family

EP 1101846 A2 20010523; EP 1101846 A3 20020724; EP 1101846 B1 20040204; CZ 20004275 A3 20010711; CZ 300965 B6 20090930; DE 19955674 A1 20010523; US 6339921 B1 20020122

INPADOC legal status


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- Free text: FORMER OWNER: OERLIKON TEXTILE GMBH & CO. KG, 42897 REMSCHEID, DE

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