EP 1089933 B1 20031008 - YARN CHANGING METHOD
Title (en)
YARN CHANGING METHOD
Title (de)
FADENCHANGIERUNG
Title (fr)
CHANGEMENT DE FIL
Publication
Application
Priority
- CH 9900253 W 19990610
- CH 127898 A 19980612
- CH 226798 A 19981111
Abstract (en)
[origin: WO9965810A1] The invention relates to a yarn-guide of a winding frame (1), which has the form of a pointer, hereafter referenced to as a pointer, and which is reduced in weight and shape towards its free end in order to enable a change of yarn (F) within a traverse yarn winding (H) at a high speed. In a preferred embodiment, a polynomial of at least one degree is used. In addition, the yarn is guided on a guide plate (6). The motor (8) is controlled by a control unit (12) so that the pointer (7) can be used for guiding the yarn (F) within the traverse yarn winding (H). Also, when the pointer stops in a position (C) within the traverse yarn winding (H) an end bead is formed on a ready-made spool and, when the pointer stops in a position (A or B) outside the limits of the traverse yarn winding (H), the yarn is grasped in position (A ) by a new core when it is drawn in (8) during changing of the spool, whereas in position (B) the yarn is wound on said core to form a yarn reserve winding before it is driven back once again within the traverse (H) by the pointer. The control unit and the motor co-operate to reverse the pointer at a selected reverse point. For that purpose, a reverse means operates in a contactless manner, e.g. electromagnetically.
IPC 1-7
IPC 8 full level
B65H 54/28 (2006.01); B65H 54/34 (2006.01); B65H 57/28 (2006.01)
CPC (source: EP US)
B65H 54/2827 (2013.01 - EP US); B65H 54/2884 (2013.01 - EP US); B65H 54/34 (2013.01 - EP US); B65H 57/003 (2013.01 - EP US); B65H 57/006 (2013.01 - EP US); B65H 2701/31 (2013.01 - EP US)
Designated contracting state (EPC)
BE CH DE IT LI NL
DOCDB simple family (publication)
WO 9965810 A1 19991223; AU 4028699 A 20000105; DE 59907306 D1 20031113; EP 1089933 A1 20010411; EP 1089933 B1 20031008; JP 2002518276 A 20020625; US 6505791 B1 20030114
DOCDB simple family (application)
CH 9900253 W 19990610; AU 4028699 A 19990610; DE 59907306 T 19990610; EP 99923364 A 19990610; JP 2000554646 A 19990610; US 71925501 A 20010404