EP 0347535 B1 19930630 - PROCESS AND APPARATUS FOR PNEUMATICALLY GRASPING AND DRAWING OFF VERTICALLY UPWARDS THE END OF A YARN ON A COP
Title (en)
PROCESS AND APPARATUS FOR PNEUMATICALLY GRASPING AND DRAWING OFF VERTICALLY UPWARDS THE END OF A YARN ON A COP
Publication
Application
Priority
DE 3821343 A 19880624
Abstract (en)
[origin: EP0347535A1] The end of a yarn on a cop is grasped by means of an air flow which sweeps over the cop surface from the bottom upwards in a swirling and/or helical fashion, and is then drawn vertically upwards from the cop (4). During the flowing of the air, the cop (4) is caused to roll with a wobble on a guiding face (6') which surrounds the cop (4). The end of the yarn is seized above the cop core and/or transferred automatically to a stand-by position, thread-joining means, spooling device or a similar device. The stand-by position used can also be the core interior. The air can be blown tangentially and obliquely upwards into a tube (6) surrounding the cop (4) through air nozzles (7, 8, 9). For the purpose of limiting the blowing time, switchable valves (V1, V2) can be present. <IMAGE>
IPC 1-7
IPC 8 full level
B65H 67/08 (2006.01)
CPC (source: EP US)
B65H 67/088 (2013.01 - EP US); B65H 2701/31 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR IT LI
DOCDB simple family (publication)
EP 0347535 A1 19891227; EP 0347535 B1 19930630; DE 3821343 A1 19891228; DE 58904834 D1 19930805; JP H02106565 A 19900418; US 4921179 A 19900501
DOCDB simple family (application)
EP 89106039 A 19890406; DE 3821343 A 19880624; DE 58904834 T 19890406; JP 16100389 A 19890626; US 37137389 A 19890626