EP 0194524 B1 19890614 - WINDING METHOD
Title (en)
WINDING METHOD
Publication
Application
Priority
- DE 3507632 A 19850305
- DE 3514875 A 19850425
- DE 3523322 A 19850629
Abstract (en)
[origin: US4667889A] A method and apparatus for producing ribbon free wound yarn packages is disclosed. In accordance with the method, a textile yarn is wound into a core supported package while the yarn is guided onto the core by a traversing yarn guide. The speed of the traversing yarn guide is proportional to the rotational speed of the package to define a substantially constant winding ratio during each of a series of sequential steps of the winding operation. The speed of the traversing yarn guide rapidly increases at the beginning of each of the sequential steps to produce a stepped precision wind. During at least some of the steps of the precision wind process, the winding ratio is varied from a predetermined ideal winding ratio by a series of recurring deviations, thereby avoiding the formation of undesirable patterns on the surface of the package.
IPC 1-7
IPC 8 full level
B65H 54/38 (2006.01); B65H 54/42 (2006.01)
CPC (source: EP US)
B65H 54/383 (2013.01 - EP US); B65H 54/42 (2013.01 - EP US); B65H 2701/31 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0194524 A2 19860917; EP 0194524 A3 19870812; EP 0194524 B1 19890614; CN 1005029 B 19890823; CN 86100703 A 19860903; DE 3663931 D1 19890720; US 4667889 A 19870526
DOCDB simple family (application)
EP 86102619 A 19860228; CN 86100703 A 19860123; DE 3663931 T 19860228; US 83625686 A 19860305