EP 0093258 B1 19861210 - METHOD OF AVOIDING IMAGES AT THE RANDOM CROSS WINDING OF A YARN
Title (en)
METHOD OF AVOIDING IMAGES AT THE RANDOM CROSS WINDING OF A YARN
Publication
Application
Priority
- DE 3216334 A 19820503
- DE 3217562 A 19820511
- DE 3219880 A 19820527
Abstract (en)
[origin: EP0093258A2] 1. Method of avoiding ribbons at the random cross winding of a yarn by temporarily changing the traverse speed, wherein the following measures are simultaneously taken : 1.1 changing the traverse speed continuously between a maximum value and a minimum value (oscillation) over predetermined stages of the winding cycle ; 1.2 changing the average value of the traverse speed temporarily between an initial value NCA and a disturbance variable NCS, or conversely, when the winding ratios FA = NS/NCA or FS = NS/NCS approach predetermined ribbon ratios FSP, with such change being discontinuous, so that the winding ratio maintains a predetermined minimum safety distance from the ribbon ratio FSP and suddenly and rapidly passes through the minimum safety distance FSP+-Smin of the ribbon, with the minimum safety distance Smin being the smallest allowable difference between a winding ratio FA or FS and the next ribbon ratio FSP, the spindle speed NS being the number of rotations of the spindle per unit of time, and the traverse speed being the number of the double strokes per unit of time, each of which consisting of one forward and one return stroke.
IPC 1-7
IPC 8 full level
B65H 54/08 (2006.01); B65H 54/38 (2006.01)
CPC (source: EP)
B65H 54/38 (2013.01); B65H 2701/31 (2013.01)
Citation (examination)
ARTOBOLEVSKI "Les mécanismes dans la technique moderne". Tome 2, page 588 (Editions MIR, Boscon.)
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0093258 A2 19831109; EP 0093258 A3 19840718; EP 0093258 B1 19861210; DE 3368253 D1 19870122
DOCDB simple family (application)
EP 83102811 A 19830322; DE 3368253 T 19830322