Winding – tensioning – or guiding – Helical or random winding of material – Distributing material along the package
Patent
1997-07-15
1999-12-21
Mansen, Michael R.
Winding, tensioning, or guiding
Helical or random winding of material
Distributing material along the package
2424778, B65H 5438
Patent
active
060038063
ABSTRACT:
In a simplified method for preventing pattern windings in a winding process for producing random wound yarn packages at a winding station of a winding machine, either the circumferential speed of a yarn package or the traversing speed of a yarn guide is selected as a command variable and the other as a secondary variable. Then, in the winding process the winding roller of the winding station is accelerated and decelerated and the yarn guide is accelerated and decelerated so that each variable varies between respective predetermined maximum and minimum values. Each time the command variable reaches a predetermined maximum or minimum value, a signal is generated and: if a previous change in the secondary variable immediately prior to the generating of the signal was an increase in the secondary variable, then the secondary variable is decreased in response to the signal; and if a previous change in the secondary variable immediately prior to the generating of the signal was a decrease in the secondary variable, then the secondary variable is increased. Furthermore, if during the winding process the secondary variable equals a predetermined value, then the secondary variable is maintained at the predetermined value until a signal is generated.
Mansen Michael R.
W. Schlafhorst AG & Co.
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