Winding – tensioning – or guiding – Helical or random winding of material – Including particular drive
Patent
1998-12-21
2000-03-21
Mansen, Michael R.
Winding, tensioning, or guiding
Helical or random winding of material
Including particular drive
28219, 118 78, 118688, 2424778, 2424863, B65H 6300, B05C 1100
Patent
active
060392827
ABSTRACT:
In order to improve the traveling and sliding properties of a yarn during its further processing, in particular for knitting, it is waxed during rewinding in cheese winding machines by passing it along a paraffin body. When the paraffin body is used up, the unwaxed yarn can cause yarn breaks or even needle breakages, which leads to production errors or lost production. At the winding stations, the drive of the friction drum is switched on and off at intervals to cause alternating acceleration phases with slippage between the friction drum and the bobbin and intervening slippage- free run-out phases to prevent pattern windings. The slippage is monitored over the course of the winding operation. If the slippage decreases in successive acceleration phases and remains at a low level, while the drive output of the friction drum remains unchanged, this is interpreted to indicate an outage of the paraffin application.
REFERENCES:
patent: 4696435 (1987-09-01), Hermanns
patent: 4805844 (1989-02-01), Hermanns et al.
patent: 5301887 (1994-04-01), Wirtz et al.
patent: 5826815 (1998-10-01), Hermanns et al.
patent: 5954289 (1999-09-01), Hermanns et al.
Hermanns Ferdinand-Josef
Meyer Urs
Mansen Michael R.
W. Schlafhorst AG & Co.
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