Draw-off device with adjustable tension for circular knitting ma

Details Draw-off device with adjustable tension for circular knitting ma Draw-off device with adjustable tension for circular knitting ma

1994-03-25

1995-10-17

Calvert, John J.

Textiles: knitting

Fabric manipulation

Take-ups

242180CS, 242415, 474111, 66153, D04B 1588

Patent

active

054579678

ABSTRACT:
A draw-off device for taking down flexible goods with a steplessly adjustable draw-off tension from a machine producing or processing the goods, the draw-off device has at least one draw-off roller, a drive source, and a V-belt transmission connecting the draw-off roller and the drive source for driving the draw-off roller, the transmission comprising a V-belt pulley having two conical flanges, at least one of the flanges being mounted so as to be axially movable so as to alter an effective diameter of the V-belt pulley, the at least one movable flange being biased by spring force in direction of the other of the flanges, a V-shaped belt at least partially wrapping the V-belt pulley, at least one tensioning roller for and at least partially wrapped by the V-belt, a unit for adjusting the tensioning roller in a preselected position in order to adjust the take-down tension to a preselected value by a respective displacement of the at least one movable flange, and a locking unit for holding the tensioning roller in the preselected position.

REFERENCES:
patent: 205414 (1878-06-01), Porter et al.
patent: 2171741 (1939-09-01), Cohn et al.
patent: 2649811 (1953-08-01), Noe
patent: 2760362 (1956-08-01), Trumpio
patent: 2979587 (1961-02-01), Estes
patent: 2986353 (1961-05-01), McCoy
patent: 3070319 (1962-12-01), Mackie
patent: 3136169 (1964-06-01), Karger et al.
patent: 3504560 (1970-04-01), Wunsch
patent: 5176581 (1993-01-01), Kumm

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