Winding – tensioning – or guiding – Tension control or brake – Supply controlled
Patent
1999-04-16
2000-11-28
Walsh, Donald P.
Winding, tensioning, or guiding
Tension control or brake
Supply controlled
B65H 7700
Patent
active
061523968
ABSTRACT:
The invention relates to a variable-force discharge mechanism for materials loaded on a reel. Some material is drawn with an external device (1) from a reel (2) around a reversing wheel (6), said reel being driven or decelerated with a discharge motor (3). In order to reduce the tensile stress fluctuations of a material (5), the reversing wheel (6) is afforded a certain displacement (A), within which a resilient assembly (7-9) produces a counter-force for a traction force (F). The counter-force produced by the resilient assembly is created by a piston-cylinder unit (7), having its gas pressure adjustable by a regulating valve (9) which sustains an adjustable, constant counter-force.
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Lehto Pertti
Rapila Tero
T-Drill Oy
Walsh Donald P.
Webb Collin A.
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