Advancing material of indeterminate length – By orbitally traveling material-engaging surface – With control or adjustment means
Patent
1993-06-03
1995-02-14
Falik, Andrew M.
Advancing material of indeterminate length
By orbitally traveling material-engaging surface
With control or adjustment means
226 66, 66132R, B65H 5918
Patent
active
053887476
ABSTRACT:
An positive yarn feeding device including a support body mounted on a beam member, a multilayer yarn feeding wheel having frictional yarn feeding periphery, multiple drive pulleys, multiple tension controllers each having a movable yarn guiding arm, and a yarn braking assembly. The yarn feeding wheel and the drive pulleys are rotatably concentrically secured in a bearing of the support body and a clutch is disposed between the pulleys for optionally adjusting the operating speed of the roller. Each movable yarn guiding arm is disposed with a yarn guiding eyelet through which a yarn passes. The movable yarn guiding arm is pivotally supported between a first position where the yarn guiding eyelet is away from the frictional periphery of the yarn feeding wheel, and a second position where the yarn guiding eyelet is adjacent to the frictional periphery thereof. The yarn braking assembly is disposed on a yarn outgoing side of the yarn feeding wheel for keeping the yarn tensioned and avoiding twisting of adjacent yarns. The movable yarn guiding arms and the yarn braking assembly are exchangeably respectively disposed on two sides of the yarn feeding wheel.
REFERENCES:
patent: 4673139 (1987-06-01), Memminger et al.
patent: 4706476 (1987-11-01), Memminger et al.
patent: 4986316 (1991-01-01), Morohashi et al.
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