Method and apparatus for forming a reserve winding on a rotating

Details Method and apparatus for forming a reserve winding on a rotating Method and apparatus for forming a reserve winding on a rotating

1992-09-18

1994-07-19

Gilreath, Stanley N.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 355A, 57263, B65H 5402

Patent

active

053301153

ABSTRACT:
In order to form parallel windings in the longitudinal end region of the empty tube, a drive roller, which is driven at a peripheral speed adapted to the constant thread withdrawal speed provided for the subsequent formation of the crosswinding, is placed onto the peripheral surface of the empty tube, which has been lifted from the winding cylinder, and the thread, which is delivered at a constant speed, is passed to the then driven empty tube. After formation of the reserve winding, the empty tube is lowered onto the winding cylinder. The thread is displaced towards the middle of the bobbin and, by way of adaptation to the shortening of the thread run occasioned thereby and to a change in diameter possibly then brought into effect, the peripheral speed of the drive roller is altered to maintain a constant thread wind-on tension. The thread is passed to the cross-winding device, and the drive roller is lifted from the empty tube. To form the reserve winding, a thread guide is movable into the region of the empty tube, which is held at a distance from the winding cylinder by the bobbin-lifting device. The drive of the drive roller together with the thread guide is connected to a common control device.

REFERENCES:
patent: 4327546 (1982-05-01), Derichs et al.
patent: 4821502 (1989-04-01), Bursek et al.
patent: 4891933 (1990-01-01), Raasch
patent: 4928475 (1990-05-01), Matsui et al.
patent: 5022222 (1991-06-01), Rupert et al.
patent: 5083716 (1992-01-01), Colli et al.
patent: 5150845 (1992-09-01), Colli et al.

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