Method and apparatus for transferring a yarn to a winding statio

Details Method and apparatus for transferring a yarn to a winding statio Method and apparatus for transferring a yarn to a winding statio

1990-09-10

1992-11-03

Stodola, Daniel P.

Textiles: spinning, twisting, and twining

Apparatus and processes

Piecing up

57263, 57264, 242 356R, D01H 1304, D01H 910

Patent

active

051598043

ABSTRACT:
A method for transferring a yarn after a yarn break to a normal yarn travel position at a textile machine winding station including making a yarn connection between a yarn supply point and a takeup bobbin and subsequently transferring the yarn to the normal yarn travel position at a transfer point at the reciprocating yarn guide with a tranfer motion of a yarn transfer device of a device that re-establishes yarn travel. The chronological course of the making of the yarn connection and the transverse motion of the yarn guide are monitored. The tranfer motion of the yarn transfer device and the transverse motion of the yarn guide are adapted to one another as a function of the chronological course for causing the yarn and the yarn guide to substantially simultaneously arriving at the transfer point. An apparatus for performing the method includes a first device for monitoring reciprocation of the yarn guide to a yarn tranfer point. A second device detects and processes signals from the first device and ascertains the time remaining for the guide to reach the transfer point. A third device which re-establishes a yarn connection has a device for transferring the yarn to the normal yarn travel position at the transfer point and a fourth device for chronologically adapting the making of the yarn connection to the motion of the yarn transfer device and initiating the transfer motion of the yarn transfer device as a function of other signals from the second device.

REFERENCES:
patent: 4078372 (1978-03-01), Stahlecker
patent: 4109450 (1978-08-01), Yoshida et al.
patent: 4120140 (1978-10-01), Raascle et al.
patent: 4777790 (1988-10-01), Raasch
patent: 4915315 (1990-04-01), Kamp et al.

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