Yarn piecing method for yarn spinning machine

Details Yarn piecing method for yarn spinning machine Yarn piecing method for yarn spinning machine

1990-11-08

1992-09-01

Stodola, Daniel P.

Textiles: spinning, twisting, and twining

Apparatus and processes

Splicing

57261, 57264, D01H 1326, D01H 746, D01H 792

Patent

active

051428563

ABSTRACT:
A yarn piecing method for a yarn spinning machine including a yarn processing portion comprising a drafting unit, a yarn forming unit, and a yarn winding unit and a yarn piecing unit for piecing an end of a yarn spun from the yarn forming unit with an end of a yarn withdrawn from a yarn package, the method including the steps of guiding yarns to be pieced to each other to a yarn sensor before a yarn piecing operation is carried out, detecting whether any yarn defect exists on one or more of the yarns to be pieced, and determining to carry out the yarn piecing operation when no yarn defect is detected and not to carry it out when a yarn defect is detected.

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patent: 4878344 (1989-11-01), Igel

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