YARN BREAKAGE POSITION DETECTING METHOD AND MEASURING DEVICE

Japanese Patent JP3658522

B2

PROBLEM TO BE SOLVED: To measure the part of a process of a yarn breakage by detecting the occurrence of a yarn breakage in a designated section of a running yarn, detecting passing of the end of a broken yarn in a reference position downstream from the designated section, and measuring the yarn breakage occurrence position from the reference position.
SOLUTION: A tension detector 11 for measuring yarn tension of a yarn processing area is provided between a frictional false twister 6 and a delivery roller 7, and a yarn detector 12 for detecting passing of the end of a broken yarn in a reference position is provided in a designated position which is a reference position between guide rollers 2 immediately before winding. A tension signal form the tension detector 11 is largely lowered simultaneously with the occurrence of a yarn breakage, and a time yarn breakage occurrence signal is generated according to the level change. When a passing signal is output as a stepwise signal from the yarn detector 12 when the end of a broken yarn passes a reference position. The amount of time elapsed from the time when a yarn breakage occurrence signal is generated to the time when a passing signal is generated is measured to measure the yarn breakage position from the reference position.

Hiroaki Kusuen
Bunji Hamasu
Mitsumasa Sasaki

JP22624999A

June 08, 2005

August 10, 1999

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TEIJIN FIBERS LIMITED

G01B21/00; B65H63/024; B65H63/028; B65H63/036; D02G1/02; (IPC1-7): B65H63/024; B65H63/028; B65H63/036; D02G1/02; G01B21/00

JP52057229Y1
JP48020886B1
JP54106337U
JP4217559A
JP53056043U
JP61221062A

Hideko Mihara

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