Method of contactless control of yarn in spinning and winding machine and apparatus for making the same

A yarn monitoring sensor (6) is subject to error due to transverse movement of yarn (3) in the sensing zone. The momentary position of the yarn is determined, e.g. according to the position of the traverse guide (9) of the wind-up, and a compensation related to its position is applied. The sensor ca...

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Bibliographische Detailangaben
1. Verfasser:	RIENAS GERHARD
Format:	Patent
Sprache:	cze ; eng
Schlagworte:	CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS NATURAL OR ARTIFICIAL THREADS OR FIBRES PACKING PERFORMING OPERATIONS PHYSICS SPINNING SPINNING OR TWISTING STORING TESTING TEXTILES TRANSPORTING
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Beschreibung
Zusammenfassung:	A yarn monitoring sensor (6) is subject to error due to transverse movement of yarn (3) in the sensing zone. The momentary position of the yarn is determined, e.g. according to the position of the traverse guide (9) of the wind-up, and a compensation related to its position is applied. The sensor can be an optical or capacitance sensor, acting as clearer and yarn monitor. The compensating values are determined by calibration with a test yarn using a sensor (18) in a region in the thread path where there is no transverse movement.