THREAD MONITORING DEVICE, THREAD MONITORING METHOD, THREAD WINDER, AND THREAD MONITORING SYSTEM

The yarn monitoring device 8 includes: a light emitter 22 configured to emit light toward a traveling area where yarn Y travels; a light receiver 24 disposed opposite to the light emitter 22 across the traveling area and configured to receive the light emitted from the light emitter 22 and partially...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MINAMINO Katsushi, NAKADE Kazuhiko
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING NATURAL OR ARTIFICIAL THREADS OR FIBRES PACKING PERFORMING OPERATIONS PHYSICS SPINNING SPINNING OR TWISTING STORING TESTING TEXTILES TRANSPORTING
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Beschreibung
Zusammenfassung:	The yarn monitoring device 8 includes: a light emitter 22 configured to emit light toward a traveling area where yarn Y travels; a light receiver 24 disposed opposite to the light emitter 22 across the traveling area and configured to receive the light emitted from the light emitter 22 and partially blocked by the yarn Y and output a detection signal corresponding to the amount of the light received; and a control section 26 configured to detect, based on the detection signal, a state of the yarn Y traveling in the traveling area. The control section 26 estimates the hairiness quantity of the yarn Y by extracting a predetermined frequency component from the detection signal and calculating the standard deviation or the mean deviation of the extracted predetermined frequency component.