Abstract:
Method fo monitoring the quality of an advancing yarn by continuously measuring the yarn tension, whereby determining the progression of the yarn tension upon occurrence of a defined failure (failure record), storing the failure record in a data memory, comparing the measured yarn tension with the failure record and generating an alarm signal, when a range of the yarn tension progression shows a similarity to the failure record.
Abstract:
The invention relates to a method for non-contacting determination and/or increasing the yarn quality of a running thread (8) or the quality of a spool (20) which is obtained by winding up a running thread (8), or for a non-contacting determination of a possible breakage and/or jamming of a running thread (8), by means of a sensor device which is arranged at a spool point (6) in a textile machine, with a laser beam (3) being produced by a light source (2) and being split by means of an optical splitting and guidance device (4) for splitting and guidance of the laser beam (3) into at least two beam elements (5a, 5b), which are then guided such that they are joined together again at the thread (8), with the laser-doppler anemometry method being used to produce measurement signals from the light which is reflected from the thread (8), which measurement signals are evaluated electronically in order to determine the yarn quality of the running thread (8), with respect to its hairiness or in order to determine the spool quality or to determine thread breakage and/or thread jamming. The invention also relates to an arrangement which is suitable for carrying out this method.
Abstract:
The invention concerns a yarn storage and feed device (1, 1', 1'') with a main body (4), a take-up element (9) on which the yarn (Y) is wound, a surface (17) for yarn storage (V) and a threading device with a compressed-air feeder system and a device for activating direction-jet nozzles (32, 33, 33', 35, 37, 37', 73). At least one direction-jet nozzle (32) located between the point of entry (Z) of the yarn into the storage and feed device and the feed-out point (11) from the yarn-winding element (9) can be activated independently of the nozzles fitted between the feed-out point (11) and the guide (22), in order, in the event of a partial failure with stored yarn (V) remaining on the storage surface (17), to be able to blow the yarn end to below the feed-out point (11).
Abstract:
Die Erfindung betrifft eine Textilmaschine (1), insbesondere Spulmaschine, mit einer Vielzahl von Arbeitsstellen (2) mit Funktionsmitteln zur Ausführung von Betriebsfunktionen, Mitteln (44, 45, 15) zur Überwachung des Produktionsverlaufes während der Produktion und Mitteln (54, 47) die dazu ausgebildet sind, eine Abweichung von einem gewünschten Produktionsverlauf zu ermitteln. Erfindungsgemäß sind an einer Arbeitsstelle (2) Abläufe zur automatischen Überprüfung von Funktionsmitteln ausführbar und Mittel (41) sind dazu ausgebildet, in Abhängigkeit von den ermittelten Abweichungen vorher festgelegte Abläufe zur automatischen Überprüfung mindestens eines Funktionsmittels einer Arbeitsstelle (2) bei einer Produktionsunterbrechung auszulösen, wobei Anzeigemittel (51) und Mittel (60) zur Übertragung des Ergebnisses der Überprüfung an die Anzeigemittel vorhanden sind und das Ergebnis der Überprüfung an den Anzeigemitteln (51) ablesbar ist.
Abstract:
A device and a method for fiber processing control capable of investigating the cause of a monitored event and rapidly and accurately proposing a measure against the event by monitoring a selected monitored event for possibility, detecting the occurrence thereof, and processing the monitored event so as to easily specify on whether the cause of occurrence of the event lies in a fiber processing machine itself or in fed yarns based on the monitored event occurred.
Abstract:
A moving material, thread, yarn, fabric or wire (1), is directed to pass over a vibrating arm (2). The vibrating arm (2) is induced to vibrate due to contact with moving material (1). The Vibration information, amplitude and frequency, is conversion to an electrical analog of the mechanical vibration. In a preferred embodiment of this device, converted to electrical analog is produced by a hall effect sensor (3) due to changes in the magnetic field caused by vibrations of the steel vibrating arm (2) in proximity ofa magnet. The magnet is positioned below the hall effect sensor (3).
Abstract:
Die Erfindung betrifft ein Verfahren zum berührungslosen Bestimmen und/oder Erhöhen der Garnqualität eines laufenden Fadens (8) oder der Qualität einer Spule (20), die durch Aufwickeln eines laufenden Fadens (8) erhalten wird, oder zum berührungslosen Bestimmen eines möglichen Bruchs und/oder Einklemmens eines laufenden Fadens (8), mittels einer an einer Spulstelle (6) einer Textilmaschine angeordneten Sensoreinrichtung, wobei von einer Lichtquelle (1, 2) ein Laserstrahl (3) erzeugt und dieser mittels einer optischen Teil- und Lenk-Einrichtung (4) zur Teilung und Lenkung des Laserstrahls (3) in mindestens zwei Teilstrahlen (5a, 5b) geteilt wird, die anschließend so geführt werden, dass sie am Faden (8) wieder zusammentreffen, wobei aus dem vom Faden (8) reflektierten Licht nach dem Laser-Doppler-Anemometrie-Verfahren Messsignale erzeugt werden, die zur Bestimmung der Garnqualität des laufenden Fadens (8) bezüglich seiner Haarigkeit oder zur Bestimmung der Spulenqualität oder zur Bestimmung eines Fadenbruchs und/oder einer Fadeneinklemmung elektronisch ausgewertet werden. Die Erfindung betrifft ferner eine Anordnung die zur Durchführung dieses Verfahrens geeignet ist.
Abstract:
A moving material, thread, yarn, fabric or wire (1), is directed to pass over a vibrating arm (2). The vibrating arm (2) is induced to vibrate due to contact with moving material (1). The Vibration information, amplitude and frequency, is conversion to an electrical analog of the mechanical vibration. In a preferred embodiment of this device, converted to electrical analog is produced by a hall effect sensor (3) due to changes in the magnetic field caused by vibrations of the steel vibrating arm (2) in proximity ofa magnet. The magnet is positioned below the hall effect sensor (3).
Abstract:
A take-up device (1) mounts thereto a vibration pickup sensor (2) which captures vibration information generated from the take-up device, and the vibration information is fed to a center station (5) through LAN 4 or the like to be stored therein. A host computer (8) outputs a thread changeover command when a length of thread in the course of being wound about the take-up device amounts to a predetermined amount of winding, and in accordance with the command the center station (5) stores the above value of vibration from the vibration pickup sensor (2) in a memory unit (6) in a predetermined form a predetermined period of time after a revolving condition of a take-up spindle on the take-up device (1) becomes stable. The take-up device is constructed such that the stored take-up information is suitably outputted to a printer (7), a display unit (10) and the like. A method of taking up thread which provides a maintenance system which enables identification of the present condition of the take-up device in operation, enables readily detection of an abnormality or abnormalities generated during operation of a spindle in a short time and easily provides decision data with respect to a location or locations where an abnormality or abnormalities are generated, in the event of an abnormality or abnormalities being generated, in a short time; and a take-up device therefor are obtained.