EP0128240B1 - Device for detecting wild thread windings on rotary members - Google Patents

Device for detecting wild thread windings on rotary members Download PDF

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Publication number
EP0128240B1
EP0128240B1 EP83110662A EP83110662A EP0128240B1 EP 0128240 B1 EP0128240 B1 EP 0128240B1 EP 83110662 A EP83110662 A EP 83110662A EP 83110662 A EP83110662 A EP 83110662A EP 0128240 B1 EP0128240 B1 EP 0128240B1
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EP
European Patent Office
Prior art keywords
rotating part
sensor
rotating
roller
markings
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP83110662A
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German (de)
French (fr)
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EP0128240A1 (en
Inventor
Walter Ing.(Grad.) Erkens
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Cerdia Produktions GmbH
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Rhodia AG
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Publication of EP0128240A1 publication Critical patent/EP0128240A1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/003Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to winding of yarns around rotating cylinders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/30Handled filamentary material
    • B65H2701/31Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a device for monitoring rotating parts of machines and systems for the production, processing and processing of monofilaments, yarns, wires, tapes, webs and the like for emerging windings or casseroles with a surface arranged opposite the surface of the rotating part.
  • sensor consisting of a transmitter and a receiver.
  • Under wires are, for example, metal wires, z. B. paper tapes or those made of textile fabrics, plastic or metal foils and webs of paper webs, webs of textile fabrics or knitted fabrics, nonwovens, plastic or metal foils or the like.
  • yarns are wound onto cylindrical tubes in certain production stages. These sleeves on the winding machines and systems are usually driven according to the friction principle. So-called friction, drive or delivery rollers are used for the drive, which are touched by the sleeves to be driven along a surface line.
  • the yarn to be wound onto the tube runs - viewed in the direction of yarn travel - in front of the roller / tube contact point with a specific wrap angle over the roller. If there is a break in the yarn or - if it is a filament yarn - individual filaments of the yarn, the end of the yarn lying on the roller in front of the roller / sleeve contact point or the filament ends lying on the roller in front of the roller / sleeve contact point in most cases on the roller.
  • Devices which detect the build-up or formation of windings on rotating parts of, for example, winding machines and systems and report such a fault by passing on a signal and / or bring the relevant winding unit, machine or system to a standstill.
  • These devices work mechanically; there are movably arranged sensors in the form of levers, rulers. Rails or the like are used, which are usually parallel to the axis of the rotating part and have a certain distance from the surface thereof. The dimension of this distance is u. a. due to the dimensions of the sensors, the type of attachment and the possibility of aligning the sensors, the operability of the machine and the consideration of the accident prevention regulations. However, this also stipulates that the resulting roll must reach a certain thickness on the surface of the rotating part before it comes into contact with the sensor.
  • the mechanically working sensor When the winding is built up, the mechanically working sensor is first touched by the growing winding and then travels a certain distance with the increase in the diameter of the winding, at the end of which a switch connected to the sensor responds, which generates a signal.
  • This monitoring device works on the principle of changing the intensity (in the sense of a weakening or amplification) of the (light) beam to be received by the receiver;
  • contamination of the transmitter output and / or the receiver input and / or the roller surface, but also light from an external light source, can lead to a change in the intensity of the light beam with the result of an incorrect switching.
  • DE-C-885 908 also describes the use of contactless transmitting and receiving devices to prevent the undesirable Known winding of threads on rotating rollers.
  • the signal triggered during the winding formation is also caused here by a change in the intensity of the light beam falling on the photocell (cf. US Pat. No. 4,188,545) due to a change in the degree of reflection or absorption of the surface of the monitored roller.
  • Certain requirements are placed on the degree of reflection or absorption of the roller surface and also of the threads.
  • contamination of the transmitter output and / or the receiver input, as well as light from an external light source can also lead to a change in the intensity of the light beam, so that incorrect switching is possible.
  • FR-A-1 391 183 also describes the use of a contactless transmitting and receiving device, however, this involves monitoring a linear movement or the standstill of a linearly moving part.
  • FR-A-1 391 183 exemplifies the use for controlling the movement of a textile machine; this could be the movement of a ring bench on a twisting or draw twisting machine, in which the point in time at which the standstill at the reversal points or the position of the reversal point is monitored.
  • the device according to FR-A-1 391 183 would also be suitable for determining unintentional stoppages of the ring bench within the lifting movement, but not for determining an unintentional wrap of a rotating machine part by, for example, B. yarns, wires and webs.
  • the invention has for its object to provide a device for monitoring rotating parts for emerging windings or casseroles of the type mentioned, with the resulting windings or casseroles on rotating parts can be reliably detected, while at the same time being based on a high level of interference immunity should be placed.
  • the thickness of the roll on this roller was measured. Only a few game layers could be determined, the total thickness of which was less than 0.5 mm.
  • the surface of the rotating parts is designed so that markings are formed. These markings must of course be designed in such a way that they also meet the technological requirements, which relate, among other things, to the surface shape and roughness and the wear.
  • the marking of the rotating parts can e.g. B. done by dividing their surface into zones of different brightness or into zones of different reflectance. This can be distinguished, for example, by coloring surface parts, by applying or inserting surface parts made of materials other than the base material from which the surface of the rotating part is made Liche execution of the surface structure and / or different execution of the surface roughness and / or different execution of the form accomplish.
  • switching elements z. B. relays can be used.
  • the design can be such that the sensor is working in the visible light range and the markings have a different brightness compared to the rest of the surface of the rotating part or that the sensor is working in the ultraviolet radiation (UV) range and the markings are opposite have a different UV reflectance on the remaining surface of the rotating part or that the sensor is working in the area of ultrasound (US) and the markings have a different US reflectance compared to the remaining surface of the rotating part.
  • the sensor can also be a pneumatic one, the markings having a different shape from the rest of the surface of the rotating part.

Description

Die Erfindung betrifft eine Vorrichtung zur Überwachung von drehenden Teilen von Maschinen und Anlagen für die Herstellung, Be- und Verarbeitung von Monofilamenten, Garnen, Drähten, Bändchen, Bahnen und dergleichen auf entstehende Wickel bzw. Aufläufe mit einem gegenüber der Oberfläche des drehenden Teils angeordneten, aus einem Sender und einem Empfänger bestehenden Sensor. Unter Drähten sind beispielsweise Metalldrähte, unter Bändchen z. B. Papierbändchen oder solche aus textilen Geweben, Kunststoff- oder Metallfolien und unter Bahnen Papierbahnen, Bahnen aus textilen Geweben oder Gewirken, Vliesstoffen, Kunststoff-oder Metallfolien o. ä. zu verstehen.The invention relates to a device for monitoring rotating parts of machines and systems for the production, processing and processing of monofilaments, yarns, wires, tapes, webs and the like for emerging windings or casseroles with a surface arranged opposite the surface of the rotating part. sensor consisting of a transmitter and a receiver. Under wires are, for example, metal wires, z. B. paper tapes or those made of textile fabrics, plastic or metal foils and webs of paper webs, webs of textile fabrics or knitted fabrics, nonwovens, plastic or metal foils or the like.

In der Chemiefaser- und Textilindustrie werden in bestimmten Produktionsstufen Garne auf zylindrische Hülsen aufgewickelt. Dabei werden diese Hülsen auf den Spulmaschinen und -anlagen üblicherweise nach dem Friktionsprinzip angetrieben. Zum Antrieb dienen sogenannte Friktions-, Treib- oder Lieferwalzen, die von den anzutreibenden Hülsen längs einer Mantellinie berührt werden. Das auf die Hülse aufzuwickelnde Garn läuft - in Garnlaufrichtung gesehen - vor der Berührungsstelle Walze/Hülse mit einem bestimmten Umschlingungswinkel über die Walze. Tritt nun ein Bruch des Garns oder - wenn es sich um ein Filamentgarn handelt - einzelner Filamente des Garns ein, so haftet das vor der Berührungsstelle Walze/Hülse auf der Walze aufliegende Garnende oder haften die vor der Berührungsstelle Walze/Hülse auf der Walze aufliegenden Filamentenden in den meisten Fällen an der Walze. Dadurch bildet sich auf der Walze ein « Garnauf lauf oder ein « Wickel a. Durch diesen Wickel wird die Oberfläche der bis dahin bewickelten Hülse beeinträchtigt und es besteht die Gefahr, daß durch den Wickel, wenn er größere Ausmaße annimmt, einzelne Teile der Maschine beschädigt werden oder gar die gesamte Maschine beschädigt wird. Dieses trifft sinngemäß auch zu für andere drehende Teile von Chemiefaser- und Textilmaschinen, beispielsweise solche drehenden Teile, mit denen ein Garntransport oder eine Garnumlenkung erfolgt, also an Galetten. Umlenkrollen etc., ferner für drehende Teile von Maschinen für die Herstellung, Be- und Verarbeitung von Drähten, wie Metalldrähten, Bändchen, wie Bändchen aus Kunststoff-Folie, oder Bahnen, wie textilen Gewebebahnen.In the chemical fiber and textile industry, yarns are wound onto cylindrical tubes in certain production stages. These sleeves on the winding machines and systems are usually driven according to the friction principle. So-called friction, drive or delivery rollers are used for the drive, which are touched by the sleeves to be driven along a surface line. The yarn to be wound onto the tube runs - viewed in the direction of yarn travel - in front of the roller / tube contact point with a specific wrap angle over the roller. If there is a break in the yarn or - if it is a filament yarn - individual filaments of the yarn, the end of the yarn lying on the roller in front of the roller / sleeve contact point or the filament ends lying on the roller in front of the roller / sleeve contact point in most cases on the roller. As a result, a «yarn bobbin or a« wrap a. This winding affects the surface of the previously wound sleeve and there is a risk that the winding, if it takes on larger dimensions, will damage individual parts of the machine or even damage the entire machine. This also applies mutatis mutandis to other rotating parts of chemical fiber and textile machines, for example those rotating parts with which a yarn transport or a yarn deflection takes place, that is to say on godets. Deflection rollers etc., also for rotating parts of machines for the manufacture, treatment and processing of wires, such as metal wires, tapes, such as tapes made of plastic film, or webs, such as textile fabric webs.

Es sind Vorrichtungen bekannt, welche den Aufbau bzw. das Entstehen von Wickeln auf drehenden Teilen von beispielsweise Spulmaschinen und -anlagen erfassen und durch Weitergabe eines Signals eine solche Störung melden und/ oder die Stillsetzung der betreffenden Spulstelle, der Maschine oder der Anlage bewirken. Diese Vorrichtungen arbeiten mechanisch ; es werden dabei beweglich angeordnete Fühler in Form von Hebeln, Linealen. Schienen o. ä. eingesetzt, die üblicherweise parallel zur Achse des drehenden Teils stehen und zu dessen Oberfläche einen bestimmten Abstand haben. Das Maß dieses Abstands ist u. a. bedingt durch die Abmessungen der Fühler, die Art der Befestigung und die Möglichkeit zur Ausrichtung der Fühler, die Bedienbarkeit der Maschine und die Berücksichtigung der Unfallverhütungsvorschriften. Damit ist jedoch auch festgelegt, daß der entstehende Wickel auf der Oberfläche des drehenden Teils eine bestimmte Dicke erreichen muß, ehe er mit dem Fühler in Berührung kommt.Devices are known which detect the build-up or formation of windings on rotating parts of, for example, winding machines and systems and report such a fault by passing on a signal and / or bring the relevant winding unit, machine or system to a standstill. These devices work mechanically; there are movably arranged sensors in the form of levers, rulers. Rails or the like are used, which are usually parallel to the axis of the rotating part and have a certain distance from the surface thereof. The dimension of this distance is u. a. due to the dimensions of the sensors, the type of attachment and the possibility of aligning the sensors, the operability of the machine and the consideration of the accident prevention regulations. However, this also stipulates that the resulting roll must reach a certain thickness on the surface of the rotating part before it comes into contact with the sensor.

Beim Aufbau des Wickels wird also zuerst der mechanisch arbeitende Fühler vom anwachsenden Wickel berührt und legt dann mit der Zunahme des Durchmessers des Wickels einen bestimmten Weg zurück, an dessen Ende ein mit dem Fühler verbundener Schalter anspricht, der ein Signal erzeugt.When the winding is built up, the mechanically working sensor is first touched by the growing winding and then travels a certain distance with the increase in the diameter of the winding, at the end of which a switch connected to the sensor responds, which generates a signal.

Von der ersten Berührung des mit dem drehenden Teil, z. B. einer Walze, sich drehenden Wickels mit dem Fühler bis zum Ansprechen des Signalschalters entstehen an der Berührungsstelle Fühler/Wickel - infolge der Beschädigung des Garns - Flusen. Diese Flusen beeinflussen dadurch, daß sie an der betroffenen oder auch an benachbarten Spulstellen eingespult werden, die Qualität des Garns bzw. der Garne, was bei dessen bzw. deren Weiterverarbeitung zu Schwierigkeiten führt. Außerdem wird durch die Flusen die Funktionssicherheit der sich drehend und der sich linear bewegenden Teile der Spulmaschine beeinträchtigt. Dieses macht sich insbesondere bei den heute üblichen hohen Geschwindigkeiten der Aufwickel-, Umspul- und Verarbeitungsmaschinen in den Chemiefaser-Produktionsstätten sehr nachteilig bemerkbar.From the first touch of the rotating part, e.g. B. a roller, spinning reel with the sensor until the signal switch triggers at the contact point sensor / winder - due to damage to the yarn - fluff. These lint influence the quality of the yarn or yarns by being wound on the affected or also on adjacent winding stations, which leads to difficulties in the processing thereof. In addition, the fluff affects the functional reliability of the rotating and the linearly moving parts of the winder. This is particularly noticeable at today's high speeds of winding, rewinding and processing machines in man-made fiber production facilities.

Die beschriebenen Nachteile gelten in ähnlicher Weise auch für drehende Teile von Maschinen und Anlagen für die Herstellung, Be- und Verarbeitung von Drähten, Bändchen oder Bahnen.The disadvantages described also apply in a similar way to rotating parts of machines and systems for the production, treatment and processing of wires, tapes or webs.

Aus der US-A-4 188 545 ist es bekannt, für die Überwachung auf Fadenwicklern an Galetten oder Walzen von Fadenverarbeitungseinrichtungen berührungslose Sende- und Empfangsanordnungen einzusetzen, um im Störungsfall (Auftreten eines Fadenwicklers) den Stillstand der Fadenverarbeitungseinrichtung oder das Abschneiden des Fadens zu bewirken.From US-A-4 188 545 it is known to use contactless transmitting and receiving arrangements for monitoring on thread winders on godets or rollers of thread processing devices, in order to bring the thread processing device to a standstill or to cut the thread in the event of a fault (occurrence of a thread winder) .

Diese Überwachungsvorrichtung arbeitet nach dem Prinzip der Änderung der Intensität (im Sinne einer Abschwächung oder Verstärkung) des vom Empfänger aufzufangenden (Licht) strahles ; hier kann eine Verschmutzung des Senderausgangs und/oder des Empfängereingangs und/oder der Walzenobertläche, aber auch Licht einer fremden Lichtquelle, zu einer Intensitätsänderung des Lichtstrahles mit der Folge einer Fehlschaltung führen.This monitoring device works on the principle of changing the intensity (in the sense of a weakening or amplification) of the (light) beam to be received by the receiver; Here, contamination of the transmitter output and / or the receiver input and / or the roller surface, but also light from an external light source, can lead to a change in the intensity of the light beam with the result of an incorrect switching.

Auch aus der DE-C-885 908 ist der Einsatz von berührungslosen Sende- und Empfangseinrichtungen zur Verhütung des unerwünschten Wickelns von Fäden auf rotierenden Walzen bekannt.DE-C-885 908 also describes the use of contactless transmitting and receiving devices to prevent the undesirable Known winding of threads on rotating rollers.

Das bei der Wickelbildung ausgelöste Signal wird auch hierbei hervorgerufen durch eine Intensitätsänderung des auf die Fotozelle fallenden Lichtstrahls (vgl. US-A-4 188 545), und zwar auf Grund einer Änderung des Reflexions- oder Absorptionsgrades der Oberfläche der überwachten Walze. An Reflexions- oder Absorptionsgrad der Walzenoberfläche und auch der Fäden werden bestimmte Anforderungen gestellt. Außerdem kann hier ebenfalls eine Verschmutzung des Senderausgangs und/oder des Empfängereingangs, wie auch Licht einer fremden Lichtquelle, zu einer Intensitätsänderung des Lichtstrahles führen, so daß Fehlschaltungen möglich sind.The signal triggered during the winding formation is also caused here by a change in the intensity of the light beam falling on the photocell (cf. US Pat. No. 4,188,545) due to a change in the degree of reflection or absorption of the surface of the monitored roller. Certain requirements are placed on the degree of reflection or absorption of the roller surface and also of the threads. In addition, contamination of the transmitter output and / or the receiver input, as well as light from an external light source, can also lead to a change in the intensity of the light beam, so that incorrect switching is possible.

Die FR-A-1 391 183 beschreibt ebenfalls den Einsatz einer berührungslosen Sende- und Empfangseinrichtung, jedoch handelt es sich hierbei um die Überwachung einer linearen Bewegung bzw. des Stillstandes eines linear bewegten Teiles. In der FR-A-1 391 183 wird beispielhaft auf den Einsatz zur Kontrolle der Bewegung einer Textilmaschine hingewiesen ; das könnte die Bewegung einer Ringbank an einer Zwirn- oder Streckzwirnmaschine sein, bei der der Zeitpunkt des Stillstandes an den Umkehrpunkten oder die Lage des Umkehrpunktes überwacht wird. Auch um unbeabsichtigte Stillstände der Ringbank innerhalb der Hubbewegung festzustellen, wäre die Vorrichtung gemäß FR-A-1 391 183 geeignet, nicht jedoch zur Ermittlung einer unbeabsichtigten Umschlingung eines drehenden Maschinenteils durch z. B. Garne, Drähte und Bahnen.FR-A-1 391 183 also describes the use of a contactless transmitting and receiving device, however, this involves monitoring a linear movement or the standstill of a linearly moving part. FR-A-1 391 183 exemplifies the use for controlling the movement of a textile machine; this could be the movement of a ring bench on a twisting or draw twisting machine, in which the point in time at which the standstill at the reversal points or the position of the reversal point is monitored. The device according to FR-A-1 391 183 would also be suitable for determining unintentional stoppages of the ring bench within the lifting movement, but not for determining an unintentional wrap of a rotating machine part by, for example, B. yarns, wires and webs.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zur Überwachung von drehenden Teilen auf entstehende Wickel bzw. Aufläufe der eingangs genannten Art zur Verfügung zu stellen, mit der entstehende Wickel bzw. Aufläufe auf drehenden Teilen zuverlässig erfaßt werden können, wobei zugleich eine hohe Störsicherheit zugrunde gelegt werden soll.The invention has for its object to provide a device for monitoring rotating parts for emerging windings or casseroles of the type mentioned, with the resulting windings or casseroles on rotating parts can be reliably detected, while at the same time being based on a high level of interference immunity should be placed.

Diese Aufgabe wird bei einer Vorrichtung der eingangs genannten Art durch die in dem kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmale gelöst.This object is achieved in a device of the type mentioned by the features specified in the characterizing part of claim 1.

Eine vorteilhafte Ausführungsform der erfindungsgemäßen Vorrichtung ist im Anspruch 2 angegeben.An advantageous embodiment of the device according to the invention is specified in claim 2.

Die Erfindung wird nachstehend anhand eines Beispiels näher erläutert.The invention is explained in more detail below using an example.

Beispielexample

An einem üblichen Schnellwickler für Chemiefasergarne mit einem Arbeitsbereich (Geschwindigkeitsbereich) von 3 500 bis 5 000 m/min, der sowohl nach dem Prinzip des Friktions- als auch Achsantriebs arbeiten kann, wurde das mit einem Abstand von 3 mm gegenüber der Oberfläche der zylindrischen Friktionswalze und parallel zu deren Achse angeordnete Fühlerlineal, das bei Auslenkung bei einem auf der Friktionswalze entstehenden Wickel einen elektrischen Schalter betätigt, entfernt. Auf der Oberfläche der Friktionswalze, die im ursprünglichen Zustand auf dem ganzen Umfang mattverchromt war. wurde auf galvanischem Wege ein achsparalleler über die ganze Länge der Friktionswalze reichender Streifen von 20 mm Breite glanzverchromt. Die Walze hatte einen Durchmesser von 160 mm.This was done at a distance of 3 mm from the surface of the cylindrical friction roller on a conventional high-speed winder for synthetic fiber yarns with a working range (speed range) of 3,500 to 5,000 m / min, which can work on the principle of both friction and axle drive and a sensor ruler arranged parallel to the axis thereof, which actuates an electrical switch when deflected when a roll is formed on the friction roller. On the surface of the friction roller, which was originally chrome-plated on the entire circumference. an axially parallel strip of 20 mm width extending over the entire length of the friction roller was electroplated with bright chrome. The roller had a diameter of 160 mm.

Bei 6 gleichzeitig zu bewickelnden Spulenhülsen wurden ebenso viele im Bereich der infraroten Strahlung arbeitende, jeweils aus einem Sender und einem Empfänger bestehende Sensoren (IR-Lichtschranken) mit einem Abstand von 5 mm zur Oberfläche und senkrecht zur Mittelachse der Friktionswalze so angeordnet, daß jeder Sensor mittig zum Wicklungshub der zugeordneten Spulenhülse steht.With 6 coils to be wound at the same time, just as many sensors (IR light barriers) working in the area of infrared radiation, each consisting of a transmitter and a receiver, were arranged at a distance of 5 mm from the surface and perpendicular to the central axis of the friction roller so that each sensor is centered on the winding stroke of the associated coil sleeve.

Für die Auslegung der Sensoren galten folgende Bedingungen :

  • Befindet sich die mattverchromte Fläche der Friktionswalze unter dem Sensor, so hat das vom Sensor ausgehende elektrische Signal eine Spannung von 50 Millivolt. Befindet sich der glanzverchromte Streifen der Friktionswalze unter dem Sensor, so hat das vom Sensor ausgehende elektrische Signal eine Spannung von 200 Millivolt. Bei einer Drehzahl von 8 400 Umdrehungen pro Minute ergaben sich somit 8 400 Signalwechsel pro Minute, was einer Frequenz von 140 Hz entspricht. Die zu den Schaltelementen gehörende Auswerte-Elektronik war eingestellt auf einen Arbeitsbereich von 100 bis 200 Hz ; sie gab an die zu den Schaltelementen gehörenden Ausgangsrelais dann ein Sammelsignal weiter, wenn die Frequenz des von den Sensoren kommenden Signalwechsels mindestens 1,0 Sekunden lang unter 40 Hz absank.
The following conditions apply to the design of the sensors:
  • If the matt chrome-plated surface of the friction roller is under the sensor, the electrical signal coming from the sensor has a voltage of 50 millivolts. If the bright chrome-plated strip of the friction roller is under the sensor, the electrical signal coming from the sensor has a voltage of 200 millivolts. At a speed of 8,400 revolutions per minute, there were 8,400 signal changes per minute, which corresponds to a frequency of 140 Hz. The evaluation electronics belonging to the switching elements were set to a working range from 100 to 200 Hz; it then passed on a collective signal to the output relays belonging to the switching elements when the frequency of the signal change coming from the sensors fell below 40 Hz for at least 1.0 seconds.

Beim Entstehen eines Bruchs eines der 6 auf denselben Wickler aufzuspulenden Filamentgarne aus Polyamid-6,6 mit jeweils einem Titer von 101 dtex und 17 Einzelfilamenten sank die Frequenz auf unter 40 Hz ab, was zur Abschaltung des Schnellwicklers bei gleichzeitigem Kappen (Abschneiden) der Garne der restlichen 5 Spulen dieses Wicklers führte.When a breakage occurred in one of the 6 filament yarns made of polyamide-6.6 to be wound onto the same winder, each with a titer of 101 dtex and 17 individual filaments, the frequency dropped to below 40 Hz, which caused the high-speed winder to be switched off while the yarns were cut (cut) of the remaining 5 coils of this winder.

Nach Stillstand der Friktionswalze wurde die Dicke des Wickels auf dieser Walze gemessen. Festzustellen waren nur wenige Gamlagen, deren Gesamtdicke unter 0,5 mm betrug.After the friction roller stopped, the thickness of the roll on this roller was measured. Only a few game layers could be determined, the total thickness of which was less than 0.5 mm.

Entsprechend der Erfindung ist die Oberfläche der sich drehenden Teile so ausgebildet, daß Markierungen entstehen. Diese Markierungen müssen selbstverständlich so gestaltet sein, daß sie auch die technologischen Forderungen, die sich u. a. auf die Oberflächengestalt und -rauhigkeit und den Verschleiß beziehen, erfüllen. Die Markierung der sich drehenden Teile kann z. B. dadurch erfolgen, daß deren Oberfläche in Zonen unterschiedlicher Helligkeit oder in Zonen unterschiedlichen Reflexionsgrads unterteilt wird. Dieses läßt sich beispielsweise durch Einfärben von Oberflächenteilen, durch Auftragen oder Einlegen von Oberflächenteilen aus anderen Werkstoffen als der Grundwerkstoff, aus dem die Oberfläche des drehenden Teils besteht, durch unterschiedliche Ausführung der Oberflächenstruktur und/ oder unterschiedliche Ausführung der Oberflächenrauhigkeit und/oder unterschiedliche Ausführung der Form bewerkstelligen.According to the invention, the surface of the rotating parts is designed so that markings are formed. These markings must of course be designed in such a way that they also meet the technological requirements, which relate, among other things, to the surface shape and roughness and the wear. The marking of the rotating parts can e.g. B. done by dividing their surface into zones of different brightness or into zones of different reflectance. This can be distinguished, for example, by coloring surface parts, by applying or inserting surface parts made of materials other than the base material from which the surface of the rotating part is made Liche execution of the surface structure and / or different execution of the surface roughness and / or different execution of the form accomplish.

Als Schaltelemente können z. B. Relais eingesetzt werden.As switching elements z. B. relays can be used.

Ferner kann die Ausbildung derart getroffen werden, daß der Sensor ein im Bereich sichtbaren Lichtes arbeitender ist und die Markierungen gegenüber der restlichen Oberfläche des drehenden Teils eine unterschiedliche Helligkeit aufweisen oder daß der Sensor ein im Bereich ultravioletter Strahlung (UV) arbeitender ist und die Markierungen gegenüber der restlichen Oberfläche des drehenden Teils einen unterschiedlichen UV-Reflexionsgrad aufweisen oder daß der Sensor ein im Bereich des Ultraschalls (US) arbeitender ist und die Markierungen gegenüber der restlichen Oberfläche des drehenden Teils einen unterschiedlichen US-Reflexionsgrad aufweisen. Schließlich kann der Sensor auch ein pneumatisch arbeitender sein, wobei die Markierungen gegenüber der restlichen Oberfläche des drehenden Teils eine unterschiedliche Form aufweisen.Furthermore, the design can be such that the sensor is working in the visible light range and the markings have a different brightness compared to the rest of the surface of the rotating part or that the sensor is working in the ultraviolet radiation (UV) range and the markings are opposite have a different UV reflectance on the remaining surface of the rotating part or that the sensor is working in the area of ultrasound (US) and the markings have a different US reflectance compared to the remaining surface of the rotating part. Finally, the sensor can also be a pneumatic one, the markings having a different shape from the rest of the surface of the rotating part.

Claims (2)

1. A device for monitoring rotating parts of machines and installations for the manufacture, treatment and processing of monofilaments, yarns, wires, tapes, webs and similar articles on the formation of laps or accumulations, with a sensor arranged opposite the surface of the rotating part, said sensor consisting of a transmitter and a receiver, characterised in that the surface of the rotating part is provided with markings having a reflection factor different from the remaining surface of the rotating part, whose passing at the sensor generates a frequency signal originating therefrom which is proportional to the rotational frequency of the rotating part and which, in the case of a shortfall below a preset reference frequency during a preset period, ensures the stopping of the rotating part or of the machine, or of the installation through circuit elements.
2. A device according to claim 1, characterised in that the markings consist of stripes disposed parallel to the axis of rotation of the rotating part, or of stripes disposed inclined with respect to the axis of rotation of the rotating part.
EP83110662A 1983-06-11 1983-10-26 Device for detecting wild thread windings on rotary members Expired EP0128240B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3321261A DE3321261C2 (en) 1983-06-11 1983-06-11 Device for monitoring rotating parts for resulting laps or runs
DE3321261 1983-06-11

Publications (2)

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EP0128240A1 EP0128240A1 (en) 1984-12-19
EP0128240B1 true EP0128240B1 (en) 1986-12-30

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EP83110662A Expired EP0128240B1 (en) 1983-06-11 1983-10-26 Device for detecting wild thread windings on rotary members

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US (1) US4609915A (en)
EP (1) EP0128240B1 (en)
JP (1) JPS602573A (en)
DE (2) DE3321261C2 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3623678A1 (en) * 1986-07-12 1988-01-28 Sucker & Franz Mueller Gmbh Device for detecting a thread lap
DE3635140A1 (en) * 1986-10-15 1988-04-21 Zinser Textilmaschinen Gmbh Optical scanning device for detecting a feed bobbin running empty in a spinning or twisting machine
DE3700752A1 (en) * 1987-01-13 1988-07-21 Schlafhorst & Co W Monitoring device for a running card sliver in drawing frames
DE3836330A1 (en) * 1988-10-25 1990-04-26 Zinser Textilmaschinen Gmbh METHOD AND DEVICE FOR MONITORING THE DETECTION OR RELEASING ALL SLEEVES OR REELING A SELF-ACTING REEL CHANGE DEVICE ON A RING SPIDER OR TWINING MACHINE
DE3900507A1 (en) * 1989-01-10 1990-07-12 Rieter Ag Maschf METHOD AND DEVICE FOR CARRYING OUT A BLOCK CHANGE IN A RING SPINNING MACHINE
DE3912737C2 (en) * 1989-04-19 2001-06-28 Truetzschler Gmbh & Co Kg Securing device for the openable parts of protective covers in textile machines, in particular spinning preparation machines
US5130559A (en) * 1989-08-26 1992-07-14 Trutzschler Gmbh & Co. Kg Method and apparatus for recognizing particle impurities in textile fiber
DE3928279C2 (en) * 1989-08-26 1998-05-14 Truetzschler Gmbh & Co Kg Method and device for detecting disruptive particles, in particular trash parts, nits, shell nits, nubs and the like. Like., in textile fiber material, for. B. cotton, man-made fibers and. the like
US5505067A (en) * 1994-07-06 1996-04-09 Waddington Electronics, Inc. Non-contact double-block speed controller
FI108635B (en) * 1997-06-30 2002-02-28 Metso Paper Inc A method for determining the quality of roll forming and controlling the roll forming
US5964391A (en) * 1997-10-24 1999-10-12 E. I. Du Pont De Nemours And Company Wrap detection device
US6247664B1 (en) 1999-06-25 2001-06-19 Siecor Operations, Llc Reel monitor devices and methods of using the same
DE19941723A1 (en) * 1999-09-02 2001-03-08 Schlafhorst & Co W Bobbin winder monitor has a light transmitter to send a light beam to a reflective surface at a bobbin drive or yarn guide roller to determine if yarn has wound itself around the roller
DE10150810B4 (en) * 2001-10-15 2011-01-13 Wifag Maschinenfabrik Ag Reel changer and method for removing a residual roll
DE10219179B4 (en) * 2002-04-29 2005-04-28 Koenig & Bauer Ag Device for preparing a roll of material
US6898409B2 (en) * 2003-03-05 2005-05-24 Kabushiki Kaisha Toshiba Fixing apparatus
DE102005009159B4 (en) 2005-02-25 2021-08-12 Trützschler GmbH & Co Kommanditgesellschaft Device on a spinning preparation machine for monitoring at least one sliver
DE102005009157B4 (en) * 2005-02-25 2019-05-09 Trützschler GmbH & Co Kommanditgesellschaft Device on a spinning preparation machine e.g. Carding, carding, route o. The like. For monitoring fiber material

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE885908C (en) * 1950-12-08 1953-08-10 Bobingen Ag Fuer Textil Faser Wrap protection for roller arrangements
DE1113731B (en) * 1959-07-08 1961-09-14 Licentia Gmbh Device for monitoring rotating spinning pots for thread breakage
CH391608A (en) * 1961-07-20 1965-04-30 Loepfe Ag Geb Thread monitors for textile machines
FR1391183A (en) * 1964-02-05 1965-03-05 Federale D Avions Fab Electronic neutral detector or motion detector
US3633835A (en) * 1970-07-10 1972-01-11 Great Lakes Carbon Corp Filament break detector utilizing photoelectric means for detecting speed of supply spool
US3714448A (en) * 1971-12-10 1973-01-30 United Aircraft Corp Light weight, low torque, inexpensive drum type optical digital shaft angle encoder
US3843883A (en) * 1973-03-08 1974-10-22 Usm Corp Thread use monitor
US3860185A (en) * 1973-12-28 1975-01-14 Nippon Selen Co Ltd Rotation detector in a fixed length yarn winding apparatus
DE2429055B1 (en) * 1974-06-18 1975-07-31 Barmag Barmer Maschinenfabrik Ag, 5600 Wuppertal Device for removing unwanted windings of capillary threads, threads or foil strips on a rotating work roll
DE2507199C2 (en) * 1975-02-20 1986-01-30 W. Schlafhorst & Co, 4050 Mönchengladbach Device for controlling the piecing process in rotor spinning machines
JPS51147638A (en) * 1975-06-10 1976-12-18 Nippon Selen Co Ltd Prevent apparatus for uncorrect winding of traverse yarn winder
GB1557167A (en) * 1975-06-30 1979-12-05 Ici Ltd Method and apparatus for detecting yarn on rods and severing the yarn
US4188545A (en) * 1975-06-30 1980-02-12 Imperial Chemical Industries Limited Yarn processing, method and apparatus
IT1052772B (en) * 1975-12-31 1981-07-20 Olivetti C E C S P A DEVICE TO DETECT THE ANGULAR POSITION OF A ROTATING BODY .. FOR EXAMPLE A WRITING HEAD OF AN OFFICE MACHINE
DE2605737B2 (en) * 1976-02-13 1979-08-30 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Working method for recognizing the incorrect operation of spinning units of open-end spinning machines
DE2748621A1 (en) * 1977-10-29 1979-05-03 Schlafhorst & Co W DEVICE FOR CONTACTLESS SCANING OF A ROTATING REEL
US4204115A (en) * 1978-03-30 1980-05-20 Conversational Systems, Inc. Removably attachable watt-hour meter monitor device
JPS5913812Y2 (en) * 1980-07-07 1984-04-23 第一製網株式会社 Underwater fertilizer supply base material
DE8034210U1 (en) * 1980-12-22 1981-05-27 Akzo Gmbh, 5600 Wuppertal Device for recognizing thread winders
DE3133494C2 (en) * 1981-08-25 1984-11-22 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Opto-electronic monitoring device

Also Published As

Publication number Publication date
JPH0236508B2 (en) 1990-08-17
JPS602573A (en) 1985-01-08
DE3368584D1 (en) 1987-02-05
US4609915A (en) 1986-09-02
DE3321261C2 (en) 1985-10-24
EP0128240A1 (en) 1984-12-19
DE3321261A1 (en) 1984-12-13

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