EP2132121B1 - Device for detecting the properties of a winding material - Google Patents

Device for detecting the properties of a winding material Download PDF

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Publication number
EP2132121B1
EP2132121B1 EP08700291A EP08700291A EP2132121B1 EP 2132121 B1 EP2132121 B1 EP 2132121B1 EP 08700291 A EP08700291 A EP 08700291A EP 08700291 A EP08700291 A EP 08700291A EP 2132121 B1 EP2132121 B1 EP 2132121B1
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EP
European Patent Office
Prior art keywords
width
marking
winding
winding material
bobbin
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EP08700291A
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German (de)
French (fr)
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EP2132121A1 (en
Inventor
Alexander Mair
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Lunatone Industrielle Elektronik GmbH
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Lunatone Industrielle Elektronik GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H55/00—Wound packages of filamentary material
    • B65H55/04—Wound packages of filamentary material characterised by method of winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/08—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle
    • B65H63/086—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle responsive to completion of unwinding of a package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/06—Supplying cores, receptacles, or packages to, or transporting from, winding or depositing stations
    • B65H67/063—Marking or identifying devices for packages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a device for detecting a marking on a spool during unwinding of the spool, wherein at least one of the transverse movement of the Spulguts during its unwinding detecting thread sensor is provided and the output signal of the yarn sensor is fed to an evaluation, which is adapted to a To provide marker signal.
  • a device of this kind is from the US 6,371,394 B1 known.
  • the winding material is wound in at least one layer with a laying angle, which deviates significantly from the nominal laying angle, wherein an evaluation unit provides a marking signal, if the product spills a significantly different from the nominal laying angle laying angle of the coil.
  • An object of the invention is to provide a robust, wear-free and cost-effective device with which the achievement of a certain winding position, such as the approaching end of the winding material during unwinding safely and reliably detected without certain properties of the Spulgutes such as color, conductivity etc. or there is a risk of contamination of sensors.
  • the solution should allow the recognition of certain properties of the Spulgutes, thus not only the filling state of the coil. The mark should further be recognized without much effort.
  • the applicant has in the prioritized, not pre-published AT 502 849 B1 already proposed a solution that provides a mark in the form of a significant change in the laying angle, wherein the detection of this mark is preferably carried out by measuring changes in rotational speed of the unwinding spool.
  • the US 3,062,481 discloses a coil containing a signal in the form of a plurality of initially wound on the core layers with small width; the overlying layers are wrapped across the full width.
  • the material of the signal layers has correspondingly reduced contact angle.
  • Other methods of producing markings on bobbins with small winding width windings are shown in U.S. Pat EP 0 876 985 A1 and EP 1225 259 shown.
  • the winding material is wound in at least one layer over a width which differs significantly from the Nennwickelbreite, and the evaluation unit is adapted to provide a marker signal, if the Spulgut during its unwinding sweeps a significantly different from the Nennwickellessness width of the coil.
  • the thread sensor is a sensor which optically detects the movement of the material to be spooled.
  • Spooled material may be band-shaped, thread-like or even a wire and it is from the spool in the direction indicated by an arrow and guided by a thread / tape Leadership, z. B. an eyelet 5, unwound.
  • a sensor 6 which in Fig. 1 and 2 is indicated.
  • This sensor 6 may be, for example, an optical sensor whose output signal is fed to an evaluation unit 7.
  • a marking of the coil is provided, which consists in that in at least one layer, the winding material is wound over a width B 1 , which deviates significantly from the nominal winding width B N.
  • a location of the dough is, in which this is not wound on one side to the edge and thus only over a width B 1 .
  • the laying angle of the Spulguts the mark M is equal to that outside the mark. If you compare Fig.1 With Fig. 3 so you can see that due to such a mark the Spulgut no longer passes the sensor 6 in its Hin and Hergang in the course of unwinding, so that it emits a corresponding signal or just no signal.
  • Fig. 5 is the example course of the thread passing frequency F, starting from a full bobbin to the point of the mark M shown.
  • the yarn pass frequency increases during unwinding, assuming the case of a constant take-off speed of Spulguts 3, since with a smaller bobbin diameter, the spool rotates accordingly faster.
  • the mark M when the mark M occurs, the yarn passing frequency F falls to zero and this mark M can indicate, as in the present case, that the end of the winding material is soon reached.
  • the Spulgut be rewound over the full width B N , ie, the mark is located inside the wound Spulguts.
  • the marking is generally produced by the coil that the winding material is not wound on one or both sides to the edge and thus only over a width B 1 , which deviates so much from the nominal width B N that the deviation significantly , namely "significant" over any tolerance-related deviations.
  • the Spulgut as in Fig. 3 shown, in the simplest case, only on one side not to be wound to the edge.
  • the winding material also over the nominal width B N to wrap out.
  • the most important and often unique marking will be a marking M at the end of the product to be winder, which leads to the generation of a corresponding signal S M , starting from which, for example, the shutdown of a machine for the purpose of replacing the now empty or almost empty Coil is done.
  • a composite mark may be provided which consists of several individual markings, for. B. in the sense of a binary word exists, and defines or displays, for example, the Spulgut whatsoever or a batch number of the supply reel. It is also conceivable to set a mark, for example in the middle of the Spulgutes, which indicates a parent computing arrangement that already half of the Spulgutes is consumed.

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Abstract

The invention relates to a bobbin (1) with a plurality of wound layers of strip- or thread-shaped winding material (3), at least one marking (M) being provided for displaying the properties of the winding material, characterized in that the winding material (3) is wound with the same laying angle as outside the marking and in at least one layer over a width that deviates substantially from the nominal winding width (BN) of the bobbin (1). In order to produce such a marking (M), winding material having the same laying angle as outside the marking is wound in at least one layer over a width that deviates substantially from the nominal winding width (BN) of the bobbin. A device is provided for detecting such a marking (M), comprising at least one thread sensor (6) for detecting the transverse movement of the winding material as it is unwound. The output signal of the thread sensor is supplied to an evaluation unit (7) which emits a marking signal (SM) in the event that, during unwinding, the winding material exceeds a width of the bobbin which deviates substantially from the nominal winding width.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Erkennen einer Markierung an einer Spule beim Abwickeln der Spule, bei welcher zumindest ein die Querbewegung des Spulguts bei dessen Abwickeln erfassender Fadensensor vorgesehen ist und das Ausgangssignal des Fadensensors einer Auswerteeinheit zugeführt ist, die dazu eingerichtet ist, ein Markierungssignal zu liefern.The invention relates to a device for detecting a marking on a spool during unwinding of the spool, wherein at least one of the transverse movement of the Spulguts during its unwinding detecting thread sensor is provided and the output signal of the yarn sensor is fed to an evaluation, which is adapted to a To provide marker signal.

Eine Vorrichtung dieser Art ist aus der US 6,371,394 B1 bekannt geworden. Bei dieser Vorrichtung ist das Spulgut in zumindest einer Lage mit einem Verlegewinkel gewickelt, welcher von dem Nennverlegewinkel signifikant abweicht, wobei eine Auswerteeinheit ein Markierungssignal liefert, falls das Spulgut einen von dem Nennverlegewinkel signifikant abweichenden Verlegewinkel der Spule überstreicht.A device of this kind is from the US 6,371,394 B1 known. In this device, the winding material is wound in at least one layer with a laying angle, which deviates significantly from the nominal laying angle, wherein an evaluation unit provides a marking signal, if the product spills a significantly different from the nominal laying angle laying angle of the coil.

Bei der industriellen Verarbeitung von Fäden, Bändchen, Drähten etc. werden diese sehr oft von einer Vorratsspule, im folgenden kurz "Spule" genannt, mit vorgegebener Liniengeschwindigkeit abgespult. Als Beispiel sei die Verarbeitung auf einem Webstuhl erwähnt, bei dem die im Allgemeinen konstante Verarbeitungsgeschwindigkeit des Webgutes die Geschwindigkeit des Abspulens von der Spule definiert.In the industrial processing of threads, tapes, wires, etc., these are very often unwound from a supply reel, hereinafter referred to as "coil", with predetermined line speed. By way of example, mention may be made of processing on a loom where the generally constant processing speed of the web defines the speed of unwinding from the reel.

Für einen möglichst effizienten Verarbeitungsprozess muss sichergestellt sein, dass das Erreichen des Fadenendes auf der Spule rechtzeitig erkannt wird, sodass, beispielsweise nach Stoppen des Webprozesses, der Faden einer neuen Spule "nahtlos" angeknüpft werden kann und ein "endloser" Betrieb gewährleistet ist Dabei ist es besonders wichtig, das Herannahen des Fadenendes frühzeitig zu erkennen, weil das kontrollierte Herunterfahren des Verarbeitungsprozesses meist eine gewisse Zeit erfordert, damit ein definiertes Stillsetzen der entsprechenden Maschinen gegeben ist. Nach einem solchen Stillsetzen bzw. Abbremsen soll auch noch eine geringe Reserve an Spulgut zur Verfügung stehen, um den Faden einer neuen, nunmehr vollen Vorratsspule anknüpfen zu können.To ensure the most efficient processing possible, it must be ensured that the thread end on the bobbin is detected in time, so that, for example, after stopping the weaving process, the thread of a new bobbin can be tied "seamlessly" and "endless" operation is ensured It is particularly important to detect the approach of the thread end early, because the controlled shutdown of the processing process usually requires a certain amount of time, so that a defined shutdown of the corresponding machines is given. After such a shutdown or deceleration even a small reserve of Spulgut should be available to tie the thread of a new, now full supply spool can.

Nach einem Stand der Technik erfolgt das Erkennen einer bestimmten Position beim Abspulvorgang, wie etwa das bevorstehende Fadenende, beispielsweise unter Benutzung eines mechanischen Abtasthebels, der bei Erreichen einer vorgegebenen Position einen Mikroschalter betätigt. Bei dieser Lösung ist der mechanische Aufwand für den Abtastbügel und die erforderliche äußerst präzise Justierung unter Berücksichtigung einer Bändchendicke bis herunter zu 0,01 mm nachteilig.According to a prior art, the detection of a certain position in the unwinding, such as the upcoming thread end, for example, using a mechanical scanning lever, which actuates a microswitch when reaching a predetermined position. In this solution, the mechanical complexity of the Abtastbügel and the required extremely precise adjustment taking into account a tape thickness down to 0.01 mm disadvantageous.

Alternativ zu einer solchen rein mechanischen Abtastung sind auch optische Sensoren bekannt geworden, welche das nahende Fadenende aus dem Farbunterschied oder einem verschiedenen Reflektionsverhalten zwischen Faden und Spulenhülse detektieren. Ein solches Verfahren versagt allerdings dann, wenn Faden und Hülse gleiche oder ähnliche Farbe aufweisen oder wenn transparente Fädchen oder Bändchen gespult werden. Nachteilig an einem solchen optischen Verfahren ist auch die Verschmutzungsgefahr des optischen Sensors, die bei Textilverarbeitungsmaschinen durch parasitäre, von Spulgut abgesplitterte Fasern bzw. Materialpartikel häufig gegeben ist.As an alternative to such a purely mechanical scanning and optical sensors have become known, which detect the approaching end of the thread from the color difference or a different reflection behavior between the thread and the bobbin tube. However, such a method fails when thread and sleeve have the same or similar color or when transparent threads or ribbons are spooled. A disadvantage of such an optical method is also the risk of contamination of the optical sensor, which is often given in textile processing machines by parasitic, chipped by Spulgut fibers or material particles.

Eine Aufgabe der Erfindung liegt darin, eine robuste, verschleißfreie und kostengünstige Vorrichtung zu schaffen, mit welcher das Erreichen einer bestimmten Spulposition, wie das herannahende Ende des Spulgutes beim Abwickelvorgang sicher und zuverlässig detektiert werden kann, ohne dass bestimmte Eigenschaften des Spulgutes wie Farbe, Leitfähigkeit etc. vorausgesetzt werden oder die Gefahr der Verschmutzung von Sensoren besteht. Ganz allgemein soll die Lösung die Erkennung bestimmter Eigenschaften des Spulgutes, somit nicht nur den Füllzustand der Spule ermöglichen. Die Markierung soll weiters ohne großen Aufwand erkannt werden können.An object of the invention is to provide a robust, wear-free and cost-effective device with which the achievement of a certain winding position, such as the approaching end of the winding material during unwinding safely and reliably detected without certain properties of the Spulgutes such as color, conductivity etc. or there is a risk of contamination of sensors. In general, the solution should allow the recognition of certain properties of the Spulgutes, thus not only the filling state of the coil. The mark should further be recognized without much effort.

Die Anmelderin hat in der prioritätsälteren, nicht vorveröffentlichten AT 502 849 B1 bereits eine Lösung vorgeschlagen, die eine Markierung in Form einer signifikanten Änderung des Verlegewinkels vorsieht, wobei das Erkennen dieser Markierung vorzugsweise durch eine Messung von Drehzahländerungen der abzuwickelnden Spule erfolgt.The applicant has in the prioritized, not pre-published AT 502 849 B1 already proposed a solution that provides a mark in the form of a significant change in the laying angle, wherein the detection of this mark is preferably carried out by measuring changes in rotational speed of the unwinding spool.

Die US 3,062,481 offenbart eine Spule, die ein Signal in Form von mehreren zu Anfang auf den Kern gewickelten Lagen mit geringer Breite enthält; die darüber liegenden Lagen sind über die volle Breite gewickelt. Das Material der Signallagen weist entsprechend verringerten Legewinkel auf. Andere Verfahren zum Erzeugen von Markierungen auf Garnspulen mit Wicklungen geringer Wickelbreite sind in EP 0 876 985 A1 und EP 1225 259 dargestellt.The US 3,062,481 discloses a coil containing a signal in the form of a plurality of initially wound on the core layers with small width; the overlying layers are wrapped across the full width. The material of the signal layers has correspondingly reduced contact angle. Other methods of producing markings on bobbins with small winding width windings are shown in U.S. Pat EP 0 876 985 A1 and EP 1225 259 shown.

Die oben dargelegte Aufgabe wird mit einer Vorrichtung der eingangs genannten Art gelöst, bei welcher erfindungsgemäß das Spulgut in zumindest einer Lage über eine Breite gewickelt ist, welche von der Nennwickelbreite signifikant abweicht, und die Auswerteeinheit dazu eingerichtet ist, ein Markierungssignal liefern, falls das Spulgut bei seinem Abwickeln eine von der Nennwickelbreite signifikant abweichende Breite der Spule überstreicht.The above object is achieved with a device of the type mentioned, in which according to the invention the winding material is wound in at least one layer over a width which differs significantly from the Nennwickelbreite, and the evaluation unit is adapted to provide a marker signal, if the Spulgut during its unwinding sweeps a significantly different from the Nennwickelbreite width of the coil.

Unter einem signifikanten Abweichen bzw. einer signifikanten Änderung soll in Zusammenhang mit der Erfindung eine solche Abweichung oder Änderung verstanden werden, die von den üblichen, z. B. im Toleranzbereich der Wickelbreite auftretenden Änderungen eindeutig unterscheidbar ist.A significant deviation or a significant change is to be understood in connection with the invention as meaning a deviation or change. from the usual, z. B. occurring in the tolerance range of the winding width changes is clearly distinguishable.

Mit Hilfe einer solchen Vorrichtung kann auf einfache Weise jene Information ausgelesen werden, die einer Spule durch Änderungen der Wickelbreite aufgeprägt wurde. Bei der Erfindung ist auch auf eine überaus einfache Weise ein Markieren beim Aufwickeln der Spule möglich, ohne dass es zusätzlicher Hilfsmittel, wie Farben etc. bedarf.With the help of such a device that information can be read out in a simple manner, which was impressed on a coil by changing the winding width. In the invention, a marking on winding the coil is also possible in a very simple manner, without the need for additional aids, such as colors, etc.

Eine zweckmäßige Weiterbildung der Vorrichtung sieht vor, dass der Fadensensor ein die Bewegung des Spulguts optisch erfassender Sensor ist.An expedient development of the device provides that the thread sensor is a sensor which optically detects the movement of the material to be spooled.

Die Erfindung samt weiteren Vorteilen ist im folgenden anhand beispielsweiser Ausführungsformen erläutert, die in der Zeichnung veranschaulicht sind. In dieser zeigen

  • Fig. 1 in schematischer Darstellung eine Spule, von welcher Spulgut abgewickelt wird, in einer Ansicht normal zur Spulenachse,
  • Fig. 2 die Spule nach Fig. 1 ein einer Seitenansicht samt einer Vorrichtung zum Erkennen einer Markierung,
  • Fig. 3 in einer Ansicht wie Fig. 1 eine bei dem Abwickeln auftretende Markierung,
  • Fig. 4 in einem Diagramm ein am Ausgang eines Fadensensors auftretendes Signalmuster,
  • Fig. 5 in einem Diagramm eine beispielsweise Änderung der Pulsfolgefrequenz des Signalmusters beim Abwickeln der Spule und
  • Fig. 6 in einem Diagramm das Auftreten eines Markierungssignals am Ausgang der Auswerteeinheit.
The invention together with further advantages is explained below with reference to exemplary embodiments, which are illustrated in the drawing. In this show
  • Fig. 1 in a schematic representation of a spool, from which is unwound Spulgut, in a view normal to the coil axis,
  • Fig. 2 the coil after Fig. 1 a side view together with a device for recognizing a marking,
  • Fig. 3 in a view like Fig. 1 a marking occurring during unwinding,
  • Fig. 4 in a diagram a signal pattern occurring at the output of a yarn sensor,
  • Fig. 5 in a diagram, for example, a change in the pulse repetition frequency of the signal pattern when unwinding the coil and
  • Fig. 6 in a diagram, the occurrence of a marker signal at the output of the evaluation unit.

Die in Fig. 1 gezeigte Vorratsspule 1 mit einer Spulenhülse 2 und darauf aufgewickeltem Spulgut 3 sitzt hier auf einem Dorn 4. Das Spulgut kann bandförmig, fadenförmig oder auch ein Draht sein und es wird von der Spule in der durch einen Pfeil angedeuteten Richtung und geführt durch eine Faden/Band-Führung, z. B. eine Öse 5, abgewickelte. Beim Abwickeln läuft das Spulgut 3 über die Nennbreite BN der Spule ständig hin und her, was gleichfalls durch einen Pfeil angedeutet ist. Die Bewegung des Spulgutes beim Abwickeln wird durch einen Sensor 6 überwacht, der in Fig. 1 und 2 angedeutet ist. Dieser Sensor 6 kann beispielsweise ein optischer Sensor sein, dessen Ausgangssignal einer Auswerteeinheit 7 zugeführt wird.In the Fig. 1 Spooled material may be band-shaped, thread-like or even a wire and it is from the spool in the direction indicated by an arrow and guided by a thread / tape Leadership, z. B. an eyelet 5, unwound. When unwinding the Spulgut 3 runs on the nominal width B N of the coil constantly back and forth, which is also indicated by an arrow. The movement of the Spulgutes during unwinding is monitored by a sensor 6, which in Fig. 1 and 2 is indicated. This sensor 6 may be, for example, an optical sensor whose output signal is fed to an evaluation unit 7.

Wie bereits eingangs erwähnt, ist es in vielen Fällen wichtig, beim Abwickeln einer Spule rechtzeitig zu erkennen, dass das Spulgut zu Ende geht, damit eine neue Spule vorbereitet und rechtzeitig an ihren Platz gebracht werden kann. Die Erfindung sieht nun vor, dass einen Markierung der Spule vorgesehen ist, die darin besteht, dass in zumindest einer Lage das Spulgut über eine Breite B1 gewickelt ist, die von der Nennwickelbreite BN signifikant abweicht. In dieser Beziehung wird auf Fig. 3 verwiesen, wo eine Lage des Spulgutes gezeigt ist, in welcher dieses an einer Seite nicht bis an den Rand und somit lediglich über eine Breite B1 gewickelt ist. Hierbei ist der Verlegewinkel des Spulguts der Markierung M gleich jenem außerhalb der Markierung. Vergleicht man Fig.1 mit Fig. 3 so erkennt man, dass auf Grund einer solchen Markierung das Spulgut bei seinem Hin und Hergang im Verlauf des Abwickelns nicht mehr den Sensor 6 passiert, sodass dieser ein entsprechendes Signal bzw. eben kein Signal abgibt.As already mentioned, it is important in many cases, when unwinding a coil to recognize in time that the Spulgut is over, so that a new coil can be prepared and placed in time in its place. The invention now provides that a marking of the coil is provided, which consists in that in at least one layer, the winding material is wound over a width B 1 , which deviates significantly from the nominal winding width B N. In this relationship will be on Fig. 3 referenced where shown a location of the dough is, in which this is not wound on one side to the edge and thus only over a width B 1 . Here, the laying angle of the Spulguts the mark M is equal to that outside the mark. If you compare Fig.1 With Fig. 3 so you can see that due to such a mark the Spulgut no longer passes the sensor 6 in its Hin and Hergang in the course of unwinding, so that it emits a corresponding signal or just no signal.

In Fig. 4 ist beispielsweise gezeigt, dass jedes Vorbeilaufen des Fadens an dem Sensor 6 einen Impuls erzeugt, sodass während des normalen Abwickelns ein Puls mit einer Periode TP entsprechend einer Fadendurchlauffrequenz F = 1/TP entsteht. Sobald die gesetzte Markierung, die im Folgenden mit M bezeichnet wird, auftritt, fällt der Puls zumindest für eine kurze Zeitdauer wegen der Markierung M aus. In Fig. 5 ist der beispielsweise Verlauf der Fadendurchlauffrequenz F, beginnend von einer vollen Spule bis zur Stelle der Markierung M, gezeigt. Die Fadendurchlauffrequenz steigt während des Abwickelns an, wenn man den Fall einer konstanten Abzugsgeschwindigkeit des Spulguts 3 annimmt, da sich mit kleinerem Spulendurchmesser die Spule entsprechend rascher dreht. Wenn die Markierung M auftritt, fällt natürlich die Fadendurchlauffrequenz F auf Null und diese Markierung M kann wie im vorliegenden Fall anzeigen, dass das Ende des Spulgutes bald erreicht ist. Wie in Fig. 5 angedeutet, kann natürlich in der nächsten Lage das Spulgut wieder über die volle Breite BN gewickelt sein, d. h., die Markierung befindet sich im Inneren des gewickelten Spulguts.In Fig. 4 For example, it is shown that each passing of the thread on the sensor 6 generates a pulse, so that during normal unwinding, a pulse having a period T P corresponding to a thread passing frequency F = 1 / T P is formed. As soon as the set mark, which is denoted below by M, occurs, the pulse drops out for at least a short period of time because of the mark M. In Fig. 5 is the example course of the thread passing frequency F, starting from a full bobbin to the point of the mark M shown. The yarn pass frequency increases during unwinding, assuming the case of a constant take-off speed of Spulguts 3, since with a smaller bobbin diameter, the spool rotates accordingly faster. Of course, when the mark M occurs, the yarn passing frequency F falls to zero and this mark M can indicate, as in the present case, that the end of the winding material is soon reached. As in Fig. 5 indicated, of course, in the next layer, the Spulgut be rewound over the full width B N , ie, the mark is located inside the wound Spulguts.

Es sollte für den Fachmann klar sein, dass eine Vielzahl von Sensoren zur Erfassung der Bewegung des Spulgutes in Betracht kommen, wie optische Reflektions- oder Durchlichtsensoren, kapazitive oder Ultraschallsensoren und letztlich auch mechanische Tastsensoren. Dem Fachmann steht in Abhängigkeit von der Art des Spulguts jedenfalls eine Vielzahl von Sensoren zur Verfügung und dementsprechend wird die Auswerteeinheit 7 aufgebaut sein, damit sie bei Auftreten der Markierung ein korrektes Markierungssignal sM ausgeben kann. Dieses Signal ist beispielsweise in Fig. 5 als während der Markierung M auftretender Rechteckimpuls dargestellt.It should be clear to those skilled in the art that a variety of sensors for detecting the movement of the Spulgutes come into consideration, such as optical reflection or transmitted light sensors, capacitive or ultrasonic sensors and ultimately also mechanical Tastsensoren. In any case, a large number of sensors will be available to the person skilled in the art, depending on the type of material to be spooled, and accordingly the evaluation unit 7 will be constructed so that it can output a correct marking signal s M when the marking appears. This signal is for example in Fig. 5 as shown during the mark M occurring rectangular pulse.

Die Markierung wird im allgemeinen dadurch an der Spule erzeugt, dass das Spulgut an einer oder an beiden Seiten nicht bis an den Rand und somit nur über ein Breite B1 gewickelt wird, die von der Nennbreite BN so stark abweicht, dass die Abweichung deutlich, nämlich "signifikant" über allfälligen toleranzbedingten Abweichungen liegt. Dabei kann das Spulgut, wie in Fig. 3 gezeigt, im einfachsten Fall lediglich an einer Seite nicht bis an den Rand gewickelt werden. Alternativ ist es auch möglich, sofern genügend Platz an zumindest einem Ende der Spule vorhanden ist, das Spulgut auch über die Nennbreite BN hinaus zu wickeln.The marking is generally produced by the coil that the winding material is not wound on one or both sides to the edge and thus only over a width B 1 , which deviates so much from the nominal width B N that the deviation significantly , namely "significant" over any tolerance-related deviations. Here, the Spulgut, as in Fig. 3 shown, in the simplest case, only on one side not to be wound to the edge. Alternatively, it is also possible, if enough space at least one end of the bobbin is present, the winding material also over the nominal width B N to wrap out.

In dem meisten Fällen wird die wichtigste und oft einzige Markierung eine Markierung M am Ende des Spulgutes sein, welche zur Erzeugung eines entsprechenden Signals SM führt, von dem ausgehend zum Beispiel das Herunterfahren einer Maschine zum Zwecke des Auswechselns der nunmehr leeren bzw. fast leeren Spule erfolgt. Andererseits kann auch in der ersten oder einer der ersten Lagen des Spulgutes eine zusammengesetzte Markierung vorgesehen sein, die aus mehreren einzelnen Markierungen, z. B. im Sinne eines binären Wortes, besteht und die beispielsweise die Spulgutqualität oder eine Chargennummer der Vorratsspule definiert bzw. anzeigt. Auch ist es denkbar, eine Markierung beispielsweise in der Mitte des Spulgutes zu setzen, welche einer übergeordneten Rechenanordnung anzeigt, dass bereits die Hälfte des Spulgutes verbraucht ist.In most cases, the most important and often unique marking will be a marking M at the end of the product to be winder, which leads to the generation of a corresponding signal S M , starting from which, for example, the shutdown of a machine for the purpose of replacing the now empty or almost empty Coil is done. On the other hand, in the first or one of the first layers of Spulgutes a composite mark may be provided which consists of several individual markings, for. B. in the sense of a binary word exists, and defines or displays, for example, the Spulgutqualität or a batch number of the supply reel. It is also conceivable to set a mark, for example in the middle of the Spulgutes, which indicates a parent computing arrangement that already half of the Spulgutes is consumed.

Der Einsatz der Erfindung mit einer Markierung des Spulgutes bringt in vielen Fällen eine Vereinfachung und eine Verkürzung des Arbeitsablaufes, z. B. bei Webmaschen, bei welchen eine große Zahl von Spulen zum Einsatz kommt und ein praktisch unterbrechungsfreier Betrieb ermöglicht werden soll.The use of the invention with a marking of the Spulgutes brings in many cases a simplification and a shortening of the workflow, eg. As webmesh, in which a large number of coils is used and a virtually uninterrupted operation should be possible.

Claims (2)

  1. An apparatus for recognizing a marking (M) on a bobbin (1) during unwinding of the bobbin, in which at least one thread sensor (6) is provided for recognizing the transverse movement of the winding material during its unwinding and the output signal of the thread sensor is supplied to an evaluation unit (7) which is set up to supply a marking signal (SM), characterized in that the winding material (2) is wound in at least one layer over a width (B1) which significantly deviates from the nominal winding width (BN), and the evaluation unit (7) is set up to supply a marking signal (SM) if the winding material exceeds a width of the bobbin during unwinding which significantly deviates from the nominal winding width.
  2. An apparatus according to claim 1, characterized in that the thread sensor (6) is a sensor which optically detects the movement of the winding material (3).
EP08700291A 2007-01-29 2008-01-28 Device for detecting the properties of a winding material Active EP2132121B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0013907A AT504844B1 (en) 2007-01-29 2007-01-29 METHOD FOR WRAPPING A SPOOL, SPOOL AND DEVICE FOR DETECTING PROPERTIES OF THE SPOOL
PCT/AT2008/000025 WO2008092179A1 (en) 2007-01-29 2008-01-28 Method for winding a bobbin, bobbin and device for detecting the properties of the winding material

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EP2132121A1 EP2132121A1 (en) 2009-12-16
EP2132121B1 true EP2132121B1 (en) 2012-02-29

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AT (2) AT504844B1 (en)
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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2226135A (en) * 1939-01-19 1940-12-24 Us Rubber Co Cord stretching and winding machine

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Publication number Priority date Publication date Assignee Title
US3062481A (en) 1958-11-03 1962-11-06 Owens Corning Fiberglass Corp Strand package and method for forming same
DE4009370A1 (en) 1990-03-23 1991-09-26 Gregor Gebald Bobbin cross winding allowing longer bobbins to be wound - in which reciprocating motion cross-wise has sections with only one stroke smaller than bobbin length
DE4415677C2 (en) * 1993-05-12 2001-09-13 Barmag Barmer Maschf Process for quality marking of a thread bobbin and winding device
IT1292225B1 (en) 1997-05-07 1999-01-29 Giudici Davide & Figli Snc Dei METHOD FOR THE IDENTIFICATION OF THREAD SPOOLS, IN PARTICULAR FOR THE IDENTIFICATION OF THE QUALITY OF THE TEXTILE THREAD WOUND ON THEM
US6371394B1 (en) * 1998-12-23 2002-04-16 Pirelli Cavi E Sistemi S.P.A. Method for winding a fibre element having different longitudinal portions
FR2796631B1 (en) 1999-07-22 2001-08-17 Vetrotex France Sa PROCESS FOR THE MANUFACTURE OF TRONCONIC WIRE COILS
JP3509756B2 (en) 2001-01-17 2004-03-22 村田機械株式会社 Yarn processing equipment
DE10342384A1 (en) 2003-09-13 2005-05-25 Saurer Gmbh & Co. Kg Cheese and process for its preparation
AT502849B1 (en) * 2005-11-30 2010-09-15 Lunatone Ind Elektronik Gmbh PULLEY AMOUNT AND RESERVE DETECTOR

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Publication number Priority date Publication date Assignee Title
US2226135A (en) * 1939-01-19 1940-12-24 Us Rubber Co Cord stretching and winding machine

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AT504844B1 (en) 2010-10-15
EP2132121A1 (en) 2009-12-16
AT504844A1 (en) 2008-08-15
WO2008092179A1 (en) 2008-08-07
ATE547369T1 (en) 2012-03-15

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