EP1110896B1 - Method for winding cross-wound bobbins - Google Patents

Method for winding cross-wound bobbins Download PDF

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Publication number
EP1110896B1
EP1110896B1 EP00122348A EP00122348A EP1110896B1 EP 1110896 B1 EP1110896 B1 EP 1110896B1 EP 00122348 A EP00122348 A EP 00122348A EP 00122348 A EP00122348 A EP 00122348A EP 1110896 B1 EP1110896 B1 EP 1110896B1
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EP
European Patent Office
Prior art keywords
diameter
cheese
winding
calculated
winding drum
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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.)
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EP00122348A
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German (de)
French (fr)
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EP1110896A3 (en
EP1110896A2 (en
Inventor
Franz-Josef Ingenieur Flamm
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Oerlikon Textile GmbH and Co KG
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Saurer GmbH and Co KG
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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
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/38—Arrangements for preventing ribbon winding ; Arrangements for preventing irregular edge forming, e.g. edge raising or yarn falling from the edge
    • 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
    • B65H63/082—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 a predetermined size or diameter of the 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
    • 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 method for winding cheeses in wild winding on a winder whose winding units each one driving a cheese by means of friction Winding drum included and to avoid image windings in possible image zones slip between cheeses and winding drum produce, wherein the diameter of the cheese from the known diameter of the winding drum and the measured speeds of the winding drum and the cheese is calculated.
  • DE 196 25 510 A discloses a method and a Device that determines the slip in image zones to serve in the production of coils without that additional transducers must be used.
  • the de 196 25 510 Al is based on a special drive, at which at regular intervals slip phases and Leaving phases alternate during the entire coil travel. In this drive, the drive motor is engaged at intervals switched off, as can be seen in Figs. 3 and 4. During the switch-on interval, the coil slows down accelerated as the winding roller, since slippage between coil and winding roller is present.
  • DE 196 25 510 A describes that in a phasing out the course of the Increase of the coil radius is calculated.
  • the diameter calculation for example used to change the time of the cross-wound bobbin against a determine empty sleeve diameter-dependent.
  • the change of the cheese against an empty sleeve depending on the wound thread length is the wound thread length determined by counting the revolutions of the winding drum, the with the promoted during a turn, known thread length be multiplied.
  • Creating slip in possible Picture zones is turned on and off by a Winding drum driving motor causes. Within one given bandwidth of the speed is the speed of Winding drum by switching on the engine relatively quickly increased from the lower limit to the upper limit, after which then the engine is switched off again until the lower limit is reached. During acceleration of the engine arises Slip.
  • the cross-wound bobbin is mounted in a pivoting creel and pressed with a contact pressure to the winding drum.
  • DE 198 29 597 A is disclosed for producing a Slippage when driving through image zones to lower the bearing pressure, alone or in conjunction with the On and off the engine can be performed.
  • the change of the cheese depending on a nominal thread length should, so that's relatively easy.
  • the slip plays here not crucial and may possibly also be taken into account via correction factors that the result the speed sensor of the winding drum, for example a Incremental counter to clean up the amount of slippage.
  • the invention has for its object to provide a method of to improve the type mentioned above so that a possible accurate diameter detection is also possible in image zones and that it is also possible with a given diameter the cheeses off the winding unit.
  • the course of the increase in the diameter of the cheese is calculated over time and that while driving through an image zone the time is detected.
  • About the recorded time span can thus be relatively accurate to that at this time be closed present diameter of the cheese. It is then possible to specify a period of time during which the Nominal diameter is expected and after this period to turn off the winding unit.
  • the course of the increase in the diameter of the cheese from the ratio of wound thread length and calculated diameter and that during the Passing through an image zone detects the wound thread length becomes.
  • the wound up Thread length by detecting the revolutions of the winding drum determined. It is assumed that the per revolution the winding drum promoted yarn length or thread length is known. If this solution while driving through reaches an image zone of the target diameter of the cheese is, this results from the before reaching the image zone calculated diameter and a predictable number of turns of the winding drum.
  • An image zone finished cheese serves the from the expected diameter of the increase. In this way, the assignment may be inaccurate or error prone Diameter information in such cheeses be avoided. This is also advantageous if the Changing the cross-wound bobbin depending on a nominal thread length is carried out.
  • the output of the diameter can be expressed as an expression respectively.
  • Other output options exist in the Display on a display or via a monitor.
  • the drawing shows a largely schematic representation the upper part of a winding unit with the associated Control.
  • a winder has several largely independent of each other working winding units, to each one Cross-wound bobbin 10 is wound.
  • the cheese 10 is by means of a winding drum 13 by means Friction driven.
  • the cross-wound bobbin 10 is with its bobbin tube 14 between Spuleellern 15, 16 of the arms of a creel held around the axis of the winding drum 13 is mounted pivotably parallel axis.
  • the winding drum 13 is provided with a so-called Kehrgewinderille provided by means of the incoming thread 11 in the transverse direction laid in so-called wild winding.
  • the thread 11 passes through a electronic thread cleaner 17, a separator 18 and a thread guide 19.
  • the thread 11 checked for errors (thick spots and thin spots), which at Exceeding predetermined tolerances cleaned out of the thread become.
  • the determined by the thread cleaner 17 Values of the thread 11 are sent to a winding station computer 20 transmitted these values with predetermined values, the For example, in the winding station 20 of a central Machine computer to be entered compares. Inadmissible Deviations, the separator 18 is actuated.
  • the thread piece with the improper thread error is known Way out of the thread, after which - controlled from the winding station 20 - again a thread connection made and the winding process is resumed.
  • the winding drum 13 is driven by means of an electric motor 21, its speed by means of a frequency converter 22nd is given.
  • the winding drum 13 is a speed sensor assigned, which connected to the winding station computer 20 is.
  • the speed sensor consists for example of a pole wheel 23 and a Hall sensor 24. Furthermore, the speed the cross-wound bobbin 10 detected and in the winding station computer 20 entered.
  • a magnet wheel is on the reel plate 16 25 attached, which is associated with a Hall sensor 26.
  • the winding station 20 as with the input 27th is indicated, common working conditions for all winding units predetermined by a machine computer. These are for example, the winding speed, i. the speed of the Winding drum 13, the tolerances for the thread cleaner 17 and possibly also the values to which a not shown Voltage regulating device is to be set, which is the Winding tension regulates. If the contact force between cheese 10 and winding drum 13 is controlled, so will For this purpose, the default setting specified by the machine computer. The winding station computer 20 then varies the operation of the relevant winding unit depending on the respective existing working conditions, for example from the unwinding state of the bobbin and the winding state or the size of the cheese 10 or the like.
  • he determines a so-called picture disorder, by which Image windings avoided in previously known possible image zones become.
  • the winding station computer the motor 21 constantly between tolerance limits on and off, whereby when reaching the lower tolerance limit the engine 21 is turned on and accelerated so much is that a slip between winding drum 13 and Cheese 10 is formed, after which he reaches the top Tolerance limit is turned off, so that the speed or Angular velocity of the winding drum 13 together with the then without slip driven cross-wound bobbin 10 to the lower tolerance limit drops.
  • the system pressure of the cheese 10 on the winding drum 13 to change what the creel with a loading device, not shown can be provided, which is controlled by the winding station computer 20 is and the bearing force between cheese 10 and winding drum 13 determines.
  • the winding station 20 Based on the data of the speed sensor 23, 24 of the winding drum 13 and the speed sensor 25, 26 of the cheese 10 can the winding station 20 using the known Diameter of the winding drum 13 the current diameter the cross-wound bobbin 10 at any time. That's the way it is possible to detect the reaching of a given diameter and upon reaching this diameter of the cheese 10 perform a bobbin change, including, for example the winding unit is switched off, i. the drive motor 21 is stopped. This makes it possible at all winding units a winder cheeses 10 of the same diameter to produce.
  • winding station calculator calculates 20 in a slip-free zone, how much yarn length is needed is to the diameter of the cheese to a predetermined To increase the unit of measurement, for example by one millimeter.
  • the Output of the diameter is expressed as an expression by means of the printer 28 performed. Alternatively or additionally, the Output in a manner not shown as an indication on one Display or by means of a monitor.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Winding Filamentary Materials (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Dairy Products (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

The diameter of the bobbin (10) is normally calculated (20) from the speed and diameter of the friction drive drum (13) but during pattern breaking the drum speed is altered momentarily so that slip occurs. To obtain the actual momentary bobbin diameter, the speed value prior to pattern breaking is used to calculate the expected increase in diameter during this period, which is then added on.

Description

Die Erfindung betrifft ein Verfahren zum Wickeln von Kreuzspulen in wilder Wicklung auf einer Spulmaschine, deren Spulstellen jeweils eine eine Kreuzspule mittels Friktion antreibende Wickeltrommel enthalten und die zur Vermeidung von Bildwicklungen in möglichen Bildzonen Schlupf zwischen Kreuzspule und Wickeltrommel erzeugen, wobei der Durchmesser der Kreuzspule aus dem bekannten Durchmesser der Wickeltrommel und den gemessenen Drehzahlen der Wickeltrommel und der Kreuzspule berechnet wird.The invention relates to a method for winding cheeses in wild winding on a winder whose winding units each one driving a cheese by means of friction Winding drum included and to avoid image windings in possible image zones slip between cheeses and winding drum produce, wherein the diameter of the cheese from the known diameter of the winding drum and the measured speeds of the winding drum and the cheese is calculated.

Die DE 196 25 510 A offenbart ein Verfahren und eine Vorrichtung, die der Bestimmung des Schlupfes in Bildzonen bei der Herstellung von Spulen dienen sollen, ohne dass zusätzliche Messwertaufnehmer verwendet werden müssen. Die DE 196 25 510 Al geht von einem speziellen Antrieb aus, bei welchem in regelmäßigen Intervallen Schlupfphasen und Auslaufphasen während der gesamten Spulenreise abwechseln. Bei diesem Antrieb wird der Antriebsmotor in Intervallen einund ausgeschaltet, wie das in Fig. 3 und 4 zu sehen ist. Während des Einschaltintervalles wird die Spule langsamer beschleunigt als die Wickelwalze, da Schlupf zwischen Spule und Wickelwalze vorhanden ist. Die DE 196 25 510 A beschreibt, dass in einer Auslaufphase der Verlauf der Zunahme des Spulenradius errechnet wird. D. h., es wird nicht der Verlauf des Spulenradius an sich, sondern der Verlauf des Zuwachses (pro Schritt bzw. Zeitabstand) errechnet. Diese Berechnung erfolgt für sehr kurze Intervalle (Perioden) von beispielsweise 0,1 Sekunden. Anschließend wird der Verlauf der Zunahme des Spulenradius in einer nachfolgenden Beschleunigungsphase parallel zur Berechnung des durch den Schlupf verfälschten Verlaufs der Zunahme des Spulenradius in der Beschleunigungsphase berechnet. Aus dem Vergleich des Verlaufs der Zunahme des Spulenradius in der unmittelbar vorausgegangenen Auslaufphase mit dem durch den Schlupf verfälschten Verlauf der Zunahme des Spulenradius in der darauf folgenden Schlupfphase wird die jeweilige Größe des Schupfes pro Zeitabstand (Periode) festgestellt.DE 196 25 510 A discloses a method and a Device that determines the slip in image zones to serve in the production of coils without that additional transducers must be used. The de 196 25 510 Al is based on a special drive, at which at regular intervals slip phases and Leaving phases alternate during the entire coil travel. In this drive, the drive motor is engaged at intervals switched off, as can be seen in Figs. 3 and 4. During the switch-on interval, the coil slows down accelerated as the winding roller, since slippage between coil and winding roller is present. DE 196 25 510 A describes that in a phasing out the course of the Increase of the coil radius is calculated. That is, it will not the course of the coil radius per se, but the course of the Increment (per step or time interval) is calculated. These Calculation is done for very short intervals (periods) of for example, 0.1 seconds. Subsequently, the course the increase of the coil radius in a subsequent one Acceleration phase parallel to the calculation of the by the Slip distorted course of increase of the coil radius in the acceleration phase calculated. From the comparison of Course of increase of the coil radius in the immediate previous phase with the by the slip distorted course of increase of the coil radius in the following slip phase is the respective size of the Schupfes per time interval (period) determined.

Bei einem bekannten Verfahren der eingangs genannten Art (DE 43 39 217 A1) wird die Durchmesserberechnung beispielsweise dazu benutzt, den Wechselzeitpunkt der Kreuzspule gegen eine leere Hülse durchmesserabhängig zu bestimmen. Bei diesem Verfahren ist es aber auch bekannt, den Wechsel der Kreuzspule gegen eine leere Hülse abhängig von der aufgewickelten Fadenlänge zu bestimmen. Hierbei wird die aufgewundene Fadenlänge durch Abzählen der Umdrehungen der Wickeltrommel ermittelt, die mit der bei einer Umdrehung geförderten, bekannten Fadenlänge multipliziert werden. Das Erzeugen von Schlupf in möglichen Bildzonen wird durch Ein- und Ausschalten eines die Wickeltrommel antreibenden Motors bewirkt. Innerhalb einer vorgegebenen Bandbreite der Drehzahl wird die Drehzahl der Wickeltrommel mittels Einschalten des Motors relativ schnell von der unteren Grenze auf die obere Grenze erhöht, wonach dann der Motor wieder abgeschaltet wird, bis die untere Grenze erreicht wird. Während des Beschleunigens des Motors entsteht Schlupf. In a known method of the type mentioned (DE 43 39 217 A1), the diameter calculation, for example used to change the time of the cross-wound bobbin against a determine empty sleeve diameter-dependent. In this process But it is also known, the change of the cheese against an empty sleeve depending on the wound thread length to determine. This is the wound thread length determined by counting the revolutions of the winding drum, the with the promoted during a turn, known thread length be multiplied. Creating slip in possible Picture zones is turned on and off by a Winding drum driving motor causes. Within one given bandwidth of the speed is the speed of Winding drum by switching on the engine relatively quickly increased from the lower limit to the upper limit, after which then the engine is switched off again until the lower limit is reached. During acceleration of the engine arises Slip.

Die Kreuzspule ist in einem schwenkbaren Spulenrahmen gelagert und mit einem Auflagedruck an die Wickeltrommel angedrückt. In einer älteren, nicht vorveröffentlichten Patentanmeldung (DE 198 29 597 A) ist offenbart, zum Erzeugen eines Schlupfes beim Durchfahren von Bildzonen den Auflagedruck abzusenken, was für sich alleine oder in Verbindung mit dem Ein- und Ausschalten des Motors durchgeführt werden kann.The cross-wound bobbin is mounted in a pivoting creel and pressed with a contact pressure to the winding drum. In an older, not previously published patent application (DE 198 29 597 A) is disclosed for producing a Slippage when driving through image zones to lower the bearing pressure, alone or in conjunction with the On and off the engine can be performed.

Wenn bei einem derartigen Verfahren der Wechsel der Kreuzspule abhängig von einer Sollfadenlänge durchgeführt werden soll, so ist das relativ problemlos. Der Schlupf spielt dabei keine entscheidende Rolle und kann gegebenenfalls auch noch über Korrekturfaktoren berücksichtigt werden, die das Ergebnis des Drehzahlgebers der Wickeltrommel, beispielsweise eines Inkrementalzählers, um die Größe des Schlupfes bereinigen.If in such a method, the change of the cheese depending on a nominal thread length should, so that's relatively easy. The slip plays here not crucial and may possibly also be taken into account via correction factors that the result the speed sensor of the winding drum, for example a Incremental counter to clean up the amount of slippage.

Probleme ergeben sich jedoch, wenn ein durchmesserabhängiger Wechsel der Kreuzspule durchgeführt werden soll, nämlich wenn der einstellbare Durchmesser, bei welchem eine Spulstelle abgestellt werden soll, innerhalb einer Bildzone erreicht wird. In diesem Fall kann die Berechnung des Durchmessers der Kreuzspule mit Hilfe des jeweils aktuellen Drehzahlverhältnisses von Kreuzspule und Wickeltrommel und des Durchmessers der Wickeltrommel zu Fehlern von mehreren Millimetern führen. Dieser Fall tritt durchaus nicht selten ein, da die Zeit, die zum Durchfahren einer Bildzone benötigt wird, bis zu mehreren Minuten betragen kann.Problems arise, however, if a diameter-dependent Change of the cheese should be performed, namely when the adjustable diameter, in which turned off a winding unit is to be achieved within an image zone. In this case, the calculation of the diameter of the Cheese with the help of the current speed ratio of cheese and winding drum and the diameter the winding drum lead to errors of several millimeters. This case occurs quite often, since the time, the is required to drive through an image zone, up to several Minutes can be.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art so zu verbessern, daß eine möglichst genaue Durchmessererfassung auch in Bildzonen möglich ist und daß es damit auch möglich ist, bei einem vorgegebenen Durchmesser der Kreuzspulen die Spulstelle abzustellen. The invention has for its object to provide a method of to improve the type mentioned above so that a possible accurate diameter detection is also possible in image zones and that it is also possible with a given diameter the cheeses off the winding unit.

Diese Aufgabe wird durch das Verfahren gemäß dem Anspruch 1 gelöst.This object is achieved by the method according to claim 1.

Auf diese Weise ist es möglich, auch während des Durchfahrens einer Bildzone relativ genau auf den aktuellen Durchmesser der Kreuzspule zu schließen und gegebenenfalls bei Erreichen eines vorgegebenen Durchmessers die betreffende Spulstelle abzuschalten.In this way it is possible, even while driving through an image zone relatively accurately to the current diameter to close the cross-wound bobbin and, if necessary, on reaching a given diameter, the winding unit in question off.

Bei einer ersten Weiterbildung der Erfindung wird vorgesehen, daß der Verlauf der Zunahme des Durchmessers der Kreuzspule über die Zeit berechnet wird und daß während des Durchfahrens einer Bildzone die Zeit erfaßt wird. Über die erfaßte Zeitspanne kann somit relativ genau auf den zu dieser Zeitspanne vorliegenden Durchmesser der Kreuzspule geschlossen werden. Es ist dann möglich, eine Zeitspanne vorzugeben, bei der der Solldurchmesser erwartet wird und nach Ablauf dieser Zeitspanne die Spulstelle abzuschalten.In a first development of the invention is provided that the course of the increase in the diameter of the cheese is calculated over time and that while driving through an image zone the time is detected. About the recorded time span can thus be relatively accurate to that at this time be closed present diameter of the cheese. It is then possible to specify a period of time during which the Nominal diameter is expected and after this period to turn off the winding unit.

Bei einer anderen Weiterbildung der Erfindung wird vorgesehen, daß der Verlauf der Zunahme des Durchmessers der Kreuzspule aus dem Verhältnis von aufgewickelter Fadenlänge und berechnetem Durchmesser berechnet wird und daß während des Durchfahrens einer Bildzone die aufgewickelte Fadenlänge erfaßt wird. Bei einer einfachen Lösung wird die aufgewickelte Fadenlänge mittels Erfassens der Umdrehungen der Wickeltrommel ermittelt. Dabei wird vorausgesetzt, daß die pro Umdrehung der Wickeltrommel geförderte Garnlänge oder Fadenlänge bekannt ist. Falls bei dieser Lösung während des Durchfahrens einer Bildzone der Solldurchmesser der Kreuzspule erreicht wird, so ergibt sich dieser aus dem vor Erreichen der Bildzone errechneten Durchmesser und einer vorausbestimmbaren Anzahl von Umdrehungen der Wickeltrommel.In another embodiment of the invention is provided that the course of the increase in the diameter of the cheese from the ratio of wound thread length and calculated diameter and that during the Passing through an image zone detects the wound thread length becomes. In a simple solution, the wound up Thread length by detecting the revolutions of the winding drum determined. It is assumed that the per revolution the winding drum promoted yarn length or thread length is known. If this solution while driving through reaches an image zone of the target diameter of the cheese is, this results from the before reaching the image zone calculated diameter and a predictable number of turns of the winding drum.

Zur Ausgabe des Ist-Durchmessers der während des Durchfahrens einer Bildzone fertiggestellten Kreuzspule dient der aus dem zu erwartenden Verlauf der Zunahme ermittelte Durchmesser. Auf diese Weise kann die Zuordnung unzutreffender oder fehlerbehafteter Durchmesserangaben bei derartigen Kreuzspulen vermieden werden. Dies ist auch dann von Vorteil, wenn der Wechsel der Kreuzspule abhängig von einer Sollfadenlänge durchgeführt wird. Die Ausgabe des Durchmessers kann als Ausdruck erfolgen. Weitere Ausgabemöglichkeiten bestehen in der Anzeige auf einem Display oder mittels eines Monitors.To output the actual diameter during transit An image zone finished cheese serves the from the expected diameter of the increase. In this way, the assignment may be inaccurate or error prone Diameter information in such cheeses be avoided. This is also advantageous if the Changing the cross-wound bobbin depending on a nominal thread length is carried out. The output of the diameter can be expressed as an expression respectively. Other output options exist in the Display on a display or via a monitor.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels.Other features and advantages of the invention will become apparent the following description of an embodiment.

Die Zeichnung zeigt in weitgehend schematischer Darstellung den oberen Bereich einer Spulstelle mit der zugehörigen Steuerung.The drawing shows a largely schematic representation the upper part of a winding unit with the associated Control.

Eine Spulmaschine besitzt mehrere weitgehend unabhängig voneinander arbeitende Spulstellen, an welchen jeweils eine Kreuzspule 10 gewickelt wird. Auf die Kreuzspule 10 wird ein Faden 11 aufgewickelt, der in Pfeilrichtung 12 von einer nicht dargestellten Spinnspule abgezogen wird. Die Fadenmenge mehrerer Spinnspule wird zu einer Kreuzspule 10 zusammengefaßt.A winder has several largely independent of each other working winding units, to each one Cross-wound bobbin 10 is wound. On the cheese 10 is a Thread 11 wound, in the direction of arrow 12 of a Spinning bobbin, not shown, is withdrawn. The amount of thread several bobbin is combined to form a cheese 10.

Die Kreuzspule 10 wird mittels einer Wickeltrommel 13 mittels Friktion angetrieben. Die Kreuzspule 10 ist mit ihrer Spulenhülse 14 zwischen Spulentellern 15, 16 der Arme eines Spulenrahmens gehalten, der um eine zur Achse der Wickeltrommel 13 parallele Achse schwenkbar gelagert ist.The cheese 10 is by means of a winding drum 13 by means Friction driven. The cross-wound bobbin 10 is with its bobbin tube 14 between Spuleellern 15, 16 of the arms of a creel held around the axis of the winding drum 13 is mounted pivotably parallel axis.

Die Wickeltrommel 13 ist mit einer sogenannten Kehrgewinderille versehen, mittels der der auflaufende Faden 11 in Querrichtung in sogenannter wilder Wicklung verlegt wird. Auf dem Weg zu der Wickeltrommel 13 durchläuft der Faden 11 einen elektronischen Fadenreiniger 17, eine Trenneinrichtung 18 und einen Fadenführer 19. In dem Fadenreiniger 17 wird der Faden 11 auf Fehler geprüft (Dickstellen und Dünnstellen), die bei Überschreiten von vorgegebenen Toleranzen aus dem Faden herausgereinigt werden. Die von dem Fadenreiniger 17 ermittelten Werte des Fadens 11 werden an einen Spulstellenrechner 20 übermittelt, der diese Werte mit vorgegebenen Werten, die beispielsweise in den Spulstellenrechner 20 von einem zentralen Maschinenrechner eingegeben werden, vergleicht. Bei unzulässigen Abweichungen wird die Trenneinrichtung 18 betätigt. Das Fadenstück mit dem unzulässigen Fadenfehler wird in bekannter Weise aus dem Faden herausgetrennt, wonach - gesteuert von dem Spulstellenrechner 20 - wieder eine Fadenverbindung hergestellt und der Spulvorgang wieder aufgenommen wird.The winding drum 13 is provided with a so-called Kehrgewinderille provided by means of the incoming thread 11 in the transverse direction laid in so-called wild winding. On the Way to the winding drum 13, the thread 11 passes through a electronic thread cleaner 17, a separator 18 and a thread guide 19. In the thread cleaner 17, the thread 11 checked for errors (thick spots and thin spots), which at Exceeding predetermined tolerances cleaned out of the thread become. The determined by the thread cleaner 17 Values of the thread 11 are sent to a winding station computer 20 transmitted these values with predetermined values, the For example, in the winding station 20 of a central Machine computer to be entered compares. Inadmissible Deviations, the separator 18 is actuated. The thread piece with the improper thread error is known Way out of the thread, after which - controlled from the winding station 20 - again a thread connection made and the winding process is resumed.

Die Wickeltrommel 13 ist mittels eines Elektromotors 21 angetrieben, dessen Drehzahl mittels eines Frequenzumrichters 22 vorgegeben wird. Der Wickeltrommel 13 ist ein Drehzahlgeber zugeordnet, der an dem Spulstellenrechner 20 angeschlossen ist. Der Drehzahlgeber besteht beispielsweise aus einem Polrad 23 und einem Hallsensor 24. Des weiteren wird die Drehzahl der Kreuzspule 10 erfaßt und in den Spulstellenrechner 20 eingegeben. Hierzu ist an den Spulenteller 16 ein Polrad 25 angebracht, dem ein Hallsensor 26 zugeordnet ist.The winding drum 13 is driven by means of an electric motor 21, its speed by means of a frequency converter 22nd is given. The winding drum 13 is a speed sensor assigned, which connected to the winding station computer 20 is. The speed sensor consists for example of a pole wheel 23 and a Hall sensor 24. Furthermore, the speed the cross-wound bobbin 10 detected and in the winding station computer 20 entered. For this purpose, a magnet wheel is on the reel plate 16 25 attached, which is associated with a Hall sensor 26.

Dem Spulstellenrechner 20 werden, wie das mit dem Eingang 27 angedeutet ist, für alle Spulstellen gemeinsame Arbeitsbedingungen mittels eines Maschinenrechners vorgegeben. Dies sind beispielsweise die Spulgeschwindigkeit, d.h. die Drehzahl der Wickeltrommel 13, die Toleranzen für den Fadenreiniger 17 und gegebenenfalls auch die Werte, auf die eine nicht dargestellte Spannungsregeleinrichtung eingestellt werden soll, die die Wickelspannung regelt. Falls die Auflagekraft zwischen Kreuzspule 10 und Wickeltrommel 13 gesteuert wird, so wird auch hierfür die Grundeinstellung von dem Maschinenrechner vorgegeben. Der Spulstellenrechner 20 seinerseits variiert dann den Betrieb der betreffenden Spulstelle abhängig von den jeweils dort vorliegenden Arbeitsbedingungen, beispielsweise von dem Abwickelzustand der Spinnspule und von dem Aufwickelzustand oder der Größe der Kreuzspule 10 o. dgl. Insbesondere bestimmt er auch eine sogenannte Bildstörung, durch welche Bildwicklungen in vorbekannten möglichen Bildzonen vermieden werden. Hierzu wird beispielsweise vorgesehen, daß der Spulstellenrechner den Motor 21 ständig zwischen Toleranzgrenzen ein- und ausschaltet, wobei beim Erreichen der unteren Toleranzgrenze der Motor 21 eingeschaltet und so stark beschleunigt wird, daß ein Schlupf zwischen Wickeltrommel 13 und Kreuzspule 10 entsteht, wonach er bei Erreichen der oberen Toleranzgrenze abgeschaltet wird, so daß die Drehzahl oder Winkelgeschwindigkeit der Wickeltrommel 13 mitsamt der dann ohne Schlupf angetriebenen Kreuzspule 10 bis zur unteren Toleranzgrenze abfällt. Um eine Bildstörung mittels Schlupf zwischen der Wickeltrommel 13 und der Kreuzspule 10 zu erreichen, ist darüber hinaus möglich, den Anlagedruck der Kreuzspule 10 auf der Wickeltrommel 13 zu verändern, wozu der Spulenrahmen mit einer nicht dargestellten Belastungseinrichtung versehen werden kann, die von dem Spulstellenrechner 20 gesteuert wird und die die Auflagekraft zwischen Kreuzspule 10 und Wickeltrommel 13 festlegt.The winding station 20, as with the input 27th is indicated, common working conditions for all winding units predetermined by a machine computer. these are for example, the winding speed, i. the speed of the Winding drum 13, the tolerances for the thread cleaner 17 and possibly also the values to which a not shown Voltage regulating device is to be set, which is the Winding tension regulates. If the contact force between cheese 10 and winding drum 13 is controlled, so will For this purpose, the default setting specified by the machine computer. The winding station computer 20 then varies the operation of the relevant winding unit depending on the respective existing working conditions, for example from the unwinding state of the bobbin and the winding state or the size of the cheese 10 or the like. In particular he also determines a so-called picture disorder, by which Image windings avoided in previously known possible image zones become. For this purpose, for example, provided that the winding station computer the motor 21 constantly between tolerance limits on and off, whereby when reaching the lower tolerance limit the engine 21 is turned on and accelerated so much is that a slip between winding drum 13 and Cheese 10 is formed, after which he reaches the top Tolerance limit is turned off, so that the speed or Angular velocity of the winding drum 13 together with the then without slip driven cross-wound bobbin 10 to the lower tolerance limit drops. To a picture disturbance by means of slip between the winding drum 13 and the cross-wound bobbin 10, is also possible, the system pressure of the cheese 10 on the winding drum 13 to change what the creel with a loading device, not shown can be provided, which is controlled by the winding station computer 20 is and the bearing force between cheese 10 and winding drum 13 determines.

Aufgrund der Daten des Drehzahlgebers 23, 24 der Wickeltrommel 13 und des Drehzahlgebers 25, 26 der Kreuzspule 10 kann der Spulstellenrechner 20 unter Verwertung des bekannten Durchmessers der Wickeltrommel 13 den aktuellen Durchmesser der Kreuzspule 10 jederzeit berechnen. Auf diese Weise ist es möglich, das Erreichen eines vorgegebenen Durchmessers festzustellen und bei Erreichen dieses Durchmessers der Kreuzspule 10 einen Spulenwechsel durchzuführen, wozu beispielsweise die Spulstelle abgeschaltet wird, d.h. der Antriebsmotor 21 stillgesetzt wird. Dadurch ist es möglich, an allen Spulstellen einer Spulmaschine Kreuzspulen 10 mit dem gleichen Durchmesser zu produzieren.Based on the data of the speed sensor 23, 24 of the winding drum 13 and the speed sensor 25, 26 of the cheese 10 can the winding station 20 using the known Diameter of the winding drum 13 the current diameter the cross-wound bobbin 10 at any time. That's the way it is possible to detect the reaching of a given diameter and upon reaching this diameter of the cheese 10 perform a bobbin change, including, for example the winding unit is switched off, i. the drive motor 21 is stopped. This makes it possible at all winding units a winder cheeses 10 of the same diameter to produce.

Diese Berechnung des Durchmessers der Kreuzspule 10 ist jedoch dann mit relativ großen Fehlern behaftet, wenn in dem Bereich des Solldurchmessers der Kreuzspule 10 gerade eine Bildzone liegt und entsprechend eine Bildstörung durchgeführt wird.However, this calculation of the diameter of the cheese 10 is then fraught with relatively large errors, if in the Range of the target diameter of the cheese 10 just one Picture zone is located and carried out according to a picture disorder becomes.

Um auch in diesem Fall eine möglichst exakte Bestimmung des Durchmessers der Kreuzspule 10 zu erlauben, wird die Berechnung des Durchmessers der Kreuzspule 10 aufgrund der Drehzahlen oder Winkelgeschwindigkeiten von Wickeltrommel 13 und Kreuzspule 10 sowie des bekannten Durchmessers der Wickeltrommel 13 durch weitere Schritte ergänzt. Hierzu wird aufgrund von vor Erreichen der Bildzone erfaßten Werten die in der Bildzone zu erwartende Zunahme des Durchmessers der Kreuzspule berechnet und dem in vorstehend erläuterter Weise vor Erreichen der Bildzone berechneten Durchmesser der Kreuzspule 10 zuaddiert.In this case too, the most exact possible determination of the Diameter of the cheese 10 to allow the calculation the diameter of the cheese 10 due to the speeds or angular velocities of winding drum 13 and Cheese 10 and the known diameter of the winding drum 13 supplemented by further steps. This is due to of values detected before reaching the image zone, in the image zone expected increase in the diameter of the Cheese and calculated in the manner explained above before reaching the image zone calculated diameter of the cheese 10 added.

Beispielsweise kann aus der fortlaufenden Berechnung des Durchmessers der Kreuzspule 10 aufgrund des Durchmessers der Wickeltrommel 13 und der Drehzahlverhältnisse der Verlauf der Zunahme des Durchmessers berechnet und in ein Verhältnis zu einer gemessenen Zeit gesetzt werden, so daß die Zunahme des Durchmessers der Kreuzspule 10 über die Zeit vorbekannt ist. Es ist dann möglich, das Erreichen eines in einer Bildzone liegenden Solldurchmessers dadurch zu erkennen, daß der Durchmesser vor Erreichen der Bildzone errechnet wird, zu dem dann die in einer vorausberechenbaren Zeitspanne erhaltene Zunahme des Durchmessers hinzuaddiert wird, so daß nach Ablauf dieser Zeitspanne die Spulstelle abgeschaltet wird. Wenn die zu erwartende Zunahme des Durchmessers der Kreuzspule 10 pro Zeiteinheit kurz vor Erreichen der Bildzone berechnet wird, so ist der mögliche Fehler relativ gering. Gegebenenfalls kann natürlich auch berücksichtigt werden, daß mit größer werdendem Spulendurchmesser die Zunahme des Durchmessers pro Zeit geringer wird.For example, from the continuous calculation of the Diameter of the cheese 10 due to the diameter of the Winding drum 13 and the speed ratios of the course of Increase of the diameter calculated and in relation to a measured time, so that the increase of the Diameter of the cheese 10 is already known over time. It is then possible to reach one in an image zone lying target diameter thereby recognize that the diameter is calculated before reaching the image zone, then to that the increase obtained in a predictable period of time the diameter is added, so that after expiry of this Time span the winding unit is switched off. If the expected Increase of the diameter of the cheese 10 per unit time is calculated shortly before reaching the image zone, so the possible error is relatively small. If necessary, can Of course, also be taken into account that with increasing Spool diameter, the increase in diameter per time becomes smaller.

Bei Spulstellen der geschilderten Art ist die pro Umdrehung der Wickeltrommel 13 geförderte und auf die Kreuzspule 10 aufgewickelte Fadenlänge bekannt. Diese Kenntnis kann ebenfalls ausgenutzt werden, um den Durchmesser einer Kreuzspule 10 auch während des Durchführens einer Bildstörung in einer Bildzone zu bestimmen. Hierzu berechnet der Spulstellenrechner 20 in einer schlupffreien Zone, wieviel Garnlänge benötigt wird, um den Durchmesser der Kreuzspule um eine vorgegebene Maßeinheit zu vergrößern, beispielsweise um einen Millimeter. Dies geschieht in der Weise, daß der Durchmesser der Kreuzspule 10 fortlaufend aufgrund des Drehzahlverhältnisses und des bekannten Durchmessers der Wickeltrommel 13 berechnet wird, wobei gleichzeitig die Garnlänge ermittelt wird, die benötigt wird, damit der Durchmesser der Kreuzspule 10 um eine Maßeinheit zunimmt, beispielsweise um einen Millimeter. In der Bildzone kann dann die aufgewickelte Garnlänge mittels Zählen der Umdrehungen der Wickeltrommel festgestellt werden. Es ist dann möglich, den Durchmesser der Kreuzspule 10 vor Erreichen der Bildzone in der schlupfreien Phase exakt zu berechnen und dann festzulegen, wieviel Umdrehungen der Wickeltrommel 13 noch benötigt werden, damit danach der Solldurchmesser der Kreuzspule 10 erreicht wird. Wenn das Verhältnis von Fadenlänge zur Zunahme des Durchmessers der Kreuzspule 10 kurz vor Erreichen der Bildzone berechnet wird, so ist der anschließend mögliche Fehler relativ klein. Es kann jedoch auch berücksichtigt werden, daß bei größer werdendem Durchmesser der Kreuzspule 10 sich das Verhältnis von Fadenlänge zur Zunahme des Durchmessers ändert.For winding units of the type described is the per revolution the winding drum 13 funded and the cross-wound bobbin 10th wound thread length known. This knowledge can also be be exploited to the diameter of a cheese 10 even while performing a picture disturbance in one To determine the image zone. For this purpose, the winding station calculator calculates 20 in a slip-free zone, how much yarn length is needed is to the diameter of the cheese to a predetermined To increase the unit of measurement, for example by one millimeter. This happens in such a way that the diameter of the Cross-wound bobbin 10 continuously due to the speed ratio and the known diameter of the winding drum 13 calculated is, at the same time the yarn length is determined, the is needed so that the diameter of the cheese 10 by one Unit of measurement increases, for example by one millimeter. In the image zone can then the wound yarn length means Counting the revolutions of the winding drum can be determined. It is then possible, the diameter of the cheese 10 before Accurate calculation of the image zone in the slip-free phase and then determine how many revolutions of the winding drum 13 are still needed, so that afterwards the nominal diameter the cheese 10 is reached. If the ratio of thread length to increase the diameter of the cheese 10 is calculated shortly before reaching the image zone, so is the subsequently possible errors relatively small. It can, however also be taken into account that with increasing diameter the cheese 10 is the ratio of thread length to increase the diameter changes.

Auch wenn der Wechsel der Kreuzspule 10 abhängig von einer Sollfadenlänge durchgeführt wird und für das Auslösen des Wechsels der exakte Durchmesser der Kreuzspule 10 nicht benötigt wird, sind relativ große Fehler in der Angabe des Durchmessers der während des Durchfahrens einer Bildzone fertiggestellten Kreuzspule unerwünscht. Zur Ausgabe des Ist-Durchmessers dient daher auch in diesem Fall der aus dem zu erwartenden Verlauf der Zunahme ermittelte Durchmesser. Die Ausgabe des Durchmessers wird als Ausdruck mittels des Drukkers 28 durchgeführt. Alternativ oder zusätzlich kann die Ausgabe in nicht dargestellter Weise als Anzeige auf einem Display oder mittels eines Monitors erfolgen.Even if the change of the cheese 10 depends on a Target thread length is performed and for triggering the Change the exact diameter of the cheese 10 is not needed are relatively large errors in the indication of the diameter completed during the passage through an image zone Cheese unwanted. To output the actual diameter therefore also serves in this case from the to expected increase in diameter. The Output of the diameter is expressed as an expression by means of the printer 28 performed. Alternatively or additionally, the Output in a manner not shown as an indication on one Display or by means of a monitor.

Claims (7)

  1. A method for winding cheeses in random windings on a bobbin winding machine, the winding heads of which each contain a winding drum (13) driving a cheese by means of friction and h generate slippage between the cheese (10) and the winding drum (13), whereby the diameter of the cheese (10) is calculated from the known diameter of the winding drum (13) and the measured rotational speeds of the winding drum (13) and the cheese, and a slip is produced when passing through pattern zones,
    characterised in that to determine the actual diameter of the cheese (10) as it passes through a pattern zone before it is reached, the course to be expected of the increase in the diameter is calculated and the increases in diameter produced when passing through the pattern zone are added to the diameter of the cheese calculated before reaching the pattern zone from the speed ratio of the cheese (10) and winding drum (13) and the diameter of the winding drum (13),
    in that the diameter determined in this manner is used to identify that a predetermined desired diameter inside a pattern zone has been reached
    and in that the winding of the cheese at the winding head is ended when the desired diameter is reached.
  2. A method according to Claim 1,
    characterised in that the course of the increase in the diameter of the cheese (10) over time is calculated
    and in that the time during the passage through a pattern zone is recorded.
  3. A method according to Claim 2,
    characterised in that a time period until the desired diameter is reached, which takes place during the passage through a pattern zone, is calculated in advance,
    and in that after the previously calculated time period has expired the switching off of the winding head takes place.
  4. A method according to Claim 1,
    characterised in that the course of the increase in the diameter of the cheese (10) is calculated from the ratio of the wound yarn length and the calculated diameter
    and in that the wound length of yarn is detected during passage through a pattern zone.
  5. A method according to Claim 4,
    characterised in that the wound length of yarn is recorded by means of recording the revolutions of the winding drum (13) .
  6. A method according to one of the preceding Claims,
    characterised in that the diameter calculated from the expected course of the increase is used for the output of the actual diameter of a cheese (10) completed during the passage through a pattern zone.
  7. A method according to Claim 6,
    characterised in that the output of the diameter takes place as a printout.
EP00122348A 1999-12-22 2000-10-24 Method for winding cross-wound bobbins Expired - Lifetime EP1110896B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19961982A DE19961982A1 (en) 1999-12-22 1999-12-22 Process for winding cross-wound bobbins
DE19961982 1999-12-22

Publications (3)

Publication Number Publication Date
EP1110896A2 EP1110896A2 (en) 2001-06-27
EP1110896A3 EP1110896A3 (en) 2002-09-25
EP1110896B1 true EP1110896B1 (en) 2005-02-09

Family

ID=7933788

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Application Number Title Priority Date Filing Date
EP00122348A Expired - Lifetime EP1110896B1 (en) 1999-12-22 2000-10-24 Method for winding cross-wound bobbins

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US (1) US6405965B2 (en)
EP (1) EP1110896B1 (en)
JP (1) JP4787404B2 (en)
AT (1) ATE288872T1 (en)
DE (2) DE19961982A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009023785A (en) * 2007-07-19 2009-02-05 Murata Mach Ltd Yarn winding device
DE102008008083A1 (en) 2008-01-28 2009-07-30 Wilhelm Stahlecker Gmbh Method and apparatus for making cross-wound packages
CN111232755B (en) * 2020-01-17 2021-08-13 江苏恒力化纤股份有限公司 Method for automatically adjusting coil diameter of wire coil to avoid abnormal formation of wire coil

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH663402A5 (en) * 1981-12-04 1987-12-15 Loepfe Ag Geb METHOD FOR DETERMINING THE YARN LENGTH WINDED ON A CROSS REEL WITH FRICTION DRIVE BY A SLOT DRUM.
DE3703869C2 (en) * 1987-02-07 1996-12-12 Schlafhorst & Co W Method for monitoring and / or controlling the winding process and winding unit for executing the method
DE3810365A1 (en) 1988-03-26 1989-10-05 Schlafhorst & Co W METHOD AND DEVICE FOR DETERMINING THE COIL SCOPE OF CRANES AND FOR EVALUATING THE RESULT
JPH0346966A (en) * 1989-07-14 1991-02-28 Murata Mach Ltd Package take-up method
CA1330839C (en) * 1989-08-30 1994-07-19 Douglas Edward Turek Method of predicting yarn package size
DE4339217A1 (en) * 1993-11-18 1995-05-24 Schlafhorst & Co W Bobbin winder control
DE19619706A1 (en) * 1995-05-29 1996-12-05 Barmag Barmer Maschf Bobbin winding
DE19607905B4 (en) * 1996-03-01 2006-09-14 Saurer Gmbh & Co. Kg Method and device for producing cheeses in wild winding
DE19625510A1 (en) 1996-06-26 1998-01-02 Schlafhorst & Co W Slip size at yarn reel wound by friction roller
DE19625511A1 (en) * 1996-06-26 1998-01-02 Schlafhorst & Co W Method and device for producing cross-wound bobbins in a wild winding
DE19625512A1 (en) * 1996-06-26 1998-01-15 Schlafhorst & Co W Method and device for determining the diameter of a cheese
DE10021963A1 (en) * 1999-05-14 2000-12-21 Barmag Barmer Maschf Winding of yarns on cross-wound packages involves arranging the variation of traverse length to ensure that turning points are spaced round periphery

Also Published As

Publication number Publication date
DE50009472D1 (en) 2005-03-17
DE19961982A1 (en) 2001-07-05
JP2001180867A (en) 2001-07-03
EP1110896A3 (en) 2002-09-25
ATE288872T1 (en) 2005-02-15
JP4787404B2 (en) 2011-10-05
EP1110896A2 (en) 2001-06-27
US6405965B2 (en) 2002-06-18
US20010004998A1 (en) 2001-06-28

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