EP1067072A2 - Method and device for determining a reel parameter for a tape winding operation - Google Patents

Method and device for determining a reel parameter for a tape winding operation Download PDF

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Publication number
EP1067072A2
EP1067072A2 EP00112998A EP00112998A EP1067072A2 EP 1067072 A2 EP1067072 A2 EP 1067072A2 EP 00112998 A EP00112998 A EP 00112998A EP 00112998 A EP00112998 A EP 00112998A EP 1067072 A2 EP1067072 A2 EP 1067072A2
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EP
European Patent Office
Prior art keywords
winding
measuring
length
determining
measuring cycle
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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.)
Granted
Application number
EP00112998A
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German (de)
French (fr)
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EP1067072B1 (en
EP1067072A3 (en
Inventor
Hermann Nesgen
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Unitechnik Cieplik & Poppek GmbH
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Unitechnik Cieplik & Poppek 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
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/005—Sensing web roll diameter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/26—Mechanisms for controlling contact pressure on winding-web package, e.g. for regulating the quantity of air between web layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/14—Diameter, e.g. of roll or 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
    • B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
    • B65H2557/20—Calculating means; Controlling methods
    • B65H2557/24—Calculating methods; Mathematic models
    • B65H2557/242—Calculating methods; Mathematic models involving a particular data profile or curve

Definitions

  • the invention relates to a method for determining a the winding density-related winding parameters of a tape winding process, and an apparatus for performing the method.
  • Tape material made of metal foil or plastic foil becomes too large coils wound up to be shipped to processing plants to become.
  • the winding on a winding core takes place with high speed, tearing air into the wrap becomes.
  • a certain amount of air between the windings of the Wrapping is desirable because it makes the wrap a certain amount Maintains softness and elasticity.
  • a homogeneous and with the desired air inclusion winding can in processed at high speed become. With winding of poor quality, however, the Unwinding speed can be reduced. There is therefore a Need for tape winding processes with a defined winding density to be able to perform.
  • the winding density is the ratio of the actual Weight of the wound material web in the ratio to the theoretically possible full weight of the Wrap without air pockets.
  • the invention has for its object a method and a device for determining a related to the winding density Specify winding parameters to order with simple means to enable a highly accurate determination of the winding parameter.
  • the invention is related to the winding density Winding parameters determined in that one after the other occurring measuring cycles that a selected number of revolutions of the winding core correspond to that wound up Winding length is determined.
  • the two measured values of the winding lengths are then related to each other, taking into account the material thickness of the winding parameters becomes.
  • the winding parameter to be calculated is the winding density or the strength of the between two Wrapped layers of air.
  • the procedure can be carried out with only two measuring devices, from which the one measuring device detects the winding length, while the other comprises the revolutions of the winding core. From the values of the values obtained during successive measuring cycles
  • the desired winding parameters can be calculated from the winding length on condition that the material thickness is known is and remains constant, or with a thickness measuring device is continuously recorded.
  • the invention makes it possible to refer to the winding density Not to determine parameters only at the end of a winding process, but to know already during the winding. this makes possible it to take immediate influence and regulate the parameter to make.
  • the extent of a wound turn of the The extent of the previous turn can be subtracted.
  • the so determined difference in length is a direct measure of the Diameter increase of the winding.
  • the diameter increase is that Sum of material thickness plus air influence.
  • the start diameter and end diameter refer to the start and end of the same winding cycle.
  • the number of revolutions of the winding core that a measuring cycle result is preferably an integer. In this case needs only the zero crossing is detected with each revolution to become.
  • the number of revolutions can be counted by the zero crossing pulses be determined.
  • a measuring cycle consist of exactly 10 revolutions. It is also possible to choose any other angle of rotation size as measuring cycle, for example 270 ° or 500 °. It is important that the measuring cycle determined based on a defined angle of rotation of the winding core becomes.
  • the method according to the invention is a pure measuring method in which the winding parameter is determined becomes.
  • the tape wrap is then provided with information about the measured winding parameters sent to the recipient. Based on the parameter, the receiver knows which maximum Unwinding speed of the tape reel to be unwound may.
  • the invention also enables regulation of the parameter in the Meaning of keeping constant during the winding process. For this a regulation is carried out, whereby as a manipulated variable for keeping constant of the winding parameter the contact pressure of a pressure roller or changed the tensile force of the drive of the winding core becomes.
  • the computing device has a table contains the calculated diameter for each interval of the angle and the absolute value of the winding length there is the possibility of using the accruing Data for other applications. For example, kick when winding a tape tear or a patch, then is it is customary to cut out the relevant areas and the Ultrasonically weld the ends of the strips together on the winder. The last layers are unwound from the winding before welding. The current material run length goes through this unwinding of the wrap lost. According to the invention Welding based on the next measuring cycles the current diameter of the winding can be calculated. This diameter comes with compared to the diameters stored in the table. The Barrel length of the diameter with the current diameter corresponds as a new setting value in the meter counter of the Wicklers written. Here, if the current diameter does not exactly match a stored diameter, an interpolation is done.
  • the drawing shows a winding core 10 by one (not shown) motor is driven.
  • a web of material 11 is wound up on the winding core 10 to form a coil winding 12.
  • the strip material 11 is a thin foil made of aluminum, how they as a vapor-tight layer of beverage bags and the like. used becomes.
  • the material thickness is 6 to 10 ⁇ m.
  • the strip material 11 comes from a constant production line Speed. It runs between two rollers 13, 14 through, the slip-free on opposite sides of the tape material attack and are not driven.
  • the wave of Roller 13 is provided with a pulse generator 15, which is high Angular resolution has numerous pulses per revolution of the shaft supplies.
  • the pulse generator 15 forms a measuring device 16 to determine the incoming winding length.
  • a pulse generator 17 is coupled to the shaft of the winding core 10. This delivers with each revolution of the winding core 10 an impulse, a very short impulse at the zero crossing.
  • the pulse generator 17 forms a measuring device 18 Determination of the revolutions of the winding core 10.
  • the measuring devices 16 and 18 are equipped with an evaluation circuit 19 connected.
  • the output pulses of the counter 20 limit each a measuring cycle, here ten revolutions of the winding core matters.
  • the pulses from the measuring device 16 are fed to a counter 21, whose reset input R is connected to an OR gate 22 is.
  • the counter 21 is provided with a hold circuit 23. This takes over the counter reading of the counter 21, if at their Latch input L a control pulse occurs.
  • the gate entrance L is connected to the output of the counter 20. If the counter 20 generates an output pulse at the end of a measuring cycle, The holding circuit 23 takes over the counter reading of the counter 21. This is simultaneously via the signal at its reset input R reset to zero.
  • the reset input R receives via the OR gate 22, the output signal of the counter 20 or a Control signal from the control cabinet controlling the winding system 24 is coming.
  • the output of the holding circuit 23 is connected via a line 25 connected to a computing device 26.
  • the computing device 26 is a PC with a screen and keyboard that the user can use Values such as material thickness of the strip material 11, final size the winding 12 and the like. can enter.
  • the computing device 26 is connected to the control cabinet 24 controlling the winding installation.
  • a measurement cycle exists in the present embodiment from ten revolutions of the winding core 12. During the measuring cycle are the pulses generated by the pulse generator 15 in the counter 21 counted. At the end of the measuring cycle, the counter reading of the counter 21 transferred to the hold circuit 23 and from this Line 25 supplied to the computing device 26. At the same time the next measuring cycle begins immediately.
  • Both parameters, winding density and strength of the included Air layer can on the screen of the computing device 26th are displayed. These parameters can be used in the following Processing of the tape reel can be recycled. For example After the winding process, each ribbon roll is placed in an annealing furnace annealed. The duration of the annealing process depends essentially on the Determines the amount of trapped air. In dependence of the thickness of the enclosed air layer can affect the duration of the Annealing process can be varied.
  • the traction with which the Winding core 10 is driven can be varied. While the belt speed constant, the tractive force of the motor can be changed. An increase in traction means a decrease in Air pockets.
  • Another way of influencing the trapped Air volume is the pressure of a pressure roller 28 to change by a pressure element 27, here a cylinder, pressed against the winding 12 at the run-up point of the band 11 becomes.
  • An increase in the contact pressure means a decrease of the air volume to be enclosed in the wrap.

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Winding Of Webs (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)

Abstract

The method involves determining the rotations of the winding core (10), determining a measurement cycle corresp. to a selected number of rotations of the winding core, measuring the length of strip material (11) wound during a measurement cycle and determining the winding parameter from the winding length over the measurement cycle and the winding length for a preceding cycle taken account of the material thickness. An Independent claim is also included for an arrangement for determining a winding parameter of a strip material winding process.

Description

Die Erfindung betrifft ein Verfahren zur Ermittlung eines auf die Wickeldichte bezogenen Wickelparameters eines Bandwickelvorganges, sowie eine Vorrichtung zur Durchführung des Verfahrens.The invention relates to a method for determining a the winding density-related winding parameters of a tape winding process, and an apparatus for performing the method.

Bandmaterial aus Metallfolie oder aus Kunststoffolie wird zu großen Coils aufgewickelt, um an Verarbeitungsbetriebe versandt zu werden. Das Aufwickeln auf einen Wickelkern erfolgt mit hoher Geschwindigkeit, wobei Luft in den Wickel hinein gerissen wird. Ein gewisser Lufteinschluß zwischen den Windungen des Wickels ist erwünscht, weil der Wickel dadurch eine gewisse Weichheit und Elastizität erhält. Wird die eingeschlossene Luftmenge zu groß, entstehen allerdings Unrundheiten und eine nicht zu akzeptierende Weichheit des Wickels. Ein homogener und mit dem gewünschten Lufteinschluß hergestellter Wickel kann in dem Verarbeitungsbetrieb mit hoher Geschwindigkeit abgewickelt werden. Bei Wickeln von schlechterer Qualität muß dagegen die Abwickelgeschwindigkeit reduziert werden. Es besteht daher ein Bedürfnis, Bandwickelvorgänge mit definierter Wickeldichte durchführen zu können.Tape material made of metal foil or plastic foil becomes too large coils wound up to be shipped to processing plants to become. The winding on a winding core takes place with high speed, tearing air into the wrap becomes. A certain amount of air between the windings of the Wrapping is desirable because it makes the wrap a certain amount Maintains softness and elasticity. Will the included Air volume too large, but non-roundness and one arise unacceptable softness of the wrap. A homogeneous and with the desired air inclusion winding can in processed at high speed become. With winding of poor quality, however, the Unwinding speed can be reduced. There is therefore a Need for tape winding processes with a defined winding density to be able to perform.

Ein Verfahren zur Bestimmung der Wickeldichte ist beschrieben in DE 41 16 081 A1. Hierbei werden die Materialstärke, die Wickellänge und der Außendurchmesser des Wickelballens gemessen. Aus der Folienstärke, der Wickellänge und der Größe der stirnseitigen Ringfläche des Wickelballens wird die Wickeldichte ermittelt. Die Wickeldichte ist das Verhältnis des tatsächlichen Gewichtes der aufgewickelten Materialbahn im Verhältnis zu dem rein theoretisch möglichen Voll-Gewicht des Wickels ohne Lufteinschlüsse.A method for determining the winding density is described in DE 41 16 081 A1. Here, the material thickness, the Wrapping length and the outside diameter of the wrapping bale measured. From the film thickness, the wrap length and the size of the the end face of the wrapping bale becomes the wrapping density determined. The winding density is the ratio of the actual Weight of the wound material web in the ratio to the theoretically possible full weight of the Wrap without air pockets.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung zur Ermittlung eines auf die Wickeldichte bezogenen Wickelparameters anzugeben, um mit einfachen Mitteln eine hochgenaue Bestimmung des Wickelparameters zu ermöglichen.The invention has for its object a method and a device for determining a related to the winding density Specify winding parameters to order with simple means to enable a highly accurate determination of the winding parameter.

Die Lösung dieser Aufgabe erfolgt erfindungsgemäß mit dem Verfahren des Patentanspruchs 1 und der Vorrichtung des Patentanspruchs 5.This object is achieved according to the invention with the method of claim 1 and the device of claim 5.

Nach der Erfindung wird der auf die Wickeldichte bezogene Wickelparameter dadurch ermittelt, daß in zwei nacheinander aufgetretenden Meßzyklen, die einer ausgewählten Anzahl von Umdrehungen des Wickelkerns entsprechen, jeweils die aufgespulte Wickellänge bestimmt wird. Die beiden Meßwerte der Wickellängen werden dann in Beziehung zueinander gesetzt, wobei unter Berücksichtigung der Materialstärke der Wickelparameter berechnet wird. Bei dem zu berechnenden Wickelparameter handelt es sich um die Wickeldichte oder um die Stärke der zwischen zwei Wickellagen eingeschlossenen Luftschicht. Das Verfahren kann mit lediglich zwei Meßeinrichtungen durchgeführt werden, von denen die eine Meßeinrichtung die Wickellänge erfaßt, während die andere die Umdrehungen des Wickelkernes umfaßt. Aus den während aufeinanderfolgender Meßzyklen gewonnenen Werten der Wickellänge können die gewünschten Wickelparameter berechnet werden, unter der Voraussetzung, daß die Materialstärke bekannt ist und konstant bleibt, oder mit einer Dickenmeßeinrichtung kontinuierlich erfaßt wird.According to the invention is related to the winding density Winding parameters determined in that one after the other occurring measuring cycles that a selected number of revolutions of the winding core correspond to that wound up Winding length is determined. The two measured values of the winding lengths are then related to each other, taking into account the material thickness of the winding parameters becomes. The winding parameter to be calculated is the winding density or the strength of the between two Wrapped layers of air. The procedure can be carried out with only two measuring devices, from which the one measuring device detects the winding length, while the other comprises the revolutions of the winding core. From the values of the values obtained during successive measuring cycles The desired winding parameters can be calculated from the winding length on condition that the material thickness is known is and remains constant, or with a thickness measuring device is continuously recorded.

Die Erfindung ermöglicht es, einen auf die Wickeldichte bezogenen Parameter nicht erst am Ende eines Wickelvorgangs zu ermitteln, sondern schon während des Wickelns zu kennen. Dies ermöglicht es, sofort Einfluß zu nehmen und eine Regelung des Parameters vorzunehmen.The invention makes it possible to refer to the winding density Not to determine parameters only at the end of a winding process, but to know already during the winding. this makes possible it to take immediate influence and regulate the parameter to make.

Generell kann von dem Umfang einer aufgewickelten Windung der Umfang der vorhergehenden Windung subtrahiert werden. Die so ermittelte Längendifferenz ist ein direktes Maß für die Durchmesserzunahme des Wickels. Die Durchmesserzunahme ist die Summe von Materialstärke plus Lufteinfluß.In general, the extent of a wound turn of the The extent of the previous turn can be subtracted. The so determined difference in length is a direct measure of the Diameter increase of the winding. The diameter increase is that Sum of material thickness plus air influence.

Die Wickeldichte WD kann nach folgender Formel berechnet werden: WD = spezifisches Gewicht Wickelspezifisches Gewicht Wickelgut oder WD = Wickellänge * Materialstärke * 4 (Enddurchmesser2-Startdurchmesser2) *π The winding density WD can be calculated using the following formula: WD = specific weight wrap specific weight of winding material or WD = Wrap length * material thickness * 4 (Final diameter 2 -Start diameter 2 ) * π

Startdurchmesser und Enddurchmesser beziehen sich auf Start und Ende desselben Wickelzyklus. Die Stärke DL der Luftschicht kann nach folgenden Gleichungen bestimmt werden: DL = (1 - spezifisches Gewicht Wickelgutspezifisches Gewicht Wickel ) * Materialstärke = (1 -1WD ) . Materialstärke oder DL = (Länge letzter Wickelzyklus) - (Länge vorletzter Wickelzyklus)2 * π *(Lagen pro Wickelzyklus)2 - Materialstärke The start diameter and end diameter refer to the start and end of the same winding cycle. The thickness DL of the air layer can be determined according to the following equations: DL = (1 - specific weight of winding material specific weight wrap ) * Material thickness = (1 - 1 WD ). Material thickness or DL = (Length of last winding cycle) - (Length of penultimate winding cycle) 2 * π * (layers per winding cycle) 2 - material thickness

Die Anzahl der Umdrehungen des Wickelkerns, die einen Meßzyklus ergeben, ist vorzugsweise ganzzahlig. In diesem Fall braucht lediglich jeweils der Nulldurchgang bei jeder Umdrehung detektiert zu werden. Die Umdrehungszahl kann durch Zählen der Nulldurchgangsimpulse bestimmt werden. So kann ein Meßzyklus beispielsweise aus exakt 10 Umdrehungen bestehen. Es ist aber auch möglich, als Meßzyklus jede andere Drehwinkelgröße zu wählen, beispielsweise 270° oder 500°. Wichtig ist, daß der Meßzyklus anhand eines definierten Drehwinkels des Wickelkernes bestimmt wird.The number of revolutions of the winding core that a measuring cycle result is preferably an integer. In this case needs only the zero crossing is detected with each revolution to become. The number of revolutions can be counted by the zero crossing pulses be determined. For example, a measuring cycle consist of exactly 10 revolutions. It is also possible to choose any other angle of rotation size as measuring cycle, for example 270 ° or 500 °. It is important that the measuring cycle determined based on a defined angle of rotation of the winding core becomes.

Das erfindungsgemäße Verfahren ist im einfachsten Fall ein reines Meßverfahrens, bei dem der Wickelparameter bestimmt wird. Der Bandwickel wird dann mit einer Information über den gemessenen Wickelparameter versehen an den Empfänger geschickt. Der Empfänger weis aufgrund des Parameters, mit welcher maximalen Abwickelgeschwindigkeit der Bandwickel abgewickelt werden darf.In the simplest case, the method according to the invention is a pure measuring method in which the winding parameter is determined becomes. The tape wrap is then provided with information about the measured winding parameters sent to the recipient. Based on the parameter, the receiver knows which maximum Unwinding speed of the tape reel to be unwound may.

Die Erfindung ermöglicht auch eine Regelung des Parameters im Sinne einer Konstanthaltung während des Wickelvorganges. Hierzu wird eine Regelung durchgeführt, wobei als Stellgröße zum Konstanthalten des Wickelparameters die Anpreßkraft einer Andrückwalze oder die Zugkraft des Antriebs des Wickelkernes verändert wird.The invention also enables regulation of the parameter in the Meaning of keeping constant during the winding process. For this a regulation is carried out, whereby as a manipulated variable for keeping constant of the winding parameter the contact pressure of a pressure roller or changed the tensile force of the drive of the winding core becomes.

Bei einer Vorrichtung, bei der die Recheneinrichtung eine Tabelle enthält, in die für jedes Intervall der errechnete Durchmesser des Winkels und der Absolutwert der Wickellänge eingeschrieben werden, besteht die Möglichkeit der Benutzung der anfallenden Daten für andere Anwendungen. Tritt beispielsweise beim Wickeln ein Bandabriß oder eine Flickstelle auf, dann ist es üblich, die betreffenden Stellen herauszuschneiden und die Bandenden auf dem Wickler mit Ultraschall zusammenzuschweißen. Vor dem Schweißen werden die letzten Lagen von dem Wickel abgewickelt. Durch dieses Abwickeln geht die aktuelle Materiallauflänge des Wickels verloren. Erfindungsgemäß kann nach einer Schweißung anhand der nächsten Meßzyklen der aktuelle Durchmesser des Wickels berechnet werden. Dieser Durchmesser wird mit den in der Tabelle abgelegten Durchmessern verglichen. Die Lauflänge des Durchmessers, der mit dem aktuellen Durchmesser korrespondiert, wird als neuer Setzwert in den Meterzähler des Wicklers geschrieben. Hierbei kann, wenn der aktuelle Durchmesser mit einem abgelegten Durchmesser nicht exakt übereinstimmt, eine Interpolation erfolgen.In a device in which the computing device has a table contains the calculated diameter for each interval of the angle and the absolute value of the winding length there is the possibility of using the accruing Data for other applications. For example, kick when winding a tape tear or a patch, then is it is customary to cut out the relevant areas and the Ultrasonically weld the ends of the strips together on the winder. The last layers are unwound from the winding before welding. The current material run length goes through this unwinding of the wrap lost. According to the invention Welding based on the next measuring cycles the current diameter of the winding can be calculated. This diameter comes with compared to the diameters stored in the table. The Barrel length of the diameter with the current diameter corresponds as a new setting value in the meter counter of the Wicklers written. Here, if the current diameter does not exactly match a stored diameter, an interpolation is done.

Im folgenden wird unter Bezugnahme auf die einzige Figur der Zeichnung ein Ausführungsbeispiel der Erfindung näher erläutert.In the following, with reference to the only figure of the Drawing an embodiment of the invention explained in more detail.

In der Zeichnung ist ein schematisches Schaltbild der Wickelvorrichtung mit Meßvorrichtung dargestellt.In the drawing is a schematic circuit diagram of the winding device shown with measuring device.

Die Zeichnung zeigt einen Wickelkern 10, der von einem (nicht dargestellten) Motor angetrieben wird. Eine Materialbahn 11 wird auf dem Wickelkern 10 zu einem Spulenwickel 12 aufgewickelt. Das Bandmaterial 11 ist eine dünne Folie aus Aluminium, wie sie als dampfdichte Schicht Getränketüten u.dgl. benutzt wird. Die Materialstärke beträgt 6 bis 10 µm. Das Bandmaterial 11 kommt von einer Herstellungsstraße mit konstanter Geschwindigkeit. Sie läuft zwischen zwei Walzen 13,14 hindurch, die schlupffrei an entgegengesetzten Seiten des Bandmaterials angreifen und nicht angetrieben sind. Die Welle der Walze 13 ist mit einem Impulsgeber 15 versehen, der eine hohe Winkelauflösung hat und pro Umdrehung der Welle zahlreiche Impulse liefert. Der Impulsgeber 15 bildet eine Meßeinrichtung 16 zur Bestimmung der zulaufenden Wickellänge.The drawing shows a winding core 10 by one (not shown) motor is driven. A web of material 11 is wound up on the winding core 10 to form a coil winding 12. The strip material 11 is a thin foil made of aluminum, how they as a vapor-tight layer of beverage bags and the like. used becomes. The material thickness is 6 to 10 µm. The strip material 11 comes from a constant production line Speed. It runs between two rollers 13, 14 through, the slip-free on opposite sides of the tape material attack and are not driven. The wave of Roller 13 is provided with a pulse generator 15, which is high Angular resolution has numerous pulses per revolution of the shaft supplies. The pulse generator 15 forms a measuring device 16 to determine the incoming winding length.

Mit der Welle des Wickelkernes 10 ist ein Impulsgeber 17 gekoppelt. Dieser liefert bei jeder Umdrehung des Wickelkernes 10 einen Impuls, und zwar einen sehr kurzen Impuls bei dem Nulldurchgang. Der Impulsgeber 17 bildet eine Meßeinrichtung 18 zur Ermittlung der Umdrehungen des Wickelkerns 10.A pulse generator 17 is coupled to the shaft of the winding core 10. This delivers with each revolution of the winding core 10 an impulse, a very short impulse at the zero crossing. The pulse generator 17 forms a measuring device 18 Determination of the revolutions of the winding core 10.

Die Meßeinrichtungen 16 und 18 sind mit einer Auswerteschaltung 19 verbunden. Diese enthält einen Zähler 20, der bis zehn zählt und jeweils nach zehn Eingangsimpulsen einen Ausgangsimpuls erzeugt. Die Ausgangsimpulse des Zählers 20 begrenzen jeweils einen Meßzyklus, der hier zehn Umdrehungen des Wickelkernes ausmacht.The measuring devices 16 and 18 are equipped with an evaluation circuit 19 connected. This contains a counter 20, which counts to ten and generates an output pulse after every ten input pulses. The output pulses of the counter 20 limit each a measuring cycle, here ten revolutions of the winding core matters.

Die Impulse der Meßeinrichtung 16 werden einem Zähler 21 zugeführt, dessen Rücksetzeingang R mit einem ODER-Tor 22 verbunden ist. Der Zähler 21 ist mit einer Halteschaltung 23 versehen. Diese übernimmt den Zählerstand des Zählers 21, wenn an ihrem Latcheingang L ein Steuerimpuls auftritt. Der Latcheingang L ist an den Ausgang des Zählers 20 angeschlossen. Wenn der Zähler 20 am Ende eines Meßzyklus einen Ausgangsimpuls erzeugt, übernimmt die Halteschaltung 23 den Zählerstand des Zählers 21. Dieser wird gleichzeitig über das Signal an seinem Rücksetzeingang R auf Null zurückgesetzt. Der Rücksetzeingang R empfängt über das ODER-Tor 22 das Ausgangssignal des Zählers 20 oder ein Steuersignal, das von dem die Wickelanlage steuernden Schaltschrank 24 kommt.The pulses from the measuring device 16 are fed to a counter 21, whose reset input R is connected to an OR gate 22 is. The counter 21 is provided with a hold circuit 23. This takes over the counter reading of the counter 21, if at their Latch input L a control pulse occurs. The gate entrance L is connected to the output of the counter 20. If the counter 20 generates an output pulse at the end of a measuring cycle, The holding circuit 23 takes over the counter reading of the counter 21. This is simultaneously via the signal at its reset input R reset to zero. The reset input R receives via the OR gate 22, the output signal of the counter 20 or a Control signal from the control cabinet controlling the winding system 24 is coming.

Der Ausgang der Halteschaltung 23 ist über eine Leitung 25 mit einer Recheneinrichtung 26 verbunden. Die Recheneinrichtung 26 ist hier ein PC mit Bildschirm und Tastatur, an dem der Benutzer Werte wie Materialstärke des Bandmaterials 11, Endgröße des Wickels 12 u.dgl. eingeben kann. Die Recheneinrichtung 26 ist mit dem die Wickelanlage steuernden Schaltschrank 24 verbunden.The output of the holding circuit 23 is connected via a line 25 connected to a computing device 26. The computing device 26 Here is a PC with a screen and keyboard that the user can use Values such as material thickness of the strip material 11, final size the winding 12 and the like. can enter. The computing device 26 is connected to the control cabinet 24 controlling the winding installation.

Ein Meßzyklus besteht bei dem vorliegenden Ausführungsbeispiel aus zehn Umdrehungen des Wickelkerns 12. Während des Meßzyklus werden die von dem Impulsgeber 15 erzeugten Impulse im Zähler 21 gezählt. Am Ende des Meßzyklus wird der Zählerstand des Zählers 21 in die Halteschaltung 23 übergeben und von dieser über Leitung 25 an die Recheneinrichtung 26 geliefert. Gleichzeitig beginnt unverzüglich der nächstfolgende Meßzyklus.A measurement cycle exists in the present embodiment from ten revolutions of the winding core 12. During the measuring cycle are the pulses generated by the pulse generator 15 in the counter 21 counted. At the end of the measuring cycle, the counter reading of the counter 21 transferred to the hold circuit 23 and from this Line 25 supplied to the computing device 26. At the same time the next measuring cycle begins immediately.

Die Wickeldichte wird ermittelt nach der Formel WD = Wickellänge * Materialstärke * 4(Enddurchmesser2-Startdurchmesser2) *π und die Stärke DL der eingeschlossenen Luftschicht wird ermittelt nach der Formel DL = (Länge letzter Wickelzyklus) - (Länge vorletzter Wickelzyklus)2 * π *(Lagen pro Wickelzyklus)2 - Materialstärke The winding density is determined using the formula WD = Wrap length * material thickness * 4 (Final diameter 2 -Start diameter 2 ) * π and the thickness DL of the enclosed air layer is determined according to the formula DL = (Length of last winding cycle) - (Length of penultimate winding cycle) 2 * π * (layers per winding cycle) 2 - material thickness

Beide Parameter, Wickeldichte und Stärke der eingeschlossenen Luftschicht können auf dem Bildschirm der Recheneinrichtung 26 angezeigt werden. Diese Parameter können bei der nachfolgenden Verarbeitung des Bandwickels verwertet werden. Beispielsweise wird jeder Bandwickel nach dem Wickelprozeß in einem Glühofen geglüht. Die Dauer des Glühprozesses wird wesentlich von der Menge der eingeschlossenen Luft bestimmt. In Abhängigkeit von der Stärke der eingeschlossenen Luftschicht kann die Dauer des Glühprozesses variiert werden.Both parameters, winding density and strength of the included Air layer can on the screen of the computing device 26th are displayed. These parameters can be used in the following Processing of the tape reel can be recycled. For example After the winding process, each ribbon roll is placed in an annealing furnace annealed. The duration of the annealing process depends essentially on the Determines the amount of trapped air. In dependence of the thickness of the enclosed air layer can affect the duration of the Annealing process can be varied.

Es ist auch möglich, während des Wickelprozesses eine Regelung durchzuführen. So kann beispielsweise die Zugkraft, mit der der Wickelkern 10 angetrieben ist, in Abhängigkeit von dem gemessenen Parameter variiert werden. Während die Bandgeschwindigkeit konstant ist, kann die Zugkraft des Motors verändert werden. Eine Erhöhung der Zugkraft bedeutet eine Verringerung der Lufteinschlüsse.It is also possible to regulate during the winding process perform. For example, the traction with which the Winding core 10 is driven, depending on the measured Parameters can be varied. While the belt speed constant, the tractive force of the motor can be changed. An increase in traction means a decrease in Air pockets.

Eine weitere Möglichkeit der Beeinflussung des eingeschlossenen Luftvolumens besteht darin, den Druck einer Anpreßrolle 28 zu verändern, die von einem Andrückorgan 27, hier einem Zylinder, an der Auflaufstelle des Bandes 11 gegen den Wickel 12 gedrückt wird. Eine Erhöhung der Anpreßkraft bedeutet eine Verringerung des im Wickel einzuschließenden Luftvolumens.Another way of influencing the trapped Air volume is the pressure of a pressure roller 28 to change by a pressure element 27, here a cylinder, pressed against the winding 12 at the run-up point of the band 11 becomes. An increase in the contact pressure means a decrease of the air volume to be enclosed in the wrap.

Claims (6)

Verfahren zur Ermittlung eines auf die Wickeldichte bezogenen Wickelparameters eines Bandwickelvorganges, bei dem ein Bandmaterial (11) auf einen Wickelkern (10) aufgewickelt wird, mit den Schritten Ermittlung der Umdrehungen des Wickelkernes (10), Bestimmen eines Meßzyklus, der einer ausgewählten Anzahl von Umdrehungen des Wickelkernes (10) entspricht, Messen der während eines Meßzyklus aufgespulten Wickellänge des Bandmaterials, Ermittlung des Wickelparameters aus der Wickellänge des Meßzyklus und der Wickellänge eines vorhergehenden Meßzyklus unter Berücksichtigung der Materialstärke. Method for determining a winding parameter relating to the winding density of a strip winding process, in which a strip material (11) is wound onto a winding core (10), with the steps Determining the revolutions of the winding core (10), Determining a measuring cycle which corresponds to a selected number of revolutions of the winding core (10), Measuring the winding length of the strip material wound up during a measuring cycle, Determination of the winding parameter from the winding length of the measuring cycle and the winding length of a previous measuring cycle, taking into account the material thickness. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß als Wickelparameter die Wickeldichte ermittelt wird.A method according to claim 1, characterized in that as Winding parameters the winding density is determined. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß als Wickelparameter die Stärke der zwischen den Windungen des Wickels (12) eingeschlossenen Luftschicht ermittelt wird.A method according to claim 1, characterized in that as Winding parameters the strength of the between the turns of the Winding (12) enclosed air layer is determined. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß in Abhängigkeit von der Größe des ermittelten Wickelparameters eine Regelung in der Weise erfolgt, daß der Wickelparameter auf einen Sollwert geregelt wird, wobei als Stellgröße der Regelung die Anpreßkraft einer Andrückrolle (28) oder die Zugkraft de Wickelkernes (10) verändert wird. Method according to one of claims 1 to 3, characterized in that that determined depending on the size of the Winding parameters are regulated in such a way that the winding parameter is regulated to a target value, whereby the control force is the contact pressure of a pressure roller (28) or the tensile force of the winding core (10) changed becomes. Vorrichtung zur Ermittlung eines auf die Wickeldichte bezogenen Wickelparameters eines Bandwickelvorganges, bei welchem ein Bandmaterial (11) auf einen Wickelkern (10) aufgewickelt wird, mit einer ersten Meßeinrichtung (18) zur Ermittlung der Umdrehungen des Wickelkernes (10) und zur Bestimmung von Meßzyklen, die jeweils einer vorgegebenen Umdrehungszahl entsprechen, einer zweiten Meßeinrichtung (16) zum Messen der während eines Meßzyklus aufgespulten Wickellänge des Bandmaterials, und einer Recheneinrichtung (26), die aus der Wickellänge eines Meßzyklus und der Wickellänge eines vorhergehenden Meßzyklus unter Berücksichtigung der Materialstärke den Wickelparameter berechnet.Device for determining a winding density related Winding parameters of a tape winding process, at which a strip material (11) on a winding core (10) is wound up with a first measuring device (18) Determination of the revolutions of the winding core (10) and Determination of measuring cycles, each of a given Number of revolutions correspond to a second measuring device (16) for measuring those wound up during a measuring cycle Winding length of the strip material, and a computing device (26), which consists of the winding length of a measuring cycle and the Take into account the winding length of a previous measuring cycle of the material thickness calculated the winding parameter. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Recheneinrichtung (26) eine Tabelle enthält, in die für jeden Meßzyklus der errechnete Durchmesser des Wickels und der Absolutwert der Wickellänge eingeschrieben werden.Apparatus according to claim 5, characterized in that the computing device (26) contains a table in which for each measuring cycle the calculated diameter of the winding and the absolute value of the winding length can be entered.
EP00112998A 1999-07-07 2000-06-21 Method and device for determining a reel parameter for a tape winding operation Expired - Lifetime EP1067072B1 (en)

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Application Number Priority Date Filing Date Title
DE19931217A DE19931217C2 (en) 1999-07-07 1999-07-07 Method and device for determining a winding parameter of a tape winding process
DE19931217 1999-07-07

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EP1067072A3 EP1067072A3 (en) 2002-08-28
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WO2019151996A1 (en) 2018-01-30 2019-08-08 Hewlett-Packard Development Company, L.P. Substrate compactness detection

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FI111033B (en) 2001-06-15 2003-05-15 Metso Paper Inc Method for determining the density of a roll
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US9731929B2 (en) 2012-11-09 2017-08-15 Windmöller & Hölscher Kg Method for determining the winding quality of a film roll
WO2019151996A1 (en) 2018-01-30 2019-08-08 Hewlett-Packard Development Company, L.P. Substrate compactness detection
EP3717268A4 (en) * 2018-01-30 2021-06-16 Hewlett-Packard Development Company, L.P. Substrate compactness detection

Also Published As

Publication number Publication date
ATE325764T1 (en) 2006-06-15
DE50012713D1 (en) 2006-06-14
EP1067072B1 (en) 2006-05-10
DE19931217C2 (en) 2003-08-21
EP1067072A3 (en) 2002-08-28
DE19931217A1 (en) 2001-01-25

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