EP0950631B1 - Method and device for winding conical bobbins - Google Patents

Method and device for winding conical bobbins Download PDF

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Publication number
EP0950631B1
EP0950631B1 EP98102591A EP98102591A EP0950631B1 EP 0950631 B1 EP0950631 B1 EP 0950631B1 EP 98102591 A EP98102591 A EP 98102591A EP 98102591 A EP98102591 A EP 98102591A EP 0950631 B1 EP0950631 B1 EP 0950631B1
Authority
EP
European Patent Office
Prior art keywords
motor
bobbin body
traversing thread
speed
bobbin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98102591A
Other languages
German (de)
French (fr)
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EP0950631A1 (en
Inventor
Stefan Kross
Paul Schroers
Hans Raasch
Guido Spix
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volkmann GmbH and Co KG
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Volkmann GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Volkmann GmbH and Co KG filed Critical Volkmann GmbH and Co KG
Priority to DE59809204T priority Critical patent/DE59809204D1/en
Priority to EP98102591A priority patent/EP0950631B1/en
Priority to CZ99468A priority patent/CZ46899A3/en
Priority to JP11033664A priority patent/JP2000034060A/en
Priority to US09/249,688 priority patent/US6196491B1/en
Priority to CNB991022122A priority patent/CN1135202C/en
Publication of EP0950631A1 publication Critical patent/EP0950631A1/en
Priority to HK99105545A priority patent/HK1020330A1/en
Application granted granted Critical
Publication of EP0950631B1 publication Critical patent/EP0950631B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B65H54/10—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers for making packages of specified shapes or on specified types of bobbins, tubes, cores, or formers
    • B65H54/103—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers for making packages of specified shapes or on specified types of bobbins, tubes, cores, or formers forming frusto-conical packages or forming packages on frusto-conical bobbins, tubes, cores or formers
    • 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
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/2821—Traversing devices driven by belts or chains
    • 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
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/2884—Microprocessor-controlled traversing devices in so far the control is not special to one of the traversing devices of groups B65H54/2803 - B65H54/325 or group B65H54/38
    • B65H54/2887—Microprocessor-controlled traversing devices in so far the control is not special to one of the traversing devices of groups B65H54/2803 - B65H54/325 or group B65H54/38 detecting the position of the yarn guide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
    • B65H59/384—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension using electronic means
    • B65H59/385—Regulating winding speed
    • 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
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/22—Distance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B65H2513/11—Speed angular
    • 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 and a device for winding yarn on a conical bobbin, on which the yarn is guided by a traversing thread is deposited, with the coil body by means of a single motor drives, the speed of which is computer-controlled via a computer and control unit depending on the respective laying position of the traversing thread guide and the bobbin diameter is changed to over the bobbin length and thus an essentially constant one over the entire winding process To effect yarn winding speed on the bobbin.
  • WO 92/08664 deals with a method and a device for yarn winding on a cylindrical bobbin, the bobbin by means of a single motor is driven, the speed of which is via a computer and Control unit computer controlled depending on the respective installation position the traversing thread guide and the bobbin diameter is changed, to also over the bobbin length and thus also over the entire A substantially constant yarn winding speed for to effect the bobbin.
  • Friction-driven cross-wound bobbins speed the bobbin synchronized with the movement or the current installation position of the Traversing thread guide changed, for example, to drive the bobbin several, axially distributed over the length of the reel are used synchronously driven one after the other with the movement of the changing thread guide to the yarn at a substantially constant speed wind.
  • the axially arranged over the coil length of the friction roller Rollers are coupled by a and with the traversing thread guide thus in the longitudinal direction of the bobbin reciprocating friction drive element driven, the plurality of friction drive elements in turn again from a single shaft per machine or machine side are driven.
  • Both the multiple storage of the split rollers of the friction roller as well as the bearing of the friction drive elements continuous wave, which is both a translational and rotational movement is complex and therefore expensive. This solution is there principally problematic.
  • the invention has for its object to a method and an apparatus create with or in a simple way problems with the yarn winding on a conical bobbin, the yarn at a constant speed is fed, can be solved.
  • the yarn rewind should do this done as gently as possible, d.
  • H. Torque forces and thread tension peaks should be avoided.
  • the textile-technological properties, such as B. the Twist in the twine or twist should be largely during the entire bobbin trip remain constant and in particular regardless of the installation position. On the mechanical thread storage normally required should be dispensed with.
  • the actual conicity or the Cone angle of the coil body calculated by the computer and control unit become. Because the required change in speed depends on the installation position is of the taper, the exact specification of the taper is important to carry out a suitable speed correction by the computer and control unit to be able to. Especially with a small diameter of the coil body might otherwise deviate between actual taper and actual Default conicity value considerable deviations in the winding speed occur depending on the laying position.
  • the invention further relates to a device according to the preamble of Claim 6.
  • a device is known from DE-A-43 30 647.
  • the device according to the invention is characterized Device for solving the method on which the method according to the invention is based Task in that it contains facilities to the peripheral speed of the coil body on two spaced apart Capture sections and relate them to each other, taking the value the change in this ratio as an additional control variable for the computer-controlled Change in the speed of the single motor of the unit can be fed.
  • Figure 1 shows a winding device with a pivotable mounted coil support frame 1 for storing a conical Bobbin A.
  • the bobbin A is by means of a friction drive roller 2 driven, which in turn by the individual motor 3 assigned to this friction drive roller is driven.
  • the yarn f fed by a conventional yarn feeder 4 at a constant delivery speed is deposited on the bobbin A when the bobbin A rotates by a traversing thread guide 5 driven to and fro over the length of the bobbin.
  • the traversing thread guide 5 is preferably set in motion by means of a drive belt 6 which can be driven alternately in one and in the other direction by a motor 7, preferably a stepping motor.
  • a thread deflecting element 8 is arranged between the feed mechanism 4 and the traversing thread guide 5.
  • a computer and control unit 9 is used for control and coordination of the individual drive units 3, 4 and 7.
  • the delivery engine driving the two delivery rollers 4.1 is, via the manifold 10 of the Computer and control unit 9 controlled with a certain speed driven to a predetermined to achieve constant yarn delivery speed.
  • the laying position of the traversing thread guide 5 is the computer and control unit 9 via further lines of the cable harness 12, e.g. as signals one, not integrated into the engine, which is not shown in detail incremental or absolute position sensor.
  • the motor 7 as a stepper motor such a position sensor can be omitted because the laying position of the traversing thread guide 5 of the control immediately after moving to a reference point position through the position steps it outputs is known.
  • Range of the pivot axis of the coil support frame 1 in FIG. 1 sensor 13 shown in broken lines is provided, which is the angular position which changes during the build-up of the coil ⁇ of the coil support frame 1 is detected.
  • a sensor e.g. a potentiometer can be used where the output voltage is proportional to the angular position ⁇ is.
  • the signal proportional to the angular position ⁇ becomes by means of lines 14 of the computer and control unit 9 supplied, which is based on the associated diameter the control known geometric movement function of the coil frame support 1 is calculated.
  • the sleeve plate flange-mounted sensor 15 can be provided to measure the diameter of the Coil former A according to FIG. 1 in the region of the coil carrier frame 1 .
  • a sensor e.g. a single track optical speed sensor or a Hall sensor in combination can be used with a magnetic magnet wheel where the output frequency is proportional to the speed of the Bobbin A is.
  • the speed proportional Signal is by means of a line 16 of the computer and Control unit 9 supplied, the associated diameter from the speed ratio of the friction roller and coil former A with known, largely constant Drive point calculated on the bobbin.
  • the embodiment according to FIG. 2 differs of the embodiment of Figure 1 in that the Drive of the bobbin A not via a friction drive roller done, but directly individual motor assigned to the individual coil former A 17.
  • the bobbin A is on a freely rotating Support roller 19 supported.
  • the "nominal speed” understood the speed of the motor 17, the one for basically freely selectable, virtual drive point, e.g. is in the middle of the bobbin, for the Computer and control unit 9 the reference point of the speed change depending on the installation position.
  • to Detection of the bobbin diameter is in the range the pivot axis of the coil support frame 1 is a sensor 13 provided, which during the coil build changing angular position ⁇ of the coil support frame recorded and from this in connection with Figure 1 described way determines the bobbin diameter.
  • FIG. 3 shows two winding devices arranged side by side a multi-position machine.
  • the drive of the the two bobbins A are each made by means of friction drive rollers 2, each driven by individual motors 3 become.
  • This Position sensor 21 gives for all winding devices the multi-position machine via the bus 22 Laying position of the traversing thread guide 5 in the respective Computer and control unit 9 to the speed of the respective individual motor 3 and thus the respective friction drive roller 2 to the laying position of the traversing thread guide 5 adapt and thus a constant winding speed to achieve.
  • the bobbin A On the outer circumference of the bobbin A is also one preferably coaxial with the friction drive roller 2 aligned sensor roller 23, whose speed or Circumferential speed via the sensor 24 as an additional Control variable in the not shown in Figure 4 Computer and control unit 9 is entered.
  • the peripheral speed of the bobbin A at two over the length of the bobbin at a distance from each other lying sections and in relation to each other set so that the calculation of the actually present Taper or the cone angle of the coil body A is made possible by the computer and control unit.
  • the Computer and control unit independently the actual one Taper, so that even slight changes in the Taper of the coil body during the coil build-up can be taken into account.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Winding Filamentary Materials (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Garnaufwicklung auf einen konischen Spulenkörper, auf dem das Garn mittels eines Changierfadenführers abgelegt wird, wobei man den Spulenkörper mittels eines Einzelmotors antreibt, dessen Drehzahl über eine Rechner- und Steuereinheit rechnergesteuert in Abhängigkeit von der jeweiligen Verlegeposition des Changierfadenführers und des Spulenkörperdurchmessers verändert wird, um über die Spulenkörperlänge und damit auch über den gesamten Spulvorgang eine im wesentlichen konstante Garnaufwickelgeschwindigkeit auf den Spulenkörper zu bewirken.The invention relates to a method and a device for winding yarn on a conical bobbin, on which the yarn is guided by a traversing thread is deposited, with the coil body by means of a single motor drives, the speed of which is computer-controlled via a computer and control unit depending on the respective laying position of the traversing thread guide and the bobbin diameter is changed to over the bobbin length and thus an essentially constant one over the entire winding process To effect yarn winding speed on the bobbin.

Mit einem derartigen, in der DE-A-43 30 647 beschriebenen Verfahren soll die generell gültige Aufgabe gelöst werden, bei der Herstellung von zylindrischen, aber insbesondere auch konischen Kreuzspulen Spulen guter Qualität mit einer hohen Wickelgeschwindigkeit zu wickeln. With such a method, which is described in DE-A-43 30 647, the generally valid task can be solved in the manufacture of cylindrical, but especially also conical cross-wound bobbins of good quality with a high winding speed.

Die WO 92/08664 behandelt ein Verfahren und eine Vorrichtung zur Garnaufwicklung auf einen zylindrischen Spulenkörper, wobei der Spulenkörper mittels eines Einzelmotors angetrieben wird, dessen Drehzahl über eine Rechner- und Steuereinheit rechnergesteuert in Abhängigkeit von der jeweiligen Verlegeposition des Changierfadenführers und des Spulenkörperdurchmessers verändert wird, um ebenfalls über die Spulenkörperlänge und damit auch über den gesamten Spulvorgang eine im wesentlichen konstante Garnaufwickelgeschwindigkeit für den Spulenkörper zu bewirken.WO 92/08664 deals with a method and a device for yarn winding on a cylindrical bobbin, the bobbin by means of a single motor is driven, the speed of which is via a computer and Control unit computer controlled depending on the respective installation position the traversing thread guide and the bobbin diameter is changed, to also over the bobbin length and thus also over the entire A substantially constant yarn winding speed for to effect the bobbin.

Bei einer in der DE-A-24 58 853 beschriebenen Wickeleinrichtung für konische, durch Friktion angetriebene Kreuzspulen wird die Drehzahl des Spulenkörpers synchron mit der Bewegung bzw. der jeweiligen momentanen Verlegeposition des Changierfadenführers verändert, indem zum Antrieb des Spulenkörpers zum Beispiel mehrere, axial über die Spulenlänge verteilte Rollen benutzt werden, die synchron mit der Bewegung des changierenden Fadenführers nacheinander angetrieben werden, um das Garn mit im wesentlichen gleichbleibender Geschwindigkeit aufzuwickeln. Die axial über die Spulenlänge der Friktionswalze angeordneten Rollen werden durch ein mit dem Changierfadenführer gekoppeltes und sich damit in Längsrichtung des Spulenkörpers hin- und herbewegendes Friktionsantriebselement angetrieben, wobei die Vielzahl der Friktionsantriebselemente ihrerseits wiederum von einer einzigen Welle pro Maschine bzw. Maschinenseite angetrieben werden. Sowohl die Mehrfachlagerung der geteilten Rollen der Friktionswalze wie auch die Lagerung der die Friktionsantriebselemente tragenden, durchgehenden Welle, die sowohl eine translatorische wie auch rotatorische Bewegung ausführt, ist aufwendig und damit kostenintensiv. Diese Lösung ist damit prinzipiell problembehaftet.In a winding device described in DE-A-24 58 853 for conical, Friction-driven cross-wound bobbins speed the bobbin synchronized with the movement or the current installation position of the Traversing thread guide changed, for example, to drive the bobbin several, axially distributed over the length of the reel are used synchronously driven one after the other with the movement of the changing thread guide to the yarn at a substantially constant speed wind. The axially arranged over the coil length of the friction roller Rollers are coupled by a and with the traversing thread guide thus in the longitudinal direction of the bobbin reciprocating friction drive element driven, the plurality of friction drive elements in turn again from a single shaft per machine or machine side are driven. Both the multiple storage of the split rollers of the friction roller as well as the bearing of the friction drive elements continuous wave, which is both a translational and rotational movement is complex and therefore expensive. This solution is there principally problematic.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung zu schaffen, mit dem bzw, mit der in einfacher Weise Probleme bei der Garnaufwicklung auf einen konischen Spulenkörper, dem Garn mit konstanter Geschwindigkeit zugeführt wird, gelöst werden können. Die Garnaufwicklung soll hierbei möglichst garnschonend erfolgen, d. h. Torisionskräfte und Fadenspannungsspitzen sind zu vermeiden. Die textil-technologischen Eigenschaften, wie z. B. die Drehung im Garn oder Zwirn, sollen während der gesamten Spulenreise weitgehend konstant und insbesondere unabhängig von der Verlegeposition bleiben. Auf die üblicherweise notwendigen mechanischen Fadenspeicher soll verzichtet werden.The invention has for its object to a method and an apparatus create with or in a simple way problems with the yarn winding on a conical bobbin, the yarn at a constant speed is fed, can be solved. The yarn rewind should do this done as gently as possible, d. H. Torque forces and thread tension peaks should be avoided. The textile-technological properties, such as B. the Twist in the twine or twist should be largely during the entire bobbin trip remain constant and in particular regardless of the installation position. On the mechanical thread storage normally required should be dispensed with.

Zur Lösung dieser Aufgabe wird für das eingangs behandelte Verfahren vorgeschlagen, daß man die Umfangsgeschwindigkeit des Spulenkörpers an zwei über die Länge des Spulenkörpers im Abstand voneinander liegenden Abschnitten erfaßt und ins Verhältnis zueinander setzt, wobei man dann den Wert der Veränderung dieses Verhältnisses als zusätzliche Steuergröße für die rechnergesteuerte Veränderung der Drehzahl des Einzelmotors für den Spulenkörper verwendet.To solve this problem, it is proposed for the method initially discussed that that the peripheral speed of the bobbin over two the length of the bobbin is spaced from each other and putting them in relation to each other, taking the value of the change this ratio as an additional control variable for the computer-controlled Changing the speed of the single motor used for the bobbin.

Indem man die Umfangsgeschindigkeit des Spulenkörpers an zwei über die Länge des Spulenkörpers im Abstand voneinander liegenden Abschnitten erfaßt und ins Verhältnis zueinander setzt, kann die tatsächlich vorliegende Konizität bzw. der Konuswinkels des Spulenkörpers durch die Rechner- und Steuereinheit berechnet werden. Da die erforderliche verlegepositionsabhängige Drehzahländerung abhängig von der Konizität ist, ist die genaue Vorgabe der Konizität wichtig, um durch die Rechner- und Steuereinheit eine geeignete Drehzahlkorrektur vornehmen zu können. Insbesondere bei kleinem Durchmesser des Spulenkörpers könnten ansonsten bei Abweichungen zwischen tatsächlicher Konizität und tatsächlichem Konizitätsvorgabewert beträchtliche Abweichungen der Aufspulgeschwindigkeit in Abhängigkeit von der Verlegeposition auftreten.By adjusting the circumferential speed of the bobbin to two along the length of the bobbin in spaced sections and ins Relative to each other, the actual conicity or the Cone angle of the coil body calculated by the computer and control unit become. Because the required change in speed depends on the installation position is of the taper, the exact specification of the taper is important to carry out a suitable speed correction by the computer and control unit to be able to. Especially with a small diameter of the coil body might otherwise deviate between actual taper and actual Default conicity value considerable deviations in the winding speed occur depending on the laying position.

Die Erfindung betrifft weiterhin eine Vorrichtung gemäß dem Oberbegriff des Patentanspruchs 6. Eine solche Vorrichtung ist aus der DE-A-43 30 647 bekannt.The invention further relates to a device according to the preamble of Claim 6. Such a device is known from DE-A-43 30 647.

Gegenüber dieser bekannten Vorrichtung kennzeichnet sich die erfindungsgemäße Vorrichtung zur Lösung der auch dem erfindungsgemäßen Verfahren zugrundeliegenden Aufgabe dadurch aus, daß sie Einrichtungen enthält, um die Umfangsgeschwindigkeit des Spulenkörpers an zwei im Abstand voneinander liegenden Abschnitten zu erfassen und ins Verhältnis zueinander zu setzen, wobei der Wert der Veränderung dieses Verhältnisses als zusätzliche Steuergröße für die rechnergesteuerte Veränderung der Drehzahl des Einzelmotors der Einheit zuführbar ist. Compared to this known device, the device according to the invention is characterized Device for solving the method on which the method according to the invention is based Task in that it contains facilities to the peripheral speed of the coil body on two spaced apart Capture sections and relate them to each other, taking the value the change in this ratio as an additional control variable for the computer-controlled Change in the speed of the single motor of the unit can be fed.

Weitere Merkmale der Erfindung sind in den Unteransprüchen behandelt.Further features of the invention are in the subclaims treated.

Die Erfindung wird im folgenden anhand der Zeichnung näher beschrieben.

Figur 1
zeigt in schematischer Darstellung eine zur Durchführung des erfindungsgemäßen Verfahrens geeignete Wickeleinrichtung mit einem einzelmotorisch angetriebenen changierfadenführer, wobei der einzelne Spulenkörper von einer einzelmotorisch angetriebenen Friktionswalze angetrieben wird;
Figur 2
zeigt im wesentlichen eine Anordnung gemäß Fig. 1, wobei der einzelne Spulenkörper unmittelbar von einem zugeordneten Einzelmotor in Drehung versetzt wird;
Figur 3
zeigt in schematischer Darstellung zwei nebeneinander angeordnete Wickeleinrichtungen, wobei die einzelnen Changierfadenführer gemeinsam angetrieben werden;
Figur 4
zeigt einen Friktionsantrieb für einen Spulenkörper mit zugeordneter Sensoreinrichtung zur Erfassung der Konizität des Spulenkörpers.
The invention is described below with reference to the drawing.
Figure 1
shows a schematic representation of a winding device suitable for carrying out the method according to the invention with a single-motor-driven traversing thread guide, the individual bobbin being driven by a single-motor-driven friction roller;
Figure 2
shows essentially an arrangement according to Figure 1, wherein the individual bobbin is set directly in rotation by an associated single motor.
Figure 3
shows a schematic representation of two winding devices arranged side by side, the individual traversing thread guides being driven together;
Figure 4
shows a friction drive for a coil former with an associated sensor device for detecting the taper of the coil former.

Figur 1 zeigt eine Wickeleinrichtung mit einem schwenkbar gelagerten Spulenträgerrahmen 1 zur Lagerung eines konischen Spulenkörpers A. Der Spulenkörper A wird mittels einer Friktionsantriebswalze 2 angetrieben, die ihrerseits von dem dieser Friktionsantriebswalze zugeordneten Einzelmotor 3 angetrieben wird.Figure 1 shows a winding device with a pivotable mounted coil support frame 1 for storing a conical Bobbin A. The bobbin A is by means of a friction drive roller 2 driven, which in turn by the individual motor 3 assigned to this friction drive roller is driven.

Das von einem üblichen Fadenlieferwerk 4 mit konstanter Liefergeschwindigkeit zugeführte Garn f wird bei rotierendem Spulenkörper A von einem über die Länge des Spulenkörpers hin- und hergehend angetriebenen Changierfadenführer 5 auf dem Spulenkörper A abgelegt. Der Changierfadenführer 5 wird vorzugsweise über ein Antriebsband 6 in Bewegung gesetzt, das von einem Motor 7, bevorzugt einem Schrittmotor, abwechselnd in der einen und in der anderen Richtung antreibbar ist. Zwischen dem Lieferwerk 4 und dem Changierfadenführer 5 ist ein Fadenumlenkelement 8 angeordnet.The yarn f fed by a conventional yarn feeder 4 at a constant delivery speed is deposited on the bobbin A when the bobbin A rotates by a traversing thread guide 5 driven to and fro over the length of the bobbin. The traversing thread guide 5 is preferably set in motion by means of a drive belt 6 which can be driven alternately in one and in the other direction by a motor 7, preferably a stepping motor. A thread deflecting element 8 is arranged between the feed mechanism 4 and the traversing thread guide 5.

Eine Rechner- und Steuereinheit 9 dient zur Steuerung und Koordinierung der einzelnen Antriebsaggregate 3, 4 und 7. Der die beiden Lieferwalzen antreibende Lieferwerkmotor 4.1 wird, über die Sammelleitung 10 von der Rechner- und Steuereinheit 9 angesteuert, mit einer bestimmten Drehzahl angetrieben, um eine vorgegebene konstante Garnliefergeschwindigkeit zu bewirken. Ebenso wird der den Changierfadenführer 2 antreibende Motor 7 über Leitungen des Kabelbaums 12 von der Rechner- und Steuereinheit 9 mit einer bestimmten Drehzahl und unterschiedlichen Drehrichtungen angetrieben, um eine vorgegebene Verlegegeschwindigkeit und -position zu bewirken. A computer and control unit 9 is used for control and coordination of the individual drive units 3, 4 and 7. The delivery engine driving the two delivery rollers 4.1 is, via the manifold 10 of the Computer and control unit 9 controlled with a certain speed driven to a predetermined to achieve constant yarn delivery speed. As well the motor 7 driving the traversing thread guide 2 via lines of the wiring harness 12 from the computer and Control unit 9 with a certain speed and different Direction of rotation driven to a predetermined To effect laying speed and position.

Um zu erreichen, daß das Garn f mit im wesentlichen gleichbleibender Aufspulgeschwindigkeit und damit gleichbleibender Fadenspannung auf den konischen Spulenkörper A aufgewickelt wird, ist es notwendig, daß dieser in Abhängigkeit von der Verlegeposition des Changierfadenführers 5 und in Abhängigkeit des Durchmessers des Spulenkörpers an der Abtriebsposition mit jeweils unterschiedlicher Drehzahl angetrieben wird.To achieve that the yarn f with essentially constant winding speed and thus constant thread tension on the conical Bobbin A is wound, it is necessary that this depends on the laying position of the traversing thread guide 5 and depending on the Diameter of the coil body at the output position is driven at different speeds.

Die Verlegeposition des Changierfadenführers 5 wird der Rechner- und Steuereinheit 9 über weitere Leitungen des Kabelbaums 12 mitgeteilt, z.B. als Signale eines, im einzelnen nicht näher dargestellten, im Motor integrierten inkrementalen oder absoluten Positionssensors. Bei einer bevorzugten Ausbildung des Motors 7 als Schrittmotor kann ein derartiger Positionssensor entfallen, da die Verlegeposition des Changierfadenführers 5 der Steuerung nach dem Anfahren einer Referenzpunktposition unmittelbar durch die von ihr ausgegebenen Positionsschritte bekannt ist.The laying position of the traversing thread guide 5 is the computer and control unit 9 via further lines of the cable harness 12, e.g. as signals one, not integrated into the engine, which is not shown in detail incremental or absolute position sensor. In a preferred embodiment of the motor 7 as a stepper motor such a position sensor can be omitted because the laying position of the traversing thread guide 5 of the control immediately after moving to a reference point position through the position steps it outputs is known.

Zur Erfassung des Durchmessers des Spulenkörpers A ist im Bereich der Schwenkachse des Spulenträgerrahmens 1 ein in Figur 1 strichliniert dargestellter Sensor 13 vorgesehen, der die sich während des Spulenaufbaus verändernde Winkelstellung β des Spulenträgerrahmens 1 erfaßt.To detect the diameter of the bobbin A is in Range of the pivot axis of the coil support frame 1 in FIG. 1 sensor 13 shown in broken lines is provided, which is the angular position which changes during the build-up of the coil β of the coil support frame 1 is detected.

Als Sensor kann z.B. ein Potentiometer verwendet werden, wobei die Ausgangsspannung proportional zur Winkelstellung β ist. Das der Winkelstellung β proportionale Signal wird mittels Leitungen 14 der Rechner- und Steuereinheit 9 zugeführt, die den zugehörigen Durchmesser anhand der der Steuerung bekannten geometrischen Bewegungsfunktion des Spulenrahmenträgers 1 errechnet. As a sensor e.g. a potentiometer can be used where the output voltage is proportional to the angular position β is. The signal proportional to the angular position β becomes by means of lines 14 of the computer and control unit 9 supplied, which is based on the associated diameter the control known geometric movement function of the coil frame support 1 is calculated.

Alternativ kann zur Erfassung des Durchmessers des Spulenkörpers A gemäß Figur 1 im Bereich des Spulenträgerrahmens 1 ein an einen im einzelnen nicht näher dargestellten Hülsenteller angeflanschter Sensor 15 vorgesehen werden, wobei der Hülsenteller seinerseits derart in Kraft- und Formschluß mit dem Spulenkörper A erfasst werden kann. Als Sensor kann z.B. ein einspuriger optischer Drehzahlsensor oder ein Hall-Sensor in Kombination mit einem magnetischen Polrad verwendet werden, wobei die Ausgangsfrequenz proportional zur Drehzahl des Spulenkörpers A ist. Das der Drehzahl proportionale Signal wird mittels einer Leitung 16 der Rechner- und Steuereinheit 9 zugeführt, die den dazugehörigen Durchmesser aus dem Drehzahlverhältnis von Friktionswalze und Spulenkörper A bei bekanntem, weitgehend konstantem Antriebspunkt auf dem Spulenkörper errechnet.Alternatively, to measure the diameter of the Coil former A according to FIG. 1 in the region of the coil carrier frame 1 one not in detail to one illustrated sleeve plate flange-mounted sensor 15 be provided, the sleeve plate itself thus in positive and positive engagement with the bobbin A can be recorded. As a sensor e.g. a single track optical speed sensor or a Hall sensor in combination can be used with a magnetic magnet wheel where the output frequency is proportional to the speed of the Bobbin A is. The speed proportional Signal is by means of a line 16 of the computer and Control unit 9 supplied, the associated diameter from the speed ratio of the friction roller and coil former A with known, largely constant Drive point calculated on the bobbin.

Die zur Erzielung einer gleichbleibenden Aufspulgeschwindigkeit erforderliche Veränderung der Drehzahl des die Friktionsantriebswalze 2 antreibenden Antriebsmotors 3 erfolgt durch die Rechner- und Steuereinheit 9 über Leitung 11 in Abhängigkeit von dem vorgenannten Einflußgrößen.To achieve a constant winding speed required change of Speed of the friction drive roller 2 driving Drive motor 3 is done by the computer and Control unit 9 via line 11 depending on the aforementioned influencing factors.

Die Ausführungsform gemäß Figur 2 unterscheidet sich von der Ausführungsform gemäß Figur 1 dadurch, daß der Antrieb des Spulenkörpers A nicht über eine Friktionsantriebswalze erfolgt, sondern über einen unmittelbar dem einzelnen Spulenkörper A zugeordneten Einzelmotor 17. Der Spulenkörper A ist dabei auf einer frei rotierenden Stützwalze 19 abgestützt. The embodiment according to FIG. 2 differs of the embodiment of Figure 1 in that the Drive of the bobbin A not via a friction drive roller done, but directly individual motor assigned to the individual coil former A 17. The bobbin A is on a freely rotating Support roller 19 supported.

In diesem Fall erfolgt eine Anpassung der Drehzahl des Motors 17 über Leitungen 18 in zweifacher Hinsicht:In this case, the speed of the Motors 17 via lines 18 in two ways:

Durch den direkten Antrieb des Spulenkörpers A muß mit wachsendem Spulenkörperdurchmesser die "Nenndrehzahl" des Motors 17 verringert werden. Dabei wird als "Nenndrehzahl" die Drehzahl des Motors 17 verstanden, die für einen prinzipiell frei wählbaren, virtuellen Antriebspunkt, z.B. in der Mitte des Spulenkörpers vorliegt, der für die Rechner- und Steuereinheit 9 der Bezugspunkt der Drehzahlveränderung in Abhängigkeit von der Verlegeposition ist. Zur Erfassung des Spulenkörperdurchmessers ist im Bereich der Schwenkachse des Spulenträgerrahmens 1 ein Sensor 13 vorgesehen, der die sich während des Spulenaufbaus verändernde Winkelstellung β des Spulenträgerrahmens erfaßt und hieraus in der in Verbindung mit Figur 1 beschriebenen Weise den Spulenkörperdurchmesser ermittelt.Due to the direct drive of the bobbin A must increasing coil body diameter the "nominal speed" of the Motors 17 are reduced. The "nominal speed" understood the speed of the motor 17, the one for basically freely selectable, virtual drive point, e.g. is in the middle of the bobbin, for the Computer and control unit 9 the reference point of the speed change depending on the installation position. to Detection of the bobbin diameter is in the range the pivot axis of the coil support frame 1 is a sensor 13 provided, which during the coil build changing angular position β of the coil support frame recorded and from this in connection with Figure 1 described way determines the bobbin diameter.

Die zwecks Kompensation der unterschiedlichen Spulendurchmesser der konischen Spule erforderliche Drehzahlveränderung in Abhängigkeit von der Verlegeposition und in Abhängigkeit von dem des Durchmesser des Spulenkörpers wird in der in Verbindung mit Figur 1 beschriebenen Weise bezogen auf den virtuellen Antriebspunkt ermittelt.To compensate for the different coil diameters the conical coil required speed change depending on the installation position and depending on that of the diameter of the bobbin is in the manner described in connection with Figure 1 determined based on the virtual drive point.

Zur Anpassung der Drehzahl des Motors 18 über die Leitungen 18 überlagert die Rechner- und Steuereinheit 9 beide Einflußgrößen.To adjust the speed of the motor 18 via the lines 18 overlays the computer and control unit 9 both Predictors.

Figur 3 zeigt zwei nebeneinander angeordnete Wickeleinrichtungen einer Vielstellenmaschine. Der Antrieb der beiden Spulenkörper A erfolgt jeweils mittels Friktionsantriebswalzen 2, die jeweils von Einzelmotoren 3 angetrieben werden. Pro Stelle ist eine Rechner- und Steuereinrichtung 9 vorgesehen, der jeweils die Signale eines pro Stelle erforderlichen Sensors 13 zur Erfassung des Durchmessers des Spulenkörpers A über Leitungen 14 zugeleitet werden und die jeweils die Motoren 3 über Leitungen 11 in der Drehzahl verändert. Abweichend von dem System gemäß Figur 1 werden die den beiden Wickeleinrichtungen zugeordneten Changierfadenführer 5 gemeinsam über eine Changierfadenführerstange 20 alternierend angetrieben. Bei einem derartigen System braucht nur die Verlegeposition eines Changierfadenführers 5 erfaßt zu werden, und zwar vorzugsweise mittels eines in Figur 3 nur schematisch dargestellten Wege- und Positionssensors 21. Dieser Positionssensor 21 gibt für sämtliche Wickeleinrichtungen der Vielstellenmaschine über die Sammelleitung 22 die Verlegeposition der Changierfadenführer 5 in die jeweilige Rechner- und Steuereinheit 9 ein, um die Drehzahl des jeweiligen Einzelmotors 3 und damit der jeweiligen Friktionsantriebswalze 2 an die Verlegeposition des Changierfadenführers 5 anzupassen und somit eine konstante Aufspulgeschwindigkeit zu erzielen.FIG. 3 shows two winding devices arranged side by side a multi-position machine. The drive of the the two bobbins A are each made by means of friction drive rollers 2, each driven by individual motors 3 become. There is one computer and control device per position 9 provided, each of the signals of a required sensor 13 per location for detecting the Diameter of the bobbin A supplied via lines 14 and each of the motors 3 via lines 11 changed in speed. Different from the system according to Figure 1, the two winding devices assigned traversing thread guide 5 together via a Traversing thread guide rod 20 driven alternately. With such a system, only the installation position is required a traversing thread guide 5, and preferably only schematically in FIG. 3 shown displacement and position sensor 21. This Position sensor 21 gives for all winding devices the multi-position machine via the bus 22 Laying position of the traversing thread guide 5 in the respective Computer and control unit 9 to the speed of the respective individual motor 3 and thus the respective friction drive roller 2 to the laying position of the traversing thread guide 5 adapt and thus a constant winding speed to achieve.

Bei der Einrichtung gemäß Figur 4 wird der Spulenkörper A von einer mittels eines Einzelmotors 3 angetriebenen Friktionsantriebswalze 2 angetrieben, die, wie im übrigen auch bei den Ausführungsformen gemäß den Figuren 1 und 3, mit einem Friktionsbelag 2.1 ausgerüstet sein kann.In the device according to Figure 4, the coil body A driven by a single motor 3 Friction drive roller 2, which, as in the rest also in the embodiments according to the figures 1 and 3, be equipped with a friction lining 2.1 can.

An dem Außenumfang des Spulenkörpers A liegt zusätzlich eine vorzugsweise gleichachsig zur Friktionsantriebswalze 2 ausgerichtete Sensorwalze 23 an, deren Drehzahl bzw. Umfangsgeschwindigkeit über den Sensor 24 als zusätzliche Steuergröße in die in Figur 4 nicht dargestellte Rechner- und Steuereinheit 9 eingegeben wird. Mit einem derartigen System kann man die Umfangsgeschwindigkeit des Spulenkörpers A an zwei über die Länge des Spulenkörpers im Abstand voneinander liegenden Abschnitten erfassen und ins Verhältnis zueinander setzen, so daß die Berechnung der tatsächlich vorliegenden Konizität bzw. des Konuswinkels des Spulenkörpers A durch die Rechner- und Steuereinheit möglich wird.On the outer circumference of the bobbin A is also one preferably coaxial with the friction drive roller 2 aligned sensor roller 23, whose speed or Circumferential speed via the sensor 24 as an additional Control variable in the not shown in Figure 4 Computer and control unit 9 is entered. With such a System one can see the peripheral speed of the bobbin A at two over the length of the bobbin at a distance from each other lying sections and in relation to each other set so that the calculation of the actually present Taper or the cone angle of the coil body A is made possible by the computer and control unit.

Mit einer Einrichtung gemäß Figur 4 ermittelt die Rechner- und Steuereinheit selbständig die tatsächlich vorliegende Konizität, so daß selbst geringfügige Veränderungen der Konizität des Spulenkörpers während des Spulenaufbaus berücksichtigt werden können.With a device according to Figure 4, the Computer and control unit independently the actual one Taper, so that even slight changes in the Taper of the coil body during the coil build-up can be taken into account.

Claims (11)

  1. A process for winding yarn onto a conical bobbin body (1) on which the yarn is laid by means of a traversing thread guide (5), in which the bobbin body (A) is driven by means of a single motor (3; 17) whereof the speed of rotation is altered in computer-controlled manner by way of a computer and control unit (9) in dependence on the respective laying position of the traversing thread guide and the diameter of the bobbin body in order to bring about a substantially constant speed of winding of the yarn onto the bobbin body over the length of the bobbin body and hence also over the entire winding procedure, characterised in that the peripheral speed of the bobbin body is detected at two sections (d1, d2) lying spaced from one another over the length of the bobbin body and their ratio to one another taken and the value of the alteration in this ratio is used as an additional control variable for the computer-controlled alteration in the speed of rotation of the individual motor.
  2. A process according to Claim 1, characterised in that the traversing thread guide (5) is driven with a single motor in alternating manner by means of a motor (7), preferably a stepping motor, whereof the switching pulses are input, as a control variable for the laying position of the traversing thread guide, to the unit (9) which for its part controls the speed of rotation of the motor (3, 17) in dependence on the laying position of the traversing thread guide.
  3. A process according to Claim 1, characterised in that the individual bobbin body (A) is driven at its periphery by means of a friction drive roller (2) which for its part is made to rotate by the individual motor (3).
  4. A process according to Claim 1, characterised in that the individual bobbin body (A) is made to rotate directly by the individual motor (17), and in that during the winding procedure the diameter of the bobbin body is detected and the diameter value that is determined is input to the computer and control unit for the purpose of adjusting the speed of rotation of the individual motor to the increasing bobbin diameter.
  5. A process according to Claim 1, characterised in that, in the case of a four-position machine, the traversing thread guides (5) are driven together by means of a traversing thread guide rod (20) which is driven by a motor, preferably a stepping motor, and the laying position of at least one of the traversing thread guides is detected by means of a position sensor (21) whereof the position signals are input, as a control variable for the laying position of the traversing thread guide, to the unit (9) which for its part controls the speed of rotation of the motor (7) in dependence on the laying position of the traversing thread guide.
  6. A device for carrying out the process according to Claim 1, containing:
    1) a pivotal bobbin carrier frame (1) for bearing a conical bobbin body (A);
    2) a single motor (3 or 17) for providing a single drive to the respective bobbin body (A);
    3) a traversing thread guide (5) having a means (7 or 21) for detecting the respective laying position of the traversing thread guide over the length of the bobbin body (A);
    4) a sensor for detecting the diameter of the bobbin body,
    5) a computer and control unit (9) in which the respective laying position of the traversing thread guide and the bobbin body diameter are processed as control variables for an alteration to the speed of rotation of the individual motor (3 or 17) and are fed to the individual motor, characterised in that it
    6) contains means of detecting the peripheral speed of the bobbin body at two sections (d1, d2) lying spaced from one another and of taking the ratio thereof to one another, in which the value of the alteration in this ratio can be fed as an additional control variable for the computer-controlled alteration in the speed of rotation of the individual motor of the unit (9).
  7. A device according to Claim 6, characterised in that for the purpose of driving the traversing thread guide (5) in alternating manner a motor (7), in particular a stepping motor, is provided whereof the switching pulses are input, as a control variable for the laying position of the traversing thread guide, to the unit (9).
  8. A device according to Claim 7, characterised in that the speed of the translational movement of the traversing thread guide (5) may be altered in dependence on its laying position such that the speed of movement is at a maximum in the region of that bobbin flank of the bobbin body (A) which has the smaller diameter and at a minimum in the region of the other bobbin flank.
  9. A device according to Claim 6, characterised in that for the purpose of driving each individual bobbin body (A) it includes a friction drive roller (2) which for its part is made to rotate by the individual motor (3).
  10. A device according to Claim 6, characterised in that associated with each individual bobbin body (A) for the purpose of driving it directly is an individual motor (17), and in that for the purpose of detecting the increasing diameter of the bobbin body during the winding procedure it has a sensor (13) from which the diameter of the bobbin body that is determined is input to the computer and control unit (9) for the purpose of adjusting the speed of rotation of the individual motor (17) to the increasing bobbin diameter.
  11. A device according to Claim 6, characterised in that, in the case of a four-position machine, a plurality of traversing thread guides (5) may be driven together, and in that associated with at least one of the traversing thread guides (5) is a position sensor (21) connected to the unit (9), for detecting the laying position of this traversing thread guide.
EP98102591A 1998-02-14 1998-02-14 Method and device for winding conical bobbins Expired - Lifetime EP0950631B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE59809204T DE59809204D1 (en) 1998-02-14 1998-02-14 Method and device for winding yarn onto a conical bobbin
EP98102591A EP0950631B1 (en) 1998-02-14 1998-02-14 Method and device for winding conical bobbins
CZ99468A CZ46899A3 (en) 1998-02-14 1999-02-11 Process and apparatus for thread winding and conical bobbin body
US09/249,688 US6196491B1 (en) 1998-02-14 1999-02-12 Method and device for winding yarn onto a conical spool body
JP11033664A JP2000034060A (en) 1998-02-14 1999-02-12 Method and device for taking up thread on conical spool
CNB991022122A CN1135202C (en) 1998-02-14 1999-02-14 Method and apparatus for winding yarn onto conic drum
HK99105545A HK1020330A1 (en) 1998-02-14 1999-11-29 Method and device for winding the yarn onto the cone bobbin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98102591A EP0950631B1 (en) 1998-02-14 1998-02-14 Method and device for winding conical bobbins

Publications (2)

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EP0950631A1 EP0950631A1 (en) 1999-10-20
EP0950631B1 true EP0950631B1 (en) 2003-08-06

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EP98102591A Expired - Lifetime EP0950631B1 (en) 1998-02-14 1998-02-14 Method and device for winding conical bobbins

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US (1) US6196491B1 (en)
EP (1) EP0950631B1 (en)
JP (1) JP2000034060A (en)
CN (1) CN1135202C (en)
CZ (1) CZ46899A3 (en)
DE (1) DE59809204D1 (en)
HK (1) HK1020330A1 (en)

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EP0950631A1 (en) 1999-10-20
HK1020330A1 (en) 2000-04-14
CZ46899A3 (en) 1999-09-15
CN1225890A (en) 1999-08-18
CN1135202C (en) 2004-01-21
DE59809204D1 (en) 2003-09-11
US6196491B1 (en) 2001-03-06
JP2000034060A (en) 2000-02-02

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