EP0556212B1 - Aufbau eines fadenwickels - Google Patents

Aufbau eines fadenwickels Download PDF

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Publication number
EP0556212B1
EP0556212B1 EP91918586A EP91918586A EP0556212B1 EP 0556212 B1 EP0556212 B1 EP 0556212B1 EP 91918586 A EP91918586 A EP 91918586A EP 91918586 A EP91918586 A EP 91918586A EP 0556212 B1 EP0556212 B1 EP 0556212B1
Authority
EP
European Patent Office
Prior art keywords
package
actuator
thread
traversing
rotation
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
EP91918586A
Other languages
English (en)
French (fr)
Other versions
EP0556212B2 (de
EP0556212A1 (de
Inventor
James Edward Freeman
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Individual
Original Assignee
Individual
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
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Application filed by Individual filed Critical Individual
Priority to EP97112822A priority Critical patent/EP0808791B1/de
Publication of EP0556212A1 publication Critical patent/EP0556212A1/de
Application granted granted Critical
Publication of EP0556212B1 publication Critical patent/EP0556212B1/de
Publication of EP0556212B2 publication Critical patent/EP0556212B2/de
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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
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/2818—Traversing devices driven by rod
    • 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
    • B65H54/2827—Traversing devices with a pivotally mounted guide arm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/38—Arrangements for preventing ribbon winding ; Arrangements for preventing irregular edge forming, e.g. edge raising or yarn falling from the edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • 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
    • 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
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/31—Tensile forces
    • 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

  • This invention relates to the building of thread packages for textile yarns and other threads.
  • Textile threads are wound on to packages following their production or after some processing step, or are rewound from another package to build a package with better take-off characteristics for use e.g. in a knitting machine or to produce special packages e.g. for dyeing.
  • package winding procedure or "build" producing packages suited to particular types of thread or for particular purposes.
  • cross-winding in which the package is rotated and the thread is fed from the side and distributed axially along the package by a traverse arrangement which may comprise a reciprocating thread guide or a helically grooved roll, the thread being reciprocated by contact with the sides of the groove, and overend winding as by a ring-and-traveller arrangement or a flyer.
  • a traverse arrangement which may comprise a reciprocating thread guide or a helically grooved roll, the thread being reciprocated by contact with the sides of the groove, and overend winding as by a ring-and-traveller arrangement or a flyer.
  • the present invention is concerned particularly, but not necessarily exclusively, with cross winding techniques which themselves fall into a number of different kinds of which the most important are random and precision winding.
  • random winding the package is rotated by frictional contact with a drive roller acting directly on the surface of the package, which therefore has the same surface speed as the driver roller, usually constant, and hence a declining rotational speed as the package increases in diameter.
  • precision winding the rotational speed of the package is constant since it is its support not its surface that is driven. Hence the angular wrap of the thread around the package is not affected by the diameter of the package, but the helix angle of the thread on the package surface decreases as the package grows.
  • the Schweiter DIGICONE uses a precision winding technique coupled with a microprocessor controlled arrangement that alters the winding ratio (number of revolutions of the package for each traversing cycle) progressively in small steps throughout the build to mimic the characteristics of the random wind. Because the winding ratio can be precisely related to the winding speed at each step, patterning can be avoided altogether.
  • the DIGICONE thus produces yet a different type of build from previously conventional types and is claimed to produce substantially better packages with better unwinding characteristics; it can moreover be programmed to build different package shapes.
  • the DIGICONE in addressing only one problem, namely that of patterning, by combining the techniques of random and precision winding, fails to deal with other problems which affect the way in which thread unwinds from a package or is stored on the package - different tensions at different places along the yarn can result in strains which manifest themselves as faults in fabric woven or knitted from the package.
  • the present invention facilitates new approaches to thread winding which produce improved packages of the conventional or even of the DIGICONE (RTM) types.
  • the invention comprises a method for building thread on a rotating package by traversing the point of application of the thread axially relatively to the package, characterised by controlling package build by controlling the relationship between package rotation and traversing rate by a feedback arrangement controlling package rotation.
  • the relationship may be controlled in accordance with the instantaneous position of the said point of application, and/or may be controlled by a function of the progress of the build.
  • the thread may be traversed relatively to the package by a thread reciprocating guide driven by an electronically controlled actuator.
  • a thread reciprocating guide driven by an electronically controlled actuator.
  • Said actuator may comprise a linear actuator, which may reciprocate a thread guide, or a rotary actuator.
  • a rotary actuator may be used to produce a linear reciprocation, as of a thread guide, through a rotary to linear convertor, or it may be used to drive a grooved roll thread distibutor in rotation, or to drive the package or to impose a perturbation on the rotation of such a distributor or the package.
  • the actuator may in any event comprise a servo actuator.
  • package rotation may be predetermined while traverse rate 15 controlled, or traverse rate may be predetermined while package rotation is controlled - or both traverse rate and package rotation may be controlled.
  • the invention in another aspect, comprises a method for building thread on a rotating package by traversing the point of application of the thread axially relatively to the package, comprising dynamically controlling the thread tension within each traverse stroke. This can be in addition to or alternative to the dynamic control of package rotation and/or traverse rate.
  • Package rotation and thread traversing may be effected by independent drive means, or by a single drive means acting through a transmission arrangement which can controllingly vary the relationship between the package rotation and the traversing rate.
  • the invention also comprises apparatus for building thread on a package comprising a rotary package support and a thread traversing arrangement and control means for the relationship between package rotation and traversing rate adapted to control the same dynamically within each traversing stroke.
  • Said control means may comprise variable sensing means sensing a variable affecting the said relationship and adjusting means adjusting the said relationship so as to counteract any deviation of said variable from a predetermined value - which might be a constant value or a value which is itself dependent upon another variable such for example as the progress of the build.
  • Said control means may comprise digital information processing means.
  • Said control means may comprise an electrically controlled actuator, which may be a linear or a rotary actuator and which may be of a type (which includes stepper motors and linear stepper actuators) in which a given input signal is reflected in a predetermined response regardless (at least in the circumstances) of operational loadings to which the actuator is subjected, or may be a servo actuator in which an error signal in a feedback loop adjusts the actuator's response to counteract operational loadings to which the actuator is subjected.
  • the error signal may be derived from measurement of a variable of the system as a whole or of the actuator per se such as may be derived from measurement of the operating power supplied to the actuator.
  • Figures 1, 4 and 5 illustrate apparatus for building thread 11 on a package 12 comprising a rotary package support 13 and a thread traversing arrangement 14.
  • the support 13 comprises a spindle which is driven directly by a motor 15.
  • the thread traversing arrangement 14 comprises a thread distributing finger 16 on a rod 17 which is connected directly to a linear actuator 18 which reciprocates the rod 17 in response to signals from a control arrangement 19.
  • Figure 4 illustrates apparatus in which the rotary package support 43 comprises a cradle 43a holding a free-running spool 43b on which the package 12 is built resting on a driving roll 43c which is on a shaft 43d rotated by a motor 45.
  • the thread traversing arrangement 14 comprises a thread distributing finger 16 which is reciporocated on a track 47 by a rotary actuator 48 which has an arm 48a engaging the finger 16 which executes an angular oscillation in response to signals from a control arrangement 49.
  • Figure 5 illustrates apparatus in which the thread 11 tension is dynamically controlled within each traverse stroke by a tension regulator 51 comprising a thread deflecting arrangement of two fixed (51a) and one movable (51b) guides, the movable guide being moved by a linear actuator 52 in response to signals from a controller 59.
  • the package 12 is supported and driven in rotation as described with reference to Figure 4.
  • the controller 19 of Figure 1 comprises a digital microprocessor which controls the output of driving signals, which may be in the form of pulses or a d.c. potential to the linear actuator 18 according to the type of linear actuator used.
  • the controller 19 may also control the output of driving signals to the package-rotating motor 15, or this may be rotated at constant speed by connection to an independent energising source speed information being input to the controller 19 e.g. as a signal representative of the frequency of the energising current or from a shaft encoder (not shown).
  • the controller 19 can be programmed to control dynamically the reciprocation of the thread guide 16 within each traverse stroke.
  • Figure 2 illustrates one possibility for such control; in the Figure, three graphs of traverse rate against thread guide displacement at three different package diameters are shown.
  • the traverse speed increases with increasing package diameter so that the winding ratio (the number of package revolutions for each cycle of the traverse guide, i.e. for each two traverse strokes) decreases as the build progresses.
  • Figure 1 also illustrates a tension sensor 21 sensing tension in the thread 11. It is apparent that as the traverse guide 16 reciprocates the thread the length of thread from the guide 16 back to the guide eye 22 which is the last encountered thread restraint before the wind-up arrangement, will vary according to the position of the traverse guide in the stroke, being longer when the guide 16 is at the ends of the stroke than in the middle. This will result in a tension difference in the yarn as between these positions which may affect the way the thread is wound on to the package and which may cause the package to be wound more softly in the middle than at the ends.
  • One way is by a feedback arrangement acting on the linear actuator 18 to vary the traverse rate so as to maintain the tension sensed by sensor 21 substantially constant. Another is for the controller 19 to alter the traverse rate in programmed fashion.
  • controller to speed up the motor 15 (which can also comprise an electrically controlled rotary actuator for this purpose) to absorb the extra yarn fed per unit time in the middle of the stroke, possible at the same time increasing the traverse rate to keep the winding angle sensibly constant throughout the traverse.
  • motor 15 which can also comprise an electrically controlled rotary actuator for this purpose
  • control arrangement 49 comprises a computer 49a controlled electronic gear box 49b controlling the rate of operation of the rotary actuator 38 in dependence on the rate of operation of the drive motor 35 and various other variables such as package diameter (sensed by a pivoting finger 61) and thread tension sensed by sensor 21 as in Figure 1.
  • Figure 5 illustrates a more or less conventional package random winding arrangement in which the only controlled variable is thread tension which is controlled in accordance with the instantaneous position of the thread guide 56 sensed by a position transducer 57, which supplies a position signal to the controller 59 that is programmed with a tension regime for the traverse strokes and which controls the linear actuator 52 which, in this instance, will be of a type from which an indication can be obtained of the tension in the thread that it is in fact tensioning - this may be done by analysing the energizing current in some types.
  • a separate tension sensing device may be used in a feedback loop.
  • the involvement of digital information processing means in the apparatus can be used advantageously in connection with other aspects of the winding operation, for example in the control of doffing equipment and in thread failure or fault sensing, as well as in performance monitoring and recording.
  • a rotary actuator can be used as a drive motor for a feed package in the same way and with the same kinds and aims of control as in regard to the take-up package, and such may be used as the sole actuator or in combination with a linear traverse actuator or a rotary take-up package driving actuator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Winding Filamentary Materials (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)

Claims (21)

  1. Verfahren zum Aufbauen eines Fadens (11) auf einer rotierenden Wicklung (12) durch axiales Verschieben des Punktes des Anlegens des Fadens relativ zur Wicklung, gekennzeichnet durch Steuern des Aufbaus der Wicklung durch Steuern der Beziehung zwischen der Drehung der Wicklung und der Geschwindigkeit der Verschiebung durch eine die Drehung der Wicklung steuernde Rückführungsanordnung.
  2. Verfahren nach Anspruch 1, welches die Steuerung der Beziehung zwischen der Drehung der Wicklung und der Geschwindigkeit der Verschiebung in Übereinstimmung mit der augenblicklichen Stellung des Anlegepunkts aufweist.
  3. Verfahren nach Anspruch 1 oder Anspruch 2, bei welchem die Beziehung auch durch eine Funktion des Fortschritts des Aufbaus gesteuert wird.
  4. Verfahren nach einem der Ansprüche 1 bis 3, bei welchem der Faden (11) relativ zur Wicklung (12) verschoben wird durch eine hin- und hergehende Fadenführung (16), die durch ein elektronisch gesteuertes Betätigungsglied (18,48) angetrieben wird.
  5. Verfahren nach Anspruch 4, bei welchem das Betätigungsglied ein lineares Betätigungsglied (18) aufweist.
  6. Verfahren nach Anspruch 4, bei welchem das Betätigungsglied ein Dreh-Betätigungsglied (48) aufweist.
  7. Vefahren nach Anspruch 6, bei welchem das Dreh-Betätigungsglied (48) eine lineare Hin- und Herbewegung durch einen Dreh/Linear-Wandler (48a) erzeugt.
  8. Verfahren nach Anspruch 4 bis 7, bei welchem das Betätigunsglied (18,48) ein Servo-Betätigungsglied aufweist.
  9. Verfahren nach einem der Ansprüche 1 bis 8, bei welchem die Beziehung in Übereinstimmung mit der Fadenspannung gesteuert wird.
  10. Verfahren nach einem der Ansprüche 1 bis 8, bei welchem die Geschwindigkeit der Verschiebung vorbestimmt wird und die Drehung der Wicklung gesteuert wird.
  11. Verfahren nach einem der Ansprüche 1 bis 8, bei welchem sowohl die Geschwindigkeit der Verschiebung als auch die Drehung der Wicklung gesteuert werden.
  12. Verfahren nach einem der Ansprüche 1 bis 11, bei welchem die Drehung der Wicklung und die Verschiebung des Fadens durch unabhängige Antriebsmittel (18,48,45) bewirkt werden.
  13. Verfahren nach einem der Ansprüche 1 bis 12, bei welchem die Drehung der Wicklung und die Verschiebung des Fadens durch ein einziges Antriebsmittel (45) bewirkt werden, welches über eine Übertragungsanordnung (49b) wirkt, die steuernd die Beziehung zwischen der Drehung der Wicklung und der Geschwindigkeit der Verschiebung verändern kann.
  14. Vorrichtung zum Aufbauen eines Fadens (11) auf einer Wicklung (12) mit einem drehbaren Wicklungsträger (13) und einer Fadenverschiebungsanordnung (14), welche den Punkt des Anlegens des Fadens (11) relativ zur Wicklung (12) axial verschiebt, gekennzeichnet durch Steuermittel (19), die den Aufbau der Wicklung steuern durch Steuern der Beziehung zwischen der Drehung der Wicklung und der Geschwindigkeit der Verschiebung durch eine die Drehung der Wicklung steuernde Rückführungsanordnung.
  15. Vorrichtung nach Anspruch 14, wobei die Steuermittel (19) digitale Informationsverarbeitungsmittel aufweisen.
  16. Vorrichtung nach Anspruch 14 oder Anspruch 15, wobei die Steuermittel (19) ein elektronisch gesteuertes Betätigungsglied (18,48) aufweisen.
  17. Vorrichtung nach Anspruch 16, bei welcher das Betätigungsglied ein lineares Betätigungsglied (18) ist.
  18. Vorrichtung nach Anspruch 16, bei welcher das Betätigungsglied ein Dreh-Betätigungsglied (48) ist.
  19. Vorrichtung nach einem der Ansprüche 16 bis 18, bei welcher das Betätigungsglied (18,48) von einem Typ ist (welcher Schrittmotoren und lineare Schritt-Betätigungsglieder enthält), bei welchem ein gegebenes Eingangssignal in einer vorbestimmten Antwort reflektiert wird, ungeachtet (zumindest in den Umständen) von Betriebsbelastungen, denen das Betätigungsglied unterworfen ist.
  20. Vorrichtung nach einem der Ansprüche 16 bis 18, bei welcher das Betätigungsglied (18,48) ein Servo-Betätigungsglied ist, in welchem ein Fehlersignal in einer Rückführungsschleife die Antwort des Betätigungsgliedes einstellt, um Betriebsbelastungen entgegenzuwirken, denen das Betätigungsfeld unterworfen ist.
  21. Vorrichtung nach Anspruch 20, bei welcher das Fehlersignal von der Messung der zu dem Betätigungsglied (18,49) gelieferten Betriebsleistung abgeleitet wird.
EP91918586A 1990-11-09 1991-11-01 Aufbau eines fadenwickels Expired - Lifetime EP0556212B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97112822A EP0808791B1 (de) 1990-11-09 1991-11-01 Aufbau eines Fadenwickels

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9024396 1990-11-09
GB909024396A GB9024396D0 (en) 1990-11-09 1990-11-09 Thread package building
PCT/GB1991/001917 WO1992008664A1 (en) 1990-11-09 1991-11-01 Thread package building

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP97112822A Division EP0808791B1 (de) 1990-11-09 1991-11-01 Aufbau eines Fadenwickels

Publications (3)

Publication Number Publication Date
EP0556212A1 EP0556212A1 (de) 1993-08-25
EP0556212B1 true EP0556212B1 (de) 1998-02-18
EP0556212B2 EP0556212B2 (de) 2003-11-26

Family

ID=10685134

Family Applications (2)

Application Number Title Priority Date Filing Date
EP91918586A Expired - Lifetime EP0556212B2 (de) 1990-11-09 1991-11-01 Aufbau eines fadenwickels
EP97112822A Revoked EP0808791B1 (de) 1990-11-09 1991-11-01 Aufbau eines Fadenwickels

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP97112822A Revoked EP0808791B1 (de) 1990-11-09 1991-11-01 Aufbau eines Fadenwickels

Country Status (5)

Country Link
EP (2) EP0556212B2 (de)
AU (1) AU8755691A (de)
DE (2) DE69131211T2 (de)
GB (1) GB9024396D0 (de)
WO (1) WO1992008664A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009017857A1 (de) 2009-04-17 2010-10-21 Oerlikon Textile Gmbh & Co. Kg Fadenchangiereinrichtung

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Also Published As

Publication number Publication date
EP0556212B2 (de) 2003-11-26
EP0808791A2 (de) 1997-11-26
DE69131211T2 (de) 1999-11-04
DE69128939T3 (de) 2004-08-19
EP0808791B1 (de) 1999-05-06
DE69131211D1 (de) 1999-06-10
GB9024396D0 (en) 1991-01-02
WO1992008664A1 (en) 1992-05-29
EP0556212A1 (de) 1993-08-25
DE69128939D1 (de) 1998-03-26
EP0808791A3 (de) 1998-01-28
AU8755691A (en) 1992-06-11
DE69128939T2 (de) 1998-09-17

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