EP0968951B1 - Procédé de fonctionnement d'une machine textile pour la fabrication de bobines à spires croisées - Google Patents

Procédé de fonctionnement d'une machine textile pour la fabrication de bobines à spires croisées Download PDF

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Publication number
EP0968951B1
EP0968951B1 EP99107127A EP99107127A EP0968951B1 EP 0968951 B1 EP0968951 B1 EP 0968951B1 EP 99107127 A EP99107127 A EP 99107127A EP 99107127 A EP99107127 A EP 99107127A EP 0968951 B1 EP0968951 B1 EP 0968951B1
Authority
EP
European Patent Office
Prior art keywords
cross
wound bobbin
bobbin
angular velocity
wound
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
EP99107127A
Other languages
German (de)
English (en)
Other versions
EP0968951A1 (fr
Inventor
Gerard Küsters
Franz-Josef Sturm
Christian Sturm
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.)
Oerlikon Textile GmbH and Co KG
Original Assignee
W Schlafhorst AG and Co
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 W Schlafhorst AG and Co filed Critical W Schlafhorst AG and Co
Publication of EP0968951A1 publication Critical patent/EP0968951A1/fr
Application granted granted Critical
Publication of EP0968951B1 publication Critical patent/EP0968951B1/fr
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
    • B65H54/38—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
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/34—Pressure, e.g. fluid pressure
    • 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 according to the preamble of Claim 1.
  • the crosshair angle decreases as the bobbin diameter increases. There are no image zones with the winding type 'Precision winding'.
  • the bobbin has a high winding density and has good winding properties, which means that high take-off speeds can be achieved.
  • the stability of the package is limited due to the ever smaller thread crossing angle as the bobbin diameter increases.
  • the decreasing cross-hair angle causes an increase in the winding density towards the outside, which can lead to an uneven penetration of the dyeing liquor in the dyeing works.
  • a disadvantage of this type of winding is that the turn ratio decreases hyperbolically and so-called images or mirrors occur in certain turn ratio ranges in which the turn ratio takes on an integer value, for example.
  • the threads lie one above the other or very close to one another in several successive layers of turns.
  • the images mean that the package is more densely compressed in this area, so that, for example, uneven coloring can occur during dyeing.
  • the thread regions lying one on top of the other or closely next to one another will slide laterally onto one another and thereby jam one another, which has a very disadvantageous effect on the running properties of a package.
  • EP 0 399 243 B1 describes a Image interference method known in which to avoid images a friction drum designed as a grooved drum from a basic speed in short intervals the drive motor is braked and accelerated again that both during acceleration and during Braking slippage is present.
  • An image interference method is also known (DE 42 39 579 A1), where the speed of a thread guide drum and the RPM of a cheese and the measurement results in one Computers are evaluated in such a way that it is determined when during the winding process the emergence of pictures causing turn ratio range is passed.
  • This so-called image winding zone is the cheese through the Spool brake then opposite the thread guide drum in such a way slowed down that a slip arises between them. After this Passing through the image winding zone is the reel brake again loosened so that the cheese then again slip-free is driven.
  • a winding device in which the contact pressure of the package on the thread guide drum in the region of an image winding zone can be reduced.
  • the coil frame is connected to an electromechanical torque actuator, preferably a DC motor working from a standstill, which in turn is connected to a control device.
  • a coil brake can also be controlled via the control device.
  • the Invention based on the object, the known image interference method to improve.
  • this object is achieved by a method as described in claim 1.
  • the method according to the invention has the advantage that it enables reliable circumvention of image winding areas with a relatively low technical outlay and thus at low cost. That is, if it is determined on the basis of the control device that the cross-wound bobbin has reached a certain diameter and thus an image winding zone, the angular velocity of the cross-wound bobbin is reduced to an angular velocity below defined by regulating the contact pressure with which the cross-wound bobbin rests on the thread guide drum is a critical angular speed of the package and thus simply bypass the image winding zone.
  • These critical angular velocities at which image windings occur are given at certain known cross-coil diameters when a cross-wound package is driven without slippage.
  • the angular speed of the cheese is reduced, as set out in claim 2, to a level which corresponds to an angular speed which a cheese driven without slip would have due to its diameter when leaving the image winding zone.
  • the intended angular velocity is exactly maintained by regulating the contact pressure until the image winding zone is left. In this way, the previously disturbing residual images can also be reliably avoided.
  • the relatively low technical effort results, among other things, from the fact that the package, as set out in claim 3, can be subjected to a constant or almost constant, only relatively weak braking torque in the area of the image winding zone, because the regulation of the speed of the package alone via the contact pressure of the package on the thread guide drum.
  • a constant braking torque which is generally not very high, can also be achieved without problems with the coil brakes used to date.
  • the Initiation of a braking torque via the coil brake even to be completely dispensed with.
  • the Claims 4 to 6 set out the braking torque from the Air friction of the cheese and / or the bearing friction of the Bobbin holder and / or the friction of the thread to be rewound be won.
  • the defined regulation of the contact pressure of the cross-wound bobbin on the thread guide drum and thus the exact setting of the speed of the cross-wound bobbin takes place, as set out in claim 7, via a torque sensor designed as a stepper motor.
  • the stepper motor is part of a coil frame adjustment device, as described in detail in the subsequently published DE 198 17 363.3.
  • FIGS. 1 and 2 each show, using a curve 22, the speed curve of a cross-wound bobbin during its bobbin travel when using the image interference method according to the invention.
  • the speed curve or the angular velocity of a cross-wound bobbin in the area of an image winding zone BZW is shown.
  • the ordinate shows the angular velocity w of the cheese on the abscissa the diameter d of the cheese.
  • Fig. 1 shows a first embodiment
  • Fig. 2 shows an alternative embodiment.
  • the angular velocity w of the cheese 4 decreases continuously with increasing coil diameter d.
  • a coil diameter d 1 a critical area, a so-called image winding zone BWZ, is reached.
  • the image winding zone BWZ extends on both sides of a critical cross-wound bobbin diameter d k , in which, as already explained in the introduction to the description, there is a turn ratio between the thread guide drum and the bobbin which leads to the formation of so-called image windings.
  • the exact spread of the critical image winding zone BWZ depends on various factors, for example the thread number, the thread material, the winding density, etc.
  • the angular velocity w 1 which the cross-wound bobbin 4 has due to its diameter d 1 when it reaches the image winding zone BWZ, is first reduced to an angular velocity w 2 by defined activation of the coil frame, and this angular velocity w 2 during Maintain passage through the image winding zone BWZ.
  • the angular velocity w 2 corresponds to an angular velocity with which a cross-wound bobbin with the diameter d 2 would rotate at a constant speed and without slippage.
  • the angular velocity w 2 is well below the angular velocity that a cross-wound bobbin with the critical diameter d k would have without slippage.
  • the angular velocity w 2 then again corresponds to the speed curve of a cheese, which is driven almost without slip, using the curve 22.
  • the angular velocity w 1 of the cross-wound bobbin is also initially reduced to an angular velocity w 2 .
  • the angular velocity w 2 is below the angular velocity of the cheese, given by the critical cross-coil diameter d k .
  • the angular velocity w 2 is further reduced when passing through the image winding zone BWZ, in order to raise the angular velocity again at the end of the image winding zone, by corresponding loading of the coil frame, which corresponds to the angular velocity of a cross-wound bobbin with the diameter d 2 corresponds.
  • the image interference method described above can be used instead of one the known in the introduction to the known Image interference method or in addition to such Image interference methods are used.
  • FIG. 3 shows a device which carries out the Image interference method according to the invention enables.
  • a thread guide drum 3 which is driven by an electric motor (not shown), is mounted in the bobbin case housing 2 of a textile machine producing a bobbin, generally designated 1.
  • the thread guide drum 3 in turn drives a cheese 4 via friction.
  • the cross-wound bobbin 4 is held in a bobbin frame 5 which is non-rotatably connected to a pivot axis 6.
  • the pivot axis 6 is arranged parallel to the axis of the thread guide drum 3 and is pivotally supported on the winding unit housing 2 to a limited extent.
  • the coil frame 5 has, as usual, two coil arms 7 and 8, which are provided with rotatably mounted bobbins. A sleeve is held between the spool plates, on the one Thread to form the package 4 is wound. At least one of the coil arms 7, 8 is not shown in detail Way together with the bobbin winder to the side of the package can be swung away so that a full cheese from the Coil frame 5 removed and an empty sleeve can be inserted can.
  • This torque sensor shows among other things a rotatably connected to the pivot axis 6 Connection disc 9 and a coaxial to the pivot axis 6 rotatable stored gear 10.
  • the connecting disc 9 is with Provide connecting bolts 11, which indicate the gear 10.
  • corresponding connector bolts 12 are provided.
  • Between the connecting bolts 11 of the connecting plate 9 and the Connection bolts 12 of the gear 10 are as Transmission elements identical spring elements 13 in the form of Coil springs switched on, the relative rotation of Gear 10 and connecting plate 9 are deformed in opposite directions.
  • the rotatably mounted gear 10 meshes with a pinion 14 a reduction gear, the outer ring 15 over a Drive pinion 16 is connected to a stepper motor 17. Since the drive pinion 16, the outer ring 15 and the pinion 14 are rotatably mounted on the bobbin case 2, can Reduction gear every rotation of the am Winding unit housing 2 fixed stepping motor 17, for example in a ratio of 1:25, on the gear 10 be transmitted.
  • the stepper motor 17, for example for Individual steps of approx.
  • 1.8 ° are designed using a Controlled winding station computer 18 and is capable of one predetermined number of revolutions or a predetermined one Number of individual steps to be carried out on the coil frame 5 result in a torque over which the contact pressure of the Cross-wound bobbin 4 on the thread guide drum 3 is adjustable.
  • both the speed of the cheese 4 and the speed of the thread guide drum 3 are continuously detected.
  • the current winding ratio of the cheese 4 is always calculated in the winding station computer 18 from these data and the known construction data of the machine.
  • the speed of the cheese 4 becomes an instantaneous by Cross-bobbin diameter predetermined speed n 1 reduced to an adjustable speed n 2 .
  • the reduction in the speed n 1 of the cheese 4 to a speed n 2 and the exact maintenance of this speed takes place in that the cheese 4 on the one hand, for example via the coil brake 20, which is connected to the winding station computer 18 via a signal line 21, applied with a constant braking torque and on the other hand the contact pressure with which the package 4 rests on the thread guide drum 3 is reduced by a defined lifting of the bobbin frame 5.
  • the desired speed n 2 of the cheese 4 can be precisely adjusted by increasing or decreasing this contact pressure.
  • image wrap can be avoided by by means of the stepping motor 17, the gear 10 in a position is twisted, the calculated contact pressure of the Cross-wound bobbin 4 on the thread guide drum 3 corresponds.
  • the control of the contact pressure as a function of the coil travel the package or the package diameter Adjustment of the stepper motor 17 takes place in the Reel station computer 18 using a control program.
  • Such a control program calculates the required position of the stepping motor 17, expressed in positive or negative Steps, for example based on the above Sensor data that the winding unit computer during the whole Coil trip are fed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Winding Filamentary Materials (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Manufacture Of Motors, Generators (AREA)

Claims (7)

  1. Procédé pour faire fonctionner une machine textile pour la fabrication de bobines à spires croisées, qui réalise des bobines à spires croisées de type "à enroulement à fils jetés", sachant que la vitesse d'enroulement de la bobine à spires croisées et d'un tambour guide-fil entraínant par friction la bobine à spires croisées est captée en permanence et traitée dans un dispositif de commande pour calculer des zones parallèles et que, pour éviter la formation de spires parallèles, la pression d'appui de la bobine à spires croisées sur le tambour guide-fil est réduite dans les zones parallèles et la bobine à spires croisées subit simultanément un couple de freinage, caractérisé en ce qu'en atteignant une zone parallèle (BWZ) ou juste avant de l'atteindre, la vitesse angulaire (w1) prédéfinie par le diamètre (d1) de la bobine à spires croisées (4) est réduite, en réglant de façon définie la pression avec laquelle la bobine à spires croisées (4) repose sur le tambour guide-fil (3), à une vitesse angulaire (w2) qui est inférieure à la vitesse angulaire critique (wk) que présenterait une bobine à spires croisées présentant le diamètre critique (dk) qui serait entraínée sans qu'elle ne patine.
  2. Procédé selon la revendication 1, caractérisé en ce que, lorsque la bobine à spires croisées (4) atteint une zone parallèle (BWZ) ou juste avant qu'elle ne l'atteigne, la vitesse angulaire w1 prédéfinie par le diamètre d1 de ladite bobine est réduite à une vitesse angulaire w2 en réglant de façon définie la pression exercée par la bobine à spires croisées (4) sur le tambour du guide-fil (3), laquelle vitesse angulaire correspond à une vitesse angulaire que présenterait à la sortie de la zone parallèle (BWZ) une bobine à spires croisées (4) présentant le diamètre d2 qui serait entraínée sans qu'elle ne patine, et en ce que la vitesse angulaire w2 de la bobine à spires croisées (4) est maintenue jusqu'à ce que la zone parallèle (BWZ) soit parcourue.
  3. Procédé selon les revendications 1 et 2, caractérisé en ce qu'en traversant une zone parallèle (BWZ), la bobine à spires croisées (4) est sollicitée par un couple de freinage constant ou presque constant et en ce que la régulation de la vitesse angulaire w2 de la bobine à spires croisées (4) est exclusivement réalisée par le réglage de la pression avec laquelle la bobine à spires croisées (4) repose sur le tambour guide-fil (3).
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que le couple de freinage est donné par le frottement de l'air sur la bobine à spires croisées (4) en rotation.
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce que le couple de freinage est défini par le frottement du palier du support du cantre à bobines (5) maintenant les bobines à spires croisées (4).
  6. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'on utilise comme couple de freinage le couple du fil qui survient au cours du processus de bobinage et qui est dû au frottement.
  7. Procédé selon l'une des revendications précédentes, caractérisé en ce que la pression avec laquelle la bobine à spires croisées (4) repose sur le tambour du guide-fil (3) est réglée par le biais d'un indicateur de couple réalisé en tant que moteur pas à pas (16).
EP99107127A 1998-07-02 1999-04-13 Procédé de fonctionnement d'une machine textile pour la fabrication de bobines à spires croisées Expired - Lifetime EP0968951B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19829597A DE19829597A1 (de) 1998-07-02 1998-07-02 Verfahren zum Betreiben einer Kreuzspulen herstellenden Textilmaschine
DE19829597 1998-07-02

Publications (2)

Publication Number Publication Date
EP0968951A1 EP0968951A1 (fr) 2000-01-05
EP0968951B1 true EP0968951B1 (fr) 2002-07-24

Family

ID=7872770

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99107127A Expired - Lifetime EP0968951B1 (fr) 1998-07-02 1999-04-13 Procédé de fonctionnement d'une machine textile pour la fabrication de bobines à spires croisées

Country Status (5)

Country Link
US (1) US6206320B1 (fr)
EP (1) EP0968951B1 (fr)
JP (1) JP2000026021A (fr)
DE (2) DE19829597A1 (fr)
TR (1) TR199901545A2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19962296A1 (de) * 1999-12-23 2001-06-28 Schlafhorst & Co W Spulmaschine
DE10020664A1 (de) 2000-04-27 2001-10-31 Schlafhorst & Co W Verfahren zum Betreiben einer Kreuzspulen herstellenden Textilmaschine
DE10045919A1 (de) * 2000-09-16 2002-03-28 Schlafhorst & Co W Vorrichtung zum Steuern eines Spulenrahmens einer Textilmaschine
DE10060237A1 (de) * 2000-12-05 2002-06-06 Schlafhorst & Co W Verfahren zum Betreiben einer Kreuzspulen herstellenden Textilmaschine
ES2302124T3 (es) * 2005-03-30 2008-07-01 Benninger Ag Procedimiento y disposicion para el funcionamiento de una fileta de bobinas para una instalacion bobinadora asi como una fileta de bobinas.
DE102005054356A1 (de) * 2005-11-15 2007-05-16 Saurer Gmbh & Co Kg Verfahren zur Vermeidung von Bildwicklungen
DE102007062631B4 (de) * 2007-12-22 2018-07-26 Saurer Germany Gmbh & Co. Kg Vorrichtung zur Überwachung einer unerwünschten Fadenwickelbildung in einer Textilmaschine
DE102008032654A1 (de) 2008-07-10 2010-01-14 Oerlikon Textile Gmbh & Co. Kg Verfahren und Vorrichtung zur Bildstörung beim Aufwickeln eines Fadens
DE102013009653A1 (de) * 2013-06-08 2014-12-11 Saurer Germany Gmbh & Co. Kg Verfahren zum Einstellen einer Drehwinkelstellung eines eine Spulenhülse drehbeweglich halternden Spulenrahmens und Spulen herstellende Textilmaschine mit mehreren Spulstellen

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DE2129318C2 (de) * 1971-06-12 1983-12-22 W. Schlafhorst & Co, 4050 Mönchengladbach Bildstöreinrichtung an einer Kreuzspulmaschine
DE2606208C3 (de) * 1976-02-17 1982-12-16 Bayer Ag, 5090 Leverkusen Spulverfahren zum Herstellen von Kreuzspulen wilder Wicklung
DE2914924A1 (de) * 1979-04-12 1980-10-30 Barmag Barmer Maschf Aufspuleinrichtung
US4504021A (en) * 1982-03-20 1985-03-12 Barmag Barmer Maschinenfabrik Ag Ribbon free wound yarn package and method and apparatus for producing the same
DE3219880A1 (de) * 1982-05-27 1984-02-16 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Verfahren zur spiegelstoerung beim aufwickeln eines fadens in wilder wicklung
DE3210244A1 (de) * 1982-03-20 1983-09-22 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Verfahren zur spiegelstoerung beim aufwickeln eines fadens in wilder wicklung
US4504024A (en) * 1982-05-11 1985-03-12 Barmag Barmer Maschinenfabrik Ag Method and apparatus for producing ribbon free wound yarn package
DE3324889A1 (de) * 1983-07-09 1985-01-17 W. Schlafhorst & Co, 4050 Mönchengladbach Verfahren und vorrichtung zum vermeiden von bildwicklungen beim wickeln von kreuzspulen
EP0230100B1 (fr) * 1985-10-30 1995-12-20 Mitsubishi Paper Mills, Ltd. Matériaux sensibles à la lumière pour plaques d'impression lithographiques
IT1227912B (it) * 1988-12-23 1991-05-14 Savio Spa Procedimento ed apparecchio per pilotare la distribuzione del filo sull'impacco in formazione in un gruppo di raccolta per fili sintetici
DE3916918A1 (de) 1989-05-24 1990-11-29 Schlafhorst & Co W Verfahren und vorrichtung zum vermeiden von bildwicklungen beim wickeln einer kreuzspule
DE3927142C2 (de) * 1989-08-17 1998-02-12 Schlafhorst & Co W Einrichtung zum Steuern des Kontaktdruckes und/oder der Relativbewegung zwischen einer Spulwalze und einer Spule
JPH03264472A (ja) * 1990-03-14 1991-11-25 Murata Mach Ltd 巻取装置
JPH04345473A (ja) 1991-05-21 1992-12-01 Mitsubishi Rayon Co Ltd 糸の巻取方法および綾振り巻取装置
DE4239579A1 (de) * 1992-11-25 1994-05-26 Schlafhorst & Co W Verfahren zum Wickeln von Kreuzspulen
ES2122146T3 (es) * 1993-06-25 1998-12-16 Savio Macchine Tessili Spa Metodo y aparato para distribuir hilo arrollado en una bobina accionada por un rodillo ranurado.
DE19519542B4 (de) * 1994-06-29 2004-05-13 Saurer Gmbh & Co. Kg Verfahren und Vorrichtung zur Vermeidung von Bildwicklungen
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DE19625510A1 (de) * 1996-06-26 1998-01-02 Schlafhorst & Co W Verfahren und Vorrichtung zum Herstellen einer Spule

Also Published As

Publication number Publication date
TR199901545A3 (tr) 2000-02-21
JP2000026021A (ja) 2000-01-25
DE19829597A1 (de) 2000-01-05
EP0968951A1 (fr) 2000-01-05
US6206320B1 (en) 2001-03-27
TR199901545A2 (xx) 2000-02-21
DE59902098D1 (de) 2002-08-29

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