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EP0194524A2 - Procédé de bobinage - Google Patents

Procédé de bobinage Download PDF

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Publication number
EP0194524A2
EP0194524A2 EP86102619A EP86102619A EP0194524A2 EP 0194524 A2 EP0194524 A2 EP 0194524A2 EP 86102619 A EP86102619 A EP 86102619A EP 86102619 A EP86102619 A EP 86102619A EP 0194524 A2 EP0194524 A2 EP 0194524A2
Authority
EP
European Patent Office
Prior art keywords
winding
speed
modulation
traversing
ratio
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.)
Granted
Application number
EP86102619A
Other languages
German (de)
English (en)
Other versions
EP0194524A3 (en
EP0194524B1 (fr
Inventor
Siegmar Dipl.-Ing. Gerhartz
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 Barmag AG
Original Assignee
Barmag AG
Barmag Barmer Maschinenfabrik AG
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 Barmag AG, Barmag Barmer Maschinenfabrik AG filed Critical Barmag AG
Publication of EP0194524A2 publication Critical patent/EP0194524A2/fr
Publication of EP0194524A3 publication Critical patent/EP0194524A3/de
Application granted granted Critical
Publication of EP0194524B1 publication Critical patent/EP0194524B1/fr
Expired 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
    • B65H54/381—Preventing ribbon winding in a precision winding apparatus, i.e. with a constant ratio between the rotational speed of the bobbin spindle and the rotational speed of the traversing device driving shaft
    • B65H54/383—Preventing ribbon winding in a precision winding apparatus, i.e. with a constant ratio between the rotational speed of the bobbin spindle and the rotational speed of the traversing device driving shaft in a stepped precision winding apparatus, i.e. with a constant wind ratio in each step
    • 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
    • B65H54/40—Arrangements for rotating packages
    • B65H54/42—Arrangements for rotating packages in which the package, core, or former is rotated by frictional contact of its periphery with a driving surface
    • 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 winding process for threads, in particular chemical threads in spinning and stretching machines.
  • Chemical threads are threads made of thermoplastic materials.
  • the industry uses in particular polyester (polyethylene terephthalate) and polyamide (nylon 6, nylon 6.6).
  • Chemical threads consist of a large number of individual capillaries and are therefore referred to as multifilaments
  • Such multifilament chemical threads offer the problem of mirror formation when spooling if they are spooled in a wild winding.
  • the formation of the bobbins takes place at a constant circumferential bobbin speed and at a constant traversing speed.
  • the bobbin ratio - that is the ratio of the speed of the bobbin spindle to the double stroke rate of the traversing - (ns / DH) - decreases steadily over the course of the winding cycle , since the speed of the winding spindle also decreases with increasing bobbin diameter.
  • Mirrors are created when the winding ratio becomes an integer or assumes values that differ by a large fraction from the next integer winding ratio.
  • a "large fraction” is a fraction whose denominator is a small integer - (integer), e.g. 1/2, 1/3, 1/4.
  • the bobbin build-up takes place at a traversing speed that is directly proportional to the speed of the winding spindle.
  • the winding ratio - that is the ratio of the speed of the winding spindle to the double stroke rate of the traversing speed - is fixed and constant during the winding cycle remains while the traversing speed decreases proportionally to the spindle speed with the winding ratio as a proportionality factor.
  • a coil built in precision winding can have advantages over a coil built in wild winding. In particular, mirror formation can be avoided in the case of a precision winding by specifying the winding ratio.
  • the so-called graduated precision winding differs from the precision winding in that the winding ratio only remains constant during predetermined phases of the winding cycle. From phase to phase, the winding ratio in steps is reduced by a sudden increase in the traversing speed
  • an upper limit value and a lower limit value are specified for the traversing speed, and only changes in the traversing speed between these limit values are permitted.
  • the range between these limit values is so narrow that the change in the traversing speed does not lead to impermissible thread tension changes. Nevertheless, it must be avoided that winding conditions with mirror symptoms are set.
  • the precalculation of the winding ratios to be set one after the other must therefore be carried out with great care and accuracy and, in cases of doubt, tests should also be carried out as to whether a predicted winding ratio actually does not lead to mirror symptoms in practice.
  • the object of the invention is to make the step precision winding method a suitable method for producing high-quality coils with a large diameter, even if the technical accuracy of the electronic, electrical and mechanical devices does not allow the winding ratios to be maintained exactly as before have been determined and programmed as optimal.
  • the solution according to the invention is characterized in that an inaccuracy of the winding ratio is deliberately brought about.
  • the invention makes use of the knowledge that the unintentional inaccuracy is constant and always has the same phase direction to the exact value, so that the defects in the thread deposit caused by the inaccuracy of the winding ratio are constant in terms of size and phase direction.
  • the drive of the traversing device is e.g. - run faster than specified by the program. However, it will not fluctuate at times faster and at times slower than specified by the program.
  • the inaccuracy, which is intended according to the invention but fluctuates deliberately causes defects in the thread deposit, which however also fluctuate in size and phase direction. This not only eliminates the consequences of these defects, but also completely eliminates the defects in the thread deposit
  • the modulation of the winding ratio proposed according to the invention has a modulation width A which is so small that the traversing speed does not change by more than ⁇ 0.5% of the calculated and programmed value of the traversing speed. that the modulation width of the winding ratio is generally less than 0.1%, but preferably less than 1 per mille and is usually less than 0.5 per thousand. It has been found that the modulation width, based on the winding ratio, is substantially equal to the modulation width, based on the traversing speed.
  • Modulation widths of more than 0.5% must be avoided in any case, since otherwise it is no longer guaranteed that critical winding conditions will not be run through.
  • Critical winding ratios are those in which the mirror symptoms described above occur.
  • the modulation is preferably carried out periodically - fluctuating.
  • the frequency of the fluctuations must be greater than 5 per minute, preferably greater than 10 per minute.
  • Experience has shown that at frequencies of the fluctuation of more than 30 per minute, all winding errors which have been described above can be eliminated.
  • the modulation can be limited to those sections of the winding cycle in which experience has shown that problems with winding, in particular bead formation, occur. However, the modulation can also take place as a function of disturbances which appear on the take-up device. It should be pointed out here that bead formation leads to vibrations of the winding device and also to noise. As soon as such disturbances occur on the winding device, these disturbances can be detected by sensors and the output signal of the sensors can be used to switch on the modulation. In a further embodiment of the invention it is provided that a constant scanning, preferably optical or pneumatic scanning of the coil surface takes place and that the modulation is switched on when bulges appear on the coil surface.
  • the winding machine is first described with reference to FIG. 3.
  • the thread 1 runs at a constant speed v through the traversing thread guide 3, which is made to reciprocate by the reversing thread shaft 2 transversely to the direction of the thread.
  • the traversing device includes the grooved roller 4, in the endless, back and forth groove of which the thread is guided with partial wrap. 7 with the coil and 6 with the freely rotatable winding spindle (spindle) is designated.
  • the driving roller and traversing on the one hand and the winding spindle and the spool on the other hand are radially movable relative to one another, so that the center distance between the spindle 6 and the driving roller 8 can be changed as the diameter of the spool increases.
  • the reversing thread roller 2 and the grooved roller 4 are driven by a three-phase motor , e.g. Asynchronous motor 9, driven.
  • the reverse thread roller 2 and the grooved roller 4 are geared, e.g. connected by drive belts 10.
  • the drive roller 8 is driven by a synchronous motor 11 at a constant peripheral speed.
  • a motor can also be used to drive the bobbin, which drives the bobbin spindle 6 directly and whose speed is controlled so that the peripheral speed of the bobbin remains constant even with increasing bobbin diameter.
  • the three-phase motors 9 and 11 receive their energy from frequency converters 12 and 13.
  • the synchronous motor 11, which serves as a coil drive, is connected to the frequency converter 12, which supplies the adjustable frequency f2.
  • the asynchronous motor 9 is operated by frequency converter 12, which is connected to a computer 15.
  • the output signal 20 of the computer 15 depends on the input.
  • the current traversing speed or double stroke number is also advantageously sensed by sensor 17 and input to the computer by sensor 17.
  • the computer 15 carries out a target / actual value comparison and regulates the traversing speed of the traversing devices driven by the asynchronous motor 9 to the target value.
  • the setpoint value of the traversing speed is the value which results from the rotational speed of the winding spindle 6, currently measured by measuring sensor 18, divided by the winding ratio, which is pre-calculated for the respective winding phase and entered into the computer 15 by the program unit 19.
  • the main task of the computer 15 is to carry out this setpoint determination of the traversing speed.
  • the computer first receives from the program memory or program generator 19 the pre-calculated winding conditions which are ideal and stored in the sense of the invention. From each of these ideal winding conditions and from the initial value e.g. The computer calculates the "ideal" spindle speed based on the upper limit value (OGC) of the traversing speed. However, the programmer can also be entered the spindle speeds previously calculated from the "ideal" winding conditions, taking into account the initial value of the traversing speed, so that this computing operation does not have to be carried out by the computer. In any case, the values of the "ideal" spindle speeds are compared with the current spindle speeds determined by the sensor 18.
  • GOC upper limit value
  • the computer determines the identity of the spindle speeds, it outputs the output value 20 of the traversing speed, which is also predetermined by the programmer 19, as the setpoint to the frequency converter 13.
  • the computer reduces this setpoint of the traversing speed in proportion to the constantly measured spindle speed, which decreases hyperbolically with increasing coil diameter at constant coil circumferential speed.
  • the predetermined "ideal" winding ratio therefore remains constant during this stage of the precision winding If the measured spindle speed approximates the "ideal" spindle speed determined by the next winding ratio specified as "ideal”, the output value of the traversing speed is again specified as the setpoint as output signal 20.
  • a new level of precision winding follows.
  • a constant winding ratio K during a winding phase P means that the traversing speed decreases proportionally to the spindle speed.This decrease in traversing speed can only be allowed until the lower limit value UGC of the traversing speed is at least approximately reached. That means in the diagram according to Fig. 1 and Fig. 1A that the upper limit value OGK of the winding ratio has been reached. The traversing speed must now be increased suddenly to its upper limit value OGC. This abrupt increase in the traversing speed in FIG. 1, FIG. 1A means an abrupt decrease in the winding ratio K to its lower limit value UGK.
  • the upper limit of the traversing speed is a constant variable which is continuously reset in the course of the winding cycle. It is always set when this variable assumes a precalculated, ideal value in relation to the current spindle speed.
  • the lower limit of the traversing speed is only a calculated value, which indicates the greatest permissible drop in the traversing speed, which in reality is rarely or never achieved and only plays a role in the calculation of the upper limit value. It should be noted that the method can also be controlled in reverse.
  • the lower limit value of the traversing speed can be specified as a real limit value that is repeatedly approached.
  • the upper limit indicates the largest permissible jump in the traversing speed upwards. However, in reality it is only approached in exceptional situations if this upper limit value happens to have an ideally calculated value in relation to the current spindle speed
  • the thread tension may only fluctuate within certain limits, so that the range between the limit values of the traversing speed OGC and UGC is very narrow.
  • This also means that two winding ratios K1 and K2 of the two successive winding phases P1 and P2 must be relatively close together. Nevertheless, the successive winding ratios must be selected so that there is no risk of mirror formation. This limits the number of favorable winding ratios available for selection and it cannot be avoided that a favorable winding ratio for K1 is very close to another unfavorable winding ratio leading to bulge formation It was, for example.
  • the first-mentioned winding ratio 4.08631 was again set without increasing the accuracy requirements for the measurement data acquisition and the adjustment and control of the traversing speed, and this sol value was also modulated in a theoretical sine line.
  • the associated setpoint of the traversing speed was changed sinusoidally by ⁇ 0.005% at a modulation frequency of 20 per minute
  • 1A shows the sinusoidal modulation of the winding ratio with the modulation amplitude (modulation width) A and a certain modulation frequency.
  • a program for sinusoidal modulation of the traversing speed is also entered into the program unit 19.
  • This program can be a constant or variable, e.g. Provide increasing modulation amplitude (modulation width) during the winding cycle.
  • the modulation range according to this invention is in any case less than 0.5%, preferably less than 0.1%. It should be emphasized that the modulation amplitude should be chosen as narrow as possible, since this has improved the quality of the coil. It must be taken into account how close the bobbin conditions must be to each other in order to avoid impermissible changes in thread tension, but still maintain a good bobbin build. The smaller the difference between the winding ratios, the smaller the modulation width is chosen. In general, the modulation width with which the traversing speed is changed is less than 1 per mille.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Winding Filamentary Materials (AREA)
EP86102619A 1985-03-05 1986-02-28 Procédé de bobinage Expired EP0194524B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE3507632 1985-03-05
DE3507632 1985-03-05
DE3514875 1985-04-25
DE3514875 1985-04-25
DE3523322 1985-06-29
DE3523322 1985-06-29

Publications (3)

Publication Number Publication Date
EP0194524A2 true EP0194524A2 (fr) 1986-09-17
EP0194524A3 EP0194524A3 (en) 1987-08-12
EP0194524B1 EP0194524B1 (fr) 1989-06-14

Family

ID=27192860

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86102619A Expired EP0194524B1 (fr) 1985-03-05 1986-02-28 Procédé de bobinage

Country Status (4)

Country Link
US (1) US4667889A (fr)
EP (1) EP0194524B1 (fr)
CN (1) CN1005029B (fr)
DE (1) DE3663931D1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0401781A1 (fr) * 1989-06-09 1990-12-12 Fritjof Dr.-Ing. Maag Bobine croisée enroulée avec précision, méthode pour la production et dispositif à cet effet
DE4208395A1 (de) * 1992-03-16 1993-09-23 Sahm Georg Fa Verfahren zum aufspulen von einer spuleinrichtung zugefuehrtem, band- oder fadenfoermigem spulgut in kreuzspulung mit praezisionswicklung
EP0562296A1 (fr) * 1992-03-16 1993-09-29 Georg Sahm Gmbh & Co. Kg Procédé pour le bobinage de matériau fileforme, alimenté en continu de préférence à vitesse constante, en enroulement de précision étagée et dispositif de bobinage pour la mise en oeuvre de ce procédé
DE4343881A1 (de) * 1993-12-22 1995-06-29 Schlafhorst & Co W Verfahren zur Regelung eines Riemenfadenführerantriebes
US6027060A (en) * 1997-04-24 2000-02-22 Barmag Ag Method of winding a yarn to a cylindrical cross-wound package
WO2004101415A1 (fr) * 2003-05-19 2004-11-25 Starlinger & Co Gesellschaft M.B.H. Procede de bobinage de bande

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62290682A (ja) * 1986-06-03 1987-12-17 Teijin Seiki Co Ltd トラバ−ス装置
DE3761556D1 (de) * 1986-08-09 1990-03-08 Barmag Barmer Maschf Verfahren zum aufwickeln von faeden.
DE3627879C2 (de) * 1986-08-16 1995-09-28 Barmag Barmer Maschf Verfahren zum Aufwickeln von Fäden
EP0260682B1 (fr) * 1986-09-18 1991-04-03 TEIJIN SEIKI CO. Ltd. Procédé et dispositif pour embobiner des fils
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
IT1251866B (it) * 1991-09-24 1995-05-26 Fadis Spa Metodo per il controllo della posizione del punto di inversione del filato particolarmente per macchine roccatrici e relativa apparecchiatura
DE4223271C1 (fr) * 1992-07-17 1993-06-24 Neumag - Neumuenstersche Maschinen- Und Anlagenbau Gmbh, 2350 Neumuenster, De
DE19619706A1 (de) * 1995-05-29 1996-12-05 Barmag Barmer Maschf Verfahren zur Erzielung einer Spiegelstörung
DE19548257A1 (de) * 1995-12-22 1997-10-09 Schlafhorst & Co W Verfahren zur Vermeidung von Bildwicklungen beim Wickeln von Kreuzspulen
WO1998033735A1 (fr) * 1997-02-05 1998-08-06 Plant Engineering Consultants, Inc. Procede et appareil de bobinage de precision
US6568623B1 (en) * 2000-03-21 2003-05-27 Owens-Corning Fiberglas Technology, Inc. Method for controlling wind angle and waywind during strand package buildup
DE10015933B4 (de) * 2000-03-30 2015-09-03 Saurer Germany Gmbh & Co. Kg Verfahren zum Herstellen einer Stufenpräzisionswicklung
ITMI20010682A1 (it) * 2000-04-20 2002-09-30 Schlafhorst & Co W Procedimento per produrre una bobina incrociata e bobina incrociata ottenuta con esso
SI22124A (sl) * 2006-12-07 2007-04-30 Danilo Jaksic Metoda precizijskega navijanja tekstilne preje na navitke z veckratnim spreminjanjem navijalnega razmerja znotraj enega ciklusa navijanja
BRPI0914347A2 (pt) * 2008-10-27 2015-10-20 Invista Tech Sarl ''artigo e método de aumentar uma quantidade de fio elastomérico enrolado em um carretel''
JP5185781B2 (ja) * 2008-11-14 2013-04-17 長岡産業株式会社 シート材の巻付け装置
JP2016078995A (ja) * 2014-10-17 2016-05-16 村田機械株式会社 糸巻取装置及びパッケージ減速方法
CZ2015311A3 (cs) * 2015-05-06 2016-08-10 Technická univerzita v Liberci Způsob navíjení samonosné cívky a samonosná cívka s křížovým návinem spodní niti pro šicí stroje

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3741491A (en) * 1971-11-29 1973-06-26 Leesona Corp Apparatus for winding yarn
US3799463A (en) * 1972-04-18 1974-03-26 Allied Chem Ribbon breaking for high speed surface driven winders
CH603469A5 (fr) * 1975-11-05 1978-08-15 Rieter Ag Maschf
BG23472A1 (fr) * 1975-12-05 1977-09-15
DE2606208C3 (de) * 1976-02-17 1982-12-16 Bayer Ag, 5090 Leverkusen Spulverfahren zum Herstellen von Kreuzspulen wilder Wicklung
DE3049573A1 (de) * 1980-12-31 1982-07-29 Fritjof Dipl.-Ing. Dr.-Ing. 6233 Kelkheim Maag Vorrichtung zur herstellung von garnspulen
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
US4504024A (en) * 1982-05-11 1985-03-12 Barmag Barmer Maschinenfabrik Ag Method and apparatus for producing ribbon free wound yarn package

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0401781A1 (fr) * 1989-06-09 1990-12-12 Fritjof Dr.-Ing. Maag Bobine croisée enroulée avec précision, méthode pour la production et dispositif à cet effet
DE3918846A1 (de) * 1989-06-09 1990-12-13 Maag Fritjof Praezisionskreuzspule, verfahren zu deren herstellung und spuleinrichtung dafuer
DE4208395A1 (de) * 1992-03-16 1993-09-23 Sahm Georg Fa Verfahren zum aufspulen von einer spuleinrichtung zugefuehrtem, band- oder fadenfoermigem spulgut in kreuzspulung mit praezisionswicklung
EP0562296A1 (fr) * 1992-03-16 1993-09-29 Georg Sahm Gmbh & Co. Kg Procédé pour le bobinage de matériau fileforme, alimenté en continu de préférence à vitesse constante, en enroulement de précision étagée et dispositif de bobinage pour la mise en oeuvre de ce procédé
US5439184A (en) * 1992-03-16 1995-08-08 Georg Sahm Gmbh & Co. Kg Precision winding method and apparatus
DE4343881A1 (de) * 1993-12-22 1995-06-29 Schlafhorst & Co W Verfahren zur Regelung eines Riemenfadenführerantriebes
US6027060A (en) * 1997-04-24 2000-02-22 Barmag Ag Method of winding a yarn to a cylindrical cross-wound package
WO2004101415A1 (fr) * 2003-05-19 2004-11-25 Starlinger & Co Gesellschaft M.B.H. Procede de bobinage de bande
EP1982942A1 (fr) * 2003-05-19 2008-10-22 Starlinger & Co. Ges.m.b.H. Procédé d'embobinage de bande
CN100503407C (zh) * 2003-05-19 2009-06-24 施塔林格有限公司 带卷绕方法
US7762491B2 (en) 2003-05-19 2010-07-27 Starlinger & Co Gesellschaft M.B.H. Band-winding method

Also Published As

Publication number Publication date
CN1005029B (zh) 1989-08-23
US4667889A (en) 1987-05-26
EP0194524A3 (en) 1987-08-12
DE3663931D1 (en) 1989-07-20
EP0194524B1 (fr) 1989-06-14
CN86100703A (zh) 1986-09-03

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