EP1687470B1 - Procede pour produire un fil a effet sur une machine de filature a rotor a extremite ouverte, et fil a effet correspondant - Google Patents

Procede pour produire un fil a effet sur une machine de filature a rotor a extremite ouverte, et fil a effet correspondant Download PDF

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Publication number
EP1687470B1
EP1687470B1 EP04790329A EP04790329A EP1687470B1 EP 1687470 B1 EP1687470 B1 EP 1687470B1 EP 04790329 A EP04790329 A EP 04790329A EP 04790329 A EP04790329 A EP 04790329A EP 1687470 B1 EP1687470 B1 EP 1687470B1
Authority
EP
European Patent Office
Prior art keywords
yarn
effect
piecing
formation
spinning
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 - Fee Related
Application number
EP04790329A
Other languages
German (de)
English (en)
Other versions
EP1687470A1 (fr
Inventor
Iris Biermann
Wolfgang Doerner
Christoph Haase
Lorenz Kreitzen
Ralf Siewert
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
Oerlikon Textile 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 Oerlikon Textile GmbH and Co KG filed Critical Oerlikon Textile GmbH and Co KG
Publication of EP1687470A1 publication Critical patent/EP1687470A1/fr
Application granted granted Critical
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Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/48—Piecing arrangements; Control therefor
    • D01H4/50—Piecing arrangements; Control therefor for rotor spinning
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/34—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns

Definitions

  • the invention relates to a method according to the preamble of claim 1 and an effect yarn according to the preamble of claim 7.
  • Fancy yarns can also be produced on rotor spinning machines.
  • the fiber supply to the opening roller of the rotor spinning device can be changed by the speed of the feed rollers is varied.
  • the respective spinning station is usually supplied with a piecing unit which can be moved along the rotor spinning machine.
  • the normal yarn course is changed at the spinning station for piecing and taken over the control of the yarn formation of piecing.
  • the thread can be pulled off, for example, from the spinning rotor of take-off rolls, which are controlled by the piecing unit.
  • the take-off speed follows the increase in the rotor speed.
  • the thread is returned to the normal threadline at the spinning station. With the yarn transfer, the piecing process is completed.
  • the control of the yarn formation is again taken over by the control device of the spinning station or the associated group control.
  • the program for the formation of effects starts again from this point on.
  • the piecing area is followed by yarn with effect formation.
  • the invention is based on the recognition that a yarn section of constant diameter in the finished product, e.g. in a fabric, to which the effect yarn is processed, can be visually recognizable and perceived as an imperfection, which means a lack of quality.
  • the drive clutch is separated and the drive mechanically via a drive cone directly from the piecing performed so that form the corresponding effects.
  • Fig. 1 shows a spinning station 1 of an open-end rotor spinning machine.
  • the spinning station 1 has a resolving device 2, in which by means of Feed roller 4 a sliver 5 is introduced.
  • the drive of the feed roller 4 is effected by the continuously variable feed motor 3.
  • the sliver 5 is presented to a rotating in the housing 6 opening roller 7, which dissolves the fed sliver 5 into individual fibers 8.
  • the separated fibers 8 pass through the fiber guide channel 9 on the tapered sliding surface 10 of a spinning rotor 11 and from there into the fiber collecting groove 12. From the fiber collecting groove 12, the yarn is withdrawn through the thread withdrawal tube 17 in the direction of arrow 18 by means of a take-off device 19.
  • the effects of the effect yarn 16 can be determined by appropriate driving of the feed motor 3. By different Faserd.00 mecanic in the fiber collecting groove 12, the withdrawn from the fiber collecting groove 12 effect yarn 16 has the effects.
  • the spinning rotor 11 is mounted on a shaft 13 which is mounted in a pulley bearing 14 and driven by a tangential belt 15.
  • the take-off device 19 for the spun yarn has a pair of rollers. During normal spinning operation, the effect yarn 16 follows the take-off device 19 of the interrupted line 16A and is continuously wound onto a cross-wound bobbin, not shown here.
  • the spinning stations are each supplied with a piecing unit movable along the rotor spinning machine, which performs the piecing operation. The piecing is not shown here for reasons of simplification.
  • the effect yarn 16 is partially guided in the piecing unit, which is indicated schematically by the Garnausschung between the take-off device 19 and a yarn guide 20.
  • Fancy yarn 16 extends in the piecing unit not shown here between two further yarn guides 21 and 22 by a sensor device 23, with which the yarn diameter is continuously measured during the piecing process.
  • the test signals for the length-related yarn diameter measured values are fed to a controller 24 of the piecing unit.
  • the yarn guide 20 is a cleaner 25 downstream in the yarn path.
  • the cleaner 25 comprises a sensor device and a cutting device.
  • the check of the yarn diameter is carried out during the run-up of the spinning rotor 11 on the accelerated effect yarn 16.
  • the measuring frequency of the sensor device 23 can be adjusted to the changing speed of the accelerated effect yarn 16
  • 27 pulses are picked up by the driven by a drive 26 thread take-off roller of the drawing device 19 by means of a sensor. These pulses provide information about the take-off speed of the effect yarn 16.
  • the sensor signals are fed to the control device 24, which controls the measuring frequency of the sensor 27 and adapts it to the Garnabzugs horr.
  • the determination of the yarn speed can alternatively take place, for example, by contactless measurement directly on the yarn.
  • the control device 24 is connected to a control device 28 of the spinning station 1.
  • the control device 28 is connected via the line 29 with other modules of the spinning machine.
  • the fancy yarn 16 is shown in the form of a curve 30, which has been formed from a juxtaposition of the continuously detected yarn diameter measured values of the fancy yarn 16. In order to make the web thickness and the different effect thicknesses more recognizable, these are shown as being excessively high compared to the yarn length. On the ordinate of the coordinate system of FIG. 2 the diameter D of the effect yarn 16 is given in percent. The value 100% corresponds to the web thickness, which is always the same in the exemplary embodiment.
  • the yarn length L of the fancy yarn 16 in mm is indicated on the abscissa of the coordinate system.
  • the portion of the fancy yarn 16 comprising the piecer 31 represented by the course of the curve 30 has a length of about one meter.
  • the last effect 32 is shown before the end of the effect yarn 16 which is returned to piecing.
  • the part of the web 33 following the effect 32 has been introduced as a yarn end into the spinning rotor 11 for piecing.
  • the effect 32 has an effect thickness of 150% of the web thickness.
  • the line 34 indicates the point at which the formation of the effect yarn 16 was interrupted according to the specifications of the yarn repeat. This is followed by the piecer 31 and then the web 35.
  • the line 36 indicates the point at which the formation of the effect yarn 16 was continued according to the specifications of the yarn repeat.
  • On the Web 35 follows the first effect 37 in the effect yarn 16, which has been formed in continuation of the yarn repeat.
  • the effect 37 has an effect thickness of 130% of the web thickness.
  • the effect 39 has an effect thickness of 125% of the web thickness.
  • the web 40 and the third effect 41 follows.
  • the third effect 41 has an effect thickness of 150% of the web thickness.
  • the web lengths of the webs 33, 35, 38, 40 and the effects 32, 37, 39, 41 are formed as the effect thicknesses in each case according to the specification of the yarn repeat.
  • the yarn repeat may be stored in the controller 28, for example.
  • the location of the yarn repeat at which the formation of the effect yarn 16 has been interrupted according to the specifications of the yarn repeat is also stored by the control device 28.
  • the piecing process is initiated and controlled during piecing the fiber feed into the spinning rotor 11 via the feed motor 3, that the piecer 31 can be formed.
  • the formation of the piecemeal 31 immediately follows the formation of the effect yarn 16 according to the specifications of the yarn repeat. On the effect formation can be acted in addition to the control of the feed motor 3 on the change of other parameters such as the yarn rotation.
  • the formation of the effect yarn 16 according to the specifications of the yarn repeat is continued with the formation of the web on or before which the yarn break was completed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

L'invention a pour objet la production d'un fil à effet sur une machine de filature à rotor à extrémité ouverte, formé d'une suite alternée de sections de fil et d'effets qui consistent en des épaississements prédéterminés. A cet effet, après une interruption, le fil est rattaché par un rattacheur puis un effet est formé dans la zone de rattachement du fil, située en aval du rattacheur. La qualité du fil ainsi obtenu est améliorée grâce à la suppression des variations indésirables du rapport de fil prédéterminé d'un fil à effet, liées aux zones de rattachement.

Claims (7)

  1. Procédé pour produire, sur une machine de filature équipée d'un rotor à fibres libérées, un fil à effets contrastés comprenant, en alternance, un alignement d'âmes et d'effets contrastés constitués par des régions épaissies préétablies, procédé dans lequel ledit fil à effets contrastés est rattaché, au moyen d'un rattacheur, après avoir subi des interruptions,
    caractérisé par le fait
    qu'une formation d'effets contrastés a lieu, dans ledit fil, dans la zone de rattachement qui succède audit rattacheur (31) et inclut la phase de fonctionnement à plein régime dudit rotor de filage (11).
  2. Procédé selon la revendication 1, caractérisé par le fait que la formation d'effets contrastés est coordonnée avec le fonctionnement à plein régime du rotor de filage (11), de manière à obtenir le même profil d'effets contrastés et de longueur d'âmes que celui auquel donne naissance le processus de filage.
  3. Procédé selon la revendication 1 ou 2, caractérisé par le fait que la formation d'effets contrastés est pilotée, dans la zone de rattachement, par un groupe d'amorçage du filage qui peut être déplacé le long de la machine de filature à rotor à fibres libérées.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé par le fait que la formation d'effets contrastés s'opère par le biais de la commande d'un moteur d'insertion (3).
  5. Procédé selon l'une des revendications 1 à 4, caractérisé par le fait que la formation d'effets contrastés s'opère dans la continuité d'un rapport de fil désorganisé suite à l'interruption dudit fil.
  6. Procédé selon l'une des revendications 1 à 5, caractérisé par le fait que la formation d'effets contrastés débute, en aval du rattacheur (31), par la formation d'une âme (35).
  7. Fil à effets contrastés comprenant, en alternance, un alignement d'âmes et d'effets contrastés constitués par des régions épaissies préétablies, caractérisé par le fait que ledit fil (16) à effets contrastés présente également des effets contrastés (37, 39, 41) dans la zone de rattachement dudit fil qui est située dans la succession directe d'un rattacheur (31).
EP04790329A 2003-11-21 2004-10-13 Procede pour produire un fil a effet sur une machine de filature a rotor a extremite ouverte, et fil a effet correspondant Expired - Fee Related EP1687470B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10354608A DE10354608A1 (de) 2003-11-21 2003-11-21 Verfahren zur Herstellung eines Effektgarnes auf einer Offenend-Rotorspinnmaschine und Effektgarn
PCT/EP2004/011449 WO2005052231A1 (fr) 2003-11-21 2004-10-13 Procede pour produire un fil a effet sur une machine de filature a rotor a extremite ouverte, et fil a effet correspondant

Publications (2)

Publication Number Publication Date
EP1687470A1 EP1687470A1 (fr) 2006-08-09
EP1687470B1 true EP1687470B1 (fr) 2010-12-08

Family

ID=34585243

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04790329A Expired - Fee Related EP1687470B1 (fr) 2003-11-21 2004-10-13 Procede pour produire un fil a effet sur une machine de filature a rotor a extremite ouverte, et fil a effet correspondant

Country Status (5)

Country Link
US (1) US7454889B2 (fr)
EP (1) EP1687470B1 (fr)
CN (1) CN1882729B (fr)
DE (2) DE10354608A1 (fr)
WO (1) WO2005052231A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2539341C3 (de) * 1975-09-04 1978-04-27 Saurer-Allma Gmbh, Allgaeuer Maschinenbau, 8960 Kempten Programmsteuerung fur Effektzwirn- und -Spinnmaschinen
DE2657096A1 (de) * 1976-12-16 1978-06-22 Bernd Messing Verfahren und vorrichtung zur herstellung von dekorgarnen mittels eines offen-end-spinnverfahrens
DE3536827A1 (de) * 1985-10-16 1987-04-16 Schubert & Salzer Maschinen Verfahren und vorrichtung zur herstellung eines effektgarnes auf offenend-spinnvorrichtungen
DE3716728A1 (de) * 1987-05-19 1988-12-01 Schlafhorst & Co W Verfahren und vorrichtung zum ueberwachen der anspinner in einem oe-spinnaggregat
DE4030100C2 (de) 1990-09-22 2000-03-23 Schlafhorst & Co W Verfahren und Einrichtung zum Bestimmen der Änderungen von Kriterien eines automatischen Anspinnvorgangs
DE4124571A1 (de) * 1991-07-24 1993-01-28 Bengt Prof Edberg Verfahren und vorrichtung zum herstellen von effektgarn durch oe-spinnen
US5509261A (en) * 1993-03-26 1996-04-23 W. Schlafhorst Ag & Co. Stepping motor arrangement for driving a silver feed roller in a rotor spinning machine
DE10059967B4 (de) * 2000-12-02 2013-03-28 Rieter Ingolstadt Gmbh Verfahren und Anordnung zum Überwachen eines Fadenansetzers an einer Spinnmaschine
CN1091813C (zh) * 2000-12-29 2002-10-02 东华大学 转杯纺竹节纱的方法和纺纱装置
DE10327370A1 (de) * 2003-06-18 2005-01-13 Rieter Ingolstadt Spinnereimaschinenbau Ag Verfahren und Vorrichtung zum Anspinnen eines Fadens in einer Offenend-Spinnvorrichtung

Also Published As

Publication number Publication date
WO2005052231A1 (fr) 2005-06-09
EP1687470A1 (fr) 2006-08-09
US7454889B2 (en) 2008-11-25
CN1882729A (zh) 2006-12-20
CN1882729B (zh) 2012-05-23
DE502004011980D1 (de) 2011-01-20
US20070151224A1 (en) 2007-07-05
DE10354608A1 (de) 2005-06-16

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