EP1225258B1 - Procédé pour fabriquer des filés de fibres - Google Patents

Procédé pour fabriquer des filés de fibres Download PDF

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Publication number
EP1225258B1
EP1225258B1 EP01126731A EP01126731A EP1225258B1 EP 1225258 B1 EP1225258 B1 EP 1225258B1 EP 01126731 A EP01126731 A EP 01126731A EP 01126731 A EP01126731 A EP 01126731A EP 1225258 B1 EP1225258 B1 EP 1225258B1
Authority
EP
European Patent Office
Prior art keywords
thread
spinning
centrifuge
process according
stage
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
EP01126731A
Other languages
German (de)
English (en)
Other versions
EP1225258A1 (fr
Inventor
Karl Dr.-Ing. Koltze
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
Saurer 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 Saurer GmbH and Co KG filed Critical Saurer GmbH and Co KG
Publication of EP1225258A1 publication Critical patent/EP1225258A1/fr
Application granted granted Critical
Publication of EP1225258B1 publication Critical patent/EP1225258B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
    • D01H15/004—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing for centrifugal spinning machines

Definitions

  • centrifugal spinning is a well known one Spinning process.
  • centrifugal spinning a distinction is made between two different types of spinning, the one-step spinning and the so-called two-stage spinning.
  • a feed material either a sliver stored in a spinning can or a sliver of fiber as a roving bobbin, is warped in a drafting system in accordance with the desired yarn count and conveyed via an axially displaceable thread guide tube into a spinning centrifuge rotating at high speed.
  • the template material emerging from the mouth of the thread guide tube lies against the inner wall of the centrifuge, forming a thread leg, and is carried along by it. This means that the fiber material is rotated by the rotation of the centrifuge.
  • the thread created by the rotation is given by the axially displaceably mounted thread guide tube on the Filed inner centrifuge wall and forms one there so-called yarn cake.
  • the centrifuge speed and the delivery speed of the stock material are matched to one another in such a way that the thread deposited as a yarn cake already has its full rotation and can be wound in a subsequent work step onto a rewinding tube inserted into the centrifuge.
  • the spinning bobbin created during this rewinding process is later rewound onto a large-volume cheese on a winder connected downstream in the production process.
  • the centrifuge speed and delivery speed of the stock material are selected so that the thread deposited on the inner wall of the centrifuge in the first spinning stage initially only has a part of its final rotation.
  • the partially twisted thread which is stored as a yarn cake, receives the missing twist when it is drawn off from the spinning centrifuge in a second spinning stage and is thereby wound directly onto a package on a winding device.
  • a centrifuge spinning / winding machine is known from DE 40 00 059 A1, the workstations of which each have, inter alia, a spinning centrifuge and an associated winding device.
  • the known device works according to the two-stage spinning process described above. This means that the thread is first partially twisted in a first spinning stage. At the end of the first spinning stage, the feed material is separated in the area of the drafting system. The yarn end of the partially twisted yarn connected to the yarn cake is sucked into a buffer via an injector. The thread end stored in the intermediate store is then connected in a splicing device to a completely twisted thread end retrieved by the cross-wound bobbin. The second spinning stage is then initiated by correspondingly driving the cheese. In this second spinning stage, the partially drawn thread, which has been deposited as a yarn cake in the spinning centrifuge, is pulled out of the centrifuge, provided with its final rotation and wound onto the package.
  • a disadvantage of these known methods is that the yarn connection created in the splicing device, in particular with regard to the yarn structure, always differs significantly from a "normally" spun thread. That is, with the known device it is not possible to produce yarn connections of the same yarn.
  • the Invention Based on the aforementioned prior art, the Invention based on the task, especially for two-stage working spinning centrifuges to develop a process that to improve the yarn quality, especially in the area the connection points, the yarn ends.
  • this object is achieved by a method as described in claim 1.
  • the method according to the invention has the particular advantage that the structure of the junction of two thread ends is almost the same. This means that the new thread is also very similar to yarn in the area of its connection points with regard to fiber orientation / fiber extension / rotation across the cross section. Since the quality criterion "splice-free yarn length" no longer exists due to the production of quasi-equal connection points, the invention also makes it possible to considerably reduce the centrifuge fillings or the centrifuge sizes and thus to achieve a significant saving in drive energy. This means that the method according to the invention leads not only to an increase in the quality of the yarn produced but also to an improvement in the economy of the centrifuge spinning machines concerned.
  • the thread end of the Cross wound bobbin of thread, as in claim 2 set out in a before applying to the original material known preparation device edited.
  • Another way to prepare the thread end is to thin the thread end as described in claim 4.
  • the thread end can also be thinned out in a special preparation tube, which is equipped, for example, with comb-like elements, against which the thread end is struck or along which the thread end is pulled.
  • An alternative way of ensuring that the thread end of the thread unwound from the cross-wound bobbin has less twist than the regular thread before being spun into the stock material is to pull the thread at an increased speed at the end of the second spinning stage (claim 5).
  • the thread, especially the thread end receives less rotation, which later has a positive effect on the connection point during the piecing process.
  • the thread end can be prepared for the subsequent yarn connection process according to the invention by briefly increasing the draft of the drafting unit both during the piecing phase at the beginning of the first spinning stage and at the end of the first spinning stage.
  • the pair of output rollers of the drafting system can be operated for a short time at an increased delivery speed.
  • FIG. 1 is a job schematically Centrifugal spinning / winding machine shown. Such jobs have in addition to one Centrifuge spinning device 1 also a winding device 14 on.
  • Such centrifuge spinning devices 1 known per se generally have a spinning centrifuge 3 which is supported by bearings 4 in a centrifuge housing 2 and is driven by an electric motor 5.
  • the bearings 4 can be designed, for example, as magnetic bearings and in such a case support the spinning centrifuge 3 without contact.
  • a thread guide tube 7 can be lowered, which, when acted upon by a schematically indicated drive 8, executes oscillating movements and at the same time can be raised or lowered in the axial direction.
  • the feed material 6, which was previously drawn to the desired yarn fineness in a drafting device 9 enters the spinning centrifuge 3, is twisted there and deposited as a yarn cake 12 on the inner wall 13 of the spinning centrifuge 3.
  • the spinning device 14 has, as usual, a bobbin frame 25 for rotatably holding a package 15 and a thread guide drum 16 for frictionally driving the package 15.
  • the thread guide drum 16 also ensures the traversing of the finished spun thread 17 during winding onto the cheese 15.
  • a thread preparation device 18 can also be installed, for example in the region of the winding device 14.
  • the thread end of the already completely twisted thread 17 is processed before it is placed against the original material 6, for example by means of a pneumatically actuated preparation tube 19.
  • the thread preparation device 18 is connected to a positive pressure source (not shown), for example via a pneumatic line 20.
  • the drawn original material 6 delivered via the drafting device 6 is conveyed into the spinning centrifuge 3 via the thread guide tube 7, partially twisted and deposited as a yarn cake 12 on the inner wall 13 of the spinning centrifuge 3.
  • the delivery speed of the original material 6 and the rotation speed of the spinning centrifuge 3 are chosen so that the thread 11 deposited as a yarn cake 12 receives only part of its final rotation.
  • FIG. 2 shows a situation in which the centrifuge spinning device 1 is running in the second spinning stage. That is, the partially twisted thread 11 deposited as yarn cake 12 in the spinning centrifuge 3 is drawn off from the spinning centrifuge 3 via the pair of output rollers 10 of the drafting device 9 and thereby receives its final rotation. The drawn-off, finished thread 17 is immediately wound onto a large-volume cheese 15 on the winding device 14.
  • the thread end of the thread 17 connected to the package 15 is spun into the stock material 6 in front of the pair of output rollers 10.
  • the thread end of the thread 17 previously processed in the thread preparation device 18, for example by combing out or untwisting is conveyed in the direction of the spinning centrifuge 3 by the output roller pair 10 of the drafting device 9 running in the conveying direction F and is thereby spun into the stock material 6.
  • FIGS. 4a and 4b works as follows:
  • a so-called sliver stop device 21 is triggered, for example, which prevents the further delivery of the original material 6.
  • the non-driven pressure roller 22 is pivoted about its pivot axis 23 in such a way that it comes to rest on a withdrawal roller 24 rotating in the withdrawal direction A.
  • the take-off roller 24 rotating in take-off direction A in conjunction with the pressure roller 22 lying thereon, ensures that the thread 11 deposited as yarn cake 12 is pulled out of the spinning centrifuge 3 and thereby completely twisted. With this device too, the finished thread 17 is wound in a winding device 14 onto a cheese 15.

Landscapes

  • 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)

Claims (9)

  1. Procédé pour fabriquer un filé de fibres (17) au moyen d'une centrifugeuse de filature (3) fonctionnant à deux niveaux, d'un banc d'étirage (9) pour laminer un matériau d'alimentation (6), d'un tube de guidage de fil (7) monté de façon à pouvoir coulisser en direction axiale, qui s'étend dans la centrifugeuse de filature (3), ainsi que d'un dispositif de bobinage (14) pour enrouler une bobine croisée (15),
       caractérisé en ce que, peu avant la fin du premier niveau de filature, une extrémité de fil préparée d'un fil (17) déroulé à partir de la bobine croisée (15) est à chaque fois agencée en amont d'une paire de cylindres délivreurs (10) du banc d'étirage (9) sur le matériau d'alimentation (6) et jointe en filant à un fil partiellement torsadé (11) du premier niveau de filature ;
       en ce que le matériau d'alimentation (6) amené en plus est séparé et la direction d'avancement du fil est modifiée ; et
       en ce que, au deuxième niveau de filature, le fil partiellement filé (11) agencé dans la centrifugeuse de filature (3) en tant que masse de fil (12) est ensuite dévidé à partir de la centrifugeuse de filature (3) en lui imprimant une torsion supplémentaire et enroulé sur la bobine croisée (15).
  2. Procédé selon la revendication 1, caractérisé en ce que l'extrémité du fil (17) déroulé à partir de la bobine croisée (15) est traitée dans un dispositif de préparation (18) avant d'être jointe en filant au fil partiellement torsadé (11).
  3. Procédé selon la revendication 2, caractérisé en ce que l'extrémité du fil est au moins partiellement éliminée de l'extrémité du fil dans le dispositif de préparation (18).
  4. Procédé selon la revendication 2, caractérisé en ce que l'extrémité du fil est séparée dans le dispositif de préparation (18).
  5. Procédé selon la revendication 1, caractérisé en ce que le fil (17) est tiré à une vitesse accrue à la fin du deuxième niveau de filature et reçoit ainsi une rotation réduite.
  6. Procédé selon la revendication 1, caractérisé en ce que, pendant la phase de jonction en filant au premier niveau de filature, le retard du banc d'étirage (9) est augmenté pendant un bref moment.
  7. Procédé selon la revendication 1, caractérisé en ce que, à la fin du premier niveau de filature, le retard du banc d'étirage (9) est augmenté pendant un bref moment.
  8. Procédé selon la revendication 1, caractérisé en ce que, pour tirer le fil partiellement filé (11), agencé dans la centrifugeuse de filature (3) en tant que masse de fil (12), la direction de transport de la paire de cylindres délivreurs (10) du banc d'étirage (9) est modifiée de (F) à (A).
  9. Procédé selon la revendication 1, caractérisé en ce que, pour tirer le fil partiellement filé (11), agencé dans la centrifugeuse de filature (3) en tant que masse de fil (12), un rouleau de pression (22) de la paire de cylindres délivreurs (10) du banc d'étirage (9) est basculé sur un rouleau de tirage (24) tournant dans la direction de tirage (A).
EP01126731A 2001-01-23 2001-11-09 Procédé pour fabriquer des filés de fibres Expired - Lifetime EP1225258B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10102907 2001-01-23
DE10102907A DE10102907A1 (de) 2001-01-23 2001-01-23 Verfahren zum Herstellen eines Stapelfasergarnes

Publications (2)

Publication Number Publication Date
EP1225258A1 EP1225258A1 (fr) 2002-07-24
EP1225258B1 true EP1225258B1 (fr) 2004-03-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP01126731A Expired - Lifetime EP1225258B1 (fr) 2001-01-23 2001-11-09 Procédé pour fabriquer des filés de fibres

Country Status (7)

Country Link
US (1) US20020095927A1 (fr)
EP (1) EP1225258B1 (fr)
JP (1) JP2002220748A (fr)
CN (1) CN1367279A (fr)
DE (2) DE10102907A1 (fr)
ES (1) ES2214374T3 (fr)
RU (1) RU2002101299A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104695071A (zh) * 2015-02-28 2015-06-10 南通华强布业有限公司 一种负压式紧密纺搭头方法
CN110295422A (zh) * 2018-03-23 2019-10-01 株式会社丰田自动织机 离心式细纱机

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013067484A (ja) * 2011-09-21 2013-04-18 Murata Machinery Ltd 紡績機
JP6881345B2 (ja) * 2018-02-09 2021-06-02 株式会社豊田自動織機 ポット精紡方法およびポット精紡機
DE102018105933A1 (de) * 2018-03-14 2019-09-19 Maschinenfabrik Rieter Ag Verfahren zum Bilden einer Fadenschlaufe und zum Separieren eines anzusetzenden Fadenstücks und eines abzuführenden Fadenstücks, Druckrollereinheit sowie Saugdüse
JP7287126B2 (ja) * 2019-06-05 2023-06-06 株式会社豊田自動織機 ポット精紡機
JP7200835B2 (ja) * 2019-06-14 2023-01-10 株式会社豊田自動織機 ポット精紡機
DE102019116479A1 (de) * 2019-06-18 2020-12-24 Saurer Spinning Solutions Gmbh & Co. Kg Reibscheiben für eine Fadenverbindungsvorrichtung
CN114990744B (zh) * 2022-05-06 2023-05-16 宜城市天舒纺织有限公司 一种抗菌混纺纱高效生产装置和生产方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5830419B2 (ja) * 1975-10-08 1983-06-29 東レ株式会社 ゴウネンシノセイゾウソウチ
DD284489A5 (de) * 1989-05-26 1990-11-14 ��@���������@�������k�� Spinnspulmaschine zur herstellung von stapelfasergarn
DE4005788A1 (de) * 1990-02-26 1991-08-29 Palitex Project Co Gmbh Verfahren zum verfestigen und/oder zwirnen eines mit geringer fadenspannung aufgewickelten vorgarnes
DE4426897B4 (de) * 1994-07-29 2005-09-01 Saurer Gmbh & Co. Kg Verfahren zum Umspulen eines Spinnkuchens in einer Topfspinnvorrichtung
DE19531147A1 (de) * 1995-08-24 1997-02-27 Chemnitzer Spinnereimaschinen Zentrifugenspinn-Spulmaschine
DE19802653A1 (de) * 1998-01-24 1999-07-29 Schlafhorst & Co W Zentrifugenspinn-/Spulmaschine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104695071A (zh) * 2015-02-28 2015-06-10 南通华强布业有限公司 一种负压式紧密纺搭头方法
CN110295422A (zh) * 2018-03-23 2019-10-01 株式会社丰田自动织机 离心式细纱机
CN110295422B (zh) * 2018-03-23 2021-12-07 株式会社丰田自动织机 离心式细纱机

Also Published As

Publication number Publication date
DE10102907A1 (de) 2002-07-25
US20020095927A1 (en) 2002-07-25
ES2214374T3 (es) 2004-09-16
JP2002220748A (ja) 2002-08-09
DE50101756D1 (de) 2004-04-29
EP1225258A1 (fr) 2002-07-24
RU2002101299A (ru) 2003-07-20
CN1367279A (zh) 2002-09-04

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