EP1295974B1 - Métier à filer à jet d'air avec un dispositif défibreur - Google Patents

Métier à filer à jet d'air avec un dispositif défibreur Download PDF

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Publication number
EP1295974B1
EP1295974B1 EP02012276A EP02012276A EP1295974B1 EP 1295974 B1 EP1295974 B1 EP 1295974B1 EP 02012276 A EP02012276 A EP 02012276A EP 02012276 A EP02012276 A EP 02012276A EP 1295974 B1 EP1295974 B1 EP 1295974B1
Authority
EP
European Patent Office
Prior art keywords
conveyor belt
roller
fibers
air
pick
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
EP02012276A
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German (de)
English (en)
Other versions
EP1295974A2 (fr
EP1295974A3 (fr
Inventor
Hans Raasch
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 EP1295974A2 publication Critical patent/EP1295974A2/fr
Publication of EP1295974A3 publication Critical patent/EP1295974A3/fr
Application granted granted Critical
Publication of EP1295974B1 publication Critical patent/EP1295974B1/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
    • 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
    • D01H4/02—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 imparting twist by a fluid, e.g. air vortex
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/11—Spinning by false-twisting
    • D01H1/115—Spinning by false-twisting using pneumatic means
    • 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
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
    • D01H4/32—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls using opening rollers

Definitions

  • the invention relates to an air spinning device with a Disintegrator for dissolving slivers after Preamble of claim 1.
  • open-end spinning processes such as the Rotor spinning
  • a sliver by means of an opening roller to Single fibers dissolved.
  • air spinning or in Open-end spinning processes such as friction spinning are for Prevention of fiber crushing usually desired that the fiber material all the way from the Feeding device of the opening roller to the trigger device of the thread can be constantly accelerated. In this way the fibers stay stretched.
  • a spinning process in the plurality of slivers are fed to an opening roller.
  • the dissolved fibers are perforated by a suctioned take-off roll removed from the opening roller.
  • the Individual fibers should not be slowed down at the transfer points, but be accelerated in the desired ideal case, to a Avoid compressing the fibers.
  • the take-off roller cooperates a friction roller together.
  • the fibers are in the gusset of pick-up roller and friction roller with twist distribution across deducted to the transport direction.
  • By the swirl generation creates a false twist, which is after the gusset from the Turn out fiber bandage. So that the fiber structure strength receives, after the gusset a pneumatic swirl nozzle. arranged. In the swirl nozzle to be detached fiber ends to be wound around the fiber core. By the dissolving False twist but the dissolution of fiber ends is disturbed. The yarn strength to be achieved in this way is low.
  • the of The combing with mittransport convinced fibers can anywhere a largely random place between the Surface of the opening roller or the foot of a Saw tooth set and the top of the combing elements lie.
  • the Removal from the clothing of the opening roller takes place in free flight, whereby the flight distance from the starting position of the Fibers in the clothing is dependent.
  • the generic DE 197 46 602 A1 is a spinning process can be seen in the slivers of an opening roller dissolved, the individual fibers taken over by a take-off roll and on the take-off roll a thin fiber fleece formed and is merged. It should be a spinnluntenumblen Anlagen Fiber Association emerge, by a co-operation of the Take-off roll formed nip line and one pneumatically operated swirl nozzle is supplied. The Merging the thin fiber fleece is through corresponding design of the absorbent insert in the take-off roll causes. The evacuated area of the take-off roll tapers in fiber transport direction. Such a merger of thin fiber fleece has only chance of success, if for the merging of the thin fibrous web sufficient long distance is available.
  • Hard-hanging fibers can also cause filament winding on the take-off roll and thereby significantly disrupt the function of the spinning device or even prevention. Due to the extensive evacuated surfaces, especially with two suctioned take-off rolls, arises high suction air consumption, the spinning process in his Profitability decisively impaired.
  • JP (A) 3-15 2223 is a friction spinning method known, in which a belt is used as collecting surface.
  • a belt is used as collecting surface.
  • An air extraction, at the Air is sucked through the belt is not recognizable or available. Even if no additional consuming Saugluftdes arises, the shown device disadvantages. From the collected Fibers formed fiber bond is through the friction belt given a rotation, the use of the device at an air spinning process, since the rotation in the Air spiders interfere and the yarn strength to be achieved low would hold.
  • the friction belt clamps on the Collection line of incoming fibers, so that the removal of the Rotation subject fiber structure is difficult.
  • the invention is based on the object, the known To improve devices for air spinning.
  • tangential to the take-off roll arranged conveyor belt is the change of fibers from the Pickup roller to the conveyor belt supported.
  • the perforated take-off roller into place produces the smallest distance from below coming air flow, which contributes to the detachment of the fibers from the take-off roll.
  • a conveyor belt according to claim 4 with a microrough Surface or claim 5 made of a material with a high Frictional value improves the absorption and entrainment of the fibers through the conveyor belt without releasing it from the conveyor belt to hinder.
  • An air-impermeable conveyor belt according to claim 6 prevents an unwanted disturbance from below in the Gusset-directed airflow and increases the safety of the Loosening process of the fibers from the take-off roll.
  • the air-spinning device according to the invention allows a economic and unhindered production of a yarn after the air spinning process and overcomes disadvantages known Devices.
  • the air spinning device 1 shown in Figure 1 has a Fiber dissolving device 2 with feed roller 3, feed trough 4 and opening roller 5.
  • feed roller 3 and feed trough 4 formed nip and is the Opening roller 5 fed.
  • three slivers are presented side by side, as seen from Figure 2 can be seen.
  • the feed roller 3 is in the usual way driven by a motor 7 via a toothed belt 8, wherein the speed is infinitely adjustable.
  • the opening roller 5 is on its circumference with trained as needles 9 combing elements occupied. In an alternative training, not shown the opening roller 5 is equipped with combing elements, the be formed by a shegeieredrahtgarnitur.
  • the supplied fiber material is after passing the nip detected by the needles 9 of the rotating opening roller 5 and taken.
  • the jacket of the opening roller 5 has a plurality of holes 10, each between the needles 9 are arranged.
  • a fixed stationary suction insert 11 is arranged, which is connected to a Simplification reasons, not shown vacuum source connected.
  • the suction insert 11 is in a Area, which is about a quarter of the circumference of the opening roller. 5 covers and extends from the combing point to the transfer point or up to the feed zone of the fibers to the Pickup roller 12 extends, a vacuum applied.
  • the of the needles 9 detected and from the fiber structure of the Material template leached fibers are passed through to the Suction holes 10 adjacent negative pressure.
  • the to the air duct 17 flowing air supports the acquisition of the Fibers from the opening roller 5 on the take-off roller 12, and the to the air duct 18 flowing air assists the detachment of Fibers from the pickup roller 12.
  • the conveyor belt 15 runs paraxial and tangential to the take-off roll 12 in one Distance of 0.4 mm.
  • the Air swirl nozzle 20 By means of the air swirl nozzle 20 is caused that the Fiber structure with a continuous fiber strand around rotating air flow is applied. It will be Fibers are splayed from the fiber structure and the so-called Core fibers wound.
  • the principle of such Air-spinning method is for example from DE 197 46 602 A1 known.
  • the thread 21 passes through a Discharge device 22, wherein the take-off rolls 23 and 24 a Form clamping point.
  • the so spun thread 21 is on a wound cheese, not shown.
  • the drive of the Opening roller 5 and the take-off roller 12 is performed by the Motor 25 and over the belt 26.
  • the belt 26 drives over the Transmission device 27, the conveyor belt 15 and by means of Belt 28, the take-off rollers 23 and 24 at.
  • Opening roller 5, Take-off roller 12, conveyor belt 15 and the take-off rollers 23 and 24 have one of the opening roller 5 to the Discharge device 22 each slightly rising Velocity of circulation. The gear ratios remain the same for every spinning speed.
  • the needled opening roller 5 in Compared to opening rollers, as in rotor spinning be used, is relatively wide. Adapted to this width, are simultaneously arranged three side by side Sliver 6 of the feed roller 3 fed.
  • the conveyor belt 15 passes over the guide rollers 29 and 30 and is arranged so that it is along the entire perforated working width of the take-off roll 12 extends.
  • the Pinch roller 31 presses resiliently against the guide roller 29th or the conveyor belt 15.
  • the fibers dissolve from the take-off roller 12, are thereby from the conveyor belt 15 in their direction of movement by 90 degrees and turned to one collected strand-like fiber structure.
  • the fiber strand follows the deflection of the conveyor belt 15 on the guide roller 29 to to the nip between the guide roller 29 and pinch roller 31.
  • Die Air swirl nozzle 20 protrudes into the gusset, the of the Deflection roller 29 and the pinch roller 31 is formed.
  • On the Connecting piece 32 is the air swirl nozzle 20 with a not connected compressed air source connected.
  • the compressed air is used the generation of the rotating air flow, with which the Fiber structure in the air swirl nozzle 20 is acted upon.
  • Air pressure during spinning is 5 to 9 bar.
  • Connecting piece 33 is connected to a vacuum source.
  • About the connecting piece 33 fibers are sucked, the at Spinning or spinning while spinning.
  • the negative pressure for the suction of the occasional detached from the fiber structure Fibers during spinning is about 20 mbar.
  • the pinch roller 31 is from the conveyor belt 15th lifted.
  • the suction flow causes the fibers of the first Deflection of the conveyor belt 15 to follow the guide roller 29 and then sucked into the air swirl nozzle 20.
  • the previously order the lifted pinch roller 31 is directed. If the of Conveyor belt 15 extracted fiber composite together with the Anspinnfaden the air swirl nozzle 20 passes through, is the Pinch roller 31 is applied to the conveyor belt 15, the Compressed air supply to act on the fiber structure with a rotating air flow and the negative pressure the vacuum source instead of 100 mbar to about 20 mbar set.
  • the fibers connect to the piecing path.
  • the supply of the Yarn is terminated after the spinning process is started Has.
  • the narrow sliver will be even further into the Air swirl nozzle 20 sucked in after the pinch roller 31 again was applied to the conveyor belt 15.
  • the fibers also follow without suction air further the deflection of the conveyor belt 15, because the Umlenkweg is much shorter than the staple length the fibers. Also included in the fiber structure shortened fibers Therefore, make the diversion, because they are of the longer ones Guided or supported fibers.
  • the Discharge device 22 is synchronous with the application of the Pinch roller 31 is activated to the conveyor belt 15 by the Take-off roller 23 is applied to the driven take-off roll 24 becomes.
  • the thread 21st After passing through the extraction device 22, the thread 21st a winding device, not shown, for manufacturing fed to a cross-wound bobbin.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (7)

  1. Métier à filer à jet d'air doté d'un dispositif défibreur (2) pour défibrer des rubans de fibres (6) jusqu'à obtenir des fibres individuelles, qui comporte un dispositif d'alimentation et un cylindre défibreur (5), d'un rouleau de réception perforé (12) qui prend en charge les fibres provenant du cylindre défibreur (5) qui sont orientées dans la direction de la rotation du rouleau de réception (12), ainsi que d'un dispositif de transport supplémentaire pour évacuer les fibres du rouleau de réception (12) et les emporter vers un point de serrage en aval duquel est placée une buse de torsion à turbulence (20) destinée à former un fil, caractérisé en ce que l'élément de transport est réalisé en tant que bande transporteuse (15) qui est disposée parallèlement à l'axe du rouleau de réception (12) et en aval de la zone d'alimentation des fibres prises en charge par le cylindre défibreur (5), en formant un triangle, en ce que l'écart le plus faible entre la bande transporteuse (15) et le rouleau de réception (12) est choisi de telle sorte que les fibres amenées par le rouleau de réception (12) soient prises en charge par la bande transporteuse (15) via un contact mécanique, et en ce que la bande transporteuse (15) est entraínée de manière à faire dévier les fibres d'environ 90° et à les transporter vers le point de serrage.
  2. Métier à filer à jet d'air selon la revendication 1, caractérisé en ce que la bande transporteuse (15) est disposée tangentiellement au rouleau de réception (12).
  3. Métier à filer à jet d'air selon la revendication 1 ou 2, caractérisé en ce que l'écart le plus faible est compris entre 0,2 mm et 0,7 mm.
  4. Métier à filer à jet d'air selon l'une des revendications précédentes, caractérisé en ce que la bande transporteuse (15) présente au moins sur la face tournée vers les fibres une surface microrugueuse.
  5. Métier à filer à jet d'air selon l'une des revendications précédentes, caractérisé en ce que la matière dont est composée la bande transporteuse (15) est une matière possédant un coefficient de friction élevé.
  6. Métier à filer à jet d'air selon l'une des revendications précédentes, caractérisé en ce que la bande transporteuse (15) est conçue de façon à être imperméable à l'air.
  7. Métier à filer à jet d'air selon l'une des revendications précédentes, caractérisé en ce que l'entraínement de la bande transporteuse (15) est conçu de telle sorte que la vitesse de la bande transporteuse (15) soit légèrement supérieure ou égale à la vitesse périphérique du rouleau de réception (12).
EP02012276A 2001-09-21 2002-06-05 Métier à filer à jet d'air avec un dispositif défibreur Expired - Lifetime EP1295974B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10146608 2001-09-21
DE10146608A DE10146608A1 (de) 2001-09-21 2001-09-21 Luftspinnvorrichtung

Publications (3)

Publication Number Publication Date
EP1295974A2 EP1295974A2 (fr) 2003-03-26
EP1295974A3 EP1295974A3 (fr) 2003-07-23
EP1295974B1 true EP1295974B1 (fr) 2005-09-14

Family

ID=7699825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02012276A Expired - Lifetime EP1295974B1 (fr) 2001-09-21 2002-06-05 Métier à filer à jet d'air avec un dispositif défibreur

Country Status (5)

Country Link
US (1) US6745553B2 (fr)
EP (1) EP1295974B1 (fr)
CN (1) CN1408909A (fr)
CZ (1) CZ20022317A3 (fr)
DE (2) DE10146608A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE503861C2 (sv) 1994-10-24 1996-09-23 Perstorp Flooring Ab Förfarande för framställning av en golvlist
CN1882728B (zh) * 2003-09-12 2010-09-01 里特机械公司 并条-头道粗纱联合机和用于从纤维组中制造粗纱的方法
JP2007505226A (ja) * 2003-09-12 2007-03-08 マシーネンファブリク　リーター　アクチェンゲゼルシャフト 空気精紡法によって粗紡糸を製造するための練条機・粗紡機組み合わせ体
US20100307125A1 (en) * 2009-06-08 2010-12-09 Niederer Kurt W Fiber-twist-spinning
BG111027A (en) * 2011-09-03 2013-03-29 Et-"D-A-Dinko Bahov" ахов"ЕТ-"Д-А-Динко Б Method and apparatus for obtaining a yarn from a strand in a single process of extrusion, withdrawal and sizing

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03152223A (ja) 1989-11-08 1991-06-28 Murata Mach Ltd 精紡機
DE4018702A1 (de) * 1990-06-12 1992-01-02 Fritz Stahlecker Vorrichtung zum verspinnen von stapelfasern zu einem garn
DE19601038A1 (de) 1996-01-13 1997-07-17 Fritz Stahlecker Verfahren zum Offenend-Spinnen
DE19610960A1 (de) 1996-03-20 1997-09-25 Fritz Stahlecker Verfahren zum Offenend-Spinnen
DE19613192A1 (de) * 1996-04-02 1997-10-09 Fritz Stahlecker Vorrichtung zum Offenend-Spinnen
DE19727575C2 (de) * 1997-06-28 2003-11-06 Zinser Textilmaschinen Gmbh Verfahren zum Herstellen eines textilen Garnes und Vorrichtung
DE19746602B4 (de) * 1997-10-22 2008-05-29 Maschinenfabrik Rieter Ag Spinnverfahren
DE19748615A1 (de) * 1997-11-04 1999-05-06 Fritz Stahlecker Verfahren zum Offenend-Spinnen
DE19850518A1 (de) 1998-11-03 2000-05-04 Schlafhorst & Co W Vorrichtung zum Auflösen von Faserbändern
DE10101660A1 (de) * 2001-01-10 2002-07-11 Fritz Stahlecker Spinnvorrichtung

Also Published As

Publication number Publication date
US20030056488A1 (en) 2003-03-27
US6745553B2 (en) 2004-06-08
EP1295974A2 (fr) 2003-03-26
DE10146608A1 (de) 2003-04-10
CN1408909A (zh) 2003-04-09
DE50204241D1 (de) 2005-10-20
CZ20022317A3 (cs) 2003-05-14
EP1295974A3 (fr) 2003-07-23

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