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WO2003033788A2 - Dispositif de traitement de fils - Google Patents

Dispositif de traitement de fils Download PDF

Info

Publication number
WO2003033788A2
WO2003033788A2 PCT/EP2002/011175 EP0211175W WO03033788A2 WO 2003033788 A2 WO2003033788 A2 WO 2003033788A2 EP 0211175 W EP0211175 W EP 0211175W WO 03033788 A2 WO03033788 A2 WO 03033788A2
Authority
WO
WIPO (PCT)
Prior art keywords
yarn
channel
treatment device
projections
wall
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.)
Ceased
Application number
PCT/EP2002/011175
Other languages
German (de)
English (en)
Other versions
WO2003033788A3 (fr
Inventor
Marcus Keulen
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.)
DO-CERAM INGENIEURKERAMIK GmbH
Original Assignee
DO-CERAM INGENIEURKERAMIK GmbH
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 DO-CERAM INGENIEURKERAMIK GmbH filed Critical DO-CERAM INGENIEURKERAMIK GmbH
Priority to AU2002349330A priority Critical patent/AU2002349330A1/en
Publication of WO2003033788A2 publication Critical patent/WO2003033788A2/fr
Publication of WO2003033788A3 publication Critical patent/WO2003033788A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • D02G1/161—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam yarn crimping air jets

Definitions

  • the invention relates to a yarn treatment device, in particular for the air swirling of filament yarn, with at least one yarn channel, the inner wall of which has a yarn guide area, against which the yarn lies when it passes through the yarn channel.
  • the inner wall of the yarn channel consists of particularly wear-resistant material, for. B. made of highly wear-resistant ceramic.
  • the entire inner wall of the yarn channel is smoothly polished and has no projections protruding into the area of the yarn passage.
  • wall sticking effects can occur, in particular, when the yarn is passing very quickly. These wall-holding effects can be observed in particular on smoothly polished surfaces and are based on adhesion and the formation of electrostatic charges.
  • the wall adhesion effects are particularly intense with smooth yarns, in which the filaments run completely straight, with microfibres with dtx ⁇ 1 and with yarn speeds of over 7,000 per m / min.
  • the invention proposes, starting from the prior art of the type mentioned, that the inner wall of the yarn channel in the yarn guide area is provided with at least two projections projecting into the channel cross-section, against which the yarn passing through lies in such a way that it lies between the projections in is kept close to the inner wall.
  • the contact area between the yarn and the inner wall of the yarn channel is reduced to a minimum. Accordingly, the wall adhesion effects explained above are reduced, to an extent which is absolutely harmless for the passage of the yarn.
  • the contact surfaces between the yarn and the duct wall are particularly small, the wear at the contact points is more intensive.
  • this fact has hardly any negative impact on the high-quality materials available today. Because of the minimization of the sticking effect on the wall, the service life of the yarn treatment device according to the invention is even longer than that of the yarn guiding devices known according to the prior art, which, however, are still to be feared due to the sticking effect on the wall, namely filament breaks.
  • Protrusions are provided on which the yarn passes through the yarn channel is in contact.
  • a large number of points of contact arranged at a distance from one another are created along the yarn guide area, so that the wear is better distributed and the service life is extended accordingly without the wall-sticking effects explained above occurring.
  • Another advantage is that between the successive projections there are depressions in which the spinning oil stripped from the filament yarn passing through can collect in order to be subsequently absorbed again by the yarn passing through.
  • the yarn treatment device according to the invention thus has the particular advantage that less spinning oil is stripped from the yarn passing through. This is important insofar as the presence of spin oil is useful or even necessary in the downstream processes.
  • the projections are expediently designed as ribs running transversely to the channel axis. This has the advantage that similar guiding properties result over the entire width of the channel.
  • the ribs are curved in an arc in plan view. As a result, the ribs give the yarn sliding over them an additional guide directed in the middle of the channel.
  • the ribs can alternate inclined to the right and left in the direction of passage of the yarn and viewed in plan view.
  • the yarn on each rib experiences a guide force directed to the side, the direction of which reverses from rib to rib on each rib. This also results in the yarn being held approximately in the middle of the guide channel.
  • the projections are each slightly rounded in the apex. This prevents the yarn or individual filaments of the yarn from getting caught on the projections.
  • the yarn runs tangentially to the roundings and thus touches the individual projections approximately at a point, which reliably prevents any adhesion to the wall.
  • the projections in the apex region each have a flattening running in the direction of yarn passage. However, these flattenings are so short in the direction of yarn passage that wall adhesion effects cannot develop. However, they offer larger support surfaces for the thread passing through, which minimizes wear and improves the service life of the yarn treatment device.
  • a particularly preferred embodiment of the invention provides that a blowing nozzle which runs essentially transversely to the longitudinal axis of the channel opens into the center of the yarn guide channel.
  • a blowing nozzle which runs essentially transversely to the longitudinal axis of the channel opens into the center of the yarn guide channel.
  • the blowing nozzle expediently opens out in the area between two projections. This ensures that the continuous yarn opposite the blowing nozzle lies freely in space and can be set into vibration by the blowing jet and by the flow vortices caused by the blowing jet.
  • the swirls running along the inner wall of the yarn channel can engage under the yarn running between the projections at a distance from the wall, which likewise has a favorable effect on the swirling effect.
  • the blowing nozzle can also open out in the flattened apex region of a projection.
  • the continuous yarn is guided in the immediate vicinity of the blow nozzle and can therefore vibrate less freely. This can be advantageous if the above-mentioned vibrations are undesirable due to the special properties of the yarn.
  • the walls of the flow divider and the adjoining channel walls are expediently rounded following the course of the two eddies. As a result, the blown-in air is supplied to the yarn guide area even better.
  • Figure 1 shows a yarn treatment device according to the invention in longitudinal section.
  • FIG. 2 shows a cross section along the line II-II in FIG. 1;
  • Fig. 3 shows a longitudinal section through a
  • Fig. 4 shows a longitudinal section through a
  • Fig. 5 is a plan view of the
  • Fig. 6 is a plan view of the yarn guide area of a yarn treatment device according to the invention in a fifth
  • Fig. 7 shows a cross section through a
  • Yarn treatment device with a flow divider opposite the injection nozzle.
  • the yarn treatment device according to the invention shown only schematically in its essential parts in the drawing, has a channel block 1 consisting of highly wear-resistant ceramic and a cover block 3 which can be displaced in the direction of the double arrow 2 (shown in FIG. 2) and which is also made of wear-resistant ceramic.
  • a yarn channel 4 serving for yarn treatment which is formed as an indentation in the top of the channel block 1 and is closed at the top by the overlying cover block 3.
  • the cover block 3 By moving the cover block 3 to the left (shown in Fig. 2) in the open position, the channel 4 is exposed over its entire length upwards, so that the yarn can be inserted from above.
  • the cover block 3 is then moved back to the right into the closed position.
  • a blower nozzle 5 which can be acted upon by compressed air, opens into the yarn channel 4 approximately in the region of the center thereof, the compressed air of which whirls the filament yarn passing through the yarn channel.
  • the yarn guide area located at the bottom of the yarn channel 4 is provided with two projections 6 protruding into the channel cross-section, against which the yarn 7 passing through - shown in dash-dotted lines in the drawing - rests in such a way that that it is in the area between the two projections 6 at a close distance from the wall runs.
  • the yarn 7 is guided by appropriate yarn guides so that it lies against the yarn guide area located at the bottom of the yarn channel 4.
  • the projections 6 are designed as ribs which run transversely to the channel axis and are rounded at the top. At the roundings, the yarn 7 is tangential, i. H. punctiform. Thus, the wall adhesion effects occurring between the wall of the thread guide channel 4 and the yarn 7 are reduced to an absolute minimum.
  • the yarn channel 4 formed in the channel block 1 has in the yarn guide area, ie. H. on the bottom of the yarn channel 4 a large number of projections 8 arranged at a relatively close distance from one another, which are also designed as ribs rounded upwards.
  • Fig. 5 only the yarn guide area, ie the bottom of the yarn channel is shown in plan view.
  • the projections 11 shown in Fig. 5 also have the shape of rounded ribs, which are arcuate here, the centers of the arches each being in the middle of the channel bottom.
  • the thread 7 is centered as it passes through the yarn guide channel 4.
  • the compressed air flowing out of the yarn channel 4 experiences corresponding deflections.
  • the rounded ribs serving as projections alternately incline to the right and to the left as viewed in plan view of the yarn 7.
  • the running yarn 7 experiences executives alternately to the right and left as it runs over the successive projections 12.
  • the compressed air flowing through the yarn channel 4 is deflected.
  • the cover block 3 is provided on the side opposite the blowing nozzle 5 with a flow divider 13 extending in the direction of the channel axis and projecting into the center of the nozzle jet. This flow divider divides the compressed air jet emerging from the blowing nozzle 5 into two counter-rotating vortices.
  • the walls of the flow divider 13 and the adjoining channel walls of the yarn channel 4 are rounded, following the course of these eddies. This ensures that the compressed air blown in via the blowing nozzle 5 is returned along the channel walls to the bottom of the yarn channel 4, where it can easily grasp the continuous yarn 7 exposed between the projections from below.
  • the invention is also suitable for yarn guide channels without a blowing nozzle or with differently designed yarn treatment devices, specifically wherever the wall adhesion effects explained above are to be avoided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

L'invention concerne un dispositif de traitement de fils, notamment de tourbillonnement par air de fils continus. Ce dispositif comprend au moins un canal de fil (4) dont la paroi interne présente une zone de guidage de fil avec laquelle le fil (7) est en contact lorsqu'il passe dans le canal (4). L'invention vise à utiliser un tel dispositif de traitement de fils pour réduire les effets d'adhérence à la paroi entre le fil (7) et la zone de guidage de fil du canal (4). A cet effet, la paroi interne du canal (4) est dotée, dans la zone de guidage de fil, d'au moins deux protubérances (8) faisant saillie dans la section transversale du canal. Le fil traversant (7) est en contact avec ces protubérances de manière à être maintenu entre les protubérances à une faible distance de la paroi interne du canal (4).
PCT/EP2002/011175 2001-10-15 2002-10-04 Dispositif de traitement de fils Ceased WO2003033788A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002349330A AU2002349330A1 (en) 2001-10-15 2002-10-04 Yarn treatment device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10150357.1 2001-10-15
DE2001150357 DE10150357A1 (de) 2001-10-15 2001-10-15 Garnbehandlungsvorrichtung

Publications (2)

Publication Number Publication Date
WO2003033788A2 true WO2003033788A2 (fr) 2003-04-24
WO2003033788A3 WO2003033788A3 (fr) 2003-09-25

Family

ID=7702269

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/011175 Ceased WO2003033788A2 (fr) 2001-10-15 2002-10-04 Dispositif de traitement de fils

Country Status (3)

Country Link
AU (1) AU2002349330A1 (fr)
DE (1) DE10150357A1 (fr)
WO (1) WO2003033788A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010534284A (ja) * 2007-07-25 2010-11-04 エーリコン テクスタイル コンポーネンツ ゲゼルシャフト ミット ベシュレンクテル ハフツング マルチフィラメント糸を処理する装置
CN115003869A (zh) * 2020-01-31 2022-09-02 京瓷株式会社 纺丝喷嘴及纺丝装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4069565A (en) * 1974-11-28 1978-01-24 Toray Industries, Inc. Process and apparatus for producing textured multifilament yarn
JPS5212362A (en) * 1975-07-18 1977-01-29 Toray Industries Fluid treatment apparatus
US3978558A (en) * 1976-01-12 1976-09-07 J. P. Stevens & Co., Inc. Air jet yarn entanglement
SU1051140A1 (ru) * 1982-02-12 1983-10-30 Московский Ордена Трудового Красного Знамени Текстильный Институт Им.А.Н.Косыгина Устройство дл придани ложной крутки нити
CH674528A5 (fr) * 1987-09-23 1990-06-15 Heberlein & Co Ag
DE4410571A1 (de) * 1994-03-26 1995-10-19 Inst Textil & Faserforschung Verfahren und Vorrichtung zum Prüfen von verwirbelten Filamentgarnen
DE19546784C2 (de) * 1995-12-14 1999-08-26 Inventa Ag Vorrichtung zur relaxierenden Wärmebehandlung von Filamentgarnen aus synthetischen Polymeren
DE19700817C2 (de) * 1996-01-12 1999-02-11 Heberlein Fasertech Ag Verfahren und Verwirbelungsdüse zur Herstellung von spinntexturierten Filamentgarnen
GB9814476D0 (en) * 1998-07-04 1998-09-02 Fibreguide Ltd Yarn treatment jet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010534284A (ja) * 2007-07-25 2010-11-04 エーリコン テクスタイル コンポーネンツ ゲゼルシャフト ミット ベシュレンクテル ハフツング マルチフィラメント糸を処理する装置
CN115003869A (zh) * 2020-01-31 2022-09-02 京瓷株式会社 纺丝喷嘴及纺丝装置
CN115003869B (zh) * 2020-01-31 2023-05-12 京瓷株式会社 纺丝喷嘴及纺丝装置

Also Published As

Publication number Publication date
WO2003033788A3 (fr) 2003-09-25
DE10150357A1 (de) 2003-04-17
AU2002349330A1 (en) 2003-04-28

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