WO2008095631A1 - Dispositif de filage à air - Google Patents

Dispositif de filage à air Download PDF

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Publication number
WO2008095631A1
WO2008095631A1 PCT/EP2008/000701 EP2008000701W WO2008095631A1 WO 2008095631 A1 WO2008095631 A1 WO 2008095631A1 EP 2008000701 W EP2008000701 W EP 2008000701W WO 2008095631 A1 WO2008095631 A1 WO 2008095631A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
group
spinning
spinning device
blasluftdüsen
Prior art date
Application number
PCT/EP2008/000701
Other languages
German (de)
English (en)
Inventor
Francesc Cano Casas
Jose-Antonio Tornero-Garcia
Thomas Weide
Original Assignee
Oerlikon Textile Gmbh & 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 & Co. Kg filed Critical Oerlikon Textile Gmbh & Co. Kg
Priority to CN2008800039432A priority Critical patent/CN101600826B/zh
Priority to BRPI0807088-1A priority patent/BRPI0807088A2/pt
Publication of WO2008095631A1 publication Critical patent/WO2008095631A1/fr

Links

Classifications

    • 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
    • D01H4/02—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

Definitions

  • the invention relates to an air spinning device for producing a thread by means of a circulating air flow according to the preamble of claim 1.
  • Air-spun devices for producing textile threads are known and relatively extensively described in numerous patents.
  • an air spinning device which consists essentially of an input side arranged nozzle block and a rotatably mounted, hollow spinning spindle.
  • the nozzle block has, in addition to air injection nozzles for generating a circumferential air flow on a sliver guide, which acts as a swirl stop for the supplied sliver.
  • the circulating air flow initiated by the air injection nozzles leads to a suction flow in the area of the fiber inlet opening of the nozzle block, which favors the introduction of the fiber sliver distorted in an upstream drafting arrangement into the air spinning device.
  • the fiber sliver introduced into the air spinning device passes through the nozzle block to the inlet opening of a hollow spinning spindle which is rotated during the spinning process and is acted upon by a drive belt.
  • the free fiber ends are wound around the cone-shaped spindle head of the spinning spindle by means of a circulating air flow and wrap during retraction of the thread in the spindle spirally around the so-called core fibers.
  • a comparable device for producing a thread by means of a circulating air flow is also known from DE 199 26 492 Al.
  • this known air spinning device has no rotatably mounted spinning spindle, but a stationary spinning cone.
  • the fiber sliver to be spun is introduced into the air-spinning device via a sliver guide and a nozzle block and enters an inlet opening of the stationary, hollow spinning cone 1 .
  • the sliver in the region of the inlet opening of the spinning cone 1 is then exposed to a circulating air flow, which is initiated by air injection openings arranged in the nozzle block.
  • the circulating air stream then lays the free fiber ends of the sliver, as known, around the head of the spinning cone and assists in the introduction of the sliver into the air spinning device.
  • the free fiber ends loop in this device in a spiral shape as so-called Umwindemaschinen to the core fibers and thereby form a thread.
  • JP 3-104933 A further discloses an air spinning device whose nozzle block with air injection nozzles for generating a rotational flow and a Injection opening is equipped for pneumatic processing of the sliver.
  • an injection opening arranged in sliver running direction in front of the air injection nozzles for the rotational flow orthogonal to the sliver allows selective blowing of the sliver during the spinning operation, which is intended to be loosened up and made more voluminous.
  • JP 7-173728 A describes an air-spinning device in which a core thread is inserted into an air-spinning device and wrapped there with binding fibers.
  • the air-spinning device has a nozzle block with the usual
  • Air injection nozzles for generating a circulating air flow and two separate inlet channels for the sliver or for the core thread on.
  • an additional injection opening is provided, through which the threading of the core thread should be facilitated when piecing the air spinning device.
  • JP 7-197329 A an air spinning device is described, the hollow spinning cone is mounted axially displaceable.
  • This known air spinning device has a first nozzle block with air injection nozzles for generating a required for producing a thread rotational flow and has a second nozzle block with injection nozzles, which are required for piecing the air spinning device and generate an additional suction air flow during the piecing process.
  • the spinning cone is first pneumatically from an operating position into a front Anspinn ein when piecing a sliver pushed and simultaneously generated via rear injector holes within the spinning cone 1, a negative pressure. Subsequently, a suction flow is initiated by the injection nozzles arranged in the second nozzle block, which draws in a fiber sliver presented at the sliver inlet opening of the air spinning device and transports it to the mouth of the pressurized spinning cone 1 .
  • DE 10 2005 045 703 A1 describes an air jet unit with a spinning cone arranged in a spinning housing as well as two separate groups of blowing air nozzles which can be acted upon with compressed air independently of one another.
  • blowing air nozzles of the first group which are arranged parallel to the central longitudinal axis of the air jet unit, while the strength of the effective during the spinning process at the sliver inlet opening and within the air spinning unit suction air flow can be adjusted.
  • the strength of the circulating in the region of the head of the spinning cone 'air flow can be adjusted.
  • the invention has for its object to develop an air spinning device which is designed so that the different, effective during the spinning process within the air spinning device air flows are better controlled and in the spinning cone 1 a sufficient rotational flow can be ensured can.
  • the embodiment according to the invention of an air spinning device with blown air nozzles of a first group, which are offset with respect to the central longitudinal axis of the air spinning device at a distance, has the advantage that the introduced blowing air in addition to an axial Blasluftkomponente also has a tangential Blasluftkomponente.
  • the ratio between the rotational flow and the Saug Kunststoffströmung can be changed not only in a relatively simple manner, but by the arrangement of the Blas Kunststoffdüsen the first group, in particular by the tangential component of the incoming blast air, also finds an effective support the effective spinning flow in the area of the spinning cone.
  • the ratio between the rotational flow and the Saug Kunststoffströmung can be changed not only in a relatively simple manner, but by the arrangement of the Blas Kunststoffdüsen the first group, in particular by the tangential component of the incoming blast air, also finds an effective support the effective spinning flow in the area of the spinning cone.
  • the ratio between the rotational flow and the Saug Kunststoffströmung can be changed not only in a relatively simple manner, but by the arrangement of the Blas Kunststoffdüsen the first group, in particular by the tangential component of the incoming blast air, also finds an effective support the effective spinning flow in the area of the spinning cone.
  • Air spool serve, each to the central longitudinal axis of the
  • Air-spotting device are arranged inclined, wherein the angle between 30 ° and 80 °, preferably about 45 °.
  • the generally spaced-apart Blas Kunststoffdüsen the first group and the Blas Kunststoffdüsen the second group are incorporated in an integrally formed nozzle block, which preferably at least partially surrounds the spinning cone (Anspr.4).
  • the arrangement of the blown air nozzles of the first group and the blown air nozzles of the second group in an integrally formed nozzle block has, for example, the advantage that can be unmistakably combined in a simple way proven combinations of these blown air nozzles.
  • the blown air nozzles of the first group and the blown air nozzles of the second group within the air spinning device are usually positioned at a different distance from the sliver inlet opening.
  • the blowing air nozzles of the first group and the blowing air nozzles of the second group within the air spinning device such that the blowing air nozzles of the first group and the blowing air nozzles of the second group are at the same axial distance from the sliver inlet opening the air spinning device have.
  • the blown air nozzles of the first group and the blown air nozzles of the second group are incorporated into the inner wall of a nozzle body such that there is alternately a blown air nozzle of the first group for generating a suction flow and a blown air nozzle of the second group for generating a rotational flow.
  • the respective strength or the effect of the air flows introduced through the blowing air nozzles can be influenced in various ways.
  • An adjustment of the strength of the air flows, for example, on the number of air nozzles of the two
  • the effect of the air currents can also be influenced by their axial positioning with respect to the sliver inlet opening or the spinning cone.
  • blowing air nozzles of the second group are arranged in the nozzle block so as to generate an optimal rotational flow, so that the exiting air streams open tangentially into an annular space surrounding the spinning cone.
  • the blown air nozzles of the second group are arranged orthogonal and symmetrical to the central axis of the air spinning device in a plane.
  • the blowing air nozzles of the first and second group can be arranged within the air spinning device at an equal axial distance from the sliver inlet opening.
  • switchable valve devices are provided for adjusting the strength of the air flows emerging from the blowing air nozzles (Anspr.10). Such valve devices which can be activated, for example via a workstation computer, also make it possible to adapt or correct the flow conditions prevailing in the region of the air-spinning device at any time if required.
  • FIG. 2 schematically, in longitudinal section, an air-spinning device according to the invention, with a first group of blown air nozzles and a second group of blown air nozzles in the region of a one-piece nozzle block,
  • FIG. 3 shows the nozzle block with the blowing air nozzles of the second group, according to section III-III of Figure 2,
  • FIG. 3 shows the nozzle block with the blowing air nozzles of the first group, according to section IV-IV of Fig.2.
  • FIG. 1 shows schematically in front view a so-called air-spinning machine 1.
  • Such textile machines have a multiplicity of working or spinning stations 2 arranged in series next to each other, which are positioned between end, so-called machines or end racks 13, 14, are positioned.
  • each of the work stations 2 is equipped with a supply of original material, for example sliver 40 deposited in a sliver can 3.
  • Each of the jobs 2 has a drafting unit 4, an air-spinning device 5, a thread withdrawal device 6, a yarn cleaner 7 and a Fadenchangier sensible 8.
  • the Fadenchangier noticed 8 ensures that the manufactured in the air-spinning device 5 from the sliver 40 thread 20 in intersecting Layers is wound on a bobbin 9.
  • This so-called cross-wound bobbin 9 is, as usual, held in a (not shown) creel and is rotated by a (also not shown) coil drive.
  • the jobs 2 of the textile machine 1 are preferably supplied by an automatically operating control unit 10, which, guided on rails 11, 12, along the work stations 2 is movable.
  • FIG. 2 shows a side view and on a larger scale of an embodiment of an air-spinning device 5 according to the invention with an upstream drafting 4 and one of the air-spinning device 5 in the direction of sliver R thread take-off device 6.
  • the air-spinning device 5 is shown in section.
  • the air-spinning device 5 essentially consists of a two-part spinning housing 15, an expansion housing 16, a nozzle block 17, a sliver guiding and twist stop device 18 and a hollow spinning cone 19.
  • the expansion housing 16 has, for example, an annular receptacle, incorporated in the circumferential surface of annular grooves are. These annular grooves form in conjunction with corresponding annular grooves in the region of the outer diameter of the nozzle block 17 annular spaces 31, 32 which are connected via bores 33, 34 to compressed air lines 35, 36.
  • switchable valve devices 26, 27 are switched on in an advantageous embodiment.
  • the expansion housing 16 also forms, in connection with the spinning housing 15, an expansion space 28, which is connected via an air outlet opening 29 either to the atmosphere or to an exhaust.
  • nozzle block 17 go from an annular space 31 in the direction of the spinning cone '19 facing, inclined and with respect to the central longitudinal axis 24 of the air spinning device 5 at a distance b arranged angeordente Blas Kunststoffdüsen 25 of a first group.
  • the Blas Kunststoffdüsen 25 are arranged within a nozzle block 17, that the exiting Blas Kunststoffstrom initiate during the spinning operation in the air spinning device 5 and the sliver inlet opening 22, on the one hand, a suction air flow and on the other hand, a tangential Blas Kunststoffkomponente, in the direction of the head of the spinning cone 1 19 acts.
  • FIGS. 2 and 4 which each show a preferred exemplary embodiment, preferably at least two blown air nozzles 25 of the first group are provided, which are also arranged at an angle ⁇ inclined with respect to the central longitudinal axis 24 of the air spinning device 5 and with respect to the central longitudinal axis 24 in FIG a distance a are arranged offset.
  • the inclination angle is for example about 45 °
  • a Saugluftströmung is generated within the air spinning device 5 primarily, which provides for the transport of the sliver 40 and which is effective up to the area of the sliver inlet opening 22 of the air spinning device 5 ,
  • the suction air flow introduced via the blowing air nozzles 25 of the first group also has a tangential flow component which assists the main rotational flow introduced through the blowing air nozzles 30 of the second group.
  • the blowing air nozzles 30 of the second group are arranged at a distance a behind the blown air nozzles 25 of the first group.
  • the blower nozzles 30 of the second group are preferably arranged in a plane orthogonal to the central longitudinal axis 24 of the air spinning device plane so that the exiting air flow 37 opens tangentially into an annular space surrounding the head 23 of the spinning cone '19, and causes a rotating air flow 38 in this annulus.
  • Nozzle block 17 which both the Blas Kunststoffdüsen 25 of the first
  • the Blas Kunststoffdüsen 30 of the second group may, for example, a two-part trained
  • the nozzle block parts each have either the blown air nozzles 25 of the first group or the
  • blowing air nozzles are provided per group, but the number of blowing air nozzles within each of the two groups can also be chosen differently.
  • blast air nozzles 30 of the second group instead of four blast air nozzles 30 of the second group, as indicated in Fig. 3, also one, three, six or the like. Blas Kunststoffdüse (s) 30 are provided.
  • the blown air nozzles 30 of the second group are generally arranged at right angles with respect to the central longitudinal axis 24 of the air spinning device 5.
  • Angle not equal to 90 ° may be arranged.
  • the inclination of the blowing air nozzles 25 of the first group should be between 30 ° and 80 °.
  • the stockpiled in a spinning can 3 sliver 40 passes through on its way to the cheese 9, first the drafting system 4, where it is relatively distorted. 2), the drawn fiber sliver 40 is transferred into the area of the sliver inlet opening 22 of the air spinning device 5 and under the influence of the suction air flow which is present there via the blown air nozzles 25 of the first group and into the air spinning device 5 sucked.
  • the sliver 40 passes through the sliver guide and swirl stopper 18 and the nozzle block 17 to the inlet opening of the hollow spinning cone 1 19 and is drawn by the formed within the spinning cone 1 19 thread 20 into the spinning cone 19.
  • the heavily hidden sliver 40 is exposed in the region of the head 23 of the spinning cone 1 19 both the influence of the rotary flow 38, which is initiated by the Blas Kunststoffdüsen 30 of the second group, and in addition to the influence of the air flow from the Blas Kunststoffdüsen 25 of the first group, which, as explained above, has both an axial and a tangential component. That is, after exiting the sliver guide and swirl stop means 18, the rear free ends of the edge fibers of the sliver 40 are exposed to the action of the axial component of the air flow exiting the blown air nozzles 25 of the nozzle block 17 to be lifted from the sliver 40.
  • the front ends of the fibers are not lifted, since they are already captured by Umwindemaschinen and fed into the hollow spinning cone 19.
  • the fiber ends lifted off the sliver 40 are initiated by the air flow 37 emerging from the second group blown air nozzles 30, which, as shown in Fig. 3, initiates a rotating air flow 38 and the tangential component of the air flow exiting the blown air nozzles 25 of the first group. wrapped around the conical head 23 of the spinning cone 1 19.
  • the resulting thread 20 is pulled over the thread withdrawal device 6 from the air-spinning device 5 and then wound into a cross-wound bobbin 9.

Landscapes

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

Abstract

L'invention concerne un dispositif de filage à air (5) destiné à fabriquer un fil (20) au moyen d'un flux d'air circulant de façon périphérique, comportant un cône de filage creux (19) disposé dans un boîtier de filage (15), et deux groupes séparés de buses de soufflage d'air (25, 30) pouvant recevoir de l'air sous pression indépendamment l'une de l'autre. La disposition d'un premier groupe de buses de soufflage d'air (25) permet de régler la force d'un flux d'air d'aspiration agissant au cours du processus de filage sur une ouverture d'entrée de bande de fibres (22), et la disposition d'un deuxième groupe de buses de soufflage (30) permet de définir la force d'un flux d'air circulant de façon périphérique au niveau du cône de filage (19). Selon l'invention, les buses de soufflage d'air du premier groupe (25) sont disposées de façon décalée à un espace (b) par rapport à l'axe longitudinal central (24) du dispositif de filage à air (5), de telle manière qu'au cours du processus de filage, un flux d'air peut être introduit dans le dispositif de filage à air (5) au moyen des buses de soufflage d'air (25), ledit flux d'air présentant une composante de soufflage d'air tangentielle pour le soutien du flux d'air circulant de façon périphérique au niveau du cône de filage (19).
PCT/EP2008/000701 2007-02-10 2008-01-30 Dispositif de filage à air WO2008095631A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2008800039432A CN101600826B (zh) 2007-02-10 2008-01-30 气流纺纱装置
BRPI0807088-1A BRPI0807088A2 (pt) 2007-02-10 2008-01-30 Dispositivo de fiação a jato

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710006674 DE102007006674A1 (de) 2007-02-10 2007-02-10 Luftspinnvorrichtung
DE102007006674.2 2007-02-10

Publications (1)

Publication Number Publication Date
WO2008095631A1 true WO2008095631A1 (fr) 2008-08-14

Family

ID=39415422

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/000701 WO2008095631A1 (fr) 2007-02-10 2008-01-30 Dispositif de filage à air

Country Status (4)

Country Link
CN (1) CN101600826B (fr)
BR (1) BRPI0807088A2 (fr)
DE (1) DE102007006674A1 (fr)
WO (1) WO2008095631A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014522919A (ja) * 2011-07-01 2014-09-08 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 粗糸を製造する粗紡機並びにスライバに準備紡績する方法

Families Citing this family (12)

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Publication number Priority date Publication date Assignee Title
JP2013067882A (ja) * 2011-09-21 2013-04-18 Murata Mach Ltd 糸巻取機、及び紡績糸の製造方法
JP2013067885A (ja) * 2011-09-21 2013-04-18 Murata Mach Ltd 空気紡績装置、紡績ユニット、紡績機及び空気紡績方法
DE102012101039A1 (de) * 2012-02-09 2013-08-14 Maschinenfabrik Rieter Ag Luftspinnmaschine mit separaten Spinn- und Anspinndüsen
DE102012108613A1 (de) * 2012-09-14 2014-03-20 Maschinenfabrik Rieter Ag Spinnstelle einer Vorspinnmaschine
DE102013101988A1 (de) * 2013-02-28 2014-08-28 Maschinenfabrik Rieter Ag Spinnstelle zur Herstellung eines Garns
CH709466A1 (de) * 2014-04-03 2015-10-15 Rieter Ag Maschf Spinnstelle einer Luftspinnmaschine sowie Verfahren zum Betrieb einer Luftspinnmaschine.
CH709465A1 (de) * 2014-04-03 2015-10-15 Rieter Ag Maschf Luftspinnmaschine sowie Verfahren zum Betrieb einer Luftspinnmaschine.
CH709756A1 (de) * 2014-06-13 2015-12-15 Rieter Ag Maschf Spinndüse für eine Luftspinnmaschine sowie Luftspinnmaschine mit einer entsprechenden Spinndüse.
CH712409A1 (de) 2016-04-29 2017-10-31 Rieter Ag Maschf Luftspinnmaschine sowie Verfahren zur Herstellung eines Garns.
IT201600070676A1 (it) * 2016-07-07 2018-01-07 Savio Macch Tessili Spa Dispositivo di filatura di tipo air-jet
DE102020108257A1 (de) * 2020-03-25 2021-09-30 Saurer Spinning Solutions Gmbh & Co. Kg Vorrichtung zur Faservereinzelung und Spinneinrichtung umfassend eine solche Vorrichtung
CN117552143B (zh) * 2024-01-12 2024-04-02 江苏欣战江纤维科技股份有限公司 一种空气变形丝机

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EP0418693A1 (fr) * 1989-09-21 1991-03-27 Maschinenfabrik Rieter Ag Tuyère d'un métier à filer à jet d'air
EP1072702A2 (fr) * 1999-07-28 2001-01-31 Murata Kikai Kabushiki Kaisha Dispositif de filage et procédé à filer
EP1329542A2 (fr) * 2002-01-17 2003-07-23 W. SCHLAFHORST AG & CO. Dispositif pour la production d'un fil utilisant un flux d'air en vortex
DE102004052206A1 (de) * 2004-10-19 2006-04-20 Wilhelm Stahlecker Gmbh Luftdüsenspinnvorrichtung
DE102005045703A1 (de) * 2005-09-19 2007-03-22 Wilhelm Stahlecker Gmbh Luftdüsenaggregat für eine Luftdüsenspinnvorrichtung

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JPH03104933A (ja) 1989-09-19 1991-05-01 Murata Mach Ltd 結束紡績糸の製造法
US5159806A (en) 1989-11-14 1992-11-03 Murata Kikai Kabushiki Kaisha Apparatus for producing spun yarns
JPH07173728A (ja) 1993-12-20 1995-07-11 Murata Mach Ltd 空気紡績装置
JPH07197329A (ja) 1993-12-28 1995-08-01 Murata Mach Ltd 空気紡績ノズル
DE19926492A1 (de) 1998-10-02 2000-04-06 Schlafhorst & Co W Spinnvorrichtung
EP1207225B2 (fr) * 2000-11-16 2011-08-31 Murata Kikai Kabushiki Kaisha Métier à filer
DE10254271A1 (de) * 2002-11-21 2004-06-03 Saurer Gmbh & Co. Kg Offenend-Spinnvorrichtung
DE10333411A1 (de) * 2003-07-15 2005-02-03 Wilhelm Stahlecker Gmbh Vorrichtung zum Herstellen eines gesponnenen Fadens aus einem Stapelfaserverband
DE102005035049A1 (de) * 2005-07-27 2007-02-01 Saurer Gmbh & Co. Kg Spinnvorrichtung zur Herstellung eines gesponnenen Fadens mittels eines umlaufenden Luftstroms

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Publication number Priority date Publication date Assignee Title
EP0418693A1 (fr) * 1989-09-21 1991-03-27 Maschinenfabrik Rieter Ag Tuyère d'un métier à filer à jet d'air
EP1072702A2 (fr) * 1999-07-28 2001-01-31 Murata Kikai Kabushiki Kaisha Dispositif de filage et procédé à filer
EP1329542A2 (fr) * 2002-01-17 2003-07-23 W. SCHLAFHORST AG & CO. Dispositif pour la production d'un fil utilisant un flux d'air en vortex
DE102004052206A1 (de) * 2004-10-19 2006-04-20 Wilhelm Stahlecker Gmbh Luftdüsenspinnvorrichtung
DE102005045703A1 (de) * 2005-09-19 2007-03-22 Wilhelm Stahlecker Gmbh Luftdüsenaggregat für eine Luftdüsenspinnvorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014522919A (ja) * 2011-07-01 2014-09-08 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 粗糸を製造する粗紡機並びにスライバに準備紡績する方法

Also Published As

Publication number Publication date
BRPI0807088A2 (pt) 2014-04-29
CN101600826A (zh) 2009-12-09
CN101600826B (zh) 2011-08-17
DE102007006674A1 (de) 2008-08-14

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