EP1786961A1 - Dispositif de filature a jet d'air - Google Patents

Dispositif de filature a jet d'air

Info

Publication number
EP1786961A1
EP1786961A1 EP05783913A EP05783913A EP1786961A1 EP 1786961 A1 EP1786961 A1 EP 1786961A1 EP 05783913 A EP05783913 A EP 05783913A EP 05783913 A EP05783913 A EP 05783913A EP 1786961 A1 EP1786961 A1 EP 1786961A1
Authority
EP
European Patent Office
Prior art keywords
channel
spindle
shaped component
opening
faserzuführkanal
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.)
Pending
Application number
EP05783913A
Other languages
German (de)
English (en)
Inventor
Gerd Stahlecker
Gernot SCHÄFFLER
Peter Schweier
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP1786961A1 publication Critical patent/EP1786961A1/fr
Pending legal-status Critical Current

Links

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
    • D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
    • D01H15/002—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing for false-twisting spinning machines

Definitions

  • the invention relates to an air jet spinning device having a Faserzu Fightingkanal opening into a swirl chamber, with an emerging from the swirl chamber, having an inlet opening yarn withdrawal channel, which is arranged in a spindle-shaped component, with an adjusting device for moving away the spindle-shaped component from the fiber feed channel and with an outlet opening against directed the spindle-shaped component, connectable to a compressed air source cleaning channel.
  • An air jet spinning device of this type is known from DE 195 01 545 C2 prior art.
  • a staple fiber bundle is warped in a preceding drafting to a fiber ribbon, which is then given the spin rotation in the air jet spinning device.
  • the fiber ribbon is first passed through a Faserzu Swisskanal the air jet spinning device in a vortex chamber, which is associated with a fluid means for generating a vortex flow around an inlet opening of a yarn withdrawal channel around.
  • the invention is based on the object to avoid this disadvantage and to provide an opportunity for an air jet spinning device of the type mentioned, as the most critical area between the Faserzu Siliconkanal and the inlet opening of the yarn withdrawal channel can be effectively cleaned at an interruption of the spinning process.
  • the object is erfindungsgerphaseß solved in that the cleaning channel opens into a surrounding the spindle-shaped annular member, from which a first outlet opening - when moved away from the Faserzu Foodkanal spindle-shaped member - formed as the spindle-shaped member surrounding ring opening and directed against the Faserzu 1500kanal and in which a second Outlet opening opens via an intermediate channel in the thread withdrawal channel and is directed against the inlet opening.
  • the air jet emerging from the annular opening blows over the outer contour of the spindle-shaped component as far as the fiber feed channel and cleans this area from the outside.
  • another compressed air jet is blown through the inlet opening of the yarn withdrawal channel against the Faserzu Glasskanal via the second outlet opening of the cleaning channel from the inside, ie via the yarn withdrawal channel. Since the spindle-shaped component of an air jet spinning device is usually surrounded by an exhaust air duct, which is under vacuum even in the case of maintenance, the fiber components blown away by the blowing air flow are sucked off immediately.
  • the first outlet opening is closed at not moved away from the Faserzu Swisskanal spindle-shaped component.
  • the spindle-shaped component is again in its operating position, even then no air flow can be blown over its outer contour when the compressed air is still switched on.
  • the compressed air supplied via the cleaning channel can nevertheless be introduced into the fiber extraction channel via the intermediate channel, as a result of which this compressed air can have a further function in addition to the preceding cleaning function, namely to suck in a thread end to be conveyed back to the drafting device by means of injection and feed it to the fiber feed channel.
  • the connection to the compressed air source is therefore expediently only switched off from the cleaning channel when not only the cleaning process completed, but also the thread end is returned to the drafting for piecing.
  • the first outlet opening of the cleaning channel designed as an annular opening can be closed in a very simple manner when the spindle-shaped component is in an operating position.
  • the spindle-shaped member advantageously has a smaller outer diameter portion which releases the annular hole at the spindle-shaped member moved away from the fiber feed channel, and a larger outer diameter portion which closes the cleaning hole with a seal gap when the spindle-shaped member is not moved away from the fiber feed channel. In this way, a compressed air valve can be saved
  • FIG. 1 shows a greatly enlarged view of an air jet spinning device according to the invention in axial section during operation
  • FIG. 2 shows the same air jet spinning device in the same view in the inoperative state.
  • the air jet spinning device 1 shown in FIG. 1 is used to produce a spun yarn 2 from a staple fiber strand 3.
  • the air jet spinning device 1 is preceded by a drafting device 4.
  • the staple fiber staple 3 is fed in drafting 4 in the direction of delay A and withdrawn as ersponnner thread 2 in the withdrawal direction B and forwarded to a winding device, not shown.
  • the drafting unit 4 which is only partially shown, is preferably a three-cylinder drafting system and thus contains a total of three roller pairs, each of which has a driven lower roller and an upper roller designed as a pressure roller. Shown is only the delay zone of the drafting 4 limiting delivery roller pair 5.6. In such a drafting unit 4, the staple fiber strand 3 is warped in a known manner to a desired fineness. Following the drafting system 4 then there is a thin fiber ribbon 7, which is stretched and still untwisted.
  • the air jet spinning device 1 is fed to the fiber ribbon 7 via a fiber feed channel 8. It follows a so-called vortex chamber 9, in which the fiber ribbon 7, the spinning rotation is granted, so that the spun yarn 2, which is withdrawn through a yarn withdrawal channel 10, is formed.
  • a fluid device generates during the spinning process in the vortex chamber 9 by blowing compressed air through tangentially into the vortex chamber 9 opening compressed air nozzles 11 a vortex flow.
  • the emerging from the nozzle openings compressed air is discharged through an exhaust duct 12, wherein this has an annular cross-section about a spindle-shaped, stationary in operation member 13 around which contains the thread withdrawal channel 10.
  • an edge of a fiber guide surface 14 is arranged as a swirl barrier, which is arranged slightly eccentrically to the yarn withdrawal channel 10 in the region of its inlet opening 15.
  • the fibers to be spun on the one hand held in ⁇ fiber ribbons 7 and as guided by the fiber feed channel 8 are substantially without rotation issuing into the yarn withdrawal channel 10, on the other hand, the fibers in the area between the fiber feed channel 8 and the yarn withdrawal channel are exposed to 10 the effect of the vortex flow , Through this, the fibers or at least their end portions are radially expelled from the inlet opening 15 of the thread withdrawal channel 10.
  • the filaments 2 produced by the described air jet spinning device 1 thereby exhibit a core of fibers or fiber strands running essentially in the yarn longitudinal direction without significant rotation and an outer region in which the fibers or fiber regions are rotated around the core.
  • An air jet spinning device 1 of this type allows very high spinning speeds, which is on the order of 300 to 600 meters per minute.
  • the compressed air emerging from the compressed air nozzles 11 in the vortex chamber 9 compressed air is fed to the air jet spinning device 1 during operation via a compressed air channel 16 in the feed direction C. From the compressed air channel 16, the compressed air first passes into a vortex chamber 9 surrounding annular channel 17, to which said compressed-air nozzles 11 are directly connected.
  • a very small distance X 1 which is for example 0.5 mm.
  • This small distance Xi is produced by the spindle-shaped component 13 containing the thread withdrawal channel 10 being displaceably arranged in the axial direction.
  • the distance x can be fixed in the operating state by a spring 18.
  • the spindle-shaped member 13 includes a piston-like member 19, whose operation will be described below.
  • the overpressure supplying the vortex chamber 9 is first turned off, see the crossed-over arrow C in Figure 2. At the same time all drives of the drafting system 4 and the unwinding rollers and the winding device are switched off. In addition, the top roller 6 of the pair of delivery rollers 5, 6 is lifted off the bottom roller 5.
  • the spindle-shaped member 13 includes a piston-like member 19, the movement of the spindle-shaped member 13 away from the fiber feeding channel 8 can be performed with very simple means.
  • a spindle-shaped member 13 surrounding annular channel 20 is provided, which is connected to a supply line 21 for compressed air.
  • This compressed air see the arrow D in Figure 2 and the crossed-through arrow in Figure 1, is supplied only when the spinning process is interrupted.
  • the then entering the annular channel 20 compressed air moves the piston-like member 19 in the view shown in Figure 2 upwards, so that the annular channel 20 widens due to the piston stroke to an enlarged annular chamber 22.
  • the fixed to the spindle-shaped member 13 attached piston-like member 19 thus limits the annular channel 20 during operation and the enlarged annular chamber 22 at an interruption of the spinning process.
  • the compressed air of the adjusting device thus formed acts against the spring 18, which presses the piston-like member 19 in a secured operating position with the compressed air, ie during the spinning process, during the spinning process. Moving the spindle-shaped component 13 from the fiber feed channel 8 thus serves the compressed air fed in via the feed line 21, while the return movement is counteracted by the spring 18.
  • the very small distance X 1 in operation is then increased by moving away the spindle-like member 13 to a distance x 2 , which makes it possible to clean the space between the fiber guide surface 14 and the inlet opening 15 of the yarn withdrawal channel 10 in a manner to be described.
  • a cleaning channel 23 is provided to which compressed air can be supplied if required in accordance with the feed direction E.
  • This cleaning channel 23 is directed with a plurality of outlet openings in a manner to be described against the spindle-shaped member 13.
  • the cleaning channel 23 first opens into an annular channel 24 surrounding the spindle-shaped component 13. More or less directly two outlet openings 25 and 26 emanate from this.
  • a first outlet opening 25 is formed as the spindle-shaped member 13 surrounding annular opening, which is closed in the operating position shown in FIG.
  • the second outlet opening 26 opens via an intermediate channel 27 in the thread withdrawal channel 10 and is directed against the inlet opening 15.
  • the outer contour of the spindle-shaped component 13 can be cleaned as far as the inlet opening 15 of the thread withdrawal channel 10.
  • About the second outlet opening 26 of the thread withdrawal channel 10 is cleaned from the inside out.
  • the first outlet opening 25 is closed at spindle-shaped component 13 which is not moved away from the fiber feed channel 8.
  • the spindle-shaped component 13 has a region 28 with a smaller outer diameter and a region 29 with a cylindrical larger outer diameter.
  • compressed air can be supplied to the air jet spinning device 1 at three different points, namely once via the compressed air duct 16, once again via the supply line 21 and a third time via the cleaning duct 23.

Landscapes

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

Abstract

L'invention concerne un dispositif de filature à jet d'air pourvu d'un canal d'alimentation en fibres (8), débouchant dans une chambre de turbulence (9), et d'un canal de dévidage du fil (10) sortant de cette chambre de turbulence (9). Le canal de dévidage du fil est formé dans un composant fuselé (13), pouvant être éloigné du canal d'alimentation en fibres (8) au moyen d'un dispositif de réglage. L'objectif de cette invention est de permettre de nettoyer la zone de l'orifice d'admission du canal de dévidage du fil (10). A cet effet, le dispositif de filature est pourvu d'un canal de nettoyage (23) dirigé vers le composant fuselé (13) et pouvant être raccordé à une source d'air comprimé (E). Ce canal de nettoyage débouche dans un canal annulaire (24) entourant le composant fuselé. Un premier orifice de sortie (25) de ce canal annulaire est conçu, de sorte cet orifice se présente sous la forme d'un orifice annulaire entourant le composant fuselé (13), lorsque ce dernier est éloigné du canal d'alimentation en fibres (8), ledit orifice étant dirigé vers le canal d'alimentation en fibres. Un second orifice de sortie (26) du canal annulaire débouche dans le canal de dévidage du fil (10) par le biais d'un canal intermédiaire (27) et est dirigé vers l'orifice d'admission (15) du canal de dévidage du fil (10). Ainsi, la zone de l'orifice d'admission (15) peut être nettoyée aussi bien de l'intérieur que de l'extérieur lors d'opérations d'entretien.
EP05783913A 2004-09-09 2005-09-07 Dispositif de filature a jet d'air Pending EP1786961A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004044345A DE102004044345A1 (de) 2004-09-09 2004-09-09 Luftdüsenspinnvorrichtung
PCT/EP2005/009577 WO2006027216A1 (fr) 2004-09-09 2005-09-07 Dispositif de filature a jet d'air

Publications (1)

Publication Number Publication Date
EP1786961A1 true EP1786961A1 (fr) 2007-05-23

Family

ID=35355407

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05783913A Pending EP1786961A1 (fr) 2004-09-09 2005-09-07 Dispositif de filature a jet d'air

Country Status (6)

Country Link
US (1) US20080190089A1 (fr)
EP (1) EP1786961A1 (fr)
JP (1) JP2008512576A (fr)
CN (1) CN101014732A (fr)
DE (1) DE102004044345A1 (fr)
WO (1) WO2006027216A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101006214B (zh) * 2004-08-20 2010-05-12 里特机械公司 用于喷气纺纱机的带有喷射导管的锭子和接头方法
DE102005045703A1 (de) * 2005-09-19 2007-03-22 Wilhelm Stahlecker Gmbh Luftdüsenaggregat für eine Luftdüsenspinnvorrichtung
DE102006018249A1 (de) * 2006-04-13 2007-10-18 Wilhelm Stahlecker Gmbh Spindelförmiges Bauteil für eine Luftdüsenspinnvorrichtung mit einem Injektionskanal
CN101280478B (zh) * 2008-05-21 2010-06-09 东华大学 喷气涡流纺纱装置
CN101294319B (zh) * 2008-05-26 2010-06-02 东华大学 低落纤的喷气涡流纺装置
DE102008050874A1 (de) 2008-09-29 2010-04-01 Wilhelm Stahlecker Gmbh Luftdüsenspinnaggregat mit spindelförmigem Bauteil
DE102009034206A1 (de) * 2009-07-17 2011-01-27 Maschinenfabrik Rieter Ag Bauteil für eine Luftdüsenspinnvorrichtung
JP2011038210A (ja) * 2009-08-11 2011-02-24 Murata Machinery Ltd 空気紡績装置及びこの空気紡績装置を備える紡績機
JP2011084854A (ja) * 2009-09-18 2011-04-28 Murata Machinery Ltd 紡績機
JP2012102432A (ja) * 2010-11-10 2012-05-31 Murata Mach Ltd 空気紡績装置、紡績ユニット及び空気紡績装置を用いた紡績方法
JP2013002023A (ja) * 2011-06-20 2013-01-07 Murata Mach Ltd 中空ガイド軸体ユニット、空気紡績装置及び紡績機
DE102011053837A1 (de) 2011-09-21 2013-03-21 Maschinenfabrik Rieter Ag Spinnspitze für eine Hohlspindel einer Luftspinnmaschine
DE102013101988A1 (de) * 2013-02-28 2014-08-28 Maschinenfabrik Rieter Ag Spinnstelle zur Herstellung eines Garns
JP2015101805A (ja) * 2013-11-25 2015-06-04 村田機械株式会社 空気紡績装置及び紡績機
CH709466A1 (de) * 2014-04-03 2015-10-15 Rieter Ag Maschf Spinnstelle einer Luftspinnmaschine sowie Verfahren zum Betrieb einer Luftspinnmaschine.
CH709615A1 (de) 2014-05-13 2015-11-13 Rieter Ag Maschf Spinnstelle einer Luftspinnmaschine sowie Betrieb einer solchen.
CH709953A1 (de) * 2014-07-30 2016-02-15 Rieter Ag Maschf Verfahren zum Betrieb einer Luftspinnmaschine.
ITUA20163006A1 (it) * 2016-04-29 2017-10-29 Savio Macch Tessili Spa Dispositivo di filatura di tipo air-jet

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2616428B2 (ja) * 1994-01-25 1997-06-04 村田機械株式会社 紡績機の糸継ぎ方法
DE60120082T9 (de) * 2000-11-16 2012-04-26 Murata Kikai K.K. Spinnvorrichtung
EP1217109A3 (fr) * 2000-12-22 2003-04-02 Maschinenfabrik Rieter Ag Dispositif de filage
DE10349651A1 (de) * 2003-10-20 2005-05-19 Wilhelm Stahlecker Gmbh Luftdüsen-Spinnvorrichtung
DE10353317B4 (de) * 2003-11-10 2013-06-27 Wilhelm Stahlecker Gmbh Verfahren und Vorrichtung zum Wiederherstellen eines zuvor unterbrochenen Spinnvorganges
DE102006018249A1 (de) * 2006-04-13 2007-10-18 Wilhelm Stahlecker Gmbh Spindelförmiges Bauteil für eine Luftdüsenspinnvorrichtung mit einem Injektionskanal

Non-Patent Citations (1)

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Title
See references of WO2006027216A1 *

Also Published As

Publication number Publication date
CN101014732A (zh) 2007-08-08
US20080190089A1 (en) 2008-08-14
JP2008512576A (ja) 2008-04-24
WO2006027216A1 (fr) 2006-03-16
DE102004044345A1 (de) 2006-03-16

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