EP1644561A1 - Dispositif de production d'un fil forme a partir d'un ensemble de fibres coupees - Google Patents

Dispositif de production d'un fil forme a partir d'un ensemble de fibres coupees

Info

Publication number
EP1644561A1
EP1644561A1 EP04740286A EP04740286A EP1644561A1 EP 1644561 A1 EP1644561 A1 EP 1644561A1 EP 04740286 A EP04740286 A EP 04740286A EP 04740286 A EP04740286 A EP 04740286A EP 1644561 A1 EP1644561 A1 EP 1644561A1
Authority
EP
European Patent Office
Prior art keywords
channel
spindle
component
inlet opening
thread take
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.)
Granted
Application number
EP04740286A
Other languages
German (de)
English (en)
Other versions
EP1644561B1 (fr
Inventor
Gernot SCHÄFFLER
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 EP1644561A1 publication Critical patent/EP1644561A1/fr
Application granted granted Critical
Publication of EP1644561B1 publication Critical patent/EP1644561B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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 a device for producing a spun thread from a staple fiber association, with a feed channel for feeding the staple fiber association, with a thread take-off channel having an inlet opening, which is arranged in a stationary spindle-like component, with a fluid device for generating a vortex flow around the inlet opening of the thread take-off channel , with an exhaust air duct which surrounds the spindle-like component in a ring and with an injection duct which is connected to the thread take-off duct with an opening and is directed towards its inlet opening and can be connected to a compressed air source.
  • a device of this type is known from EP 0 787 843 A1.
  • a staple fiber structure is drawn into a fiber ribbon in the drafting system, which is then given the spinning rotation in an air nozzle unit.
  • the fiber ribbon is first passed through a feed channel of the air nozzle unit into a swirl chamber, which is assigned a fluid device for generating a swirl flow around an inlet opening of a thread take-off channel.
  • the front ends of the fibers held in the fiber ribbon are guided into the thread take-off channel, while the rear free fiber ends are spread apart, caught by the vortex flow, and are rotated around the front ends that are already in the inlet opening of the thread take-off channel, that is to say incorporated, which results in a thread with largely real rotation is generated.
  • Such a device allows particularly high speeds of more than 300 m per minute.
  • an injection channel is provided in the spindle-like component, which is connected with an opening to the thread take-off channel and is directed against its inlet opening. If this injection channel is connected to a compressed air source, a suction flow directed against the drafting system is created in the thread draw-off channel, with the aid of which the thread already spun can be transported back to the drafting system.
  • the injection channel shown and described only in FIG. 10 of the cited document is tapered and is directed obliquely through the spindle-like component against the thread take-off channel. It is not disclosed in the known publication how the injection channel is produced in practical devices.
  • the object of the invention is to create favorable conditions for a device of the type mentioned at the outset that such an injection channel can be produced in a simple and inexpensive manner.
  • the object is achieved in that a separate spindle tip containing the injection channel and containing the inlet opening of the thread take-off channel is arranged on the spindle-like component.
  • the spindle tip which is arranged separately on the now multi-part spindle-like component, can be designed in such a way that the injection channel can be produced in a simple manner and connected to a compressed air source.
  • the spindle tip can be attached to the spindle-like component as desired and glued on, for example, it is provided in a further embodiment of the invention that the spindle tip is inserted into the spindle-like component in an easily replaceable manner and is fixed there, for example by means of an O-ring.
  • the injection channel can be attached to the spindle tip in such a way that it begins at its end facing away from the mouth on a boundary surface of the spindle tip arranged essentially perpendicular to the injection channel. As a result, even if the injection channel runs at an angle to the thread take-off channel, a thin hole can be drilled perpendicular to a processing surface.
  • the invention can be further developed in that the injection channel at its end facing away from the mouth outside the spindle tip in the spindle-like component with a Connection channel is continued, which can be connected to the compressed air source.
  • a Connection channel is continued, which can be connected to the compressed air source.
  • the invention further relates to a spindle tip for the device described, which is characterized in that it contains the initial part and an inlet opening of a thread take-off channel, which is connected via an opening to an injection channel directed against the inlet opening.
  • a spindle tip for the device described, which is characterized in that it contains the initial part and an inlet opening of a thread take-off channel, which is connected via an opening to an injection channel directed against the inlet opening.
  • the spindle tip can have a cylindrical guide surface which can be inserted into a correspondingly shaped hollow cylindrical recess in a spindle-like component.
  • Said cylindrical guide surface can end on an end surface.
  • a chamfer or the like is provided at the transition region between the cylindrical guide surface and the end face of the spindle tip, at which the end of the injection channel facing away from the mouth begins.
  • a spindle tip inserted separately into the stationary spindle-like component also makes sense if it does not contain an injection channel, since such a spindle tip can be regarded as a spin agent with which the character of the spun thread can be changed.
  • the tip of the spindle can be more or less brought up to the feed channel, whereby a thread with greater or lesser hairiness can be spun.
  • FIG. 1 shows an enlarged axial section through the air nozzle unit in the area of the stationary spindle-like component, Figure 2 in an even greater magnification an axial section through the spindle tip which can be inserted into the spindle-like component.
  • the device shown in FIG. 1 is used to produce a spun thread 1 from a staple fiber dressing 2.
  • the essential components include a drafting device 3 and an air nozzle unit 4.
  • the staple fiber structure 2 to be spun is fed to the drafting device 3 in the direction of delivery A and drawn off as spun thread 1 in the direction of take-off B and passed on to a winding device (not shown).
  • the drafting system 3 which is only partially shown, is preferably a three-cylinder drafting system and contains a total of three roller pairs, each of which contains a driven lower roller and an upper roller designed as a pressure roller. Only the pair of delivery rollers 5.6 is shown.
  • the staple fiber structure 2 is warped to the desired fineness in a known manner.
  • a thin fiber ribbon 7, which is stretched but still untwisted.
  • the fiber ribbon 7 is fed to the air nozzle unit 4 via a feed channel 8.
  • a so-called swirl chamber 9 follows, in which the fiber ribbon 7 is given the spinning twist, so that the spun thread 1 is produced, which is drawn off through a thread take-off channel 10.
  • a fluid device generates a vortex flow in the vortex chamber 9 by blowing compressed air through tangential air nozzles 11 opening tangentially into the vortex chamber 9.
  • the compressed air emerging from the nozzle openings is discharged through an exhaust air duct 12, which has an annular cross section around a spindle-like stationary component 13 which contains the thread take-off duct 10.
  • an edge of a fiber guide surface 14 is arranged as a twist lock, which is arranged slightly eccentrically to the thread take-off channel 10 in the area of its inlet opening 15.
  • the fibers to be spun are held on the one hand in the fiber ribbon 7 and thus guided from the feed channel 8 into the thread take-off channel 10 essentially without imparting rotation.
  • the fibers in the area between the feed channel 8 and the thread take-off channel 10 are exposed to the effect of the vortex flow, through which they or at least their end regions are driven radially away from the inlet opening 15 of the thread take-off channel 10.
  • the threads 1 produced with the described method thereby show a core of fibers or fiber regions running essentially in the longitudinal direction of the thread without substantial rotation and an outer region in which the fibers or fiber regions are rotated around the core.
  • a device of this type allows particularly high spinning speeds, which can be in the order of 600 m per minute.
  • an injection channel 16 is provided as an aid, which can be connected to a compressed air source 17 and whose mouth 18 is connected to the thread take-off channel 10 and is directed against its inlet opening 15. In this way, a suction air flow directed against the drafting device 3 can be achieved in the thread take-off channel 10, which returns the end of the spun thread 1 to the delivery roller pair 5, 6.
  • a spindle tip 19 is provided according to the invention, which is arranged on the spindle-like component 13 'and an the inlet opening 15 of the thread take-off channel 10 and contains the injection channel 16.
  • FIG. 2 shown in a greatly enlarged form. One can see here the separately shown spindle tip 19 with the injection channel 16, which is directed with its mouth 18 against the inlet opening 15.
  • the spindle tip 19 is easily replaceable in the spindle-like component 13 and fixed there by means of an O-ring 20.
  • the injection channel 16 begins with its end 21 facing away from the mouth 18 on a boundary surface 22 of the spindle tip 19 which is arranged essentially perpendicular to the injection channel 16.
  • the injection channel 16 can easily be made in the spindle-like component 13 through a bore, even if it is oblique to the thread take-off channel 10 runs.
  • the injection channel 16 is continued outside the spindle tip in the spindle-like component 13 with a connecting channel 23, which in turn can be connected to the compressed air source 17 if required.
  • the connection channel 23 can therefore run parallel to the thread take-off channel 10, which is much easier to manufacture than was the case in the prior art.
  • the connection channel 23 can open at an end face 24 of a recess 25 for the spindle tip 19.
  • the spindle tip 19 contains the start part 26 and the inlet opening 15 of the thread take-off channel 10.
  • the injection channel 16 opens into this start part 26 with its mouth 18.
  • the start part 26 thus belongs to the thread take-off channel 10 and is coaxial with it ,
  • the spindle tip 19 At its end region 27 facing away from the inlet opening 15, the spindle tip 19 has a cylindrical guide surface 28 on the outside, which can be inserted into a correspondingly shaped hollow cylindrical recess 25 of the spindle-like component 13.
  • the cylindrical guide surface 28 ends at an end surface 29.
  • a chamfer 31 or the like is provided, at which the end 21 of the injection channel 16 facing away from the mouth 18 begins.

Landscapes

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

Abstract

L'invention concerne un dispositif de production d'un fil formé à partir d'un ensemble de fibres coupées. Ce dispositif comprend un canal d'amenée permettant l'alimentation de l'ensemble de fibres coupées, et un canal de dévidage du fil présentant un orifice d'entrée et placé dans un composant stationnaire de type broche. Ce dispositif comprend également un équipement à fluide permettant de produire un tourbillon autour de l'orifice d'entrée du canal de dévidage du fil, et un canal d'évacuation d'air qui entoure de façon annulaire le composant de type broche. Ce dispositif comprend enfin un canal d'injection pouvant être raccordé à une source d'air comprimé, relié au canal de dévidage du fil par un orifice et dirigé vers l'orifice d'entrée du canal de dévidage du fil. Selon l'invention, le composant de type broche abrite une pointe de broche distincte contenant l'orifice d'entrée du canal de dévidage du fil, cette pointe de broche contenant également le canal d'injection.
EP04740286A 2003-07-15 2004-06-25 Dispositif de production d'un fil forme a partir d'un ensemble de fibres coupees Expired - Lifetime EP1644561B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003133411 DE10333411A1 (de) 2003-07-15 2003-07-15 Vorrichtung zum Herstellen eines gesponnenen Fadens aus einem Stapelfaserverband
PCT/EP2004/006874 WO2005007948A1 (fr) 2003-07-15 2004-06-25 Dispositif de production d'un fil forme a partir d'un ensemble de fibres coupees

Publications (2)

Publication Number Publication Date
EP1644561A1 true EP1644561A1 (fr) 2006-04-12
EP1644561B1 EP1644561B1 (fr) 2010-04-07

Family

ID=33560249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04740286A Expired - Lifetime EP1644561B1 (fr) 2003-07-15 2004-06-25 Dispositif de production d'un fil forme a partir d'un ensemble de fibres coupees

Country Status (5)

Country Link
EP (1) EP1644561B1 (fr)
JP (1) JP2009513836A (fr)
CN (1) CN100519853C (fr)
DE (2) DE10333411A1 (fr)
WO (1) WO2005007948A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006018249A1 (de) * 2006-04-13 2007-10-18 Wilhelm Stahlecker Gmbh Spindelförmiges Bauteil für eine Luftdüsenspinnvorrichtung mit einem Injektionskanal
DE102007006674A1 (de) * 2007-02-10 2008-08-14 Oerlikon Textile Gmbh & Co. Kg Luftspinnvorrichtung
DE102007009074A1 (de) 2007-02-24 2008-08-28 Oerlikon Textile Gmbh & Co. Kg Spinnvorrichtung
US8464510B2 (en) * 2009-07-16 2013-06-18 Maschinenfabrik Rieter Ag Air-jet spinning apparatus
DE102009034206A1 (de) * 2009-07-17 2011-01-27 Maschinenfabrik Rieter Ag Bauteil für eine Luftdüsenspinnvorrichtung
DE102011053810A1 (de) * 2011-09-21 2013-05-16 Maschinenfabrik Rieter Ag Garnbildungselement für eine Spinnstelle einer Luftspinnmaschine sowie Verfahren zur Vorbereitung eines Anspinnvorgangs an einer Luftspinnmaschine
DE102011053837A1 (de) * 2011-09-21 2013-03-21 Maschinenfabrik Rieter Ag Spinnspitze für eine Hohlspindel einer Luftspinnmaschine
DE102012100674A1 (de) 2012-01-27 2013-08-01 Maschinenfabrik Rieter Ag Luftspinnmaschine mit einem Reinigungsorgan sowie Verfahren zum Reinigen der Wirbelkammer einer Luftspinnmaschine
DE102012110315A1 (de) * 2012-10-29 2014-04-30 Maschinenfabrik Rieter Ag Garnbildungselement für eine Luftspinnmaschine mit einem Einsatz sowie damit ausgerüstete Spinndüse
CN103774305B (zh) * 2014-01-07 2016-01-20 太仓市世博纺织配件有限公司 一种加弹机上止捻器的快速更换机构
CN103774303B (zh) * 2014-01-07 2016-01-20 太仓市世博纺织配件有限公司 加弹机上止捻器的快速更换方法
DE102014112360A1 (de) * 2014-08-28 2016-03-03 Maschinenfabrik Rieter Ag Garnbildungselement für eine Spinndüse einer Luftspinnmaschine, Luftspinnmaschine sowie Verfahren zum Betrieb einer solchen
JP6394954B2 (ja) * 2014-09-30 2018-09-26 村田機械株式会社 中空ガイド軸体、空気紡績装置、及び繊維機械
CN105568455B (zh) * 2016-03-09 2018-03-27 苏州华策纺织科技有限公司 一种断线自动接线器
DE102016116693A1 (de) * 2016-09-07 2018-03-08 Maschinenfabrik Rieter Ag Garnbildungselement und Spinndüse für eine Luftspinnmaschine
DE102016118858A1 (de) * 2016-10-05 2018-04-05 Maschinenfabrik Rieter Ag Faserführungselement für eine Spinndüse einer Luftspinnmaschine sowie Verfahren zum Betrieb einer Luftspinnmaschine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100296977B1 (ko) * 1996-01-30 2001-11-22 무라타 기카이 가부시키가이샤 방적기의피이싱방법
JP2001295143A (ja) * 2000-04-10 2001-10-26 Murata Mach Ltd 紡績装置
CN1200155C (zh) * 2002-07-10 2005-05-04 东华大学 喷气涡流纺复式加捻器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005007948A1 *

Also Published As

Publication number Publication date
EP1644561B1 (fr) 2010-04-07
CN100519853C (zh) 2009-07-29
JP2009513836A (ja) 2009-04-02
CN1823186A (zh) 2006-08-23
DE10333411A1 (de) 2005-02-03
WO2005007948A1 (fr) 2005-01-27
DE502004011001D1 (de) 2010-05-20

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