EP1486594B1 - Tuyère de sortie de fil - Google Patents

Tuyère de sortie de fil Download PDF

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Publication number
EP1486594B1
EP1486594B1 EP20030013005 EP03013005A EP1486594B1 EP 1486594 B1 EP1486594 B1 EP 1486594B1 EP 20030013005 EP20030013005 EP 20030013005 EP 03013005 A EP03013005 A EP 03013005A EP 1486594 B1 EP1486594 B1 EP 1486594B1
Authority
EP
European Patent Office
Prior art keywords
yarn
nozzle
yarn draw
draw
spinning
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
EP20030013005
Other languages
German (de)
English (en)
Other versions
EP1486594A1 (fr
Inventor
Thomas Weide
Bert Schlömer
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
Priority to EP20030013005 priority Critical patent/EP1486594B1/fr
Publication of EP1486594A1 publication Critical patent/EP1486594A1/fr
Application granted granted Critical
Publication of EP1486594B1 publication Critical patent/EP1486594B1/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
    • D01H4/40—Removing running yarn from the yarn forming region, e.g. using tubes

Definitions

  • DE-OS 25 44 721, DE 33 44 741 A1 or EP 0 422 615 B1 describe yarn withdrawal nozzles which have notch-like depressions in the area of the yarn entry zone.
  • the yarn draw-off nozzle is made of an oxide-ceramic material and has a roughness depth of 0.2 to 0.7 ⁇ m in the region of the yarn inlet funnel.
  • notches are also arranged, which may have different notch opening angle.
  • the yarn withdrawal nozzles described in DE 33 44 741 A1 have a replaceable, drawn from sheet steel and then hardened yarn inlet funnel.
  • the thread inlet funnel has either notches or protruding beads.
  • the notches can also be positioned in two ring-like arrangements which lie one behind the other in the thread running direction.
  • a yarn draw-off nozzle which has both annular notches in the region of the mouth funnel and notches which are arranged orthogonal to these annular notches. That is, in this yarn draw nozzle overlap differently arranged notches and form for the rotating thread a variety of relatively aggressive abutment.
  • This known yarn draw has not been successful in practice and could not prevail in the market.
  • DE 37 07 526 A1, DE 42 24 632 A1 or EP 0 220 546 A1 relate, for example, to such designed yarn withdrawal nozzles.
  • Such a spiral / notch nozzle is described for example in DE 197 38 382 A1.
  • a spiral-shaped structure for retaining the genuine yarn twist is arranged in the mouth region and, in addition, notches are positioned in the entry region of the yarn draw-off channel.
  • the yarn withdrawal nozzles according to DE 197 38 382 A1 have proven to be very good in practice, which means that yarns of outstanding quality can be produced with them, in particular when spinning cotton but also polyester / cotton blends.
  • the circular beads or grooves are preferably arranged concentrically as set forth in claim 2.
  • the surface of such yarn draw-off nozzle is polished at least in the region of the mouth of the nozzle.
  • the open end rotor spinning device shown schematically in Figure 1 carries the reference number 1.
  • Such spinning devices each have a rotor housing 2, in which the spinning cup of a spinning rotor 3 rotates at high speed.
  • the spinning rotor 3 is supported with its rotor shaft 4 in the Lagerzwickeln a so-called support disk bearing 5 and is driven by a machine-long tangential belt 6, which is acted upon by a pressure roller 7.
  • the axial fixation of the rotor shaft 4 takes place, for example, by a permanent magnetic thrust bearing 18.
  • a Faderbandauflbücher is integrated into the lid member 8, which is mounted rotatably limited about a pivot axis 16. That is, the lid member 8 has an opening roller housing 17 and rear bearing brackets 19, 20 for supporting an opening roller 21 and a sliver feed cylinder 22.
  • the opening roller 21 is thereby driven by a circumferential, machine-long tangential belt 24, which acts on a whorl 23 of the opening roller 21, while the drive of the sliver feed cylinder 22 preferably via a machine-length drive shaft 25 and (not shown) worm gear.
  • the individual fibers 28 released by the opening roller 21 from a master fiber belt (not shown) are fed via the fiber guide channel 14 into the spinning rotor 3 and, as usual in open-end rotor spinning devices, first collected in the area of the rotor groove 27 of the spinning rotor 3. In a so-called binding zone of the spinning rotor 3, the individual fibers 28 are then spun into a yarn 29 which is drawn off via the yarn draw-off nozzle 13.
  • the thread take-off speed with which the new thread 29 in the direction A can be withdrawn from the open-end spinning device 1 is dependent on various factors, such as the rotor speed, the desired yarn rotation, etc., and can be adjusted via a thread take-off device 35.
  • the exemplary embodiment according to FIG. 3 shows a coaxially arranged structure 30, which consists of several concentrically arranged beads or grooves 32 of different diameters. These concentrically arranged beads or grooves 32 preferably extend from the region of the outer edge 33 of the yarn draw-off nozzle 13 to the beginning of the funnel-like inlet region of the yarn draw-off nozzle 13.
  • notches 34 Spaced apart from the coaxial structures 30 and with respect to the running direction A of the thread 29 downstream of the coaxial structures 30, a plurality of notches 34 are additionally arranged in each case.
  • the notches 34 in the present exemplary embodiments, four notches 34 are shown, in this case, for example, lie in the entry region of the yarn withdrawal channel 31 of the yarn draw-off nozzle 13.
  • the above-described coaxially arranged structures 30 of the thread take-off nozzle 13 and the formation of the notches are intended to be explicit with respect to their exact embodiment not limited to the embodiments illustrated in the figures. That is, the beads or grooves may differ from the embodiments both in number and in width or height. Likewise, the notches can be made longer or shorter, wider or narrower, and deeper or shallower, for example, depending on the yarn material to be processed.

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

Claims (8)

  1. Buse d'extraction du fil pour un métier à filer à fibres libérées, comprenant une structure disposée de façon coaxiale dans le cône d'entrée et des encoches espacées les unes des autres qui, par rapport au sens de circulation d'un fil, sont positionnées en aval de la structure coaxiale, caractérisée en ce que la structure (30) disposée de façon coaxiale est formée par des bourrelets ou des rainures circulaires (32) de diamètre différent.
  2. Buse d'extraction du fil selon la revendication 1, caractérisée en ce que les bourrelets ou rainures (32) sont disposés de façon concentrique.
  3. Buse d'extraction du fil selon la revendication 1, caractérisée en ce que les bourrelets ou rainures (32) dans le cône d'entrée (38) de la buse d'extraction du fil (13) sont disposés en étant espacés axialement les uns des autres.
  4. Buse d'extraction du fil selon la revendication 1, caractérisée en ce que l'on compte 2 à 6 bourrelets ou rainures (32).
  5. Buse d'extraction du fil selon la revendication 1, caractérisée en ce que dans la zone de sortie du cône d'entrée (38) de la buse d'extraction du fil (13) sont prévues 3 à 8 encoches (34).
  6. Buse d'extraction du fil selon l'une des revendications précédentes, caractérisée en ce que la surface de la buse d'extraction du fil (13) est polie au moins dans la zone du cône d'entrée (38).
  7. Buse d'extraction du fil selon l'une des revendications précédentes, caractérisée en ce que la buse d'extraction du fil (13) est fabriquée à partir de céramique fine qui se caractérise par une finesse particulière de ses grains et par une haute densité.
  8. Buse d'extraction du fil selon l'une des revendications précédentes, caractérisée en ce que la buse d'extraction du fil (13) est fabriquée par moulage par injection ou par moulage sous pression.
EP20030013005 2003-06-10 2003-06-10 Tuyère de sortie de fil Expired - Lifetime EP1486594B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20030013005 EP1486594B1 (fr) 2003-06-10 2003-06-10 Tuyère de sortie de fil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20030013005 EP1486594B1 (fr) 2003-06-10 2003-06-10 Tuyère de sortie de fil

Publications (2)

Publication Number Publication Date
EP1486594A1 EP1486594A1 (fr) 2004-12-15
EP1486594B1 true EP1486594B1 (fr) 2006-11-29

Family

ID=33185856

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030013005 Expired - Lifetime EP1486594B1 (fr) 2003-06-10 2003-06-10 Tuyère de sortie de fil

Country Status (1)

Country Link
EP (1) EP1486594B1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2130722B2 (de) * 1971-06-21 1976-04-15 Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt Vorrichtung zum offenend-spinnen von textilfasern
DE4224632B4 (de) * 1992-07-25 2004-05-27 Saurer Gmbh & Co. Kg Vorrichtung zum Offenend-Spinnen
US5437147A (en) * 1992-08-20 1995-08-01 Burckhardt America, Inc. Open end spinning device
DE19738382B4 (de) * 1997-09-03 2006-03-09 Saurer Gmbh & Co. Kg Fadenabzugsdüse

Also Published As

Publication number Publication date
EP1486594A1 (fr) 2004-12-15

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