EP0220546A1 - Dispositif de filature à bout libre - Google Patents

Dispositif de filature à bout libre Download PDF

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Publication number
EP0220546A1
EP0220546A1 EP86113783A EP86113783A EP0220546A1 EP 0220546 A1 EP0220546 A1 EP 0220546A1 EP 86113783 A EP86113783 A EP 86113783A EP 86113783 A EP86113783 A EP 86113783A EP 0220546 A1 EP0220546 A1 EP 0220546A1
Authority
EP
European Patent Office
Prior art keywords
bead
channel
nozzle
yarn
spiral
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
EP86113783A
Other languages
German (de)
English (en)
Inventor
Ernst Ott
Christoph Kuratle
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 EP0220546A1 publication Critical patent/EP0220546A1/fr
Ceased 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

  • the present invention relates to a spinning device according to the preamble of claim 1.
  • German patent DE 32 20 402 C2 Such a device is known from German patent DE 32 20 402 C2.
  • the thread to be drawn off forms a balloon in the balloon guide, the diameter of which is subjected to multiple changes with each revolution.
  • Balloon interference elements are provided, against which the thread abuts in order to cause thread formation.
  • this is disadvantageous for the thread, since this is excessively stressed by the plucking processes taking place.
  • a draw-off funnel is known from the Czechoslovakian patent specification I29 036, which shows a projection which is spiral in the conical part of the funnel and helical in its tubular part runs. There is practically no effect of the projection in the tubular part on the thread and the overall effect is insufficient.
  • U.S. Patent No. 4,258,541 shows an open end spinner with an angled tube in which a wire having a number of turns is pressed against the inner surface of the tube. This is done for the purpose of temporarily increasing the twist of the thread.
  • the provision of a wire winding means that the wire must be made of an elastic metal. A ceramic material, for example, cannot be provided in its place.
  • the yarn formed in open-end spinning has less hairiness and has a harder grip than the yarn formed by ring spinning. While these properties are desirable for many purposes, they are particularly undesirable for the manufacture of jersey, i.e. knitted fabrics.
  • the aim is therefore to further develop open-end spinning in such a way that yarns with a soft feel can also be produced with it. Since such yarns may not be rotated as much, the difficulty is that in many cases they do not meet the requirements required for the open-end spinning process. This can result in significant disadvantages, such as insufficient tensile strength and uniformity, or an excessive number of thick and thin spots or nits, or an unacceptably high number of thread breaks result.
  • the yarn values should also be made less dependent on the fiber materials and the yarn type. In particular, the production of yarns with a soft feel should be possible at higher rotor speeds than is the case with today's machines.
  • the combination of the spiral bead on the trigger nozzle with the bead attached in the trigger channel results in an improvement in tensile strength, the number of thin spots, the number of thick spots and the number of nits compared to the open-end spinning processes currently used. Fluctuations in thread tension and resistance to screwing are reduced. The softness of the handle is greatly improved.
  • the precautions according to the invention form a construction which is extremely durable and, in a particular embodiment with a nozzle, which is manufactured using an extractable core, is relatively easy to manufacture.
  • the spinning device shown in FIG. 1 has a rotor 12 fixed with a shaft 11, which parts 11 and 12 can be rotated together about an axis 13. Through a feed channel, not shown, fiber material is supplied to the inside of the rotor II. Spun yarn l4 is drawn off via a draw-off arrangement l5.
  • the latter comprises a funnel-shaped extraction nozzle 16.
  • a funnel-shaped extraction nozzle 16 On this there is an elongated elevation or a bead l7.
  • the bead l7 spirally runs around the axis over the inner surface of the conical part l8 of the nozzle l6. It is limited to the conical part 18, as can be seen from FIGS. 2 and 3.
  • a bead 17 forming a single spiral is shown. However, beads in the form of a multi-start spiral can also be provided.
  • the funnel-shaped nozzle 16 has a tubular one Part 19.
  • the draw-off arrangement l5 also comprises a swirl stowage element 20.
  • This has a tubular thread draw-off channel 2l, which is of curved shape.
  • Elongated elevations or beads 22 are also present in the interior of the channel 2l. It can be seen from FIGS. 1 and 4 that the beads 22 only extend over part of the circumference of the channel wall. In relation to the curved channel section, they are located on the half of the channel 2l which extends towards the center of the curvature of this section and extends along the length of the channel.
  • the beads 22 are arranged obliquely with respect to the yarn 14 or the longitudinal axis 23 of the channel 2l shown only in FIG. 4.
  • the rotor l2 rotates at high speed.
  • the yarn l4 that forms continuously is drawn off via the draw-off arrangement 15.
  • the conical part l8 is covered by the encircling yarn that grinds on the bead l7.
  • the thread is given a so-called S-pitch or a Z-pitch.
  • the yarn 14 has an S pitch. In this case it is rotated in the sense as indicated by the hatching in the drawing.
  • the fibers on the side of the yarn 14 facing the observer have a course similar to an S shape (in contrast to an opposite direction) set twist Z-shape similar course).
  • the beads 17 and 22 have the oblique position shown in FIGS. 3 and 4 with respect to the thread 14, which runs from bottom to top in operation according to these figures.
  • the inclination or angular position of the beads 17 and 22 with respect to the pitch or orientation of the fibers is, however, in the same direction, if not in parallel, ie the beads 17 and 22 and the pitch of the yarn 14 are in the same direction Inclination.
  • the beads 17, 22 produce an additional twist of the yarn l4 moving over them in the longitudinal direction, with the effect that the yarn l4 has a greater twist forming an S-slope in the area of these beads 17 than that caused by generated the rotation of the rotor l2.
  • a swirl is thus formed in the area of these beads 17, 22. This disappears again after the yarn 14 has moved over the beads 17, 22.
  • the yarn therefore has increased strength in the area of its deflection points, where its load is greatest.
  • the extraction nozzle l6 and the spiral bead l7 are made of ceramic Made of material.
  • the nozzle is shaped in such a way that the ceramic material to be fired is introduced into a base mold and the part with the bead l7 and the tubular part l9 is inserted by inserting an appropriately shaped cover core is formed.
  • the cover core can be removed again after firing without damaging the nozzle 16.
  • the nozzle 16 can also be easily removed from the basic shape into which the ceramic material was filled before firing. The possibility of repeated use of the basic shape and cover core is the reason for the relatively cheap possibility of manufacturing the nozzles.
  • An advantageous embodiment is one in which, in the case of a single-start spiral, the spiral bead l7 has one to three revolutions.
  • a preferred embodiment of the beads 22 in the swirl stowage element 20 is that two or three of them are provided.
  • the beads 22 of the swirl dam element 20 are made of ceramic material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP86113783A 1985-10-15 1986-10-04 Dispositif de filature à bout libre Ceased EP0220546A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4434/85 1985-10-15
CH443485 1985-10-15

Publications (1)

Publication Number Publication Date
EP0220546A1 true EP0220546A1 (fr) 1987-05-06

Family

ID=4276061

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86113783A Ceased EP0220546A1 (fr) 1985-10-15 1986-10-04 Dispositif de filature à bout libre

Country Status (3)

Country Link
US (1) US4665687A (fr)
EP (1) EP0220546A1 (fr)
JP (1) JPS6290330A (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0296412A1 (fr) * 1987-06-25 1988-12-28 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Tube de sortie de fil pour enlever un fil d'un dispositif à filer à bout libre
DE3723504A1 (de) * 1987-07-16 1989-01-26 Schlafhorst & Co W Drallstauelement fuer eine offenend-rotorspinnvorrichtung
EP0449068A2 (fr) * 1990-03-29 1991-10-02 Maschinenfabrik Rieter Ag Entonnoir rotatif, particulièrement pour une ailette sur une machine à broches
DE4039755A1 (de) * 1990-12-13 1992-06-17 Schlafhorst & Co W Garnabzugseinrichtung einer oe-rotorspinnvorrichtung
US6886322B2 (en) 2003-07-16 2005-05-03 W. Schlafhorst Ag & Co. Yarn withdrawal nozzle
DE19738382B4 (de) * 1997-09-03 2006-03-09 Saurer Gmbh & Co. Kg Fadenabzugsdüse
AT505070B1 (de) * 2004-07-21 2008-12-15 Rieter Ag Maschf Garnabzugsdüse für eine offenend-rotorspinnvorrichtung
AT504812B1 (de) * 2004-03-15 2008-12-15 Rieter Ag Maschf Garnabzugsdüse für eine offenend- rotorspinnvorrichtung
DE10255723B4 (de) * 2002-04-06 2012-06-06 Oerlikon Textile Gmbh & Co. Kg Fadenabzugsdüse

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3640217A1 (de) * 1986-11-25 1988-05-26 Fritz Stahlecker Oe-rotorspinnmaschine
DE3705479A1 (de) * 1987-02-20 1988-09-01 Schlafhorst & Co W Verfahren und vorrichtung zum verbessern eines in dem rotor einer offenend-spinnvorrichtung erzeugten garns
US4712369A (en) * 1987-05-11 1987-12-15 Burckhardt America, Inc. Yarn treating device for open-end spinning frames
US5323599A (en) * 1988-04-08 1994-06-28 W. Schlafhorst & Co. Process and apparatus for producing hairiness in an open-end spinning yarn
DE3824283C1 (fr) * 1988-07-16 1989-10-26 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt, De
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
US5718110A (en) * 1993-02-12 1998-02-17 Novibra Gmbh Arrangement for open-end rotor spinning
DE19718768A1 (de) * 1997-05-05 1998-11-12 Rieter Ingolstadt Spinnerei Verfahren und Vorrichtung zum pneumatischen Reinigen eines Fadenabzugsrohres
DE10001468A1 (de) * 2000-01-15 2001-07-19 Rieter Ingolstadt Spinnerei Fadenabzugsdüse für eine Offenend-Spinnmaschine
DE102007010144A1 (de) * 2007-02-28 2008-09-04 Deutsche Institute für Textil- und Faserforschung Stuttgart Fadenführeinrichtung für Ringspinnmaschinen
CN102747461A (zh) * 2012-08-03 2012-10-24 浙江日发纺织机械股份有限公司 一种转杯纺纱金属阻捻头
DE102014107181A1 (de) * 2014-05-21 2015-11-26 Maschinenfabrik Rieter Ag Falschdrallvorrichtung für eine Offenendspinnvorrichtung
EP3276057B1 (fr) * 2016-07-28 2020-01-01 Rieter Ingolstadt GmbH Unité guide-fil, métier à filer à bout ouvert et procédé de fonctionnement d'un poste de filage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2262137A1 (fr) * 1974-01-14 1975-09-19 Kostromskoe Sp Konstruk
GB2127442A (en) * 1982-09-08 1984-04-11 Alsacienne Constr Mat Tex Open end spinning devices
GB2217442A (en) * 1988-04-22 1989-10-25 Philips Electronic Associated Temperature compensated thermal radiation detectors

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2130724C3 (de) * 1971-06-21 1978-06-08 Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt Fadenabzugskanal an einer Offenend-Spinnvorrichtung
DE2130722B2 (de) * 1971-06-21 1976-04-15 Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt Vorrichtung zum offenend-spinnen von textilfasern
CS223961B2 (en) * 1978-03-28 1983-11-25 Alsacienne Constr Meca Facility for knitting the released fibres
DE3207136C2 (de) * 1982-02-27 1994-03-17 Schlafhorst & Co W Verfahren und Vorrichtung zum Herstellen eines Fadens durch Offen-End-Spinnen
DE3220402C2 (de) * 1982-05-29 1985-03-21 W. Schlafhorst & Co, 4050 Mönchengladbach Verfahren und Vorrichtung zum Herstellen eines mit einer OE-Rotorspinnmaschine gesponnenen Garns
DE3344741A1 (de) * 1983-12-10 1985-06-20 W. Schlafhorst & Co, 4050 Mönchengladbach Fadenabzugsduese fuer eine offenend-rotor-spinnmaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2262137A1 (fr) * 1974-01-14 1975-09-19 Kostromskoe Sp Konstruk
GB2127442A (en) * 1982-09-08 1984-04-11 Alsacienne Constr Mat Tex Open end spinning devices
GB2217442A (en) * 1988-04-22 1989-10-25 Philips Electronic Associated Temperature compensated thermal radiation detectors

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0296412A1 (fr) * 1987-06-25 1988-12-28 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Tube de sortie de fil pour enlever un fil d'un dispositif à filer à bout libre
DE3720967A1 (de) * 1987-06-25 1989-01-12 Schubert & Salzer Maschinen Fadenabzugsrohr zum abziehen eines fadens auf einer offenend-spinnvorrichtung
DE3723504A1 (de) * 1987-07-16 1989-01-26 Schlafhorst & Co W Drallstauelement fuer eine offenend-rotorspinnvorrichtung
US4843812A (en) * 1987-07-16 1989-07-04 W. Schlafhorst & Co. Open-end rotor spinning device with improved twist choking member
EP0449068A2 (fr) * 1990-03-29 1991-10-02 Maschinenfabrik Rieter Ag Entonnoir rotatif, particulièrement pour une ailette sur une machine à broches
EP0449068A3 (en) * 1990-03-29 1991-12-04 Maschinenfabrik Rieter Ag Spinning funnel, particularly for flyer on a roving frame
DE4039755A1 (de) * 1990-12-13 1992-06-17 Schlafhorst & Co W Garnabzugseinrichtung einer oe-rotorspinnvorrichtung
DE19738382B4 (de) * 1997-09-03 2006-03-09 Saurer Gmbh & Co. Kg Fadenabzugsdüse
DE10255723B4 (de) * 2002-04-06 2012-06-06 Oerlikon Textile Gmbh & Co. Kg Fadenabzugsdüse
US6886322B2 (en) 2003-07-16 2005-05-03 W. Schlafhorst Ag & Co. Yarn withdrawal nozzle
AT504812B1 (de) * 2004-03-15 2008-12-15 Rieter Ag Maschf Garnabzugsdüse für eine offenend- rotorspinnvorrichtung
AT505070B1 (de) * 2004-07-21 2008-12-15 Rieter Ag Maschf Garnabzugsdüse für eine offenend-rotorspinnvorrichtung

Also Published As

Publication number Publication date
US4665687A (en) 1987-05-19
JPS6290330A (ja) 1987-04-24

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