EP0279434A1 - Procédé et dispositif pour améliorer un fil fabriqué dans le rotor d'un métier à filer à bout libre - Google Patents

Procédé et dispositif pour améliorer un fil fabriqué dans le rotor d'un métier à filer à bout libre Download PDF

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Publication number
EP0279434A1
EP0279434A1 EP88102323A EP88102323A EP0279434A1 EP 0279434 A1 EP0279434 A1 EP 0279434A1 EP 88102323 A EP88102323 A EP 88102323A EP 88102323 A EP88102323 A EP 88102323A EP 0279434 A1 EP0279434 A1 EP 0279434A1
Authority
EP
European Patent Office
Prior art keywords
yarn
wire
false
draw
false twist
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
EP88102323A
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German (de)
English (en)
Other versions
EP0279434B1 (fr
Inventor
Heinz-Georg Wassenhoven
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
W Schlafhorst AG and Co
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6321427&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0279434(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by W Schlafhorst AG and Co filed Critical W Schlafhorst AG and Co
Publication of EP0279434A1 publication Critical patent/EP0279434A1/fr
Application granted granted Critical
Publication of EP0279434B1 publication Critical patent/EP0279434B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/90—Arrangements with two or more spinning or twisting devices of different types in combination
    • 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
    • D01H4/04—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 contact of fibres with a running surface
    • D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor

Definitions

  • the invention relates to methods and apparatus for improving a real wire generated in the rotor of an open-end spinning device, passed through a yarn take-off nozzle, and then at false twist edges arranged at an angle to the thread path, first directed to one side and then again to the opposite side from its direction and then a pair of draw-off rolls of yarn.
  • the articles made from the yarn are characterized by a somewhat hard grip.
  • the object of the invention is to improve the spinning result and also to give the fabric produced from the spun yarn, in particular knitwear or knitwear, a softer feel.
  • this object is achieved with respect to the method in that after passing the last false twist edge arranged at an angle to the thread path and before passing through the pair of take-off rollers, the running yarn is forced onto a yarn spreading and / or vibrating guiding false wire, the outer fiber ends of the running yarns are spread radially.
  • the yarn produced in this way is characterized by a higher hairiness and leads to the desired softer feel in the finished article.
  • the running yarn is caused to spread fibers by forcing centrifugal forces.
  • centrifugal forces prevail in a thread balloon.
  • the running yarn After passing the last false twist edge arranged at an angle to the thread course, the running yarn is advantageously exposed to a cyclone flow.
  • the running yarn is advantageously provided with a false wire reinforcing the real wire on the feed side by means of the cyclone flow.
  • the yarn Before passing through the cyclone flow, the yarn receives a stronger wire and thus a stronger twist.
  • the piece of yarn running between the cyclone flow and the clamping point formed by the pair of draw-off rollers is set in vibration and subjected to centrifugal forces which result in the outer fiber ends being spread apart from the fiber structure.
  • the object of the invention is achieved in that between the last false twist edge and the draw-off roller pair is arranged a false-wire device which is traversed by the yarn and which prevents the formation of fiber-spreading vibrations and / or centrifugal forces in the clamping point formed between the false-wire device and the pair of draw-off rollers existing piece of yarn enabling distance from the pair of draw rollers.
  • the outer fiber ends spread apart from the fiber structure and this is the cause of the greater hairiness, which leads to a softer feel in the finished article, which is special knitted and crocheted is advantageous.
  • the yarn take-off speed can be high with a relatively low twist, so that the invention also increases the productivity of the open-end spinning device, the overall spinning result being better than in the prior art.
  • the false wire device has a device for generating a cyclone flow rotating about the longitudinal axis of the yarn.
  • the device for generating the cyclone flow advantageously has a tube through which the yarn flows, into which at least one tangential channel carrying compressed air opens.
  • the direction of rotation of the cyclone advantageously coincides with the direction of rotation of the real wire of the yarn, so that the feed-side yarn section has a false wire reinforcing the real wire.
  • a tube bent to one side out of the thread path is connected to the yarn take-off nozzle, said tube having at least one false twist edge arranged at an angle to the thread path and constricting the free tube cross section at the tube radius line having the smallest radius of curvature, at least one further at the end of the tube , arranged at an angle to the thread path and the yarn to the other side guiding from its direction false twist edge.
  • the drawing shows a longitudinal section through a device according to the invention.
  • the open-end spinning device designated as a whole by 1, has a rotor 2, in the fiber collecting groove 3 of which spinning fibers are continuously introduced in a manner not shown here, while the rotor interior in the direction of arrow 4 over the rotor rim 5 and under a cover 6 covering the rotor 2 is continuously vented through.
  • a yarn take-off nozzle 7 is inserted centrally in the cover 6, to which a pipe 9 bent from the thread course is connected to one side, here upwards, with the interposition of a yarn guide funnel 8.
  • the tube 9 has three consecutive, diagonally to the thread run, the free tube cross-section, which is otherwise circular, on the tube curvature line 10 having the smallest radius of curvature constricting false twist edges 11, 12, 13.
  • the false twist edges 11, 12, 13 are formed by pins, the bores lying at an angle to the thread path and penetrating the tube jacket are inserted in such a way that they protrude from the tube jacket line 10 having the smallest radius of curvature into the free cross section of the tube 9, as the drawing shows, in particular, using the example of the false twist edge 11.
  • the tube 9 is pressed into a cylindrical socket 16 of the cover 6 with the addition of a sealing ring 15.
  • another false twist edge 14 which is also arranged obliquely to the thread run. It directs the yarn 17 produced in the rotor 2, which first passes through the yarn take-off nozzle 7, is then deflected upward from its running direction by the false twist edges 11, 12 and 13, now again to the opposite side from its direction.
  • the false twist edge 14 is located at the sloping end of another tube 18 on the yarn input side, which projects into the tube 9 at an angle to the tube axis of the tube 9.
  • a pneumatic false wire device 19 connects to the tube 18.
  • the yarn 17 passes through the false wire device 19 and then through a pair of draw-off rollers 20, 21.
  • the draw-off roller 20 can be driven by means of a shaft 22 in the direction of the arrow 23, while the draw-off roller 21 with a pressing force as a contact roller running against friction against the draw-off roller 20 or the yarn 17 can be created.
  • the yarn 17 After passing through the pair of draw rollers 20, 21, the yarn 17 is wound into a bobbin in a manner not shown here.
  • the pneumatic false wire device 19 consists of a cladding tube 24 into which an annular channel 25 is incorporated.
  • the cladding tube 24 is pressed onto the tube 18. It has a tubular swirl insert 26 which serves as a device for generating a cyclone flow Z and which has four tangential channels 27 which extend slightly at an angle to the yarn running direction at the level of the ring channel 25.
  • the swirl insert 26 is held in the cladding tube 24 by a screw connection 28.
  • the screw connection 28 carries a yarn outlet tube 29 which is widened like a funnel toward the yarn outlet side.
  • the cladding tube 24 has a threaded bore into which a hose connection piece 30 is screwed.
  • a compressed air hose 31 terminates in the hose connection piece and leads to a compressed air source via a switchable valve (not shown here).
  • the yarn take-off direction is indicated by an arrow 32.
  • the false twist edges 11 to 14 are aligned so that their direction coincides with the direction of the yarn wire present on the respective edge.
  • the orientation of the tangential channels 27 also takes into account the yarn wire, so that the cyclone flow Z acts clockwise on the yarn 17 with right-hand wire and left-handed with left-handed wire.
  • the running yarn 17 experiences a wire reinforcement in the yarn section 17 ⁇ lying in front of the pneumatic fiber spreading device 19 and a counter-twist in the yarn section 17 ⁇ lying between the pneumatic false wire device 19 and the pair of draw-off rollers 20, 21.
  • the false wire dissolves after leaving the cyclone flow Z at the latest at the nip point given by the draw-off roller pair 20, 21 and the real wire, which the rotor 2 as yarn producer now issues to the yarn 17 with great spinning stability, remains.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Cyclones (AREA)
EP88102323A 1987-02-20 1988-02-18 Procédé et dispositif pour améliorer un fil fabriqué dans le rotor d'un métier à filer à bout libre Expired - Lifetime EP0279434B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873705479 DE3705479A1 (de) 1987-02-20 1987-02-20 Verfahren und vorrichtung zum verbessern eines in dem rotor einer offenend-spinnvorrichtung erzeugten garns
DE3705479 1987-02-20

Publications (2)

Publication Number Publication Date
EP0279434A1 true EP0279434A1 (fr) 1988-08-24
EP0279434B1 EP0279434B1 (fr) 1991-09-11

Family

ID=6321427

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88102323A Expired - Lifetime EP0279434B1 (fr) 1987-02-20 1988-02-18 Procédé et dispositif pour améliorer un fil fabriqué dans le rotor d'un métier à filer à bout libre

Country Status (5)

Country Link
US (1) US4829762A (fr)
EP (1) EP0279434B1 (fr)
JP (1) JP2604781B2 (fr)
DE (2) DE3705479A1 (fr)
IT (1) IT1215916B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0341405A1 (fr) * 1988-04-08 1989-11-15 W. SCHLAFHORST AG & CO. Procédé et dispositif pour améliorer un fil fabriqué dans le rotor d'un métier à filer à bout libre

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5437147A (en) * 1992-08-20 1995-08-01 Burckhardt America, Inc. Open end spinning device
DE4235024C2 (de) * 1992-10-16 1996-07-25 Rieter Ingolstadt Spinnerei Fadenabzugsrohr
DE4334485A1 (de) * 1993-10-09 1995-04-13 Schlafhorst & Co W Offenend-Spinnvorrichtung
DE4418723C1 (de) * 1994-05-28 1995-08-31 Rieter Ingolstadt Spinnerei Offenend-Rotorspinnvorrichtung
DE19718768A1 (de) * 1997-05-05 1998-11-12 Rieter Ingolstadt Spinnerei Verfahren und Vorrichtung zum pneumatischen Reinigen eines Fadenabzugsrohres
DE19915924B4 (de) * 1999-04-09 2009-12-10 Rieter Ingolstadt Gmbh Fadenführungsrohr
US7870891B2 (en) * 2004-05-29 2011-01-18 Kilr-Chilr, Llc Systems, devices and methods for regulating temperatures of tanks, containers and contents therein
CN103343408B (zh) * 2013-07-05 2016-01-20 宜宾纬络纺织有限公司 转杯纺纱加捻工艺
DE102014107181A1 (de) * 2014-05-21 2015-11-26 Maschinenfabrik Rieter Ag Falschdrallvorrichtung für eine Offenendspinnvorrichtung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2017167A (en) * 1978-03-28 1979-10-03 Alsacienne Constr Meca Method and devise for locally reducing the pitch of helices formed by the strands of a flexible twisted thread like product
GB2127442A (en) * 1982-09-08 1984-04-11 Alsacienne Constr Mat Tex Open end spinning devices
GB2147618A (en) * 1983-08-19 1985-05-15 Howa Machinery Ltd Process and apparatus for preparing fasciated spun yarns
EP0156739A1 (fr) * 1984-02-24 1985-10-02 Société dite: ASA S.A. (société anonyme) Dispositif pour l'obtention d'un file de fibres
EP0167441A1 (fr) * 1984-06-28 1986-01-08 Centre Technique Industriel dit: INSTITUT TEXTILE DE FRANCE Procédé et dispositif perfectionnés de filature du type à fibres libérées ou partiellement libérées
DE3539383A1 (de) * 1984-11-06 1986-05-22 Murata Kikai K.K., Kyoto Verfahren zur herstellung eines gesponnenen fadens und vorrichtung zur durchfuehrung des verfahrens
DE3609114A1 (de) * 1986-03-19 1987-09-24 Schlafhorst & Co W Vorrichtung zum oe-spinnen

Family Cites Families (7)

* 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
GB1569123A (en) * 1976-01-26 1980-06-11 Mackie & Sons Ltd J Open-end spinning machines
JPS58120825A (ja) * 1981-12-29 1983-07-18 Toyoda Autom Loom Works Ltd オ−プンエンド精紡機の糸引出装置
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
JPS60199924A (ja) * 1984-03-21 1985-10-09 Asahi Chem Ind Co Ltd 紡毛糸調嵩高紡績糸の製造方法
EP0220546A1 (fr) * 1985-10-15 1987-05-06 Maschinenfabrik Rieter Ag Dispositif de filature à bout libre

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2017167A (en) * 1978-03-28 1979-10-03 Alsacienne Constr Meca Method and devise for locally reducing the pitch of helices formed by the strands of a flexible twisted thread like product
GB2127442A (en) * 1982-09-08 1984-04-11 Alsacienne Constr Mat Tex Open end spinning devices
GB2147618A (en) * 1983-08-19 1985-05-15 Howa Machinery Ltd Process and apparatus for preparing fasciated spun yarns
EP0156739A1 (fr) * 1984-02-24 1985-10-02 Société dite: ASA S.A. (société anonyme) Dispositif pour l'obtention d'un file de fibres
EP0167441A1 (fr) * 1984-06-28 1986-01-08 Centre Technique Industriel dit: INSTITUT TEXTILE DE FRANCE Procédé et dispositif perfectionnés de filature du type à fibres libérées ou partiellement libérées
DE3539383A1 (de) * 1984-11-06 1986-05-22 Murata Kikai K.K., Kyoto Verfahren zur herstellung eines gesponnenen fadens und vorrichtung zur durchfuehrung des verfahrens
DE3609114A1 (de) * 1986-03-19 1987-09-24 Schlafhorst & Co W Vorrichtung zum oe-spinnen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0341405A1 (fr) * 1988-04-08 1989-11-15 W. SCHLAFHORST AG & CO. Procédé et dispositif pour améliorer un fil fabriqué dans le rotor d'un métier à filer à bout libre

Also Published As

Publication number Publication date
DE3864694D1 (de) 1991-10-17
JPS63295723A (ja) 1988-12-02
JP2604781B2 (ja) 1997-04-30
US4829762A (en) 1989-05-16
IT1215916B (it) 1990-02-22
IT8819461A0 (it) 1988-02-18
EP0279434B1 (fr) 1991-09-11
DE3705479A1 (de) 1988-09-01

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