EP0188220A2 - Appareil pour la production de fil à âme - Google Patents

Appareil pour la production de fil à âme Download PDF

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Publication number
EP0188220A2
EP0188220A2 EP86100147A EP86100147A EP0188220A2 EP 0188220 A2 EP0188220 A2 EP 0188220A2 EP 86100147 A EP86100147 A EP 86100147A EP 86100147 A EP86100147 A EP 86100147A EP 0188220 A2 EP0188220 A2 EP 0188220A2
Authority
EP
European Patent Office
Prior art keywords
fiber
core
fibers
air
point
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
EP86100147A
Other languages
German (de)
English (en)
Other versions
EP0188220A3 (en
EP0188220B1 (fr
Inventor
Louis Vignon
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
Heberlein Hispano SA
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, Heberlein Hispano SA filed Critical Maschinenfabrik Rieter AG
Priority to AT86100147T priority Critical patent/ATE92982T1/de
Publication of EP0188220A2 publication Critical patent/EP0188220A2/fr
Publication of EP0188220A3 publication Critical patent/EP0188220A3/de
Application granted granted Critical
Publication of EP0188220B1 publication Critical patent/EP0188220B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/36—Cored or coated yarns or threads

Definitions

  • the invention relates to a device for producing a winding yarn according to the preamble of patent claim 1.
  • Such a device is described in EP-A-128 863.
  • oriented, parallelized fibers held on the fiber feed and holding surface are fed to the soul.
  • the front ends of the supplied fibers are gripped by the rotating core and the fibers are wound onto the core.
  • the rear ends of the fibers are to be retained on the fiber feed and retention surface so that the fibers remain stretched and parallelized during winding. Since it can happen that the rear ends of the fibers prematurely detach from the fiber feed and holding surface, a fiber catching device is arranged in the area of the fiber transfer point, which is intended to hold back such rear fiber ends.
  • the fiber catching device has the shape of a small brush in the known device.
  • the effectiveness of such a mechanical fiber brush is insufficient if one tries to increase the working speed of the device, for example to over 300 m / min running speed of the core, the core having to rotate at several hundred thousand rpm .
  • a normal brush cannot reliably prevent the fibers from sticking out of the soul or even detaching from it under the influence of centrifugal force.
  • an attempt is made to increase the effect of the brush for example by using a denser brush, then irregularities and strong tension fluctuations occur in the yarn that is produced, which apparently causes fibers to stick to the bristles of the brush become gentle.
  • the brush gets dirty over time, so that its effect is not constant.
  • the object of the invention is therefore to design the fiber catching device in a device of the type specified in such a way that it fibers with a constant, controllable effect even at high levels, which leave the fiber feed and holding surface before they are wound up sufficiently on the core Working speeds can be stopped reliably until the fibers are completely wound on the soul.
  • the fiber catching device has an air-permeable surface and means for maintaining a negative pressure behind this surface.
  • the suction force is easily changed by regulating the vacuum and adapted to the conditions in the special case, e.g. can be adapted to the working speed of the device.
  • the effect of the air-permeable surface can be regulated constantly and precisely with negative pressure.
  • the swirl device consists of two opposing, approximately parallel friction disks 6 and 7, which rotate in opposite directions and touch the supplied yarn at a circumferential point U and set it in rotation. After the twist, the yarn then runs to a take-off device 8 and is then wound up in a conventional manner (not shown).
  • an endless filament or a combination of fiber sliver and continuous filament could also be used as the core.
  • the other stretched fiber sliver 5 is drawn onto a fiber feed and holding surface 9, which moves and comes into contact with the soul (fiber sliver 4) at a point C in front of the twister 6, 7.
  • the fiber feed and holding surface 9 is an annular, air-permeable (for example perforated) peripheral surface on a rotating hollow disc 10, in which a negative pressure is maintained by means of a suction line (not shown).
  • the speed of movement of the peripheral surface 9 is somewhat higher than the feed speed of the fiber sliver 5, so that the oriented, parallelized fibers of this fiber sliver are stretched onto the peripheral surface 9.
  • the fibers are then held by the negative pressure on the peripheral surface 9 and moved with this to the contact point C with the core (fiber sliver 4), where the front ends of the fibers are gripped by the rotating core and the fibers are wound onto the core.
  • the core With winding up the back ends of the fibers are on the um catch surface 9 retained (by the negative pressure prevailing in the hollow disk 10), so that the fibers remain taut and do not lose their orientation and parallelization.
  • the core with the covering fibers wound on it then runs as twisted yarn through the swirl device 6, 7 and to the take-off device 8.
  • the fibers fed on the peripheral surface 9 tend to under the influence of centrifugal force more and more detach from the peripheral surface 9 before they are completely wound on the soul.
  • the soul turns at the contact point C at several hundred thousand rpm. Fibers prematurely detached from the peripheral surface 9 can no longer be properly wound onto the soul. Fibers that are insufficiently captured by the soul could even be thrown off by the soul.
  • the fiber trapping device has an air-permeable surface in the form of a suction grille 11 which extends parallel to the axis of the core 4.
  • the suction grille 11 is arranged in the opening of a funnel 12, to which a negative pressure source (not shown) is connected via a suction line 13 and maintains a negative pressure behind the grille 11.
  • the fiber catching device has an air-permeable surface in the form of a perforated peripheral wall 14 of a rotating hollow disk 15, the interior of which is connected to a vacuum source (not shown) at least in the area of the contact point C.
  • Fibers fed from the fiber feed and holding surface 9 to the core 4, which fibers loosen when they are wound onto the core, are sucked against the peripheral wall 14 of the disk 15 and retained thereon.
  • the peripheral wall 14 moves at the contact point C in the opposite direction to the movement of the peripheral surface 9 and the core 4, as a result of which the fibers are tensioned and stretched even better during winding onto the core than in the embodiment according to FIG. 1.
  • the circumferential wall 14 could also move in the same direction as the movement of the circumferential surface 9 and the core 4 at the contact point C, in order to prevent feed fibers which have been scarcely detected by the core 4 from being pulled away from the core again .
  • the hollow disk 15 would rotate against the arrow shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Ropes Or Cables (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
EP86100147A 1985-01-17 1986-01-08 Appareil pour la production de fil à âme Expired - Lifetime EP0188220B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86100147T ATE92982T1 (de) 1985-01-17 1986-01-08 Vorrichtung zum herstellen eines umwindegarnes.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH213/85A CH665854A5 (de) 1985-01-17 1985-01-17 Vorrichtung zum herstellen eines umwindegarnes.
CH213/85 1985-01-17

Publications (3)

Publication Number Publication Date
EP0188220A2 true EP0188220A2 (fr) 1986-07-23
EP0188220A3 EP0188220A3 (en) 1990-01-17
EP0188220B1 EP0188220B1 (fr) 1993-08-11

Family

ID=4181841

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86100147A Expired - Lifetime EP0188220B1 (fr) 1985-01-17 1986-01-08 Appareil pour la production de fil à âme

Country Status (7)

Country Link
US (1) US4658574A (fr)
EP (1) EP0188220B1 (fr)
JP (1) JPH0651934B2 (fr)
AT (1) ATE92982T1 (fr)
CH (1) CH665854A5 (fr)
DE (1) DE3688849D1 (fr)
ES (1) ES8802461A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4823545A (en) * 1987-08-31 1989-04-25 Maschinenfabrik Rieter Ag Method of and apparatus for false-twist spinning
DE4004045A1 (de) * 1990-02-10 1991-08-14 Fritz Stahlecker Vorrichtung zum pneumatischen falschdrallspinnen
JPH0567050U (ja) * 1992-02-17 1993-09-03 株式会社東海理化電機製作所 配線基板装置
DE19815053B4 (de) * 1998-04-03 2006-01-05 Saurer Gmbh & Co. Kg Verfahren zum Herstellen eines Scheinzwirnes und Spinnmaschine hierfür
US20070142560A1 (en) * 2005-12-21 2007-06-21 Young-Ho Song Block copolymer particles

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3768243A (en) * 1971-04-12 1973-10-30 Us Agriculture Yarn twist control apparatus for electrostatic spinner
US4209965A (en) * 1976-12-21 1980-07-01 Bobkowicz E Universal spinning system
CS196916B1 (en) * 1977-12-29 1980-04-30 Stanislav Didek Frictional yarn spinning apparatus
DE2909615C2 (de) * 1978-05-26 1982-03-18 Ernst Dr. 4020 Linz Fehrer Vorrichtung zum Herstellen eines Garnes
DE2830669C2 (de) * 1978-07-12 1981-03-26 Peter 83236 Übersee Lippmann Verfahren und Vorrichtung zum Umspinnen eines Spinnträgers mit Fasermaterial
FR2461040A1 (fr) * 1979-07-09 1981-01-30 Inst Textile De France Procede et dispositif pour l'obtention d'un fil presentant sur sa longueur des zones de torsion alternativement de sens inverse
DE3135270A1 (de) * 1981-09-05 1983-03-24 Fritz 7347 Bad Überkingen Stahlecker Umwindegarnspinnaggregat
FR2520389A1 (fr) * 1982-01-26 1983-07-29 Asa Sa Dispositif pour etirer, condenser et transporter une meche de fibres lors d'une operation de filature
US4489540A (en) * 1982-01-26 1984-12-25 Asa S.A. Process and device for obtaining a spun yarn of fibres comprising an internal core and novel types of spun yarns thus made
FR2520390B1 (fr) * 1982-01-26 1984-05-25 Asa Sa
WO1984004550A1 (fr) * 1983-05-18 1984-11-22 Heberlein Hispano Sa Procede et dispositif pour la filature de fibres

Also Published As

Publication number Publication date
DE3688849D1 (de) 1993-09-16
ATE92982T1 (de) 1993-08-15
JPH0651934B2 (ja) 1994-07-06
EP0188220A3 (en) 1990-01-17
EP0188220B1 (fr) 1993-08-11
CH665854A5 (de) 1988-06-15
US4658574A (en) 1987-04-21
JPS61167036A (ja) 1986-07-28
ES550990A0 (es) 1988-06-01
ES8802461A1 (es) 1988-06-01

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