EP0206956B1 - Spinnvorrichtung zur Herstellung von überzogenen Garnen - Google Patents

Spinnvorrichtung zur Herstellung von überzogenen Garnen Download PDF

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Publication number
EP0206956B1
EP0206956B1 EP86420157A EP86420157A EP0206956B1 EP 0206956 B1 EP0206956 B1 EP 0206956B1 EP 86420157 A EP86420157 A EP 86420157A EP 86420157 A EP86420157 A EP 86420157A EP 0206956 B1 EP0206956 B1 EP 0206956B1
Authority
EP
European Patent Office
Prior art keywords
fibers
core
drawing system
outlet
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.)
Expired - Lifetime
Application number
EP86420157A
Other languages
English (en)
French (fr)
Other versions
EP0206956A3 (en
EP0206956A2 (de
Inventor
Henri Berger
Michel Clement
Marcel Schoumacher
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.)
Devtex
Original Assignee
Devtex
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Filing date
Publication date
Application filed by Devtex filed Critical Devtex
Publication of EP0206956A2 publication Critical patent/EP0206956A2/de
Publication of EP0206956A3 publication Critical patent/EP0206956A3/fr
Application granted granted Critical
Publication of EP0206956B1 publication Critical patent/EP0206956B1/de
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
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/11—Spinning by false-twisting
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/04—Guides for slivers, rovings, or yarns; Smoothing dies
    • 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
    • D02G3/367—Cored or coated yarns or threads using a drawing frame

Definitions

  • the present invention relates to an improvement in spinning techniques making it possible to produce fiber yarns and more particularly fiber yarns having a structure such that they comprise a central core made up of staple fibers, themselves optionally comprising a core of a continuous filament, this core being covered with an external sheath also made up of discontinuous fibers, these fibers possibly being of the same nature or of a different nature from the fibers forming the core.
  • the invention therefore relates to a device allowing the implementation of the aforementioned method, this device being characterized in that the fibers intended to form the core are, between the outlet of the drawing system and the guide surface where said core is associated with the covering fibers, also subjected to the action of a second condensing element also being in the form of a rotary guide and which is associated with a movable roller blocking the communicated rise in torsion by the false twist pin.
  • a condenser element will be used which, if necessary, can be presented in a similar manner to French patent 2,520,389 (corresponding to US-A-4,487,397 in the name of the Applicant), this element in the form of a rotary guide whose surface is V-shaped.
  • this element in the form of a rotary guide whose surface is V-shaped.
  • it will however be in the form of a cylinder pierced in its middle part over its entire periphery of orifices connected to a source suction.
  • the two condensing elements used in the device according to the invention namely that allowing the supply of fibers intended to form the core and that on which the covering fibers are deposited around the core thus formed can be placed either parallel to the stretching system, or, according to a preferred embodiment orthogonally. In both cases, the fibers coming from the drawing system and which are intended to form the core will envelop the condensing element on a part of its periphery before the arrival at the torsion blocking roller.
  • the torsion blocking roller can be made of metal, ceramic, rubber and will preferably be mounted to means making it possible to adjust its pressure against the surface of the condenser; the roller can, of course, be disengaged when a machine stops or during an intervention.
  • the installation according to the invention essentially comprises a conventional stretching system (1) for each working position, designated by the general reference (1 ) and which, in the present case, is a conventional sleeve system, well known to technicians and which will therefore not be described in detail.
  • a conventional stretching system for each working position, designated by the general reference (1 ) and which, in the present case, is a conventional sleeve system, well known to technicians and which will therefore not be described in detail.
  • any other equivalent stretching system could be used.
  • a guide surface (4) constituted by a rotating disc, also designated by the term "condenser” and which is in the form of a rotary, hollow cylinder pierced over its entire periphery with orifices (5).
  • the rotary cylinder is subjected to the action of a suction source.
  • a friction false-twist spindle (6) is arranged downstream of the rotary condenser guide (4).
  • a call system is provided before the winding means (not shown) which are constituted, for example, by a winding system with tangential drive not imparting additional twist to the spun yarn formed. Of course, any other winding system which possibly makes it possible to communicate an additional twist could be used.
  • the drawing system (1) common to the fibers intended to form the core and the covering of the core yarn to be produced consists of two systems with sleeve (1a, 1b), operating in parallel, a device commonly used in spinning fibers.
  • the system (1a) makes it possible to deliver the fibers intended to form the cover while the other system (1b) delivers the fibers intended to form the core.
  • the fibers coming from the system (1a) are delivered on the guide surface (or condenser) (4), rotary, and come to wrap this surface, while the other fibers coming from the system (1b), and which are intended to form the core, are brought tangentially to this surface in the extension of the false twist spindle (6).
  • the twist communicated by the spindle (6) goes up along the formed wire and makes it possible to trap the fibers coming from the drawing system (1 a).
  • the fibers from the system (1b) intended to form the core are, between the outlet of the drawing system (1b) and the guide surface (4) where the formed core (7) is associated with the covering fibers (8), subjected to the action of a second condenser element designated by the general reference (9) and which is also in the form of a rotary guide (10) associated with a movable roller ( 11) blocking the rise in torsion communicated by the false torsion pin (6).
  • FIGS. 1, 2 and 3 Such an additional condenser element is illustrated in FIGS. 1, 2 and 3, the embodiment illustrated by FIG. 3 in which this condenser element is disposed orthogonally with respect to the outlet of the drawing train being however preferable.
  • such a device has very many advantages in that it makes it possible to obtain wires having greater regularity and in which the core thread can be much finer. Furthermore, it is possible, as is clear from the embodiment illustrated in FIGS. 7 to 9, to produce a very compact assembly in which the covering condenser element (element 4), and the condenser element d 'soul (9), the false twist pin (6) are grouped in a very small volume. Finally, in this arrangement, it is possible to provide separating elements (12,13,14) between the two condensers preventing any loss of fibers. Finally, in such devices, it is easily possible to incorporate an additional core wire, for example a continuous filament inside the fibrous core, this additional element being brought between the condenser element (9) and the pressure roller (10).
  • an additional core wire for example a continuous filament inside the fibrous core, this additional element being brought between the condenser element (9) and the pressure roller (10).

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  • 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)

Claims (5)

1. Spinnvorrichtung zum Herstellen von Garnfasern, die einen mittigen Kern aus diskontinuierlichen Fasern aufweisen, die mit einer äußeren Ummantelung bedeckt sind, die gleichermaßen aus diskontinuierlichen Fasern besteht, wobei man die Fasern, die dazu bestimmt sind, den inneren Kern zu bilden, mittels einer Spindel (6) einer vorübergehenden Vordrehung unterwirft, wobei man auf den so geformten Faden (7) einzelne Fasern (8) aufschleudert, wobei stromaufwärts der Vordrehspindel (6) das Aufschleudern der einzelnen Fasern (8) auf den Kern im Bereich vor dem Verdrehen mittels einer beweglichen Führungsfläche (4) durchgeführt wird, auf die die Fasern tangential zugeführt werden, und die dazu neigt, diesen an ihrem freien Ende eine Zugkraft zu verleihen, wobei der Kern (7) im Hilblick auf die zuvor erwähnte Führungsfläche (4) in einer Richtung, die sich mit der Zuführrichtung der Fasern kreuzt, tangential versetzt ist, wobei die Gesamtheit der Fasern (Kern und Ummantelung) der Wirkung eines gemeinsamen Zugsystems (1) unterworfen ist, an dessen Ausgang
- ein Teil der Fasern, die dazu bestimmt sind, die Ummantelung zu bilden, nach und nach auf die bewegliche Führungsfläche (4) zugeführt werden, auf der sie liegend gehalten werden, wobei diese Fläche dazu neigt, auf das freie Ende der Fasern eine Zugkraft auszuüben;
- der andere Teil der Fasern, der dazu bestimmt ist, den Kern zu bilden, getrennt von der Fläche (4) gehalten ist, so daß diese stromabwärts des Aufschleuderbereiches des ersten Teils der Fasern auf die Fläche (4) in tangentiale Berührung mit dieser zugeführt werden, dadurch gekennzeichnet, daß die Fasern, die dazu bestimmt sind, den Kern (7) zu bilden, zwischen dem Ausgang des Zugsystems (1) und der Führungsfläche (4), wo der Kern mit den Ummantelungsfasern verbunden wird, gleichermaßen der Wirkung eines zweiten Kondenserelements (9) unterworfen werden, das gleichermaßen die Form einer drehbaren Führung (10) aufweist, und das mit einer beweglichen Rolle (11) verbunden ist, die das Stromaufwärtssteigen der Verdrehung, die durch die Vordrehspindel (6) erteilt wird, blockiert.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die drehbare Führung (10) des zweiten Kondenserelements (9) die Form eines in seinem mittigen Bereich hohlen Zylinders aufweist, auf dessen gesamter Umfangsfläche Öffnungen vorhanden sind, die mit einer Absaugquelle verbunden sind.
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die beiden Kondenserelemente (4, 9) rechtwinklig zum Ausgang des Zugsystems (1) angeordnet sind.
4. Einrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die vom Zugsystem (1 b) ausgehenden Fasern, die dazu bestimmt sind, den Kern zu bilden, das Kondenserelement (10), bevor sie die die Verdrehung blockierende Rolle (11) erreichen, auf einem Teil dessen Umfanges bedecken.
5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß das Zugsystem (1) vertikal angeordnet ist, wohingegen die Kondenserelemente (9, 4) jeweils horizontal unterhalb des Ausgangs des Zugsystems (1) angeordnet sind.
EP86420157A 1985-06-25 1986-06-19 Spinnvorrichtung zur Herstellung von überzogenen Garnen Expired - Lifetime EP0206956B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8509973A FR2583783A1 (fr) 1985-06-25 1985-06-25 Dispositif pour etirer, condenser et transporter une meche de fibres lors d'une operation de filature.
FR8509973 1985-06-25

Publications (3)

Publication Number Publication Date
EP0206956A2 EP0206956A2 (de) 1986-12-30
EP0206956A3 EP0206956A3 (en) 1987-12-02
EP0206956B1 true EP0206956B1 (de) 1990-01-24

Family

ID=9320811

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86420157A Expired - Lifetime EP0206956B1 (de) 1985-06-25 1986-06-19 Spinnvorrichtung zur Herstellung von überzogenen Garnen

Country Status (5)

Country Link
US (1) US4757680A (de)
EP (1) EP0206956B1 (de)
JP (1) JPS61296129A (de)
DE (1) DE3668476D1 (de)
FR (1) FR2583783A1 (de)

Families Citing this family (11)

* 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
FR2650309A1 (fr) * 1989-07-27 1991-02-01 Devtex Machine de filature permettant de realiser des files de fibres presentant des effets de fantaisie sur leur longueur et nouveaux types de files ainsi obtenus
FR2667618A1 (fr) * 1990-10-04 1992-04-10 Devtex Procede pour l'obtention d'un file de fibres et dispositif pour sa mise en óoeuvre.
US5568719A (en) * 1992-06-11 1996-10-29 Prospin Industries, Inc. Composite yarn including a staple fiber covering a filament yarn component and confining the filament yarn component to a second thickness that is less than a first thickness of the filament in a relaxed state and a process for producing the same
US5383331A (en) * 1992-06-11 1995-01-24 Proctor; Charles W. Composite comprising staple fiber and filament yarn
US5802826A (en) * 1993-08-06 1998-09-08 The United States Of America As Represented By The Secretary Of Agriculture Production of core/wrap yarns by airjet and friction spinning in tandem
US5619848A (en) * 1995-08-09 1997-04-15 Prospin Industries, Inc. Method and apparatus for automatically removing an imperfection from spun filament yarn and staple fibers
DE19815050B4 (de) * 1998-04-03 2005-09-22 Saurer Gmbh & Co. Kg Verdichtungsstreckwerk für eine Spinnmaschine
DE19815053B4 (de) * 1998-04-03 2006-01-05 Saurer Gmbh & Co. Kg Verfahren zum Herstellen eines Scheinzwirnes und Spinnmaschine hierfür
DE19815051A1 (de) * 1998-04-03 1999-10-14 Zinser Textilmaschinen Gmbh Spinnmaschine mit einem einen Saugrotor aufweisenden Streckwerk
DE10318817A1 (de) * 2003-04-17 2004-11-04 Wilhelm Stahlecker Gmbh Spinnvorrichtung mit einer Faserverband-Verdichtungseinrichtung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
FR2465805A1 (fr) * 1979-09-20 1981-03-27 Asa Sa Machine pour l'obtention de fils autotordus
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
FR2545108B1 (fr) * 1983-04-29 1986-04-04 Juillard Yves Procede de filature et dispositif pour la mise en oeuvre de ce procede
FR2560230B1 (fr) * 1984-02-24 1987-12-04 Asa Sa Procede pour l'obtention d'un file de fibres

Also Published As

Publication number Publication date
DE3668476D1 (de) 1990-03-01
EP0206956A3 (en) 1987-12-02
US4757680A (en) 1988-07-19
FR2583783A1 (fr) 1986-12-26
JPS61296129A (ja) 1986-12-26
EP0206956A2 (de) 1986-12-30

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