EP0393360B1 - Procédé et dispositif pour la production de rubans fibreux avec fibre parallèle à partir d'ensemble de fibres désordonnées - Google Patents

Procédé et dispositif pour la production de rubans fibreux avec fibre parallèle à partir d'ensemble de fibres désordonnées Download PDF

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Publication number
EP0393360B1
EP0393360B1 EP90105070A EP90105070A EP0393360B1 EP 0393360 B1 EP0393360 B1 EP 0393360B1 EP 90105070 A EP90105070 A EP 90105070A EP 90105070 A EP90105070 A EP 90105070A EP 0393360 B1 EP0393360 B1 EP 0393360B1
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EP
European Patent Office
Prior art keywords
fiber web
carding
drum
fiber
carding drum
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
EP90105070A
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German (de)
English (en)
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EP0393360A1 (fr
Inventor
René Gloor
Michael Müller
Alfred Beeler
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.)
Siegfried Peyer AG
Original Assignee
Siegfried Peyer AG
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Publication date
Application filed by Siegfried Peyer AG filed Critical Siegfried Peyer AG
Publication of EP0393360A1 publication Critical patent/EP0393360A1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G25/00—Lap-forming devices not integral with machines specified above
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)

Definitions

  • the invention relates to a method according to the preamble of claim 1 and a device according to the preamble of claim 3.
  • Mechanized devices for producing such slivers are already known, for example from the special print G.Spiridonow in Melliand Textilberichte 59 (1978).
  • This known apparatus essentially consists of a simple roller drafting system, i.e. a pair of feed rollers and a pair of output rollers. It goes without saying that with this simple, hand-operated device, the production of fiber tapes with a parallelized fiber layer is time-consuming and not very reproducible. Manual operation requires a high level of skill and also causes the raw material to come into constant contact with the bare skin, so that contamination with sweat cannot be prevented.
  • the invention seeks to remedy this.
  • the invention has for its object to provide a method for producing fiber tapes with parallelized fiber layer from random fiber collectives, which works fully automatically and without fiber damage.
  • the invention achieves the stated object with a method which has the features of claim 1 and a device which has the features of claim 3.
  • FIG. 1 shows a schematic cross section through a device for carrying out the method according to the invention.
  • a preferred device for performing the method according to the invention is shown, which in its basic structure of a first and second, in both directions of rotation A and B optionally (with drive means not shown), cylindrical clothing drum 3.8 each with one on the cylinder jacket attached clothing 9 or 10, a feed device 1, 2, which allows the first clothing drum 3 to be loaded with the pre-portioned fiber material which is in a tangled position, a drafting system 7, which is attached between the first and second clothing drum 3, 8, a first transport strand 11 , which is the double-sided transport of the nonwoven fabric between the first clothing drum 3 and the drafting system 7, a second transport strand 12, which allows the non-woven material to be conveyed on both sides between the second clothing drum 8 and the drafting system 7, a separating device 4 which is arranged in an oscillating manner between the two clothing drums 3, 8 and a control device (not shown) for the There is interaction between the individual device elements.
  • Step A loading process
  • the pre-portioned fiber material in the tangled state reaches the first clothing drum 3 via a pair of feed rollers 1 and a dissolving roller 2 interacting therewith. as well as a pre-parallelization of the fiber material.
  • the fiber material thus pre-oriented is deposited in the form of a fleece in the clothing 9 on the cylinder jacket of the first clothing drum 3.
  • the first clothing drum 3 rotates in the direction of rotation A until the loading process is completed.
  • the device is then stopped for the next process.
  • the feed roller pair 1 and the opening roller 2 interacting therewith are preferably driven by a motor and electronically controlled, but can in principle also be done manually.
  • Step B separation of the nonwoven fabric
  • the self-contained fiber fleece now attached to the clothing 9 located on the drum surface, must now be separated in a straight line along the length of a jacket of the first clothing drum 3 to be drawn into the drafting system 7.
  • a separating comb 4 which is arranged in an oscillating manner between the two clothing drums 3, 8 pierces the nonwoven fabric and separates it by a movement predetermined by the separating curve 5.
  • the needles 18 of the separation comb 4 pierce the nonwoven fabric and lift it off the clothing drum 3.
  • the fleece between the retention point 6 and the needles 18 is interrupted.
  • the separation curve 5 and the lever mechanism of the separation comb 4 which in the preferred embodiment is a parallelogram joint, now pivot the separation comb 4 in such a way that the head end of the nonwoven fabric 16, 17 slides out of the needles 18.
  • the trailing end of the fleece is pressed against the first clothing drum 3 by a hold-down device 6.
  • Step C and D (pulling the nonwoven into the drafting system)
  • the head end of the fleece which now protrudes from the circumference of the first clothing drum 3 by the separation process, is turned by rotating the drum in the direction of rotation A by the amount of the angle of rotation w (the exact amount of this angle depends on the geometric relationships of the respective device and can be determined empirically in a simple manner) brought the drafting system inlet position 13.
  • the direction of rotation of the first clothing drum 3 is changed from A to B, the ticks of the clothing 9 coming into the removal position and the head end of the fleece detaching from the drum circumference being carried along by the transport strand 11 and being introduced into the drafting system.
  • the nonwoven fabric now runs through the symmetrical 4-apron drafting system 7, with a positive delay between the clamping points K1 and K2.
  • the amounts of distortion that is to say the differences in the peripheral speeds between the straps 14 of the right-hand device part I and the straps 15 of the left-hand device part II, can be freely selected and are preferably twice as much per run or run.
  • Step E doubling of the nonwoven fabric
  • the fleece detached according to step C is extended (e.g. doubled) by the factor x (stretching factor) in the drafting unit 7.
  • the nonwoven thus elongated is wound several times onto the second clothing drum 8 rotating in the direction of rotation B, in other words doubled.
  • the hooks of the set 10 are in the receiving position.
  • the fleece is separated and unwound analogously to steps B and C and again drawn and drawn into the drafting unit 7 with the new head end analogously to step E.
  • the process thus runs in a completely analogous manner from machine side II to machine side I.
  • the fiber material is then subjected to as many stretching-doubling-stretching cycles until a degree of parallelization that is sufficient for the intended use is reached.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (5)

  1. Procédé de fabrication de bandes de fils à couche de fibres emmêlées rendues parallèles, caractérisé par les étapes suivantes:
    A) bobinage sur un premier tambour à garniture (3) d'une première partie du matériau fibreux emmêlé;
    B) séparation en un emplacement précis du feutre en forme d'anneau de fibres préorientées bobinées sur le premier tambour à garniture (3);
    C) débobinage du feutre de fibres du premier tambour à garniture (3), à partir du premier bout libre du feutre de fibres;
    D) étirage du feutre de fibres d'un facteur x;
    E) bobinage du feutre de fibres étirées sur un second tambour à garniture (8); et
    F) séparation en un emplacement précis du feutre doublé bobiné sur le second tambour à garniture (8);
    G) débobinage du feutre de fibres séparé du second tambour à garniture (8), par un des bouts libres du feutre de fibres;
    H) étirage du feutre de fibres d'un facteur x:
    I) bobinage du feutre de fibres étirées sur le premier tambour à garniture (3);
    J) répétition des étapes B) à I) du procédé; et
    K) interruption de la séquence de répétitions après l'étape G.
  2. Procédé selon la revendication 1, caractérisé en ce que pendant l'opération de séparation de l'étape B), le bout traînant du feutre de fibres est comprimé contre le premier tambour à garniture (3).
  3. Dispositif destiné à l'exécution du procédé selon la revendication 1 ou 2, caractérisé par un premier et un second tambour cylindrique à garniture (3, 8) pouvant être entraînés à volonté dans les deux sens de rotation (A, B), présentant chacun une garniture (9, 10) disposée pour former une enveloppe cylindrique, un dispositif d'amenée (1,2) qui réalise le recouvrement du premier tambour à garniture (3) par le lot prédécoupé de matière fibreuse emmêlée, un dispositif d'étirage (7) installé entre le premier et le second tambour à garniture (3, 8), une première bande transporteuse (11) qui effectue le transport latéral du feutre de fibres entre le premier tambour à garniture (3) et le dispositif d'étirage (7), une seconde bande transporteuse (12), qui effectue le transport du feutre de fibres entre le second tambour à garniture (8) et le dispositif'd'étirage (7), un dispositif de séparation (4) disposé à oscillation entre les deux tambours à garniture (3, 8) et un dispositif de commande servant à faire coopérer les différents éléments du dispositif.
  4. Dispositif selon la revendication 3, caractérisé en ce que le dispositif de séparation (4), qui présente de préférence la forme d'un peigne de séparation, est disposé à déplacement le long d'une courbe de séparation (5) et effectue la séparation en un endroit précis du feutre de fibres bobiné sur les tambours à garniture (3, 8) ainsi que le débobinage du feutre séparé des tambours à garniture (3, 8), par le bout libre du feutre de fibres et le long d'une génératrice de l'enveloppe des tambours à garniture (3, 8).
  5. Dispositif selon la revendication 3 ou 4, caractérisé en ce qu'un dispositif de retenue (6) est prévu en plus du dispositif de séparation (4), pour pouvoir comprimer sur le tambour à garniture (3) ou (8) le bout traînant du feutre de fibres pendant l'opération de séparation.
EP90105070A 1989-04-18 1990-03-17 Procédé et dispositif pour la production de rubans fibreux avec fibre parallèle à partir d'ensemble de fibres désordonnées Expired - Lifetime EP0393360B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1468/89 1989-04-18
CH1468/89A CH681092A5 (fr) 1989-04-18 1989-04-18

Publications (2)

Publication Number Publication Date
EP0393360A1 EP0393360A1 (fr) 1990-10-24
EP0393360B1 true EP0393360B1 (fr) 1993-05-19

Family

ID=4211190

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90105070A Expired - Lifetime EP0393360B1 (fr) 1989-04-18 1990-03-17 Procédé et dispositif pour la production de rubans fibreux avec fibre parallèle à partir d'ensemble de fibres désordonnées

Country Status (4)

Country Link
US (1) US4980951A (fr)
EP (1) EP0393360B1 (fr)
CH (1) CH681092A5 (fr)
DE (1) DE59001473D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH689127A5 (de) * 1994-02-10 1998-10-15 Zellweger Uster Ag Verfahren zur Messung der Reissfestigkeit von Fasern.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA672046A (en) * 1963-10-08 W. Robinson Brian Creeling apparatus
DE185718C (fr) *
DE2110599B2 (de) * 1971-03-05 1978-04-27 Schuller, Werner Hugo Wilhelm, 8022 Gruenwald Verfahren zur Herstellung eines Glasfaservlieses nach dem Naßvliesverfahren
DE3532021A1 (de) * 1985-09-07 1987-03-19 Spinnbau Gmbh Verfahren und krempel zur vliesherstellung aus fasermaterial
DE3708211C2 (de) * 1987-03-13 1998-05-07 Truetzschler Gmbh & Co Kg Vorrichtung und Verfahren zur Verbesserung des Kardierprozesses einer Karde oder Krempel

Also Published As

Publication number Publication date
DE59001473D1 (de) 1993-06-24
CH681092A5 (fr) 1993-01-15
EP0393360A1 (fr) 1990-10-24
US4980951A (en) 1991-01-01

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