EP0371948B1 - Verfahren und Vorrichtung für die Herstellung von Textilvlies - Google Patents

Verfahren und Vorrichtung für die Herstellung von Textilvlies Download PDF

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Publication number
EP0371948B1
EP0371948B1 EP89870185A EP89870185A EP0371948B1 EP 0371948 B1 EP0371948 B1 EP 0371948B1 EP 89870185 A EP89870185 A EP 89870185A EP 89870185 A EP89870185 A EP 89870185A EP 0371948 B1 EP0371948 B1 EP 0371948B1
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EP
European Patent Office
Prior art keywords
cylinders
comber
speed
machines
weight
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
EP89870185A
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English (en)
French (fr)
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EP0371948A1 (de
Inventor
Michel François Mathieu Joseph Beckers
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Asselin SA
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Asselin SA
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Publication date
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Publication of EP0371948A1 publication Critical patent/EP0371948A1/de
Application granted granted Critical
Publication of EP0371948B1 publication Critical patent/EP0371948B1/de
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Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D04H18/00—Needling machines
    • D04H18/02—Needling machines with needles
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/36—Driving or speed control arrangements
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/46—Doffing or like arrangements for removing fibres from carding elements; Web-dividing apparatus; Condensers
    • 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

  • This invention relates to a production line for nonwoven textiles obtained by needling.
  • the purpose of the card is to create, from individual fibers, a light, coherent but fragile veil.
  • the purpose of the blamire is to deposit this veil in several superimposed and progressively offset layers, so as to produce a mattress or a sheet of a higher surface weight, see for example GB-A-1 099 594
  • the purpose of needling machines is to consolidate this mattress by interpenetration of fibers and layers. Planks filled with a large number of vertical needles regularly strike up and down the mattress of fibers parading horizontally below these needle planks. Fibers from the upper layers are drawn by the needles to the lower layers, and a felting effect follows which gives the mattress greater resistance, this resistance depending strongly on the penetration density of the needles in the sheet.
  • the reel receives the needled product and puts it in the form of rolls suitable for transport to the later stages of manufacture.
  • this ply undergoes changes in the distribution of the fibers.
  • volume density of the material increases as the needling progresses, in the sense that the thickness of the sheet is greatly reduced by the interpenetration of the fibers of the different layers.
  • V shape obtained at the end of the production line therefore constitutes a cause of loss of profitability of the process, which the producers obviously try to reduce to the minimum, without however being able to control it perfectly.
  • the object of the present invention is to provide producers with an additional and effective means for reducing material losses, by creating better sectional regularity of the product leaving the needling machines.
  • the method consists in creating artificially, by the card and the blamire, a tablecloth whose weight varies on the width approximately inversely with the distribution of weight which one would obtain at the exit of the needlepunchers in the traditional process.
  • FIG 1 there is shown a section of the output of a card 1, a machine well known in textile circles.
  • the last drum 2 is the painter who delivers the final web 3 from the card, this web being detached from the painter 2 by the beating comb 4.
  • This veil is deposited on a conveyor belt 5 which transports it to the blamere 6.
  • the latter by means of other conveyor belts 7 and following a circuit of which there are many variants in the industry, conducts the veil towards another conveyor belt 8 arranged under the conveyor belts 7 and whose direction of travel 11 (FIG. 2) is 90 degrees relative to that 10 of the conveyor belts 7.
  • the driving rollers 9 move alternately from the end A to the end B of the conveyor belt 8.
  • FIG. 2 shows how the layers are deposited on the conveyor belt 8.
  • the number of reciprocations performed by the cylinders 9 while the conveyor belt 8 advances from C to D is an integer, so that the edges of the successive layers coincide and that the sheet has an equal weight at all points.
  • the curve observed has a shape of the type shown in figure 3.3.
  • the object of the present invention is to restore at the outlet of the last needling machine a constant weight distribution over the width of the ply.
  • the frequency that we choose for the speed variation of the doffer is obviously the frequency of the reciprocating movement of the cylinders 9.
  • the weight of the veil which is deposited must be on the conveyor belt 8 is maximum.
  • the weight of the web which is deposited on the conveyor belt 8 must be minimum. Between these extreme positions the weight of the veil can vary according to any curve to be chosen according to experience; in particular this curve can be a straight line.
  • This delay constitutes an additional parameter of the system, which can be easily taken into account by using a computer 15 to regulate the speed of the comber 2 according to the position of the cylinders 9.
  • the computer 15 receives the information of the position of the cylinders 9 of the sensor 17, calculates the corresponding speed of the painter 2, but does not send the corresponding instruction to the motor control 19 of the painter only after the delay which has been determined. This period can be determined by calculation or experimentally.
  • the action of the needling machine also reduces the amplitude of the initial counter-V, and a weight curve is obtained at its exit as shown in Figure 4.3., Which is the goal of the producer of nonwoven , namely to obtain a product as flat as possible at the exit of the production line.
  • the movement of the cylinders 9 is carried out by a system comprising chains for translation, these chains being driven by chain wheels 18 themselves controlled by a DC motor 14.
  • the motor 14 is controlled by a computer 15, which calculates its speed and, as soon as the cylinders 9 have achieved the translational stroke necessary to achieve the desired ply width, commands it to brake in a very short time and to reverse its direction of rotation, therefore the direction displacement movement of the cylinders 9.
  • a sensor 16 placed in the center of the conveyor belt 8 gives the computer the midpoint G of the sheet (fig. 2).
  • the operator chooses the width of the GE or GF sheet on the computer on each side of this midpoint.
  • An incremental encoder 17 is placed on the chain wheel 18, an encoder which permanently provides the computer 15 with the indication of the position of the cylinders 9. Knowing that the midpoint G of the ply, given by the sensor 16, represents the point where the veil 12 deposited should be the heaviest, and that the extreme points E and F, calculated by the computer 15, represent the points where the veil should be the lightest, the computer can calculate at any time speed of the doffer 2 to obtain the desired sail weight. This requires that we have entered in the computer the value of the weight of the veil that we want in the center or at the ends and the curve of the weights that we want to follow.
  • the invention also covers all the other embodiments the aim of which would be to periodically vary the speed of the card doffer 2 with the aim of obtaining at the outlet of the blamire 6 a ply whose weight is deliberately irregular, so as to counteract the 'effect of destruction of the regularity of the weight of the tablecloth normally created by needling machines or machines according to the blamire.
  • the invention also covers cases where the blamire is replaced by another machine intended to superimpose several layers of veil so as to produce a thicker sheet. We will call these machines “stacking machines”.
  • the invention also covers cases where the needling machines are replaced by other machines intended to consolidate the sheet or carry out any treatment on this sheet. We will call these machines “consolidation machines”.

Landscapes

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

Claims (6)

  1. Verfahren zum Herstellen von Textilvlies, ausgehend von einer Karde (1) mit Abnehmer (2), einer Aufbreit- oder Ausbreiteinrichtung (6) mit die Faserschicht ablegenden Zylindern (9) oder einer anderen Überlagerungseinrichtung und einer oder mehreren Nadelungseinrichtungen oder anderen Verfestigungseinrichtungen,
    dadurch gekennzeichnet, daß
    Mittel zum permanenten, einem periodischen Gesetz folgenden Verändern des Flächengewichts der von der Karde gelieferten Faserschicht vorgesehen sind, welche die Geschwindigkeit des Ausgangsabnehmers derart steuern, daß am Ausgang der Überlagerungseinrichtung ein Vlies mit über seiner Breite variablem Flächengewicht in einer Weise erhalten wird, daß den von den Verfestigungseinrichtungen hervorgerufenen Verformungen der Flächengewichtsverteilung entgegengewirkt wird.
  2. Vorrichtung zum Durchführen des Verfahrens gemäß Patentanspruch 1, umfassend eine Karde (1) mit Abnehmer (2), eine Aufbreit- oder Ausbreiteinrichtung (6) mit die Faserschicht ablegenden Zylindern (9) oder einer anderen Überlagerungseinrichtung und eine oder mehrere Nadelungseinrichtungen oder andere Verfestigungseinrichtungen,
    dadurch gekennzeichnet, daß
    die Aufbreit- oder Ausbreiteinrichtung (6) ein Erfassungsystem (17) der Position der die Faserschicht ablegenden Zylinder (9), ein Berechnungssystem (15) für die Geschwindigkeit des Abnehmers (2) als Funktion der Position der Zylinder (9) und ein Geschwindigkeitsvariationssystem (19) des Abnehmers (2) als Funktion des Resultats des Berechnungssystems (15) umfaßt.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Erfassungsystem (17) der Position der Zylinder (9) ein optischer Codeumsetzer ist, der in der mechanischen Steuerung der Verlagerung der Zylinder (9) oder in einem zum Durchführen dieser Verlagerung bestimmten Motor (14) eingebaut ist und ein der Position der Zylinder (9) proportionales Signal liefert.
  4. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Berechnungssystem (15) ein Computer ist, der das der Position der Zylinder (9) entsprechende Signal empfängt, die Variation der Geschwindigkeit des Abnehmers (2) als Funktion dieser Position berechnet, die Verzögerung berechnet, nach welcher diese Variation der Geschwindigkeit stattfinden soll, und ein entsprechendes elektronisches Signal zum Geschwindigkeitsvariationssystem (19) des Abnehmers (2) leitet.
  5. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß das Geschwindigkeitsvariationssystem (19) des Abnehmers (2) einen Gleichstrommotor und einen elektronischen Variator mit Tyristoren und/oder Transistoren umfaßt.
  6. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß das Geschwindigkeitsvariationssystem (19) des Abnehmers (2) einen Wechselstrommotor und einen elektronischen Frequenzvariator umfaßt.
EP89870185A 1988-11-30 1989-11-22 Verfahren und Vorrichtung für die Herstellung von Textilvlies Expired - Lifetime EP0371948B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE8801349 1988-11-30
BE8801349A BE1002605A3 (fr) 1988-11-30 1988-11-30 Procede et dispositif pour la fabrication de textiles non-tisses.

Publications (2)

Publication Number Publication Date
EP0371948A1 EP0371948A1 (de) 1990-06-06
EP0371948B1 true EP0371948B1 (de) 1993-09-22

Family

ID=3883748

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89870185A Expired - Lifetime EP0371948B1 (de) 1988-11-30 1989-11-22 Verfahren und Vorrichtung für die Herstellung von Textilvlies

Country Status (4)

Country Link
US (1) US5060347A (de)
EP (1) EP0371948B1 (de)
BE (1) BE1002605A3 (de)
DE (1) DE68909377T2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1936016A2 (de) 2006-12-22 2008-06-25 Asselin-Thibeau Verfahren zur Einstellung der lokalen Eigenschaften eines Vliesstoffs und entsprechende Anlage

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4010174A1 (de) * 1990-03-30 1991-10-02 Hollingsworth Gmbh Verfahren zum ablegen eines vlieses oder dgl., sowie vliesbandleger
ES2031744A6 (es) * 1990-08-16 1992-12-16 Truetzschler Gmbh & Co Kg Mejoras en el objeto de la patente principal n{ 9002136, presentadas el 07 08 90, relativas a un procedimiento y dispositivo para el arrollado inicial automatico de un velo de fibras formando una cinta, por ejemplo en una carda.
FR2677046B1 (fr) * 1991-06-03 1995-01-13 Asselin Ets Etaleur-nappeur.
DE4304988C1 (de) * 1993-02-18 1994-04-07 Autefa Maschinenfab Verfahren und Vorrichtung zur Herstellung eines Vlieses mit veränderlicher Dicke
IT1280805B1 (it) * 1995-01-26 1998-02-11 Fonderie Officine Riunite F O Sistema per la cardatura di fibre tessili.
FR2770855B1 (fr) 1997-11-07 2000-01-28 Asselin Procede et dispositif pour produire une nappe textile
WO1999027173A1 (fr) * 1997-11-19 1999-06-03 Pierre Marcotte Peigneur a position variable pour le controle du grammage de textiles non-tisses
FR2794475B1 (fr) * 1999-06-01 2001-08-17 Asselin Procede pour reguler le profil d'une nappe non-tissee et installation de production s'y rapportant
DE20211365U1 (de) 2002-07-27 2003-10-09 Autefa Automation Gmbh Vorrichtung zur Faserbehandlung
DE10329648B4 (de) * 2003-07-01 2005-06-16 Oskar Dilo Maschinenfabrik Kg Vorrichtung zur Vliesbildung
DE502007006030D1 (de) * 2007-07-09 2011-02-03 Dilo Kg Maschf Oskar Verfahren zum Herstellen einer verfestigten Vliesstoffbahn
EP2175056B1 (de) * 2008-10-07 2012-02-01 Oskar Dilo Maschinenfabrik KG Vorrichtung und Verfahren zur Übergabe eines Vlieses
ITFI20110169A1 (it) * 2011-08-05 2013-02-06 Trafi S R L Dispositivo per la produzione di veli per tessuto-non-tessuto, processo per la loro produzione e veli e tessuto-non-tessuto così ottenuti.
DE202013104946U1 (de) * 2013-11-05 2015-02-06 Autefa Solutions Germany Gmbh Vliesleger
FR3081885B1 (fr) 2018-05-31 2020-09-11 Andritz Asselin Thibeau Systeme de formation d’une nappe de fibres
CN114606610B (zh) * 2022-03-14 2023-04-07 重庆市永川区植成家俱厂 棕垫制作工艺

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FR1299112A (fr) * 1961-06-09 1962-07-20 Regnier Ets Procédé et dispositif pour l'introduction dans une aiguilleteuse, d'une nappe de fibres textiles naturelles ou artificielles
US3183557A (en) * 1961-12-20 1965-05-18 Du Pont Crosslapping method and apparatus
US3523059A (en) * 1963-11-21 1970-08-04 Celanese Corp Needled fibrous batting and method of making the same
DE1287980B (de) * 1964-04-17
US3920511A (en) * 1971-12-06 1975-11-18 Albany Int Corp Non-woven papermakers felt
US3883333A (en) * 1973-10-25 1975-05-13 Ppg Industries Inc Method and apparatus for forming a uniform glass fiber continuous mat
US4186470A (en) * 1976-09-15 1980-02-05 Phillips Petroleum Company Apparatus useful in control of edge uniformity in nonwoven fabrics
DE2706976C3 (de) * 1977-02-18 1979-08-09 Hoechst Ag, 6000 Frankfurt Verfahren zur Vermeidung von Abfall bei der Vliesherstellung
US4107822A (en) * 1977-06-08 1978-08-22 Roger Alan Brown Process for making a batt of modified basis weight profile and lengthwise uniformity
DE3125946A1 (de) * 1981-07-01 1983-01-20 Oskar Dilo Maschinenfabrik Kg, 6930 Eberbach "florleger"
AT384834B (de) * 1985-06-21 1988-01-11 Fehrer Textilmasch Vorrichtung zum herstellen von genadelten papiermaschinenfilzen
GB8600901D0 (en) * 1986-01-15 1986-02-19 Cosmopolitan Textile Co Ltd Web-laying
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1936016A2 (de) 2006-12-22 2008-06-25 Asselin-Thibeau Verfahren zur Einstellung der lokalen Eigenschaften eines Vliesstoffs und entsprechende Anlage

Also Published As

Publication number Publication date
EP0371948A1 (de) 1990-06-06
DE68909377T2 (de) 1994-01-13
DE68909377D1 (de) 1993-10-28
US5060347A (en) 1991-10-29
BE1002605A3 (fr) 1991-04-09

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