EP0082794B1 - Dispositif pour la réalisation d'une nappe constituée de fils parallèles et procédé pour la formation d'articles complexes divers comportant une telle nappe - Google Patents

Dispositif pour la réalisation d'une nappe constituée de fils parallèles et procédé pour la formation d'articles complexes divers comportant une telle nappe Download PDF

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Publication number
EP0082794B1
EP0082794B1 EP82420178A EP82420178A EP0082794B1 EP 0082794 B1 EP0082794 B1 EP 0082794B1 EP 82420178 A EP82420178 A EP 82420178A EP 82420178 A EP82420178 A EP 82420178A EP 0082794 B1 EP0082794 B1 EP 0082794B1
Authority
EP
European Patent Office
Prior art keywords
weft
pins
yarn
yarns
web
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
Application number
EP82420178A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0082794A1 (fr
Inventor
Jean Curinier
Philippe Pinet
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.)
Fils dAuguste Chomarat et Cie SA
Original Assignee
Fils dAuguste Chomarat et Cie 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 Fils dAuguste Chomarat et Cie SA filed Critical Fils dAuguste Chomarat et Cie SA
Priority to AT82420178T priority Critical patent/ATE13916T1/de
Publication of EP0082794A1 publication Critical patent/EP0082794A1/fr
Application granted granted Critical
Publication of EP0082794B1 publication Critical patent/EP0082794B1/fr
Expired 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/04—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles
    • D04H3/045—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles for net manufacturing
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/12—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form

Definitions

  • the present invention relates to an improved device for the formation of a sheet made up of parallel threads, spaced from each other, extending transversely with respect to the length of said sheet; it also relates to a process making it possible to produce complex articles directly, in particular non-woven textile grids, one of the constituents of which is formed by such a ply.
  • weft plies can also be used for the production of knitted articles produced according to the technique known as "weft frontal insertion", a technique which consists in incorporating over the entire width of the knitted fabric, during its manufacture, a weft thread in each row of stitches or according to a determined rhythm.
  • weft frontal insertion a technique which consists in incorporating over the entire width of the knitted fabric, during its manufacture, a weft thread in each row of stitches or according to a determined rhythm.
  • a well-known technique for producing such weft plies is described in particular in French patents 1 335418, 1 367 567 and 1 537 811.
  • a plurality of weft threads are distributed around spikes arranged on two endless chains (or belts) spaced from each other by a distance corresponding to the width of the sheet that is to be formed.
  • the weft yarn dispensing element is disposed above the two endless chains comprising the pins and is constituted by a rotating assembly which, during its rotation, deposits the wires between and around said pins.
  • Such a device is complex, in particular by the fact that it requires particular guide members for positioning the weft threads around the pins when it is desired to obtain sheets made up of threads that are strictly parallel to one another. Furthermore, maintaining the weft threads around the pins is fairly difficult to achieve, the threads being able to escape easily from the pins.
  • the wire distributing element is constituted by one or more endless belts distributing one or more wires by revolution around two lateral belts, spaced apart, on which pins are fixed as previously serving to hold the ends of the wires frame.
  • the maintenance of the weft threads around the pins is not perfectly guaranteed and the risks of escape are high.
  • US Patent 3,594,256 describes a solution in which one (or more) weft thread (s) are distributed by means of a rotary rotating arm which, with each revolution, passes in front of spaced pins intended to hold the thread.
  • the pins are not carried by belts but are mounted on a drum inside which they can be retracted to allow the escape of the complex formed. Again, the maintenance of the ends of the weft son is not perfectly assured and, moreover, the wefts are not spaced regularly from each other.
  • the present invention overcomes the drawbacks of the prior techniques.
  • the device according to the invention aims to solve the problem of maintaining the ends of the weft threads in the devices according to which the weft ply is produced by distribution around pins supported by two endless belts. It also makes it possible to solve the problem of maintaining the parallelism between two consecutive frames and especially of a regular and constant spacing between said frames.
  • the device according to the invention makes it possible to solve these problems.
  • said thread during the removal if, for example, a single weft thread is distributed, said thread will be deposited on one of the sides, straight for example, so as to pass under two spikes while on the other side, left in this case, it will be distributed so as to pass under four spikes.
  • the invention therefore relates to a device allowing the production of weft plies made up of parallel threads spaced from each other.
  • This device is of the type comprising on the one hand, distribution elements (1) of at least one weft thread (2) and, on the other hand, positioning, holding and advancing elements on the web of weft yarn made, in the form of two continuous endless bands (3-4) preferably parallel, spaced from each other by a distance equal to the width of the web that is desired forming and which are controlled in synchronism with the distribution means (1) of the weft threads (2).
  • the positioning elements (3-4) consist of two endless belts driven by an intermediary of two pulleys (5-6) carried by a single driven shaft (7) by a motor (8) associated with a speed variator (9) making it possible to adjust the synchronism between the advance of the elements (3-4) and the movement of the distribution member (1).
  • the two belts (3-4) are of the same length and additional tensioning elements can be provided to guide them and / or keep them under tension.
  • the distribution means (1) are constituted by a rotary fin inside which passes the weft thread to be distributed but, of course, any other equivalent means could be used, for example of the type constituted by an endless belt or a rotating crown fitted with thread guide elements. Since such distribution elements are well known to technicians, they will not be described in detail in the following description. Similarly, when several weft threads are distributed simultaneously, it is avoided tooth that the supply of said weft thread to the distribution means will be carried out so as to prevent the threads from becoming tangled. These means being also well known, they will not be described in detail.
  • pins designated by the general reference P, will be arranged laterally on the endless elements (3-4) and project beyond the surface of the pulleys (11-12).
  • the weft thread (2) is supported on the outer faces of the support pulleys (11-12), so that the length of the support rope on one pulleys, (11) for example, twice as large as that on the other pulley (12).
  • This is obtained, in a simple manner, by using two pulleys (11-12) having different diameters, the pulley (12) being in this case half the size of the pulley (11).
  • the removal is carried out as follows.
  • the deposition process will be described for the distribution of a single weft thread, the invention however being applicable in the case where it is desired to distribute a plurality of threads one after the other.
  • the wire is deposited at the front of the pin P1. Due to the continuous advance of the belts (3-4) and the rotation of the distributor element 1, when this element arrives at point B (see Figure 3), the wire (2) is then deposited behind the pin P4.
  • the wire therefore surrounds four pins at each passage of the distribution element.
  • the wire is distributed on the pulley (12) around only two pins taking into account the fact that this pulley (12) has a diameter twice as small as the pulley (11).
  • the removal is carried out on the side of the pulley (12) first behind the pin P4 then in front of the picol P3
  • the thread is deposited in front of the needle P3 then, at point B, at the rear of the pin P6 and, on the side of the pulley (12) first of all at the rear of the pin P6 then at the front of the pin P5.
  • a weft web is obtained having the texture illustrated in FIG. 5.
  • the pins P are irregularly spaced from one another, as shown in FIG. 6.
  • the spacing E1 between the pin P1 and the pin P2 is equal to the desired distance D between two frames reduced by once the thickness d of the pins, while between the pin P2 and the pin P3, the distance E2 between each pin is equal to the desired distance D between two frames increased by one time the thickness of said pins. It is easily understood that thanks to such a distribution, a strictly constant spacing is obtained between each of the frames.
  • FIG. 7 is the representation of a weft ply obtained in accordance with the invention by distributing eight weft yarns. In such a case, the eight wires are distributed regularly over 180 ° of revolution.
  • the pins will be, at regular intervals, more or less spaced by a distance equal to the thickness of a spike depending on whether two consecutive wefts are arranged in opposite directions.
  • FIG. 7 explains by itself the way in which a weft ply obtained in accordance with the invention is made up by the distribution of eight elementary wires.
  • the proportions have not been respected, the central part being greatly reduced and the lateral parts being, on the contrary, enlarged to better show how the different wires are positioned one relative to the other.
  • FIG. 8 illustrates a complete installation, seen from the side, making it possible to continuously manufacture non-woven textile grids, the weft ply formed being associated with warp plies.
  • Such an installation comprises, upstream of the distribution means (1) of tramp wires (not shown), an assembly for the storage of food reels.
  • This assembly is constituted, for example, by an assembly rotating in synchronism with distribution means (1), conventional assembly which will not be described in detail and which supports the food reels (not shown for simplification) -
  • the means do distribution (1) deposit the weft threads on lateral elements of positioning, advancing and holding wires of the type described above and which are illustrated in FIG. 1. After removing the weft threads, two layers of warp (22-23), an upper one (22), the another lower (23) are brought on either side of the weft web formed.
  • the assembly passes through a gluing system (24) so that a binding material is deposited on the warp and weft threads.
  • the grid formed then passes over a drying drum (25) and then over return elements to be returned at (26).
  • the drum dryer (25) is preferably arranged above the conveyor elements. This allows, as shown schematically in Figure 9, to obtain an automatic and easy escape from the ends of the frame loops. Indeed, due to the presence of the lower warp ply (23), the weft threads are raised when the grid surrounds the drum (25) and the lateral belts (3) and (4) are twisted, which allows the exhaust of the ends.
  • such an embodiment is not limiting and other means making it possible to cause the ends of the weft threads to escape.
  • selvedge threads could possibly be incorporated into the invention of weft loops. It could also be considered to cut the ends.
  • Such an installation can be used not only to make non-woven textile grids, but could be associated with paper machines, knitting looms ...

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nonwoven Fabrics (AREA)
  • Looms (AREA)
  • Woven Fabrics (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Paper (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Knitting Machines (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP82420178A 1981-12-23 1982-12-14 Dispositif pour la réalisation d'une nappe constituée de fils parallèles et procédé pour la formation d'articles complexes divers comportant une telle nappe Expired EP0082794B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82420178T ATE13916T1 (de) 1981-12-23 1982-12-14 Vorrichtung zur herstellung eines aus parallelen faeden gebildeten vlieses und verfahren zur herstellung von verschiedenen zusammengesetzten, ein solches vlies enthaltenden produkten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8124347 1981-12-23
FR8124347A FR2518595A1 (fr) 1981-12-23 1981-12-23 Dispositif pour la realisation d'une nappe constituee de fils paralleles et d'articles complexes divers comportant une telle nappe

Publications (2)

Publication Number Publication Date
EP0082794A1 EP0082794A1 (fr) 1983-06-29
EP0082794B1 true EP0082794B1 (fr) 1985-06-19

Family

ID=9265449

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82420178A Expired EP0082794B1 (fr) 1981-12-23 1982-12-14 Dispositif pour la réalisation d'une nappe constituée de fils parallèles et procédé pour la formation d'articles complexes divers comportant une telle nappe

Country Status (9)

Country Link
US (1) US4472234A (es)
EP (1) EP0082794B1 (es)
JP (1) JPS58120851A (es)
AT (1) ATE13916T1 (es)
CA (1) CA1194282A (es)
DE (1) DE3264335D1 (es)
ES (1) ES518449A0 (es)
FR (1) FR2518595A1 (es)
IE (1) IE53749B1 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2602221B2 (ja) * 1986-06-30 1997-04-23 ト−ヨ−衛材株式会社 シート幅方向に糸状又は帯状弾性体を伸張添着する方法
US7169246B2 (en) * 2001-06-28 2007-01-30 Liba Maschinefabrik Gmbh Process and device for the placement and fixing of a sheet of filaments for the production of scrims
FR3023303B1 (fr) * 2014-07-02 2019-04-26 Porcher Industries Procede de fabrication de grille textile et installation et materiels y relatifs

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL284252A (es) * 1961-10-12
FR1367567A (fr) * 1962-06-26 1964-07-24 Glanzstoff Ag Dispositif pour la confection d'une toile textile à larges mailles en fils croisés
US3340584A (en) * 1965-06-17 1967-09-12 Johnson & Johnson Apparatus for cross-laying fibrous material
DE1635691A1 (de) * 1966-07-14 1971-03-11 Glanzstoff Ag Verfahren zur Herstellung von mit weitmaschigen textilen Flaechengebilden aus sich kreuzenden Faeden verstaerkten Materialbahnen
CH480944A (de) * 1967-04-22 1969-11-15 Schuller Gmbh Glaswerk Verfahren und Vorrichtung zur Erzeugung eines aus Längs- und Querfäden bestehenden Geleges, insbesondere zur Erhöhung der Zugfestigkeit von Matten und Vliesen aus Glasstapelfasern
US3675285A (en) * 1967-07-10 1972-07-11 Union Carbide Corp Apparatus for changing mesh size of non-woven netting
SU487487A3 (ru) * 1969-03-13 1975-10-05 В.Шлафгорст Унд Ко (Фирма) Устройство дл прокладывани уточных нитей на основов зальной машине
US3756893A (en) * 1969-04-03 1973-09-04 Owens Corning Fiberglass Corp Nonwoven structure and method and apparatus for producing it
NL7009948A (es) * 1970-07-06 1972-01-10 Textiel Unie
FR2270185A1 (en) * 1974-05-10 1975-12-05 Socerem Conceptions Const Meca Weft-forming mechanism - for adhesive bonded mesh structures
US3953989A (en) * 1974-08-21 1976-05-04 Veb Wirkmaschinenbau Method and apparatus for warp knitting and resultant product
US4068357A (en) * 1976-12-27 1978-01-17 Mcdonnell Douglas Corporation Method and apparatus for fabricating open weave scrim cloth
FR2419991A1 (fr) * 1978-03-14 1979-10-12 Pelletier Jacques Dispositif de formation d'une nappe de fils paralleles

Also Published As

Publication number Publication date
ES8401542A1 (es) 1983-12-16
ES518449A0 (es) 1983-12-16
DE3264335D1 (en) 1985-07-25
FR2518595A1 (fr) 1983-06-24
JPS58120851A (ja) 1983-07-18
IE822996L (en) 1983-06-23
CA1194282A (fr) 1985-10-01
US4472234A (en) 1984-09-18
ATE13916T1 (de) 1985-07-15
FR2518595B1 (es) 1984-01-27
IE53749B1 (en) 1989-02-01
EP0082794A1 (fr) 1983-06-29

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