EP0379478B1 - Procede et dispositif de production de tissus d'armure a fils de trame diagonaux - Google Patents

Procede et dispositif de production de tissus d'armure a fils de trame diagonaux Download PDF

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Publication number
EP0379478B1
EP0379478B1 EP19880901573 EP88901573A EP0379478B1 EP 0379478 B1 EP0379478 B1 EP 0379478B1 EP 19880901573 EP19880901573 EP 19880901573 EP 88901573 A EP88901573 A EP 88901573A EP 0379478 B1 EP0379478 B1 EP 0379478B1
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EP
European Patent Office
Prior art keywords
process according
fabric
roll
weft threads
fabrics
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
EP19880901573
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German (de)
English (en)
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EP0379478A1 (fr
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.)
TEXBAU KIRCHNER GMBH
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TEXBAU KIRCHNER GmbH
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Publication of EP0379478A1 publication Critical patent/EP0379478A1/fr
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Anticipated expiration legal-status Critical
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D9/00—Open-work fabrics
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • D03D13/002—With diagonal warps or wefts
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D41/00—Looms not otherwise provided for, e.g. for weaving chenille yarn; Details peculiar to these looms

Definitions

  • the invention relates to a method and an apparatus for producing reinforcing fabrics with diagonal weft threads by obliquely warping two or more conventional fabric sheets with a right-angled arrangement of warp and weft threads and connecting these fabric sheets in such a way that the inclined weft threads cross.
  • Reinforcement fabrics are increasingly required in modern technology as tensile stabilizing inserts in plastic materials and also for diagonal reinforcement of high tensile textile formwork.
  • tensile strength in all directions is important in most cases, which is only possible to a limited extent with the stabilizing materials available so far, such as fabrics, fleeces, etc.
  • Conventional fabrics for example, have to be installed in multiple layers in the plastic materials to be reinforced in alternating installation directions in order to ensure tensile strength in all directions.
  • the stabilizing fabrics are responsible for the right-angled and therefore easily displaceable arrangement of warp and weft threads.
  • Nonwovens offer reinforcement Reinforcement options with tensile strengths in all directions, however, due to their random structure, have a much higher constructional stretch than fabric.
  • the object of the invention is to provide a method of the type mentioned at the beginning with which very stable and reliable fabric arrangements can be created which can also be used for the mentioned reinforcement purposes for applications with very high tensile forces.
  • the solution according to the invention consists in that the right-angled arrangement of warp and weft threads is warped in a rolling process by obliquely pulling off a deflecting roller, which is oriented essentially perpendicular to the direction of the original path, to an oblique-angled thread construction.
  • the fabric web thus produced is then connected to a second fabric web likewise produced, in which, however, the weft threads are distorted in the opposite direction, so that the inclined weft threads cross and form a triangular arrangement with the longitudinal warp threads.
  • Both fabric webs can be done in the same way with the same device prefabricated and then joined with crossing weft threads after one of the two webs has been pivoted in the longitudinal direction by 180 o .
  • the draft angle is advantageously about 15 o to 45 o . At larger angles, it becomes very difficult to pull the tissue so much. At smaller angles, the deviation from the right angle is not large enough so that the effect of the diagonal reinforcement or reinforcement wears off. Particularly advantageous but draft angles have proved o of about 30, since in this case yarn arrays of warp and weft threads in the form of equilateral triangles are obtained which make the reinforcement mesh same tensile strength in all directions.
  • the deflecting roller is provided with a helical surface structure which exerts an axial force component on the fabric opposite the pull-off direction.
  • the deflecting roller structured in this way can furthermore be provided with an adhesive coating in order to additionally prevent the fabric from slipping sideways on this deflecting roller.
  • two parallel deflecting rollers touching used in which the web is in each case deflected around o 180th the fabric web leaves the take-off device in the same direction in which it entered the take-off device. Since this prevents the direction of movement from being reversed, this method can be used particularly advantageously in production lines.
  • the first deflecting roller in the working direction is expediently provided with an adhesive coating, so that the fabric cannot slip here.
  • the second deflecting roller has a very smooth surface, so that slipping and desired warping take place particularly easily here.
  • more than two fabric sheets can also be connected to one another.
  • the best way to connect the fabric webs is by gluing.
  • the advantage here is that, due to the relatively open fabric structure, the adhesive can easily pass through several layers of fabric webs lying one on top of the other. Polyester and glass fiber have proven to be a particularly advantageous material for the reinforcement fabrics.
  • the reinforcement fabric is provided with a coating after the warped fabric webs have been connected, it is not only possible to obtain particularly good reinforcement or reinforcement for other fabrics. Rather, the product consisting of coating and reinforcement can be used directly since it is very stable. This is due to the fact that the coating can easily get into the relatively large spaces between the threads and at the same time additionally connects these threads to one another.
  • a waterproof coating is particularly useful. In this way, waterproof tarpaulins or sheets are obtained which are effectively reinforced with diagonal reinforcement. Coatings made of PVC or rubber are particularly cheap. In all cases, flexible but highly tensile sheets are obtained, which are reinforced in a simple and very effective way.
  • the textile web can be warped via a single roller, which is provided with an adhesive coating or a helically profiled coating.
  • two rollers can be used, of which the the first is provided with an adhesive coating, while the second is very smooth.
  • a composite roller is now used which has elongated elements which are arranged on a cylinder jacket and can be displaced in the cylinder axis direction and which are connected in particular to the roller hub via gimbal-movable spokes.
  • the corresponding elongated elements move with increasing distortion of the material in the cylinder direction and thus follow the tissue, so that the tissue on these parts no longer slides when it is distorted, but is guided, whereby a particularly trouble-free distortion is made possible.
  • the elongated elements could be freely movable so that they follow the direction of warping. However, it is more advantageous to control this movement by providing a control for displacing the elongate elements in the direction of the cylinder axis as a function of the roll rotation.
  • the deflection roller is provided at its ends with shaft ends which are inclined to the cylinder axis, the shaft axes of which are parallel and which have spoke-shaped holding elements which are rotatable about axes perpendicular to the shaft axis and to which the elongate elements are fastened such that between the elongate ones Elements and the associated holding elements a pivoting movement about an axis is possible, which is perpendicular to the shaft axis and to the axis of rotation between the holding element and shaft axis.
  • additional support for the elongated elements can be provided for the deflecting roller to have slanted disks between the shaft ends, with which the elongated elements are connected in this way are, as is the case for the connection of the elongated elements with the shaft ends.
  • a supply roll I for a relatively open and easily displaceable fabric 2 with a chain 3 and wefts 4 is shown.
  • the supply roll 1 is held in a storage and braking device 5, by means of which the take-off speed and pull-off force can be regulated.
  • a deflection roller mounted at 7 is shown, which is provided with helical threads 8.
  • the deflection roller 6 is arranged parallel to the supply roll 1 and perpendicular to the warp threads 3.
  • a winding roller 10 mounted and driven at 9 is arranged obliquely to the deflection roller 6. By means of this take-up roll 10, the fabric is drawn off obliquely from the deflecting roller 6, so that warp and weft threads are no longer at right angles to one another.
  • Fig. 2 shows the arrangement of Fig. 1 in side view, the direction of rotation of the individual rollers and rollers is indicated by arrows.
  • FIG. 3 shows two fabric webs 2 produced on take-up rolls 10, one of which is arranged above the other and one of which has been rotated by 180 ° about the direction of the longitudinal extent of the spread fabric web. These fabric sheets are then placed on top of one another and glued, the adhesive being able to flow easily through the relatively open fabric and being able to connect the two fabrics to one another.
  • Fig. 6 it is illustrated that in the method of Fig. 5, half of the fabric web 2 is folded over practically in the direction of the arrows 21 about a transverse axis 22 by 180 o , so that the triangular shape of the threads is obtained, which in the lower part is shown, while in the upper part of the figure the original web is shown with obliquely distorted weft threads.
  • two deflection rollers 6 and 23 are provided, which are arranged in parallel and touch.
  • the first deflection roller 6 in the working direction is provided with an adhesive coating, while the second deflection roller 23 has a smooth surface.
  • the fabric web 2 is still held in its original undistorted shape by the deflection roller 6; the warping takes place only on the roller 23, where it can take place particularly easily and effectively because of the smooth surface thereof.
  • connection is made with adhesive, which is arranged in an adhesive bath 17. There is a roller 16 which is wetted by the adhesive and one of the webs coated with adhesive.
  • connection is expediently made, as already mentioned, by gluing, on the one hand pasty or liquid adhesives such as polyvinyl chloride, polyvinyl acetate, rubber, bitumen and the like can be used.
  • adhesives such as polyvinyl chloride, polyvinyl acetate, rubber, bitumen and the like can be used.
  • the transition to welding processes is fluent, for example if Polyester fabric sheets can be glued with polyester.
  • powdery adhesive application with e.g. Polyester, polyamide, polyethylene is possible.
  • These adhesives which then act as a welding agent, are sprinkled on the sides of the fabric to be bonded and activated by heat before the fabrics are joined together.
  • the arrangement of Fig. 12 can be reversed. While in the arrangement shown in FIG. 12 the adhesive is applied from below through the roller 16 and thus passes between the two fabric webs 2 and 2 ', the fabric webs would have to be pulled down so that the powdery adhesive is applied to the top of a fabric web could.
  • the adhesive bonding can also be carried out using hot-melt adhesives which are introduced in the form of nonwovens between the two material webs at the point at which they unite, ie in the embodiment of FIG. 4 between the rollers 29 and 30, which are then designed as heating rollers .
  • Another tissue could also be used here, possibly not warped fabric is inserted between the two warped fabrics to further reinforce the multi-layer fabric produced.
  • the deflection roller 40 is not a closed structure, but is essentially constructed from elongated, approximately bar-shaped elements 41 which are arranged on a cylinder jacket and which, in the embodiment shown, are hollow to save weight. On their surface the elongated elements 41 carry an adhesive coating e.g. in the form of rubber. The fabric web 2 to be warped rests only on the rubber elements 42.
  • the elongated elements 41 shift during the rotational movement of the deflection roller 40, as will now be described in connection with FIGS. 14 and 15.
  • the elongated elements 41 are fastened to the holding elements 47 so as to be pivotable about axes 48, which are perpendicular to the shaft axis 43 and perpendicular stand to the axis 46, so that a gimbal attachment of the elongated elements 41 is obtained.
  • support elements 49 can also be provided between the two outer hub elements 45, which are gimbally connected to the elongate elements 41, as is the case with the elements 45. These elements 49 can either be arranged freely between the elongated elements 41 or can be supported by fastening them on the roller axis 44 in such a way that they maintain their inclined position in space, but can also rotate with the deflecting roller 40.
  • the elongated elements 41 carry out a complete to-and-fro movement with each rotation of the deflection roller 40 and thereby cause an extremely tissue-friendly warping of displaceable tissues in positive guidance.
  • the lateral fabric distortion takes place in the non-supporting spaces between the individual support surfaces 42, so that irregular warping due to irregular slipping on the roller can no longer occur.
  • roller 40 is still shown in a side view, in such a way that the roller axis 44 is in the plane of the drawing.
  • the shaft axis 43 is arranged obliquely to the plane of the drawing.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Woven Fabrics (AREA)

Abstract

Selon un procédé de production de tissus d'armure à fils de trame agencés par rapport aux fils de chaîne de façon à former des triangles entre les deux, on produit des tissus qui sont également résistants à la traction dans tous les sens. Les tissus d'armure se composent de deux ou de plusieurs tissus classiques (2) dont l'agencement en angle droit des fils de chaîne et des fils de trame est obliquement étiré pendant le cylindrage de façon à former une construction de fils à angle oblique, les fils étant alors reliés les uns aux autres sous cette forme obliquement étirée.

Claims (22)

  1. Procédé de fabrication de tissus d'armature à fils de trame diagonaux par déformation oblique de deux ou de plusieurs bandes de tissu classique dont les fils de chaîne et de trame sont disposés à angle droit, et par assemblage de ces bandes de tissu de telle sorte que les fils de trame dirigés obliquement se croisent, caractérisé en ce que la disposition à angle droit des fils de chaîne et de trame est déformée en un tracé des fils à angle oblique, au cours du passage sur des cylindres, par traction oblique depuis un cylindre de renvoi qui est orienté dans une direction essentiellement perpendiculaire à celle de la bande initiale.
  2. Procédé selon la revendication 1, caractérisé en ce que deux ou plusieurs bandes de tissu déformées dans différentes directions sont assemblées entre elles.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que les angles de déformation des deux bandes sont choisis de même grandeur.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les angles de déformation mesurent environ 15° à 45°.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les angles de déformation mesurent environ 30°C.
  6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que deux bandes de tissu déformées, obtenues à l'aide du même dispositif de traction, sont assemblées l'une à l'autre, l'une d'entre elles étant tournée de 180° autour de son axe longitudinal.
  7. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'après son enroulement sur un rouleau récepteur, la bande de tissu, obtenue à l'aide d'un dispositif de traction, est déroulée à peu près sur la moitié de ce rouleau et enroulée en sens opposé sur un second rouleau récepteur parallèle, et en ce qu'en commençant par le morceau de tissu qui se trouve entre les deux rouleaux récepteurs, les bandes de tissus sont extraites des deux rouleaux récepteurs et assemblées entre elles.
  8. Procédé selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'on utilise un cylindre de renvoi dont la surface présente une structure hélicoïdale.
  9. Procédé selon l'une quelconque des revendications 1 à 8, caractérisé en ce qu'on utilise un cylindre de renvoi comportant un revêtement qui empêche un glissement de la bande de tissu.
  10. Procédé selon la revendication 9, caractérisé en ce qu'on utilise un second rouleau de renvoi à surface lisse en contact avec le premier.
  11. Procédé selon l'une quelconque des revendications 1 à 5 et 6 à 10, caractérisé en ce que deux bandes de tissu sont déformées dans deux dispositifs de traction, de façon continue mais dans des directions de déformation différentes, puis elles sont assemblées entre elles.
  12. Procédé selon l'une quelconque des revendications 1 à 11, caractérisé en ce que les bandes de tissu sont collées l'une à l'autre.
  13. Procédé selon l'une quelconque des revendications 1 à 12, caractérisé en ce qu'on utilise des tissus de polyester et d'autres matières plastiques à haute résistance à la traction.
  14. Procédé selon l'une quelconque des revendications 1 à 12, caractérisé en ce qu'on utilise des tissus de fibres de verre.
  15. Procédé selon l'une quelconque des revendications 1 à 14, caractérisé en ce qu'après l'assemblage des bandes de tissu déformées, le tissu d'armature est muni d'une couche de revêtement.
  16. Procédé selon la revendication 15, caractérisé en ce qu'une couche de revêtement imperméable à l'eau est appliquée.
  17. Procédé selon la revendication 15 ou 16, caractérisé en ce qu'une couche de revêtement en PCV est appliquée.
  18. Procédé selon la revendication 15 ou 16, caractérisé en ce qu'une couche de revêtement en caoutchouc est appliquée.
  19. Cylindre de renvoi pour la fabrication de tissus d'armature à fils de trame diagonaux, caractérisé en ce qu'il comporte des éléments oblongs (41) disposés sur une surface latérale de cylindre et mobiles dans la direction de l'axe (44) du cylindre, éléments sur les surfaces portantes (42) desquels s'applique la bande de tissu à déformer (2).
  20. Cylindre de renvoi selon la revendication 19, caractérisé en ce qu'une commande automatique (43-48) est prévue pour le déplacement des éléments oblongs (41) dans la direction de l'axe (44) du cylindre, en fonction de la rotation du cylindre.
  21. Cylindre de renvoi selon la revendication 20, caractérisé en ce qu'il est muni, à ses extrémités, de bouts d'arbre (45) qui se dressent obliquement par rapport à l'axe (44) du cylindre, les axes (43) de leurs arbres étant parallèles et non coaxiaux avec l'axe (44) du cylindre et ces bouts d'arbre présentant des éléments de maintien (47) en forme de rayons qui peuvent tourner autour d'axes (46) perpendiculaires à l'axe (43) de l'arbre et auxquels les éléments oblongs (41) sont fixés de telle manière qu'entre les éléments oblongs (41) et les éléments de maintien (46) raccordés à ceux-ci, un mouvement pivotant soit possible autour d'un axe (48) qui est perpendiculaire à l'axe (43) de l'arbre et à l'axe de rotation (46) entre l'élément de maintien et le bout d'arbre (45).
  22. Cylindre de renvoi selon la revendication 21, caractérisé en ce qu'il présente des disques (49) qui se dressent obliquement entre les bouts d'arbre (45) et auxquels des éléments oblongs (41) sont raccordés de la même manière que le raccordement des éléments oblongs (41) aux bouts d'arbre (45).
EP19880901573 1987-08-10 1988-01-20 Procede et dispositif de production de tissus d'armure a fils de trame diagonaux Expired - Lifetime EP0379478B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3726556 1987-08-10
DE3726556 1987-08-10

Publications (2)

Publication Number Publication Date
EP0379478A1 EP0379478A1 (fr) 1990-08-01
EP0379478B1 true EP0379478B1 (fr) 1993-04-07

Family

ID=6333440

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880901573 Expired - Lifetime EP0379478B1 (fr) 1987-08-10 1988-01-20 Procede et dispositif de production de tissus d'armure a fils de trame diagonaux

Country Status (4)

Country Link
EP (1) EP0379478B1 (fr)
JP (1) JPH03502117A (fr)
DE (1) DE3880147D1 (fr)
WO (1) WO1989001405A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013003641A1 (de) * 2013-03-05 2014-09-11 Lohmann Gmbh & Co. Kg Winkelgewebe, dessen Herstellung und Verwendung

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4027113A1 (de) * 1990-08-28 1992-03-05 Uniroyal Englebert Gmbh Verfahren zum herstellen eines reifencordes
FR2791365B1 (fr) 1999-03-22 2001-06-22 Hexcel Fabrics Tissu en biais, procede de fabrication et metier a tisser pour la fabrication en continu d'un tel tissu
GB0205498D0 (en) 2002-03-08 2002-04-24 Structural Polymer Systems Ltd Moulding material
ES2251326B1 (es) * 2005-10-14 2007-06-16 Roger Franck A. Desmond Capeyron Tejido elastico.
CZ2015634A3 (cs) * 2015-09-17 2017-03-08 VĂšTS, a.s. Způsob vytváření tkaniny a zařízení k jeho provádění
DE102017126627A1 (de) * 2017-11-13 2019-05-16 Cordier Spezialpapier Gmbh Schleifmittel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4055697A (en) * 1975-05-19 1977-10-25 Fiberite Corporation Woven material with filling threads at angles other than right angles
US4268561A (en) * 1978-03-20 1981-05-19 Thompson James D Means and method of manufacturing a high strength bar
DE3042569C2 (de) * 1980-11-12 1985-08-08 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Versteifungsgewebe in Bahnform zur Herstellung von langgestreckten Bauteilen
US4622254A (en) * 1981-08-31 1986-11-11 Toray Industries, Inc. Fiber material for reinforcing plastics
US4887656A (en) * 1986-06-20 1989-12-19 Germain Verbauwhede Woven fabric with bias weft and tire reinforced by same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013003641A1 (de) * 2013-03-05 2014-09-11 Lohmann Gmbh & Co. Kg Winkelgewebe, dessen Herstellung und Verwendung

Also Published As

Publication number Publication date
DE3880147D1 (de) 1993-05-13
EP0379478A1 (fr) 1990-08-01
JPH03502117A (ja) 1991-05-16
WO1989001405A1 (fr) 1989-02-23

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