EP2260133B1 - Procédé de tissage et métier à tisser pour la mise en oeuvre de ce procédé - Google Patents

Procédé de tissage et métier à tisser pour la mise en oeuvre de ce procédé Download PDF

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Publication number
EP2260133B1
EP2260133B1 EP09705577.6A EP09705577A EP2260133B1 EP 2260133 B1 EP2260133 B1 EP 2260133B1 EP 09705577 A EP09705577 A EP 09705577A EP 2260133 B1 EP2260133 B1 EP 2260133B1
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EP
European Patent Office
Prior art keywords
laps
weaving
binding thread
pulled
binding
Prior art date
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Active
Application number
EP09705577.6A
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German (de)
English (en)
French (fr)
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EP2260133A1 (fr
Inventor
Georges-Paul Deschamps
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.)
Deschamps SARL
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Deschamps SARL
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Publication of EP2260133A1 publication Critical patent/EP2260133A1/fr
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    • 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
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D11/00—Double or multi-ply fabrics not otherwise provided for
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D25/00—Woven fabrics not otherwise provided for
    • D03D25/005—Three-dimensional woven fabrics
    • 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
    • D03D41/004—Looms for three-dimensional fabrics
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/22—Temples
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3179—Woven fabric is characterized by a particular or differential weave other than fabric in which the strand denier or warp/weft pick count is specified
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3179—Woven fabric is characterized by a particular or differential weave other than fabric in which the strand denier or warp/weft pick count is specified
    • Y10T442/3187—Triaxially woven fabric

Definitions

  • the present invention relates to a weaving process and a loom for carrying out this method. It relates more particularly to a method of weaving a flexible container.
  • Aircraft lift airbags are known to facilitate the desmiling and recovery of commercial and military aircraft accidentally exited the runway.
  • the Figure 1 is a sectional view of an aircraft lifting cushion of the prior art.
  • This cushion typically comprises two walls 1, 2 woven coated for sealing and vulcanized hot. These woven walls 1, 2 are connected on their periphery by a thickening 3 of rubber.
  • These son 4 are of identical length so as to maintain the walls 1, 2 parallel. This ensures the application of a uniform lifting pressure on the structure of the aircraft under which the cushion is placed.
  • This last point is particularly critical, for example, when lifting fragile elements such as an aircraft wing 5, to avoid the appearance of structural damage ( Fig. 2 ).
  • woven articles having a complex shape such as poufs filled with polystyrene beads, chair covers, etc., result from the assembly of initially separate textile pieces which are then joined, for example, by sewing to confer its definitive form to the article.
  • Premature wear of the article at these areas may result for example in the loss of the filling material of the article.
  • Document is also known US 5,783,279 an apparatus for producing a fiber preform of the kind which comprises at least one flange and at least one web woven integrally with the flange or flanges, wherein said web or web contains a plurality of threads which extend along the zigzag web repeatedly from one flange to the free edge of the web, or to another flange, each of said wires extending between flange wires so as to be interlocked with those flanges; this.
  • the object of the present invention is therefore to propose a weaving process and a weaving machine for implementing this simple method in their design and their procedure for manufacturing a woven piece in one piece thus conferring on them mechanical properties superior to known articles of the prior art obtained by assembling elements initially separated by sewing, gluing, ... or by a combination of these methods of assembly.
  • Another object of the invention is a method of weaving an integral woven structure having a complex shape such as a conical or cylindrical shape for the production of composite parts such as radomes, fuselage sections, aircraft, ship hulls or indoor or outdoor furniture.
  • the invention relates to a method of weaving at least two sheets interconnected by at least one binding yarn.
  • the method of the invention makes it possible to manufacture woven structures comprising at least two woven walls connected to one another by at least one non-attached binding thread.
  • This woven structure can be closed or at least partially open. This opening may be placed at any point of the woven structure, that is to say at least at one of its ends, the corresponding edges of these walls not then being interconnected or resulting from the presence of an orifice on at least one of the walls.
  • the section of this woven structure may advantageously have any shape such as a circular, square, rectangular, rhombus, T, U, L, H, I, ... shape after possible cutting. unnecessary warp threads.
  • Unwired binding thread is understood to mean that this thread is not brought back after weaving each of these walls for the assembly of these but on the contrary, it is inserted into the weft of these woven walls as and when they are manufactured.
  • the binding yarn is therefore an integral part of the weave of the two walls on portions thereof.
  • the woven structure thus obtained is in one piece which gives it an increased mechanical resistance to stress.
  • This woven structure can either be in one piece or on the contrary be made of different materials.
  • the warp or weft threads used may, however, be of a different shape, that is to say be monofilament yarn, multi-filament yarn, flat yarn, twisted-fiber yarn, yarn single or rotor, for example, and have different thicknesses or diameters.
  • These yarns may, for example, be cotton yarns, polyester yarns, polyamide yarns, polypropylene yarns, polyethylene yarns, biodegradable starch-based plastic materials, oxodegradable plastics materials, yarns made of carbon, graphite, glass, silica, aramid, ...
  • the walls may furthermore have different dimensions and / or different shapes depending on the application envisaged for the woven structure.
  • the binding threads may advantageously be made of different materials in the weft direction of the woven structure so that this structure has different areas of mechanical strength.
  • temple a rod that can pass under the son of binding so as to ensure the draw thereof.
  • said at least one binder yarn is pulled from the upper and intermediate walls with a first gripping member by placing at least a portion of the length pulled above the upper sheet and pulling said at least one binder yarn from the lower and intermediate walls with a second gripping member by placing at least a portion of the drawn length below the lower ply.
  • said at least one binding yarn and the constituent yarns of these plies are pre-impregnated prior to the beginning of the weaving operations.
  • these yarns may be pre-impregnated with a thermosetting or thermoplastic resin, and in particular a thermostable thermoplastic resin such as that of the families of polyetherimides (PEI), polyetheretherketones (PEEK) or polyamides (PA).
  • a thermosetting or thermoplastic resin such as that of the families of polyetherimides (PEI), polyetheretherketones (PEEK) or polyamides (PA).
  • PEI polyetherimides
  • PEEK polyetheretherketones
  • PA polyamides
  • the invention also relates to a loom comprising a weaving zone in which are introduced into at least one upper track and one lower track of the weft son, each of these weft son being introduced between at least two warp son by least one weft insertion element, first means for carrying on one of these channels and determining the position of the warp yarns with respect to the weft yarn and second means for introducing at least one binding yarn above , between and below these pathways.
  • this loom comprises at least one gripping element of said at least one binding yarn and means for moving said at least one gripping element out of and into the weaving zone to place said at least one element gripping means in contact with said at least one binding yarn and allowing drawing of said at least one binding yarn.
  • Said at least one gripping element can be a temple.
  • the edge of this temple intended to receive said at least one binding yarn comprises means for retaining these binding yarns to prevent the yarns from slipping when they are pulled.
  • At least the edge of the temple intended to receive said at least one binding yarn has a shape serving as impression of the relief to give to one of these sheets in line with said at least one binding yarn.
  • Said at least one gripping element may also be a needle having at its end a hook for receiving a binding thread.
  • the loom therefore has as much needle as tying wire to pull.
  • the means for moving each needle comprise, for example, an electromagnet or a hydraulic or pneumatic piston. The movement of these needles is controlled by control means.
  • control means are individual control means of each needle so as to vary the length drawn from one binding thread to another. Each needle is then mobile in translation.
  • this loom is a dry loom, such as a jet loom, a loom (s) or a projectile loom (s).
  • the invention also relates to the use of at least one woven structure obtained by the method or the loom as described above for producing composite parts, in which said at least one woven structure is placed in a mold, and closed. said mold, a matrix material is introduced into said mold and then the assembly thus obtained is hardened.
  • the invention also relates to a composite part comprising a preform obtained by the method or by means of a loom as described above, this preform being embedded in a matrix material.
  • These composite parts are, for example, structural panels for example for vehicles such as aircraft or automobiles. It can still be furniture.
  • the matrix material used is, for example, a thermosetting or thermoplastic resin, and in particular a heat-stable thermoplastic resin such as that of the families of polyetherimides (PEI), polyetheretherketones (PEEK) or polyamides (PA).
  • PEI polyetherimides
  • PEEK polyetheretherketones
  • PA polyamides
  • the Figure 3 is a top view of a bladder according to a preferred embodiment of the invention.
  • This flexible reservoir consists of a woven structure comprising two woven walls 10, 11 which are connected to one another by unreported tying son. These walls have been woven in a circular fashion, which gives the container increased mechanical strength since the yarns at each end of the woven structure have not been cut. These two walls 10, 11 are continuous and have several parts going from an edge of the tank towards its center.
  • first part 12 woven flat.
  • This first part 12 forms the edge of the tank.
  • This edge corresponds to the assembly of the two woven walls and delimits the edge of the tank.
  • This edge 12 can receive accessories such as eyelets, ... and stretch the flexible container.
  • the width of this first portion is about 15 cm.
  • a second portion 13 called rounded to give a rounded shape on the contour of the flexible container after filling thereof with a gaseous fluid such as air or with particles such as sand, polystyrene beads, ...
  • this second part 13 makes it possible to size the inflation height of the flexible reservoir.
  • the container is sealed after weaving the woven structure giving the shape of the reservoir by a step of coating this structure with a sealing material such as a material based on polyvinyl chloride (PVC) or polyurethane and further better a material based on flame retarded plasticized PVC.
  • a sealing material such as a material based on polyvinyl chloride (PVC) or polyurethane and further better a material based on flame retarded plasticized PVC.
  • the plies 11, 12 are separated by being connected to one another by the binding yarns introduced in such a way that alternative in the basic armor of the upper and lower plies.
  • These two walls 11, 12 have a lining 1 to 1 with a number of warp son greater than 10 son / cm and a number of weft son greater than 6 son / cm so as to ensure good sealing of the woven structure .
  • these armor may not be identical.
  • This zone where the plies 10, 11 are connected to one another by the unreported binding yarns constitutes the central portion 14 of the bladder.
  • handles 15 are placed to separate the two plies 10, 11 to return the lengths drawn from the binding son in the assembly formed by these two sheets interconnected.
  • the warp threads of this woven structure are 2354 Dtex multi-filament polyester yarns for the envelope, that is to say the selvedge 12 and second part 13 and the central part 14 and the handles 15.
  • the binder yarns 16 which are here additional warp yarns, 2 x 235 Dtex multi filament polyester yarns are used with 215 S turns.
  • the binder yarn density is typically between one yarn / 10 cm 2 and several hundred threads / cm 2 .
  • the weft yarns are 2354 Dtex multi-filament polyester yarns.
  • the binding yarns are chosen from the group comprising monofilament yarns, multi-filament yarns, single or rotor yarn, yarns comprising agglomerated fibers, flat yarns, flexible metal yarns, sheathed yarns, that is to say each comprising a core wire and a sheath made of thermoplastic material, and combinations of these elements.
  • flat wire means an extruded product through a die, drawn or otherwise whose solid and substantially constant cross section over its entire length is in the shape of an oval, a square, a rectangle, a flattened circle and square or modified rectangle, that is to say having two opposite sides having a convex arc shape, the other two being rectilinear, equal and parallel.
  • These flat wires may still be hollow and have, for illustrative purposes, a flattened tubular section.
  • the warp, weft and binding yarns may, for example, be cotton yarns, polyester yarns, polyamide yarns, polypropylene yarns, polyethylene yarns, biodegradable starch-based plastic materials, plastics materials. oxodegradable, yarns formed of carbon fibers, graphite, glass, silica, aramid, ...
  • the woven structure giving the shape of the reservoir was obtained according to the manufacturing method described below ( Figure 4 ).
  • This length thus drawn from the binding yarns as well as the distance separating the upper and lower plies 10 corresponds to the distance separating the walls of the final reservoir, that is to say its thickness in service.
  • the temple is removed from the weaving zone and the manufacture of the woven walls 10, 11 is normally resumed until the next binding of the walls by these binding threads 16.
  • binding yarns 16 are thus pulled on the top of the two plies forming the upper and lower walls of the woven structure and the lengths thus drawn are thus placed partly outside the woven structure by forming loops 17.
  • the temple can move below the assembly formed by these webs linked together so that these loops 17 are placed partly below this set.
  • binding son 16 are then returned to the woven structure by separating the sheets from one another using the handles 15.
  • the woven structure is coated with a sealing material to form the lifting tank.
  • the Figure 5 shows the weave of this woven structure having a reservoir shape for the manufacture and binding of upper and lower walls 11.
  • This conventionally represented weave comprises ten warp threads, numbered 1 to 10, opposite ten vertical columns and 20 weft yarns, numbered 1 to 20 and a temple actuation in the weaving area numbered 21, next to 21 rows in an evolution of the weave.
  • the warp threads numbered 1 and 3 correspond to the warp threads of the lower ply 11 and the warp threads numbered 2 and 4 correspond to the warp threads of the upper ply 10.
  • the warp threads numbered 5 and 6 correspond to the warp threads.
  • binding and the son numbered 7 and 8 correspond to the warp son of the handles 15.
  • the warp numbered 9 corresponds to the binding yarn of the selvedge 12 and the warp numbered 10 corresponds to the nightingale.
  • the numbered warp thread 4 passes successively (is taken) on the first two weft threads (No. 1 and 2), then passes under (is left) weft thread No. 3, returns to the three weft threads Nos. 4 to 6, then under weft thread No. 7, then again on the three weft threads Nos. 8 to 10, then under the weft thread No. 11, then on the weft threads No. 12 to 14, then under the weft thread No. 15, then passes again on the three weft threads No. 16 to 18 and then passes again on the weft thread No. 19, then under the weft thread N ° 20 and goes over the first two weft threads No. 22 and 23 to the next evolution of the armor.
  • the row 21 of the armor corresponds schematically to the replacement of a pick, that is to say to a weaving phase, by the introduction into the weaving area of the temple to pull the threads of the weave. binding numbered 5 and 6 and the removal of this temple from the weaving area. This corresponds to the level of the loom at the non-propulsion of the shuttle.
  • the Figure 7 shows the loom for the implementation of the method described above according to one embodiment.
  • This loom comprises a weaving zone 18 in which are introduced into at least one upper track and one lower track of the weft son, each of these weft son being introduced between at least two warp son by at least one element d Weft introduction such as a shuttle or jet of air or water jet.
  • the loom also includes first means for carrying on one of said lanes and determining the position of said warp yarns with respect to said weft yarn. These first means may comprise for example a first smooth warp, these first smooth being controlled by a weave mechanism also called dobby.
  • the loom further comprises second means for introducing at least one binding yarn above, between and below said lanes. These second means comprise for example a second smooth binding wire, these second smooth being controlled by this same armor mechanics.
  • the loom also includes a temple 19 for pulling the binding yarns and means for moving this temple out of and into the weaving zone 18 to place the temple 19 in contact with the binding threads and to allow the drawing of those -this.
  • the edge 20 of this temple for receiving the binding son comprises means for retaining these son to maintain their spacing in a direction perpendicular to the direction of propagation of weaving of the woven structure.
  • the rod 19 has for example on this edge a rough surface or an array of vertical grooves (not shown) intended to each receive one or more binding son.
  • the operation of the beam 21 carrying the binding son is as follows.
  • the operator supplies a motor 22 operating continuously until the operator decides to stop it or a first sensor 23 is activated, for example because the unrolled length of the binding wire is too large.
  • the motor 22 makes it possible to unwind the tying son of the beam.
  • this beam 21 must be replaced by a creel when the shape to be achieved is complex, that is to say, as soon as the walls 10, 11 are not flat.
  • the loom comprises on either side of the weaving zone 18 receiving elements such as boxes 24, 25 allowing the reception temporary shuttle (not shown) so as to move the latter in height to prevent it is launched on the loom for example by a thruster-type device cleat or air jet.
  • the second sensor 26 makes it possible to detect that these boxes 24, 25 are placed in height so that the shuttle can not leave. It is then possible to pull the binding son with the temple 19.
  • the third sensor 27 can detect instead that the flush 28 is open for the passage of the shuttle.
  • the displacement means of the temple 19 comprise firstly two actuators 29, 30 of the jack or telescopic arm type for advancing or retreating the temple in the weaving zone 18. These actuators 29, 30 are synchronized so that they work together. They are placed laterally to the weaving zone 18 and their range of motion makes it possible to determine the length of the binding threads drawn by the temple 19.
  • These displacement means also comprise a third actuator 31 for laterally moving the temple, that is to say, to enter or leave the temple 19 in the weaving zone 18.
  • a third actuator 31 for laterally moving the temple, that is to say, to enter or leave the temple 19 in the weaving zone 18.
  • a fourth sensor such as a stop detector 33 can detect that the end of the temple is in position in its housing 32 and stops the actuator 31.
  • This actuator may be a roller placed on a motor shaft which converts a rotary movement into a translational movement.
  • a fifth sensor 34 makes it possible to detect that the temple has left the weaving zone entirely 18.
  • the temple 19 is thus movable in translation along the X and Y axes in the plane of the weaving zone 18.
  • a fourth actuator 35 of the jack type makes it possible to engage and disengage the loom.
  • the method of the invention is applicable to the production of composite parts of sheet metal as well as structural parts used in the production of aircraft, for example fuselages or fuselage parts such as the wings of an aircraft or the radome. It is also possible to make propeller tanks or tank skirts.
  • Maritime applications are conceivable, for illustrative purposes, the realization of hulls of boats, containers, floats, ...

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Woven Fabrics (AREA)
  • Looms (AREA)
EP09705577.6A 2008-01-29 2009-01-28 Procédé de tissage et métier à tisser pour la mise en oeuvre de ce procédé Active EP2260133B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0850542A FR2926822B1 (fr) 2008-01-29 2008-01-29 Procede de tissage et metier a tisser pour la mise en oeuvre de ce procede
PCT/EP2009/050955 WO2009095415A1 (fr) 2008-01-29 2009-01-28 Procédé de tissage et métier à tisser pour la mise en oeuvre de ce procédé

Publications (2)

Publication Number Publication Date
EP2260133A1 EP2260133A1 (fr) 2010-12-15
EP2260133B1 true EP2260133B1 (fr) 2017-03-15

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EP09705577.6A Active EP2260133B1 (fr) 2008-01-29 2009-01-28 Procédé de tissage et métier à tisser pour la mise en oeuvre de ce procédé

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US (2) US8627855B2 (https=)
EP (1) EP2260133B1 (https=)
JP (1) JP5592272B2 (https=)
FR (1) FR2926822B1 (https=)
WO (1) WO2009095415A1 (https=)

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JP2011511174A (ja) 2011-04-07
US20110036446A1 (en) 2011-02-17
WO2009095415A1 (fr) 2009-08-06
EP2260133A1 (fr) 2010-12-15
FR2926822B1 (fr) 2010-05-28
US8950440B2 (en) 2015-02-10
US20140014222A1 (en) 2014-01-16
FR2926822A1 (fr) 2009-07-31
JP5592272B2 (ja) 2014-09-17
US8627855B2 (en) 2014-01-14

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