EP2832906A1 - Tissu, son procédé et son dispositif de fabrication - Google Patents

Tissu, son procédé et son dispositif de fabrication Download PDF

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Publication number
EP2832906A1
EP2832906A1 EP14179661.5A EP14179661A EP2832906A1 EP 2832906 A1 EP2832906 A1 EP 2832906A1 EP 14179661 A EP14179661 A EP 14179661A EP 2832906 A1 EP2832906 A1 EP 2832906A1
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EP
European Patent Office
Prior art keywords
warp
fabric
threads
thread
additional
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.)
Granted
Application number
EP14179661.5A
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German (de)
English (en)
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EP2832906B1 (fr
Inventor
Chokri Cherif
Gerald Hoffmann
Cornelia Sennewald
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Technische Universitaet Dresden
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Technische Universitaet Dresden
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Publication of EP2832906A1 publication Critical patent/EP2832906A1/fr
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    • 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
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D3/00—Woven fabrics characterised by their shape
    • D03D3/06—Fabrics of varying width
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D31/00—Lappet, swivel or other looms for forming embroidery-like decoration on 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
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D5/00—Selvedges

Definitions

  • the invention relates to a fabric having a plurality of linear and parallel warp threads and a plurality of linear and parallel weft threads.
  • the invention relates to a corresponding method and a corresponding device.
  • Tissues have been known for millennia, and various techniques have been and are being used. Typically, longitudinally extending warp threads are clamped side by side, with a portion of the warp threads being raised and a portion lowered to permit weft insertion perpendicular to the warp threads through the shed thus formed. Almost all known weaving techniques have in common that the outer sides of the fabric in the warp direction are limited to linear contours. This means that the tissues have fixed widths.
  • form-fitting fabrics can be produced with the help of the reel-guard weaving technique.
  • individual warp threads are not tied by the shot. These warp threads run "empty", however, resulting in a large waste.
  • V-Web-sheets which change the local warp density in the warp direction for the realization of width variations of the fabric over the fabric length.
  • this method is only used in narrow weaving.
  • Another disadvantage is that only inhomogeneous tissue can be manufactured and the flexibility of this method is extremely low.
  • Another disadvantage is on the one hand the increased and therefore inefficient use of materials and on the other hand not always force flow-fair arrangement of the reinforcing material.
  • the advantages of the invention are in particular that almost any tissue contours in the longitudinal direction of the tissue, i. in the extended warp direction, are feasible.
  • fabrics can be designed according to the required semifinished product geometries and directly, i. be produced in one operation without waste.
  • the fiber material used can be used extremely efficiently, while waste is minimized or completely avoided. It can be saved in this way process stages and additional confectioning levels are largely avoided.
  • the method according to the invention with the features of claim 10 can be realized relatively simply by means of modification and further development of known web technologies.
  • the fabrics according to the invention are compatible with all textile or textile-processable materials and in particular also with high-performance materials, such as e.g. in the form of glass fibers, carbon fibers, ceramic fibers, steel fibers, wire, thermoplastic materials, etc. manufacturable. Also, combinations of, for example, cotton fibers or polyester fibers are known for the (inner) fabric form known in the art, as well as reinforcing fibers of e.g. Carbon fibers as additional warp threads for - at least in sections - formation of the fabric longitudinal side outer contour possible.
  • high-performance materials such as e.g. in the form of glass fibers, carbon fibers, ceramic fibers, steel fibers, wire, thermoplastic materials, etc. manufacturable.
  • combinations of, for example, cotton fibers or polyester fibers are known for the (inner) fabric form known in the art, as well as reinforcing fibers of e.g. Carbon fibers as additional warp threads for - at least in sections - formation of the
  • a fabric of linear and parallel warp and weft threads is present and the shaping by additional warp threads - at least in one or more Sections along the fabric at its longitudinal edges - is realized.
  • a corresponding device is part of the invention.
  • the invention makes it possible to obtain any tissue contours.
  • the contour can run at any angle between -90 ° and 90 °. Both angular and curved contours can be realized. Furthermore, both external and internal edges can be generated. This allows a partial subdivision of the fabric in the longitudinal direction into two or more parts. This final contour or shape-appropriate design can also be used to form force introduction zones. Asymmetric contours are also feasible.
  • the linear and parallel warp threads and the linear and parallel weft threads form a first warp area with a warp direction (0 ° direction) of constant width.
  • the width of this first warp area whose width is accordingly defined by a warp thread of the said linear and parallel warp threads, corresponds to the minimum width of fabric to be realized.
  • at least one additional warp thread preferably at least one thread group consisting of a plurality of adjacently running additional warp threads (which then form a warp thread), is provided to define a second warp area adjoining a longitudinal side of the first warp area.
  • the at least one additional warp thread or the at least one thread group forms, at least in one section along the fabric, the maximum width of the second warp region extending in the weft direction relative to the first warp region.
  • the second warp region forms edge-side (seen in the longitudinal direction, ie warp direction, of the fabric) at least in sections, ie in one or more successive sections in the warp direction, a lateral non-linear, ie deviating from the extended warp direction, contour region of the fabric.
  • “Sectionwise” here means that the second warp area in his Width varies (this is the reason for the non-linear contour at the or the fabric longitudinal edges) and the maximum width of the second warp is only partially realized by one or more additional warp threads.
  • the width of the second warp area can also be zero in sections, that is, if the additional warp threads or submerged in one or more sections in the warp direction in the first warp area.
  • a plurality of groups of threads are provided in such a second warp area. These multiple thread groups are preferably superimposed at least in sections in the warp direction. In this way, in particular different force introduction zones in the second warp area can be realized.
  • such a second warp area is present at both longitudinal fabric edges.
  • the additional warp threads within a thread group preferably within each of the thread groups, run with equal spacing in each case in the weft direction.
  • Such an embodiment can be particularly easily achieved by means of a modification of the so-called. Open Reed Weave technology (weaving with open reed), which will be explained in more detail below.
  • the distances between the thread groups are preferably adjustable to one another in the weft direction and / or in the warp direction.
  • the fabric according to the invention in the weft direction variable distances between additional warp threads - even within a thread group - on, these sections of variable distances in the course of the additional warp threads in the extended warp direction (0 ° direction) and / or in the extended warp direction (K ) diverging Direction and / or whose non-continuous course may be present.
  • At least one said second warp area with at least one said thread group, each with a plurality of additional warp threads, is arranged on both sides of the first warp area.
  • the threads of the two second warp areas are connected according to the desired contour by the weft.
  • the fabric according to the invention obtains a firm structure, in particular, when at least one and preferably several additional warp threads of at least one thread group intersect at least one and preferably a plurality of warp threads of the first warp region. In these overlapping areas, a high warp density is thus given, which contributes to higher fabric loadability.
  • the lateral boundary of the tissue can be realized in various ways.
  • the weft threads have a constant length, wherein the protruding threads are subsequently cut off.
  • the spider contactor technique is used, in which the weft thread is deflected at the edge of the fabric.
  • the gripper weaving technique is used, wherein the weft thread has a defined length while realizing a variable gripper stroke. In the latter two methods, a contoured fabric with a fixed edge can be produced in each case without loss of material. But there are also all other weft insertion methods applicable, in which the hub is variable designable.
  • variant 2 at least some of the tissue limiting additional warp threads are interrupted in the weaving direction and subsequently, ie after several defined shot cycles, again taken up in the tissue. In this way, a lateral contouring (width contour) of the tissue can be achieved.
  • variant 3 Another variant of the invention (hereinafter also referred to as variant 3) is characterized in that one or more additional warp threads are integrated into the fabric in accordance with the desired width contour.
  • at least one additional warp thread is designed as a glue thread, which is woven into the fabric and enters into an adhesive bond with the warp and weft threads.
  • the width contouring provided by at least one additional warp thread of thermoplastic material which is melted on the fabric.
  • the fabric along the said at least one additional warp thread is cut to the final contour.
  • the fabric is particularly preferably produced using the principles of the so-called open-reed weave, which is described, for example, in US Pat DE 10 2010 007 048 A1 is described.
  • open-reed weave which is described, for example, in US Pat DE 10 2010 007 048 A1 is described.
  • this known method affordfadenschuss soe be achieved during the production of a rectangular fabric by at least one effect thread by means of a displaceable in the weft direction and vertically movable displacement device from an upwardly open Rietlücke dips and immersed in another upwardly open Rietlücke the reed.
  • a weft thread is entered. If the effect thread in the weft direction is to be placed again at another position, it is transferred again before the next weft insertion from a Rietlücke to another Rietlücke.
  • the warp thread offset device is configured such that - for producing at least one second warp region (see above) - at least one additional warp thread is now partially placed outside of this rectangle and an outside contouring of the fabric - at least in sections - instead of always placed within the rectangular fabric effect thread - is used.
  • the warp threading device is thus variable in the weft direction over the edge regions of the fabric made of linear warp and weft threads beyond changeable according to the desired final contour of the fabric back and forth.
  • a second warp area can be produced on one longitudinal side of the fabric, which has a contour deviating from the extended warp direction.
  • a plurality of groups of threads each with a plurality of adjacently extending additional warp threads to be provided in a second warp area, are preferably - as indicated above - several used in Gewebelhacks- or warp direction successively arranged warp thread offset devices. This also makes it possible to overlap the several thread groups in sections.
  • the additional warp threads displaceable by means of the warp threading device (s) can be arranged differently in the warp direction as well as diagonally or in the warp direction.
  • a fabric according to the variant 3 can be realized by a further development of the Open-Reed-Weaves by one or more additional warp threads are integrated according to the desired final width contour in the tissue.
  • additional threads consist according to variant 3 of thermoplastic material which is melted, or are designed for example as a glue thread. Subsequently, the blank is cut along the (outermost) additional warp threads to obtain the desired shape of the fabric.
  • This additional warp thread can also be designed as a marker thread (for example colored or metallic) and used to control the blank.
  • FIG. 1 shows a fabric 1 according to the invention in plan view.
  • the fabric 1 has, in a first warp area 4, a plurality of linear and parallel warp threads 2 and a plurality of linear and parallel weft threads 3.
  • the weft threads 3 project beyond this first warp area 4, which has a constant width.
  • Each side of the left and right joins a second warp area 10 and 11, each of a thread group 12 and 13, each with a plurality of additional warp threads 5 and 6, respectively.
  • four additional warp yarns 5 and five additional warp yarns 6 of, for example, ceramic fibers or carbon fibers are provided (they are drawn with broader lines for the sake of clarity).
  • the additional warp threads 5 with each other at the same distance in the weft direction S.
  • the additional warp threads 6 have the same distance from each other in the weft direction S. Also, in the embodiment shown in FIG. 1 provided that the distance from adjacent additional warp threads 5, 6 is the same as the distance from adjacent warp threads 2. However, this is not necessarily so, but depends on the configuration of the distances of the warp thread offset device and their thread occupancy.
  • the additional warp threads 5, 6 have a course deviating from the stretched warp direction K (0 ° direction).
  • the additional warp threads 5, 6 bend obliquely inwards (section 21) according to a section 20 extending in the warp direction K, and again run there linearly in the extended warp direction K (section 22) until they each turn obliquely outwards (Section 23) to then align with the original direction of section 20 (section 24).
  • Section 21 extends the additional warp threads 5, 6 different from the extended warp direction K.
  • FIG. 1 It can also be seen that the additional warp threads 5, 6 run both in the second warp regions 10, 11 and in the first warp region 4. In other words, the additional warp yarns 5, 6 cut a few warp yarns 2 and weft yarns 3 in the first warp region 4 the additional warp threads 5, 6 in the second and in the first warp area 10, 11, 4 in possible.
  • the first warp area 4 is defined by the fact that only linear and parallel warp threads 2 are present in it, while only additional warp threads 5, 6 run in the second warp areas 10, 11.
  • the additional warp threads 5, 6 do not run exclusively in the second warp regions 10, 11, but also in sections in the first warp region 4.
  • the gradients, the number, the distances, the materials, etc. of the additional warp threads 5, 6 in the FIG. 1 are exemplary.
  • Other gradients and thus other contours can be realized without further ado, for example contours with any desired angle profile between -90 ° and 90 °, angular and curved contours, outside and inside edges and asymmetrical contours.
  • 0 ° designates the (stretched) warp direction K and 90 ° the weft direction S. In this way, a fabric with a division into two or more parts is made possible.
  • the contour or shape-appropriate design can also be used to form force introduction zones; these can be done according to the FIG. 1 be present in all sections 20-24.
  • two groups of threads 12 and 14, each with a plurality of additional warp threads 5, 7 are provided, wherein the two groups of threads 12, 14 have a different thread pattern.
  • the additional warp threads 5, 7 of the two thread groups 12, 14 do not intersect, but on the left fabric edge in the two sections 25 and 26 due to the different radii of curvature.
  • the two thread groups 12, 14 again run essentially parallel.
  • the course of the additional warp threads 6 on the right fabric edge in the sections 25, 26 corresponds to the non-linear course in the sections 21, 23 of the right fabric edge in the Fig. 1 ,
  • tissues 1 of the Figures 1 and 2 fall as a blend only the laterally over the fabric 1 projecting weft yarns 3, which have a constant length in the tissue production and are therefore cut off according to the contour of the fabric 1 subsequently.
  • the likewise known gripper weaving technique is used, in which a variable gripper stroke is set for edge or contour production.
  • the weft threads 3 are entered with a defined, variable length, s.
  • FIG. 4 Alternatively, a variable weft insertion by means of air, water or projectile done.
  • FIG. 4 again two sections 28 are shown, in which additional warp threads 5, 6 deviate from the extended warp direction K.
  • FIG. 5 a further embodiment of the invention is reproduced (also referred to above as "variant 2").
  • additional warp threads 8 are used, which were deliberately switched off from the weaving process and incorporated back into this.
  • these additional warp threads 8 - depending on Web progress - excluded from the weaving process by truncation.
  • the tissue section according to the FIG. 5 First, the outermost additional warp thread 8 is cut through in the second warp region 10, then the adjacent additional warp thread, etc.
  • the additional warp threads to be reinserted in the later weaving process are stored outside the fabric ("temporarily parked") and re-introduced at the intended time.
  • temporary parked temporary storage
  • the innermost additional warp thread 8 is reintroduced in the left second warp area 10 in the weaving process, then the outside adjacent, etc.
  • a smaller, right second warp area 11 is provided, which in the present case only consists of two additional warp threads 8.
  • homogeneous conformable fabric can be realized, ie it comes at any point to a compression of warp threads.
  • the configuration of the additional warp threads 8 results in a longitudinal contour profile of the fabric 1 which deviates from the stretched or linear warp direction K.
  • FIG. 6 a further embodiment is shown (also referred to above as "variant 3"), wherein the additional warp threads 9 are designed as adhesive thread, marker thread or as a thread of a thermoplastic material.
  • the additional warp threads 9 are designed as adhesive thread, marker thread or as a thread of a thermoplastic material.
  • the additional warp threads 9 in the sections 30 form a contour of the fabric 1, the (except for the smallest lengths in the region of the deflection at the tissue edges) over the entire tissue section of the Fig.
  • the tissue may be constrained according to the desired contour.
  • the additional warp threads 5, 6, 7, 8, 9 is particularly preferably carried out by means of a further development of the known open reed weave.
  • the additional warp threads are introduced by means of one or more warp threading devices arranged one behind the other in the warp direction K beyond one or both longitudinal sides of the first warp area 4 having a constant width and in this way one or two second warp areas 10, 11 created.
  • the additional warp threads 5, 6, 7 additionally dip into the first warp area 4 in sections.
  • the first warp area 4 has a width that is constant over the fabric length, while the second warp areas 10, 11 are variable to the right and / or left of the first warp area 4.
  • individual warp threads (exemplary embodiments according to FIGS Figures 1-4 ) can be arranged according to requirements in almost any angle (outside the 0 ° position).
  • flow-oriented fabrics, local force introduction zones as well as fabrics with gradient properties can be realized.
  • Such force introduction zones can also be realized, for example, by additional warp threads which determine the non-linear contours deviating from the stretched warp direction or run back over the fabric consisting of linear warp and weft threads, for example from one fabric longitudinal side to the other and possibly again, at least partially , In the latter case further additional warp threads for the non-linear end contour of the fabric are present according to the invention.
  • Two - possibly repeated in the extended warp direction K - crossing additional warp threads or thread groups of several additional warp threads are also feasible, these embodiments should also be mentioned only as an example. All fabrics according to the invention have in common that they have non-linear contours deviating from the stretched warp direction K, which are achieved by at least one additional warp thread.
  • variable shot lengths can continue to be realized, whereby a matched to the local fabric width shot length is made possible. This eliminates subsequent cutting and weft waste is avoided.
  • an automatically producible form-fitting fabric with the best possible utilization of the fiber material to be used for the production of near-net shape fabric with request arranged arranged reinforcing material realized.
  • the entire system is highly variable and allows absolute flexibility in terms of the achievable contours and the arrangement of the reinforcing material.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Woven Fabrics (AREA)
EP14179661.5A 2013-08-02 2014-08-04 Tissu, son procédé et son dispositif de fabrication Active EP2832906B1 (fr)

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Application Number Priority Date Filing Date Title
DE102013108372.2A DE102013108372B4 (de) 2013-08-02 2013-08-02 Gewebe und Verfahren zu dessen Herstellung

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EP2832906A1 true EP2832906A1 (fr) 2015-02-04
EP2832906B1 EP2832906B1 (fr) 2020-05-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3121317A1 (fr) 2015-07-23 2017-01-25 STÄUBLI BAYREUTH GmbH Procédé de tissage d'un tissu, tissu presque en forme de filet par l'intermédiaire d'un tel procédé et métier à tisser pour la mise en oeuvre de ce procédé

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE118429C (fr) *
DE846829C (de) * 1943-11-27 1952-08-18 Jaime Picanol Vorrichtung zum Herstellen von Scheinkanten in Geweben
US3152620A (en) * 1962-09-26 1964-10-13 John D Riordan Woven narrow web with ornamental selvage
FR1425411A (fr) * 1964-12-04 1966-01-24 Honore Vinson Perfectionnement aux rubans tramés par un monofilament
DE3723433A1 (de) 1987-04-03 1988-10-20 Textilma Ag Bandwebmaschine
JP3033017U (ja) * 1996-06-28 1997-01-17 有限会社笠島製紐 両山ピコットを備えた織りテープ
EP0957191A2 (fr) * 1998-04-07 1999-11-17 Leonardo Lenzi Procédé et dispositif pour la fabrication d'articles textiles
DE102010007048A1 (de) 2010-02-06 2011-08-11 Lindauer DORNIER Gesellschaft mit beschränkter Haftung, 88131 Verfahren und Webmaschine zur Herstellung von Geweben mit Zusatzschusseffekten
DE102012200835B3 (de) * 2012-01-20 2013-03-14 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Webmaschine mit einer Vorrichtung zur Bildung von Zusatzschusseffekten
WO2013104056A1 (fr) * 2012-01-13 2013-07-18 Magna International Inc. Préformes en tissu et leur procédé de fabrication
US20130186506A1 (en) * 2012-01-24 2013-07-25 NIKE. Inc. Multiple Layer Weaving

Family Cites Families (2)

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Publication number Priority date Publication date Assignee Title
JPH06272134A (ja) * 1993-03-18 1994-09-27 Nippon Muki Co Ltd 高珪酸ガラス繊維織布の製造方法並びにその製造に用いるｅガラス繊維織布
DE102006013886B3 (de) * 2006-03-25 2007-11-29 Halbach Seidenbänder Vertrieb GmbH Verfahren und Vorrichtung zur Herstellung eines gewebten Bandes

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE118429C (fr) *
DE846829C (de) * 1943-11-27 1952-08-18 Jaime Picanol Vorrichtung zum Herstellen von Scheinkanten in Geweben
US3152620A (en) * 1962-09-26 1964-10-13 John D Riordan Woven narrow web with ornamental selvage
FR1425411A (fr) * 1964-12-04 1966-01-24 Honore Vinson Perfectionnement aux rubans tramés par un monofilament
DE3723433A1 (de) 1987-04-03 1988-10-20 Textilma Ag Bandwebmaschine
JP3033017U (ja) * 1996-06-28 1997-01-17 有限会社笠島製紐 両山ピコットを備えた織りテープ
EP0957191A2 (fr) * 1998-04-07 1999-11-17 Leonardo Lenzi Procédé et dispositif pour la fabrication d'articles textiles
DE102010007048A1 (de) 2010-02-06 2011-08-11 Lindauer DORNIER Gesellschaft mit beschränkter Haftung, 88131 Verfahren und Webmaschine zur Herstellung von Geweben mit Zusatzschusseffekten
WO2013104056A1 (fr) * 2012-01-13 2013-07-18 Magna International Inc. Préformes en tissu et leur procédé de fabrication
DE102012200835B3 (de) * 2012-01-20 2013-03-14 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Webmaschine mit einer Vorrichtung zur Bildung von Zusatzschusseffekten
US20130186506A1 (en) * 2012-01-24 2013-07-25 NIKE. Inc. Multiple Layer Weaving

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3121317A1 (fr) 2015-07-23 2017-01-25 STÄUBLI BAYREUTH GmbH Procédé de tissage d'un tissu, tissu presque en forme de filet par l'intermédiaire d'un tel procédé et métier à tisser pour la mise en oeuvre de ce procédé
CN106367877A (zh) * 2015-07-23 2017-02-01 史陶比尔拜罗伊特股份有限公司 编织织物的方法，该方法编织的近于网形的织物和编织机
US10294589B2 (en) 2015-07-23 2019-05-21 Staubli Bayreuth Gmbh Method for weaving a fabric, near-net shape fabric woven via such a method and weaving loom for implementing this method
CN106367877B (zh) * 2015-07-23 2020-06-23 史陶比尔拜罗伊特股份有限公司 编织织物的方法，该方法编织的网形的织物和编织机
US11505881B2 (en) 2015-07-23 2022-11-22 Staubli Bayreuth Gmbh Weaving loom for implementing a method for weaving a fabric and near-net shape fabric made on such a weaving loom

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EP2832906B1 (fr) 2020-05-27
DE102013108372B4 (de) 2020-03-12

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