EP0873440B1 - Tricot multicouche et son procede de production - Google Patents

Tricot multicouche et son procede de production Download PDF

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Publication number
EP0873440B1
EP0873440B1 EP95940166A EP95940166A EP0873440B1 EP 0873440 B1 EP0873440 B1 EP 0873440B1 EP 95940166 A EP95940166 A EP 95940166A EP 95940166 A EP95940166 A EP 95940166A EP 0873440 B1 EP0873440 B1 EP 0873440B1
Authority
EP
European Patent Office
Prior art keywords
knitted fabric
thread
warp
threads
weft threads
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
EP95940166A
Other languages
German (de)
English (en)
Other versions
EP0873440A1 (fr
Inventor
Peter Offermann
Gerald Hoffmann
Uwe Engelmann
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.)
Technische Universitaet Dresden
Original Assignee
Technische Universitaet Dresden
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 Technische Universitaet Dresden filed Critical Technische Universitaet Dresden
Publication of EP0873440A1 publication Critical patent/EP0873440A1/fr
Application granted granted Critical
Publication of EP0873440B1 publication Critical patent/EP0873440B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/10—Patterned fabrics or articles
    • D04B1/12—Patterned fabrics or articles characterised by thread material
    • D04B1/123—Patterned fabrics or articles characterised by thread material with laid-in unlooped yarn, e.g. fleece fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/54—Thread guides
    • D04B15/56—Thread guides for flat-bed knitting machines
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B7/00—Flat-bed knitting machines with independently-movable needles
    • D04B7/14—Flat-bed knitting machines with independently-movable needles with provision for incorporating internal threads in laid-in fabrics
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/02—Cross-sectional features
    • D10B2403/021—Lofty fabric with equidistantly spaced front and back plies, e.g. spacer fabrics
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/02—Cross-sectional features
    • D10B2403/024—Fabric incorporating additional compounds
    • D10B2403/0241—Fabric incorporating additional compounds enhancing mechanical properties
    • D10B2403/02411—Fabric incorporating additional compounds enhancing mechanical properties with a single array of unbent yarn, e.g. unidirectional reinforcement fabrics
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/02—Cross-sectional features
    • D10B2403/024—Fabric incorporating additional compounds
    • D10B2403/0241—Fabric incorporating additional compounds enhancing mechanical properties
    • D10B2403/02412—Fabric incorporating additional compounds enhancing mechanical properties including several arrays of unbent yarn, e.g. multiaxial fabrics
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/02—Reinforcing materials; Prepregs

Definitions

  • the invention relates to a multilayer or Multi-layer circular knitted fabric made of two RL knitted fabrics, which over one third thread system are interconnected, as well as a Process for its production, in particular for production of semi-finished products for fiber composite materials.
  • DE-PS 458 906 is a multi-layer knitted fabric consisting of two RL knitted fabrics, with their left side of the goods are facing each other and by a third thread system are known.
  • the third is with this knitted fabric Thread system from a stand thread group, which the cohesion the outer knitted fabric guaranteed.
  • the knitwear is for Connection of two different goods areas is provided.
  • the third thread system should fill the knitted fabric better and Give strength in the longitudinal direction.
  • A1 is a reinforcing knitted fabric for resinous laminates known from a knitted or crocheted fabric with reinforcement inserts.
  • the reinforcing fabric consists of a large number of parallel chain inlays and a large number of parallel weft inserts in the Knitted or knitted fabric.
  • the chain insert is from the left arches and the weft insert is limited by the right stitches.
  • the disadvantage is that it is tied to a certain order Construction.
  • a reinforcement textile is also included reinforcement thread oriented according to stress or not can only be manufactured to a limited extent.
  • the invention has for its object a multi-layer knitted fabric of the type mentioned to manufacture that both thin can also be thick-walled, high drapability has and the ability to absorb tensile, pressure and Possesses bending forces.
  • Layers of warp and weft threads are in the outside limiting RL knitted fabrics included.
  • the cohesion of the Warp and weft layers are through the left-hand bows guaranteed that run through the layers and all Loop around existing warp threads.
  • the conclusion of the Multi-layer knitted fabrics are made from left-sided bows looped warp threads alone or together with von right-hand stitches formed over-knit wefts, depending on Structure of warp and weft layers.
  • Warp and weft threads advantageously follow that Force curve in the fiber composite material.
  • the density of the warp and / or weft threads is not necessary be evenly distributed across the width and length of the knitted fabric, but can be used, for example, to hold parts such as Screws, be zero locally.
  • the multi-layer knitted fabric is suitable, in addition to the production of fiber composite materials, for the production of other textile fabrics, such as for example for production of surfaces with fabric and insulation properties.
  • Warp thread family presented a stitch thread across.
  • the loop thread is pulled through in loops and on the other side with the previous stitch thread of the same Mesh system meshed.
  • Second Mesh thread placed across and in the same way as the first Mesh thread processed.
  • a border is due to the constructive shape, e.g. the needle size, given.
  • individual weft threads between the knitting courses between or on the side of the warp thread coulters are provided.
  • Warp and weft threads can be almost unlimited in any Direction and change to other levels.
  • the Direction becomes essential through the force course in Fiber composite material or by places with special reinforcement certainly.
  • the advantage of the invention is that a large number on warp and weft threads connected by two stitch threads become. Thus there is a high drapability of the knitted fabric Securing the bond between the layers. That’s it Knitted fabric especially for the production of fiber composite materials suitable.
  • Fig. 1 the process with warp and two needles its two sub-cycles, offset in time.
  • the needles 1a of the front needle bed become 2a
  • the needles 1b of the rear needle bed in the second partial cycle 2b by knitting lock mechanisms not shown here in moved in its longitudinal direction.
  • the needle heads of each needle 1a, 1b penetrate the warp thread sheet 4 in the amount of Warp thread guide tube 3 alternately completely.
  • the half stitch 5a, 6a reaches the upward movement of the needle 1a, 1b on the needle shaft and opens the needle tongue.
  • the needle 1a, 1b is the stitch thread 5, 6 in the form of Loops between the warp threads of the warp thread family 4 pulled through, the half stitch 5a, 6a the needle tongue closes, glides over it and over the closed one Needle head on the other side of the warp thread array 4 is knocked off.
  • a device for carrying out the method contains a front needle bed 2a with needles 1a and a rear one Needle bed 2b with the needles 1b.
  • the needles 1a, 1b are through here not shown knitting lock mechanisms in their Moved in the longitudinal direction.
  • the needle beds 2a, 2b are Warp thread guide tubes as shown in FIG. 1 assigned.
  • Fig. 2 is the cross section through an after Multi-layer knitted fabric producible according to the invention shown.
  • the connection is made both stitch thread systems by two warp thread sets, that the left-hand mesh 5a of one Knitting thread system 5 in front of the front warp thread sheet 4a and Left-hand stitch arches 6a of the other stitch thread system 6 are arranged behind the rear warp thread sheet 4b.
  • Fig. 3 shows a top view of a multi-layer knitted fabric with stretched warp thread layer.
  • the figure is only the top one Warp thread group visible. More flocks can be behind be arranged.
  • the figure shows how the Warp threads are covered by the left-hand arches of the stitch threads become.
  • Warp threads that are used to hold parts such as screw suitable is.
  • the cohesion at this point is through the guaranteed two stitches.
  • By moving the Half-stitches can create full breakthroughs.
  • Fig. 5 the knitted fabric is covered by an additional layer of Wefts reinforced.
  • the weft threads are through the warp threads and the right meshes of a knitted fabric held.
  • the spacing of the weft threads can be varied.
  • Fig. 7 is another illustration for illustrating the Process. It is shown as when feeding 2 Warp thread groups and 3 layers of weft threads connect the two knitted fabrics and the warp and weft layers are done.
  • Fig. 8 shows possible courses of the weft layers through Switch between those determined by the warp thread coulters Layers are created.
  • the courses of the Warp thread by alternating between those by the Weft layers of certain levels are generated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Of Fabric (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)

Claims (14)

  1. Tricot multicouche composé de deux de deux bandes tricotées jersey (5, 6), dont les côtés tissus sont tournés l'un vers l'autre et qui sont liées par un troisième système de fils, et dans lequel au moins une couche de fils de chaíne (4) est liée à chacune des deux bandes tricotées jersey (5, 6) où elle forme un troisième système de fils, les courbes d'envers (5a, 6a) des mailles des bandes jersey (5, 6) passant à travers cette au moins une couche de fils de chaíne (4) de manière à ce que les courbes d'envers passent jusque sur le fil qui est, vu dans la direction de la bande tricotée jersey en face, toujours le fil de chaíne extérieur ; en outre, le tricot est caractérisé par le fait qu'il existe au moins une autre couche de fils de chaíne (4a, 4b) faisant partie du troisième système de fil et liée aux deux bandes tricotées jersey (5, 6), et que les courbes d'envers (5a, 5b) passent jusque sur le fil qui est, vu dans la direction de la bande tricotée jersey en face, toujours le fil de chaíne extérieur (4a, 4b).
  2. Tricot multicouche selon la revendication n°. 1, caractérisé par le fait qu'il existe au moins une couche de fils de trame supplémentaire (7a ;7b ;7c) qui est liée aux deux bandes tricotées jersey (5, 6), et les mailles d'endroit passent sur le fil de trame extérieur (7a ; 7c) des couches, si l'une ou les deux couches extérieures peuvent être formées par des fils de trame.
  3. Tricot multicouche selon les revendications n°. 1 ou 2, caractérisé par le fait qu'au moins une paire de courbes d'envers (5a, 6a) composée à chaque fois d'une courbe de la bande avant et d'une courbe de la bande arrière du tricot comprend des fils de chaíne d'au moins deux couches de fils de chaíne (4a, 4b).
  4. Tricot multicouche selon la revendication n°. 3, caractérisé par le fait que le nombre de fils de chaíne (4a, 4b) dans chaque paire de courbes varie sur la longueur ou sur la longueur et la largeur de la bande tricotée.
  5. Tricot multicouche selon les revendications n°. 1 ou 2, caractérisé par les fils de trame (7a ; 7b ; 7c) qui sont disposés entre les côtés des mailles d'une bande tricotée (5, 6) et les couches de fils de chaíne (4a ;4b) et / ou entre les couches de fils de chaíne (4a, 4b).
  6. Tricot multicouche selon la revendication n°. 5, caractérisé par le fait que par secteurs, les fils de trame (7a ; 7b ; 7c) sont disposés en parallèle avec les couches de fils de chaíne (4a, 4b).
  7. Tricot multicouche selon les revendications n°. 5 ou 6, caractérisé par le fait que le nombre de fils de trame (7a ; 7b ; 7c) varie sur la largeur ou sur la largeur et la longueur de la bande tricotée.
  8. Tricot multicouche selon les revendications n°. 3, 4, 5, 6 ou 7, caractérisé par le fait que par endroits, la densité des fils de chaíne (4a, 4b) ou / et de trame (7a ; 7b ; 7c) peut être nulle en nombre.
  9. Procédé pour fabriquer un tricot multicouche selon l'une des revendications 1 à 8, où à travers un troisième système de fils, qui est composé d'une couche de fils de chaíne (4a ; 4b), un fil à mailles est mis transversalement sur le côté de devant de ce système de fil et passé par lui en boucles, afin de faire une première bande tricotée jersey (5 ; 6). Sur le côté de derrière du troisième système de fil, le fil à mailles est maillé avec le fil à mailles précédent (5 ; 6) de la même bande tricotée jersey (5 ; 6). Après, un deuxième fil à mailles est mis transversalement sur le côté de derrière et traité de la même manière afin de tricoter une deuxième bande jersey (5 ; 6). Le procédé est caractérisé par l'introduction d'un troisième système de fil qui se compose d'au moins deux couches de fils de chaíne.
  10. Procédé selon la revendication 9, caractérisé par le fait que quelques fils de chaíne (4a, 4b) ou groupes de fils de chaíne sont déplacés dans la direction de la rangée des mailles.
  11. Procédé selon la revendication 9, caractérisé par le fait que, lors du tricotage des rangées de mailles, quelques fils de trame (7a ; 7b ; 7c) sont mis dans la direction de la rangée des mailles entre ou à côté des couches de fils de chaíne (4a ; 4b) et placés sur les boucles des fils à mailles formées les dernières, avant que les boucles suivantes sont formées sur les fils de trame (7a ; 7b ; 7c).
  12. Procédé selon la revendication 11, caractérisé par le fait que la mise dans la position désirée de quelques fils de trame (7a ; 7b ; 7c) est interrompue jusqu'à ce qu'on ait tricoté au moins une rangée de mailles et continue après dans la direction désirée.
  13. Procédé selon les revendications 9 et 11, caractérisé par le fait que les fils de chaíne (4a, 4b) sont basculés dans les niveaux déterminés par les fils de trame (7a ; 7b ; 7c).
  14. Procédé selon les revendications 9 et 11, caractérisé par le fait que les fils de trame (7a ; 7b ; 7c) sont guidés alternativement à travers les niveaux déterminés par les fils de chaíne (4a, 4b).
EP95940166A 1995-12-12 1995-12-12 Tricot multicouche et son procede de production Expired - Lifetime EP0873440B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE1995/001774 WO1997021860A1 (fr) 1995-12-12 1995-12-12 Tricot multicouche et son procede de production

Publications (2)

Publication Number Publication Date
EP0873440A1 EP0873440A1 (fr) 1998-10-28
EP0873440B1 true EP0873440B1 (fr) 2002-04-10

Family

ID=6918225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95940166A Expired - Lifetime EP0873440B1 (fr) 1995-12-12 1995-12-12 Tricot multicouche et son procede de production

Country Status (7)

Country Link
US (1) US6244077B1 (fr)
EP (1) EP0873440B1 (fr)
JP (1) JP2000501792A (fr)
AT (1) ATE216003T1 (fr)
AU (1) AU4171796A (fr)
DE (2) DE4419985C2 (fr)
WO (1) WO1997021860A1 (fr)

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DE19928635C1 (de) * 1999-06-23 2000-10-05 Saechsisches Textilforsch Inst Verfahren zur Herstellung multiaxialer Kettengewirke
DE10029871A1 (de) * 2000-06-09 2001-12-13 Univ Dresden Tech Faservertärkter Leichtmetall-Verbundwerkstoff und Verfahren zur Herstellung
DK176051B1 (da) * 2004-01-26 2006-02-27 Lm Glasfiber As Fibermåtte og en metode til fremstilling af en fibermåtte
CN100406628C (zh) * 2004-04-29 2008-07-30 东华大学 双轴向增强纬编间隔针织结构及其编织方法
CN100441758C (zh) * 2004-10-20 2008-12-10 东华大学 一种针织结构及其编织方法和专用装置
JP5062810B2 (ja) * 2006-09-21 2012-10-31 ダイキョーニシカワ株式会社 複合樹脂成形体及びその成形方法
DE102007047811B8 (de) 2007-11-19 2012-05-16 Technische Universität Dresden Vorrichtung zur Kettfadenzufuhr an Strickmaschinen
DE102009026894B4 (de) 2009-06-10 2013-08-22 Technische Universität Dresden Verfahren zur Herstellung eines Gestricks, das zumindest teilweise schlauch- oder hohlkörperförmig ausgebildet ist sowie Gestrick und Verwendung dieser Gestricke
DE102009037823B3 (de) 2009-08-10 2011-02-24 Peter Müller GmbH Orthopädisches Stützmittel und Herstellungsverfahren hierzu
DE102010010524B4 (de) * 2010-03-05 2013-11-07 Müller Textil GmbH Abstandstextil, insbesondere Abstandsgewirke
DE102010003211B8 (de) 2010-03-24 2012-05-16 Technische Universität Dresden Flachstrickverfahren und mehrlagige, mehraxial verstärkte, dreidimensionale Abstandsstruktur
DE102010056212B4 (de) 2010-12-21 2014-09-18 Sächsisches Textilforschungsinstitut e.V. Maschenware mit Kett- und Schussfäden sowie Verfahren zu seiner Herstellung
JP5719584B2 (ja) * 2010-12-24 2015-05-20 株式会社島精機製作所 多層構造の編地の編成方法
JP5875282B2 (ja) 2011-08-11 2016-03-02 株式会社島精機製作所 マルチレイヤ編地の編成方法とそれに用いる横編機
JP6084041B2 (ja) 2013-01-10 2017-02-22 株式会社島精機製作所 編物基材の形成方法、編物基材、および繊維強化プラスチック
DE102013014584B3 (de) * 2013-08-29 2014-11-13 Sächsisches Textilforschungsinstitut e.V. Verfahren und Vorrichtung zur Herstellung von Kettengewirken mit variabler Breite
JP6177054B2 (ja) 2013-08-29 2017-08-09 株式会社島精機製作所 編機のための経糸の積極送り装置及び編機
JP7000061B2 (ja) * 2017-07-27 2022-02-10 株式会社島精機製作所 Ｆｒｐ用編地基材
DE112022001362T5 (de) 2021-03-03 2024-02-15 Shima Seiki Mfg., Ltd. Strickverfahren für einen gestrickten Träger und gestrickter Träger
CN115559055B (zh) * 2022-10-17 2024-11-29 江南大学 一种夹衬加强筋型经编间隔织物及其编织方法

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Also Published As

Publication number Publication date
DE4419985C2 (de) 1996-04-04
ATE216003T1 (de) 2002-04-15
US6244077B1 (en) 2001-06-12
DE59510165D1 (de) 2002-05-16
EP0873440A1 (fr) 1998-10-28
WO1997021860A1 (fr) 1997-06-19
JP2000501792A (ja) 2000-02-15
DE4419985A1 (de) 1995-12-14
AU4171796A (en) 1997-07-03

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