EP0287577B1 - Tissu tricote en chaine et metier a tricoter a fil de trame pour produire le tissu tricote en chaine - Google Patents

Tissu tricote en chaine et metier a tricoter a fil de trame pour produire le tissu tricote en chaine Download PDF

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Publication number
EP0287577B1
EP0287577B1 EP87905585A EP87905585A EP0287577B1 EP 0287577 B1 EP0287577 B1 EP 0287577B1 EP 87905585 A EP87905585 A EP 87905585A EP 87905585 A EP87905585 A EP 87905585A EP 0287577 B1 EP0287577 B1 EP 0287577B1
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EP
European Patent Office
Prior art keywords
work
needles
machine according
weft insertion
insertion machine
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
EP87905585A
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German (de)
English (en)
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EP0287577A1 (fr
Inventor
Francisco Speich
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.)
Textilma AG
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Textilma AG
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Filing date
Publication date
Application filed by Textilma AG filed Critical Textilma AG
Publication of EP0287577A1 publication Critical patent/EP0287577A1/fr
Application granted granted Critical
Publication of EP0287577B1 publication Critical patent/EP0287577B1/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
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B23/00—Flat warp knitting machines
    • D04B23/12—Flat warp knitting machines with provision for incorporating unlooped wefts extending from selvedge to selvedge

Definitions

  • the invention relates to a weft knitting machine for producing a warp-knitted fabric according to the preamble of claim 1.
  • a weft knitting machine of the type mentioned is known for example from DE-PS 141 414. Using the weft knitting machine, individual warp stitch stitches are formed, which are held together by weft threads. During the knitting process, the weft guides swing through the needle lanes of the knitting needles. Accordingly, the fineness of the warp knitted fabric to be produced is limited by the width of the knitting needles and the width of the weft guide.
  • the object of the invention is to design a weft knitting machine of the type mentioned at the beginning in such a way that the production of a finer warp knitted fabric is possible, i.e. to specify a weft knitting machine which enables a finer division of the knitting needles.
  • the production of the warp knitted fabric is thus divided into two identical rows of knitting needles, which are laterally offset by half the needle pitch and work out of phase. This makes it possible to provide a coarser pitch for each knitting needle bar and still obtain a finer warp knit.
  • the stitches of every second warp stitch stitch are thereby offset by a partial stitch compared to the stitches of each first warp stitch stitch.
  • the stitches in a row are not all made at the same time, but in two phases, corresponding to the two sets of knitting needles, which are used out of phase, ie used one after the other.
  • the production of a row of stitches is thus divided into two phases, so that practically twice as many stitches can be accommodated per row of stitches than was the case with the finest warp-knitted fabrics to date.
  • the warp knitted fabric produced by the weft knitting machine is characterized by an extraordinary delicacy, which significantly improves the appearance and the feel of the warp knitted fabric.
  • the knitted needle bars can be arranged one behind the other.
  • an embodiment according to claim 3 is more advantageous since the knitting needles can then have essentially the same length.
  • the knitting needles can then preferably be clamped according to claim 4. Clamping the knitting needles is also possible.
  • an embodiment according to claim 6 is particularly advantageous.
  • the knitting needles of the two knitting needle bars will be identical.
  • an embodiment according to claim 7 is also advantageous if yarns of different properties are to be processed with the knitting needles of the individual knitting needle bars.
  • the knitting needle bars can be out of phase by an angle other than 180 °. However, an embodiment according to claim 11 is advantageous because at 180 ° the shift of the stitches is just half a stitch length.
  • the knitting needle bars are expediently driven according to claim 12.
  • the arrangement of the warp thread guides according to claim 13 requires only a small amount of space and still allows an individual drive of the warp thread guide sets for the individual knitting needles.
  • the warp thread guides of each knitting needle bar are expediently coupled to their drive.
  • the warp threading device must work twice as fast as a knitting needle bar, since the same warp threading device must operate two knitting needle bars.
  • Figure 1 shows the detail of a warp knitted fabric, which is formed from warp stitch sticks 2 1 and 2 2, which are knitted from a warp thread 4 and are connected to one another by full weft threads 6 1, 6 2.
  • the stitches 82 of every second warp stitch stitch 22 are offset from the stitches 81 of each first warp stitch stitch stick 21 by half a stitch.
  • two full weft threads 61, 62 are arranged. This results in a particularly dense and fine structure of the warp knitted fabric.
  • the warp knitted fabric shown in FIG. 1 is only produced with one weft thread per stitch by omitting every second full weft thread and the entry of the full weft thread is only carried out when stitches of first warp stitch stitches 2 1 or second warp stitch sticks 2 2 are formed .
  • FIG. 2 shows a warp knitted fabric according to FIG. 1, so that the same parts are provided with the same reference numerals.
  • the warp knitted fabric is also provided with partial weft threads 10, which, however, only run within the warp stitch stitches 2 1, 2 2.
  • partial weft threads 10 can be different colored pattern threads or a rubber thread which gives the warp knitted fabric particularly elastic properties.
  • FIG. 3 again shows a warp knitted fabric according to FIG. 2, so that again the same parts are provided with the same reference numerals.
  • the warp knitted fabric according to FIG. 3 is equipped with a further weft thread 12, which is guided between any warp stitch stitches 2 1, 2 2 according to the pattern. Accordingly, such a partial weft thread 12 can cross with a full weft thread 6 1 in a stitch 8 3.
  • FIGs 4 to 7 show the parts of an inventive weft knitting machine essential for the production of warp knitted fabrics.
  • This weft knitting machine contains two knitting needle bars 14, 16 arranged one above the other, each carrying a set of knitting needles 18, 20.
  • the knitting needles 18, 20 have on their rear shafts 22 dovetail-like lugs 24, with which they are each clamped in a clamping device 26, 28.
  • Tensioning screws 30 serve to tighten the clamping devices 26, 28. These tensioning screws 30 are accessible either from the rear or from the top or from the bottom of the knitting needle bars 14, 16.
  • the knitting needle bars 14, 16 are fastened to plungers 32, which serve on the one hand to carry the knitting needle bars and on the other hand to drive the knitting needle bars 14, 16 to and fro.
  • the plungers 32 are slidably guided in a housing 34 on two slide bearings 36.
  • Two driver rollers 38, 40 are arranged on the tappets.
  • the driving roller 38 interacts with a forward curve 42 and the driving roller 40 with a return curve 44, which are arranged on a drive shaft 46 in the housing 34.
  • Such a plunger 32 is provided for each knitting needle bar 14 or 16, the corresponding forward curve and return curve being arranged out of phase on the drive shaft 46, so that the corresponding plunger oscillates against one another out of phase.
  • the knitting needles 18, 20, which are, for example, crochet needles, lie in one plane and are supported on a tapping plate 48 in which they are guided in guide recesses 50, as can be seen in particular from FIGS. 6 and 7.
  • Each set of knitting needles 18, 20 is assigned a set of warp thread guides 52, 54, which also operate out of phase.
  • the warp thread guides 52 which are assigned to the knitting needles 18, are fastened to a shaft 56 on which an arm 58 is arranged, which is connected to a toggle lever 62 via a coupling member 60.
  • the toggle lever 62 which is pivotally mounted on an axis 64, is connected via a further coupling rod 66 to a shoulder 68 of the knitting needle bar 14 in terms of drive.
  • the warp thread guide 52 is thus moved up and down in synchronism with the knitting needle bar 14 in the vertical direction.
  • the warp thread guides 54 which are assigned to the knitting needles 20, are fastened to a sleeve 70 which partially surrounds the shaft 56.
  • This also has an arm 72 which is connected via a coupling member 74 to a further toggle lever 76 which can be pivoted on the axis 64.
  • This toggle lever 76 is connected via a coupling rod 78 to a shoulder 80 which is attached to the knitting needle bar 16, so that the second warp thread guides 54 are pivoted in the vertical direction synchronously with the second knitting needles 20.
  • a drive engages the shaft 56 in the axial direction and serves to offset the warp thread guides 52, 54 by at least one knitting needle pitch, so that the warp thread guides 52, 54 can each be guided around a knitting needle 18, 20 by a warp thread 82, 84 to be able to insert it into a knitting needle 18, 20, as can be seen particularly clearly from FIGS. 6 and 7.
  • a full weft thread guide 86 and various partial weft thread guides 88, 90 are arranged above the knock-off board 48 and the advanced knitting needles 18, 20, some of which are designed as tube thread guides and some as perforated needle thread guides.
  • the guides are attached to various laying bars 92, 94, 96, which are designed, driven and controlled in the usual way.
  • the warp-knitted fabric produced is drawn off downward by a pull-off device 100 in a gap formed between the knock-off plate 48 and a guide bar 98.
  • the first knitting needles 18 and the second knitting needles 20 are each used alternately, namely in phases shifted by 180 ° (curves a and b).
  • the first knitting needles 18 are advanced (curve a), the first warp thread guides 52 inserting warp threads 82 into the knitting needles 18 (curve c).
  • the second warp thread guides 54 (curve d), which are assigned to the second knitting needles 20 (curve b), are retracted, i.e. shown in the underlying position.
  • the first knitting needles 18 are then withdrawn into the position shown in FIG. 7; to knock off a stitch.
  • the full weft thread guide 86 (curve e) moves across the width of the goods to the right side of FIG. 6 (not shown).
  • the second knitting needles 20 are then advanced (curve b) and the warp-laying process is carried out by means of the warp thread guides 54 for the warp threads 84 on the second knitting needles 20 (curve d), as shown in FIG.
  • the full weft guide 86 is again moved to the left side before the first knitting needles 18 are extended. In this way, two weft threads are inserted into each stitch, as shown in FIG. 1.
  • Figure 8 shows a further variant of the first warp thread guide 52 1 and the second warp thread guide 54 1, which are arranged on a common, not shown laying bar and are moved together. All warp thread guides 52 1, 54 1 perform the same movement, but only the first warp thread guides 52 1 or the second warp thread guides 54 1 are used and the rest of the warp thread guides perform an empty movement. In contrast to the warp thread guides 52 and 54 of Figures 6 and 7, the warp thread guides 52 1 and 54 1 must have twice the speed.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Knitting Of Fabric (AREA)

Abstract

Dans le tissu tricoté chaîne, les colonnes de mailles chaîne (21, 22) ayant une position identique, sont reliées entre elles par des fils de trame (61, 62). Dans les rangées de mailles, les mailles (82) de chaque deuxième colonne de mailles chaîne (22) sont décalées d'une fraction de maille par rapport aux mailles (81) de chaque première colonne de mailles chaîne (21). On obtient de cette manière un tissu tricoté chaîne particulièrement dense et fin.

Claims (16)

1. Métier à tricoter à fil de trame pour fabriquer un tissu tricoté en chaîne, comprenant transversalement à une platine d'avancement, des aiguilles à tricoter guidées en va et vient (18, 20) et les guides-fil de chaîne leur correspondant (52, 54, 52₁, 54₁) qui sont mobiles quand les aiguilles (18, 20) à tricoter sont avancées pour déposer les fils de chaîne entre les aiguilles à tricoter (18, 20), ainsi qu'au moins un guide-fil de trame (86) se déplaçant en va et vient transversalement par rapport aux aiguilles à tricoter (18, 20) caractérisé en ce que les aiguilles à tricoter (18, 20) sont réparties régulièrement sur deux barres d'aiguilles à tricoter (14, 16) reposant d'un même côté par rapport au tissu et sont intercalées l'une par rapport à l'autre et on peut les déplacer en opposition de phase et à chaque barre d'aiguilles à tricoter (14, 16) correspond un jeu de guides-fil de chaîne (52, 54, 52₁, 54₁).
2. Métier à tricoter à fil de trame selon la revendication 1, caractérisé en ce qu'on place les barres d'aiguilles à tricoter (14, 16) l'une derrière l'autre.
3. Métier à tricoter à fil de trame selon la revendication 1, caractérisé en ce qu'on place les barres d'aiguilles à tricoter (14, 16) l'une au-dessus de l'autre.
4. Métier à tricoter à fil de trame selon la revendication 3, caractérisé en ce qu'on peut fixer les aiguilles à tricoter (18) de la barre supérieure d'aiguilles à tricoter (14) par le haut et les aiguilles à tricoter (20) de la barre inférieure d'aiguilles à tricoter (16) par le bas.
5. Métier à tricoter à fil de trame selon la revendication 1, caractérisé en ce qu'on peut fixer les aiguilles à tricoter (18, 20) des deux barres (14, 16) d'aiguilles à tricoter par l'arrière.
6. Métier à tricoter à fil de trame selon la revendication 1, caractérisé en ce que les aiguilles à tricoter (18, 20) présentent des prolongements (24) en forme de queue d'aronde, qu'on maintient dans les dispositifs de pincement correspondants (26, 28) des barres (14, 16) d'aiguilles à tricoter.
7. Métier à tricoter à fil de trame selon la revendication 1, caractérisé en ce qu'on réalise de manière plus mince les aiguilles à tricoter (18, 20) de l'une des barres (14, 16) d'aiguilles à tricoter que les aiguilles à tricoter (20, 18) de l'autre barre d'aiguilles à tricoter (16, 14).
8. Métier à tricoter à fil de trame selon la revendication 1, caractérisé en ce qu'au moins les pointes des aiguilles à tricoter (18, 20) des deux barres d'aiguilles à tricoter (14, 16) se trouvent dans un même plan.
9. Métier à tricoter à fil de trame selon la revendication 1, caractérisé en ce qu'on place les aiguilles à tricoter (18, 20) des deux barres d'aiguilles à tricoter (14, 16) sur une platine d'avancement commune (48) avec des évidements de guidage (50) en forme de peigne.
10. Métier à tricoter à fil de trame selon la revendication 1, caractérisé en ce qu'on place les aiguilles à tricoter (18, 20) des deux barres d'aiguilles à tricoter (14, 16) sur une même platine commune d'avancement sans guidage latéral.
11. Métier à tricoter à fil de trame selon la revendication 1, caractérisé en ce qu'on peut déplacer les barres d'aiguilles à tricoter (14, 16) en opposition de phase de 180°.
12. Métier à tricoter à fil de trame selon la revendication 1, caractérisé en ce qu'on peut déplacer les barres d'aiguilles à tricoter (14, 16) au moyen de bielles ou de came (38, 40, 42, 44).
13. Métier à tricoter à fil de trame selon la revendication 1, caractérisé en ce qu'on dispose les guides-fil de chaîne (52, 54) des deux barres (14, 16) d'aiguilles à tricoter sur un axe commun et qu'on peut les entraîner en opposition de phase.
14. Métier à tricoter à fil de trame selon les revendications 12 et 13, caractérisé en ce qu'on accouple les guides-fil de chaîne (52, 54) dans le dispositif à levier avec une genouillère logée en pivotement (62, 76) en entraînement avec les barres d'aiguilles à tricoter correspondantes (14, 16) pour exécuter un mouvement vertical de va et vient correspondant, l'arbre commun (56) pouvant être décalé en va et vient au moins d'un intervalle d'aiguille.
15. Métier à tricoter à fil de trame selon la revendication 1, caractérisé en ce qu'on place les guides-fil de chaîne (52₁, 54₁) pour les deux barres d'aiguilles à tricoter sur un dispositif commun de dépôt de fil de chaîne, dont la vitesse d'entraînement est le double de celle des barres d'aiguilles à tricoter.
16. Métier à tricoter à fil de trame selon la revendication 1, caractérisé en ce qu'il présente un guide-fil pleine trame (86) qu'on peut déplacer sur toute la largeur du tissu, lors de la formation aussi bien d'une rangée de mailles de premières mailles (8₁) que de la formation d'une rangée de mailles de deuxièmes mailles (8₂).
EP87905585A 1986-09-16 1987-09-11 Tissu tricote en chaine et metier a tricoter a fil de trame pour produire le tissu tricote en chaine Expired - Lifetime EP0287577B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3702/86 1986-09-16
CH370286 1986-09-16

Publications (2)

Publication Number Publication Date
EP0287577A1 EP0287577A1 (fr) 1988-10-26
EP0287577B1 true EP0287577B1 (fr) 1991-10-30

Family

ID=4261688

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87905585A Expired - Lifetime EP0287577B1 (fr) 1986-09-16 1987-09-11 Tissu tricote en chaine et metier a tricoter a fil de trame pour produire le tissu tricote en chaine

Country Status (8)

Country Link
US (1) US4918947A (fr)
EP (1) EP0287577B1 (fr)
DD (1) DD266817A5 (fr)
DE (1) DE3774267D1 (fr)
ES (1) ES2007718A6 (fr)
HK (1) HK55192A (fr)
SG (1) SG52192G (fr)
WO (1) WO1988002038A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0450068A4 (en) * 1989-10-13 1992-07-08 Mitsubishi Rayon Co., Ltd. Method and apparatus for producing hollow yarn film knitted article
US5416961A (en) † 1994-01-26 1995-05-23 Schlegel Corporation Knitted wire carrier having bonded warp threads and method for forming same
US6722164B1 (en) * 1997-07-16 2004-04-20 Beech Island Knitting Company Elastic fabric and method of making same
AR018063A1 (es) * 1998-02-13 2001-10-31 Basf Se Poliamida inherentemente estabilizada frente a la luz y al calor y metodo para su obtencion.
JP3856068B2 (ja) * 1998-11-16 2006-12-13 Ｙｋｋ株式会社 細幅クロッシェ編機における複合編針の作動機構
CN105986362A (zh) * 2015-02-16 2016-10-05 亿丰综合工业股份有限公司 梯带及其编织方法
CN112176520B (zh) * 2020-09-28 2022-01-11 广州市天海花边有限公司 一种多梳经编织物及其编织方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE243433C (fr) *
DE141414C (fr) *
NL64105C (fr) * 1949-12-08 1949-04-15
US3898819A (en) * 1969-07-01 1975-08-12 Siegfried F Brand Warp knitting machine
CH542949A (fr) * 1971-07-19 1973-10-15 Aries World Wide Corp Procédé de fabrication d'un tissu, et machine pour sa mise en oeuvre
US3898820A (en) * 1971-09-07 1975-08-12 Siegfried F Brand Warp knit fabrics
DD226917A1 (de) * 1983-03-14 1985-09-04 Textimaforschung Malimo K M St Schusskettengewirke, insbesondere naehgewirke, und verfahren zum herstellen desselben

Also Published As

Publication number Publication date
WO1988002038A1 (fr) 1988-03-24
DD266817A5 (de) 1989-04-12
SG52192G (en) 1992-07-24
DE3774267D1 (de) 1991-12-05
EP0287577A1 (fr) 1988-10-26
US4918947A (en) 1990-04-24
ES2007718A6 (es) 1989-07-01
HK55192A (en) 1992-07-30

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