EP3708702B1 - Métier à tricoter chaîne - Google Patents

Métier à tricoter chaîne Download PDF

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Publication number
EP3708702B1
EP3708702B1 EP20182611.2A EP20182611A EP3708702B1 EP 3708702 B1 EP3708702 B1 EP 3708702B1 EP 20182611 A EP20182611 A EP 20182611A EP 3708702 B1 EP3708702 B1 EP 3708702B1
Authority
EP
European Patent Office
Prior art keywords
knitting machine
warp knitting
guide bars
machine according
control surfaces
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.)
Active
Application number
EP20182611.2A
Other languages
German (de)
English (en)
Other versions
EP3708702A3 (fr
EP3708702A2 (fr
Inventor
Klaus Brandl
Christian Schneider
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.)
Karl Mayer Stoll R&D GmbH
Original Assignee
Karl Mayer Stoll R&D GmbH
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 Karl Mayer Stoll R&D GmbH filed Critical Karl Mayer Stoll R&D GmbH
Priority to EP20182611.2A priority Critical patent/EP3708702B1/fr
Priority to CN202010717855.1A priority patent/CN113846416B/zh
Publication of EP3708702A2 publication Critical patent/EP3708702A2/fr
Publication of EP3708702A3 publication Critical patent/EP3708702A3/fr
Priority to TW110114576A priority patent/TWI815107B/zh
Application granted granted Critical
Publication of EP3708702B1 publication Critical patent/EP3708702B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
    • D04B27/10—Devices for supplying, feeding, or guiding threads to needles
    • D04B27/24—Thread guide bar assemblies
    • D04B27/26—Shogging devices therefor
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
    • D04B27/10—Devices for supplying, feeding, or guiding threads to needles
    • D04B27/24—Thread guide bar assemblies
    • D04B27/32—Thread guide bar assemblies with independently-movable thread guides controlled by Jacquard mechanisms

Definitions

  • the present invention relates to a warp knitting machine with a bar arrangement which has a plurality of guide bars whose movements in an offset direction are controlled by a pattern control arrangement, the pattern control arrangement having a control surface running around an axis of rotation for each guide bar.
  • Such a warp knitting machine is out DE 199 63 990 A1 known.
  • several sample wheels are arranged on a common sample wheel shaft.
  • U1 shows a sample gear for a warp knitting machine, in which several sample disks are also rotatably mounted on a sample disk section. Several sample discs are separated from each other by spacers. In order to exchange sample disks, the sample disks are pulled off the sample disk section in the axial direction.
  • a warp knitting machine is used to produce a knitted fabric.
  • the threads are in this case guided by thread guides which are designed, for example, as guide needles.
  • the thread guides are each attached to guide bars. So you follow the movement of the guide bars.
  • the yarn guides In a stitch-forming process, the yarn guides must be guided around knitting needles or working needles. This means that during each stitch-forming process, the guide bars have to be moved back parallel to their longitudinal extension in a movement section, perpendicular to the longitudinal extension in a second section, parallel to the longitudinal extension in a third section, and perpendicular to the longitudinal extension in a fourth section. This movement does not necessarily have to be closed.
  • the movement parallel to the length of the bars is also referred to as "offset movement".
  • the offset direction corresponds to the direction of the longitudinal extent of the guide bars.
  • pattern discs are often used, on the outer circumference of which a control surface is arranged.
  • the guide bar lies against the one assigned to it Sample disk with a plunger and is optionally held in contact with the sample disk via a spring arrangement.
  • a warp knitting machine If a warp knitting machine is to be converted for a new knitted fabric, for example to produce a knitted fabric with a changed pattern, the operator must fetch such a pattern disk from a store for each guide bar and mount it on the warp knitting machine. This often leads to problems.
  • the pattern discs can be equipped with different laying beginnings, e.g equal and opposite in the underlay direction or overlay direction or pattern-related laying shifts. Even if a "correct" sample disc is used, incorrect assembly can result in defective knitted fabric or knitted fabric of inadequate quality. Such a defect is often not immediately recognizable in the knitted fabric coming out of the warp knitting machine, but is only recognized when the knitted fabric is later finished or processed.
  • the object of the invention is to ensure a good quality of a knitted fabric while being easy to handle.
  • This object is achieved in a warp knitting machine of the type mentioned at the outset in that the control surfaces of at least two guide bars are arranged on a common unchangeable component.
  • these two guide bars have a fixed assignment to one another, which cannot be changed when the control surfaces are installed.
  • the control surfaces of all guide bars are preferably arranged on the component.
  • the movements of all guide bars are thus set to one another.
  • the operator only has to assemble a single component. Errors in the arrangement of the control surfaces, which can occur as a result of incorrect selection of a sample pane or incorrect assembly of the sample pane, are thus reliably avoided.
  • the component is formed in one piece with the control surfaces.
  • the control surfaces can therefore only be separated from one another by destroying the component.
  • the component preferably has a projection which protrudes in the radial direction in relation to the axis of rotation, with adjacent projections being separated from one another by a depression which has a bottom.
  • the control surfaces thus have a defined distance from one another. An operator can then check relatively easily whether the component is mounted correctly. This is the case when the rams of the guide bars are in contact with the control surfaces, possibly with the interposition of rollers. If a plunger or a roller of a plunger protrudes into the recess, this is a sign that the component is not mounted correctly. However, the component can be mounted with certain tolerances as long as it is ensured that the plungers of the respective guide bars are in contact with the control surfaces. Smaller lateral displacements, i.e. displacements transverse to the direction of offset, are therefore permissible.
  • the component preferably has a cylindrical base body, from which the projections extend radially outwards.
  • the component is thus defined by simple geometries. Only the projections deviate from the cylindrical shape of the base body.
  • the cylindrical base body preferably has a through hole.
  • the base body can then be slid onto a shaft and, if necessary, secured against twisting relative to the shaft. This allows for very easy assembly.
  • the cylindrical base body preferably has an outside diameter that is smaller than a diameter at the bottom of the depression. A relatively large amount of material is then provided between the projections, so that the projections and thus the control surfaces on the projections are fixed in their angular positions and protected against destruction.
  • the projections preferably transition into the cylindrical base body and/or the bottom of the depression with a rounding. The risk of stress cracks occurring here is kept small.
  • the component is preferably designed as a cast part or forged part in which only the control surfaces and the through-hole are machined. This simplifies the manufacture of the component.
  • the warp knitting machine 1 shown in a highly schematic manner has a bar arrangement 2 .
  • the bar arrangement has a knitting needle bar 3 and several guide bars 4 .
  • only one of the guide bars 4 is visible because the guide bars 4 are in the in 1 shown view are arranged perpendicular to the plane of the drawing one behind the other.
  • the knitting needle bar 3 carries knitting needles 5. During a stitch formation process, the knitting needle bar 3 moves with the knitting needles 5 up and down.
  • the guide bars 4 are suspended from levers 6 so that guide needles 7 or other thread guides can be pivoted through alleys between the knitting needles 5 . Between these pivoting movements, the guide bars 4 must perform a movement in an offset direction 8 represented by an arrow.
  • the offset direction 8 corresponds to the longitudinal extent of the guide bars 4.
  • the movement of the guide bars 4 in the offset direction 8 is controlled by a pattern control arrangement 9 .
  • the pattern control arrangement 9 has a control surface 10, 11 ( Figures 2 and 3 ) on.
  • the guide bars 4 rest against the control surfaces via the plunger 12 .
  • the tappets 12 can have a roller 13 at their end adjacent to the control surfaces 10, 11 in order to keep friction small.
  • the control surfaces 10, 11 are arranged according to the invention on a component 14, which is unchangeable.
  • the component 14 is preferably designed as a cast part or a forged part.
  • the component 14 has a cylindrical base body 15 which is provided with a through hole 16 .
  • the through-opening 16 has a groove 17 which runs parallel to the axis of the through-hole 16 .
  • the groove 17 is used to accommodate a spring, so that the component 14 can be held on a shaft in a rotationally fixed manner.
  • the control surface 10 is arranged on a projection 18 which protrudes in the radial direction relative to the base body 15 and the axis of the bore 16 .
  • the axis of the bore 16 simultaneously forms an axis of rotation for the component 14.
  • the control surface 11 is arranged on a projection 19 which also protrudes from the base body 15 in the radial direction. Between the projections 18, 19 a recess 20 is provided.
  • the recess 20 has a bottom. This floor has a larger diameter than the base body 15.
  • the projections 18 , 19 each merge with a rounding 21 , 22 into the base body 15 and the bottom of the recess 20 .
  • control surfaces 10, 11 and the bore 16 with the groove 17 are machined.
  • the control surfaces 10, 11 can be produced by milling or grinding.
  • This in 3 Component 14 shown has two control surfaces 10, 11. How many control surfaces the component 14 must have depends on the number of guide bars 4 used.
  • the component 14 is rotated by a motor 23, which can also drive a main shaft, not shown in detail, which in turn is responsible for the lifting movement of the knitting needle bar 3 and for the pivoting movement of the guide bars 4.
  • the motor 23 can be connected to the component 14 via a belt or a chain 24 and optionally via a gear 25 .
  • the warp knitting machine 1 has to be converted for the production of a different knitted fabric, only the component 14 has to be exchanged. This ensures that both the start of the laying process is synchronous with the knitting movement of the warp knitting machine 1 and the movements of the guide bars 4 relative to each other in the offset direction, including the position of the guide bars 4 laterally with their thread feed.
  • the pattern device 9 can be designed in a structurally simple manner. This minimizes the tolerance chain from sample devices and control surfaces and reduces the costs in production. In addition, the process of converting the warp knitting machine 1 is simplified by using the component 14 .
  • Sources of error when changing patterns can also be reduced in a simple manner.

Landscapes

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

Claims (8)

  1. Métier à tricoter chaîne (1) avec un système à barres, qui comporte plusieurs barres à passettes (4), dont les mouvements sont commandés dans une direction de déport (8) sur un système de commande de dessin (9), sachant que le système de commande de dessin (9) pour chaque barre à passettes (4) comporte une surface de commande (10, 11) passant autour d'un axe de rotation, sachant que les surfaces de commande (10, 11) d'au moins deux barres à passettes (4) sont disposées sur un composant commun non modifiable (14), caractérisé en ce que le composant (14) est constitué en une seule pièce avec les surfaces de commande (10, 11).
  2. Métier à tricoter chaîne selon la revendication 1, caractérisé en ce que les surfaces de commande (10, 11) de toutes les barres à passettes sont disposées sur le composant (14).
  3. Métier à tricoter chaîne selon la revendication 1 ou 2, caractérisé en ce que le composant (14) comporte pour chaque surface de commande (10, 11), une saillie ressortant en direction radiale par rapport à l'axe de rotation, sachant que les saillies voisines (18, 19) sont séparées l'une de l'autre par une cavité (20), qui comporte un fond.
  4. Métier à tricoter chaîne selon la revendication 3, caractérisé en ce que le composant (14) comporte un corps de base cylindrique (15) d'où s'étendent les saillies (18, 19) radialement vers l'extérieur.
  5. Métier à tricoter chaîne selon la revendication 4, caractérisé en ce que le corps de base cylindrique (15) comporte un trou de passage (16).
  6. Métier à tricoter chaîne selon la revendication 4 ou 5, caractérisé en ce que le corps de base cylindrique (15) comporte un diamètre extérieur, qui est plus petit qu'un diamètre au fond de la cavité (20).
  7. Métier à tricoter chaîne selon l'une quelconque des revendications 4 à 6, caractérisé en ce que les saillies (18, 19) passent avec une rotondité (21, 22) dans le corps de base cylindrique (15) et/ou le fond de la cavité (20).
  8. Métier à tricoter chaîne selon la revendication 5 ou selon la revendication 6 ou 7 en fonction de la revendication 5, caractérisé en ce que le composant (14) est constitué comme pièce moulée ou pièce forgée pour laquelle seuls les surfaces de commande (10, 11) et le trou de passage (16) sont usinés.
EP20182611.2A 2020-06-26 2020-06-26 Métier à tricoter chaîne Active EP3708702B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP20182611.2A EP3708702B1 (fr) 2020-06-26 2020-06-26 Métier à tricoter chaîne
CN202010717855.1A CN113846416B (zh) 2020-06-26 2020-07-23 经编机
TW110114576A TWI815107B (zh) 2020-06-26 2021-04-22 經編機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20182611.2A EP3708702B1 (fr) 2020-06-26 2020-06-26 Métier à tricoter chaîne

Publications (3)

Publication Number Publication Date
EP3708702A2 EP3708702A2 (fr) 2020-09-16
EP3708702A3 EP3708702A3 (fr) 2021-01-13
EP3708702B1 true EP3708702B1 (fr) 2022-07-13

Family

ID=71266334

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20182611.2A Active EP3708702B1 (fr) 2020-06-26 2020-06-26 Métier à tricoter chaîne

Country Status (3)

Country Link
EP (1) EP3708702B1 (fr)
CN (1) CN113846416B (fr)
TW (1) TWI815107B (fr)

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE45791C (de) * 1888-02-29 1889-01-29 WlLH. KNIE-STEDT in Berlin O., Kl Markusstr. 3 Fangkettenstuhl
DE275451C (fr) * 1912-08-09 1914-06-19
DE2401688C2 (de) * 1974-01-15 1975-11-20 Karl Mayer, Textil-Maschinenfabrik Gmbh, 6053 Obertshausen Kettenwirkmaschine mit Jacquard-Einrichtung
DE4020550C1 (en) * 1990-06-28 1991-10-17 Karl Mayer Textilmaschinenfabrik Gmbh, 6053 Obertshausen, De Warp knitting machine with needle bed with guide bars - provides knitted goods with stable surface
DE19963990C2 (de) * 1999-12-31 2003-12-11 Mayer Textilmaschf Kettenwirkmaschine mit Mustereinrichtung
JP4210419B2 (ja) * 2000-09-27 2009-01-21 日本マイヤー株式会社 経編機における圧電変位ジャカードガイド構造
DE202006011577U1 (de) * 2006-07-28 2006-09-28 Karl Mayer Textilmaschinenfabrik Gmbh Mustergetriebe für eine Kettenwirkmaschine
ITBS20080115A1 (it) * 2008-06-04 2009-12-05 Santoni & C Spa Metodo per la produzione di articoli tessili su macchine per maglieria in catena e macchina per realizzare tale metodo
DE102009031614B4 (de) * 2009-07-03 2012-01-26 Karl Mayer Textilmaschinenfabrik Gmbh Raschelmaschine
GB2511484B (en) * 2013-01-21 2019-11-27 Brunet International Hong Kong Ltd Lace manufacturing method
EP3476990B1 (fr) * 2017-10-25 2021-05-05 KARL MAYER STOLL R&D GmbH Système de barres à passettes d'un métier chaîne et dispositif de barres à passettes
CN109537157A (zh) * 2019-01-25 2019-03-29 福建杰嘉科技有限公司 一种具有贾卡驱动装置的经编机
CN210031064U (zh) * 2019-05-30 2020-02-07 卡尔迈耶技术纺织有限公司 经编机

Also Published As

Publication number Publication date
CN113846416B (zh) 2023-06-06
CN113846416A (zh) 2021-12-28
TWI815107B (zh) 2023-09-11
EP3708702A3 (fr) 2021-01-13
TW202204711A (zh) 2022-02-01
EP3708702A2 (fr) 2020-09-16

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