EP2428601B1 - Agencement d'aiguille d'alimentation pour une barre d'alimentation à jacquard - Google Patents

Agencement d'aiguille d'alimentation pour une barre d'alimentation à jacquard Download PDF

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Publication number
EP2428601B1
EP2428601B1 EP10009427.5A EP10009427A EP2428601B1 EP 2428601 B1 EP2428601 B1 EP 2428601B1 EP 10009427 A EP10009427 A EP 10009427A EP 2428601 B1 EP2428601 B1 EP 2428601B1
Authority
EP
European Patent Office
Prior art keywords
head
guide needle
guide
carrier
arrangement according
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.)
Not-in-force
Application number
EP10009427.5A
Other languages
German (de)
English (en)
Other versions
EP2428601A1 (fr
Inventor
Rüdiger Dr. Ballas
Matthias Zimmermann
Kresimir Mista
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 Textilmaschinenfabrik GmbH
Original Assignee
Karl Mayer Textilmaschinenfabrik 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 Textilmaschinenfabrik GmbH filed Critical Karl Mayer Textilmaschinenfabrik GmbH
Priority to EP10009427.5A priority Critical patent/EP2428601B1/fr
Priority to CN201010587366.5A priority patent/CN102400280B/zh
Publication of EP2428601A1 publication Critical patent/EP2428601A1/fr
Application granted granted Critical
Publication of EP2428601B1 publication Critical patent/EP2428601B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B27/00Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
    • D04B27/10Devices for supplying, feeding, or guiding threads to needles
    • D04B27/24Thread guide bar assemblies
    • D04B27/32Thread guide bar assemblies with independently-movable thread guides controlled by Jacquard mechanisms

Definitions

  • a jacquard guide bar assembly comprising a carrier and a plurality of guide needle units individually removable from the carrier, each guide needle unit having at least one offset drive and a head, the carrier for each guide needle unit having a receptacle with a first portion and a second portion, and the head one end in the longitudinal direction of the guide needle unit seen a first Ausrichtfahne and at the other end a second Ausrichtfahne which are inserted into the sections receiving.
  • Such a guide needle assembly is made EP 2 192 218 A1 known.
  • a guide needle assembly for a jacquard guide bar is shown with a carrier and a plurality of individually removable from the carrier needle assemblies.
  • Each guide needle unit has at least one offset drive and a head (which is part of a mounting body).
  • the carrier has a receptacle for each guide needle unit.
  • the receptacle has a first section and a second section.
  • the head has a first alignment flag at one end as viewed in the longitudinal direction of the guide needle unit and a second alignment flag at the other end.
  • the upper registration flag continues from the lower registration flag.
  • the carrier is provided between the two sections of the receptacle with a groove in which a locking element is arranged.
  • This locking element is movable in the offset direction between a position in which a hook can pass through slots on an extension of the head, and a position in which the locking element engages behind the hook to prevent withdrawal of the guide needle unit from the guide needle assembly.
  • the head has a thickness that corresponds to the needle pitch, so that the heads of adjacent needle units abut each other and form a smooth surface.
  • a jacquard guide bar is used in a warp knitting machine to increase the patterning possibilities there.
  • the guide needles, which are arranged on the jacquard guide bar, are each individually controllable, so that they can be moved by their offset drive in the offset direction. The movement of the guide needle against the guide bar is then superimposed on the movement the guide bar itself, so that greater opportunities are given in the thread guide.
  • the guide needles are grouped into segments or modules, these segments are then attached to the guide bar.
  • a jacquard guide bar is for example made DE 196 13 385 C2 known.
  • the guide needles are attached to holding means that serve the individual control of the guide needles and are attached to segments.
  • electrical controls are provided which control the movement of the guide needles.
  • each guide needle is provided with a needle holder.
  • the needle holder points at its end facing away from the needle two pins on. These pins protrude beyond the needle holder.
  • one end of the pins can be inserted into a carrier.
  • a holding plate is attached, so that the needle holder can be held in position.
  • the pins simultaneously cause a distance between the support plate and the holding plate.
  • a similar embodiment of a guide needle assembly is made EP 1 301 305 A1 known.
  • the guide needle units are arranged between two plates and engage there with projections in slots. Accordingly, the same problem arises when replacing a guide needle assembly.
  • the invention has for its object to enable easy assembly of the guide needle units on the carrier.
  • This object is achieved in a guide needle assembly of the type mentioned in that the alignment flags have different distances relative to a footprint of the head on the carrier.
  • the head is held not only at two longitudinally spaced-apart positions. These two positions also have different distances to a footprint of the head on the carrier, so that the head can be secured in a simple manner against tilting of the guide needle unit relative to the carrier. If the alignment flags have been introduced into corresponding recesses on the carrier, the guide needle unit is mounted in a practically aligned manner and then only has to be determined in a suitable manner.
  • the Ausrichtfahnen can be formed with a relatively small mass, because the forces acting on the guide needle units tilting moments are relatively small. Accordingly, the mass of the guide needle assembly can be kept relatively small overall, which has a favorable effect on the performance of the jacquard guide bar.
  • the first alignment tab adjacent to the footprint faces toward a needle head and the second alignment tab further away from the footprint faces away from the needle head.
  • the two alignment flags are diagonally on the head, so to speak arranged, wherein the inclination of the diagonal points to the needle head.
  • the receptacle has a first section for the first alignment tab and a second section for the second alignment tab, wherein the second section forms a continuation of the first section and both alignment tabs have the same thickness. So you can make the two sections of recording in one operation, for example, by a side milling cutter. This also ensures that the two sections of the recording have the desired orientation to each other. With the insertion of the guide needle unit, in which the two alignment flags are inserted into the two sections of the recording, then a reliable alignment of the guide needle unit is ensured.
  • the first portion has a depth that is less than the height of the head. So the first section can be relatively flat. This has the consequence that also the carrier in this area can have a relatively small thickness. This in turn is from Advantage, because it allows you to keep the mass of the carrier small.
  • the securing against the tilting of the guide needle unit also does not take place in the region of the first section of the receptacle, but only in the region of the second section of the receptacle.
  • the carrier can then have a greater height, but this is not critical, because this greater height may be limited to a smaller portion of the carrier.
  • the head protrudes with a projection on the offset drive in the direction of the carrier and the depth of the first portion is smaller than the supernatant.
  • the Ausrichtfahne forms a part of the head. This makes it possible to arrange the offset drive with a sufficient distance from the carrier, so that the offset drive without obstruction by the carrier, the guide needle or the portion of the guide needle unit that carries the guide needle moves.
  • the alignment flags have a smaller thickness than the head. You can then put the head on both sides of the Ausrichtfahne that is inserted into the first section of the recording on the support, so that here is a defined footprint is given. This footprint also has a sufficient size so that the head can stand up with the necessary accuracy on the support.
  • the head has a projection geometry pointing towards the needle head, which has an undercut geometry engages the carrier. If the projection geometry has come into engagement with the undercut geometry, then the head and thus the guide needle unit can no longer be lifted off the carrier. At this point, then the guide needle unit is positively held on the carrier.
  • the engagement geometry and the undercut geometry preferably have mutually adapted inclined surfaces.
  • the carrier on the side facing away from the needle head side of the head on an abutment and a removable clamping element is disposed between the abutment and the head.
  • the head With the help of the clamping element, the head can then be braced relative to the abutment.
  • the engagement geometry and the undercut geometry can be ensured by mounting or clamping the clamping element that the guide needle unit is permanently attached to the carrier, this attachment by disassembly or release of the clamping element is releasable again.
  • clamping element acts on a wedge surface on the head. This also turns the head on the side facing away from the needle head with a certain force pressed against the carrier.
  • the clamping means is designed as an eccentric pin.
  • An eccentric pin can act on several needle units simultaneously. It can be passed unhindered in a first rotational position between the abutment and the heads of the guide needle units. If it covers all provided needle units, it is simply rotated and then braces the needle assemblies against the abutment.
  • the head has a hook into which a control board is inserted.
  • the hook then ensures positioning of the control board relative to the head.
  • contacts preferably spring contacts, provided which abut contact surfaces of the control board and accomplish a connection between the control board and the offset drive or the offset drives.
  • the individual offset drives of the guide needles can then be controlled via the control board.
  • Fig. 1 shows a guide needle assembly 1 with a plurality of guide needles 2.
  • the guide needles 2 are attached to needle holders 3.
  • Each guide needle holder is provided with at least one offset drive 4, wherein only the outer offset drive 4 of the outer needle holder 3 in Fig. 1 can be seen.
  • the guide needle holder 3 will be provided on its two flat sides with offset drives 4, so that a deflection of the guide needle 2 in the offset direction in both directions is possible.
  • the offset direction is the direction in which the needle heads 5 of all guide needles 2 are arranged one behind the other.
  • the movement of the guide needles 2 in the offset direction, which is controlled by the offset drives 4 is limited by stops 6.
  • the stops 6 are arranged on a carrier 7.
  • the guide needles 2 are part of a guide needle unit 8.
  • Each guide needle unit has in addition to the guide needles 2, the guide needle holders 3 and the offset drives 4 and a head 9 at the end remote from the guide needles 2 of the guide needle unit 8. This head 9 is in the 3 and 4 shown in more detail.
  • the head 9 has a first alignment lug 10 and a second alignment lug 11. Both Ausrichtfahen 10, 11 have seen in the offset direction has a smaller thickness than the head 9.
  • the head has a footprint 12, with which it rests on the support 7 in the installed state.
  • the first Ausrichtfahne 10 has a smaller distance to the footprint 12 than the second Ausrichtfahne 11. Relative to the head, the two Ausrichtfahen 10, 11 arranged so to speak diagonally.
  • the carrier has a receptacle with a first section 13 and a second section 14 for each guide needle unit.
  • first section 13 the first Ausrichtfahne 10 is used when the guide needle unit 8 is mounted on the carrier 7.
  • second section 14 the second Ausrichtfahne 11 is used when the guide needle unit 8 is mounted on the carrier 7.
  • Fig. 8 it can be seen, are the two sections 13, 14 aligned exactly to one another, that is arranged on a straight line.
  • the two Ausrichtfahnen 10, 11 have the same thickness.
  • the guide needle unit 8 is mounted on the support 7 such that the two alignment lugs 10, 11 are inserted into the two sections 13, 14 of the receptacle, then the guide needle unit is exactly aligned.
  • the alignment of the two sections 13, 14 relative to each other can be achieved in a simple manner by making the two sections 13, 14 in one operation, for example by a side milling cutter.
  • the head 9 is thicker in the offset direction than the two Ausrichtfahen 10, 11. Accordingly, it is possible to provide on the head 9 on both sides of the first Ausrichtfahne 10 to the needle head 5 facing outward projection geometry 15 with an inclined surface 16, with a corresponding undercut geometry 17 on the support with a corresponding inclined surface 18 engages when the guide needle unit 8 is mounted on the carrier 7. If then the guide needle unit 8 is moved in the direction of the needle head 5, then pull the two inclined surfaces 16, 18 the head 9 in the direction of the carrier 7, so that a very precise positioning of the head 9 and thus the guide needle unit 8 on the carrier. 7 receives.
  • the second portion 14 of the receptacle is arranged on a projection 19 of the carrier, which simultaneously forms an abutment 20 on which a eccentric pin 21st trained clamping device can be brought to bear in order to push the head 9 with its projection geometry 15 in the undercut geometry 17 on the carrier 7.
  • the eccentric pin 21 has a flattened side 22. If this flattened side 22 faces the head 9, then the eccentric pin 21 can be passed between the abutment 20 and the head 9. By twisting the eccentric pin 21 is then a bracing of the head 9 relative to the abutment 20. This is again in Fig. 7 shown.
  • Fig. 2 is the head 9 on the offset drive 4 in the direction of the carrier 7 before.
  • the first portion 13 of the receptacle has a depth which is smaller than the projection of the head 9 via the offset drive 4. Accordingly, it is possible in a simple manner to produce a sufficient distance between the offset drive 4 and the carrier 7, so that the offset drive 4 can move the guide needle holder 3 without being disturbed by the carrier 7.
  • the contacts 23, 24 are working contacts for two offset drives 4 of a guide needle unit 8.
  • the contact 25 is a ground contact. All contacts 23-25 are designed as spring contacts.
  • the offset drives 4 are supplied with the required electrical power via these contacts 23-25 in order to activate the offset drives 4.
  • the head 9 has a window 26, through which the contacts 23-25 are accessible, so that they can be easily replaced if necessary.
  • the control board 27 has, on its side facing the carrier 7, three contact surfaces 29-31 for each guide needle unit, which contact the contacts 23-25 when the control board 27 is mounted.
  • the control board 27 has controls 32 which are connected to the contact surfaces 29-31 and - if necessary - prepare signals which are supplied via the line 28.
  • the head 9 has a hook 33, into which the control board 27 can be used for mounting after the guide needle units are mounted on the carrier 7.
  • the control board 27 can then be pivoted in the hook on the contacts 23-25 and then secured with a screw 34 on the carrier 7.
  • the control board 27 then additionally serves as a holder for the leader needle units 8 on the carrier 7.
  • the head 9 has at its the abutment 20 facing the end of a wedge surface 35, which may also be rounded. In this wedge surface 35 of the eccentric pin 21 acts.
  • the guide needle assembly 1 is expediently first removed from the jacquard guide bar. After loosening the screw 34, the control board 27 can then be pivoted first and thus removed from the contacts 23-25. The removed control board 27 can then be tested for functionality.
  • each guide needle unit 8 can be removed independently of other guide needle units 8 from the carrier 7.
  • Each guide needle unit 8 can then be tested outside the carrier 7 by itself. If a guide needle unit 8 is defective, the other guide needle units 8 need not be replaced with the same, resulting in a cost-effective repair option.
  • the installation of the guide needle units 8 takes place in the reverse order.
  • the guide needle unit 8 is attached to the carrier 7 in such a way that the first Ausrichtfahne 10 enters the first section 13 and the second Ausrichtfahne 11 in the second portion 14 of the recording.
  • the guide needle unit 8 side ie in the offset direction, already set and secured against tilting.
  • the guide needle unit 8 is then displaced along its longitudinal direction, so that the projection geometry 15 engages with the undercut geometry 17.
  • the footprint 12 is then firmly on the support 7, so that the guide needle unit 8 is precisely positioned in the height direction.
  • the eccentric pin 21 is inserted and tensioned.
  • all of the needle assemblies 8 are mechanically fixed to the carrier 7.
  • the control board 27 is inserted into the hooks 33 and pivoted to the contacts 23-25 and fixed with the screw 34 on the carrier 7.
  • all electrical contacts for supplying the offset drives 4 are made.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Measuring Leads Or Probes (AREA)

Claims (12)

  1. Agencement d'aiguilles à passettes (1) pour une barre à passettes Jacquard avec un support (7) et avec plusieurs unités d'aiguilles à passettes (8) pouvant être enlevées individuellement du support (7), chaque unité d'aiguilles à passettes (8) comportant au moins un entraînement de déplacement (4) et une tête (9), le support (7) comportant pour chaque unité d'aiguilles à passettes (8) un logement avec un premier tronçon (13) et avec un deuxième tronçon (14) et la tête (9) comportant à une extrémité, vue dans le sens de la longueur de l'unité d'aiguilles à passettes (8), un premier drapeau d'alignement (10) et à l'autre extrémité un deuxième drapeau d'alignement (11), lesquels sont placés respectivement dans les tronçons (13, 14) du logement, caractérisé en ce que les drapeaux d'alignement (10, 11) sont à des distances différentes par rapport à une surface de contact (12) de la tête (9) sur le support (7).
  2. Agencement d'aiguilles à passettes selon la revendication 1, caractérisé en ce que le premier drapeau d'alignement (10) qui est proche de la surface de contact (12) est dirigé vers une tête d'aiguille (5) et le deuxième drapeau d'alignement (11) qui est plus éloigné de la surface de contact (12) est dirigé à l'opposé de la tête d'aiguille (5).
  3. Agencement d'aiguilles à passettes selon la revendication 1 ou 2, caractérisé en ce que le logement comporte un premier tronçon (13) pour le premier drapeau d'alignement (10) et un deuxième tronçon (14) pour le deuxième drapeau d'alignement (11), le deuxième tronçon (14) formant un prolongement du premier tronçon (13), les deux tronçons (13, 14) étant agencés sur une ligne droite et les deux drapeaux d'alignement (10, 11) ayant la même épaisseur.
  4. Agencement d'aiguilles à passettes selon la revendication 3, caractérisé en ce que le premier tronçon (13) a une profondeur qui est inférieure à la hauteur de la tête (9).
  5. Agencement d'aiguilles à passettes selon la revendication 4, caractérisé en ce que la tête (9) dépasse avec une partie en saillie en avant de l'entraînement de déplacement (4) dans la direction du support (7) et la profondeur du premier tronçon (13) est inférieure à la partie en saillie.
  6. Agencement d'aiguilles à passettes selon l'une des revendications 1 à 5, caractérisé en ce que les drapeaux d'alignement (10, 11) ont, dans la direction de déplacement, une épaisseur plus petite que celle de la tête (9).
  7. Agencement d'aiguilles à passettes selon l'une des revendications 1 à 6, caractérisé en ce que la tête (9) présente une géométrie de partie en saillie (15) qui est dirigée vers la tête d'aiguille (5) et qui vient en prise avec une géométrie de contre-dépouille (17) sur le support (7).
  8. Agencement d'aiguilles à passettes selon la revendication 7, caractérisé en ce que la géométrie de prise (15) et la géométrie de contre-dépouille (17) comportent des surfaces biseautées (16, 18) adaptées l'une à l'autre.
  9. Agencement d'aiguilles à passettes selon l'une des revendications 1 à 8, caractérisé en ce que le support (7) comporte une butée (20) sur le côté, éloigné de la tête d'aiguille (5), de la tête (9) et en ce qu'un élément de tension (21) démontable est agencé entre la butée (20) et la tête (9).
  10. Agencement d'aiguilles à passettes selon la revendication 9, caractérisé en ce que l'élément de tension (21) agit sur une surface en coin (35) sur la tête (9).
  11. Agencement d'aiguilles à passettes selon la revendication 9 ou 10, caractérisé en ce que le moyen de tension (21) est conçu comme une broche excentrique.
  12. Agencement d'aiguilles à passettes selon l'une des revendications 1 à 11, caractérisé en ce que la tête (9) comporte un crochet (33) dans lequel est placée une plaque de commande (27).
EP10009427.5A 2010-09-10 2010-09-10 Agencement d'aiguille d'alimentation pour une barre d'alimentation à jacquard Not-in-force EP2428601B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10009427.5A EP2428601B1 (fr) 2010-09-10 2010-09-10 Agencement d'aiguille d'alimentation pour une barre d'alimentation à jacquard
CN201010587366.5A CN102400280B (zh) 2010-09-10 2010-12-10 用于提花梳栉的一种梳栉针装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10009427.5A EP2428601B1 (fr) 2010-09-10 2010-09-10 Agencement d'aiguille d'alimentation pour une barre d'alimentation à jacquard

Publications (2)

Publication Number Publication Date
EP2428601A1 EP2428601A1 (fr) 2012-03-14
EP2428601B1 true EP2428601B1 (fr) 2015-10-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP10009427.5A Not-in-force EP2428601B1 (fr) 2010-09-10 2010-09-10 Agencement d'aiguille d'alimentation pour une barre d'alimentation à jacquard

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EP (1) EP2428601B1 (fr)
CN (1) CN102400280B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105624912B (zh) * 2015-12-25 2017-12-29 江南大学 一种导电型经编贾卡梳栉
CN114108175B (zh) * 2021-08-17 2022-12-20 福建杰嘉科技有限公司 一种方便安装的无线贾卡提花装置及经编机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19613385C2 (de) 1996-04-03 2001-08-23 Liba Maschf Kettenwirkmaschine mit mindestens einer Busleitungen aufweisenden Legebarre
DE19654327C1 (de) * 1996-12-24 1998-04-16 Mayer Textilmaschf Hubsteuervorrichtung für Kettenwirkmaschinen
DE10066042B4 (de) * 2000-08-23 2004-12-02 Karl Mayer Textilmaschinenfabrik Gmbh Kettenwirkmaschine mit mehreren Musterlegebarren
KR100497025B1 (ko) * 2000-09-27 2005-06-23 닛폰 마이야 가부시키가이샤 경편기의 자카드 장치
JP2006241608A (ja) * 2005-03-01 2006-09-14 Nippon Mayer Ltd 伸縮性経編地の編成方法及び該編成方法に用いるジャカードガイド
IT1391730B1 (it) * 2008-11-26 2012-01-27 Santoni & C Spa Dispositivo di connessione per attuatori piezoelettrici di barre jacquard di macchine tessili
CN101603242B (zh) * 2009-07-23 2011-04-06 王占洪 用于贾卡经编机的贾卡针块组件

Also Published As

Publication number Publication date
CN102400280B (zh) 2015-01-28
EP2428601A1 (fr) 2012-03-14
CN102400280A (zh) 2012-04-04

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