EP2025786A1 - Barre für eine Kettenwirkmaschine - Google Patents

Barre für eine Kettenwirkmaschine Download PDF

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Publication number
EP2025786A1
EP2025786A1 EP08002624A EP08002624A EP2025786A1 EP 2025786 A1 EP2025786 A1 EP 2025786A1 EP 08002624 A EP08002624 A EP 08002624A EP 08002624 A EP08002624 A EP 08002624A EP 2025786 A1 EP2025786 A1 EP 2025786A1
Authority
EP
European Patent Office
Prior art keywords
plastic
bar
application
adhesive
needle
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.)
Withdrawn
Application number
EP08002624A
Other languages
German (de)
English (en)
French (fr)
Inventor
Kresimir Mista
Günter Schuler
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
Publication of EP2025786A1 publication Critical patent/EP2025786A1/de
Withdrawn legal-status Critical Current

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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
    • D04B27/06—Needle bars; Sinker bars
    • 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
    • D04B15/20—Needle bars
    • 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

Definitions

  • the invention relates to a bar for a warp knitting machine with a body having carbon fiber reinforced plastic material and a needle holder.
  • the invention also relates to a method for producing a bar of a warp knitting machine, in which a body, the carbon fiber reinforced plastic material is provided with a needle holder.
  • a barre that is used in a warp knitting machine usually has to be accelerated at least once in one working cycle and at least once in the opposite direction of effect. In order to keep the forces necessary for accelerating small, it is therefore anxious to keep the mass of the bar small. At the same time you want to achieve a high mechanical stability. It is therefore proposed for some years before the use of ingots, which has a body carbon fiber reinforced plastic. Plastic material reinforced with carbon fibers has a relatively low weight and relatively good mechanical stability.
  • the bar carries needles that are necessary for carrying out the knitting process. These may be, for example, punch needles that are used to produce the alloys.
  • the needle holder is provided.
  • the needle holder is formed in a glued to the body metal strip.
  • the problem here is that the metal has a different thermal expansion than the body.
  • the production of such a bar is difficult.
  • the strip having the needle receptacle has to be manufactured to the exact dimensions and then adhered to the body in exact position. It should be noted that there is a uniform adhesive layer and no air bubbles are trapped. Both parts must be clean and free of grease.
  • the bar has a relatively weakly dimensioned bar foot, so that the bar is a very sensitive part. There is therefore a significant risk that the bar will twist during handling. This can cause additional difficulties when adhering to the body.
  • Another disadvantage is that the sticking process requires a considerable manual skill. This is not at all Persons involved in the manufacture of such a bar.
  • the invention has for its object to produce a bar for a warp knitting machine easily and inexpensively.
  • the plastic coating is formed of a plastic which is tacky in the uncured state.
  • this bonding takes place during curing.
  • you can edit a cured plastic adhesive relatively easily. The strength of the cured plastic adhesive is large enough to hold the needles in place. It should be noted that act on a single needle only limited forces.
  • the needle receiving slots which are milled into the plastic application. Milling is a relatively inexpensive process to make the slots. For example, you can use this Scheibenfräser.
  • the needle receptacle on two parallel led beads. This makes it possible to hold each needle at two points spaced from each other. As a result, the needle is reliably supported in the bar, so that they can not move laterally during a kneading process despite the lateral forces occurring. At the same time but the Material consumption kept small, so that the mass of the barre remains small.
  • the beads are separated from each other. This allows relatively large distances between the attachment points realize.
  • the plastic application is formed by a two-component adhesive.
  • a two-component adhesive does not begin to cure until the two components have been joined together.
  • a two-part adhesive can also be adjusted to cure relatively quickly. For the production of the bar you need then correspondingly little time.
  • the plastic application is formed by a polyurethane-based plastic.
  • a polyurethane-based plastic is mechanically stable enough, on the other hand, does not contribute significantly to an increase in the mass of the bar.
  • the object is achieved in a method of the type mentioned in that a plastic application is applied to the body and slots are introduced into the plastic application.
  • an adhesive or adhesive has the advantage that the plastic coating virtually connects itself to the body during application. An additional step to connect the plastic application with the body is therefore not required.
  • a recess is formed parallel to the longitudinal direction of the bar in the center of the plastic coating. This ensures that each needle can be supported on two spaced apart in the longitudinal direction of the needle points. Overdetermination when holding the needle in the bar is therefore prevented. At the same time you make sure that you do not need any additional material here. As a result, the mass of the barre is kept small.
  • At least two parallel plastic caterpillars are applied to the body. This is a particularly easy way to create a depression in the middle of the plastic application. The depression is simply created by not applying plastic between the parallel plastic caterpillars.
  • the plastic is ejected from a nozzle arrangement.
  • the plastic compound used to produce the plastic application has the right consistency, you can produce any cross-section with a nozzle in a single operation.
  • a pneumatic or hydraulic dosing device and with an automatic feed any length uniform cross-sections can be made.
  • a corresponding nozzle shape it is possible to bring the cross-section of the plastic application into the optimum shape, for example by producing the above-mentioned depression.
  • a nozzle arrangement with a plurality of outlet openings is used. This is particularly advantageous if you want to apply two or more parallel plastic caterpillars on the body.
  • a two-component adhesive is used as a plastic application.
  • the adhesive may for example be formed from a synthetic resin. It is then prepared so that it hardens at the right time, namely after application to the body. Because a two-component adhesive can be adjusted If it can cure relatively quickly, one can keep the production time relatively short.
  • a polyurethane-based adhesive is used as a plastic application.
  • Such an adhesive combines with sufficient stability with the body of carbon fiber reinforced plastic material. In addition, it ensures the necessary mechanical stability for holding the needles.
  • the needle bar 1 has a body 3 made of a carbon fiber reinforced plastic material, which encloses a cavity 4 and is provided with fastening means 5 to fix the bar 1 in a knitting machine (not shown in detail).
  • the knitting needles 2 are arranged in a needle holder 6 and held there by a cover 7.
  • the lid 7 is connected by a bolt 8 with the body 3.
  • several such bolts 8 are provided over the length of the bar 1.
  • a slot 9 is present.
  • This slot is formed in a plastic coating 10, in which the needle holder 6 is formed.
  • the plastic coating 10 is formed by a plastic which is tacky in the uncured state, in particular an adhesive with two or more components, which is formed as a synthetic resin or polyurethane-based.
  • the plastic application is expediently applied with a pneumatic or hydraulic or otherwise operated metering device. If the dosing device and the body 3 are moved by an automatic feed relative to each other, then you can produce any length of uniform cross-sections of the plastic coating 10.
  • the application of the adhesive is expediently carried out by a nozzle arrangement.
  • a nozzle shape By choosing the nozzle shape, it is possible to bring the cross section of the plastic coating 10 in virtually any shape. So you can, such as in Fig. 3 shown to produce a plastic coating 10 so that it has two parallel beads 11, 12, between which a recess 13 is arranged.
  • the plastic coating 10 When the plastic coating 10 is applied to the body 3, the plastic, as stated above, is still sticky. It therefore connects to the plastic material of the body 3 without the need for an additional machining or handling step. In general, the plastic order 10 can be produced in one operation.
  • the components are conveniently mixed just prior to application of the plastic coating 10.
  • the glue is then adjusted so that the curing time is short, so that the preparation of the needle holder 6 does not require much extra time.
  • the slots 9 can be milled.
  • the knitting needles 2 are then supported at two positions along their length, so that they are not pivoted against the body 3 even when lateral forces occur. Through the recess 13 or the gap 14 between the beads 11, 12 is achieved beyond a material savings.
  • the plastic of the plastic coating 10 can be processed better than the carbon fiber reinforced plastic material of the body 3, since the plastic application is preferably free of reinforcing fibers. Accordingly the wear of a tool when making the slots 9 is also kept small.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Looms (AREA)
EP08002624A 2007-08-16 2008-02-13 Barre für eine Kettenwirkmaschine Withdrawn EP2025786A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007038589.9A DE102007038589B4 (de) 2007-08-16 2007-08-16 Barre für eine Kettenwirkmaschine

Publications (1)

Publication Number Publication Date
EP2025786A1 true EP2025786A1 (de) 2009-02-18

Family

ID=40120304

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08002624A Withdrawn EP2025786A1 (de) 2007-08-16 2008-02-13 Barre für eine Kettenwirkmaschine

Country Status (5)

Country Link
EP (1) EP2025786A1 (zh)
KR (1) KR100972341B1 (zh)
CN (1) CN101368316B (zh)
DE (1) DE102007038589B4 (zh)
TW (1) TWI357942B (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103132228A (zh) * 2013-03-15 2013-06-05 常德纺织机械有限公司 一种用于经编机的槽针床
EP3354782A1 (de) 2017-01-25 2018-08-01 Karl Mayer Textilmaschinenfabrik GmbH Wirkwerkzeugbarre und verfahren zum montieren von wirkwerkzeugen

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010045049B4 (de) 2010-09-10 2012-10-04 Karl Mayer Textilmaschinenfabrik Gmbh Verfahren zum Herstellen einer Wirkwerkzeugbarre
DE102012007109B4 (de) * 2012-03-07 2014-08-28 Karl Mayer Textilmaschinenfabrik Gmbh Wirkwerkzeugbarre und Verfahren zum Herstellen einer Wirkwerkzeugbarre
CN103266411A (zh) * 2013-05-28 2013-08-28 马骏 一种嵌入型可拆卸活动主针针夹及针块
DE102014105182A1 (de) * 2014-04-11 2015-10-15 TRüTZSCHLER GMBH & CO. KG Fixkamm für eine Kämmmaschine
EP3009550B1 (de) * 2014-10-14 2019-03-13 Karl Mayer Textilmaschinenfabrik GmbH Wirknadel und Nadelbarre
EP3421653B1 (de) 2017-06-26 2019-09-18 KARL MAYER Textilmaschinenfabrik GmbH Wirkwerkzeugbarre

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3823581A (en) * 1973-02-02 1974-07-16 C Russo Knitting machine needle holder
DE3840531C1 (de) * 1988-12-01 1990-05-10 Mayer Textilmaschf Kettenwirkmaschine mit mindestens einer Barre
EP0806507A2 (de) 1996-05-08 1997-11-12 KARL MAYER TEXTILMASCHINENFABRIK GmbH Anordnung aus Fadenverarbeitungselementen einer Kettenwirk- oder Strickmaschine und einem Träger
DE19920673A1 (de) 1999-05-05 2000-11-16 Kern & Liebers Platinen-Segment
EP1600543A1 (de) 2004-05-27 2005-11-30 KARL MAYER TEXTILMASCHINENFABRIK GmbH Wirkwerkzeug-Barre

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10348557B3 (de) * 2003-10-20 2005-06-30 Liba Maschinenfabrik Gmbh Barre einer Wirkmaschine, insbesondere Kettenwirkmaschine
EP1770193B1 (de) * 2005-09-28 2011-01-12 Karl Mayer Textilmaschinenfabrik GmbH Wirkmaschinen-Barre und Verfahren zum Herstellen einer Wirkmaschinen-Barre

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3823581A (en) * 1973-02-02 1974-07-16 C Russo Knitting machine needle holder
DE3840531C1 (de) * 1988-12-01 1990-05-10 Mayer Textilmaschf Kettenwirkmaschine mit mindestens einer Barre
EP0806507A2 (de) 1996-05-08 1997-11-12 KARL MAYER TEXTILMASCHINENFABRIK GmbH Anordnung aus Fadenverarbeitungselementen einer Kettenwirk- oder Strickmaschine und einem Träger
DE19920673A1 (de) 1999-05-05 2000-11-16 Kern & Liebers Platinen-Segment
EP1600543A1 (de) 2004-05-27 2005-11-30 KARL MAYER TEXTILMASCHINENFABRIK GmbH Wirkwerkzeug-Barre

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103132228A (zh) * 2013-03-15 2013-06-05 常德纺织机械有限公司 一种用于经编机的槽针床
EP3354782A1 (de) 2017-01-25 2018-08-01 Karl Mayer Textilmaschinenfabrik GmbH Wirkwerkzeugbarre und verfahren zum montieren von wirkwerkzeugen

Also Published As

Publication number Publication date
KR100972341B1 (ko) 2010-07-26
DE102007038589A1 (de) 2009-02-26
CN101368316A (zh) 2009-02-18
DE102007038589B4 (de) 2014-02-20
CN101368316B (zh) 2011-08-03
KR20090017965A (ko) 2009-02-19
TW200912067A (en) 2009-03-16
TWI357942B (en) 2012-02-11

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