EP2623652A1 - Barre d'outils de tricotage et procédé de production d'une barre d'outils de tricotage - Google Patents

Barre d'outils de tricotage et procédé de production d'une barre d'outils de tricotage Download PDF

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Publication number
EP2623652A1
EP2623652A1 EP12000593.9A EP12000593A EP2623652A1 EP 2623652 A1 EP2623652 A1 EP 2623652A1 EP 12000593 A EP12000593 A EP 12000593A EP 2623652 A1 EP2623652 A1 EP 2623652A1
Authority
EP
European Patent Office
Prior art keywords
segment
longitudinal direction
knitting tool
segments
knitting
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Withdrawn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
EP12000593.9A
Other languages
German (de)
English (en)
Inventor
Günter Schuler
Steffen Kaufhold
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 EP12000593.9A priority Critical patent/EP2623652A1/fr
Priority to CN201210138840.5A priority patent/CN103225164B/zh
Publication of EP2623652A1 publication Critical patent/EP2623652A1/fr
Withdrawn legal-status Critical Current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
    • D04B27/10—Devices for supplying, feeding, or guiding threads to needles
    • D04B27/24—Thread guide bar assemblies
    • 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

Definitions

  • the invention relates to a knitting tool bar having a body which has a longitudinal direction, and a knitting tool holder attached to the body.
  • a knitting machine generally has a plurality of knitting tool bars. Knitting tools are attached to each knitting tool bar.
  • Knitting tools is meant, in general, all tools involved in working on a knitting operation. These include, for example, knitting needles, guide needles, Abtschkammplatinen, Polplatinen and the like.
  • a knitting machine often has a working width of several meters. Within this working width, the knitting tools must be arranged with a predetermined pitch. This division must also be maintained during operation in order to prevent a collision of different impact tools.
  • One problem with this is that the knitting machine is exposed to temperature changes. Changes in temperature can result in changes in length of machine elements that expand when the temperature increases.
  • the knitting tool holder is often formed from a metal. Metal expands at a temperature increase, so that the knitting tool receptacle gets a greater length, and contracts at a temperature drop. Even if the changes in length are not great, they can still lead to a knitting tool bar with a total length of several meters cause the knitting tools no longer work together in the desired manner, but collide.
  • the slot strip has receiving grooves for receiving the knitting tools.
  • the material thickness of the slot strip between the bottom of the grooves and the bearing surface on the body should be so small that expansion and compression forces, which are based on heating during operation of the knitting machine, are absorbed as thrust or compressive stress in the area of the contact surface and thus a Length change of the slot strip is avoided.
  • the invention has for its object to provide a temperature insensitive knives bar.
  • This object is achieved with a knitting tool bar of the type mentioned above in that the knitting tool receptacle is divided in the longitudinal direction into several segments and each segment is fixed at a single position in the longitudinal direction on the body.
  • the knitting tool holder Since the knitting tool holder is subdivided into several segments, a temperature change merely leads to the length of a single segment changes. Since the absolute change in length of a segment depends on the length of the segment, the absolute change in length can accordingly be kept short if the segments are short.
  • the segments have a maximum length of 3 inches, preferably at most 2 inches, and most preferably at most 1 inch. The change in length of the segments can be done without affecting the body of the knitting tool bar. This is achieved by longitudinal attachment of the segment only at a single position.
  • the segment may expand or contract without transferring forces to the body and thereby creating shear or compressive stresses between the segment and the body.
  • the only position in the longitudinal direction has virtually no extension. It is obvious that this is not achievable in reality.
  • the position at which the segment is fixed to the body has only an extension in the longitudinal direction, which is so small that a change in length of the segment within this extension is negligible.
  • the position has for example an extension in the longitudinal direction in the order of a few millimeters, for example an extension of 3 to 10 mm, preferably 4 to 8 mm and particularly preferably 5 to 7 mm.
  • At least one segment is fixed in the region of its center in the longitudinal direction on the body.
  • the segment will then be able to expand on both sides of its midst at a temperature increase, without the body of the active tool bar to apply shear stresses.
  • the change of a position of a knitting tool, which is arranged at the end of the segment, can then be kept correspondingly small.
  • the knitting tool receiving grooves and a parting line between adjacent segments is provided in each case at the edge of a groove.
  • the grooves serve to receive impact tools.
  • Each groove then has a continuous bottom or groove bottom in the longitudinal direction, which serves to support the knitting tool. This also applies to the groove provided at the end of the segment.
  • the parting line can be kept relatively small because it only needs to absorb the change in length of a single segment, which, as stated above, can be kept small.
  • At least one segment is fixed by a form fit on the body.
  • a positive connection is a relatively simple measure to hold the segment in the longitudinal direction.
  • the body has a recess into which protrudes a projection of the segment.
  • the projection in the recess ensures that the segment can be displaced in the longitudinal direction relative to the body.
  • the recess has a depth of at most 1 mm.
  • the recess is therefore relatively flat, so that the body through the recess in his mechanical properties, in particular its stability is not impaired.
  • the projection has a greater extent transversely to the longitudinal direction than in the longitudinal direction. This automatically results in a rotation.
  • the segment can also be positioned in a predetermined orientation on the body by the cooperation of projection and depression.
  • At least one segment is fixed to the body by a material connection.
  • the material bond can be, for example, an adhesive bond or a welded joint.
  • only a pointwise connection between the segment and the body takes place.
  • the body has a layer with a smooth surface on which the segments rest outside their fixation. If the segments change their length due to a temperature change, then they slide outside of the fixation on the smooth-surfaced layer, thereby avoiding shear stresses.
  • At least one segment is formed predominantly of a metal.
  • a metal results in a high mechanical stability for the knitting tool holder. Since a metal has a temperature-dependent length, it is particularly well suited for use in the described active tool bar, because here length changes of the segment does not affect the body of the bar in shear stresses.
  • At least one segment is formed predominantly of a ceramic material.
  • a ceramic material has a relatively low thermal expansion. Since only a single connection between each segment and the body is required, the cost of the connection is kept small here.
  • At least one segment is formed predominantly of a plastic, in particular a fiber-reinforced plastic.
  • a segment can also be connected in the manner described with the body of the Wirkwerkmaschinebarre.
  • the invention also relates to a method for producing a knitting tool bar, in which a knitting tool holder is applied to a body which has a longitudinal direction and fixed there.
  • the above object is achieved by dividing the knitting tool holder into segments and fixing each segment only at one longitudinal position on the body.
  • the segments can be outside
  • the fixation on the body which is limited to a single position, change their length, without that shear stresses are connected to the body.
  • the segments are produced after fixing the active tool receptacle on the body. So you attached a bar that forms the knitting tool holder on the body by connecting this bar at designated individual positions with the body. Thereafter, the bar is divided into segments, then it must be ensured that each segment has only a single fixation on the body.
  • Fig. 1 shows a knitting tool 1 with a body 2, which is formed of a carbon fiber reinforced plastic.
  • the body 2 has a longitudinal direction, which is symbolized by a double arrow 3. Longitudinal
  • the body 2 may well have a length of several meters. Accordingly, only a section of the active tool bar is shown. The drawing is not to scale.
  • Such a knitting tool bar serves to move a group of knitting tools similarly during an kneading process.
  • the effect tools may be knitting needles, guide needles, Polplatinen and the like.
  • a knitting tool holder 4 For receiving the knitting tools a knitting tool holder 4 is provided, which has in the longitudinal direction 3 side by side a plurality of webs 5 and grooves 6.
  • the grooves 6 are used to hold the knitting tools, not shown.
  • the width of the grooves 6 in the longitudinal direction corresponds to the thickness of the knitting tools. In order to use the knitting tools in the grooves 6, however, a small clearance is required.
  • the knitting tool holder 4 is divided into a plurality of segments 7, 8. Each segment 7, 8 is fixed only at a single position 9, 10 on the body.
  • each segment 7, 8 has a projection 11, 12, which projects into a recess 13, 14 which is formed on the body 2.
  • a layer 15 made of a plastic material is applied to the body 2 and glued to the body 2.
  • the layer 15 has practically the same thermal expansion behavior as the body 2.
  • the layer 15 has a surface 16 that is smooth.
  • the surface 16 has a lower roughness than the surface of the body 2.
  • Adjacent segments 7, 8 are separated by a parting line 17.
  • the parting line 17 is shown exaggerated here in order to make it visible at all.
  • the parting line 17 is provided in the longitudinal direction 3 at the edge of a groove 6.
  • each segment 7, 8 on the body 2 takes place approximately in the middle of the segment 7, 8 in the longitudinal direction 3.
  • a thermal expansion of a segment 7, 8 then takes place from this fixation in opposite directions in the longitudinal direction.
  • the recess 13, 14 and the projection 11, 12 have an extension transverse to the longitudinal direction 3, which is greater than an extension in the longitudinal direction 3. This results from the interaction of the projection 11, 12 with the recess 13, 14 and a rotation of the Segments 7, 8 with respect to the body 2.
  • the recess 13, 14 may have the shape of a groove which is rectangular in plan view. Accordingly, the projections 11, 12 may also have a rectangular base.
  • the recesses 13, 14 have a relatively small depth of a maximum of 1 mm. Accordingly short are the projections 11, 12. The length of the projections 11, 12 and the depth of the recesses 13, 14 may be so low because basically only one fixation in the longitudinal direction 3 must be made, which can already be done at a small level.
  • the segments 7, 8 themselves have an extension in the longitudinal direction 3, which is at most 3 inches, preferably at most 2 inches and more preferably at most 1 inch.
  • the absolute enlargement of a segment 7, 8 in the longitudinal direction 3 under the influence of a change in temperature can therefore be kept small. If there is a change in length, then each segment 7, 8 can expand on both sides of the position 9, 10 and thereby slide along the surface 16, without thereby shear stresses in the body 2 or the layer 15 are registered.
  • the length of the position 9, 10 in the longitudinal direction 3 is shown exaggerated here. You can limit this length to a few millimeters.
  • the position 9, 10 in the longitudinal direction 3 may have an extension in the range of 3 to 10 mm, in particular of 4 to 8 mm and particularly preferably of 5 to 6 mm.
  • Fig. 2 shows a modified embodiment, in which the same and corresponding elements are provided with the same reference numerals.
  • the fixation of the segment 7, 8 on the body 2 and the layer 15 is also carried out here only at a single position 9, 10. However, this fixation is carried out by a material connection.
  • Schematically represented here is an adhesive application 18, 19. With the adhesive of the adhesive application 18, 19, the respective segment 7, 8 is fixed to the body 2. For reasons of clarity, the adhesive application is exaggeratedly thick and exaggeratedly large in the longitudinal direction 3.
  • the segments 7, 8 may for example be formed from a metal. They can also be formed from a ceramic material or from a plastic material, in particular a fiber-reinforced plastic. In the latter case, the cohesive connection can also take place by welding the segment 7, 8 to the layer 15 or the body 2 at a single position 9, 10.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Moulding By Coating Moulds (AREA)
  • Knitting Machines (AREA)
EP12000593.9A 2012-01-31 2012-01-31 Barre d'outils de tricotage et procédé de production d'une barre d'outils de tricotage Withdrawn EP2623652A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12000593.9A EP2623652A1 (fr) 2012-01-31 2012-01-31 Barre d'outils de tricotage et procédé de production d'une barre d'outils de tricotage
CN201210138840.5A CN103225164B (zh) 2012-01-31 2012-04-23 成圈工具梳栉和用于生产成圈工具梳栉的方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12000593.9A EP2623652A1 (fr) 2012-01-31 2012-01-31 Barre d'outils de tricotage et procédé de production d'une barre d'outils de tricotage

Publications (1)

Publication Number Publication Date
EP2623652A1 true EP2623652A1 (fr) 2013-08-07

Family

ID=45654796

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12000593.9A Withdrawn EP2623652A1 (fr) 2012-01-31 2012-01-31 Barre d'outils de tricotage et procédé de production d'une barre d'outils de tricotage

Country Status (2)

Country Link
EP (1) EP2623652A1 (fr)
CN (1) CN103225164B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105369468A (zh) * 2015-12-16 2016-03-02 无锡吉进环保科技有限公司 一种燕尾结构的经编机针床
EP3587644A1 (fr) * 2018-06-22 2020-01-01 KARL MAYER Textilmaschinenfabrik GmbH Monture d'outil de tricotage
CN115142186A (zh) * 2021-03-31 2022-10-04 卡尔迈耶斯托尔研发有限公司 编织工具梳栉

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3636816B1 (fr) * 2020-02-17 2023-11-01 KARL MAYER STOLL R&D GmbH Procédé pour l'armure de la barre d'une machine à tricoter à mailles jetées avec des éléments de tricotage et un outil d'insertion
EP3757267B1 (fr) * 2020-11-06 2022-09-07 KARL MAYER STOLL R&D GmbH Barre pour les éléments de tricotage pour un métier à mailles jetées

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2428448A (en) * 1946-03-18 1947-10-07 Torrington Co Thread guide and mounting for tricot warp knitting
DE4302858C1 (de) * 1993-02-02 1994-06-01 Mayer Textilmaschf Verfahren zum Herstellen einer Nadelbarre
DE4441995C2 (de) * 1994-11-25 1997-12-11 Kern & Liebers Maschenbildendes Segment für eine Textilmaschine
DE10348557B3 (de) 2003-10-20 2005-06-30 Liba Maschinenfabrik Gmbh Barre einer Wirkmaschine, insbesondere Kettenwirkmaschine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4421388C2 (de) * 1994-06-18 1996-04-18 Mayer Textilmaschf Nadelbefestigungsvorrichtung für Wirkmaschinen
DE19854191B4 (de) * 1998-11-24 2008-02-21 Saxonia Textile Parts Gmbh Verfahren zum Verbinden von Nadelpaketen
DE102004023802B3 (de) * 2004-05-13 2005-12-22 Liba-Maschinenfabrik Gmbh Kettenwirkmaschine mit Bauelementen aus Kunststoffmaterial
ES2303001T3 (es) * 2004-05-27 2008-08-01 Karl Mayer Textilmaschinenfabrik Gmbh Barra de utiles de tricotar.
EP2230343B1 (fr) * 2009-03-19 2011-09-28 Karl Mayer Textilmaschinenfabrik GmbH Barre pour éléments de tricotage à mailles jetées
DE102009020028B4 (de) * 2009-05-05 2017-02-16 Karl Mayer Textilmaschinenfabrik Gmbh Kettenwirkmaschine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2428448A (en) * 1946-03-18 1947-10-07 Torrington Co Thread guide and mounting for tricot warp knitting
DE4302858C1 (de) * 1993-02-02 1994-06-01 Mayer Textilmaschf Verfahren zum Herstellen einer Nadelbarre
DE4441995C2 (de) * 1994-11-25 1997-12-11 Kern & Liebers Maschenbildendes Segment für eine Textilmaschine
DE10348557B3 (de) 2003-10-20 2005-06-30 Liba Maschinenfabrik Gmbh Barre einer Wirkmaschine, insbesondere Kettenwirkmaschine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105369468A (zh) * 2015-12-16 2016-03-02 无锡吉进环保科技有限公司 一种燕尾结构的经编机针床
EP3587644A1 (fr) * 2018-06-22 2020-01-01 KARL MAYER Textilmaschinenfabrik GmbH Monture d'outil de tricotage
TWI780330B (zh) * 2018-06-22 2022-10-11 德商卡爾邁耶斯托爾研發有限公司 針織工具安裝件之配置及其組裝方法
CN115142186A (zh) * 2021-03-31 2022-10-04 卡尔迈耶斯托尔研发有限公司 编织工具梳栉
EP4067546A1 (fr) 2021-03-31 2022-10-05 KARL MAYER STOLL R&D GmbH Barre d'outils de tricotage mailles jetees
CN115142186B (zh) * 2021-03-31 2023-10-10 卡尔迈耶斯托尔研发有限公司 编织工具梳栉

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Publication number Publication date
CN103225164B (zh) 2015-01-14
CN103225164A (zh) 2013-07-31

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