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EP4067546B1 - Barre d'outils de tricotage mailles jetees - Google Patents

Barre d'outils de tricotage mailles jetees Download PDF

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Publication number
EP4067546B1
EP4067546B1 EP21166460.2A EP21166460A EP4067546B1 EP 4067546 B1 EP4067546 B1 EP 4067546B1 EP 21166460 A EP21166460 A EP 21166460A EP 4067546 B1 EP4067546 B1 EP 4067546B1
Authority
EP
European Patent Office
Prior art keywords
longitudinal
transverse
segment
tool bar
projection
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
EP21166460.2A
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German (de)
English (en)
Other versions
EP4067546A1 (fr
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 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 EP21166460.2A priority Critical patent/EP4067546B1/fr
Priority to CN202210329949.0A priority patent/CN115142186B/zh
Publication of EP4067546A1 publication Critical patent/EP4067546A1/fr
Application granted granted Critical
Publication of EP4067546B1 publication Critical patent/EP4067546B1/fr
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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
    • 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 present invention relates to a knitting tool bar according to the preamble of claim 1.
  • Such a knitting tool bar is made, for example EP 2 623 652 A1 known.
  • the segments have grooves into which knitting tools can be inserted.
  • a segment extends in the longitudinal direction of the body by a maximum of 7.62 cm (three inches), preferably a maximum of 5.08 cm (2 inches) and in particular a maximum of 2.54 cm (one inch).
  • the interaction of the transverse formation and counter-transverse formation secures a position of the segment in the longitudinal direction of the body and thus the positions of the knitting tools accommodated in the grooves of the segment.
  • the individual segments can have a small distance from one another, so that the length of each segment can change under the influence of temperature without changing the positions of the knitting tools beyond a permissible level.
  • a knitting tool bar of a warp knitting machine is to be equipped with knitting tools or knitting tools of the knitting tool bar have to be exchanged, then a relatively complex alignment of the knitting tools is required. The time required to align the knitting tools is not available for the production of a knitted fabric and therefore reduces the productivity of the warp knitting machine.
  • a bar has a largely flat contact surface in which several wall surfaces are arranged in the form of bores.
  • a tool module with a module body can be brought into contact with the contact surface.
  • the module body has several pins protruding from the back, that can enter the bores.
  • the pins form contact surfaces which are separated from a contact surface arranged on the back of the module body by a groove.
  • the module body has a rectangular projection which can be brought into contact with the upper side of the bar.
  • U.S. 2,902,847 A describes a needle holder for a warp knitting machine.
  • a bar has a longitudinal groove into which a segment called a needle holder is inserted.
  • the needle holder carries multiple needles.
  • the needles are held in the needle holder by holding means formed by a spring plate.
  • the needle holder with the needles is clamped to the bar by a cover that is attached to the bar with a screw.
  • U.S. 6,116,173 A describes a module and a bar for tufting tools on which tufting needles are attached by being cast into a base body.
  • the base body has a T-shaped projection with a horizontal ridge and a vertical ridge.
  • the bar has a longitudinal groove from which transverse grooves extend.
  • the base body has two transverse grooves which are separated from one another by a projection, or the base body has a U-shaped recess on its upper side and a longitudinal groove in the region of its underside.
  • the U-shaped recess can also be replaced by an elongated hole.
  • GB 2 266 537 A shows modular elements of a tufting machine, thus does not disclose a knitting tool bar.
  • the tufting machine has two needle bars on which needle mounting blocks or gripper blocks or reed support blocks can be placed.
  • the respective blocks have on their rear side facing the needle bars T-shaped projections, of which a vertical web in a vertical groove on the Needle bars can occur while the horizontally extending web can rest on the underside or on the top of the respective needle bar.
  • the invention is based on the object of designing a knitting tool bar in such a way that a warp knitting machine can be operated with high productivity.
  • a longitudinal formation running in the longitudinal direction is provided in the contact surface, with at least one segment having a counter-longitudinal formation that interacts with the longitudinal formation.
  • the segment can then be positioned very precisely not only in the longitudinal direction in a simple manner.
  • the interaction of the transverse formation and counter-transverse formation is responsible for this positioning.
  • the segment is also positioned very precisely transversely to the longitudinal direction.
  • the interaction of longitudinal and counter-longitudinal shaping is responsible for this.
  • the knitting tools that are accommodated in the segment are then in turn positioned with a very high level of accuracy in the longitudinal and transverse directions of the bar, so that subsequent straightening can be carried out with less effort or, in the best case, can even be omitted entirely.
  • the longitudinal projection is designed as a longitudinal groove in the contact surface and the counter-longitudinal projection as a longitudinal projection on the segment.
  • the longitudinal projection then enters the longitudinal groove during assembly of the segment on the contact surface.
  • a longitudinal groove can be produced relatively easily during the manufacture of the body, particularly in the case of knitting tool bars whose body is formed from a fiber-reinforced plastic.
  • the transverse formation is designed as a transverse groove and the counter-transverse formation as a transverse projection on the segment. This is an easy way to form the two lofts.
  • the transverse projection is spaced a predetermined distance from the longitudinal projection. This also allows material to be saved within certain limits.
  • the segment preferably has a needle foot receptacle and the projection is arranged in the area of the needle foot receptacle.
  • the knitting tools that are held in the segment are designed as knitting needles, for example, they usually have a needle butt.
  • the needle butt enters the needle butt receptacle and prevents the knitting needle from moving in the direction is pulled out of the segment along its length.
  • the needle butt seat forms a depression that results in a slight weakening of the segment. If, however, the projection is arranged in the area of the needle foot receptacle, then this weakening of the segment is at least partially compensated.
  • the projection and the needle butt receptacles preferably at least partially overlap in a direction transverse to the longitudinal direction.
  • the projection overlaps the needle butt receptacle at the edge that faces the side of the segment from which the knitting tools protrude. This avoids “hinging” in the segment and makes the segment strong enough for easy assembly.
  • the segment is preferably held on the contact surface by at least one clamping cover, the clamping cover being fastened to the body with at least one screw which is screwed into a screw-in area.
  • the clamping cover in cooperation with the screw, then presses the segment against the contact surface and thus prevents the transverse and counter-transverse projections and the longitudinal and counter-longitudinal projections from being able to separate from one another.
  • the screw-in area is preferably higher than the contact surface. This means that more material is available here for screwing in the screw, which is advantageous for securely holding the screw.
  • the longitudinal groove is preferably at a predetermined distance from the screw-in area. This makes it possible to support the segment on both sides of the longitudinal groove on the body.
  • the transverse groove preferably merges into the longitudinal groove. This allows you to reduce the mass of the body somewhat.
  • the lower the mass of the corpus the lower the forces required to accelerate and decelerate the corpus. Such acceleration and deceleration is required in every knitting operation. The lower the forces, the faster the warp knitting machine equipped with the knitting tool bar can be operated.
  • the predetermined distance is greater than the transverse width of the longitudinal projection. It is also advantageous that the transverse projection has a length transverse to the longitudinal direction that is greater than half the length of the segment transverse to the longitudinal direction.
  • the material saving due to the shortened length of the transverse projection is used to save weight, but on the other hand it is ensured that the segment cannot be pivoted in relation to the longitudinal direction.
  • the longitudinal groove is designed as a continuous groove over the length of the body. On the one hand, this simplifies the manufacture of the body. On the other hand, material is again saved, which keeps the mass of the body small.
  • the transverse groove is open towards a longitudinal edge of the body. This makes it easier to bring the segment into contact with the contact surface of the body. You can thread the segment with the transverse projection into the transverse groove and then swing the segment down onto the contact surface until the longitudinal projection enters the longitudinal groove.
  • At least one segment is preferably preloaded with knitting tools.
  • the segment can then be loaded in an automatic loading machine, which can simultaneously adjust the knitting tools in the segment.
  • the pre-assembled segment can then be mounted on the knitting tool bar. Due to the double fixation of the segment in the longitudinal direction and in the transverse direction, the knitting tools then automatically have their correct position.
  • the figures show a knitting tool bar 1 of a warp knitting machine with a body 2 which has a longitudinal direction 3 which is represented by a double arrow.
  • the knitting tool bar 1 has a knitting tool holder which has a plurality of segments 4 that are separate from one another. The segments 4 rest against a contact surface 5 of the body 2 ( 6 ).
  • transverse grooves 6 In the contact surface 5 several transverse formations are formed in the form of transverse grooves 6 ( Figures 3 and 4 ).
  • Each segment 4 has a counter-transverse formation in the form of a transverse projection 7 ( Figures 1 and 2 ).
  • the transverse groove 6 and the transverse projection 7 run transversely to the longitudinal direction 3, ie in the transverse direction.
  • the width of the transverse projection 7 is adapted to the width of the transverse groove 6 .
  • the body 2 also has a longitudinal formation in the contact surface 5 , which is designed as a longitudinal groove 8 .
  • each segment has a counter-longitudinal projection in the form of a longitudinal projection 9 .
  • the longitudinal groove 8 and the longitudinal projection 9 run in the longitudinal direction 3.
  • the longitudinal projection 9 is adapted to the longitudinal groove 8.
  • the segment 4 has a needle foot receptacle 10 into which a needle foot 11 of a knitting tool, which is shown here in figure 5 is shown as a knitting needle 12 occur can.
  • the needle butt 11 ensures that the knitting needle 12 can be pulled out of the segment 4 in the direction of its longitudinal extension.
  • the longitudinal projection 9 and the needle butt receptacle 10 partially overlap.
  • the longitudinal projection overlaps the side of the needle butt receptacle on which the needle butt 11 of the knitting needle 12 rests.
  • the segment 4 is held on the contact surface 5 by a clamping cover 13 .
  • the clamp cover 13 is attached to the body with a screw 14 .
  • the screw 14 is screwed into a screw-in area 15 .
  • the screw-in area 15 is increased relative to the contact surface, ie it has a spacing transversely to the longitudinal direction 3 and transversely to the transverse direction.
  • a distance 16 is provided between the screw-in area 15 and the longitudinal groove 8 , which can also be regarded as part of the contact surface 5 .
  • a region 17 of the segment 4 can be placed at this distance 16 , so that the segment 4 can lie against the body 2 on both sides of the longitudinal groove 8 .
  • the transverse groove 6 merges into the longitudinal groove 8.
  • the transverse projection 7 is arranged at a predetermined distance A from the longitudinal projection 9 .
  • the distance A is greater than the width of the longitudinal projection 9 in the transverse direction, i.e. transverse to the longitudinal direction 3.
  • the transverse projection 7 has a length transverse to the longitudinal direction 3 which is greater than half the length of the segment 4 transverse to the longitudinal direction 3 the transverse projection 7 is a sufficiently reliable insurance against twisting of the segment 4 relative to the body 2.
  • the longitudinal groove 8 is designed as a continuous groove over the length of the body.
  • the transverse groove 6 is open towards a longitudinal edge of the body 2 .
  • the segment 4 is preferably preloaded with knitting tools, i.e. the segment 4 can be provided with knitting needles 12 (or other knitting tools) before it is mounted on the body 2 of the knitting tool bar 1 . It is thus possible to insert the knitting tools into the segment 4 by means of an automatic placement machine, in which case the automatic placement machine can also take on the task of straightening the knitting tools at the same time.
  • the knitting tools then have a clearly defined position in segment 4.
  • segment 4 on the body 2 of the bar also has a precisely defined position, so that the Knitting tools in turn can take a precise positioning on the body 2 of the knitting tool bar 1. A straightening following the mounting can then be omitted or can at least be carried out with less effort.

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

Claims (12)

  1. Barre de tricotage mailles jetées (1) avec un corps (2), qui comporte une direction longitudinale (3) et un logement d'outil de tricotage fixé sur une surface d'appui (5) du corps (2), qui comporte plusieurs segments (4) séparés les uns des autres, sachant que la surface d'appui (5) pour chaque segment (4) comporte une conformation transversale passant transversalement à la direction longitudinale (3) et chaque segment (4) comporte une conformation transversale opposée s'adaptant à la conformation transversale,
    sachant que dans la surface d'appui (5) une conformation longitudinale passant en direction longitudinale est prévue, sachant qu'au moins un segment (4) comporte une conformation longitudinale opposée coopérant avec la conformation longitudinale et sachant que
    la conformation longitudinale est constituée sous la forme d'une rainure longitudinale (8) dans la surface d'appui (5) et la conformation longitudinale opposée est constituée sous la forme d'une saillie longitudinale (9) sur le segment (4), sachant que la conformation transversale est constituée sous la forme d'une rainure transversale (6) et la conformation transversale opposée sous la forme d'une saillie transversale (7) sur le segment (4), caractérisée en ce que la saillie transversale (7) est disposée à une distance prédéterminée (A) de la saillie longitudinale (9) .
  2. Barre de tricotage mailles jetées selon la revendication 1, caractérisée en ce que le segment (4) comporte un logement de talon d'aiguille (10) et la saillie longitudinale (9) est disposée dans la zone du logement de talon d'aiguille (10).
  3. Barre de tricotage mailles jetées selon la revendication 2, caractérisée en ce que la saillie longitudinale (9) et le logement de talon d'aiguille (10) se chevauchent au moins en partie dans une direction transversalement à la direction longitudinale (3) .
  4. Barre de tricotage mailles jetées selon l'une quelconque des revendications 1 à 3, caractérisée en ce que le segment (4) est maintenu par au moins un couvercle de serrage (13) sur la surface d'appui (5), sachant que le couvercle de serrage (13) est fixé avec au moins une vis (14) au corps (2), qui est vissé dans une zone de vissage (15).
  5. Barre de tricotage mailles jetées selon la revendication 4, caractérisée en ce que la zone de vissage (15) est augmentée par rapport à la surface de contact (5).
  6. Barre de tricotage mailles jetées selon la revendication 4 ou 5, caractérisée en ce que la rainure longitudinale (8) comporte une distance prédéterminée par rapport à la zone de vissage (15).
  7. Barre de tricotage mailles jetées selon l'une quelconque des revendications 1 à 6, caractérisée en ce que la rainure transversale (6) passe dans la rainure longitudinale (8).
  8. Barre de tricotage mailles jetées selon la revendication 7, caractérisée en ce que la distance prédéterminée (A) est plus grande que la largeur de la saillie longitudinale (9) dans la direction transversale.
  9. Barre de tricotage mailles jetées selon la revendication 7 ou 8, caractérisée en ce que la saillie transversale (7) comporte une longueur transversalement à la direction longitudinale (3), qui est plus grande que la moitié de la longueur du segment (4) transversalement à la direction longitudinale (3).
  10. Barre de tricotage mailles jetées selon l'une quelconque des revendications 1 à 9, caractérisée en ce que la rainure longitudinale (8) est constituée sous la forme d'une rainure passant sur toute la longueur du corps (2).
  11. Barre de tricotage mailles jetées selon l'une quelconque des revendications 1 à 10, caractérisée en ce que la rainure transversale (6) est ouverte vers un bord longitudinal du corps (2).
  12. Barre de tricotage mailles jetées selon l'une quelconque des revendications 1 à 11, caractérisée en ce que au moins un segment (4) est prééquipé d'outils de tricotage.
EP21166460.2A 2021-03-31 2021-03-31 Barre d'outils de tricotage mailles jetees Active EP4067546B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP21166460.2A EP4067546B1 (fr) 2021-03-31 2021-03-31 Barre d'outils de tricotage mailles jetees
CN202210329949.0A CN115142186B (zh) 2021-03-31 2022-03-31 编织工具梳栉

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21166460.2A EP4067546B1 (fr) 2021-03-31 2021-03-31 Barre d'outils de tricotage mailles jetees

Publications (2)

Publication Number Publication Date
EP4067546A1 EP4067546A1 (fr) 2022-10-05
EP4067546B1 true EP4067546B1 (fr) 2023-05-03

Family

ID=75339643

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21166460.2A Active EP4067546B1 (fr) 2021-03-31 2021-03-31 Barre d'outils de tricotage mailles jetees

Country Status (2)

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EP (1) EP4067546B1 (fr)
CN (1) CN115142186B (fr)

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB788764A (en) * 1955-02-23 1958-01-08 Karl Mayer Erste Hessische Wir Improvements in or relating to needle bars for warp knitting machines
US5295450A (en) * 1992-05-01 1994-03-22 Card-Monroe Corp. Tufting machine with self-aligning gauging modules
DE29520281U1 (de) * 1995-12-21 1996-03-14 Jos. Zimmermann GmbH & Co KG, 52064 Aachen Modul und Barre für Tuftingwerkzeuge
EP1647619B1 (fr) * 2004-10-18 2011-09-21 Nippon Mayer Ltd. procédé et dispositif pour la production d'un tricot à mailles jetées tridimensionnel ayant des sections variables
DE102009020028B4 (de) * 2009-05-05 2017-02-16 Karl Mayer Textilmaschinenfabrik Gmbh Kettenwirkmaschine
EP2570541B1 (fr) * 2011-09-16 2014-03-26 Karl Mayer Textilmaschinenfabrik GmbH Barre d'outils active
EP2623652A1 (fr) 2012-01-31 2013-08-07 Karl Mayer Textilmaschinenfabrik GmbH Barre d'outils de tricotage et procédé de production d'une barre d'outils de tricotage
EP2650416A1 (fr) * 2012-04-12 2013-10-16 Karl Mayer Textilmaschinenfabrik GmbH Agencement de barres à passettes d'un métier à tricoter chaîne
DE202012104948U1 (de) * 2012-12-18 2013-01-24 Groz-Beckert Kg Werkzeugmodul für Textilmaschine
EP3081681B1 (fr) * 2015-04-15 2017-03-22 Karl Mayer Textilmaschinenfabrik GmbH BARRE POUR ÉlÉMENTS DE TRICOTAGE Á MAILLES JETÉES
EP3249087A1 (fr) * 2016-05-27 2017-11-29 Karl Mayer Textilmaschinenfabrik GmbH Barre pour un metier a tricoter a chaine
ES2747548T3 (es) * 2017-01-25 2020-03-10 Karl Mayer R&D Gmbh Barra de herramientas de tricotar
EP3587644B1 (fr) * 2018-06-22 2021-03-10 KARL MAYER STOLL R&D GmbH Monture d'outil de tricotage

Also Published As

Publication number Publication date
EP4067546A1 (fr) 2022-10-05
CN115142186B (zh) 2023-10-10
CN115142186A (zh) 2022-10-04

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