EP0227018B1 - Lochnadelsegment für Häkel- und Raschelmaschinen - Google Patents

Lochnadelsegment für Häkel- und Raschelmaschinen Download PDF

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Publication number
EP0227018B1
EP0227018B1 EP86117533A EP86117533A EP0227018B1 EP 0227018 B1 EP0227018 B1 EP 0227018B1 EP 86117533 A EP86117533 A EP 86117533A EP 86117533 A EP86117533 A EP 86117533A EP 0227018 B1 EP0227018 B1 EP 0227018B1
Authority
EP
European Patent Office
Prior art keywords
eye
transverse connection
needles
segment according
carrier member
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.)
Expired - Lifetime
Application number
EP86117533A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0227018A1 (de
Inventor
Franz Dengler
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT86117533T priority Critical patent/ATE52549T1/de
Publication of EP0227018A1 publication Critical patent/EP0227018A1/de
Application granted granted Critical
Publication of EP0227018B1 publication Critical patent/EP0227018B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D04B27/02—Warp-thread guides
    • 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 perforated needle segment for use on crochet or Raschel machines, with the individual features of the preamble of claim 1.
  • Such perforated needle segments essentially consist of a carrier body connected to a movement-driven part of the machine and a plurality of perforated needle lamellae which protrude parallel and equidistantly from a side face, namely from an end face of the carrier body.
  • the perforated needles are provided at their free end with a hole for the passage of a possibly elastic thread section, while the perforated needles are held in the carrier body with their fastening end.
  • the segments are fastened to a cross member, which carries out an elliptical rotational movement with a relatively high rotational frequency, not inconsiderable mechanical forces act on the connection between the perforated needles and the carrier body.
  • DE-C 667 602 discloses a perforated needle arrangement for warp knitting machines, perforated needles being provided interchangeably in grooves in two plate-shaped needle carriers.
  • the clamped ends of the perforated needles are designed symmetrically to the ends projecting above the needle carrier and, like these, are each provided with an eye, and a cross pin is also pushed through these eyes of the clamped perforated needle ends, which is intended to secure the mutual position of the perforated needles to one another.
  • this cross pin can be pulled out again without difficulty in order to enable multiple use of the perforated needles and to facilitate the insertion or replacement of the needles without special specialist knowledge.
  • the invention has for its object to develop a perforated needle segment with the features of the preamble of claim 1 in such a way that it is reduced in weight and thereby ensures a permanently firm bond between the carrier body and perforated needle lamellae.
  • the segments should also be easy to manufacture and inexpensive by saving on metallic raw materials.
  • the cross connector or cross connectors also protrude or protrude beyond the side edges of the fastening ends of the perforated needles and lie or lie in an inner recess of the carrier body, then a positive connection is established with the carrier body material and the hold is increased still further.
  • the support body made of plastic material, in particular ABS plastic, is particularly advantageous, since then the prepared and provided with the cross connector needle set can be easily injected or poured into the plastic body.
  • a plurality of cross-connectors on both sides in the area of the fastening end of the perforated needle lamellae ensures that the perforated needle package prepared for injection does not twist or bend, which would have the consequence that the individual perforated needles lose their equidistance to one another.
  • the cross connector (s) are made of welding wire and are attached to the back of the needle lamellae by an electric welding process.
  • the welding wire also has an advantageous effect in that. it has a certain flexibility, which allows the prepared perforated needle assembly to be aligned after insertion into corresponding recesses in the injection mold for the production of the carrier body and there making sure that the needle alignment is really accurate.
  • a tripartite arrangement of the cross connector has proven to be particularly advantageous statically.
  • a really intimate connection between cross connector and perforated needle lamellae can be achieved in that the back or side edges of the perforated needle lamellae are provided with U-shaped recesses into which the cross connector designed as a welding wire is inserted.
  • the radius of the U-shaped recesses corresponds approximately to the radius of the welding wire, so that there is a relatively long welded connection.
  • the cooling plastic shrinks by about 0.8% to 1% after the injection molding process, the comb-like needles tend to bend open like a fan. H. to take a slightly greater distance in the area of their needle tips than in the area of the needle ends.
  • Such expansion by contraction of the plastic is avoided by reducing the tension in the area of the plastic back through recesses, which are advantageously a plurality of recesses that extend parallel to one another in the longitudinal direction of the needle between the fastening hole and the perforated needles.
  • the recesses have the shape of elongated holes.
  • a further stiffening of the carrier body is achieved in that a plurality of stiffening ribs is provided, which in particular enclose the edge of the carrier body and at least partially run in the center of the carrier body in the longitudinal direction of the needle.
  • a reinforcement of the support body is also provided, which merges into the stiffening ribs. This prevents the carrier body from breaking out in the area of the fastening hole under high loads.
  • the perforated needle segment I shown in Fig. I for a crochet and / or Raschel machine consists essentially of a support body 2 and a plurality of needles 4 protruding from the end face 3 of the support body 2, which have a flat-rectangular cross section, equidistant and parallel to each other are arranged and are provided at their free end 5 with a hole 6 for the passage of a thread section and are held with their fastening end 7 in the carrier body.
  • rod-like cross connectors 8, 9, 10 are arranged, which are firmly connected to the fixed ends 7 and run within the carrier body 2 over the entire width II of the needle arrangement essentially at right angles to the longitudinal direction 12 of the needle.
  • the cross connectors 8-10 protrude beyond the side edge 13 of the fastening ends 7 of the needles 4, as can be clearly seen from FIG. 3.
  • the cross connectors are made of welding wire and have a round cross section, the coupling between the individual perforated needles 4, which is produced via the cross connectors 8-10, is elastic.
  • the cross connectors 8-10 formed from welding wire there are electrical welding connections (these are areas where there is a mutual flow of material);
  • the perforated needle lamellae have 13 U-shaped recesses 14 in their side edges, the diameter of which corresponds approximately to the diameter of the cross connector 8-10 made of welding wire.
  • the carrier body has a rectangular cross section and a fastening hole 16 at its end facing away from the needles 4.
  • FIG. 4 shows the second side of the perforated needle segment, which is opposite the first side shown in FIG. I.
  • the carrier body 2 is provided with a plurality of recesses 17, which are partly between the fastening hole and the needles 4.
  • the recesses 17 are elongated holes, the longitudinal axis of which extend in the direction of the needles 4. 4 that the carrier body 2 has a plurality of stiffening ribs 18, 19, the stiffening ribs 18 being arranged on the edge of the carrier body 2 and extending into the region of the carrier body which receives the fastening hole 16.
  • the stiffening rib 19 extends towards the center of the fastening hole 16 parallel to the direction of the needles.
  • the carrier body Around the fastening hole 16, the carrier body has an additional reinforcement 20 which merges into the stiffening rib 19 in the region 21.
  • the reinforcement 20 is designed such that the head of a fastening screw finds a bearing surface running parallel to the flat side of the carrier body shown in FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Knitting Machines (AREA)
  • Materials For Medical Uses (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
EP86117533A 1985-12-23 1986-12-17 Lochnadelsegment für Häkel- und Raschelmaschinen Expired - Lifetime EP0227018B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86117533T ATE52549T1 (de) 1985-12-23 1986-12-17 Lochnadelsegment fuer haekel- und raschelmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8536352U 1985-12-23
DE8536352U DE8536352U1 (de) 1985-12-23 1985-12-23 Lochnadelsegment für Häkel- und Raschelmaschinen

Publications (2)

Publication Number Publication Date
EP0227018A1 EP0227018A1 (de) 1987-07-01
EP0227018B1 true EP0227018B1 (de) 1990-05-09

Family

ID=6788563

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86117533A Expired - Lifetime EP0227018B1 (de) 1985-12-23 1986-12-17 Lochnadelsegment für Häkel- und Raschelmaschinen

Country Status (4)

Country Link
EP (1) EP0227018B1 (es)
AT (1) ATE52549T1 (es)
DE (2) DE8536352U1 (es)
ES (1) ES2015526B3 (es)

Families Citing this family (5)

* 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
DE10227532B4 (de) * 2002-06-20 2006-02-23 Groz-Beckert Kg Modul für Textilmaschinen, insbesondere Maschen bildende Maschinen
CN102358987B (zh) * 2011-09-26 2015-11-25 重庆胜普昂凯科技有限公司 选针器的针固定装置
PT3241934T (pt) 2016-05-04 2019-02-26 Groz Beckert Kg Módulo de ferramenta têxtil e máquina têxtil com um módulo de ferramenta têxtil

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE667602C (de) * 1937-04-15 1938-11-15 Ernst Liebers Fa Lochnadelanordnung fuer Kettenwirkmaschinen
DE1076305B (de) * 1956-08-20 1960-02-25 Merckle Karl Legenadel an Raschelmaschinen
US3369379A (en) * 1965-05-28 1968-02-20 Torrington Co Jack for automatic knitting machine
FR1559391A (es) * 1968-03-25 1969-03-07
US4137730A (en) * 1978-04-20 1979-02-06 Bassist Rudolf G Needle support assembly for a knitting machine

Also Published As

Publication number Publication date
ATE52549T1 (de) 1990-05-15
DE3671052D1 (de) 1990-06-13
EP0227018A1 (de) 1987-07-01
ES2015526B3 (es) 1990-09-01
DE8536352U1 (de) 1986-04-03

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