EP2034064B1 - Fonture pour une machine à tricoter rectiligne - Google Patents

Fonture pour une machine à tricoter rectiligne Download PDF

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Publication number
EP2034064B1
EP2034064B1 EP20070017433 EP07017433A EP2034064B1 EP 2034064 B1 EP2034064 B1 EP 2034064B1 EP 20070017433 EP20070017433 EP 20070017433 EP 07017433 A EP07017433 A EP 07017433A EP 2034064 B1 EP2034064 B1 EP 2034064B1
Authority
EP
European Patent Office
Prior art keywords
needle bed
stitch
openings
needle
bed 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.)
Active
Application number
EP20070017433
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German (de)
English (en)
Other versions
EP2034064A1 (fr
Inventor
Sven Dipl.-Ing. Wirth
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.)
H Stoll GmbH and Co KG
Original Assignee
H Stoll GmbH and Co KG
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 H Stoll GmbH and Co KG filed Critical H Stoll GmbH and Co KG
Priority to EP20070017433 priority Critical patent/EP2034064B1/fr
Priority to CN2008102128023A priority patent/CN101381924B/zh
Publication of EP2034064A1 publication Critical patent/EP2034064A1/fr
Application granted granted Critical
Publication of EP2034064B1 publication Critical patent/EP2034064B1/fr
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Classifications

    • 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
    • D04B15/10—Needle beds

Definitions

  • the needle beds of flat knitting machines usually have next to the needle channels arranged, non-movable mesh images or hold-down boards, which take over the function of the mesh images with.
  • the knock-off edge is often formed by a wire which extends over the entire length of the needle bed.
  • the stitches of these needle beds may catch threads fed into the stitch patterns.
  • a needle bed for a hand knitting machine which is composed of various profiled sheet metal parts.
  • One of the profile sheets of this needle bed has punched apertures through which the needles can slide to form stitches.
  • the webs between the openings of this profile sheet are the mesh images of this needle bed.
  • a knock-off edge is formed, said profile sheet rests against the inside of the stitch pattern profile sheet.
  • these needle beds can be made only in small length and used to produce only coarse knits. This applies all the more as the dimensional tolerances of the individual profile sheets of this needle bed add up.
  • a needle bed known, which is made of three sheet metal profiles.
  • the top sheet metal profile is provided with through holes for the needle shanks.
  • this sheet metal part has a longitudinally curved portion provided with slots for passing the needle heads.
  • the present invention has for its object to provide a needle bed for a flat knitting machine, on the stitch images, no thread can be caught and are to produce with the knit high fineness.
  • a needle bed for a flat knitting machine which is characterized in that it has over its length a plurality of adjoining stitch pattern segments which cover the front, longitudinal end face of the needle bed and which are provided with openings for the passage of the needles the lateral boundaries of these openings take over the function of mesh images and the lower boundaries of the openings take on the function of a cut-off edge for the stitches formed.
  • both the mesh images and the tee edge are formed by the openings for the needles.
  • the mesh images are thus no longer protruding elements on which a knitting thread could get caught.
  • the immediately adjacent arrangement of multiple mesh image segments makes it possible to equip even very long needle beds with these mesh image segments, the individual mesh image segments can be kept so short that only small dimensional tolerances occur in their production. It is advantageous if the individual mesh image segments are manufactured as one-piece elements.
  • the mesh image segments are curved parallel to their longitudinal direction, preferably made of sheet metal profiles. These can be produced easily and with high precision, in particular if the openings are introduced by laser cutting.
  • the mesh panels may also have second openings for the passage of hold-down boards present on most modern flat knitting machines. It is advantageous if the second openings are slit-shaped, so that the hold-down boards are enclosed by the stitch pattern segments as close as possible and the hold-down boards are guided in their effective range on the mesh. Thereby, the penetration of dirt into the needle bed and in particular in the guide channels of hold-down boards can be reliably prevented.
  • the mesh image segments with a section can engage underneath a strip running along the needle bed and mounted in the latter. The mesh image segments are thereby pinched between the strip and the needle bed.
  • the fixing portions have tabs which engage in a groove of the needle bed for receiving the needle bed bars, the stitch pattern segments are also secured against longitudinal displacement.
  • the mesh image segments have a non-perforated portion covering the front end face of the needle bed above the needles. This prevents contamination of the needle bed by yarn fibers.
  • the grooves in which the needles are long movably mounted remain free of contamination, which is essential for an undisturbed production process.
  • Fig. 1 shows a view of the front end side of a needle bed according to the invention.
  • Three mesh image segments 1 are shown, which are seamlessly joined together and thus cover the areas S1, S2 and S3 of the needle bed in the form of a closed profile.
  • Each of the mesh image segments 1 has an opening 13 for the passage of needles 2, which are shown by way of example in the area S1 of the needle bed.
  • the lateral boundaries 11 of the openings 13 have the function of mesh images and the lower edges 12 have the function of a knock-off edge.
  • the joint between two mesh image segments lies in the middle of the hook of a needle 2.
  • the mesh image segments 1 have slot-shaped openings 14, which serve for the passage of hold-down plates 3.
  • the slot-shaped openings 14 are provided with an extended lower portion 14 '. This area 14 'allows a simplified insertion of the board 3 in the slot-shaped opening 14 when the board 3 is installed.
  • the mesh image segments 1 On the upper side, the mesh image segments 1 have a portion 15 which has no openings and covers the front end face of the needle bed, in particular from FIGS Fig. 5 to 7 is apparent. This area 15 is therefore able to protect the needle bed from contamination by yarn fibers.
  • the mesh image segments 1 are provided with lugs 17 which engage in a groove 61 of the needle bed.
  • the lugs 17 thus cause a fixation of the mesh image segments 1 in the longitudinal direction of the needle bed.
  • the groove 61 serves primarily for receiving needle bed webs 7 (FIG. Fig. 5 . 6 ).
  • Fig. 2 corresponds to the view of Fig. 1 with three alternatively configured mesh image segments 1 ', which here cover the areas S1', S2 'and S3' of the needle bed.
  • the difference with the stitch pattern segments 1 is that the joint between adjacent stitch pattern segments 1 'is located at the lateral edge of the slot-shaped openings 14' and not in the middle of the hooks of the needles 2.
  • the mesh image segments 1 and 1 ' are identical in construction and function.
  • Fig. 3 shows a mesh image segment 1 in single representation in the same view as Fig. 1 ,
  • the recess 13 'on the left side of the stitch pattern segment 1 and the recess 13 "on the right side together correspond in their dimensions to the opening 13 required for the passage of a needle 2.
  • the width of the stitch pattern segment 1 extends over in the illustrated example However, the width can be varied and adapted to the particular manufacturing process.The more accurate the manufacturing process, the greater the width can be selected.
  • a single mesh image segment 1 ' is shown.
  • the width of the segment 1' can be varied according to the selected manufacturing process.
  • the sectional view from Fig. 5 through the front area of the needle bed Fig. 1 along the line BB illustrates that it is the mesh image segment 1 is a bent parallel to its longitudinal direction profile, which is preferably made of sheet metal.
  • Fig. 5 also illustrates the storage of the stitch pattern segment 1 in the needle bed 6.
  • the stitch pattern segment 1 has a portion 18 which is disposed below a bar 8 which extends along the needle bed 6 and is mounted in the needle bed 6.
  • To the section 18 includes an angled portion 16 which engages in grooves 71 of the needle bed webs 7. Characterized the stitch pattern segment 1 is fixed in Austriebsraum the needle 2.
  • Fig. 5 also shows one of the openings 13 for the needles 2 in a curvature region of the stitch pattern segment 1, the lateral boundaries 11 take over the function of mesh images and their lower boundary 12 the function of a knock-off edge. Above the openings 13, the closed region 15 connects, which covers the needle bed front side and thereby prevents contamination of the needle bed 6 by yarn fibers.
  • the set mesh segments 1 of the needle bed 6 form a closed profile, which is interrupted only by the openings 13 substantially. This makes it largely impossible for themselves after the Carriage reversal, a thread that is fed to the loop formation can get caught on a stitch pattern and thus the thread is not detected by the subsequent needles.
  • the needle 2 is in a knocking position, that is, it has been brought by a movement in the direction of the arrow Z in the position in which a held by her stitch 51 slides over the needle hook, that is cut off. Due to the withdrawal force acting on the fabric 60 in the direction of the arrow X and is transmitted from this to the stitching 51, the stitching 51 is supported by its two legs 52 on the knock-off edge 12 of the stitch pattern segment 1 as it rests on the needle 2, which performs a movement in the direction of the arrow Z.
  • the mesh images 11 have no essential function in the knockdown of the mesh shown here.
  • dash-dotted line 100 denotes the center of the comb gap between the needle bed 6 and an opposite second needle bed, not shown here.
  • Fig. 6 shows one of the Fig. 5 corresponding sectional view through the needle bed 6 from Fig. 1
  • the needle 2 has been pulled back by a movement in the direction of arrow Z so far that the newly formed mesh 53 has reached its desired size.
  • the thread for stitch 53 was pulled through the in Fig. 5 chopped stitch 51 pulled through.
  • the mesh 51 is supported with its two legs 52 at the tee edge 12.
  • the thread required to form the stitch 53 abuts the stitches 11 and undergoes a deflection at the end of the loop legs 54 of the stitch 53 as the needle 2 is moved in the direction of the arrow Z.
  • Fig. 7 is a section through the front portion of the needle bed 6 from Fig. 1 shown along the line AA.
  • the guidance of the mesh-near portion 31 of a hold-down board 3 is shown.
  • the hold-down plate 3 in the needle bed 6 receives this at its mesh near area 31 an additional guide by embracing the area 31 through the slot-shaped opening 14 of the stitch pattern segment 1. This guide is effective at least during the action of the hold-down plate 3 on the fabric ,
  • FIG. 7 shows Fig. 7 the nose 17, which is formed on the portion 16 of the stitch pattern segment 1, as it engages in one of the grooves 61 of the needle bed 6.
  • the grooves 61 serve to support the needle bed webs 7.
  • the nose 17 thus causes a fixation of the stitch pattern segment 1 in the longitudinal direction of the needle bed. 6

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

Claims (9)

  1. Fonture pour une machine à tricoter rectiligne, caractérisée en ce qu'elle a sur sa longueur plusieurs segments (1, 1') de formation de mailles voisins les uns des autres, qui recouvrent le côté frontal avant s'étendant en longueur de la fonture (6) et qui sont pourvus d'ouverture (13) pour le passage des aiguilles (2), les bordures (11) latérales de ces ouvertures (13) assumant la fonction de formeurs de mailles et les bordures (12) inférieures des ouvertures (13) assumant la fonction d'une platine d'abattage des mailles (51) formées.
  2. Fonture suivant la revendication 1, caractérisée en ce que les segments (1, 1') formeurs de mailles sont des profilés courbés parallèlement à la direction longitudinale et fabriqués de préférence en tôle.
  3. Fonture suivant la revendication 1 ou 2, caractérisée en ce que les segments (1, 1') formeurs de mailles ont deux ouvertures (14) pour le passage et le guidage de platines (3) à cueillir.
  4. Fonture suivant la revendication 3, caractérisée en ce que les deux ouvertures (14) sont en forme de fente.
  5. Fonture suivant la revendication 3 ou 4, caractérisée en ce que les deux ouvertures (14) ont un élargissement (14') dans la partie inférieure.
  6. Fonture suivant l'une des revendications précédentes, caractérisée en ce que les segments (1, 1') formeurs de mailles prennent par en dessous par une partie (18) une réglette (8) s'étendant le long de la fonture (6) et montée dans celle-ci.
  7. Fonture suivant l'une des revendications précédentes, caractérisée en ce que les segments (1, 1') formeurs de mailles pénètrent par des parties (16) coudées d'immobilisation dans des rainures des cloisons (7) de la fonture (6).
  8. Fonture suivant la revendication 7, caractérisée en ce que les parties d'immobilisation ont des becs (17) qui pénètrent dans une rainures (61) de la fonture (6) pour la réception des cloisons (7) de fonture et empêchent ainsi les segments (1, 1') formeurs de mailles de se déplacer longitudinalement.
  9. Fonture suivant l'une des revendications précédentes, caractérisée en ce que les segments (1, 1') formeurs de mailles ont une partie (16) ininterrompue, qui recouvre le côté frontal avant de la fonture (6) au dessus des aiguilles (2).
EP20070017433 2007-09-06 2007-09-06 Fonture pour une machine à tricoter rectiligne Active EP2034064B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20070017433 EP2034064B1 (fr) 2007-09-06 2007-09-06 Fonture pour une machine à tricoter rectiligne
CN2008102128023A CN101381924B (zh) 2007-09-06 2008-09-05 用于针织横机的针床

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20070017433 EP2034064B1 (fr) 2007-09-06 2007-09-06 Fonture pour une machine à tricoter rectiligne

Publications (2)

Publication Number Publication Date
EP2034064A1 EP2034064A1 (fr) 2009-03-11
EP2034064B1 true EP2034064B1 (fr) 2011-08-31

Family

ID=39453568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070017433 Active EP2034064B1 (fr) 2007-09-06 2007-09-06 Fonture pour une machine à tricoter rectiligne

Country Status (2)

Country Link
EP (1) EP2034064B1 (fr)
CN (1) CN101381924B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2251469B1 (fr) * 2009-05-15 2013-07-17 H. Stoll GmbH & Co. KG Machine à tricoter rectiligne dotée de platines de retenue

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1073143B (de) * 1955-11-08 1960-01-14 Societe de L Usine de la Marque Paris Nadelbett fur Flachstnckmaschinen insbesondere fur Handflachstrick maschinen
GB825342A (en) 1957-04-10 1959-12-16 Empisal Ltd The formation of needle beds for knitting machines
US3250093A (en) * 1963-04-16 1966-05-10 Aoyama Kenkyujo Hand knitting machine
IL27656A (en) * 1966-04-01 1970-06-17 Empisal Ltd Needle-beds for domestic knitting machines
GB1140627A (en) * 1966-04-20 1969-01-22 Empisal Ltd Flat needle bed for a knitting machine
GB1210759A (en) * 1968-04-02 1970-10-28 Empisal Ltd Improvements in needle-beds for domestic knitting machines
CN2291423Y (zh) * 1997-06-04 1998-09-16 河北燕兴机械厂 镶嵌组合式栅状齿针床
TW522186B (en) * 1999-11-17 2003-03-01 Shima Seiki Mfg Sinker device of flat knitting machine
CN2658186Y (zh) * 2003-09-27 2004-11-24 孙平范 组合式针床
CN2732778Y (zh) * 2004-08-27 2005-10-12 北京北方天鸟科技发展有限责任公司 具有镶嵌式针道和镶栅状齿的针床

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Publication number Publication date
CN101381924B (zh) 2012-03-21
CN101381924A (zh) 2009-03-11
EP2034064A1 (fr) 2009-03-11

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