EP1368520B1 - Dispositif de formation de mailles sur machine - Google Patents

Dispositif de formation de mailles sur machine Download PDF

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Publication number
EP1368520B1
EP1368520B1 EP02750519A EP02750519A EP1368520B1 EP 1368520 B1 EP1368520 B1 EP 1368520B1 EP 02750519 A EP02750519 A EP 02750519A EP 02750519 A EP02750519 A EP 02750519A EP 1368520 B1 EP1368520 B1 EP 1368520B1
Authority
EP
European Patent Office
Prior art keywords
needle
transfer hook
hook
shaft
transfer
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
EP02750519A
Other languages
German (de)
English (en)
Other versions
EP1368520A2 (fr
Inventor
Ulrich Hofmann
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.)
Groz Beckert KG
Original Assignee
Groz Beckert 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
Priority claimed from DE2001112277 external-priority patent/DE10112277C1/de
Application filed by Groz Beckert KG filed Critical Groz Beckert KG
Publication of EP1368520A2 publication Critical patent/EP1368520A2/fr
Application granted granted Critical
Publication of EP1368520B1 publication Critical patent/EP1368520B1/fr
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
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/02—Knitting tools or instruments not provided for in group D04B15/00 or D04B27/00
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/02—Knitting tools or instruments not provided for in group D04B15/00 or D04B27/00
    • D04B35/06—Sliding-tongue needles
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B39/00—Knitting processes, apparatus or machines not otherwise provided for

Definitions

  • the invention relates to a device for machine stitching with at least one continuous thread, in which the thread by means of the hook portion of a knitting needle or knitting needle is respectively moved through the loop previously formed as a loop and forms a new loop in which the knitting needle or knitting needle below the needle hook has a slot into which a vertically movable downwardly movable transfer hook is penetrated.
  • the stitch formed last is held by a hook designed as the head of the needle, which is then brought into a point position when the needle is pushed forward. From there, it is brought over a newly caught in the needle hook thread when retracting the needle by means of the switch point over the closed hook and thrown over the Kul réelle the new loop about it.
  • the needle hook has thus two tasks: to hold the last stitch and thus the knit formed up to then and to catch a new thread and to make this into a loop.
  • the use of the stitching apparatus depends critically on being able to ensure the safety when dipping the transfer hook into the slot of the needle breast. It is already an advantage that the needle and the transfer hook have the same shaft thickness, which gives sufficient security for coarser divisions that the transfer hook passes in its return movement in the needle face. At very fine pitches, the lateral play in the needle channels and variations in the lateral straightness of the stitch-forming elements may result in the transfer hook striking the sidewall of the needle slot instead of entering the slot.
  • a method of machine stitching with at least one continuous thread is known in which the thread is in each case moved through the loop previously formed as a loop and forms a new stitch, which is then held substantially in the plane of the previously formed stitch until the next trapped thread at the beginning of looping in the range of stitching passes.
  • the thread has overcome several sliding resistances. First by the rise of the needle breast, then by the backwards opened tongue and finally by the retraction of the needle the rise to the hook and the extension over the tongue spoon. In the case of the needle, it is problematic that the slider must disappear in the needle breast, but in the closed position to cover the hook.
  • the object of the invention is to provide a device for stitching, which allows easy and safe smaller mesh heights than in all previously used methods.
  • the embodiment according to claim 3 relates to design features of the stitch-forming elements and the controlled inward movement of the transfer hook by a slider mounted on the needle lock.
  • the embodiment according to claim 4 serves the design and the central guide of the transfer hook.
  • the embodiment according to claim 5 also allows the tolerance compensation in the transverse direction of the stitch forming elements. It also offers an alternative to the central guidance of the transfer hook.
  • the development according to claim 7 simplifies the insertion of new, unconsumed knitting elements in a barre.
  • FIG. 1 to 4 the movement sequence of the front region of the stitch-forming elements is shown.
  • the rear version - not visible because of the 10x magnification - corresponds to those in FIGS. 5 and 8 , She lets through the springy Pressing the two stitch forming elements and a transverse movement of the transfer hook in the size arrangement of its projection below the edition level, without special control parts must be provided in the needle lock.
  • the mesh height can be made smaller by this amount.
  • the Fig. 1 is the basic position. Above the dash-dotted lines indicated tee 7 is the needle hook 2 for receiving a new thread in the Austriebswolf.
  • the front support surface 43 of the transfer hook shaft 9 is in the recess 41 behind the needle face 3a, so that the transfer hook 10 is located in the needle slot 4 and includes the mesh formed last.
  • the needle hook 1 is aligned with the height of the breast 3a and the transfer hook part 9 is no projection below the support plane. This is an important advantage for the production of the transfer hook part.
  • a tongue-like recess 46 is provided which serves the central guide of the transfer hook 10 in the wider cylinder channel of the Kulier Schemes.
  • a tongue-like recess 46 is provided which serves the central guide of the transfer hook 10 in the wider cylinder channel of the Kulier Schemes.
  • an upwardly open groove or likewise a belt-like bulge 4a be provided, in the Fig. 4 the needle hook was moved forward again in the outward position of the transfer hook.
  • Fig. 5 shows a non-inventive device in the embodiment for circular knitting machines without transverse movement of the transfer hook 10.
  • the shaft 9 of the transfer hook 10 is guided at full shaft thickness of the needle 1,2,3 in the needle channel.
  • the shaft 9 of the transfer hook 10 has, above its control foot 12, a spring part 6, so that after attaching the needle lock the lock inner surface 8 presses the shaft 9 of the transfer hook 10 against the needle shaft 1 and this against the needle channel bottom.
  • a tongue 24 is provided in the transfer hook 10, namely on the support surface 43. It slides in the slot 4 of the needle face 3a and ensures the central guidance of the transfer hook 10 to the needle 2.
  • Fig. 6 the tongue 24 is shown enlarged in the shaft 9 of the transfer hook 10. It is formed by the fact that on the front bearing surface of the shaft 9, two aligned punch 25 (FIG. Fig. 7 ) are set on both sides so that a pea-shaped sector of a circle (tongue 24) is pressed out in the middle when pressed against the underside of the support.
  • the resultant tongue 24 slides in the needle groove 4 of the needle face 3a and ensures the central guidance of the transfer hook 10 to the needle 2.
  • FIG. 8 shows the advantageous application of the non-inventive arrangement according to Fig. 5 for warp knitting machines.
  • needles have prevailed.
  • the needles and slide parts are not moved individually, but in rows clamped in so-called bars.
  • a particularly controlled ingot is necessary in each case.
  • Both the needles 1, 2, 3 and the shaft 9 of the transfer hook 10 can be received in just one bar.
  • the clamping claw 15 presses the needles 1, 2, 3 in the rear zone on the channel base 33.
  • the channels are offset to the height of the needle shaft 1, while in the front part a sliding surface 16 is provided, under which the spring member 11 of the shaft. 9 the transfer hook 10 allows the required small relative movement of the transfer hook 10 to the needle hook 2.
  • the spring member 11 merges into an outwardly directed projection 21 with a groove 22 into which the control ruler 23 for the relative movement of the needle 2 to the transfer hook 10 engages. It is also a version without spring part 11, ie with solid rear part of the shaft 9 of the transfer hook 10 possible. The precise investment of the transfer hook shank 9 against the needle 1 can then take place by means of a molded on the sliding surface 16, beyond the upper edge of the Spannpratze15 going out (not shown) spring attachment.
  • FIGS. 5 and 8 illustrated recess on the back below the needle hook 2 can also in the execution of the device according to Fig. 1 to 4 to be appropriate.
  • the sliding surface 16 may consist of a hardened and polished steel strip, which is additionally provided with a titanium nitride coating.
  • Ceramic or cermet versions as well as abrasion-resistant plastic surfaces are also possible.
  • FIGS. 9 and 10 form three elements, each consisting of needle 1, 2, 3 and transfer hooks 9, 10, a set that allows the simultaneous insertion of, in the present case, three elements side by side in a bar.
  • the elements are mounted in a foil 44 with punched at exactly the distance corresponding to their working position in the bar. After inserting the elements, the foil 44 is removed and discarded. If required, more than three elements can be combined in one sentence.
  • the Fig. 12 shows the Kulier ein of the needle hook 2 with the formed into a new loop thread, while the transfer hook 10 remains in its lower position.
  • Fig. 15 It is shown how the shaft 9 of the transfer hook 10 is received in the central region 5 of the needle shaft 1.
  • the shaft of the needle 1 is split there, the lower (left in the side view) section merges into the needle face 3a and the needle hook 2, while the upper (right in the side view) part is formed as a spring member 6.
  • the spring part 6 presses the shaft 9 of the transfer hook 10 without tolerances on the upper edge of the needle shaft 1, so that a small projection of the transfer hook 10 below the shaft support ensures with certainty that it detects the mesh located above it in the groove 4 in the needle face 3a.
  • the shaft 9 of the transfer hook 10 is guided at full shaft thickness of the needle 1, 2, 3 in the needle channel.
  • the transfer hook 10 has an effective needle-like spring part 11, so that after attaching the needle lock the lock inner surface 8 presses the shaft 9 of the transfer hook 10 against the needle shaft 1 and this against the needle channel bottom.
  • the provided in the rear of the needle shaft 1 control foot, which is guided in a second castle track is not shown.
  • FIG. 17 shows the advantageous application of the arrangement according to Fig. 16 for warp knitting machines.
  • needles have prevailed.
  • the needles and slide parts are not individually, but in rows - clamped in so-called bars - moves.
  • the shaft 9 can be accommodated in only one bar 14.
  • the clamping claw 15 pushes the needles 1, 2, 3 of the rear zone on the channel bottom, while in the front part a sliding surface 16 is provided, under which the spring portion 11 of the transfer hook parts 9 allows the required small relative movement of the transfer hook 10 to the needle hook 2.
  • the control foot 17, which the transfer hook feet, z. B. includes and controls a Nutenlineal not shown. It is also a version without spring part 11, ie with solid rear shaft of the transfer hook part 9 possible.
  • FIGS. 18 and 19 are greatly enlarged views of the transfer hook 10 with the lateral deposits for insertion into the needle groove 4 ( Fig. 15 ).
  • the weakened there zone serves only to detect the mesh, which in further downward movement of the somewhat obliquely to the needle hook 2 formed transfer hook 10 to the indicated tee edge aa (7 in Fig. 11 ). Be stretched beyond the rise curve 18 to the full shaft strength and so can absorb a large tensile stress of the thread.
  • Fig. 20 are in the needle channel in the upper part of the needle cylinder la needles 1 with a not visible in the magnification rear control foot (31 in Fig. 29 ) moves in a known manner with a designated therein lock track in the vertical direction.
  • On the top of the needle is also not visible, fixed in the longitudinal direction in the channel walls bearing part which opens into a flat spring 26 at the top, as the bearing 27 is a nose 29, in which the groove 28 of the lever 13 engages with the transfer hook 10.
  • the flat spring 26 has an outwardly directed bias and pushes the control knob 12 in the top of the lock 19 located cam 20, 20a, 20b ( FIGS. 20 and 22 ) to pivotally move the transfer hook 10 both radially and vertically.
  • the flat part 5 of the needle 1 located below the needle hook 2 has a slot 4 (FIG. FIGS. 20 to 22 ), in which the transfer hook 10 shown in the basic position can penetrate.
  • the transfer hook 10 fetches the last stitch in front (ie upward) pushed needle 1 from the slot 4 of the flat part.
  • 5 Fig. 21 shows the top view of the corresponding part of the needle 1 with the slot. 4
  • the transfer hook 10 in the engagement region of the flat part 5 may not have the full needle thickness.
  • Fig. 22 shows the plunging movement of the transfer hook 10 in the needle slot 4.
  • the flat part 5 is slightly offset from the needle bottom to allow evasion, if a disturbance obstructs or obstructs the pivoting of the transfer hook 10 in the slot 4.
  • the control knob 12 of the lever 13 is pressed against the vertical control track 20a, ie, the input and the swinging of the transfer hook 10 in the slot 4 of the needle 1 is effected by the control tracks 20a and 20b.
  • the Fig. 23 to 28 show the stitch formation.
  • the old mesh is detected by the transfer hook 10 in the firing position of the needle.
  • Fig. 29 shows a further embodiment for the control of the transfer hook 10. He is here on an inserted over the shaft of the needle 1 rocking element 30, which has a foot 31 for the movement in the longitudinal direction and for the transverse movement of both ends elevations 32, which emerge mutually and be moved by the profile surveys in the (not shown here) needle lock alternately.
  • the stitch formation thus corresponds to the Fig. 23 to 28 explained, except that instead of the pivoting movement, a longitudinal movement of the transfer hook 10 takes place.
  • Fig. 30 shows a particularly advantageous solution for the movement of the transfer hook 10, with both its longitudinal and its transverse movement is possible with a single control point.
  • a hairpin-shaped curved slider 34 which acts under spring action in the needle slot 4 (FIG. Fig. 20, 22nd ) and has a rear side of the transfer hook 10 arranged tooth 35 which is controlled in the (not shown) Schlossbahn.
  • the control track (not shown) must have a cam (not shown) which engages behind the tooth 35.
  • the Fig. 31 also shows an advantageous design of the mesh-forming parts.
  • the slider 37 passes from a fixed, over the needle shaft displaceable part up in a resilient part, at the end of the control cam 36 points in the opposite direction of the transfer hook 10. Longitudinal and transverse movement can be carried out at the same location on the small control cam 36.
  • the examples described are applications for high performance circular knitting machines.
  • the described stitching can also be realized in a dial (not shown) arranged perpendicularly to the lock cylinder 1a in order to produce double-faced knitwear.

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

Claims (7)

  1. Dispositif destiné à la formation de mailles sur machine comportant au moins un fil continu, dans lequel le fil est déplacé sous forme de boucle au moyen de la partie crochet d'une aiguille de tricotage à maille cueillie ou à maille jetée à travers la maille formée auparavant et forme une nouvelle maille, dans lequel dispositif l'aiguille de tricotage à maille cueillie ou à maille jetée (1, 2) présente en dessous du crochet d'aiguille (2) une fente (4) ou une indentation du genre d'une rainure (4a) dans laquelle peut pénétrer un crochet de transfert (10) orienté vers le bas et mobile dans la direction verticale, caractérisé en ce que le crochet de transfert (10) peut pénétrer dans la fente (4) grâce à un déplacement transversal qui peut être commandé simultanément.
  2. Dispositif selon la revendication 1 caractérisé en ce que la surface d'appui avant (43) du crochet de transfert (10) peut être déplacée à l'écart perpendiculairement au crochet d'aiguille (2) lors de son déplacement vers le haut par rapport au crochet d'aiguille (2), au moyen d'un renflement, ou relief (3a) prévu sur l'aiguille (1), de la profondeur de la zone du crochet de transfert (10) qui pénètre dans la fente (14) ou dans l'indentation (4a), et en ce que le déplacement du crochet de transfert (10) vers l'intérieur s'effectue sous effet de ressort (6, 11) ou au-dessus de la partie arrière massive du fût (9) au moyen d'une partie ressort qui dépasse au-dessus de la griffe de serrage (15).
  3. Dispositif selon la revendication 1 caractérisé en ce que la longueur du renflement (3a) présentant la fente (4) est inférieure à l'écart entre le crochet de transfert (10) et le bord supérieur de sa surface d'appui (43) et en ce que le déplacement du crochet de transfert (10) vers l'intérieur s'effectue grâce à un logement (42) prévu dans le support d'aiguilles.
  4. Dispositif selon l'une des revendications 1 à 3 caractérisé en ce qu'en vue de l'introduction dans la fente (4) le crochet de transfert (10) présente des étagements latéraux qui conduisent à la pleine épaisseur de fût de la partie crochet de transfert (9), sous forme de cuvettes de montée (18) et/ou en ce que le fût (9) du crochet de transfert (10) présente une languette (24) que l'on peut faire passer dans la fente (4) rallongée de l'aiguille de tricotage à maille cueillie ou à maille jetée (1, 2) et qui est formée au moyen d'un amincissement limité du fût (9) du crochet de transfert (10) qui est incliné vers l'extérieur et qui en outre est susceptible d'être ramené en arrière.
  5. Dispositif selon l'une des revendications 1 à 4 caractérisé en ce que sur le dos (45) du crochet de transfert (10) est prévue une indentation (46) du genre d'une rainure, qui élargit latéralement les bords de rainure au-delà de l'épaisseur du fût.
  6. Dispositif selon l'une des revendications 1 à 5 caractérisé en ce que le fût (9) du crochet de transfert (10) ou le fût de l'aiguille (1) présente une partie ressort (6, 11) fendue à travers laquelle le fût (9) du crochet de transfert (10) peut être poussé contre le fût d'aiguille (1) et en ce qu'un pied de commande (12) est disposé au dessous ou au-dessus de la fente de la partie ressort (6, 11), ou bien en ce que la partie ressort (11) se transforme au-dessus de la fente en un appendice (21) qui comporte une rainure (22).
  7. Dispositif selon l'une des revendications 1 à 5 caractérisé par une feuille de maintien (44) qui entoure plusieurs éléments de formation de mailles, tels que, par exemple des aiguilles (1, 2, 3) et des crochets de transfert (9, 10), et qui les fixe dans une position qui correspond à la position de travail.
EP02750519A 2001-03-14 2002-03-12 Dispositif de formation de mailles sur machine Expired - Lifetime EP1368520B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE2001112277 DE10112277C1 (de) 2001-03-14 2001-03-14 Vorrichtung zum maschinellen Maschenbilden
DE10112277 2001-03-14
DE10152856 2001-11-01
DE10152856A DE10152856C1 (de) 2001-03-14 2001-11-01 Vorrichtung zum maschinellen Maschenbilden
PCT/DE2002/000866 WO2002072936A2 (fr) 2001-03-14 2002-03-12 Dispositif de formation de mailles sur machine

Publications (2)

Publication Number Publication Date
EP1368520A2 EP1368520A2 (fr) 2003-12-10
EP1368520B1 true EP1368520B1 (fr) 2013-01-09

Family

ID=26008766

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02750519A Expired - Lifetime EP1368520B1 (fr) 2001-03-14 2002-03-12 Dispositif de formation de mailles sur machine

Country Status (9)

Country Link
US (1) US6895784B2 (fr)
EP (1) EP1368520B1 (fr)
JP (1) JP2004532359A (fr)
KR (1) KR100627534B1 (fr)
CN (1) CN100436686C (fr)
BR (1) BR0208059A (fr)
CZ (1) CZ20032149A3 (fr)
DE (1) DE10152856C1 (fr)
WO (1) WO2002072936A2 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1416078B1 (fr) * 2002-10-31 2007-09-26 Groz-Beckert KG Elément de formation de maille pour métier a tricoter trame ou chaîne
DE10254217B4 (de) * 2002-10-31 2006-04-27 Groz-Beckert Kg Strickwerkzeug für Strick- oder für Kettenwirkmaschinen
DE10335464B4 (de) * 2003-08-02 2006-06-14 Groz-Beckert Kg Verfahren zum maschinellen Maschenbilden mit zugehörigen Maschenbildungselementen
EP1710336B1 (fr) * 2005-04-07 2009-06-10 H. Stoll GmbH & Co. KG Aiguille à tricoter avec un taquet coulissant et verrouillable
EP1760176A1 (fr) * 2005-08-29 2007-03-07 Anton Percy Spielmann Dispositif pour tricoter des mailles à l'envers et à l'endroit sur une même fonture
EP1767679B1 (fr) * 2005-09-22 2008-03-26 Groz-Beckert KG Outil de tricotage
US9618009B2 (en) 2013-12-30 2017-04-11 Regal Beloit America, Inc. Centrifugal blower assembly and method for assembling the same
KR102496370B1 (ko) 2016-03-07 2023-02-06 삼성전자주식회사 레일장치 및 이를 갖는 냉장고
CN109706615B (zh) * 2019-02-28 2023-09-29 宁波慈星股份有限公司 一种横机中的复合针
CN109750413B (zh) * 2019-02-28 2023-09-29 宁波慈星股份有限公司 一种用于横机的复合针
CN110029436B (zh) * 2019-04-11 2024-02-09 宁波慈星股份有限公司 横机的翻针传动机构
CN110438655B (zh) * 2019-08-13 2024-04-02 宁波慈星股份有限公司 一种横机的复合针
CN113512815B (zh) * 2021-07-16 2022-10-18 广州市赛德精工科技有限公司 一种经编机槽针

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
US1877503A (en) * 1928-01-17 1932-09-13 Hemphill Co Knitting machine needle assemblage
DE2647185C3 (de) * 1976-10-19 1981-01-08 Ulrich 7470 Albstadt Hofmann Verfahren zur maschinellen Maschenbildung
IT1104303B (it) * 1978-12-21 1985-10-21 Conti Gianni Macchina da maglieria con aghisenza paletta cooperanti con elementi ad uncino esterni
DE2908022A1 (de) 1979-03-01 1980-09-04 Terrot Strickmaschinen Gmbh Schiebernadel fuer strickmaschinen
DE2909963C2 (de) * 1979-03-14 1983-02-03 Ulrich 7470 Albstadt Hofmann Verfahren zur maschinellen Maschenbildung
DE3706856C1 (de) * 1987-03-04 1988-03-03 Groz & Soehne Theodor Gestanztes Strickwerkzeug fuer Textilmaschinen,insbesondere Strick- und Wirkmaschinen
CN2231265Y (zh) * 1995-09-25 1996-07-17 林再兴 构造经改进的织针装置

Also Published As

Publication number Publication date
US6895784B2 (en) 2005-05-24
EP1368520A2 (fr) 2003-12-10
JP2004532359A (ja) 2004-10-21
WO2002072936A3 (fr) 2002-12-12
CZ20032149A3 (cs) 2004-01-14
KR100627534B1 (ko) 2006-09-21
WO2002072936A2 (fr) 2002-09-19
DE10152856C1 (de) 2003-04-24
US20040093910A1 (en) 2004-05-20
CN100436686C (zh) 2008-11-26
CN1545579A (zh) 2004-11-10
BR0208059A (pt) 2004-03-02
KR20030090671A (ko) 2003-11-28

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