EP1887117B1 - Aiguille à clapet pour machine textile à former des mailles - Google Patents

Aiguille à clapet pour machine textile à former des mailles Download PDF

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Publication number
EP1887117B1
EP1887117B1 EP06016765A EP06016765A EP1887117B1 EP 1887117 B1 EP1887117 B1 EP 1887117B1 EP 06016765 A EP06016765 A EP 06016765A EP 06016765 A EP06016765 A EP 06016765A EP 1887117 B1 EP1887117 B1 EP 1887117B1
Authority
EP
European Patent Office
Prior art keywords
section
transfer
spring
recess
needle
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 - Fee Related
Application number
EP06016765A
Other languages
German (de)
English (en)
Other versions
EP1887117A1 (fr
Inventor
Zhiyong Dr. Wang
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
Application filed by Groz Beckert KG filed Critical Groz Beckert KG
Priority to DE502006006452T priority Critical patent/DE502006006452D1/de
Priority to EP06016765A priority patent/EP1887117B1/fr
Priority to KR1020070079378A priority patent/KR100908799B1/ko
Priority to CN2007101408747A priority patent/CN101122064B/zh
Priority to JP2007211067A priority patent/JP2008045263A/ja
Priority to US11/889,423 priority patent/US7509820B2/en
Publication of EP1887117A1 publication Critical patent/EP1887117A1/fr
Application granted granted Critical
Publication of EP1887117B1 publication Critical patent/EP1887117B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D04B35/04—Latch needles
    • 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

Definitions

  • the invention relates to a knitting machine needle for a stitch-forming machine, in particular for a knitting machine for producing textile surfaces.
  • Knitting machines with latch needles and / or slide needles can be used to produce, for example, patterned knitted fabrics. According to the pattern, there are single stitches from one knitting machine needle to another knitting machine needle.
  • the needles which are called transfer needles or Um Kunststoffadeln, special mesh transfer elements.
  • latch needles formed as latch needles.
  • a latch needle opens and closes by means of a tongue, which is pivotally mounted in a tongue slot, the hook interior. It has a mesh transfer element in the form of a transfer spring on one of its flat sides.
  • a stitch which is provided for the Um Stungang, can be received by an adjacent or opposite needle, this runs along the needle body on the transfer spring and is widened.
  • the needle body has a rounded pocket, in which the tip of the cap spring dives, so that the sliding of the stitch on the cap spring is not hindered.
  • a lateral stress on the transfer spring by the sliding stitch or the fabric take-off causes the tip of the transfer spring in the rounded pocket in the needle longitudinal direction moves back and forth.
  • the capstan undergoes a permanent bending, which can lead to the fact that the tip is no longer completely immersed in the pocket of the needle body.
  • An outside of the bag standing tip of the suspension spring obstructs the mesh transfer process.
  • the slip of the mesh or half-stitch can be hindered by the protruding tip.
  • the half-stitch can be impaled by the point.
  • the cap spring By this enlargement of the stitch loop of the half-stitch in conjunction with the thread tension of the fabric take-off the cap spring is loaded, being supported with its spring tip on the bottom of the needle bag.
  • the force acting on the cap spring causes the spring tip to move in the direction of the needle hook, with the space between the cap spring and the needle body slightly decreasing.
  • the load in the region of the tip of the suspension spring due to the acting force of the semi-mesh and the fabric take-off can be so great that the transfer spring bends so much that the tip is no longer completely absorbed by the spring pocket. This can cause the tip of the cap spring to impale the half-stitch when it is to slide over the needle body. As a result, the half-stitch no longer slides on the cap spring. If the tip of the cap spring is lifted so far that the half stitch passes under the top of the cap spring, a looping of a stitch is no longer possible. A safe transfer of knitwear is then no longer guaranteed.
  • a Um healthyadel which is provided with side pockets.
  • the pockets have a rounded bottom so that their depth is varied differently depending on the measured axial position.
  • the cap spring lies with its tip on the bottom of a bag, the depth of which decreases starting from the top of the Umhebfeder.
  • the DE 31 45 708 A1 discloses a capstan spring bridging a recess.
  • the recess is arranged obliquely to the needle center plane and thus has varying depths.
  • the tip of the Um dealadel lies on a flat pocket bottom, which determines a largely uniform depth.
  • the transfer needle according to the invention has on its lateral surface formed as a flat side on a cap spring, which preferably one-sided, i. connected at one end to the base of the transfer needle. It forms with the main body of the needle a gap into which a hook of another needle can dive to take over a half-stitch.
  • the transfer needle has at one end a stitch forming area comprising a hook and a closing element associated with the hook, e.g. is formed in the form of a tongue or a slider.
  • the other end of the transfer needle comprises at least one means for reciprocating the transfer needle. This movement means is preferably in the form of at least one foot.
  • the space into which a hook of another needle for Um warmth restructuringen dives is limited in the direction of the moving means by fastening means of the cap spring on the body of the transfer needle.
  • the cap spring can be positively attached, for example by rivets or embossing surveys or cohesively, for example, by welding or gluing to the main body of the needle.
  • this intermediate space is delimited by a recess in the form of a pocket, into which the tongue-shaped tip of the transfer spring dips.
  • a closed receiving space which can be opened in the direction of the needle hook by the resilient tip of the cap spring is lifted. This is usually the case when the transfer needle for stitch transfer has detected the half-stitch to be taken and is then withdrawn from the intermediate space.
  • the capstan spring is in a so-called initial condition.
  • the suspension spring is mounted almost load-free or with low bias on the side surface of the transfer needle.
  • a cap spring which is mounted with bias, experiences the tip of the cap spring a small load.
  • their tip is located in the recess in the main body of the needle and is completely absorbed by this recess.
  • the half-stitch slides on the capstan. To initiate this process, the knitting machine needle is expelled further than necessary for the normal stitch forming operation.
  • the recess which receives the tip of the cap spring in the initial state, is formed in the form of an elongated, preferably rectangular pocket. It is closed at the edge and thus surrounded by a closed preferably flat surface.
  • the edge of the bag can go edge-free in the flat side of the transfer needle. This ensures that when sliding the stitches or half-stitches on the main body of the needle, these are not injured or severed. If necessary, the edge of the bag may have small breaks.
  • the sides of the bag merge seamlessly into the bottom of the bag.
  • the bottom of the bag which has two sections, is divided into two bottom sections.
  • the tip of the cap spring abuts against the first bottom portion of the bag when in the initial state. In this case, the tip of the cap spring cooperates with the end region of the first bottom section and defines an axial position. Following this axial position immediately begins the second bottom portion of the bag.
  • the depth of the first bottom portion of the pocket is different from the depth of the second bottom portion, being smaller.
  • the depths are measured perpendicular to the flat side, which has the pocket and approximately in the middle of the bottom sections. They extend between the bottom sections and the flat side of the transfer needle.
  • the transition region between the first and the second section may be in the form of an edge-free step or a sloping inclined ramp.
  • the transition region which may be flat or rounded, is associated with the second section.
  • the bottom or bottom portions of the pocket may be aligned parallel to the flat side of the transfer needle.
  • the first or the second bottom portion may also be arranged at an angle to the flat side.
  • the second bottom portion may be arranged at an acute angle to the flat side having the pocket. In this acute-angled arrangement, the angle between the region of the flat side comprising the second portion and the second bottom portion extends. The depth of the second bottom portion then increases from the axial position toward the hook of the knitting needle.
  • the bottom sections can assume different shapes, so they can be formed as flat surfaces, trough-shaped or curved molding surfaces.
  • the depth of the second bottom portion is, in the region in which the tip of the cap spring under load, greater than the depth of the first bottom portion on which the tip of the cap spring, when it is in the initial state, is applied. The depth ratios are not affected by different shapes of the soil sections.
  • FIG. 1 shows the front portion of a transfer needle 1.
  • the rear end which includes the moving means to reciprocate the transfer needle 1, is not shown.
  • the transfer needle 1 has a needle body 2, a shaft 3 and at its end a hook 24 with an associated closing element 25.
  • the shaft 2 is divided into a high portion 26 and a lower portion 27. Both portions 26, 27 protrude from a common needle back 6 on.
  • the needle body 2 has a step 28 on its upper side 7. On both sides of the step 28, the needle body extends in a longitudinal direction L which coincides with the main movement direction of the transfer needle 1. Between the needle top 7 and the needle back 6, the side surfaces 4 and 5, which delimit the needle body 2 side extend.
  • a capping spring 8 is attached on the side surface 4.
  • the attachment section 10 lies in the region of the high shaft section 26.
  • the transfer spring 8 is held on the shaft section 26 with known attachment means.
  • the end of the nib 11 defines an axial position 21 which divides the recess 12 into two sections, a first section 14 and a second section 15.
  • FIG. 2 shows a Um spaceadel invention, which has a slider as a closing element. Otherwise, the features, in particular the inventive features of a transfer needle 1 according to FIG. 2 , with which a transfer needle 1 after FIG. 1 identical. The above description applies accordingly.
  • FIG. 3 shows a section through the recess 12. It can be seen that the recess 12 is divided into a first portion 14 and a second portion 15. Both sections 14, 15 adjoin each other at the axial position 21 seamlessly.
  • the axial position 21 against which the spring tip 11 of the transfer spring 8 rests when it is in the initial state is assigned to the first section 14.
  • This section 14 extends from the axial position 21 to the outlet of the recess 12 in FIG. 3 on the right side of the illustration.
  • the outlet of the first section 14 is rounded or formed in another form.
  • the edge 23 of the recess 12, which is formed in the form of a pocket 22 goes edge-free, preferably rounded, in the side surface 4 on.
  • This edge 23 comprises the side surfaces of the pocket 22 and may also be referred to as a surface edge.
  • the second portion 15 of the pocket 22 extends from the axial position 21 to the in FIG. 3 not shown outlet on the left side.
  • To this second section 15 includes a transition region 18, which extends to a small extent in the first section 14.
  • This transition region 18 connects the bottom portion 16 of the first portion 14 with the bottom portion 17 of the second portion 15 with each other. In this case, the transition region 18 is smoothed or rounded without steps and edges.
  • the bottom portion 16 and the bottom portion 17 together form the bottom 20 of the recess 12.
  • the bottom portions 16 and 17 are arranged parallel to the side surface 4 and 5, respectively.
  • the transition region 18 is a part of the bottom portion 17.
  • the transition region 18 may be formed as a sloping ramp 19. It connects the bottom portion 16 of the first portion 14 and the bottom portion 17 of the second portion 15.
  • the bottom portion 16 of the first portion 14 has a smaller depth T1 as the bottom portion 17 of the second portion 16. The depths are measured perpendicular to the bottom portions 16, 17. They extend from the side surface 4 to the corresponding bottom portion.
  • FIG. 3 shows the position of the spring tip 11 of the transfer spring 8 when it is loaded. It can be seen that due to the greater depth T2 of the second recess 15 sufficient space is available to the due to the load in the plane according to FIG. 3 downwardly tapering spring tip 11 'record. Thus, the preservation of the shape of the cap spring 8 is ensured. When relieving the transfer spring 8, the spring tip 11 goes back to its original position. This starting position of the spring tip 11 is shown by solid lines.
  • FIG. 4 shows another embodiment of the recess 12.
  • the identical reference numerals apply according to the above description.
  • the bottom portion 16 of the first portion 14 and the bottom portion 17 of the second portion 15 are arranged at an acute angle to the side surface 4.
  • the transition region 18 according to FIG. 4 is an extension of the bottom portion 16 of the first portion 14 of the recess 12.
  • This transition region can be arranged at the same angle as the bottom portion 16 to the side surface 4. But it can also be arranged at a different angle. Preferably, it is arranged sloping between the first floor section 16 and the second floor section 17. However, it is also possible that both the bottom portion 16, the bottom portion 17 and the transition region 18 is arranged at the same acute angle to the side surface 4.
  • the changed position of the spring tip 11 is shown in dashed lines with the reference numeral 11 'in FIG. 4 shown.
  • the depth T2 in the region of the changed position of the spring tip 11 'of the transfer spring 8 under load is greater than the depth T1 in the region of the starting position of the spring tip 11 when the transfer spring 8 is in the initial state.
  • FIG. 5 shows another embodiment of the recess 12. This differs from the embodiments described above in that the bottom portion 17 from a lowest point T2 toward the end of the second portion 15, that is, away from the axial position 21, increases, and thus the depth T2 reduced in size.
  • Decisive for a recess 12 according to the invention is that the transition region 18 is formed sloping, so that in the second section 15 space for the spring tip 11 is formed when it extends under load of the transfer spring 8 along its central axis 29.
  • the transfer needle 1 works as in FIG. 6 illustrated.
  • the transfer needle 1 is expelled in the longitudinal direction L.
  • the semi-mesh HM slides along the needle shaft 3, wherein it opens the closing element 25, over the shaft 3 and the closure member 25 away to the stage 28. Since the spring tip 11 is received by the recess 12, it does not hinder the sliding of the semi-mesh HM ,
  • the half-stitch HM is widened by the capping spring 8 projecting from the needle base body 2, so that another needle, which dips into the gap 9 between the needle body 2 and the cap spring 8, the expanded half-stitch HM can take.
  • the cap spring 8 When widening the half-stitch HM, the cap spring 8 is moved with a force in the direction of the arrow F (FIG. FIGS. 3, 4, 5 ) claimed. This results in that the spring tip 11 moves in the direction of its central axis 29 and the position 11 '(FIG. FIGS. 3, 4, 5 ) occupies.
  • the additional space provided by a recess 12 according to the invention provides the tip 11 of the cap spring 8 with sufficient clearance to change its position in accordance with the applied force F. This ensures that the cap spring 8, in particular its tip 11, undergoes no permanent bending, which hinder the sliding of the semi-mesh HM on the needle shaft 3.
  • the transfer process is completed by the withdrawal of the transfer needle 1, which originally carries the Halbmasche HM. Due to the complete retraction of the transfer needle 1, the half-stitch HM is transferred to the other needle and is located in the hook interior.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Buckles (AREA)

Claims (14)

  1. Aiguille de transfert (1) destinée à des machines à former des mailles, comportant un corps d'aiguille (2) qui présente un fût oblong (3) doté de surfaces latérales (4, 5), un dos d'aiguille (6) et un côté supérieur d'aiguille (7),
    comportant un ressort de transfert (8) maintenu sur le fût (3), lequel ressort de transfert présente à une extrémité une section de fixation (10) et à l'autre extrémité une pointe de ressort (11) et détermine un espace intermédiaire (9) avec le fût (3),
    comportant un évidement (12) dans lequel s'enfonce la pointe de ressort (11),
    caractérisée en ce que
    l'évidement (12) présente une première section (14) et une deuxième section (15), la profondeur (T2) de la deuxième section (15), dans la zone où la pointe de ressort (11) du ressort de transfert (8) est en appui sous contrainte, étant supérieure à la profondeur (T1) de la première section (14) sur laquelle la pointe de ressort (11) du ressort de transfert (8) est en appui, lorsque celui-ci est à l'état initial.
  2. Aiguille de transfert selon la revendication 1, caractérisée en ce que le logement (22) présente un bord fermé (23).
  3. Aiguille de transfert selon la revendication 2, caractérisée en ce que le bord (23) du logement (22) est limité par la surface latérale (4, 5).
  4. Aiguille de transfert selon la revendication 2, caractérisée en ce que le bord (23) du logement (22) a une conformation exempte d'interruption.
  5. Aiguille de transfert selon la revendication 2, caractérisée en ce que l'évidement (12) présente un fond (20) sur lequel la pointe de ressort (11) est en appui.
  6. Aiguille de transfert selon la revendication 1, caractérisée en ce que la première section (14) et la deuxième section (15) de l'évidement (12) se rejoignent par une zone de transition (18) au niveau d'un emplacement axial (21) où se termine la pointe de ressort (11).
  7. Aiguille de transfert selon la revendication 6, caractérisée en ce que la zone de transition (18) a une conformation exempte d'arête et/ou est arrondie.
  8. Aiguille de transfert selon la revendication 6, caractérisée en ce que la zone de transition (18) passe à partir de la première section (14) de l'évidement (12) à la deuxième section (15) de l'évidement (12) en étant inclinée, en s'abaissant et/ou a une conformation de rampe (19).
  9. Aiguille de transfert selon la revendication 6, caractérisée en ce que la zone de transition (18) a une conformation de surface plane.
  10. Aiguille de transfert selon la revendication 1, caractérisée en ce que la pointe de ressort (11) se trouve, à l'état initial, d'abord en appui avec la première section (14) de l'évidement (12) et, sous contrainte, avec la deuxième section (15) de l'évidement (12).
  11. Aiguille de transfert selon la revendication 5, caractérisée en ce que le fond (20) de l'évidement (12) présente une section de fond (16) qui est affectée à la première section (14) et qui est disposée parallèlement à la surface latérale (4, 5) ou selon un angle aigu par rapport à celle-ci.
  12. Aiguille de transfert selon la revendication 5, caractérisée en ce que le fond (20) de l'évidement (12) présente une section de fond (17) qui est affectée à la deuxième section (15) et qui est disposée parallèlement à la surface latérale (4, 5) ou selon un angle aigu par rapport à celle-ci.
  13. Aiguille de transfert selon la revendication 1, caractérisée en ce que la profondeur (T2) de la deuxième section (15) de l'évidement (12) n'est pas constante.
  14. Aiguille de transfert selon la revendication 13, caractérisée en ce que la profondeur (T2) de la deuxième section (15) augmente à partir d'un emplacement axial (21) où se termine la pointe de ressort (11) et en s'écartant de la section de fixation (10) du ressort de transfert (8).
EP06016765A 2006-08-11 2006-08-11 Aiguille à clapet pour machine textile à former des mailles Expired - Fee Related EP1887117B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE502006006452T DE502006006452D1 (de) 2006-08-11 2006-08-11 Zungennadel für maschenbildende Textilmaschine
EP06016765A EP1887117B1 (fr) 2006-08-11 2006-08-11 Aiguille à clapet pour machine textile à former des mailles
KR1020070079378A KR100908799B1 (ko) 2006-08-11 2007-08-08 스티치 형성 섬유 기계용 래치형 바늘
CN2007101408747A CN101122064B (zh) 2006-08-11 2007-08-10 用于成圈纺织机的改挂针
JP2007211067A JP2008045263A (ja) 2006-08-11 2007-08-13 ステッチ形成編機のためのべら針
US11/889,423 US7509820B2 (en) 2006-08-11 2007-08-13 Latch-type needle for stitch-forming textile machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06016765A EP1887117B1 (fr) 2006-08-11 2006-08-11 Aiguille à clapet pour machine textile à former des mailles

Publications (2)

Publication Number Publication Date
EP1887117A1 EP1887117A1 (fr) 2008-02-13
EP1887117B1 true EP1887117B1 (fr) 2010-03-17

Family

ID=37005864

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06016765A Expired - Fee Related EP1887117B1 (fr) 2006-08-11 2006-08-11 Aiguille à clapet pour machine textile à former des mailles

Country Status (6)

Country Link
US (1) US7509820B2 (fr)
EP (1) EP1887117B1 (fr)
JP (1) JP2008045263A (fr)
KR (1) KR100908799B1 (fr)
CN (1) CN101122064B (fr)
DE (1) DE502006006452D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1948859B1 (fr) * 2005-11-18 2010-03-31 SANTONI S.p.A. Aiguille pour transferer des mailles a partir de celle-ci a des aiguilles adjacentes pour machines a tricoter ou analogues
EP2096200B1 (fr) 2008-02-27 2011-06-08 Groz-Beckert KG Aiguille de transfer avec pointe de ressort installée à l'intérieur
CN111286863A (zh) * 2020-01-14 2020-06-16 冯加林 一种织针

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US885150A (en) * 1906-02-24 1908-04-21 Powell Knitting Company Transferring device for knitting-machines.
US2667770A (en) * 1950-08-23 1954-02-02 Ordnance Gauge Company Transfer needle for knitting machines
ES238334Y (es) * 1978-08-28 1980-01-16 Mestre Mas Matias Aguja de transferencia de mallas para maquinas de tejido de punto.
ES243765Y (es) * 1979-05-24 1980-04-16 Aguja de transferencia de malla en maquinas de tejidos de punto.
ES256197Y (es) * 1981-01-27 1982-04-16 Aguja de transferencia de malla para maquinas de generos de punto
IT8321328V0 (it) * 1983-03-30 1983-03-30 Santoni & C Spa Ago del piatto composito per macchina circolare monocilindrica per calzetteria atta a produrre maglia a costa.
DE3401874A1 (de) * 1984-01-20 1985-07-25 Haase & Kühn S.A., Les Geneveys, Coffrane Umhaengenadel und verfahren zu ihrer herstellung
CH664392A5 (de) * 1984-12-18 1988-02-29 Dubied & Cie Sa E Zungennadel fuer maschenuebertragung.
IT1185187B (it) * 1985-07-04 1987-11-04 Mecmor Spa Dispositivo per il passaggio del punto da un ago per la formazione di maglia diritta ad un ago per la formazione di maglia rovescia e viceversa,in una macchina per maglieria e simili
JPH0578962A (ja) * 1991-09-17 1993-03-30 Shima Seiki Mfg Ltd 編機用コンパウンドニードル
DE19905668C2 (de) * 1999-02-11 2001-01-25 Groz Beckert Kg Umhängenadel zur Maschenübertragung
DE10227533C1 (de) * 2002-06-20 2003-12-11 Groz Beckert Kg Nadel mit Umhängefeder

Also Published As

Publication number Publication date
CN101122064B (zh) 2011-08-31
KR100908799B1 (ko) 2009-07-22
EP1887117A1 (fr) 2008-02-13
CN101122064A (zh) 2008-02-13
US20080034806A1 (en) 2008-02-14
JP2008045263A (ja) 2008-02-28
DE502006006452D1 (de) 2010-04-29
US7509820B2 (en) 2009-03-31
KR20080014630A (ko) 2008-02-14

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