EP2196570B1 - Métier à tricoter circulaire sans platine de retenue - Google Patents

Métier à tricoter circulaire sans platine de retenue Download PDF

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Publication number
EP2196570B1
EP2196570B1 EP08171576A EP08171576A EP2196570B1 EP 2196570 B1 EP2196570 B1 EP 2196570B1 EP 08171576 A EP08171576 A EP 08171576A EP 08171576 A EP08171576 A EP 08171576A EP 2196570 B1 EP2196570 B1 EP 2196570B1
Authority
EP
European Patent Office
Prior art keywords
knitting machine
needles
runner
circular knitting
knitting
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.)
Not-in-force
Application number
EP08171576A
Other languages
German (de)
English (en)
Other versions
EP2196570A1 (fr
Inventor
Uwe Stingel
Frank Weihing
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 DE502008003199T priority Critical patent/DE502008003199D1/de
Priority to EP08171576A priority patent/EP2196570B1/fr
Priority to KR1020090113023A priority patent/KR101118028B1/ko
Priority to US12/629,173 priority patent/US7810357B2/en
Priority to JP2009281034A priority patent/JP2010156095A/ja
Priority to TW098142404A priority patent/TW201037114A/zh
Priority to CN2009102532238A priority patent/CN101748556B/zh
Publication of EP2196570A1 publication Critical patent/EP2196570A1/fr
Application granted granted Critical
Publication of EP2196570B1 publication Critical patent/EP2196570B1/fr
Not-in-force 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
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/54—Thread guides
    • D04B15/58—Thread guides for circular knitting machines; Thread-changing devices
    • 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
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • 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
    • 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
    • D04B15/08—Needle latch openers; Brushes
    • 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

Definitions

  • the invention relates to a circular knitting machine that can do without hold-down boards.
  • Circular knitting machines usually have a knitting cylinder which has on its outer periphery a large number of needle channels extending in the cylinder longitudinal direction. In each of these needle channels sitting knitting needles, usually latch needles. The knitting needles are moved back and forth in the needle channels. Serve the castle curves or castle parts that are included in lock segments and form the castle mantle. This surrounds the needle cylinder and has at least one guideway. The knitting needles are provided with feet, which run on the guideway and thereby give the knitting needles a required reciprocating longitudinal movement with a rotation of the knitting cylinder.
  • the knitting needles of the rotating knitting cylinder is fed via a generally stationary yarn guide thread.
  • the result is an example hose-like knit hanging on the knitting needles.
  • containment / tee boards are usually provided, which are arranged adjacent to the knitting needles.
  • the containment / debarking boards cause a considerable construction effort.
  • they require a space that can limit the fineness of the division in knitting machines.
  • the knitting needles of the needle cylinder are divided into two groups and driven by different guide curves of the needle lock. For example, at first, the even-numbered knitting needles are expelled, while the non-even-numbered knitting needles interposed therebetween are not yet expelled, thereby assuming the function of holding down the knitted fabric. After the sprouting of the even-numbered knitting needles, the odd-numbered knitting needles are then expelled, after which the knitting needles, ie both the even-numbered and the odd-numbered knitting needles, are retracted one after the other to form stitches.
  • the open tongues of the knitting needles may abut on other machine elements, such as the yarn guide. This can lead to wear of the knitting needles.
  • the tongues of the already driven knitting needles to be kept in certain positions on their way in the open position.
  • the yarn guide of the knitting machine according to the invention is associated with a runner, which is provided with a sliding surface for tongues of the latch needles.
  • the blade is positioned so that the tongues of the incoming knitting needles gently start against their sliding surface and are held in the open position where necessary.
  • the runner extends in the circumferential direction of the knitting cylinder, i. in a direction predetermined by the circumferential movement of the knitting cylinder.
  • the runner preferably has a rounded tip, which forms a contact surface oriented obliquely to the direction of movement of the knitting needles. Between the tip of the skid and the thread guide a clearance is provided.
  • the runner and also the thread guide can be used to hold the open tongues of the expelled latch needles in the open position.
  • the thread guide can have a sliding surface for tongues of the latch needles. Its sliding surface is preferably a smooth, stepless surface on which tongues of the latch needles can slide as the driven knitting needles move relative to the thread guide due to relative rotation of the knitting cylinder.
  • the sliding surface of the thread guide preferably extends in the circumferential direction, wherein it may have a contour which follows approximately the path taken by the expelled knitting needles.
  • a clearance is preferably provided between the runner and the thread guide.
  • This clearance is largely determined by the positioning between runner and thread guide. For example, the clearance between the top the skid and the thread guide are enlarged, thereby obtaining more space for the tongue movement in this space. This allows tongues of the latch needles to pivot in this clearance during the pop-up motion without impacting the skid or thread guide.
  • the adjustment of the runner to the thread guide depends on the settings of the knitting machine and the yarn to be processed.
  • the thread guide can take on three functions. For one thing, he has the task of the knitting point to supply the thread. Further, it may be configured and adjusted to hold the tongue of every other needles in reserve while expelling the remaining needles. In addition, he can still keep the tongues already expelled needles open.
  • the functions can also be divided between the thread guide and the runner as follows:
  • the thread guide takes over the thread feed and the cover of the tongues located in the shoot.
  • the additionally provided runner undertakes the task of holding down the tongues of the already first driven needles in such a way that a secure holding down of the knitted goods during the expulsion of the remaining needles in the subsequent expulsion process is ensured.
  • the runner is arranged relative to the thread guide adjustable. This is an optimal fulfillment of all three above-mentioned tasks of the yarn guide for the production of different bindings pattern and in the processing of different yarns possible. Besides that is Optimal adjustment of the thread feed and hold function, independently possible.
  • the runner acts as a tongue hold-down element.
  • the runner can be connected to the thread guide via a preferably adjustable holder.
  • the skid may be coupled to other machine parts, such as a segment of the needle lock.
  • the pad can also be connected to the central pad. This can be done, for example, that the skid is connected via a suitable frame with the storage of the knitting cylinder.
  • FIG. 1 is a knitting point of a knitting machine illustrated.
  • the knitting point is determined by a yarn guide 1, which is preferably held substantially stationary on the knitting machine. It has a holding leg 2 and a preferably horizontally extending away from this section 3.
  • the section 3 is provided at its free end with at least one eyelet 4, for example in the form of a passage opening, via which the knitting point, a thread 5 is fed.
  • the yarn guide 1 has, in particular at its portion 3, a preferably paragraph-free and smooth sliding surface 6.
  • the knitting machine also has knitting needles in FIG. 1 are indicated only schematically. They are in needle channels 7 of a knitting cylinder 8, as it is made FIG. 3 fragmentary, vertically slidably mounted.
  • vertical is meant a direction at least substantially parallel to the axis of rotation of the knitting cylinder.
  • latch needles 9, 10, in FIG. 1 each are provided with a letter index for better distinction.
  • the latch needles 9 belong to a first group and the latch needles 10 belong to a second group.
  • Each latch needle 9, 10 has at its upper end a hook 11, which is associated with a pivotally mounted tongue 12.
  • the tongue 12 may open or close the hook 11.
  • the latch needles 9, 10 are driven by a rotation of the knitting cylinder 8 with their feet in contact with different cam curves of a needle lock stand. For this purpose, the latch needles 9 their drive foot at a different location than the latch needles 10.
  • FIG. 3 are different castle curves 13, 14 indicated schematically.
  • the cam curves 13, 14 are guide tracks, which are formed on a so-called knitting lock, which surrounds the knitting cylinder like a ring.
  • the knitting cylinder 8 continuously rotates the feet of the latch needles 9, 10 along the resting cam curves 13, 14, whereby the latch needles 9, 10 of the two groups, as in FIGS. 1 and 2 indicated, different curves 15, 16 are moved following to effect the knitting process for producing a knitted fabric 17.
  • the located under the thread guide 1, located knitting needles 9, 10 form a knitting point.
  • the yarn guide 1 has at its lower edge an approximately trapezoidal cut-out, for example, in which a runner 18 is arranged.
  • This blade 18 serves to hold the tongues 12 of the driven latch needles 9, 10 in the open position.
  • the runner on a smooth sliding surface 19, which she turns the Switzerlandnennadeln 9, 10.
  • the blade may have at one end 20, at which the latch needles 9, 10 arrive in the course of the knitting operation, a part bent away from the needles.
  • the extending on this part section of the sliding surface 19 forms a run-on slope for the following tongues 12th
  • the skid 18 may be attached to the yarn guide 1, for example.
  • the tab 21 is preferably outwardly, ie bent away from the latch needles 9, 10, in order to release the free space 22, 22 'and to prevent that tongues 12 that pass through the clearance 22 abut the tab 21.
  • the tab 21 forms an adjustable holding device with oblong holes 23, 24 at both ends of the tab 21, wherein the elongated holes 23, 24 extend in different directions. They are penetrated by fastening screws. Thanks to the elongated holes 23, 24, the runner 18 can be adjusted in runner longitudinal direction and in the vertical direction or needle longitudinal direction.
  • the knitting machine can be equipped with ordinary latch needles.
  • latch needles are used, the in FIG. 5 illustrated latch needle 9 same.
  • the peculiarity of the latch needle 9 lies in the formation of the tongue 12. This is like a normal tongue in a tongue slot 25 pivotally mounted.
  • a pin 26 For storage, a pin 26.
  • the tongue 12 carries at its end a spoon-shaped tongue head 27 with a recess 28, which is also referred to as "Zasche".
  • the depth and position of the recess 28 is dimensioned so that the closing tongue with the recess 28, the top 29 of the hook 11 covers.
  • the peculiarity of the tongue 12 is a grinding or sliding portion 30 with a crowned grinding or sliding surface 31.
  • the sliding portion 30 extends in extension of the tongue shaft approximately radially to the pin 26 of the tongue head 27 like a nose away.
  • the preferably crowned sliding surface 31 is provided, which can in particular come into sliding contact with the sliding surface 19 of the blade 18.
  • a knitting machine has a thread guide 1, to which a runner 18 is assigned.
  • the blade 18 is used to keep open tongues of expelled needles of a first group while the needles of a second group are expelled. Due to the staggered expulsion of latch needles 9 and 10 of a first and a second group and by the alternating arrangement of needles of the first and second group, an increase of the knitted fabric during the expulsion of the needles is prevented without the aid of Einsch conducted- / teeingplatinen. Because a separate from the yarn guide 1 blade 18 is used to hold the tongues, their position can be optimally adjusted regardless of the position of the yarn guide.

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

Claims (11)

  1. Métier à tricoter circulaire,
    comprenant un cylindre de tricotage (8) qui présente des rainures d'aiguille pour des aiguilles à clapet (9, 10),
    comprenant un guide-fil (1) qui présente un oeillet (4) pour amener le fil à un emplacement de tricotage, et
    comprenant un patin (18) qui présente également une surface de glissement (19) pour des clapets ouverts des aiguilles à clapet (9, 10), et qui est disposé avec possibilité de réglage par rapport au guide-fil (1).
  2. Métier à tricoter circulaire selon la revendication 1, caractérisé par le fait qu'il est prévu un espace libre (22) entre le guide-fil (1) et le patin (18).
  3. Métier à tricoter circulaire selon la revendication 1, caractérisé par le fait que le guide-fil (1) présente au moins une surface de glissement (6) pour des clapets des aiguilles à clapet (9, 10).
  4. Métier à tricoter circulaire selon la revendication 1, caractérisé par le fait que les aiguilles à clapet (9, 10) sont associées à des voies de guidage (13, 14) différentes dans l'enveloppe du système de cames du métier à tricoter, de sorte que les aiguilles à clapet (9, 10) appartiennent à deux groupes qui sont soumis à des déplacements différents.
  5. Métier à tricoter circulaire selon la revendication 1, caractérisé par le fait que les aiguilles à clapet (9) du premier groupe sont disposées en alternance avec les aiguilles à clapet (10) du deuxième groupe.
  6. Métier à tricoter circulaire selon la revendication 1, caractérisé par le fait que le patin (18) est disposé dans un évidement du guide-fil (1).
  7. Métier à tricoter circulaire selon la revendication 1, caractérisé par le fait que le patin (18) est relié au guide-fil (1).
  8. Métier à tricoter circulaire selon la revendication 1, caractérisé par le fait que le patin (18) est monté avec possibilité de réglage dans le sens longitudinal du patin.
  9. Métier à tricoter circulaire selon la revendication 1, caractérisé par le fait que le patin (18) est monté avec possibilité de réglage dans le sens vertical.
  10. Métier à tricoter circulaire selon la revendication 1, caractérisé par le fait que le patin (18) est porté par un support (21) qui enjambe l'espace libre (22) et est plié de manière à être écarté de celui-ci.
  11. Métier à tricoter circulaire selon la revendication 1, caractérisé par le fait que le patin (18) est porté par un système de cames dont les cames (13, 14) commandent les aiguilles à clapet (9, 10).
EP08171576A 2008-12-12 2008-12-12 Métier à tricoter circulaire sans platine de retenue Not-in-force EP2196570B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE502008003199T DE502008003199D1 (de) 2008-12-12 2008-12-12 Rundstrickmaschine ohne Niederhalteplatinen
EP08171576A EP2196570B1 (fr) 2008-12-12 2008-12-12 Métier à tricoter circulaire sans platine de retenue
KR1020090113023A KR101118028B1 (ko) 2008-12-12 2009-11-23 홀딩 다운 싱커들이 없는 편물기
US12/629,173 US7810357B2 (en) 2008-12-12 2009-12-02 Knitting machine without holding-down sinkers
JP2009281034A JP2010156095A (ja) 2008-12-12 2009-12-10 ホールドダウン・シンカを有しない編み機
TW098142404A TW201037114A (en) 2008-12-12 2009-12-11 Knitting machine without holding-down sinkers
CN2009102532238A CN101748556B (zh) 2008-12-12 2009-12-11 不具有握持沉降片的针织机

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08171576A EP2196570B1 (fr) 2008-12-12 2008-12-12 Métier à tricoter circulaire sans platine de retenue

Publications (2)

Publication Number Publication Date
EP2196570A1 EP2196570A1 (fr) 2010-06-16
EP2196570B1 true EP2196570B1 (fr) 2011-04-13

Family

ID=40262435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08171576A Not-in-force EP2196570B1 (fr) 2008-12-12 2008-12-12 Métier à tricoter circulaire sans platine de retenue

Country Status (7)

Country Link
US (1) US7810357B2 (fr)
EP (1) EP2196570B1 (fr)
JP (1) JP2010156095A (fr)
KR (1) KR101118028B1 (fr)
CN (1) CN101748556B (fr)
DE (1) DE502008003199D1 (fr)
TW (1) TW201037114A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012062585A (ja) * 2010-09-14 2012-03-29 Precision Fukuhara Works Ltd オフセット編成用糸ガイド装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US622542A (en) * 1899-04-04 Knitting-machine
US1116190A (en) * 1909-10-06 1914-11-03 Scott & Williams Inc Knitting-machine.
GB471694A (en) * 1936-04-16 1937-09-09 Wildt & Co Ltd Improvements in or relating to circular knitting machines
FR1220206A (fr) * 1958-02-07 1960-05-23 Stibbe G & Co Ltd Perfectionnements apportés aux machines à tricoter circulaires
DE2327228A1 (de) * 1973-05-28 1974-12-19 Morat Gmbh Franz Einrichtung mit einer magnetpolflaeche zum oeffnen bzw. schliessen der zungennadeln einer strickmaschine
JPS6211990Y2 (fr) * 1981-04-06 1987-03-24
DE3324245C2 (de) * 1983-07-06 1986-03-20 Memminger Gmbh, 7290 Freudenstadt Fadenzufuhreinrichtung für Strick- oder Wirkmaschinen
US4916925A (en) * 1988-10-31 1990-04-17 Monarch Knitting Machinery Corporation Needle latch cushioning member for circular knitting machines
DE3920408A1 (de) * 1989-06-22 1991-01-03 Sipra Patent Beteiligung Fadenzufuhreinrichtung mit wenigstens einem fadenfuehrer fuer eine rundstrickmaschine
JP4177941B2 (ja) * 1999-09-13 2008-11-05 株式会社福原精機製作所 編機のラッチオープナー
DE10241248A1 (de) * 2002-09-06 2004-03-18 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Rundstrickmaschine mit wenigstens einem beweglichen Fadenführer
US6827311B2 (en) * 2003-04-07 2004-12-07 Honeywell International, Inc. Flight control actuation system
BRPI0520820A2 (pt) 2005-12-29 2009-06-09 Leopoldo Bertagnoli método para fabricar tecido de malha e máquina de fabricar tecido de malha relacionada

Also Published As

Publication number Publication date
CN101748556A (zh) 2010-06-23
KR101118028B1 (ko) 2012-02-24
US20100147035A1 (en) 2010-06-17
TW201037114A (en) 2010-10-16
JP2010156095A (ja) 2010-07-15
DE502008003199D1 (de) 2011-05-26
US7810357B2 (en) 2010-10-12
CN101748556B (zh) 2012-03-21
EP2196570A1 (fr) 2010-06-16
KR20100068190A (ko) 2010-06-22

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