EP0436313B1 - Métier à tricoter circulaire - Google Patents

Métier à tricoter circulaire Download PDF

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Publication number
EP0436313B1
EP0436313B1 EP90313333A EP90313333A EP0436313B1 EP 0436313 B1 EP0436313 B1 EP 0436313B1 EP 90313333 A EP90313333 A EP 90313333A EP 90313333 A EP90313333 A EP 90313333A EP 0436313 B1 EP0436313 B1 EP 0436313B1
Authority
EP
European Patent Office
Prior art keywords
dial
needle
knitting machine
support shaft
needle cylinder
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
EP90313333A
Other languages
German (de)
English (en)
Other versions
EP0436313A3 (en
EP0436313A2 (fr
Inventor
Shinji Kawase
Toshiyuki Tanaka
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.)
Precision Fukuhara Works Ltd
Original Assignee
Precision Fukuhara Works Ltd
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
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Application filed by Precision Fukuhara Works Ltd filed Critical Precision Fukuhara Works Ltd
Publication of EP0436313A2 publication Critical patent/EP0436313A2/fr
Publication of EP0436313A3 publication Critical patent/EP0436313A3/en
Application granted granted Critical
Publication of EP0436313B1 publication Critical patent/EP0436313B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable 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
    • D04B15/94—Driving-gear not otherwise provided for
    • 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
    • D04B15/14—Needle cylinders
    • 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
    • D04B15/18—Dials
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/06—Circular knitting machines with independently-movable needles with needle cylinder and dial for ribbed goods

Definitions

  • This invention relates to circular knitting machines and in particular to a double knit circular knitting machine having a dial which can be lifted a sufficient distance for facilitating removal and replacement of the needle cylinder and needle dial.
  • This known type of knitting machine includes a circular dial supported adjacent an opening in the upper end of the needle cylinder and a rotatable support shaft supported at its upper end on a frame support member and extending downwardly to a position adjacent the circular opening in the upper end of the needle cylinder.
  • a vertically extending support sleeve surrounds the support shaft and is supported at the upper end on the frame support member for vertical movement. The lower end of the support sleeve is fixed to the dial for supporting same.
  • a dial control is provided for lifting and lowering the support sleeve along the support shaft to lift the dial and its associated dial cam holder.
  • the dial It has been found desirable to mount the dial so that the needle cylinder can be more easily removed through the formed space above the needle cylinder. Additionally, after removal and replacement of component parts, the dial must be set to exact specifications. Thus, it is desirable to form the dial so that it may not only be more easily removed, but also readily inserted and positioned in an exact and properly adjusted position.
  • a knitting machine comprising a frame, a needle cylinder, releasably mounted upon said frame for rotative movement relative to said frame during operation of said machine, a generally vertical support shaft carried by said frame, a needle dial releasably secured to said support shaft, a support sleeve encircling said support shaft, a dial cam holder carried by said support sleeve, control means for lifting and lowering said support sleeve wherby said dial cam holder and said needle dial are vertically moved so as to provide vertical clearance between said needle dial and said needle cylinder, characterised in that said support shaft has a circular stepped portion at its lower end, said needle dial has an opening closely receiving said stepped portion of said support shaft and a support shaft engaging upper surface and an upper dial cam holder engaging surface that are flush with each other, and said vertical clearance is sufficient to permit lateral movement of said needle cylinder into and from said knitting machine.
  • the knitting machine includes a frame and a bed plate fixed on the frame.
  • a needle cylinder is supported for rotation on the bed plate and includes needles supported for vertical movement therewithin.
  • the needle cylinder has a circular opening at the upper end.
  • a frame support member extends in spaced relationship above the upper end of the needle cylinder.
  • a vertically extending rotatable support shaft is supported at the upper end on the frame support member and extends downward to a position adjacent the opening in the upper end of the needle cylinder.
  • the shaft has a diametral stepped lower end portion.
  • the needle dial is supported adjacent the opening in the upper end of the needle cylinder.
  • the dial has a shaft engaging upper surface and an upper dial cam holder engaging surface lying substantially flush with each other.
  • the needle dial opening is dimensioned substantially equal to the stepped portion on the support shaft for receiving the stepped portion of the shaft therethrough to aid in positioning same thereat.
  • Vertically extending support sleeve means surrounds the support shaft and is supported at the upper end on the frame support member for vertical movement. The lower end of the support sleeve is fixed to the dial cam holder for supporting same.
  • Dial control means lifts and lowers the support sleeve means to thereby lift and lower the dial cam holder fixed to the support sleeve. Dial control means is operable to lift the dial a sufficient distance to permit removal and replacement of the needle cylinder.
  • a bed plate 1 is supported on the upper ends of preferably three equally spaced support legs 2 and 3 only two of which are illustrated.
  • a knitting unit, broadly indicated at 12, is affixed on the bed plate 1 and operates to knit tubular fabric which typically is wound flattened onto a roll or other take-up apparatus (not shown) positioned below the knitting unit 12.
  • a first large, annular driven gear 4 is rotatably held in the bed plate 1.
  • the needle cylinder 6 is positioned on the upper side of the driven gear 4 and rests on a replaceable intermediate rest 5 positioned between the driven gear 4 and bed plate 1.
  • the provision of the intermediate rest 5 between the driven gear 4 and the bed plate 1 facilitates replacement of the needle cylinder 6.
  • several component parts, including the first large driven gear and an intermediate gear are replaced when the needle cylinder 6 is changed.
  • the needle cylinder 6 and intermediate rest 5 only have to be changed when changing the needle cylinder 6 for a cylinder of different diameter.
  • the large driven gear 4 meshes with a driving gear 8 secured on the knitting machine drive shaft 7.
  • a power source (not shown) conventionally positioned in the knitting machine, provides the necessary force for rotating the drive shaft 7.
  • a second driven gear 10 is positioned at the top of the drive shaft 7 and meshes with a second large annular gear 9.
  • the drive shaft 7 is covered with a cylindrical protective member 11 for protection of the shaft against contaminants and other harmful effects.
  • the knitting unit 12 includes a cylinder needle area 13, dial needle area 14, and the usual yarn carriers (not shown).
  • the cylinder needle area 13 includes a plurality of needle groves formed in the outer periphery of the needle cylinder 6 and includes a circular opening at the upper end thereof.
  • Cylinder needles (not shown) are mounted for vertical sliding movement along the formed grooves.
  • Needle activating cams are mounted on the inner surface of a cam holder 15 for controlling movement of the needle cylinder 6 during knitting.
  • the cam holder 15 is supported on the upper part of a circular cam ring 16 which is fixed to the bed plate 1.
  • the dial needle area 14 includes dial element means including a dial 17 having dial grooves therein.
  • Dial needles (not shown) are mounted in the dial grooves for radially sliding along the formed dial grooves.
  • Dial needle activating cams are supported on the lower surface of a dial cam holder 18 and control movement of the dial needles.
  • the needle cylinder 6 and dial 17 are rotated at the same speed.
  • the dial 17 is fixed to the planar underside surface of a diametrically enlarged, portion 20a of a hollow support shaft 20 by bolts 21.
  • the dial 17 includes a shaft engaging upper surface 17a which engages the lower end of the stepped portion 20b on the lower end of the support shaft 20 and a dial cam holder engaging surface 17b.
  • the surface 17a of the needle dial 17 which engages the lower portion of the support shaft 20 is constructed flush with the upper dial cam holder engaging surface 17b defining the upper surface. Precise positioning of the needle dial 17 occurs when the dial 17 is fixed to the support shaft 20.
  • the needle dial aperture is approximately equal to that of the diametrically small stepped portion of the support shaft 20.
  • the size of the small stepped portion 20b of the support shaft 20 is about 10 mm regardless of nominal size.
  • the support shaft 20 is rotatably supported by upper and lower bearing assemblies 22 and 23 which are held on upper and lower portions of vertically extending support sleeve means in the form of a cylinder support sleeve member 19b which surrounds the support shaft 20.
  • the second large gear 9 is fixed at the upper end of the support shaft 20 by a lock nut 25 having a key 24 extending therethrough.
  • the upper end of the support sleeve 19b member is supported for vertical movement relative to the frame support member 27.
  • the lower end of the support sleeve member 19a is fixed to the dial cam holder 18.
  • the support sleeve member 19b is vertically slidable in an outer cylinder 27a extending downwardly from a frame support member 27.
  • the frame support member 27 is diametrically enlarged at an upper portion and is fixed to an outer cylinder support frame 28.
  • the outer cylinder support frame 28 is held by three supports 31, 32 and 33 engaging the bed plate 1, only two of which are shown in Figure 1.
  • Dial control means 29, 26 with a retainer 26a for preventing vertical movement is provided for lifting and lowering the support sleeve member 19b. Such movement lifts and lowers the dial 17 fixed to the support shaft 20 and the dial cam holder 18 fixed to the support sleeve member 19b, so as to lift the dial 17 a sufficient distance to permit removal and replacement of the needle cylinder 6.
  • the dial control means includes a driving gear 29 which meshes with a gear 26 and a vertical shaft 30 supported by the frame support member 27.
  • the gear 26 is supported on the upper end of the support sleeve member 19b and operates to raise and lower the support sleeve member.
  • Power air introducing means indicated generally as 35 is provided for introducing air into the support shaft 20.
  • the support shaft 20 is hollow and includes a hollow formed portion 20c ( Figure 2) in which air can be forced therethrough.
  • the power air introducing means 35 comprises a stationary vertical shaft 36, an upper housing 37 for containing electrical terminals, a bearing assembly 38 positioned at an air introducing-end port, and a lower bearing housing 39 having an air introducing-out port.
  • the shaft 36 is supported at its upper end by the bearing assembly 38.
  • the bearing assembly 38 is fixed to a cover 34.
  • the lower bearing housing 39 includes a bearing 40.
  • the upper housing 37 contains an electrical terminal member 42 which is biased by a spring 41.
  • the electrical terminal member 42 communicates with the top of the stationary vertical shaft 36.
  • a lamp 43 and transformer 44 are positioned in the lower portion of the stationary vertical shaft 36.
  • the transformer 44 is fixed to the stationary vertical shaft 36.
  • the bearing housing 39 rotates around the stationary vertical shaft 36.
  • Catching number 45, ( Figure 3) prevents the vertical shaft 36 from rotating.
  • the needle dial 17 When the gauge or nominal size of the knitting machine is to be changed, the needle dial 17 is raised upward for allowing clearance to remove the needle cylinder. This is accomplished by turning the vertical shaft 30 by means of a tool, such as a hexagonal wrench. As the vertical shaft 30 is turned, it rotatively drives the cylinder gear 26 meshing with the driving gear 29. As the gears turn, needle dial 17 is moved upward about 10 mm and a space is provided above the needle cylinder 6.
  • the present invention offers several benefits over other prior art apparatus. Not only is the needle cylinder 6 and needle dial 17 removed without the need of using chain block, but the needle dial 17 can be reset with little difficulty. Because both the shaft engaging upper surface 17a and upper dial cam holder engaging surface 17b are substantially flush with each other, removal of the needle cylinder 6 is facilitated. Additionally, the needle dial 17 is positioned readily without difficulty during reassembly because the needle dial orifice is dimensioned substantially equal to the stepped portion of the support shaft 20 for receiving the stepped portion of the shaft 20 therethrough to aid in positioning the needle dial 17.

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

Claims (7)

  1. Métier à tricoter comprenant :
       une structure (1, 27, 28),
       un cylindre à aiguilles (6), monté de manière démontable sur ladite structure pour se déplacer par rotation par rapport à ladite structure pendant le fonctionnement dudit métier,
       un arbre de support généralement vertical (20) porté par ladite structure,
       un disque à aiguilles (17) fixé de manière démontable sur ledit arbre de support (20),
       un manchon de support (19b) entourant ledit arbre de support (20),
       un teneur de came de disque (18) porté par ledit manchon de support (19b),
       des moyens de commande (26, 29) pour monter et abaisser ledit manchon de support (19b),
       ledit teneur de came de disque (18) et ledit disque d'aiguilles (17) étant déplacés verticalement de manière à fournir un jeu vertical entre ledit disque d'aiguilles (17) et ledit cylindre à aiguilles (6),
       caractérisé en ce que :
       ledit arbre de support (20) a une partie circulaire étagée (20b) à son extrémité inférieure,
       ledit disque d'aiguilles (17) a une ouverture (17c) recevant étroitement ladite partie étagée (20b) dudit arbre de support (20) et une surface supérieure (17b) en prise avec l'arbre de support et une surface supérieure (17b) en prise avec le teneur de came de disque qui sont alignées l'une avec l'autre, et
       ledit jeu vertical est suffisant pour permettre un mouvement latéral dudit cylindre à aiguilles (6) dans et hors dudit métier à tricoter.
  2. Métier à tricoter selon la revendication 1, dans lequel lesdits moyens de commande (26, 29) pour déplacer ledit manchon de support (19b) comprennent une roue (26) entourant ledit manchon de support (19b) qui est rotative pour monter et abaisser ledit manchon de support (19b).
  3. Métier à tricoter selon la revendication 2, dans lequel lesdits moyens de commande (26, 29) comprennent une roue menante (29) en prise avec ladite roue (26) mentionnée en premier et imprimant à des temps souhaités une rotation à ladite première roue (26).
  4. Métier à tricoter selon la revendication 3, comprenant en outre un arrêt (26a) pour empêcher un déplacement vertical de ladite première roue mentionnée (26).
  5. Métier à tricoter selon la revendication 1, dans lequel ledit assemblage démontable du cylindre à aiguilles comprend une roue annulaire (4) montée sur ladite structure, et un appui (5) connecté à et faisant saillie vers l'intérieur à partir de ladite roue annulaire (4) vers son centre.
  6. Métier à tricoter selon la revendication 5, dans lequel ledit cylindre à aiguilles (6) est supporté par et s'étend vers le haut à partir dudit appui (5).
  7. Métier à tricoter selon la revendication 1, comprenant en outre des moyens de conduction d'air (36) pour conduire de l'air comprimé d'enlèvement de peluches vers le bas à travers et à partir dudit arbre de support.
EP90313333A 1989-12-11 1990-12-07 Métier à tricoter circulaire Expired - Lifetime EP0436313B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1322257A JP2700135B2 (ja) 1989-12-11 1989-12-11 丸編機
JP322257/89 1989-12-11

Publications (3)

Publication Number Publication Date
EP0436313A2 EP0436313A2 (fr) 1991-07-10
EP0436313A3 EP0436313A3 (en) 1992-01-08
EP0436313B1 true EP0436313B1 (fr) 1995-10-25

Family

ID=18141638

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90313333A Expired - Lifetime EP0436313B1 (fr) 1989-12-11 1990-12-07 Métier à tricoter circulaire

Country Status (5)

Country Link
EP (1) EP0436313B1 (fr)
JP (1) JP2700135B2 (fr)
KR (1) KR0122594B1 (fr)
DE (1) DE69023216T2 (fr)
ES (1) ES2079452T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2112260A1 (fr) 2008-04-25 2009-10-28 SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbH Métier à tricoter circulaire avec un plateau installé de manière rotative

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19653761B4 (de) * 1996-12-20 2004-09-16 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Rundstrickmaschine mit auswechselbarem Nadelträger, z. B. Nadelzylinder
DE19712739A1 (de) * 1997-03-26 1998-10-01 Sipra Patent Beteiligung Fadenliefereinrichtung für intermittierenden Fadenverbrauch
DE102007020743A1 (de) 2007-04-30 2008-11-06 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Rundstrickmaschine mit einem auswechselbaren Nadelzylinder
EP2458050B1 (fr) * 2010-11-25 2013-06-19 Groz-Beckert KG Dispositif et procédé d'allègement du montage et démontage de cylindre sur des métiers à tricoter circulaires
CN102877207A (zh) * 2012-10-16 2013-01-16 无锡市佳龙纺织机械有限公司 针织大圆机上的中心套筒结构
CN103046217B (zh) * 2012-12-24 2014-06-25 绍兴恒舜数控精密机械科技有限公司 一种电脑针织圆纬机的针盖驱动机构
CN103266402A (zh) * 2013-06-05 2013-08-28 连云港元丰机械制造有限公司 针织双面机
CN104060384B (zh) * 2014-07-09 2015-11-04 徐挺 改进式双面小圆机
CN114318646B (zh) * 2021-08-06 2023-08-15 浙江工业大学之江学院 一种小型混凝土振动器震动头清洁巾编织机
CN113737376B (zh) * 2021-08-06 2023-03-21 泉州精镁科技有限公司 一种用于圆形纬编机套筒的大鼎结构

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1256196A (en) * 1969-09-02 1971-12-08 Mayer & Cie Maschinenfabrik Multiple-station circular knitting machine
EP0413608A1 (fr) * 1989-08-18 1991-02-20 Precision Fukuhara Works, Ltd Métier à tricoter circulaire

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR682725A (fr) * 1928-11-16 1930-06-02 Wildman Mfg Company Perfectionnements aux métiers à tricot côtelé
CS177346B1 (fr) * 1975-04-03 1977-07-29
IT1185432B (it) * 1985-10-14 1987-11-12 Lonati Spa Macchina per maglieria o simile con dispositivo per il sollevamento e l'abbassamento del platorello

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1256196A (en) * 1969-09-02 1971-12-08 Mayer & Cie Maschinenfabrik Multiple-station circular knitting machine
EP0413608A1 (fr) * 1989-08-18 1991-02-20 Precision Fukuhara Works, Ltd Métier à tricoter circulaire

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2112260A1 (fr) 2008-04-25 2009-10-28 SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbH Métier à tricoter circulaire avec un plateau installé de manière rotative
DE102008021548A1 (de) 2008-04-25 2009-10-29 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Rundstrickmaschine mit einer drehbar gelagerten Rippscheibe
CN101565874B (zh) * 2008-04-25 2013-05-22 Sipra专利发展合作股份有限公司 具有可旋转设置针盘的圆型针织机

Also Published As

Publication number Publication date
JPH03185160A (ja) 1991-08-13
KR910012417A (ko) 1991-08-07
DE69023216D1 (de) 1995-11-30
JP2700135B2 (ja) 1998-01-19
ES2079452T3 (es) 1996-01-16
EP0436313A3 (en) 1992-01-08
DE69023216T2 (de) 1996-04-18
KR0122594B1 (ko) 1997-11-27
EP0436313A2 (fr) 1991-07-10

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