EP0387094B1 - Verfahren zur Herstellung eines Doppelfutter-Gestrickes mittels Rundstrickmaschine - Google Patents

Verfahren zur Herstellung eines Doppelfutter-Gestrickes mittels Rundstrickmaschine Download PDF

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Publication number
EP0387094B1
EP0387094B1 EP90302555A EP90302555A EP0387094B1 EP 0387094 B1 EP0387094 B1 EP 0387094B1 EP 90302555 A EP90302555 A EP 90302555A EP 90302555 A EP90302555 A EP 90302555A EP 0387094 B1 EP0387094 B1 EP 0387094B1
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EP
European Patent Office
Prior art keywords
yarn
needle
sinker
knit
nose
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
EP90302555A
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English (en)
French (fr)
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EP0387094A2 (de
EP0387094A3 (de
Inventor
Shinji Kawase
Shozo Yorisu
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Precision Fukuhara Works Ltd
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Precision Fukuhara Works Ltd
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Publication date
Application filed by Precision Fukuhara Works Ltd filed Critical Precision Fukuhara Works Ltd
Publication of EP0387094A2 publication Critical patent/EP0387094A2/de
Publication of EP0387094A3 publication Critical patent/EP0387094A3/de
Application granted granted Critical
Publication of EP0387094B1 publication Critical patent/EP0387094B1/de
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    • 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
    • D04B15/06—Sinkers
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/16—Circular knitting machines with independently-movable needles with provision for incorporating internal threads in laid-in fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/12—Circular knitting machines with independently-movable needles with provision for incorporating pile threads

Definitions

  • This invention relates generally to a method of constructing a double fleece knit fabric on a circular knitting machine adapted to feed respectively a lay-in yarn, a tie-in yarn, and a knit-in yarn to the needles, and more particularly, to such a method wherein a first lay-in yarn, a second tie-in yarn, and a third knit-in yarn are fed to a knitting machine having sinkers for engaging the yarn, and with each sinker including a stitch forming ledge, a first nose portion with an upper edge, a first open throat, and a second nose portion above and rearward of the first nose portion to define a second open throat and with the sinkers obliquely movable from an innermost lower position to an outermost upper position during knitting to aid in forming a double fleece knit fabric.
  • a 30 inch diameter knitting machine having 90 yarn feeders has been manufactured to improve productivity.
  • a needle of short latch length is used together with a sinker having a nose which is positionally low.
  • a sharper inclination of the raising cam and stitch cam is provided to increase productivity.
  • the rotation speed exceeds 200 rpm, excessive wear of the butts of the needles occurs and the sinker can break in a short period of time.
  • DE-A-2318196 describes a sinker for a circular knitting machine used to construct single fleece knit fabric, the sinker having two noses, two throats and upper and lower stitch-forming surfaces.
  • the invention consists in a method of constructing a knit fabric on a circular knitting machine adapted to feed a lay-in yarn, a tie-in yarn and a knit-in yarn to latch needles, the knitting machine having sinkers obliquely movable from an innermost lower position to an outermost upper position, and wherein each sinker includes a stitch forming ledge, a first nose with an upper edge and a first open throat, and a second nose above and rearward of the first nose to define a second open throat having an upper edge thereon, the method comprises the steps of
  • a rotating needle cylinder 1 is supported on a driven ring gear 12.
  • the outside surface of the needle cylinder 1 is provided with the usual needle slots 1a in which hook latch needles 2 are supported for vertical movement parallel to the axial rotation of the needle cylinder 1.
  • Each knitting needle 2 is provided with an operating butt, as indicated at 2a ( Figure 1), and a pivoted latch 2b ( Figure 4).
  • Conventional knitting cams, including a control cam 4 are provided for imparting vertical movement to the knitting needles 2.
  • the control cam 4 is supported by a cam holder 3 fixed to the upper surface of a cam ring plate 5.
  • a sinker nose support ring 6 is fixed on the upper inner surface of the needle cylinder 1 and is provided with a downwardly inclined surface 6a defined by the lower surfaces of sinker slots 6b provided in the upper end of the sinker nose support ring 6.
  • a sinker support bed 7 is fixed to the exterior of the upper end of the needle cylinder 1 and is provided with a downwardly inclined sinker sliding surface 7a defined by the lower ends of sinker slots formed in the sinker bed 7 and at the same downwardly inclined angle as a sinker sliding surface 6a of the sinker nose ring 6.
  • sinker cams 10 supported in a fixed position on a sinker cap 9.
  • Sinker cap 9 is supported on a sinker cap support ring 11 which is supported in spaced-apart locations on the upper ends of support standards 13 surrounding the needle cylinder 1.
  • the sinker cams 10 are supported in a downwardly inclined position at the same downwardly inclined angle as the inclined sliding surfaces 6a and 7a on the respective nose ring 6 and sinker bed 7.
  • the sinker sliding surfaces 6a and 7a are illustrated in Figure 1 as being downwardly inclined at an angle of 20° relative to a line perpendicular to the vertically disposed needles 2. While this 20° downwardly inclined angle is preferred, the present invention is not limited to this particular angular inclination but may be positioned at an angle from 5° to 60°, and preferably within the range of 10° to 45°.
  • yarn carrying supports 14 are supported by and extend upwardly and inwardly from the sinker cap support ring 11.
  • a yarn carrier ring 15 is fixed on the inner ends of the yarn carrying supports 14.
  • Yarn guides, broadly indicated at 16, are fixed to the underside of the yarn carrier ring 15 and are provided with a holder 17 and yarn feed carriers 60, 61 and 62 for feeding yarns to the needles 2, in a manner to be discussed ( Figure 3).
  • the special sinker 8 includes an elongate body portion having a main, lower planar sliding edge 8j adapted to rest upon and slide along the inclined surface 7a of the sinker bed 7, and an inner lower additional planar sliding edge 8b adapted to rest on and slide along the inclined sliding surface 6a of the sinker nose ring 6.
  • a stitch forming ledge 8a is provided on the upper inner portion of the sinker and extends horizontally thereto.
  • a first neb or nose 8d extends inwardly and over the outer portion of the stitch forming ledge 8a and defines a first open throat 8c between the nose 8d and the stitch forming ledge 8a.
  • An upper edge 8f is provided on the nose 8d for controlling lay-in and tie-in yarns.
  • a second neb or nose 8e is provided above and rearward to the first neb 8d and defines a second open throat 8h having an upper edge 8g thereon.
  • An upstanding operating butt 8k extends upwardly at a right angle from the body portion of the sinker 8. The butt 8k is engaged by the sinker cams 10 to impart the required inward and outward radial movement to the sinkers 8.
  • the stitch forming ledge extends along a line which is parallel with the lower planar sliding ledge of the sinker.
  • the present special type of sinker 8 is characterized by the stitch forming ledge 8a being slanted downwardly toward the operating butt 8k on the outer end portion of the elongate body portion of sinker 8.
  • the angle of declination defines an acute angle of about 20°.
  • the transverse solid line 50 indicates the upper edge of the inclined sliding surface 6a of the sinker nose ring.
  • the continuous solid line 51 shows the locus of movement of the upper tip of the hook of the needle 2.
  • the alternate, long and dashed line 52 indicates the locus of movement of the second sinker throat 8h.
  • the alternate, long and dashed line 53 indicates the locus of movement of the first sinker throat 8c.
  • the dotted line 54 indicates the locus of movement of the upper edge 8g of the second nose or neb 8e.
  • the dotted line 55 indicates the locus of movement of the upper edge 8f of the first nose 8d.
  • the dotted line 56 indicates the locus of movement of the sinker stitch forming ledge 8a.
  • Respective first, second and third yarn carriers 60, 61, and 62 are provided to feed the respective lay-in, tie-in and knit-in yarns, 57, 58 and 59 to the needles 2.
  • the needles As the needles successively approach the first yarn feeder 60, as shown in Figure 3, they are successively raised to the clearing level along the solid line 51 and to a position where the previously formed loops in the needle hook are lowered and open the latch 2b so as to slide down on the stem, whereupon the needle reaches the highest clearing position.
  • the sinker begins receding from the innermost position to an outward, oblique upper position.
  • a first lay-in yarn 57 is fed to the raised needle in which the older tie-in loops and knit-in loops are retained on the stem ( Figure 5).
  • the needle 2 lowers to catch and retain the lay-in yarn 57 which has been fed from the yarn carrier 60 ( Figure 6).
  • the sinker 8 obliquely recedes from the innermost lower position to the outermost upper position to receive the lay-in yarn 57 at the upper edge 8f of the first sinker nose 8d.
  • the needle is further lowered so that the tie-in and knit-in loops retained on the needle stem rise thereon and close the latch onto the recently fed lay-in yarn 57 ( Figure 7).
  • the sinker advances in an inwardly declining direction so that a length of the yarn for a lay-in loop is obtained by slightly pushing the lay-in yarn 57 into the needle hook with the second throat 8h.
  • the needle rises to a position higher than the first feeder 60 ( Figure 8). At this position, the lay-in yarn 57 in the needle hook is moved below the tip of the latch 2b and transferred to the needle stem ( Figure 8). At the second yarn feeder 61, a tie-in yarn 58 is fed to the hook of the needle 2.
  • the needle hook is lowered so that the lay-in yarn 57 is turned to the rear of the latch 2b to close the latch and catch the tie-in yarn 58 therewithin ( Figures 9-10).
  • the sinker 8 is advanced in an inward, oblique lowered direction from the outward, oblique upper recessive position.
  • the sinker advances, it receives the tie-in yarn 58 at the upper edge 8f of the first nose 8d.
  • the lay-in yarn 57 is cleared from the needle and a required length of the tie-in yarn 58 is received by the upper edge 8f of the first step nose and then is drawn downward.
  • the old loops remain in a forward position in the needle hook.
  • the needle rises to a position lower than first and second feeders ( Figure 11), and the tie-in yarn 58 held therewithin opens the latch.
  • the tie-in yarn 58 is positioned in an approximate middle point of the latch 2b, and the sinker 8 is positioned in an inward, oblique, and downward direction from the position shown in Figure 9.
  • a knit-in yarn 59 then is fed from the yarn carrier 62.
  • the needle is lowered and catches and retains the knit-in yarn 59 therewithin ( Figure 12).
  • the knit-in yarn 59 also is received by the upper edge 8g of the second nose 8e.
  • the needle begins to rise (Figure 15) and the sinker begins to advance in an inwardly declining direction.
  • the needles 2 reach the highest position, the loops of the tie-in yarn 58 and knit-in yarn 59 open the latch 2b, leave the latch tip, and slide down on the stem as shown in Figure 5.
  • the described cycles of this knitting operation are repeated to construct a double fleece knit fabric.
  • the present method has advantages over the prior art because the inclination angles of the cylinder cam and sinker cam at the feeders for the lay-in, tie-in and knit-in yarns can be made more gentle. Thus, a reduced cam pitch prevents wear and breakage of the needle butt and sinker butt. Also, a double fleece knit fabric of excellent plating quality can be obtained because the knit-in loop and tie-in loop in the needle hook are positionally stable during knitting. Additionally, compound needles instead of latch needles may be used to accomplish the method.

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

Claims (4)

  1. Verfahren zur Herstellung eines Doppelfutter-Gestrickes mittels Rundstrickmaschine, die geeignet ist, ein Einlegegarn (57), ein Einzugsgarn (58) und ein Einstrickgarn (59) in Zungennadeln (2) einzuführen, wobei die Strickmaschine mit Platinen (8) ausgerüstet ist, die schräg aus einer am weitesten innenliegenden unteren Stellung in eine am weitesten außenliegende obere Stellung beweglich sind, und wobei jede Platine (8) einen maschenbildenden Rand (8a), einen ersten Vorsprung (8d) mit einer oberen Kante (8f) und einer ersten oberen offenen Hohlkehle (8c) und einen zweiten Vorsprung (8e) oberhalb und hinter dem ersten Vorsprung (8d) aufweist, um eine zweite offene Hohlkehle (8h) mit einer darauf ausgebildeten oberen Kante (8g) zu begrenzen, bestehend aus folgenden Schritten:
    (a) Einführen eines ersten Einlegegarnes (57) in eine angehobene Nadel (2) mit einer darauf befindlichen Einzugschlinge und einer Einstrickschlinge, während sich eine Platine -(8) schräg aus der am weitesten innenliegenden unteren Stellung in die am weitesten außenliegende obere Stellung zurückzieht, um das Einlegegarn (57) auf der oberen Kante (8f) des ersten Vorsprungs (8d) aufzunehmen,
    (b) Absenken der Nadel (2) zum Anheben der Einzugschlinge und der Einstrickschlinge auf den Nadelschaft und Schließen der Zunge (2b) auf dem Einlegegarn (57), während auch die Platine (8) in eine einwärts geneigte Richtung vorbewegt wird,
    (c) Anheben der Nadel (2) zum Öffnen der Nadelzunge (2b) und Verschieben des Einlegegarnes (57) auf den Nadelschaft, während auch die Platine (8) schräg in die am weitesten innenliegende untere Stellung vorbewegt wird, so daß die zweite Hohlkehle (8h) an der Platine (8) das Einlegegarn (57) verschiebt, um das Einlegegarn (57) darauf zu halten,
    (d) Einführen eines Einlegegarnes (58) auf den Nadelhaken,
    (e) Absenken des Nadelhakens, während auch die Platine (8) schräg zurückgezogen wird, so daß das Einlegegarn (57) die Nadelzunge schließt,
    (f) Anheben der Nadel (2) zur Freigabe der Schlinge des Einlegegarnes von der Nadel, während die Platine (8) in die am weitesten innenliegende untere Stellung vorbewegt wird, so daß das Einzugsgarn (58) von der oberen Kante (8f) des ersten Vorsprungs (8d) aufgenommen und nach unten auf den Nadelschaft verschoben wird,
    (g) Einführen eines Einstrickgarnes (59) in den Nadelhaken, wenn die Nadel (2) eine angehobene Stellung erreicht hat, so daß das Einstrickgarn (59) auch von der oberen Kante (8g) des zweiten Vorsprungs (8e) aufgenommen wird,
    (h) Absenken der Nadel (2), während die Platine (8) schräg zurückbewegt wird, so daß das Einstrickgarn (59), das auf der oberen Kante (8g) des zweiten Vorsprungs (8e) aufgenommen wird, auf die obere Kante (8f) des ersten Vorsprungs (8d) heruntergezogen wird, und
    (i) weiteres Absenken der Nadel (2) in eine maschenschlingenbildende Stellung, während die Platine (8) aus der am weitesten innenliegenden unteren Stellung in die am weitesten außenliegende obere Stellung zurückbewegt wird, so daß das Einstrickgarn (59) auf den maschenbildenden Rand (8a) der Platine (8) fällt und die jeweiligen Längen des Einzugsgarnes (58) und der Einstrickgarnes (59) in dem Nadelhaken zum Freigeben der vorangehenden Einzugs- und Einstrickschlingen an der Nadel (2) nach unten gezogen werden, so daß je eine neue Einzugschlinge und Einstrickschlinge über dem maschenbildenden Rand (8a) gebildet werden.
  2. Verfahren nach Anspruch 1, bei dem ein Schritt darin besteht, die Platine (89 schräg zu bewegen, so daß sich der maschenbildende Rand (8a), die obere Kante (8f) des ersten Vorsprungs (8d) und die obere Kante (8g) der Platine (8) schräg zur Nadel (2) bewegen und die Nadel (2) immer in einem rechten Winkel schneiden.
  3. Verfahren nach Anspruch 1 oder 2, bei dem die maschenbildende Zunge (8a), die obere Kante (8f) des ersten Vorsprungs (8d) und die obere Kante (8g) des zweiten Vorsprungs (8e) in der untersten Stellung stehen, wenn sich die Platine (8) in die am weitesten innenliegende untere Stellung vorbewegt, und der maschenbildende Rand (8a), die obere Kante (8f) des ersten Vorsprungs (8d) und die obere Kante (8g) des zweiten Vorsprungs in der höchsten Stellung stehen, wenn sich die Platine in die am weitesten außenliegende obere Stellung zurückbewegt.
  4. Verfahren nach Anspruch 1, 2 oder 3, bei dem nacheinanderfolgende Gruppen Einlege-, Einzugs- und Einstrickgarne in die Nadeln eingeführt werden.
EP90302555A 1989-03-10 1990-03-09 Verfahren zur Herstellung eines Doppelfutter-Gestrickes mittels Rundstrickmaschine Expired - Lifetime EP0387094B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1058276A JP2736384B2 (ja) 1989-03-10 1989-03-10 丸編機によるダブルフリース編地の製造方法
JP58276/89 1989-03-10

Publications (3)

Publication Number Publication Date
EP0387094A2 EP0387094A2 (de) 1990-09-12
EP0387094A3 EP0387094A3 (de) 1992-03-25
EP0387094B1 true EP0387094B1 (de) 1995-09-06

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Application Number Title Priority Date Filing Date
EP90302555A Expired - Lifetime EP0387094B1 (de) 1989-03-10 1990-03-09 Verfahren zur Herstellung eines Doppelfutter-Gestrickes mittels Rundstrickmaschine

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EP (1) EP0387094B1 (de)
JP (1) JP2736384B2 (de)
KR (1) KR960010624B1 (de)
DE (1) DE69022083T2 (de)
ES (1) ES2076304T3 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4129845A1 (de) * 1991-09-07 1993-03-11 Sipra Patent Beteiligung Rundstrickmaschine zur herstellung von plueschwaren
CN100383305C (zh) * 2004-01-19 2008-04-23 佰龙机械厂股份有限公司 结构改进型圆编机
KR100777610B1 (ko) * 2004-02-10 2007-11-27 파이 룽 머시너리 밀 코포레이션 리미티드 원형 편물기
KR100777604B1 (ko) * 2004-02-10 2007-11-27 파이 룽 머시너리 밀 코포레이션 리미티드 원형 편물기
KR100673334B1 (ko) * 2005-10-25 2007-01-24 송유철 파일 편환 크기를 줄여주는 싱가핀을 갖는 이면 벨로워원단 편직기
KR101180400B1 (ko) * 2012-05-03 2012-09-10 김동수 비탄성 원사로 고신축성 편직물을 제조하는 방법 및 이에 의해 제조되는 고신축성 편직물

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT976503B (it) * 1973-02-14 1974-09-10 Orizio P Spa Platina perfezionata per macchine circolari da maglieria monofrontu ra particolarmente per la produzio ne di maglia traforata
US3937037A (en) * 1974-01-09 1976-02-10 Scott & Williams, Inc. Method and apparatus for knitting terry fabric
JPS59117691U (ja) * 1983-01-27 1984-08-08 株式会社福原精機製作所 編機用シンカ

Also Published As

Publication number Publication date
JP2736384B2 (ja) 1998-04-02
KR900014665A (ko) 1990-10-24
EP0387094A2 (de) 1990-09-12
DE69022083D1 (de) 1995-10-12
ES2076304T3 (es) 1995-11-01
DE69022083T2 (de) 1996-03-07
JPH02242952A (ja) 1990-09-27
EP0387094A3 (de) 1992-03-25
KR960010624B1 (ko) 1996-08-06

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