US3194029A - Yarn controlling device for circular hosiery knitting machines - Google Patents

Yarn controlling device for circular hosiery knitting machines Download PDF

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Publication number
US3194029A
US3194029A US205324A US20532462A US3194029A US 3194029 A US3194029 A US 3194029A US 205324 A US205324 A US 205324A US 20532462 A US20532462 A US 20532462A US 3194029 A US3194029 A US 3194029A
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United States
Prior art keywords
yarn
dial
ring
cap
controlling device
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Expired - Lifetime
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US205324A
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English (en)
Inventor
Tenconi Riccardo
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Individual
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Individual
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Publication of US3194029A publication Critical patent/US3194029A/en
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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
    • D04B15/60—Thread guides for circular knitting machines; Thread-changing devices with thread-clamping or -severing devices
    • D04B15/61—Thread guides for circular knitting machines; Thread-changing devices with thread-clamping or -severing devices arranged within needle circle

Definitions

  • This invention relates to circular hosiery knitting machines, particularly for producing ladies stockings, and is directed to a yarn controlling device operative during pressoffor when a yarn is taken out of action to bring the yarn from the feeding station, i.e. from the position at which each yarn is formed into a stitch for knitting the fabric, onto the top surface of the dial cap where it is gripped by a suitable mechanical or pneumatic device While waiting to be inserted into action.
  • the device to which this invention relates has the object of eliminating the above drawbacks of known devices and, more precisely, of guaranteeing, in the first place, that the yarn to be taken out of action is surely passed onto the dial cap, and also of allowing the yarn to be cut at a point very near to the point at which it is stitched into the fabric so that the ends of yarn protruding from the knitted fabric will be of greatly reduced length.
  • the yarn controlling device substantially consists of a ring mounted on the dial and formed with an outer surface divided into an upper part which is smooth and of frustoconical shape and a lower part, which is connected to the major base of the frusto-conical part, and is substantially cylindrical and provided with a rough surface as, for example, by knurling or nicking.
  • the roughness of the lower part of the outer surface of the ring mounted on the dial is such as to frictionally constrain the yarn to move with the ring when the yarn comes into contact with said part of the surface, but without hooking the yarn as is the case with known sawtoothed wheels.
  • the yarn is thus entrained by this roughness while the smooth upper part of the ring at the same time induces the yarn to pass over the dial cap.
  • the desired result i.e. the reliable passage of the yarn over the dial cap and the shortening of the yarn end which remains attached to the fabric after cutting. It is manifest that this result is attained by reason of the special shape of the surface of the yarn controlline ring, and that the same result can not be obtained with a saw-toothed or any other type of deep-toothed wheel, because in such case, once the yarn has been caught on a tooth, it can no longer be easily released therefrom.
  • FIG. 1 is a vertical sectional view of a circular hosiery knitting machine provided with a yarn controlling device in accordance with this invention
  • FIGS. 2 and 4 are fragmentary sectional views, on an enlarged scale, in radial, angularly spaced planes of the dial;
  • FIG. 3 is a horizontal cross-section taken along the line IIIIII of FIG. 2;
  • FIG. 5 is a perspective view of a sector of the yarn controlling device
  • FIG. 6 shows, partly in section, the relative positions of the dial, the yarn guide and a needle and sinker
  • FIGS. 7, 8 and 9 show three successive stages in the entraining of the yarn by the yarn controlling device
  • FIG. 10 is a schematic plan view of the dial cap
  • FIG. 11 and FIG. 13 are partial sections of the dial, taken along the lines XIXI and XIII-XIII respectively of FIG. 10;
  • FIG. 12 is a fragmentary elevational view of the dial with the yarn controlling device thereon, as viewed from the periphery.
  • Cylinder 21 is integral with a toothed wheel 8 which, through intermediate gears .9, it and 11, causes the synchronized rotation of a dial 12 disposed coaxially with cylinder 2 under thestationary dial cap of the machine ⁇ Dial 12 has radial-slots receiving transfer bits 14 which,
  • Ayamcutter with aclampi21 are, placed in a suitable.
  • the yarn controlling device consists substantially of a ring 15 fastened'by means of pins 16 or the like to the top of dial 12 containing trans fer bits 14,,so as to concentrically surround the fixed dial cap 13. Ring 15 therefore rotates in synchronismlwith dial "1 2 and also' with cylinder 2.
  • the ring 15 mounted on'dial 12 has 'an upper, smooth, frusto-conical part 15a,
  • the lower part 1517 of the outer surface of ring 15 has a roughened surface in the form of shallow nicks
  • the yarn moves out of engagement with the roughened part 17 ,(see FIG. 13) and remains in contact with the smooth part 15a of ring 15 so that-it can slide forward on this smooth part in the direction of turningof the dial.'
  • the yarn thus tends to arrange itself on the straight line joining the point at which it leaves guide 6; and the point at which the last needle to knit is located (see position 7c of FIG. 10).
  • the roughness provided on the yarn controlling ring can be of widely varying nature so long as it is not formed of too deep notches or nicks which do not allow the yarn caught therein to be released and further so long as the roughness provides sufficient frictional resistance for the raised sufficiently so that'its yarn is taken' out ofaction,
  • FIGS. 7 and 1,1 show the same situation ina plan view. a As may be seen, thread 7a touches the roughened part 17 of ring 15 at point 1% and is frictionally conveyed by the ring itself. it p 7 As ring 15 continues to rotate, its smooth, upper frustoconical part lsa'induces the yarn to pass over dial cap 13; and the last needle to knit moves to position 18b (FIGS.
  • a circular hosiery knitting machine having a rotatable needle cylinder, a dial mounted above the needle cylinder and rotatable with the lattena stationary dial cap above the diahyarn guides at a feeding station and yarn clamping and cutting means on the dial cap operative to clamp and sever a yarn when; the latter is taken out of action and passed overthe dial cap from the related yarnguide; a yarn controlling member mounted on the member having an outer annular surface for contact with pa yarn taken out of action and' which includes an upper smooth, frusto-conical part inducing the contacted yarn to tially cylindrical part of superficial roughness which extends from said uPPer'part'of the surface and frictionally urges the co'ntacted yarn to move with said annular V 8 and 10) while the point of contact of yarn 7bwith the r roughness.
  • a yarn controlling member as in claim 1; wherein said substantially cylindrical lower part extends downwardly from the large diameter end of said frusto-conical upper part of the surface.
  • a yarn controlling member as in claim 1; wherein said member is in the form of a ring disposed on top of the dial and extending around the dial cap.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US205324A 1961-06-27 1962-06-26 Yarn controlling device for circular hosiery knitting machines Expired - Lifetime US3194029A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1187861 1961-06-27

Publications (1)

Publication Number Publication Date
US3194029A true US3194029A (en) 1965-07-13

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ID=11138462

Family Applications (1)

Application Number Title Priority Date Filing Date
US205324A Expired - Lifetime US3194029A (en) 1961-06-27 1962-06-26 Yarn controlling device for circular hosiery knitting machines

Country Status (4)

Country Link
US (1) US3194029A (fr)
BE (1) BE619466A (fr)
ES (1) ES278481A1 (fr)
NL (1) NL279812A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3283544A (en) * 1963-04-17 1966-11-08 Bentley Eng Co Ltd Circular knitting machines
EP1887119A1 (fr) * 2006-08-11 2008-02-13 Groz-Beckert KG Procédé de tricotage et outil de tricotage

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1945971A (en) * 1930-03-19 1934-02-06 Hemphill Co Knitting machine
US2230974A (en) * 1939-03-08 1941-02-04 Hemphill Co Fabric take-up
US2824436A (en) * 1957-02-27 1958-02-25 Hanes Hosiery Mills Co Yarn clamping and severing mechanism for knitting machines
US2937412A (en) * 1955-11-07 1960-05-24 John D Hollingsworth Card clothing
US2970460A (en) * 1960-04-15 1961-02-07 Singer Fidelity Inc Toothed yarn controller
US3164975A (en) * 1961-10-07 1965-01-12 Schubert & Salyer Maschinenfab Knitting apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1945971A (en) * 1930-03-19 1934-02-06 Hemphill Co Knitting machine
US2230974A (en) * 1939-03-08 1941-02-04 Hemphill Co Fabric take-up
US2937412A (en) * 1955-11-07 1960-05-24 John D Hollingsworth Card clothing
US2824436A (en) * 1957-02-27 1958-02-25 Hanes Hosiery Mills Co Yarn clamping and severing mechanism for knitting machines
US2970460A (en) * 1960-04-15 1961-02-07 Singer Fidelity Inc Toothed yarn controller
US3164975A (en) * 1961-10-07 1965-01-12 Schubert & Salyer Maschinenfab Knitting apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3283544A (en) * 1963-04-17 1966-11-08 Bentley Eng Co Ltd Circular knitting machines
EP1887119A1 (fr) * 2006-08-11 2008-02-13 Groz-Beckert KG Procédé de tricotage et outil de tricotage
US20080034804A1 (en) * 2006-08-11 2008-02-14 Groz-Beckert Kg Knitting method and knitting tool
JP2008045260A (ja) * 2006-08-11 2008-02-28 Groz-Beckert Kg 編成方法および編成用具
US7493780B2 (en) 2006-08-11 2009-02-24 Groz-Beckert Kg Knitting method and knitting tool
KR100923001B1 (ko) * 2006-08-11 2009-10-22 그로츠-베케르트 카게 편직 방법 및 편직 공구

Also Published As

Publication number Publication date
NL279812A (fr)
BE619466A (fr) 1962-10-15
ES278481A1 (es) 1963-01-16

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