GB874888A - Yarn handling and severing mechanism for circular knitting machines and methods - Google Patents

Yarn handling and severing mechanism for circular knitting machines and methods

Info

Publication number
GB874888A
GB874888A GB37047/57A GB3704757A GB874888A GB 874888 A GB874888 A GB 874888A GB 37047/57 A GB37047/57 A GB 37047/57A GB 3704757 A GB3704757 A GB 3704757A GB 874888 A GB874888 A GB 874888A
Authority
GB
United Kingdom
Prior art keywords
yarn
air
handler
cutter
yarns
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
Application number
GB37047/57A
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.)
Burlington Industries Inc
Original Assignee
Burlington Industries Inc
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 Burlington Industries Inc filed Critical Burlington Industries Inc
Publication of GB874888A publication Critical patent/GB874888A/en
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B15/00Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38Devices for supplying, feeding, or guiding threads to needles
    • D04B15/54Thread guides
    • D04B15/58Thread guides for circular knitting machines; Thread-changing devices
    • D04B15/60Thread guides for circular knitting machines; Thread-changing devices with thread-clamping or -severing devices

Landscapes

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

Abstract

874,888. Knitting. BURLINGTON INDUSTRIES Inc. Nov. 27, 1957 [Dec. 6, 1956; April 2, 1957], No. 37047/57. Class 74 (2). Yarn extending over the dial cap of a rotary cylinder machine having individually retractable interchangeable yarn fingers is manipulated whilst being tensioned by suction, the manipulation including the steps of inserting yarn into selected needles and severing yarn, active and/or inactive. When yarns are to be interchanged, compressed air is supplied, via a pipe 72, to a yarnhandling mechanism housed in a block 64. A piston is thereby forced upwardly in its cylinder, to rock a lever 94 against the action of a spring 100 and so release a yarn clamp 98; the blast of air through a jet 76 induces a yarn-handling flow of air into a passage 84; and a jet of air issues from a nozzle 120 to position yarns to be severed by a cutter 172, 174. Thus when, say, a yarn finger 36<SP>1</SP> drops to active position, to introduce a yarn 40, the end of yarn 40 is released by the clamp and sucked through the passage 84 into the exhaust conduit 80 of the yarn-handling mechanism. Immediately thereafter, the yarn finger 36<SP>11</SP>, feeding the outgoing yarn 42, is raised to inactive position. As the cylinder rotates, the ingoing yarn 40 is withdrawn by the needles from under a guide tongue 60, the remaining inactive yarns are held and tensioned by the suction and so are not pulled out with the yarn 40, and slack in the free end of yarn 40 is taken up in the conduit 80. Meanwhile, outgoing yarn 42 has been carried, by the last needle 44<SP>11</SP> to knit it, under the guide tongue 60. As the free length of yarn 40 approaches the cutter, it is yielded up under tension, as necessary, by the yarn handler and, entering the air blast from nozzle 120, is bellied out to extend radially from the needle 44<SP>1</SP>, so that it will be cut as closely as possible to the fabric. The outgoing yarn 42 is carried under the yarn handler and into contact with a guide post, a loop of the yarn is sucked up into the yarn handler, and then the blast from nozzle 120 bellies out that yarn also. The movable blade 174 of the cutter is now closed on the other blade, either gradually or in two steps, so that it cuts the two yarns. The cut end of yarn 40 is exhausted through conduit 80 into a receptacle 230. When, momentarily later, the outgoing yarn 42 is cut, the end extending from its finger 36<SP>11</SP> is sucked up into and remains in conduit 80. The same step of the pattern drum which operates the cutter also causes closing of a supply valve 132 in the air line; but a reservoir 134 maintains the air flow for the interval necessary for removal of the end of yarn 40 and engagement of the end of yarn 42 in the yarn handler. Ultimately, however, as the air supply falls off, the suction of the yarn handler ceases and the mechanical yarn clamp again becomes operative.
GB37047/57A 1956-12-06 1957-11-27 Yarn handling and severing mechanism for circular knitting machines and methods Expired GB874888A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US626691A US3079779A (en) 1956-12-06 1956-12-06 Yarn tensioning and severing mechanism for circular knitting machines

Publications (1)

Publication Number Publication Date
GB874888A true GB874888A (en) 1961-08-10

Family

ID=24511424

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37047/57A Expired GB874888A (en) 1956-12-06 1957-11-27 Yarn handling and severing mechanism for circular knitting machines and methods

Country Status (3)

Country Link
US (1) US3079779A (en)
DE (2) DE1220076B (en)
GB (1) GB874888A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114808256A (en) * 2022-05-11 2022-07-29 高梵(浙江)信息技术有限公司 Forming knitting machine for manufacturing seamless down jacket fabric

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1142674B (en) * 1960-03-09 1963-01-24 Schubert & Salzer Maschinen Thread clamping device for knitting machines
DE1148348B (en) * 1960-03-18 1963-05-09 Schubert & Salzer Maschinen Thread clamping and separating device for circular knitting machines
DE1231385B (en) * 1961-04-08 1966-12-29 Richard Parthum Device for clamping, tensioning and separating threads and thread ends as well as for removing separated thread ends on circular knitting machines for the production of knitted goods, such as socks
CH395415A (en) * 1961-10-07 1965-07-15 Schubert & Salzer Maschinen Method and device for severing and clamping threads on circular knitting machines
US3228213A (en) * 1963-03-08 1966-01-11 Gordonshire Knitting Mills Inc Yarn trimmer for circular knitting machines
BE675849A (en) * 1966-02-01 1966-06-16
GB1586864A (en) * 1976-09-18 1981-03-25 Wildt Mellor Bromley Ltd Yarn feed and yarn change mechanism for a knitting machine
IT1090377B (en) * 1977-01-17 1985-06-26 Sulzer Morat Gmbh DEVICE ON TEXTILE MACHINES FOR THE SUPPLY OF FILIFORM, TAPE OR STRIP MATERIALS
DE3909817C2 (en) * 1989-03-24 1998-05-20 Sipra Patent Beteiligung Device for switching on and off at least one functional part of a knitting machine
DE19535087B4 (en) * 1995-09-21 2007-03-22 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Circular knitting machine
US6209361B1 (en) * 2000-09-05 2001-04-03 Brian Scott Adams Yarn-holding apparatus for a circular knitting machine
ITBS20010093A1 (en) * 2001-11-21 2003-05-21 Sangiacomo Spa IMPROVEMENTS FOR DOUBLE CYLINDER CIRCULAR MACHINES FOR THE CONSTRUCTION OF KNITTED FABRICS

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2295450A (en) * 1939-06-23 1942-09-08 Toone Nottingham Ltd B Knitting machine
US2269757A (en) * 1939-12-22 1942-01-13 W B Davis & Son Inc Knitting
DE723362C (en) * 1940-06-12 1942-08-03 Seyfert & Donner Thread guides for knitting machines
US2424033A (en) * 1945-10-10 1947-07-15 Interwoven Stocking Co Knitting machine and method
GB675029A (en) * 1949-09-27 1952-07-02 Stibbe G & Co Ltd Improvements in yarn trapping and severing means for circular knitting machines
US2560484A (en) * 1950-06-02 1951-07-10 Alfred Hofmann & Co Means for holding yarn ends
US2602313A (en) * 1951-03-07 1952-07-08 Textile Machine Works Yarn severing device for full-fashioned knitting machines
US2712805A (en) * 1952-07-22 1955-07-12 Union Special Machine Co Feed-off-the-arm sewing machine
BE527286A (en) * 1953-03-16
US2746275A (en) * 1953-03-16 1956-05-22 Beautiful Bryans Inc Yarn severing device for straight-bar knitting machines
US3006173A (en) * 1956-03-27 1961-10-31 Floyd R Shoaf Yarn clamping and cutting means and method for knitting machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114808256A (en) * 2022-05-11 2022-07-29 高梵(浙江)信息技术有限公司 Forming knitting machine for manufacturing seamless down jacket fabric
CN114808256B (en) * 2022-05-11 2023-06-30 高梵(浙江)信息技术有限公司 Forming knitting machine for manufacturing seamless down jacket fabric

Also Published As

Publication number Publication date
DE1236120B (en) 1967-03-09
DE1220076B (en) 1966-06-30
US3079779A (en) 1963-03-05

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