US3921417A - Apparatus for conveying filling threads to a warp knitting machine - Google Patents

Apparatus for conveying filling threads to a warp knitting machine Download PDF

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Publication number
US3921417A
US3921417A US236264A US23626472A US3921417A US 3921417 A US3921417 A US 3921417A US 236264 A US236264 A US 236264A US 23626472 A US23626472 A US 23626472A US 3921417 A US3921417 A US 3921417A
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United States
Prior art keywords
cam
thread
cam means
clamp
pattern mechanism
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Expired - Lifetime
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US236264A
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English (en)
Inventor
Karl Kohl
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Individual
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Individual
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Publication of US3921417A publication Critical patent/US3921417A/en
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B23/00—Flat warp knitting machines
    • D04B23/12—Flat warp knitting machines with provision for incorporating unlooped wefts extending from selvedge to selvedge

Definitions

  • the filling thread conveyor chain carries a plurality of thread clamps spacedly mounted along the chain, each thread clamp being sequentially moved into a position for receiving a respective one of the filling threads from the yarn cones carried by an endless filling thread supply chain.
  • the clamps are operated by a cam so that, at the take-up point, the filling thread may be clamped between the head and anvil of the clamp.
  • each bracket on the filling thread supply chain carries a cone, a filling thread will be laid in each row of stitches.
  • Pattern variations are obtained by omitting yarn supply cones at selected spacings along the supply chain so that no filling thread is supplied to the conveyor chain at such spacings.
  • the obtainable pattern variations depend entirely on the structure of the filling thread supply chain.
  • it is not possible to change the pattern during the knitting operation but such change can be effected only by stopping the machine and replacing the supply chain or changing the yarn cone arangement thereon.
  • a cam means mounted at the take-up point for the respective filling threads for moving a respective one of the thread clamps upon operation of the cam means between a clamp opening and clamp closing position.
  • a control means is operatively associated with the cam means and a pattern mechanism for operating the cam means in response to the pattern mechanism.
  • the cam means is a cam disc having a cam for closing the clamp upon rotation of the disc.
  • endless filling thread conveyor chain 1 trained about sprocket 3 for continuous movement in the direction of arrow A.
  • Chain 1 has mounted thereon a plurality of thread clamps 2, the clamps being spaced regularly along the chain and being sequentially moved into a position 12 for receiving a respective one of the filling threads from the yarn cones of a filling thread supply chain (not shown).
  • the clamp 2 comprises a movable clamp head 4 mounted on stem 5 and cooperating with anvil 7, a helical spring 6 mounted on the stem between anvil 7 and cam follower l1 biasing the head 4 against the anvil 7 to keep the clamp normally closed.
  • a cam disc 9 is keyed to the axle 8 of sprocket 3 to be rotated therewith and has a cam 10 for opening a clamp in the thread take-up position 12 when the cam 10 engages cam follower 11 on the clamp stem, thus moving the clamp head against the bias of spring 6.
  • the clamp is moved from the closed to the open position.
  • the clamp receives the filling thread in the open position at take-up point 12 and is taken along by the clamp as it closes under the pressure of spring 6 as the chain 1 moves on from position 12.
  • the filling thread is conveyed to the knitting station where the fabric is being knitted so that the filling thread may be laid therein.
  • the cam disc 9 When it is not desired to lay a filling thread, the cam disc 9 is displaced so that the cam assumes position 10a out of alignment with thread take-up point 12. In this displaced position, the cam will not open the clamp at the thread take-up point when the thread is delivered from theyarn cone but, according to the displacement angle of cam position 10a, at a later point when the yarn cone has passed by this point so that no thread will be supplied to thread conveyor chain for laying in the fabric.
  • the control means for operating the cam means 9, 10 comprises lever arm 13 fixed to cam disc 9 and biased 'in one direction by return spring 14 tending to move the disc clockwise.
  • the lever arm is also connected to a push rod 15 which is pivoted to one-armed lever 16.
  • One end of a tension member 17, which is illustrated by a cable line, is connected to the push rod while the other end thereof is connected to one arm of twoarmed lever 18 whose other arm carries follower roller 20 engaged by the chain of pattern mechanism 21'.
  • An apparatus for conveying filling threads to a warp knitting machine comprising 1. a filling thread conveyor chain,
  • each of the thread clamps being sequentially moved into a position for receiving a respective one of the filling threads
  • a cam means mounted at said position for moving a respective one of the thread clamps upon operation of the cam means between a clamp opening and clamp closing position
  • control means being operatively associated with the cam means and the pattern mechanism for operating the cam means in response to the pattern mechanism.
  • cam means is a cam disc having a cam for closing the clamp upon rotation of the cam disc.
  • control means comprises a return 'spring tending to move the cam means in one direction and a tension member tending to move the cam means in a direction opposite to the one direction, the tension member being responsive to the pattern mechanism.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Looms (AREA)
US236264A 1971-03-26 1972-03-20 Apparatus for conveying filling threads to a warp knitting machine Expired - Lifetime US3921417A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2114699A DE2114699C3 (de) 1971-03-26 1971-03-26 Kettenwirkmaschine mit Langschuß einrichtung

Publications (1)

Publication Number Publication Date
US3921417A true US3921417A (en) 1975-11-25

Family

ID=5802846

Family Applications (1)

Application Number Title Priority Date Filing Date
US236264A Expired - Lifetime US3921417A (en) 1971-03-26 1972-03-20 Apparatus for conveying filling threads to a warp knitting machine

Country Status (5)

Country Link
US (1) US3921417A (show.php)
JP (1) JPS5122536B1 (show.php)
DD (1) DD96274A5 (show.php)
DE (1) DE2114699C3 (show.php)
GB (1) GB1349497A (show.php)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2005951A (en) * 1932-06-25 1935-06-25 Morton James Manufacture of fabrics
US3145549A (en) * 1958-08-06 1964-08-25 Siccardi Francesco Apparatus for producing a knitted fabric having an inlay of weft threads
US3364701A (en) * 1966-02-25 1968-01-23 Stevens & Co Inc J P Apparatus for feeding filling threads to a warp knitting machine
US3410113A (en) * 1966-04-06 1968-11-12 Rudolph G. Bassist Knitting machine having a chopper bar controlling mechanism
US3446038A (en) * 1967-06-16 1969-05-27 Toshiaki Inui Weft inserting method and apparatus
US3603117A (en) * 1968-04-22 1971-09-07 Elitex Zavody Textilniho Warp-knitted pile fabric
US3606769A (en) * 1969-06-16 1971-09-21 Stevens & Co Inc J P Continuous weft feed for warp knitting machines
US3636731A (en) * 1970-08-04 1972-01-25 Robert F Jones Tension-relaxing device for feeding filling threads to a warp knitting machine
US3705503A (en) * 1970-07-02 1972-12-12 Elitex Zavody Textilniho Apparatus for forming a system of weft threads for further processing in textile machines

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2005951A (en) * 1932-06-25 1935-06-25 Morton James Manufacture of fabrics
US3145549A (en) * 1958-08-06 1964-08-25 Siccardi Francesco Apparatus for producing a knitted fabric having an inlay of weft threads
US3364701A (en) * 1966-02-25 1968-01-23 Stevens & Co Inc J P Apparatus for feeding filling threads to a warp knitting machine
US3410113A (en) * 1966-04-06 1968-11-12 Rudolph G. Bassist Knitting machine having a chopper bar controlling mechanism
US3446038A (en) * 1967-06-16 1969-05-27 Toshiaki Inui Weft inserting method and apparatus
US3603117A (en) * 1968-04-22 1971-09-07 Elitex Zavody Textilniho Warp-knitted pile fabric
US3606769A (en) * 1969-06-16 1971-09-21 Stevens & Co Inc J P Continuous weft feed for warp knitting machines
US3705503A (en) * 1970-07-02 1972-12-12 Elitex Zavody Textilniho Apparatus for forming a system of weft threads for further processing in textile machines
US3636731A (en) * 1970-08-04 1972-01-25 Robert F Jones Tension-relaxing device for feeding filling threads to a warp knitting machine

Also Published As

Publication number Publication date
DE2114699B2 (de) 1973-03-15
DE2114699C3 (de) 1973-10-04
DD96274A5 (show.php) 1973-03-12
JPS5122536B1 (show.php) 1976-07-10
GB1349497A (en) 1974-04-03
DE2114699A1 (de) 1972-10-19

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