US2158547A - Yarn furnishing device - Google Patents

Yarn furnishing device Download PDF

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Publication number
US2158547A
US2158547A US14492A US1449235A US2158547A US 2158547 A US2158547 A US 2158547A US 14492 A US14492 A US 14492A US 1449235 A US1449235 A US 1449235A US 2158547 A US2158547 A US 2158547A
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United States
Prior art keywords
yarn
wheels
knitting
supply
indicator
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Expired - Lifetime
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US14492A
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English (en)
Inventor
Robert H Lawson
Jr William L Smith
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Hemphill Co
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Hemphill Co
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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
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/48—Thread-feeding devices
    • 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

Definitions

  • This invention relates to a new method and mechanism for feeding yarn to needles of a knitting machine under a practically uniform tension.
  • the invention has been illustrated and described with respect to a multi-feed knitting machine of the rotary needle cylinder type having latch needles, ⁇ however, we are not to be limited thereto since the invention is useful with any knitting machine wherein it is desired to feed a yarn l0 to needles under a predetermined and substantially invariable gtension.
  • Fig. 1 is a sectional view showing the invention as applied to a rotary needle cylinderfmultifeed knitting machine, certain parts of the machine being broken away for the purpose of conserving space and showing the invention with as large a scale as possible;
  • Fig. 2 is a plan view illustrating a portion of the multi-feed machine and showing how each yarn passes about the feeding rollers, tensions, etc.; l
  • Fig. 3 is a detail sectional view showing the master drive for the feeding discs
  • Fig. 4 is a sectional View showing how a yarn is drawn about one of the measuring wheels and thereafter through the feeding discs to the needles;
  • Fig-5 is an elevation corresponding to Fig. 4.
  • the method and mechanism herein described is capable of drawing yarn from a supply which 5 may offer varying resistance to being removed from such supply, and also is capable of feeding such yarn at substantially uniform tension under all conditions of knitting such as drawing plain stitches, tuck stitches or floating.
  • This furnish- 10 lng device will also take care of yarn speed during any reasonable change of stitch length which it would be practicable to makein the conventional multi-feed knitting machine.
  • Fig. 1 we have illustrated the invention as applied to a multi-feed machine having a circular base I, a rotary needle cylinder 2, a stitch ring 3, fabric supporting ring 4 and latch needles 5 reciprocating in tricks within said cylinder, said needles being capable of drawing plain loops, tuck 20 stitches or oating in accordance with stitch cams and pattern control mechanism, not shown.
  • Said spindle 9 also projects upwardly and supports a creel whereon are mounted yarn bobbins suiiicient in number to supply the needles of said machine at the several 30 feed points. Since they form no essential part of this invention the creel and supplies of yarn are not shown and said yarn is first shown at I9 as it passes downwardly through guiding eyes II and I2 mounted in discs I3, I4 clamped to spindle 9. These guiding eyes II, I2 are offset slightly to provide a small amount of tension in case the yarn tends to iiow too freely from one of the supplies, such being probable when the machine is suddenly stopped. To protect the mechanism 40 there-below a Celluloid disc I5 is attached directly beneath said disc I4. This prevents lint or other dirt from collecting upon the yarn speed indicating devices or the feeding discs which are to be presently described. 45
  • Eachyarn passes downwardly through guides I6 and I1 and about the periphery of a comparatively frictlonless measuring Wheel I8 mounted therebetween, then on through furnishing wheels to a yarn feeding guide I8.
  • Said measuring 50 wheel I8 and its cooperating guides I6, I1 are permanently attached to a circular bracket I9 clamped by means of a set screw to spindle 9.
  • These measuring wheels, their bearings, yarn guides I6', l1 and their supporting bracket are 5;
  • Master disk 20 is driven by means of a small friction wheel 22 which is mounted to rotate with a shaft 23.
  • Friction wheel 22 is fixed to a hub 24 which is in turn fast to a sleeve 25, this sleeve being capable of sliding on spindle 23 but being clamped thereon by means of a set screw 26 which bears within a slot within the sleeve itself.
  • This spindle 23 is rotatable within a bushing 23' at its inner end, said bushing being better shown in Fig. 3. At the opposite end said spindle is rotatable within an adjustable bearing 21 which is in turn carried in a bracket 28 whichy extends from an upright post 29 attached to the circular base.
  • This bracket 28 also has clamped therein by means of suitable set screws, a spindle which carries a hub 30 freely rotatable on said spindle and also provided with an integral gear 3
  • a collar 33 forming one end of a hub portion of gear 34 is clamped therewith tospindle 23 by means of a set screw.
  • This colla-r and spindle 23 are maintained in axial position by engagement with a forked angular piece indicated at 35 and attached permanently to the opposite end 36 of U-shaped bracket 28. It may thus be seen that master disk 20 is driven by means of friction wheel 22, gears 3
  • sleeve 25 may be adjusted along spindle 23 so that friction wheel 22 will engage said disk at a different radial position.
  • a casing is built up of disk 31, a conical extension 38 and a cap portion 39.
  • the disk 31 has a hub 46 which is fixedly attached to Vcentral spindle 9 by means of a set screw 4
  • the conical portion 38 fits aboutrsaid disk tightly enough to exclude dirt therefrom and to retain lubricant within the enclosure formed by the two, and also provides bearings for short spindles 42 and 43, see Fig. 4.
  • the cap portion 39 fits snugly withinthe inner diameter of said conical part and has a central hub which provides a support for bushing 23 which supports the inner end of spindle 23, and also two studs 44, one of which is shown, to carry freely rotatable disks 45 at their outer ends so that master disk 20 will be evenly supported at threeequally spaced points.
  • Spindle 23 also has fixed tof' its inner ⁇ end a bevel pinion 46 meshing with a gear 41.
  • This latter gear has a hub .48 which rotates on a bushing 49, said hub being ma/chined to support a large bevel gear 50 which in turn drives small pinions 5
  • Gear 41 and its hub 48 are supported in a proper vertical position by means of a suitable thrust bearing such as is the casing and are freely rotatable in element 38, and also have fixed to their outer ends two feeding Wheels 55 and 56.
  • These feeding wheels are preferably made of some hard material which has a fairly smooth surface. Metal has been used -with some success but we preferably make these wheels of .some fibrous material. The fibrous material exerts about the proper amount of frictional resistance upon a yarn which is drawn through guides and wrapped about said wheels in the form of a figure -B.
  • the convolutions of yarn which are wrapped about the small feed wheels separated they are formed with oppositely disposed conical surfaces, and further, the yarn indicated at I0, Fig.
  • a knitting machine having needles and a source of yarn supply, means operatively positioned between the needles and the source of yarn supply consisting of two rotary posts about The' yarn will merely bewhich the yarn is passed and by means of which the yarn is drawn from the source of supply, the rotations of the posts being sulcient to draw the maximum amount of yarn required by the needles during the knitting operation and the construction and operation being such that when the needles require less than the maximum amount of yarn, the yarn is not in tight engagement with the posts.
  • a knitting machine including a. source of yarn supply and needles. a stationary supporting member positioned operatively between the source of yarn supply and the needles, ⁇ rotary elements carried by the said member and -companion to each of a plurality of feeding stations, the supporting member having a closed, lubricating casing within which are the driven ends of the Jrotary yarn drawing elements, a spindle within the casing and having mounted thereon a rotary driving element which in turn rotates the yarn engaging elements.
  • a knitting machine having a plurality of feeding stations and a source of yarn supply, yarn movable indicators individual to each of the feeding stations and in association therewith a master indicator, means for rotating the master indicator and the parts being so constructed that when the machine is knitting the relative rates at which two or more of the yarns are being knitted may be readily determined, said means for rotating the master indicator including a driven shaft and an element in driving engagement with the master indicator, a sleeve on the shaft and to which sleeve the driving element for the indicator is connected, the sleeve being relatively movable along the shaft and means for locking the sleeve in adjusted position.
  • a knitting machine having a plurality of feeding stations and a source of yarn supply, yarn movable indicators individual to each of. the feeding stations and in association therewith a master indicator, means for rotating the master indicator and the parts being so constructed that when the machine is knitting the relative rates at which two or more of the yarns are being knitted may be readily determined, said means for rotating the master indicator including a driven shaft ⁇ and an element in driving engagement with the master indicator, the element for driving the master indicator being in engagement with the master indicator at one side of its axis, an element in engagement with the master indicator and on the other side of the axis from the element for driving the indicator for supporting the indicator and preventing the driving means for the indicator from causing the same to cant or tilt.
  • a knitting machine having a plurality of feeding stations and a source of yarn supply, yarn movable indicators individual to each of the feeding stations and in association therewith a master indicator, means for rotating the master indicator and the parts being so constructed that when the machine is knitting the relative rates at which two or more of the'yarns are being knitted may be readily determined, said means for rotating the master indicator including a driven shaft and an element in driving engagement with the master indicator, a sleeve on the shaft and to which sleeve the driving element for the indicator is connected, -the sleeve being relatively movable along the shaft and means for locking the sleeve in adjusted position, the element i'ory driving the master indicator being in engagement with the master indicator at one side of its axis, an element in engagement with the master indicator and on the other side of the axis from the element for driving the indicator for supporting the indicator and preventing the driving means for the indicator from causing the same to cant or tilt.
  • a knitting machine having a plurality of feeding stations and a source of yarn supply, yarn movable indicators individual to each of the feeding stations and in association therewith a master indicator, means for rotating the master indicator and the parts being so constructed that when the machine is knitting the relative rates at which two or more of the yarns are being knitted may be readily determined, said means for rotating the master indicator including a driven shaft and an element in driving engagement with the master indicator, a stationary shaft supported axially of the machine and upon whichthe master indicator is supported ,in its rotary movements, yarn engaging rotary elements for engaging each of the several yarns and causing them to be drawn from the source of supply thereby relieving the needles from the necessity of drawing the yarns directly from the source of supply, the rotary yarn engaging elements being mounted in a fixed support which in turn is supported on the shaft, a driving element rotatably mounted upon the shaft and in driving engagement with the yarn drawing elements to eect rotation thereof.
  • a knitting machine having a plurality of feeding stations and a source of yarn supply, yarn movable indicators individual to each of the feeding stations and in association therewith a master indicator, means for rotating the master indicator and the parts being so constructed that when the machine is knitting the relativer rates at which two or more of the yarns are being knitted may be readily determined, said means for rotating the master indicator including a driven shaft and an element in driving engagement with the master indicator, a sleeve on theshaftand to which sleeve the driving element for the indicator is connected, ⁇ the sleeve being relatively movable along the shaft and means for locking the sleeve in adjusted position, a stationary shaft supported axially of the machine and upon which the master indicator is supported in its rotary movements, yarn engaging ro- .tary elements for engaging each of the several yarns and causing them to be drawn from the source of.
  • the rotary yarn engaging elements being mounted in a fixed support which in turn is supported on the shaft, a driving element, rotatably mounted upon the shaft and in driving engagement with the yarn drawing elements to effect rotation thereof.
  • a knitting machine having a plurality of feeding stations and a source of yarn supply, yarn movable indicators individual to each of the feeding stations and'in association therewith a master in cator, means for rotating the master indicator and the parts being so constructed that when the machine is knitting the relative rates at which two or more of the yarns are being knitted may be readily determined, said means for rotating the master indicator including a driven shaft and an element in driving engagement with the master indicator, a sleeve on.
  • the shaft and to which sleeve the driving element for the indicator is connected the sleeve being relatively movable along the shaft and means for locking the sleeve in adjusted position
  • the element for driving the master indicator being in engagement with the master indicator ⁇ at one side of its axis, an element in engagement with the master indicator and on the other side of the axis from the element for driving the indicator for supporting the indicator and preventing the driving means for the indicator from causing the same to cant or tilt
  • a stationary shaft supported axially of the machine and upon which the master indicator is supported in its rotary movements, yarn engaging rotary elements for engaging each of the several yarns and causing them to be drawn from the source of supply thereby relieving the needles Vfrom the necessity of drawing the yarns directly from the source of supply
  • the rotary yarn engaging ele'- ments being mounted in a fixed support which in turn is supported on the shaft, a driving element rotatably mounted upon the shaft and in driving engagement with the yarn drawing elements to effect rotation thereof.
  • a knitting machine having a plurality of feeding stations and a source of yarn supply
  • yarn movable indicators individual to each of the feeding stations and in association therewith a master indicator, means for rotating the master indicator and the parts being so constructed that when the machine is knitting the relative rates at which two or more of the yarns are being knitted may be readily determined, said means for rotating the master indicator including a driven shaft and an element in driving engagement with the master indicator, a sleeve on the shaft and to which sleeve the driving element for the indicator is connected, the sleeve being relatively movable along the shaft and means for locking the sleeve in adjusted position, the portion of the master indicator engaged by the driving element having friction material 2l.
  • a knitting machine having in combination a yarn supply, knitting instrumentalities, and yarn furnishing means operatively interposed between the two, said means being constantly driven at a speed greater .than the maximum speed at which said yarn is to be fed, guide means for guiding said yarn onto said furnishing means about which it is wrapped a sufficient number of times to be eiectively engaged about the same and tension means interposed between the furnishing means and said instrumentalities, the construction being such that when the yarn furnishing means has drawn more yarn from the source of supply than is called for by the knitting instrumentalities the effective engagement of the yarn by the yarn furnishing means is automatically decreased.
  • a yarn furnishing device for a knitting machine comprisingl two oppositely driven, smooth surfaced wheels, driving means for driving one of said wheels at a predetermined speed and positive driving means between the two for driving the second wheel from the first at the same speed but in an opposite direction.
  • a yarn furnishing device for multi-feed knitting machines comprising a casing, a plurality of smooth surfaced, yarn engaging wheels projecting from said' casing, a master gear within said casing meshing with a pinion for driving each of said wheels, said master gear being driven from a suitable source upon said knitting maonto and from said wheel in di'erent planes.
  • a textile machine having a source of yarn 13.
  • a method of furnishing yarn to the needles of a knitting machine including the steps of variably advancing a yarn and delivering it at a point adjacent said needles with substantially no tension imposed thereon, and then applying a predetermined and controlled amount of tension to said yarn just before it is taken by said needles.
  • a method of feeding yarn from a supply tol yarn receiving elements of a textile machine under a predetermined and comparatively uniform tension including the steps of rotating an element at a peripheral speed in excesssof the normal linear speed at which yarn is to be fed, engaging the yarn about said element with a sufficient number of turns to effectively advance the same when under tension, and at the same time, keeping the convolutions of yarn separated as they'pass about the rotating element, and imposing a definite and substantially uniform amount of tension upon said yarn after it has left said element and before being taken by the receiving element or elements.
  • a method o'f delivering yarn or the like from a supply to receiving elements of a textile machine including the steps of variably feeding the yarn or the like into proximity to said receiving elements with comparatively no tension existing therein, and thereafter applying controlled tension to ,said yarn before it is taken by said elements.
  • a txtlle machine having a source of yarn supply and a rotary member for engagingv: and drawing yarn from the said source of supply, the effective drawing being variable as use proceeds, the engagement of the yarn by the yarn furnishing means being such that when slack yarn is produced by the yarn furnishing means, the effective surface engagement of the yarn by the'said 'yarn furnishing means is decreased in combination with means for maintaining a controlled tension upon the yarn.
  • a knitting machine having a source of yarn supply and a rotary member for engaging and drawing yarn from the said source of supply, the effective drawing being variable as knitting proceeds, the engagement of the yarn by the yarn furnishing means being such that when slack yarn is produced by the yarn furnishing means, the effective surface engagement of the yarn by the said yarn furnishing means is decreased in combination with means for maintaining strands of the yarn in a separated relation to avoid entanglement.
  • a knitting machine having a source of yarn supply and two oppositely tapered rotary members to maintain strands of the yarn separated and for drawing yarn from the said source of supply, the effective drawing being variable as knitting proceeds, in combination with means for maintaining strands of the yarn in a separated relationto ⁇ avoid entanglement.
  • a textile machine having a: source of yarn supply and'two oppositelyy tapered rotary members to maintain strands of the yarn separated and ⁇ for drawing yarn from the said source of supply, the effective drawing being variable as knitting proceeds, in combination with means for maintaining strands of the yarn in a separated relation to avoid entanglement.
  • a method of feedingyarn to fabric forming or textile machines including the variable feeding of a textile yarn to fabric forming elements of the textile machine, the variable feeding of the yarn being effected by variation of the effective contacting surface between the yarn and a driven rotaryvelement, and subjecting the yarn to a variable tension before passing to the elements of the Ytextile machine, ⁇ the rotations of the element and the engagement of the yarn by said rotary element being such that when slack yarn is produced by the yarn furnishing means, the effective surface engagement ofthe yarn by the said yarn furnishing means is decreased.
  • a knitting machine having a source of textile yarn supply and knitting elements, variable yarn furnishing means in engagement with the ⁇ yarn and, operatively positioned between the source of yarn supply and the knitting elements, the engagement of the yarn by the yarn furnishing means being such lthat when slack yarn is produced by the yarn furnishing means, the effective surface engagement of the yarn by the said yarn furnishing means is decreased, and adjustable means operatively positioned between the yarn furnishing means and the knitting elements for imposingvariable, controlled tension upon the yarn.
  • a knitting machine having a source of yarr supply. yarn furnishing means, and knitting elements, operatively positioned in that order, anc means associated with the yarn furnishing mean: for maintaining adjacent strands of the yarn ir a' separated relation to avoid entanglement, the yarnfurnishing means including a rotary elemenl rotating at constant speed which has variable effective contact with the yarn so that the yarr furnishing means always furnishes suiicient yarr to the knitting elements.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US14492A 1934-08-28 1935-04-03 Yarn furnishing device Expired - Lifetime US2158547A (en)

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CA442267X 1934-08-28

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US (1) US2158547A (ja)
BE (1) BE410810A (ja)
DE (1) DE649373C (ja)
FR (1) FR794039A (ja)
GB (1) GB442267A (ja)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2481718A (en) * 1947-08-06 1949-09-13 Philip A Brooks Circular knitting machine
US2532467A (en) * 1947-12-11 1950-12-05 Hemphill Co Method for controlling yarn
US2536537A (en) * 1943-10-27 1951-01-02 Christiansen Christian Device for controlling the tension of thread or yarn
US2627738A (en) * 1953-02-10 Elastic yarn feeding means for
US2650044A (en) * 1950-10-09 1953-08-25 Robbins Mills Inc Zero twist yarn tensioning device
US2742143A (en) * 1953-08-17 1956-04-17 Proctor & Schwartz Inc Apparatus for handling materials in strand or rope form
US2744399A (en) * 1954-06-18 1956-05-08 Stibbe G & Co Ltd Yarn feeding mechanism for knitting machines
US3323753A (en) * 1964-10-21 1967-06-06 Richard C Spurgeon Yarn furnishing device
US3435602A (en) * 1965-05-20 1969-04-01 Okonite Co Strand wrapping machine
US4570312A (en) * 1983-11-29 1986-02-18 Whitener Jr Charles G Method and apparatus for producing entangled yarn

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB657503A (en) * 1948-08-05 1951-09-19 Stibbe G & Co Ltd Improvements in or relating to yarn feeding mechanism for knitting machines
CH289657A (fr) * 1949-06-02 1953-03-31 Lebocey Machines Machine de bonneterie munie d'un dispositif autorégulateur pour la délivrance du fil d'alimentation.
DE853791C (de) * 1949-11-17 1952-10-27 Mayer & Cie Maschinenfabrik Fadenzubringer-Vorrichtung fuer Rundwirkmaschinen
DD136861B1 (de) * 1978-06-02 1981-08-26 Wirkmaschinenbau Karl Marx Veb Vorrichtung zur zufuehrung von faeden an textilmaschinen
GB2127046B (en) * 1982-09-14 1986-03-05 Courtaulds Plc Yarn feed mechanism
DE3332146A1 (de) * 1982-09-14 1984-03-15 Courtaulds Plc, London Garnzufuehrungseinrichtung fuer eine strickmaschine
DE19546404A1 (de) * 1995-12-12 1997-06-19 Terrot Strickmaschinen Gmbh Fadenliefervorrichtung

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2627738A (en) * 1953-02-10 Elastic yarn feeding means for
US2536537A (en) * 1943-10-27 1951-01-02 Christiansen Christian Device for controlling the tension of thread or yarn
US2481718A (en) * 1947-08-06 1949-09-13 Philip A Brooks Circular knitting machine
US2532467A (en) * 1947-12-11 1950-12-05 Hemphill Co Method for controlling yarn
US2650044A (en) * 1950-10-09 1953-08-25 Robbins Mills Inc Zero twist yarn tensioning device
US2742143A (en) * 1953-08-17 1956-04-17 Proctor & Schwartz Inc Apparatus for handling materials in strand or rope form
US2744399A (en) * 1954-06-18 1956-05-08 Stibbe G & Co Ltd Yarn feeding mechanism for knitting machines
US3323753A (en) * 1964-10-21 1967-06-06 Richard C Spurgeon Yarn furnishing device
US3435602A (en) * 1965-05-20 1969-04-01 Okonite Co Strand wrapping machine
US4570312A (en) * 1983-11-29 1986-02-18 Whitener Jr Charles G Method and apparatus for producing entangled yarn

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Publication number Publication date
GB442267A (en) 1936-02-05
DE649373C (de) 1937-08-27
BE410810A (ja)
FR794039A (fr) 1936-02-06

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