US3752094A - Strand delivery means - Google Patents

Strand delivery means Download PDF

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Publication number
US3752094A
US3752094A US00159632A US3752094DA US3752094A US 3752094 A US3752094 A US 3752094A US 00159632 A US00159632 A US 00159632A US 3752094D A US3752094D A US 3752094DA US 3752094 A US3752094 A US 3752094A
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Prior art keywords
strand
yarn
needles
needle bar
motor
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Expired - Lifetime
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US00159632A
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English (en)
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J Short
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Milliken Research Corp
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Milliken Research Corp
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C15/00—Making pile fabrics or articles having similar surface features by inserting loops into a base material
    • D05C15/04—Tufting
    • D05C15/08—Tufting machines
    • D05C15/16—Arrangements or devices for manipulating threads
    • D05C15/18—Thread feeding or tensioning arrangements

Definitions

  • ABSTRACT (gl 60151347533: Apparatus for feeding strands of material to a plurality 58] new s 79 A 266 of closely positioned strand take-up means comprising 1 12/410 1 10 l separate strand-engaging advancing means for each takeup means positioned in closely adjacent rows, with guide means extending between adjacent rows for guid- [56] References Cited ing a strand to and from each advancing means to its UNITED STATES EN S corresponding takeup means.
  • This invention relates to means for delivering strands of material to a plurality of strand take-up means and, more particularly, to improved feed means for delivering yarns at variable rates to multiple needles of a tufting machine employed in production of wide yardage pile fabric, such as carpets.
  • Tufting machines for producing pile fabrics employ a reciprocating needle bar containing a plurality of needles to which yarns are fed and which are cyclically reciprocated into and out of a perpendicularly moving backing sheet to insert a plurality of yarn loops therein.
  • each needle in the needle bar has a corresponding looper element disposed on the opposite side of the backing sheet so that the strand carried through the backing sheet in the eye of each needle is engaged by the looper element and held to form a loop when the needle is withdrawn from the sheet.
  • tufting machines have been constructed with hollow needles and employ a pressurized fluid, such as air, to blow the yarns through the open ends of the needles as they penetrate the backing sheet to form the pile loops, thereby eliminating the need for cooperating looper elements.
  • a pressurized fluid such as air
  • Patterned pile fabrics are produced on tufting machines by selectively varying the rate of feed of the yarn strands to the yarn needles during each tufting cycle to correspondingly vary the height of the pile loops formed in the fabric product.
  • Pattern attachments for selectively varying the yarn feed rates may consist of multiple feed rollers which grip and positively advance the yarn strands to the needles.
  • the rollers are selectively driven at high and low speeds by clutch mechanisms programmed in accordance with a predetermined pattern. Two types of rotatable roller feeding means are described in U. S. Pat. No. 2,862,465 and in U. S. Pat. No. 3,134,529, respectively.
  • the drive shafts of the feed rollers of each of these pattern attachments are generally driven at variable speed rates by high and low speed magnetic clutches which selectively engage the drive shaft in response to activation by a pattern control mechanism, such as a pattern chain, a rotatable pattern drum or other such patterning device well known in the art.
  • a pattern control mechanism such as a pattern chain, a rotatable pattern drum or other such patterning device well known in the art.
  • the point of yarn feed be located as close as possible to the needles in order to provide a short path of yarn travel from the feeding point to the needles. This minimizes pattern irregularities caused by variations in yarn tensions and feed rates resulting from physical variations in the yarns themselves, as well as decreases the chances of entanglement between adja-- cent yarn strands being fed to th-e needles. Due to the relatively large size of the pattern attachments and their driving means, and the amount of space consumed thereby, only a limited number of yarn feeding rollers can be located in close proximity to the closely spaced needles of the tufting machine.
  • pile carpets produced in fifteen foot widths with loops or tufts every one eighth inch require 1440 needles across the needle bar. Because of the limited space for close location of the feeding means, it has been the practice to feed multiple yarn ends on each of the individual feed rollers to provide a yarn end to each of the needles in the needle bar. This obviously limits the pattern capabilities of the tufting machine and requires that a number of pattern repeats occur across the width of the fabric. It can thus be appreciated that very large patterns or a single overall pattern cannot be produced in a tufted carpet on a tufting machine employing the pattern attachments described.
  • the present invention is directed to an improved means for feeding plural strands of material to strand take-up means, such as needles of a tufting machine, wherein the rate of feed of the individual strands may be separately and independently controlled, with the strand feeding means located in compact, closely adjacent relation to the takeup means.
  • the individual yarn feeding means employed in the present invention may be of the general type disclosed in copending, commonly assigned U. S. Pat. Application, Ser. No. 17,312, of which I am a co-inventor.
  • Such feeding means comprise electrically operated motors of the pulseresponsive type which are incrementally stepped by electrical pulses to rotate by a predetermined amount yarn gripping rollers driven thereby. Depending on the total incremental rotation of the yarn motors and rollers, a desired amount of yarn is fed to the needles in each tufting cycle to provide the yarn loops of desired heights.
  • FIG. I is a diagrammatic perspective view of the principal components of a tufting machine showing the overall arrangement and position of the yarn strand feeding means of the present invention utilized therein;
  • FIG. 2 is an enlarged front elevation view, with portions broken away, of the yarn feeding means of FIG.
  • FIG. 3 is a side elevation view of the yarn feeding means of FIG. 2;
  • FIG. 4 is an enlarged perspective view, with portions broken away and in section, of a single yarn feeding member of the yarn feeding means for directing an individual yarn strand to a tufting needle.
  • FIG. 1 is a schematic perspective view of the major components of a tufting machine comprising a needle bar 10 which is vertically reciprocated by suitable means, not shown, to pass the needles thereof repeatedly through a suitable backing sheet 12.
  • the sheet 12 is supplied from a backing sheet supply roll 14 and is moved past the reciprocating needle bar in the direction of the arrow by rotatable feed rolls l6, 18 which are operated in synchronous manner with the reciprocating needle bar by conventional drive means, not shown.
  • a sheet of yarn strands 22 is supplied from a creel, not shown, to a yarn feed mechanism or pattern attachment 24 which advances individual yarn strands of the sheet at selected rates to the individual needles of the needle bar 10.
  • the needles of needle bar 10 may be of the hollow type as described in my U.S. Pat. No. 3,089,442 and pneumatic pressure employed to blow the strands through the open ends of the needles as the needles penetrate the primary backing sheet 12 to form pile loops 26 of yarn therein.
  • FIG. 2 is a front elevation of the attachment 24 which comprises a support panel 30 in which are mounted a plurality of rows 32 of yarn strand feeding means. Details of each strand feeding means are best shown in FIG. 4 and include a pair of strandengaging nip rollers 34, 36 which are rotatably driven by motor means 38 to advance an individual yarn strand to the strand take-up means or needles of the needle bar.
  • Each motor means includes a main body portion 40 and an elongate drive shaft 42 drivingly connecting the main body portion with the strand advancing roller 36.
  • the motors of motor means 38 are of the electric, pulse-responsive type and the main body portion 40 of each is supportably mounted in an opening of panel 30 and secured therein by a housing 44 attached to the face of the panel.
  • Roller 34 is attached to the end of drive shaft 42 and freely rotatable roller 36 is maintained in nip relation therewith by a spring mechanism 46 so that a yarn strand 48 passing to the advancing rollers is positively gripped-thereby.
  • each of the rows of strand-engaging advancing rollers and their corresponding motor means is a bank 49 of strand guide tubes for directing a yarn strand to each advancing means and from each advancing means to its corresponding needle in the needle bar.
  • Each of the interior banks of strand guide tubes is composed of a first section 50 of stacked entry tubes and a second section 52 of stacked exit tubes secured in back-tback relation by suitable means, such as welding.
  • the entry tubes in each section 50 which guide individual yarn strands to their respective strand advancing rollers in an adjacent row of advancing means are angled outwardly, top to bottom, and are stacked in a plane between and generally perpendicular to the spaced parallel planes in which are located the main body portions of the motors and the yarn advancing rollers.
  • the exit tubes in each section 52 of exit tubes which guide yarn strands from the other adjacent row of advancing rollers are angled in wardly from top to bottom and are stacked in a plane perpendicular to the spaced parallel planes of the motor means and advancing rollers.
  • Each needle of the needle bar is provided with a separate pair of strand-engaging advancing rollers and the individual yarn strands are guided to and from the rows of advancing rollers by the compact arrangement of yarn guide tubes disposed therebetween.
  • the rate of feed of each individual yarn strand may be separately regulated to each of the needles to provide loop-height patterning capabilities far exceeding the ability of the aforementioned yarn feed pattern attachments.
  • the main body portions 40 of the motor means 38 are mounted in openings in the support panel 30.
  • the support panel 30 is composed of mating sections 60, 62 which are secured by suitable means, such as bolts.
  • the sections are preferably constructed of heat conductive material such as stainless steel, aluminum, or the like, and the inner face of each section 60, 62 is provided with a plurality of recessed U-shaped channels which mate to form a plurality of U-shaped passageways 64 (FIG. 2) for conveying acooling fluid between the rows of motor means adjacent the main body portions thereof.
  • each U-shaped passageway 64 is connected by a conduit 66 to an inlet manifold 68, and the other open upper end of each U-shaped passageway is connected by a conduit 70 to an outlet manifold 72.
  • the inlet manifold 68 is supplied with a suitable cooling fluid, such as water, which may be continuously circulated through the support panel to provide means for cooling the motors.
  • each of the pulse-responsive electric motors may be controlled by a patterning device, such as a programmed magnetic tape, operably connected thereto through an electrical control unit 74 indicated schematically in FIG. 3.
  • a patterning device such as a programmed magnetic tape
  • electrical control unit 74 indicated schematically in FIG. 3.
  • individual signals may be sent to each pulse-responsive motor and its respective yarn-gripping rollers rotated a desired amount to variably and individually feed each yarn strand to each needle of the tufting machine, as described in commonly assigned U. S. Pat. application Ser. No. 17,3l2 mentioned above.
  • the rollers are readily accessible to the operator for threadup and maintenance of the feed mechanism during use.
  • the compact yarn feeding mechanism of the present invention can be installed and employed in close proximity to the needles of a tufting machine to provide selectively variable yarn feed independentlyto each needle.
  • the present invention has been described with specific reference to a tufting machine for manufacturing pile fabrics, it is obvious that the feeding mechanism may be employed in other apparatus wherein it is desirable to maintain individual feed control of strands to closely associated strand take-up means.
  • a tufting machine including a needle bar containing a plurality of yarn dispensing needles, means for moving a backing sheet past said needle bar, means for producing relative movement between the needle bar and backing sheet to cause cyclical penetration of the needles therethrough to insert loops of yarn therein, and means for feeding yam strands to each of the needles; the improvement wherein said feeding means comprises separate yarn strand-engaging means for each needle, separate motor means connected to each of said strand-engaging means for independently driving the same to longitudinally advance a strand engaged thereby, means mounting each motor means together with its corresponding strand-engaging means in plural closely adjacent parallel rows positioned close to the needles of said needle bar, and guide means extending between adjacent of said rows and generally parallel thereto for guiding a yarn strand from each of said strande'ngaging means to a corresponding one of said needles in said needle bar.
  • each of said motor means includes a main body portion and means drivingly connecting said main body portion to the corresponding advancing means to locate said engaging means and said main body portions of said motor means in spaced, generally parallel planes, and said guide means comprising a plurality of banks of strand-guiding tubes positioned generally between said planes.
  • each of said engaging means comprises roller means and including a first number of said tubes in at least one of said banks positioned to guide strands from one end of said rows to the roller means in an immediately adjacent row, and a second number of said tubes in said bank positioned to guide strands from the roller means in the other immediately adjacent row to the other end of said rows.
  • Apparatus as defined in claim 1 wherein said means mounting said motor means and feed rollers comprises a support panel, and means associated with said panel for cooling the motor means during operation of the apparatus.
  • each of the needles in said needle bar is hollow for the passage of a yarn strand therethrough.
  • each of the needles in said needle bar is substantially solid throughout its length and has an eyelet in its outer end portion for passage of a yarn strand therethrough.
  • each of said strand-engaging means compriseroller means, and said motor means includes means for rotating said roller means to longitudinally advance a strand engaged thereby.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Sewing Machines And Sewing (AREA)
US00159632A 1971-07-06 1971-07-06 Strand delivery means Expired - Lifetime US3752094A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15963271A 1971-07-06 1971-07-06

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US3752094A true US3752094A (en) 1973-08-14

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US00159632A Expired - Lifetime US3752094A (en) 1971-07-06 1971-07-06 Strand delivery means

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US (1) US3752094A (it)
BE (1) BE785815A (it)
CA (1) CA971827A (it)
DE (1) DE2233283C3 (it)
FR (1) FR2145236A5 (it)
GB (1) GB1363974A (it)
IT (1) IT960947B (it)
LU (1) LU65673A1 (it)
NL (1) NL7209218A (it)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3847098A (en) * 1973-07-23 1974-11-12 Card & Co Inc Yarn feed module for tufting machine
US4688497A (en) * 1986-11-12 1987-08-25 Card Roy T Yarn feed mechanism for tufting machine
US5182997A (en) * 1991-11-04 1993-02-02 Spencer Wright Industries, Inc. Tufting machine yarn feed roller assembly
EP0854220A3 (en) * 1996-11-27 1999-01-13 Tuftco Corporation Independent servo motor controlled scroll-type pattern attachment for tufting machine and computerized design system
EP1132514A3 (en) * 1996-11-27 2002-03-06 Tuftco Corporation Independent servo motor controlled scroll-type pattern attachment for tufting machine and computerized design system
US6502521B2 (en) 1996-11-27 2003-01-07 Tuftco Corporation Independent single end servo scroll pattern attachment for tufting machine and computerized design system
US20040025767A1 (en) * 2002-07-03 2004-02-12 Card-Monroe Corp. Yarn feed system for tufting machines
US6807917B1 (en) 2002-07-03 2004-10-26 Card-Monroe Corp. Yarn feed system for tufting machines
US20050204975A1 (en) * 2002-07-03 2005-09-22 Card Roy T Yarn feed system for tufting machines
US20070272137A1 (en) * 2006-05-23 2007-11-29 Christman William M System and Method for Forming Tufted Patterns
US20110048305A1 (en) * 2009-08-25 2011-03-03 Christman Jr William M Integrated motor drive system for motor driven yarn feed attachments
US9399832B2 (en) 2008-02-15 2016-07-26 Card-Monroe Corp. Stitch distribution control system for tufting machines
US9410276B2 (en) 2008-02-15 2016-08-09 Card-Monroe Corp. Yarn color placement system
BE1022969B1 (nl) * 2015-04-22 2016-10-24 Nv Michel Van De Wiele Inrichting voorzien van patroongestuurde componenten en textielmachine omvattende een dergelijke inrichting
US10072368B2 (en) 2014-06-05 2018-09-11 Card-Monroe Corp. Yarn feed roll drive system for tufting machine
US10233578B2 (en) 2016-03-17 2019-03-19 Card-Monroe Corp. Tufting machine and method of tufting
US11193225B2 (en) 2016-03-17 2021-12-07 Card-Monroe Corp. Tufting machine and method of tufting
US11585029B2 (en) 2021-02-16 2023-02-21 Card-Monroe Corp. Tufting maching and method of tufting
US12234587B2 (en) 2021-02-16 2025-02-25 Card-Monroe Corp. Tufting machine and method of tufting

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4062308A (en) * 1976-06-25 1977-12-13 Abram N. Spanel Two-pile height yarn feed for conventional tufting machine
US5983815A (en) * 1997-03-11 1999-11-16 Card-Monroe Corp. Tufting machine with pattern yarn feed and distribution device
GB2393454B (en) * 1999-12-20 2004-06-02 Tuftco Corp Method of automatically inputting parameters of tufting into a tufting machine
US6550407B1 (en) 2002-08-23 2003-04-22 Tuftco Corporation Double end servo scroll pattern attachment for tufting machine
WO2015175786A1 (en) 2014-05-14 2015-11-19 Shaw Industries Group, Inc. Artificial turf and associated devices and methods for making same

Cited By (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3847098A (en) * 1973-07-23 1974-11-12 Card & Co Inc Yarn feed module for tufting machine
US4688497A (en) * 1986-11-12 1987-08-25 Card Roy T Yarn feed mechanism for tufting machine
US5182997A (en) * 1991-11-04 1993-02-02 Spencer Wright Industries, Inc. Tufting machine yarn feed roller assembly
EP0854220A3 (en) * 1996-11-27 1999-01-13 Tuftco Corporation Independent servo motor controlled scroll-type pattern attachment for tufting machine and computerized design system
EP1132514A3 (en) * 1996-11-27 2002-03-06 Tuftco Corporation Independent servo motor controlled scroll-type pattern attachment for tufting machine and computerized design system
US6502521B2 (en) 1996-11-27 2003-01-07 Tuftco Corporation Independent single end servo scroll pattern attachment for tufting machine and computerized design system
US6834601B2 (en) 2002-07-03 2004-12-28 Card-Monroe Corp. Yarn feed system for tufting machines
US6807917B1 (en) 2002-07-03 2004-10-26 Card-Monroe Corp. Yarn feed system for tufting machines
US7905187B2 (en) 2002-07-03 2011-03-15 Card-Monroe Corp. Yarn feed system for tufting machines
US20050056197A1 (en) * 2002-07-03 2005-03-17 Card-Monroe Corp. Yarn feed system for tufting machines
US6945183B2 (en) 2002-07-03 2005-09-20 Card-Monroe Corp. Yarn feed system for tufting machines
US20050204975A1 (en) * 2002-07-03 2005-09-22 Card Roy T Yarn feed system for tufting machines
US7096806B2 (en) 2002-07-03 2006-08-29 Card-Monroe Corp. Yarn feed system for tufting machines
US20060272564A1 (en) * 2002-07-03 2006-12-07 Card Roy T Yarn Feed System for Tufting Machines
US20040025767A1 (en) * 2002-07-03 2004-02-12 Card-Monroe Corp. Yarn feed system for tufting machines
JP2008144349A (ja) * 2002-12-18 2008-06-26 Card Monroe Corp タフト作製機械のための糸送りシステム
US20070272137A1 (en) * 2006-05-23 2007-11-29 Christman William M System and Method for Forming Tufted Patterns
US7634326B2 (en) 2006-05-23 2009-12-15 Card-Monroe Corp. System and method for forming tufted patterns
US11072876B2 (en) 2008-02-15 2021-07-27 Card-Monroe Corp. Stitch distribution control system for tufting machines
US10400376B2 (en) 2008-02-15 2019-09-03 Card-Monroe Corp. Stitch distribution control system for tufting machines
US9399832B2 (en) 2008-02-15 2016-07-26 Card-Monroe Corp. Stitch distribution control system for tufting machines
US9410276B2 (en) 2008-02-15 2016-08-09 Card-Monroe Corp. Yarn color placement system
US10995441B2 (en) 2008-02-15 2021-05-04 Card-Monroe Corp. Yarn color placement system
US10443173B2 (en) 2008-02-15 2019-10-15 Card-Monroe, Corp. Yarn color placement system
US10081897B2 (en) 2008-02-15 2018-09-25 Card-Monroe Corp. Stitch distribution control system for tufting machines
US20110048305A1 (en) * 2009-08-25 2011-03-03 Christman Jr William M Integrated motor drive system for motor driven yarn feed attachments
US8201509B2 (en) 2009-08-25 2012-06-19 Card-Monroe Corp. Integrated motor drive system for motor driven yarn feed attachments
US10865506B2 (en) 2014-06-05 2020-12-15 Card-Monroe Corp. Yarn feed roll drive system for tufting machine
US10072368B2 (en) 2014-06-05 2018-09-11 Card-Monroe Corp. Yarn feed roll drive system for tufting machine
AU2016251949B2 (en) * 2015-04-22 2020-10-22 Nv Michel Van De Wiele Device equipped with pattern-controlled components and textile machine comprising such a device
BE1022969B1 (nl) * 2015-04-22 2016-10-24 Nv Michel Van De Wiele Inrichting voorzien van patroongestuurde componenten en textielmachine omvattende een dergelijke inrichting
JP2018517851A (ja) * 2015-04-22 2018-07-05 ナームローゼ・フェンノートシャップ・ミシェル・ファン・デ・ウィーレＮｖ Ｍｉｃｈｅｌ Ｖａｎ Ｄｅ Ｗｉｅｌｅ パターン制御部品を搭載する装置およびその装置を備える繊維機械
US10704170B2 (en) 2015-04-22 2020-07-07 Nv Michel Van De Wiele Device equipped with pattern-controlled components and textile machine comprising such a device
US20180148868A1 (en) * 2015-04-22 2018-05-31 Nv Michel Van De Wiele Device equipped with pattern-controlled components and textile machine comprising such a device
CN107532347A (zh) * 2015-04-22 2018-01-02 米歇尔.范德威尔公司 配备图案控制部件的装置和包括该装置的纺织机
WO2016170472A1 (en) * 2015-04-22 2016-10-27 Nv Michel Van De Wiele Device equipped with pattern-controlled components and textile machine comprising such a device
US11702782B2 (en) 2016-03-17 2023-07-18 Card-Monroe Corp. Tufting machine and method of tufting
US12146251B2 (en) 2016-03-17 2024-11-19 Card-Monroe, Corp. Tufting machine and method of tufting
US11193225B2 (en) 2016-03-17 2021-12-07 Card-Monroe Corp. Tufting machine and method of tufting
US12595607B2 (en) 2016-03-17 2026-04-07 Card-Monroe, Corp. Tufting machine and method of tufting
US10233578B2 (en) 2016-03-17 2019-03-19 Card-Monroe Corp. Tufting machine and method of tufting
US11708654B2 (en) 2016-03-17 2023-07-25 Card-Monroe Corp. Tufting machine and method of tufting
US12173439B2 (en) 2016-03-17 2024-12-24 Card-Monroe Corp. Tufting machine and method of tufting
US10995440B2 (en) 2016-03-17 2021-05-04 Card-Monroe Corp. Tufting machine and method of tufting
US12129586B2 (en) 2021-02-16 2024-10-29 Card-Monroe Corp. Tufting machine and method of tufting
US12234587B2 (en) 2021-02-16 2025-02-25 Card-Monroe Corp. Tufting machine and method of tufting
US20250230593A1 (en) * 2021-02-16 2025-07-17 Card-Monre Corp. Tufting machine and method of tufting
US12584255B2 (en) * 2021-02-16 2026-03-24 Card-Monroe, Corp. Tufting machine and method of tufting
US11585029B2 (en) 2021-02-16 2023-02-21 Card-Monroe Corp. Tufting maching and method of tufting
US12595606B2 (en) 2021-02-16 2026-04-07 Card-Monroe, Corp. Tufting machine and method of tufting

Also Published As

Publication number Publication date
DE2233283B2 (de) 1975-03-06
CA971827A (en) 1975-07-29
FR2145236A5 (it) 1973-02-16
LU65673A1 (it) 1973-01-26
BE785815A (fr) 1972-11-03
IT960947B (it) 1973-11-30
DE2233283A1 (de) 1973-01-18
NL7209218A (it) 1973-01-09
DE2233283C3 (de) 1975-10-16
GB1363974A (en) 1974-08-21

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