US3903682A - Apparatus for initiating operation of a combined drawing and texturing machine for yarn - Google Patents

Apparatus for initiating operation of a combined drawing and texturing machine for yarn Download PDF

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Publication number
US3903682A
US3903682A US430791A US43079174A US3903682A US 3903682 A US3903682 A US 3903682A US 430791 A US430791 A US 430791A US 43079174 A US43079174 A US 43079174A US 3903682 A US3903682 A US 3903682A
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United States
Prior art keywords
yarn
heating element
curved bar
twist
heated
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Expired - Lifetime
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US430791A
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English (en)
Inventor
Henri Crouzet
Jean-Claude Dupeuble
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IC-ACBF
Ateliers Roannais de Constructions Textiles SA
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Ateliers Roannais de Constructions Textiles SA
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Assigned to IC-ACBF reassignment IC-ACBF ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ASA, BY: DUTILLEUL, CLAUDE (COURT TRUSTEE')
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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
    • D02G1/0266—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting false-twisting machines
    • D02G1/0273—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting false-twisting machines threading up and starting the false-twisting machine

Definitions

  • the present invention relates to combined drawing and texturing machines. More particularly, the present invention relates to drawing and texturing machines in which drawing and false twist texturing of thermoplastic synthetic yarns are performed in a combined manner and preferably simultaneously.
  • the yarn in order to produce a synthetic yarn having improved bulk and/or extensibility, the yarn may be subjected to a texturing treatment by false twist during which the yarn continuously undergoes the operations of twisting, setting, untwisting and finally resetting.
  • one apparatus for drawing synthetic plastic yarns and texturing the yarn by false twist includes means for combining the steps of drawing and texturing.
  • the apparatus utilized comprises means for supplying the synthetic yarn to be drawn and textured, a twist-setting member, a heating assembly positioned upstream of the above member and movable to an out-of-the-way position, a yarn feeder situated upstream of the heated twist setting member, a false twist spindle, a yarn feeder situated downstream of the spindle, and elements for winding up the so produced textured yarn.
  • the heating assembly includes a heating element and a curved bar capable of at least partially surrounding the heating element.
  • the curved bar is pivoted at one of its ends about an axis which is substantially parallel to the principal axis of the heating element and carries yarn deflecting elements at both ends.
  • An arm connected by one of its ends to the fulcrum of the bar carries a yarn deflecting element at its free end and has a clever portion which is also joined to the curved bar in the vicinity of its fulcrum. When the lever is lifted, it causes the assembly to pivot about the heating element.
  • the heating element may be formed of a metallic cylinder or drawing finger which is heated by any suitable means, such as electricity or hot liquid, while the twist setting member may consist of an electrically heated, curved tube.
  • the deflecting means situated at the appropriate ends of the bar may utilize stationary diabolo-shaped yarn guides which are elements well known per se in the textile industry. Fixed diabolo-shaped yarn guides of ceramic material are conveniently employed.
  • This invention is particularly suitable for machines intended simultaneously to perform the drawing and texturing steps.
  • FIG. 1 shows one embodiment of apparatus according to this invention in its normal position; i.e., prior to strat up in normal running of the drawing and texturing frame;
  • FIG. 2 schematically shows the apparatus according to the invention of FIG. 1 in the start up or launching position
  • FIGS. 3 and 4 are views similar to FIGS. 1 and 2 of a second embodiment.
  • a polyester yarn 1 having a residual draw ratio of 3.5 is unwound from a yarn package (not shown), passes through a dish-type tensioning means 2, then under a texturing floor, and thereafter enters the apparatus according to the invention.
  • This apparatus includes a draw finger 3 in the form of a cylinder of, for example, 60 mm outside diameter, heated by electricity.
  • a curved bar 4 is pivotable about its end carrying a yarn guide 5 about an axis which is parallel to the axis of the draw finger 3.
  • Carried at each end of the curved bar 4 are fixed diabolo-shaped yarn guides 5 and 6 made of ceramic material and having inner necks with a diameter of IO mm.
  • the curvature of the bar 4 substantially is such as to wrap around the draw finger 3 and the length of the bar 4 is such that the yarn 1 passing under the yarn guides 5 and 6 is in contact with the finger over an angle of about 180.
  • An arm 7 connected to the bar 4 at the position of yarn guide 5 carries at its free end a fixed diaboloshaped yarn guide 8 of the same shape and nature as yarn guides 5 and 6.
  • a lever 9 is joined both to the bar 4 and the arm 7 at the pivot point 5.
  • the lever 9 has suitable means associated therewith, such as springs, notches, etc., to permit it to pass from the FIG. 1 position to the FIG. 2 position and to remain arrested in either position.
  • Further yarn deflecting means in the form of a fixed diabolo-shaped yarn guide 10 is located upstream of this assembly.
  • the axis of the yarn guide 10 is parallel to and situated in the same plane as the fulcrum 5 and the draw finger 3. All of the axes of the yarn guides 5, 6, 8 and 10 are substantially parallel.
  • the texturing frame includes a first yarn feeder 11, which may utilize a belt 16 which holds the yarn in engagement with a roller 17. From the yarn feeder 11, the yarn advances through a texturing furnace or heating member 12 consisting of an electrically heated, curved tube having a length of one meter. Downstream of the furnace 12 is a conventional false twist spindle l3, and a second yarn feeder 14 which is similar to the feeder 11. However, the feeder 14 is gradually positioned, such as the one which is, for example, described in U.S. Pat. No. 3,831,830, on a Yam Feeding Device for Textile Machines.” Further upstream there is a second furnace, a further array of delivery rollers and finally yarn wind-up means, all of which are well known per se and are not shown.
  • the yarn is next passed into the disengaged feeder 1 1, into the furnace 12, through the disengaged spindle l3 and finally into the feeder 14 which is held in slipping" condition; i.e., is not entirely engaged.
  • the yarn, which is now introduced into the furnace 12, has been virtually drawn and has no tendency to crystallize. Therefore, the yarn will not break, thus making the launching operation possible.
  • the yarn l is next passed manually through all of the other successive elements of the machine; i.e., the feeders and second furnace, etc. The yarn is then recovered at a waste suction nozzle.
  • the feeder 11 When the start up or launching operation is completed, the feeder 11 is engaged and the lever 9 is depressed so that the yarn l is no longer in contact with the heating element or, rather, the finger 3. The feeder l4 and the spindle 13 are then engaged and finally the textured yarn is subsequently wound on a receiving bobbin (not shown).
  • lever 9 and the feeder 16 can be tied together, so that the engagement of the feeder 16 provides the opening of the lever 9.
  • the method according to the invention consists of utilizing a heating assembly situated upstream of the furnace for launching the yarn.
  • the assembly is then, in effect, disengaged from the yarn after the launching operation has been performed.
  • the apparatus according to the invention enables concurrently phased drawing/texturing frames equipped with closed furnaces to be started conveniently and therefor to produce yarns of better textile quality, improved uniformity, extensibility and dying affinity.
  • FIGS. 3 and 4 are views similar to FIGS. 1 and 2 and show a modified form of apparatus in which similar parts are identified with like reference numerals.
  • the first yarn feeder l l is placed immediately adjacent the tensioning means 2, so that the heating assembly comprising the members 3 10 is located downstream of the yarn feeder l l, but still upstream of the heating member 12.
  • An apparatus for drawing and texturing synthetic thermoplastic yarn by false twisting the yarn wherein the drawing and texturing are performed simultaneously and wherein the apparatus includes means for supplying the synthetic yarn, a heated twist-setting member for setting a twist in the yarn, a heating assembly upstream of the heated twist-setting member, a false twist spindle, a yarn feeder situated downstream of the spindle and means for winding up the resulting textured yarn; the improvement in which said heating assembly comprises:
  • a curved bar positioned and configured to partially surround the heating element
  • heating element comprises a heated metallic cylinder.
  • deflecting elements comprise diabolo-shaped yarn guides.
  • heating element is situated upstream of the yarn feeder which is situated upstream of the heated twist-setting member.
  • heating element is situated between the heated twistsetting member and the yarn feeder which is situated upstream of the heated twist-setting member.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US430791A 1973-01-29 1974-01-04 Apparatus for initiating operation of a combined drawing and texturing machine for yarn Expired - Lifetime US3903682A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7303117A FR2215495B1 (ja) 1973-01-29 1973-01-29

Publications (1)

Publication Number Publication Date
US3903682A true US3903682A (en) 1975-09-09

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Family Applications (1)

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US430791A Expired - Lifetime US3903682A (en) 1973-01-29 1974-01-04 Apparatus for initiating operation of a combined drawing and texturing machine for yarn

Country Status (7)

Country Link
US (1) US3903682A (ja)
JP (1) JPS5218290B2 (ja)
CH (1) CH562340A5 (ja)
DE (1) DE2402109A1 (ja)
FR (1) FR2215495B1 (ja)
GB (1) GB1435029A (ja)
IT (1) IT1002773B (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971200A (en) * 1974-03-06 1976-07-27 Leesona Corporation Process and apparatus for continuous heat setting of carpet yarns
US4185450A (en) * 1976-12-24 1980-01-29 Snia Viscosa Societa' Nazionale Industria Applicazioni Viscosa S.P.A. Process for the texturization of polycapronamide fibres and texturized polycapronamide fibres obtained according to the process
US4332132A (en) * 1979-06-25 1982-06-01 Asa S.A. False-twist apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3504077A1 (de) * 1984-02-25 1985-10-10 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Vorrichtung zum heizen von fadenscharen aus synthetischen faeden

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166822A (en) * 1960-04-26 1965-01-26 English Rose Ltd Method and apparatus for production of bulked yarn
US3443371A (en) * 1968-01-24 1969-05-13 Leesona Corp Textile machine
US3638411A (en) * 1969-12-04 1972-02-01 Teijin Seiki Co Ltd False twist crimping apparatus
US3729916A (en) * 1971-03-30 1973-05-01 Beaunit Corp Method for treating yarn
US3733801A (en) * 1971-07-01 1973-05-22 Fiber Industries Inc Yarn process
US3766726A (en) * 1971-11-24 1973-10-23 R Carroll Yarn guide
US3793817A (en) * 1972-06-12 1974-02-26 Allied Chem Auxiliary yarn start-up wheel and method for draw false twist machines
US3796036A (en) * 1970-11-21 1974-03-12 Scragg & Sons Method of processing yarn

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166822A (en) * 1960-04-26 1965-01-26 English Rose Ltd Method and apparatus for production of bulked yarn
US3443371A (en) * 1968-01-24 1969-05-13 Leesona Corp Textile machine
US3638411A (en) * 1969-12-04 1972-02-01 Teijin Seiki Co Ltd False twist crimping apparatus
US3796036A (en) * 1970-11-21 1974-03-12 Scragg & Sons Method of processing yarn
US3729916A (en) * 1971-03-30 1973-05-01 Beaunit Corp Method for treating yarn
US3733801A (en) * 1971-07-01 1973-05-22 Fiber Industries Inc Yarn process
US3766726A (en) * 1971-11-24 1973-10-23 R Carroll Yarn guide
US3793817A (en) * 1972-06-12 1974-02-26 Allied Chem Auxiliary yarn start-up wheel and method for draw false twist machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971200A (en) * 1974-03-06 1976-07-27 Leesona Corporation Process and apparatus for continuous heat setting of carpet yarns
US4185450A (en) * 1976-12-24 1980-01-29 Snia Viscosa Societa' Nazionale Industria Applicazioni Viscosa S.P.A. Process for the texturization of polycapronamide fibres and texturized polycapronamide fibres obtained according to the process
US4332132A (en) * 1979-06-25 1982-06-01 Asa S.A. False-twist apparatus

Also Published As

Publication number Publication date
GB1435029A (en) 1976-05-12
FR2215495B1 (ja) 1976-04-09
CH562340A5 (ja) 1975-05-30
IT1002773B (it) 1976-05-20
JPS49108312A (ja) 1974-10-15
DE2402109A1 (de) 1974-08-01
JPS5218290B2 (ja) 1977-05-20
FR2215495A1 (ja) 1974-08-23

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AS Assignment

Owner name: IC-ACBF, ZONE INDUSTRIELLE LES AUREATS, ALLEE CHAR

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ASA, BY: DUTILLEUL, CLAUDE (COURT TRUSTEE );REEL/FRAME:004583/0812

Effective date: 19860514

Owner name: IC-ACBF,FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ASA, BY: DUTILLEUL, CLAUDE (COURT TRUSTEE );REEL/FRAME:004583/0812

Effective date: 19860514