US2820876A - Yarn heating apparatus - Google Patents

Yarn heating apparatus Download PDF

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Publication number
US2820876A
US2820876A US549494A US54949455A US2820876A US 2820876 A US2820876 A US 2820876A US 549494 A US549494 A US 549494A US 54949455 A US54949455 A US 54949455A US 2820876 A US2820876 A US 2820876A
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US
United States
Prior art keywords
yarn
heating
bar
yarns
heater
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 - Lifetime
Application number
US549494A
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English (en)
Inventor
Pieter Van Dijk
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.)
Akzona Inc
Original Assignee
American Enka Corp
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 American Enka Corp filed Critical American Enka Corp
Application granted granted Critical
Publication of US2820876A publication Critical patent/US2820876A/en
Anticipated expiration legal-status Critical
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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/003—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass by contact with at least one stationary surface, e.g. a plate
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/02—Heat treatment
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/04—Supporting filaments or the like during their treatment
    • D01D10/0436—Supporting filaments or the like during their treatment while in continuous movement
    • D01D10/0463—Supporting filaments or the like during their treatment while in continuous movement the filaments being maintained parallel
    • 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

Definitions

  • This invention relates to the heat treatment of threads, yarns or the like and more particularly to a novel method and apparatus for the production of heat treated yarns of high quality and uniformity.
  • angle of inclination as used herein referring to the angle defined between a plane normal to the longitudinal axis of the heating surface and the yarn.
  • Figure 1 is a view in elevation of a bar heater constructed in accordance with the teachings of the present invention and showing a single running yarn in a position thereon to be heated thereby;
  • Figure 2 is a view in elevation of a heater bar of the present invention modified to accommodate a plurality of running yarns for simultaneous heating thereby.
  • the numeral 1 designates a round bar having a smooth polished surface and an internal resistance through which it may be electrically heated to any desired degree.
  • the bar includes a substantial straight portion but is bent at its ends to form integral thread guides 2 and 3.
  • the entire structure is supported from a block 5 of insulating material by a portion of the heater bar stock. Electric current to accomplish the necessary heating is supplied through leads U t d. sate 0 2 6 and 7.
  • the numeral 4 desig nates the yarn to be heated. This yarn envelopes the bar 1 for about 360 so that it enters and leaves the heating zone in the same line.
  • the bar 1 is straight in that portion of its path where it is in contact with the yarn. It is possible, however, to curve the heater bars so long as the curvature does not oppose the formation of a helix by the yarn at an inclination not less than about 76. While no such housing is shown it may be desirable to surround the heater of Figure 1 with a housing in order to maintain stable heating conditions against the adverse effects of cooling currents of air.
  • the bar 1 of Figure l with the resistance therein is of round cross section but other shapes may be used and it is even possible to replace the resistance element with a hollow tube and to circulate therethrough a liquid heat exchange medium.
  • the diameter of the heating body such as the bar 1 is chosen to bring about the desired heating elfect bearing in mind the chemical constituency of the thread, its denier and the purpose for which heat is applied.
  • the dimensions of the body such as the bar 1 it is known from experience that yarns may be pulled over a cylinder with tension of less than 6 g./ den. where the yarn encircles the cylinder in a direction perpendicular to the axis of a cylinder over an are not exceeding 15.
  • the threads are not pulled in a direction perpendicular to the axis of a cylinder it appears that the arc may be essentially higher before the permissible pulling force is exceeded.
  • the diameter of the cylinder should be about 89 cm. with a yarn contact therewith 180 cm. in length. Under these circumstances the encircling angle is 45. With an angle of inclination of 85 and the same length of contact a cylinder of 58 cm. diameter is required, the encircling angle being 172. With an angle of inclination of 88 and 89 the diameter of the tubes or bars to be used are .9 and .23 cm. respectively. The encircling angles are 430 and 860 respectively. The data given above are for the purpose of illustrating that with large angles of inclination it is not always necessary to apply the maximum permissible encircling or wrap.
  • FIG. 1 While the arrangement shown in Figure 1 is entirely satisfactory for the handling of a single strand it is recognized that, from the point of view of economical use of heat, it is desirable to handle a plurality of threads at the same time.
  • An arrangement for accomplishing this is shown in Figure 2.
  • the heater is a tubular bar or body 3 provided with heat exchange fluid supply lines 9 and it).
  • the threads or yarns 16 run from top to bottom as depicted in Figure 2.
  • a similar comb 14 is located below the lower end 12 of the heating bar 8. Pins are arranged in groups of 6 on opposite sides of the bar 8.
  • pins 15a there is an upper group of pins 15a on the side facing the viewer of Figure 2.
  • group 15b on the side away from the viewer of Figure 2 in the middle of the bar 8 and a final group again facing the viewer near the bottom 12 of the bar 8.
  • These pins exceed by one the number of yarns in the warp. They maintain the components of the warp in mutually spaced relation in their helical wrap around the heating bar 8.
  • Each "a wrap'o'fexaetly 3'60"'s'o that the warp running to the heater is parallel and aligned with the warp leaving the heater. lit isrecognized that the heater of either .
  • Figures l'or 2 maybe used as a part of'a continuous spinning machine for the production of yarns.
  • lApparatus for h'eatihg'a plurality of nmning yarns I comprising a pair of bombs disposed in parallel but i' assum laterally offset relation, an elongated body extending across are space Between combs at an angle l'of inclination to the plane of the combs not substantially below 70, means for heating said body and a plurality of groups, of pins projecting radially from said body for guiding the plurality dfrunni'ug yarns in parallel but helical paths around said "body, each group comprising a plurality of spaced pins aligned with the longiutdinal axis :of said body and each group being disposed cireurnferenti'ally aro'im'd said "body with respect 'to the "next adjacent group.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US549494A 1954-12-14 1955-11-28 Yarn heating apparatus Expired - Lifetime US2820876A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL779800X 1954-12-14

Publications (1)

Publication Number Publication Date
US2820876A true US2820876A (en) 1958-01-21

Family

ID=19830068

Family Applications (1)

Application Number Title Priority Date Filing Date
US549494A Expired - Lifetime US2820876A (en) 1954-12-14 1955-11-28 Yarn heating apparatus

Country Status (3)

Country Link
US (1) US2820876A (enrdf_load_stackoverflow)
BE (1) BE538456A (enrdf_load_stackoverflow)
GB (1) GB779800A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3238592A (en) * 1964-04-15 1966-03-08 Chemcell 1963 Ltd Device for heating and stretching yarn
US3705487A (en) * 1970-06-10 1972-12-12 Turbo Machine Co False-twisting apparatus
US4851643A (en) * 1987-07-09 1989-07-25 Milliken Research Corporation Draw block
EP0744481A1 (en) * 1995-05-23 1996-11-27 Rieter Scragg Limited Textile machine
US7170035B2 (en) * 2004-08-04 2007-01-30 Hottboxx Llc Heated construction box

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1074141A (en) * 1962-12-03 1967-06-28 Klinger Mfg Co Ltd Improvements in or relating to apparatus for and methods of false-twist-crimping of yarn

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1324051A (en) * 1919-12-09 ilussa
US2345032A (en) * 1943-06-17 1944-03-28 Us Rubber Co Drier for yarns or cords
US2622182A (en) * 1951-06-23 1952-12-16 American Cyanamid Co Apparatus for drying continuous filament yarn and the like

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1324051A (en) * 1919-12-09 ilussa
US2345032A (en) * 1943-06-17 1944-03-28 Us Rubber Co Drier for yarns or cords
US2622182A (en) * 1951-06-23 1952-12-16 American Cyanamid Co Apparatus for drying continuous filament yarn and the like

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3238592A (en) * 1964-04-15 1966-03-08 Chemcell 1963 Ltd Device for heating and stretching yarn
US3705487A (en) * 1970-06-10 1972-12-12 Turbo Machine Co False-twisting apparatus
US4851643A (en) * 1987-07-09 1989-07-25 Milliken Research Corporation Draw block
EP0744481A1 (en) * 1995-05-23 1996-11-27 Rieter Scragg Limited Textile machine
US5671519A (en) * 1995-05-23 1997-09-30 Rieter Scragg Limited Yarn texturing machine with cooling arrangement for heated false-twisted yarn
US7170035B2 (en) * 2004-08-04 2007-01-30 Hottboxx Llc Heated construction box

Also Published As

Publication number Publication date
BE538456A (enrdf_load_stackoverflow)
GB779800A (en) 1957-07-24

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