US2869312A - Yarn heating apparatus - Google Patents

Yarn heating apparatus Download PDF

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Publication number
US2869312A
US2869312A US562337A US56233756A US2869312A US 2869312 A US2869312 A US 2869312A US 562337 A US562337 A US 562337A US 56233756 A US56233756 A US 56233756A US 2869312 A US2869312 A US 2869312A
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United States
Prior art keywords
yarn
heating
diameter
elongated body
opening
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
US562337A
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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
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Filing date
Publication date
Application filed by American Enka Corp filed Critical American Enka Corp
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Publication of US2869312A publication Critical patent/US2869312A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/001—Drying and oxidising yarns, ribbons or the like
    • 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
    • D01D10/0481—Supporting filaments or the like during their treatment while in continuous movement the filaments passing through a tube
    • 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
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/22—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool
    • 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
    • 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
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/52—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment combined with mechanical treatment
    • D06M13/53—Cooling; Steaming or heating, e.g. in fluidised beds; with molten metals

Definitions

  • thermoplastic yarns or threads that involves passing the same in contact with a heated surface.
  • the yarns are moved in a more or less helical or otherwise curved path in contact with 'a smooth heated surface so that heat exchange by conduction can occur without substantial drag being imparted to the yarn.
  • This arrangement has proved to be very satisfactory and to constitute a substantial improvement over prior arrangements in which the yarn either contacted so much surface that the resulting friction restricted its movement or else was exposed to a radiation or convection heating which was inadequate by reason of lack of uniformity.
  • the heaters to be described hereinbelow are of particular utility in the production of continuously curled yarns from thermoplastic materials by means of a false-twisting apparatus wherein the yarn is heated during the twisting operation and cooled prior to untwisting, as fully explained in said copending application, Serial No. 513,442.
  • Figure l is a schematic view partially in elevation and partially in section of a tubular heating arrangement for heating running thermoplastic yarns or threads in accordance with the principles of the present invention
  • Figure 2 is a view similar to Figure 1 but showing a heating path defined by a helical heating rod with the yarn passing through its core;
  • Figure 3 is a view similar to- Figure 1 but showing a heating path which is defined in C-section with the thread running in the included longitudinal opening;
  • Figure 4 is a view in section taken on the line 4-4 of Figure 3;
  • Figure 5 is a view similar to Figure 3 but showing a slotted heating element in which the slot spirals in the form of a helix around the heating element;
  • Figure 6 is a diagrammatic View, in elevation, illustrating a continuous curling apparatus such as shown in said copending application Serial No. 513,442, as modified in accordance with one embodiment of the present in vention.
  • a yarn or thread 10 is being moved downwardly from a pair of delivery rollers 11 to a pair of takeup rollers 12.
  • a hollow elongated body or tube 13 which is supported by arms 14 and 15 from a block of insulating material 16 which can be supported from a convenient part of the machine by means not shown.
  • Electrical conduits 17 and 18 provide for an electric heating current to be applied to the tube 13, it being understood that the tube 13 is impregnated with suitable evenly distributed resistance elements for heating its inner surface. T current is led to these resistance elements from wires 17 and 18 through the arms 14 and 15.
  • the inner surface of the tube 13 is smooth and polished.
  • the size of the aperture in the tube 13 is so nearly the same as the diameter of the yarn it that small, low amplitude oscillations of the yarn or thread incident to its running between rollers fl and 12 will cause it to contact the inner wall of the tube 13 in very nearly all of its radii. Similarly nearly all of the surface of each length of yarn or thread is caused to contact some portion of a heating surface and the result is a considerable conservation of heat and improvement in the uniformity of heat application to the yarn or thread being treated.
  • helix 19 which extends between the arms 14 and 15 in lieu of the tube 13.
  • the helix 19 is in the form of a coil of resilient, smooth surfaced material having electric resistance elements embedded therein.
  • ihe helix has a central core which is coaxial with the yarn path between the delivery and withdrawal rollers 1.1 and 12 and the yarn in passing through this core, comes in contact with the heated surface of the coil or helix 19.
  • the diameter of the core of the helix i9 is so little in excess of the diameter of the yarn or thread iii that small vibrations of the yarn will result in an average uniform contact between the yarn and heater with resulting improvement in thermal efficiency and uniformity of yarn treatment.
  • the upper bracket 14 is mounted on a slidable sleeve 2% which is axially movable on resistance 16 and is held in any position of adjustment by set screw 2]; whereby the tension on the coil 19 may be varied and the elfective length thereof adjusted.
  • the sleeve 29 is moved upwardly, the helix angle of the coil 19 will be enlarged and its core will be reduced in size to accommodate a yarn of smaller denier.
  • the helix angle of the coil 19 will be reduced and the core diameter increased to accommodate a thread of larger denier.
  • Figure 3 the illustrated arrangement is substantially identical to that shown in Figure 1 except that the tube 13 is replaced by a G-section element 22 which has a smooth internal surface and which is heated by resistance elements embedded therein as previously described. Because of the fact that the C member 22 does not completely surround the yarn m it is necessary to provide holding elements at the top and bottom of the yarn path through the heater. These elements are designated by reference numerals 23 and 24. The holding pieces are supported from the insulation bracket 16.
  • Figure 4 The general relation of the parts in Figure 3 can be appreciated by reference to Figure 4 which virtually amounts to a plan of the apparatus from the viewpoint of the line d-4.
  • the form of invention shown in Figure 5 is substantially identical to that shown in Figure 3 except that instead of having a C member with a straight radial groove, the heating element is in the form of a hollow elongated body or tube having at any given point along its length a radial groove or slot, the slot itself, however, following a spiral or helical path from the top to the bottom of the heater.
  • the heater bears the reference numeral 25 and the slot thereof is designated as 26.
  • the conductors l7 and 18 bear polarity designations in Figures 3 and 5, it is apparent that either A. C. or D. C. heating may be employed.
  • the diameters of the cores of heaters of the type herein described do not exceed 1
  • the grooves in the heaters and 25 under such circumstances do not exceed 0.2 mm. in width and a width of 0.15 is often used.
  • Yarn fit? is withdrawn from supply package 27 through suitable thread guides by feed rollers 28, From the feed rollers, the yarn passes through tensioning rollers 39, 31 and into the heater This particular heater is shown for purposes of illustration only, it being obvious that either of heaters l9, or 25 also could be used in this curling apparatus.
  • the yarn From the heater 13 the yarn passes into and through a false twisting device 32 which is rotated by belt 33 and drive motor The device 32 imparts a false twist to yarn iii, which twist subsequently is removed prior to take-up.
  • the false twisted yarn passes through a cooling zone and onto withdrawal godet 35, at which point substantially all of the twist is removed. Yarn leaving godet 35 is passed over guide roller 36 and collected on yarn takeup means 37.
  • thermostat may be provided for controlling the amount ofheat to which the yarn is subjected.
  • Apparatus for heating running lengths of yarn comprising a coil of resilient material having a longitudinal opening presenting a smooth inner surface through which yarn is passed, said inner surface extending for a major portion of the length of said coil and completely enclosing yarn passed therethrough, the diameter of said opening being not substantially greater than the diameter of the yarn to be heated, means for heating said coil, and means for passing yarn longitudinally through said opening with substantially all portions of said yarn contacting said inner surface.
  • thermoplastic yarn curling apparatus including a twisting device, the improvement comprising an elongated body having a longitudinal opening presenting a smooth inner surface, the diameter of said Opening being not substantially greater than the diameter of the yarn to be curled, means for heating said elongated body, and means for passing thermoplastic yarn longitudinally through said opening in contact with substantially all portions of said inner surface while imparting twist and vibration thereto with said twisting device.
  • Apparatus for heating running lengths of yarn comprising an elongated body having a longitudinal opening presenting a smooth inner surface through which yarn is passed, said inner surface extending for a major portion of the length of said elongated body and completely enclosing yarn passed therethrough, the diameter of said opening beingnot substantially greater than the diameter of the yarn to be heated, means for heating said elongated body, means for passing yarn longitudinally through said opening in contact with substantially all portions of said inner surface, and means for readily adjusting the effective length of said elongated body.
  • Apparatus for heating running lengths of yarn comprising an elongated body having a longitudinal opening presenting a smooth inner surface through which yarn is passed, said inner surface extending for a major portion of the length of said elongated body and completely enclosing yarn passed therethrough, the diameter of said opening being not substantially greater than the diameter of the yarn to be heated, means for heating said elongated body, means for passing yarn longitudinally through said opening in contact with substantially all portions of said inner surface, and means for adjusting the diameter of the longitudinal opening in said clongated body.
  • Apparatus for heating running lengths of yarn comprising an elongated body having a longitudinal opening presenting a smooth inner surface through which yarn is passed, said inner surface extending for a major portion of the length of said elongated body and completely on closing yarn passed therethrough, the diameter of said opening being not substantially greater than the diameter of the yarn to be heated, means for heating said clongated body, means for passing yarn longitudinally through said opening in contact with substantially all portions of said inner surface, and means for adjusting the diameter of said longitudinal opening in response to change in the effective length of said elongated body.
  • thermoplastic yarn curling apparatus including a twisting device
  • the improvement comprising an elongated body having a longitudinal opening presenting a smooth inner surface and a radial groove, said radial groove communicating with said opening and affording access to the smooth inner surface for threading-up purposes, the diameter of said opening being not substantially greater than the diameter of yarn to be curled and the width of said groove being less than the diameter of said opening, said inner surface extending continuously for the length of said elongated body and at least substantially enclosing yarn passed therethrough, means for heating said elongated body, and means for passing thermoplastic yarn longitudinally through said opening in contact with substantially all portions of said inner surface while imparting twist and vibration thereto with said twisting device.
  • Apparatus for heating running lengths of yarn comprising an elongated body having a longitudinal opening presenting a smooth inner surface through which yarn is passed and a radial groove spiraling in the form of a helix around said elongated body, said radial groove communicating with said opening and affording access to the smooth inner surface for threading-up yarn, the diameter of said opening being not substantially greater than the diameter of the yarn to be heated and the width of said groove being less than the diameter of said opening, said inner surface extending continuously for the length of said elongated body and at least substantially enclosing yarn passed therethrough, means for heating said elongated body, and means for passing yarn longitudinally through said opening in contact with substantially all portions of said inner surface.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US562337A 1955-02-11 1956-01-30 Yarn heating apparatus Expired - Lifetime US2869312A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL341265X 1955-02-11

Publications (1)

Publication Number Publication Date
US2869312A true US2869312A (en) 1959-01-20

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ID=19784711

Family Applications (1)

Application Number Title Priority Date Filing Date
US562337A Expired - Lifetime US2869312A (en) 1955-02-11 1956-01-30 Yarn heating apparatus

Country Status (6)

Country Link
US (1) US2869312A (nl)
BE (1) BE544456A (nl)
CH (2) CH341265A (nl)
DE (1) DE1149133B (nl)
FR (2) FR1146740A (nl)
NL (2) NL85163C (nl)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990670A (en) * 1957-03-07 1961-07-04 North American Rayon Corp Yarn crimping and texturing apparatus
US2993260A (en) * 1958-02-20 1961-07-25 American Enka Corp Differentially heated draw pin
US2998693A (en) * 1958-04-01 1961-09-05 American Enka Corp Yarn curling apparatus
US3050819A (en) * 1958-06-03 1962-08-28 Celanese Corp Manufacture of bulked fiber
US3073000A (en) * 1959-04-07 1963-01-15 American Enka Corp Apparatus for treating thread
US3077724A (en) * 1957-09-09 1963-02-19 Leesona Corp Apparatus for processing yarns
US3117361A (en) * 1960-02-11 1964-01-14 Chavanoz Moulinage Retorderie Yarn heat treatment apparatus
US3153892A (en) * 1961-12-22 1964-10-27 Billion & Cie Twisting machines executing a false twist
US3382656A (en) * 1966-01-03 1968-05-14 Chavanoz Moulinage Retorderie False-twist frames and method for texturing synthetic filaments
US3492389A (en) * 1968-04-26 1970-01-27 Avisun Corp Technique for producing synthetic bulk yarns
US3666008A (en) * 1969-04-30 1972-05-30 Socitex Heating elements for heat-treating threads
US3732395A (en) * 1971-06-22 1973-05-08 Du Pont Yarn heater
US3747227A (en) * 1970-11-12 1973-07-24 Akzona Inc Thread-applying device
US3804158A (en) * 1973-08-22 1974-04-16 Gte Sylvania Inc Rapid warmup furnace for processing electron discharge device cathodes
CN108505167A (zh) * 2018-04-20 2018-09-07 海宁昌顺化纤有限公司 一种dty加工用加弹机

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US923425A (en) * 1907-03-22 1909-06-01 Gustave Gin Device for singeing threads.
US2204603A (en) * 1937-09-07 1940-06-18 Ind Rayon Corp Apparatus for drying thread or the like
US2345032A (en) * 1943-06-17 1944-03-28 Us Rubber Co Drier for yarns or cords
US2440159A (en) * 1944-02-26 1948-04-20 American Viscose Corp Apparatus for drying thread by conduction
US2462607A (en) * 1945-03-01 1949-02-22 Donald W Browne Heating element
US2520532A (en) * 1942-07-04 1950-08-29 Pye Ltd Electrically heated oven
US2673385A (en) * 1948-03-18 1954-03-30 Dan River Mills Inc Apparatus for tensioning and drying a wet thread
US2717302A (en) * 1952-05-31 1955-09-06 Fletcher Works Inc Heaters for yarn
US2761272A (en) * 1953-06-19 1956-09-04 Chavanoz Moulinage Retorderie Apparatus for producing curled yarn
US2793277A (en) * 1956-03-30 1957-05-21 Sylvania Electric Prod Textile processing apparatus
US2803105A (en) * 1954-01-04 1957-08-20 Universal Winding Co Apparatus for processing textile yarns

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE201724C (nl) *
CH100155A (de) * 1922-04-08 1923-07-16 Brodbeck Eugen Wilhelm Vorrichtung zum Sengen von Garnen und Zwirnen aller Art vermittelst elektrischen Stromes.
BE505541A (nl) * 1950-09-01
BE506735A (nl) * 1951-10-16

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US923425A (en) * 1907-03-22 1909-06-01 Gustave Gin Device for singeing threads.
US2204603A (en) * 1937-09-07 1940-06-18 Ind Rayon Corp Apparatus for drying thread or the like
US2520532A (en) * 1942-07-04 1950-08-29 Pye Ltd Electrically heated oven
US2345032A (en) * 1943-06-17 1944-03-28 Us Rubber Co Drier for yarns or cords
US2440159A (en) * 1944-02-26 1948-04-20 American Viscose Corp Apparatus for drying thread by conduction
US2462607A (en) * 1945-03-01 1949-02-22 Donald W Browne Heating element
US2673385A (en) * 1948-03-18 1954-03-30 Dan River Mills Inc Apparatus for tensioning and drying a wet thread
US2717302A (en) * 1952-05-31 1955-09-06 Fletcher Works Inc Heaters for yarn
US2761272A (en) * 1953-06-19 1956-09-04 Chavanoz Moulinage Retorderie Apparatus for producing curled yarn
US2803105A (en) * 1954-01-04 1957-08-20 Universal Winding Co Apparatus for processing textile yarns
US2793277A (en) * 1956-03-30 1957-05-21 Sylvania Electric Prod Textile processing apparatus

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990670A (en) * 1957-03-07 1961-07-04 North American Rayon Corp Yarn crimping and texturing apparatus
US3077724A (en) * 1957-09-09 1963-02-19 Leesona Corp Apparatus for processing yarns
US2993260A (en) * 1958-02-20 1961-07-25 American Enka Corp Differentially heated draw pin
US2998693A (en) * 1958-04-01 1961-09-05 American Enka Corp Yarn curling apparatus
US3050819A (en) * 1958-06-03 1962-08-28 Celanese Corp Manufacture of bulked fiber
US3073000A (en) * 1959-04-07 1963-01-15 American Enka Corp Apparatus for treating thread
US3117361A (en) * 1960-02-11 1964-01-14 Chavanoz Moulinage Retorderie Yarn heat treatment apparatus
US3153892A (en) * 1961-12-22 1964-10-27 Billion & Cie Twisting machines executing a false twist
US3382656A (en) * 1966-01-03 1968-05-14 Chavanoz Moulinage Retorderie False-twist frames and method for texturing synthetic filaments
US3492389A (en) * 1968-04-26 1970-01-27 Avisun Corp Technique for producing synthetic bulk yarns
US3666008A (en) * 1969-04-30 1972-05-30 Socitex Heating elements for heat-treating threads
US3747227A (en) * 1970-11-12 1973-07-24 Akzona Inc Thread-applying device
US3732395A (en) * 1971-06-22 1973-05-08 Du Pont Yarn heater
US3804158A (en) * 1973-08-22 1974-04-16 Gte Sylvania Inc Rapid warmup furnace for processing electron discharge device cathodes
CN108505167A (zh) * 2018-04-20 2018-09-07 海宁昌顺化纤有限公司 一种dty加工用加弹机
CN108505167B (zh) * 2018-04-20 2023-08-11 浙江帛泰新材料有限公司 一种dty加工用加弹机

Also Published As

Publication number Publication date
BE544456A (nl) 1956-02-15
FR74949E (fr) 1961-03-03
DE1149133B (de) 1963-05-22
NL86889C (nl) 1957-11-15
NL85163C (nl) 1957-05-15
CH347937A (de) 1960-07-31
FR1146740A (fr) 1957-11-14
CH341265A (de) 1959-09-30

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