US2595044A - Device for drawing off artificial fibers from the spinneret, especially fibers spun from the molten mass - Google Patents

Device for drawing off artificial fibers from the spinneret, especially fibers spun from the molten mass Download PDF

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Publication number
US2595044A
US2595044A US96592A US9659249A US2595044A US 2595044 A US2595044 A US 2595044A US 96592 A US96592 A US 96592A US 9659249 A US9659249 A US 9659249A US 2595044 A US2595044 A US 2595044A
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United States
Prior art keywords
rollers
cooperating
roller
axes
spinneret
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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
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US96592A
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English (en)
Inventor
Zmatlik Josef
Stary Miroslav
Piller Bohumil
Pinkava Jan
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.)
ELITE SDRUZENE TOVARNY PUNCOCH
ZD Y PRE CHEMICKU VYROBU NAROD
Original Assignee
ELITE SDRUZENE TOVARNY PUNCOCH
ZD Y PRE CHEMICKU VYROBU NAROD
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Expired - Lifetime legal-status Critical Current

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    • 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
    • D01D5/08—Melt spinning methods
    • 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
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch

Definitions

  • Fibers which arespunfrom. themolten mass. e. g. polyamide fibers, areusually drawn. off from the spinneret by. means of ametalcylinden, Said cylinder has a. rather great diameter andaconsiderable weight in. order to. cool instantaneously the fiber which is, after'having left .thespinneret, still in a plastic condition.
  • Thefiber. or the. fiber bundle has to. be wound. several times'round the, drawing off cylinder in. order to obtainthe. e sary friction. This. is rather difilcult, to; do at high spinning speeds.
  • the design and. the material of such a high speed. heavy rotatory cylinder. must be chosen very. carefully.
  • the device according to thepresent invention consists of two vertical rows of cylinders, placed under the spinneret ina. mutually staggered position which rows may bev removedfrom each other or tightly approached, all. of. the. said. cylinders rotating with. the same speedandinopposite direction in each. row so that the fibers. may fall freely from the spinneret,.between distancedcylinder rows,.being on. the contrary caught, when the saidcylinder rows. are closely approached, and drawn forcibly in a. wave-like line from the spinneret.
  • the cylindersvof, onerow' may be-provided with an elastic surface of rubber; or. the-like, the cylinders of. the other. row being made of; metal; the friction is then so increased that oneof.
  • the rows may consist only of av single rubber coated cylinder, the other row consisting of; two metal cylinders, having the samev diameter and rotating with the same speed in opposite direction re,- garding the rubber coatedcylignder; The, rubber coated cylinder is pushed between; two metal cylinders according to the-diagram; shown in Figs. 1 and 2 of the accompanyingdrawing;
  • Fig. 1 shows distanced cylinders before the beginning of drawin off spunfiberasaid fibers falling freely through the. gap. between the said cylinders.
  • a known watercooling device (not shown) may. be arranged between the-spinneretand thedrawing off device.
  • the cylinders may be, accordingly shaped as shown in Fig. 3, their central part haying areduced diameter so that the cylinders of both rows are rolling on each other with their borders; only.
  • the cylinders may be arranged a known fiber shifting device for changing the place on which the fiber comes. intocontact with the cylinder in order to prevent thefiber to cut a groove into the cylinder surface.
  • Such changing devices are'commonly. used when-winding yarn on bobbins and it is therefore not necessary to go into details. It is only to be mentioned that this changingdevice may-run very slowly.
  • he descriheddevice is advantageous especially when high spinning speeds'are used and in connection with preceding cooling with water or with another liquid.
  • the winding of the fiber bundle on. the drawing, offcylinder is fully omitted because the device may be-put in action simply by means of a lever (3, Fig. 4), which is acting directly on the tension roller 4, serving for stretching the driving band or belt 5.
  • The-diagramof the, driving arrangement is shown in Fig, ,4 where the shifting. of thecylindersis illustratedby horizontal arrows.
  • the shifting may be naturally arranged in; a.
  • rollers shiftable in a horizontal direction between an operative position in which the distance between the projections of the axes of said rollers on a horizontal plane is-less than the sum of their radii and an inoperative position in which the distance between the projections of the axes of said rollers on a horizon tal plane exceeds the sum of their radii and in which the projection of the axis of said discharge opening on said horizontal plane is be'- ing located between and spaced from the projections of said rollers on said horizontal plane, permitting entering of a molten fiber between said rollers by the force of gravity in inoperative position of said rollers; means for shifting said shiftable rollers to and fro between said operative and inoperative positions; and means for rotating said rollers in opposite directions, whereby when said rollers are in said operative position and rotated, they will exert on the fiber a frictional drag only without compressing it.
  • a device for drawing off artificial molten spun fibers from a spinneret having a discharge opening in its bottom comprising at least two rotatably supported cooperating rollers arranged below the spinneret having parallel axes relatively displaced in the direction of the extension of the fiber, at least one of said rollers being shiftable between an operative position in which the distance between the projections of the axes of said rollers in a horizontal plane is less than the sum of their radii, and an inoperative position in which thedistance between the projections of the axes of said rollers on said horizontal plane exceeds the sum of their radii and in which the projection of the axis of said discharge opening on said horizontal plane is being located between and spaced from the projections of said rollers on said horizontal plane, permitting entering of a molten fiber between said rollers by the force of gravity in inoperative position of said rollers; means for rotating said rollers in opposite directions; at least one roller having at least one rim preventing the cooperating surfaces of said rollers to approach closer than a
  • a device for drawing off artificial molten spun fibers from a spinneret having a discharge opening in its bottom comprising two cooperating vertically aligned columns of rotatably supported rollers arranged below the spinneret having parallel axes, each column displaced vertically with respect to the other column, said columns being so arranged that the cooperating circumferences of adjacent rollers of different columns are permanently at a distance at least slightly exceeding the diameter of the fiber, at least one of said vertical columns shiftable in a horizontal direction between an operative position in which the projection on a horizontal plane of the distances between the axes of each pair of adjacent rollers of different columns is less than the sum of the radii of the respective adjacent rollers and an inoperative position in which the projection on a horizontal plane of the distances between the axes of each pair of adjacent rollers of different columns exceeds the sum of the radii of the respective adjacent rollers and in which the projection of the axis of said discharge opening on said horizontal plane is being located between and spaced from the projections of said rollers
  • a device for drawing on artificial molten spun fibers from a spinneret having a discharge opening in its bottom comprising at least two rotatably supported cooperating rollers arranged below the spinneret at least part of the surface of one roller consisting of a material having a high coefiicient of friction, said rollers having horizontally extending vertically displaced axes spaced so that their cooperating surfaces are permanently at a distance exceeding the diameter of the fiber, at least one of said rollers shiftable in a horizontal direction between an operative position in which the distance between the projections of the axes of said rollers on a horizontal plane is less than the sum of their radii and an inoperative position in which the distance between the projections of the axes of said rollers on a horizontal plane exceeds the sum of their radii and in which the projection of'the axis of said discharge opening on said horizontal plane is being located between and spaced from the projections of said rollers on said horizontal plane, permitting entering of a molten fiber be tween
  • a device for drawing ofi artificial molten spun fibers from a spinneret having a discharge opening in its bottom comprising at least two rotatably supported cooperating rollers arranged below the spinneret at least part of the surface of one roller consisting of rubber, said rollers having horizontally extending vertically displaced axes spaced so that their cooperating surfaces are permanently at a distance exceeding the diameter of the fiber, at least one of said rollers shiftable in a horizontal direction between an operative position in which the distance between the projections of the axes of said rollers on a horizontal plane is less than the sum of their radii and an inoperative position in which the distance between the projections of the axes of said rollers on a horizontal plane exceeds the sum of their radii and in which the projection of the axis of said discharge opening on said horizontal plane is being located between and spaced from the projections of said rollers on said horizontal plane, permitting entering of a molten fiber between said rollers by the force of gravity in inoperative position of said rollers; means
  • each pair of adjacentrollersof different'columns is less than the sum of the-radii of the-respective adjacent rollers andaninoperative positionv in,
  • a device for drawing offartificialnnolten spun fibers from a spinneret-having a discharge opening in its bottom comprising-two cooperating vertically aligned columns of 'rotatably supported rollers arranged below-the spinneret'hav ingparallel axes, each column displaced vertically with respect to-the othercolumn, atileast part of the surface of at least one roller consisting of rubber,-said columns being so arranged that the cooperating;circumferences of adjacent rollers of different columns are permanently at a distance at least slightly exceeding the diameter of the fiber, at least one of said vertical columns shiftable in a horizontal direction between an operative position in which the projection on a horizontal plane of the distances between the axes of each pair of adjacent rollers of different columns is less'than the sum of the radii of the respective adjacent rollers and an inoperative position in which, the projection on a horizontal plane ofthe distances betweenithe axes of each pair ofadjacentrollers of different columns exceeds
  • a devicefor drawing off artificial fibers from the spinneret comprising. at least-two -ro tatably supported cooperating rollers having horizontally extending vertically displaced axes spaced so that their cooperating surfaces are permanently at a-distance exceeding the-diameter of the fiber, at least oneof said rollers shiftable in a horizontal direction between an operative position in which the distance-between the projections of the-axes of said-rollerson-a horizontal plane is less than the sum of their radii and an inoperative position in which the distancebetween the projections of the axes of said rollers on a horizontal plane exceeds the sum of their radii; an idle roller contactingthe surface of one of said cooperating rollers; a unwing belt engaging said other cooperating roller along a portion of its axial'length andsaid i'dle; roller; means for driving said belt; and means for 'tensioning said belt.
  • IL A device for drawing oif' artificial fibers; from the spinneret, comprisingat least two ro tatably supported cooperating rollershavingi horizontally extending vertically di's'placed axesspaced so that their cooperating surfaces are permanently at a distance exceeding the'diam eter of the fiber, at least one of said rollers shift-'- able in a horizontal directionbetweenanopera tive position in which the distance-between'th'e; projections of the axes of said rollers onahorizontal plane is less than the sum of their'radii and an inoperative position in which the distance between the projectionsof the axes of said rollers on a horizontal plane exceeds the sum of-thei-r" radii; means tending to maintain said rollers in said inoperative position; an idleroller contacting the surface of one of saidcooperating rollers; a driving belt engagingsaid other 00- operating roller along a-portion of its axial length: and said idle roller; means for driving said-belt
  • a device for drawing off artificial fibers from the spinneret comprising at least two r0 tatably supported cooperating rollers having horizontally extending vertically displaced axes spaced so that their cooperating surfaces are permanently at a distance exceeding the diameter of the fiber, at least one of said rollers shiftable in a horizontal direction between an operativeposition in which the distance between the projections of the axes of said rollers on a horizontal plane is less than the sum of their radii and an inoperative position in which the distance between the projections of the axes of said rollers on a horizontal plane exceeds the sum of their radii; a shiftably supported tensionin roller; an idle roller contacting the surface of one of said cooperating rollers; a driving belt engaging said tensioning roller, said idle roller and the cooperating roller not contacting said idle roller; means for driving said belt; and means for shifting said tensioning roller.
  • a device for drawing off artificial fibers from the spinneret comprising at least two rotatably supported cooperating rollers having horizontally extending vertically displaced axes spaced so that their cooperating surfaces are permanently at a distance exceeding the diameter of the fiber, at least one of said rollers shiftable in a horizontal direction between an operative position in which the distance between the projections of the axes of said rollers on a horizontal plane is less than the sum of their radii and an inoperative position in which the distance between the projections of the axes of said rollers on a horizontal plane exceeds the sum of their radii; a shiftably supported tensioning roller; an idle roller contacting the surface of one of said cooperating rollers; a driving belt engaging said tensioning roller, said idle roller and the cooperating roller not contacting said idle roller; means for driving said belt; a lever connected to said tensioning roller and adapted to control the shifting thereof.
  • a device for drawing off artificial fibers from the spinneret comprising at least two rotatably supported cooperating rollers having horizontally extending vertically displaced axes spaced so that their cooperating surfaces are permanently at a distance exceeding the diameter of the fiber, at least one of said rollers shiftable in a horizontal direction between an operative position in which the distance between the projections of the axes of said rollers on a horizontal plane is less than the sum of their radii and an inoperative position in which the distance between the projections of the axes of said rollers on a horizontal plane exceeds the sum of their radii; means tending to maintain said rollers in said inoperative position; a shiftably supported tensioning roller; an idle roller contacting the surface of one of said cooperating rollers; a driving belt engaging said tensioning roller, said idle roller and the cooperating roller not contacting said idle roller; means for driving said belt; a lever connected to said tensioning roller and adapted to control the shifting thereof.
  • a device for drawing off artificial fibers from the spinneret comprising at least two rotatably supported cooperating rollers having parallel axes relatively displaced in the direction of the extension of the artificial fiber, at least one of said rollers being shi-ftable; means for rotating said rollers in opposite direction; at least one roller having at least one rim preventing the cooperating surfaces of said rollers to approach closer than a distance exceeding the diameter of the fiber; means tending to maintain said rollers in said inoperative position; an idle roller contacting the surface of one of said cooperating rollers; a driving belt engaging said other cooperating roller along a portion of itsaxial length and said idle roller; means for driving said belt; and means for tensioning said belt whereby said cooperating rollers will assume their operative position when said belt is tensioned and their inoperative position when said belt is re-' laxed.
  • a device for drawing off artificial fibers from the spinneret comprising at least two rotatably supported cooperating rollers having parallel axes relatively displaced in the direction of the extension of the artificial fiber, at least one of said rollers being shiftable; at least one of said rollers having at least one rim preventing the cooperating surfaces of said rollers to approach closer than a distance exceeding the diameter of the fiber; a shiftably supported tensioning roller; an idle roller contacting the surface of one of said cooperating rollers; a driving belt engaging said tensioning roller, said idle roller and the cooperating roller not contacting said idle roller; means for driving said belt; and means for shifting said tensioning roller.
  • a device for drawing off artificial fibers from the spinneret comprising at least two rotatably supported cooperating rollers having parallel axes relatively displaced in the direction of the extension of the artificial fiber, at least one of said rollers being shiftable; at least one of said rollers having at least one rim preventing the cooperating surfaces of said rollers to approach closer than a distance exceeding the diameter of the fiber; means tending to maintain said rollers in non-contacting position; a shiftably supported tensioning roller; an idle roller contacting the surface of one of said cooperating rollers; a driving belt engaging said tensioning roller, said idle roller and the cooperating roller not contacting said idle roller;

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US96592A 1948-06-01 1949-06-01 Device for drawing off artificial fibers from the spinneret, especially fibers spun from the molten mass Expired - Lifetime US2595044A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS274192X 1948-06-01

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US2595044A true US2595044A (en) 1952-04-29

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US (1) US2595044A (xx)
BE (1) BE489371A (xx)
CH (1) CH274192A (xx)
FR (1) FR998003A (xx)
NL (1) NL146754C (xx)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990236A (en) * 1957-03-25 1961-06-27 Ici Ltd Spinning process
US3808789A (en) * 1973-01-26 1974-05-07 Owens Corning Fiberglass Corp Apparatus for collection of linear material

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB395251A (en) * 1931-12-15 1933-07-13 Bemberg Ag An improved process for making skins from cellulose solutions
US2389655A (en) * 1941-10-13 1945-11-27 Du Pont Polyamide articles
US2418974A (en) * 1944-08-24 1947-04-15 Nelson R Henry Method and apparatus for forming flexible tubes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB395251A (en) * 1931-12-15 1933-07-13 Bemberg Ag An improved process for making skins from cellulose solutions
US2389655A (en) * 1941-10-13 1945-11-27 Du Pont Polyamide articles
US2418974A (en) * 1944-08-24 1947-04-15 Nelson R Henry Method and apparatus for forming flexible tubes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990236A (en) * 1957-03-25 1961-06-27 Ici Ltd Spinning process
US3808789A (en) * 1973-01-26 1974-05-07 Owens Corning Fiberglass Corp Apparatus for collection of linear material

Also Published As

Publication number Publication date
NL146754C (xx)
CH274192A (de) 1951-03-31
BE489371A (xx)
FR998003A (fr) 1952-01-14

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