EP0941374B1 - Machine a filer et procede de conversion associe - Google Patents

Machine a filer et procede de conversion associe Download PDF

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Publication number
EP0941374B1
EP0941374B1 EP97951492A EP97951492A EP0941374B1 EP 0941374 B1 EP0941374 B1 EP 0941374B1 EP 97951492 A EP97951492 A EP 97951492A EP 97951492 A EP97951492 A EP 97951492A EP 0941374 B1 EP0941374 B1 EP 0941374B1
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EP
European Patent Office
Prior art keywords
multifilament yarns
assembly
assemblies
roll
windup
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EP97951492A
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German (de)
English (en)
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EP0941374A1 (fr
Inventor
Stephen Walter Marlow
Malcolm George Staveley
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EIDP Inc
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EI Du Pont de Nemours and Co
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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
    • D01D13/00—Complete machines for producing artificial threads
    • D01D13/02—Elements of machines in combination
    • 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
    • D01D5/12—Stretch-spinning methods
    • D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides

Definitions

  • the present invention relates to the manufacture of fully drawn continuous multifilament nylon yarns and to a process and spinning machine used for the manufacture of these yarns and more particularly to a conversion process used to provide such a yarn spinning machine.
  • Makers of continuous multifilament nylon yarns sell their product into apparel manufacturing markets where a mix of textured and untextured yarn is consumed. Untextured yarns are also called flat or fully drawn yarn.
  • textured yarn is prepared from a feed yarn, a partially oriented yarn (POY), by draw-twisting and heat setting.
  • POY partially drawn or fully oriented yarn
  • FOY fully drawn or fully oriented yarn
  • the terms POY and FOY generally distinguish nylon yarns having an elongation to break of >60% and ⁇ 60% respectively; see "LOY MOY POY HOY FOY” by H. Treptow, Man-Made Fiber Year Book (CTI) 1986, page 6.
  • the makers of multifilament nylon yarns usually prepare both POY and FOY for various end uses.
  • the spinning machine asset investment by each maker usually reflects the relative fraction of POY to FOY consumed by the apparel market into which the maker sells product.
  • market demands shift over time as fashion trends may dictate a changing requirement for POY versus FOY consumed in the market.
  • a fixed machine asset may present certain liabilities. While recognized as a long standing dilemma to the makers of POY and FOY nylon yarns, the ability to shift a POY spinning machine asset to a FOY spinning asset has not been addressed in the literature.
  • the present invention deals with this situation where a maker of nylon multifilament yarns must respond to a drop in the demand for textured apparel yarns (POY) and a corresponding growing requirement for fully drawn yarn (FOY) consumed in the market.
  • POY textured apparel yarns
  • FOY fully drawn yarn
  • FIG. 1 A prior art godetless POY machine is shown in Figure 1. Such a prior art machine is readily converted to a FOY machine via the process of our invention. Our incentive to make this conversion resulted largely from space restrictions, both vertical and horizontal, imposed by traditional POY machine design. We have found productivity and investment criteria impose stringent design standards on facilities of POY machines. Often the yarn winding assemblies are less than 300 mm apart (on average). Introducing a typical prior art feed and draw roll assembly to the midsection of closely spaced POY machines would result in undue complexity and be expensive. Moving the winder assemblies father apart to accommodate prior art feed and draw roll mechanisms and a yarn relax means is not a simple and economical option and would inhibit a readily reversible conversion of machines.
  • the invention relates to a fully oriented yarn spinning machine for making a first and second plurality of fully oriented multifilament yarns, comprising: at least a first spinning assembly having a spin pack containing a spinneret plate for providing a plurality of filaments; a quench chimney for receiving and cooling the filaments; a finish applicator and convergence guide for receiving the filaments from the spinneret plate, for applying finish to the filaments, and for converging the filaments into a first and a second plurality of multifilament yarns; a first and a second alignment guide for receiving the first and second plurality of the multifilament yarns from the finish applicator and convergence guide; a first and a second stepped roll assembly for receiving the first and the second plurality of the multifilament yarns from the first and the second alignment guides, respectively, and for drawing the multifilament yarns to increase their length by a fixed amount; a steam relax unit between the first and the second unheated rotatable stepped feed and draw roll
  • the fully oriented yarn spinning machine may optionally have an exit guide for maintaining the separation of the multifilament yarns within the steam relax unit and for directing the first and second plurality of the multifilament yarns.
  • the invention further relates to a yarn spinning machine conversion process for converting a partially oriented yarn spinning machine to a fully oriented yarn spinning machine, the partially oriented yarn spinning machine having a first spinning assembly in a confined space between adjacent spinning assemblies, the process comprising: relocating and/or replacing a first and a second alignment guide for receiving a first and a second plurality of multifilament yarns; mounting in the confined space a first and a second unheated rotatable stepped feed and draw roll assembly for receiving the first and the second plurality of the multifilament yarns from the first and the second alignment guides, respectively, and for drawing the multifilament yarns to increase their length by a fixed amount; installing in the confined space a steam relax unit between the first and the second unheated rotatable stepped feed and draw roll assemblies, the steam relax unit for receiving the multifilament yarns from the unheated rotatable stepped feed and draw roll assemblies and for applying steam to the multifilament yarns to stabilize the multifilament yarn
  • the conversion process includes adding an exit guide for maintaining the separation of the multifilament yarns within the steam relax unit.
  • the invention is a fully oriented yarn (FOY) spinning machine and a yarn spinning machine conversion process for converting a partially oriented yarn (POY) spinning machine to the fully oriented yarn (FOY) spinning machine.
  • the FOY spinning machine is for making a first and a second plurality of fully oriented multifilament yarns.
  • the fully oriented yarn spinning machine comprises at least a first spinning assembly, but preferably comprises a plurality of substantially similar spinning assemblies in a row.
  • Figure 2a depicts the first spinning assembly between a second spinning assembly and a third spinning assembly.
  • the first, and preferably each, spinning assembly of Figure 2a has a spin pack (22) fed with molten polymer from polymer manifold (20), a quench chimney (25), a finish applicator and convergence guide (40), a first and a second alignment guide (50), a first and a second stepped roll assembly (90), a steam relax unit (100), an exit guide (116), a first and a second pre wind-up guide (60), and a first and a second windup assembly, not shown in Figure 2a, but illustrated positionally by the location of multiple yarn packages (70) wound on a spindle (72).
  • the spin pack (22) contains a spinneret plate for providing a plurality of filaments (30).
  • the quench chimney (25) is for receiving and cooling the filaments (30).
  • the finish applicator and convergence guide (40) is for receiving the filaments (30) from the spinneret plate, for applying finish to the filaments, and for converging the filaments into a first and a second plurality of multifilament yarns (80). There can therefore be 3, 4, 6, 8 or 12 yarns, for example, fed to one alignment guide (50).
  • the first and the second alignment guides (50) are for receiving the first and the second plurality of the multifilament yarns (80) from the finish applicator and convergence guide (40) and for spacing the plurality of multifilament yarns prior to contacting the following roll surfaces.
  • the first and a second stepped roll assemblies (90) shown in Figure 2a are for receiving the first and the second plurality of the multifilament yarns (80) from the first and the second alignment guides (50), respectively, and for drawing the multifilament yarns to increase their length by a fixed amount.
  • the first and the second unheated rotatable stepped feed and draw roll assemblies comprise a first feed roll (94b), a second feed roll (94a), a first draw roll (92a) and a second draw roll (92b).
  • the first feed roll (94b) and second feed rolls (94a) have first diameters (95) and the first and second draw rolls have second diameters (91) greater than the first diameters (95).
  • the first diameter (95) and the second diameter (91) are selected to provide a fixed draw ratio of the multifilament yarns.
  • the first and second unheated rotatable stepped feed and draw roll assemblies are positioned vertically between each of the alignment guides (50) and the pre wind-up yarn guides (60).
  • the first feed rolls (94b) and the first draw rolls (92a) are positioned higher than the second draw rolls (92b).
  • the typical vertical distance between the alignment guide (50) and the pre wind-up guides (60) is 1400 mm, and the typical distance between the axes (96a) and (96b) of the two stepped rolls is about 400 mm.
  • Axes of rotation (96a) (as shown in Figures 3a and 3b) of the first feed rolls (94b) and the first draw rolls (92a) are positioned in or substantially in a first plane and locating axes of rotation (96b) of the second feed rolls (94a) and the second draw rolls (92b) are in or substantially in a second plane.
  • the one stepped roll assembly is tilted versus the other assembly in the vertical plane by a tilt angle and skewed versus the other assembly in the horizontal plane by a skew angle.
  • the first and the second unheated rotatable stepped feed and draw roll assemblies in each spinning assembly are mirror images of one another.
  • each of the unheated rotatable stepped feed and draw roll assemblies is a double stepped roll assembly.
  • a second roll step to smaller diameter on the outside helps to achieve better yarn relaxation, and hence better yarn package formation, by isolating the relax tension from the winding tension.
  • each of the rotatable stepped feed and draw roll assemblies comprises a first feed roll (94b), a second feed roll (94a), a first draw roll (92a), a second draw roll (92b), a first relax roll (93b) and a second relax roll (93a).
  • the first and second feed rolls (94b, 94a) have a first diameter (95) and the first and second relax rolls (93b, 93a) have a second diameter (97a or 97b) greater than the first diameter (95).
  • the first and second draw rolls (92a, 92b) have a third diameter (91) greater than the second diameter (97a, 97b).
  • the first feed roll (94b), the second feed roll (94a), the first draw roll (92a), the second draw roll (92b), the first relax roll (93b) and the second relax roll (93a) are adapted to rotate at the same speed with axes of rotation (96a, 96b) angled to provide advancement of the multifilament yarns (80), from the first feed roll (94b), the second feed roll (94a), the first draw roll (92a), the second draw roll (92b), the first relax roll (93b) and the second relax roll (93a) and provide a preselected draw ratio of the multifilament yarns (80) and preselected amount of yarn relaxation prior to winding.
  • the double sided steam relax unit (100) shown relative to the stepped roll assemblies, variously, in Figures 2a, 2b and 2c, receives the multifilament yarns (80) from the first and the second unheated rotatable stepped feed and draw roll assemblies and applies a steam atmosphere to the yarn.
  • the tension relaxation results in stable yarn package formation from lessened yarn retraction forces.
  • interlacing jets 120
  • first feed roll 94b
  • steam relax unit 100
  • the shared, or double sided, steam application unit (100) implemented here is shown in cut-away detail from two views at right angles to one another in Figure 4a and Figure 4b.
  • This design (100) cuts costs and reduces congestion on the front of the machine and increases space at the back since process, jacket, condensate and extract services are halved by sharing.
  • the shared, or double sided, steam relax unit (100) is between the first and second unheated rotatable stepped feed and draw roll assemblies.
  • the steam relax unit (100) is as close to the final contact of the yarns (80) with the draw rolls as possible to minimize the build up of tension from air drag before the steam relaxation since lower tension encourages more relaxation reducing subsequent retraction on the packages.
  • the steam relax unit (100) is vertically between the first draw rolls (92a) and the second draw rolls (92b).
  • the steam relax unit (100), as viewed in Figure 4a includes a tube (106) through which steam enters leading to a chamber (104) having openings (108). There is also a baffle (110), standing off from the internal steam chamber (107) on pins (112), for blocking the multiple steam outlet openings (108) from impacting directly on the multifilament yarns (80).
  • the steam relax unit (100) is adapted to cause steam to be applied to the multifilament yarns (80) with the multifilament yarns (80) at tensions at or below 0.2 grams per decitex at or about atmospheric pressure.
  • the steam relax unit (100) has halves which are substantial mirror images of one another ( Figure 4a).
  • the first and second pre wind-up guide (60) maintains the separation of the multifilament yarns (80), fanning the first and second plurality of the multifilament yarns (80).
  • the first (74a) and the second (74b) windup assembly are for winding the first and the second plurality of the multifilament yarns (80) into a first and a second plurality of packages (70).
  • the first and the second windup assembly (72a, 72b) comprise a double deck windup assembly (74a, 74b) with yarn traversing means (76) for winding the multifilament yarns onto yarn cores mounted on spindle (75) into yarn packages (70).
  • the first and the second windup assemblies (74a, 74b) have a windup spindle or chuck (75) for winding the first and the second plurality of the multifilament yarns (80) into a first and second plurality of packages (70).
  • a horizontal distance (10) shown in Figure 2a) between axes of rotation of the windup chuck (72 or 75) in the first windup assembly (74a) in the first spinning assembly and the windup chuck (72 or 75) in the first windup assembly (74a) in the second and the third spinning assemblies is a maximum distance of less than or equal to 1000 mm and preferably less than or equal to 600 mm.
  • the first and the second windup assemblies (74a, 74b) each include a traversing guide (76) for moving the first and the second plurality of the multifilament yarns (80) back and forth transverse to the multifilament yarns for winding the multifilament yarns on cores into the packages (70).
  • the spinning machines of the present invention are capable of spinning yarns of 10 to 250 decitex, of operating at 4,000 mpm to 6,000 mpm, in all melt spinning processes for fibers from all polyamides, especially nylon 6,6, nylon 6, nylon 6,10 and nylon 6,12 and polyesters, especially polyethylene terephthalate and polypropylene terephthalate.
  • the invention is further directed to a yarn spinning machine conversion process for converting a partially oriented yarn spinning machine to the fully oriented yarn spinning machine.
  • Illustrated schematically in Figure 1 is a plurality of partially oriented yarn spinning machines similar to those in wide commercial use that can be easily converted to the fully oriented yarn spinning machine of the present invention as shown in Figure 2a.
  • the partially oriented yarn spinning machine is for making a first and a second plurality of partially oriented multifilament yarns.
  • "partially oriented yarn” or POY means a yarn of greater than 60% elongation to break
  • "fully oriented yarn” or FOY means a yarn of less than 60% elongation to break.
  • the POY spinning machine comprises a plurality of substantially similar spinning assemblies in a row, including as illustrated in Figure 1 a first spinning assembly in a confined space between a second spinning assembly and a third spinning assembly.
  • Each spinning assembly has a spin pack (22), a quench chimney (25), a finish applicator and convergence guide (40), a first and a second alignment guide (50), a first and a second pre windup guide (60), and a first and a second windup assembly not shown, but in relative position to where a plurality of yarn packages (70) are wound on tube cores (72).
  • the yarn spinning machine conversion process for converting a POY spinning machine to a FOY spinning machine comprises the following steps in any order.
  • the first and the second alignment guide (50) are relocated and/or replaced such that the relocated or replaced first and second alignment guides (50), in Figure 2a are for receiving the first and the second plurality of multifilament yarns (80) and directing the multifilament yarns to the first and a second unheated rotatable stepped feed and draw roll assemblies (90) in Figure 2a.
  • Guides (50) in Figure 2a now space out the threadlines to contact the feed roll surfaces individually.
  • the first and the second unheated rotatable stepped feed and draw roll assemblies (90) are mounted in the confined space, essentially that space provided between neighboring machines and limited by the fixed difference (10) between the winding axes indicating by distance (10).
  • the first and a second unheated rotatable stepped feed and draw roll assemblies (94a, 94b and 92a, 92b) are for receiving the first and the second plurality of the multifilament yarns (80) from the first and the second alignment guides (50), respectively, and for drawing the multifilament yarns (80) to increase their length by a fixed amount.
  • the steam relax unit (100) is installed in the confined space between the first and the second unheated rotatable stepped feed and draw roll assemblies (90).
  • the steam relax unit (100) is for receiving the multifilament yarns (80) from the unheated rotatable stepped feed and draw roll assemblies (90) and for applying steam to the multifilament yarns (80) to stabilize the multifilament yarns (80).
  • the exit guide (116) is added immediately after the steam relax unit (100) for maintaining the separation of the multifilament yarns (80) within the steam relax unit (100) and for directing the first and second plurality of the multifilament yarns (80) to a first and a second windup assembly (74a and 74b), respectively, for winding the first and the second plurality of the multifilament yarns (80) into a first and a second plurality of packages (70).
  • a maker of multifilament nylon yarns can convert a POY spinning machine asset base to a FOY machine asset base in response to market demand shifts in the relative fraction of the product, POY versus FOY.
  • the conversion method of the present invention does not require winder relocation for spacing requirements and effectively and economically converts the typical POY machine to spin FOY yarns providing a novel apparatus. Further benefits are realized with the conversion process of our invention by reversibly performing such a conversion. A fiber maker can then "swing" between product types in response to market-demands.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Claims (16)

  1. Machine à filer pour produire une première et une deuxième pluralité de fils multifilaments à orientation complète (80), comprenant:
    au moins un premier assemblage de filage comportant:
    un ensemble de filage (22) contenant une plaque de filière pour fournir une pluralité de filaments (30);
    une cheminée de trempe (25) pour recevoir et refroidir les filaments (30);
    un applicateur d'apprêt et un guide de convergence (40) pour recevoir les filaments (30) venant de la plaque de filière, pour appliquer un apprêt aux filaments (30) et pour faire converger les filaments (30) dans une première et une deuxième pluralité de fils multifilaments (80);
    un premier et un deuxième guide d'alignement (50) pour recevoir la première et la deuxième pluralité de fils multifilaments (80) de l'applicateur d'apprêt et du guide de convergence (50) et pour diriger les fils multifilaments (80);
    un premier et un deuxième guide de pré-enroulement (60) pour maintenir la séparation des fils multifilaments (80) et pour diriger la première et la deuxième pluralité de fils multifilaments (80); et
    un premier et un deuxième assemblage d'enroulement (74a, 74b) pour enrouler la première et la deuxième pluralité de fils multifilaments (80) dans une première et une deuxième pluralité de bobines (70);
       caractérisée en ce que l'assemblage de filage comporte en outre
    un premier et un deuxième assemblage de cylindres à gradins rotatifs non chauffés (90) pour recevoir respectivement la première et la deuxième pluralité de fils multifilaments (80) des premier et deuxième guides d'alignement (50), et pour étirer les fils multifilaments (80) pour accroítre leur longueur d'une valeur fixe;
    une unité de détente à la vapeur (100) agencée entre des premier et deuxième assemblages de cylindres d'alimentation et d'étirage à gradins rotatifs non chauffés (90) et au-dessus des premier et deuxième guides de pré-enroulement (60), l'unité de détente à la vapeur (100) étant destinée à recevoir les fils multifilaments (80) des assemblages de cylindres d'alimentation et d'étirage à gradins rotatifs non chauffés (90) et à appliquer de la vapeur aux fils multifilaments (80) pour stabiliser les fils multifilaments (80).
  2. Machine à filer selon la revendication 1, englobant un guide de sortie (116) pour maintenir la séparation des fils multifilaments (80) dans l'unité de détente à la vapeur (100).
  3. Machine à filer selon la revendication 1, dans laquelle les premier et deuxième assemblages de cylindres d'alimentation et d'étirage à gradins rotatifs non chauffés (90) comprennent un premier cylindre d'alimentation (94b), un deuxième cylindre d'alimentation (94a), un premier cylindre d'étirage (92a) et un deuxième cylindre d'étirage (92b), les premier et deuxième cylindres d'alimentation (94b, 94a) ayant des premiers diamètres (95) et les premier et deuxième cylindres d'étirage (92a, 92b) ayant des deuxièmes diamètres (91) supérieurs aux premiers diamètres (95); et
       l'unité de détente à la vapeur (100) étant agencée verticalement entre les premiers cylindres d'étirage (92a) et les deuxièmes cylindres d'étirage (92b).
  4. Machine à filer selon la revendication 1, dans laquelle les premier et deuxième assemblages d'enroulement (74a, 74b) comprennent un assemblage d'enroulement à deux étages pour enrouler les fils multifilaments sur des noyaux dans les bobines (70).
  5. Machine à filer selon la revendication 1, dans laquelle les premier et deuxième assemblages d'enroulement (74a, 74b) comportent un mandrin d'enroulement (72) pour enrouler la première et la deuxième pluralité de fils multifilaments (80) en une première et deuxième pluralité de bobine (70); et comportant
    des deuxième et troisième assemblages de filage, le premier assemblage de filage étant agencé entre les deuxième et troisième assemblages de filage; et
    la distance horizontale (10) entre les axes de rotation du mandrin d'enroulement (72) dans le premier assemblage d'enroulement (74a) dans le premier assemblage de filage et le mandrin d'enroulement (72) dans le premier assemblage d'enroulement (74a) dans les deuxième et troisième assemblages de filage correspondant à une distance maximale inférieure ou égale à 1000 mm, de préférence inférieure ou égale à 600 mm.
  6. Machine à filer selon la revendication 1, dans laquelle l'unité de détente à la vapeur (100) englobe un déflecteur (110) pour empêcher un jet d'admission de vapeur de heurter les fils multifilaments (80), l'unité de détente à la vapeur (100) comportant des moitiés pratiquement symétriques l'une à l'autre.
  7. Machine à filer selon la revendication 1, dans laquelle les premier et deuxième assemblages de cylindres à gradins (90) sont symétriques l'un à l'autre.
  8. Machine à filer selon la revendication 1, dans laquelle chacun des assemblages de cylindres à gradins (90) est un double assemblage de cylindres à gradins.
  9. Procédé de conversion pour convertir une machine à filer le fil à orientation partielle en une machine à filer le fil à orientation complète, la machine à filer le fil à orientation partielle comportant un premier assemblage de filage dans un espace confiné entre des assemblages de filage adjacents, le procédé comprenant les étapes ci-dessous:
    repositionnement et/ou remplacement d'un premier et d'un deuxième guide d'alignement (50) pour recevoir une première et une deuxième pluralité de fils multifilaments (80) et diriger les fils multifilaments (80);
    montage d'un premier et d'un deuxième assemblage de cylindres d'alimentation et d'étirage à gradins rotatifs non chauffés (90) dans l'espace confiné pour recevoir respectivement la première et la deuxième pluralité de fils multifilaments (80) des premier et deuxième guides d'alignement (50) et pour étirer les fils multifilaments (80) pour accroítre leur longueur d'une valeur fixe; et
    installation d'une unité de détente à la vapeur (100) dans l'espace confiné entre les premier et deuxième assemblages de cylindres d'alimentation et d'étirage à gradins rotatifs non chauffés (90), l'unité de détente à la vapeur (100) étant destinée à recevoir les fils multifilaments (80) des assemblages de cylindres d'alimentation et d'étirage à gradins rotatifs non chauffés (90) et à appliquer de la vapeur aux fils multifilaments (80) avant qu'ils sont dirigés respectivement vers un premier et un deuxième assemblage d'enroulement (74a, 74b), pour enrouler la première et la deuxième pluralité de fils multifilaments (80) en une première et une deuxième pluralité de bobines (70).
  10. Procédé selon la revendication 9, englobant l'addition d'un guide de sortie (116) pour maintenir la séparation des fils multifilaments (80) dans l'unité de détente à la vapeur (100) et pour diriger les fils multifilaments (80).
  11. Procédé selon la revendication 9, dans lequel
       les premier et deuxième assemblages de cylindres d'alimentation et d'étirage à gradins rotatifs non chauffés (90) comprennent un premier cylindre d'alimentation (94b), un deuxième cylindre d'alimentation (94b), un premier cylindre d'étirage (92a) et un deuxième cylindre d'étirage (92b), les premier et deuxième cylindres d'alimentation (94a, 94b) ayant des premiers diamètres (95), les premier et deuxième cylindres d'étirage (92a, 92b) ayant des deuxièmes diamètres (91) supérieurs aux premiers diamètres (95), l'unité de détente à la vapeur (100) étant installée lors de l'étape d'installation dans une position verticale entre les premiers cylindres d'étirage (92a) et les deuxièmes cylindres d'étirage (92b).
  12. Procédé selon la revendication 9, dans lequel les premier et deuxième assemblages d'enroulement (74a, 74b) comprennent un assemblage d'enroulement à deux étages pour enrouler les fils multifilaments (80) sur des noyaux dans des bobines (70).
  13. Procédé selon la revendication 9, dans lequel:
    les premier et deuxième assemblages d'enroulement (74a, 74b) comportent un mandrin d'enroulement (72 ou 75) pour enrouler la première et la deuxième pluralité de fils multifilaments (80) en une première et une deuxième pluralité de bobines (70);
    les assemblages de filage adjacents englobant un premier et un deuxième assemblage d'enroulement (74a, 74b) comportant un mandrin d'enroulement (72 ou 75) pour enrouler une première et une deuxième pluralité de fils multifilaments (80) en une première et une deuxième pluralité de bobines (70); et
    une distance horizontale (10) entre les axes de rotation du mandrin d'enroulement (72 ou 75) dans le premier assemblage d'enroulement (74a) dans le premier assemblage de filage et le mandrin d'enroulement (72 ou 75) dans le premier assemblage d'enroulement (74a) dans les assemblages de filage adjacents correspondant à une distance maximale inférieure ou égale à 1000 mm et de préférence inférieure ou égale à 600 mm.
  14. Procédé selon la revendication 9, dans lequel l'unité de détente à la vapeur (100) est destinée, au cours de l'étape d'installation, à appliquer de la vapeur aux fils multifilaments (80) sans jets internes et sans guides internes des fils multifilaments.
  15. Procédé selon la revendication 9, dans lequel, au cours de l'étape de montage, les premier et deuxième assemblages de cylindres d'alimentation et d'étirage à gradins rotatifs non chauffés (90) sont symétriques l'un à l'autre.
  16. Procédé selon la revendication 9, dans lequel, au cours de l'étape de montage, chacun des assemblages de cylindres d'alimentation et d'étirage à gradins rotatifs non chauffés (90) est un double assemblage à gradins.
EP97951492A 1996-11-27 1997-11-25 Machine a filer et procede de conversion associe Expired - Lifetime EP0941374B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9624683 1996-11-27
GB9624683A GB2319745B (en) 1996-11-27 1996-11-27 Spinning machine and conversion process
PCT/US1997/021903 WO1998023797A1 (fr) 1996-11-27 1997-11-25 Machine a filer et procede de conversion associe

Publications (2)

Publication Number Publication Date
EP0941374A1 EP0941374A1 (fr) 1999-09-15
EP0941374B1 true EP0941374B1 (fr) 2001-10-10

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EP97951492A Expired - Lifetime EP0941374B1 (fr) 1996-11-27 1997-11-25 Machine a filer et procede de conversion associe

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EP (1) EP0941374B1 (fr)
JP (1) JP3869018B2 (fr)
KR (1) KR100497102B1 (fr)
AR (3) AR010663A1 (fr)
BR (1) BR9712965A (fr)
DE (1) DE69707299T2 (fr)
ES (1) ES2164375T3 (fr)
GB (1) GB2319745B (fr)
WO (1) WO1998023797A1 (fr)
ZA (1) ZA9710191B (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT406274B (de) * 1998-10-20 2000-03-27 Sml Maschinengesellschaft Mbh Einrichtung zur herstellung von multifilamenten
TW584680B (en) 1999-05-28 2004-04-21 Inventa Fischer Ag Device for intermingling, relaxing, and/or thermosetting of filament yarn in a melt spinning process, as well as associated processes and the filament yarn manufactured therewith
DE10015454C2 (de) * 1999-05-28 2001-05-23 Inventa Fischer Ag Zuerich Vorrichtung zur Verwirbelung, Relaxierung und/oder zur Thermoschrumpf-Fixierung von Filamentgarn in einem Schmelzspinnprozess sowie entsprechende Verfahren und damit hergestelltes Filamentgarn
JP3623402B2 (ja) * 1999-07-15 2005-02-23 ユニ・チャーム株式会社 冷却延伸装置
WO2013013968A1 (fr) * 2011-07-26 2013-01-31 Oerlikon Textile Gmbh & Co. Kg Dispositif de filage à chaud
CN114737269B (zh) * 2022-04-14 2023-07-28 江苏九九久新材料有限公司 一种聚乙烯纺丝铺丝机

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3978192A (en) * 1971-09-23 1976-08-31 Sussman Martin V Method of drawing fibers using a microterraced drawing surface
AR207251A1 (es) * 1975-05-22 1976-09-22 Monsanto Co Procedimiento para producir un hilado partiendo de un polimero de poliamida termoplastica para la hilatura en estado de fusion
CH623611A5 (en) * 1979-07-18 1981-06-15 Inventa Ag Process for continuous production of drawn nylon 6 filament yarns from nylon 6 melts
US4646514A (en) * 1983-04-25 1987-03-03 Monsanto Company Partially oriented nylon yarn and process
CA1292602C (fr) * 1986-10-24 1991-12-03 Hugo Specker Methode de production d'un file de polyester lisse, et file ainsi produit
US4891872A (en) * 1988-05-09 1990-01-09 Sussman Martin V Apparatus for incrementally drawing fibers
US5136763A (en) * 1990-12-18 1992-08-11 E. I. Du Pont De Nemours And Company Process for the production of uniform yarns via reduced tension-induced slippage
US5558826A (en) * 1995-02-07 1996-09-24 E. I. Du Pont De Nemours And Company High speed process for making fully-oriented nylon yarns

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Publication number Publication date
ZA9710191B (en) 1999-05-12
JP2001506709A (ja) 2001-05-22
ES2164375T3 (es) 2002-02-16
GB2319745B (en) 2001-01-10
DE69707299D1 (de) 2001-11-15
DE69707299T2 (de) 2002-07-04
GB2319745A (en) 1998-06-03
JP3869018B2 (ja) 2007-01-17
KR20000057288A (ko) 2000-09-15
AR018019A2 (es) 2001-10-31
AR010663A1 (es) 2000-06-28
WO1998023797A1 (fr) 1998-06-04
KR100497102B1 (ko) 2005-06-29
AR018018A2 (es) 2001-10-31
EP0941374A1 (fr) 1999-09-15
BR9712965A (pt) 2000-02-01
GB9624683D0 (en) 1997-01-15

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