WO2001071070A1 - Systeme de tirage de fil en fusion - Google Patents

Systeme de tirage de fil en fusion Download PDF

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Publication number
WO2001071070A1
WO2001071070A1 PCT/JP2001/002393 JP0102393W WO0171070A1 WO 2001071070 A1 WO2001071070 A1 WO 2001071070A1 JP 0102393 W JP0102393 W JP 0102393W WO 0171070 A1 WO0171070 A1 WO 0171070A1
Authority
WO
WIPO (PCT)
Prior art keywords
cooling air
melt
spun yarn
cooling
spinning
Prior art date
Application number
PCT/JP2001/002393
Other languages
English (en)
Japanese (ja)
Inventor
Takashi Iwade
Takashi Fujii
Makoto Nishioji
Masamichi Yamashita
Original Assignee
Toray Engineering Company,Limited
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 Toray Engineering Company,Limited filed Critical Toray Engineering Company,Limited
Priority to KR10-2001-7013531A priority Critical patent/KR100502397B1/ko
Publication of WO2001071070A1 publication Critical patent/WO2001071070A1/fr

Links

Classifications

    • 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
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • D01D5/092—Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys
    • 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
    • D01D7/00—Collecting the newly-spun products

Definitions

  • the present invention relates to a melt spinning take-up device for synthetic fiber yarns, and more particularly, to a melt spinning take-up device capable of producing a yarn without reducing elongation or increasing unevenness of fineness even when a take-up speed is increased.
  • a melt spinning take-up device capable of producing a yarn without reducing elongation or increasing unevenness of fineness even when a take-up speed is increased.
  • undrawn or semi-drawn synthetic fibers are produced by taking out a spun yarn obtained by spinning a molten polymer from a spinneret while cooling it with a cooling device, and winding it around a bobbin.
  • a cooling device for cooling the spun yarn below the spinneret a cross-flow type in which an air stream flows in an orthogonal direction to the spun yarn was used.
  • melt-spinning winder has a characteristic that when the take-up speed is increased, the molecular orientation in the spun yarn is promoted, and the elongation at break decreases. Further, it is known that when the take-up speed of the spun yarn exceeds 500 Om / min, crystallization occurs due to promotion of molecular orientation. Therefore, when producing a semi-drawn yarn having a large breaking elongation, there is a limit to improving productivity simply by increasing the take-up speed.
  • the draw false twisting yarn has a half elongation of 100% or more at breaking elongation. It is preferred to use drawn yarn.
  • drawn yarn With such a high elongation semi-drawn yarn, if the take-up speed is increased to more than 380 mZ min with a conventional melt-spinning winder equipped with a cross-flow cooling device, However, the elongation at break decreases and the unevenness in fineness increases, and a desired semi-drawn yarn cannot be obtained. Disclosure of the invention
  • An object of the present invention is to provide a melt-spinning winder capable of producing a semi-drawn yarn without reducing the elongation at break or increasing unevenness in fineness even when the take-up speed is higher than before. It is in.
  • a melt spinning take-up device of the present invention that achieves the above object is a melt spinning winder that cools and spins a spun yarn melt-spun from a spinneret,
  • a cooling device disposed below the spinneret; a cooling air introduction portion surrounding the periphery of the spun yarn; and a cooling air blown around the spun yarn connected to a lower portion of the cooling air introduction portion.
  • the cooling air introduced from the outside to the inside of the cooling air introduction part is moved in the running direction of the spun yarn, comprising: an ejector section; and an airflow guide pipe connected to a lower part of the ejector section. It is a special feature to increase the speed of the cooling air on the airflow guide tube.
  • the cooling device is constituted by the cooling air introduction portion, the ejector portion, and the airflow inner pipe, the cooling air is moved in the running direction of the spun yarn in the cooling device, and the speed of the cooling air is reduced by the cooling air.
  • FIG. 1 is a schematic front view illustrating a melt spinning winder of the present invention.
  • FIG. 2 is a perspective view showing a cooling air introduction part of the melt spinning winder of FIG. ⁇
  • FIG. 3 is a longitudinal sectional view showing an ejector section of the melt spinning winder of FIG.
  • FIG. 4 is a longitudinal sectional view showing another embodiment of the ejector section used in the present invention.
  • FIG. 5 is a layout diagram illustrating the layout relationship between the spinneret and the cooling device in the present invention.
  • FIG. 6 is a layout diagram illustrating the layout relationship between the spinneret and the cooling device in the present invention.
  • 1 is a spin beam
  • 2 is a cooling device
  • 3 is a winder
  • the spin beam 1 has a metalling pump 4 at the upper center.
  • a plurality of spin packs 6 are arranged at the bottom, and each spin pack 6 is provided with a spinneret 41.
  • Metalling pump 4 is shown The melted polymer supplied from the spinning machine which is not used is distributed to a plurality of pipes 5 and supplied to each spinning pack 6 by a fixed amount to spin out the yarn Y from the spinneret 41.
  • a cooling device 2 is provided below each spinning pack 6, and a refueling guide 19 and a winding machine 3 are further provided.
  • the spun yarn Y spun from the spinneret 41 is cooled by the cooling device 2, then refueled by the refueling guide 19, and wound up by the winder 3.
  • the cooling device 2 includes a cylindrical cooling air introduction unit 7 provided at a position close to the spinneret 41 and an air ejector mechanism 8 provided below the cooling air introduction unit 7.
  • the air ejector mechanism 8 includes an upper ejector section 60 and a lower airflow guide pipe 9.
  • the cooling air introduction section 7 has an air straightening cylinder 51 arranged inside so as to surround the spun yarn Y, and a large number of holes 52 a, 53 around the outside through a gap.
  • the inner perforated tube 52 having a and the outer perforated tube 53 are concentrically arranged.
  • the inner air flow control cylinder 51 has a multi-porous structure in which the wall surface is laminated so that a number of minute air passages are arranged in the radial direction, and the outer air is supplied to the inner spun yarn through the porous wall. Introduce while rectifying for Article Y.
  • the inner perforated tube 52 covering the outside of the air straightening tube 51 is fixed to the upper surface of the duct 11, and the outer perforated tube 53 outside the perforated tube 53 is relative to the inner perforated tube 52 around a common axis.
  • a flange 10 having an arc-shaped long hole 10a is attached to the lower edge of the outer perforated tube 53 that rotates.
  • the bolt 10b fixed on the duct 11 is inserted into the long hole 10a of the flange 10 and the The outer perforated pipe 53 can be fixed by tightening the bolt 10b.
  • the holes 52a and 53a provided in the inner perforated tube 52 and the outer perforated tube 53 are not limited to the circular shape as shown in the figure, but may be any shape such as an elliptical shape or a slit shape. Is also good.
  • the ejector portion 60 of the air ejector mechanism 8 has an inner tube 62 arranged inside, and an outer tube 63 arranged concentrically outside the inner tube 62.
  • a plurality of rectifying plates 64 are interposed between the pipe 63 and the pipe 63.
  • the inner pipe 62 is a pipe in which the connecting pipe 61 extending from the cooling air introduction part 7 is reduced in diameter at the lower end.
  • the plurality of straightening plates 64 are arranged so that the surface direction is radially directed to the common axis of the inner pipe 62 and the outer pipe 63, and is parallel to the running direction of the spun yarn Y. Have been.
  • the injection port 65 formed on the outlet side of the current plate 64 has an injection angle of 0 ° to 3 ° with respect to the running direction of the spun yarn Y.
  • the ejector unit 60 is housed and fixed in a common duct 11 together with the ejector unit 60 similarly provided in the other spinning packs 6.
  • Compressed air is supplied to the duct 11 from a blower (not shown) via a supply pipe 11a, and the compressed air is supplied to a gap between the inner pipe 62 and the outer pipe 63 of each ejector section 60. Penetrates and is jetted around the running yarn Y from the jet port 65 while being rectified by the current plate 64. It has become so.
  • the inside of the upper cooling air introduction section 7 becomes negative pressure. Due to the generation of the negative pressure, the temperature-controlled air in the room is rectified further from the hole 53a of the outer perforated pipe 53 through the hole 52a of the inner perforated pipe 52 through the hole 53a of the inner perforated pipe 53. While being fed around the inner spun yarn Y. The air introduced into the inside cools the spun yarn Y as cooling air, and further increases the velocity while flowing down along the spun yarn Y. The cooling air is further accelerated in the ejector section 60 and flows down to the airflow guide pipe 9. The spun yarn Y that has flowed down together with the cooling air is gradually cooled, and solidification is completed in the airflow guide pipe 9.
  • a divergent pipe 12 is attached to the outlet end of the airflow guide pipe 9.
  • the divergent tube 12 has an outer diameter that increases toward the downstream side and has a large number of holes formed in the wall surface. Therefore, the cooling air flowing down the airflow guide pipe 9 is decelerated by expanding in the divergent pipe 12. In other words, the diverging pipe 12 acts as an airflow deceleration section.
  • the duct 11 having the ejector section 60 inside as described above is supported by the guide rails 13 and 14 erected on both sides by the cylinders 15 and 16 and attached to both sides. Are engaged with the guide rails 13, 14 via the rollers 17, 18.
  • the cylinders 15 and 16 are telescopically operated, the duct 11 moves up and down along the guide rails 13 and 14.
  • the cooling air introduction part 7 is positioned below the spin beam 2 during melt spinning.
  • the cooling air introduction unit 7 can be lowered to open a working space between the spin air 2 and the lower surface of the spin beam 2.
  • the cylinders 15 and 16 may be air cylinders or hydraulic cylinders.
  • the arrangement of the plurality of spinnerets 41 (spinning packs 6) provided on the spin beam 1 was arranged in a single row in the embodiment ′ of FIG. 1, but as shown in FIG.
  • the front and rear sides may be arranged in two rows, and may be staggered. With this arrangement, even if a larger number of spinning packs 6 are arranged per spin beam, the spin beam is maintained while maintaining the distance d between the adjacent cooling devices 2 at a predetermined distance.
  • the total length L of 1 can be shortened.
  • the arrangement of a plurality of spinnerets 41 (spinning packs 6) provided in the spin beam 1 can be formed in an arc shape. According to such an arc-shaped arrangement, it is easy to make the distance of the pipe 5 for supplying the molten polymer from the metallizing pump 4 to each of the spinnerets 41 almost equal, and the thermal history of the polymer And the physical properties of the yarn can be made uniform.
  • the cooling air flows in the cooling device 2 in the same direction as the traveling direction of the spun yarn Y, and the flow velocity of the cooling air is changed in the vicinity of the spinneret 41. It is characteristic that the pressure is increased toward the airflow guide pipe 9. Adjustment of the cooling air velocity in this way is performed by adjusting the outer perforated pipe at the cooling air inlet ⁇ 5.3
  • the control can be carried out by controlling the amount of air introduced by the controller and by controlling the amount of compressed air supplied by the injector unit 60.
  • the supply of compressed air can be controlled by adjusting the pressure.
  • the spun yarn Y and the cooling air are accelerated by the compressed air downstream of the ejector section 60, and the spun yarn Y is solidified in the airflow guide pipe 9 by cooling. Reach the point.
  • the spun yarn Y is exposed to the cooling air flowing in the same direction, so that the air drag is reduced, so that the stress applied to the spun yarn Y is reduced, and the molecular orientation is suppressed. Will be. Therefore, it is possible to maintain a high elongation at break while increasing the take-off speed.
  • the entire length of the airflow guide tube 9 be 10 to 50 times the inner diameter. If the entire length of the airflow guide tube 9 is less than 10 times the inner diameter, it is difficult to always stably solidify the solidification point in the airflow guide tube 9, so that the yarn elongation tends to vary. . If the entire length of the airflow guide tube 9 is larger than 50 times the inner diameter, the pressure loss in the airflow guide tube 9 increases, so that the negative pressure on the upstream side is insufficiently generated, and the cooling of the spun yarn is suppressed. Incompleteness causes unevenness of fineness.
  • the cooling air velocity near the spinneret 41 is increased, a turbulent flow is generated, and the turbulent flow causes the spun yarn Y being cooled to vibrate, causing unevenness in fineness. appear.
  • the speed is set to m / min and the speed is set to 1 / 1.2 to 1/2 in the vicinity of the spinneret 41.
  • the cooling air velocity is reduced for spinning yarns with a small fineness, and the cooling air velocity is increased for spinning yarns with a fineness. Further, it is preferable that the length of the cooling air introducing portion 7 is increased as the yarn size becomes larger.
  • the injection speed in the ejector section 60 is preferably set to 300 mZmin or less.
  • the injection direction of the compressed air injected from the injection port 65 of the ejector section 60 is preferably set at an angle S of 0 ° to 3 ° with respect to the running direction of the spun yarn Y, Especially 0 ° is good. That is, as shown in FIG. 4, when the angle 0 is 0 °, since the injection direction of the injection port 65 and the axial direction of the inner pipe 62 are parallel, the injection was performed from the injection port 65. The airflow of the compressed air moves with the boundary layer 101 without intermingling with the airflow flowing out of the inner pipe 62.
  • the speed V2 of the compressed air from the injection port 65 is faster than the speed V1 of the airflow from the inner pipe 62, the pressure of the compressed air is lower. Accordingly, the spun yarn Y is bent and displaced toward the boundary layer 101, and the distance between the constituent filaments is increased, so that cooling is promoted. The boundary layer 101 disappears as it goes downstream.
  • the divergent pipe 12 connected to the lower end of the airflow guide pipe 9 expands the cooling air descending with the spun yarn Y, and reduces the amount reaching the lubrication guide 19 by using the lubrication guide 19. Reduces yarn sway To reduce oil spots.
  • the inclination angle of the compressed air injected from the injection port 65 to the spun yarn Y is 1.5 °
  • the compressed air temperature is 40 ° C
  • the pressure is 4 ° C.
  • the polyester multifilament yarn 13 33 dtx-136 f was melt-spun and taken up at 400 m / min.
  • the breaking elongation of the obtained polyester semi-drawn yarn was 120%.
  • the fineness unevenness (U%) was 0.8%.
  • the cooling air velocity is set at 18 m / min, and the polyester multifilament yarn is melt spun 13 3 dt X — 36 f Then, it was picked up at 400 mZin.
  • the breaking elongation of the obtained polyester semi-drawn yarn was 90.
  • the fineness unevenness (U%) was 0.9%, and the breaking elongation was low.
  • the cooling air velocity was 22 m / min at the upper end of the cooling air introduction part 7, 32 m / min at the lower end, and 220 mZm in in the airflow guide tube 9.
  • the polyester multifilament yarn 280 dtx-48 f was melt-spun and taken up at 400 OmZmin.
  • the breaking elongation of the obtained polyester semi-drawn yarn was 121%, and the fineness unevenness (U%) was 0.9%.
  • Polyester multifilament yarn 13 3 dx-36 f was produced under the same conditions as in Example 1 except that the angle 0 of the injection port 65 was set to 0 °.
  • the elongation at break of the obtained polyester semi-drawn yarn was 11.8%, and the unevenness of fineness (U%) was 1.0%.
  • a polyester multifilament yarn 13 3 dx-36 f was produced under the same conditions as in Example 1 except that the yarn was taken out at 450 mZmin.
  • the resulting polyester semi-drawn yarn had an elongation at break of 102% and a spot size (U%) of 0.7%.
  • Polyester multifilament yarn 13 3dx -36f was produced under the same conditions as in Example 1 except that the angle 0 of the injection port 65 was changed to 3 °.
  • the resulting polyester semi-drawn yarn had a breaking elongation of 124% and a spot size (U%) of 1.1%.
  • the cooling device is constituted by the cooling air introduction unit, the ejector unit, and the airflow guide tube, and the cooling air is spun in the cooling device.
  • the cooling air is moved in the running direction of the yarn and the speed of the cooling air is
  • the solidification point of the spun yarn can be made to exist in the airflow guide tube, and the take-up speed can be increased, and the decrease in elongation and the unevenness of fineness can be increased. It is possible to obtain a semi-drawn yarn without any problem.
  • the present invention can be used in the field of synthetic fiber production, particularly when producing high elongation semi-drawn yarn at a high take-off speed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

L'invention porte sur un système de tirage de fil en fusion comportant un dispositif de refroidissement placé sous la filière, muni d'entrées d'air entourant les fils sortants, de buses montées à la base de la filière et soufflant de l'air comprimé autour du fil sortant, et de tubes de guidage du flux d'air montés à la base des buses et défléchissant l'air provenant des entrées d'air dans la direction de défilement du fil sortant, accroissant par là la vitesse du flux d'air traversant les tubes de guidage.
PCT/JP2001/002393 2000-03-24 2001-03-26 Systeme de tirage de fil en fusion WO2001071070A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR10-2001-7013531A KR100502397B1 (ko) 2000-03-24 2001-03-26 용융방사 감음 장치

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000084211 2000-03-24
JP2000-84211 2000-03-24

Publications (1)

Publication Number Publication Date
WO2001071070A1 true WO2001071070A1 (fr) 2001-09-27

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ID=18600719

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2001/002393 WO2001071070A1 (fr) 2000-03-24 2001-03-26 Systeme de tirage de fil en fusion

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KR (1) KR100502397B1 (fr)
CN (1) CN1236115C (fr)
TW (1) TW561204B (fr)
WO (1) WO2001071070A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003102278A1 (fr) * 2002-06-03 2003-12-11 Toray Industries, Inc. Dispositif et procede de fabrication de fil
EP2392698A1 (fr) * 2010-06-04 2011-12-07 TMT Machinery, Inc. Refroidisseur de filaments

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3868404B2 (ja) * 2003-07-24 2007-01-17 Ｔｍｔマシナリー株式会社 溶融紡糸装置
CN103160939A (zh) * 2011-12-08 2013-06-19 上海启鹏工程材料科技有限公司 一种加压纺丝喷丝组件及其实施方法
JP2015014071A (ja) * 2013-07-08 2015-01-22 Ｔｍｔマシナリー株式会社 糸条冷却装置
JP2021055235A (ja) * 2019-10-02 2021-04-08 Ｔｍｔマシナリー株式会社 紡糸生産設備
CN111172604A (zh) * 2020-03-02 2020-05-19 吴海月 一种化纤设备的环吹风扇

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2954271A (en) * 1958-03-10 1960-09-27 Du Pont Process for producing shaped articles using sonic vibrations to enhance solidification
US3111368A (en) * 1963-11-08 1963-11-19 Du Pont Process for preparing spandex filaments
JPS442171Y1 (fr) * 1966-08-13 1969-01-27

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2954271A (en) * 1958-03-10 1960-09-27 Du Pont Process for producing shaped articles using sonic vibrations to enhance solidification
US3111368A (en) * 1963-11-08 1963-11-19 Du Pont Process for preparing spandex filaments
JPS442171Y1 (fr) * 1966-08-13 1969-01-27

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003102278A1 (fr) * 2002-06-03 2003-12-11 Toray Industries, Inc. Dispositif et procede de fabrication de fil
EP2392698A1 (fr) * 2010-06-04 2011-12-07 TMT Machinery, Inc. Refroidisseur de filaments
JP2011252260A (ja) * 2010-06-04 2011-12-15 Tmt Machinery Inc 糸条冷却装置

Also Published As

Publication number Publication date
TW561204B (en) 2003-11-11
CN1236115C (zh) 2006-01-11
CN1365404A (zh) 2002-08-21
KR20010113885A (ko) 2001-12-28
KR100502397B1 (ko) 2005-07-19

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