EP0580977B1 - Spinnvorrichtung zum Spinnen synthetischer Fäden - Google Patents

Spinnvorrichtung zum Spinnen synthetischer Fäden Download PDF

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Publication number
EP0580977B1
EP0580977B1 EP93108161A EP93108161A EP0580977B1 EP 0580977 B1 EP0580977 B1 EP 0580977B1 EP 93108161 A EP93108161 A EP 93108161A EP 93108161 A EP93108161 A EP 93108161A EP 0580977 B1 EP0580977 B1 EP 0580977B1
Authority
EP
European Patent Office
Prior art keywords
cooling tube
air
cooling
yarns
spinneret
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
EP93108161A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0580977A1 (de
Inventor
Heinz Dr. Schippers
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.)
Oerlikon Barmag AG
Original Assignee
Barmag AG
Barmag Barmer Maschinenfabrik AG
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 Barmag AG, Barmag Barmer Maschinenfabrik AG filed Critical Barmag AG
Publication of EP0580977A1 publication Critical patent/EP0580977A1/de
Application granted granted Critical
Publication of EP0580977B1 publication Critical patent/EP0580977B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • 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

Definitions

  • the invention relates to a device for spinning man-made fibers according to the preamble of claim 1.
  • This spinning device is known from DE-A 19 14 556.
  • it has the advantage that the fiber bundle, which consists of a large number of individual filaments, is subjected to an air flow over its entire circumference.
  • uneven thread properties arise. This unevenness may be due to the fact that the chemical fibers running at very high speed and at the same time very high thread tension only become uniform over their length if the running smoothness is very great.
  • air turbulence in the spinning chamber which leads to pressure fluctuations on the outer jacket of the cooling tube, also results in an uneveness of the filaments or threads produced. This is especially true when the spinning device is operated at a very high winding speed. Because this creates very strong air movements.
  • EP 0 117 215 B1 and EP 0 118 375 B1 disclose spinning devices whose winding machine, with which the chemical fibers are wound into bobbins, are arranged at a short distance below the spinneret. This is made possible by the fact that Chemical fibers at a very high speed of more than 6000 m / min. be wound up. This results in a very intensive cooling of the threads, so that a very short cooling zone of about 2 m is sufficient, while cooling zones of more than 4 m are required in conventional spinning systems. As a result of the high speed, there is very strong air friction, so that the chemical fibers are wound up more or less completely stretched.
  • the man-made fibers can be drawn off from the spinneret directly by pulling the take-up spool.
  • a delivery mechanism can also be provided between the spinneret and the winding device, in particular a slip conveyor mechanism according to DE patent application P41 35 350.1, published in EP 0 539 866 A.
  • porous or perforated cooling tubes have previously been used, which are the subject of DE-A 34 06 347 (Bag. 1326) and DE-A 34 24 253.8-26 (Bag. 1419) ) are. Reference can also be made to DE-A 37 41 135 (Bag. 1558) and DE-A 39 23 067 (Bag. 1648).
  • the cooling air is supplied in a defined manner by a blower, so that the air flow supplied to the cooling pipe can be largely homogenized in terms of space and time.
  • a disadvantage of this latter blowing technology is that complex apparatus and procedural measures are required in order to achieve a time-uniform and, over the length, very even, ie, vortex-free, air flow onto the chemical fiber bundle.
  • GB-A-1,088,240 discloses a method for spinning a fiber-forming polymer, in which internals are provided in a cooling tube provided under the spinneret for calming the air flow drawn in.
  • the object of the invention is to design the known spinning device so that a simple the chemical fibers run smoothly and chemical fibers with great longitudinal uniformity are produced.
  • the radial air flow is generated in that the chemical fibers running at high speed create a negative pressure in the tube.
  • the invention enables good flow and cooling conditions to be set with little effort.
  • the measure according to claim 3 is also used. These measures not only prevent the air vortices entrained by the fiber bundle from flowing back into the area of the cooling tube and leading to an uneven exposure of the cooling tube to atmospheric air. Rather, it also prevents pressure fluctuations and pressure waves from propagating into the intake area of the cooling tube.
  • the proposed air box is connected to the atmosphere.
  • the air box is designed so that there is essentially atmospheric pressure or vacuum.
  • defined openings can be provided at one or more points.
  • An intermediate wall can be used to prevent the inflowing air from acting directly on the outer circumference of the cooling tube.
  • the air box can be penetrated by a plurality of cooling tubes, each of which is assigned to a spinneret. This makes it possible to produce the same cooling conditions for the majority of the cooling tubes and in this way to one another to produce the same and uniform chemical fibers.
  • the air box is not connected to a blower with which an air pressure, albeit low, is generated in the air box. Rather, the fact that a pressure gradient arises which is directed from the spinning chamber into the air box and from there into the cooling tube is used for the air supply.
  • Measures can be provided to direct the air currents drawn into the cooling tube from the outside in. This can be done in particular by guide rings which are attached to the inner wall of the cooling tube in one or more normal planes and are directed essentially radially inwards. Of course, these guide lines leave a passage opening for the chemical fiber bundle in the center of the cooling tube. In the embodiment according to claim 3, in addition to the appropriate deflection of the air flow, a vacuum is also created on the underside of the guide rings, which leads to pre-suction of the outside air.
  • the invention is described below using exemplary embodiments:
  • a polymer melt is fed through a melt line 1 to the so-called spinning head 2.
  • the spinning head 2 contains in particular a (not shown) spinning pump, through which a metered amount of the melt is fed to the spinning nozzle 3.
  • the spinneret 3 is a plate with a plurality of outlet bores.
  • a filament 4 emerges from each outlet bore.
  • the filaments 4 are combined into a thread by a thread guide 7.
  • a traversing device 8 - here designed as wing traversing with a guide line - the thread is fed to the take-up spool 10 with a partial wrap around a measuring roller 9.
  • the take-up spool 10 is formed on a winding tube 12.
  • the winding tube 12 is clamped on a rotatably driven spindle 11.
  • four sleeves 12 are clamped on a spindle 11 and at the same time four threads are wound up to form a bobbin 10.
  • the filaments 4 are initially in the open state, ie. H. in front of the thread guide 7, are passed through a cooling tube 5.
  • the cooling tube 5 connects directly to the spinneret 3.
  • the cooling tube 5 is porous. It has a length of 0.5 to 2.0 meters.
  • a shielding plate 6 is applied at the outlet end of the cooling tube 5.
  • the shielding plate 6 has a passage opening for the filament bundle, the width of which is equal to or less than the inside width of the cooling tube 5.
  • the porosity of the cooling tube 5 increases in the direction of the thread.
  • the porosity is essentially proportional, but at least depends on the thread running speed.
  • the porosity can also be adapted to the temperature profile that the filaments have over their length. In both of the cases described, the porosity increases in the thread running direction, ie the air permeability increases.
  • the exemplary embodiment according to FIG. 1 has the special feature that a large number of guide rings 17 are arranged in the cooling tube.
  • the guide rings 17 are annular sheets. These annular sheets are fastened with their outer circumference to the cooling tube 5 and point with their inner edge in the thread running direction, that is to say they are inclined downwards. These guide rings 17 guide the sucked-in air currents downward, but also cause a negative pressure to develop beneath them, so that this results in a suction effect.
  • the thread speed is more than 6000 m / min.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
EP93108161A 1992-06-13 1993-05-19 Spinnvorrichtung zum Spinnen synthetischer Fäden Expired - Lifetime EP0580977B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4219463 1992-06-13
DE4219463 1992-06-13
DE9306510U DE9306510U1 (de) 1992-06-13 1993-04-30 Spinnvorrichtung zum Spinnen synthetischer Fäden

Publications (2)

Publication Number Publication Date
EP0580977A1 EP0580977A1 (de) 1994-02-02
EP0580977B1 true EP0580977B1 (de) 1997-09-24

Family

ID=25915676

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93108161A Expired - Lifetime EP0580977B1 (de) 1992-06-13 1993-05-19 Spinnvorrichtung zum Spinnen synthetischer Fäden

Country Status (6)

Country Link
EP (1) EP0580977B1 (ko)
JP (1) JPH0657518A (ko)
KR (1) KR950010742B1 (ko)
CN (1) CN1031469C (ko)
DE (2) DE9306510U1 (ko)
ES (1) ES2106916T3 (ko)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG67284A1 (en) * 1991-09-06 1999-09-21 Akzo Nobel Nv Apparatus for high speed spinning multifilament yarns and use thereof
BR9400682A (pt) * 1993-03-05 1994-10-18 Akzo Nv Aparelho para a fiação em fusão de fios multifilamentares e sua aplicação
TW250503B (ko) * 1993-04-30 1995-07-01 Barmag Barmer Maschf
TW268054B (ko) * 1993-12-03 1996-01-11 Rieter Automatik Gmbh
US5976431A (en) * 1993-12-03 1999-11-02 Ronald Mears Melt spinning process to produce filaments
DE19535143B4 (de) * 1994-09-30 2006-02-16 Saurer Gmbh & Co. Kg Vorrichtung und Verfahren zur thermischen Behandlung von Fasern
DE19716394C1 (de) * 1997-04-18 1998-09-03 Inventa Ag Verfahren und Vorrichtung zur passiven verzögerten Abkühlung von Spinnfilamenten
DE59910294D1 (de) 1998-06-22 2004-09-23 Saurer Gmbh & Co Kg Spinnvorrichtung zum spinnen eines synthetischen fadens
KR100305668B1 (ko) * 1999-09-13 2001-09-24 조민호 멀티필라멘트 사의 냉각장치
JP2002309431A (ja) * 2000-06-21 2002-10-23 Toray Eng Co Ltd 紡糸装置
JP5332253B2 (ja) * 2008-03-25 2013-11-06 東レ株式会社 フィラメント糸の製造装置および製造方法
CN101776076A (zh) * 2010-03-14 2010-07-14 苏州工业园区华西泵业有限公司 一种纺丝泵试验台的计量部件
CN101782061A (zh) * 2010-03-14 2010-07-21 苏州工业园区华西泵业有限公司 一种纺丝泵试验台
CN117265676A (zh) * 2022-08-04 2023-12-22 南通文凯化纤有限公司 一种石墨烯长丝纤维的成型装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB774814A (en) * 1954-10-21 1957-05-15 Thuringisches Kunstfaserwerk W Process of and apparatus for the melt-spinning of synthetic products
GB1088240A (en) * 1965-08-20 1967-10-25 Ici Ltd Melt spinning of fibre-forming polymers
NL6701693A (ko) * 1966-02-09 1967-08-10
GB1220424A (en) * 1968-03-21 1971-01-27 Toray Industries Method and apparatus for melt-spinning synthetic fibres
US3611485A (en) * 1968-12-30 1971-10-12 Monsanto Co Spinning chimney
SG67284A1 (en) * 1991-09-06 1999-09-21 Akzo Nobel Nv Apparatus for high speed spinning multifilament yarns and use thereof

Also Published As

Publication number Publication date
ES2106916T3 (es) 1997-11-16
CN1031469C (zh) 1996-04-03
DE59307414D1 (de) 1997-10-30
JPH0657518A (ja) 1994-03-01
EP0580977A1 (de) 1994-02-02
CN1080335A (zh) 1994-01-05
DE9306510U1 (de) 1993-06-09
KR940000623A (ko) 1994-01-03
KR950010742B1 (ko) 1995-09-22

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