EP1173634B1 - Systeme de refroidissement pour fils de filaments continus - Google Patents

Systeme de refroidissement pour fils de filaments continus Download PDF

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Publication number
EP1173634B1
EP1173634B1 EP00926823A EP00926823A EP1173634B1 EP 1173634 B1 EP1173634 B1 EP 1173634B1 EP 00926823 A EP00926823 A EP 00926823A EP 00926823 A EP00926823 A EP 00926823A EP 1173634 B1 EP1173634 B1 EP 1173634B1
Authority
EP
European Patent Office
Prior art keywords
shaft
cooling system
filament bundles
air
draw
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
EP00926823A
Other languages
German (de)
English (en)
Other versions
EP1173634A1 (fr
Inventor
Heinz-Dieter Beeck
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.)
LL Plant Engineering AG
Original Assignee
ZiAG Plant Engineering GmbH
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 ZiAG Plant Engineering GmbH filed Critical ZiAG Plant Engineering GmbH
Publication of EP1173634A1 publication Critical patent/EP1173634A1/fr
Application granted granted Critical
Publication of EP1173634B1 publication Critical patent/EP1173634B1/fr
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
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • D01D5/092—Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/115—Lubricator

Definitions

  • the present invention relates to a cooling system for filament bundles, which by at least two arranged side by side Spinneret units spun from polymer melt and with one Deduct speed of ⁇ 1000 m / min from a fume cupboard system be, the filament bundles by a rectified Air flow to be cooled.
  • a completely different cooling concept is based on the cooling of the filaments through a rectified accompanying air flow within one Protection tube per filament bundle, the air flow through blower u. Like. And / or by the caused by the filament advancement Suction is generated (U.S. Patents 5,688,458; 5,360,589; 5,340,517).
  • By funnel-shaped design of the bottom of the otherwise cylindrical Protection tube can according to EP patent 0 396 646, the air consumption reduce and improve the uniformity of the filaments.
  • Loud US Patent 3,611,485 is said to be the freshly spun filament bundle in one always free and uncontrolled cooling airflow is cooled, which is only filled up by fresh air as much as by the controllable output losses arise. Again, there is only one fireplace per Spinneret provided.
  • Patent 3,707,593 discloses a spinning process described, which is only suitable for nonwoven production: In The freshly spun filaments are turned into a pressure-tight spinning tube cooled by means of the compressed air used for extraction, in one cylindrical tube without partitions also several filament bundles can be cooled.
  • the method of EP patent 0 682 720 also wants the Ambient air at the same speed as the filaments carry along in order to later reach the solidification point of the thread and to be able to increase the take-off speed. This is with economy, d. H. higher production speed same quality or higher quality at the same speed founded. This is to be achieved by a in the lower area Extended cylindrical protective tube with suction device. Produce air speeds that are of the order of magnitude Filament take-off speed is, but not a Speed profile, which by the pre-stretching of the still not solidified filament bundle due to speed increase considered.
  • the object of the invention is to provide a cooling system for filament bundles create, which the protection of the not yet solidified filaments and their careful cooling serves and at the same time one if possible easy handling and high economic efficiency.
  • the cooling system is suitable for all those that can be processed by melt spinning Polymers, especially for textile polyester filaments with high Winding speed can be spun.
  • the idea of the invention is based on the fact that in a cylindrical tube an air column in itself flows at (almost) constant speed, even if the air layers in a parabolic flow profile slow down from the inside out. This is for the frozen one Thread that runs even at constant speed, meaningless, but not for the still soft, stretching filaments, whose Speed increases until solidification has occurred. If you now look at a conical tube, it is also here parabolic flow profile (slower from the inside to the outside becoming). But this profile is much stronger at the narrow end pronounced than at the beginning, d. H. the speed of the Air flow is not constant, but increases. And this does not apply only for standard cylindrical tubes, but also for tubes with rectangular cross section.
  • the idea of the invention further assumes that instead of individual, conical tubes for each individual thread, also a tapered one rectangular channel for all threads together can fulfill the task a supporting accompanying air flow with the most adapted Speed to produce the threads.
  • the rectangular cross section especially in connection with partitions between the individual Filament bundles, allows a more uniform cooling of all Individual filaments of the filament bundle than, for example, an oval one Cross-section. It is basically the same where and how the rejuvenation takes place.
  • the first part of the shaft (A) remain constant in width so that the individual filament bundles can be deducted in parallel and under the same conditions. This can by additional fenders between each Spinneret positions are still supported.
  • shaft B has to be wound up together slightly tapered in depth or strongly tapered Cross-section.
  • shaft B For individually wound, arranged side by side The width of the chute B remains unchanged over the bundles of filaments total shaft height and opposite shaft A.
  • the depth of shaft B should be dimensioned at the lower end so that on the one hand false air and Turbulence is prevented, but on the other hand touching the Shaft walls through the filaments are excluded. This will due to a slight inclination of the front and / or rear wall of the Shaft B reached according to a slight taper. at a bundle of filaments to be wound up is additionally carried out lateral tapering of the shaft B, so that the threads save space can be continued.
  • this second Shaft (B) Shortly before the end of this second Shaft (B), the air is extracted, taking the air can be traced back to the spinning position to already tempered (because it was driven in a circle) to be reinserted close to the thread. If necessary, additional air volumes are through the upper open gap sucked in between the spinneret units and the first shaft (A). At the The transition from the second shaft (B) to the end shaft (C) can be further Thread guide be attached.
  • the idea of the invention further assumes that the solidified Thread from the winding machine with constant, high Speed is subtracted automatically around you moving air jacket. This drag air cannot prevent but be used. So instead of narrowing the thread exit and the Extracting all air from the duct is invented suggested that after exiting the shaft (B) in the Cross section constant, but very tight end shaft (C) connect in which the threads should remain as long as possible. The not only does this prevent constant air flow Inflow of false air, but still supported by the The aforementioned drag air pulls the suction on the air inflow and relieves it the cost of generating suction air.
  • a process structure according to the invention is purely schematic shown.
  • the width of the first shaft (A) is constant, i. H. the two side walls (4) are straight and parallel to each other executed, and the taper takes place only through the front and back walls (5a, 5b) of the shaft.
  • the thread path (3a) is easily out of the Vertically clamped so that the start-up in the preparation oiler (6) can be guaranteed.
  • Front and rear wall (5a, 5b) of the shaft are inclined evenly towards the middle of the thread, so that the bevel must be done asymmetrically.
  • the individual are on the right in the view Fenders or partitions (7) shown the identical conditions between the individual filament bundles (3a) in this area subtracted parallel to each other.
  • the preparation oilers (6) which are for different titers must be adjustable in height, and then the first thread guides (8) directly before the transition to the next one Shaft (B) housed. Since the filament bundle (3) in the present Example wound separately, there is only a small one Tapering of the shaft B via its front and rear walls (9a, 9b). The width of the shaft (B), however, remains constant, the side walls (10) parallel to each other.
  • the air extraction (11) takes place shortly before the end of the second shaft (B) by means of a suction fan (11a), and the Air is then returned to the spinneret units (1) already tempered (because driven in a circle) close to the thread over one Blow ring (12) introduced and evenly on the Spinneret units (1) to be distributed. More air volumes will be at the upper open beginning of the first shaft (A) through the gap (13) sucked in if necessary. At the transition from the second shaft (B) to the End shaft (C) are attached to the second thread guides (14) can also be omitted if necessary. Basically, the Air extraction (11) also in the extraction direction further down from shaft C be made.
  • the shaft (C) is constant in cross section, but is kept very narrow, so the constant air flow created here the inflow of False air is prevented and extends until shortly before the first extraction godet (17) or in the case of spinning without godets until shortly before the next one Spinning element, for example the winder (2).
  • The is preferably Distance between filament bundles and the walls (15a, 15b) of Shaft (C) 1 to 4 cm.
  • Fig. 2 shows schematically the thread path (3a, 3) in one on the left conventional cooling shaft and the vertical speed curve of the total air, which is blown transversely downwards very slowly flows.
  • the filament speed is entered on the right in the diagram, the from the injection speed (V1) to the Winding speed (V2) increases in order to then remain constant. Nearly in parallel, the speed of the immediate accompanying air increases, generated only by the pull of the thread, its course.
  • FIG. 3 shows the schematic thread path on the left (3a, 3) in shaft A and B of a cooling system according to the invention and vertical speed curve of the guided in direct current Total air.
  • the extraction is forced into the vertical moving air due to the tapering of the cooling shaft A as a whole accelerated.
  • the speed course of the filament and the Speed of the direct accompanying air of the thread is in the Diagram shown on the right.
  • the thread (3a, 3) needs its immediate accompanying air not to accelerate as much as with conventional thread cooling. That is, the filament speed of the non-solidified polymer (3a) is not braked as much as usual in the prior art, and the Freezing point of the filaments or the first thread guide (8) lies further away from the spinneret unit (1). Through this gentle Elongation, in a longer period of time than usual, can cause Take-off speed can be increased without causing thread breakage.
  • the width of the first shaft (A) is constant and designed according to the spinning arrangement. Between each Filament bundles (3a) separating plates (7) are positioned so that for each of these bundles of threads (3a) the same space is available.
  • the height of the shaft (A) is usually 1.8 to max. Be 2.2 m, according to the level of the spinning platform.
  • the two side walls (4) are straight and parallel to each other and the taper of a total of 10 ° to max. 30 ° only overlaps laterally, the front and Rear wall (5a, 5b) of the shaft instead.
  • the front wall (5a) can be folded executed, the hinges of the hinged doors (19) for a vertical vertical opening are provided.
  • the doors (19) have in the area of Lubricator arrangement (6) Viewing window (20) for process monitoring on the lubricator (6) and first thread guide (8).
  • In the drawing is the left door (19) shown open.
  • the taper in the second shaft (B) is true freely selectable, but mostly on the side and as short as possible building so that the threads (3) can be carried on to save space, d. H. here the dimensioning results more or less from the structural conditions of the plant.
  • Air extraction (11) takes place shortly before the end of the shaft (B) via an adapted Pipe system.
  • the return of the air to the spinning position is here Not shown.
  • the subsequent end shaft (C) is in cross section kept constant, but it should be as tight as still manageable, and also be as long as possible.
  • a single door (21) is provided here, which extends into the area at the transition of the second shaft (B), so that the second thread guides (14) can be operated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Claims (10)

  1. Système de refroidissement de faisceaux de filaments, qui sont filés par fusion de polymère dans au moins deux unités (1) de filière disposées côte à côte et qui sont dévidés à une vitesse 1000 m/minute par un système de dévidage, les faisceaux de filaments étant refroidis par un courant d'air de même sens, caractérisé en ce que le système de refroidissement est constitué des parties suivantes :
    juste en-dessous des unités (1) de filière, de moyens (12, 13) d'apport d'air,
    venant ensuite, un puits A de section transversale rectangulaire, de largeur constante entre les parois (4) latérales du puits et de profondeur se rétrécissant dans la direction de dévidage entre la paroi avant et arrière (5a, 5b) du puits, les faisceaux (3a) de filaments étant dévidés en passant dans le puits A et étant guidés près de la sortie du puits A d'abord sur un lubrifieur de bobinage (6) et ensuite dans un premier guide fil (8),
    un puits B qui vient à la suite du puits A et qui a une section droite rectangulaire et une profondeur se rétrécissant dans la direction de dévidage et éventuellement une largeur qui se rétrécit, les faisceaux (3) de filaments étant dévidés dans le puits B,
    un puits C qui vient à la suite du puits B, qui a une section transversale rectangulaire constante et qui va jusque près du système (17) de dévidage, les faisceaux (3) de filaments étant envoyés par le puits C au système (17) de dévidage et
    près de la sortie du puits B, de moyens (11) d'évacuation d'air.
  2. Système de refroidissement suivant la revendication 1, caractérisé en ce qu'il est placé à l'intérieur du puits A, entre respectivement deux faisceaux (3a) de filaments, respectivement une cloison (7) qui s'étend sur toute la profondeur du puits A parallèlement à ces parois (4) latérales.
  3. Système de refroidissement suivant la revendication 1 ou 2, caractérisé en ce que les parois (5a, 5b) avant et arrière du puits A font entre elles un angle de 10 à 30°, les deux parois (5a, 5b) étant inclinées de manière égale par rapport à l'axe des faisceaux (3a) de filaments.
  4. Système de refroidissement suivant la revendication 3, caractérisé en ce que l'angle entre les parois (5a, 5b) avant et arrière peut être réglé de façon variable, le réglage s'effectuant de façon à ce qu'à l'intérieur du puits A la vitesse d'écoulement de l'air apporté augmente à peu près de la même façon que la vitesse des faisceaux (3a) de filaments.
  5. Système de refroidissement suivant l'une des revendications 1 à 4, caractérisé en ce que la distance entre les faisceaux (3) de filaments et les parois (15a, 15b, 16) du puits C est comprise entre 1 et 4 cm.
  6. Système de refroidissement suivant l'une des revendications 1 à 5, caractérisé en ce que la section transversale du puits B se rétrécit dans la profondeur et dans la largeur, les faisceaux (3) de filaments étant guidés près de la sortie du puits B par un deuxième guide-fil (14).
  7. Système de refroidissement suivant la revendication 6, caractérisé en ce que les parois (9a, 9b) avant et arrière du puits B font entre elles un angle de 2 à 30° et le deux parois (10) latérales font entre elles un angle de 30 à 120°.
  8. Système de refroidissement suivant l'une des revendications 1 à 7, caractérisé en ce que la paroi (5a) avant du puits A et/ou la paroi (15a) avant du puits C peuvent être ouvertes.
  9. Système de refroidissement suivant l'une des revendications 1 à 8, caractérisé en ce que le moyen d'apport d'air est constitué d'un intervalle (13) ouvert à l'air ambiant et disposé entre le puits A et les unités (1) de filière et le moyen d'évacuation d'air est constitué d'au moins un conduit (11) qui est en dérivation du puits B et qui a une soufflante (11a) d'aspiration.
  10. Système de refroidissement suivant la revendication 9, caractérisé en ce que le moyen d'apport d'air comprend, en outre, un anneau (12) d'insufflation débouchant dans l'intervalle (13) et entourant les au moins deux unités (1) de filière, l'air évacué au moyen de la au moins une soufflante (11a) d'aspiration étant retourné à l'anneau (12) d'insufflation et réparti uniformément sur les au moins deux unités (1) de filière.
EP00926823A 1999-04-08 2000-04-06 Systeme de refroidissement pour fils de filaments continus Expired - Lifetime EP1173634B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19915762 1999-04-08
DE19915762A DE19915762A1 (de) 1999-04-08 1999-04-08 Kühlsystem für Filamentbündel
PCT/EP2000/003067 WO2000061842A1 (fr) 1999-04-08 2000-04-06 Systeme de refroidissement pour fils de filaments continus

Publications (2)

Publication Number Publication Date
EP1173634A1 EP1173634A1 (fr) 2002-01-23
EP1173634B1 true EP1173634B1 (fr) 2004-06-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP00926823A Expired - Lifetime EP1173634B1 (fr) 1999-04-08 2000-04-06 Systeme de refroidissement pour fils de filaments continus

Country Status (5)

Country Link
US (1) US6652255B1 (fr)
EP (1) EP1173634B1 (fr)
AT (1) ATE268394T1 (fr)
DE (2) DE19915762A1 (fr)
WO (1) WO2000061842A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1762644A1 (fr) 2005-09-07 2007-03-14 Maschinenfabrik Rieter Ag Procédé et dispositif pour le filage au fondu de fils

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1582610A1 (fr) * 2004-03-25 2005-10-05 Maschinenfabrik Rieter Ag Refroidissement de fils de filaments
DE102009021117A1 (de) * 2009-05-13 2010-11-18 Oerlikon Textile Gmbh & Co. Kg Verfahren und Vorrichtung zum Schmelzspinnen und Abkühlen einer Vielzahl von Monofilamenten
CN108823665B (zh) * 2018-09-07 2023-12-22 闽江学院 一种带有可调聚冷板的自动化纺丝系统
DE102022003354A1 (de) 2022-09-12 2024-03-14 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zur Herstellung synthetischer Fäden

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US3551949A (en) 1968-11-15 1971-01-05 Monsanto Co Spinning chimney
US3611485A (en) 1968-12-30 1971-10-12 Monsanto Co Spinning chimney
BE757537A (fr) 1969-12-16 1971-03-16 Barmag Barmer Maschf Tunnel a fils
CA944913A (en) 1970-04-01 1974-04-09 Toray Industries, Inc. Apparatus and method for manufacturing continuous filaments from synthetic polymers
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DE7926583U1 (de) * 1979-09-17 1980-11-27 Karl Fischer Industrieanlagen Gmbh, 1000 Berlin Spinnvorrichtung zum spinnen von endlosen faeden
DE3414602C2 (de) * 1984-04-18 1991-10-24 Franz 5305 Alfter Fourné Fadenkühlschacht zum Abkühlen und Verfestigen schmelzgesponnener Fäden und Fadenbündel
JPS63165506A (ja) * 1986-12-25 1988-07-08 Toray Ind Inc 複数本の合成繊維の製造装置
WO1993002233A1 (fr) * 1991-07-23 1993-02-04 Barmag Ag Dispositif pour la fabrication d'un fil synthetique
US5688458A (en) 1992-03-18 1997-11-18 Maschinenfabrik Rieter Ag Method and device to manufacture synthetic endless filaments
DE4220915A1 (de) 1992-06-25 1994-01-05 Zimmer Ag Verfahren und Vorrichtung zur Herstellung synthetischer Endlosfilamente
DE4223198A1 (de) 1992-07-15 1994-01-20 Zimmer Ag Verfahren und Vorrichtung zur Herstellung synthetischer Endlosfilamente
MY115308A (en) * 1993-05-24 2003-05-31 Tencel Ltd Spinning cell
TW268054B (fr) * 1993-12-03 1996-01-11 Rieter Automatik Gmbh
EP0754790B1 (fr) * 1995-07-19 2006-10-04 Saurer GmbH & Co. KG Procédé et dispositif pour le chauffage d'un fil synthétique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1762644A1 (fr) 2005-09-07 2007-03-14 Maschinenfabrik Rieter Ag Procédé et dispositif pour le filage au fondu de fils

Also Published As

Publication number Publication date
US6652255B1 (en) 2003-11-25
DE50006689D1 (de) 2004-07-08
ATE268394T1 (de) 2004-06-15
EP1173634A1 (fr) 2002-01-23
WO2000061842A1 (fr) 2000-10-19
DE19915762A1 (de) 2000-10-12

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