EP0549763B1 - Vorrichtung zur herstellung eines synthetischen fadens - Google Patents

Vorrichtung zur herstellung eines synthetischen fadens Download PDF

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Publication number
EP0549763B1
EP0549763B1 EP92915061A EP92915061A EP0549763B1 EP 0549763 B1 EP0549763 B1 EP 0549763B1 EP 92915061 A EP92915061 A EP 92915061A EP 92915061 A EP92915061 A EP 92915061A EP 0549763 B1 EP0549763 B1 EP 0549763B1
Authority
EP
European Patent Office
Prior art keywords
filaments
air
plates
air deflecting
yarn
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
EP92915061A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0549763A1 (de
Inventor
Martin Zingsem
Detlev Schulz
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 EP0549763A1 publication Critical patent/EP0549763A1/de
Application granted granted Critical
Publication of EP0549763B1 publication Critical patent/EP0549763B1/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
    • D01D5/088—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 producing a synthetic thread according to the preamble of claim 1.
  • a device for producing a synthetic thread according to the preamble of claim 1.
  • Synthetic threads can be obtained by assembling a plurality of filaments extruded from a spinneret. It is customary to cool the filaments emerging from the spinneret in the liquid state in order to solidify the thermoplastic material from which they consist, with cooling air, then to assemble them and finally to wind them up into a coil. If necessary, the filaments, while they are put together to form a thread, are treated in a suitable finishing device with a preparation in the sense of a textile finishing.
  • the filaments pass through a tube or a box immediately below the spinneret, with cooling air flows directed transversely onto the filament bundle.
  • These cooling air flows can be generated by applying an air overpressure outside the pipe or box.
  • the tube or box it is also possible for the tube or box to be porous and for ambient air to surround the tube or box with atmospheric pressure. In this case, the high filament speed in the box or tube creates a negative pressure, so that atmospheric air is sucked in and as Cooling air jet is directed across the filament bundle.
  • the so-called microfibers can be obtained, which are understood to be spun threads whose filaments have a diameter of approximately 6 to 12 microns after the spinning delay.
  • the extremely fine filaments for micro threads are particularly prone to failure when cooled with cooling air, i.e. u. a. that their Uster values are adversely affected by turbulence that may occur in the blow box.
  • the invention is therefore based on the object to provide a device in which, on the one hand, the disruptive influences - possibly caused by the running thread of air turbulence in the blow box - on the spun filaments and, on the other hand, the otherwise required length of the technical threads between the spinneret and the winding station Wegs can be shortened by improved air cooling in the thread shaft.
  • sheet metal is understood to be any thin body with a large width and length.
  • the device described in claim 3 is more effective, on the one hand, to strip off the warm air surrounding the filaments and, on the other hand, to keep the turbulence prevailing in the blow box from the filaments.
  • Claim 7 describes a device for connecting the components of the air deflection device according to the invention.
  • Claim 8 describes a particularly advantageous design of the air deflection device, which enables the threads or filaments to be introduced into the air deflection device.
  • the device described in claim 9 achieves protection of the filaments or the thread in a location of the cooling device which is particularly at risk of turbulence.
  • Claims 12 to 17 relate to particularly advantageous finishing devices in connection with the air deflection device according to the invention.
  • Claim 17 presents a device which has proven itself in connection with coarse-gauge technical threads (industrial yarns) as a measure for reducing the thread shaft length or the path bridged by the thread between the spinneret and the winding device in conventional devices of comparable cooling capacity.
  • Claims 18 to 21 are directed to particularly advantageous embodiments of the device described in claim 17.
  • the devices for producing filaments 18 shown in FIGS. 1 to 3 are essentially of the same construction. This means that they have a blow box as a cooling section 10, in the upper part or ceiling of which a known nozzle packet 12 is inserted, the nozzle plate 14 of which is used for Melt spinning nozzle holes 16 usual.
  • the number of nozzle bores 16 may be between 50 and 200.
  • the nozzle bores 16 have a clear width, which is dimensioned such that, taking into account the flow rate passing through them, the melt and its viscosity are about 25 to 50 cm after the so-called "onion" filaments with diameters, ie titers, which form at the outlet opening of the nozzle Form values.
  • the filaments are usually made of thermoplastic, e.g. Polyester or polyamide, which is pressed in the molten state by an extruder, not shown, through a filter 20 through the openings 16.
  • the filaments 18 emerging from the openings 16 in the soft state are exposed to a stream of cold air for consolidation in the blow box.
  • the air flow may flow, for example, perpendicular to the drawing direction A in the drawing, that is to say cutting the filaments essentially vertically.
  • the air speed of the blown air flow can be between 0.1 and 0.6 m / s.
  • the filaments are combined in a manner known per se to form a bundle merging into a thread 24 and passed through an opening in the bottom 20 ′ of the blow box 10 which is coaxially opposite the spinneret 12.
  • the air deflection device according to the invention is fastened in the opening of the base 20 '. It consists of several sheets, for example three nested tubes 30, the exterior of which is connected to the bottom 20 'of the blow chamber 10 so that the device can be moved perpendicular to the bottom 20', as shown by the double arrow C.
  • the tubes preferably each have an axial length of 60 to 100 mm and are interleaved in such a way that the device has a total length, measured from the upper edge of the outer tube to the lower edge of the inner tube, of approximately 80 to 150 mm.
  • the diameter of the tubes can be between 10 to 30 mm, but may also be wider or smaller.
  • the nested tubes 30 are connected by webs 32 so that they form air gaps between them. As shown in Fig. 1, the tubes 30 are coaxial with one another and are offset in the axial direction so that their upper edges are each at the same distance from the filaments located outside in the filament bundle. Due to the vertical adjustability of the tubes, the distance between the filaments and the upper edges of the tubes can be adjusted as required.
  • the tubes keep the filaments in a relatively calm zone.
  • the tubes 30 are slotted.
  • the slots lie in the same longitudinal sectional plane and form a slot 36 through which the filaments can be introduced into a shaft 34 enclosed by the tubes 30.
  • the inner tube comprises an avivating device, which in the embodiment shown is formed by a ring 22 which is slotted like the tubes 30 for inserting the filaments 18.
  • the finishing device is used in a known manner to apply a preparation in the form of a liquid to the filaments, which is supplied via lines (not shown), and to combine the individual filaments in a thread 24.
  • the ring of the leveling device 22 can be replaced by conventional preparation pins or nozzles which interact with metering pumps.
  • the device shown in FIG. 2 differs in the shape of the tubes from the device shown in FIG. 1.
  • the air deflecting device according to FIG. 2 consists of three nested tubes, the upper and lower edges of which widen outwards in a funnel shape, these helping to an increased extent to prevent the undesirable turbulence from the filaments 18 and these through the tubes from the filaments to radially deflect stripped air from the filament bundle or from the assembled thread 24.
  • the device shown in Fig. 3 has nested sheets 30 which each have the shape of the lateral surface of a truncated cone.
  • the upper edge of the sheets lies closely against the outer filaments of the filament bundle and the lower edge is angled away from the filament bundle, so that an increased deflection of the air stripped from the sheets 30 is achieved.
  • the air deflecting devices according to FIGS. 2 and 3 can also be moved both in the axial direction of the filament bundle and pivotably to the latter, as indicated by the arrows C and D.
  • the cross-sectional profile of the tubes in the described embodiments advantageously corresponds to the cross-section of the bundle of filaments emerging from the spinneret bores.
  • the function of the series of tubes used in the exemplary embodiment as an air deflecting device is that the air emerging from the bundle is collected and discharged. It is avoided that the leaked air can impair the filament bundle due to turbulence and / or that it can hinder the air that continues to escape.
  • the device 38 shown in FIGS. 4 to 6 serves to strip the warm air surrounding the filaments 18 from them.
  • the shaft 40 consists of a housing 42 with a rectangular cross section, which tapers downwards. Two opposing walls 44 and 46 are penetrated by slots 48a to 48f lying parallel to one another, the length of which essentially corresponds to the width of the walls 44 and 46 and that in the opposing walls 44, 46 each in pairs inside the housing 42 at the same height lie.
  • the baffles 52a to 52f are articulated in such a way that they can be pivoted from their working position shown in full line to a position indicated by the broken line, which it enables filaments 18 to be passed through the chute 40 unhindered from the start of the machine.
  • the sheets 52 are preferably kinked at their edge remote from the hinge 50, in such a way that the kinked, narrow part of the edge is substantially parallel to and closely aligned with the thread 24. This part serves to strip the warm air from the filaments 18 moving in the direction of the arrow P and to lead it out of the housing 42 through the slot 48 on the other edge of the sheet 52.
  • the air supply openings 56 preferably lie under the sheet 52 lying in their working positions and supply the filaments 18 with comparatively cool air, which is stripped off by the next pair of sheets 52b and 52e lying in the thread running direction and discharged via slots 48b and 48e. In the embodiment shown, this process is repeated a total of three times, the air last supplied via the opening 56c being discharged with the cooled filaments 18 from the shaft 40 through an opening 58 located in the bottom thereof.
  • the exchange of the air surrounding the thread makes it possible to shorten the conventional length of the thread chute 40 without reducing its cooling capacity.
  • the aim of the invention on the one hand, to reduce the air turbulence possibly arising from the thread running and, on the other hand, to remove the warm air surrounding the thread, is advantageously achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
EP92915061A 1991-07-23 1992-07-21 Vorrichtung zur herstellung eines synthetischen fadens Expired - Lifetime EP0549763B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4124350 1991-07-23
DE4124350 1991-07-23
DE4201599 1992-01-22
DE4201599 1992-01-22
PCT/DE1992/000590 WO1993002233A1 (de) 1991-07-23 1992-07-21 Vorrichtung zur herstellung eines synthetischen fadens

Publications (2)

Publication Number Publication Date
EP0549763A1 EP0549763A1 (de) 1993-07-07
EP0549763B1 true EP0549763B1 (de) 1995-02-01

Family

ID=25905742

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92915061A Expired - Lifetime EP0549763B1 (de) 1991-07-23 1992-07-21 Vorrichtung zur herstellung eines synthetischen fadens

Country Status (7)

Country Link
US (1) US5433591A (zh)
EP (1) EP0549763B1 (zh)
KR (1) KR950013478B1 (zh)
CN (1) CN1028777C (zh)
DE (1) DE59201340D1 (zh)
TW (1) TW240254B (zh)
WO (1) WO1993002233A1 (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19535143B4 (de) * 1994-09-30 2006-02-16 Saurer Gmbh & Co. Kg Vorrichtung und Verfahren zur thermischen Behandlung von Fasern
DE19521466C2 (de) * 1995-06-13 1999-01-14 Reifenhaeuser Masch Anlage für die Herstellung einer Spinnvliesbahn aus thermoplastischen Endlosfäden
DE19915762A1 (de) * 1999-04-08 2000-10-12 Lurgi Zimmer Ag Kühlsystem für Filamentbündel
KR20030021619A (ko) * 2001-09-07 2003-03-15 주식회사 효성 폴리에스터 섬유의 제조방법
EP1582610A1 (en) * 2004-03-25 2005-10-05 Maschinenfabrik Rieter Ag Cooling filament yarns
EP2061919B1 (en) * 2006-11-10 2013-04-24 Oerlikon Textile GmbH & Co. KG Process and device for melt-spinning and cooling synthetic filaments
JP6069019B2 (ja) * 2013-02-19 2017-01-25 Ｔｍｔマシナリー株式会社 糸条冷却装置
CN104805513B (zh) * 2015-04-24 2017-02-01 光山县群力化纤有限公司 一种锦纶6纤维的生产方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747592C (zh) *
GB901398A (en) * 1960-05-19 1962-07-18 British Nylon Spinners Ltd Improvements in or relating to melt-spinning synthetic polymer filaments
GB1088240A (en) * 1965-08-20 1967-10-25 Ici Ltd Melt spinning of fibre-forming polymers
CH468482A (de) * 1967-05-01 1969-02-15 Inventa Ag Vorrichtung zur Verhinderung von Luftwirbelbildung im Spinnschacht
US3497586A (en) * 1968-01-04 1970-02-24 Fmc Corp Process and apparatus for melt spinning thermoplastic yarn
GB1220424A (en) * 1968-03-21 1971-01-27 Toray Industries Method and apparatus for melt-spinning synthetic fibres
SU461175A1 (ru) * 1970-11-24 1975-02-25 Предприятие П/Я А-3342 Устройство дл охлаждени синтетического волокна
US3672801A (en) * 1971-01-13 1972-06-27 Du Pont Spinning quench chamber having a conical flow director
SU492600A1 (ru) * 1974-07-23 1975-11-25 Всесоюзный Научно-Исследовательский Институт Машин Для Производства Синтетических Волокон Устройство дл охлаждени волокна выпр даемого из расплава
US4134882A (en) * 1976-06-11 1979-01-16 E. I. Du Pont De Nemours And Company Poly(ethylene terephthalate)filaments
US4332764A (en) * 1980-10-21 1982-06-01 Fiber Industries, Inc. Methods for producing melt-spun filaments
DE3406347A1 (de) * 1983-02-25 1984-10-11 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Spinnanlage fuer chemiefasern mit anblaskasten und spinnschacht
JPS59168112A (ja) * 1983-03-14 1984-09-21 Kuraray Co Ltd 合成繊維の溶融紡糸方法
JPS60134011A (ja) * 1983-12-22 1985-07-17 Toray Ind Inc 熱可塑性重合体の溶融紡糸方法および装置
DE8412111U1 (de) * 1984-04-18 1985-08-14 Fourné, Franz, 5305 Alfter Vorrichtung zum Führen der Kühlluft in Kühlschächten zum Abkühlen und Verfestigen schmelzgesponnener Fäden u. dgl.
US4687610A (en) * 1986-04-30 1987-08-18 E. I. Du Pont De Neumours And Company Low crystallinity polyester yarn produced at ultra high spinning speeds

Also Published As

Publication number Publication date
US5433591A (en) 1995-07-18
EP0549763A1 (de) 1993-07-07
CN1074250A (zh) 1993-07-14
KR950013478B1 (ko) 1995-11-08
CN1028777C (zh) 1995-06-07
WO1993002233A1 (de) 1993-02-04
KR930702563A (ko) 1993-09-09
DE59201340D1 (de) 1995-03-16
TW240254B (zh) 1995-02-11

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