WO2005040462A1 - Dispositif destine au filage de matieres formant des fils - Google Patents

Dispositif destine au filage de matieres formant des fils Download PDF

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Publication number
WO2005040462A1
WO2005040462A1 PCT/EP2004/010627 EP2004010627W WO2005040462A1 WO 2005040462 A1 WO2005040462 A1 WO 2005040462A1 EP 2004010627 W EP2004010627 W EP 2004010627W WO 2005040462 A1 WO2005040462 A1 WO 2005040462A1
Authority
WO
WIPO (PCT)
Prior art keywords
melt
plate
spinning
spinneret
electrical heating
Prior art date
Application number
PCT/EP2004/010627
Other languages
English (en)
Inventor
Lüder GERKING
Original Assignee
Gerking Lueder
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 Gerking Lueder filed Critical Gerking Lueder
Priority to DE212004000010U priority Critical patent/DE212004000010U1/de
Publication of WO2005040462A1 publication Critical patent/WO2005040462A1/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
    • D01D4/00—Spinnerette packs; Cleaning thereof

Definitions

  • the invention relates to a device for spinning materials forming threads, from melts or solutions at temperatures above the ambient temperature, according to the preamble of the main claim.
  • a fire hazard and evev explosion hazard sometimes exist with these media.
  • An air gap always exists between the spinneret to be heated and the heating housing in which it is installed, which accordingly needs to be overcome technically by way of an accordingly higher temperature of the heater housing, thus with more energy expense.
  • particularly large heat losses may also occur on account of the known chimney effects .
  • a direct heating of the spinnerets or spin packs by way of installing heating rods, so-called heating cartridges, perpendicularly from above into these nozzles at a certain distance from one another also exists.
  • the heating in this manner is unequal in a waved manner over the length of the spinnerets, which although capable of being alleviated by way of a suitably greater mass of the spinneret , however on account of this leads to an increased material expense and an extended pre-heat time of the spinneret before this may begin with the production.
  • the expense for the individually, perpendicularly introduced heating cartridges is also considerable.
  • melts or solutions with which the channels leading the melt or solutions (in the following only the term "melt” is used, which is also to include the solutions) , the distribution chambers and where appropriate also the individual spinning capillaries or nozzles with their fore-bores are uniformly heated without dissipating too much waste heat to the surroundings, and with which one may make do without special heating chambers.
  • the device comprises a spinneret with at least two plate-like parts arranged over one another, e.g. the lower part with the nozzles, and electrical heating conductors are arranged in the region of the boundary surface of the at least two plate-like parts in a manner such that they surround the distribution conduits and compensate heat losses to the outside, one achieves a uniform heating of the melt and essentially no waste heat is dissipated to the outside.
  • the distribution conduits comprise melt channels and at least one melt distribution space which are incorporated (machined) into at least one boundary surface, or are arranged in the region of the boundary surface.
  • the problem exists that dead corners arise in the spinneret where the melt does not flow or no optimal conduits with regard to flow technology having a uniform resistance and a uniform melt distribution are present. If the distribution conduits are provided in the region of the boundary surface of the second plate-like parts, then the melt conduits, disregarding the supply and discharge conduits, are completely accessible on manufacture and may thus be checked with regard to the nature of the surface and dead corners.
  • the electrical heaters are essentially applied parallel to the melt conduits or melt channels and melt distribution space and surround them in their entirety.
  • tubular heating conductors which are applied pressed into fittingly calibrated grooves or inserted into the grooves, wherein the grooves in the region of the respective boundary surfaces are incorporated (machined) into the plate-like part or parts.
  • the device according to the invention may be used with the methods and means as are disclosed in DE 199 29 709 CI and WO 02/05 2070 A2.
  • Fig. 1 a longitudinal section through a spinneret according to the invention, with a rectangular shape
  • Fig. 2 a cross section through the spinneret according to the invention, according to Fig. 1,
  • Fig. 4 the views of the upper and lower plates used for the spinneret, from below (Fig. 3) and from above (Fig. 4),
  • Fig. 5 a plan view of a further embodiment example of a spinneret for a wide thread curtain with several infeeds for the supply of melt.
  • the spinneret 1 shown in Fig. 1 is composed of several plates 4, 7, 12 arranged above one another, wherein the lower plate 12 forms the lower part of the spinneret with the nozzles.
  • a bore 3 is provided in the upper plate 4 and this is connected to a supply 2 of melt.
  • the bore 3 enters into melt channels 13, 13' which in the region of the boundary surface between the plates 4 and 7 on the one hand are incorporated into the surface of the plate and on the other hand in the surface of the intermediate plate 7.
  • they may either be incorporated into the lower side of the upper plate 4 or in the upper side of the intermediate plate 7, wherein however in this case they are open towards the boundary surface, i.e. are designed in a groove-like manner.
  • the groove may be semicircular, rectangular or profiled in another manner, and the surface of the respective other plate within this context remains unmachined which creates lower costs . Since the individual plate surfaces are completely accessible on manufacture and with a later disassembly, the particularly critical locations of the melt channels at their ends before entry into the supply conduits 6, 6' which pass perpendicularly through the intermediate plate 7 may be monitored in their shaping by way rounding-off and in their surface constitution on manufacture.
  • the spinneret's lower part 12 comprises a recess for accommodating a holed plate 9 with a multitude of perforating holes.
  • the supply conduits 6, 6' merge into a melt distribution space 8 which is arranged between the holed plate 9 as a surface of the spinneret's lower part 12 and the lower surface of the intermediate plate 7, i.e. in the region of the boundary surface between the two plate-like parts 7 and 12, wherein a melt sieve which is carried by the holed plate 9 and is indicated dashed by the reference numeral 10 is provided in the melt distribution space 8, which serves for filtering the melt and for increasing the pressure resistance for an improved distribution.
  • Spinning bores or nozzles 11 arranged in a row are machined into the spinneret's lower part 12, wherein a nozzle web 14 is formed on the spinneret's lower part 12 forming one piece, and contains the spinning bores 11 and at its lower end comprises the flow exit capillaries 16.
  • the spinning bores 11 may also be provided in the spinneret's lower part 12 in another manner. According to the subsequent method they may be arranged in several rows parallel to one another, but may also be arranged in a curved alignment.
  • Electrical heating conductors are provided in the region of the boundary surfaces between the upper plate 4 and the intermediate plate 7 or the intermediate plate 7 and spinneret's lower part 12, and these are formed as tubular heating bodies 23, 26 and are applied or pressed in the grooves 22, 25 machined in the surface of the plates 4, 12 respectively.
  • the electrical heating conductors or the tubular heating bodies 23, 26 surround the melt channels 13, 13' or the melt distribution chamber 8 in an essentially circular manner and are arranged essential parallel to them, wherein their elctrical connections to the outside are indicated in Figs. 3 and 4 at 24 and 28.
  • a plate carries the circulatory heating and the oppositely lying one likewise obtains its heat form here.
  • Several heating systems e.g. two for two plates may also be applied.
  • the design of the plate surfaces in its finished dimensional quality is essential for a sealing against leakage flows of the melt and for the heating of two plates with only one heating, so that the necessary pressure for sealing may be mustered by way of the screws of which only a few are shown here for the bores 27 in Fig. 3 envisaged for them for the plate 4.
  • the spinneret's lower part 12 without the holed plate 9 is shown in Fig. 4, wherein the spinning bores 11 arranged in a row may be recognised.
  • the melt is supplied to the upper plate 4 from an extruder or likewise via the melt supply conduit 2 through the bore 3, whereupon it flows in the melt channels 13, 13' to both ides in the direction of the arrows 5, 5' via the supply conduits 6, 6' into the melt distribution space 8 and reaches the spinning bores 11 via the melt sieve 10 and the holes of the holed plate, from whose flow exit capillaries 16 the respective melt threads exit.
  • a heating of the nozzle web 14 which contains the spinning bores is provided.
  • a heater pair 17, 17' is arranged on both sides of the web 14 which for example comprises heating cartridges.
  • the heating conductor 19 is located in the inside about which an insulation of lining material 20 and then an outer casing 21 is arranged, as may be recognised from Fig. 1.
  • the cartridge is fitted into a body 15 which conducts well, e.g. of copper.
  • Individual heating cartridges of a certain length may be applied behind one another in a stepped manner along the row(s) of spinning nozzles.
  • the electric current supply may be attached at the ends of the row of spinning bores, with more than two cartridges after another they may be led out in between. Should a lacking heating output between the cartridges unallowably compromise the supply of heat to the spinning bores here, the produced electrical heating output of the cartridges may be distributed unequally over the length, wherein an increase may be carried out at the location concerned.
  • the melt conduits 13, and 13' after the central supply through the bore 3 in Fig. 1 may also feed more than only two supply conduits 6 and 6' in Fig. 1 if the nozzle row is longer than about 40 - 50 cm, so that, as in Fig. 5 four of such supply conduits are here, which for example may be fed by a simple fourfold spinning pump.
  • the melt channels 13 and 13' may then be machined into the nozzle plates such that they are equally long in each case, even better that they have the same resistance taking diversions into account.
  • the outer ones are diverted directly onto the outer supply conduits 29 by way of a deflection section, and the inner two with roughly the same resistance in the straight paths are likewise led to the outside and then diverted inwards to the supply conduits 30 by way of equally large deflection sections.
  • the groove heaters 23 and 26 are located next to the melt channels 13 and heat these externally. For maintaining a constant melt temperature, the heater only needs to make up for the losses to the outside, where the spinneret is usefully insulated. With the supply of heat to the melt such as here at the nozzle web 14, one heats to a correspondingly greater extent. But here also the heaters 17, and 17' are usefully insulated to the outside which is not shown in detail in the Figs 1 to 4.
  • the flow exit capillaries 16 for the melts may of course also be arranged in circles instead of rows, irregularly or individually in so called spin packs, this is particularly the case if it is not nonwoven which is to be manufactured, but yarn.

Landscapes

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

Abstract

L'invention concerne un dispositif destiné au filage de matières formant des fils ou des filaments à partir de produits fondus ou de solutions à des températures supérieures à la température ambiante, comportant une filière qui comprend au moins deux parties semblables à des plateaux disposées l'une sur l'autre, au moins un orifice de distribution de produit fondu, des conduits de distribution destinés à la distribution du produit fondu, ainsi qu'une pluralité d'orifices de filage. Le dispositif comprend également, au niveau de la surface de séparation entre les deux parties semblables à des plateaux, des conducteurs de chauffage électriques disposés de manière à entourer les conduits de distribution et à compenser les pertes de chaleur vers l'extérieur.
PCT/EP2004/010627 2003-10-21 2004-09-16 Dispositif destine au filage de matieres formant des fils WO2005040462A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE212004000010U DE212004000010U1 (de) 2003-10-21 2004-09-16 Vorrichtung zum Spinnen von Fäden bildenden Stoffen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10348865.0 2003-10-21
DE2003148865 DE10348865A1 (de) 2003-10-21 2003-10-21 Spinndüse mit innerer Heizung für Spinnvliese und Garne

Publications (1)

Publication Number Publication Date
WO2005040462A1 true WO2005040462A1 (fr) 2005-05-06

Family

ID=34484860

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/010627 WO2005040462A1 (fr) 2003-10-21 2004-09-16 Dispositif destine au filage de matieres formant des fils

Country Status (2)

Country Link
DE (2) DE10348865A1 (fr)
WO (1) WO2005040462A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104831367A (zh) * 2015-04-30 2015-08-12 中国纺织科学研究院 纤维素喷丝装置
CN107988636A (zh) * 2017-12-29 2018-05-04 江苏中奕复高新科技有限公司 碳纤维熔纺法纺丝喷丝头组件

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4365339A1 (fr) * 2022-11-02 2024-05-08 Trützschler Group SE Barre de filage pour la fabrication de filaments ou de fils filés au fondu

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1235338A (en) * 1967-08-29 1971-06-09 Du Pont Improvements in or relating to melt spinning assemblies
US4264555A (en) * 1978-08-30 1981-04-28 Dynamit Nobel Ag Process for production of monofilaments from polyvinylidene fluoride
JPS60139821A (ja) * 1983-12-28 1985-07-24 Katsutoshi Aoki 炭素繊維紡出装置
JPS6452824A (en) * 1987-05-26 1989-02-28 Petoca Ltd Melt spinning device for pitch
WO2000079034A1 (fr) * 1999-06-21 2000-12-28 Kimberly-Clark Worldwide, Inc. Ensemble filiere pour appareil de fusion-soufflage
WO2002052070A2 (fr) * 2000-12-22 2002-07-04 Gerking Lueder Procedes et dispositifs pour la production de filaments fins sensiblement continus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1235338A (en) * 1967-08-29 1971-06-09 Du Pont Improvements in or relating to melt spinning assemblies
US4264555A (en) * 1978-08-30 1981-04-28 Dynamit Nobel Ag Process for production of monofilaments from polyvinylidene fluoride
JPS60139821A (ja) * 1983-12-28 1985-07-24 Katsutoshi Aoki 炭素繊維紡出装置
JPS6452824A (en) * 1987-05-26 1989-02-28 Petoca Ltd Melt spinning device for pitch
WO2000079034A1 (fr) * 1999-06-21 2000-12-28 Kimberly-Clark Worldwide, Inc. Ensemble filiere pour appareil de fusion-soufflage
WO2002052070A2 (fr) * 2000-12-22 2002-07-04 Gerking Lueder Procedes et dispositifs pour la production de filaments fins sensiblement continus

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 301 (C - 316) 28 November 1985 (1985-11-28) *
PATENT ABSTRACTS OF JAPAN vol. 013, no. 249 (C - 605) 9 June 1989 (1989-06-09) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104831367A (zh) * 2015-04-30 2015-08-12 中国纺织科学研究院 纤维素喷丝装置
CN107988636A (zh) * 2017-12-29 2018-05-04 江苏中奕复高新科技有限公司 碳纤维熔纺法纺丝喷丝头组件

Also Published As

Publication number Publication date
DE10348865A1 (de) 2005-05-25
DE212004000010U1 (de) 2005-07-07

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