EP0300120B1 - Filière pour le filage au fondu de filaments - Google Patents

Filière pour le filage au fondu de filaments Download PDF

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Publication number
EP0300120B1
EP0300120B1 EP88102682A EP88102682A EP0300120B1 EP 0300120 B1 EP0300120 B1 EP 0300120B1 EP 88102682 A EP88102682 A EP 88102682A EP 88102682 A EP88102682 A EP 88102682A EP 0300120 B1 EP0300120 B1 EP 0300120B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
die
melt
heating
attachment
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
EP88102682A
Other languages
German (de)
English (en)
Other versions
EP0300120A2 (fr
EP0300120A3 (en
Inventor
Erich Dr.-Ing. Lenk
Max Feth
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
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 filed Critical Barmag AG
Publication of EP0300120A2 publication Critical patent/EP0300120A2/fr
Publication of EP0300120A3 publication Critical patent/EP0300120A3/de
Application granted granted Critical
Publication of EP0300120B1 publication Critical patent/EP0300120B1/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
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes
    • 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 spinning head for melt spinning endless threads made of, in particular, thermoplastic polymers with a heating box, the heating chambers of which, with their opposing longitudinal walls, bear on both sides of the contact surfaces of a nozzle housing located between the heating chambers, an exchangeable nozzle package being accommodated in the nozzle housing.
  • Threads in the sense of this application are understood to mean endless, linear structures which are continuously pressed out of spinneret plates and can be present, for example, as monofilaments or multifilaments, as ribbons, strands, bristles, spun cables or the like.
  • Known spinner heads have interchangeable nozzle packs which are heatably inserted in corresponding nozzle housings in recesses in a closed heating box and whose melt inlet channel is sealed against the melt source under the action of a tension or compression screw.
  • the nozzle plates can have different hole patterns.
  • GB-A 1,350,496 relates to a spinning head for threads or fibers made of fiber-forming, synthetic polymers, in which the nozzle housing can be clamped between two parallel walls of a heating box which are movable relative to one another.
  • the invention has for its object to provide a spinning head for melt spinning continuous filaments made in particular of thermoplastic polymers, which allows easy replacement of the individual nozzle packs from below while ensuring good heat transfer from the heating box to the nozzle pack.
  • the nozzle housing is a cuboid with cylindrical through-holes, that in the cylindrical through-holes a nozzle pot is provided for receiving the nozzle package, that a melt distributor block with a downwardly projecting attachment is attached above the nozzle housing , which includes the melt line, that the nozzle pot is connected to the neck by an external thread of the neck and a corresponding internal thread of the nozzle pot or bayonet fitting, and that the inside of the nozzle pot is sealed from the neck by a piston which is sealed axially in the nozzle pot is movable and is pressed as a result of the pressure prevailing in the interior of the nozzle pot against a seal surrounding the melt line of the attachment.
  • the entire heating box can remain essentially assembled when the spinning program etc. is changed, which is advantageous, for example, with regard to the devices for the heating, the external heat insulation and the like, and facilitates the assembly work.
  • the spinner head construction according to the invention it is possible with the spinner head construction according to the invention to remove the nozzle packs for cleaning or inspection purposes without changing the nozzle housing.
  • a spinning head for the production of threads from thermoplastic polymers by the melt spinning process is shown in cross section.
  • a plurality of nozzle packs 1 are arranged side by side in a row; in the longitudinal direction they form a spinning beam that can be expanded as required.
  • the spinning beam comprises a heating box consisting of two mechanically independent heating chambers 2, 3; To avoid heat loss and to protect the operating personnel, it is surrounded by an insulating jacket (not shown) which only widens an opening in the area of the nozzle plates 5 of the nozzle packs 1.
  • the heating box is, for example, essentially U-shaped, it can be supplemented by heat-conducting blocks in such a way that a heating box is formed which surrounds the other assemblies of the spinning beam and which ensures uniform heating of all components carrying the melt on all sides.
  • the heating box has a first heating chamber 2, which has a cavity for receiving the heat transfer medium and which, for example, can also have an L shape in cross section instead of the one shown. It is surface-machined on its contact surface 9, which extends over the length of the spinning beam, in such a way that a large-area, metallic contact with the melt-carrying components and possibly the heat-conducting blocks is created.
  • the metering pump and the pump block with the melt distribution can be exchangeably fastened, if necessary as a module, so that when changing the spinning program, for example multiple or bicomponent spinning, by exchanging for a corresponding module that has essentially the same external dimensions , the conversion can be carried out quickly and easily.
  • the pump drive shafts can be guided pressure-tight through the cavity of the heating chamber to the outside, for example by insert bushings.
  • the melt is fed to the metering pumps through melt channels (not shown in more detail).
  • the second part of the heating box which is mechanically independent of the first heating chamber 2, comprises the heating chamber 3, which is also designed as an elongated, essentially rectangular hollow profile.
  • the longitudinal walls 9 and 14 of the two heating chambers 2 and 3 form contact heating surfaces for the plane-parallel housing walls of the nozzle housing 27 and are in the form of flat surfaces which extend over the entire length of the heating chambers 2, 3. They are machined with a high surface quality and low surface roughness in order to achieve a large-area, metallic system and thus good heat transfer to the nozzle housing 27.
  • the two heating chambers 2, 3 are pressed with their longitudinal walls 9, 14 by screw connections 16 without play against the nozzle housings 27 receiving the nozzle packs 1.
  • the tie rods or stud bolts 16 can also be screwed continuously into the heating chamber 2, which is preferably arranged in a stationary manner, in which case reinforcing eyes or the like are then expediently provided. Possibly. you can also use the heating chamber 2
  • Permanently connected heat-conducting blocks can be screwed in or cast in if this has a horizontal leg which is designed as a flat plate for the simplified processing of its contact surface. The heat-conducting blocks are then fastened, for example, to the horizontal leg of the heating chamber 2.
  • the tie rods 16 run through clamping bushes 28 which are present in the heating chamber 3 and are sealed off from the outside at approximately uniform intervals in accordance with the division of the nozzle packs.
  • the heating of the two heating chambers 2, 3 is carried out by a liquid or vaporous heat transfer medium according to the process engineering requirements of the polymer to be spun.
  • a condensable, organic heat transfer medium such as diphenyl, is preferably used and the saturated steam temperature is regulated via the assigned saturated steam pressure.
  • Both heating chambers 2, 3 are connected in parallel with respect to their heating and are supplied with saturated steam by a common steam generator.
  • a flexible line (metal hose, compensator line or the like) is preferably used to connect the inlet ports of the heating chambers 2, 3, through which changes in the distance between the heating chambers 2, 3 can be easily compensated for when converting the spinning beam.
  • a condensate drain also not shown, from which the condensate is discharged via a flexible line connecting the two outlet ports to the condensate collecting vessel.
  • the nozzles can be connected laterally or at the top or bottom if this appears expedient for the assembly of several spinning heads to form a spinning beam.
  • the heating of the two heating chambers 2, 3 can also be done in a different way take place as long as it is only ensured that both are heated to substantially the same temperature and remain at this temperature.
  • Fig. 2 shows a detail of the top view of the nozzle housing 27 for receiving several pot nozzles.
  • the nozzle housing 27 is clamped by screw connections 16 between the flat, mutually facing contact surfaces 9, 14 of the mechanically separated heating chambers 2, 3.
  • the spinning beam thus consists of the two side parts designed as heating chambers 2, 3, which are screwed together by tie rods 16.
  • Clamping bushings 28 are welded into both side parts so that the cavities of the heating chambers do not deform when they are clamped with the nozzle housings 27.
  • the nozzle housing 27, which is shown in plan view in FIG. 2, consists of a cuboid, into which through holes 29 are made at intervals. Between the through holes 29 there are transverse bores 30 through which the tie rods or tie screws 16 are inserted when the nozzle housing 27 is assembled. Because of the high temperatures and the stress caused by the melt pressure during the operation of the spinning head, this fastening is given preference over a screwing of the nozzle housing 27 on both sides, in which the transverse bores are provided with a thread.
  • the nozzle packet 1 consists of a nozzle pot 38, in which the nozzle plate 5 is inserted and covered by the filter packet 39. on the outer edge of the nozzle plate 5 sits a sealing membrane 35 which rests with its upper side against a piston 34 which is axially movable in the nozzle cup 38. The piston 34 in turn borders with its surface on the distributor block 31 and is separated from it by a seal 36.
  • the distributor block 31 has an extension 32 with an external thread 33 that contains the melt line 13.
  • the nozzle pot 38, and thus the nozzle packet 1 can be screwed onto the attachment 32 with a corresponding internal thread.
  • Other types of fastening such as a bayonet lock or the like, can also be used. It is only necessary to ensure a good seal between the distributor block 31 and the nozzle package 1.
  • the melt metering pump is finally attached to the distributor block 31.
  • the insulating jacket and the connecting lines as well as the other devices for heating the heating chambers 2, 3 have been omitted. However, it is understood that these are present.
  • the advantage of the spinning head or spinning beam construction described is that the pot-shaped nozzle packs 1 can be easily removed and replaced without the heating box having to be disassembled at the same time; the nozzle housings 27 clamped by the screw connections 16 between the contact surfaces 9, 14 remain connected to the heating chambers 2 and 3 unchanged when the nozzle packages 1 are changed.
  • the screw connections 16 are only loosened and, for example, the entire melt-carrying components, including the nozzle housing, are successively removed upwards if a conversion, if necessary, with replacement of the nozzle housing 27.
  • the spinning head according to the invention therefore has, in addition to the great technological advantages associated with good heat transfer, great advantages for both the manufacturer and the chemical fiber producer as a user because of its high flexibility with regard to assembly and maintenance.

Landscapes

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

Claims (1)

  1. Filière pour le filage à chaud de filaments sans fin, en particulier en polymères thermoplastiques, comportant un boîtier de chauffage dont les chambres de chauffage (2, 3) sont appliquées par leurs parois longitudinales (9, 14) situées face à face contre les surfaces de contact d'un boîtier de filière (27) disposé entre les chambres de chauffage, un jeu de buses (1) interchangeable étant logé dans le boîtier de filière (27), caractérisé en ce que le boîtier de filière (27) est un parallélépipède muni de trous de passage cylindriques (29), en ce qu'il est prévu chaque fois, dans les trous de passage cylindriques (29), un porte-buse (38) recevant le jeu de buses (1), en ce qu'un élément de répartition de la masse en fusion (31) comportant un bossage (32) qui fait saillie vers le bas et qui contient le conduit pour la masse fondue (13) est monté au-dessus du boîtier de filière (27), en ce que le porte-buse (38) est relié au bossage (32) par l'intermédiaire d'un filetage mâle du bossage (32) et d'un taraudage correspondant du portebuse (38) ou par l'inermédiaire d'une fermeture à baïonnette, en ce qu'un piston (34) assure l'étanchéité entre l'intérieur du porte-buse (38) et le bossage (32), lequel piston peut se déplacer axialement avec étanchéité (membrane 35) à l'intérieur du porte-buse (38) et est pressé par la pression régnant à l'intérieur du porte-buse (38) contre un joint (36) qui entoure le conduit pour la masse en fusion (13) du bossage.
EP88102682A 1983-03-23 1984-03-14 Filière pour le filage au fondu de filaments Expired - Lifetime EP0300120B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3310521 1983-03-23
DE3310521 1983-03-23

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP84102785.7 Division 1984-03-14

Publications (3)

Publication Number Publication Date
EP0300120A2 EP0300120A2 (fr) 1989-01-25
EP0300120A3 EP0300120A3 (en) 1989-09-06
EP0300120B1 true EP0300120B1 (fr) 1992-05-06

Family

ID=6194398

Family Applications (2)

Application Number Title Priority Date Filing Date
EP84102785A Expired EP0122464B1 (fr) 1983-03-23 1984-03-14 Tête de filage pour le filage au fondu de filaments
EP88102682A Expired - Lifetime EP0300120B1 (fr) 1983-03-23 1984-03-14 Filière pour le filage au fondu de filaments

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP84102785A Expired EP0122464B1 (fr) 1983-03-23 1984-03-14 Tête de filage pour le filage au fondu de filaments

Country Status (3)

Country Link
US (1) US4645444A (fr)
EP (2) EP0122464B1 (fr)
DE (2) DE3475083D1 (fr)

Families Citing this family (30)

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Publication number Priority date Publication date Assignee Title
DE3642867A1 (de) * 1986-12-16 1988-06-30 Barmag Barmer Maschf Spinnanlage
US5051088A (en) * 1988-04-11 1991-09-24 Hoechst Celanese Corporation Melt spinning machines
KR930012184B1 (ko) * 1989-11-27 1993-12-24 바마크 악티엔 게젤샤프트 용융 방사장치
US5145689A (en) * 1990-10-17 1992-09-08 Exxon Chemical Patents Inc. Meltblowing die
DE4224652C3 (de) * 1991-08-06 1997-07-17 Barmag Barmer Maschf Spinnvorrichtung zum Schmelzspinnen insbesondere thermosplastischer Mehrkomponentenfäden
DE4236570A1 (fr) * 1991-12-06 1993-06-09 Akzo N.V., Arnheim/Arnhem, Nl
IT1252555B (it) * 1991-12-19 1995-06-19 Savio Spa Perfezionamento nel blocco di un insieme di teste di filatura per un loro riscaldamento uniforme
DE4239560C2 (de) * 1992-11-25 2003-04-30 Zimmer Ag Düsenblock
IT1272396B (it) * 1993-05-04 1997-06-23 Savio Spa Blocco di filatura perfezionato
US5527178A (en) * 1993-05-24 1996-06-18 Courtaulds Fibres (Holdings) Limited Jet assembly
CH688044A5 (de) * 1993-06-21 1997-04-30 Rieter Automatik Gmbh Spinnbalken zum Schmelzspinnen endloser Faeden.
US5601856A (en) * 1993-09-08 1997-02-11 Rieter Automatik Gmbh Spinning beam
US5478224A (en) * 1994-02-04 1995-12-26 Illinois Tool Works Inc. Apparatus for depositing a material on a substrate and an applicator head therefor
IT1276034B1 (it) * 1994-11-10 1997-10-24 Barmag Barmer Maschf Traversa di filatura per la filatura di una pluralita' di fili sintetici e procedimento per la sua produzione
DE19500502A1 (de) * 1995-01-10 1996-07-11 Hoechst Ag Spinnblock für Schmelzspinnanlagen enthaltend eine Heizeinrichtung zur Beheizung eines mehrteilig zusammengesetzten Spinnblocks
DE19607103B4 (de) * 1996-02-24 2006-01-26 Zimmer Ag Spinnpack mit Sandfilter
US6680021B1 (en) 1996-07-16 2004-01-20 Illinois Toolworks Inc. Meltblowing method and system
US5902540A (en) * 1996-10-08 1999-05-11 Illinois Tool Works Inc. Meltblowing method and apparatus
DE59705514D1 (de) * 1996-09-04 2002-01-10 Barmag Barmer Maschf Spinnbalken
US5866050A (en) * 1997-02-06 1999-02-02 E. I. Du Pont De Nemours And Company Method and spinning apparatus having a multiple-temperature control arrangement therein
US5882573A (en) * 1997-09-29 1999-03-16 Illinois Tool Works Inc. Adhesive dispensing nozzles for producing partial spray patterns and method therefor
US6051180A (en) * 1998-08-13 2000-04-18 Illinois Tool Works Inc. Extruding nozzle for producing non-wovens and method therefor
US6200635B1 (en) 1998-08-31 2001-03-13 Illinois Tool Works Inc. Omega spray pattern and method therefor
US6290483B1 (en) 1999-10-06 2001-09-18 Robert Reiser & Co., Inc. Apparatus for food extrusion
US6602554B1 (en) 2000-01-14 2003-08-05 Illinois Tool Works Inc. Liquid atomization method and system
EP1440188B1 (fr) * 2001-09-28 2006-11-02 Saurer GmbH & Co. KG Filiere
USD550261S1 (en) 2006-12-13 2007-09-04 Nordson Corporation Adhesive dispensing nozzle
US7798434B2 (en) * 2006-12-13 2010-09-21 Nordson Corporation Multi-plate nozzle and method for dispensing random pattern of adhesive filaments
US8074902B2 (en) * 2008-04-14 2011-12-13 Nordson Corporation Nozzle and method for dispensing random pattern of adhesive filaments
USD588617S1 (en) 2008-04-14 2009-03-17 Nordson Corporation Nozzle assembly

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US4413968A (en) * 1982-03-11 1983-11-08 Thiokol Corporation Extrusion die metering device
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US4494921A (en) * 1983-08-08 1985-01-22 E. I. Du Pont De Nemours And Company Filter element

Also Published As

Publication number Publication date
EP0122464A3 (en) 1985-05-02
DE3475083D1 (en) 1988-12-15
EP0122464B1 (fr) 1988-11-09
EP0300120A2 (fr) 1989-01-25
DE3485710D1 (de) 1992-06-11
EP0122464A2 (fr) 1984-10-24
EP0300120A3 (en) 1989-09-06
US4645444A (en) 1987-02-24

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