EP0122464B1 - Tête de filage pour le filage au fondu de filaments - Google Patents

Tête de filage pour le filage au fondu de filaments Download PDF

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Publication number
EP0122464B1
EP0122464B1 EP84102785A EP84102785A EP0122464B1 EP 0122464 B1 EP0122464 B1 EP 0122464B1 EP 84102785 A EP84102785 A EP 84102785A EP 84102785 A EP84102785 A EP 84102785A EP 0122464 B1 EP0122464 B1 EP 0122464B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
melt
spinning
pot
extension
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
Application number
EP84102785A
Other languages
German (de)
English (en)
Other versions
EP0122464A3 (en
EP0122464A2 (fr
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 EP0122464A2 publication Critical patent/EP0122464A2/fr
Publication of EP0122464A3 publication Critical patent/EP0122464A3/de
Application granted granted Critical
Publication of EP0122464B1 publication Critical patent/EP0122464B1/fr
Expired 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 in particular of thermoplastic polymers, with a heating box made of two mechanically independent components, each in the form of heating chambers, which are pressed with their opposing longitudinal walls against the contact surfaces of a nozzle housing between the heating chambers on both sides without play be, with an interchangeable 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, spinning 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 endless filaments made in particular of thermoplastic polymers which, while ensuring good heat transfer from the heating box to the nozzle assembly, enables the individual nozzle assemblies to be easily replaced from below.
  • 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 leads 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 two-part heating box consists of two mechanically independent and therefore relatively adjustable heating chambers, with the heating chamber, for example, which houses the installation of the melt feed, the metering pumps and drives, the pump block, etc., being fixed in place.
  • the nozzle packs or the nozzle housings receiving the nozzle packs are installed with their lateral contact surfaces between the longitudinal walls of the two heating chambers which are at a distance from one another and are pressed on from both sides without play. Despite the unavoidable manufacturing tolerances and thermal expansion of the components, this enables a large-area, metallic contact of the heat transfer surfaces.
  • the longitudinal walls of the heating chambers, between which the nozzle housings rest without play, are machined as flat contact surfaces with a high surface quality and low surface roughness, so that the heat conduction from the walls of the heating chambers into the nozzle housing is favored.
  • the nozzle housing is designed as a heat-conducting block and is equipped with right-angled, plane-parallel side walls.
  • the play-free pressing of the two heating chambers with the nozzle housings in between takes place, for example, by connecting elements such as tie rods, stud bolts, tension spindles or the like which are stressed and which are advantageously inserted through transverse bores between the nozzle packs for mounting the nozzle housings. They are provided in such a number that sufficient surface pressure on the nozzle housings is ensured. With such a configuration, the entire heating box can essentially remain 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. In particular, 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.
  • Fig. 1 is a spinning head for the production of threads from thermoplastic polymers by the melt spinning process in cross section posed.
  • 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 can be exchangeably fastened to the heating chamber 2, possibly as a component, so that when changing the spinning program, for example multiple or bicomponent spinning, by exchanging for a corresponding component that has essentially the same external dimensions , the conversion can be carried out quickly and easily.
  • the pump drive shafts can be guided through the cavity of the heating chamber to the outside, for example, through insert sleeves in a pressure-tight manner.
  • 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 present as 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 preferably fixed heating chamber 2, in which case reinforcing eyes or the like are expediently provided. Possibly. They can also be screwed or cast into heat-conducting blocks which are firmly connected to the heating chamber 2 if the latter 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 in 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 take place in a different way, as long as it is only ensured that both are heated to essentially the same temperature and remain at this temperature.
  • Fig. 2 shows in detail 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 Through holes 29 are transverse bores 30 through which the tie rods or tension 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.
  • a sealing membrane 35 which rests with its top 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.
  • 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 unchanged connected to the heating chambers 2 and 3 when the nozzle packs 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.

Claims (2)

1. Tête de filage pour le filage par fusion de fils sans fin en polymères, en particulier thermoplastiques, comprenant un caisson de chauffage constitué de deux éléments mécaniquement indépendants qui sont respectivement réalisés sous la forme de chambres de chauffage (2, 3) et qui sont appliqués sans jeu des deux côtés par leurs parois longitudinales opposées (9, 14) contre les surfaces d'appui d'une boîte à filières (27) située entre les deux chambres de chauffage (2, 3), un paquet de filières interchangeables (1) étant logé dans la boîte à filières, caractérisée par le fait que la boîte à filières (27) est un parallélépipède comportant des trous de passage cylindriques (29), que dans les trous de passage cylindriques (29) est respectivement placé un pot à filières (38) destiné à recevoir le paquet de filières (1), qu'au-dessus de la boîte à filières (27) est installé un bloc distributeur (31) de masse fondue pourvu d'un appendice (32) lequel fait saillie vers le bas et contient la conduite (13) amenant la masse fondue, que le pot à filières (38) est raccordé à l'appendice (32) par un filetage extérieur (33) de l'appendice (32) et un taraudage correspondant du pot à filières (38) ou par un assemblage à baïonnette, et que l'intérieur du pot à filières (38) est étanché vis-à-vis de l'appendice (32) par un piston (34) qui est mobile axialement dans le pot à filières (38) tout en assurant l'étanchéité (membrane 35) et qui est appliqué contre un joint (36) entourant la conduite (13) de l'appendice (32) par la pression régnant à l'intérieur du pot à filières (38).
2. Tête de filage selon la revendication 1, caractérisée par le fait que la boîte à filières 27 comporte des perçages transversaux (30) en vue de sa fixation sur les chambres de chauffage (2, 3) 'au moyen de raccords à vis (16).
EP84102785A 1983-03-23 1984-03-14 Tête de filage pour le filage au fondu de filaments Expired EP0122464B1 (fr)

Applications Claiming Priority (2)

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

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP88102682.7 Division-Into 1984-03-14

Publications (3)

Publication Number Publication Date
EP0122464A2 EP0122464A2 (fr) 1984-10-24
EP0122464A3 EP0122464A3 (en) 1985-05-02
EP0122464B1 true EP0122464B1 (fr) 1988-11-09

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 After (1)

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

Country Status (3)

Country Link
US (1) US4645444A (fr)
EP (2) EP0122464B1 (fr)
DE (2) DE3485710D1 (fr)

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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
EP0828017B1 (fr) * 1996-09-04 2001-11-28 B a r m a g AG Bloc de filage
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
JP2005504191A (ja) * 2001-09-28 2005-02-10 ザウラー ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト 紡糸ノズル
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

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DE1246221B (de) * 1964-12-17 1967-08-03 Vickers Zimmer Ag Planung Duesenanordnung fuer das Extrudieren von Kunststoffschmelzen und -loesungen
GB1350496A (en) * 1971-09-14 1974-04-18 Ici Ltd Melt spinning apparatus
US3891379A (en) * 1972-10-05 1975-06-24 Barmag Barmer Maschf Spinning head with an exchangeable, self-sealing nozzle assembly

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Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123858A (en) * 1964-03-10 Heated
DE1246221B (de) * 1964-12-17 1967-08-03 Vickers Zimmer Ag Planung Duesenanordnung fuer das Extrudieren von Kunststoffschmelzen und -loesungen
GB1350496A (en) * 1971-09-14 1974-04-18 Ici Ltd Melt spinning apparatus
US3891379A (en) * 1972-10-05 1975-06-24 Barmag Barmer Maschf Spinning head with an exchangeable, self-sealing nozzle assembly

Also Published As

Publication number Publication date
DE3485710D1 (de) 1992-06-11
EP0300120B1 (fr) 1992-05-06
EP0300120A2 (fr) 1989-01-25
EP0300120A3 (en) 1989-09-06
DE3475083D1 (en) 1988-12-15
EP0122464A3 (en) 1985-05-02
EP0122464A2 (fr) 1984-10-24
US4645444A (en) 1987-02-24

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