EP1208250B1 - Self-sealing compact spinneret for a melt spinning process - Google Patents
Self-sealing compact spinneret for a melt spinning process Download PDFInfo
- Publication number
- EP1208250B1 EP1208250B1 EP00942123A EP00942123A EP1208250B1 EP 1208250 B1 EP1208250 B1 EP 1208250B1 EP 00942123 A EP00942123 A EP 00942123A EP 00942123 A EP00942123 A EP 00942123A EP 1208250 B1 EP1208250 B1 EP 1208250B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spinneret
- housing
- spinneret plate
- filter
- filter arrangement
- 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
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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
-
- 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
- D01D1/00—Treatment of filament-forming or like material
- D01D1/10—Filtering or de-aerating the spinning solution or melt
- D01D1/106—Filtering
-
- 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
- D01D4/08—Supporting spinnerettes or other parts of spinnerette packs
Definitions
- the invention relates to a spinneret for spinning thermoplastics with a central polymer melt inlet channel, one Filter arrangement consisting of one or more filter discs different filter fineness, a spinneret plate and one the filter assembly and the spinneret plate receiving and tight enclosing housing.
- a filter structure as z. B. from DE 29 26 533 C2 is known to use.
- a method is used in which the individual filter blanks are cold pressed together so that a much better filter effect is achieved than with the identical arrangement of loose filter discs.
- Such cold sintered Filters are provided with a seal and are from various providers under trade names such as "Porostar” or “Multipor” distributed. The seal surround is subject to the disadvantages previously described.
- the object of the present invention is to provide a spinneret Spinning thermoplastics to provide the mentioned disadvantages of both sand and Avoid seal surrounds.
- the spinneret should be as possible be compact.
- filter assemblies are cold-pressed together Filter discs, but without the conventional seal surround in the housing bore used as precisely as possible, the material the filter has a much higher coefficient of thermal expansion must have as the material of the housing. Sealing the Filters are built up at operating temperature through thermal expansion and that of the spinneret plate in any way.
- the spinneret plate be made of one material to produce with a high coefficient of thermal expansion and in one Use a hole that fits as precisely as possible in the housing. In this case the spinneret plate is sealed at operating temperature through thermal expansion.
- the filter arrangement can be in any Be constructed and made of one material with any Thermal expansion coefficient to be made.
- Both the filter are preferably cold-pressed together Filter discs as well as the spinneret plate made of materials with high Thermal expansion coefficients made and both parts in as possible precisely fitting holes made of a material with low Thermal expansion coefficient manufactured housing used.
- the spinneret plate is preferred in addition to the above precisely fitting seal seat in the lower half with a thread provided and screwed directly into the housing, the thread and the stop of the nozzle in the housing are equipped so that the Spinning hole pattern always comes in the same orientation. This ensures that when screwing in until it stops the filaments are correctly blown during spinning.
- the housing has a lower end protruding collar provided, the at least three grooves for receiving a tool for screwing in and out of the spinning system and which also protects the nozzle from harmful touches during handling protects.
- the filter insert according to the invention avoids the disadvantages of classic sand filtering and the elimination of conventional Seals bring significant cost savings and increased Tight security.
- Through the appropriate material and fit selection of Individual parts of the spinneret according to the invention have the sealing effect at operating temperature due to the increased expansion of the inner Components, filters and / or nozzle plate, opposite the outside Housing without the need for additional sealing elements.
- the short and compact design is also advantageous: Inexpensive production and easier handling with uniform and identical filtration from nozzle to nozzle.
- FIG. 1 is the representation of a Exemplary spinneret arrangement shows:
- a housing 1 lies cold-sintered filter 2, the structure of which for each Spinning process specifically selected individual layers of filter blanks different filter fineness exists on a spinneret plate 3.
- the spinneret plate is 3 attached by means of a thread in the housing 1.
- This thread in Housing 1 and on the spinneret plate 3 is designed so that when screwing in as far as it will go the spinning hole pattern always on the comes to the same place, so that the correct blowing of the Filaments is guaranteed during spinning.
- the connection to the Polymer melt is supplied via the connection seal 4 and (from not shown here) an adapter to the heating vessel (also Called spinning beam).
- the execution can be completely according to the requirements of the operator and adapted to his existing equipment.
- the housing 1 consists, for example, of material No. 1.4057 (according to the DIN steel key), a material with a relatively low Thermal expansion coefficient.
- the spinneret plate 3 can then be made Material no.1.4580 and filter assembly 2 from no.1.4301 or 1.4541 be made, all materials with a relatively high Thermal expansion coefficient.
- the fits are the dimensions and Materials selected accordingly so that the individual parts in the cold Condition easy to assemble and disassemble and one hand the sealing effect at the latest shortly before reaching the specified Spinning temperature takes place, and on the other hand the parts at elevated Cleaning temperature (approx. 450 ... 540 ° C) not due to overstretching To suffer damage.
- the desired self-sealing function in the operating state is without conventional seals through the targeted material pairing and Fit selection achieved:
- the four parts, housing 1, filter 2, Spinneret plate 3 and connection seal 4 are in the cold state assembled and then heated up as usual. Because of the different Thermal expansion causes the sealing effect and the nozzle can also any pressure can be spun.
- the outer housing 1 is there made of a material with a relatively low Coefficient of thermal expansion
- the inner parts, filter 2 and / or Spinneret plate 3 are made of materials with a higher Thermal expansion coefficient manufactured.
- the installation dimensions are like this chosen that the parts in the cold state (room temperature) slightly too are mounted, but at spinning operating temperature (approx. 300 ° C) by the different expansion self-sealing press fits between the parts. After the end of the spinning, the complete nozzle becomes one Subject to cleaning and dismantled only after cooling. After that can the spinneret plate 3 and the filter element 2 that so often how a filter candle can be used, further cleaned and be sonicated.
- the sealing principle outlined here by different Thermal expansion is not solely due to the spinneret and described Filter applications limited, but can be used anywhere wherever you want to filter, shear or spin, whether for microfibers, textile filaments, high-strength tire cord or other Applications. It remains the responsible product or Application specialist left to the design regarding the choice of cold sintered filter, materials and fits for its to determine a specific case or to determine it empirically.
Abstract
Description
Die Erfindung betrifft eine Spinndüse zum Verspinnen von Thermoplasten mit einem zentralen Polymerschmelzeeintrittskanal, einer Filteranordnung, bestehend aus einer oder mehreren Filterronden verschiedener Filterfeinheit, einer Spinndüsenplatte und einem die Filteranordnung und die Spinndüsenplatte aufnehmenden und eng umschließenden Gehäuse.The invention relates to a spinneret for spinning thermoplastics with a central polymer melt inlet channel, one Filter arrangement consisting of one or more filter discs different filter fineness, a spinneret plate and one the filter assembly and the spinneret plate receiving and tight enclosing housing.
Druckaufbau, Scherung und Filterung des zu verspinnenden Polymers in Spinndüsen wurde bisher üblicherweise durch eine Sandschüttung vorgenommen, wie sie z. B. in US-Patent 5 304 052 oder US-Patent 5 795 595 beschrieben wird. Diese Sandschüttungen, ob Stahl- oder echter Quarzsand, sind aber mit verschiedenen Nachteilen behaftet: Zum einen sind die Sandfüllungen selbst bei sorgfältigster Durchführung nicht von Düse zu Düse identisch, und zum anderen bestehen Handhabungsschwierigkeiten bezüglich der Befüllung mit Sand und des Transportes der gefüllten Spinndüsen. Außerdem können vereinzelte Sandkörner die internen Dichtungen in den Spinndüsen unwirksam machen. Diese Dichtungen, gebildet durch die Einfassungen der Siebfilter, bilden zu allem Überfluß durch ihre U-Form auch noch kleine Totzonen, d. h. in den u-förmigen Einfassungen wird der Austausch erschwert und es kommt dadurch zum Abbau des Polymers. Hinzu kommt der Kostenfaktor. Jedes Bauteil verursacht Kosten und Dichtungen verursachen sogar laufende Betriebskosten, weil sie nur einmal einsetzbar sind und bei jedem Düsenwechsel erneuert werden müssen. Auch gibt es keine absolute Dichtsicherheit, wie leider aus der Praxis bekannt ist, da sich Fertigungs- und Montagefehler mit steigender Anzahl der Einzelteile zwangsläufig erhöhen.Pressure build-up, shear and filtering of the polymer to be spun So far, spinning nozzles have usually been carried out by pouring sand made as z. B. in U.S. Patent 5,304,052 or U.S. Patent 5 795 595. These sand fillings, whether steel or real quartz sand, but have various disadvantages: On the one hand, the sand fillings are even with the most careful implementation not identical from nozzle to nozzle, and exist on the other Handling difficulties with the filling with sand and the Transporting the filled spinnerets. In addition, occasional Grains of sand render the internal seals in the spinnerets ineffective. These seals, formed by the sieve filters, to make matters worse, their U-shape also creates small dead zones, d. H. the exchange is made difficult and difficult in the U-shaped surrounds this leads to the degradation of the polymer. Then there is the cost factor. Every component causes costs and seals even cause ongoing operating costs because they can only be used once and at must be replaced every time the nozzle is changed. There is also no absolute Tightness, as is unfortunately known from practice, because Manufacturing and assembly errors with increasing number of individual parts inevitably increase.
Zur Behebung einiger der mit Sandfüllungen verbundenen Nachteile wurde vorgeschlagen einen Filteraufbau, wie er z. B. aus dem DE 29 26 533 C2 bekannt ist, einzusetzen. Dabei findet ein Verfahren Anwendung, bei dem die einzelnen Filterronden miteinander kalt verpreßt werden, so daß eine wesentlich bessere Filterwirkung erzielt wird als bei der identischen Anordnung loser Filterronden. Derartige kaltgesinterte Filter sind mit einer Dichtungseinfassung versehen und werden von verschiedenen Anbietern unter Handelsnamen wie "Porostar" oder "Multipor" vertrieben. Die Dichtungseinfassung unterliegt dabei den zuvor geschilderten Nachteilen.To address some of the disadvantages associated with sand fillings proposed a filter structure, as z. B. from DE 29 26 533 C2 is known to use. A method is used in which the individual filter blanks are cold pressed together so that a much better filter effect is achieved than with the identical arrangement of loose filter discs. Such cold sintered Filters are provided with a seal and are from various providers under trade names such as "Porostar" or "Multipor" distributed. The seal surround is subject to the disadvantages previously described.
Aufgabe der vorliegenden Erfindung ist es, eine Spinndüse zum Verspinnen von Thermoplasten zur Verfügung zu stellen, die die genannten Nachteile sowohl von Sandschüttungen als auch von Dichtungseinfassungen vermeidet. Dabei sollte die Spinndüse möglichst kompakt gestaltet sein.The object of the present invention is to provide a spinneret Spinning thermoplastics to provide the mentioned disadvantages of both sand and Avoid seal surrounds. The spinneret should be as possible be compact.
Die Lösung dieser Aufgabe erfolgt erfindungsgemäß durch eine Spinndüse gemäß den Angaben der Patentansprüche.This object is achieved according to the invention by a spinneret according to the information in the claims.
Erfindungsgemäß werden Filteraufbauten aus miteinander kalt verpreßten Filterronden, jedoch ohne die konventionelle Dichtungseinfassung in eine möglichst paßgenaue Gehäusebohrung eingesetzt, wobei der Werkstoff des Filters einen wesentlich höheren Wärmeausdehnungskoeffizienten aufweisen muß als das Material des Gehäuses. Die Abdichtung der Filteraufbauten erfolgt bei Betriebstemperatur durch Wärmeausdehnung und die der Spinndüsenplatte in beliebiger Weise. According to the invention, filter assemblies are cold-pressed together Filter discs, but without the conventional seal surround in the housing bore used as precisely as possible, the material the filter has a much higher coefficient of thermal expansion must have as the material of the housing. Sealing the Filters are built up at operating temperature through thermal expansion and that of the spinneret plate in any way.
Weiterhin wird vorgeschlagen, die Spinndüsenplatte aus einem Werkstoff mit hohem Wärmeausdehnungskoeffizienten zu fertigen und in eine möglichst paßgenaue Bohrung im Gehäuse einzusetzen. In diesem Fall erfolgt die Abdichtung der Spinndüsenplatte bei Betriebstemperatur durch Wärmeausdehnung. Die Filteranordnung kann dabei in beliebiger Weise aufgebaut sein und aus einem Material mit beliebigen Wärmeausdehnungskoeffizienten gefertigt sein.It is also proposed that the spinneret plate be made of one material to produce with a high coefficient of thermal expansion and in one Use a hole that fits as precisely as possible in the housing. In this case the spinneret plate is sealed at operating temperature through thermal expansion. The filter arrangement can be in any Be constructed and made of one material with any Thermal expansion coefficient to be made.
Vorzugsweise werden sowohl der Filter aus miteinander kalt verpreßten Filterronden als auch die Spinndüsenplatte aus Werkstoffen mit hohem Wäremeausdehnungskoeffizienten gefertigt und beide Teile in möglichst paßgenaue Bohrungen des aus einem Material mit niedrigem Wärmeausdehnungskoeffizienten gefertigten Gehäuse eingesetzt.Both the filter are preferably cold-pressed together Filter discs as well as the spinneret plate made of materials with high Thermal expansion coefficients made and both parts in as possible precisely fitting holes made of a material with low Thermal expansion coefficient manufactured housing used.
Bevorzugt wird die Spinndüsenplatte zusätzlich zu dem vorerwähnten paßgenauen Dichtungssitz in der unteren Hälfte mit einem Gewinde versehen und direkt in das Gehäuse eingeschraubt, wobei das Gewinde und der Anschlag der Düse im Gehäuse so ausgestattet sind, daß das Spinnlochbild immer in der gleichen Ausrichtung zu stehen kommt. Dadurch wird gewährleistet, daß beim Einschrauben bis zum Anschlag die korrekte Anblasung der Filamente beim Ausspinnen erfolgt.The spinneret plate is preferred in addition to the above precisely fitting seal seat in the lower half with a thread provided and screwed directly into the housing, the thread and the stop of the nozzle in the housing are equipped so that the Spinning hole pattern always comes in the same orientation. This ensures that when screwing in until it stops the filaments are correctly blown during spinning.
Vorzugsweise ist das Gehäuse an seinem unteren Ende mit einem überstehenden Kragen versehen, der mindestens drei Nuten zur Aufnahme eines Werkzeuges zum Ein- und Ausschrauben aus dem Spinnsystem hat und der zudem die Düse vor schädlichen Berührungen während des Handlings schützt.Preferably, the housing has a lower end protruding collar provided, the at least three grooves for receiving a tool for screwing in and out of the spinning system and which also protects the nozzle from harmful touches during handling protects.
Der erfindungsgemäße Filtereinsatz vermeidet die Nachteile der klassischen Sandfilterung und der Wegfall der konventionellen Dichtungen bringt deutliche Kostenersparnisse und erhöhte Dichtsicherheit. Durch die geeignete Werkstoff- und Passungsauswahl der Einzelteile der erfindungsgemäßen Spinndüse erfolgt die Dichtwirkung bei Betriebstemperatur durch die erhöhte Ausdehnung der inneren Bauteile, Filter und/oder Düsenplatte, gegenüber dem außenliegenden Gehäuse, ohne daß zusätzliche Dichtelemente erforderlich wären. weiterhin ist die kurze und kompakte Bauweise vorteilhaft: Kostengünstige Fertigung und leichtere Handhabung bei gleichmäßiger und identischer Filtration von Düse zu Düse.The filter insert according to the invention avoids the disadvantages of classic sand filtering and the elimination of conventional Seals bring significant cost savings and increased Tight security. Through the appropriate material and fit selection of Individual parts of the spinneret according to the invention have the sealing effect at operating temperature due to the increased expansion of the inner Components, filters and / or nozzle plate, opposite the outside Housing without the need for additional sealing elements. the short and compact design is also advantageous: Inexpensive production and easier handling with uniform and identical filtration from nozzle to nozzle.
Die detaillierte Beschreibung einer bevorzugten Ausführung der
Erfindung erfolgt anhand der Fig. 1, welche die Darstellung einer
beispielhaften Spinndüsenanordnung zeigt: In einem Gehäuse 1 liegt ein
kaltgesinterter Filter 2, dessen Aufbau aus für den jeweiligen
Spinnprozeß spezifisch ausgewählten einzelnen Lagen von Filterronden
verschiedener Filterfeinheit besteht, auf einer Spinndüsenplatte 3 auf.
In dieser beispielhaften Spinndüsenanordnung ist die Spinndüsenplatte 3
mittels eines Gewindes in dem Gehäuse 1 befestigt. Dieses Gewinde im
Gehäuse 1 und an der Spinndüsenplatte 3 ist dabei so ausgeführt, daß
beim Einschrauben bis zum Anschlag das Spinnlochbild immer an der
gleichen Stelle zu stehen kommt, so daß die korrekte Anblasung der
Filamente beim Ausspinnen gewährleistet ist. Der Anschluß an die
Polymerschmelzeversorgung erfolgt über die Anschlußdichtung 4 und (ab
hier nicht mehr dargestellt) einen Adapter zum Heizgefäß (auch
Spinnbalken genannt). Die Ausführung kann ganz nach den Erfordernissen
des Betreibers und an sein vorhandenes Equipment angepaßt werden.The detailed description of a preferred embodiment of the
Invention is based on FIG. 1, which is the representation of a
Exemplary spinneret arrangement shows: In a
Das Gehäuse 1 besteht zum Beispiel aus Werkstoff Nr. 1.4057 (nach DIN-Stahlschlüssel),
einem Material mit einem relativ niedrigen
Wärmeausdehnungskoeffizienten. Die Spinndüsenplatte 3 kann dann aus
Werkstoff Nr. 1.4580 und der Filteraufbau 2 aus Nr. 1.4301 oder 1.4541
gefertigt sein, alles Werkstoffe mit einem relativ hohem
Wärmeausdehnungskoeffizienten. Die Passungen werden den Dimensionen und
Werkstoffen entsprechend so gewählt, daß die Einzelteile im kalten
Zustand leicht zu fügen und wieder zu demontieren sind und einerseits
die Dichtwirkung spätestens kurz vor Erreichen der spezifizierten
Spinntemperatur erfolgt, und andererseits die Teile bei erhöhter
Reinigungstemperatur (ca. 450 ... 540 °C) nicht durch Überdehnung
Schaden erleiden.The
Die gewünschte Selbstdichtungsfunktion im Betriebszustand wird ohne
konventionelle Dichtungen durch die gezielte Materialpaarung und
Passungsauswahl erreicht: Die vier Teile, Gehäuse 1, Filter 2,
Spinndüsenplatte 3 sowie Anschlußdichtung 4, werden in kaltem Zustand
montiert und danach aufgeheizt wie üblich. Durch die unterschiedliche
Wärmeausdehnung tritt der Dichtungseffekt auf und die Düse kann mit
beliebigem Druck angesponnen werden. Das äußere Gehäuse 1 besteht dabei
aus einem Werkstoff mit einem relativ niedrigen
Wärmeausdehnungskoeffizienten, die inneren Teile, Filter 2 und/oder
Spinndüsenplatte 3 sind dagegen aus Materialien mit einem höheren
Wärmeausdehnungskoeffizienten gefertigt. Die Einbaumaße werden so
gewählt, daß die Teile im kalten Zustand (Raumtemperatur) leicht zu
montieren sind, aber bei Spinnbetriebstemperatur (ca. 300 °C) durch die
unterschiedliche Ausdehnung sich selbstdichtende Preßpassungen zwischen
den Teilen ergeben. Nach Spinnende wird die komplette Düse einer
Reinigung unterzogen und erst nach dem Erkalten demontiert. Danach
können die Spinndüsenplatte 3 und das Filterelement 2, das so häufig
wie eine Filterkerze verwendet werden kann, weiter gereinigt und
beschallt werden.The desired self-sealing function in the operating state is without
conventional seals through the targeted material pairing and
Fit selection achieved: The four parts,
Das hier dargelegte Dichtungsprinzip durch unterschiedliche Wärmeausdehnung ist nicht allein auf die beschriebenen Spinndüsen- und Filteranwendungen beschränkt, sondern kann überall dort eingesetzt werden, wo gefiltert, geschert oder gesponnen werden soll, gleich ob für Mikrofasern, textile Filamente, hochfesten Reifencord oder sonstige Anwendungen. Dabei bleibt es dem zuständigen Produkt- oder Anwendungsfachmann überlassen, die Ausgestaltung bezüglich der Wahl der kaltgesinterten Filter, der Werkstoffe und der Passungen für seinen speziellen Fall zu bestimmen oder empirisch zu ermitteln.The sealing principle outlined here by different Thermal expansion is not solely due to the spinneret and described Filter applications limited, but can be used anywhere wherever you want to filter, shear or spin, whether for microfibers, textile filaments, high-strength tire cord or other Applications. It remains the responsible product or Application specialist left to the design regarding the choice of cold sintered filter, materials and fits for its to determine a specific case or to determine it empirically.
- 1.1.
- Gehäusecasing
- 2.Second
- Filteraufbau, FilterFilter structure, filter
- 3.Third
- Spinndüsenplatte, DüsenplatteSpinneret plate, nozzle plate
- 4.4th
- Anschlußdichtungconnection seal
Claims (7)
- A spinneret for spinning thermoplastics with a central polymer melt inlet passage, a filter arrangement (2) consisting of a plurality of filter discs of different filter fineness which are fixedly bonded together by cold pressing, a spinneret plate (3) and a housing (1) which closely surrounds and receives the filter arrangement (2) and the spinneret plate (3), characterised in that said filter arrangement (2) has no sealing enclosure and consists of a material with a higher thermal expansion coefficient than that of the material from which the housing (1) surrounding it is fabricated.
- A spinneret for spinning of thermoplastics with a central polymer melt inlet passage, a filter arrangement (2) consisting of one or more filter discs of different filter fineness and of any type, a spinneret plate (3) and a housing (1) surrounding and receiving the filter arrangement (2) and the spinneret plate (3), characterised in that the spinneret plate (3) consists of a material with a higher thermal expansion coefficient than that of the material from which the housing (1) surrounding it is fabricated.
- A spinneret for spinning of thermoplastics with a central polymer melt inlet passage, a filter arrangement (2) consisting of a plurality of filter discs of different filter fineness which are fixedly bonded together by cold pressing, a spinneret plate (3) and a housing (1), which closely surrounds and receives the filter arrangement (2) and the spinneret plate (3), characterised in that said filter arrangement (2) has no sealing enclosure and the filter arrangement (2) and the spinneret plate (3) consist of materials with a higher thermal expansion coefficient than that of the material from which the housing (1) surrounding them is fabricated.
- A spinneret according to one of Claims 1 to 3, characterised in that the spinneret plate (3) and/or the filter arrangement (2) are composed of austenitic steel such as for example Nos. 1.4301, 1.4541, 1.4580 or a material with a similarly high thermal expansion coefficient, and that the housing (1) surrounding them is fabricated from a material with a lower thermal expansion coefficient, such as for example No. 1.4057 or a similar chromium steel or heat-resistant material.
- A spinneret according to one of Claims 1 to 4, characterised in that the dimensioning is so selected that the fit between the outer diameter of the spinneret plate (3) and/or the filter arrangement (2) on the one hand and the bore receiving it in the surrounding housing (1) on the other hand provides a slight play fit at room temperature which is transformed at operating temperature, based upon the different expansions of the parts, into a self-sealing radial press fit.
- A spinneret according to one of Claims 2 to 5, characterised in that the spinneret plate (3) consists of a material with a higher thermal expansion coefficient than that of the material of the housing (1) surrounding it and that the spinneret plate (3) in its lower half is additionally provided with a thread and is directly screwed into the housing (1), the thread and the stop of the spinneret plate (3) in the housing (1) being so formed that the spinning orifice pattern always has the same orientation so that the correct blast on the filaments as they are spun is ensured by the screwing of the spinneret plate to its stop.
- A spinneret according to one of Claims 1 to 6, characterised in that the housing (1) has at its lower end a projecting collar which has at least three grooves for receiving a tool for screwing in and out of the spinning system and protects the spinneret plate (3) against detrimental contact during handling.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19935982A DE19935982A1 (en) | 1999-07-30 | 1999-07-30 | Self-sealing compact nozzle for melt spinning processes |
| DE19935982 | 1999-07-30 | ||
| PCT/EP2000/005840 WO2001009413A1 (en) | 1999-07-30 | 2000-06-24 | Self-sealing compact spinneret for a melt spinning process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1208250A1 EP1208250A1 (en) | 2002-05-29 |
| EP1208250B1 true EP1208250B1 (en) | 2003-11-26 |
Family
ID=7916675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00942123A Expired - Lifetime EP1208250B1 (en) | 1999-07-30 | 2000-06-24 | Self-sealing compact spinneret for a melt spinning process |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6716016B1 (en) |
| EP (1) | EP1208250B1 (en) |
| AT (1) | ATE255177T1 (en) |
| AU (1) | AU5685100A (en) |
| DE (2) | DE19935982A1 (en) |
| WO (1) | WO2001009413A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007034092A1 (en) | 2007-07-21 | 2009-01-22 | Oerlikon Textile Gmbh & Co. Kg | Melt-spinning device for synthetic filaments has inside diameter of inner wall of sealing sleeve continuously reducing in region of second and third section of wall |
| CN1766180B (en) * | 2004-10-30 | 2010-05-05 | 苏拉有限及两合公司 | Spinning manifold |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE50208620D1 (en) * | 2001-09-28 | 2006-12-14 | Saurer Gmbh & Co Kg | spinneret |
| DE10314294A1 (en) | 2003-03-29 | 2004-10-07 | Saurer Gmbh & Co. Kg | Device for melt spinning |
| JP2015081400A (en) * | 2013-10-24 | 2015-04-27 | Ｔｍｔマシナリー株式会社 | Spinning pack |
| CN105420824B (en) * | 2016-01-09 | 2017-08-01 | 浙江恒百华化纤有限公司 | A kind of filament spinning component and its spinning process |
| CN113981616B (en) * | 2021-11-26 | 2023-10-20 | 辽宁盛京堂新材料科技有限公司 | Melt-blowing device and process for manufacturing inactivated virus melt-blowing cloth |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1660209A1 (en) * | 1965-07-15 | 1970-02-05 | Barmag Barmer Maschf | Melt spinning head for spinning under high pressure |
| GB1327046A (en) * | 1970-01-28 | 1973-08-15 | Ici Ltd | Filter seal |
| US3724064A (en) * | 1970-07-02 | 1973-04-03 | Mott Metallurg Corp | Sealing method |
| DD125421A1 (en) * | 1976-05-13 | 1977-04-20 | ||
| DE2926533C2 (en) | 1979-06-30 | 1982-11-25 | Haver & Boecker, 4740 Oelde | Method for producing a porous filter layer |
| DE4236570A1 (en) * | 1991-12-06 | 1993-06-09 | Akzo N.V., Arnheim/Arnhem, Nl | |
| DE4239560C2 (en) | 1992-11-25 | 2003-04-30 | Zimmer Ag | nozzle block |
| IT1272396B (en) * | 1993-05-04 | 1997-06-23 | Savio Spa | PERFECTED SPINNING BLOCK |
| DE4343270A1 (en) * | 1993-12-17 | 1995-06-22 | Zimmer Ag | Spinning head with filter candle |
| DE19607103B4 (en) | 1996-02-24 | 2006-01-26 | Zimmer Ag | Spinnpack with sand filter |
-
1999
- 1999-07-30 DE DE19935982A patent/DE19935982A1/en not_active Withdrawn
-
2000
- 2000-06-24 DE DE50004580T patent/DE50004580D1/en not_active Expired - Fee Related
- 2000-06-24 AT AT00942123T patent/ATE255177T1/en not_active IP Right Cessation
- 2000-06-24 WO PCT/EP2000/005840 patent/WO2001009413A1/en active IP Right Grant
- 2000-06-24 US US10/018,456 patent/US6716016B1/en not_active Expired - Fee Related
- 2000-06-24 AU AU56851/00A patent/AU5685100A/en not_active Abandoned
- 2000-06-24 EP EP00942123A patent/EP1208250B1/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1766180B (en) * | 2004-10-30 | 2010-05-05 | 苏拉有限及两合公司 | Spinning manifold |
| DE102007034092A1 (en) | 2007-07-21 | 2009-01-22 | Oerlikon Textile Gmbh & Co. Kg | Melt-spinning device for synthetic filaments has inside diameter of inner wall of sealing sleeve continuously reducing in region of second and third section of wall |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1208250A1 (en) | 2002-05-29 |
| AU5685100A (en) | 2001-02-19 |
| DE50004580D1 (en) | 2004-01-08 |
| US6716016B1 (en) | 2004-04-06 |
| DE19935982A1 (en) | 2001-02-01 |
| WO2001009413A1 (en) | 2001-02-08 |
| ATE255177T1 (en) | 2003-12-15 |
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