EP1208250B1 - Selbstdichtende kompaktdüse für schmelzspinnverfahren - Google Patents
Selbstdichtende kompaktdüse für schmelzspinnverfahren 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
Links
Images
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.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Description
- 1.
- Gehäuse
- 2.
- Filteraufbau, Filter
- 3.
- Spinndüsenplatte, Düsenplatte
- 4.
- Anschlußdichtung
Claims (7)
- Spinndüse zum Verspinnen von Thermoplasten mit einem zentralen Polymerschmelzeeintrittskanal, einer Filteranordnung (2), bestehend aus mehreren Filterronden verschiedener Filterfeinheit, die miteinander durch kalte Verpreßung fest miteinander verbunden sind, einer Spinndüsenplatte (3) und einem die Filteranordnung (2) und die Spinndüsenplatte (3) aufnehmenden und eng umschließenden Gehäuse (1), dadurch gekennzeichnet, daß besagte Filteranordnung (2) keine Dichtungseinfassung aufweist und aus einem Werkstoff mit einem höheren Wärmeausdehnungskoeffizienten besteht, als der des Materials aus dem das sie umschließende Gehäuse (1) gefertigt ist.
- Spinndüse zum Verspinnen von Thermoplasten mit einem zentralen Polymerschmelzeeintrittskanal, einer Filteranordnung (2), bestehend aus einer oder mehreren Filterronden verschiedener Filterfeinheit und beliebiger Art, einer Spinndüsenplatte (3) und einem die Filteranordnung (2) und die Spinndüsenplatte (3) aufnehmenden und umschließenden Gehäuse (1), dadurch gekennzeichnet, daß die Spinndüsenplatte (3) aus einem Werkstoff mit einem höheren Wärmeausdehnungskoeffizienten besteht, als der des Materials aus dem das sie umschließenden Gehäuse (1) gefertigt ist.
- Spinndüse zum Verspinnen von Thermoplasten mit einem zentralen Polymerschmelzeeintrittskanal, einer Filteranordnung (2), bestehend aus mehreren Filterronden verschiedener Filterfeinheit, die miteinander durch kalte Verpreßung fest miteinander verbunden sind, einer Spinndüsenplatte (3) und einem die Filteranordnung (2) und die Spinndüsenplatte (3) aufnehmenden und eng umschließenden Gehäuse (1), dadurch gekennzeichnet, daß besagte Filteranordnung (2) keine Dichtungseinfassung aufweist und Filteranordnung (2) und Spinndüsenplatte (3) aus Werkstoffen mit einem höheren Wärmeausdehnungskoeffizienten bestehen, als der des Materials aus dem das sie umschließende Gehäuse (1) gefertigt ist.
- Spinndüse nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Spinndüsenplatte (3) und/oder die Filteranordnung (2) aus austenitischen Stählen, wie z. B. Nr. 1.4301, 1.4541, 1.4580 oder einem Werkstoff mit einem ähnlich hohen Wärmeausdehnungskoeffizienten bestehen, und daß das sie umschließende Gehäuse (1) aus einem Material mit einem niedrigeren Wärmeausdehnungskoeffizienten, wie z. B. Nr. 1.4057 oder einem ähnlichen Chromstahl oder warmfesten Material gefertigt ist.
- Spinndüse nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Dimensionierung so gewählt wird, daß die Passung zwischen dem Außendurchmesser der Spinndüsenplatte (3) und/oder der Filteranordnung (2) einerseits und der sie aufnehmenden Bohrung im umschließenden Gehäuse (1) andererseits bei Raumtemperatur eine leichte Spielpassung ergibt, die sich bei Betriebstemperatur aufgrund der unterschiedlichen Ausdehnung der Teile in eine selbstdichtende radiale Preßpassung wandelt.
- Spinndüse nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, daß die Spinndüsenplatte (3) aus einem Werkstoff mit einem höheren Wärmeausdehnungskoeffizienten besteht, als der des Materials des sie umschließenden Gehäuses (1), und daß die Spinndüsenplatte (3) in ihrer unteren Hälfte zusätzlich mit einem Gewinde versehen ist und direkt in das Gehäuse (1) eingeschraubt wird, wobei das Gewinde und der Anschlag der Spinndüsenplatte (3) im Gehäuse (1) so ausgestaltet sind, daß das Spinnlochbild immer in der gleichen Ausrichtung zu stehen kommt, so daß gewährleistet ist, daß beim Einschrauben bis zum Anschlag die korrekte Anblasung der Filamente beim Ausspinnen erfolgt.
- Spinndüse nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Gehäuse (1) an seinem unteren Ende einen überstehenden Kragen hat, der mindestens drei Nuten zur Aufnahme eines Werkzeuges zum Ein- und Ausschrauben aus dem Spinnsystem aufweist und die Spinndüsenplatte (3) vor schädlichen Berührungen während der Handhabung schützt.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19935982 | 1999-07-30 | ||
DE19935982A DE19935982A1 (de) | 1999-07-30 | 1999-07-30 | Selbstdichtende Kompaktdüse für Schmelzspinnverfahren |
PCT/EP2000/005840 WO2001009413A1 (de) | 1999-07-30 | 2000-06-24 | Selbstdichtende kompaktdüse für schmelzspinnverfahren |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1208250A1 EP1208250A1 (de) | 2002-05-29 |
EP1208250B1 true EP1208250B1 (de) | 2003-11-26 |
Family
ID=7916675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00942123A Expired - Lifetime EP1208250B1 (de) | 1999-07-30 | 2000-06-24 | Selbstdichtende kompaktdüse für schmelzspinnverfahren |
Country Status (6)
Country | Link |
---|---|
US (1) | US6716016B1 (de) |
EP (1) | EP1208250B1 (de) |
AT (1) | ATE255177T1 (de) |
AU (1) | AU5685100A (de) |
DE (2) | DE19935982A1 (de) |
WO (1) | WO2001009413A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007034092A1 (de) | 2007-07-21 | 2009-01-22 | Oerlikon Textile Gmbh & Co. Kg | Schmelzspinnvorrichtung |
CN1766180B (zh) * | 2004-10-30 | 2010-05-05 | 苏拉有限及两合公司 | 纺丝箱体 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1440188B1 (de) | 2001-09-28 | 2006-11-02 | Saurer GmbH & Co. KG | Spinndüse |
DE10314294A1 (de) | 2003-03-29 | 2004-10-07 | Saurer Gmbh & Co. Kg | Vorrichtung zum Schmelzspinnen |
JP2015081400A (ja) * | 2013-10-24 | 2015-04-27 | Tmtマシナリー株式会社 | 紡糸パック |
CN105420824B (zh) * | 2016-01-09 | 2017-08-01 | 浙江恒百华化纤有限公司 | 一种纺丝组件及其纺丝方法 |
CN113981616B (zh) * | 2021-11-26 | 2023-10-20 | 辽宁盛京堂新材料科技有限公司 | 一种制作灭活病毒熔喷布的熔喷装置及其工艺 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1660209A1 (de) * | 1965-07-15 | 1970-02-05 | Barmag Barmer Maschf | Schmelzespinnkopf fuer das Spinnen unter hohem Druck |
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 (de) * | 1976-05-13 | 1977-04-20 | ||
DE2926533C2 (de) | 1979-06-30 | 1982-11-25 | Haver & Boecker, 4740 Oelde | Verfahren zum Herstellen einer porösen Filterschicht |
DE4236570A1 (de) * | 1991-12-06 | 1993-06-09 | Akzo N.V., Arnheim/Arnhem, Nl | |
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 |
DE4343270A1 (de) * | 1993-12-17 | 1995-06-22 | Zimmer Ag | Spinnkopf mit Filterkerze |
DE19607103B4 (de) | 1996-02-24 | 2006-01-26 | Zimmer Ag | Spinnpack mit Sandfilter |
-
1999
- 1999-07-30 DE DE19935982A patent/DE19935982A1/de not_active Withdrawn
-
2000
- 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 WO PCT/EP2000/005840 patent/WO2001009413A1/de active IP Right Grant
- 2000-06-24 DE DE50004580T patent/DE50004580D1/de not_active Expired - Fee Related
- 2000-06-24 EP EP00942123A patent/EP1208250B1/de not_active Expired - Lifetime
- 2000-06-24 AT AT00942123T patent/ATE255177T1/de not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1766180B (zh) * | 2004-10-30 | 2010-05-05 | 苏拉有限及两合公司 | 纺丝箱体 |
DE102007034092A1 (de) | 2007-07-21 | 2009-01-22 | Oerlikon Textile Gmbh & Co. Kg | Schmelzspinnvorrichtung |
Also Published As
Publication number | Publication date |
---|---|
US6716016B1 (en) | 2004-04-06 |
WO2001009413A1 (de) | 2001-02-08 |
AU5685100A (en) | 2001-02-19 |
DE50004580D1 (de) | 2004-01-08 |
ATE255177T1 (de) | 2003-12-15 |
DE19935982A1 (de) | 2001-02-01 |
EP1208250A1 (de) | 2002-05-29 |
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