EP0547700A1 - Verteilerscheibe für geschmolzene thermoplastische Materialien in einem Spinnkopf - Google Patents
Verteilerscheibe für geschmolzene thermoplastische Materialien in einem Spinnkopf Download PDFInfo
- Publication number
- EP0547700A1 EP0547700A1 EP92203901A EP92203901A EP0547700A1 EP 0547700 A1 EP0547700 A1 EP 0547700A1 EP 92203901 A EP92203901 A EP 92203901A EP 92203901 A EP92203901 A EP 92203901A EP 0547700 A1 EP0547700 A1 EP 0547700A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- disc
- spinning
- thermoplastic material
- distributor disc
- molten thermoplastic
- 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.)
- Ceased
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
- D01D4/06—Distributing spinning solution or melt to spinning nozzles
-
- 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
- D01D1/06—Feeding liquid to the spinning head
Definitions
- This invention relates to a distributor disc for molten thermoplastic material fed to a spinning head for spinning plastic masses, to obtain synthetic yarn.
- the mass to be spun is fed onto said distributor disc, so that in flowing over its conical crown-like surface it is distributed uniformly by a plurality of concave radial grooves in spoke arrangement, which converge with, and expel the molten thermoplastic material into, grooves in the outer circumferential edge of the disc.
- thermoplastic masses such as polyesters, polyamides etc.
- the mass of thermoplastic synthetic material to form the yarn is preferably fed by an extrusion press along a central channel to the inlet of a spinning head, from which the yarn emerges through sized nozzles to be collected on winding devices.
- the starting polymer in the solid state passes initially through a heating process in which it is melted to the liquid state, after which it is fed by an extrusion press or any other suitable member to the actual spinning block.
- This spinning block comprises in practice a disc for distributing the molten polymer entering the underlying filter block.
- this molten polymer distributor disc has substantial drawbacks, related to the formation of static molten masses, ie residual material which solidifies in the corners between the wall of the spinning block and the surface of the distributor disc.
- the residual material which solidifies during spinning on the one hand contributes hydrodynamic resistance to the flow of the molten polymer, and on the other hand after a more or less lengthy period of operation reduces the passage cross-section, to finally block the spinning process.
- Said distributor disc for thermoplastic material comprises a conical crown-like surface in which there are provided a plurality of concave radial grooves with their cross-section gradually increasing from the centre to the periphery at the grooved outer circumferential edge.
- Said concave radial grooves are arranged as spokes uniformly distributed over the conical crown-like surface of the disc, each concave radial groove converging with and opening into a respective groove in the grooved outer circumferential edge.
- Said grooves in the outer circumferential edge are of substantially rectangular shape with sufficiently rounded corners.
- FIG. 1 The figure of the single accompanying drawing shows a schematic section on a vertical axis though a spinning block comprising the distributor disc for molten thermoplastic material of the present invention.
- the polymer in the molten liquid state is fed under pressure in the direction 9 into the central entry duct 3 of the spinning block 1. All this is well known to the expert of the art. As is also known, the path for the molten polymer entering the spinning block 1 must be made fluid-tight by gaskets 11 of suitable material.
- the molten polymer flows under pressure through the central duct 3 in the block 7 and onto the conical crown-like surface 6 of the distributor disc 8. Said molten polymer is distributed circumferentially and flows uniformly along the direction 2 within the circumferential space between the surfaces 6 and 4.
- the molten polymer is obliged to enter concave radial grooves 5 in spoke arrangement, said radial grooves 5 being concave and with their cross-section gradually increasing in size from the centre of the conical surface 6 to the periphery at the grooved outer circumferential edge of the distributor disc 8.
- the cross-section gradually increases in size in order to maintain the circumferential passage section for the molten polymer substantially constant.
- This latter flows uniformly into the discoidal space 14, to pass through the filter block 10 and then into the underlying discoidal space 14, from which it leaves to pass through the plate 15 via the sized passage holes 18, from which it emerges to flow firstly into the discoidal space 20 and then through the sized nozzles 16 in the plate 19.
- the plate 19 which represents the actual spinning element, the molten polymer leaves in the direction 12 in its final spun yarn form to be collected on an underlying winding unit (not shown).
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI913420 | 1991-12-19 | ||
ITMI913420A IT1252556B (it) | 1991-12-19 | 1991-12-19 | Disco distributore di materiale termoplastico fuso per una testa di filatura |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0547700A1 true EP0547700A1 (de) | 1993-06-23 |
Family
ID=11361386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92203901A Ceased EP0547700A1 (de) | 1991-12-19 | 1992-12-12 | Verteilerscheibe für geschmolzene thermoplastische Materialien in einem Spinnkopf |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0547700A1 (de) |
KR (1) | KR930013229A (de) |
CN (1) | CN1078002A (de) |
IT (1) | IT1252556B (de) |
MX (1) | MX9207432A (de) |
ZA (1) | ZA929782B (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4417815C1 (de) * | 1994-05-20 | 1995-10-12 | Inventa Ag | Filter für Polymerlösungen und Polymerschmelzen |
DE19607103B4 (de) * | 1996-02-24 | 2006-01-26 | Zimmer Ag | Spinnpack mit Sandfilter |
JP2011195989A (ja) * | 2010-03-19 | 2011-10-06 | Toray Ind Inc | 紡糸パックおよびフィラメント糸の製造方法 |
WO2023242680A1 (en) * | 2022-06-14 | 2023-12-21 | Aladdin Manufacturing Corporation | Flow modifying spin pack and methods for using the flow modifying spin pack |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103261494B (zh) * | 2010-12-27 | 2015-08-12 | 东丽株式会社 | 复合喷丝头及复合纤维的制造方法 |
JP6793054B2 (ja) * | 2017-02-10 | 2020-12-02 | 住友化学株式会社 | ポリマーフィルタおよびポリマーフィルムの製造方法 |
CN108893995B (zh) * | 2018-06-15 | 2020-12-08 | 阿斯福特纺织(漳州)有限公司 | 一种均衡型涤纶面料及其成型工艺 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3762850A (en) * | 1971-07-26 | 1973-10-02 | Akzona Inc | Spinning head |
-
1991
- 1991-12-19 IT ITMI913420A patent/IT1252556B/it active IP Right Grant
-
1992
- 1992-12-12 EP EP92203901A patent/EP0547700A1/de not_active Ceased
- 1992-12-16 KR KR1019920024408A patent/KR930013229A/ko not_active Application Discontinuation
- 1992-12-17 ZA ZA929782A patent/ZA929782B/xx unknown
- 1992-12-18 MX MX9207432A patent/MX9207432A/es unknown
- 1992-12-19 CN CN92115399A patent/CN1078002A/zh active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3762850A (en) * | 1971-07-26 | 1973-10-02 | Akzona Inc | Spinning head |
Non-Patent Citations (1)
Title |
---|
SOVIET INVENTIONS ILLUSTRATED Section Ch, Week 8303, 2 March 1983 Derwent Publications Ltd., London, GB; Class A, AN 83-06904K & SU-A-912 781 (SYNTH FIBRES RES) 17 March 1982 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4417815C1 (de) * | 1994-05-20 | 1995-10-12 | Inventa Ag | Filter für Polymerlösungen und Polymerschmelzen |
DE19607103B4 (de) * | 1996-02-24 | 2006-01-26 | Zimmer Ag | Spinnpack mit Sandfilter |
JP2011195989A (ja) * | 2010-03-19 | 2011-10-06 | Toray Ind Inc | 紡糸パックおよびフィラメント糸の製造方法 |
WO2023242680A1 (en) * | 2022-06-14 | 2023-12-21 | Aladdin Manufacturing Corporation | Flow modifying spin pack and methods for using the flow modifying spin pack |
Also Published As
Publication number | Publication date |
---|---|
KR930013229A (ko) | 1993-07-21 |
ITMI913420A1 (it) | 1993-06-19 |
IT1252556B (it) | 1995-06-19 |
CN1078002A (zh) | 1993-11-03 |
MX9207432A (es) | 1993-07-01 |
ZA929782B (en) | 1993-06-23 |
ITMI913420A0 (it) | 1991-12-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE LI LU MC NL PT SE |
|
17P | Request for examination filed |
Effective date: 19931109 |
|
17Q | First examination report despatched |
Effective date: 19940926 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 19950401 |