EP1093535A1 - Filtervorrichtung und spinnkopf - Google Patents
Filtervorrichtung und spinnkopfInfo
- Publication number
- EP1093535A1 EP1093535A1 EP99927841A EP99927841A EP1093535A1 EP 1093535 A1 EP1093535 A1 EP 1093535A1 EP 99927841 A EP99927841 A EP 99927841A EP 99927841 A EP99927841 A EP 99927841A EP 1093535 A1 EP1093535 A1 EP 1093535A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter
- filter element
- sealing
- head
- distributor
- 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.)
- Granted
Links
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
Definitions
- the invention relates to a filter device for a spinning head and a spinning head for the production of plastic threads, which has a housing in which the plastic melt flows through a filter element with a filter material under pressure before it emerges from the spinning nozzles Melt pressure experiences an axial contact force, which acts on the sealing edges of the filter element by closing sealing gaps.
- a single ring filter element which comprises a mixing device in the interior of the housing, which serves to bring the filtered melt stream coming out of the filter with homogeneous mixing; only the known filter element is only slightly stable in terms of pressure and the elasticity of the clamped filter element is not sufficient to completely seal off the possible passage points in the form of the sealing gaps via its sealing edges.
- the ring filter element with plate filter packets; The resulting deflection of the melt flow within the filter element with its disk filter disks alone results in an unfavorable energetic flow behavior, which hinders the actual filtering process for the plastic melt.
- the solution in question is also expensive to implement.
- a spinning head is known from DE 42 27 1 14, in which the stability of the ring filter element is increased due to radial support by a distributor device, but with the result that the filter element can be flowed through very unevenly.
- filter elements with a support tube which have wall-side fluid passages which are enclosed by a filter material.
- the end of the filter element is firmly clamped in housing parts of the filter device, so that only a seal in the area of predeterminable seal values can be achieved there. If there are signs of settlement in the seals due to the static clamping, this is associated with a loss of tightness.
- the object of the invention is to create an improved filter device for a spinning head. fen, which allows a low-energy filtration operation, is pressure-stable, ensures a good permanent seal and is inexpensive to implement. A corresponding object is achieved by a filter device with the features of claims 1 and 2.
- Another object of the invention is to develop a spinning head of the type mentioned at the outset in such a way that there is a particularly homogeneous plastic melt for producing a multifilament synthetic thread at the outlet.
- a spinning head with the features according to claim 12 solves this problem.
- the filter element has a support tube with wall-side fluid passages to form an exchangeable structural unit, which is surrounded by the filter material, which at least at one end protrudes axially with its sealing edge over the support tube and / or axially is set back, a pressure-stable unit is formed, which is reliable in operation even at high melt pressures. Since the flow direction for the plastic melt takes place uniformly in one direction over the entire length of the filter element, the flow is energetically favorable and the flow of melt is not opposed by any artificial resistance.
- the filter element in question can be created from standard components, in particular from conventional metal mesh filter materials, its production is inexpensive.
- a flat sealing edge is present at the filter element at least at one end, the overall rigidity of the filter element being such is chosen that the sealing gap is closed under the contact pressure.
- a dynamic sealing system for the filter device with a spinning head is thus implemented, which seals more and more with increasing contact pressure.
- the spinning head according to the invention is particularly characterized in that the plastic melt is guided uniformly from inlet to outlet without different dwell times.
- the delivery space formed between the melt-permeable support tube and the distributor head ensures that the filter element flows through uniformly and that the filtered plastic melt is discharged unhindered to the outlet. A high pressure stability of the filter element is achieved through the support tube.
- an underside of the pressure plate can be chamfered on the displacement device between the pressure plate and the distributor head, which underside acts as a sealing surface against a sealing edge of the filter element. This avoids disadvantageous flow-related backlogs.
- the underside of the pressure plate is preferably inclined at an angle of 0 ° to 40 ° in the direction of the exit of the plastic melt in the spinning head.
- the support tube ⁇ and the filter material are connected to form a cylindrical filter jacket the ends of which are formed by the sealing surfaces of the filter element. It is particularly advantageous that the filter material at the end of the filter element facing the pressure plate protrudes axially with its sealing edge over the support tube or is set back, so that there is no accumulation corner.
- the elasticity of the filter jacket is not restricted by the radial stability of the support tube. Due to the fluid passages in the support tube, the filter jacket has an axial elasticity, which dynamically supports the closing of the sealing gaps over the sealing edges of the filter element under the axial contact force.
- the elasticity of the filter element can be favored and increased by the fact that the filter element does not have end caps made of a correspondingly rigid material, but rather the elasticity is achieved solely by compressing the filter material and welding it at the end.
- FIG. 1 shows a longitudinal section through a spinning head according to the invention with a filter device according to the invention
- FIG. 2a shows a longitudinal section through a modified filter element with support tube and filter material
- FIG. 3 shows a longitudinal section through the support tube according to the Fig.2.
- 1 shows as a whole 10 a spinning head for producing plastic threads from a plastic melt (not shown), in particular a polymer melt.
- the spinning head 10 has a housing 12 in the manner of a hollow cylinder with an upper inlet opening 14 for the entry of the plastic melt and with a lower outlet opening 16 for receiving a spinneret which has numerous nozzle bores for the exit of the filaments of a multifilament synthetic thread (not shown).
- the lower outlet opening 16 is closed with a spinneret plate in the usual and therefore not shown in detail.
- the right half of the picture represents the spinning head in an initial position and the left half relates to the operating position in which the movable parts of the spinning head 10 are shown in their operating position under the pressure and force of the plastic melt.
- the filter element 18 For a filtering process of the plastic melt, it is passed under pressure through a filter element 18 with a filter material 20 before it emerges from the spinnerets via the spinneret plate, the flow direction being radial from the outside inwards.
- the filter element 18 in question is shown in an improved illustration in FIG.
- the filter material 20 experiences an axial contact force via a distributor device 22, which acts upon the sealing edges 26, 28 of the filter element 18 as a possible passage point for the plastic melt by closing sealing gaps 24.
- the filter element 18 has a support tube 30 with fluid passages 32 for the plastic melt, forming an exchangeable structural unit, as shown in FIG. 2, although not all of them are shown in FIG. 3, which shows the support tube 30 Passage points 32 are shown. However, these are assigned to each other in groups of three evenly distributed along the outer circumference of the drum-like support tube 30.
- the filter material 20 encloses the same with the support tube 30.
- the filter material 20 viewed in the direction of looking at the figure, protrudes axially at the upper end with its sealing edge 28 via the support tube 30 and axially back at the lower end.
- the filter material 20 preferably consists of a pleated filter jacket 34 made of wire mesh or of a metal fiber fleece, in particular in the form of stainless steel. To connect the jacket ends, these are connected to one another via a longitudinal weld seam (not shown) to form a cylindrical hollow body. Instead of pleating, the filter jacket can also be wound in one or more layers around the support tube 30 (not shown).
- the filter jacket 34 consists of a multilayer stainless steel mesh with a filter fineness between 5 ⁇ m to 500 ⁇ m, in particular 50 / vm to 1 50 ⁇ m.
- the filter material is also commercially available under the brand name "Micron".
- the filter jacket 34 is pleated, there is an independent sealing edge 26, 28 for each filter fold on the opposite end sides of the filter jacket 34
- the pleated design of the filter jacket 34 can also consist of a continuous cylindrical filter jacket with a flat outer circumference
- the respective filter material 20 can form the filter jacket 34 in one piece or in one piece, the support tube 30 being an integral part of the entire filter element Embodiment, the support tube 30 is also completely eliminated and formed exclusively by the filter element cylinder.
- the filter jacket 34 has a predeterminable elasticity which, under the aforementioned axial contact force during the filtering process, ie during the operation of the spinning head 10, closes the respective sealing gap. 24 supported via the sealing edges 26, 28 of the filter element 18.
- the sealing edges 26, 28 of the filter element 18 are inclined relative to the circular planes 36 of the support tube 30 by a predeterminable angular amount, in particular by 15 °, in the direction of the entry of the plastic melt into the spinning head 10. This results in two radial sealing flanges 38 parallel to the circular planes 36 which, as in the illustration according to FIG. 2, are correspondingly compressed in a filter jacket 34 and are thus disc-shaped.
- a corresponding compression occurs even if the filter jacket is, as already mentioned, hollow-cylindrical.
- the sealing is accomplished via the sealing edges 26, 28.
- An effective sealing effect and sealing is achieved via the support tube 30 cooperating with the filter jacket 34, so that overall the filter element 18 achieves the sealing effect.
- the sealing edges 26, 28 of the filter element 18 are each formed by a circumferential weld 40 (see FIG. 2), which completely covers the front ends along the pleated folds of the filter jacket 34.
- the circumferential weld 40 is in this case by grinding or the like. reworked that the sealing edges 26, 28 run straight along a closed circumferential arc to ensure their sealing purpose.
- the distributor device 22 has a distributor head 42 with a pressure plate 44 at its upper end.
- the distributor head 42 is guided within the housing 12 in a longitudinally movable manner within a cylindrical support receptacle 46.
- the filter element 18 encompasses the outer circumference of the mentioned distribution head 42 and is supported at one end on the underside of the pressure plate 44 and at the other end on a projection 48 of the support receptacle 46.
- the underside of the pressure plate 44 and the top of the projection 48 are also provided with an angle of inclination that corresponds to the angle of inclination of the sealing edges 26 and corresponds to 28 and is preferably 1 5 ° with respect to the horizontal.
- a sealing ring (not shown) can also be arranged between the sealing edge 26 of the filter element and the sealing surface of the distributor device 22.
- the lower sealing edge 28 is arranged axially recessed relative to the support tube 30 when viewed in the direction of the figure.
- the sealing edge 26 is arranged to run flat, i.e. lying together in a horizontal plane with the associated free end of the support tube 30.
- the sealing gap closes 24 takes place visibly up to the maximum sealing effect and consequently a secure seal in the area of the circular weld seams, which essentially form the sealing edges 26, 28.
- the outer circumference of the filter element 18 delimits with the support receptacle 46 a feed space 50 which is dimensioned volumetrically such that a possible dead space is kept small.
- the support tube 30 with the distributor head 42 delimits a delivery space 52 for the plastic melt, wherein the delivery space 52 can also consist of individual longitudinal channels, which are arranged on the outer circumferential side of the distributor head 42 and can extend in the longitudinal direction over the entire height of the support tube 30.
- the feed space 50 tapers conically from top to bottom as viewed in the direction of FIG. 1, the delivery space 52 widens conically from top to bottom. It has been shown that this leads to optimal flow conditions when flowing through the filter element 18 with a simultaneous reduction in dead space.
- the distributor head 42 cooperates in the usual way with a control head 54, which is guided longitudinally in the housing 12 along the inner wall and, with an increasing feed movement in the direction of the distributor head 42, provides an edge seal 56 with respect to the housing 12.
- the control head 54 has a central recess 58 and from there the plastic melt is distributed evenly over the top of the pressure plate 44. From there, the plastic melt enters the feed space 50 via a longitudinal channel guide 60 on the circumferential side
- Control head 54 is supported in relation to the distributor head 42 via a spring-elastic spacer 62 in the manner of a partial segment of a plate spring.
- the spacer in question can in turn be supported with its lower end accordingly on an edge flange of the support receptacle 46 or on the distributor head 42 for limiting the path of the control head 54.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19825532A DE19825532A1 (de) | 1998-06-08 | 1998-06-08 | Filtervorrichtung für einen Spinnkopf |
DE19825532 | 1998-06-08 | ||
PCT/EP1999/003814 WO1999064648A1 (de) | 1998-06-08 | 1999-06-02 | Filtervorrichtung und spinnkopf |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1093535A1 true EP1093535A1 (de) | 2001-04-25 |
EP1093535B1 EP1093535B1 (de) | 2002-08-21 |
Family
ID=7870269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99927841A Expired - Lifetime EP1093535B1 (de) | 1998-06-08 | 1999-06-02 | Filtervorrichtung und spinnkopf |
Country Status (8)
Country | Link |
---|---|
US (1) | US6604928B1 (de) |
EP (1) | EP1093535B1 (de) |
JP (1) | JP4343436B2 (de) |
KR (1) | KR100516318B1 (de) |
CN (1) | CN1105792C (de) |
DE (2) | DE19825532A1 (de) |
ES (1) | ES2182537T3 (de) |
WO (1) | WO1999064648A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10140116A1 (de) * | 2001-08-16 | 2003-02-27 | Berthold Mueller | Spinnverfahren mit Doppelfilter und Vorrichtung dazu |
KR100458946B1 (ko) * | 2002-08-16 | 2004-12-03 | (주)삼신크리에이션 | 나노섬유 제조를 위한 전기방사장치 및 이를 위한방사노즐팩 |
DE102009014374A1 (de) * | 2009-03-21 | 2010-09-23 | Oerlikon Textile Gmbh & Co. Kg | Spinnkopf |
DE102014000305A1 (de) * | 2014-01-10 | 2015-07-16 | Oerlikon Textile Gmbh & Co. Kg | Spinndüsenvorrichtung |
KR101402355B1 (ko) | 2014-01-16 | 2014-06-02 | (주)휴넷플러스 | 유기 전자 소자 및 이의 제조방법 |
CN104294379A (zh) * | 2014-09-28 | 2015-01-21 | 浙江古纤道新材料股份有限公司 | 双腔一体式纺丝组件 |
DE102019006765A1 (de) * | 2019-09-28 | 2021-04-01 | Hydac Process Technology Gmbh | Verfahren zum Herstellen eines mehrlagigen Filtermediums sowie ein nach diesem Verfahren hergestelltes Filtermedium |
CN118403405A (zh) * | 2024-07-02 | 2024-07-30 | 开源环境科技集团有限公司 | 一种装配式污水处理设备 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE252013C (de) | ||||
DE234693C (de) | ||||
US2881474A (en) * | 1955-09-26 | 1959-04-14 | American Cyanamid Co | Spinning device |
US3762850A (en) * | 1971-07-26 | 1973-10-02 | Akzona Inc | Spinning head |
US4276011A (en) * | 1979-02-21 | 1981-06-30 | American Cyanamid Company | Spinnerette assembly |
DD159886A1 (de) * | 1981-06-22 | 1983-04-13 | Reinhard Wagner | Spinnduesenpaket zur erspinnung von faeden |
US4661249A (en) * | 1985-01-28 | 1987-04-28 | Metallurgical Industries, Inc. | Prefilter device for polymeric material |
DD234693A1 (de) * | 1985-02-14 | 1986-04-09 | Schwarza Chemiefaser | Spinnduesenpaket zur erspinnung von faeden |
DD252013A1 (de) * | 1986-08-04 | 1987-12-02 | Schwarza Chemiefaser | Spinnduesenpaket zum schmelzspinnen von synthetischen linearen hochpolymeren |
IT1254878B (it) * | 1991-04-25 | 1995-10-11 | Barmag Barmer Maschf | Testa di filiera con corpo di spostamento |
DE4225341A1 (de) * | 1991-08-17 | 1993-02-18 | Barmag Barmer Maschf | Spinnkopf |
DE4227114C2 (de) | 1991-09-14 | 2001-09-06 | Barmag Barmer Maschf | Spinnkopf |
DE4343270A1 (de) | 1993-12-17 | 1995-06-22 | Zimmer Ag | Spinnkopf mit Filterkerze |
-
1998
- 1998-06-08 DE DE19825532A patent/DE19825532A1/de not_active Ceased
-
1999
- 1999-06-02 CN CN99807093A patent/CN1105792C/zh not_active Expired - Fee Related
- 1999-06-02 EP EP99927841A patent/EP1093535B1/de not_active Expired - Lifetime
- 1999-06-02 ES ES99927841T patent/ES2182537T3/es not_active Expired - Lifetime
- 1999-06-02 JP JP2000553636A patent/JP4343436B2/ja not_active Expired - Fee Related
- 1999-06-02 DE DE59902419T patent/DE59902419D1/de not_active Expired - Lifetime
- 1999-06-02 WO PCT/EP1999/003814 patent/WO1999064648A1/de active IP Right Grant
- 1999-06-02 US US09/700,308 patent/US6604928B1/en not_active Expired - Fee Related
- 1999-06-02 KR KR10-2000-7013118A patent/KR100516318B1/ko not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9964648A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE59902419D1 (de) | 2002-09-26 |
CN1105792C (zh) | 2003-04-16 |
KR20010043756A (ko) | 2001-05-25 |
ES2182537T3 (es) | 2003-03-01 |
WO1999064648A1 (de) | 1999-12-16 |
DE19825532A1 (de) | 1999-12-09 |
EP1093535B1 (de) | 2002-08-21 |
JP2002517629A (ja) | 2002-06-18 |
CN1304462A (zh) | 2001-07-18 |
JP4343436B2 (ja) | 2009-10-14 |
KR100516318B1 (ko) | 2005-09-23 |
US6604928B1 (en) | 2003-08-12 |
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