EP1590512A1 - Device for wetting running filaments - Google Patents
Device for wetting running filamentsInfo
- Publication number
- EP1590512A1 EP1590512A1 EP04706165A EP04706165A EP1590512A1 EP 1590512 A1 EP1590512 A1 EP 1590512A1 EP 04706165 A EP04706165 A EP 04706165A EP 04706165 A EP04706165 A EP 04706165A EP 1590512 A1 EP1590512 A1 EP 1590512A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wetting
- carrier
- openings
- contact surface
- plate
- 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
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/096—Humidity control, or oiling, of filaments, threads or the like, leaving the spinnerettes
Definitions
- the invention relates to a device for wetting a running filament sheet according to the preamble of claim 1.
- a generic device is shown for example from DE 199 45 699 AI.
- a large number of strand-like filaments are first extruded by means of a spinneret and cooled as a family of filaments and combined to form a thread.
- a preparation agent is applied to the filament sheet during or shortly before the filament sheet is gathered, in order on the one hand to establish a cohesion of the individual filaments and on the other hand to avoid excessive friction effects in the thread guides.
- the multifilament thread for applying the preparation agent is guided with contact over a wetted contact surface.
- the contact surface has a large number of pore-shaped openings in the contacted surface area, which are connected to a pressure chamber by a large number of capillaries.
- the contact surface is formed on a wetting insert, which is made of a porous material. Sintered ceramic materials are preferably used for this purpose, the arrangement and distribution of the capillaries and pore-shaped openings being very irregular.
- the bundled arrangement of the filament coulter also makes it difficult to distribute the order to each individual filament strand.
- the invention is characterized in that each of the areas of the filament array guided on the contact surface encounters a uniformly metered wetting agent.
- the wetting insert is formed according to the invention by a thin-walled screen plate with openings arranged in a regular pattern. An equal amount of wetting agent emerges in each area of the contact area due to the regular pattern of the openings arranged in a distributed manner.
- the filament coulter is spread apart, so that essentially every filament strand of the filament coulter comes into contact with the contact surface is feasible. This spreading gives each filament strand an essentially equal amount of wetting agent
- screen plates with different opening cross-sections can be used. At high yarn speeds, screen plates with larger ones are preferred.
- screen plates in particular which are designed as an electroformed carrier plate with through openings separated by webs, have proven successful. Due to the galvanic manufacturing process, such screen plates have a high rounded edge in the area of the contact surface, which enables gentle thread guidance. In addition, a large number of openings can be realized per surface unit.
- the development of the invention has proven to be particularly advantageous in which the webs formed between the openings have a shape that tapers towards the contact surface. In this way funnel-shaped opening cross sections can be formed which have a self-cleaning effect.
- the contact surface of the screen plate has a coating to protect it from wear. This also enables very low-friction contact surfaces to be created, which results in very gentle thread guidance during wetting.
- the development of the invention is preferred in which a plurality of screen plates are held at a distance from one another on the carrier.
- a filament sheet is assigned to each screen plate.
- the wetting insert is formed by a plurality of sieve plates one behind the other, one of the sieve plates being displaceable relative to the adjacent sieve plate. This allows the amount of discharge on the surface of the outer screen plate to be changed.
- the stationary outer screen plate which forms the wetting surface for preparing the filament sheet, could be assigned a movable screen plate.
- the movable sieve plate could be adjusted to maintain a constant discharge quantity so that a constant liquid pressure prevails within the pressure chamber in which the preparation is kept. This allows precise discharge quantities to be set on the surface of the outer screen plate, even at low pressures.
- Fig. 1 shows schematically a view of a first embodiment of the device according to the invention
- FIG. 2 schematically shows a section of the exemplary embodiment from FIG. 1
- FIG. 3 schematically shows a cross section of the exemplary embodiment from FIG. 1
- Fig. 4 shows schematically a section of a further embodiment of the device according to the invention
- Fig. 5 shows schematically a view of a further embodiment of the device according to the invention 1 shows an embodiment of the device according to the invention when used in a spinning process.
- the exemplary embodiment of the wetting device is identified by reference numeral 15.
- a filament sheet 3 is extruded by means of a spinneret 2.
- a supplied polymer melt is pressed under pressure through a plurality of nozzle bores in the spinneret 2 in a spinning head 1.
- the filament strands of the filament bundle 3 emerging from a spinneret 2 are cooled together and, after cooling, are wetted with a wetting agent, preferably an oil-water emulsifier.
- a wetting agent preferably an oil-water emulsifier.
- the wetting device 15 is arranged in the convergence area of the filament array 3.
- a thread guide 16 is directly associated with the wetting device 15, through which the filament sheet 3 is brought together to form a thread 17.
- FIGS. 2 and 3 shows a view (FIG. 2) and a cross-sectional view (FIG. 3) of the wetting device 15 from FIG. 1.
- the wetting device 15 is formed by a carrier 4, which contains a closed pressure chamber 6.
- the pressure chamber 6 within the carrier 4 is connected via a line 14 to a pump 12 and a tank 13.
- the carrier 4 has a wetting insert 5 on the side of the filament sheet 3 which is directly connected to the drain space 6.
- the wetting insert 5 is formed by a thin-walled screen plate 9.
- the screen plate 9 contains a plurality of openings 10 in a contact surface 8, which openings are arranged in a regular pattern in the screen plate 9.
- the screen plate 9 has the contact surface 8 on the outside.
- the contact surface 8 is preferably provided with a coating in order to ensure that the filament sheet 3 is guided with as little friction and protection as possible.
- Sieve plate 9 is formed with a curvature directed in the direction of the thread in order to obtain a spreading of the filament sheet 3 by a minimum wrap of the filament sheet 3 on the contact surface 8.
- the carrier 4 could be formed, for example, by a piece of pipe which is closed on both ends.
- the pump 12 is connected to one of the end faces of the tubular support via the line 14.
- the pump 12 conveys a wetting agent 11 from a tank 13 under pressure into the pressure chamber 6 inside the carrier 4.
- the tubular carrier 4 has a cutout on the circumference for receiving the screen plate 9.
- the screen plate 9 is connected directly to the pressure chamber 6, so that the pressurized wetting agent 11 exits through the openings 10 of the screen plate 9 at the contact surface 8.
- the filament sheet 3 is guided along the contact surface 8 with a minimum wrap.
- the evenly metered amount of wetting agent occurring at the contact surface 8 leads to a uniform wetting of all filament strands of the filament array 3.
- openings 10 are preferably contained only in the direct contact area with the filament array.
- the length of the contact area L extends from 5 mm to 20 mm depending on the diameter of the openings D and depending on the thread speed.
- screen plates with opening cross sections of 10 ⁇ m to 100 ⁇ m are used.
- the size of the openings and the length of the contact surface can be changed in a simple manner by changing the screen plates or by changing the wrap angle of the thread sheet on the screen plate 9. Fine or thick titers can thus advantageously be wetted with one and the same device.
- the screen plate 9 has openings 10 only in the area of the contact surface 8.
- the filament array 3 and the screen plate 9 further additional openings are included in order to provide a larger amount of liquid at the contact surface, in particular in the areas before the filament array hits ,
- Movement of the inner screen plate could maintain a constant
- Output quantity are adjusted so that a constant liquid pressure prevails within the pressure chamber. This allows even at low
- FIG. 4 shows a further exemplary embodiment of the device according to the invention in an enlarged detail.
- the device parts not shown in FIG. 4 are identical to the previous exemplary embodiment, so that reference is made to this.
- the screen plate is formed by an electroformed carrier plate 18.
- Sieve plate is used a matrix that is a grid of electrical conductors having.
- the electrical conductors determine the webs to be formed and insulators determine the openings to be formed.
- metal is deposited on the electrical conductors in a galvanic manner to the desired thickness, after which the carrier plate thus formed is removed from the die.
- the carrier plate 18 thus has a plurality of webs 19 which form the openings 10.
- the webs 19 have a shape tapering in the direction of the contact surface, so that the openings 10 are funnel-shaped. This funnel-shaped design of the openings 10 ensures that no dirt particles or wear particles can get stuck in the openings.
- carrier plates 18 of this type are distinguished by a high degree of rounding, which enables particularly gentle thread guidance.
- the electroformed carrier plate 18 is preferably made from a nickel material. A large number of openings per surface unit can be introduced on the carrier plate 18.
- the thickness of such an electroformed carrier plate is usually of the order of 100 ⁇ m, although both thinner and thicker carrier plates can be produced.
- FIG. 5 shows a further exemplary embodiment of a device according to the invention when used in a spinning process.
- the wetting device 15 is formed by an elongated carrier 4, which has a plurality of wetting inserts 5.1 to 5.4 arranged at intervals from one another. Each of the wetting inserts 5.1 to 5.4 is assigned one of several filament sets 3.1 to 3.4. The filament sets 3.1 to 3.4 are extruded through separate spinnerets 2.1 to 2.4. For this purpose, the spinnerets 2.1 to 2.4 are arranged on a spinning head 1.
- the wetting device 15 is supplied with a wetting agent by means of a pump 12 and the tank 13.
- the carrier 4 has a pressure chamber 6, with which the wetting inserts 5.1 to 5.4 designed as sieve plates are connected.
- a thread guide 16 is arranged directly behind each of the screen plates in the thread running direction, by means of which each of the filament sets 3.1 to 3.4 are combined to form a thread 16.1 to 16.4.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10304596 | 2003-02-05 | ||
DE10304596 | 2003-02-05 | ||
PCT/EP2004/000787 WO2004070092A1 (en) | 2003-02-05 | 2004-01-29 | Device for wetting running filaments |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1590512A1 true EP1590512A1 (en) | 2005-11-02 |
EP1590512B1 EP1590512B1 (en) | 2011-01-05 |
Family
ID=32841596
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04706165A Expired - Lifetime EP1590512B1 (en) | 2003-02-05 | 2004-01-29 | Device for wetting running filaments |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1590512B1 (en) |
CN (1) | CN1748050B (en) |
DE (1) | DE502004012085D1 (en) |
WO (1) | WO2004070092A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004012349A1 (en) * | 2004-03-11 | 2005-10-06 | Hille, Albrecht, Dr.-Ing. | Impregnation of fiber rovings, for use in laminated components, passes them at an angle over the contact surface of a heated impregnating body where a controlled pressure flow of resin passes out through surface openings |
DE102005019165A1 (en) * | 2005-04-25 | 2006-11-02 | Zimmer Ag | Fiber preparation apparatus applies a composition via a system of lips and annular gaps to a fibrous skein passing through the apparatus |
ATE540144T1 (en) * | 2008-05-23 | 2012-01-15 | Oerlikon Textile Gmbh & Co Kg | METHOD FOR MELT SPINNING, DRAWING AND WINDING A MULTIFILE THREAD AND A DEVICE FOR CARRYING OUT THE METHOD |
EP2655707B1 (en) | 2010-12-23 | 2014-09-03 | Oerlikon Textile GmbH & Co. KG | Device for applying a liquid |
DE102012012467A1 (en) | 2011-08-19 | 2013-02-21 | Oerlikon Textile Gmbh & Co. Kg | Device for applying fluid e.g. oil on movable multifilament thread, has inlet and outlet ports that are formed by short inclined fluid channels at perforated plate at specific inclination angle and having inclined orientation |
JP5855283B2 (en) * | 2012-01-24 | 2016-02-09 | エーリコン テクスティル 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Oerlikon Textile GmbH & Co. KG | Device for wetting multiple yarns |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1252844B (en) * | 1955-01-17 | |||
BE565068A (en) * | 1957-02-22 | |||
US4038357A (en) * | 1972-06-28 | 1977-07-26 | Imperial Chemical Industries Inc. | Manufacture of synthetic filaments |
GB1425705A (en) * | 1972-06-28 | 1976-02-18 | Ici Ltd | Manufacture of synthetic filaments |
DE19800636C1 (en) * | 1998-01-09 | 1999-07-29 | Inventa Ag | Spin finish application to melt spun filaments arranged in a circle |
DE19945699A1 (en) * | 1998-10-02 | 2000-04-06 | Barmag Barmer Maschf | Applicator for liquid spin finish to running yarn has a porous contact surface supplied with liquid through a large number of capillaries |
-
2004
- 2004-01-29 WO PCT/EP2004/000787 patent/WO2004070092A1/en active Application Filing
- 2004-01-29 CN CN200480003491.XA patent/CN1748050B/en not_active Expired - Fee Related
- 2004-01-29 EP EP04706165A patent/EP1590512B1/en not_active Expired - Lifetime
- 2004-01-29 DE DE502004012085T patent/DE502004012085D1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO2004070092A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2004070092A1 (en) | 2004-08-19 |
EP1590512B1 (en) | 2011-01-05 |
CN1748050B (en) | 2011-05-04 |
CN1748050A (en) | 2006-03-15 |
DE502004012085D1 (en) | 2011-02-17 |
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