EP1590512B1 - Device for wetting running filaments - Google Patents
Device for wetting running filaments Download PDFInfo
- Publication number
- EP1590512B1 EP1590512B1 EP04706165A EP04706165A EP1590512B1 EP 1590512 B1 EP1590512 B1 EP 1590512B1 EP 04706165 A EP04706165 A EP 04706165A EP 04706165 A EP04706165 A EP 04706165A EP 1590512 B1 EP1590512 B1 EP 1590512B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wetting
- openings
- carrier
- contact surface
- filaments
- 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
- 238000009736 wetting Methods 0.000 title claims abstract description 36
- 239000000080 wetting agent Substances 0.000 claims abstract description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 238000009987 spinning Methods 0.000 description 8
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005323 electroforming Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- 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 bundle according to the preamble of claim 1.
- a generic device is for example from the DE 199 45 699 A1 out.
- a plurality of strand-shaped filaments are first extruded by means of a spinneret and cooled as a filament and combined to form a thread.
- a spin finish is applied to the filament bundle during or shortly before the collection of the filament bundle, on the one hand to produce a cohesion of the individual filaments and on the other hand to avoid high friction effects in the thread guides.
- the multifilament yarn for applying the preparation agent is guided with contact over a wetted contact surface.
- the contact surface has in the contacted surface area a plurality of pore-shaped openings, which are connected by a plurality of capillaries to a pressure chamber.
- the contact surface is formed on a wetting insert made of a porous material.
- a wetting insert made of a porous material.
- sintered ceramic materials are used, the arrangement and distribution of the capillary and pore-shaped openings is very irregular.
- the bundle-shaped arrangement of the filament share also makes it difficult to distribute the order on each individual filament strand.
- Another object of the invention is to provide an apparatus for wetting a set of filaments in which each of the filament strands of a filament bundle forming a filament is uniformly wetted.
- each of the guided at the contact surface area of the filament flock meets a uniformly metered wetting agent exiting.
- the wetting insert is formed according to the invention by a thin-walled screen plate having openings arranged distributed in a regular pattern. In each surface area of the contact surface, an amount of wetting agent which is equal in size and distributed by the regular pattern of the openings emerges.
- the screen plate has a curvature directed toward the thread to guide the filament bundle with a specificallyumschlingung at the contact surface, a spreading of the filament bundle is achieved, so that essentially every filament strand of the filament bundle with contact at the contact surface is feasible. By this spreading, each filament strand receives a substantially equal amount of wetting agent.
- screen plates with different opening cross sections can be used.
- screen plates with larger opening cross-sections up to 100 microns and at correspondingly slower Thread speeds
- Screen plates with smaller opening cross sections up to 10 ⁇ m are used. It has been shown that the contact area between the filament and the contact surface over a length of 5 to max. Should extend 20 mm.
- screen plates which are formed as an electroformed carrier plate with separate through webs, through openings have proven. Due to the galvanic production process, such screen plates have a high edge rounding in the area of the contact surface, which allows a gentle thread guide. In addition, this makes it possible to realize a high number of openings per surface unit.
- the development of the invention has been found to be particularly advantageous in which the webs formed between the openings have a tapered to the contact surface shape. This can be funnel-shaped opening cross-sections form, which cause a self-cleaning effect.
- the contact surface of the screen plate has a coating for wear protection. This can also produce very low-friction contact surfaces, which has a very gentle thread guide during wetting result.
- 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. Each filing plate is assigned a filament share.
- the wetting insert is formed by a plurality of sieve plates lying one behind the other, wherein one of the screen plates is displaceable relative to the adjacent screen plate.
- the stationary outer screen plate which forms the wetting surface for preparing the filament bundle, could be assigned a displaceable screen plate.
- the movable screen plate could be adjusted to maintain a constant discharge amount, so that a constant fluid pressure within the pressure chamber, in which the spin finish is maintained prevails. This makes it possible to set precise discharge quantities on the surface of the outer screen plate even at low pressures.
- Fig. 1 an embodiment of the device according to the invention is shown in the application in a spinning process.
- the embodiment of the wetting device is characterized by the reference numeral 15.
- a filament bundle 3 is extruded by means of a spinneret 2.
- a supplied polymer melt is pressed under pressure through a plurality of nozzle bores of the spinneret 2 in a spinning head 1.
- the filament strands of the filament bundle 3 which have emerged 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 region of the filament bundle 3.
- the wetting device 15 is directly associated with a yarn guide 16 through which the filament bundle 3 is brought together to form a thread 17.
- FIG. 2 and 3 which a view ( Fig. 2 ) and a cross-sectional view ( Fig. 3 ) of the wetting device 15 Fig. 1 shows.
- 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 on the side facing Filamentschar 3 a wetting insert 5, which is connected directly to the pressure chamber 6.
- the wetting insert 5 is formed by a thin-walled screen plate 9.
- the screen plate 9 includes in a contact surface 8 a plurality of openings 10 which are arranged in a regular pattern in the screen plate 9.
- the screen plate 9 has on the outside of the contact surface 8.
- the contact surface 8 is preferably provided with a coating in order to ensure a low-friction and gentle guidance of the filament bundle 3. That's it Screen plate 9 is formed with a curvature directed in the yarn path to obtain by a researcherumschlingung the filament 3 at the contact surface 8, a spreading of the filament 3.
- the carrier 4 could for example be formed by a piece of pipe which is closed to both end faces.
- the pump 12 is connected via the line 14.
- the pump 12 thereby conveys a wetting agent 11 from a tank 13 under pressure into the pressure chamber 6 within the support 4.
- the tubular support 4 has at the periphery a cutout for receiving the screen plate 9.
- the screen plate 9 is directly connected to the pressure chamber 6, so that the wetting agent 11 standing under an overpressure exits through the openings 10 of the screen plate 9 at the contact surface 8.
- the filament bundle 3 is guided along the contact surface 8 with a minimum wrap. The amount of wetting agent occurring uniformly at the contact surface 8 leads to a uniform wetting of all filament strands of the filament bundle 3.
- openings 10 are preferably only in the immediate contact area with the filament share.
- the length of the contact region L extends depending on the diameter of the openings D and depending on the thread running speed of 5 mm to 20 mm.
- sieve plates are used with opening cross-sections of 10 .mu.m to 100 .mu.m.
- the size of the openings and the length of the contact surface can be changed by replacing the screen plates or by changing the wrap angle of the yarn sheet on the screen plate 9 in a simple manner.
- advantageously fine or thicker titres can be wetted with one and the same device.
- the screen plate 9 8 openings 10 only in the region of the contact surface.
- additional additional openings are included to provide a larger amount of liquid at the contact surface in particular in the areas before impact of the filament ,
- the device according to the invention can be a dosage of the exiting preparation amount on the surface of the screen plate also make such that the screen plate, a second inner screen plate is arranged upstream, which is held relative to the outer screen plate slidably.
- fine adjustments can be made to adjust the exiting at the surface discharge amount. It can thus be realized any effective opening cross-sections to exit the spin finish.
- the movement of the inner screen plate could be adjusted to maintain a constant discharge amount, so that a constant fluid pressure prevails within the pressure chamber. This makes it possible to set precise discharge quantities on the surface of the outer screen plate even at low pressures.
- Fig. 4 a further embodiment of the device according to the invention is shown in an enlarged section.
- the in the Fig. 4 not shown device parts are identical to the preceding embodiment, so that reference is made to this.
- the screen plate is formed by an electroformed support plate 18.
- the electroforming of the screen plate uses a die which is a grid of electrical conductors having.
- the electrical conductors determine the webs to be formed and insulators determine the openings to be formed.
- Elelctrolysebad metal deposited on the electrical conductors in a galvanic manner to the desired thickness, after which the resulting carrier sheet is removed from the die.
- the support plate 18 thus has a plurality of webs 19 which form the openings 10.
- the webs 19 have a tapered in the direction of the contact surface shape, so that the openings 10 are funnel-shaped. Through this funnel-shaped design of the openings 10 it is achieved that no dirt particles or abrasion particles can settle in the openings.
- such support plates 18 are characterized by a high degree of rounding, which allows a particularly gentle thread guide.
- Fig. 4 the situation is shown in which the wetting agent 11 passes from the pressure chamber 6 through the openings 10 to the contact surface 8. At the contact surface 8, a filament strand of the filament bundle 3 is guided along.
- the electroformed carrier sheet 18 is preferably made of a nickel material. In this case, a high number of openings per surface unit on the support plate 18 can bring.
- the thickness of such an electroformed support sheet is usually on the order of 100 microns, although both thinner and thicker support plates can be produced.
- Fig. 5 is a further embodiment of a device according to the invention shown in the application in a spinning process.
- the wetting device 15 is formed by an elongate 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 shares 3.1 to 3.4.
- the filament shares 3.1 to 3.4 are extruded through separate spinnerets 2.1 to 2.4.
- the spinnerets 2.1 to 2.4 are arranged on a spinning head 1 for this purpose.
- the wetting device 15 is supplied with a wetting agent via a pump 12 and the tank 13.
- the support 4 has a pressure space 6 with which the wetting inserts 5.1 to 5.4 designed as screen plates are connected.
- Each of the screen plates is directly downstream of a thread guide 16 in the direction of yarn travel, by which each of the filament bundles 3.1 to 3.4 are combined to form a thread 16.1 to 16.4.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum Benetzen einer laufenden Filamentschar gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a device for wetting a running filament bundle according to the preamble of
Eine gattungsgemäße Vorrichtung geht beispielsweise aus der
Beim Spinnen eines synthetischen Fadens werden zunächst eine Vielzahl von strangförmigen Filamenten mittels einer Spinndüse extrudiert und als Filamentschar abgekühlt und zu einem Faden zusammengefaßt. Dabei wird während oder kurz vor dem Zusammenfassen der Filamentschar ein Präparationsmittel auf die Filamentschar aufgetragen, um einerseits einen Zusammenhalt der einzelnen Filamente herzustellen und andererseits zu hohe Reibeffekte bei den Fadenführungen zu vermeiden.When spinning a synthetic thread, a plurality of strand-shaped filaments are first extruded by means of a spinneret and cooled as a filament and combined to form a thread. In this case, a spin finish is applied to the filament bundle during or shortly before the collection of the filament bundle, on the one hand to produce a cohesion of the individual filaments and on the other hand to avoid high friction effects in the thread guides.
Bei der bekannten Vorrichtung wird der multifile Faden zum Auftragen des Präparationsmittels mit Kontakt über eine benetzte Kontaktfläche geführt. Die Kontaktfläche weist in dem kontaktierten Oberflächenbereich eine Vielzahl von porenförmigen Öffnungen auf, die durch eine Vielzahl von Kapillaren mit einem Druckraum verbunden sind. Die Kontaktfläche ist an einem Benetzungseinsatz ausgebildet, der aus einem porösen Werkstoff hergestellt ist. Hierzu werden vorzugsweise Sinterkeramikwerkstoffe verwendet, deren Anordnung und Verteilung der Kapillare und porenförmigen Öffnungen sehr unregelmäßig ist. Die bündelförmige Anordnung der Filamentschar erschwert zudem eine Verteilung des Auftrages auf jedem einzelnen Filamentstrang.In the known device, the multifilament yarn for applying the preparation agent is guided with contact over a wetted contact surface. The contact surface has in the contacted surface area a plurality of pore-shaped openings, which are connected by a plurality of capillaries to a pressure chamber. The contact surface is formed on a wetting insert made of a porous material. For this purpose, preferably sintered ceramic materials are used, the arrangement and distribution of the capillary and pore-shaped openings is very irregular. The bundle-shaped arrangement of the filament share also makes it difficult to distribute the order on each individual filament strand.
Demgemäß ist es Aufgabe der Erfindung, die bekannte Vorrichtung derart weiterzubilden, daß ständig ein gleichmäßig dosiert austretendes Benetzungsmittel an der Kontaktfläche vorhanden ist.Accordingly, it is an object of the invention to develop the known device such that constantly a uniformly metered exiting wetting agent is present at the contact surface.
Ein weiteres Ziel der Erfindung liegt darin, eine Vorrichtung zum Benetzen einer Filamentschar bereitzustellen, bei welchem jeder der Filamentstränge einer einen Faden bildenden Filamentschar gleichmäßig benetzt wird.Another object of the invention is to provide an apparatus for wetting a set of filaments in which each of the filament strands of a filament bundle forming a filament is uniformly wetted.
Diese Aufgabe wird durch eine Vorrichtung mit den Merkmalen nach Anspruch 1 gelöst.This object is achieved by a device having the features of
Vorteilhafte Weiterbildungen der Erfindung sind durch die Merkmale und Merkmalskombinationen der Unteransprüche definiert.Advantageous developments of the invention are defined by the features and feature combinations of the subclaims.
Die Erfindung zeichnet sich nun dadurch aus, daß jeder der an der Kontaktfläche geführte Bereich der Filamentschar auf ein gleichmäßig dosiert austretendes Benetzungsmittel trifft. Hierzu ist der Benetzungseinsatz erfindungsgemäß durch ein dünnwandiges Siebblech mit nach einem regelmäßigen Muster verteilt angeordneten Öffnungen gebildet. In jedem Flächenbereich der Kontaktfläche tritt eine durch das regelmäßige Muster der verteilt angeordneten Öffnungen gleiche Menge an Benetzungsmittel aus.The invention is now characterized in that each of the guided at the contact surface area of the filament flock meets a uniformly metered wetting agent exiting. For this purpose, the wetting insert is formed according to the invention by a thin-walled screen plate having openings arranged distributed in a regular pattern. In each surface area of the contact surface, an amount of wetting agent which is equal in size and distributed by the regular pattern of the openings emerges.
Durch die vorteilhafte Weiterbildung der Erfindung, bei welcher das Siebblech eine in Fadenlauf gerichtete Krümmung aufweist, um die Filamentschar mit einer Mindestumschlingung an der Kontaktfläche zu führen, wird eine Aufspreizung der Filamentschar erreicht, so daß im wesentlichen jeder Filamentstrang der Filamentschar mit Kontakt an der Kontaktfläche führbar ist. Durch diese Aufspreizung erhält jeder Filamentstrang eine im wesentlichen gleiche Menge an Benetzungsmittel.Due to the advantageous development of the invention, in which the screen plate has a curvature directed toward the thread to guide the filament bundle with a Mindestumschlingung at the contact surface, a spreading of the filament bundle is achieved, so that essentially every filament strand of the filament bundle with contact at the contact surface is feasible. By this spreading, each filament strand receives a substantially equal amount of wetting agent.
In Abhängigkeit von den Fadenlaufgeschwindigkeiten können Siebbleche mit unterschiedlichen Öffnungsquerschnitten eingesetzt werden. So werden bei hohen Fadenlaufgeschwindigkeiten vorzugsweise Siebbleche mit größeren Öffnungsquerschnitten bis zu 100 µm und bei entsprechend langsameren Fadengeschwindigkeiten Siebbleche mit kleineren Öffnungsquerschnitten bis zu 10 µm verwendet. Dabei hat sich gezeigt, daß der Kontaktbereich zwischen der Filamentschar und der Kontaktfläche sich über eine Länge von 5 bis max. 20 mm erstrecken sollte.Depending on the thread running speeds, screen plates with different opening cross sections can be used. Thus, at high yarn speeds preferably screen plates with larger opening cross-sections up to 100 microns and at correspondingly slower Thread speeds Screen plates with smaller opening cross sections up to 10 μm are used. It has been shown that the contact area between the filament and the contact surface over a length of 5 to max. Should extend 20 mm.
Um ein möglichst feines Muster mit hoher Genauigkeit und damit eine hohe Dosiergenauigkeit zu erhalten, haben sich insbesondere Siebbleche, die als ein elektrogeformtes Trägerblech mit durch Stege getrennten, durchgehenden Öffnungen ausgebildet sind, bewährt. Durch den galvanischen Herstellungsprozeß bedingt besitzen derartige Siebbleche eine hohe Kantenverrundung im Bereich der Kontaktfläche, die eine schonende Fadenführung ermöglicht. Zudem läßt sich damit eine hohe Anzahl an Öffnungen pro Oberflächeneinheit realisieren.In order to obtain the finest possible pattern with high accuracy and thus a high dosing accuracy, in particular screen plates, which are formed as an electroformed carrier plate with separate through webs, through openings have proven. Due to the galvanic production process, such screen plates have a high edge rounding in the area of the contact surface, which allows a gentle thread guide. In addition, this makes it possible to realize a high number of openings per surface unit.
Um ein Verschmutzen und damit eine teilweises Verschließen der Öffnungen zu vermeiden, hat sich die Weiterbildung der Erfindung als besonders vorteilhaft herausgestellt, bei welcher die zwischen den Öffnungen ausgebildeten Stege eine sich zur Kontaktfläche hin verjüngende Form aufweisen. Damit lassen sich trichterförmige Öffnungsquerschnitte ausbilden, die einen Selbstreinigungseffekt bewirken.In order to avoid fouling and thus a partial closure of the openings, the development of the invention has been found to be particularly advantageous in which the webs formed between the openings have a tapered to the contact surface shape. This can be funnel-shaped opening cross-sections form, which cause a self-cleaning effect.
Um möglichst lange Standzeiten zu erreichen, weist die Kontaktfläche des Siebbleches eine Beschichtung zum Verschleißschutz auf. Damit lassen sich zudem sehr reibungsarme Kontaktflächen erzeugen, die eine sehr schonende Fadenführung während der Benetzung zur Folge hat.In order to achieve the longest possible service life, the contact surface of the screen plate has a coating for wear protection. This can also produce very low-friction contact surfaces, which has a very gentle thread guide during wetting result.
Um möglichst mehrere jeweils einen Faden bildende Filamentschar gleichzeitig zu benetzen, wird die Weiterbildung der Erfindung bevorzugt, bei welcher an dem Träger mehrere Siebbleche im Abstand zueinander gehalten sind. Dabei ist jedem Siebblech eine Filamentschar zugeordnet.In order to simultaneously wet a plurality of filaments forming a thread at the same time, 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. Each filing plate is assigned a filament share.
Bei einer besonders vorteilhaften Weiterbildung der Erfindung wird der Benetzungseinsatz durch mehrere hintereinander liegende Siebbleche gebildet, wobei eines der Siebbleche relativ zu dem benachbarten Siebblech verschiebbar ist. Damit lässt sich die Austrittsmenge an der Oberfläche des äußeren Siebbleches verändern. So könnte beispielsweise dem ortsfesten äußeren Siebblech, welches die Benetzungsfläche zum Präparieren der Filamentschar bildet ein verschiebbares Siebblech zugeordnet werden. Das bewegliche Siebblech könnte zur Einhaltung einer konstanten Austrittsmenge derart justiert werden, so dass ein konstanter Flüssigkeitsdruck innerhalb des Druckraumes, in welchem das Präparationsmittel vorgehalten ist, vorherrscht. Damit lassen sich selbst bei niedrigen Drücken präzise Austrittsmengen an der Oberfläche des äußeren Siebbleches einstellen.In a particularly advantageous embodiment of the invention, the wetting insert is formed by a plurality of sieve plates lying one behind the other, wherein one of the screen plates is displaceable relative to the adjacent screen plate. This makes it possible to change the discharge amount on the surface of the outer screen plate. Thus, for example, the stationary outer screen plate, which forms the wetting surface for preparing the filament bundle, could be assigned a displaceable screen plate. The movable screen plate could be adjusted to maintain a constant discharge amount, so that a constant fluid pressure within the pressure chamber, in which the spin finish is maintained prevails. This makes it possible to set precise discharge quantities on the surface of the outer screen plate even at low pressures.
Weitere Vorteile der Erfindung sind im folgenden unter Hinweis auf die beigefügten Zeichnungen anhand einiger Ausführungsbeispiele näher beschrieben.Further advantages of the invention are described in more detail below with reference to the accompanying drawings with reference to some embodiments.
Es stellen dar:
- Fig.
- 1 schematisch eine Ansicht eines ersten Ausführungsbeispiels der erfindungsgemäßen Vorrichtung
- Fig. 2
- schematisch ein Ausschnitt des Ausführungsbeispiels aus
Fig. 1 - Fig. 3
- schematisch ein Querschnitt des Ausführungsbeispiels aus
Fig. 1 - Fig. 4
- schematisch ein Ausschnitt eines weiteren Ausführungsbeispiels der erfindungsgemäßen Vorrichtung
- Fig. 5
- schematisch eine Ansicht eines weiteren Ausführungsbeispiels der erfindungsgemäßen Vorrichtung
- FIG.
- 1 shows schematically a view of a first embodiment of the device according to the invention
- Fig. 2
- schematically a section of the embodiment
Fig. 1 - Fig. 3
- schematically a cross section of the embodiment of
Fig. 1 - Fig. 4
- schematically a section of another embodiment of the device according to the invention
- Fig. 5
- schematically a view of another embodiment of the device according to the invention
In
In dem Spinnprozeß werden die aus einer Spinndüse 2 ausgetretenen Filamentstränge der Filamentschar 3 gemeinsam abgekühlt und nach der Abkühlung mit einem Benetzungsmittel vorzugsweise einem Öl-Wasser-Emulgan benetzt. Hierzu ist die Benetzungsvorrichtung 15 in dem Konvergenzbereich der Filamentschar 3 angeordnet. Der Benetzungsvorrichtung 15 ist unmittelbar ein Fadenführer 16 zugeordnet, durch welchen die Filamentschar 3 zu einem Faden 17 zusammengeführt wird.In the spinning process, the filament strands of the
Die Beschreibung der Benetzungsvorrichtung 15 erfolgt gleichzeitig unter Bezug zu der
Die Benetzungsvorrichtung 15 wird durch einen Träger 4 gebildet, der einen geschlossenen Druckraum 6 enthält. Der Druckraum 6 innerhalb des Trägers 4 ist über eine Leitung 14 mit einer Pumpe 12 und einem Tank 13 verbunden. Der Träger 4 weist auf der Filamentschar 3 hingewandten Seite einen Benetzungseinsatz 5 auf, der unmittelbar mit dem Druckraum 6 verbunden ist. Der Benetzungseinsatz 5 wird durch ein dünnwandiges Siebblech 9 gebildet. Das Siebblech 9 enthält in einer Kontaktfläche 8 eine Vielzahl von Öffnungen 10, die in einem regelmäßigen Muster in dem Siebblech 9 angeordnet sind. Das Siebblech 9 weist auf der Außenseite die Kontaktfläche 8 auf. Die Kontaktfläche 8 ist vorzugsweise mit einer Beschichtung versehen, um eine möglichst reibungsarme und schonende Führung der Filamentschar 3 zu gewährleisten. Dabei ist das Siebblech 9 mit einer in Fadenlauf gerichteten Krümmung ausgebildet, um durch eine Mindestumschlingung der Filamentschar 3 an der Kontaktfläche 8 eine Aufspreizung der Filamentschar 3 zu erhalten.The wetting
Wie in
An dem Siebblech 9 sind vorzugsweise nur in dem unmittelbaren Kontaktbereich mit der Filamentschar 3 Öffnungen 10 enthalten. Die Länge des Kontaktbereiches L erstreckt sich dabei in Abhängigkeit vom Durchmesser der Öffnungen D und in Abhängigkeit von der Fadenlaufgeschwindigkeit von 5 mm bis hin zu 20 mm.On the
Um dabei eine ausreichende Benetzung der Filamentschar 3 zu erhalten, werden Siebbleches mit Öffnungsquerschnitten von 10 µm bis 100 µm verwendet. Die Größe der Öffnungen sowie die Länge der Kontaktfläche kann durch Auswechseln der Siebbleche oder durch Veränderung des Umschlingungswinkels der Fadenschar an dem Siebblech 9 auf einfache Art und Weise verändert werden. Somit lassen sich vorteilhaft feine oder dickere Titer mit ein und derselben Vorrichtung benetzen.In order to obtain a sufficient wetting of the
Bei der in
Bei den in
In
Bei der in
In
Das elektrogeformte Trägerblech 18 wird vorzugsweise aus einem Nickelwerkstoff hergestellt. Dabei lassen sich eine hohe Anzahl an Öffnungen pro Oberflächeneinheit an dem Trägerblech 18 einbringen. Die Dicke eines solchen elektrogeformten Trägerbleches liegt üblicherweise in der Größenordnung von 100 µm, obwohl sowohl dünnere als auch dickere Trägerbleche herstellbar sind.The
In
Die Versorgung der Benetzungsvorrichtung 15 mit einem Benetzungsmittel erfolgt über eine Pumpe 12 und dem Tank 13. Dabei besitzt der Träger 4 einen Druckraum 6, mit denen die als Siebbleche ausgebildeten Benetzungseinsätze 5.1 bis 5.4 verbunden sind. Jedem der Siebbleche ist unmittelbar in Fadenlaufrichtung ein Fadenführer 16 nachgeordnet, durch welchen jede der Filamentscharen 3.1 bis 3.4 zu je einem Faden 16.1 bis 16.4 zusammengefaßt werden.The wetting
- 11
- Spinnkopfspinning head
- 22
- Spinndüsespinneret
- 33
- Filamentscharfilament bundle
- 44
- Trägercarrier
- 55
- BenetzungseinsatzWetting use
- 66
- Druckraumpressure chamber
- 88th
- Kontaktflächecontact area
- 99
- Siebblechscreen plate
- 1010
- Öffnungenopenings
- 1111
- BenetzungsmittelWetting agent
- 1212
- Pumpepump
- 1313
- Tanktank
- 1414
- Leitungmanagement
- 1515
- BenetzungsvorrichtungWetting device
- 1616
- Fadenführerthread guides
- 1717
- Fadenthread
- 1818
- Trägerblechsupport plate
- 1919
- StegeStege
Claims (11)
- Device for wetting an advancing group of filaments (3) comprising a carrier (4), a wetting insert (5) mounted to the carrier (4), and a pressure chamber (6) formed inside the carrier (4) for receiving a wetting agent, with the wetting insert (5) including on an outer contact surface (8) contacted by the group of filaments (3), a plurality of openings (10), which connect to the pressure chamber (6), characterized in that the wetting insert (5) is formed by a thin-walled perforated plate (9) with openings (10) distributed in a regular pattern.
- Device of claim 1, characterized in that the perforated plate (9) comprises a curvature directed into the path of the yarn to guide the group of filaments (3) with a minimal looping over the contact surface (8).
- Device of claim 1 or 2, characterized in that the opening cross sections of the openings (10) in the perforated plate (9) have a diameter in a range from 10 µm to 100 µm.
- Device of claims 1-3, characterized in that the contact surface (8) extends in the direction of the advancing yarn over a length in a range from 5 mm to 20 mm.
- Device of one of claims 1-4, characterized in that the perforated plate (9) is constructed as an electroformed carrier plate (18) with continuous openings (10) separated by ridges (19).
- Device of claim 5, characterized in that the ridges (19) formed between the openings (10) have a shape tapering toward the contact surface, so that funnel-shaped opening cross sections are formed in the carrier plate (18).
- Device of claim 5 or 6, characterized in that the electroformed carrier plate (18) is made of nickel.
- Device of one of claims 1-7, characterized in that the perforated plate (9) includes on its contact surface (8) a coating for protection against wear.
- Device of one of the foregoing claims, characterized in that the carrier (4) mounts in spaced relationship a plurality of perforated plates (9), with one of a plurality of groups of filaments (3) which each form a yarn, being associated to each of the perforated plates (9).
- Device of one of claims 1-9, characterized in that a yarn guide (16) is arranged in spaced relationship in the path of the yarn downstream of the perforated plate (9).
- Device of one of claims 1-8, characterized in that the wetting insert is formed by a plurality of successively arranged perforated plates, with one of the perforated plates being displaceable relative an adjacent perforated plate.
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 EP1590512A1 (en) | 2005-11-02 |
EP1590512B1 true 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 |
WO2009141426A2 (en) * | 2008-05-23 | 2009-11-26 | Oerlikon Textile Gmbh & Co. Kg | Method for taking up and drawing a multifilament during melt-spinning, and apparatus for carrying out said method |
CN103270204B (en) | 2010-12-23 | 2016-10-05 | 欧瑞康纺织有限及两合公司 | For applying the equipment of 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 |
CN104114758B (en) * | 2012-01-24 | 2016-03-09 | 欧瑞康纺织有限及两合公司 | For the device of wetting many lines |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE544451A (en) * | 1955-01-17 | |||
NL112682C (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 CN CN200480003491.XA patent/CN1748050B/en not_active Expired - Fee Related
- 2004-01-29 DE DE502004012085T patent/DE502004012085D1/en not_active Expired - Lifetime
- 2004-01-29 EP EP04706165A patent/EP1590512B1/en not_active Expired - Lifetime
- 2004-01-29 WO PCT/EP2004/000787 patent/WO2004070092A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
CN1748050B (en) | 2011-05-04 |
WO2004070092A1 (en) | 2004-08-19 |
CN1748050A (en) | 2006-03-15 |
EP1590512A1 (en) | 2005-11-02 |
DE502004012085D1 (en) | 2011-02-17 |
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