EP2385880B1 - Multijet nozzle having plate slide valve - Google Patents
Multijet nozzle having plate slide valve Download PDFInfo
- Publication number
- EP2385880B1 EP2385880B1 EP09740096.4A EP09740096A EP2385880B1 EP 2385880 B1 EP2385880 B1 EP 2385880B1 EP 09740096 A EP09740096 A EP 09740096A EP 2385880 B1 EP2385880 B1 EP 2385880B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- base plate
- cover plate
- nozzle
- plate
- intake
- 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.)
- Not-in-force
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
- B05B1/20—Arrangements of several outlets along elongated bodies, e.g. perforated pipes or troughs, e.g. spray booms; Outlet elements therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/3026—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being a gate valve, a sliding valve or a cock
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
- B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
- B05C5/0275—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve
Definitions
- the invention relates to a nozzle closure, in particular a nozzle closure for closing a nozzle for dispensing material for a liquid film, wherein a base plate is provided with at least one through hole for connecting a Materiatzuschreibseite the base plate with a material discharge side of the base plate.
- the present invention relates to a method for closing a nozzle, in particular a method for closing a nozzle for dispensing material for a remplissigfölie.
- Nozzle seals and methods of the type mentioned are known from the prior art.
- document US3965860 shows a nozzle closure with a base plate having at least one through hole for connecting a material supply side of the base plate with a material discharge side of the base plate, with a at least partially arranged on the Matertalzufarseite the base plate cover plate with at least a first channel for connecting a Materiazuschreib the cover plate with a base plate side facing the cover plate, wherein the base plate and the cover plate for opening and closing a connection between the material supply and through hole are mutually displaceable.
- a nozzle closure of the type mentioned is also in the US 2,749,005 described.
- Object of the present invention is to improve nozzle seals and method of the type mentioned.
- the present invention encompasses the recognition that the nozzle closures and methods known from the prior art, in particular those known from the prior art
- the present invention has further recognized that the sealing ring used must be compressible in order to securely seal in order to reliably and, above all, rapidly feed the liquid foil to the nozzle To stop through holes in the base plate suffered multi-jet nozzle. Because such multi-jet nozzles for applying liquid film are used today, for example, in the protection of paints of new cars in the automotive industry. In such applications, the multi-jet nozzle is guided over the paint of the automobile on extremely fast moving robot arms, and due to the high moving speed of the robot arm relative to the paint surface of the automobile must be able to stop dispensing liquid film in less than 10 ms.
- the present invention has further recognized that the stamp pressing the sealing ring around the through holes in the base plate not only apply the seal for a secure seal to the base plates, but rather must press this seal with a relatively large pressure on the base plate.
- the invention has further recognized that it comes to a compression of the sealing ring and hereby again leads to a reduction in the volume of the stamp-side surface of the base plate, sealing ring and the sealing ring bearing punch formed cavity.
- this ultimately results in undesirable dripping of liquid foil material from the through holes of the base plate of the multi-jet nozzle.
- the invention also encompasses the recognition that the seals described above, known from the prior art, mostly consist of polyurethane, which is susceptible to splitting in the hard requirements described above and fatigues within a few days.
- connection in the opened state of the connection between the material supply and the through-hole, is formed from at least one through-hole and at least one first channel.
- the cover plate has at least one second channel for connecting a Spülftüsstechnikzuschreib the cover plate with a base plate side facing the cover plate.
- a second channel for supplying, preferably water-containing, rinsing agent for ringing the at least one through hole be opened in the base plate.
- a displacement of the base and cover plate against each other is made such that when opened connection with the supply of material, the detergent supply is closed and vice versa.
- the displacement of the base and cover plate is formed such that in a first position of the base and cover plate relative to each other, the material supply is connected to the at least one through hole of the base plate and in a second position of the base and cover plate to each other, the detergent supply to the at least one through hole of the base plate is connected
- the base plate has at least two through holes, wherein the base and cover plate substantially laterally to a connecting line between the at least two fürgangslöchem are mutually displaceable.
- the base and cover plates are displaceable relative to each other substantially parallel to a connecting line between at least two through-holes. This embodiment is particularly suitable in confined spaces that do not allow the above-mentioned lateral displacement.
- the total number of first and second channels in the cover plate is at least twice as large as the number of through holes in the base plate. In this way, for example, a passage for the supply of material and a channel for the supply of detergent can be made available to each through-hole.
- one of the base plate facing opening of the second channel of the cover plate is formed like a slit.
- the second channel for the Spülmiltelzucht can be particularly simple and inexpensive to produce.
- Embodiments in which an opening of the at least one first channel of the cover plate facing the base plate is substantially aligned with an opening of the at least one through hole of the base plate facing the cover plate are preferred. In this way, in the open state, i. made at the established connection between the material discharge side of the base plate with the material supply an optimal flow for the liquid film provided to prevent possible obstruction of the thus formed nozzle.
- sliding surfaces of the base plate facing side of the cover plate or the cover plate facing side of the base plate, when the base and cover plate are moved against each other are formed substantially completely flat. In this way, a high speed when closing the nozzle and at the same time a high wear resistance of the sliding surface and thus ensures a high maintenance of the device. It is particularly preferred if at least the - when moving the base and cover plate against each other - successive sliding surfaces of the base and cover plate substantially of the same material, preferably made of stainless steel.
- the base and cover plate are displaced substantially perpendicular to a flow direction of the material in the base plate.
- the first and / or the second channel have at least one cavity for receiving or buffering liquid-film material or rinsing agent, for example water.
- FIG. 1 shows a schematic cross section of a first embodiment 1 of a nozzle closure according to the invention for closing a nozzle for dispensing material for a liquid film and a method for closing a nozzle for Dispensing of material for a liquid film.
- the nozzle shutter 1 has a base plate 2 with three through holes 4 for connecting a material supply side 6 of the base plate 2 to a material discharge side 8 of the base plate 2. Furthermore, the nozzle closure 1 has a arranged on the material supply side 6 of the base plate 2 cover plate 10.
- the cover plate 10 has three first channels 12 for connecting a material supply of the cover plate 10 with one of the base plate 2 facing side 14 of the cover plate 10.
- Base plate 2 and cover plate 10 are for opening and closing a formed from the through holes 4 and the first channels 12 connection between the material supply and through holes 4 against each other according to the double arrows 16 against each other.
- the cover plate 10 has three second channels 18 for connecting a detergent supply of the cover plate 10 with one of the base plate 2 facing side 14 of the cover plate 10.
- Base plate 2 and cover plate 10 are for opening and closing the connection between the detergent supply and through holes 4 against each other so displaced that in the according to the in FIG. 1 illustrated state open connection of the through holes 4 with the material supply the connection of the through holes 4 with the detergent supply, ie in particular with the second channels 18, is closed.
- the cover plate 10 according to double arrows 16 of FIG.
- the cover plate 10 according to double arrows 16 are shifted relative to the base plate 2, that in a first in FIG. 1 illustrated position of the base plate 2 and cover plate 10, the supply of material is connected to the through holes 4, while in a second, in FIG. 1 not shown position of base plate 2 and cover plate 10, the detergent supply, that is, in the illustrated embodiment, the second channels 18 are connected to the through holes 4.
- base plate 2 and cover plate 10 are substantially parallel to a connecting line between the through holes 4 against each other.
- the number of first and second channels 12, 18 in the cover plate 10 is twice as large as the number of through holes 4 in the base plate 2.
- the base plate 2 facing openings of the first channels 12 of the cover plate 10 are aligned in the in FIG. 1 Likewise, with a corresponding displacement movement corresponding to the double arrows 16 of the base plate 2 facing openings of the second channels 18 with the cover plate facing openings of the through holes 4 of the base plate 2 would be substantially with the cover plate 10 facing openings of the through holes 4 aligned.
- the sides 6 and 14 essentially worked completely flat and consist essentially of stainless steel.
- FIG. 1 illustrated method of the first embodiment of the method for closing a nozzle for dispensing material for a liquid film are thus base plate 2 and cover plate 10 substantially perpendicular to a through the first channels 12 and the through holes 4 respectively defined flow direction of the material, in particular so the liquid film to be dispensed , shifted against each other.
- FIG. 2 shows a schematic cross section of a second embodiment 20 of a nozzle closure according to the invention for closing a nozzle for dispensing material for a liquid film or a method according to the invention for closing a nozzle for dispensing material for a liquid film.
- the second embodiment 20 of the FIG. 2 differs from the first embodiment 1 of the FIG. 1 in particular in that the base plate 2 at least 2, according to the in FIG. 3 illustrated supervision of the embodiment of the FIG. 2 has four through holes 4, wherein base plate 2 and cover plate 10 are substantially laterally displaceable relative to each other to a connecting line between the through holes 4.
- the cover plate 10 laterally to the above-mentioned connecting line relative to the base plate 2 can be pushed.
- FIG. 2 shows FIG. 2 below the nozzle closure 20, a surface 24 to be coated with the liquid film to be dispensed from the nozzle closure 20, and moreover schematically according to arrow 26, the discharge direction of liquid film or detergent from the through holes 4 of the base plate second
- FIG. 4 shows a schematic plan view of a third embodiment 30 of a nozzle closure according to the invention for closing a nozzle for dispensing material for a liquid film or a method according to the invention for closing a nozzle for dispensing material for a liquid film.
- the embodiment 30 of FIG. 4 differs from the first and second embodiments described above according to the FIGS. 1 to 3 In particular, in that an opening 32 of a slot-shaped second channel 34 (see FIG. 5 ) in the cover plate 10 for connecting a Spülmlttelzuschreib the cover plate 10 with the base plate 2 facing side 14 of the cover plate 10 is also formed slit-shaped.
- the cover plate 10 has a cavity 36 and 38 respectively over the first channels 12 and over the second channel 34 (see also FIGS FIGS. 5 and 6 ).
- FIG. 7 shows a schematic cross section of a fourth embodiment 40 of a nozzle closure according to the invention for closing a nozzle for dispensing material for a liquid film or a method according to the invention for closing a nozzle for dispensing material for a liquid film.
- the fourth embodiment 40 according to FIG. 7 differs in particular from the third embodiment according to the FIGS. 4 to 6 in that the cavities 36 and 38 have a different cross-sectional shape.
- the slot-shaped channel 34 is no longer centrally but left-aligned, while at the above the first channels 12 lying cavity 36 of the base plate 2 facing surfaces 36a, 36b and 35c are formed obliquely to adhere and thus clogging of the cavity 36 by liquid foil to prevent.
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Description
Die Erfindung betrifft einen Düsenverschluß, insbesondere einen Düsenverschluß zum Verschließen einer Düse zur Abgabe von Material für eine Flüssigfolie, wobei eine Grundplatte mit mindestens einem Durchgangsloch zum Verbinden einer Materiatzufuhrseite der Grundplatte mit einer Materialabgabeseite der Grundplatte vorgesehen ist.The invention relates to a nozzle closure, in particular a nozzle closure for closing a nozzle for dispensing material for a liquid film, wherein a base plate is provided with at least one through hole for connecting a Materiatzufuhrseite the base plate with a material discharge side of the base plate.
Darüber hinaus betrifft die vorliegende Erfindung ein Verfahren zum Verschließen einer Düse, insbesondere ein Verfahren zum Verschließen einer Düse zur Abgabe von Material für eine Flüssigfölie.Moreover, the present invention relates to a method for closing a nozzle, in particular a method for closing a nozzle for dispensing material for a Flüssigfölie.
Düsenverschlüsse und Verfahren der eingangs genannten Art sind aus dem Stand der Technik bekannt.Nozzle seals and methods of the type mentioned are known from the prior art.
Dokument
Ein Düsenverschluß der eingangs genannten Art wird auch in der
Aufgabe der vorliegenden Erfindung ist es, Düsenverschlüsse und Verfahren der eingangs genannten Art zu verbessern.Object of the present invention is to improve nozzle seals and method of the type mentioned.
Diese Aufgabe wird durch die Gegenstände der unabhängigen Ansprüche gelöstThis object is solved by the subject matters of the independent claims
Bevorzugte Ausführungsformen der Erfindung sind in den Unteransprüchen beschrieben.Preferred embodiments of the invention are described in the subclaims.
Die vorliegende Erfindung umfasst die Erkenntnis, dass die aus dem Stand der Technik bekannten Düsenverschlüsse und Verfahren, insbesondere die aus dem Stand derThe present invention encompasses the recognition that the nozzle closures and methods known from the prior art, in particular those known from the prior art
Technik bekannten Düsenverschlüsse und Verfahren zum Verschließen einer Düse zur Abgabe von Material für eine Flüssigfolie, zur Bildung von so genannten Multistrahldüsen zumeist Grundplatten mit mehreren Durchgangslöchern aufweisen. Bei diesen Multistrahldüsen wird dann mit Hilfe eines einen Dichtungsring tragenden Stempels der Materialfluß der Flüssigfolie durch die mehreren Durchgangslöcher in der Grundplatte beendet, in dem der im geöffneten Zustand zur Abgabe des Materials für die Flüssigfolie in einem Abstand zur Grundplatte positionierte Stempel auf die Grundplatte zubewegt wird, bis der Dichtungsring die Anordnung der die Multistrahldüse bildenden Durchgangslöcher In der Grundplatte gegenüber der Zufuhr von Flüssigfolienmaterial abdichtet.Technik known nozzle seals and methods for closing a nozzle for dispensing material for a liquid film, to form so-called multi-jet nozzles mostly base plates having a plurality of through holes. In these multi-jet nozzles, the material flow of the liquid film is then terminated by the plurality of through holes in the base plate by means of a seal ring bearing seal, in which the die positioned in the open state for discharging the material for the liquid foil at a distance from the base plate is moved toward the base plate until the sealing ring seals the arrangement of the multi-jet nozzle-forming through holes in the base plate against the supply of liquid foil material.
Im Zusammenhang mit den vorstehend beschriebenen bekannten Düsenverschlüssen bzw. Verfahren zum Verschließen von Düsen hat die vorliegende Erfindung weiterhin erkannt, dass der verwendete Dichtring kompressibel sein muss, um sicher zu dichten, um somit zuverlässig und vor allen Dingen auch schnell eine Materialzufuhr der Flüssigfolie zu den Durchgangslöchern der in der Grundplatte ausgelittenen Multistrahldüse zu stoppen. Denn derartige Multistrahldüsen zum Auftragen von Flüssigfolie werden heutzutage beispielsweise beim Schützen von Lacken von Neuwagen in der Automobilindustrie verwendet. Bei derartigen Verwendungen wird die Multistrahldüse an extrem schnell beweglichen Roboterarmen über den Lack des Automobils geführt und muss durch die hohe Bewegungsgeschwindigkeit des Roboterarms relative zur Lackoberfläche des Automobils in der Lage sein, innerhalb von weniger als 10 ms eine Abgabe von Flüssigfolie zu stoppen. Dabei hat nun die vorliegende Erfindung noch weiter erkannt, dass der den Dichtring um die Durchgangslöcher in der Grundplatte andrückende Stempel die Dichtung für ein sicheres Abdichten nicht nur an die Grundplatten anlegen, sondern vielmehr diese Dichtung mit relativ großem Druck auf die Grundplatte aufdrücken muss. Dabei hat die Erfindung weiter erkannt, dass es dabei zu einer Kompression des Dichtringes kommt und hiermit wiederum zu einer Verringerung des Volumens des zwischen stempelseitiger Oberfläche der Grundplatte, Dichtring und dem den Dichtring tragenden Stempel gebildeten Hohlraums kommt. Dies hat jedoch nach Erkenntnissen der vorliegenden Erfindung letztlich zur Folge, dass es zu einem unerwünschten Nachtropfen von Flüssigfolienmaterial aus den Durchgangslöchern der Grundplatte der Multistrahldüse kommt.In connection with the known nozzle closures described above, the present invention has further recognized that the sealing ring used must be compressible in order to securely seal in order to reliably and, above all, rapidly feed the liquid foil to the nozzle To stop through holes in the base plate suffered multi-jet nozzle. Because such multi-jet nozzles for applying liquid film are used today, for example, in the protection of paints of new cars in the automotive industry. In such applications, the multi-jet nozzle is guided over the paint of the automobile on extremely fast moving robot arms, and due to the high moving speed of the robot arm relative to the paint surface of the automobile must be able to stop dispensing liquid film in less than 10 ms. In this case, the present invention has further recognized that the stamp pressing the sealing ring around the through holes in the base plate not only apply the seal for a secure seal to the base plates, but rather must press this seal with a relatively large pressure on the base plate. In this case, the invention has further recognized that it comes to a compression of the sealing ring and hereby again leads to a reduction in the volume of the stamp-side surface of the base plate, sealing ring and the sealing ring bearing punch formed cavity. However, according to findings of the present invention, this ultimately results in undesirable dripping of liquid foil material from the through holes of the base plate of the multi-jet nozzle.
Weiterhin umfasst die Erfindung auch die Erkenntnis, dass die vorstehend beschriebenen, aus dem Stand der Technik bekannten Dichtungen zumeist aus Polyurethan bestehen, welches bei den zuvor beschriebenen harten Anforderungen verschteißanfällig ist und innerhalb von wenigen Tagen ermüdet. Dies bedeutet, dass der Stempel mit einem noch höheren Anpreßdruck die Dichtung an die Materialzufuhrseite der Grundplatte anpressen muss, was wiederum den zuvor beschriebenen Nachtropfeffekt erhöht, da das Volumen zwischen Materialzufuhrseite der Grundplatte, Dichtung und Stempel dann noch weiter verringert wird.Furthermore, the invention also encompasses the recognition that the seals described above, known from the prior art, mostly consist of polyurethane, which is susceptible to splitting in the hard requirements described above and fatigues within a few days. This means that the stamp with a even higher contact pressure must press the seal to the material supply side of the base plate, which in turn increases the dripping effect described above, since the volume between the material supply side of the base plate, seal and stamp is then further reduced.
Die Gegenstände der unabhängigen Ansprüche überwinden die vorstehend beschriebenen Probleme und Nachteile des Standes der Technik.The subject matters of the independent claims overcome the problems and disadvantages of the prior art described above.
Bei einer bevorzugten Auführungsform der Erfindung wird im geöffneten Zustand der Verbindung zwischen Materialzufuhr und Durchgangsloch die Verbindung aus mindestens einem Durchgangsloch und mindestens einem ersten Kanal gebildet.In a preferred embodiment of the invention, in the opened state of the connection between the material supply and the through-hole, the connection is formed from at least one through-hole and at least one first channel.
Bei der Erfindung weist die Deckplatte mindestens einen zweiten Kanal zum Verbinden einer Spülftüssigkeitzufuhr der Deckplatte mit einer der Grundplatte zugewandten Seite der Deckplatte auf. Auf diese Weise kann mittels der Erfindung nicht nur das mindestens eine Durchgangsloch durch die Verschiebebewegung von Grundplatte und Deckplatte relativ zueinander geöffnet und verschlossen werden, sondern, bevorzugt gleichzeitig, ein zweiter Kanal zum Zuführen von, bevorzugt Wasser enthaltenden, Spülmittel zum Reingen des mindestens einen Durchgangsloches in der Grundplatte geöffnet werden. Dieses Öffnen einer Verbindung von Spolmittetzuführ mit einer der Grundplatte zugewandten Seite der Deckplatte, bevorzugt an einer mit einem Durchgangsloch der Grundplatte fluchtenden Stelle, geschieht gleichzeitig mit dem Schließen der Verbindung von Materialzufuhr mit einem Durchgangsloch der Grundplatte. Mit anderen Worten wird bei der Erfindung eine Verschiebung von Grund- und Deckplatte gegeneinander derart vorgenommen, dass bei geöffneter Verbindung mit der Materialzufuhr die Spülmittelzufuhr geschlossen ist und umgekehrt. So ist das Verschieben von Grund- und Deckplatte derart ausgebildet, dass in einer ersten Position von Grund- und Deckplatte relativ zueinander die Materialzufuhr mit dem mindestens einen Durchgangsloch der Grundplatte verbunden ist und in einer zweiten Position von Grund- und Deckplatte zueinander die Spülmittelzufuhr mit dem mindestens einen Durchgangsloch der Grundplatte verbunden istIn the invention, the cover plate has at least one second channel for connecting a Spülftüssigkeitzufuhr the cover plate with a base plate side facing the cover plate. In this way, not only the at least one through hole can be opened and closed relative to each other by the sliding movement of the base plate and cover plate, but also, preferably simultaneously, a second channel for supplying, preferably water-containing, rinsing agent for ringing the at least one through hole be opened in the base plate. This opening of a connection of Spolmittetzuführ with one of the base plate side facing the cover plate, preferably on a aligned with a through hole of the base point occurs simultaneously with the closing of the connection of material supply with a through hole of the base plate. In other words, in the invention, a displacement of the base and cover plate against each other is made such that when opened connection with the supply of material, the detergent supply is closed and vice versa. Thus, the displacement of the base and cover plate is formed such that in a first position of the base and cover plate relative to each other, the material supply is connected to the at least one through hole of the base plate and in a second position of the base and cover plate to each other, the detergent supply to the at least one through hole of the base plate is connected
Bei der Erfindung weist die Grundplatte mindestens zwei Durchgangslocher auf, wobei Grund- und Deckplatte im Wesentlichen lateral zu einer Verbindungslinie zwischen den mindestens zwei Durchgangslöchem gegeneinander verschiebbar sind. Hierdurch ist eine besonders einfache Ausgestaltung der Erfindung möglich.In the invention, the base plate has at least two through holes, wherein the base and cover plate substantially laterally to a connecting line between the at least two Durchgangslöchem are mutually displaceable. As a result, a particularly simple embodiment of the invention is possible.
Bei einer alternativen Ausführungsform, bei der die Grundplatte mindestens zwei Durchgangslöcher aufweist, sind Grund- und Deckplatte im Wesentlichen parallel zu einer Verbindungslinie zwischen mindestens zwei Durchgangslöchern gegeneinander verschiebbar. Diese Ausführungsform bietet sich insbesondere bei beengten Platzverhältnissen an, die die oben genannte Lateralverschiebung nicht zulassen.In an alternative embodiment in which the base plate has at least two through-holes, the base and cover plates are displaceable relative to each other substantially parallel to a connecting line between at least two through-holes. This embodiment is particularly suitable in confined spaces that do not allow the above-mentioned lateral displacement.
Bevorzugt ist die Gesamtzahl von ersten und zweiten Kanälen in der Deckplatte mindestens doppelt so groß wie die Anzahl von Durchgangslöchern in der Grundplatte. Auf diese Weise kann jedem Durchgangsloch beispielsweise ein Kanal für die Materialzufuhr und ein Kanal für die Spülmittelzufuhr zur Verfügung gestellt werden.Preferably, the total number of first and second channels in the cover plate is at least twice as large as the number of through holes in the base plate. In this way, for example, a passage for the supply of material and a channel for the supply of detergent can be made available to each through-hole.
Bei einer weiteren bevorzugten Ausführungsform ist eine der Grundplatte zugewandte Öffnung des zweiten Kanals der Deckplatte schlitzartig ausgebildet. Auf diese Weise läßt sich der zweite Kanal für die Spülmiltelzufuhr besonders einfach und kostengünstig herstellen.In a further preferred embodiment, one of the base plate facing opening of the second channel of the cover plate is formed like a slit. In this way, the second channel for the Spülmiltelzufuhr can be particularly simple and inexpensive to produce.
Bevorzugt sind Ausführungsformen, bei denen eine der Grundplatte zugewandte Öffnung des mindestens einen ersten Kanals der Deckplatte mit einer der Deckplatte zugewandten Öffnung des mindestens einen Durchgangsloches der Grundplatte im Wesentlichen fluchtet. Auf diese Weise wird im geöffneten Zustand, d.h. bei hergestellter Verbindung zwischen der Materialabgabeseite der Grundplatte mit der Materialzufuhr eine optimale Strömung für die Flüssigfolie zur Verfügung gestellt, um möglichst Verstopfungen der so ausgebildeten Düse zu verhindern.Embodiments in which an opening of the at least one first channel of the cover plate facing the base plate is substantially aligned with an opening of the at least one through hole of the base plate facing the cover plate are preferred. In this way, in the open state, i. made at the established connection between the material discharge side of the base plate with the material supply an optimal flow for the liquid film provided to prevent possible obstruction of the thus formed nozzle.
Bei bevorzugten Ausführungsformen der Erfindung sind aufeinandergleitende Flächen der der Grundplatte zugewandten Seite der Deckplatte bzw. der der Deckplatte zugewandten Seite der Grundplatte, wenn Grund- und Deckplatte gegeneinander verschoben werden, im Wesentlichen vollkommen plan ausgebildet. Auf diese Weise ist eine hohe Geschwindigkeit beim Verschließen der Düse und gleichzeitig eine hohe Verschleißfestigkeit der aufeinander gleitenden Fläche und somit eine hohe Wartungsfreiheit der Vorrichtung gewährleistet. Dabei ist besonders bevorzugt, wenn zumindest die - beim Verschieben von Grund- und Deckplatte gegeneinander - aufeinander gleitenden Flächen von Grund- und Deckplatte im Wesentlichen aus dem gleichen Material, bevorzugt aus Edelstahl, bestehen.In preferred embodiments of the invention, sliding surfaces of the base plate facing side of the cover plate or the cover plate facing side of the base plate, when the base and cover plate are moved against each other, are formed substantially completely flat. In this way, a high speed when closing the nozzle and at the same time a high wear resistance of the sliding surface and thus ensures a high maintenance of the device. It is particularly preferred if at least the - when moving the base and cover plate against each other - successive sliding surfaces of the base and cover plate substantially of the same material, preferably made of stainless steel.
Bei dem erfindungsgemäßen Verfahren ist es besonders bevorzugt, wenn Grund- und Deckplatte im Wesentlichen senkrecht zu einer Fließrichtung des Materials in der Grundplatte verschoben werden.In the method according to the invention it is particularly preferred if the base and cover plate are displaced substantially perpendicular to a flow direction of the material in the base plate.
Bevorzugt weisen erster undl/der zweiter Kanal mindestens einen Hohlraum zum Aufnehmen bzw. Zwischenspeichern von Flüssigfolienmaterial bzw. Spülmittel, beispielsweise Wasser, auf.Preferably, the first and / or the second channel have at least one cavity for receiving or buffering liquid-film material or rinsing agent, for example water.
Bevorzugte Ausführungsformen der Erfindung werden nun noch näher mit Bezug auf die anhängende Zeichnung beschrieben. In den Zeichnungen sind gleiche oder funktionsgleiche Teile jeweils mit den gleichen Bezugszeichen bezeichnet. Die Zeichnung zeigt:
- Figur 1
- einen schematischen Querschnitt einer ersten Ausführungsform des erfindungsgemäßen Düsenverschlusses bzw. des erfindungsgemäßen Verfahrens;
Figur 2- einen schematischen Querschnitt einer zweiten Ausführungsform des erfindungsgemäßen Düsenverschlusses bzw. des erfindungsgemäßen Verfahrens;
- Figur 3
- eine Aufsicht auf die Ausführungsform der
;Figur 2 Figur 4- eine Aufsicht auf eine dritte Ausführungsform eines erfindungsgemäßen Düsenverschlusses bzw. eines erfindungsgemäßen Verfahrens;
- Figur 5
- einen Schnitt durch die Ausführungsform der
entlang der Linie B-B;Figur 4 Figur 6- einen Schnitt durch die Ausführungsform der
entlang der Linie A-A; undFigur 4 - Figur 7
- einen Querschnitt einer vierten Ausführungsform eines erfindungsgemäßen Düsenverschlusses bzw. eines erfindungsgemäßen Verfahrens.
- FIG. 1
- a schematic cross section of a first embodiment of the nozzle closure according to the invention and the method according to the invention;
- FIG. 2
- a schematic cross section of a second embodiment of the nozzle closure according to the invention and the method according to the invention;
- FIG. 3
- a plan view of the embodiment of the
FIG. 2 ; - FIG. 4
- a plan view of a third embodiment of a nozzle closure according to the invention or a method according to the invention;
- FIG. 5
- a section through the embodiment of the
FIG. 4 along the line BB; - FIG. 6
- a section through the embodiment of the
FIG. 4 along the line AA; and - FIG. 7
- a cross section of a fourth embodiment of a nozzle closure according to the invention or a method according to the invention.
Weiterhin weist die Deckplatte 10 drei zweite Kanäle 18 zum Verbinden einer Spülmittelzufuhr der Deckplatte 10 mit einer der Grundplatte 2 zugewandten Seite 14 der Deckplatte 10 auf. Grundplatte 2 und Deckplatte 10 sind zum Öffnen und Schließen der Verbindung zwischen Spülmittelzufuhr und Durchgangslöchern 4 derart gegeneinander verschiebbar, dass bei der gemäß dem in
Kurz gesagt kann somit bei der in
Die der Grundplatte 2 zugewandten Öffnungen der ersten Kanäle 12 der Deckplatte 10 fluchten in der in
Um ein möglichst reibungsfreies Gleiten der der Grundplatte 2 zugewandten Seite 14 der Deckplatte 10 auf der Materialzufuhrseite 6 der Grundplatte 2 zu ermöglichen sind die Seiten 6 und 14 im Wesentlichen vollkommen plan gearbeitet und bestehen im Wesentlich jeweils aus Edelstahl.In order to allow the most frictionless sliding of the
Gemäß der in
Claims (11)
- Nozzle closure (1, 20, 30, 40), in particular a nozzle closure (1, 20, 30, 40) for closing a nozzle for dispensing material for a liquid film,
having a base plate (2) with at least two through-holes (4) for connecting a material intake side (6) of the base plate (2) to a material dispensing side (8) of the base plate (2),
characterised by a cover plate (10) disposed at least partially on the material intake side (6) of the base plate (2) having at least a first passage (12) for connecting a material intake of the cover plate (10) to a side (14) of the cover plate (10) facing the base plate (2), and in order to open and close a connection between the material intake and through-holes (4), the base plate (2) and cover plate (10) are displaceable relative to one another laterally with respect to a connecting line between at least two through-holes,
and the cover plate (10) has at least one second passage (18, 34) for connecting a rinsing agent intake of the cover plate (10) to a side of the cover plate (10) facing the base plate (2),
and in order to open and close a connection between the rinsing agent intake and through-hole (4), the base plate (2) and cover plate (10) can be displaced relative to one another in such a way that when the connection of the through-hole (4) to the material intake is open, the connection of the through-hole (4) to the rinsing agent intake is closed and vice versa, and
the base plate (2) and cover plate (10) can be displaced relative to one another in such a way that when the base plate (2) and cover plate (10) are in a first position, the material intake is connected to the through-hole (4), and when the base plate (2) and cover plate (10) are in a second position, the rinsing agent intake is connected to the through-hole (4). - Nozzle closure (1, 20, 30, 40) as claimed in claim 1,
wherein, when the connection between the material intake and through-hole (4) is in the open state, the connection from at least one through-hole (4) and the at least one first passage (12) is established. - Nozzle closure (1, 20, 30, 40) as claimed in one of the preceding claims,
wherein the base plate (2) has at least two through-holes and the base plate (2) and cover plate (10) are displaceable relative to one another essentially parallel with a connecting line between at least two through-holes. - Nozzle closure (1, 20, 30, 40) as claimed in one of the preceding claims,
wherein the total number of first and second passages in the cover plate (10) is at least twice the number of through-holes in the base plate (2). - Nozzle closure (1, 20, 30, 40) as claimed in one of the preceding claims,
wherein an opening (32) of the second passage (18, 34) of the cover plate (10) facing the base plate (2) is of a slotted design. - Nozzle closure (1, 20, 30, 40) as claimed in one of the preceding claims,
wherein an opening of the at least one first passage (12) of the cover plate (10) facing the base plate (2) sits essentially flush with an opening of the at least one through-hole (4) of the base plate facing the cover plate (10). - Nozzle closure (1, 20, 30, 40) as claimed in one of the preceding claims,
wherein surfaces of the side (14) of the cover plate (10) facing the base plate (2) and the side (6) of the base plate (2) facing the cover plate (10) which slide on one another when the base plate (2) and cover plate (10) are displaced relative to one another are of an essentially completely flat design. - Nozzle closure (1, 20, 30, 40) as claimed in one of the preceding claims,
wherein surfaces of the side (14) of the cover plate (10) facing the base plate (2) and the side (6) of the base plate (2) facing the cover plate (10) which slide on one another when the base plate (2) and cover plate (10) are displaced relative to one another are made from essentially the same material, preferably stainless steel. - Nozzle, in particular a nozzle for dispensing a material for a liquid film, having a nozzle closure (1, 20, 30, 40) as claimed in one of the preceding claims.
- Method of closing a nozzle, in particular a method of closing a nozzle for dispensing material for a liquid film, comprising the steps:a base plate (2) having at least two through-holes (4) for connecting a material intake side (6) of the base plate (2) to a material dispensing side (8) of the base plate (2) anda cover plate (10) disposed at least partially on the material intake side (6) of the base plate (2) having at least a first passage (12) for connecting a material intake of the cover plate (10) to a side (14) of the cover plate (10) facing the base plate (2) are moved relative to one another laterally with respect to a connecting line between at least two through-holes in order to open and close a connection between the material intake and the at least two through-holes (4),and the cover plate (10) has at least one second passage (18, 34) for connecting a rinsing agent intake of the cover plate (10) to a side of the cover plate (10) facing the base plate (2),and in order to open and close a connection between the rinsing agent intake and through-hole (4), the base plate (2) and cover plate (10) are displaced relative to one another in such a way that when the connection of the through-hole (4) to the material intake is open, the connection of the through-hole (4) to the rinsing agent intake is closed and vice versa andthe base plate (2) and cover plate (10) are displaced relative to one another in such a way that when the base plate (2) and cover plate (10) are in a first position, the material intake is connected to the through-hole (4) and when the base plate (2) and cover plate (10) are in a second position, the rinsing agent intake is connected to the through-hole (4).
- Method as claimed in claim 10,
wherein the base plate (2) and cover plate (10) are displaced essentially perpendicular to a flow direction (26) of the material in the base plate (2).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009004666A DE102009004666A1 (en) | 2009-01-12 | 2009-01-12 | nozzle seal |
PCT/EP2009/063500 WO2010078975A1 (en) | 2009-01-12 | 2009-10-15 | Multijet nozzle having plate slide valve |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2385880A1 EP2385880A1 (en) | 2011-11-16 |
EP2385880B1 true EP2385880B1 (en) | 2013-04-17 |
Family
ID=41429264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09740096.4A Not-in-force EP2385880B1 (en) | 2009-01-12 | 2009-10-15 | Multijet nozzle having plate slide valve |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2385880B1 (en) |
DE (1) | DE102009004666A1 (en) |
HK (1) | HK1159021A1 (en) |
WO (1) | WO2010078975A1 (en) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3965860A (en) * | 1970-10-15 | 1976-06-29 | Pacific Adhesives, Inc. | Plywood manufacture using foamed glues |
US4018367A (en) * | 1976-03-02 | 1977-04-19 | Fedco Inc. | Manifold dispensing apparatus having releasable subassembly |
US4655394A (en) * | 1984-12-19 | 1987-04-07 | Spraying Systems Co. | Dual purpose foam generating and high pressure nozzle |
AT410754B (en) * | 1993-03-31 | 2003-07-25 | Nycomed Austria Gmbh | DEVICE FOR EVENLY APPLYING A SUSPENSION TO A COLLAGE CARRIER |
DE10018291A1 (en) * | 2000-04-13 | 2001-10-25 | Sieghard Schiller Gmbh & Co Kg | Device for coating workpieces |
DE102004018597B3 (en) * | 2004-04-16 | 2005-12-01 | Dürr Systems GmbH | Application head for producing a liquid film |
US7169228B2 (en) * | 2004-04-29 | 2007-01-30 | The Procter & Gamble Company | Extrusion applicator having linear motion operability |
DE102006060397A1 (en) * | 2006-12-20 | 2008-06-26 | Mankiewicz Gebr. & Co (Gmbh & Co Kg) | Fluid coating e.g. finish paint, applying device for surface of body of e.g. passenger car, has nozzle applying fluid on surface by air flow, and unit producing air flow, which deflects fluid between nozzle and surface |
-
2009
- 2009-01-12 DE DE102009004666A patent/DE102009004666A1/en not_active Ceased
- 2009-10-15 WO PCT/EP2009/063500 patent/WO2010078975A1/en active Application Filing
- 2009-10-15 EP EP09740096.4A patent/EP2385880B1/en not_active Not-in-force
-
2011
- 2011-12-19 HK HK11113698.5A patent/HK1159021A1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
HK1159021A1 (en) | 2012-07-27 |
DE102009004666A1 (en) | 2010-07-15 |
EP2385880A1 (en) | 2011-11-16 |
WO2010078975A1 (en) | 2010-07-15 |
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