EP2253384B2 - Coating device for elongated workpieces - Google Patents
Coating device for elongated workpieces Download PDFInfo
- Publication number
- EP2253384B2 EP2253384B2 EP10162699.2A EP10162699A EP2253384B2 EP 2253384 B2 EP2253384 B2 EP 2253384B2 EP 10162699 A EP10162699 A EP 10162699A EP 2253384 B2 EP2253384 B2 EP 2253384B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- workpiece
- coating
- coating device
- nozzles
- suction chamber
- 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
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0207—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the work being an elongated body, e.g. wire or pipe
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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
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0278—Arrangement or mounting of spray heads
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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
- B05B16/00—Spray booths
- B05B16/90—Spray booths comprising conveying means for moving objects or other work to be sprayed in and out of the booth, e.g. through the booth
- B05B16/95—Spray booths comprising conveying means for moving objects or other work to be sprayed in and out of the booth, e.g. through the booth the objects or other work to be sprayed lying on, or being held above the conveying means, i.e. not hanging from the conveying means
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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
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/04—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in flat form, e.g. fan-like, sheet-like
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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
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
- B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
Definitions
- the invention relates to a coating device for elongated workpieces.
- the workpiece is usually continuously through a suction, in which negative pressure prevails.
- the inlet and the outlet opening of the suction chamber, through which the workpiece is guided in this case has a die.
- the matrix is modeled on the outer contour of the workpiece, so that a small gap remains between the die opening and the workpiece.
- the suction chamber is connected to a vacuum pump to create negative pressure within the suction chamber. In this case, ambient air is sucked through the gap between the die and the workpiece in the suction chamber.
- coating material such as paint is supplied to the suction chamber, wherein due to the turbulence occurring in the air entering the chamber, a corresponding swirling of the coating medium and thus the generation of a mist is caused.
- the injection frame has an opening through which the workpiece is passed.
- the cross-section of the opening is modeled on the profile of the workpiece, so that a gap between the workpiece and spray frame is formed.
- Within the spray frame several holes are provided, which are aligned either horizontally or vertically. The hole points in the direction of the workpiece and serves as a nozzle.
- targeted delivery of the coating material takes place. This is particularly useful in complex profiles with grooves, etc., such as window frame profiles, to ensure complete, all-inclusive coating of the workpiece.
- the provision of the coating frame within the suction chamber has the disadvantage that, moreover, a coating mist is produced in the suction chamber and, as a result, deposition of the coating material takes place on the coating frame itself.
- the changing of the coating frame is also extremely expensive, since this, the suction chamber must be opened.
- the provision of a coating frame in the suction chamber is only suitable for a complete coating of the workpiece on all surfaces, since a coating mist is produced in the suction chamber.
- the object of the invention is to provide a coating device for elongated workpieces, in which the applicator is well accessible for applying a coating medium.
- the coating device according to the invention for elongated workpieces which are in particular elongated profiles made of wood or plastic, has a conveying device for moving the workpiece in the longitudinal direction.
- the conveying device is, for example, a conveyor belt, a plurality of driven and non-driven conveyor rollers and the like.
- the coating device has a suction chamber through which the workpiece is passed.
- the suction chamber is preferably used for removing excess coating material.
- the suction chamber is preferably connected to a suction device.
- the suction device can generate negative pressure in the suction chamber.
- the suction chamber has an inlet opening and an outlet opening, through which the workpiece is passed.
- a die is arranged in the inlet and / or the outlet opening.
- the die has a die opening whose cross-section substantially corresponds to the profile of the workpiece, wherein a gap is formed between the workpiece and the die opening.
- the coating device has an application device for applying a coating medium to at least one surface of the workpiece.
- the application device is integrated in the inlet die and / or the outlet die. As a result, it is possible in a simple manner to exchange the application device, for example, for cleaning clogged nozzles, etc.
- the application device preferably has nozzles pointing into the suction chamber.
- coating material such as a coating in Direction of the workpiece and also delivered in the direction of the interior of the suction. Not used for coating the workpiece surface coating material is thus removed via the suction chamber.
- the applicator integrated in the inlet and / or outlet die in a particularly preferred embodiment of the invention preferably has a plurality of nozzles. These can be arranged around the entire circumference of the die opening, so that a coating of all workpiece surfaces is possible. In particular, however, it is also possible to provide one or more nozzles only on individual sides of the die opening or, depending on the coating requirement, to switch off individual nozzles or not to supply them with coating material. In particular, by the ability to switch off or close individual nozzles, it is possible to coat with a die depending on the control of the nozzle different surfaces of the workpiece. For this purpose, it is preferred that each nozzle or a group of nozzles, each with a separate supply line, is connected to the supply of coating material. By switching off or closing a corresponding valve in the supply line, it is thus possible to switch off individual or groups of nozzles.
- a plurality of slot nozzles are arranged next to one another.
- at least two slot nozzles next to one another are then preferably connected to separate feed lines.
- a cover is provided, through which a part of the die opening is closed.
- the cross-sectional opening of the die can be varied in a simple manner in order to be able to process other, smaller workpieces with the aid of the same die. It is thus not necessary to replace the entire die, but only to use a cover in the die to coat another workpiece can.
- the nozzles provided in the region of the cover element are then preferably switched off or separated from the die. Also, a redirection or introduction of coating material into a channel of the cover is possible, so that a further nozzle is formed by the cover itself. This makes it possible to coat also an edge of the workpiece, which points in the direction of the cover and not the original die.
- a steering element is provided at the nozzle outlet.
- the steering element serves to deflect the coating medium in the direction of the workpiece.
- the steering element is in this case designed such that a deflection angle is adjustable. This can be done for example by changing the position of the steering element relative to the nozzle exit.
- the setting of the parking angle can also be realized by exchanging differently designed steering elements. In a preferred embodiment, this is realized in that the steering element is plate-shaped and at least partially covers the slot nozzle. In this case, it is preferable for the edge of the steering element pointing in the direction of the workpiece to be chamfered or to have a chamfer. Depending on the chamfer angle and / or size of the surface of the chamfers, a different setting angle can be defined.
- the embodiment of the coating device according to the invention shown in the figures has a suction chamber 10, which is connected to a suction device, not shown, such as a vacuum pump.
- a suction device such as a vacuum pump.
- the extraction of the air from the suction chamber 10 is effected by suction openings 12 arranged laterally, for example on a side wall of the suction chamber.
- the suction chamber which is for example rectangular, has an inlet opening 14 and an outlet opening 16. Through the two openings 14, 16, a movement of a workpiece 18 in the direction of the arrow 20 takes place.
- the transport of the workpiece 18, which is, for example, a board, is carried out by a conveyor 22, which is at least partially driven rollers in the illustrated embodiment.
- a die 24 is arranged both at the inlet opening 14 and at the outlet opening 16.
- the die 24 has a die opening 26 (FIG. Fig. 3 ) on.
- the cross section of the die opening corresponds to the cross section of the workpiece 18 to be coated, wherein the cross section of the die opening is slightly larger, so that between the workpiece 18 and an inner side 28 of the die opening 26, a gap is trained. Through this gap, ambient air is drawn from the suction device connected to the suction chamber 10, as indicated by the arrows 30 (FIG. Fig. 1 ), sucked into the suction chamber. By sucking air into the suction chamber leakage of coating medium such as paint from the suction chamber is avoided.
- the coating of an upper side 32 of the workpiece 18 takes place on the side of the outlet opening 16 of the suction chamber 10, that is shortly before the exit of the workpiece 18 from the suction chamber 10.
- 24 nozzles are arranged in the die, in particular as slit 36th , 38, 40 ( Fig. 4 ) are formed.
- the slot dies provided in the die are provided with a plurality of feed lines 42 (FIG. Fig. 2 ) connected.
- the supply lines 42 are connected to a reservoir, not shown, for the coating agent such as the paint. Further, the supply lines are connected to a pump for supplying the coating material to the slit nozzles 36, 38, 40.
- a deflection element 44 As can be seen, the slot nozzles 36, 38, 40 are covered by a deflection element 44.
- the deflector 44 has the in Fig. 4 illustrated cross section, wherein at one edge of the steering member 44, a chamfer 46 is provided.
- the chamfer 46 points in the direction of the workpiece, or in the direction of the die opening 26 as well as in the direction of the slot nozzles 36, 38, 40.
- the fastening of the steering elements 44 is effected by screws 48, wherein a screw head on an outer side 50 (FIGS. Fig. 4 ) of the steering element 44 abuts.
- the deflection angle of the coating medium on the surface 32 of the workpiece 18 can be adjusted.
- Fig. 3 For clarity, two steering elements 44, not shown, so that the slot-shaped openings of the slot nozzles 36, 38, 40 are visible.
- a cover 52 ( Fig. 2 ). By the cover 52, the die opening 26 is partially closed, so that a new smaller die opening 54 is formed. This makes it possible to coat smaller workpieces with further possibly other profile using the same die.
- the three right feed lines in Fig. 2 closed. With the help of the other supply lines, for example, only the slot nozzles 38 and 40 are then supplied with coating medium. The slot nozzles 36 are no longer supplied with coating medium. The lateral slot nozzle 40 is over the in Fig. 2 upper left feed line 42 supplied with coating medium when an all-round coating of the workpiece takes place.
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- Coating Apparatus (AREA)
Description
Die Erfindung betrifft eine Beschichtungsvorrichtung für langgestreckte Werkstücke.The invention relates to a coating device for elongated workpieces.
Zur Beschichtung langgestreckter Werkstücke ist es bekannt eine Beschichtung mit Hilfe von Vakuumkammern durchzuführen. Hierbei wird das Werkstück meist kontinuierlich durch eine Absaugkammer, in der Unterdruck herrscht, geführt. Die Einlass- und die Auslassöffnung der Absaugkammer, durch die dass Werkstück geführt wird, weist hierbei eine Matrize auf. Die Matrize ist der Außenkontur des Werkstücks nachgebildet, so dass zwischen der Matrizenöffnung und dem Werkstück ein geringer Spalt verbleibt. Die Absaugkammer ist mit einer Vakuumpumpe verbunden, um innerhalb der Absaugkammer Unterdruck zu erzeugen. Hierbei wird Umgebungsluft durch den Spalt zwischen Matrize und Werkstück in die Absaugkammer eingesaugt. Zur allseitigen Beschichtung der Werkstücke ist es bekannt, in der Absaugkammer einen Nebel aus Beschichtungsmaterial zu erzeugen. Hierzu wird Beschichtungsmaterial wie beispielsweise Lack der Absaugkammer zugeführt, wobei aufgrund der beim Lufteintreten in die Kammer auftretenden Verwirbelungen ein entsprechendes Verwirbeln des Beschichtungsmediums und somit das Erzeugen eines Nebels hervorgerufen wird.For coating elongate workpieces, it is known to perform a coating with the aid of vacuum chambers. Here, the workpiece is usually continuously through a suction, in which negative pressure prevails. The inlet and the outlet opening of the suction chamber, through which the workpiece is guided, in this case has a die. The matrix is modeled on the outer contour of the workpiece, so that a small gap remains between the die opening and the workpiece. The suction chamber is connected to a vacuum pump to create negative pressure within the suction chamber. In this case, ambient air is sucked through the gap between the die and the workpiece in the suction chamber. For all-round coating of the workpieces, it is known to produce a mist of coating material in the suction chamber. For this purpose, coating material such as paint is supplied to the suction chamber, wherein due to the turbulence occurring in the air entering the chamber, a corresponding swirling of the coating medium and thus the generation of a mist is caused.
Ferner ist es aus
Um beispielsweise ein dreiseitiges Beschichtung eines vierseitigen Werkstücks vorzunehmen, ist es bekannt, innerhalb der Absaugkammer ein Auflageelement, wie ein Auflageblech vorzusehen. Dieses liegt an der nicht zu beschichtenden Fläche des Werkstücks an. Da das Werkstück jedoch üblicherweise nicht vollständig eben ist, kann zwischen Auflageblech und dem Werkstück ein Spalt auftreten. Dies führt dazu, dass auch Beschichtungsmedium an die nicht zu beschichtende Oberfläche gelangt. Diese Problematik besteht insbesondere wenn es sich bei dem Werkstück um ein Naturprodukt wie Holz handelt.For example, to make a three-sided coating of a four-sided workpiece, it is known to provide a support element, such as a support plate, within the suction chamber. This is due to the non-coated surface of the workpiece. However, since the workpiece is usually not completely flat, a gap may occur between the support plate and the workpiece. As a result, coating medium also reaches the surface that is not to be coated. This problem exists in particular when the workpiece is a natural product such as wood.
Aufgabe der Erfindung ist es, eine Beschichtungsvorrichtung für langgestreckte Werkstücke zu schaffen, bei der die Auftrageinrichtung zum Auftragen eines Beschichtungsmediums gut zugänglich ist.The object of the invention is to provide a coating device for elongated workpieces, in which the applicator is well accessible for applying a coating medium.
Die Lösung der Aufgabe erfolgt erfindungsgemäß durch die Merkmale des Anspruchs 1.The object is achieved according to the invention by the features of claim 1.
Die erfindungsgemäße Beschichtungsvorrichtung für langgestreckte Werkstücke, bei denen es sich insbesondere um langgestreckte Profile aus Holz oder Kunststoff handelt, weist eine Fördereinrichtung zum Bewegen des Werkstücks in Längsrichtung auf. Bei der Fördereinrichtung handelt es sich beispielsweise um ein Förderband, mehrere angetriebene und nicht angetriebene Förderrollen und dergleichen, Ferner weist die Beschichtungsvorrichtung eine Absaugkammer auf, durch die das Werkstück hindurchgeführt wird. Die Absaugkammer dient hierbei vorzugsweise zum Abführen überschüssigen Beschichtungsmaterials. Hierzu ist die Absaugkammer vorzugsweise mit einer Absaugeinrichtung verbunden. Durch die Absaugeinrichtung kann Unterdruck in der Absaugkammer erzeugt werden.The coating device according to the invention for elongated workpieces, which are in particular elongated profiles made of wood or plastic, has a conveying device for moving the workpiece in the longitudinal direction. The conveying device is, for example, a conveyor belt, a plurality of driven and non-driven conveyor rollers and the like. Furthermore, the coating device has a suction chamber through which the workpiece is passed. The suction chamber is preferably used for removing excess coating material. For this purpose, the suction chamber is preferably connected to a suction device. The suction device can generate negative pressure in the suction chamber.
Die Absaugkammer weist eine Einlassöffnung sowie eine Auslassöffnung auf, durch die das Werkstück hindurchgeführt wird. In der Einlass- und/oder der Auslassöffnung ist eine Matrize angeordnet. Die Matrize weist eine Matrizenöffnung auf, deren Querschnitt im wesentlichen dem Profil des Werkstücks entspricht, wobei zwischen dem Werkstück und der Matrizenöffnung ein Spalt ausgebildet ist. Ferner weist die Beschichtungsvorrichtung eine Auftrageinrichtung zum Auftragen eines Beschichtungsmediums auf zumindest eine Oberfläche des Werkstücks auf. Erfindungsgemäß ist die Auftrageinrichtung in die Einlassmatrize und/oder die Auslassmatrize integriert. Hierdurch ist es auf einfache Weise möglich, die Auftragseinrichtung beispielsweise zum Reinigen verstopfter Düsen etc. auszutauschen.The suction chamber has an inlet opening and an outlet opening, through which the workpiece is passed. In the inlet and / or the outlet opening a die is arranged. The die has a die opening whose cross-section substantially corresponds to the profile of the workpiece, wherein a gap is formed between the workpiece and the die opening. Furthermore, the coating device has an application device for applying a coating medium to at least one surface of the workpiece. According to the invention, the application device is integrated in the inlet die and / or the outlet die. As a result, it is possible in a simple manner to exchange the application device, for example, for cleaning clogged nozzles, etc.
Insbesondere bei in die Matrize integrierten Auftragseinrichtungen ist ein Umbauen der Beschichtungsvorrichtung für Werkstücke mit anderem Querschnitt schneller möglich. Dies liegt darin begründet, dass gleichzeitig mit dem Austauschen der Matrizen ein Austauschen der Auftrageinrichtung erfolgt. Es ist somit nicht erforderlich, eine beispielsweise innerhalb der Absaugkammer angeordnete Auftrageinrichtung zusätzlich zu einer Einlass- und Auslassmatrize auszutauschen.In particular with application devices integrated into the matrix, a conversion of the coating device for workpieces with a different cross section is possible more rapidly. This is due to the fact that an exchange of the applicator takes place simultaneously with the replacement of the matrices. It is thus not necessary to replace an applicator arranged, for example, within the suction chamber in addition to an inlet and outlet die.
Vorzugsweise weist die Auftragseinrichtung in die Absaugkammer weisende Düsen auf. Durch die insbesondere als Schlitzdüsen ausgeführten Düsen wird Beschichtungsmaterial wie ein Beschichtungslack in Richtung des Werkstücks und auch in Richtung des Inneren der Absaugkammer abgegeben. Nicht zur Beschichtung der Werkstückoberfläche genutztes Beschichtungsmaterial wird somit über die Absaugkammer abgeführt.The application device preferably has nozzles pointing into the suction chamber. By running in particular as a slot nozzles nozzles coating material such as a coating in Direction of the workpiece and also delivered in the direction of the interior of the suction. Not used for coating the workpiece surface coating material is thus removed via the suction chamber.
Die in besonders bevorzugter Ausführungsform der Erfindung in die Einlass- und/oder Auslassmatrize integrierte Auftrageinrichtung weist vorzugsweise mehrere Düsen auf. Diese können um den gesamten Umfang der Matrizenöffnung angeordnet sein, so dass ein Beschichten aller Werkstückoberflächen möglich ist. Insbesondere ist es jedoch auch möglich, nur an einzelnen Seiten der Matrizenöffnung eine oder mehrere Düsen vorzusehen oder je nach Beschichtungsanforderung einzelne Düsen auszuschalten bzw. nicht mit Beschichtungsmaterial zu versorgen. Insbesondere durch die Möglichkeit einzelne Düsen auszuschalten oder zu verschließen, ist es möglich, mit einer Matrize je nach Ansteuerung der Düsen unterschiedliche Oberflächen des Werkstücks zu beschichten. Hierzu ist es bevorzugt, dass jede Düse oder eine Gruppe von Düsen mit jeweils einer gesonderten Zuführleitung, zur Zufuhr von Beschichtungsmaterial verbunden ist. Durch Abschalten oder Schließen eines entsprechenden Ventils in der Zuführleitung ist es somit möglich, einzelne oder Gruppen von Düsen abzuschalten.The applicator integrated in the inlet and / or outlet die in a particularly preferred embodiment of the invention preferably has a plurality of nozzles. These can be arranged around the entire circumference of the die opening, so that a coating of all workpiece surfaces is possible. In particular, however, it is also possible to provide one or more nozzles only on individual sides of the die opening or, depending on the coating requirement, to switch off individual nozzles or not to supply them with coating material. In particular, by the ability to switch off or close individual nozzles, it is possible to coat with a die depending on the control of the nozzle different surfaces of the workpiece. For this purpose, it is preferred that each nozzle or a group of nozzles, each with a separate supply line, is connected to the supply of coating material. By switching off or closing a corresponding valve in the supply line, it is thus possible to switch off individual or groups of nozzles.
Insbesondere bei als Schlitzdüsen ausgebildeten Düsen, ist es bevorzugt, dass mehrere Schlitzdüsen nebeneinander angeordnet sind. Insbesondere an Breitseiten eines Werkstücks ist es bevorzugt, mindestens zwei Schlitzdüsen nebeneinander anzuordnen. Diese sind sodann vorzugsweise mit gesonderten Zuführleitungen verbunden. Hierdurch ist ein Abdeckelement vorgesehen, durch das ein Teil der Matrizenöffnung verschließbar ist. Hierdurch kann auf einfache Weise die Querschnittsöffnung der Matrize variiert werden, um andere, kleinere Werkstücke mit Hilfe der selben Matrize verarbeiten zu können. Es ist somit nicht erforderlich, die gesamte Matrize auszuwechseln, sondern lediglich ein Abdeckelement in die Matrize einzusetzen, um ein anderes Werkstück beschichten zu können. Die im Bereich des Abdeckelements vorgesehenen Düsen werden sodann vorzugsweise ausgeschaltet bzw. von der Matrize getrennt. Auch ein Um- bzw. Einleiten von Beschichtungsmaterial in einen Kanal des Abdeckelements ist möglich, so dass durch das Abdeckelement selbst eine weitere Düse ausgebildet ist. Hierdurch ist es möglich, auch eine Kante des Werkstücks zu beschichten, die in Richtung des Abdeckelements und nicht der Ursprungsmatrize weist.In particular, in the case of nozzles designed as slot nozzles, it is preferred that a plurality of slot nozzles are arranged next to one another. In particular on broad sides of a workpiece, it is preferable to arrange at least two slot nozzles next to one another. These are then preferably connected to separate feed lines. As a result, a cover is provided, through which a part of the die opening is closed. As a result, the cross-sectional opening of the die can be varied in a simple manner in order to be able to process other, smaller workpieces with the aid of the same die. It is thus not necessary to replace the entire die, but only to use a cover in the die to coat another workpiece can. The nozzles provided in the region of the cover element are then preferably switched off or separated from the die. Also, a redirection or introduction of coating material into a channel of the cover is possible, so that a further nozzle is formed by the cover itself. This makes it possible to coat also an edge of the workpiece, which points in the direction of the cover and not the original die.
In einer bevorzugten Weiterbildung der erfindungsgemäßen Düse, bei der es sich insbesondere um eine Schlitzdüse handelt, ist an dem Düsenausgang ein Lenkelement vorgesehen. Das Lenkelement dient zum Ablenken des Beschichtungsmediums in Richtung des Werkstücks. Vorzugsweise ist das Lenkelement hierbei derart ausgebildet, dass ein Ablenkwinkel einstellbar ist. Dies kann beispielsweise durch Verändern der Lage des Lenkelements relativ zum Düsenausgang erfolgen. Das Einstellen des Abstellwinkels kann auch durch Austauschen unterschiedlich ausgebildeter Lenkelemente realisiert werden. In einer bevorzugten Ausführungsform ist dies dadurch realisiert, dass das Lenkelement plattenförmig ausgebildet ist und die Schlitzdüse zumindest teilweise überdeckt. Bevorzugt ist hierbei, dass die in Richtung des Werkstücks weisende Kante des Lenkelements abgeschrägt ist, bzw. eine Fase aufweist. Je nach Fasenwinkel und/oder Größe der Oberfläche der Fasen kann ein unterschiedlicher Abstellwinkel definiert werden.In a preferred embodiment of the nozzle according to the invention, which is in particular a slot nozzle, a steering element is provided at the nozzle outlet. The steering element serves to deflect the coating medium in the direction of the workpiece. Preferably, the steering element is in this case designed such that a deflection angle is adjustable. This can be done for example by changing the position of the steering element relative to the nozzle exit. The setting of the parking angle can also be realized by exchanging differently designed steering elements. In a preferred embodiment, this is realized in that the steering element is plate-shaped and at least partially covers the slot nozzle. In this case, it is preferable for the edge of the steering element pointing in the direction of the workpiece to be chamfered or to have a chamfer. Depending on the chamfer angle and / or size of the surface of the chamfers, a different setting angle can be defined.
Nachfolgend wird die Erfindung anhand einer bevorzugten Ausführungsform unter Bezugnahme auf die anliegenden Zeichnungen näher erläutert.The invention will be explained in more detail with reference to a preferred embodiment with reference to the accompanying drawings.
Es zeigen:
- Fig. 1
- eine schematische Seitenansicht der Beschichtungsvorrichtung im Schnitt,
- Fig. 2
- eine schematische Schnittansicht in Richtung der Linie II-II in
Fig. 1 bzw. eine schematische Draufsicht einer Außenseite der Beschichtungsvorrichtung, - Fig. 3
- eine schematische Draufsicht auf eine Rückseite einer Matrize, und
- Fig. 4
- eine schematische Schnittansicht einer Ausführungsform eines mit der Matrize verbundenen Lenkelements.
- Fig. 1
- a schematic side view of the coating device in section,
- Fig. 2
- a schematic sectional view in the direction of the line II-II in
Fig. 1 or a schematic plan view of an outer side of the coating device, - Fig. 3
- a schematic plan view of a back of a die, and
- Fig. 4
- a schematic sectional view of an embodiment of a steering element connected to the die.
Das in den Figuren dargestellte Ausführungsbeispiel der erfindungsgemäßen Beschichtungsvorrichtung weist eine Absaugkammer 10 auf, die mit einer nicht dargestellten Saugeinrichtung, wie einer Vakuumpumpe verbunden ist. Die Absaugung der Luft aus der Absaugkammer 10 erfolgt durch seitlich, beispielsweise an einer Seitenwand der Absaugkammer angeordnete Absaugöffnungen 12. Die beispielsweise quaderförmig ausgebildete Absaugkammer weist eine Eintrittsöffnung 14 sowie eine Austrittsöffnung 16 auf. Durch die beiden Öffnungen 14, 16 erfolgt ein Hindurchbewegen eines Werkstücks 18 in Richtung des Pfeils 20.The embodiment of the coating device according to the invention shown in the figures has a
Der Transport des Werkstücks 18, bei dem es sich beispielsweise um ein Brett handelt, erfolgt durch eine Fördereinrichtung 22, bei der es sich im dargestellten Ausführungsbeispiel um zumindest teilweise angetriebene Rollen handelt.The transport of the
Im dargestellten Ausführungsbeispiel ist sowohl an der Einlassöffnung 14 als auch an der Auslassöffnung 16 eine Matrize 24 angeordnet.In the illustrated embodiment, a
Die Matrize 24 weist einen Matrizenöffnung 26 (
Im dargestellten Ausführungsbeispiel erfolgt das Beschichten einer Oberseite 32 des Werkstücks 18 auf der Seite der Ausgangsöffnung 16 der Absaugkammer 10, das heißt kurz vor dem Austritt des Werkstücks 18 aus der Absaugkammer 10. Hierzu sind in der Matrize 24 Düsen angeordnet, die insbesondere als Schlitzdüsen 36, 38, 40 (
Wie aus
Je nach Winkel der Fase 46 kann der Ablenkwinkel des Beschichtungsmediums auf die Oberfläche 32 des Werkstücks 18 eingestellt werden.Depending on the angle of the
In
Je nachdem welche der Seiten des Werkstücks 18 beschichtet werden soll, ist es möglich einzelne Zuführleitungen 42 zu den Schlitzdüsen 36, 38, 40 zu unterbrechen bzw. die entsprechenden Zuführventile zu schließen. Hierdurch ist es auf einfache Weise möglich, nur eine einzige Oberfläche zu beschichten, wobei aufgrund der erfindungsgemäßen Anordnung der Auftragseinrichtung, das heißt im wesentlichen der Düsen und der dazugehörigen Bauteile innerhalb der Matrize ein Beschichten der übrigen Oberflächen durch Beschichtungsnebel oder Spritzer vermieden ist. Überflüssiges Beschichtungsmaterial wird durch die obere Absaugöffnung 12 (
Es ist vorgesehen, in die Matrizenöffnung 26 ein Abdeckelement 52 (
Claims (10)
- A coating device for elongated workpieces, comprising
a conveyer device (22) for moving the workpiece (18) in a longitudinal direction (20),
a suction chamber (10) through which the workpiece (18) is passed, and
an application device (36,38,40,42,44) for applying a coating medium onto at least one surface (32) of the workpiece (18),
characterized in that
a matrix (24) arranged at an inlet opening (14) and/or an outlet opening (16) of the suction chamber (10) is provided, said matrix (24) comprising a matrix opening having a cross section substantially corresponding to the profile of the workpiece, wherein a gap is formed between the workpiece and the matrix opening,
wherein the application device (36,38,40,42,44) is integrated in the inlet matrix (24) and/or the outlet matrix (24), and
wherein the matrix opening (26) is adapted to be partially closed by a cover element (52). - The coating device according to claim 1, characterized in that the application device (36,38,40,42,44) comprises nozzles (36,38,40) facing into the suction chamber (10), said nozzles being preferably formed as slotted nozzles.
- The coating device according to claim 2, characterized in that at least one of the plurality of nozzles (36,38,40) is connected to at least one feed line (42).
- The coating device according to any one of claims 1 to 3, characterized in that that the application device (36,38,40,42,44) comprises, particularly for coating a broadside (32) of the workpiece (10), at least two mutually adjacent nozzles (36,38), particularly slotted nozzles.
- The coating device according to claim 3 or 4, characterized in that at least a part of the feed lines (42) can be switched off.
- The coating device according to any one of claims 1 to 5, characterized by a steering element (44), arranged at a nozzle outlet, for deflecting the coating medium in the direction of the workpiece (18).
- The coating device according to claim 6, characterized in that the steering element (44) is designed in such a manner that a deflection angle can be set.
- The coating device according to claim 6 or 7, characterized in that the steering element (44) is of a plate-shaped design for covering the outlet of a slotted nozzle (36,38,40).
- The coating device according to any one of claims 6 to 8, characterized in that the steering element (44), on an edge facing in the direction of the workpiece (18), comprises a bevel (46) for fixing the deflection angle.
- The coating device according to any one of claims 1 to 9, characterized in that the suction chamber (10) is connected to a suction device for vacuum generation.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009021782A DE102009021782A1 (en) | 2009-05-18 | 2009-05-18 | Coating device for elongated workpieces |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2253384A1 EP2253384A1 (en) | 2010-11-24 |
EP2253384B1 EP2253384B1 (en) | 2016-03-23 |
EP2253384B2 true EP2253384B2 (en) | 2019-08-28 |
Family
ID=42359440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10162699.2A Not-in-force EP2253384B2 (en) | 2009-05-18 | 2010-05-12 | Coating device for elongated workpieces |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2253384B2 (en) |
DE (1) | DE102009021782A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202010010497U1 (en) * | 2010-07-21 | 2011-10-24 | Delle Vedove Deutschland Gmbh | Coating device for elongated workpieces |
TWM429172U (en) * | 2011-11-18 | 2012-05-11 | Hulk Energy Technology Co Ltd | Surface treatment apparatus |
DE102013201487B4 (en) | 2013-01-30 | 2021-11-11 | Cefla Deutschland Gmbh | Paint application device and method for viscosity adjustment |
DE102015205338A1 (en) | 2015-03-24 | 2016-09-29 | Cefla Deutschland Gmbh | drying device |
CN107971171A (en) * | 2017-09-30 | 2018-05-01 | 科澳特石油工程技术有限公司 | The outer oiling device of petroleum pipeline |
CN108355868B (en) * | 2018-01-24 | 2019-12-20 | 江苏盐邦泵业制造有限公司 | Water conservancy pipeline outer wall mopping device |
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US1643330A (en) † | 1926-08-27 | 1927-09-27 | Paul J Barord | Method of and apparatus for coating |
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DE102004057299A1 (en) † | 2004-11-26 | 2006-06-01 | Josef Schiele Ohg | Apparatus for applying a coating medium to elongated workpieces with a guide device |
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US1682823A (en) | 1927-08-26 | 1928-09-04 | Sterling Varnish Company | Coating apparatus |
NL131679C (en) | 1961-01-05 | |||
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DE9214293U1 (en) | 1992-10-22 | 1993-03-11 | Fa. Josef Schiele, 5476 Niederzissen | Continuous vacuum coating chamber |
DE9316759U1 (en) * | 1993-11-03 | 1994-01-13 | Fa. Josef Schiele, 56651 Niederzissen | Vacuum continuous all-round coating chamber |
DE29520824U1 (en) | 1995-04-19 | 1996-04-04 | Venjakob Maschinenbau GmbH & Co. KG, 33378 Rheda-Wiedenbrück | Paint spraying system |
US20060083863A1 (en) | 2004-10-18 | 2006-04-20 | Christopher Cavallaro | Golf ball having sprayed layer of liquid polybutadiene |
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2009
- 2009-05-18 DE DE102009021782A patent/DE102009021782A1/en not_active Ceased
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2010
- 2010-05-12 EP EP10162699.2A patent/EP2253384B2/en not_active Not-in-force
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US1643330A (en) † | 1926-08-27 | 1927-09-27 | Paul J Barord | Method of and apparatus for coating |
US1726941A (en) † | 1927-08-26 | 1929-09-03 | Sterling Varnish Company | Apparatus for coating |
GB2280864A (en) † | 1993-08-13 | 1995-02-15 | Komfort Systems Ltd | Vacuum coating elongate aluminium sections with UV curable acrylic lacquer |
DE4337438A1 (en) † | 1993-11-03 | 1995-05-04 | Schiele Josef | Method for continuous-flow all-round vacuum coating |
US5482745A (en) † | 1993-11-29 | 1996-01-09 | Dana Corporation | Spray coating process and apparatus |
GB2329137A (en) † | 1997-09-13 | 1999-03-17 | Universal Finishing Systems Co | Vacuum coating apparatus |
US20060083862A1 (en) † | 2004-10-15 | 2006-04-20 | Santo P. Rapone | Method for applying a coating material to the surface of foam cores |
DE102004057299A1 (en) † | 2004-11-26 | 2006-06-01 | Josef Schiele Ohg | Apparatus for applying a coating medium to elongated workpieces with a guide device |
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Also Published As
Publication number | Publication date |
---|---|
DE102009021782A1 (en) | 2010-11-25 |
EP2253384A1 (en) | 2010-11-24 |
EP2253384B1 (en) | 2016-03-23 |
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