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EP3265240B1 - Coating device comprising an adjustable tear-off edge - Google Patents

Coating device comprising an adjustable tear-off edge Download PDF

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Publication number
EP3265240B1
EP3265240B1 EP16707714.8A EP16707714A EP3265240B1 EP 3265240 B1 EP3265240 B1 EP 3265240B1 EP 16707714 A EP16707714 A EP 16707714A EP 3265240 B1 EP3265240 B1 EP 3265240B1
Authority
EP
European Patent Office
Prior art keywords
coating
tool
edge
workpiece
tear
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.)
Active
Application number
EP16707714.8A
Other languages
German (de)
French (fr)
Other versions
EP3265240A1 (en
Inventor
Stefan Schiele
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Josef Schiele OHG
Original Assignee
Josef Schiele OHG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Josef Schiele OHG filed Critical Josef Schiele OHG
Priority to PL16707714T priority Critical patent/PL3265240T3/en
Publication of EP3265240A1 publication Critical patent/EP3265240A1/en
Application granted granted Critical
Publication of EP3265240B1 publication Critical patent/EP3265240B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
    • B05B12/20—Masking elements, i.e. elements defining uncoated areas on an object to be coated
    • B05B12/22—Masking elements, i.e. elements defining uncoated areas on an object to be coated movable relative to the spray area
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
    • B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air

Definitions

  • the invention relates to a coating device with a coating chamber, in which at least one coating agent is provided, which deposits a coating on the coating surface of a workpiece, which moves through the coating chamber along a transport direction, wherein in the coating chamber a vacuum is applied and the coating surface by at least one Tool is limited with a spoiler edge and the coating chamber is limited by an inlet and an outlet die. Furthermore, the present invention relates to a method for coating the coating surface of a workpiece with a coating agent, wherein the coating surface is delimited by at least one tool with a tear-off edge.
  • Such coating devices are known from the prior art, for example from the WO 03/070384 A1 however, does not teach a spoiler edge according to the invention, and is used in particular for coating elongate profiles, such as window profiles.
  • a seal or the like cohesively, for example by extrusion, may be provided on the profile, which consists for example of plastic, metal and / or wood.
  • the workpiece is transported in the coating apparatus through a coating chamber and thereby a coating surface of a coating agent, such as a spray nozzle, provided with a coating.
  • the coating chamber according to the invention has at least one tool.
  • the coating chamber is under a negative pressure in the coating device in order to suck off excess coating material from the coating surface and / or to prevent the coating from taking place beyond the desired coating surface.
  • the coating devices according to the prior art have the disadvantage that they can be readjusted or adapted to new profiles or during coating only with considerable effort.
  • the object is achieved with a coating device with a coating chamber, in which at least one coating agent is provided, which applies a coating to the coating surface of a workpiece, which passes through the Moving coating chamber along a transport direction, wherein in the coating chamber, a negative pressure is applied and the coating surface is limited by at least one tool with a trailing edge and the coating chamber is limited by an inlet and an outlet die, wherein the tool is mounted outside of the coating chamber.
  • the present invention relates to a coating apparatus having a coating chamber in which at least one coating agent is provided, which applies the coating to the coating surface of a workpiece which moves through the coating chamber along a transport direction, wherein a negative pressure is applied in the coating chamber.
  • the workpiece is usually an elongated profile, for example, a part of the frame of a window or a floor covering, which is made in particular of plastic, metal and / or wood.
  • a seal in particular cohesively, be provided, which is preferably at least partially co-coated.
  • Such coating devices are marketed, for example, under the trade name Vacumat® by the present applicant.
  • the coating surface is delimited by at least one tool that has a tear-off edge, and the coating chamber has an inlet and an outlet die.
  • the inlet die enters the workpiece to be coated in the coating chamber and is there provided with the coating material and then leaves the coating chamber through the outlet die.
  • the negative pressure present in the coating chamber on the one hand the coating is reduced to the desired coating surface and on the other hand excess-applied coating material is removed again from the workpiece. Due to the negative pressure, air is drawn in from the outside, in particular through the inlet and / or outlet die, with which the excess applied coating agent and so-called overspray are removed from the coating chamber. Preferably, more air is sucked in through the outlet die than through the inlet die.
  • the air flow in the coating chamber also creates an air flow between the workpiece and the tear-off edge of the tool, resulting in a clean boundary line, up to which the coating of the workpiece takes place.
  • the mixture of coating agent and air is preferably passed through a filter system in which the coating agent is separated from the air and optionally returned to the coating process.
  • the tool with the tear-off edge is mounted outside the coating chamber.
  • the adjustment can also take place during the coating, if the coating result does not correspond to the desired specifications, in particular if a coating takes place beyond the desired coating surface.
  • the extent of the tool parallel to the transport direction of the workpiece is at least as long as, preferably longer than the extension of the coating chamber parallel to the transport direction of the workpiece.
  • workpieces can be partially coated. It is also possible to completely or partially coat the seal on workpieces with a seal.
  • the workpiece and / or the seal can have undercuts, which are optionally coated.
  • the tool is connected to the tear-off edge outside the coating chamber with an adjustment.
  • this adjustment is a so-called XY adjustment, so that the tear-off edge can be adjusted in two spatial directions, in particular separately from one another.
  • the two spatial directions are preferably provided at a 90 ° angle to each other.
  • the adjustment of the tool can be done by motor and / or manually.
  • This air flow prevents, in particular, the coating agent from penetrating beyond the tool and thereby enlarging the coating surface in an undesired manner.
  • the air flow between the tool and the workpiece results in a clear line up to which the coating takes place.
  • a mask is provided in the coating chamber, which has a, preferably adjustable, element, wherein between this element and the tool with the tear-off edge, a gap is provided whose size, preferably by an adjustment of the tool and / or by adjustment of the adjustable element , is adjustable, particularly preferably is applied to the gap negative pressure, so an air flow is established in the gap. Adjustment of the gap preferably prevents penetration of the coating beyond the desired coating surface.
  • the coating device has two tools, each with a tear-off edge, which are independently adjustable in at least one, preferably two spatial directions, which are preferably provided at a 90 ° angle to each other.
  • adjustment of each tool with the tear-off edge occurs during the coating process.
  • Another object of the present invention is a method for coating the coating surface of a workpiece with a coating agent, wherein the coating surface is delimited by at least one tool with a tear-off edge, and wherein the tool in at least one, preferably two spatial directions during coating and / or is adjustable outside the coating chamber.
  • an air flow forms between the workpiece and the tear-off edge.
  • a sensor means for example a camera, is particularly preferably provided which detects, for example, the coating result achieved and, in the case of an insufficient coating, makes an adjustment on the tool with the tear-off edge.
  • FIGS. 1 and 2 show the coating device 1 according to the invention, which has a coating chamber 17 in which a workpiece 3 is coated along its main extension direction through the chamber on a coating surface.
  • the transport direction of the workpiece is provided with the reference symbol x.
  • the coating device has one or more coating agents 2, for example spray nozzles, which apply a coating material, in particular a paint, particularly preferably a water-soluble paint, to the surface 15 to be coated. Since usually only a limited part of the workpiece is to be coated, the device according to the invention has two tools 6, 7, each with a tear-off edge 18, which delimit the coating surface.
  • the workpiece 3 passes through an inlet die 11, which preferably follows substantially the outer cross-sectional contour of the workpiece, is coated in the coating chamber and exits the coating chamber through an outlet die, which preferably has the same or larger opening for the exiting workpiece as / the inlet die.
  • the coating chamber 17 is under a certain negative pressure, so that air is sucked in from the outside by the inlet and outlet dies, with which excess applied coating agent is removed from the workpiece and any existing overspray is led out of the coating chamber.
  • the mixture of air and coating agent is then preferably passed through a filter system in which the coating agent is removed from the air and the separated coating agent is optionally returned to the coating process.
  • the tool 6, 7 and thus the tear-off edge 18 now extend beyond the longitudinal extent of the coating chamber, ie it projects out of the inlet or outlet die on at least one side, preferably on both sides, and is there at an adjustment 8, preferably with connecting means 10 9, with which it is possible to adjust the tear-off edge 18 at least in one, preferably in two spatial directions linearly and / or rotationally. Due to the fact that the suspension of the tool 6, 7 with the tear-off edge 18 takes place outside the coating chamber, its adjustment is easily possible prior to start-up and / or during coating, without interfering with the coating chamber 17 must become.
  • the coating device according to the invention has a guide 5, here two guide rollers, which lead the workpiece before entering the coating chamber and / or after leaving the coating chamber.
  • the guides are provided to stabilize the workpiece in two spatial directions. But it is also possible to provide two guide rollers which guide the workpiece in the horizontal direction and a hold-down 12.3, which leads the workpiece in the vertical.
  • the workpiece 3 is a window profile, which is made of a plastic, metal and / or wood and to which in the present case, a seal 3.2 cohesively, in particular by extrusion.
  • the tool 6 with the tear-off edge 18 cooperates with the seal 3.2 in the present case and prevents it from being completely coated with the coating material.
  • the tool 7 with the tear-off edge 18 interacts with the carrier part 3.1, here a plastic part and also prevents it from being completely coated.
  • a Abdeckmaske 12 is provided, the closer reference to the FIG. 3 will be explained.
  • a first or a second gap 13, 14 is provided between the mask 12 and the respective tool 6, 7.
  • This gap is connected to a vacuum channel 16, so that air sucked through this gap flows.
  • the trailing edge can be adjusted or adjusted.
  • the adjustments 8, 9 indicated which are located in front of the inlet and outlet die 11 and thus are not arranged in the coating chamber.
  • FIG. 3 shows the Abdeckmaske 12, which is completely provided in the coating chamber and consists of a base member 12.1, to which at least one here two adjustable elements 12.2 are provided.
  • each adjustable element 12.2 is provided at least in sections parallel to the associated tear-off edge 6, 7.
  • the size of the gap 13, 14 between the mask and the respective demolition die 6, 7 and thus the size of the air flow can be adjusted in this gap.
  • the size of the gap 13, 14 may alternatively or additionally be changed by an adjustment of the tool 6, 7.
  • the mask also has a hold-down 12.3, which prevents the workpiece to be coated in an unintentional manner in vertical Direction, especially against gravity, moves.
  • the horizontal guide can be designed as two rollers with a vertical axis of rotation.
  • the mask 12 is at least substantially independent of the profile to be coated, ie can be used universally. It is introduced into the coating chamber, preferably inserted, in particular inlet side.
  • FIG. 4 shows an example of a tool 6 with a tear-off edge 18.
  • the tool is provided in the present case U-shaped, wherein the base of the US, in particular its tip, the tear-off edge 18 and cooperates with the workpiece, here the seal 3.2, and thereby limits the coating area.
  • Each connecting means 10, which connects the tool 6, 7 with an adjustment 8, 9, is located in each case outside the coating chamber 17.
  • FIG. 5 shows an example of the inlet or outlet die 11, which limits the coating chamber 17 at the front or back.
  • the die 11 has a recess 11.1 through which the workpiece enters the coating chamber 17, or through which the workpiece 3 leaves the coating chamber.
  • the contour of the recess 11.1 preferably follows the cross-sectional area perpendicular to the transport direction x of the workpiece to be coated.
  • FIG. 6 shows further details of the coating device according to the invention.
  • the workpiece 3 is guided from right to left through the coating chamber 17.
  • the connecting means 10, on which the tear-off edge (not shown) is suspended is located in each case to the right and left of the coating chamber, that is not provided in the coating chamber 17.
  • the connecting means 10 are provided on an adjustment, here an XY adjustment 8, with which the tools 6, 7 is provided adjustable in two spatial directions.
  • FIG. 7 schematically shows the coating chamber 17, in which a coating agent (not shown) is provided, which generates a spray cone 4, with which the coating surface 15 of the workpiece 3 is coated.
  • the coating surface 15 is delimited by the tools 6, 7 with their tear-off edges 18, which in the present case are located on the right and left with respect to the transport direction of the workpiece 3 (here in the plane of the paper).
  • the tools 6, 7 and thus the demolition edges 18 can be adjusted according to the invention in their position, on the one hand to limit the coating surface 15 to the desired level, but also possibly a certain gap between the To produce spoiler edge and the workpiece.
  • the adjustable element 12.2 of the mask 12 and the vacuum means 16 is also shown.
  • each tool 6, 7 should have a correspondingly large travel range. This can be achieved by the air gap between the tool 6, 7 and the parallel element 12.2.

Landscapes

  • Coating Apparatus (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Description

Die Erfindung betrifft eine Beschichtungsvorrichtung mit einer Beschichtungskammer, in der mindestens ein Beschichtungsmittel vorgesehen ist, das eine Beschichtung auf die Beschichtungsfläche eines Werkstücks aufträgt, das sich durch die Beschichtungskammer entlang einer Transportrichtung bewegt, wobei in der Beschichtungskammer ein Unterdruck anliegt und die Beschichtungsfläche durch mindestens ein Werkzeug mit einer Abrisskante begrenzt ist und die Beschichtungskammer durch eine Einlauf- und eine Auslaufmatrize begrenzt ist. Des Weiteren betrifft die vorliegende Erfindung ein Verfahren zum Beschichten der Beschichtungsfläche eines Werkstücks mit einem Beschichtungsmittel, wobei die Beschichtungsfläche durch mindestens ein Werkzeug mit einer Abrisskante begrenzt wird.The invention relates to a coating device with a coating chamber, in which at least one coating agent is provided, which deposits a coating on the coating surface of a workpiece, which moves through the coating chamber along a transport direction, wherein in the coating chamber a vacuum is applied and the coating surface by at least one Tool is limited with a spoiler edge and the coating chamber is limited by an inlet and an outlet die. Furthermore, the present invention relates to a method for coating the coating surface of a workpiece with a coating agent, wherein the coating surface is delimited by at least one tool with a tear-off edge.

Derartige Beschichtungsvorrichtungen sind aus dem Stand der Technik bekannt, beispielsweise aus der WO 03/070384 A1 , die jedoch keine erfindungsgemäße Abrisskante lehrt, und werden insbesondere zur Beschichtung von langgestreckten Profilen, wie beispielsweise Fensterprofilen, eingesetzt. Dabei kann an dem Profil, das beispielsweise aus Kunststoff, Metall und/oder Holz besteht, eine Dichtung oder dergleichen stoffschlüssig, beispielsweise durch Anextrudieren, vorgesehen sein. Das Werkstück wird bei der Beschichtungsvorrichtung durch eine Beschichtungskammer hindurch transportiert und dabei eine Beschichtungsfläche von einem Beschichtungsmittel, beispielsweise einer Sprühdüse, mit einer Beschichtung versehen. Um die Beschichtung auf die Beschichtungsfläche zu begrenzen, weist die erfindungsgemäße Beschichtungskammer mindestens ein Werkzeug auf. Die Beschichtungskammer steht bei der Beschichtungsvorrichtung unter einem Unterdruck, um überschüssiges Beschichtungsmaterial von der Beschichtungsfläche abzusaugen und/oder um zu verhindern, dass die Beschichtung jenseits der gewünschten Beschichtungsfläche erfolgt.Such coating devices are known from the prior art, for example from the WO 03/070384 A1 however, does not teach a spoiler edge according to the invention, and is used in particular for coating elongate profiles, such as window profiles. In this case, on the profile, which consists for example of plastic, metal and / or wood, a seal or the like cohesively, for example by extrusion, may be provided. The workpiece is transported in the coating apparatus through a coating chamber and thereby a coating surface of a coating agent, such as a spray nozzle, provided with a coating. In order to limit the coating to the coating surface, the coating chamber according to the invention has at least one tool. The coating chamber is under a negative pressure in the coating device in order to suck off excess coating material from the coating surface and / or to prevent the coating from taking place beyond the desired coating surface.

Die Beschichtungsvorrichtungen gemäß dem Stand der Technik haben jedoch den Nachteil, dass sie auf neue Profile oder während des Beschichtens nur mit einem erheblichen Aufwand neu eingestellt oder angepasst werden können.However, the coating devices according to the prior art have the disadvantage that they can be readjusted or adapted to new profiles or during coating only with considerable effort.

Es war deshalb die Aufgabe der vorliegenden Erfindung eine Beschichtungsvorrichtung zur Verfügung zu stellen, die die Nachteile des Standes der Technik nicht aufweist.It was therefore the object of the present invention to provide a coating device which does not have the disadvantages of the prior art.

Gelöst wird die Aufgabe mit einer Beschichtungsvorrichtung mit einer Beschichtungskammer, in der mindestens ein Beschichtungsmittel vorgesehen ist, das eine Beschichtung auf die Beschichtungsfläche eines Werkstücks aufträgt, das sich durch die Beschichtungskammer entlang einer Transportrichtung bewegt, wobei in der Beschichtungskammer ein Unterdruck anliegt und die Beschichtungsfläche durch mindestens ein Werkzeug mit einer Abrisskante begrenzt ist und die Beschichtungskammer durch eine Einlauf- und eine Auslaufmatrize begrenzt ist, wobei sich das Werkzeug außerhalb der Beschichtungskammer gelagert ist.The object is achieved with a coating device with a coating chamber, in which at least one coating agent is provided, which applies a coating to the coating surface of a workpiece, which passes through the Moving coating chamber along a transport direction, wherein in the coating chamber, a negative pressure is applied and the coating surface is limited by at least one tool with a trailing edge and the coating chamber is limited by an inlet and an outlet die, wherein the tool is mounted outside of the coating chamber.

Die vorliegende Erfindung betrifft eine Beschichtungsvorrichtung mit einer Beschichtungskammer, in der mindestens ein Beschichtungsmittel vorgesehen ist, das die Beschichtung auf die Beschichtungsfläche eines Werkstücks aufträgt, das sich durch die Beschichtungskammer entlang einer Transportrichtung bewegt, wobei in der Beschichtungskammer eine Unterdruck anliegt. Das Werkstück ist in der Regel ein langgestrecktes Profil, beispielsweise ein Teil des Rahmens eines Fensters oder ein Bodenbelag, das insbesondere aus Kunststoff, Metall und/oder Holz gefertigt ist. An dem Profil kann eine Dichtung, insbesondere stoffschlüssig, vorgesehen sein, die vorzugsweise zumindest teilweise mitbeschichtet wird. Derartige Beschichtungsvorrichtungen werden beispielsweise unter dem Handelsnamen Vacumat® von der hiesigen Anmelderin vertrieben. Die Beschichtungsfläche wird durch mindestens ein Werkzeug begrenzt, das eine Abrisskante aufweist und die Beschichtungskammer weist eine Ein- und eine Auslaufmatrize auf. Durch die Einlaufmatrize tritt das zu beschichtende Werkstück in die Beschichtungskammer ein und wird dort mit dem Beschichtungsmaterial versehen und verlässt sodann die Beschichtungskammer durch die Auslaufmatrize. Durch den in der Beschichtungskammer vorhandenen Unterdruck wird zum einen die Beschichtung auf die gewünschte Beschichtungsfläche reduziert und zum anderen überschüssig aufgetragenes Beschichtungsmaterial wieder von dem Werkstück entfernt. Durch den Unterdruck wird von außen, insbesondere durch die Ein- und/oder die Auslaufmatrize, Luft angesaugt, mit der das überschüssig aufgetragene Beschichtungsmittel sowie sogenannter Overspray aus der Beschichtungskammer entfernt wird. Vorzugsweise wird durch die Auslaufmatrize mehr Luft angesaugt als durch die Einlaufmatrize. Durch den Luftstrom in der Beschichtungskammer entsteht auch ein Luftstrom zwischen dem Werkstück und der Abrisskante des Werkzeugs, wodurch sich eine saubere Grenzlinie ergibt, bis zu der die Beschichtung des Werkstücks erfolgt. Das Gemisch aus Beschichtungsmittel und Luft wird vorzugsweise über ein Filtersystem geleitet, in dem das Beschichtungsmittel von der Luft abgetrennt und gegebenenfalls in den Beschichtungsvorgang zurückgeführt wird.The present invention relates to a coating apparatus having a coating chamber in which at least one coating agent is provided, which applies the coating to the coating surface of a workpiece which moves through the coating chamber along a transport direction, wherein a negative pressure is applied in the coating chamber. The workpiece is usually an elongated profile, for example, a part of the frame of a window or a floor covering, which is made in particular of plastic, metal and / or wood. On the profile, a seal, in particular cohesively, be provided, which is preferably at least partially co-coated. Such coating devices are marketed, for example, under the trade name Vacumat® by the present applicant. The coating surface is delimited by at least one tool that has a tear-off edge, and the coating chamber has an inlet and an outlet die. Through the inlet die enters the workpiece to be coated in the coating chamber and is there provided with the coating material and then leaves the coating chamber through the outlet die. By means of the negative pressure present in the coating chamber, on the one hand the coating is reduced to the desired coating surface and on the other hand excess-applied coating material is removed again from the workpiece. Due to the negative pressure, air is drawn in from the outside, in particular through the inlet and / or outlet die, with which the excess applied coating agent and so-called overspray are removed from the coating chamber. Preferably, more air is sucked in through the outlet die than through the inlet die. The air flow in the coating chamber also creates an air flow between the workpiece and the tear-off edge of the tool, resulting in a clean boundary line, up to which the coating of the workpiece takes place. The mixture of coating agent and air is preferably passed through a filter system in which the coating agent is separated from the air and optionally returned to the coating process.

Erfindungsgemäß ist nun vorgesehen, dass das Werkzeug mit der Abrisskante, außerhalb der Beschichtungskammer gelagert ist. Dadurch ist es möglich, das Werkzeug, durch eine Verstellung von dessen Lagerung an ein neues Profil anzupassen oder das Werkzeug und damit die Abrisskante nachzujustieren, ohne in die Beschichtungskammer eingreifen zu müssen. Dies macht diesen Einstell- bzw. Verstellvorgang erheblich schneller und einfacher. Insbesondere kann die Einstellung auch während des Beschichtens erfolgen, wenn das Beschichtungsergebnis nicht den gewünschten Vorgaben entspricht, insbesondere wenn eine Beschichtung über die gewünschte Beschichtungsfläche hinaus erfolgt. Die Erstreckung des Werkzeugs parallel zur Transportrichtung des Werkstücks ist dabei mindestens so lang wie, vorzugsweise länger als die Erstreckung der Beschichtungskammer parallel zur Transportrichtung des Werkstücks.According to the invention, it is now provided that the tool with the tear-off edge is mounted outside the coating chamber. This makes it possible to adapt the tool, by an adjustment of its storage to a new profile or the tool and to readjust the trailing edge without having to intervene in the coating chamber. This makes this adjustment or adjustment significantly faster and easier. In particular, the adjustment can also take place during the coating, if the coating result does not correspond to the desired specifications, in particular if a coating takes place beyond the desired coating surface. The extent of the tool parallel to the transport direction of the workpiece is at least as long as, preferably longer than the extension of the coating chamber parallel to the transport direction of the workpiece.

Mit der erfindungsgemäßen Vorrichtung können Werkstücke teilweise beschichtet werden. Es ist auch möglich bei Werkstücken mit einer Dichtung die Dichtung ganz oder teilweise zu beschichten. Das Werkstück und/oder die Dichtung können dabei Hinterschnitte aufweisen, die wahlweise beschichtet werden.With the device according to the invention workpieces can be partially coated. It is also possible to completely or partially coat the seal on workpieces with a seal. The workpiece and / or the seal can have undercuts, which are optionally coated.

Gemäß einem weiteren bevorzugten oder erfindungsgemäßen Gegenstand der vorliegenden Erfindung ist das Werkzeug mit der Abrisskante außerhalb der Beschichtungskammer mit einer Verstellung verbunden. Vorzugsweise handelt es sich bei dieser Verstellung um eine sogenannte XY-Verstellung, sodass die Abrisskante in zwei Raumrichtungen, insbesondere getrennt voneinander, eingestellt werden kann. Die beiden Raumrichtungen sind dabei vorzugsweise in einem 90° Winkel zueinander vorgesehen. Die Verstellung des Werkzeugs kann dabei motorisch und/oder manuell erfolgen.According to another preferred or inventive subject matter of the present invention, the tool is connected to the tear-off edge outside the coating chamber with an adjustment. Preferably, this adjustment is a so-called XY adjustment, so that the tear-off edge can be adjusted in two spatial directions, in particular separately from one another. The two spatial directions are preferably provided at a 90 ° angle to each other. The adjustment of the tool can be done by motor and / or manually.

Vorzugsweise bildet sich zwischen dem Werkzeug und dem Werkstück zumindest teilweise und/oder zumindest zeitweise, vorzugsweise während des gesamten Beschichtungsvorgangs ein Luftstrom aus, der durch den in der Beschichtungskammer vorhanden Unterdruck induziert ist, der vorzugsweise zumindest teilweise entlang des Werkzeugs strömt und besonders bevorzugt an der Abrisskante abreißt. Durch diesen Luftstrom wird insbesondere verhindert, dass das Beschichtungsmittel jenseits des Werkzeugs vordringt und sich dadurch die Beschichtungsfläche in ungewollter Weise vergrößert. Durch den Luftstrom zwischen Werkzeug und Werkstück ergibt sich eine klare Linie, bis zu der die Beschichtung erfolgt.Preferably, between the tool and the workpiece at least partially and / or at least temporarily, preferably during the entire coating process, an air flow which is induced by the negative pressure present in the coating chamber, which preferably flows at least partially along the tool, and particularly preferably at the Demolition edge breaks off. This air flow prevents, in particular, the coating agent from penetrating beyond the tool and thereby enlarging the coating surface in an undesired manner. The air flow between the tool and the workpiece results in a clear line up to which the coating takes place.

Vorzugsweise ist in der Beschichtungskammer eine Abdeckmaske vorgesehen, die ein, vorzugsweise einstellbares, Element aufweist, wobei zwischen diesem Element und dem Werkzeug mit der Abrisskante ein Spalt vorgesehen ist, dessen Größe, vorzugsweise durch eine Verstellung des Werkzeugs und/oder durch Verstellung des einstellbaren Elementes, verstellbar ausgebildet ist, Besonders bevorzugt liegt an dem Spalt Unterdruck an, sodass sich in dem Spalt ein Luftstrom einstellt. Durch eine Einstellung des Spaltes wird vorzugsweise ein Vordringen der Beschichtung jenseits der gewünschten Beschichtungsfläche verhindert.Preferably, a mask is provided in the coating chamber, which has a, preferably adjustable, element, wherein between this element and the tool with the tear-off edge, a gap is provided whose size, preferably by an adjustment of the tool and / or by adjustment of the adjustable element , is adjustable, particularly preferably is applied to the gap negative pressure, so an air flow is established in the gap. Adjustment of the gap preferably prevents penetration of the coating beyond the desired coating surface.

Gemäß einer bevorzugten Ausführungsform der vorliegenden Erfindung weist die Beschichtungsvorrichtung zwei Werkzeuge mit jeweils einer Abrisskante auf, die unabhängig voneinander in mindestens einer, vorzugsweise zwei Raumrichtungen, die vorzugsweise in einem 90° Winkel zueinander vorgesehen sind, einstellbar sind.According to a preferred embodiment of the present invention, the coating device has two tools, each with a tear-off edge, which are independently adjustable in at least one, preferably two spatial directions, which are preferably provided at a 90 ° angle to each other.

Vorzugsweise erfolgt die Einstellung jedes Werkzeugs mit der Abrisskante während des Beschichtungsvorgangs.Preferably, adjustment of each tool with the tear-off edge occurs during the coating process.

Ein weiterer Gegenstand der vorliegenden Erfindung ist ein Verfahren zum Beschichten der Beschichtungsfläche eines Werkstücks mit einem Beschichtungsmittel, wobei die Beschichtungsfläche durch mindestens ein Werkzeug mit einer Abrisskante begrenzt wird, und bei dem das Werkzeug in mindestens einer, vorzugsweise zwei Raumrichtungen während des Beschichtens und/oder außerhalb der Beschichtungskammer einstellbar ist.Another object of the present invention is a method for coating the coating surface of a workpiece with a coating agent, wherein the coating surface is delimited by at least one tool with a tear-off edge, and wherein the tool in at least one, preferably two spatial directions during coating and / or is adjustable outside the coating chamber.

Die zu diesem Gegenstand der vorliegenden Erfindung gemachten Ausführungen gelten für die erfindungsgemäße Beschichtungsvorrichtung gleichermaßen und umgekehrt.The statements made on this subject of the present invention apply equally to the coating apparatus according to the invention and vice versa.

Vorzugsweise bildet sich ein Luftstrom zwischen dem Werkstück und der Abrisskante aus.Preferably, an air flow forms between the workpiece and the tear-off edge.

Vorzugsweise erfolgt die Einstellung der Position jedes Werkzeugs mit der Abrisskante automatisch. Dafür ist besonders bevorzugt ein Sensormittel, beispielsweise eine Kamera, vorgesehen, das beispielsweise das erzielte Beschichtungsergebnis erfasst und im Fall einer unzureichenden Beschichtung eine Einstellung an dem Werkzeug mit der Abrisskante vornimmt.Preferably, the adjustment of the position of each tool with the trailing edge is done automatically. For this purpose, a sensor means, for example a camera, is particularly preferably provided which detects, for example, the coating result achieved and, in the case of an insufficient coating, makes an adjustment on the tool with the tear-off edge.

Die Erfindung wird nun anhand der Figuren erläutert. Diese Erläuterungen sind lediglich beispielhaft und schränken den allgemeinen Erfindungsgedanken nicht ein. Die Erläuterungen gelten für alle Gegenstände der vorliegenden Erfindungen gleichermaßen.

Figuren 1 und 2
zeigen die erfindungsgemäße Beschichtungsvorrichtung.
Figur 3
zeigt die Abdeckmaske.
Figur 4
zeigt ein Werkzeug mit einer Abrisskante.
Figur 5
zeigt die Ein- bzw. Auslaufmatrize.
Figur 6
zeigt weitere Details der Beschichtungsvorrichtung gemäß den Figuren 1 und 2.
Figur 7
zeigt schematisch die Beschichtungskammer.
The invention will now be explained with reference to the figures. These explanations are merely exemplary and do not limit the general inventive concept. The explanations apply equally to all articles of the present invention.
Figures 1 and 2
show the coating device according to the invention.
FIG. 3
shows the mask.
FIG. 4
shows a tool with a trailing edge.
FIG. 5
shows the inlet and outlet die.
FIG. 6
shows further details of the coating apparatus according to the FIGS. 1 and 2 ,
FIG. 7
schematically shows the coating chamber.

Die Figuren 1 und 2 zeigen die erfindungsgemäße Beschichtungsvorrichtung 1, die eine Beschichtungskammer 17 aufweist, in der ein Werkstück 3 entlang seiner Haupterstreckungsrichtung durch die Kammer auf einer Beschichtungsfläche beschichtet wird. Die Transportrichtung des Werkstücks ist mit dem Bezugszeichen x versehen. Dafür weist die Beschichtungsvorrichtung ein oder mehrere Beschichtungsmittel 2, beispielsweise Sprühdüsen, auf, die ein Beschichtungsmaterial, insbesondere eine Farbe, besonders bevorzugt eine wasserlösliche Farbe, auf die zu beschichtende Fläche 15 auftragen. Da in der Regel nur ein beschränkter Teil des Werkstücks beschichtet werden soll, weist die erfindungsgemäße Vorrichtung zwei Werkzeuge 6, 7 mit jeweils einer Abrisskante 18 auf, die die Beschichtungsfläche begrenzen. Das Werkstück 3 tritt durch eine Einlaufmatrize 11, die vorzugsweise im Wesentlichen der äußeren Querschnittskontur des Werkstücks folgt, ein, wird in der Beschichtungskammer beschichtet und verlässt die Beschichtungskammer durch eine Auslaufmatrize, die vorzugsweise dieselbe oder eine größere Öffnung für das austretende Werkstück aufweist wie/als die Einlaufmatrize. Die Beschichtungskammer 17 steht unter einem gewissen Unterdruck, sodass durch die Ein- und die Auslaufmatrize von außen Luft angesaugt wird, mit der überschüssig aufgetragenes Beschichtungsmittel von dem Werkstück wieder entfernt wird und ggf. vorhandener Overspray aus der Beschichtungskammer herausgeführt wird. Die Mischung aus Luft und Beschichtungsmittel wird sodann vorzugsweise über ein Filtersystem gefahren, in dem das Beschichtungsmittel von der Luft entfernt und das separierte Beschichtungsmittel ggf. wieder in den Beschichtungsprozess zurückgeführt wird. Erfindungsgemäß erstreckt sich das Werkzeug 6, 7 und damit die Abrisskante 18 nun über die Längserstreckung der Beschichtungskammer hinaus, d.h. sie steht zumindest einseitig, vorzugsweise beidseitig aus der Einlauf- bzw. Auslaufmatrize heraus und ist dort, vorzugsweise mit Verbindungsmitteln 10, an einer Verstellung 8, 9 gelagert, mit der es möglich ist, die Abrisskante 18 mindestens in eine, vorzugsweise in zwei Raumrichtungen linear und/oder rotatorisch zu verstellen. Dadurch, dass die Aufhängung des Werkzeugs 6, 7 mit der Abrisskante 18 außerhalb der Beschichtungskammer erfolgt, ist deren Einstellung vor Inbetriebnahme und/oder während der Beschichtung leicht möglich, ohne dass in die Beschichtungskammer 17 eingegriffen werden muss. Somit ist es in einfacher Weise möglich, die Abrisskante 18 auf ein neu zu beschichtendes Profil einzustellen und/oder auf auftretende Toleranzen des zu beschichtenden Profiles anzupassen und/oder die Abrisskante bei sich ändernden Beschichtungsparametern und/oder sich veränderndem Beschichtungsergebnis nachzustellen. Die Verstellung der Abrisskante kann dabei sowohl manuell als auch motorisch erfolgen. Wie insbesondere Figur 2 zu entnehmen ist, weist die erfindungsgemäße Beschichtungsvorrichtung eine Führung 5, hier zwei Führungsrollen, auf, die das Werkstück vor dem Eintritt in die Beschichtungskammer und/oder nach dem Verlassen der Beschichtungskammer führen. Vorzugsweise sind die Führungen so vorgesehen, dass sie das Werkstück in zwei Raumrichtungen stabilisieren. Es ist aber auch möglich, zwei Führungsrollen, die das Werkstück in horizontaler Richtung führen und einen Niederhalter 12.3, der das Werkstück in der Vertikalen führt, vorzusehen. In dem vorliegenden Fall ist das Werkstück 3 ein Fensterprofil, das aus einem Kunststoff, Metall und/oder Holz gefertigt ist und an das im vorliegenden Fall eine Dichtung 3.2 stoffschlüssig, insbesondere durch Anextrudieren, angeordnet ist. Das Werkzeug 6 mit der Abrisskante 18 wirkt in dem vorliegenden Fall mit der Dichtung 3.2 zusammen und verhindert, dass diese vollständig mit dem Beschichtungsmaterial beschichtet wird. Das Werkzeug 7 mit der Abrisskante 18 wirkt mit dem Trägerteil 3.1, hier einem Kunststoffteil zusammen und verhindert ebenfalls, dass dieses vollständig beschichtet wird. In der Beschichtungskammer 17 ist eine Abdeckmaske 12 vorgesehen, der näher anhand der Figur 3 erläutert werden wird. Wie ebenfalls Figur 2 entnommen werden kann, ist zwischen dem Abdeckmaske 12 und dem jeweiligen Werkzeug 6, 7 ein erster bzw. ein zweiter Spalt 13, 14 vorgesehen. Dieser Spalt ist mit einem Unterdruckkanal 16 verbunden, sodass durch diesen Spalt angesaugte Luft strömt. Durch den Spalt 13, 14 kann die Abrisskante verstellt bzw. eingestellt werden. In Figur 2 sind ebenfalls die Verstellungen 8, 9 angedeutet, die sich vor der Ein- bzw. Auslaufmatrize 11 befinden und somit nicht in der Beschichtungskammer angeordnet sind.The FIGS. 1 and 2 show the coating device 1 according to the invention, which has a coating chamber 17 in which a workpiece 3 is coated along its main extension direction through the chamber on a coating surface. The transport direction of the workpiece is provided with the reference symbol x. For this purpose, the coating device has one or more coating agents 2, for example spray nozzles, which apply a coating material, in particular a paint, particularly preferably a water-soluble paint, to the surface 15 to be coated. Since usually only a limited part of the workpiece is to be coated, the device according to the invention has two tools 6, 7, each with a tear-off edge 18, which delimit the coating surface. The workpiece 3 passes through an inlet die 11, which preferably follows substantially the outer cross-sectional contour of the workpiece, is coated in the coating chamber and exits the coating chamber through an outlet die, which preferably has the same or larger opening for the exiting workpiece as / the inlet die. The coating chamber 17 is under a certain negative pressure, so that air is sucked in from the outside by the inlet and outlet dies, with which excess applied coating agent is removed from the workpiece and any existing overspray is led out of the coating chamber. The mixture of air and coating agent is then preferably passed through a filter system in which the coating agent is removed from the air and the separated coating agent is optionally returned to the coating process. According to the invention, the tool 6, 7 and thus the tear-off edge 18 now extend beyond the longitudinal extent of the coating chamber, ie it projects out of the inlet or outlet die on at least one side, preferably on both sides, and is there at an adjustment 8, preferably with connecting means 10 9, with which it is possible to adjust the tear-off edge 18 at least in one, preferably in two spatial directions linearly and / or rotationally. Due to the fact that the suspension of the tool 6, 7 with the tear-off edge 18 takes place outside the coating chamber, its adjustment is easily possible prior to start-up and / or during coating, without interfering with the coating chamber 17 must become. Thus, it is possible in a simple manner to adjust the tear-off edge 18 to a new profile to be coated and / or to adapt to occurring tolerances of the profile to be coated and / or readjust the tear-off edge with changing coating parameters and / or changing coating result. The adjustment of the trailing edge can be done both manually and by motor. In particular FIG. 2 can be seen, the coating device according to the invention has a guide 5, here two guide rollers, which lead the workpiece before entering the coating chamber and / or after leaving the coating chamber. Preferably, the guides are provided to stabilize the workpiece in two spatial directions. But it is also possible to provide two guide rollers which guide the workpiece in the horizontal direction and a hold-down 12.3, which leads the workpiece in the vertical. In the present case, the workpiece 3 is a window profile, which is made of a plastic, metal and / or wood and to which in the present case, a seal 3.2 cohesively, in particular by extrusion. The tool 6 with the tear-off edge 18 cooperates with the seal 3.2 in the present case and prevents it from being completely coated with the coating material. The tool 7 with the tear-off edge 18 interacts with the carrier part 3.1, here a plastic part and also prevents it from being completely coated. In the coating chamber 17, a Abdeckmaske 12 is provided, the closer reference to the FIG. 3 will be explained. Like also FIG. 2 can be removed, a first or a second gap 13, 14 is provided between the mask 12 and the respective tool 6, 7. This gap is connected to a vacuum channel 16, so that air sucked through this gap flows. Through the gap 13, 14, the trailing edge can be adjusted or adjusted. In FIG. 2 are also the adjustments 8, 9 indicated, which are located in front of the inlet and outlet die 11 and thus are not arranged in the coating chamber.

Figur 3 zeigt die Abdeckmaske 12, der vollständig in der Beschichtungskammer vorgesehen ist und aus einem Grundelement 12.1 besteht, an dem mindestens ein hier zwei einstellbare Elemente 12.2 vorgesehen sind. Vorzugsweise ist jedes einstellbare Element 12.2 zumindest abschnittsweise parallel zu der dazugehörigen Abrisskante 6, 7 vorgesehen. Durch die einstellbaren Elemente 12.2 kann die Größe des Spaltes 13, 14 zwischen dem Abdeckmaske und der jeweiligen Abrissmatrize 6, 7 und damit die Größe des Luftstroms in diesem Spalt eingestellt werden. Die Größe des Spaltes 13, 14 kann alternativ oder zusätzlich auch durch eine Verstellung des Werkzeugs 6, 7 verändert werden. In dem vorliegenden Fall weist die Abdeckmaske auch noch einen Niederhalter 12.3 auf, der verhindert, dass sich das zu beschichtende Werkstück in ungewollter Weise in vertikaler Richtung, insbesondere gegen die Schwerkraft, bewegt. Dadurch kann die horizontale Führung als zwei Rollen mit einer vertikalen Drehachse ausgeführt werden.
Die Abdeckmaske 12 ist zumindest im Wesentlichen unabhängig von dem zu beschichtenden Profil, d.h. kann universell eingesetzt werden. Sie wird in die Beschichtungskammer eingeführt, vorzugsweise eingeschoben, insbesondere einlaufseitig. FIG. 3 shows the Abdeckmaske 12, which is completely provided in the coating chamber and consists of a base member 12.1, to which at least one here two adjustable elements 12.2 are provided. Preferably, each adjustable element 12.2 is provided at least in sections parallel to the associated tear-off edge 6, 7. By the adjustable elements 12.2, the size of the gap 13, 14 between the mask and the respective demolition die 6, 7 and thus the size of the air flow can be adjusted in this gap. The size of the gap 13, 14 may alternatively or additionally be changed by an adjustment of the tool 6, 7. In the present case, the mask also has a hold-down 12.3, which prevents the workpiece to be coated in an unintentional manner in vertical Direction, especially against gravity, moves. As a result, the horizontal guide can be designed as two rollers with a vertical axis of rotation.
The mask 12 is at least substantially independent of the profile to be coated, ie can be used universally. It is introduced into the coating chamber, preferably inserted, in particular inlet side.

Figur 4 zeigt beispielhaft ein Werkzeug 6 mit einer Abrisskante 18. Das Werkzeug ist in dem vorliegenden Fall U-förmig vorgesehen ist, wobei die Basis des Us, insbesondere dessen Spitze, die Abrisskante 18 bildet und mit dem Werkstück, hier der Dichtung 3.2, zusammenwirkt und dadurch die Beschichtungsfläche begrenzt. Jedes Verbindungsmittel 10, das das Werkzeug 6, 7 mit einer Verstellung 8, 9 verbindet, befindet sich jeweils außerhalb der Beschichtungskammer 17. FIG. 4 shows an example of a tool 6 with a tear-off edge 18. The tool is provided in the present case U-shaped, wherein the base of the US, in particular its tip, the tear-off edge 18 and cooperates with the workpiece, here the seal 3.2, and thereby limits the coating area. Each connecting means 10, which connects the tool 6, 7 with an adjustment 8, 9, is located in each case outside the coating chamber 17.

Figur 5 zeigt beispielhaft die Einlauf- bzw. Auslaufmatrize 11, die die Beschichtungskammer 17 an deren Vor- bzw. Rückseite begrenzt. Die Matrize 11 weist eine Ausnehmung 11.1 auf, durch die Werkstück in die Beschichtungskammer 17 eintritt, bzw. durch die das Werkstück 3 die Beschichtungskammer verlässt. Die Kontur der Ausnehmung 11.1 folgt dabei vorzugsweise der Querschnittsfläche senkrecht zur Transportrichtung x des zu beschichtenden Werkstücks. FIG. 5 shows an example of the inlet or outlet die 11, which limits the coating chamber 17 at the front or back. The die 11 has a recess 11.1 through which the workpiece enters the coating chamber 17, or through which the workpiece 3 leaves the coating chamber. The contour of the recess 11.1 preferably follows the cross-sectional area perpendicular to the transport direction x of the workpiece to be coated.

Figur 6 zeigt weitere Details der erfindungsgemäßen Beschichtungsvorrichtung. Das Werkstück 3 wird von rechts nach links durch die Beschichtungskammer 17 geführt. Es ist deutlich zu erkennen, dass die Verbindungsmittel 10, an denen die Abrisskante (nicht dargestellt) aufgehängt ist, sich jeweils rechts und links von der Beschichtungskammer befindet, d.h. nicht in der Beschichtungskammer 17 vorgesehen ist. Des Weiteren ist zu erkennen, dass die Verbindungsmittel 10 an einer Verstellung, hier einer XY-Verstellung 8 vorgesehen sind, mit der die Werkzeuge 6, 7 in zwei Raumrichtungen verstellbar vorgesehen ist. FIG. 6 shows further details of the coating device according to the invention. The workpiece 3 is guided from right to left through the coating chamber 17. It can be clearly seen that the connecting means 10, on which the tear-off edge (not shown) is suspended, is located in each case to the right and left of the coating chamber, that is not provided in the coating chamber 17. Furthermore, it can be seen that the connecting means 10 are provided on an adjustment, here an XY adjustment 8, with which the tools 6, 7 is provided adjustable in two spatial directions.

Figur 7 zeigt schematisch die Beschichtungskammer 17, in der ein Beschichtungsmittel (nicht dargestellt) vorgesehen ist, das einen Sprühkegel 4 erzeugt, mit dem die Beschichtungsfläche 15 des Werkstücks 3 beschichtet wird. Die Beschichtungsfläche 15 wird durch die Werkzeuge 6, 7 mit ihren Abrisskanten 18 begrenzt, die sich in dem vorliegenden Fall rechts und links bezogen auf die Transportrichtung des Werkstücks 3 (hier in die Papierebene hinein) befinden. Die Werkzeuge 6, 7 und damit die Abrisskanten 18 können erfindungsgemäß in ihrer Lage verstellt werden, um zum einen die Beschichtungsfläche 15 auf das gewünschte Maß zu begrenzen, aber auch ggf. einen gewissen Spalt zwischen der Abrisskante und dem Werkstück zu erzeugen. Schematisch ist ebenfalls das einstellbare Element 12.2 der Abdeckmaske 12 sowie das Vakuummittel 16 dargestellt. Zwischen dem einstellbaren Element 12.2 und der jeweiligen Abrisskante 6, 7 ist ein Spalt vorgesehen, durch den bedingt durch den von der Vakuumquelle 16 erzeugten Unterdruck ein Luftstrom erfolgt. Des Weiteren sorgt die Vakuumquelle 16 für einen Luftstrom zwischen der Abrisskante und dem Werkstück 3, wodurch verhindert wird, dass sich die Beschichtungsfläche in ungewollter Weise ausdehnt. Um die Abrisskante 18 auf die Toleranzen der zu beschichtenden Werkstücke einstellen zu können, sollte jedes Werkzeug 6, 7 einen entsprechend großen Verfahrbereich haben. Dies kann durch den Luftspalt zwischen dem Werkzeug 6, 7 und dem parallelen Element 12.2 erreicht werden. Durch das anliegende Vakuum wird die Außenluft durch den Spalt 12, 14 gesaugt und verhindert, dass Lackmaterial unterhalb der einstellbaren Werkzeuge 6, 7 auf die nicht zu beschichtende Bereiche des Werkstücks 3 gelangt. FIG. 7 schematically shows the coating chamber 17, in which a coating agent (not shown) is provided, which generates a spray cone 4, with which the coating surface 15 of the workpiece 3 is coated. The coating surface 15 is delimited by the tools 6, 7 with their tear-off edges 18, which in the present case are located on the right and left with respect to the transport direction of the workpiece 3 (here in the plane of the paper). The tools 6, 7 and thus the demolition edges 18 can be adjusted according to the invention in their position, on the one hand to limit the coating surface 15 to the desired level, but also possibly a certain gap between the To produce spoiler edge and the workpiece. Schematically, the adjustable element 12.2 of the mask 12 and the vacuum means 16 is also shown. Between the adjustable element 12.2 and the respective tear-off edge 6, 7, a gap is provided through which an air flow occurs due to the negative pressure generated by the vacuum source 16. Further, the vacuum source 16 provides airflow between the tear-off edge and the workpiece 3, thereby preventing the coating surface from undesirably expanding. In order to adjust the tear-off edge 18 to the tolerances of the workpieces to be coated, each tool 6, 7 should have a correspondingly large travel range. This can be achieved by the air gap between the tool 6, 7 and the parallel element 12.2. By the applied vacuum, the outside air is sucked through the gap 12, 14 and prevents paint material passes below the adjustable tools 6, 7 on the not to be coated areas of the workpiece 3.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

11
Beschichtungsvorrichtungcoater
22
Beschichtungsmittel, SprühdüsenCoating materials, spray nozzles
33
Werkstückworkpiece
3.13.1
Trägerteil, KunststoffteilCarrier part, plastic part
3.23.2
Dichtungpoetry
44
Sprühkegelspray cones
55
Führungguide
66
Erstes einstellbares WerkzeugFirst adjustable tool
77
Zweites einstellbares WerkzeugSecond adjustable tool
88th
Erste, Verstellung, X-Y-VerstellungFirst, adjustment, X-Y adjustment
99
Zweite Verstellung, X-Y-VerstellungSecond adjustment, X-Y adjustment
1010
Verbindungsmittel zwischen Verstellung 8, 9 und Abrisskante 6, 7Connecting means between adjustment 8, 9 and trailing edge 6, 7
1111
Ein- AuslaufmatrizeOne outlet die
11.111.1
Ausnehmung für das WerkstückRecess for the workpiece
1212
Abdeckmaskemask
12.112.1
Grundelementbasic element
12.212.2
Einstellbares ElementAdjustable element
12.312.3
Niederhalterdown device
1313
Erster SpaltFirst gap
1414
Zweiter SpaltSecond gap
1515
Beschichtungskante, BeschichtungsflächeCoating edge, coating surface
1616
Vakuumkanalvacuum channel
1717
Beschichtungskammercoating chamber
1818
Abrisskantetear-off edge
XX
Transportrichtungtransport direction

Claims (10)

  1. Coating device (1) with a coating chamber (17), in which at least one coating agent (2) is envisaged, which applies a coating to the coating surface (15) of a workpiece moving through the coating chamber along a transport direction (x), wherein an underpressure prevails in the coating chamber (17), and the coating chamber is delimited by an inlet and an outlet matrix (11), characterised in that the coating surface is delimited by at least one tool (6, 7) with a tear-off edge (18), and in that the tool(s) (6, 7) is/are stored outside of the coating chamber, wherein the underpressure between the tear-off edge (18) of the tool (6, 7) and the workpiece (3) forms an air stream at least some of the time for forming a limit line, up to which the coating of the workpiece is realised, wherein the air stream is envisaged in such a way that it tears off at the tear-off edge.
  2. Coating device (1) according to claim 1, characterised in that each of the tools (6, 7) is connected with an adjuster (8, 9) outside of the coating chamber.
  3. Coating device (1) according to claim 2, characterised in that the adjuster (8, 9) is an XY adjuster, so that the tear-off edge (18) can be set in two spatial directions, in particular separately from each other.
  4. Coating device (1) according to one of the preceding claims, characterised in that it has a cover mask (12) in the coating chamber (17), on which at least one element (12.2) is envisaged and in that a gap (13, 14) is formed between the element (12.2) and each tool (6, 7).
  5. Coating device (1) according to claim 4, characterised in that underpressure prevails in the gap (13, 14).
  6. Coating device (1) according to one of the preceding claims, characterised in that only one tool (6, 7) is provided, which can be adjusted independently from each other in at least one preferably two spatial directions.
  7. Coating device (1) according to one of the claims 1-5, characterised in that it has two tools (6, 7), which can be adjusted independently from each other in at least one, preferably two spatial directions.
  8. Coating device (1) according to one of the preceding claims, characterised in that the setting of each of the tools (6, 7) is possible during the coating process.
  9. Method for coating the coating surface (15) of a workpiece with a coating agent, characterised in that the coating surface (15) is delimited by at least one tool (6, 7) with a tear-off edge (18), and that the tool (6, 7) can be adjusted in at least one, preferably two spatial directions during coating and/or outside of the coating chamber, wherein an air stream is generated between the workpiece and the tool (6, 7), which is induced by underpressure prevailing in the coating chamber, wherein the air stream tears off at the tear-off edge.
  10. Method according to claim 9, characterised in that the tool is adjusted automatically.
EP16707714.8A 2015-03-03 2016-03-01 Coating device comprising an adjustable tear-off edge Active EP3265240B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16707714T PL3265240T3 (en) 2015-03-03 2016-03-01 Coating device comprising an adjustable tear-off edge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015203809.2A DE102015203809A1 (en) 2015-03-03 2015-03-03 Coating device with an adjustable spoiler edge
PCT/EP2016/054314 WO2016139200A1 (en) 2015-03-03 2016-03-01 Coating device comprising an adjustable tear-off edge

Publications (2)

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EP3265240A1 EP3265240A1 (en) 2018-01-10
EP3265240B1 true EP3265240B1 (en) 2019-07-17

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EP16707714.8A Active EP3265240B1 (en) 2015-03-03 2016-03-01 Coating device comprising an adjustable tear-off edge

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US (1) US20180029063A1 (en)
EP (1) EP3265240B1 (en)
JP (1) JP2018510056A (en)
KR (1) KR20170141656A (en)
CA (1) CA2978220C (en)
DE (1) DE102015203809A1 (en)
ES (1) ES2750009T3 (en)
PL (1) PL3265240T3 (en)
RU (1) RU2017134077A (en)
WO (1) WO2016139200A1 (en)

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CN107802033A (en) * 2017-12-05 2018-03-16 武汉黄鹤楼新材料科技开发有限公司 A kind of filter stick surface coating device and painting method
CN108745706B (en) * 2018-06-05 2020-11-17 淄博天材自动化设备有限公司 Automatic spraying machine
CN108673625B (en) * 2018-06-30 2024-08-09 南通英赛智能装备有限公司 Novel plastic wrap slitter edge processing mechanism
CN111097621A (en) * 2019-11-07 2020-05-05 柳州钢铁股份有限公司 Rust-proof and demisting device for bars
CN112138912A (en) * 2020-09-23 2020-12-29 金华远曦科技有限公司 Adhesive tape surface silicone oil spraying equipment
CN112495640A (en) * 2020-12-11 2021-03-16 瑞安市倪工电线科技有限公司 Copper conductor anti-oxidation structure for overhead transmission line
CN118437561B (en) * 2024-07-08 2024-10-25 溧阳晟达能源科技有限公司 Spraying equipment and spraying method for power battery shell

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Publication number Priority date Publication date Assignee Title
US6206965B1 (en) * 1997-10-02 2001-03-27 Angelo Rao Apparatus for coating a decorative workpiece
ITUD20020045A1 (en) * 2002-02-25 2003-08-25 Delle Vedove Levigatrici Spa VACUUM PAINTING HEAD AND RELATED PAINTING PROCEDURE
JP2005262703A (en) * 2004-03-19 2005-09-29 Konica Minolta Photo Imaging Inc Coating device and coating method
WO2006057484A1 (en) * 2004-11-26 2006-06-01 Lg Chemical Co., Ltd. Apparatus for coating 2-d or 3-d extrusion materials with paint and coating method using the same
KR20090072432A (en) * 2007-12-28 2009-07-02 삼성전자주식회사 A substrate supporting module and a deposition apparatus having the same
US20140272107A1 (en) * 2013-03-15 2014-09-18 Armour Koatings Llc Substrate coating techniques

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Title
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Publication number Publication date
ES2750009T3 (en) 2020-03-24
DE102015203809A1 (en) 2016-09-08
CA2978220A1 (en) 2016-09-09
US20180029063A1 (en) 2018-02-01
PL3265240T3 (en) 2020-01-31
RU2017134077A (en) 2019-04-03
EP3265240A1 (en) 2018-01-10
CA2978220C (en) 2023-03-14
WO2016139200A1 (en) 2016-09-09
JP2018510056A (en) 2018-04-12
KR20170141656A (en) 2017-12-26

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