EP3928939A1 - Device and method for coating a workpiece - Google Patents
Device and method for coating a workpiece Download PDFInfo
- Publication number
- EP3928939A1 EP3928939A1 EP21181415.7A EP21181415A EP3928939A1 EP 3928939 A1 EP3928939 A1 EP 3928939A1 EP 21181415 A EP21181415 A EP 21181415A EP 3928939 A1 EP3928939 A1 EP 3928939A1
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- European Patent Office
- Prior art keywords
- adhesive
- workpiece
- unit
- coating
- tape
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
- B27D5/003—Other working of veneer or plywood specially adapted to veneer or plywood securing a veneer strip to a panel edge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G11/00—Applying adhesives or glue to surfaces of wood to be joined
Definitions
- the invention relates to a device for coating a workpiece, which is preferably at least partially made of wood, wood-based materials, plastic or the like according to the preamble of claim 1, and a corresponding method.
- the workpieces are usually provided with a coating material called an edge in the area of their narrow surface.
- a wide variety of technologies are known for the adhesion of the coating material to the workpiece, such as the use of hot-melt adhesive.
- devices and methods are known in which a separate adhesive web is supplied to adhere the coating material, which is activated, for example, by means of a suitable energy source, in order to adhere the coating material to the workpiece by means of the activated adhesive web.
- a corresponding technology is in the DE 199 55 575 A1 disclosed. Thanks to the decoupling of the coating material and the joining sheet, a significantly larger variety of coating materials can be used. However, it has been shown that the quality and variability of the coating process should be further improved in the known device.
- this object is achieved by a device for coating a workpiece according to claim 1 and a method for coating a workpiece according to claim 14.
- a device for coating a workpiece according to claim 1 and a method for coating a workpiece according to claim 14.
- Particularly preferred developments of the invention are given in the dependent claims.
- the invention is based on the idea of designing the feed unit in such a way that the tape-like adhesive, which has a decisive influence on the quality and reproducibility of the coating result, can be fed and changed easily and precisely.
- the feed unit for the tape-shaped adhesive in a coating device is arranged on or in a support element which can preferably be inserted into and removed from the device together with the feed unit.
- the tape-like adhesive can be precisely positioned and guided thanks to the arrangement on the support element, whereby the quality of the coating process can be ensured or increased.
- the result is easy and reliable handling, which enables an easy and reliable change between different tape-shaped adhesives and thus contributes to increased variability of the coating process or of the device.
- the feed unit contains a supply of tape-shaped adhesive, which is preferably on a Adhesive carrier material is provided and is removable from this.
- the quality and reproducibility of the coating process can be further increased, since impairment of the tape-like adhesive during the feeding process, for example as a result of adjacent adhesive layers sticking to one another, is avoided or minimized.
- lower feed forces are also required for feeding the tape-like adhesive.
- at least one side of the tape-like adhesive can be protected from soiling or other impairments during the feeding process.
- a discharge unit is provided for discharging the adhesive carrier material. It is particularly preferred that the discharge unit is arranged on or in the support element, so that the above-mentioned advantages of increased quality and variability of the coating process can be further increased.
- the feed and discharge units can be designed in different ways within the scope of the present invention. A particularly trouble-free operation with a simple construction results, however, when the feed unit has at least one rotatable roller for storing the tape-shaped adhesive, or when the discharge unit likewise has at least one rotatable roller for receiving the adhesive carrier material.
- the support element is designed as an at least partially closed cassette, wherein the feed unit and / or the discharge unit is or are preferably arranged within the cassette.
- the manageability as well as the storability and possibly also the stackability of the support element are increased.
- the support element is set up to protect the tape-like adhesive from environmental influences such as, in particular, contamination, incidence of light or moisture. In this way, a further significant contribution to the solution of the underlying task is made, namely to increase the quality and also the variability of the coating process.
- the support element has an information unit such as, in particular, an RFID unit, the data of which can be triggered and / or written to by the device preferably without contact, particularly preferably electromagnetically.
- an information unit such as, in particular, an RFID unit
- the data stored in the information unit can relate, for example, to the remaining amount of the tape-shaped adhesive present in the support element, but also to the properties such as the dimensions, the color, the type of adhesive, etc. of the tape-shaped adhesive.
- the quality of the coating process is again guaranteed or increased, specifically when the coating requirements change.
- the support element has at least one deflection element for deflecting the tape-shaped adhesive element.
- the support element has at least one deflection element for deflecting the adhesive carrier material, as a result of which disruptions or Impairments due to unsuitable removal of the adhesive carrier material can be avoided.
- the device has a pressing element for pressing the tape-like adhesive onto the coating material and / or the workpiece.
- the exact position of the tape-shaped adhesive can be achieved in relation to the coating material or the workpiece, which ensures that the tape-shaped adhesive can perform its task without interference and in the right place and, for example, does not wrinkle.
- the pressure element can be adjusted between a working position and a change position. This makes it possible to simplify the process of replacing and replacing the support element with the feed unit provided thereon or in it, and to make it trouble-free.
- the support element can be easily exchanged and exchanged when the pressure element is in its exchange position.
- the pressing element in its working position can carry out a particularly precise and trouble-free pressing of the tape-like adhesive.
- the pressure element can fulfill a double function within the scope of the present invention, namely to activate the tape-like adhesive, i.e. to make it at least partially adhesive.
- the pressure element can have a suitable material, such as silicone.
- the device has an activation unit for activating the tape-shaped adhesive, which is preferably set up that To heat pressure element.
- an activation unit for activating the tape-shaped adhesive which is preferably set up that To heat pressure element.
- a targeted activation of the tape-shaped adhesive can be achieved, which is also integrated with the process of pressing the tape-shaped adhesive, so that the applied activation energy can be precisely adjusted with the aim of optimal adhesion of the tape-shaped adhesive to the coating material or to reach the workpiece.
- the support element has at least one recess into which the pressure element and / or the activation unit extends. This achieves a precise and effective positioning of the pressure element and possibly also the activation unit in relation to the band-shaped adhesive, which enables the pressure element to engage behind the band-shaped adhesive in the region of the recess, for example in its changing position, and then to move it into its working position, whereby the tape-like adhesive is applied to the surface of the pressure element and is thus optimally prepared for pressing.
- a method according to the invention is the subject of the independent patent claim 14. This enables the above-mentioned advantages of the device according to the invention and emphasizes the aspect that the support element can be easily and reliably removed for successive coating processes and replaced by another support element with a suitable tape-like adhesive.
- FIG Fig. 1 A device 1 for coating a workpiece 2 is shown in FIG Fig. 1 shown schematically in a plan view.
- the workpiece 2 to be coated can be, for example, a plate-shaped workpiece which consists at least in sections of wood, wood-based materials, plastics or similar materials or material combinations. Such workpieces are widely used in the furniture and construction element industries.
- the device 1 initially comprises a coating unit 30 for coating the workpiece 2 with a coating material, which has a pressing element 32 for pressing the coating material 4 onto the workpiece 2.
- the coating material can be, for example, a layer or web made of plastic, paper, veneer or a wide variety of other materials, with various multilayer coating materials also being conceivable.
- the coating unit 30 in the present embodiment comprises feed rollers 36, which for this purpose serve to precisely feed the coating material with the tape-like adhesive 20 provided thereon to the surface of the workpiece 2 to be coated.
- the coating unit 30 in the present embodiment has one or more activation units 34, which serve to activate the band-shaped adhesive 20 by the input of energy, in particular heat (ie to make it adhesive), so that the coating material 4 is made using the band-shaped adhesive 20 can be adhered to the workpiece 2.
- the device 1 has a traversing unit 40, which in the present embodiment is designed as a conveyor device such as a conveyor belt or a conveyor chain and serves to convey the workpieces 2 in a direction D along the pressure element 32.
- a traversing unit 40 which in the present embodiment is designed as a conveyor device such as a conveyor belt or a conveyor chain and serves to convey the workpieces 2 in a direction D along the pressure element 32.
- the moving unit within the scope of the present invention can also serve to move the coating unit 30 with respect to the workpiece 2, while the workpiece 2 remains essentially stationary (so-called stationary technology). Mixed forms of both concepts are also possible within the scope of the invention.
- the device 1 shown has a support element 50, on or in which a in Fig. 1 Feed unit, not shown in detail, for feeding a tape-shaped adhesive 20 is arranged.
- the tape-shaped adhesive 20 serves to produce an adhesive connection between the coating material 4 and the workpiece 2.
- the tape-like adhesive can be, for example, a tape which consists entirely or partially of a heat-activatable adhesive such as hot-melt adhesive or the like.
- the tape-shaped adhesive 4 can also contain a carrier web or a carrier matrix in order to ensure the stability of the tape-shaped Increase adhesive.
- the present invention is not limited to the type of adhesive.
- the support element 50 is in Fig. 1 shown in two possible positions.
- the support element 50 with the feed unit arranged therein can be arranged adjacent to the surface of the coating material 4 facing the workpiece 2 in order to apply the band-shaped adhesive 20 to the coating material 4.
- the or a support element 50 can also be arranged adjacent to the movement part of the workpieces 2 (dashed position in Fig. 1 ) in order to apply tape-shaped adhesive to the surface of the workpiece 2 to be coated.
- FIG Fig. 2 One embodiment of the support element 50 is shown in FIG Fig. 2 shown in more detail in a schematic plan view. It can be seen that the carrying unit 50 in the present embodiment is constructed as a cassette which has a housing 58 in which the strip-shaped coating material 20 and numerous components and units are accommodated.
- the cassette 50 in the present embodiment comprises both the feed unit 10 for feeding the tape-shaped adhesive 20 and the discharge unit 14 for discharging the adhesive carrier material 22.
- the feed unit 10 and the discharge unit 14 in the present embodiment are each supported by a rotatable roller 12 and 16 formed, on which the tape-shaped adhesive is stored or the adhesive carrier material is received.
- various other components can also be present, such as, for example, holding or guide elements which serve to ensure a fault-free and wrinkle-free supply of the band-shaped adhesive 20 and a reliable removal of the adhesive carrier material 22.
- the feed roller 12 and the discharge roller 16 each have a star-shaped recess which is used to position and couple the feed unit 10 and the discharge unit 16 or the entire support element 50 within the device 1.
- the device 1 has suitable projections which engage in the recesses 12 ′ and 16 ′ of the rotatable rollers 12 and 16.
- the positioning and coupling means 12 ′, 16 ′ can also serve to effect the winding and unwinding of the adhesive carrier material 22 or the band-shaped adhesive 20 in synchronism with the travel operation of the travel unit 40.
- the rotatable roller 16, which receives the adhesive carrier material 22 can be rotated in the manner shown in FIG Fig. 2 direction shown by the arrow.
- the cassette 50 in the present embodiment comprises an RFID chip 70, in which various data about the cassette 50 can be stored, such as the type of tape-shaped adhesive 20, the remaining amount or already used amount of tape-shaped adhesive 20, the use-by date , etc ..
- the device 1 can read this data from the RFID chip 70 and, if necessary, can also write corresponding or other data to the RFID chip 70, the data exchange being able to take place in a contactless and electromagnetic manner. It should be noted, however, that other types of information units can also be used within the scope of the invention.
- the housing 58 of the cassette 50 is designed as a closed housing in the present embodiment, which has only one - possibly sealed - outlet opening 58 'for the tape-shaped adhesive 20 and an - optionally sealed - inlet opening 58''for the adhesive carrier material 22. It should be noted, however, that the housing can also have different openings, which is preferred within the scope of the invention is that the housing or the support element as a whole can protect the band-shaped adhesive 20 from environmental influences such as, in particular, contamination, incidence of light or moisture. For this, however, it can be sufficient that only certain areas or sides of the housing are completely or partially closed.
- a deflection roller 52 for deflecting the tape-shaped adhesive 20 and a deflection roller 54 for deflecting the adhesive carrier material 22. This allows the course of the tape-shaped adhesive to be specifically adapted to the conditions of the respective application, so that the tape-shaped adhesive can be applied safely and reliably.
- the device 1 has a pressure element 60 which, in the present embodiment, is formed by a pressure roller which consists at least in sections of silicone.
- the pressing element 60 is used to press the band-shaped adhesive 20 onto the coating material 4 or the workpiece 2, depending on the position in which (cf. Fig. 1 ) the support element 50 is currently being used.
- the pressing element 60 is on the one hand around a perpendicular to the plane of the drawing in Fig. 2 running axis rotatable, but also linearly adjustable, as indicated by a double arrow in Fig. 2 indicated. In this way, the pressure element 60 is between the in Fig. 2 shown working position and one - in Fig. 2 shifted downwards - changing position adjustable.
- the device 1 in the present embodiment has an activation unit 62 in the form of a heating device or energy source.
- This serves to activate the band-shaped adhesive 20 by heating, that is to say to make it adhesive.
- there is indirect heating of the tape-shaped adhesive 20 is used, in which the activation unit 62 heats the pressure roller 60 and this in turn at least partially transfers the heat to the tape-shaped adhesive 20.
- the activation unit 62 is arranged adjacent to the pressure roller 60. When the cassette 50 is installed, the pressure roller 60 and the activation unit 62 are located in a recess 56 which is formed or defined in the cassette 50.
- the pressure roller 60 is between the in Fig. 2 shown working position and one - in Fig. 2 offset downwards - changing position adjustable.
- Both the activation unit (s) 34 of the coating unit 30 and the activation unit (s) 62 can each be designed as an energy source, using their energy, in particular heat, on the tape-like adhesive (or in other embodiments also the coating material and / or the workpiece ) can be applied.
- energy sources can be used for this, such as hot air sources, laser sources, infrared sources, ultrasound sources, microwave sources, etc.
- the operation of the device 1 described above takes place, for example, as follows.
- the cassette 50 is in the in Fig. 1 position shown changed while the pressure element 60 is in its change position.
- the pressing element 60 is then pushed forward into its working position and, in the process, deflects the band-shaped adhesive element 20 towards the coating material 4.
- the real Coating operation begins, in which the coating material 4 is conveyed to the coating unit 30 and, at the same time, the band-shaped adhesive 20 is applied to the inner surface of the coating material 4 facing the workpiece 2.
- the tape-like adhesive is indirectly heated by the activation unit 62 and thus adheres to the coating material 4.
- the workpieces 2 are also simultaneously moved on the moving unit 40 in the in Fig. 1 shown flow direction D promoted.
- the coating material 4 can now be applied and pressed against the surface of the workpiece 2 to be coated with the interposition of the band-shaped adhesive 20. Shortly beforehand, it is finally activated by means of the activation unit (s) 34, so that an adhesive bond is created between the coating material 4 and the workpiece 2.
- the pressure roller 60 is moved back from the working position to the changing position, and the cassette 50 is removed from the device 1.
- Another cassette 50 with the desired band-shaped adhesive 20 can then be inserted into the device 1 in order to then move the pressure element 60 again from the changing position into the working position.
- a corresponding coating process can now be carried out again.
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- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Vorrichtung (1) zum Beschichten eines Werkstücks (2), das bevorzugt zumindest abschnittsweise aus Holz, Holzwerkstoffen, Kunststoff oder dergleichen besteht, umfassend eine Zuführeinheit (10) zum Zuführen eines bandförmigen Haftmittels (20), das dazu dient, eine Haftverbindung zwischen einem Beschichtungsmaterial (4) und dem Werkstück (4) herzustellen, eine Beschichtungseinheit (30) zum Beschichten des Werkstücks (2), das ein Andrückelement (32) zum Andrücken des Beschichtungsmaterials (4) an das Werkstück aufweist, eine Verfahreinheit (40) zum Herbeiführen einer Relativbewegung zwischen dem Andrückelement (22) und dem Werkstück (2). Die Zuführeinheit (10) ist an oder in einem Tragelement (50) angeordnet, das bevorzugt gemeinsam mit der Zuführeinheit (10) in die Vorrichtung (1) einsetzbar und aus dieser entnehmbar ist.Device (1) for coating a workpiece (2), which preferably consists at least in sections of wood, wood materials, plastic or the like, comprising a feed unit (10) for feeding a band-shaped adhesive (20) which serves to create an adhesive bond between a coating material (4) and the workpiece (4), a coating unit (30) for coating the workpiece (2), which has a pressing element (32) for pressing the coating material (4) onto the workpiece, a traversing unit (40) for bringing about a Relative movement between the pressing element (22) and the workpiece (2). The feed unit (10) is arranged on or in a support element (50) which can be inserted into the device (1) and removed from it, preferably together with the feed unit (10).
Description
Die Erfindung betrifft eine Vorrichtung zum Beschichten eines Werkstücks, das bevorzugt zumindest abschnittsweise aus Holz, Holzwerkstoffen, Kunststoff oder dergleichen besteht nach dem Oberbegriff des Patentanspruchs 1, sowie ein entsprechendes Verfahren.The invention relates to a device for coating a workpiece, which is preferably at least partially made of wood, wood-based materials, plastic or the like according to the preamble of
Vorrichtungen und Verfahren der eingangs genannten Art kommen im Stand der Technik verbreitet zum Einsatz, insbesondere im Bereich der Möbel- und Bauelementeindustrie. Meist werden die Werkstücke im Bereich ihrer Schmalfläche mit einem als Kante bezeichneten Beschichtungsmaterial versehen. Beim Anhaften des Beschichtungsmaterials an dem Werkstück sind unterschiedlichste Technologien bekannt, wie etwa die Verwendung von Schmelzkleber.Devices and methods of the type mentioned at the beginning are widely used in the prior art, in particular in the furniture and construction element industries. The workpieces are usually provided with a coating material called an edge in the area of their narrow surface. A wide variety of technologies are known for the adhesion of the coating material to the workpiece, such as the use of hot-melt adhesive.
Darüber hinaus sind Vorrichtungen und Verfahren bekannt, bei denen zum Anhaften des Beschichtungsmaterials eine separate Haftmittelbahn zugeführt wird, die beispielsweise mittels einer geeigneten Energiequelle aktiviert wird, um das Beschichtungsmaterial mittels der aktivierten Haftmittelbahn an dem Werkstück anzuhaften. Eine entsprechende Technologie ist in der
Es ist Aufgabe der Erfindung, eine Vorrichtung und ein Verfahren der eingangs genannten Art bereitzustellen, die eine hohe Qualität und Variabilität des Beschichtungsprozesses ermöglichen.It is the object of the invention to provide a device and a method of the type mentioned at the outset which enable the coating process to be of high quality and variability.
Diese Aufgabe wird erfindungsgemäß durch eine Vorrichtung zum Beschichten eines Werkstücks nach Anspruch 1 sowie ein Verfahren zum Beschichten eines Werkstücks nach Anspruch 14 gelöst. Besonders bevorzugte Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen angegeben.According to the invention, this object is achieved by a device for coating a workpiece according to
Der Erfindung liegt der Gedanke zugrunde, die Zuführeinheit derart auszugestalten, dass das bandförmige Haftmittel, das maßgeblichen Einfluss auf die Qualität und Reproduzierbarkeit des Beschichtungsergebnisses besitzt, einfach und präzise zugeführt und gewechselt werden kann. Zu diesem Zweck ist erfindungsgemäß vorgesehen, dass das bei einer Beschichtungsvorrichtung die Zuführeinheit für das bandförmige Haftmittel an oder in einem Tragelement angeordnet ist, das bevorzugt gemeinsam mit der Zuführeinheit in die Vorrichtung einsetzbar und aus dieser entnehmbar ist. Auf diese Weise wird erfindungsgemäß zunächst erreicht, dass das bandförmige Haftmittel dank der Anordnung auf dem Tragelement präzise positioniert und geführt werden kann, wodurch Qualität des Beschichtungsprozesses sichergestellt bzw. gesteigert werden kann. Darüber hinaus ergibt sich eine leichte und zuverlässige Handhabbarkeit, die einen leichten und zuverlässigen Wechsel zwischen unterschiedlichen bandförmige Haftmitteln ermöglicht und somit zu einer erhöhten Variabilität des Beschichtungsprozesses bzw. der Vorrichtung beiträgt.The invention is based on the idea of designing the feed unit in such a way that the tape-like adhesive, which has a decisive influence on the quality and reproducibility of the coating result, can be fed and changed easily and precisely. For this purpose it is provided according to the invention that the feed unit for the tape-shaped adhesive in a coating device is arranged on or in a support element which can preferably be inserted into and removed from the device together with the feed unit. In this way, according to the invention, it is initially achieved that the tape-like adhesive can be precisely positioned and guided thanks to the arrangement on the support element, whereby the quality of the coating process can be ensured or increased. In addition, the result is easy and reliable handling, which enables an easy and reliable change between different tape-shaped adhesives and thus contributes to increased variability of the coating process or of the device.
Darüber hinaus ist gemäß einer Weiterbildung der Erfindung vorgesehen, dass die Zuführeinheit einen Vorrat an bandförmigem Haftmittel enthält, das bevorzugt auf einem Haftmittelträgermaterial vorgesehen und von diesem abziehbar ist. Hierdurch kann die Qualität und Reproduzierbarkeit des Beschichtungsprozesses weiter gesteigert werden, da Beeinträchtigungen des bandförmigen Haftmittels während des Zuführvorganges, etwa infolge eines Aneinanderhaftens benachbarter Haftmittelschichten, vermieden bzw. minimiert wird. Darüber hinaus sind für das Zuführen des bandförmigen Haftmittels auch geringere Vorschubkräfte erforderlich. Nicht zuletzt kann zumindest eine Seite des bandförmigen Haftmittels während des Zuführvorgangs vor Verschmutzungen oder sonstigen Beeinträchtigungen geschützt werden.In addition, it is provided according to a development of the invention that the feed unit contains a supply of tape-shaped adhesive, which is preferably on a Adhesive carrier material is provided and is removable from this. As a result, the quality and reproducibility of the coating process can be further increased, since impairment of the tape-like adhesive during the feeding process, for example as a result of adjacent adhesive layers sticking to one another, is avoided or minimized. In addition, lower feed forces are also required for feeding the tape-like adhesive. Last but not least, at least one side of the tape-like adhesive can be protected from soiling or other impairments during the feeding process.
Eine weitere Reduzierung von Störungen und Beeinträchtigungen des Beschichtungsprozesses ergibt sich, wenn gemäß einer Weiterbildung der Erfindung eine Abführeinheit zum Abführen des Haftmittel-Trägermaterials vorgesehen ist. Dabei ist es besonders bevorzugt, dass die Abführeinheit an oder in dem Tragelement angeordnet ist, sodass die oben genannten Vorteile einer erhöhten Qualität und Variabilität des Beschichtungsprozesses weiter gesteigert werden können.A further reduction of disturbances and impairments of the coating process results if, according to a further development of the invention, a discharge unit is provided for discharging the adhesive carrier material. It is particularly preferred that the discharge unit is arranged on or in the support element, so that the above-mentioned advantages of increased quality and variability of the coating process can be further increased.
Die Zu- und Abführeinheiten können im Rahmen der vorliegenden Erfindung auf unterschiedliche Art und Weise ausgestaltet sein. Ein besonders störungsfreier Betrieb bei einfacher Konstruktion ergibt sich jedoch, wenn die Zuführeinheit mindestens eine drehbare Rolle zum Bevorraten des bandförmigen Haftmittels aufweist, bzw. wenn die Abführeinheit ebenfalls mindestens eine drehbare Rolle zum Aufnehmen des Haftmittel-Trägermaterials aufweist.The feed and discharge units can be designed in different ways within the scope of the present invention. A particularly trouble-free operation with a simple construction results, however, when the feed unit has at least one rotatable roller for storing the tape-shaped adhesive, or when the discharge unit likewise has at least one rotatable roller for receiving the adhesive carrier material.
Gemäß einer Weiterbildung der Erfindung ist ferner vorgesehen, dass das Tragelement als zumindest teilweise geschlossene Kassette ausgebildet wird, wobei bevorzugt die Zuführeinheit und/oder die Abführeinheit innerhalb der Kassette angeordnet ist bzw. sind. Auf diese Weise werden die Handhabbarkeit als auch die Lagerbarkeit und gegebenenfalls auch Stapelbarkeit des Tragelements erhöht. Darüber hinaus ergibt sich auch ein verbesserter Schutz des bandförmigen Haftmittels vor Beschädigungen oder Umwelteinflüssen. Dabei ist es besonders bevorzugt, dass das Tragelement eingerichtet ist, das bandförmige Haftmittel vor Umwelteinflüssen wie insbesondere Verschmutzung, Lichteinfall oder Feuchtigkeit zu schützen. Auf diese Weise wird ein weiterer erheblicher Beitrag zur Lösung der zugrundeliegenden Aufgabe geleistet, nämlich die Qualität und auch Variabilität des Beschichtungsprozesses zu steigern.According to a further development of the invention, it is further provided that the support element is designed as an at least partially closed cassette, wherein the feed unit and / or the discharge unit is or are preferably arranged within the cassette. In this way, the manageability as well as the storability and possibly also the stackability of the support element are increased. Furthermore This also results in an improved protection of the tape-like adhesive against damage or environmental influences. It is particularly preferred that the support element is set up to protect the tape-like adhesive from environmental influences such as, in particular, contamination, incidence of light or moisture. In this way, a further significant contribution to the solution of the underlying task is made, namely to increase the quality and also the variability of the coating process.
Gemäß einer Weiterbildung der Erfindung ist ferner vorgesehen, dass das Tragelement eine Informationseinheit wie insbesondere eine RFID-Einheit aufweist, deren Daten durch die Vorrichtung bevorzugt berührungslos, besonders bevorzugt elektromagnetisch auslösbar und/oder beschreibbar sind. Auf diese Weise wird vermieden, dass irrtümlich mit einem ungeeigneten bandförmigen Haftmittel gearbeitet wird oder beispielsweise der Beschichtungsprozess durch ein vorzeitig aufgebrauchtes bandförmiges Haftmittel unterbrochen wird. In dieser Hinsicht können die in der Informationseinheit hinterlegten Daten beispielsweise die Restmenge des in dem Tragelement vorhandenen bandförmigen Haftmittels, aber auch die Eigenschaften wie etwa die Abmessungen, die Farbe, den Haftmitteltyp etc. des bandförmigen Haftmittels betreffen. Im Ergebnis ergibt sich hieraus erneut eine sichergestellte bzw. gesteigerte Qualität des Beschichtungsprozesses, und zwar gerade bei wechselnden Beschichtungsanforderungen.According to a further development of the invention, it is further provided that the support element has an information unit such as, in particular, an RFID unit, the data of which can be triggered and / or written to by the device preferably without contact, particularly preferably electromagnetically. This avoids mistakenly working with an unsuitable tape-like adhesive or, for example, the coating process being interrupted by a tape-like adhesive that has been used up prematurely. In this regard, the data stored in the information unit can relate, for example, to the remaining amount of the tape-shaped adhesive present in the support element, but also to the properties such as the dimensions, the color, the type of adhesive, etc. of the tape-shaped adhesive. As a result, the quality of the coating process is again guaranteed or increased, specifically when the coating requirements change.
Um einen zügigen und störungsfreien Zuführbetrieb des bandförmigen Haftmittels sicherzustellen, ist gemäß einer Weiterbildung der Erfindung vorgesehen, dass das Tragelement mindestens ein Umlenkelement zum Umlenken des bandförmigen Haftelements aufweist. Alternativ oder zusätzlich ist gemäß dieser Weiterbildung vorgesehen, dass das Tragelement mindestens ein Umlenkelement zum Umlenken des Haftmittel-Trägermaterials aufweist, wodurch Störungen oder Beeinträchtigungen durch ein ungeeignetes Abführen des Haftmittel-Trägermaterials vermieden werden.In order to ensure a rapid and trouble-free feeding operation of the tape-shaped adhesive, it is provided according to a development of the invention that the support element has at least one deflection element for deflecting the tape-shaped adhesive element. Alternatively or additionally, it is provided according to this development that the support element has at least one deflection element for deflecting the adhesive carrier material, as a result of which disruptions or Impairments due to unsuitable removal of the adhesive carrier material can be avoided.
Darüber hinaus ist gemäß einer Weiterbildung der Erfindung vorgesehen, dass die Vorrichtung ein Andrückelement zum Andrücken des bandförmigen Haftmittels an das Beschichtungsmaterial und/oder das Werkstück aufweist. Hierdurch kann eine genaue Positionsfestlegung des bandförmigen Haftmittels in Bezug auf das Beschichtungsmaterial bzw. des Werkstücks erreicht werden, wodurch sichergestellt wird, dass das bandförmige Haftmittel störungsfrei und an der richtigen Stelle seine Aufgabe erfüllen kann und dabei beispielsweise auch keine Falten wirft. Dabei ist es besonders bevorzugt, dass das Andrückelement zwischen einer Arbeitsposition und einer Wechselposition verstellbar ist. Hierdurch wird ermöglicht, den Vorgang des Ein- und Auswechselns des Tragelements mit der daran oder darin vorgesehenen Zuführeinheit zu erleichtern und störungsfrei zu gestalten. So kann beispielsweise ein leichtes Ein- und Auswechseln des Tragelements durchgeführt werden, wenn sich das Andrückelement in seiner Wechselposition befindet. Demgegenüber kann das Andrückelement in seiner Arbeitsposition ein besonders präzises und störungsfreies Andrücken des bandförmigen Haftmittels durchführen.In addition, according to a development of the invention, it is provided that the device has a pressing element for pressing the tape-like adhesive onto the coating material and / or the workpiece. In this way, the exact position of the tape-shaped adhesive can be achieved in relation to the coating material or the workpiece, which ensures that the tape-shaped adhesive can perform its task without interference and in the right place and, for example, does not wrinkle. It is particularly preferred that the pressure element can be adjusted between a working position and a change position. This makes it possible to simplify the process of replacing and replacing the support element with the feed unit provided thereon or in it, and to make it trouble-free. Thus, for example, the support element can be easily exchanged and exchanged when the pressure element is in its exchange position. In contrast, the pressing element in its working position can carry out a particularly precise and trouble-free pressing of the tape-like adhesive.
Darüber hinaus kann das Andrückelement im Rahmen der vorliegenden Erfindung eine Doppelfunktion erfüllen, nämlich das bandförmige Haftmittel zu aktivieren, d.h. zumindest teilweise haftend zu machen. Zu diesem Zweck kann das Andrückelement ein geeignetes Material aufweisen, wie beispielsweise Silikon.In addition, the pressure element can fulfill a double function within the scope of the present invention, namely to activate the tape-like adhesive, i.e. to make it at least partially adhesive. For this purpose, the pressure element can have a suitable material, such as silicone.
In dieser Hinsicht ist gemäß einer Weiterbildung der Erfindung vorgesehen, dass die Vorrichtung eine Aktivierungseinheit zum Aktivieren des bandförmigen Haftmittels aufweist, die bevorzugt eingerichtet ist, das Andrückelement zu erwärmen. Auf diese Weise kann eine gezielte Aktivierung des bandförmigen Haftmittels erreicht werden, die darüber hinaus auch mit dem Vorgang des Andrückens des bandförmigen Haftmittels integriert ist, sodass sich die eingebrachte Aktivierungsenergie präzise einstellen lässt mit dem Ziel, ein optimales Anhaften des bandförmigen Haftmittels an dem Beschichtungsmaterial oder dem Werkstück zu erreichen.In this regard, according to a further development of the invention, it is provided that the device has an activation unit for activating the tape-shaped adhesive, which is preferably set up that To heat pressure element. In this way, a targeted activation of the tape-shaped adhesive can be achieved, which is also integrated with the process of pressing the tape-shaped adhesive, so that the applied activation energy can be precisely adjusted with the aim of optimal adhesion of the tape-shaped adhesive to the coating material or to reach the workpiece.
Darüber hinaus ist gemäß einer Weiterbildung der Erfindung vorgesehen, dass das Tragelement mindestens eine Ausnehmung aufweist, in die das Andrückelement und/oder die Aktivierungseinheit hineinreicht. Hierdurch wird eine präzise und effektive Positionierung des Andrückelements und gegebenenfalls auch der Aktivierungseinheit in Bezug auf das bandförmige Haftmittel erreicht, wobei ermöglicht wird, dass das Andrückelement beispielsweise in seiner Wechselposition das bandförmige Haftmittel im Bereich der Ausnehmung hintergreift und anschließend in seine Arbeitsposition verstellt wird, wobei das bandförmige Haftmittel in diesem Zuge an die Oberfläche des Andrückelements angelegt und somit optimal für das Andrücken vorbereitet wird.In addition, a development of the invention provides that the support element has at least one recess into which the pressure element and / or the activation unit extends. This achieves a precise and effective positioning of the pressure element and possibly also the activation unit in relation to the band-shaped adhesive, which enables the pressure element to engage behind the band-shaped adhesive in the region of the recess, for example in its changing position, and then to move it into its working position, whereby the tape-like adhesive is applied to the surface of the pressure element and is thus optimally prepared for pressing.
Ein erfindungsgemäßes Verfahren ist Gegenstand des nebengeordneten Patentanspruchs 14. Dieses ermöglicht die oben genannten Vorteile der erfindungsgemäßen Vorrichtung und betont dabei den Aspekt, dass das Tragelement leicht und zuverlässig für aufeinanderfolgende Beschichtungsvorgänge entnommen und durch ein anderes Tragelement mit einem geeigneten bandförmigen Haftmittel ersetzt werden kann.A method according to the invention is the subject of the
-
Fig. 1 zeigt schematisch eine Vorrichtung zum Beschichten eines Werkstücks gemäß einer Ausführungsform der Erfindung.Fig. 1 shows schematically an apparatus for coating a workpiece according to an embodiment of the invention. -
Fig. 2 zeigt schematisch eine Ausführungsform eines Tragelements für die inFig. 1 gezeigte Beschichtungsvorrichtung.Fig. 2 shows schematically an embodiment of a support element for the inFig. 1 Coating device shown.
Bevorzugte Ausführungsformen der Erfindung werden nachfolgend ausführlich unter Bezugnahme auf die begleitenden Zeichnungen beschrieben.Preferred embodiments of the invention are described in detail below with reference to the accompanying drawings.
Eine Vorrichtung 1 zum Beschichten eines Werkstücks 2 ist in
Die Vorrichtung 1 umfasst zunächst eine Beschichtungseinheit 30 zum Beschichten des Werkstücks 2 mit einem Beschichtungsmaterial, die ein Andrückelement 32 zum Andrücken des Beschichtungsmaterials 4 an das Werkstück 2 aufweist. Bei dem Beschichtungsmaterial kann es sich beispielsweise um eine Schicht oder Bahn aus Kunststoff, Papier, Furnier oder vielfältigen anderen Materialien handeln, wobei auch verschiedene mehrschichtige Beschichtungsmaterialien denkbar sind.The
Darüber hinaus umfasst die Beschichtungseinheit 30 in der vorliegenden Ausführungsform Zuführrollen 36, die dazu dienen, das Beschichtungsmaterial mit dem darauf gegebenenfalls vorgesehenen bandförmigen Haftmittel 20 präzise zu der zu beschichtenden Oberfläche des Werkstücks 2 zuzuführen. Ferner besitzt die Beschichtungseinheit 30 in der vorliegenden Ausführungsform eine oder mehrere Aktivierungseinheiten 34, die dazu dienen, das bandförmige Haftmittel 20 durch Eintrag von Energie, wie insbesondere Wärme zu aktivieren (d. h. haftend zu machen), sodass das Beschichtungsmaterial 4 unter Einsatz des bandförmigen Haftmittels 20 an das Werkstück 2 angehaftet werden kann.In addition, the
Wie in
Darüber hinaus umfasst die in
Das Tragelement 50 ist in
Eine Ausführungsform des Tragelements 50 ist in
So umfasst die Kassette 50 in der vorliegenden Ausführungsform sowohl die Zuführeinheit 10 zum Zuführen des bandförmigen Haftmittels 20 als auch die Abführeinheit 14 zum Abführen des Haftmittel-Trägermaterials 22. Dabei sind die Zuführeinheit 10 und die Abführeinheit 14 in der vorliegenden Ausführungsform jeweils durch eine drehbare Rolle 12 bzw. 16 gebildet, auf denen das bandförmige Haftmittel bevorratet bzw. das Haftmittel-Trägermaterial aufgenommen wird. Es können jedoch auch verschiedene andere Bauteile vorhanden sein, wie beispielsweise Halte- oder Führungselemente, die dazu dienen, ein fehler- und faltenfreies Zuführen des bandförmigen Haftmittels 20 und ein sicheres Abführen des Haftmittel-Trägermaterials 22 sicherzustellen.Thus, the
Wie in
Nicht zuletzt umfasst die Kassette 50 in der vorliegenden Ausführungsform einen RFID-Chip 70, in welchem verschiedene Daten über die Kassette 50 gespeichert werden können, wie beispielsweise die Art des bandförmigen Haftmittels 20, die Restmenge oder bereits verbrauchte Menge an bandförmigem Haftmittel 20, das Haltbarkeitsdatum, etc.. Diese Daten kann die Vorrichtung 1 aus dem RFID-Chip 70 auslesen und kann bei Bedarf auch entsprechende oder andere Daten in den RFID-Chip 70 schreiben, wobei der Datenaustausch berührungslos und elektromagnetisch erfolgen kann. Es ist jedoch zu beachten, dass im Rahmen der Erfindung auch andersartige Informationseinheiten zum Einsatz kommen können.Last but not least, the
Das Gehäuse 58 der Kassette 50 ist in der vorliegenden Ausführungsform als geschlossenes Gehäuse ausgeführt, das lediglich eine - gegebenenfalls abgedichtete-Austrittsöffnung 58' für das bandförmige Haftmittel 20 sowie eine - gegebenenfalls abgedichtete - Eintrittsöffnung 58'' für das Haftmittelträgermaterial 22 besitzt. Es ist jedoch zu beachten, dass das Gehäuse auch verschiedene Öffnungen besitzen kann, wobei es im Rahmen der Erfindung bevorzugt ist, dass das Gehäuse bzw. das Tragelement insgesamt das bandförmige Haftmittel 20 vor Umwelteinflüssen wie insbesondere Verschmutzung, Lichteinfall oder Feuchtigkeit schützen kann. Hierfür kann es jedoch genügen, dass nur bestimmte Bereiche oder Seiten des Gehäuses ganz oder teilweise geschlossen sind.The
Innerhalb der Kassette 50 befinden sich darüber hinaus eine Umlenkrolle 52 zum Umlenken des bandförmigen Haftmittels 20 sowie eine Umlenkrolle 54 zum Umlenken des Haftmittel-Trägermaterials 22. Hierdurch kann der Verlauf des bandförmigen Haftmittels gezielt an die Bedingungen des jeweiligen Einsatzzwecks angepasst werden, sodass das bandförmige Haftmittel sicher und zuverlässig aufgebracht werden kann.Inside the
Zu diesem Zweck weist die Vorrichtung 1 ein Andrückelement 60 auf, das in der vorliegenden Ausführungsform durch eine Andrückrolle gebildet ist, die zumindest abschnittsweise aus Silikon besteht. Das Andrückelement 60 dient dazu, das bandförmige Haftmittel 20 an das Beschichtungsmaterial 4 bzw. das Werkstück 2 anzudrücken, je nachdem, in welcher Position (vgl.
Wie in
Sowohl die Aktivierungseinheit(en) 34 der Beschichtungseinheit 30 als auch die Aktivierungseinheit(en) 62 können jeweils als Energiequelle ausgestaltet sein, mittles derer Energie, insbesondere Wärme, auf das bandförmige Haftmittel (bzw. bei anderen Ausführungsformen auch das Beschichtungsmaterial und/oder das Werkstück) aufgebracht werden kann. Hierfür kommen unterschiedlichste Energiequellen in Betracht wie beispielsweise Heißluftquellen, Laserquellen, Infrarotquellen, Ultraschallquellen, Mikrowellenquellen etc.Both the activation unit (s) 34 of the
Der Betrieb der vorstehend beschriebenen Vorrichtung 1 vollzieht sich beispielsweise wie folgt. Zunächst wird die Kassette 50 in der in
Ebenfalls simultan werden die Werkstücke 2 auf der Verfahreinheit 40 in der in
Sobald beispielsweise der Vorrat an bandförmigem Haftmittel 20 aufgebraucht ist oder ein anderes bandförmiges Haftmittel 20 benötigt wird, etwa weil andere Abmessungen oder eine andere Farbe des bandförmigen Haftmittels 20 benötigt wird, wird die Andrückrolle 60 von der Arbeitsposition in die Wechselposition zurückgefahren, und die Kassette 50 wird aus der Vorrichtung 1 entnommen. Anschließend kann eine andere Kassette 50 mit dem gewünschten bandförmigen Haftmittel 20 in die Vorrichtung 1 eingesetzt werden, um anschließend das Andrückelement 60 wiederum von der Wechselposition in die Arbeitsposition zu verfahren. Nunmehr kann erneut ein entsprechender Beschichtungsvorgang durchgeführt werden.As soon as, for example, the supply of tape-shaped
Claims (14)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020116753.9A DE102020116753A1 (en) | 2020-06-25 | 2020-06-25 | Device and method for coating a workpiece |
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| Publication Number | Publication Date |
|---|---|
| EP3928939A1 true EP3928939A1 (en) | 2021-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21181415.7A Withdrawn EP3928939A1 (en) | 2020-06-25 | 2021-06-24 | Device and method for coating a workpiece |
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| EP (1) | EP3928939A1 (en) |
| DE (1) | DE102020116753A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102022132941A1 (en) | 2022-12-12 | 2024-06-13 | Homag Gmbh | Cassette for holding a coating material, coating material, coating device and method for coating workpieces |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19955575A1 (en) | 1999-11-18 | 2001-05-23 | Brandt Kantentechnik Gmbh | Method and device for adhering a covering material to workpiece surfaces of continuously moving or stationary plate or strip-shaped workpieces |
| DE102019112600A1 (en) * | 2019-05-14 | 2020-11-19 | Felder Kg | Device for coating a surface |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20204285U1 (en) | 2002-03-18 | 2002-07-04 | Paul Ott Gmbh Maschinenfabrik, Lambach | Device for storing edge magazines |
| DE102013001893A1 (en) | 2013-02-02 | 2014-08-07 | Ima Klessmann Gmbh Holzbearbeitungssysteme | Bekantungsvorrichtung |
| DE102015213358A1 (en) | 2015-07-16 | 2017-01-19 | Homag Holzbearbeitungssysteme Gmbh | Feeding device for coating material |
| DE102017125039B3 (en) | 2017-10-26 | 2018-08-16 | Ima Klessmann Gmbh Holzbearbeitungssysteme | Edge band cassette for edge bands |
| DE102017125937A1 (en) | 2017-11-07 | 2019-05-09 | Ima Klessmann Gmbh Holzbearbeitungssysteme | Edge processing arrangement |
| DE102018127617A1 (en) | 2018-11-06 | 2020-05-07 | Homag Gmbh | Method and device for coating a workpiece |
-
2020
- 2020-06-25 DE DE102020116753.9A patent/DE102020116753A1/en not_active Withdrawn
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2021
- 2021-06-24 EP EP21181415.7A patent/EP3928939A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19955575A1 (en) | 1999-11-18 | 2001-05-23 | Brandt Kantentechnik Gmbh | Method and device for adhering a covering material to workpiece surfaces of continuously moving or stationary plate or strip-shaped workpieces |
| WO2001036168A1 (en) * | 1999-11-18 | 2001-05-25 | Brandt Kantentechnik Gmbh | Method and device for adhering a covering material to surfaces of plate- or strip-formed workpieces that are continually moved or arranged in a stationary manner |
| DE102019112600A1 (en) * | 2019-05-14 | 2020-11-19 | Felder Kg | Device for coating a surface |
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| DE102020116753A1 (en) | 2021-12-30 |
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