EP3317117A1 - Method for coating and identifying workpieces - Google Patents
Method for coating and identifying workpiecesInfo
- Publication number
- EP3317117A1 EP3317117A1 EP16739050.9A EP16739050A EP3317117A1 EP 3317117 A1 EP3317117 A1 EP 3317117A1 EP 16739050 A EP16739050 A EP 16739050A EP 3317117 A1 EP3317117 A1 EP 3317117A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- workpiece
- print head
- curable liquid
- liquid
- coating
- 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.)
- Withdrawn
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/26—Printing on other surfaces than ordinary paper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/324—Reliefs
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/385—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/44—Typewriters or selective printing mechanisms having dual functions or combined with, or coupled to, apparatus performing other functions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
- B41M3/144—Security printing using fluorescent, luminescent or iridescent effects
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
- B42D25/369—Magnetised or magnetisable materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
- B42D25/378—Special inks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C5/00—Processes for producing special ornamental bodies
- B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
- B44C5/0446—Ornamental plaques, e.g. decorative panels, decorative veneers bearing graphical information
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F3/0297—Forms or constructions including a machine-readable marking, e.g. a bar code
- G09F3/0298—Bar code orientation; Labels in which the bar code orientation is different
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0041—Digital printing on surfaces other than ordinary paper
- B41M5/0047—Digital printing on surfaces other than ordinary paper by ink-jet printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0041—Digital printing on surfaces other than ordinary paper
- B41M5/0076—Digital printing on surfaces other than ordinary paper on wooden surfaces, leather, linoleum, skin, or flowers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0082—Digital printing on bodies of particular shapes
- B41M5/0088—Digital printing on bodies of particular shapes by ink-jet printing
Definitions
- the present invention relates to a method for coating and marking workpieces, which are preferably at least partially made of wood, wood-based materials or the like.
- the present invention aims to provide a method of coating and marking workpieces which overcomes the aforementioned problems.
- Claim 1 provides as a solution a method having the features of independent claim 1. Further preferred embodiments are listed in the dependent claims.
- the method according to the invention comprises the following steps: bringing about a relative movement between a workpiece and a print head, in particular an inkjet print head or a laser print head, printing on at least one section of the workpiece with a curable liquid, preferably with an ink that has cured contains or can absorb readable information, wherein the curable liquid contains color particles, which form a visible surface after curing of the liquid, and / or a further coating is applied to the at least substantially cured liquid.
- the method according to the invention has the advantage that the information which can be provided with the curable liquid on the workpiece remains, on the one hand, permanently linked to the workpiece, and, on the other hand, that the marking region is optically imperceptible.
- a permanent Labeling for example, the reproduction of defective workpieces guaranteed.
- the curable liquid can provide a structured surface or three-dimensional structure in the cured state.
- the further coating can be used to increase the abrasion resistance or generally to protect the cured liquid.
- the readable information is reversible or irreversible.
- information can either be modified or permanently linked to the identified workpiece.
- the hardened liquid contains orientable particles, wherein the particles are at least partially magnetized or magnetizable, preferably ferromagnetic.
- the cured liquid may comprise a fluorescent material. This can thus be read only under certain environmental conditions.
- the fluorescent liquid is optically imperceptible.
- the curable liquid comprising a fluorescent material may be coated with a protective layer, for example a lacquer.
- the readable information provided by the fluorescent material can be read out with an optical reading unit.
- the readable information is a barcode.
- the bar code is formed, for example, from a fluorescent material, it is imperceptible in the usual field of use of a workpiece.
- the hardened liquid For example, orien ierbare particles, wherein the particles are at least partially magnetized or magnetizable, preferably ferromagnetic, areas with the particles if necessary. differently spaced to each other or in a certain Mus he distributed and / or dimensioned to be provided.
- a dimensionally stable coating material in particular a sipe-shaped edge band, is applied to this as a further coating.
- a dimensionally stable coating material in particular a sipe-shaped edge band
- a pasty mass is applied to form a three-dimensional structure.
- the pasty mass can also cover the hardened liquid. This pasty mass can be brought by means of a print head au.
- the readable information is read out by electrical and / or magnetic and / or electromagnetic fields.
- the readout of the information can be made contactless.
- an optical reading unit is possible, in particular in the case of a curable liquid which has a fluorescent material.
- the readable information contains data for the marked workpiece, in particular the dimension, for the workpiece number, for Manufacturer and / or date and / or material type and / or material property.
- the nature and extent of the information can thus be adapted to the specific requirements.
- the said workpiece is a workpiece of a wood material
- Solid wood workpiece or a wood workpiece a workpiece made of a composite material, such as a chipboard, or a layer material.
- a workpiece made of a composite material such as a chipboard, or a layer material.
- the plastic material in sections on iron, or mineral bonded materials such as a so-called Corian ® - plate.
- Such workpieces are used in particular in the furniture or component industry.
- the said workpiece may be a worktop, in particular a kitchen worktop.
- a kitchen countertop can be provided as a further coating in sections with a teflon ink in order to be more resistant to heat in a region in which cooking surfaces are later introduced into the kitchen worktop.
- an enhanced moisture-repellent layer may be provided in certain areas of the workpiece.
- "dirt-repellent" components can be added to protect the workpiece.
- the curable liquid which in the cured state contains or can receive readable information, is introduced on a flat side of the workpiece or into a recess provided in the workpiece, in particular a groove or bore.
- a structure i is embossed before complete curing of the curable liquid.
- the hardened liquid can Provide three-dimensional structure on which by means of the further coating, a further surface layer is applied.
- the bringing about of a relative movement between the workpiece and the print head is preferably carried out by means of a conveying device, in particular a belt or chain conveyor.
- the print head it is possible to guide the print head along a side of the workpiece to be coated.
- the workpiece can be held by means of a holding device, for example, suction clamps or clamping devices.
- Fig. 1 is a schematic plan view of an apparatus for carrying out the method for coating and marking workpieces
- the in Fig. 1 device shown in a plan view comprises a conveying means 1, which in the present case is a circulating belt.
- a further circulating belt can be provided which supports the workpieces W against the one shown in FIG. 1 illustrated circumferential belt 1 presses (so-called top pressure).
- top pressure the top pressure
- the device comprises a print head 10, which is provided laterally of the conveyor belt 1, wherein the print head 10 is adapted to print at least one narrow side of the plate-shaped workpiece W.
- the print head 10 is aligned in the present embodiment in a horizontal direction.
- the print head 10 is rotatably supported by a pivot axis.
- the ink applied by the print head 10 which is in particular an inkjet print head or a laser print head, contains magnetic or magnetizable particles according to an embodiment of the present invention.
- the particles can be applied to the respective workpiece W in the form of a line matrix.
- the ink sprayed on the workpiece by the print head 10 contains magnetic particles or particles having fluorescent properties integrated with the actual ink.
- the curing unit 11 may be a hot air source with which at least the surface of the applied ink facing away from the workpiece W is cured.
- the curing unit 11 downstream in the direction of passage is a coating unit 12, which is also a print head in the present embodiment.
- the ink applied by the print head 10 is provided with a further coating, in particular an ink or a lacquer.
- the coating unit 12 can be provided with a swivel axis which makes it possible to print workpieces "over the corner.” By printing "over the corner", the corner and joint area can be covered by means of the ink or coating.
- a dimensionally stable coating material such as an edge band, and applied to the workpiece side, which was printed with the printhead 10 in the previous step.
- a flat marking area is applied by the print head 10, which is visually perceptible per se, then it is covered by means of a coating applied by the coating unit 12 or applied to the workpiece coating.
- the coating unit 12 may, for example, apply a transparent varnish.
- the coding unit 20 comprises a magnetic head. After the ink applied by the print head 10 is at least partially cured, or according to a variant abschni tionally in the flowable state be indet, the particles can be aligned by the coding unit 20 and thus ions for permanent storage of Informa provided on the workpiece.
- the coding unit 20 may be arranged downstream of a further curing unit 30 in the direction of passage. With this, the orientations of the particles introduced into the ink by the coding unit 20 are set and, moreover, the ink and the further coating applied by the coating unit 12 are completely cured, so that the workpiece W can be subsequently removed from the apparatus.
- Processing means such as the print head 10 are moved, the present invention is not limited thereto. Alternatively, it is possible to move one or more processing devices, such as the printhead 10, relative to a workpiece.
- the print head 10, the curing unit 11 and the coating unit 12 summarized in an aggregate.
- Coating unit 12 the coding unit 20 and the further curing unit 30 to be provided in an aggregate.
- Such an aggregate can be loaded into an interface of a CNC processing machine, for example a HSK cut parts.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Verfahren zum Beschichten und Kennzeichnen von Werkstücken Method for coating and marking workpieces
Technisches Gebiet Technical area
Die vorliegende Erfindung betrifft ein Verfahren zum Beschichten und Kennzeichnen von Werkstücken, die bevorzugt zumindest teilweise aus Holz , Holzwerkstoffen oder dergleichen bestehen . The present invention relates to a method for coating and marking workpieces, which are preferably at least partially made of wood, wood-based materials or the like.
Stand der Technik State of the art
Im Stand der Technik sind bereits Verfahren zum Kennzeichnen von Werkstücken bekannt . Beispielsweise werden Werkstücke mit einem Barcode bedruckt oder ein entsprechendes Barcode-Etikett wird auf ein Werkstück aufgebracht . Ferner sind sogenannte RFID-Chips bekannt . In the prior art, methods for marking workpieces are already known. For example, workpieces are printed with a barcode or a corresponding barcode label is applied to a workpiece. Furthermore, so-called RFID chips are known.
Allerdings haben die bekannten Maßnahmen den Nachteil , dass diese sichtbar sind, und zur Kennzeichnung eines bestimmten Werkstücks bzw. bestimmter Werkstückteile an diesem/diesen optisch wahrnehmbar verbleiben müssen, um eine Kennzeichnung zu gewährleisten . However, the known measures have the disadvantage that they are visible, and must remain visually perceptible for the identification of a particular workpiece or certain workpiece parts on this / this to ensure labeling.
Wird ein Werkstück, welches bspw . Teil eines Möbelstücks ist , an einen Verbraucher verkauft , so wird dieser eine permanente Kennzeichnung der Werkstücke als nicht akzeptabel empfinden bzw. eine lösbar am Werkstück angebrachte Kennzeichnung entfernen. Letzteres führt dazu, dass die mittels der Kennzeichnung bereitgehaltenen Informationen zu einem bestimmten Werkstück verloren gehen . Dies erweist sich beispielsweise als nachteilig , wenn das betroffene Werkstück nachbestellt werden seil . If a workpiece, which, for example. Part of a piece of furniture is sold to a consumer, so this will perceive a permanent marking of the workpieces as unacceptable or remove a releasably attached to the workpiece marking. The latter leads to the fact that the information provided by means of the marking becomes a lost certain workpiece. This proves to be disadvantageous, for example, when the affected workpiece is reordered rope.
Darüber hinaus können konventionelle Kennzeichnungsverfahren bei bestimmten Oberflächen zu Qualitätsproblemen führen. In addition, conventional marking techniques can cause quality problems on certain surfaces.
Gegenstand der Erfindung Subject of the invention
Die vorliegende Erfindung zielt darauf ab, ein Verfahren zum Beschichten und Kennzeichnen von Werkstücken bereitzustellen, mit dem die zuvor genannten Probleme behoben werden . The present invention aims to provide a method of coating and marking workpieces which overcomes the aforementioned problems.
Anspruch 1 stellt zur Lösung ein Verfahren mit den Merkmalen des unabhängigen Anspruchs 1 bereit . Weitere bevorzugte Ausführungsformen sind in den abhängigen Ansprüchen aufgeführt . Claim 1 provides as a solution a method having the features of independent claim 1. Further preferred embodiments are listed in the dependent claims.
Dabei urafasst das erfindungsgemäße Verfahren die nachfolgend aufgeführten Schritte : Herbeiführen einer Relativbewegung zwischen einem Werkstück und einem Druckkopf , insbesondere einem Inkj et -Druckkopf oder einem Laserdruckkopf , Bedrucken zumindest eines Abschnitts des Werkstücks mit einer aushärtbaren Flüssigkeit , bevorzugt mit einer Tinte, die im ausgehärteten Zustand eine auslesbare Information enthält oder aufnehmen kann, wobei die aushärtbare Flüssigkeit Farbpartikel enthält , die nach Aushärten der Flüssigkeit eine sichtbare Oberfläche ausbilden, und/oder eine weitere Beschichtung auf die zumindest weitgehend ausgehärtete Flüssigkeit aufgebracht wird . In this case, the method according to the invention comprises the following steps: bringing about a relative movement between a workpiece and a print head, in particular an inkjet print head or a laser print head, printing on at least one section of the workpiece with a curable liquid, preferably with an ink that has cured contains or can absorb readable information, wherein the curable liquid contains color particles, which form a visible surface after curing of the liquid, and / or a further coating is applied to the at least substantially cured liquid.
Das erfindungsgemäße Verfahren hat den Vorteil, dass die mit der aushärtbaren Flüssigkeit am Werkstück zur Verfügung stellbare Information zum einen fest mit dem Werkstück verknüpft bleibt , und zum anderen der Kennzeichnungsbereich optisch nicht wahrnehmbar ist . Somit wi d eine dauerhafte Kennzeichnung für zum Beispiel die Nachfertigung von defekten Werkstücken gewährleistet . The method according to the invention has the advantage that the information which can be provided with the curable liquid on the workpiece remains, on the one hand, permanently linked to the workpiece, and, on the other hand, that the marking region is optically imperceptible. Thus, a permanent Labeling for example, the reproduction of defective workpieces guaranteed.
Die aushärtbare Flüssigkeit kann im ausgehärteten Zustand eine strukturierte Oberfläche bzw. dreidimensionale Struktur bereitstellen . Die weitere Beschichtung kann zur Erhöhung der Abriebfestigkeit bzw. generell zum Schutz der ausgehärteten Flüssigkeit eingesetzt werden . The curable liquid can provide a structured surface or three-dimensional structure in the cured state. The further coating can be used to increase the abrasion resistance or generally to protect the cured liquid.
Dabei ist es bevorzugt, dass die auslesbare Information reversibel oder irreversibel ist . Somit können Informationen entweder modifiziert oder dauerhaft mit dem gekennzeichneten Werkstück verknüpft werden . It is preferred that the readable information is reversible or irreversible. Thus, information can either be modified or permanently linked to the identified workpiece.
Gemäß einer Ausführungsform enthält die ausgehärtete Flüssigkeit orientierbare Partikel , wobei die Partikel zumindest teilweise magnet isiert oder magnetisierbar , bevorzugt ferromagnetisch sind . According to one embodiment, the hardened liquid contains orientable particles, wherein the particles are at least partially magnetized or magnetizable, preferably ferromagnetic.
Ferner kann die ausgehärtete Flüssigkeit ein fluoreszierendes Material aufweisen. Dieses kann somit lediglich unter bestimmten Umgebungsbedingungen ausgelesen werden . Im üblichen Verwendungsbereich eines Werkstücks , welches insbesondere ein Werkstück aus dem Bereich der Möbelindustrie ist , ist die fluoreszierende Flüssigkeit optisch nicht wahrnehmbar. Beispielsweise kann die ein fluoreszierendes Material aufweisende , aushärtbare Flüssigkeit mi einer Schutzschicht , beispielsweise einem Lack , beschichtet werden. Ferner ka n die mittels des fluoreszierenden Materials bereitgestellte, auslesbare Information mit einer optischen Leseeinheit ausgelesen wird. Furthermore, the cured liquid may comprise a fluorescent material. This can thus be read only under certain environmental conditions. In the usual field of use of a workpiece, which is in particular a workpiece from the field of the furniture industry, the fluorescent liquid is optically imperceptible. For example, the curable liquid comprising a fluorescent material may be coated with a protective layer, for example a lacquer. Further, the readable information provided by the fluorescent material can be read out with an optical reading unit.
Gemäß einer bevorzugten Ausführungs orm ist die auslesbare Information ein Barcode . Wird der Barcode beispielsweise aus einem fluoreszierenden Material ausgebildet, ist dieser im üblichen Verwendungsbereich eines Werkstücks nicht wahrnehmbar . Für den Fall , dass die ausgehärtete Flüssigkeit beispielsweise orien ierbare Partikel aufweist, wobei die Partikel zumindest teilweise magnetisiert oder magnetisierbar , bevorzugt ferromagnetisch, sind, können Bereiche mit den Partikeln ggf . unterschiedlich beabstandet zueinander bzw. in einem bestimmten Mus er verteilt und/oder dimensioniert vorgesehen sein. According to a preferred embodiment orm the readable information is a barcode. If the bar code is formed, for example, from a fluorescent material, it is imperceptible in the usual field of use of a workpiece. In the event that the hardened liquid For example, orien ierbare particles, wherein the particles are at least partially magnetized or magnetizable, preferably ferromagnetic, areas with the particles if necessary. differently spaced to each other or in a certain Mus he distributed and / or dimensioned to be provided.
Bevorzugt wird nach dem Aushärten der aushärtbaren Flüssigkeit ein formstabiles Beschichtungsmaterial , insbesondere ein s reifenförmiges Kantenband, als weitere Beschichtung auf diese aufgebracht . Somit wird die aushärtbare Flüssigkeit überdeckt und ist für einen Verbraucher nicht mehr wahrnehmbar . Preferably, after curing of the curable liquid, a dimensionally stable coating material, in particular a sipe-shaped edge band, is applied to this as a further coating. Thus, the curable liquid is covered and is no longer perceptible to a consumer.
Gemäß einer Ausführungsform wird im Bereich der ausgehärteten Flüssigkeit eine pastöse Masse zum Ausbilden einer dreidimen ionalen Struktur aufgebracht . Die pastöse Masse kann neben Bereitstellen einer dreidimensionalen Struktur am Werkstück auch die ausgehärtete Flüssigkeit überdecken. Diese pastöse Masse kann mittels eines Druckkopfs au gebracht werden . According to one embodiment, in the area of the hardened liquid, a pasty mass is applied to form a three-dimensional structure. In addition to providing a three-dimensional structure on the workpiece, the pasty mass can also cover the hardened liquid. This pasty mass can be brought by means of a print head au.
Alternativ oder zusätzlich ist es denkbar, nach dem Aushärten der aushärtbaren Flüssigkeit eine weitere aushärtbare Flüssigkeit , insbesondere eine Tinte , auf diese aufzubringen . Alternatively or additionally, it is conceivable, after hardening of the curable liquid, to apply a further curable liquid, in particular an ink, to the latter.
Gemäß einer Ausführungsform wird die auslesbare Information durch elektrische und/oder magnetische und/oder elektromagnetische Felder ausgelesen . Somit kann das Auslesen der Information kontaktlos erfolgen. Alternativ oder zusätzlich ist eine op ische Leseeinheit möglich, insbesondere im Falle einer aushärtbaren Flüssigkeit , die ein fluoreszierendes Material aufweist. According to one embodiment, the readable information is read out by electrical and / or magnetic and / or electromagnetic fields. Thus, the readout of the information can be made contactless. Alternatively or additionally, an optical reading unit is possible, in particular in the case of a curable liquid which has a fluorescent material.
Gemäß einer weiteren Ausführungsform enthält die auslesbare Information Daten zum gekennzeichneten Werkstück , insbesondere der Dimension, zur Werkstücknummer , zum Hersteller und/oder zum Herstellungsdatum und/oder der Materialart und/oder Materialeigenschaft. Die Art und der Umfang der Information kann somit den konkreten Anforderungen angepass we den . According to a further embodiment, the readable information contains data for the marked workpiece, in particular the dimension, for the workpiece number, for Manufacturer and / or date and / or material type and / or material property. The nature and extent of the information can thus be adapted to the specific requirements.
Insbesondere hande1t es sich beim genannten Werkstück um ein Werkstückstück aus einem Holzwerkstoff , einIn particular, the said workpiece is a workpiece of a wood material
Massivholzwerkstück oder ein Holzwerkstück, ein Werkstück aus einem Verbundmaterial , wie einer Spanplatte , oder einem Schichtmaterial . Ferner sind Werkstücke denkbar, die abschnittsweise Kunststoffmaterial auf eisen, oder mineralisch gebundene Werkstoffe wie eine sogenannte Corian®- Platte . Derartige Werkstücke kommen insbesondere in der Möbel- oder Bauelementeindustrie zum Einsatz . Solid wood workpiece or a wood workpiece, a workpiece made of a composite material, such as a chipboard, or a layer material. Furthermore, workpieces are conceivable, the plastic material in sections on iron, or mineral bonded materials such as a so-called Corian ® - plate. Such workpieces are used in particular in the furniture or component industry.
Rein beispielhaft kann es sich beim genannten Werkstück um eine Arbeitsplatte , insbesondere eine Küchenarbeitsplatte , handeln . Eine solche Küchenarbeitsplatte kann als weitere Beschichtung abschnittsweise mit einer Teflontinte versehen werden, um in einem Bereich, i dem später Kochfelder in die Küchenarbeitsplatte eingebracht werden, widerstandsfähiger gegen Wärmeeinwirkung zu sein . Darüber hinaus kann in bestimmten Bereichen des Werkstücks eine verstärkt feuchtigkeitsabweisende Schicht vorgesehen werden . Alternativ und zusätzlich können „ schmutzabweisende" Bestandteile zum Schutz des Werkstücks beigemischt sein. Purely by way of example, the said workpiece may be a worktop, in particular a kitchen worktop. Such a kitchen countertop can be provided as a further coating in sections with a teflon ink in order to be more resistant to heat in a region in which cooking surfaces are later introduced into the kitchen worktop. In addition, an enhanced moisture-repellent layer may be provided in certain areas of the workpiece. Alternatively and additionally, "dirt-repellent" components can be added to protect the workpiece.
Gemäß einer weiteren Ausführungsform der vorliegenden Erfindung wi d die aushärtbare Flüssigkeit , die im ausgehärteten Zustand eine auslesbare Information enthält oder aufnehmen kann, auf einer ebenen Seite des Werkstücks oder in eine im Werkstück vorgesehene Ausnehmung, insbesondere Nut oder Bohrung , auf - bzw. eingebracht . According to a further embodiment of the present invention, the curable liquid, which in the cured state contains or can receive readable information, is introduced on a flat side of the workpiece or into a recess provided in the workpiece, in particular a groove or bore.
Gemäß einer weiteren Variante wird vor dem vollständigen Aushärten der aushärtbaren Flüssigkeit eine Struktur i diese eingeprägt . Somit kann die ausgehärtete Flüssigkeit eine dreidimensionale Struktur bereitstellen, auf der mittels der weiteren Beschichtung eine weitere Oberflächenschicht aufgebracht wird . According to a further variant, a structure i is embossed before complete curing of the curable liquid. Thus, the hardened liquid can Provide three-dimensional structure on which by means of the further coating, a further surface layer is applied.
Bevorzugt wird das Herbeiführen einer Relativbewegung zwischen dem Werkstück und dem Druckkopf mittels einer Fördereinrichtung durchgeführt, insbesondere eines Band- oder Kettenförderers . The bringing about of a relative movement between the workpiece and the print head is preferably carried out by means of a conveying device, in particular a belt or chain conveyor.
Alternativ ist möglich, den Druckkopf entlang einer zu beschichtenden Seite des Werkstücks zu f hren . Dabei kann das Werkstück mittels einer Halteeinrichtung , beispielsweise Saugspannern oder Klemmeinrichtungen, gehalten werden . Alternatively, it is possible to guide the print head along a side of the workpiece to be coated. In this case, the workpiece can be held by means of a holding device, for example, suction clamps or clamping devices.
Kurze Beschreibung der Zeichnung Short description of the drawing
Fig. 1 ist eine schematische Draufsicht einer Vorrichtung zur Durchführung des Verfahrens zur Beschichtung und Kennzeichnung von Werkstücken Fig. 1 is a schematic plan view of an apparatus for carrying out the method for coating and marking workpieces
Detaillierte Beschreibung der bevorzugten Ausf hrungsform Detailed Description of the Preferred Embodiment
Nachfolgend wird anhand der beigefügten Figur eine bevorzugte Ausführungs orm der vorliegenden Erfindung im Detail beschrieben. Weitere in diesem Zusammenhang stehende Modi ikationen bestimmter Merkmale können j eweils einzeln miteinander kombiniert werden, um neue Ausführungsformen auszubilde . Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying figure. Further related modifications of certain features may in each case be combined individually to form new embodiments.
Die in Fig . 1 in eine Draufsicht dargestellte Vorrichtung umfasst ein Fördermittel 1, welches im vorliegenden Fall ein umlaufender Riemen ist . Zusätzlich kann ein weiterer umlaufender Riemen vorgesehen sein, der die Werkstücke W gegen den in Fig . 1 dargestellten umlaufenden Riemen 1 drückt ( sogenannter Oberdruck) . Auf diese Weise werden die auf den Förderriemen 1 aufgelegten Werkstücke in Durchlaufrichtung (Pfeil in Fig. 1 ) gefördert und an mehreren Bearbeitungseinrichtungen vorbeige ührt . The in Fig. 1 device shown in a plan view comprises a conveying means 1, which in the present case is a circulating belt. In addition, a further circulating belt can be provided which supports the workpieces W against the one shown in FIG. 1 illustrated circumferential belt 1 presses (so-called top pressure). In this way, the laid on the conveyor belt 1 workpieces are conveyed in the direction of passage (arrow in Fig. 1) and passes on several processing facilities vorbeige.
Insbesondere umfasst die Vorrichtung einen Druckkopf 10 , der seitlich des Förderriemens 1 vorgesehen ist , wobei der Druckkopf 10 eingerichtet ist , zumindest eine Schmalseite des plattenförmigen Werkstücks W zu bedrucken . Der Druckkopf 10 ist im vorliegenden Ausführungsbeispiel in einer horizontalen Richtung ausgerichtet . Zusätzlich ist es möglich, dass der Druckkopf 10 durch eine Schwenkachse drehbar gelagert ist . In particular, the device comprises a print head 10, which is provided laterally of the conveyor belt 1, wherein the print head 10 is adapted to print at least one narrow side of the plate-shaped workpiece W. The print head 10 is aligned in the present embodiment in a horizontal direction. In addition, it is possible that the print head 10 is rotatably supported by a pivot axis.
Die vom Druckkopf 10 , der insbesondere ein Inkj et -Druckkopf oder ein Laserdruckkopf ist , aufgebrachte Tinte enthält gemäß einer Ausführungsform der vorliegenden Erfindung magnetische bzw. magnetisierbare Partikel . The ink applied by the print head 10, which is in particular an inkjet print head or a laser print head, contains magnetic or magnetizable particles according to an embodiment of the present invention.
Die Partikel können gemäß einer ersten Variante der vorliegenden Erfindung in Form einer Strichmatrix auf das j eweilige Werkstück W aufgebracht werden. Alternativ ist es möglich, dass die durch den Druckkopf 10 am Werkstück aufgesprühte Tinte magnetische Partikel oder Par ikel mit fluoreszierenden Eigenschaften enthält , die in die eigentliche Tinte integriert sind . According to a first variant of the present invention, the particles can be applied to the respective workpiece W in the form of a line matrix. Alternatively, it is possible that the ink sprayed on the workpiece by the print head 10 contains magnetic particles or particles having fluorescent properties integrated with the actual ink.
Nachfolgend zum Druckkopf 10 befindet sich in Durchlaufrichtung der Werkstücke W eine Aushärteeinheit 11 zum abschnittsweisen Aushärten der mit dem Druckkopf 10 aufgebrachten Tinte . Beispielsweise kann es sich bei der Aushärteeinheit 11 um eine Heißluftquelle handeln, mit der zumindest die vom Werkstück W weg weisende Oberfläche der aufgebrachten Tinte ausgehärtet wird . Subsequent to the print head 10 is in the direction of passage of the workpieces W a curing unit 11 for partially curing the applied with the print head 10 ink. For example, the curing unit 11 may be a hot air source with which at least the surface of the applied ink facing away from the workpiece W is cured.
Der Aushärteeinheit 11 in Durchlaufrichtung nachgeordnet befindet sich eine Beschichtungseinheit 12 , die in der vorliegenden Ausführungsform ebenfalls ein Druckkopf ist . Somit wird die durch den Druckkopf 10 aufgebrachte Tinte mit einer weiteren Beschichtung versehen, insbesondere einer Tinte oder einem Lack . Die Beschichtungseinheit 12 kann mit einer Schwenkachse versehen sein, die es ermöglicht, Werkstücke „über Eck" zu bedrucken . Durch ein Bedrucken „über Eck" können Eck- und Fugenbereich mittels der Tinte bzw. Beschichtung überdeckt werden . The curing unit 11 downstream in the direction of passage is a coating unit 12, which is also a print head in the present embodiment. Thus, the ink applied by the print head 10 is provided with a further coating, in particular an ink or a lacquer. The coating unit 12 can be provided with a swivel axis which makes it possible to print workpieces "over the corner." By printing "over the corner", the corner and joint area can be covered by means of the ink or coating.
Alternativ ist es möglich, mittels der Beschichtungseinheit 12 ein formstabiles Beschichtungsmaterial , wie ein Kantenband, zuzuführen und an der Werkstückseite aufzubringen, die im vorangegangenen Schritt mit dem Druckkopf 10 bedruckt wurde . Alternatively, it is possible to supply by means of the coating unit 12, a dimensionally stable coating material, such as an edge band, and applied to the workpiece side, which was printed with the printhead 10 in the previous step.
Wird durch den Druckkopf 10 ein flächiger Kennzeichnungsbereich aufgebracht , der an sich optisch wahrnehmbar ist , so wird dieser mittels einer durch die Beschichtungseinheit 12 zugeführten oder am Werkstück aufgebrachten Beschichtung überdeckt . If a flat marking area is applied by the print head 10, which is visually perceptible per se, then it is covered by means of a coating applied by the coating unit 12 or applied to the workpiece coating.
Handelt es sich bei der durch den Druckkopf 10 aufgebrachten Tinte um ein Beschichtungsmaterial , das bereits selbst derartige Farbpartikel enthält, die zum Ausbilden einer sichtbaren Oberfläche verwendet werden, so kann durch die Beschichtungseinheit 12 bspw. ein transparenter Lack aufgetragen werden . If the ink applied by the print head 10 is a coating material which itself already contains such color particles which are used to form a visible surface, the coating unit 12 may, for example, apply a transparent varnish.
Nachdem das Werkstück gekennzeichnet wurde , wird dieses im Durchlauf zu einer Kodiereinhei 20 geführt . Die Kodiereinheit 20 umfasst gemäß einer Ausführungsform einen Magnetkopf . Nachdem die durch den Druckkopf 10 aufgetragene Tinte zumindest teilweise ausgehärtet ist , bzw. sich gemäß einer Variante abschni tsweise im fließfähigen Zustand be indet , können die Partikel durch die Kodiereinheit 20 ausgerichtet werden und somit zur dauerhaften Speicherung von Informa ionen am Werkstück vorgesehen werden . Der Kodiereinheit 20 kann eine weitere Aushärteeinheit 30 in Durchlaufrichtung nachgeordnet sein. Mit dieser werden die durch die Kodiereinheit 20 eingebrachten Ausrichtungen der Partikel in der Tinte festgelegt und darüber hinaus die Tinte sowie die durch die Beschichtungseinheit 12 aufgebrachte weitere Beschichtung vollständig ausgehärtet , sodass das Werkstück W nachfolgend von der Vorrichtung entnommen werden kann. After the workpiece has been marked, this is passed in a pass to a Kodiereinhei 20. The coding unit 20 according to one embodiment comprises a magnetic head. After the ink applied by the print head 10 is at least partially cured, or according to a variant abschni tionally in the flowable state be indet, the particles can be aligned by the coding unit 20 and thus ions for permanent storage of Informa provided on the workpiece. The coding unit 20 may be arranged downstream of a further curing unit 30 in the direction of passage. With this, the orientations of the particles introduced into the ink by the coding unit 20 are set and, moreover, the ink and the further coating applied by the coating unit 12 are completely cured, so that the workpiece W can be subsequently removed from the apparatus.
Obwohl die vorliegende Erfindung mit Verweis a f Figur 1 anhand einer Vorrichtung beschrieben wurde , bei der Werkstücke relativ zu den genanntenAlthough the present invention has been described with reference to FIG. 1 by means of a device in which workpieces are relative to those mentioned
Bearbeitungseinrichtungen, wie dem Druckkopf 10 , bewegt werden, ist die vorliegende Erfindung nicht hierauf beschränkt . Alternativ ist es möglich, eine oder mehrere Bearbeitungseinrichtungen, wie den Druckkopf 10, relativ zu einem Werkstück zu bewegen. Processing means, such as the print head 10, are moved, the present invention is not limited thereto. Alternatively, it is possible to move one or more processing devices, such as the printhead 10, relative to a workpiece.
Dabei ist es besonders bevorzugt , den Druckkopf 10, die Aushärteeinheit 11 und die Beschichtungseinheit 12 in einem Aggregat zusammenzufassen . Alternativ ist es möglich, den Druckkopf 10 , die Aushärteeinhei 11 , dieIt is particularly preferred, the print head 10, the curing unit 11 and the coating unit 12 summarized in an aggregate. Alternatively, it is possible for the print head 10, the curing unit 11, the
Beschichtungseinheit 12 , die Kodiereinheit 20 und die weitere Aushärteeinheit 30 in einem Aggregat vorzusehe . Coating unit 12, the coding unit 20 and the further curing unit 30 to be provided in an aggregate.
Ein derartiges Aggregat kann in eine Schnittstelle einer CNC- Bearbeitungsmaschine , beispielsweise eine HSK-Schnittsteile , eingewechselt werden. Such an aggregate can be loaded into an interface of a CNC processing machine, for example a HSK cut parts.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015212409.6A DE102015212409A1 (en) | 2015-07-02 | 2015-07-02 | Method for coating and marking workpieces |
| PCT/EP2016/065520 WO2017001667A1 (en) | 2015-07-02 | 2016-07-01 | Method for coating and identifying workpieces |
Publications (1)
| Publication Number | Publication Date |
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| EP3317117A1 true EP3317117A1 (en) | 2018-05-09 |
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| EP16739050.9A Withdrawn EP3317117A1 (en) | 2015-07-02 | 2016-07-01 | Method for coating and identifying workpieces |
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| US (1) | US10723163B2 (en) |
| EP (1) | EP3317117A1 (en) |
| CN (2) | CN116039267A (en) |
| DE (1) | DE102015212409A1 (en) |
| WO (1) | WO2017001667A1 (en) |
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| CN109050004A (en) * | 2018-08-14 | 2018-12-21 | 卓弢机器人盐城有限公司 | A kind of automation label plotting equipment and its working method |
| DE102018121767A1 (en) * | 2018-09-06 | 2020-03-12 | Kommanditgesellschaft Synoptrix Lichttechnik Gmbh & Co. | Manufacturing process of a decorative element and use of the decorative element |
| US11383276B2 (en) * | 2019-09-13 | 2022-07-12 | Rdbj, Llc | Lumber use designation system and method |
| DE102019133335A1 (en) * | 2019-12-06 | 2021-06-10 | Homag Gmbh | Apparatus and a method for coating a surface of a workpiece |
| DE102021103564A1 (en) * | 2021-02-16 | 2022-08-18 | Homag Gmbh | Method and device for coating a surface |
| DE102022121248A1 (en) | 2022-08-23 | 2024-02-29 | Homag Gmbh | Method for marking workpieces and printing device |
| DE102023127527A1 (en) | 2023-08-10 | 2025-02-13 | Tobias Hannig | Process for recycling decorative panels |
| EP4512628A1 (en) * | 2023-08-21 | 2025-02-26 | Ritter GmbH | Plastic product and method for applying an imprint to a plastic product |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN116039267A (en) | 2023-05-02 |
| US20180194155A1 (en) | 2018-07-12 |
| DE102015212409A1 (en) | 2017-01-05 |
| CN107709035A (en) | 2018-02-16 |
| WO2017001667A1 (en) | 2017-01-05 |
| US10723163B2 (en) | 2020-07-28 |
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