EP4387844A1 - Vorrichtung und verfahren zum bemustern eines werkstücks - Google Patents
Vorrichtung und verfahren zum bemustern eines werkstücksInfo
- Publication number
- EP4387844A1 EP4387844A1 EP22768639.1A EP22768639A EP4387844A1 EP 4387844 A1 EP4387844 A1 EP 4387844A1 EP 22768639 A EP22768639 A EP 22768639A EP 4387844 A1 EP4387844 A1 EP 4387844A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- printing
- unit
- workpiece
- mixing
- additives
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/002—Heating or cooling of ink or ink rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/02—Ducts, containers, supply or metering devices
- B41F31/03—Ink agitators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/02—Ducts, containers, supply or metering devices
- B41F31/08—Ducts, containers, supply or metering devices with ink ejecting means, e.g. pumps, nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0036—Devices for scanning or checking the printed matter for quality control
- B41F33/0045—Devices for scanning or checking the printed matter for quality control for automatically regulating the ink supply
-
- 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
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2201/00—Polymeric substrate or laminate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2203/00—Other substrates
- B05D2203/20—Wood or similar material
-
- 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
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/02—Staining or dyeing wood; Bleaching wood
Definitions
- the invention relates to a device and a method for patterning a workpiece, which preferably consists at least partially of wood, wooden materials, plastic or the like.
- workpieces are often made of wood or wood-based materials, such as chipboard, which are coated and patterned on their surface.
- the coating itself can already be sampled, so that a separate sampling process can be dispensed with.
- known printing units require a considerable amount of space.
- known printing units are usually more complex for application Pattern optimized, but not for additional functions that are required in the furniture and construction element industry, such as the variable setting of the physical and geometric properties of the print layer.
- the known printing units are not ideal for printing solid colors.
- the object of the invention is to provide a device and a method for patterning a workpiece, which preferably consists at least partially of wood, wood-based materials, plastic or the like, through which a variety of geometric and physical properties of the printed layer can be achieved with a small space requirement and improved printing of solid colors can also be achieved.
- the device according to the invention initially has a feed unit for feeding at least two printing components to a printing unit, and upstream of the printing unit a mixing unit for mixing the components fed by means of the feeding unit and for delivering the mixture to the printing unit.
- a feed unit for feeding at least two printing components to a printing unit
- a mixing unit for mixing the components fed by means of the feeding unit and for delivering the mixture to the printing unit.
- the device according to the invention is particularly suitable for rapid and economical printing of solid colors, since the desired solid color can already be produced upstream of the printing unit.
- the device according to the invention opens up completely new and diverse possibilities for the sampling of workpieces in the furniture and component industry, which are preferably at least partially made of wood, wood materials,
- Plastic f or the like exist.
- the supply unit has a plurality of pumps which are connected to at least one printing component container.
- the pressure component containers can contain and provide a wide variety of components.
- at least one pressure component container has a parent liquid.
- the mother liquid can also have neutral or even cleaning properties, so that it can be used to rinse or even clean certain areas of the device if necessary.
- at least one printing component container contains dyes, such as color pigments in particular.
- any colored printing material can be produced, for example in combination with a parent liquid, resulting in an extremely wide range of possible printing colors. It is particularly advantageous that setting a desired color of the printing material upstream of the printing unit also results in a particularly high-quality, but also rapid and cost-effective single-color printing.
- At least one pressure component container has at least one additive, the additive preferably being selected from physically changeable additives, matting additives, foamable additives, structure-forming additives and fluores decorative additives. Thanks to these additives, it is possible to give the later printed layer on the workpiece a wide variety of physical and geometric properties. For example, structured surfaces, luminous surfaces, reflective surfaces, matt surfaces, particularly thick surfaces, particularly impact-resistant surfaces and many other surfaces can be created. At the same time, this effect is achieved in a flexible and variable manner in the invention, since the desired properties can be set individually for the respective workpiece depending on the addition of the additives.
- the mixing unit can be configured in different ways. A particularly rapid, effective and trouble-free mixing of the printing components results, however, if the mixing unit according to a further development of the invention has at least one movable mixing element, wherein at least one drive for driving the movable mixing element is preferably provided.
- a further increased variety of achievable properties of the later printed layer results when the mixing unit is set up according to a development of the invention to temper the supplied components, in particular to heat them.
- the mixing unit is set up according to a development of the invention to temper the supplied components, in particular to heat them.
- the temperature of the mixing unit not only can the mixing of the individual components be optimized, but certain substances and properties of the printing component can also be activated or their activation behavior can be time-controlled and optimized.
- the mixing unit can also be set up according to a further development of the invention so that the supplied components are only dispensed after a dwell time.
- the mixing unit can also serve as an intermediate buffer in which the components are enabled to achieve optimal mixing over time and possibly also under the influence of temperature control and/or to develop additional properties, such as a special viscosity or strength or other physical properties Characteristics .
- At least one printing unit has a secondary circuit for circulating and possibly buffering a supplied printing material mixture.
- the operation of the mixing unit and the printing unit can be at least partially decoupled from one another, which is advantageous, for example, in the event of interruptions in the printing operation or also during dwell times on the part of the mixing unit and minimizes the waste of printing material.
- a plurality of printing units are provided for, in particular, sequential printing, with a plurality of printing units preferably being connected to a mixing unit.
- the advantages mentioned above can be achieved particularly effectively with a method for patterning a workpiece according to claim 10 .
- the advantages of the invention are particularly pronounced when the surface of the workpiece to be printed consists of plastic, at least in sections. This is because the printing of plastics places particularly high demands on the printing process and the printing material used, with the invention also enabling particularly high-quality and varied printing results here.
- the printing unit and/or the mixing unit are cleaned by supplying a pressure component, in particular a parent liquid, by means of the supply unit.
- a pressure component in particular a parent liquid
- Fig. 1 schematically shows a plan view of a device for patterning a workpiece according to an embodiment of the invention.
- FIG. 1 A device 1 for sampling a workpiece 2 is shown in FIG. 1 shown schematically in a plan view.
- the device 1 is used for sampling workpieces 2, as they are used in the furniture and component industry, such as furniture fronts, body parts, door leaves, etc. These usually consist of wood or wooden materials and are often coated in the area of their surface 2' with a cover layer, which can consist, for example, of plastic or various composite materials, but also of paper or veneer, in FIG. 1 shows an example of a plate-shaped workpiece 2 which is to be printed in the area of its narrow surface 2'. A so-called edge can be glued to this narrow surface, for example.
- the device according to the invention can also be provided for patterning a wide area or any other surface 2' of the workpiece.
- the device 1 in the present embodiment comprises a conveyor device 4 in the form of a continuous device, which can have, for example, a conveyor belt, a conveyor chain or other suitable conveyor elements.
- a conveyor device 4 in the form of a continuous device, which can have, for example, a conveyor belt, a conveyor chain or other suitable conveyor elements.
- Conveyor concepts can be used, for example so-called stationary machines, in which the workpiece 2 is stationary and components of the device are moved in relation to the workpiece 2; mixed forms of both concepts are also possible within the scope of the invention.
- the device 1 For patterning the surface 2' of the workpiece, the device 1 has a printing unit 10, which in the present embodiment is designed as a drop-on-demand printing unit.
- a printing unit 10 which in the present embodiment is designed as a drop-on-demand printing unit.
- FIG. 1 illustrates ink droplets projecting onto the surface of the workpiece 2 to be patterned.
- other, optionally continuous, printing methods are also possible.
- the device 1 Upstream of the printing unit 10 , the device 1 initially comprises a feed unit 20 which, in the present embodiment, has a plurality of pressure component containers 24 and 26 . These pressure component containers are connected via respective pumps 22 to a mixing unit 30 whose outlet is in turn connected to the pressure unit 10 .
- the pressure component container 24 has a source liquid, which can be, for example, a water-based liquid or a liquid designed for later UV curing, which is suitable for holding dyes or additives.
- a water-based stock liquid can also contain solvents, for example.
- a stock liquid designed for subsequent UV curing may contain an acrylate monomer mixture.
- the stock liquid has properties that are as neutral as possible and is preferably free of dyes or pigments, so that it alone is not suitable for producing permanent print surfaces. So she can also be used for rinsing or cleaning, for example, the mixing unit 30 or the printing unit 10 .
- the printing component containers 26 contain different dyes, such as color pigments or additives, as required.
- these are physically changeable additives (e.g. polymers), matting additives (e.g. lime), foamable additives (e.g. polyurethanes), structure-forming additives (e.g. granules) or fluorescent additives.
- the mixing unit has, for example, a snail-shaped mixing element 32 which is provided in a hollow space within the mixing unit and can be rotated about a longitudinal axis.
- the mixing element 32 in the present embodiment is connected to a rotary drive 34 and can thus be driven in rotation about its longitudinal axis. Thanks to the snail shape of the mixing element, it can be used on the one hand for mixing, but on the other hand also for conveying and discharging the pressure components supplied. As in Fig. 1 can be seen, these are then delivered to the printing unit 10 in order to be used from there for printing the workpiece 2 .
- the mixing unit 30 in the present embodiment has a heating unit, by means of which the supplied components can be heated. Alternatively or additionally, a cooling unit would also be conceivable. Furthermore, the mixing unit 30 can also be set up to mix the supplied components and then only deliver them to the printing unit 10 after a certain dwell time. For this purpose, on the one hand, a closure can be provided at the outlet of the mixing unit 30 or other types of mixing elements or various other measures can also be used. As in Fig. 1 can be seen, the FIG. 1 also has a secondary circuit 12 with a secondary pump 14 in the area of the printing unit 10, which is used to circulate a supplied printing material mixture and, if necessary, to buffer it.
- the secondary circuit 12 can temporarily supply the printing unit 10 with printing material if the mixing unit 30 does not supply a printing material mixture at the moment--for example due to a dwell time.
- the printing device 1 can also have a plurality of printing units 10, which are arranged sequentially along the conveyor device 4. These can all be connected to the mixing unit 30 or to at least one separate mixing unit. In any case, arranging a plurality of sequential printing units enables multi-stage and possibly also multi-layer printing of the workpiece 2 , as a result of which a wide variety of physical and optical properties of the surface can be achieved.
- the stock liquid from the pressure component container 24 and one or more colorants and/or additives from the pressure component containers 26 are first fed to the mixing unit 30 and mixed there by means of the mixing element 32 .
- the printing material mixture is then output to the printing unit 10 and used for printing the surface 2' of the workpiece.
- either continuous adjustments to the print material mixture can be made, or the printing operation can be stopped in order to flush both the mixing unit 30 and the printing unit 10 and, if possible, also to clean them.
- stock liquid is supplied from the container 24 by means of the pump and discharged into a collecting container at the pressure unit 10 .
- a new mixture can then be defined on the basis of the changed requirements and made available by means of the mixing unit 30 .
- the device can have a suitable control device.
Landscapes
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021121527.7A DE102021121527A1 (de) | 2021-08-19 | 2021-08-19 | Vorrichtung und Verfahren zum Bemustern eines Werkstücks |
| PCT/EP2022/072939 WO2023021077A1 (de) | 2021-08-19 | 2022-08-17 | Vorrichtung und verfahren zum bemustern eines werkstücks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4387844A1 true EP4387844A1 (de) | 2024-06-26 |
| EP4387844B1 EP4387844B1 (de) | 2025-07-02 |
Family
ID=83280171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22768639.1A Active EP4387844B1 (de) | 2021-08-19 | 2022-08-17 | Vorrichtung und verfahren zum bemustern eines werkstücks |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4387844B1 (de) |
| DE (1) | DE102021121527A1 (de) |
| WO (1) | WO2023021077A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018127617A1 (de) * | 2018-11-06 | 2020-05-07 | Homag Gmbh | Verfahren und Vorrichtung zum Beschichten eines Werkstücks |
| DE102023110002A1 (de) * | 2023-04-20 | 2024-10-24 | Homag Gmbh | Ausrichteinrichtung zum Ausrichten eines Werkstücks, Druckeinrichtung sowie Verfahren zum Ausrichten eines Werkstücks |
| DE102023112590A1 (de) * | 2023-05-12 | 2024-11-14 | Homag Gmbh | Vorrichtung und Verfahren zum Bemustern eines Werkstücks |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10031030B4 (de) | 2000-06-26 | 2005-08-04 | Bauer, Jörg R. | Verfahren und Vorrichtung zum Herstellen flächiger Bauteile mit vorbestimmtem Oberflächenaussehen und flächiges Bauteil, insbesondere Frontplatte eines Küchenelements |
| ES2384575T3 (es) | 2006-06-12 | 2012-07-09 | Homag Holzbearbeitungssysteme Ag | Procedimiento para decorar la superficie de piezas de trabajo |
| PL1935659T3 (pl) | 2006-12-21 | 2010-04-30 | Agfa Nv | Sposoby drukowania strumieniowego i zestaw tuszów do drukarek strumieniowych |
| DE602006013855D1 (de) | 2006-12-21 | 2010-06-02 | Agfa Graphics Nv | Tintenstrahldruckverfahren und Tintensätze |
| DE102009004877B4 (de) | 2009-01-16 | 2015-10-08 | Jörg R. Bauer | Bauteil mit einem Grundkörper und einer darauf mittels eines digitalen Beschichtungssystems aufgebrachten Schicht |
| ITBO20100146A1 (it) * | 2010-03-11 | 2011-09-12 | Biesse Spa | Metodo per la finitura di un pannello di legno o simili |
| US9279058B2 (en) * | 2013-01-11 | 2016-03-08 | Floor Iptech Ab | Digital embossing |
| DE102013000884A1 (de) | 2013-01-18 | 2014-07-24 | Venjakob Maschinenbau Gmbh & Co. Kg | Optimierung einer Vorrichtung zum Lackieren von Werkstücken |
| IT201700033389A1 (it) | 2017-03-27 | 2018-09-27 | Cementhai Ceram Co Ltd | Sistema e metodo di erogazione di una miscela fluida o smalto per la realizzazione o la stampa di manufatti dell'industria della ceramica, in particolare piastrelle ceramiche |
| JP7198622B2 (ja) | 2018-09-27 | 2023-01-04 | 理想科学工業株式会社 | インクジェット印刷装置 |
| DE102020100927A1 (de) * | 2020-01-16 | 2021-07-22 | Homag Gmbh | Druckeinrichtung zum Bedrucken einer Oberfläche sowie Verfahren zum Wechseln von Druckfarben in einer Druckeinrichtung |
-
2021
- 2021-08-19 DE DE102021121527.7A patent/DE102021121527A1/de active Pending
-
2022
- 2022-08-17 WO PCT/EP2022/072939 patent/WO2023021077A1/de not_active Ceased
- 2022-08-17 EP EP22768639.1A patent/EP4387844B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023021077A1 (de) | 2023-02-23 |
| DE102021121527A1 (de) | 2023-02-23 |
| EP4387844B1 (de) | 2025-07-02 |
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