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EP4045306B1 - Outil de presse et procédé de fabrication d'un outil de presse - Google Patents

Outil de presse et procédé de fabrication d'un outil de presse Download PDF

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Publication number
EP4045306B1
EP4045306B1 EP20792948.0A EP20792948A EP4045306B1 EP 4045306 B1 EP4045306 B1 EP 4045306B1 EP 20792948 A EP20792948 A EP 20792948A EP 4045306 B1 EP4045306 B1 EP 4045306B1
Authority
EP
European Patent Office
Prior art keywords
lacquer
plastic layer
layer
full
mineral particles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20792948.0A
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German (de)
English (en)
Other versions
EP4045306A1 (fr
Inventor
Thorsten Hagedorn
Berthold Thölen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hueck Rheinische GmbH
Original Assignee
Hueck Rheinische GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hueck Rheinische GmbH filed Critical Hueck Rheinische GmbH
Publication of EP4045306A1 publication Critical patent/EP4045306A1/fr
Application granted granted Critical
Publication of EP4045306B1 publication Critical patent/EP4045306B1/fr
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/062—Press plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/065—Press rams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
    • B30B3/005—Roll constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
    • B30B5/04—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
    • B44B5/02—Dies; Accessories
    • B44B5/026—Dies

Definitions

  • Press tools e.g. in the form of press plates, endless belts or embossing rollers, are used in the wood processing industry to produce workpieces such as furniture, laminates or panels, i.e. workpieces in general.
  • the workpieces are pressed with the pressing surface of the press tool so that the workpieces receive surfaces corresponding to the pressing surface.
  • the WO 03/016034 A1 discloses another press plate with a structured press surface.
  • the structured press surface is provided with a coating consisting of carbon with diamond-like layers and a surface hardness of over 1800 HV according to Vickers.
  • the WO 2008/120058 A1 discloses a pressing tool whose pressing surface is formed by a layer consisting of a metal matrix with mineral or ceramic particles embedded therein.
  • the WO 2017/081008 A1 discloses a pressed sheet made of polyetheretherketone, which has a structured pressed surface with different degrees of gloss.
  • the polyetheretherketone is enriched with at least 10 to 50% of a carbon fiber, a graphite powder or a heat-conducting material.
  • the US 2011/052905 A1 describes a process for making laminated articles by coating or plating the press surfaces with a fluoropolymer impregnated hard coating.
  • Typical coatings that can be used with the fluoropolymer are nickel, chromium, their combinations and alloys thereof.
  • the DE 20 2010 004448 U1 describes a tabletting punch for pressing powdered or granular substances into a tablet, with a press head with a pressing surface, wherein at least part of the pressing surface is coated with a plastic coating made of a non-elastomeric plastic matrix and a hard material particle filling embedded in the plastic matrix.
  • the EP 2 119 550 A1 describes a molding sheet containing a base material, on which at least one color layer is provided, and a surface molding layer formed on the color layer, in contact therewith and covering the entire surface, wherein the surface molding layer is a layer obtained by crosslinking and curing a curable resin composition, and wherein the surface of the surface molding layer has a convex shape and also a concave pattern.
  • EP 2 119 550 A1 discloses a pressing tool according to the preamble of claim 1.
  • the object of the invention is to provide an improved pressing tool with a pressing surface.
  • a further aspect of the invention relates to a method for producing the pressing tool according to the invention, comprising coating the basic structure with the lacquer or plastic layer with the addition of the mineral particles, e.g. in the form of a mineral powder.
  • the pressing tool comprises the basic structure made of metal, in particular steel. If the pressing surface has the structure, the basic structure is structured accordingly.
  • the structured basic structure can be produced, for example, by applying masks and etching, as is familiar to those skilled in the art.
  • a worn pressing tool according to the invention can possibly be reconditioned relatively easily, since it may be possible to relatively easily remove the worn paint or plastic layer with mineral particles embedded in it and replace it with a new paint or plastic layer with mineral particles embedded in it.
  • the plastic layer preferably comprises polyetheretherketone or consists of polyetheretherketone.
  • the image data obtained by scanning can, for example, be manually processed to obtain the image data associated with the structure of the press surface.
  • the pressing tool comprises a further lacquer or plastic layer designed as a full-surface lacquer or plastic layer.
  • the lacquer or plastic layer with the embedded mineral particles is then preferably a partial lacquer or plastic layer with the embedded mineral particles, wherein the full-surface lacquer or plastic layer is arranged between the base structure and the partial lacquer or plastic layer.
  • the full-surface lacquer or plastic layer is arranged directly on the base structure and the partial lacquer or plastic layer is arranged directly on the full-surface lacquer or plastic layer.
  • the partial lacquer or plastic layer with the mineral particles embedded therein is arranged on the full-surface lacquer or plastic layer only in predetermined areas, which are preferably assigned to the elevations or predetermined elevations of the pressing surface.
  • the partial lacquer or plastic layer and the areas of the full-surface lacquer or plastic layer that are free from the partial lacquer or plastic layer form in particular the pressing surface.
  • the production of this variant of the pressing tool preferably comprises a full-surface coating of the basic structure with the further or the full-surface lacquer or plastic layer, in particular with the addition of further mineral particles, and a partial coating of the full-surface lacquer or plastic layer with the partial lacquer or plastic layer with the addition of the mineral particles.
  • the partial coating is preferably carried out depending on the image data assigned to the structure of the pressing surface.
  • the full-surface paint or plastic layer and the partial paint and plastic layer each have different gloss levels.
  • these two gloss levels are different, so that the surface of the workpiece produced with the pressing tool also has areas with different gloss levels.
  • the different degrees of gloss of the paint or plastic layers can be achieved, for example, by hardening the paint or plastic layers, e.g. by UV irradiation, electron beam or laser hardening, or by exposing them to different temperatures.
  • further mineral particles are embedded in the further or full-surface lacquer or plastic layer.
  • the production of this variant of the pressing tool preferably comprises a full-surface coating of the basic structure with the further lacquer or plastic layer with the addition of further mineral particles.
  • the other mineral particles are in particular diamond particles, preferably industrial diamonds.
  • the minerals silicon carbide, boron nitride, boron carbide, aluminum oxide and titanium oxide can also be used as mineral particles.
  • the other mineral particles or diamond particles are in particular formed as another mineral or diamond powder.
  • the paint or plastic layer wears away over time.
  • it comprises an indicator layer which is arranged below the paint or plastic layer or below the further paint or plastic layer.
  • the indicator layer is intended to indicate wear of the paint or plastic layer arranged on the indicator layer, i.e. in particular also wear of the pressing surface.
  • the indicator layer therefore has a different optical property than the paint or plastic layer or the further paint or plastic layer. If the paint or plastic layer or the further paint or plastic layer is at least partially worn to such an extent that it is completely removed at least in some areas, then the indicator layer is visible in these areas. Due to the different optical properties, this is then particularly visible to the human eye, so that a person can relatively easily recognize when the pressing tool is too worn.
  • the production of this variant of the pressing tool preferably comprises arranging the indicator layer on the base structure, in particular coating the base structure with the indicator layer and coating the indicator layer with the lacquer or plastic layer or the further lacquer or plastic layer.
  • the indicator layer is, for example, a paint indicator layer whose optical properties differ from the optical properties of the paint or plastic layer or the further paint or plastic layer.
  • the optical properties are, for example, a color and/or fluorescence.
  • particles having optical properties are embedded in the indicator layer, so that the indicator layer has a corresponding optical property that differs from the optical property of the lacquer or plastic layer or the further lacquer or plastic layer.
  • the optical properties of the indicator layer of this variant are achieved by means of the particles embedded in it.
  • the optical properties are, for example, a color or a fluorescence.
  • the particles of the indicator layer are therefore, for example, color particles, so that the indicator layer has a corresponding color, and/or fluorescent particles so that the indicator layer has fluorescent properties.
  • the particles of the indicator layer can also be mineral particles, in particular mineral color particles or diamond color particles, preferably industrial diamond color particles.
  • the particles of the indicator layer are in particular in the micro- or nanometer range.
  • the production of this variant of the pressing tool comprises, for example, arranging the indicator layer on the base structure, in particular coating the base structure with the indicator layer, in particular with the addition of the particles, and coating the indicator layer with the lacquer or plastic layer with the addition of the mineral particles.
  • the production of this variant of the pressing tool comprises in particular an arrangement of the indicator layer on the basic structure, in particular a coating of the basic structure with the indicator layer, in particular with the addition of the particles, a full-surface coating of the indicator layer with the further lacquer or plastic layer, in particular with the addition of the further mineral particles, and a partial coating of the full-surface lacquer or plastic layer with the partial lacquer or plastic layer with the addition of the mineral particles, in particular depending on the image data assigned to the structure of the pressing surface.
  • Coating with the lacquer or plastic layer or with the further lacquer or plastic layer or with the indicator layer can be, for example, painting, printing, in particular by means of digital printing, or powder coating.
  • the pressing surface i.e. the lacquer or plastic layer or the further lacquer or plastic layer, can also be finally processed with a laser.
  • the Fig. 1 shows a perspective view of a press plate 1 with a pressing surface 2 as an example of a pressing tool.
  • FIGS. 2 and 3 each show a section of a side view of two embodiments of the press plate 1 in sectional representations.
  • the press plate 1 comprises a basic structure 10 made of metal and in the case of the present embodiments, the press surface 2 has a structure of depressions 3 and elevations 4, so that the basic structure 10 is structured according to the structure of the press surface 2.
  • the press surface 2 is assigned, for example, to a wood grain.
  • the basic structure 10 is preferably made of steel and was produced, for example, by deep etching.
  • a workpiece e.g. a material plate, for example a laminate
  • the workpiece After pressing, the workpiece has a surface structured according to the structure of the press surface 2.
  • the press plate 1 comprises a lacquer or plastic layer 11 arranged on the base structure 10, in which mineral particles 12 are embedded.
  • the lacquer or plastic layer 11 can be a partial or full-surface lacquer or plastic layer.
  • the mineral particles 12 are in particular diamond particles and have a size in the nanometer or micrometer range.
  • the sizes of the individual mineral particles 12 can be different or essentially the same.
  • the mineral particles 12 preferably have a volume fraction of at least 50% based on the volume of the paint or plastic layer 11 with mineral particles 12 embedded therein.
  • the lacquer or plastic layer 11 is a plastic layer, it preferably comprises polyetheretherketone or consists of polyetheretherketone.
  • the pressing tool 1 of the first embodiment was manufactured, for example, by coating the base structure 10 with the lacquer or plastic layer 11 with the addition of the mineral particles 12. This was done, for example, by means of painting, printing or powder coating.
  • the lacquer or plastic layer 11 can be arranged directly on the base structure 10.
  • the Fig. 2 the first embodiment shown comprises an indicator layer 13, which in the case of the present embodiment is arranged directly on the base structure 10.
  • the lacquer or plastic layer 11 is in turn arranged directly on the indicator layer 13.
  • the indicator layer 13 has a different optical property than the lacquer or plastic layer 11. If the lacquer or plastic layer 11 is at least partially worn to such an extent that it is completely removed at least in some areas, the indicator layer 13 is visible in these areas.
  • the production of the press plate 1 according to the first embodiment preferably comprises coating the base structure 10 with the indicator layer 13 and subsequently coating the indicator layer 13 with the lacquer or plastic layer 11.
  • the indicator layer 13 is a colored lacquer layer that may fluoresce.
  • the lacquer or plastic layer 11 is a partial lacquer or plastic layer, then it is arranged in particular only in areas that are assigned to the elevations 4 or certain elevations 4 of the pressing surface 2, directly on the base structure 10 or directly on the indicator layer 13, e.g. by coating.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Claims (13)

  1. Outil de presse pour la fabrication d'une pièce, comprenant une structure de base (10) en métal, une surface de presse (2) et une couche de vernis ou de matière plastique (11, 31), disposée sur la structure de base (10) et constituant au moins partiellement la surface de presse (2), dans laquelle sont incorporées des particules minérales (12, 32), dans lequel
    la surface de presse (2) présente une structure constituée de saillies (4) et de creux (3) ;
    la structure de base (10) est structurée de manière correspondante à la structure de la surface de presse (2) ; caractérisé en ce que
    la couche de vernis ou de matière plastique (11) avec les particules minérales (12) incorporées est déformée partiellement et est disposée sur la structure de base (10) uniquement dans des zones prédéterminées, qui correspondent plus particulièrement aux saillies (4) ou à des saillies (4) prédéterminées de la surface de presse (2).
  2. Outil de presse selon la revendication 1, comprenant une autre couche de vernis ou de matière plastique conçue comme une couche de vernis ou de matière plastique complète (35), dans lequel la couche de vernis ou de matière plastique (11, 31) avec les particules minérales (12, 32) incorporées est partiellement déformée et la couche de vernis ou de matière plastique complète (35) est disposée entre la structure de base (10) et la couche de vernis ou de matière plastique partielle (11, 31).
  3. Outil de presse selon la revendication 2, dans lequel la couche de vernis ou de matière plastique complète (35) présente un degré de brillance et la couche de vernis ou de matière plastique partielle (11, 31) présente un degré de brillance différent du degré de brillance de la couche de vernis ou de matière plastique complète (35) et/ou dans lequel, dans la couche de vernis ou de matière plastique complète (35), sont incorporées d'autres particules minérales (36).
  4. Outil de presse selon l'une des revendications 1 à 3, dans lequel les particules minérales (12, 32) présentent une dureté Mohs d'au moins 8 et/ou sont des particules de diamant et/ou présentent une taille de l'ordre du nanomètre ou du micromètre et/ou représentent une part de volume d'au moins 50 % par rapport au volume de la couche de vernis ou de matière plastique (11, 31) avec des particules minérales (12, 32) incorporées.
  5. Outil de presse selon l'une des revendications 1 à 4, comprenant une couche indicatrice (13, 33) qui est disposée en dessous de la couche de vernis ou de matière plastique (11, 31) et qui présente une propriété optique qui est différente de la propriété optique de la couche de vernis ou de matière plastique (11, 31).
  6. Outil de presse selon la revendication 5, dans lequel la couche indicatrice est constituée de métal ou de matière plastique ou est une couche indicatrice de vernis et/ou dans lequel, dans la couche indicatrice (13, 33), sont incorporées des particules présentant des propriétés optiques (34), de sorte que la couche indicatrice (13, 33) présente une propriété optique correspondante qui est différent de la propriété optique de la couche de vernis ou de matière plastique (11, 31).
  7. Outil de presse selon la revendication 6, dans lequel les particules (34) présentent une taille de l'ordre du micromètre ou du nanomètre et/ou les particules sont des particules de couleur, de sorte que la couche indicatrice (13, 33) présente une couleur correspondante et/ou les particules sont des particules fluorescentes, de sorte que la couche indicatrice (13, 33) présente des propriétés fluorescentes et/ou dans lequel les particules (34) sont des particules minérales, plus particulièrement des particules minérales colorées.
  8. Procédé de fabrication d'un outil de presse selon l'une des revendications 1 à 7, comprenant un revêtement de la structure de base (10) avec la couche de vernis ou de matière plastique (11, 31) avec ajout des particules minérales (12, 32),
    dans lequel la surface de presse (2) présente une structure constituée de saillies (4) et de creux (3), la structure de base (10) est structurée de manière correspondante à la structure de la surface de presse (2) et la couche de vernis ou de matière plastique (11) avec les particules minérales incorporées (12) est partiellement déformée, comprenant un revêtement partiel avec la couche de vernis ou de matière plastique (11) avec ajout des particules minérales (12) en fonction des données d'images correspondant à la structure de la surface de presse (2), de sorte que la couche de vernis ou de matière plastique partielle (11) est disposée sur la structure de base (10) uniquement dans des zones prédéterminées, qui correspondent plus particulièrement aux saillies (4) ou à des saillies (4) déterminées de la surface de presse (2).
  9. Procédé selon la revendication 8, dans lequel la couche de vernis ou de matière plastique est une couche de vernis ou de matière plastique partielle (11, 31) et l'outil de presse (1) comprend une autre couche de vernis ou de matière plastique conçue comme une couche de vernis ou de matière plastique complète (35), qui est disposée entre la structure de base (10) et la couche de vernis ou de matière plastique partielle (11, 31), comprenant les étapes suivantes :
    - revêtement sur toute la surface de la structure de base (10) avec la couche de vernis ou de matière plastique complète (35), plus particulièrement avec l'ajout d'autres particules minérales (36) et
    - revêtement partiel de la couche de vernis ou de matière plastique complète (35) avec la couche de vernis ou de matière plastique partielle (11, 31) avec ajout des particules minérales (12, 32) en fonction des données d'image correspondant à la structure de la surface de presse (2), de sorte que la couche de vernis ou de matière plastique partielle (11, 31) est disposée sur la couche de vernis ou de matière plastique complète (35) uniquement dans des zones prédéterminées qui correspondent plus particulièrement aux saillies (4) ou à des saillies (4) déterminées de la surface de presse (2).
  10. Procédé selon l'une des revendications 8 ou 9, pour la fabrication d'un outil de presse selon l'une des revendications 5 à 7, comprenant un revêtement de la structure de base (10) avec la couche indicatrice (13, 33) et un revêtement de la couche indicatrice (13) avec la couche de vernis ou de matière plastique (11, 31) avec ajout de particules minérales (12, 32).
  11. Procédé selon la revendication 10, comprenant une disposition de la couche indicatrice (13, 33) sur la structure de base (10) et un revêtement partiel de la couche indicatrice (13, 33) avec la couche de vernis ou de matière plastique avec ajout des particules minérales (12, 32) en fonction des données d'image correspondant à la structure de la surface de presse (2), de sorte que la couche de vernis ou de matière plastique partielle (11, 31) est disposée sur la structure de base (10) uniquement dans des zones prédéterminées qui correspondent plus particulièrement aux saillies (4) ou à des saillies (4) déterminées de la surface de presse (2).
  12. Procédé selon la revendication 11, dans lequel la couche de vernis ou de matière plastique est une couche de vernis ou de matière plastique partielle (11, 31) et l'outil de presse (1) comprend une autre couche de vernis ou de matière plastique conçue comme une couche de vernis ou de matière plastique complète (35), qui est disposée entre la structure de base (10) et la couche de vernis ou de matière plastique partielle (11, 31), comprenant les étapes suivantes :
    - disposition de la couche indicatrice (13, 33) sur la structure de base (10),
    - revêtement complet de la couche indicatrice (13, 33) avec la couche de vernis ou de matière plastique complète (35), plus particulièrement avec ajout des particules minérales (12, 32) en fonction des données d'image correspondant à la structure de la surface de presse.
  13. Procédé selon la revendication 8 ou 12 comprenant
    - avant le revêtement de la couche de vernis ou de matière plastique complète (35) avec la couche de vernis ou de matière plastique partielle (35), le durcissement de la couche de vernis ou de matière plastique complète (35), de sorte que celle-ci présente un degré de brillance et
    - le durcissement de la couche de vernis ou de matière plastique partielle (11, 31), de sorte que celle-ci présente un degré de brillance qui est différent du degré de brillance de la couche de vernis ou de matière plastique complète (35).
EP20792948.0A 2019-10-15 2020-10-12 Outil de presse et procédé de fabrication d'un outil de presse Active EP4045306B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019127659.4A DE102019127659A1 (de) 2019-10-15 2019-10-15 Presswerkzeug und Verfahren zum Herstellen eines Presswerkzeugs
PCT/EP2020/078577 WO2021074064A1 (fr) 2019-10-15 2020-10-12 Outil de presse et procédé de fabrication d'un outil de presse

Publications (2)

Publication Number Publication Date
EP4045306A1 EP4045306A1 (fr) 2022-08-24
EP4045306B1 true EP4045306B1 (fr) 2025-03-05

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Country Status (5)

Country Link
US (1) US12076956B2 (fr)
EP (1) EP4045306B1 (fr)
CN (1) CN114555350A (fr)
DE (1) DE102019127659A1 (fr)
WO (1) WO2021074064A1 (fr)

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DE102022125374A1 (de) * 2021-11-04 2023-05-04 Hueck Rheinische Gmbh Presswerkzeug und Verfahren zum Herstellen eines Pressblechs
US20240278523A1 (en) * 2021-11-04 2024-08-22 Hueck Rheinische Gmbh Pressing tool and method for producing a press plate
DE102021131838A1 (de) 2021-12-02 2023-06-07 Hueck Rheinische Gmbh Verfahren und Druckervorrichtung zum Herstellen eines Presswerkzeugs
DE102022116423B4 (de) 2022-06-30 2024-05-16 Hueck Rheinische Gmbh Presswerkzeug und Verfahren zur Herstellung eines Presswerkzeugs

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WO2021074064A1 (fr) 2021-04-22
CN114555350A (zh) 2022-05-27
US12076956B2 (en) 2024-09-03
US20240109268A1 (en) 2024-04-04
EP4045306A1 (fr) 2022-08-24

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