WO2024068228A1 - Outil de presse comprenant une partie cadre et une partie interne - Google Patents

Outil de presse comprenant une partie cadre et une partie interne Download PDF

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Publication number
WO2024068228A1
WO2024068228A1 PCT/EP2023/074648 EP2023074648W WO2024068228A1 WO 2024068228 A1 WO2024068228 A1 WO 2024068228A1 EP 2023074648 W EP2023074648 W EP 2023074648W WO 2024068228 A1 WO2024068228 A1 WO 2024068228A1
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WO
WIPO (PCT)
Prior art keywords
pressing
frame part
inner part
pressing tool
tool
Prior art date
Application number
PCT/EP2023/074648
Other languages
German (de)
English (en)
Inventor
Berthold Thölen
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 WO2024068228A1 publication Critical patent/WO2024068228A1/fr

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/20—Moulding or pressing characterised by using platen-presses
    • B27N3/203—Moulding or pressing characterised by using platen-presses with heating or cooling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N7/00—After-treatment, e.g. reducing swelling or shrinkage, surfacing; Protecting the edges of boards against access of humidity
    • B27N7/005—Coating boards, e.g. with a finishing or decorating layer
    • 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
    • B30B15/062—Press plates
    • B30B15/064—Press plates with heating or cooling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/22—Removing surface-material, e.g. by engraving, by etching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/24—Pressing or stamping ornamental designs on surfaces
    • 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

Definitions

  • Pressing tool with a frame part and an inner part.
  • the invention relates to a pressing tool for pressing material panels in heating presses.
  • Material panels for example wood-based panels, are required for the furniture industry and for interior design, for example for laminate floors.
  • the material panels have a core made of MDF (medium density fiberboard) or HDF (high density fiberboard), onto which core various material layers are placed at least on one side, for example an (optical) decorative layer and a protective layer (overlay layer).
  • MDF medium density fiberboard
  • HDF high density fiberboard
  • such material panels are usually provided with the same number of material layers on both sides; in order to connect the individual layers of the material panels (core, material layers, etc.) to one another, they are pressed together in a press using special pressing tools, in particular press plates or endless belts.
  • the surface of the material panels is also embossed in the process.
  • Hot presses or heating presses are usually used to connect the various material layers made of thermosetting resins, for example melamine resin, to the surface of the core under the influence of heat by fusing the plastic materials.
  • the decorative layers determine the pattern and color design of the material panels; a desired surface structure, however, can be achieved by using suitable pressing tools.
  • a wood or tile decor can be printed on the decorative layer (decorative paper), or decorative layers with patterns and color designs are used that are artistically designed according to the respective purpose.
  • Overlay layers that are printed on the top or bottom can also be used.
  • the pressing tools are provided with a surface structure that is designed to conform to the decorative layer and forms a negative image of the desired surface structure.
  • the pressing tools therefore have a 3D profile (depth structuring) which is modeled on the wood veins of a wooden surface, for example, in order to give the decorative layer of the material board the appearance of such a wooden surface.
  • the pressing plates or endless belts are used as upper and lower tools in short-cycle presses, which are covered with pressing plates, or in double-belt presses for endless belts, whereby the embossing and heating of the material plates takes place at the same time, so that the thermosetting resins of the decorative and/or overlay layers of the material plates are first melted, the surface structure corresponding to the surface structuring of the pressing tools is introduced into the external material layers, and the structured material layers are bonded to the core of the material plate by subsequent hardening.
  • digitized image data of a decorative template can be used to apply an etching resist for structuring the pressing sheets or endless belts.
  • an etching resist is applied to the pressing sheets or endless belts, for example using a digital printer, in order to then carry out an etching process.
  • the pressing tool can be treated further, whereby several etching processes can be carried out one after the other, preferably for surface structuring with particularly deep/high structures.
  • an etching resist is again applied to the already etched pressing sheet or endless belt and etching is carried out again until the desired deep structure has been produced.
  • the surface structuring can also be coarsely or finely structured, depending on which surface structure the material plate is to be given.
  • material-applying processes can also be used to produce the surface structure (layer by layer) on the surface of the pressing tools. Most of these processes use masks (masking) to protect the surface of the pressing tool from subsequent material application or removal. By repeatedly applying appropriate masks and then applying or removing material, surface structures of various designs can be produced.
  • the final result is a surface structure on the pressing tool that represents the negative of the surface structure to be embossed into the material plate. Elevations in the surface structure correspond to the depressions to be embossed in the surface structure of the material plate, or depressions in the surface structure correspond to the elevations that the surface structure of the material plate should have.
  • pressing tools which also have different degrees of gloss.
  • a certain degree of gloss in a selected surface area of the pressing tool, it is possible to create any reflections or shades in the material plate which, for example, reinforce the impression of a natural wood, tile or natural stone surface for an observer.
  • thin chrome layers with different degrees of gloss are used for this purpose, whereby the entire surface of the pressing tool is first chrome-plated and then a further chrome layer is applied which covers either only raised or only deeper areas of the surface structure (EP 3 010 704 B1).
  • EP 1 629 943 A2 discloses an alternative method for producing a cutting or embossing roller by means of laser deposition welding
  • an etching resist is applied to the sheets in order to recreate the raised surface structures through the areas covered by the etching resist, while the gaps are surface etched.
  • the etched areas form the profile valleys of the desired structure, which is created as a negative form.
  • the surface is cleaned and a new mask is applied if necessary so that further etching can follow or the surface can be subjected to a further treatment process, for example hard chrome plating, gloss level adjustment, etc.
  • EP 2 060 658 A2 discloses such a method for producing a pressed sheet with a structured surface, which is produced by applying a mask and etching.
  • large-format pressing tools are used in the form of pressing sheets or endless belts, which have at least an edge length of more than one meter.
  • the pressed sheets or endless belts can be produced using newer processes according to EP3010704B1 using a 3D layer structure.
  • 3D layer structure For this purpose, provided digitized data of 3D topography is used to produce digitized data of individual 2D layers using the 3D topography.
  • the number of 2D layers depends on the desired structure depth, i.e. from the highest to the lowest point of the structure to be created.
  • a depth structuring of 80 pm is achieved using the classic etching technique. In individual cases, however, this structure can extend to a depth of 400 pm. The situation is similar when producing pressed sheets or endless belts using a 3D layer structure.
  • the object of the present invention was to overcome the disadvantages of the prior art and to create a pressing tool for producing a workpiece, in particular a material plate, whose surface structuring has different structures, for example coarse and fine structures as well as a deep surface structuring, to be able to produce it in an improved manner and to be able to produce an improved optical impression.
  • the pressing tool according to the invention consists of at least one frame part and an inner part which can be arranged within a recess of the frame part, with a first surface structure being provided at least on a first pressing surface of the inner part, which has elevations and depressions, in particular in order to produce a structure when pressing material plates onto their plate surface which is modeled on a natural material such as wood, with a second pressing surface of the frame part being spaced apart from the first pressing surface of the inner part when viewed in a pressing direction.
  • the pressing pressures can be transferred to a plate surface of a material plate in an improved manner via the inner part, and a particularly precise pressing can be achieved.
  • the spacing of the inner part can preferably be designed in such a way that it is designed as a recess relative to the frame part, so that its pressing surface is offset inwards relative to the frame part in its recess.
  • a further advantage of spacing the inner part is the possible use of inner walls of the frame part as an extension of the pressing surface. It should be mentioned that if the inner part is spaced in the other direction relative to the frame part, so that this is designed as an elevation in the pressing direction, the wall of the inner part would be an extension of its pressing surface.
  • the inner part is designed to be movable relative to the frame part within the recess in the pressing direction. It is advantageous that the distance of the inner part can be varied and that the pressing pressure of the frame part and inner parts can also be designed differently.
  • a further embodiment provides that the inner part is connected to the frame part.
  • the inner part can be arranged as an insert in the recess of the frame part.
  • This design makes it possible to replace the individual parts when they become worn without having to replace the entire pressing tool. Furthermore, the maintenance of the pressing tools is easier.
  • the inner part can be welded to the frame part, in particular laser welded.
  • This measure makes it possible to create a particularly stable variant of a pressing tool with a high pressing accuracy, which is also particularly economical.
  • Individual welding points can preferably be arranged on a side facing away from the pressing surface of the frame part.
  • a particularly advantageous embodiment provides that a weld seam is provided as a liquid-tight connection between the inner part and the frame part. This configuration enables particularly high-quality production of material panels. Furthermore, undesirable escape of material or liquids from the pressing device can be prevented.
  • the inner part is screwed to the frame part.
  • a second surface structure is provided on the pressing surface of the frame part, which has elevations and depressions.
  • the entire pressing tool can be used to produce a structure on a decoration, which means that structures in different levels can also be produced due to the spacing of the inner part.
  • the pressed surface of the inner part and/or the pressed surface of the frame part each have at least two different degrees of gloss. This serves to create a lifelike reproduction, especially for wood decors, tile decors or natural stone surfaces. By setting a certain degree of gloss, it is also possible to create possible reflections or shades that give the viewer the impression of a natural wood surface or other materials.
  • an inner wall of the frame part facing the inner part in the area of the recess and a side wall of the inner part facing the frame part are inclined relative to the pressing surface of the inner part.
  • This design enables an improved joining of the inner part in the frame part, as well as an increased contact area between the parts in order to ensure more stable pressing behavior.
  • at least one of the inclined walls can be used as an extension of the pressing surface, since due to the spacing of the two parts or the pressing surfaces between them, an inclined surface is formed by the wall.
  • the inner wall of the frame part is inclined and has a surface structure in a portion of the inclined inner wall, preferably with respect to the pressing direction between the inner part and the frame part, corresponding to the spacing or distance of the inner part.
  • continuous, structured inclined surfaces can be produced in the edge regions of the material panels using the pressing tool, with the structured inclined surfaces extending over the edges of the material panels along their side walls.
  • the structure can particularly preferably be the Press surface of the frame part and / or the inner part correspond and be coordinated with one another.
  • the inner wall of the frame part in the area of the recess is inclined at a first angle and the side wall of the inner part is inclined at a second angle relative to the pressing surface of the inner part and the first angle and the second angle are complementary angles.
  • the pressing tool has at least two inner parts, in particular more than 4 inner parts, which are arranged in several recesses in the frame part. This means that a large number of material panels can be produced at the same time using one pressing tool.
  • the pressing tool has at least one coating or surface treatment on the inner part and the frame part, which is applied after the inner part has been arranged in the frame part.
  • the coating can be arranged over the inner part and the frame part so that they have a continuous surface by means of the coating in the transition areas, for example the inner walls of the frame part to the first pressing surface.
  • At least one of the coatings is applied by chemical deposition.
  • Chemically deposited layers have particularly contour-true shapes and uniform pressing properties.
  • At least one of the coatings covers a surface of the pressing tool or at least one of its sheet metal parts, comprising the frame part or the inner part, only in a partial area and the surface of the pressing tool is provided with different degrees of gloss.
  • the coating can be used to mask individual impressions in certain areas or to create other optical impressions with regard to their level of gloss.
  • the coatings are metallic, ceramic or contain plastic. This means that the pressing tools can be manufactured with a special surface appearance and quality.
  • At least one of the coatings is a chromium layer or a nickel-plated or nickel-containing coating. In this way, a particularly high surface quality and wear resistance can be achieved, as well as improved corrosion resistance.
  • the elevations and depressions of the first and second pressing surfaces are matched to a decoration to be pressed and the elevations and depressions have different degrees of gloss. In this way, an additionally improved, lifelike appearance can be achieved using the frame part and the inner part.
  • areas of the side wall of the inner part and the frame parts are treated by laser processing, matt etching, sandblasting, electrochemical etching, masking and etching or chemical treatment.
  • the recess of the frame part is produced by means of at least one of the following methods: water jet cutting, laser cutting, plasma jet, milling, mechanical cutting and grinding.
  • the invention further relates to a method for producing a pressing tool, wherein the pressing tool has a support structure made of a steel sheet and is designed for pressing material panels in heating presses, the method comprising:
  • the inner part is arranged in the frame part in such a way that the inner part can be moved in the pressing direction, at least during the pressing of a material plate.
  • Another embodiment provides that the inner part is connected to the frame part in such a way that the second pressing surface of the frame part is fastened at a distance from the first pressing surface of the inner part, viewed in the pressing direction.
  • the recesses of the frame part are produced by means of a separation process and in the process a side wall of the inner part is formed with a further angle, deviating from a right angle, relative to the second pressing surface of the frame part. It can thus be provided that the side wall has a different, non-complementary angle in addition to the inner wall. Alternatively, it can also correspond to the second angle.
  • the invention further relates to a method for producing a material plate with a structured plate surface by pressing, a pressing tool according to one of claims 1 to 20 being used to press the material plate.
  • a pressing tool according to the invention is used to press the material plate. This creates the possibility that complex structures can be easily applied to the pressing tool using conventional surface treatment processes.
  • the production of certain rustic surface structures, such as an imitation old wood structure for laminate or material panels with large, wide and deep gaps and joints, is therefore possible. But this also makes it easier to create structural elements or functional surfaces on the material panels.
  • the pressing tool By using the pressing tool according to the invention, it is possible, for example, to make very deep impressions in the edges, joints or joint areas of a material plate such as a panel or a plate, which, for example, by material displacement, also over the entire thickness of the material plate with a depth of up to several centimeters, preferably in a range between 1 mm and 30 mm. Coupled with the possibility of forming the edge on an intermediate product of the material plate at an angle, preferably between 30° and 85°, particularly preferably 45°, it is possible to form a folding channel with a fastening surface formed at a right angle to the material plate surface and a folding flag of the edge from the side facing away from the material plate surface along the edge.
  • this folding channel material from the core is removed to enable the edge to be bent over, including the cover layer, preferably made of melamine resin with the surface structure provided on it, and a remaining layer of material from the core.
  • the folding flag thus created is longer than the thickness of the panel due to the angle of the edge to the panel surface.
  • the folding flag is made so thin, preferably between 0.5 mm and 3 mm, that it can be bent over without cracks at an angle of approx. 90° to the panel surface.
  • the shape of the folding channel can also influence the shape of the transition area, for example ensuring a rounded or chamfered shape.
  • adhesive in particular glue
  • glue is introduced into the folding channel, in particular onto the fastening surface of the folding channel, in order to fasten the folding flag to the fastening surface at a right angle to the material panel surface by folding it along a formed fold line in the head area of the folding channel.
  • the protrusion of the folding flag must be removed in order to produce a panel with an edge that has a height that corresponds to the panel thickness.
  • the edge can thus be easily demolded and have a surface structure that can correspond exactly to that on the panel surface.
  • other structures such as end grain, to be formed in the area of the edges.
  • Fig. 1 A pressing tool in oblique view
  • Fig. 2 shows a pressing tool in a sectional view
  • Fig. 3 shows a frame part with several inner parts
  • Fig. 4 shows a further embodiment of a pressing tool
  • Fig. 5 a possible design of a frame part with an inner part
  • Fig. 6 a to d a material plate in sectional view.
  • Fig. 1 shows a pressing tool 1 for pressing material plates 2 in heating presses, wherein the pressing tool 1 consists of at least one frame part 3 and an inner part 5 which can be arranged within a recess 4 of the frame part 3.
  • a first surface structure 7 is provided, which has elevations and depressions, in particular in order to produce a structure on the plate surface 8 when pressing material panels 2 (indicated schematically in FIG. 2) which corresponds to a natural material such as wood can be modeled, as indicated in Fig. 1 on the pressing tool 1.
  • a second pressing surface 9 of the frame part 3 is spaced apart from the first pressing surface 6 of the inner part 5 in a pressing direction 10, preferably for the pressing of material panels 2.
  • the inner part has a distance 20 from the frame part, which is variable depending on the material panel to be produced can be chosen.
  • the inner part 5 is designed to be movable relative to the frame part 3, at least for the process during the pressing of material plates 2 within the recess 4 in the pressing direction 10, as indicated by the dashed direction of movement.
  • the inner part 5 is connected to the frame part 3.
  • the inner part 5 can be arranged as an insert in the recess 4 of the frame part 3.
  • the inner part 5 can be welded to the frame part 3, in particular laser welded.
  • they can Welding points can be arranged on a side 11 facing away from the pressing surface 9 of the frame part 3.
  • the weld seam 12 can particularly preferably serve as a liquid-tight connection between the inner part 5 and the frame part 3.
  • the inner part 5 is screwed to the frame part 3.
  • the distance 20 is also indicated in FIG. 2, with respect to which the pressing surface of the frame part 3 is spaced apart from the inner part 5.
  • a width 32 of the inner part 5 with respect to the pressing direction 10 can be chosen to be smaller than a thickness 33 of the frame part 3.
  • the inner part and the frame part can be flush on the facing side 11, so that a continuous surface is formed on the facing side 11.
  • a second surface structure 13 which also has elevations and depressions, can particularly preferably be provided on the pressing surface of the frame part 3.
  • the pressing surface of the inner part 5 and/or the pressing surface of the frame part 3 each have at least two different degrees of gloss.
  • a matt finish can preferably be provided on the surfaces in order to create a desired impression.
  • an inner wall 14 of the frame part 3 facing the inner part 5 in the region of the recess 4 and/or a side wall 15 of the inner part 5 facing the frame part 3 can be inclined relative to the pressing surface 6 of the inner part 5.
  • the pressing tool 1 can have at least two inner parts 5, in particular more than 4 inner parts 5, as is indicated schematically in FIG. 4 with 8 inner parts, which are arranged in several recesses 4 of the frame part 3.
  • the inner parts can be uniform in shape and arranged in a grid, but they can also vary in shape.
  • At least one coating 18 or surface treatment is arranged on the inner part 5 and the frame part 3, which is applied after the inner part 5 has been arranged in the frame part 3 and can thus preferably be designed to overlap the inner part and the frame part.
  • coatings are provided, for example in the form of a multi-layer structure, or even partial layers, wherein preferably at least one of the coatings 18 can be applied by chemical deposition. Furthermore, at least one of the coatings 18 can be a chromium layer or a nickel-plated or nickel-containing coating 18.
  • At least one of the coatings 18 covers a surface 19 of the pressing tool 1 or at least one of its sheet metal parts, comprising the frame part 3 or the inner part 5, only in a partial area and the surface 19 of the pressing tool 1 with different degrees of gloss is provided.
  • the coatings 18 mentioned can consist of various materials and can be metallic, ceramic and/or plastic.
  • areas of the side wall 15 of the inner part 5 and/or the inner wall of the frame part 3 can be treated by laser machining, matt etching, sandblasting, electrochemical etching, masking and etching or chemical treatment.
  • the recess 4 of the frame part 3 can be produced by means of a separation process, preferably by means of at least one of the following processes;
  • Water jet cutting, laser cutting, plasma jet, milling, mechanical cutting and grinding This is preferably done in an initial cutting process and a subsequent grinding process or even a polishing process.
  • the elevations and depressions of the first and second pressing surfaces of the frame and inner parts are matched to a decoration to be pressed, wherein the elevations and depressions have different degrees of gloss as indicated in Fig. 5, preferably for producing a material plate according to Fig. 6.
  • the pressing surface of the frame part 3 can have a second surface structure 13 which has elevations and depressions, the surface structure being formed with respect to the recess 4 only in a partial area 34 of the inner wall 14, as indicated in Fig. 5.
  • the partial area 34 is preferably formed parallel or flush with the inner part 5.
  • the partial area extends starting from the second pressing surface 9 with respect to the pressing direction over a thickness 33 of the frame part 3, minus the width 32 of the inner part, or starting from the opposite side 11 with respect to the pressing direction 10 from a width 32 of the inner part 5 towards the second pressing surface 9, and thus preferably has a distance 20.
  • the partial area 34 can particularly preferably be arranged over an entire area of the inner wall between the inner part and the frame part. As mentioned at the beginning, it can also have a surface structure corresponding to the pressing surface of the frame part and/or the inner part.
  • the inner part and the outer part are made from the same component by forming the inner part with respect to an angle using a separation process, whereby the first and second angles of the inner and frame parts are already produced by means of the separation process.
  • the component used can thus form a continuous surface structure, which is divided into the inner part and the frame part by means of the separation process.
  • FIG. 5 indicates a method for producing a pressing tool, the pressing tool comprising the method:
  • the inner part 5 can be arranged in the frame part 3 in such a way that the inner part 5 can be moved in the pressing direction 10 at least during the pressing of a material plate.
  • the inner part 5 is connected to the frame part 3 in such a way that a second pressing surface 9 of the frame part 3 is fastened at a distance 20 relative to the pressing surface 6 of the inner part 5 when viewed in the pressing direction 10.
  • the recess 4 of the frame part 3 can preferably be produced by means of a separation process and a side wall 15 of the inner part 5 can be formed with a further angle, deviating from a right angle, relative to the second pressing surface of the frame part 3. It is therefore also conceivable that the side wall also has a non-complementary angle relative to the inner wall in one embodiment.
  • a method for producing a material plate with a structured plate surface using a pressing tool is indicated, for example, in FIG. 6, wherein an intermediate product 22 is preferably first produced in individual steps.
  • the method includes producing an intermediate product 22 of the material plate by means of the pressing tool, the intermediate product 22 having a surface structure 23 produced with the pressing tool, which extends over the plate surface 8, over at least one further plate section 25, the plate section 25 being at a third angle 21 is inclined to the plate surface 8 by means of a formed edge 26.
  • Fig. 6 a shows a first state of the intermediate product 22 after it has been produced with a previously described pressing tool.
  • the plate surface 8 has a plate section 25, wherein the plate section 25 is inclined at a third angle 21, preferably 30° to 85°, in particular 45°, to the plate surface 8 by means of a formed edge 26.
  • Fig. 6 b shows the intermediate product 22 during milling or shaping of an underside 24 of the material plate facing away from the plate surface 8 along the edge 26, around a folding channel 27 with an internal fastening surface 28, in particular at right angles to the plate surface 8, and a corresponding one to form a third angle 21 inclined folding flag 29 on the edge 26.
  • the adhesive 30, in particular glue is introduced into the folding channel, in particular onto the fastening surface 28 of the folding channel, and the following steps are carried out:- folding over the folding flag 29 in order to fasten the edge 26 at a right angle to the material plate surface 8 against the fastening surface 28, and cutting off the projection 31 of the folding flag 29 on the underside 24 according to Fig. 6 c).
  • the total thickness of the material plate 2 can be up to several centimeters, preferably in a range between 1 mm and 30 mm.
  • the core 35 of the material board 2 can consist, for example, of MDF, pulpwood, chipboard, composite materials or wood. Due to the angle 21 from the edge 26 to the material plate surface, the folding tab 29 of the intermediate product 22 is longer than the material plate is thick.
  • the folding tab 29 is made so thin, preferably between 0.5 mm and 3 mm, that it can be bent over to an angle of approximately 90° to the plate surface without cracks.
  • the shape of the folding channel 27 can be chosen so that it influences the shape of the transition area between the edge 26 and the material plate surface, for example to form a rounded or chamfered shape.
  • Fig. 6 d the material plate 2 is shown as a finished product, with the protrusion 31 of the folding tab 29 already being separated.
  • Figures 1 to 3 and 5 show a preferred embodiment of the frame part with the inner part, in which the inner part is designed as a depression relative to the frame part with respect to the pressing direction. In principle, it is also conceivable to design this the other way around, so that the inner part is designed as a raised area relative to the frame part.
  • Inner part 35 core first pressing surface 36 cover layer first surface structure

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)

Abstract

L'invention concerne un outil de presse (1). L'outil de presse (1) comprend au moins une partie cadre (3) et une partie interne (5) qui peut être disposée à l'intérieur d'un évidement (4) de la partie cadre (3). Au moins une première surface de presse (6) de la partie interne (5) est équipée d'une première structure de surface (7) qui présente des crêtes et des creux, en particulier afin de produire une structure qui imite un matériau naturel, tel que du bois, sur la surface (8) des panneaux de matériau (2) lors de la pression de ceux-ci. Une seconde surface de pression (9) de la partie cadre (3) est disposée à une certaine distance de la première surface de pression (6) de la partie interne (5) lorsqu'elle est vue dans une direction de pression (10).
PCT/EP2023/074648 2022-09-30 2023-09-07 Outil de presse comprenant une partie cadre et une partie interne WO2024068228A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022125369.4A DE102022125369A1 (de) 2022-09-30 2022-09-30 Presswerkzeug mit einem Rahmenteil und einem Innenteil
DE102022125369.4 2022-09-30

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WO2024068228A1 true WO2024068228A1 (fr) 2024-04-04

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DE (1) DE102022125369A1 (fr)
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4913639A (en) * 1988-09-13 1990-04-03 Wheeler Robert G Composite caul plate
EP1629943A2 (fr) 2004-07-23 2006-03-01 HILTI Aktiengesellschaft Carter de protection
EP2060658A2 (fr) 2007-11-16 2009-05-20 Hueck Engraving GmbH & Co. KG Procédé de traitement d'une surface structurée
US20110117325A1 (en) * 2009-05-11 2011-05-19 Martin Segaert Laminate panel and methods for manufacturing laminate panels
EP3010704B1 (fr) 2013-06-19 2020-07-22 HUECK Rheinische GmbH Procédé et dispositif permettant de produire une structure de surface tridimensionnelle d'un outil de compression

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1016613A3 (nl) 2005-06-06 2007-02-06 Flooring Ind Ltd Werkwijze, inrichting en accessoires voor het vervaardigen van vloerpanelen.
DE102008025542B4 (de) 2008-05-27 2010-04-29 Flooring Technologies Ltd. Verfahren zur Herstellung von Fußbodenpaneelen
EP3666514A1 (fr) 2018-12-12 2020-06-17 Flooring Technologies Ltd. Tôle embouti permettant de produire des structures plus profondes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4913639A (en) * 1988-09-13 1990-04-03 Wheeler Robert G Composite caul plate
EP1629943A2 (fr) 2004-07-23 2006-03-01 HILTI Aktiengesellschaft Carter de protection
EP2060658A2 (fr) 2007-11-16 2009-05-20 Hueck Engraving GmbH & Co. KG Procédé de traitement d'une surface structurée
US20110117325A1 (en) * 2009-05-11 2011-05-19 Martin Segaert Laminate panel and methods for manufacturing laminate panels
EP3010704B1 (fr) 2013-06-19 2020-07-22 HUECK Rheinische GmbH Procédé et dispositif permettant de produire une structure de surface tridimensionnelle d'un outil de compression

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Publication number Publication date
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