EP4005757B1 - Procédé et installation de fabrication de panneaux de matière - Google Patents

Procédé et installation de fabrication de panneaux de matière

Info

Publication number
EP4005757B1
EP4005757B1 EP21203626.3A EP21203626A EP4005757B1 EP 4005757 B1 EP4005757 B1 EP 4005757B1 EP 21203626 A EP21203626 A EP 21203626A EP 4005757 B1 EP4005757 B1 EP 4005757B1
Authority
EP
European Patent Office
Prior art keywords
composite material
profiling
material sheet
continuous press
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.)
Active
Application number
EP21203626.3A
Other languages
German (de)
English (en)
Other versions
EP4005757A1 (fr
EP4005757C0 (fr
Inventor
Michael Vaeßen
Patrick Harf
Ulrich Maier
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.)
Siempelkamp Maschinen und Anlagenbau GmbH and Co KG
Original Assignee
Siempelkamp Maschinen und Anlagenbau GmbH and Co KG
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 Siempelkamp Maschinen und Anlagenbau GmbH and Co KG filed Critical Siempelkamp Maschinen und Anlagenbau GmbH and Co KG
Publication of EP4005757A1 publication Critical patent/EP4005757A1/fr
Application granted granted Critical
Publication of EP4005757B1 publication Critical patent/EP4005757B1/fr
Publication of EP4005757C0 publication Critical patent/EP4005757C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
    • B27N3/183—Forming the mat-edges, e.g. by cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C5/00—Machines designed for producing special profiles or shaped work, e.g. by rotary cutters; Equipment therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C5/00—Machines designed for producing special profiles or shaped work, e.g. by rotary cutters; Equipment therefor
    • B27C5/08—Rounding machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D3/00—Veneer presses; Press plates; Plywood presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D3/00—Veneer presses; Press plates; Plywood presses
    • B27D3/04—Veneer presses; Press plates; Plywood presses with endless arrangement of moving press plates, belts, or the like
    • 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
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
    • 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
    • B27N3/02—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
    • 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
    • B27N3/24—Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone
    • 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
    • B27N5/00—Manufacture of non-flat articles
    • 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
    • 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
    • B30B15/08—Accessory tools, e.g. knives; Mountings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/32—Discharging presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/34—Heating or cooling presses or parts thereof
    • 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
    • B30B5/06—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 co-operating with another endless band

Definitions

  • the invention relates to a method for producing material plates, in which particles are pressed in a continuous press between two circulating belts under the application of heat to form a composite strand and in which the composite strand emerging from the continuous press is subsequently cut into material plates of the desired size and provided with a profiling process to achieve a non-rectangular material plate cross-section.
  • the invention also relates to a plant for producing material plates with a heatable continuous press, a cutting device for producing material plates from a composite strand of pressed particles emerging from the continuous press and a profiling device for achieving a non-rectangular material plate cross-section.
  • Material boards are primarily understood to be wood-based panels that have already been produced in a preferably continuous press and subsequently cut with saws.
  • suitable materials are particle boards, MDF boards, or OSB boards, whereby the particles mentioned in the introduction are then essentially wood fibers or wood chips that have been provided with a binding agent.
  • lignocellulosic materials such as the fibers of annual plants (e.g., rice straw) have also been used to press material boards.
  • Material boards within the meaning of the invention can, however, also be insulation boards, plasterboards, plastic boards, or other material boards whose particles have been pressed by means of circulating belts in a continuous press with the application of heat. Such a press is used in the The applicant markets the product under the name ContiRoll.
  • Binders are typically added to the particles before the continuous press to ensure the material sheets are highly stable.
  • the composite strand of the aforementioned possible particles produced in this way in the continuous press and emerging from the continuous press is, of course, significantly flat in cross-section due to subsequent cutting processes during the production of material sheets.
  • the height of the composite strand emerging from the press is less than a hundredth of its width.
  • profiling process referred to in the generic term primarily involves contouring, particularly at the edge of a material plate, which can be achieved using cutting or milling tools. However, within the scope of the invention, profiling is not intended to be limited to the edge.
  • coatings are also common on particleboard and MDF boards. Examples include coatings made of (resin-impregnated) paper, linoleum, or plastic films.
  • the finished boards often have similar edge shapes. Such boards can be found, for example, in the furniture industry, where, depending on customer requirements, such edge shapes are incorporated into the boards using cutting or milling tools.
  • WO2004089585A2 discloses the preamble of claim 1.
  • the invention aims to simplify the process for producing profiled material panels.
  • the profiling process takes place before the material plates have cooled to the average temperature between the temperature of the composite strand at the outlet of the continuous press and the ambient temperature.
  • profiling of the composite strand can be carried out without difficulty even at temperatures above the temperature between the exit temperature of the composite strand from the continuous press and the ambient temperature, without causing undesirable stresses to develop later in the material sheets.
  • the profiling process is carried out between the exit of the composite strand from the continuous press and a saw for dividing the composite strand into individual sections.
  • the individual sections which often already correspond to the final material sheet size, then already have two profiled edges and no longer need to wait for the cooling process, for example, in a star-shaped mill, before being profiled.
  • the time savings enable either faster production or fewer post-processing machines.
  • the profiling process comprises a partial round milling of the side edge of the composite strand.
  • Partial round milling in particular is much more complex afterwards than if it is carried out directly behind the continuous press or a trimming device.
  • the composite strand is coated on at least one side between the profiling process and the division of the composite strand into individual sections.
  • coating can also be carried out in a way that simplifies the process before the composite strand is divided into individual sections.
  • the coating is preferably carried out with a paper or film lamination, wherein the paper or film is connected, in particular glued, to at least one side of the composite strand.
  • a side refers to the top or bottom of the flat composite strand.
  • the coating material paper or film
  • the new arrangement of processing steps has the particular advantage that the composite strand is still warm, which can have a very beneficial effect on the bonding process.
  • the object is finally achieved in terms of the system by the features of claim 7 and in particular by the fact that the profiling process is carried out by a profiling device which is arranged a maximum of 20 m behind the exit point of the composite strand from the continuous press.
  • profiling device can be combined with the trimming device downstream of the press.
  • the profiling device is arranged between the exit point of the composite strand from the continuous press and a saw for dividing the composite strand into individual sections.
  • the profiling device already includes a rounding cutter.
  • the coating device comprises a one- or two-sided unwinder for papers or films that can be connected to the composite strand as a coating.
  • Fig. 1 shows a plant for producing a material plate 1 in a top view. For reasons of clarity, neither the composite strand nor the cut material plate are shown. The deflection arrows indicate that the plant in the upper row continues into the lower row.
  • a continuous press 2 On the left side of the top row, the end of a continuous press 2 can be seen.
  • a continuous press marketed by the applicant under the name ContiRoll, is well known and needs no further description.
  • a composite strand is produced by a mat of scattered particles, which are are usually moistened with a binding agent, is compacted under pressure and heat.
  • the particles are often lignocellulosic fibers or wood chips, but are not intended to be limited to this within the scope of the invention.
  • the mat emerges compacted as a composite strand at the outlet of the continuous press 2a at a temperature T2 and is transported via a single conveyor track 3 (shown here as a roller conveyor) to a trimming device 4, where unclean edges or the desired width are cut using a trimming cutting tool 5.
  • a trimming device 4 where unclean edges or the desired width are cut using a trimming cutting tool 5.
  • the composite strand retains its rectangular, flat cross-section.
  • the profiling device 6 in which, according to the invention, the composite strand is profiled, particularly at the edges, so that the composite strand no longer has a rectangular cross-section.
  • a partial round milling cutter 7 is provided for the edge 20.
  • this profiling takes place well before the composite strand, which exits the press at a temperature T2, has reached the ambient temperature T1.
  • the distance between the press exit 2a and the profiling device is at least less than 20 m and is always located in front of a dividing saw, here in the form of a diagonal saw 11.
  • the composite strand can even be so warm that it is even above the average temperature between the temperature at exit T2 from the continuous press 2a and the ambient temperature T1.
  • the profiled composite strand is transported via a bridging conveyor 8 to a coating device 9.
  • a coating device 9 At least one unwinding roll 12a with an upper coating material 18a, and alternatively or jointly at least one unwinding roll 12b for the lower Coating material 18b.
  • Films or (resin-impregnated) paper are common and applicable coating materials.
  • an upper paper web (upper coating material 18a) and a lower paper web (lower coating material 18b) are pulled off the unwinding rolls 12a, 12b, coated with adhesive by an adhesive supply 13 each and finally glued to the upper and lower sides of the composite strand via pressable and, if necessary, heatable pressure rollers 14.
  • a finishing device for the coating 10 in which, for example, a wider upper coating web 18a is deflected around a rounded edge of the composite strand, for example, and the end is glued to the underside of the composite strand, for example overlapping the lower coating material 18b.
  • a wider upper coating web 18a is deflected around a rounded edge of the composite strand, for example, and the end is glued to the underside of the composite strand, for example overlapping the lower coating material 18b.
  • Such a (usually circular) saw moves at an angle over the continuous composite strand in order to achieve a cut that is perpendicular to the feed direction.
  • Fig. 3 shows a typical embodiment of a plasterboard in section, with the figure focusing on the design of the edge 20, i.e. the profiling. It is also indicated how an upper coating paper 18a and a lower coating paper 18b are attached to the Composite strand 16 is bonded. The upper coating paper 18a is guided around the milled edge 20 in the coating finishing device 10 to the underside of the composite strand 16 and overlaps the lower coating paper 18b on the underside.
  • the edge 20 itself was previously created in the profiling device 6 using a milling cutter 7, which is suitable for producing the desired curves 17 and bevels.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Claims (12)

  1. Procédé de fabrication de panneaux à base de matériaux, pour lequel des particules sont comprimées en un cordon de matière composite dans une presse en continu entre deux bandes périphériques avec apport de chaleur et le cordon de matière composite sortant de la presse en continu (2) est ensuite découpé en panneaux à base de matériaux de la taille souhaitée et est pourvu d'une opération de profilage pour obtenir une section de panneau de matériaux non rectangulaire, caractérisé en ce que l'opération de profilage a lieu dans un dispositif de profilage (6) avant que les panneaux à base de matériaux ne soient refroidis à la température moyenne entre la température (T2) du cordon de matière composite à la sortie (2a) de la presse en continu (2) et la température ambiante (T1).
  2. Procédé selon la revendication 1, caractérisé en ce que l'opération de profilage dans un dispositif de profilage (6) est exécutée entre la sortie (2a) du cordon de matière composite de la presse en continu (2) et une scie (11) pour la division du cordon de matière composite en sections individuelles.
  3. Procédé selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que l'opération de profilage dans un dispositif de profilage (6) comprend un fraisage d'arrondi partiel du bord latéral du cordon de matière composite.
  4. Procédé selon l'une quelconque des revendications 2 ou 3, caractérisé en ce qu'un revêtement au moins unilatéral du cordon de matière composite a lieu dans un dispositif de revêtement (9) entre l'opération de profilage dans un dispositif de profilage (6) et la division du cordon de matière composite en sections individuelles par la scie (11).
  5. Procédé selon la revendication 4, caractérisé en ce qu'un revêtement bilatéral du cordon de matière composite a lieu entre l'opération de profilage dans un dispositif de profilage (6) et la division du cordon de matière composite en sections individuelles par une scie (11).
  6. Procédé selon l'une quelconque des revendications 4 ou 5, caractérisé en ce que le revêtement a lieu avec un contrecollage de papier ou de feuilles, sachant que le papier ou la feuille est relié, en particulier collé, au moins d'un côté au cordon de matière composite.
  7. Installation de fabrication de panneaux à base de matériaux selon un procédé selon l'une quelconque des revendications 1 à 6 avec une presse en continu pouvant être chauffée, un système de coupe pour la production de panneaux à base de matériaux en cordon de matière composite de particules comprimées, sortant d'une presse en continu, et un dispositif de profilage pour obtenir une section de panneau en matériaux non rectangulaire, sachant que l'opération de profilage a lieu par un dispositif de profilage (6), qui est disposé au maximum à 20 m derrière le point de sortie (2a) du cordon de matière composite de la presse en continu (2).
  8. Installation selon la revendication 7, caractérisée en ce que seulement une bande de convoyage est disposée entre le point de sortie du cordon de matière composite de la presse en continu et le dispositif de profilage.
  9. Installation selon la revendication 7 ou 8, caractérisée en ce que le dispositif de profilage (6) est disposé entre le point de sortie (2a) du cordon de matériau composite de la presse en continu (2) et une scie (11) pour diviser le cordon de matière composite en sections individuelles.
  10. Installation selon l'une quelconque des revendications 7 à 9, caractérisée en ce que le dispositif de profilage comprend une fraise à arrondir (7).
  11. Installation selon l'une quelconque des revendications 9 ou 10, caractérisée en ce qu'un dispositif de revêtement (9) est disposé entre le dispositif de profilage et la scie (11).
  12. Installation selon la revendication 11, caractérisée en ce que le dispositif de revêtement (9) comprend un déroulement (12a, 12b) uni- ou bilatéral pour des papiers ou des feuilles, qui peuvent être reliés au cordon de matériau composite (16) en tant que revêtement (18a, 18b).
EP21203626.3A 2020-11-09 2021-10-20 Procédé et installation de fabrication de panneaux de matière Active EP4005757B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020006861.8A DE102020006861A1 (de) 2020-11-09 2020-11-09 Verfahren und Anlage zur Herstellung von Werkstoffplatten

Publications (3)

Publication Number Publication Date
EP4005757A1 EP4005757A1 (fr) 2022-06-01
EP4005757B1 true EP4005757B1 (fr) 2025-10-15
EP4005757C0 EP4005757C0 (fr) 2025-10-15

Family

ID=78332593

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21203626.3A Active EP4005757B1 (fr) 2020-11-09 2021-10-20 Procédé et installation de fabrication de panneaux de matière

Country Status (3)

Country Link
US (1) US11794374B2 (fr)
EP (1) EP4005757B1 (fr)
DE (1) DE102020006861A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024191652A1 (fr) * 2023-03-10 2024-09-19 Louisiana-Pacific Corporation Procédé de production de panneaux en bois finis en usine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3577936A (en) * 1969-01-10 1971-05-11 William M Emery Stool or leg rest
DE60135763D1 (de) * 2000-10-06 2008-10-23 Mitek Holdings Inc System zur herstellung von bauholz mit abgerundeten enden
DE10315997A1 (de) * 2003-04-07 2004-12-02 Fritz Egger Ges. m.b.H. & Co. Spanplatte sowie Verfahren zur Herstellung einer Spanplatte
DE102011015195B4 (de) * 2011-03-25 2012-12-27 Fritz Egger Gmbh & Co. Og Verfahren und Vorrichtung zum Bekanten von Holzwerkstoffplatten sowie Holzwerkstoffplatten
DE102015107376A1 (de) 2015-05-11 2016-11-17 Dieffenbacher Maschinenfabrik Gmbh, Zaisenhausen Vorrichtung und Verfahren zur Kühlung von Werkstoffplatten
CN109500976B (zh) * 2018-11-30 2021-06-22 大亚木业（江苏）有限公司 一种高强度低醛刨花板的生产工艺
BE1026957B1 (nl) * 2019-01-09 2020-08-14 Ivc Bvba Methode voor het vervaardigen van een vloer- of wandpaneel

Also Published As

Publication number Publication date
US11794374B2 (en) 2023-10-24
EP4005757A1 (fr) 2022-06-01
EP4005757C0 (fr) 2025-10-15
DE102020006861A1 (de) 2022-05-12
US20220143863A1 (en) 2022-05-12

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