EP2540487B1 - Pressblech oder Endlosband mit einer Struktur in Sandwichbauweise, Verfahren zur Herstellung eines solchen Pressbleches oder Endlosbandes und Verfahren zur Herstellung geprägter Werkstoffe mittels eines solchen Pressbleches oder Endlosbandes - Google Patents

Pressblech oder Endlosband mit einer Struktur in Sandwichbauweise, Verfahren zur Herstellung eines solchen Pressbleches oder Endlosbandes und Verfahren zur Herstellung geprägter Werkstoffe mittels eines solchen Pressbleches oder Endlosbandes Download PDF

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Publication number
EP2540487B1
EP2540487B1 EP11005298.2A EP11005298A EP2540487B1 EP 2540487 B1 EP2540487 B1 EP 2540487B1 EP 11005298 A EP11005298 A EP 11005298A EP 2540487 B1 EP2540487 B1 EP 2540487B1
Authority
EP
European Patent Office
Prior art keywords
embossing
pressing plate
continuous belt
adhesive
carrier
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
EP11005298.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2540487A1 (de
Inventor
Rolf Espe
Oliver Espe
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
Priority to EP11005298.2A priority Critical patent/EP2540487B1/de
Application filed by Hueck Rheinische GmbH filed Critical Hueck Rheinische GmbH
Priority to PL11005298T priority patent/PL2540487T3/pl
Priority to ES11005298.2T priority patent/ES2550955T3/es
Priority to NZ617619A priority patent/NZ617619B2/en
Priority to BR112013030196A priority patent/BR112013030196A2/pt
Priority to RU2013155916A priority patent/RU2626707C2/ru
Priority to US14/114,535 priority patent/US9610748B2/en
Priority to KR1020137034695A priority patent/KR20140012762A/ko
Priority to AU2012278277A priority patent/AU2012278277B2/en
Priority to CA2840544A priority patent/CA2840544C/en
Priority to CN201280031087.8A priority patent/CN103619576B/zh
Priority to PCT/EP2012/002684 priority patent/WO2013000563A1/de
Priority to KR1020167015295A priority patent/KR101742969B1/ko
Priority to JP2014516230A priority patent/JP6102920B2/ja
Publication of EP2540487A1 publication Critical patent/EP2540487A1/de
Priority to CL2013003726A priority patent/CL2013003726A1/es
Application granted granted Critical
Publication of EP2540487B1 publication Critical patent/EP2540487B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/28—Presses specially adapted for particular purposes for forming shaped articles
    • 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
    • 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

Definitions

  • the invention relates to a press plate or endless belt, consisting of a carrier body and an embossing body for embossing materials, in particular wood materials or plastic materials by means of a surface structuring of the embossing body, wherein the carrier body is connected to the embossing body via an adhesive, and a method for producing such a press plate or endless belts and production processes for embossed materials using them.
  • Press plates or endless belts are required to press wood-based panels with decorative and / or overlay papers. This involves a full-surface coating of the wood-based panels with Aminoplastharzfilmen, also called Duroplastharze. Processing takes place, for example, in one-day short-cycle presses or multi-daylight presses.
  • the finished press plates or endless belts are used in the presses to impart a desired surface structure to the wood materials to be produced. Preferably, in this case a congruent embossing is preferred.
  • a decor paper used is used with a conformable press plate or an endless belt, so that the structure of the decorative paper can be embossed into relief in the surface.
  • the structures used in this case may be of natural origin, for example the imitation of a wood pore structure or rock surface, it is also possible to produce any desired structures according to customer requirements.
  • the decorative and overlay papers used are preferably made of thermoset resins, which pass through pressure and temperature in the press line in a liquid form and enter into a solid connection with the wood material with increasing degree of crosslinking, with simultaneous increase in resin viscosity in the final state.
  • thermoset resins used are the melamine, phenolic or melamine / urea resins, which are known as have been found particularly suitable.
  • the melamine resin becomes liquid under pressure and temperature, and a further polycondensation takes place. Press time and temperature determine the degree of crosslinking of the melamine resins and their surface quality.
  • the melamine resin After the pressing time, the melamine resin has the desired degree of crosslinking and has turned into a solid phase, wherein a lifelike, the surface of the embossing tool reproducing surface design is achieved by the effected simultaneously structured embossing of Melaminharzaber Construction.
  • embossing tools in the form of press plates or endless belts made of steel sheets, which receive the required surface structure by appropriate processing.
  • various methods are known, for example, by orders of a screen printing process to provide an etch resist to make a subsequent etching of the press plate.
  • the sheets used in this case have a very large format, so that it depends on a very precise processing and in particular a cover-compliant further processing, as far as several steps are necessary.
  • Several work steps always occur when particularly deep structures have to be etched and for this purpose several etching operations with a previously applied etching resist are required.
  • these further process steps can be subjected to achieve special effects, for example, to influence the gloss level.
  • the degree of gloss can be made from matt, semi-glossy to glossy Pressing the wood-based panels have a desired surface texture with gloss effect that comes very close to that of grown natural wood.
  • wood pore structures are produced by these methods, but equally imaginative surface designs can be made or a leather imitation, tiles or natural stone surfaces can be reproduced. Any conceivable structure can be produced by this method.
  • the overlay papers can be doped with abrasion-resistant particles, such as corundum, so that a high abrasion resistance is present for the end user.
  • abrasion resistance leads to negative effects on the used press plates or endless belts. After each pressing operation and opening of the presses, a relative movement takes place between the processed wood material with the pressed surfaces and the press plate or endless belt, so that a gradual deterioration of the surface structure occurs. In such a case, it is necessary to completely rework the press plate or to replace it with a new press plate.
  • the press plates In the coating, for example of HDF (high-density fiberboard) plates, the press plates must be refurbished after a relatively short period of use. The reason is the high proportion of corundum which is used in the melamine resin films for abrasion resistance, whereby the chrome-plated surfaces are abraded relatively quickly.
  • the production of a press plate is very complex and costly, with a scrapping is provided at the end of the term. Among other things, this is due to the fact that the blanks of the press plates or endless belts are first provided with a direction-free intermediate sanding and additionally polished before the surface structuring, before a new structuring can take place so that gradually after several reworking the thickness of the press plates or endless belts no longer required level reached.
  • a method for producing a press plate in which a press plate blank is brought into a hollow cylindrical shape in order to subsequently fix it to a carrier.
  • the carrier may be, for example, a cylinder, so that the further processing steps can be carried out by rotation.
  • the press plate blank is re-formed into a flat press plate to then make an attachment to a carrier plate with the aid of an adhesive.
  • the use of a pure adhesive is considered to be critical at the temperatures to be provided of up to 230 degrees, so that the adhesion of the press plate blank on the support plate can not be guaranteed permanently.
  • a mold for producing a microstructure is known.
  • This mold is primarily used for clamping on a roller and consists of a carrier film on which an embossing lacquer is arranged.
  • the surface of the embossing lacquer in this case has elevations and depressions in the desired microstructure and is used for embossing of the materials provided.
  • the carrier film In order for the carrier film can be held on the roller, is preferably a Clamping cylinder used, but also not excluded that the attachment of the carrier film can be done by an adhesive or a magnetic attachment.
  • WO 2006/136949 A2 For example, there is known a method of manufacturing floor panels using a press tool consisting of a frame and individual removable press plates.
  • the press plates can be held by screws, an adhesive or possibly magnets.
  • the invention has for its object to provide a novel press plate or endless belt for a single or multi-daylight press, which allows replacement of a stamping body with sufficient heat transfer.
  • the embossing body can be produced inexpensively regardless of the carrier body and be connected by the adhesive with the carrier body insofar that a proper use for single or multi-day presses can be done.
  • After wear of the surface structuring it is possible subsequently to remove the embossing body from the carrier body and replace it with a new embossing body.
  • the material required in this case is significantly reduced because the carrier body can be used over and over again and only an extremely thin coating in the form of an embossing body must be replaced.
  • the carrier body consisting of, for example, stainless steel, for example AISI No. 630, AISI 410 or AISI 304 or brass according to the prior art.
  • the embossing body is produced independently of the carrier body, that is provided with a surface structure.
  • the carrier body and the embossing body with the aid of a magnetic adhesive are intimately and reversibly connected so that a sandwich structure is created.
  • This sandwich structure has the particular advantage that in later work-up the expensive carrier body is retained and only the upper embossing body has to be renewed. By this measure, production and raw material costs are saved to a considerable extent.
  • the embossing body which is usually much thinner and cheaper than the carrier body, already prefabricated and placed in storage for each customer. This saves time and significantly shortens delivery times.
  • the adhesive consists of magnetic materials.
  • Such adhesives are always suitable when the carrier body and the embossing body are both made of steel and thus have magnetic properties.
  • a high temperature resistant magnetic film is used, which ensures the adhesive bond as the intimate connection between the two bodies and consists of a crosslinked silicone elastomer, with an addition of high temperature resistant magnetic materials, such as samarium / cobalt, aluminum / nickel / cobalt, neodyn / Iron / boron, barium or strontium ferrites or soft ferrites, such as manganese / zinc.
  • All of the aforementioned permanent magnet materials lose very little of their holding power, about 15 to 20% at the existing operating temperatures of about 220 °.
  • the proportion of additional magnetic materials depends on the respective desired adhesive force of the materials, less the loss of adhesion at the respective operating temperature and the total weight of the embossing body.
  • these boundary conditions can be taken into account without problems, so that even with the help of a magnetic film, a permanent, but reversible connection between the carrier body and the embossing body can be produced.
  • the magnetic film offers the possibility of separating both bodies from each other without residue, so that a rapid exchange of the embossing body can take place in the event of wear.
  • modified acrylate adhesives for example PMMA adhesive poly (methacrylic methacrylate), PMt poly (methacrylimide), MBS poly (methacryl methacrylate) styrene butadiene, UP unsaturated polyester resins are suitable - DAP diallyl phtatlate, aromatic polyimides, silicone resins, epoxy resins, ACM acrylate rubber or FKM fluorinated rubber adhesive.
  • the adhesive is doped with a metal powder, for example, copper, brass, aluminum or iron.
  • the adhesives used in this case can be used up to temperatures of 250 ° Celsius, so that premature detachment of the embossing, for example, at the temperatures occurring for the production of the material plates of about 220 ° does not occur.
  • the adhesives can be tempered above temperatures of 250 °, so that the embossing body can be detached from the carrier body without further ado.
  • the embossing body for example, etching technology or laser engraving, used, these preferably have only a small thickness and thus can be processed much less complicated.
  • One possibility for this is to clamp a stamping body in the form of a metal foil or thin sheets on a steel cylinder for surface structuring, the diameter of the steel cylinder is adaptable to the maximum width of the press plates, so after completion of the embossing body and after removal of the Stahlzylindem this with the Carrier body can be connected.
  • metal foils or thin sheets or other materials such as steel or brass are used, they can be clamped onto the steel cylinder and then engraved accordingly, followed by the above steps until the completion of the surface structuring.
  • the metal foils or thin sheets produced in this way are then cut to the size of the carrier body and connected to it, so that the press plate or endless belt is available for further use.
  • a ballard skin of about 100 microns on a copper base layer wherein between the base layer and the ballard skin can be arranged a release layer, so that a later lifting of the ballard skin is possible.
  • gravure refers to a peelable layer of copper on a gravure cylinder.
  • the gravure cylinder made of steel covers a 2 mm thick base copper layer on which a second copper layer, the so-called ballard skin, is galvanized. Between the 100 ⁇ m thin ballard skin and the main body lies the separation layer, so that the ballard skin can be easily removed after engraving and replaced with a new one.
  • a metal is preferably used, for example stainless steel, AISI No. 630, AISI 410 or AISI 304 or alternatively a brass sheet.
  • the embossing body may consist of copper, brass or stainless steel, wherein the thickness is freely selectable depending on the required structure depth, preferably 0.3 to 3.0 mm, particularly preferably 0.3 to 1.5 mm.
  • the main advantages of the newly designed press plates or endless belts consists in a later separation of carrier body and embossing body, the embossing body is exposed to significantly higher wear than the carrier body, the carrier body can therefore be used several times and is always new with a stamping body connected, preferably with magnetic materials doped pressure-sensitive adhesives are used, which allow an intimate connection. Alternatively, a connection can be made with the aid of magnetic materials, in particular a magnetic adhesive film, in order to achieve the desired advantages.
  • the method according to claim 12 is characterized by a particular economy and also allows multiple reuse of the carrier body, which is exposed to almost no wear.
  • the embossing bodies used in the form of a thin metal foil or a thin sheet can be reversibly removed from the carrier body, so that a workup of the carrier body is required only to a small extent.
  • considerable processing time is saved and also a considerable savings potential is achieved by the use of thin sheets or metal foils with a surface structuring, in particular due to the fact that the materials to be processed, wood materials with overlay and decor papers cause wear of the embossing body.
  • the particular advantage results from the reversible connection of carrier and embossing body.
  • a further advantage of the press plates or endless belts according to the invention is that less high-quality metals are used for the carrier body and thus the production costs can be significantly reduced. So far, it has been necessary to use high-grade stainless steels, which make it possible to carry out the necessary surface structuring. However, there is no need to be taken into account, since the surface structuring takes place only on the surface of the embossing body.
  • FIG. 1 shows a perspective view of an inventive press plate 1, which is flat in the embodiment shown. In the case of an endless belt, however, this embossing tool can also be curved.
  • the press plate 1 shows a grain 2, which is modeled, for example, the shape of a wood pore structure. However, it is conceivable that other grain or other surface textures in this Way is produced by the inventive method and the necessary etching or laser process.
  • FIG. 2 shows in an enlarged side view part of the front edge region of the press plate 1 and the surface structuring thereon.
  • the press plate 1 consists of a carrier body 10, an embossing body 11 and an adhesive 12.
  • the adhesive 12 allows, as far as it consists of a doped with metal powder high temperature resistant adhesive or a magnetic film, a detachment of the embossing body 11 of the carrier body 10.
  • the carrier body 10th thus, it can be reused while, on the other hand, a worn embossing body 11 is replaced.
  • the existing on the embossing body 11 surface structuring 13 is prepared for example by means of known etching technologies or a laser engraving, wherein a layer thickness of the embossing body of 0.3 to 3 mm, preferably 0.3 to 1.5 mm is used.
  • a layer thickness of the embossing body of 0.3 to 3 mm, preferably 0.3 to 1.5 mm is used.
  • a particular advantage of this invention press plates or endless belts is that for the carrier body 10 less high-quality metals must be used and thus the production costs can be significantly reduced. So far, it has been necessary to use high-grade stainless steels, which make it possible to carry out the necessary surface structuring. However, there is no need to be taken into account, since the surface structuring takes place only on the surface of the embossing body.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Laminated Bodies (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Adhesives Or Adhesive Processes (AREA)
EP11005298.2A 2011-06-29 2011-06-29 Pressblech oder Endlosband mit einer Struktur in Sandwichbauweise, Verfahren zur Herstellung eines solchen Pressbleches oder Endlosbandes und Verfahren zur Herstellung geprägter Werkstoffe mittels eines solchen Pressbleches oder Endlosbandes Active EP2540487B1 (de)

Priority Applications (15)

Application Number Priority Date Filing Date Title
PL11005298T PL2540487T3 (pl) 2011-06-29 2011-06-29 Blacha do wytłaczania albo taśma bez końca mające strukturę obudowie warstwowej, sposób wytwarzania takiej blachy i taśmy bez końca oraz sposób wytwarzania wytłaczanych materiałów przy użyciu tego rodzaju blachy lub taśmy ciągłej
ES11005298.2T ES2550955T3 (es) 2011-06-29 2011-06-29 Chapa de presión o prensado o cinta sin fin con una estructura tipo sandwich, procedimiento para fabricar dicha chapa o cinta sin fin y metodo para fabricar materiales estampados en relieve usando dicha chapa de presión o cinta continua
EP11005298.2A EP2540487B1 (de) 2011-06-29 2011-06-29 Pressblech oder Endlosband mit einer Struktur in Sandwichbauweise, Verfahren zur Herstellung eines solchen Pressbleches oder Endlosbandes und Verfahren zur Herstellung geprägter Werkstoffe mittels eines solchen Pressbleches oder Endlosbandes
KR1020167015295A KR101742969B1 (ko) 2011-06-29 2012-06-26 샌드위치형 구조를 갖는 프레스 압판 또는 순환 벨트
RU2013155916A RU2626707C2 (ru) 2011-06-29 2012-06-26 Прокладка пресса или бесконечная лента многослойной конструкции
US14/114,535 US9610748B2 (en) 2011-06-29 2012-06-26 Press platen or endless belt having a sandwich-type structure
KR1020137034695A KR20140012762A (ko) 2011-06-29 2012-06-26 샌드위치형 구조를 갖는 프레스 압판 또는 순환 벨트
AU2012278277A AU2012278277B2 (en) 2011-06-29 2012-06-26 Press platen or endless belt having a sandwich-type structure
NZ617619A NZ617619B2 (en) 2011-06-29 2012-06-26 Press platen or endless belt having a sandwich-type structure
CN201280031087.8A CN103619576B (zh) 2011-06-29 2012-06-26 具有夹层结构的冲压板或循环带
PCT/EP2012/002684 WO2013000563A1 (de) 2011-06-29 2012-06-26 Pressblech oder endlosband mit einer struktur in sandwichbauweise
BR112013030196A BR112013030196A2 (pt) 2011-06-29 2012-06-26 mesa de impressão ou correia sem fim para estampagem de materiais, processo para fabricar a mesa de impressão ou correia sem fim para estampar materiais, e placa de material
JP2014516230A JP6102920B2 (ja) 2011-06-29 2012-06-26 サンドイッチ構造を備えたプレスシート又はエンドレスベルト、プレスシート又はエンドレスベルトの製造方法、およびプレスシート又はエンドレスベルトを使用して製造される材料パネル
CA2840544A CA2840544C (en) 2011-06-29 2012-06-26 Press platen or endless belt having a sandwich-type structure
CL2013003726A CL2013003726A1 (es) 2011-06-29 2013-12-26 Placa prensadora o correa sin fin para materiales de estampado en particular materiales de madera o materiales plasticos porque se proporciona un cuerpo portador que esta unido a un cuerpo de estampado a traves de un agente adhesivo magneticamente activo y/o metalico; proceso para la placa prensadora o correa sin fin.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11005298.2A EP2540487B1 (de) 2011-06-29 2011-06-29 Pressblech oder Endlosband mit einer Struktur in Sandwichbauweise, Verfahren zur Herstellung eines solchen Pressbleches oder Endlosbandes und Verfahren zur Herstellung geprägter Werkstoffe mittels eines solchen Pressbleches oder Endlosbandes

Publications (2)

Publication Number Publication Date
EP2540487A1 EP2540487A1 (de) 2013-01-02
EP2540487B1 true EP2540487B1 (de) 2015-08-26

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EP11005298.2A Active EP2540487B1 (de) 2011-06-29 2011-06-29 Pressblech oder Endlosband mit einer Struktur in Sandwichbauweise, Verfahren zur Herstellung eines solchen Pressbleches oder Endlosbandes und Verfahren zur Herstellung geprägter Werkstoffe mittels eines solchen Pressbleches oder Endlosbandes

Country Status (13)

Country Link
US (1) US9610748B2 (es)
EP (1) EP2540487B1 (es)
JP (1) JP6102920B2 (es)
KR (2) KR20140012762A (es)
CN (1) CN103619576B (es)
AU (1) AU2012278277B2 (es)
BR (1) BR112013030196A2 (es)
CA (1) CA2840544C (es)
CL (1) CL2013003726A1 (es)
ES (1) ES2550955T3 (es)
PL (1) PL2540487T3 (es)
RU (1) RU2626707C2 (es)
WO (1) WO2013000563A1 (es)

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Publication number Priority date Publication date Assignee Title
EP3666514A1 (de) * 2018-12-12 2020-06-17 Flooring Technologies Ltd. Pressblech zum erzeugen tiefer strukturen
CN110682579A (zh) * 2019-11-10 2020-01-14 衡阳和富铜业有限公司 一种黄铜加工用废料存储设备
DE102022125370B3 (de) 2022-09-30 2024-01-11 Hueck Rheinische Gmbh Verfahren zur Herstellung eines Presswerkzeuges, Presswerkzeug und Verfahren zum Herstellen einer Werkstoffplatte mit einem Presswerkzeug

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Also Published As

Publication number Publication date
PL2540487T3 (pl) 2015-12-31
BR112013030196A2 (pt) 2016-12-06
KR101742969B1 (ko) 2017-06-02
ES2550955T3 (es) 2015-11-13
US9610748B2 (en) 2017-04-04
KR20160069524A (ko) 2016-06-16
KR20140012762A (ko) 2014-02-03
JP2014522745A (ja) 2014-09-08
CA2840544A1 (en) 2013-01-03
JP6102920B2 (ja) 2017-03-29
NZ617619A (en) 2016-01-29
CN103619576A (zh) 2014-03-05
WO2013000563A1 (de) 2013-01-03
AU2012278277B2 (en) 2016-03-03
CA2840544C (en) 2019-02-12
CL2013003726A1 (es) 2014-12-19
RU2626707C2 (ru) 2017-07-31
US20140099395A1 (en) 2014-04-10
EP2540487A1 (de) 2013-01-02
CN103619576B (zh) 2016-08-17
RU2013155916A (ru) 2015-08-10

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