EP2296832B1 - Dispositif de presse, et procédé d'élimination de dépôts sur un outil de presse - Google Patents

Dispositif de presse, et procédé d'élimination de dépôts sur un outil de presse Download PDF

Info

Publication number
EP2296832B1
EP2296832B1 EP09749885A EP09749885A EP2296832B1 EP 2296832 B1 EP2296832 B1 EP 2296832B1 EP 09749885 A EP09749885 A EP 09749885A EP 09749885 A EP09749885 A EP 09749885A EP 2296832 B1 EP2296832 B1 EP 2296832B1
Authority
EP
European Patent Office
Prior art keywords
pressing
deposits
work surface
wood
laser beam
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
EP09749885A
Other languages
German (de)
English (en)
Other versions
EP2296832A1 (fr
Inventor
Ralf Niederer
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.)
Fritz Egger GmbH and Co OG
Original Assignee
Fritz Egger GmbH and Co OG
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 Fritz Egger GmbH and Co OG filed Critical Fritz Egger GmbH and Co OG
Priority to PL09749885T priority Critical patent/PL2296832T3/pl
Publication of EP2296832A1 publication Critical patent/EP2296832A1/fr
Application granted granted Critical
Publication of EP2296832B1 publication Critical patent/EP2296832B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
    • B08B7/0042—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like by laser

Definitions

  • the invention relates to a method for removing deposits on a working surface of a pressing tool of a pressing device for pressing a workpiece in the form of a wood-based panel, a coated wood-based panel, a laminate and / or a compact panel for its production.
  • the invention relates to a pressing device for producing a workpiece in the form of a wood-based panel, a coated wood-based panel, a laminate and / or a compact panel for performing a corresponding method, with at least one pressing tool for pressing the workpiece, wherein the at least one pressing tool with the workpiece has during work in contact coming work surface.
  • Some of the workpieces may give off material to the pressing tool during pressing, which accumulates on the pressing tool, so that from time to time cleaning of the pressing tool is required.
  • a corresponding method is the production of wood-based panels, in which, for example, wood-based material particles, such as chips or fibers are provided with an adhesive or glued.
  • the wood-based material particles are first layered and then at elevated temperature to a Pressed wood material board.
  • wood-based panels that glued instead of glued Wood particles are formed by a mixture of at least one wood material and at least one plastic, in particular a thermoplastic material. This is also referred to as Wood Plastic Composite (WPC).
  • WPC Wood Plastic Composite
  • Comparable with the production of wood-based panels is the production of moldings from wood-based materials. These usually consist of the same materials as wood-based panels, but have profiled surfaces. By shaped bodies is meant three-dimensionally shaped elements, which consequently have a profiled surface.
  • the moldings include in particular so-called Doorskins or door decks, which are used for the production of door leaves and represent flat elements with three-dimensionally deformed or profiled area. Large areas of doorskins or door decks, hereinafter referred to collectively as doorskins, have flat surfaces followed by areas that are not in the same plane in extent.
  • a so-called prepreg is typically first prepared in the form of a pre-consolidated, inherently stable plate.
  • chips, fibers or the like are usually provided with binder and additives in analogy to the production process for plane wood-based panels, dried, formed into a mat and fed to a press.
  • the binder Under the influence of pressure and temperature, the binder should be cured to the extent that the prepreg is stable enough for further processing.
  • all adhesives can be used.
  • aminoplasts such as urea-formaldehyde resins (UF) and melamine-formaldehyde resins (MF), or a mixture of the two.
  • Phenoplasts such as phenol-formaldehyde resin, are also suitable, as well as a mixture with aminoplasts.
  • a shaped mat for producing a prepreg or a flat wood-based panel are suitable for continuous production press devices with press belts in the arrangement of a double belt press, for example by the conti-roll method or by the calendering or Mendeclar, in which rolls as pressing tools or calender rolls are used.
  • a Kalanderpressvorraum usually a plurality of rollers is provided which form with each other nips through which the molded mat is carried out until the desired degree of cure is achieved.
  • the cooperating calender rolls regularly have widely differing diameters.
  • the prepreg is pressed for the final shaping in a pressing device whose heated pressing tools opposite pressing plates in the form of moldings form a shape which is adapted in its design to the desired shape in terms of geometry and thickness of the shaped body to be produced.
  • the working surfaces of corresponding pressing tools therefore also have profiled working surfaces. For this reason, the work surfaces often have very tight radii and edged Heels that are easily soiled and hard to clean.
  • the production of a coated wood-based panel can basically be done in two different ways.
  • at least one previously impregnated with a resin paper can be applied to a wood-based panel, wherein then the wood-based panel and the at least one resin-impregnated paper are pressed together at elevated temperature.
  • we speak of a direct coating we speak of a direct coating.
  • first of all a series of resin-impregnated papers can be pressed together at elevated temperature to form a so-called laminate. Only in a later process, the laminate is then applied as a coating on a wood-based panel and pressed with this.
  • the direct coating in the case of coating by means of laminates, the production of the laminates and the actual coating of the wood-based panel are carried out independently of one another.
  • coatings are used which are cured, for example chemically or by irradiation.
  • a pressing process is dispensable in these processes, which are not considered below.
  • resins such as condensation resins are used.
  • the curing of these resins takes place on the one hand at elevated pressure and on the other hand elevated temperature in a cycle or a continuous process.
  • HPL high pressure laminate
  • CPL continuous pressure laminate
  • Pressing plates are used for cycle processes, whereas for continuous processes press belts are used, for example, in so-called double belt presses.
  • press tools have, in particular for the production of laminates and coated wood-based panels, usually a flat surface in order to simultaneously smooth the surface of the workpiece during pressing.
  • compact panels which are typically used in the furniture industry, is comparable or even identical to the construction of laminates.
  • Laminates like laminates, generally have several layers of resin-impregnated pulp and / or paper webs laid one on top of the other and pressed at elevated temperature into a common workpiece. Also, in both cases, in particular condensation resins are used as impregnation of the pulp and / or paper webs.
  • Compact panels unlike laminates, are not permanently pressed with a substrate such as a wood-based panel after their manufacture. The resin of the compact panels is completely cured during the pressing, so that the compact panel then retains the form taken during the pressing. For the production of compact panels, therefore, presses with pressing tools designed as molded parts are used as needed, the profile of the Work surface of the molded parts dictates the shape of the later compact panel.
  • Press tools are also understood to mean tools for chipless smoothing of wood-based panels. When smoothing the wood-based panels they are already finished pressed and hardened in itself. The smoothing is therefore merely the surface finishing by plasticizing and flattening of the surface protruding wood fibers or shavings.
  • pressing tools in the form of rolls or press plates are used.
  • the pressing tools are heated, preferably to above 100 ° C, and must have a very smooth surface, so that deposits that are formed by residues of the wood-based panels on the pressing tools are highly undesirable.
  • the above-mentioned method and the above-mentioned pressing device can also be used in the production of almost arbitrarily shaped, possibly small-particle moldings used under the action of temperature and pressure be pressed to obtain the desired spatial shape of the moldings.
  • These methods or devices serve in particular the processing of mixtures of at least one wood material and at least one plastic.
  • thermoplastics are used as plastic.
  • plastics can be waived in the corresponding methods and devices but also. It is essential that when pressing the moldings to residues and thus deposits on the working surfaces of the pressing tools, which lead to undesirable effects.
  • the deposits formed by the residues on the pressing tools accumulate over time and form an increasingly thicker and mostly uneven layer on the pressing tools.
  • the deposits hinder the heat transport from the pressing tool to the coating with increasing layer thickness in heated pressing tools, which is why either the hardening of the workpieces can be incomplete or must be pressed longer.
  • resulting from the resulting as a result of deposits unevenness of the pressing tool Restrictions on the smoothness and gloss of the surfaces to be produced.
  • the pressing tools can be cleaned manually, for example, by means of certain cleaning agents, which is labor-intensive and time-consuming and thus causes high costs.
  • there is a mechanical stress on the surface which leads to reduced service life of the pressing tools.
  • An alternative method of cleaning the pressing tools is to press them with a special foil to which the deposits partly adhere. The efficiency of this cleaning method is low.
  • brush rollers or bristle belts are used to remove the deposits on the pressing tools, which in turn leads to increased wear of the pressing tools and a reduction in the gloss level of the surface of the pressed coating.
  • the present invention is therefore based on the technical problem of proposing a method and a pressing device of the type mentioned, with which removes deposits on a pressing tool reliably and inexpensively can be, without causing increased wear of the pressing tool.
  • the invention is therefore based on the idea that the pressing tools can be specifically cleaned by laser beams, whereby energy can be deliberately introduced into the deposits by the laser radiation, so that the deposits evaporate and thus also possibly lead to a flaking off of adjacent deposits.
  • damage to the pressing tools can be avoided, which is why no or only a very minimal wear on the pressing tools through the use of the laser system must be taken into account.
  • a liquid detergent and its handling can be saved, which also prevents contamination of the working environment.
  • the deposits may either be residues of an adhesive used or a component of the coating used, preferably a resin such as a condensation resin.
  • the deposits may have outgassings of the pressed workpiece. This is particularly in the pressing of a wood-based panel or a coated wood-based panel into consideration, the outgassing are then preferably ingredients of the wood material used.
  • the deposits eventually become partly due to residues of a coating or impregnation, which are preferably residues of a resin, Residues of an adhesive, outgassing formed either of the wood material, the coating, the impregnation or the adhesive and / or reaction products of the aforementioned components.
  • the device is provided to perform the cleaning of the pressing tools in the pressing device. An expansion of the pressing tools is then not required. If necessary, the removal of the deposits can also be carried out during the operation of the pressing device. This can be done when / where the work surface is not in contact with the workpiece.
  • the laser system is provided such that it allows the irradiation of a certain area of the working surface with the laser beam generated by the laser system.
  • the energy of the laser beam is absorbed by the deposits, which leads to their removal.
  • the method is provided according to the inventive device for producing a workpiece in the form of a wood-based panel, a coated wood-based panel, a laminate and / or a compact board, wherein the workpiece is pressed in a pressing device with at least one pressing tool, wherein the working surface of the pressing tool during pressing is brought into contact with the workpiece and wherein the working surface is irradiated in the pressing device with the laser beam generated by the laser system.
  • pressing is also understood to mean smoothing of the workpiece surface, in which case considerable pressure can also be exerted on the workpiece.
  • the removal of the deposits on the pressing tools in the pressing device has the advantage that an expansion of the pressing tools is omitted and thus an unnecessary system downtime can be avoided. This also makes automated operation possible.
  • a certain smoothness of the working surface of the pressing tool and thus, if necessary, a predetermined degree of gloss of a coating can be maintained over a longer period of time, in particular during pressing of the coated wood-based panel.
  • the service life of the pressing tool can be increased in this way.
  • the removal of the deposits with the laser beam of the laser system leads at best to a minimal impairment of the working surface, so that far longer service life of the pressing tool can be achieved without restrictions, for example, with regard to the gloss level of the coated wood-based panel or their coating are accepted would.
  • Glued chips and / or fibers can first be layered and then the layer of chips or fibers can be pressed into a wood-based panel. Depending on the layer of chips and / or fibers used, for example, it is pressed into chipboard, Oriented Strand Boards (OSB) or medium density fiberboard (MDF) and high density fiberboard (HDF). All these wood-based panels are suitable because of their mechanical properties, for example, for the furniture or flooring production. When pressing the adhesive or glue cures, so that a stable wood-based panel is obtained. The deposits consist predominantly but not necessarily outgassing of the wood material and residues of the adhesive. These are then removed in the pressing device or in the expanded state of the pressing tools by the laser beam. As a result, the production of high-quality particleboard or fiberboard ultimately cost possible.
  • OSB Oriented Strand Boards
  • MDF medium density fiberboard
  • HDF high density fiberboard
  • a mixture of at least one wood material and at least one plastic for the production of wood-based panels ie in this case WPC boards (Wood Plastic Composite), are used, which offer in particular thermoplastics due to the good processability at high temperatures.
  • WPC boards Wood Plastic Composite
  • wood-based materials wood chips and / or wood fibers come into question in particular because of the good mechanical properties.
  • It may also be material plates of a mixture of at least one plastic and at least one other lignocellulose-containing material than wood, such as straw, be made. Also in this case can be obtained efficiently and inexpensively Holzwerstoffplatten or material plates in high quality by compression.
  • a coated wood-based panel is produced, wherein the deposits can have adhesive residues, residues of the coating, outgassing of, for example, the wood-based material and / or reaction products of the named components, which are then removed by the laser beam in the installed state in the pressing device. Consequently, if necessary, coated wood-based panels can be produced inexpensively with a high surface quality. This is especially important for coated wood-based panels for furniture production.
  • an impregnated paper or a plurality of laminated impregnated papers may be used for a direct coating.
  • the least an impregnated paper is not or only slightly cured before coating. The curing is essentially initiated by the pressing.
  • a direct coating can thus be used, for example, at low cost and at the same time high quality in furniture or floor panel production.
  • a laminate which consists of at least one layer of an impregnated paper can also be used as the coating of the wood-based panel.
  • any number of layers impregnated papers in which, for the sake of simplicity, no distinction is made between papers, woven or nonwoven fabrics, to form a laminate.
  • the laminate as such is preferably already pressed and thus in any case precured.
  • the laminate may, for example, a decorative paper and, if necessary, still have an overlay paper to protect the decorative paper.
  • wood-based panels can be coated cost-effectively and with high quality with laminates, for example for the production of floor panels.
  • the wood-based panel or other substrate is coated with a film, which is commonly referred to as laminating.
  • the pressing device for pressing the film is formed, which can form residues during pressing and / or can be on the substrate to which the film is laminated on returning residues up to the working surface of the pressing tool.
  • the laminate comprises predominantly at least one core layer and a decorative layer.
  • Each of these layers may be formed by an impregnated, compressed paper, wherein the impregnation for a core layer preferably comprises a phenolic resin and the impregnation for a decorative layer preferably comprises a melamine resin.
  • a coated wood-based panel can also be produced by compression with a laminate. Since the laminate only fully hardens, deposits are produced on the working surfaces of the pressing tools, which can be easily removed by means of a laser beam.
  • the impregnation for the papers and / or pulp webs and thus possibly for the coating itself preferably has a condensation resin. Due to their mechanical and chemical properties, preference is given in particular to urea resins (UF), melamine resins (MF) and / or phenol resins (PF). In principle, however, other resins are also conceivable which cure at elevated pressure and optionally additionally at elevated temperature. These resins are difficult to remove by conventional methods because of high adhesion forces.
  • the impregnations mentioned are particularly preferred in the production of coated Wood-based panels, laminates and compact panels are used.
  • the pressing tool used has a metallic and heatable and optionally additionally structured working surface. On heated work surfaces there is a rapid hardening of the residues or deposits, so that removal was previously difficult. Also, the removal of textured work surfaces can done much better with the laser beam than with other methods, as it can penetrate into very small structures without destroying these structures.
  • the laser system is characterized in a further embodiment of the pressing device and the method by the delivery of pulsed laser beams.
  • the energy of the laser radiation is selectively released in individual short pulses, so that a spontaneous local evaporation of deposits is ensured.
  • the laser system is preferably designed in such a way that the pulse lengths of the laser radiation are less than 1 ⁇ s, more preferably a few ns (10 -9 s). Because of the short exposure times of the individual pulses, there is overall only a small heat input and no large-scale heating of the pressing tool.
  • laser beams having wavelengths predominantly absorbed by the deposits are used.
  • the majority of the radiation energy it being particularly expedient for the laser radiation to be absorbed essentially completely by the deposits due to its wavelength.
  • the wavelength of the laser beams is alternatively or additionally chosen so that they are predominantly reflected by the working surface of the pressing tool.
  • the majority of the radiation energy is radiated directly in this way, without the Radiation energy can lead to heating or even damage to the work surface. It is particularly appropriate in this context if the laser radiation as a result of the wavelength is substantially completely reflected by the working surface. Then, the radiation intensity can be increased or the radiation can be left on the work surface for longer, without resulting in local damage to the working surface.
  • the working surface is made of a metallic material, so that a high degree of reflection of the laser radiation can be achieved.
  • the laser system may be stationary provided on the pressing device. This means that the As such, the laser system does not move during operation.
  • the laser system is merely tilted, pivoted, or otherwise directed one at a time to different areas of the work surface of the press tool, if at all, so that the work surface as a whole can be cleaned.
  • This solution is structurally simple.
  • the laser system can also be moved during operation of the pressing device as such relative to the pressing device and / or relative to the pressing tool.
  • the laser system moves back and forth in the vicinity of the pressing space. In a clocked pressing device, this movement is matched with the cycle of the pressing tool.
  • the press belt may preferably be a belt of a double belt press.
  • the press belts are arranged parallel to each other and include a press nip between each other. This allows, for example, a two-sided coating of a wood-based panel with high quality. In the case of floor panels can be provided in this way without further simultaneously with a decorative layer a Gegenzug Mrs on the opposite side of the wood-based panel.
  • the use of a press belt also makes it possible in general to direct the laser beam onto a run of the press belt, whereby the press belt then moves independently relative to the laser beam, without the laser system must be moved. Thus, in any case, the deposits can be removed via a strip of the press belt.
  • a laser system can be used whose laser beam can irradiate the entire width of the press plate.
  • Several laser systems can be provided side by side.
  • the laser beam of a laser system is moved stepwise or continuously perpendicular to the direction of movement of the strand, ie transverse to the strand. It is understood that preferably the press belt is acted upon at a location with the laser beam at which the press belt is not in contact with the workpiece. If necessary, the laser beam hits the press belt in the inlet area or in the outlet area.
  • the laser system can be moved back and forth in a plane parallel to the section of the pressing tool to be machined and / or to the run of the pressing belt to be processed. In this way, all sections of the working surface, including wider pressing belts, can be successively cleared of deposits. In this case, the movement of the laser system can take place longitudinally and / or transversely to the respective pressing tool or the working surface to be machined, that is to say either in one or in two spatial directions.
  • the pressing tool is heated. This does not lead to problems when cleaning the working surface, since the cleaning with a laser steel can be carried out without contact.
  • pressing tools with a structured working surface can also be used in the method and in the pressing device.
  • the working surface of these pressing tools is not completely flat, but has a structure that transfers to the workpiece during pressing. This is especially true Pressing coated wood-based panels of importance, in order to achieve a good look of the surface in this way.
  • wood decors are mostly used.
  • a profiled work surface of pressing tools in the form of molded parts which has a pronounced spatial profile, can also be structured with. Since appropriate work surfaces for residues and deposits provide a particularly good grip, here a material-friendly and reliable removal of deposits is particularly preferred.
  • a pressing device 1 in the form of a double belt press, in which two press belts 2,3 are endlessly guided around each two pulleys 4,5.
  • the pressing belts 2, 3 are arranged parallel to one another, with the mutually facing trunks 6, 7 of the two pressing belts 2, 3 having parallel transport directions and defining a gap 8 which is slightly narrower than the wood-based panels 9 together with the coatings 10, 11 before the pressing ,
  • the wood-based panels 9 together with the coatings 10, 11 run from the side shown on the right into the pressing device 1 are detected by the press belts 2, 3, transported by the pressing device 1 and discharged on the side shown on the left, wherein the coatings 10, 11 are substantially cured on leaving the pressing device 1.
  • a separate coating 10,11 is pressed in the pressing device 1 on both sides of the wood-based panel 9, wherein the coatings 10,11 may be impregnated papers or laminates.
  • the gap 8 Between the two pulleys 4, 5 of each press belt 2, 3, there are provided for the gap 8 assigned means 12, 13 for providing and equalizing the contact pressure, each of which acts on a run 6 assigned to the gap 8.
  • the respective other run 14, 15 of each press belt 2, 3 is assigned a laser system 16, 17 in a manner such that a pulsed laser beam 18 strikes a part of the work surface between the two guide rollers 2, 3.
  • the pulsed laser radiation 18 is in any case partially absorbed by the deposits adhering to the press belt 2, whereby the absorbed laser radiation converts almost directly into thermal energy, so that the deposits spontaneously evaporate in locally limited areas as a result. If the laser radiation hits directly on the work surface, it will be reflected so much that no damage to the working surface will occur.
  • the laser systems 16, 17 are moved back and forth transversely to the transport direction of the press belts 2, 3 so that all areas of the work surface are gradually irradiated with the laser radiation 18 and thus cleaned. If such a cleaning cycle is completed, this is followed by another cleaning cycle, as deposits are formed continuously during continuous process control.
  • the displacement of the laser systems 16, 17 transverse to the transport direction of the respective press belt 2, 3 is especially in the Fig. 2 shown, which shows the double belt press from a front view.
  • FIG. 3 to 5 1 schematically shows a discontinuous pressing device 20 not covered by the invention.
  • the pressing device 20 has two pressing plates 21, 22 which are adjustable relative to each other.
  • the press plates 21,22 drive in the in the Fig. 3 illustrated operating state of the pressing device 20 apart, while the last pressed workpiece in the form of a coated wood-based panel 23 is still in a press room 24 between the two press plates 21,22.
  • Partially inserted into the baling chamber 24 is a device 25, which grips the last pressed and thus coated wood-based panel 23.
  • the wood material panel 26 to be subsequently pressed together has already been gripped together with the coating not shown in detail and is thus moved in the direction of the pressing space 24. Since the coating is not yet firmly connected to the still to be pressed wood material panel 26, the still to be pressed wood-based panel 26 is preferably held laterally.
  • a laser system 27 is mounted, which is also moved in the direction of the pressing space 24.
  • the device is 25, as in Fig. 4 represented, further driven to the left and are the last pressed, coated wood-based panel 23 outside of the pressing chamber 24 free.
  • the wood-base plate 26 to be subsequently pressed together with the coating is released from the device 25, specifically in the press space 24 between the press plates 21, 22.
  • the laser system 27 has also moved into the pressing space 24 and has already freed at least one of the pressing plates 21, 22 at least in sections when passing through the pressing space 24 from deposits. If the laser system 27 is mounted outside of the wood-based panels 23, 26, the laser unit 27 can theoretically direct a laser beam onto the upper press panel 21 and a further laser beam onto the lower press panel 22. This can be done simultaneously or at different times. For example, in one cycle, the laser beam may be directed to the upper press plate 21 and, in a subsequent cycle, to the lower press plate 22. As an alternative, however, other laser systems may also be provided.
  • the device 25 is moved together with the laser system 27 after the separation of the wood-based panels 23,26 to the right from the press room 24 to take a new, yet to be pressed wood-based panel and bring in the next cycle in the press room 24. Since the laser system 27 reciprocates at each cycle, each time different areas of the working surface of the at least one press plate 21, 22 can be cleared of deposits. When the laser beam has reached each area of the working surface of the at least one pressing plate 21, 22, it is again brought into an initial position, after which the cleaning begins again.
  • the laser system 27, so that each area of the work surface can be easily reached is arranged perpendicular to the direction of movement of the device 25 on this.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Claims (10)

  1. Procédé pour enlever des dépôts sur une surface de travail d'un outil de compression (2, 3) d'un dispositif de compression (1) pour la compression d'une pièce sous la forme d'un panneau de matériau dérivé du bois, d'un panneau enduit de matériau dérivé du bois (9), d'un stratifié et/ou d'un panneau compact, pour sa fabrication,
    - l'outil de compression (2, 3) étant conçu sous la forme d'une bande comprimée,
    - dans lequel, avec une surface de travail, chauffée et métallique, de l'outil de compression soit
    a) une pièce est fabriquée sous la forme d'un stratifié et/ou d'un panneau compact ou
    b) des copeaux collés, des fibres collées et/ou des mélanges comprenant au moins un matériau dérivé du bois et au moins une matière synthétique sont comprimés pour former un panneau de matériau dérivé du bois et/ou
    c) un panneau de matériau dérivé du bois est enduit par compression avec un revêtement (10, 11) sous la forme d'au moins un film, d'un papier imprégné et/ou d'un stratifié,
    - dans lequel la surface de travail est irradiée avec un faisceau laser (18) généré par un système laser (16, 17),
    - dans lequel l'outil de compression est déplacé de façon autonome par rapport au faisceau laser sous la forme d'une bande comprimée, sans que le système de laser doive être déplacé, et
    - dans lequel des dépôts s'accrochant à la surface de travail sont déposés par le faisceau laser (18) par évaporation de dépôts.
  2. Procédé selon la revendication 1,
    - dans lequel la pièce (9) est comprimée dans un dispositif de compression (1) avec au moins un outil de compression (2, 3),
    - dans lequel la surface de travail de l'outil de compression (2, 3) est amenée en contact avec la pièce (9, 23, 26) lors de la compression,
    - dans lequel la surface de travail est irradiée dans le dispositif de compression avec le faisceau laser (18) généré par le système laser (16, 17).
  3. Procédé selon la revendication 1 ou 2,
    dans lequel des copeaux collés, des fibres collées et/ou des mélanges comprenant au moins un matériau dérivé du bois et au moins une matière synthétique sont comprimés pour former un panneau de particules, un panneau OSB ou un panneau de fibre, en particulier un panneau de fibre de densité moyenne (MDF) ou un panneau de fibre de densité élevée (HDF).
  4. Procédé selon l'une des revendications 1 à 3,
    dans lequel un papier de décor et/ou un papier de recouvrement est enduit comme papier imprégné.
  5. Procédé selon l'une des revendications 1 à 4,
    dans lequel un revêtement (10, 11) ou une imprégnation contenant une résine, de préférence une résine d'urée (UF), une résine de mélamine (MF) et/ou une résine de phénol (PF).
  6. Procédé selon l'une des revendications 1 à 5,
    dans lequel des dépôts sont enlevés de la surface de travail d'un outil de compression se présentant sous la forme d'une presse à double bande.
  7. Procédé selon l'une des revendications 1 à 6,
    dans lequel le système laser (16, 17) génère un faisceau laser (18) pulsé avec des longueurs d'impulsion de moins de 1 µs et/ou un faisceau laser (18) avec une puissance de laser de 80 à 120 watts.
  8. Dispositif de compression (1) pour la fabrication d'une pièce, sous la forme d'un panneau de matériau dérivé du bois, d'un panneau enduit de matériau dérivé du bois (9), d'un stratifié et/ou d'un panneau compact pour la mise en oeuvre du procédé selon l'une des revendications 1 à 7,
    - comprenant au moins un outil de compression (2, 3) pour la compression de la pièce (9),
    - le au moins un outil de compression (2, 3) étant conçu sous la forme d'une bande de compression et présentant une surface de travail métallique, chauffée, venant en contact avec la pièce lors de la compression,
    caractérisé
    - en ce qu'un système laser (16, 17) est prévu, de telle sorte que l'outil de compression sous la forme d'une bande de compression se déplace de façon autonome par rapport au faisceau laser, sans que le système laser doive être déplacé,
    - en ce que le système laser (16, 17) est équipé pour irradier la surface de travail avec un faisceau laser (18),
    - en ce que le système laser (16, 17) est conçu pour délivrer un faisceau laser (18) approprié pour enlever des dépôts s'accrochant à la surface de travail par vaporisation des dépôts.
  9. Dispositif de compression selon la revendication 8,
    caractérisé en ce que
    l'outil de compression est une presse à double bande.
  10. Dispositif de compression selon la revendication 8 ou 9,
    caractérisé en ce que
    l'outil de compression présente une surface de travail métallique, une surface de travail structurée et/ou une surface de travail profilée.
EP09749885A 2008-05-23 2009-05-20 Dispositif de presse, et procédé d'élimination de dépôts sur un outil de presse Active EP2296832B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09749885T PL2296832T3 (pl) 2008-05-23 2009-05-20 Urządzenie do prasowania oraz sposób usuwania osadów na przyrządzie do prasowania tworzyw

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008024799.5A DE102008024799B4 (de) 2008-05-23 2008-05-23 Pressvorrichtung sowie Verfahren zum Entfernen von Ablagerungen an einem Presswerkzeug
PCT/EP2009/056173 WO2009141395A1 (fr) 2008-05-23 2009-05-20 Dispositif de presse, et procédé d'élimination de dépôts sur un outil de presse

Publications (2)

Publication Number Publication Date
EP2296832A1 EP2296832A1 (fr) 2011-03-23
EP2296832B1 true EP2296832B1 (fr) 2012-10-03

Family

ID=40941213

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09749885A Active EP2296832B1 (fr) 2008-05-23 2009-05-20 Dispositif de presse, et procédé d'élimination de dépôts sur un outil de presse

Country Status (6)

Country Link
EP (1) EP2296832B1 (fr)
DE (1) DE102008024799B4 (fr)
ES (1) ES2397066T3 (fr)
PL (1) PL2296832T3 (fr)
PT (1) PT2296832E (fr)
WO (1) WO2009141395A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013114706B4 (de) * 2013-12-20 2017-02-16 Sandvik Surface Solutions Division Of Sandvik Materials Technology Deutschland Gmbh Reinigung von Pressblechen oder umlaufenden Pressbändern

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3139581A1 (de) * 1981-10-05 1983-06-01 Maschinenfabrik J. Dieffenbacher Gmbh & Co, 7519 Eppingen "vorrichtung fuer den pressblechwechsel in einer heisspresse"
DE4021341A1 (de) * 1990-07-04 1992-01-16 Hymmen Theodor Gmbh Verfahren und vorrichtung zum kontinuierlichen oder diskontinuierlichen herstellen von ebenen, plattenfoermigen mehrschichtigen werkstoffen, laminaten o. dgl.
DE4033230A1 (de) * 1990-10-19 1992-04-23 Hueck Fa E Oberflaechenstrukturierte, grossformatige metallene pressplatten und/oder endlosbaender und verfahren zu deren herstellung
DE4241575A1 (de) * 1992-12-10 1994-06-16 Baldwin Gegenheimer Gmbh Verfahren und Vorrichtung zum kontaktfreien Entfernen von Schmutz von Gegenständen, insbesondere von Druckmaschinen-Zylindern
US5373140A (en) * 1993-03-16 1994-12-13 Vernay Laboratories, Inc. System for cleaning molding equipment using a laser
DE29915410U1 (de) * 1999-09-02 1999-12-09 Wesero Maschinenbau Gmbh Vorrichtung zum Abtragen von Harzrückständen an einem metallischen Pressblech
JP2002240125A (ja) * 2001-02-15 2002-08-28 Mitsubishi Paper Mills Ltd 冷却ロールの清掃方法及びそれに用いる清掃装置
DE102004037215A1 (de) 2004-07-30 2006-03-23 Voith Paper Patent Gmbh Verfahren zur Reinigung der Oberflächen von Walzen
SG143180A1 (en) 2006-11-22 2008-06-27 Apic Yamada Corporaton Resin molding machine and method of resin molding

Also Published As

Publication number Publication date
DE102008024799B4 (de) 2016-11-10
EP2296832A1 (fr) 2011-03-23
DE102008024799A1 (de) 2009-11-26
ES2397066T3 (es) 2013-03-04
PL2296832T3 (pl) 2013-04-30
PT2296832E (pt) 2013-01-15
WO2009141395A1 (fr) 2009-11-26

Similar Documents

Publication Publication Date Title
DE202009009253U1 (de) Mit einem Kantenband versehene plattenförmige Werkstücke
EP2829415A1 (fr) Procédé de fabrication d'un panneau mural et de sol décoré
DE19718771A1 (de) Verfahren und Anlage zur Herstellung von Holzwerkstoffplatten
DE102012100800B4 (de) Verfahren zum Imprägnieren von Werkstoffplatten, imprägnierte Werkstoffplatte und Anlage zur Herstellung einer imprägnierten Werkstoffplatte
EP2241426B1 (fr) Procede de fabrication d'un panneau de fibres ä bois
EP3132945B1 (fr) Procede de fabrication d'un panneau mural ou de sol decore
EP3587108B1 (fr) Panneau sandwich contrecollé
EP2296832B1 (fr) Dispositif de presse, et procédé d'élimination de dépôts sur un outil de presse
WO2012093090A2 (fr) Procédé et dispositif permettant d'agir de manière ciblée sur les propriétés technologiques de différentes zones d'un matériau en forme de plaque, d'une nappe de matériau pré-compressée ou d'une masse fibreuse
DE102009032153A1 (de) Verfahren zur Herstellung einer Schichtstoffverbundplatte
DE102014104760A1 (de) Schichtstoff und Verfahren zu dessen Herstellung
EP2274176B1 (fr) Panneau en bois reconstitué comportant un revêtement laminé brillant et procédé de fabrication d'un tel panneau
EP1556456B1 (fr) Procede de production de bois colle a courtes etapes
EP3088204A1 (fr) Procédé de fabrication d'un panneau mural ou de sol décoré
EP3568298A1 (fr) Procédé de fabrication d'un stratifié pour un revêtement de sol
EP1880816B1 (fr) Procédé destiné à déformer une zone de plaques en matériau dérivé du bois et dispositif correspondant
EP4069482A1 (fr) Appareil et procédé de revêtement d'une surface d'une pièce
WO2004087388A1 (fr) Dispositif et procede de vaporisation
WO2005009702A1 (fr) Procede et dispositif pour produire des panneaux en materiau derive du bois
EP3653353B1 (fr) Dispositif et procédé de revêtement d'une pièce
DE102013010108B4 (de) Verfahren zur Herstellung eines bemaßten Materials, insbesondere einer Furnierschichtholzplatte
DE102004038342A1 (de) Verfahren der Formgebung und Erwärmung eines zusammengepressten Verbunderzeugnisses
EP3088205A1 (fr) Procédé de fabrication d'un panneau mural ou de sol décoré
EP2093054B1 (fr) Installation et procédé pour le revêtement sans désalignement de pièces de support à chambre creuse et de pièces de support massives à l'aide de systèmes de colle à plusieurs composants
EP4005757A1 (fr) Procédé et installation de fabrication de panneaux de matière

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20101112

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

17Q First examination report despatched

Effective date: 20110429

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 577729

Country of ref document: AT

Kind code of ref document: T

Effective date: 20121015

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502009004972

Country of ref document: DE

Effective date: 20121129

REG Reference to a national code

Ref country code: RO

Ref legal event code: EPE

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20121226

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: TROESCH SCHEIDEGGER WERNER AG, CH

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: TROESCH SCHEIDEGGER WERNER AG, CH

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121003

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2397066

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20130304

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20121003

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121003

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121003

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130103

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130203

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121003

REG Reference to a national code

Ref country code: PL

Ref legal event code: T3

REG Reference to a national code

Ref country code: SK

Ref legal event code: T3

Ref document number: E 13505

Country of ref document: SK

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121003

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130104

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121003

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121003

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130103

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20130704

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502009004972

Country of ref document: DE

Effective date: 20130704

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121003

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121003

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130520

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121003

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121003

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20090520

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SK

Payment date: 20220516

Year of fee payment: 14

Ref country code: SE

Payment date: 20220523

Year of fee payment: 14

Ref country code: RO

Payment date: 20220517

Year of fee payment: 14

Ref country code: PT

Payment date: 20220421

Year of fee payment: 14

Ref country code: LU

Payment date: 20220523

Year of fee payment: 14

Ref country code: LT

Payment date: 20220511

Year of fee payment: 14

Ref country code: IT

Payment date: 20220523

Year of fee payment: 14

Ref country code: GB

Payment date: 20220523

Year of fee payment: 14

Ref country code: FR

Payment date: 20220523

Year of fee payment: 14

Ref country code: ES

Payment date: 20220614

Year of fee payment: 14

Ref country code: DE

Payment date: 20220523

Year of fee payment: 14

Ref country code: CZ

Payment date: 20220516

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20220511

Year of fee payment: 14

Ref country code: PL

Payment date: 20220511

Year of fee payment: 14

Ref country code: CH

Payment date: 20220523

Year of fee payment: 14

Ref country code: BE

Payment date: 20220523

Year of fee payment: 14

Ref country code: AT

Payment date: 20220523

Year of fee payment: 14

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502009004972

Country of ref document: DE

REG Reference to a national code

Ref country code: LT

Ref legal event code: MM4D

Effective date: 20230520

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

REG Reference to a national code

Ref country code: SK

Ref legal event code: MM4A

Ref document number: E 13505

Country of ref document: SK

Effective date: 20230520

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 577729

Country of ref document: AT

Kind code of ref document: T

Effective date: 20230520

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230520

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20230520

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20230531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230520

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230521

Ref country code: RO

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230520

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231120

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230520

Ref country code: LT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230520

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230531

Ref country code: CZ

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230520

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230531

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230520

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230520

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231201

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230520