EP0744260B1 - Procédé et appareil pour usiner en continu des pièces en bois poreux, et en particulier les bords - Google Patents

Procédé et appareil pour usiner en continu des pièces en bois poreux, et en particulier les bords Download PDF

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Publication number
EP0744260B1
EP0744260B1 EP96107596A EP96107596A EP0744260B1 EP 0744260 B1 EP0744260 B1 EP 0744260B1 EP 96107596 A EP96107596 A EP 96107596A EP 96107596 A EP96107596 A EP 96107596A EP 0744260 B1 EP0744260 B1 EP 0744260B1
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EP
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Prior art keywords
station
hot
edge
grinding
feed
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Expired - Lifetime
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EP96107596A
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German (de)
English (en)
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EP0744260A1 (fr
Inventor
Kurt Kalmbach
Johannes Schmid
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Homag Maschinenbau AG
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Homag Maschinenbau AG
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    • 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

Definitions

  • the invention relates to a method and an apparatus for Continuous processing of essentially flat or strip-shaped workpieces made of open-pore wood-based materials and the same.
  • German patent DE 16 53 240 C3 Device explained with the porous chipboard in Edge area to increase, for example Screw strength can be consolidated.
  • a Solidifying agent from a press-in chamber under pressure into the porous edge of the workpiece pressed.
  • German patent DE 40 28 166 C2 also strikes Method and device for solidifying chipboard in the edge area in which a solidifying agent is used individual nozzles is injected into the edge area.
  • German published specification fails DE-OS 23 61 434 a method before to the rough and grained cut surface of a plate-shaped workpiece Presswood, plywood or the like a smooth finish without creating pores. This will make one layer Plastic, polyurethane or synthetic resin on the pores edge to close the pores and structurally solidify them.
  • automatic order of the sealing material is the injection of the material into Shapes with the contour of the workpiece are proposed. After Drying or curing of the applied sealing material there is grinding or surface smoothing. Because of this Processes are said to be made with solidified and smooth edges without using if necessary, profiled edge timbers, Veneer sheet materials and the like can be obtained.
  • the invention is based on the technical problem To create method and an associated device with which is a comparatively simple one continuous processing and remuneration of open pores Wood materials and the like in the edge area is possible.
  • continuous processing is in the Edge area of flat, strip-shaped or similar Workpieces made of open-pore wood-based materials and the like provided in which in a workpiece pass, i.e. with the same workpiece clamping, machining the Workpiece in the edge area by milling and / or grinding, a subsequent application of a hot compensation compound on the edge area and subsequent hot filling the applied coating compound is carried out with one or more doctor elements.
  • the or the doctor elements are in the direction of the Workpiece at an acute angle to the edge of the machined workpiece.
  • the Hot filler ensures an even penetration of the applied compensation mass in the on the edge of the Pores in the workpiece. Furthermore, the Hot filling the material consumption to be applied Compensation mass minimized and the surface that the Workpiece edge after passing through the hot filler step is already of comparatively high quality, i.e. comparatively smooth.
  • the application and hot filling of the coating compound during of the run repeated one or more times.
  • Words occur with the same clamping of the workpiece a gradual application and hot filling of the Compensation mass.
  • repeated application and This can be done by hot filling of the coating compound Processing step, for example, in a pre-payment and to split a final remuneration.
  • the hot filler is followed by the Compensation compound a grinding processing step, e.g. on Fine grinding.
  • a grinding processing step e.g. on Fine grinding. This will make the surface of the tempered Edge smoothed further and possible protrusions of the applied remuneration measures are eliminated. If that Apply and heat fill the coating compound gradually every hot filler step Grinding processing step.
  • Another embodiment of the method according to the invention consists of adding a second remuneration component to apply the remuneration measures.
  • this second Compensation component that may apply to the finely ground compound, it can is similar to the first compensation mass, however differently composed remuneration or one Act paint or the like.
  • a different composition Compensation compound could contain, for example, color pigments, to color the outermost layer accordingly design while, for example, with a paint Surface quality can also be improved.
  • the process is another, subsequent in the run Processing step of the workpiece is a paint job provided for drying with ultraviolet Irradiation and grinding follows.
  • a paint job provided for drying with ultraviolet Irradiation and grinding follows.
  • the process consists of another during the run Processing step to connect a hot stamping in which for example, a thin decorative paper film is embossed.
  • Hot stamping can, for example, directly affect the Connect processing step of tempering, or else to the processing step of painting.
  • Another preferred embodiment of the method closes during gluing as a further processing step with a coating material, e.g. a thin one Decorative paper, on.
  • a coating material e.g. a thin one Decorative paper
  • According to the invention can thus be in a continuous Passage of the workpiece with the same Machining workpiece clamping the edge area, from Profiling, tempering, painting and / or Hot stamping or gluing with a coating material.
  • thermoplastic compound a thermoset mass or one to a thermoset hardening thermoplastic mass
  • it can be a moisture-curing polyurethane system.
  • the mass used should preferably be within a relative narrow temperature range from a hot phase to a Cold phase, such that the remuneration measures in their Hot phase is easy to spread and in continuous Pass applied to the edge area and hot can be filled, and then the remuneration mass after cooling by a comparatively low one Temperature difference, i.e. after a comparatively short Reaches the cold phase in which the workpiece passes further processing steps, e.g. one Fine grinding, can be subjected. So they can Processing steps of profiling, tempering and Painting and / or hot stamping or gluing with one Coating material on a short passage of the Workpiece can be connected in series.
  • the method according to the invention thus enables a complete Machining in the edge area of workpieces from open-pore Wood materials and the like with a workpiece clamping in one pass.
  • An inventive device for performing the Method according to claim 1 has a clamping device, which holds the respective workpiece during the run, and Machining stations for continuous machining are arranged one behind the other, namely a milling and / or Grinding station, an order station for the remuneration mass and a hot filler station with one or more doctor elements, which point in one direction in the direction of the workpiece Angle to the edge of the workpiece to be machined are employed and the previously applied hot one Compensation mass when passing through the workpiece press evenly into the pores of the edge area.
  • a milling and / or Grinding station as profile milling and / or profile grinding station trained if the workpiece is not a flat, but a should receive profiled edge surface.
  • the application station for the Compensation mass as nozzle, roller, transfer belt application unit or the like. Accordingly, the hot Compensation mass either via nozzles, from an application roller or continuously from a transfer belt to the Edge area applied. Since with the order station, in Contrary to conventional devices that a Solidification agent with complex injection chambers stationary press into the edge under pressure, the hot coating compound can only be applied to the edge area Application station very compact and comparatively simple be trained and work in a continuous process.
  • the hot filler station made up of one or more heated doctor elements around the edge profile of the workpiece to be machined are arranged.
  • the heated doctor elements are so spatially grouped around the edge profile to be processed, that the previously applied hot coating compound at Passage of the workpiece from the doctor elements evenly is pressed into the pores of the edge area.
  • the doctor elements are heated so that the Compensation compound retains its good spreadability and so for one penetrates well into the pores and the other one relatively smooth surface.
  • the doctor elements are favorably in the direction of flow in at an acute angle to the edge of the material to be machined Workpiece.
  • This angle of attack of the doctor elements in relation to the workpiece edge to be machined preferably adjustable. Similar to a snow plow is on the edge of the workpiece on the doctor elements passed hot remuneration mass from the doctor elements in the pores of the workpiece edge to be closed are steered and in pressed this in.
  • the angle of attack for example, be set flatter from level to level or otherwise varied.
  • the doctor elements are preferably designed as spatula blades in their geometric shape e.g. to a profile of the machining workpiece edge are adapted.
  • edge treatment e.g. in an advance payment on a first Order and a first hot filler station and in one Final remuneration on a second order and a second Hot filler station can be divided.
  • various Compensation components successively on the edge area of the to be machined workpiece. For example, a first amount of remuneration can second, colored or otherwise in their composition modified compensation component are applied.
  • At least the in Direction of flow last hot filler station one Subordinate grinding station. If only one order station and a hot filler station within the device is provided, e.g. a fine grinding station downstream. In the case of several in a row arranged application and hot filler stations can at Every hot filler station needs a sanding station be subordinate.
  • Device is within the device Processing stations arranged a painting station to which one with ultraviolet emitters or others Drying facilities working drying station as well connect a grinding station.
  • the processing stations to arrange a hot stamping station within the device, with, for example, decorative paper foils on the Workpiece edge are embossed.
  • the hot stamping station can either directly to the hot filler station or one connect downstream grinding station or to Painting station with downstream drying and Grinding station. In the latter case, the surface quality the tempered edge by painting before hot stamping be further improved.
  • a gluing station for coating within the device subordinated with a coating material.
  • This too Gluing station can contact the Hot filler station or a downstream sanding station or to a painting station with drying and grinding station connect, depending on whether a paid or a additionally painted edge surface as a prerequisite for the subsequent coating, e.g. with a thin one Decorative paper, is required.
  • Workpieces can be made with the device according to the invention open-pore materials in the edge area with one and same clamping completely from the profiling over the Remuneration up to painting, hot stamping for example with decorative paper foils or gluing Decorative papers are processed. Because of the compact Processing stations and the short required The entire device can be kept through short paths become what an inexpensive and space-saving machine results. Due to the wide processing parameters of the The device according to the invention is high System availability guaranteed. Thanks to short changeover times individual processing stations can also handle small batch sizes of workpieces inexpensively and quickly with the device according to the invention are processed. With the Methods according to the invention can in particular be very thin Decorative papers and other very thin coating materials on the edge of an open-pore wood-based material or the like, e.g. a chipboard, in good quality be applied.
  • Fig. 1 is a flat wooden workpiece 1, for example a chipboard, shown, which is an open-pore Has cutting edge 5, which is to be remunerated.
  • the Workpiece 1 is in a workpiece chuck (not shown) clamped and moves in with this Direction of travel (see arrow) of the processing machine.
  • a heated spatula blade 4 is arranged at a distance.
  • the Spatula blade 4 closes with the workpiece edge 5 acute angle ⁇ .
  • the reference number 3 is one Compensation mass marked with which the workpiece 1 in Edge area is tempered.
  • the one selected in the example shows Workpiece 1 has a profiled edge 5, the upper area rounded and the lower area is flat. It are two spatula blades 4 provided, of which in the Drawing the top spatula blade to the top, rounded Area of the workpiece edge 5 is assigned, while in the drawing lower spatula the lower, level Area of the workpiece edge 5 is assigned.
  • the two Spatula blades 4 are slightly offset in the direction of flow arranged one after the other.
  • the workpiece 1 with that already at a previous one Machining station profiled and ground Workpiece edge 5 is first in the pass Application roller 2 passed. From the surface of the Application roller 2 becomes a coating compound 3 in the hot state, for example with a temperature in the range of about 200 ° C, transferred to the workpiece edge 5.
  • the workpiece 1 with the layer applied to the edge 5 hotter Compensation compound continues to the spatula blade 4 for example to a temperature in the range of about 200 ° C is heated. While the hot applied on the edge 5 Coating compound 3 in the direction of flow on the spatula blade 4 As it passes, the mass of this becomes the open one Pores 6 of the workpiece edge 5 directed and into the pores 6 pressed so that they are closed.
  • the compensation compound 3 penetrates evenly into the pores 6 and the unevenness of the workpiece edge 5 and through Spatula blade 4 is in addition to the uniform insertion of the Coating compound in the open-pore workpiece edge at the same time also a smooth outer surface of the coating compound layer achieved after hot filling, as it is schematically on left edge of the picture in Fig. 1 is illustrated.
  • step A this first becomes machining workpiece, e.g. a chipboard into which Processing machine clamped. The direction of flow of the The machine is marked with an arrow.
  • step B the workpiece edge to be machined by profile milling profiled. This is included in step C.
  • step D follows first applying a hot coating compound and then the hot filling of the compensation mass into the remaining ones Pores and unevenness of the profiled workpiece edge, like it was previously explained in detail.
  • Step E closes a grinding process.
  • paint is applied to the tempered workpiece edge.
  • a step G the paint is e.g. by dried ultraviolet radiation and in a step H ground.
  • a processing step I through Hot stamping e.g. embossed with a decorative paper film.
  • a device is schematically illustrated in FIG of the appropriate processing stations to carry out of the processing steps listed in Fig. 3 in a row in workpiece direction, i.e. 4 from left to right right, are arranged.
  • All processing stations are integrated in a processing machine and the Editing steps can be done with the same Workpiece clamping can be carried out in one pass, see above that with the processing machine a complete processing of the Workpiece can take place in the edge area.
  • a profile milling station B in the direction of flow
  • a profile grinding station C a job and a Hot filler station D
  • a profile grinding station E one Painting station F
  • a drying station G a Grinding station H and a hot stamping station I
  • All processing stations can be on one comparatively short throughput distance for the workpiece be accommodated so that there is a compact Complete processing machine can be realized.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Claims (21)

  1. Procédé pour usiner en continu des pièces façonnées (1) sensiblement plates et en forme de baguettes, constituées de matériaux ligneux à pores ouverts et analogues, dans la zone d'arête (5), comprenant les étapes suivantes:
    usinage de la pièce façonnée (1) dans la zone d'arête par fraisage (B) et/ou meulage-rectification (C);
    application d'une masse de traitement (3) chaude sur la zone d'arête (5), et
    enduction à chaud (D) de la masse de traitement avec un ou plusieurs éléments formant racle (4), calés angulairement dans la direction de passage de la pièce façonnée (1) sous un angle (α) aigu par rapport à l'arête (5) de la pièce façonnée (1) à travailler, et la masse de traitement chaude ayant été appliquée précédemment étant enfoncée régulièrement dans les pores de la zone d'arête lors du passage de la pièce façonnée (1).
  2. Procédé selon la revendication 1, caractérisé en ce que l'application (D) et l'enduction à chaud (D) de la masse de traitement (3) se font pendant le passage de la pièce, à plusieurs reprises l'une derrière l'autre.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'une étape d'usinage par meulage-abrasion (E) est effectuée à la suite de l'enduction à chaud (D) de la masse de traitement (3).
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce qu'un deuxième composant de traitement est appliqué en plus sur la masse de traitement (3).
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que l'étape d'usinage, de fraisage et/ou de meulage se fait sous la forme de fraisage de profilage (B) et/ou de meulage de profilage (C).
  6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce que, à titre d'étape d'usinage supplémentaire pendant le passage, est effectuée une application de vernis (F), avec séchage (G) subséquent par irradiation aux ultraviolets, puis meulage (H).
  7. Procédé selon l'une des revendications 1 à 6, caractérisé en ce qu'un formage à chaud (I) est effectué pendant le passage, à titre d'étape d'usinage supplémentaire.
  8. Procédé selon l'une des revendications 1 à 6, caractérisé en ce qu'un encollage avec un matériau d'enduction est effectué pendant le passage, à titre d'étape d'usinage supplémentaire.
  9. Procédé selon l'une des revendications 1 à 8, caractérisé en ce que la masse de traitement (3) est une masse thermoplastique, une masse thermodurcissable ou une masse thermoplastique durcissant pour donner une masse thermodurcissable.
  10. Dispositif de mise en oeuvre du procédé selon la revendication 1, avec un dispositif de bridage, maintenant en continu la pièce façonnée (1) respective, et les postes d'usinage suivants, disposés les uns derrière les autres pour effectuer un usinage continu :
    un poste de fraisage et/ou de meulage (B, C),
    un poste d'application (D) pour la masse de traitement (3), et
    un poste d'enduction à chaud (D) avec un ou plusieurs éléments formant racle (4), calés angulairement dans la direction de passage de la pièce façonnée, sous un angle (α) aigu par rapport à l'arête (5) de la pièce façonnée (1) à usiner, et enfonçant la masse de traitement chaude préalablement appliquée régulièrement dans les pores de la zone d'arête, lors du passage de la pièce façonnée (1).
  11. Dispositif selon la revendication 10, caractérisé en ce que le poste de fraisage et/ou de meulage est réalisé sous la forme de poste de fraisage de profilage et/ou de meulage de profilage (B, C).
  12. Dispositif selon la revendication 10 ou 11, caractérisé en ce que le poste applicateur est réalisé sous la forme de mécanisme d'application à buses, à rouleaux (2), à bandes de transfert ou analogues.
  13. Dispositif selon l'une des revendications 10 à 12, caractérisé en ce que le poste d'enduction à chaud est constitué d'éléments formant racle (4) chauffés, disposés autour du profil d'arête (5) de la pièce façonnée (1) à travailler.
  14. Dispositif selon la revendication 13, caractérisé en ce que plusieurs groupes, constitués d'éléments formant racle (4) disposés autour du profil d'arête (5), sont installés les uns derrière les autres dans le poste d'enduction à chaud.
  15. Dispositif selon la revendication 10, caractérisé en ce que l'angle de calage angulaire (α) des éléments formants racle (4) est réglable par rapport à l'arête (5) à travailler de la pièce façonnée.
  16. Dispositif selon l'une des revendications 13 à 15, caractérisé en ce que les éléments formant racle sont réalisés sous la forme de lames de spatule (4).
  17. Dispositif selon l'une des revendications 10 à 16, caractérisé en ce que plusieurs postes d'application et d'enduction à chaud (D) sont installés les uns derrière les autres, à l'intérieur du dispositif.
  18. Dispositif selon l'une des revendications 10 à 17, caractérisé en ce que qu' un poste de meulage (E) est disposé en aval au moins du dernier poste d'enduction à chaud (D), dans la direction de passage.
  19. Dispositif selon l'une des revendications 10 à 18, caractérisé en ce qu'à l'intérieur du dispositif, un poste de vernissage-peinture (F), avec un poste de séchage (G) subséquent, travaillant avec des émetteurs rayonnants d'ultraviolet, puis un poste de meulage (H), sont disposés en aval des postes d'usinage.
  20. Dispositif selon l'une des revendications 10 à 19, caractérisé en ce qu'un poste d'estampage à chaud (I) est installé en aval des postes d'usinage, à l'intérieur du dispositif.
  21. Dispositif selon l'une des revendications 10 à 19, caractérisé en ce qu'un poste d'encollage, pour effectuer le revêtement par un matériau de revêtement, est installé en aval des postes d'usinage, à l'intérieur du dispositif.
EP96107596A 1995-05-23 1996-05-13 Procédé et appareil pour usiner en continu des pièces en bois poreux, et en particulier les bords Expired - Lifetime EP0744260B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19518925 1995-05-23
DE19518925A DE19518925A1 (de) 1995-05-23 1995-05-23 Verfahren und Vorrichtung zur Durchlauf-Bearbeitung von im wesentlichen flächigen oder leistenförmigen Werkstücken aus offenporigen Holzwerkstoffen und dergleichen im Kantenbereich

Publications (2)

Publication Number Publication Date
EP0744260A1 EP0744260A1 (fr) 1996-11-27
EP0744260B1 true EP0744260B1 (fr) 2001-08-29

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EP96107596A Expired - Lifetime EP0744260B1 (fr) 1995-05-23 1996-05-13 Procédé et appareil pour usiner en continu des pièces en bois poreux, et en particulier les bords

Country Status (4)

Country Link
EP (1) EP0744260B1 (fr)
AT (1) ATE204800T1 (fr)
DE (2) DE19518925A1 (fr)
ES (1) ES2161940T3 (fr)

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DE10317953B3 (de) * 2003-04-17 2005-02-03 Homag Holzbearbeitungssysteme Ag Vorrichtung und Verfahren zur Durchlaufbearbeitung von Werkstücken im Kantenbereich
EP2298518A2 (fr) 2009-09-17 2011-03-23 IMA Klessmann GmbH Holzbearbeitungssysteme Procédé de lissage de surface et dispositif destiné à masquer des surfaces

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DE10124676A1 (de) 2001-05-18 2002-11-28 Klebchemie, M.G. Becker Gmbh & Co Kg Verfahren und Vorrichtung zur Herstellung von Teilen mit einer Versiegelungsschicht auf der Oberfläche und derartige Teile
DE102010008821A1 (de) 2010-02-22 2011-08-25 Homag Holzbearbeitungssysteme AG, 72296 Verfahren zum Beschichten von Bauteilen
DE102011085996A1 (de) 2011-11-09 2013-05-16 Henkel Ag & Co. Kgaa Mehrschicht-Kantenverklebung
CN103009209B (zh) * 2012-12-28 2015-06-03 杨莉 全自动曲直磨、烫一体封边机及其实现方法
DE102013216113A1 (de) 2013-08-14 2015-03-05 Homag Holzbearbeitungssysteme Gmbh Beschichtungsaggregat
DE102015219108A1 (de) 2015-10-02 2017-04-06 Homag Gmbh Verfahren sowie Vorrichtung zur Schmalflächenbeschichtung
ES2627309B1 (es) * 2016-01-15 2018-08-01 Jesus Francisco Barberan Latorre Procedimiento de recubrimiento de paneles y máquina empleada para recubrir los paneles
DE102020122442A1 (de) 2020-08-27 2022-03-03 Riepe Gmbh & Co. Kg Verfahren zum Bearbeiten eines Kantenbandes sowie Vorrichtung zur Durchführung des Verfahrens
DE102021132156B3 (de) 2021-12-07 2023-04-27 Konrad Scholz Glättvorrichtung
DE102022105259A1 (de) 2022-03-07 2023-09-07 Bodo Mündkemüller Aggregat zur Bearbeitung einer Kantenfläche einer Holzwerkstoffplatte

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Publication number Priority date Publication date Assignee Title
DE10317953B3 (de) * 2003-04-17 2005-02-03 Homag Holzbearbeitungssysteme Ag Vorrichtung und Verfahren zur Durchlaufbearbeitung von Werkstücken im Kantenbereich
EP2298518A2 (fr) 2009-09-17 2011-03-23 IMA Klessmann GmbH Holzbearbeitungssysteme Procédé de lissage de surface et dispositif destiné à masquer des surfaces
DE102009041928A1 (de) 2009-09-17 2011-04-07 Ima Klessmann Gmbh Holzbearbeitungssysteme Verfahren zur Oberflächenglättung und Vorrichtung zur Flächenkaschierung
DE102009041928B4 (de) * 2009-09-17 2012-03-29 Ima Klessmann Gmbh Holzbearbeitungssysteme Verfahren zur Oberflächenglättung und Vorrichtung zur Flächenkaschierung

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ATE204800T1 (de) 2001-09-15
DE59607561D1 (de) 2001-10-04
DE19518925A1 (de) 1996-11-28
EP0744260A1 (fr) 1996-11-27
ES2161940T3 (es) 2001-12-16

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