EP3187320B1 - Procédé de fixation de structures plates en forme de bande, en particulier bandes de bordures sur les faces étroites de pièces à usiner - Google Patents

Procédé de fixation de structures plates en forme de bande, en particulier bandes de bordures sur les faces étroites de pièces à usiner Download PDF

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Publication number
EP3187320B1
EP3187320B1 EP16202313.9A EP16202313A EP3187320B1 EP 3187320 B1 EP3187320 B1 EP 3187320B1 EP 16202313 A EP16202313 A EP 16202313A EP 3187320 B1 EP3187320 B1 EP 3187320B1
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EP
European Patent Office
Prior art keywords
fabric
fluid medium
application device
functional layer
cleaning
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
EP16202313.9A
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German (de)
English (en)
Other versions
EP3187320A1 (fr
Inventor
Michael Karau
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Individual
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Individual
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Publication date
Priority claimed from DE102015016904.1A external-priority patent/DE102015016904A1/de
Application filed by Individual filed Critical Individual
Priority to PL16202313T priority Critical patent/PL3187320T3/pl
Publication of EP3187320A1 publication Critical patent/EP3187320A1/fr
Application granted granted Critical
Publication of EP3187320B1 publication Critical patent/EP3187320B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
    • B27D5/003—Other working of veneer or plywood specially adapted to veneer or plywood securing a veneer strip to a panel edge

Definitions

  • the invention relates to a method for fastening strip-shaped flat structures, according to the preamble of claim 1. Such a method is known from the document EP2111956A2 known.
  • From the DE 10 2012 007 281 A1 is a method for producing a furniture panel with a plastic edge previously known.
  • the plastic edge is joined to the panel body by partial melting.
  • the plastic edge is melted on its side facing the panel body by means of laser light and / or plasma radiation and pressed against the panel body with the melted surface.
  • the use of thin edges is problematic, since there is a risk of complete melting or excessive softening. In this respect, care must be taken to ensure that only a part of the layer of the plastic edge is melted and that the side of the edge facing away from the panel body remains sufficiently firm to prevent undesired deformation of the edge when a pressing tool is attached.
  • the DE 10 2012 007 281 A1 propose to add a viscosity reducer to the thermoplastic base material of a plastic edge as an additive to improve the melt flow and to build up the plastic edge in a single layer with an essentially homogeneous material composition over the entire plastic edge cross section.
  • Another advantage is that, overall, it is possible to work with smaller amounts of energy introduced into the plastic material and accordingly a lower temperature gradient across the cross section of the edge is established. So the side opposite the panel body remains relatively cool.
  • a radiation module with a plurality of individual radiation elements emitting laser radiation is used as the radiation source for activating an adhesive layer or adhesion-promoting layer.
  • the formation of a laser source in this way is intended to reduce the energy required for activating the layer and, overall, to achieve better efficiency.
  • the Individual, laser-emitting elements are attached relatively close to the plastic layer to be activated or in the vicinity thereof. When the adhesive layer or the adhesion-promoting layer of the plastic material is activated, emissions occur which can form on the surface in the form of particles.
  • the known device and workpiece feeder after DE 10 2013 002 920 A1 has a heat source with control.
  • the controller uses signals from a temperature monitoring device in order to switch off a laser source when a predetermined threshold value is exceeded.
  • the temperature monitoring device is provided with a cooling device, as a result of which the temperature rise in the temperature detection device which triggers the shutdown of the heat source by the control is delayed or compensated.
  • the device for processing a plate made of wood or a wooden material according to DE 200 14 953 U1 is also based on the idea of fixing an edge band, which is made of plastic, to an edge of a workpiece by gluing, wherein a protrusion of the edge band projecting on one or both sides of the plate is removed by means of an edge band milling cutter.
  • a device is provided in front of the edge band milling cutter, with which a fluid agent preventing electrostatic charging of the wetted areas and / or the milling chips can be applied to the edge band and / or the plate.
  • corresponding spray nozzles are located both in front of the processing station of the edge band milling cutter and in front of those of the format milling cutter.
  • the actual edgeband which is usually brought in from a supply store, remains untreated in advance.
  • edge strips fed with dust and dirt particles are fed to a corresponding edge banding machine.
  • cleaning of the edge bands does not take place with all the disadvantages associated with it, in particular poorer optics, reduced adhesion and the expense of subsequent post-treatment.
  • the processing speeds in modern edge banding machines, which thermally fix the edge bands to the respective furniture panel mean that sufficient cooling of the adhesive or adhesive bond has not yet been achieved before subsequent processing steps, such as milling or form milling, take place. If a mechanical milling head hits a material that has not yet hardened and is too soft, the result of the milling step deteriorates, so that further reworking is necessary or quality deterioration occurs.
  • Another object of the invention is to provide a further developed method for fastening strip-shaped flat structures, in particular edge bands on narrow sides of workpieces, in particular furniture panels, with the aid of which high processing speeds when fixing edge bands as preferred surface structures can be realized with high quality of the connection realized are.
  • Another object of the invention is to provide a universal fluid medium both for cleaning the edge bands or process-relevant surfaces and for cooling them. The appropriate means is to ensure that maximum workplace concentrations are not exceeded and that there is only a small, negligible health risk when using such fluid media. Ultimately, through that to be specified fluid means a reduction in costs in the relevant processing of furniture panels can be achieved.
  • the object of the invention is achieved by a method using fluid agents and using a sprayable, non-corrosive surface functional coating based on an alcoholic acetate solution, the subclaims representing at least expedient refinements and developments.
  • the proposed method uses a known method of fastening strip-shaped flat structures, in particular edge bands, on the narrow sides of workpieces, in particular furniture panels.
  • a tape feed device which transports the respective fabric from a storage device, in particular a supply roll, along a feed path to the workpiece.
  • a heat source in particular laser light, hot air, infrared or plasma energy, is used, which brings an adhesion-promoting functional layer of the fabric to an activation temperature.
  • the functional layer can be part of the actual fabric, but can also represent an applied adhesive layer.
  • a device for pressing or pressing the fabric onto the respective narrow side of the workpiece is used.
  • At least one first application device for a fluid medium is formed in the feed path of the fabric before the heat source acts.
  • This first application device doses the fluid medium on the side of the fabric opposite the functional layer, in such a way that a defined heat sink is formed for the required process of rapid cooling after the activation temperature has been reached and the fabric pressed on.
  • a further, second application device for a fluid medium according to the invention is provided oriented on the functional layer side in order to prevent the Effect of the energy of the heat source to clean the surface of the fabric.
  • a third application device for a fluid medium is present, which is oriented both to the functional layer and to the opposite side of the flat structure.
  • the third application device is formed on or in the vicinity of the storage storage for the edge band in order to bring about an intensive surface cleaning of the fabric and, if appropriate, to sensitize the subsequent process steps.
  • an activator in particular an activator for an adhesive that has already been applied or is still to be applied, can be added to the fluid medium used.
  • the application devices comprise a pressure generating device and at least one application nozzle which is matched to the fabric.
  • the amount of fluid applied with the first application device is determined taking into account the feed rate of the sheet material supplied and the desired evaporative cooling, i.e. the desired effect of the resulting heat sink.
  • the invention is also the use of one and the same fluid means both for cleaning and for cooling the edge band for the first to third application device.
  • further cooling and cleaning devices can be dispensed with immediately before mechanical post-treatments, in particular the use of edge band milling cutters.
  • the time-consuming application of so-called antistatic fluids can be completely eliminated.
  • the fluid agent according to the invention is a temporarily acting, sprayable, non-corrosive surface functional coating based on an anhydrous alcoholic acetate solution.
  • this is a surface functional coating, at least one function-determining substance in powder form being added to a melt in order to embed the powder particles and the melt enriched in this way is then converted into a solution by adding a glycol.
  • Association colloids which coat the embedded powder particles, are formed by introducing, in particular instilling, the solution in demineralized water as a carrier, the function-determining substance pretreated in this way being added to the alcoholic acetate solution.
  • the function-determining substance is e.g. Polytetrafluoroethylene nanoparticles, metallic powders, inorganic pigments and / or germ-reducing agents for use.
  • melt is provided on the basis of nonionic, low-foam surfactants, in particular on the basis of block copolymers.
  • hexylene glycol is added to the enriched melt.
  • Salt can then be added to the overall mixture to form ions.
  • the method-related approach of the invention therefore goes back to mounting an application device, in particular a nozzle, directly on or in the vicinity of the action of the heat source in such a way that at least the side of the edge band facing away from the heat source, i.e. the back is wetted.
  • the fluid which contains constituents which evaporate easily, results in a heat sink which serves for the desired rapid cooling after the edge band has been heated and brought into contact with the workpiece.
  • the surface functional coating which is preferably used according to the invention and which is based on an alcoholic acetate solution has properties such that, in addition to a cleaning effect, it is ensured that the surfaces treated in each case have an increased degree of gloss, an improved feel, but also a temporary protective film.
  • the non-corrosive surface functional coating medium used initially uses a function-determining substance which is in powder form and which is added to a melt in order to embed the powder particles of the function-determining substance.
  • the melt enriched in this way is then converted into a solution by adding a glycol.
  • a glycol By introducing, in particular instilling, the solution into a small amount of demineralized water as a carrier, association colloids are formed which envelop the embedded powder particles.
  • the function-determining substance pretreated in this way which is otherwise not soluble, is the starting solution, i.e. added to the alcoholic acetate solution.
  • Functional substances such as Polytetrafluoroethylene nanoparticles, metallic powders, inorganic pigments and / or substances are used which are particularly suitable for improving the properties of the surface of the materials to be treated.
  • the melt is provided on the basis of nonionic, low-foam surfactants, in particular on the basis of block copolymers.
  • hexylene glycol is added to the enriched melt.
  • salt can be added to the overall mixture to form ions.
  • An exemplary embodiment for providing the fluid means is as follows.
  • a melt is initially formed from poloxamer, the melting temperature being about 120 ° C. in this regard.
  • a PTFE nanoparticle powder is then added to this melt as an exemplary function-determining substance. As a result, these nanoparticles are melt-embedded. The nanoparticles are added successively and with stirring of the melt.
  • the raw material created in this way is crosslinked with hexylene glycol and goes into solution.
  • the solution obtained is placed in demineralized water. After this, micelles form. Concentrating would of course be possible.
  • the possibly concentrated mixture is then added to the alcoholic acetate solution and is available as a sprayable, non-corrosive functional coating for the application relevant here.
  • the PTFE nanoparticles close pores in the plastic surface with the result of a clearly noticeable surface smoothing and improved feel. Subsequent polishing using polishing agents, in particular waxing surfaces treated in this way, can be omitted. It should be mentioned that demineralized water is only used as a carrier. The total water content of the mixture is almost zero, so that the fluid medium is not corrosive. There is no need to use corrosion inhibitors.
  • the fluid agent according to the invention is free of gasolines, which raises the problem of the use of the coating and the permissible maximum workplace concentration relaxed from pollutants.
  • a polyhydric alcohol for example isopropanol, which acts as a release agent, can be added to the functional coating. Isopropanol can thus advantageously replace silicones commonly used as release agents. Silicones have to be removed for subsequent processing steps in complex cleaning steps.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (5)

  1. Procédé de fixation de structures plates en forme de bandes, en particulier de bandes de bordure, sur les petits côtés de pièces à œuvrer, en particulier de panneaux de meubles, au moyen d'un dispositif d'alimentation en bandes qui transporte la structure plate respective depuis un réservoir, en particulier un rouleau de réserve, le long d'un chemin d'alimentation jusqu'à la pièce à œuvrer,en utilisant en outre une source de chaleur, en particulier une lumière laser, de l'air chaud ou à base d'infrarouge ou de plasma, qui amène une couche fonctionnelle adhésive de la structure plate à une température d'activation, et au moyen d'un dispositif pour pousser ou presser la structure plate sur le petit côté respectif de la pièce à œuvrer,
    caractérisé en ce que
    au moins un premier dispositif d'application d'un milieu fluide est réalisé dans le trajet d'alimentation de la structure plate avant l'action de la source de chaleur, lequel dispositif applique le milieu fluide de manière dosée sur le côté de la structure plate opposé à la couche fonctionnelle de telle sorte qu'un puits de chaleur est formé pour le processus requis de refroidissement rapide, le milieu fluide étant un revêtement fonctionnel de surface non corrosif, pulvérisable, à action temporaire, à base d'une solution alcoolique anhydre d'acétate, et un second dispositif d'application d'un milieu fluide, orienté vers le côté revêtement fonctionnel, est prévu pour réaliser un nettoyage de la surface de la structure plate avant l'action de la source de chaleur.
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    il est prévu un troisième dispositif d'application pour un milieu fluide, orienté à la fois vers la couche fonctionnelle et vers la face arrière de la structure plate opposée à ladite couche, le troisième dispositif d'application étant réalisé sur ou à proximité du réservoir afin de provoquer un nettoyage intense de la surface de la structure plate et une sensibilisation pour les étapes suivantes du processus.
  3. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que
    les dispositifs d'application comprennent un moyen de génération de pression et au moins une buse d'application adaptée à la structure plate.
  4. Procédé selon la revendication 1,
    caractérisé en ce que
    la quantité du fluide appliqué par le premier dispositif d'application est déterminée en tenant compte de la vitesse d'avance de la structure plate alimentée et du refroidissement souhaité par l'évaporation.
  5. Procédé selon l'une des revendications précédentes,
    caractérisé par
    l'utilisation d'un seul et même milieu fluide aussi bien pour le nettoyage que pour le refroidissement.
EP16202313.9A 2015-12-29 2016-12-06 Procédé de fixation de structures plates en forme de bande, en particulier bandes de bordures sur les faces étroites de pièces à usiner Active EP3187320B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16202313T PL3187320T3 (pl) 2015-12-29 2016-12-06 Sposób mocowania mających kształt taśmy wyrobów płaskich, w szczególności taśm krawędziowych na wąskich bokach przedmiotów obrabianych

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015016904.1A DE102015016904A1 (de) 2015-05-28 2015-12-29 Verfahren zum Befestigen von streifenförmigen Flächengebilden, insbesondere Kantenbändern an Schmalseiten von Werkstücken

Publications (2)

Publication Number Publication Date
EP3187320A1 EP3187320A1 (fr) 2017-07-05
EP3187320B1 true EP3187320B1 (fr) 2020-04-15

Family

ID=57544222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16202313.9A Active EP3187320B1 (fr) 2015-12-29 2016-12-06 Procédé de fixation de structures plates en forme de bande, en particulier bandes de bordures sur les faces étroites de pièces à usiner

Country Status (2)

Country Link
EP (1) EP3187320B1 (fr)
PL (1) PL3187320T3 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2111956A2 (fr) * 2008-03-27 2009-10-28 LCM GmbH Produit de traitement du bois
DE202015006174U1 (de) * 2015-05-28 2015-09-14 Michael Karau Mindestens temporär wirkende, sprühfähige, nicht korrosive Oberflächenfunktionsbehandlung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT380823B (de) * 1984-06-20 1986-07-10 Berger Johann Verfahren und vorrichtung zum anleimen oder verkleben von kantenmaterial an plattenfoermige werkstuecke
US6180172B1 (en) * 1994-11-29 2001-01-30 Henkel Kommanditgesellschaft Auf Aktien Process and apparatus for treating surfaces
JP3686157B2 (ja) * 1996-03-29 2005-08-24 株式会社クラレ 溶液の処理方法
DE20014953U1 (de) 2000-08-30 2001-05-31 Riepe Angelika Vorrichtung zum Bearbeiten einer Platte aus Holz oder einem Holzwerkstoff
DE10342723B4 (de) * 2003-09-16 2005-12-15 Delle Vedove Maschinenbau Gmbh Wärmetauschervorrichtung
DE102012007281A1 (de) 2012-04-12 2013-10-17 Bulthaup Gmbh & Co. Kg Kunststoffkante, Möbelpaneel und Verfahren zur Herstellung eines Möbelpaneels mit Kunststoffkante
PL400042A1 (pl) * 2012-07-19 2014-01-20 Fabryka Mebli Biurowych Mdd Spólka Z Ograniczona Odpowiedzialnoscia Sposób oklejania krawedzi plyty meblowej
DE102013002920B4 (de) 2013-02-21 2018-06-07 Ima Klessmann Gmbh Holzbearbeitungssysteme Bekantungsvorrichtung
DE102014008455A1 (de) 2014-06-05 2015-12-17 Ima Klessmann Gmbh Holzbearbeitungssysteme Vorrichtung und Verfahren zum Aufbringen eines Kantenbandes auf eine Schmalseite eines Werkstücks

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2111956A2 (fr) * 2008-03-27 2009-10-28 LCM GmbH Produit de traitement du bois
DE202015006174U1 (de) * 2015-05-28 2015-09-14 Michael Karau Mindestens temporär wirkende, sprühfähige, nicht korrosive Oberflächenfunktionsbehandlung

Also Published As

Publication number Publication date
PL3187320T3 (pl) 2021-04-06
EP3187320A1 (fr) 2017-07-05

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