EP2688722A2 - Procédé et dispositif de façonnage des bords de panneaux en matériau dérivé du bois et panneau en matériau dérivé du bois - Google Patents

Procédé et dispositif de façonnage des bords de panneaux en matériau dérivé du bois et panneau en matériau dérivé du bois

Info

Publication number
EP2688722A2
EP2688722A2 EP12707555.4A EP12707555A EP2688722A2 EP 2688722 A2 EP2688722 A2 EP 2688722A2 EP 12707555 A EP12707555 A EP 12707555A EP 2688722 A2 EP2688722 A2 EP 2688722A2
Authority
EP
European Patent Office
Prior art keywords
wood
cover edge
edge
narrow side
cover
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.)
Granted
Application number
EP12707555.4A
Other languages
German (de)
English (en)
Other versions
EP2688722B1 (fr
Inventor
Bruno Reiter
Martin Berger
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 PL12707555T priority Critical patent/PL2688722T3/pl
Publication of EP2688722A2 publication Critical patent/EP2688722A2/fr
Application granted granted Critical
Publication of EP2688722B1 publication Critical patent/EP2688722B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N7/00—After-treatment, e.g. reducing swelling or shrinkage, surfacing; Protecting the edges of boards against access of humidity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • 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 Bekanten of
  • Wood-based panels in which the following steps
  • the invention relates to a device for edging wood-based panels with a device for
  • Providing a wood-based panel and transporting the wood-based panel in a production movement direction comprising means for providing and supplying a cover edge as a roll product, and means for adhering the cover edge on the narrow side of the
  • Wood-based panel using an adhesive Wood-based panel using an adhesive.
  • the invention relates to a wood material board produced by a method as described above and a cover edge.
  • wood-based panels increase the stability in the area of the narrow side, but on the other hand also have the
  • the porous middle layer does not pass through the coating
  • Lightweight panels which often have a layer of a honeycomb structure, such as cardboard honeycomb structure, as a middle layer, since here too the middle layer after the
  • Coating the narrow side with a thin foil or the like would be outward sign off.
  • a cover edge is also used as additional support in the edge area.
  • Cover edges are very well suited for certain applications. But it can also be preferred for artistic and / or cost reasons, to dispense with plastic strips. It is known in particleboard to use a plate type with a higher middle layer density. With a high middle layer density, the edge region is more stable and cabled, especially after a separate step of sanding, no longer so easily by a thin one
  • cover layers which supports the light middle layer and also stabilizes the edge area.
  • Lightweight panel is known for example from DE 10 2006 027 281 AI. On the one hand, bars are only as
  • chip, fiber or lightweight boards in which the following steps are carried out:
  • a wood-based panel which may consist entirely or in layers of wood particles provided with a binder and compressed, with a lower density in the middle layer than on the outside, wherein the wood-based panel is a parallel to the
  • Wood particles wherein the cover edge has a thickness (thickness) of at most 8 mm and is formed from a wood material selected from the group consisting of thin chipboard, fine chipboard and fiberboard, - rolling the cover edge to a roll,
  • Wood material board using an adhesive wherein the elasticity of the cover, that is, the material of the cover, is increased before sticking, and optionally
  • a coating for example a film or a laminate, at least at the with the
  • Wood material board wherein the coating has in particular a thickness in a range of 0.3 to 1 mm.
  • the wood-based panel is either a panel that can be made entirely of wood particles provided with a binder and compressed. These include e.g. single- or multi-layered chip, OSB (oriented beach board) or fiberboard, in particular MDF boards
  • Wood-based panel around a panel the only layerwise provided with a binder and pressed
  • Wood particles may be made, wherein adjacent to or between the layers of compressed chips another
  • Material such as a honeycomb structure
  • a honeycomb structure can be arranged.
  • An example of the latter wood-based panel is a lightweight board with cover plates made of a wood material and a honeycomb structure, in particular cardboard honeycomb structure.
  • the cover plates one or more layers chip, OSB (oriented beach board) or Fiberboard, in particular MDF boards (medium density
  • Fiberboard as well as combination thereof.
  • Thin chipboard, fine chipboard or fiberboard is a material which, in contrast to solid wood after production due to its special
  • Texture that is, the structure with one
  • Binder provided wood particles, can be rolled up and stored as a roll and for Bekanten the
  • Wood-based panels can be provided.
  • Edge material can be unrolled and glued. Another advantage of thin chipboard, fine particle board and fiberboard is finally the high quality
  • thin chipboard is chipboard having a maximum thickness (thickness) of 8 mm.
  • fine chipboard is in the sense of present invention chipboard having chips, after their drying and before gluing
  • cover edges can be rolled up particularly well immediately after passing through the press, when the elasticity is still relatively high, since the binder has not yet set completely. To roll off the
  • the elasticity of the cover edge which is provided as roll goods, is increased prior to sticking, as will be explained hereinafter by heating and / or or moistening the cover edge.
  • the binder softens.
  • the wood particles become more elastic. In this way, the cover can bring back into a largely planned state before this on the narrow side of the cover edge
  • Wood-based panel is finally applied.
  • the wood material from which the covering edge is formed produced in a continuous pressing process, wherein in the pressing process, the wood material and the
  • Chip cake which makes the wood material later
  • Calender is preferred for the purposes of the invention constructed so that the material to be pressed between a comparatively large, heated press drum and an endless steel belt is performed.
  • a calendering press is particularly suitable for the production of relatively thin
  • Covering edges In principle, another press can be used to produce the cover edges. It is also conceivable that the process is performed clocked.
  • the wood material from which the covering edge is formed after the step of pressing, for example after passing through the particular continuous
  • Wood material from which the cover edge is formed, according to this embodiment, a width which corresponds to a multiple of the width of the later cover edge, in particular an integer multiple.
  • the cutting device for example, the multi-blade circular saw or
  • Laser cutting device then produces strips that form the cover edge or an intermediate product from which the cover edge is obtained by further fragmentation, that is, the strips are produced by the cutting in a width, in particular at least the width of
  • Narrow side is equal to or greater.
  • Covering edge is formed, initially in relatively wide
  • Strips for example in 2 to 10 strips, in particular 5 strips, a 300 to 500 mm wide, in particular 400 mm
  • the kerf width is at Parting in particular at least 1.5 mm, preferably at least 2 mm. These strips represent the aforementioned intermediate product from which the cover edge by further
  • the strips forming the intermediate product are then rolled together, in particular successively, onto a roll, for example with an inner diameter of 500 to 900 mm, in particular 700 mm.
  • This rolled product then has an outer diameter of in particular 1500 to 3000 mm, preferably up to 2500 mm.
  • Strip separated to the desired level of the final Abdeckkante for example, each 9 strips of 40 mm or 33 strips of 10 mm, just to name a few examples.
  • the kerf width here is also at least 1.5 mm, preferably at least 2 mm, during cutting.
  • These strips are then again rolled onto a roll, here for example with an inner diameter of 200 to 500 mm, in particular 300 mm. From this role, the individual strips are then removed.
  • the rolls with the final strips then have, for example
  • the covering edge lies after the step of
  • the roll goods more than 100 running meters (running meters), preferably more than 250 running meters, more preferably more than 400 running meters, comprises covering material.
  • the covering edge is removed before the step of
  • the covering edge is at least one-sided with a nonwoven, in particular after the pressing step and before the gluing step
  • Such a layer absorbs stresses, in particular tensile stresses, and permits smaller roll diameters of the roll goods, which improves logistics. Also, the risk of breakage during processing, that is, when unrolling and sticking to the narrow side, reduced.
  • the cover has a thickness or thickness, which is in a range of 1 to 8 mm, preferably in a range of 1.2 to 4 mm, more preferably in a range 2.2 to 3.2 mm. Cover edges with a thickness in the
  • the areas indicated have the advantage that, especially with the cover edge materials selected from the group comprising thin chipboard, fine chipboard and fiberboard, on the one hand, a sufficient strength is given,
  • a hot melt adhesive in particular ethylene vinyl acetate (EVA), on the cover edge and / or the narrow side of the
  • Wood material board is a chipboard. Also,
  • Polyurethanes are suitable in the present case as
  • Adhesive due to a particularly fast cross-linking Adhesive due to a particularly fast cross-linking.
  • the cover edge is provided with an activatable layer during its production, in particular before rolling up, which may be, for example, the said adhesive, e.g. EVA or PU, can act.
  • the activatable layer is then activated in the step of adhering the Abdeckkante on the narrow side of the wood-based panel, whereby the layer in particular itself
  • Adhesive properties developed or together with another layer adhesive properties causes or at least improved. As already mentioned before, according to a
  • Embodiment of the method according to the invention provided that the covering edge before the step of sticking and heated and / or moistened in particular after rolling to increase the elasticity. In this case, when both moistened and heated, the moistening before, during or after heating done. In this way, the cover edge is compared to the previous material state
  • the heating is preferably carried out by introducing steam, the so-called steaming.
  • the introduction of steam also increases the humidity at the same time.
  • the cover can also by means of high-energy radiation, in particular infrared, ultrasonic or
  • Microwave radiation to be heated.
  • the heating also has the advantage that an activatable layer which may optionally be present on the covering edge can be activated simultaneously, for example adhesively, made.
  • inventive method is after sticking the
  • Wood-based panel performed by milling.
  • the milling with which the material of the wood material board and the
  • Masking edge is brought into the desired shape and is removed with the supernatant material is clearly distinguished from a grinding, with which a particularly smooth surface is produced.
  • According to the invention is preferably dispensed with a grinding of the cover.
  • Method is both the wood-based panel and the wood material from which the cover is formed, a chipboard or a fiberboard, in particular an MDF board (medium-density fiberboard). It has been shown, for example, that the same materials can be better connected together than different materials. In other words, a chipboard can be particularly well with a cover edge of a thin chipboard or
  • Fine particle board bekante A fiberboard, such as MDF board, can be particularly well bekante by a covering edge of a fiberboard.
  • the cover edge is glued continuously according to yet another embodiment of the method according to the invention. It is conceivable, for example, that in the course of the production of the bekantenden
  • Wood-based panel for example, after this expands from the press, immediately the cover, as
  • the cover edge used in the invention is compared with a plastic material or a wood veneer much cheaper and can be machined comparatively good, resulting in high durability in further processing, especially when milling results.
  • Wood-based panels produced according to the invention can also be easily recycled or recycled since they are made from cellulose-based raw materials.
  • the object is further achieved according to a second teaching of the present invention by a device for edging of wood-based panels, in particular for
  • a ⁇ bdeckkante as a roll namely roll goods made of a wood material
  • Narrow side of the wood-based panel which is followed by the means for increasing the elasticity.
  • the device according to the invention has means for carrying out some or all of the method steps described above.
  • the device for increasing the elasticity comprises means for supplying heat and / or moisture, in particular steam. Also may be means of applying
  • the device according to the invention is a device for
  • the device in particular continuous production of the cover edge from wood particles provided with a binder and compressible into a wood material, the device particularly comprising means for applying a nonwoven,
  • cellulose fiber fleece in particular cellulose fiber fleece, has on the cover edge.
  • Device according to the invention comprises the device for
  • Adhesive on If the adhesive is already provided from the outset on the cover provided as a roll product, such means may also be omitted.
  • the already provided from the outset adhesive can be activated by heating the cover and / or by heating the adhesive, whereby it gets its adhesive properties again. Heating the cover edge and / or the heating of the adhesive can also by
  • the wood material board may be a
  • Lightweight panel act in which the middle layer is formed by a light middle layer of a first material, wherein the middle layer of cover plates from a second
  • the cover plates may be chipboard
  • Fiber or OSB plates Oriented Strand Board plates
  • comparable wood materials act. At the light
  • the middle layer is preferably a honeycomb structure, in particular a cardboard honeycomb structure.
  • a cover edge in particular for use in a method as defined above, provided with a binder and pressed into a wood material wood particles, wherein the
  • Covering edge has a thickness of at most 8 mm, wherein the cover edge is formed of a wood material, from the Group is selected including thin chipboard, fine particle board and fiberboard, wherein the cover edge is present as a roll and the elasticity of the cover can be increased, in particular by the action of moisture
  • a reinforcement in particular a fleece, preferably one
  • Fig. La) to e) is a schematic representation of
  • Fig. 2a) to c) is a schematic representation of individual
  • FIG. 3 shows an embodiment of an apparatus for
  • Fig. La Lightweight panels is conceivable. According to Fig. La) is as a wood-based panel 1, a chipboard provided with a binder and pressed
  • the wood-based panel 1 is provided with a density which is less in the middle layer la than the outside, and has a parallel to the middle layer la extending upper side lb and bottom 1c and from the top lb to the bottom lc extending narrow side ld, also called side edge, on, wherein the narrow side ld has a width B and a length L.
  • the cover 2 consists of provided with a binder and to a
  • Wood material pressed wood particles and has a thickness d of 2.5 mm by way of example here.
  • the cover 2 consists of a fine chipboard with a very small
  • the wood-based panel 1 is shown after a profiling step, in which a milling tool provided with the cover edge 2 narrow side ld is brought into the desired shape. Without abrading the cover edge 2, as shown in Fig. Ld), a coating 6 in the form of a 0.3 mm thick film on the top lb and narrow side ld the Applied wood-based panel 1, wherein the coating 6 also covers the cover edge 2.
  • Fig. 2a shows schematically the production of the cover 2.
  • a binder hereinafter provided with a binder
  • the wood material 3 then passes through a cutting device 9 in the form of a multi-blade circular saw 9.
  • the multi-blade circular saw 9 divides the wood material 3 in
  • the respective strip 8 may well be slightly wider than the narrow side Id, in which case the
  • Means 19 a top side still provided with a fleece 11.
  • the role of goods 15 is particularly well suited for storage, transport and to provide the cover 2 before sticking the same on the narrow side Id the
  • Wood material latte 1 Wood material latte 1.
  • Fig. 3 shows a device for Bekanten of
  • the device here is a conveyor belt and a press. Furthermore, a device 14 for providing and supplying the cover edge 2 as a roll goods 15 is provided.
  • Device for edging of wood-based panels 1 also has the already mentioned device 16 for increasing the elasticity of the cover edge 2.
  • the means 16 for increasing the elasticity of the cover edge 2 In the embodiment of FIG. 3, the means 16 for increasing the
  • the device 16 detects the cover edge 2 only after unrolling, as shown in FIG. 2c).
  • the device further comprises a device 17 for
  • the device 17 for adhering the cover edge 2 is a milling device 20 downstream, in which the narrow side Id is profiled.

Landscapes

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

Abstract

L'invention concerne un procédé de façonnage des bords de panneaux en matériau dérivé du bois (1), comprenant : la fourniture d'un panneau en matériau dérivé du bois (1) d'une densité dans la couche centrale (1a) inférieure à celle située plus à l'extérieur, le panneau en matériau dérivé du bois (1) comprenant une face supérieure (1b) s'étendant parallèlement à la couche centrale (1a) et une face inférieure (1c) et au moins une face étroite (1d) s'étendant de la face supérieure (1b) à la face inférieure (1c), la face inférieure (1d) présentant une largeur (B) et une longueur (L) ; la fabrication d'une arête de recouvrement (2) à partir de particules de bois (4) pourvues d'un liant et comprimées en un matériau dérivé du bois (3), l'arête de recouvrement (2) présentant une épaisseur (d) de 8 mm maximum et étant composée d'un matériau dérivé du bois (4) choisi dans le groupe constitué par les panneaux de particules minces, les panneaux de particules fines et les panneaux de fibres ; l'enroulement de l'arête de recouvrement (2) pour obtenir des rouleaux (15) ; le déroulement des rouleaux (15) et le collage de l'arête de recouvrement (2) sur la face étroite (1d) du panneau en matériau dérivé du bois (1) au moyen d'une colle (5), l'élasticité de l'arête de recouvrement (2) étant augmentée avant le collage.
EP12707555.4A 2011-03-25 2012-03-02 Procédé façonnage des bords de panneaux en matériau dérivé du bois Active EP2688722B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12707555T PL2688722T3 (pl) 2011-03-25 2012-03-02 Sposób wykańczania krawędzi płyt z tworzywa drzewnego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011015195A DE102011015195B4 (de) 2011-03-25 2011-03-25 Verfahren und Vorrichtung zum Bekanten von Holzwerkstoffplatten sowie Holzwerkstoffplatten
PCT/EP2012/053640 WO2012130558A2 (fr) 2011-03-25 2012-03-02 Procédé et dispositif de façonnage des bords de panneaux en matériau dérivé du bois et panneau en matériau dérivé du bois

Publications (2)

Publication Number Publication Date
EP2688722A2 true EP2688722A2 (fr) 2014-01-29
EP2688722B1 EP2688722B1 (fr) 2014-12-17

Family

ID=45808899

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12707555.4A Active EP2688722B1 (fr) 2011-03-25 2012-03-02 Procédé façonnage des bords de panneaux en matériau dérivé du bois

Country Status (5)

Country Link
EP (1) EP2688722B1 (fr)
DE (1) DE102011015195B4 (fr)
ES (1) ES2531390T3 (fr)
PL (1) PL2688722T3 (fr)
WO (1) WO2012130558A2 (fr)

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WO2017137638A1 (fr) 2016-02-12 2017-08-17 Urrutia Bazán Arnaldo Système, procédé et programme de délignage de pièces au moyen de l'impression
CN108570290A (zh) * 2017-03-07 2018-09-25 伦姆胶带有限公司 用于胶粘剂激活的方法和设备

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CN108687932B (zh) * 2018-05-29 2023-08-01 临沂玉龙木业机械有限公司 一种自动开褶封边的木皮接料装置
DE102019113078A1 (de) * 2019-05-17 2020-11-19 Ima Schelling Deutschland Gmbh Bekantungsverfahren zur Anordnung eines Kantenbands an einem Plattenbauteil sowie Möbelplatte
DE102020121929A1 (de) 2020-08-21 2022-02-24 Homag Gmbh Beschichtungsvorrichtung sowie Verfahren
DE102020006861A1 (de) * 2020-11-09 2022-05-12 Siempelkamp Maschinen- Und Anlagenbau Gmbh Verfahren und Anlage zur Herstellung von Werkstoffplatten

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017137638A1 (fr) 2016-02-12 2017-08-17 Urrutia Bazán Arnaldo Système, procédé et programme de délignage de pièces au moyen de l'impression
CN108570290A (zh) * 2017-03-07 2018-09-25 伦姆胶带有限公司 用于胶粘剂激活的方法和设备

Also Published As

Publication number Publication date
DE102011015195B4 (de) 2012-12-27
WO2012130558A2 (fr) 2012-10-04
PL2688722T3 (pl) 2015-05-29
DE102011015195A1 (de) 2012-09-27
ES2531390T3 (es) 2015-03-13
WO2012130558A3 (fr) 2013-02-21
EP2688722B1 (fr) 2014-12-17

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