WO1996014971A1 - Procede pour la fabrication d'elements de panneaux revetus - Google Patents

Procede pour la fabrication d'elements de panneaux revetus Download PDF

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Publication number
WO1996014971A1
WO1996014971A1 PCT/DE1994/001339 DE9401339W WO9614971A1 WO 1996014971 A1 WO1996014971 A1 WO 1996014971A1 DE 9401339 W DE9401339 W DE 9401339W WO 9614971 A1 WO9614971 A1 WO 9614971A1
Authority
WO
WIPO (PCT)
Prior art keywords
edge
blank
veneer
coating sheet
sheet
Prior art date
Application number
PCT/DE1994/001339
Other languages
German (de)
English (en)
Inventor
Hermann Fendt
Original Assignee
Hermann Fendt
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE4316368A priority Critical patent/DE4316368C2/de
Application filed by Hermann Fendt filed Critical Hermann Fendt
Priority to SI9430285T priority patent/SI0738203T1/xx
Priority to AT95900622T priority patent/ATE182832T1/de
Priority to DK95900622T priority patent/DK0738203T3/da
Priority to EP95900622A priority patent/EP0738203B1/fr
Priority to PCT/DE1994/001339 priority patent/WO1996014971A1/fr
Publication of WO1996014971A1 publication Critical patent/WO1996014971A1/fr

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
    • B29C63/04—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like

Definitions

  • the invention relates to a method for producing coated, in particular veneered, panel elements, in particular panels, with at least one profiled, preferably with a rounded, longitudinal edge.
  • the measures according to the invention result in a lamination or veneer extending in one piece over the side surfaces and the other surface, as a result of which there are no visible bumps or color differences.
  • the lamination or veneer process can be designed in several stages by first veneering the top of the element and only then the side flanks. This advantageously enables the use of conventional continuous presses, which ensures extremely inexpensive production. Because a stiffening rib on the veneer side remains when the edge webs are severed, a reliable stabilization of the veneer sheet etc. is ensured in the intermediate stage between the individual work steps, which ensures an exact and exact working method even with simple means.
  • the visible, clear width of the edge groove or grooves can correspond at least to the development length of the respectively assigned flank of the finished element. This ensures that the stiffening rib that remains when cutting through the edge webs engages under the blank underside when the coating is pressed onto the side flank, so that the entire side flank is reliably veneered etc.
  • Another expedient measure can be that in the case of elements in the form of panels intended for tongue and groove connections, the grooves provided for this purpose are only cut after the veneer etc. This ensures that the side flanks are veneered not only up to the groove but also in the area of the lower groove cheek. At the same time, exact edges are achieved.
  • a further, appropriate further development of the superordinate measures can consist in the fact that the blank consists of strips which are glued together and which are arranged in such a way that annual rings which run essentially vertically result over the entire width of the element. This course of the annual ring ensures that the surface structure of the blank does not become apparent on the visible veneer, even if a barrier veneer is not used. A single-layer lamination or veneer etc. is therefore advantageously possible. Further advantageous refinements and expedient further developments of the superordinate measures are specified in the remaining subclaims and can be seen from the example description below.
  • Figures 1 to 7 successive process steps based on the production progress in the manufacture of a panel according to the invention.
  • FIG. 1 shows a panel blank 1 which has already been prepared for veneering. This is provided with two edge grooves 2 which run along its lateral edges and are open towards the upper visible side. These can have been milled into the board-shaped starting piece with a rectangular cross-section from above by means of a form cutter.
  • the board-shaped starting piece can expediently consist of strips 3 which are glued to one another laterally and which are arranged in such a way that annual rings running essentially standing over the entire width of the blank result, as indicated at 4 in FIG. This standing course of the annual rings 4 ensures that even if a barrier veneer is not used, the surface structure of the panel blank 1 is not shown on the visible veneer which can be applied directly thereon.
  • the edge grooves 2 are each delimited by an edge web 5 left when the grooves are milled, the height of which corresponds to the height of the mean use of the blank 1.
  • the inner flank of the edge grooves 5 is designed here as a radius-shaped rounding 6, corresponding to the desired side rounding of the finished panel, as can be seen from FIG. 7.
  • the width B of the starting piece or blank 1 is accordingly larger by the foot width of the edge grooves 2 and the thickness of the edge webs 5 than the width b of the use of the blank 1 which will later be required as a veneer carrier.
  • a veneer sheet 7 is glued and pressed onto the blank 1 prepared in this way, as can be seen in FIG. 2, which veneer extends continuously over the central surface of the useful piece of the blank 1, which is delimited by the edge grooves 2, and also over the tops of the edge webs 5 extends.
  • An environmentally friendly dispersion glue can be used to glue the veneer sheet 7, as can also be the case for gluing the strips 3.
  • the veneer sheet 7 is glued over its entire contact surface and accordingly adheres not only to the surface of the central utility piece, but also to the lateral edge webs 5.
  • the edge grooves 2 are covered by the veneer sheet 7 placed on them.
  • the edge webs 5 are severed.
  • the separating cut required for this can be carried out by means of a circular saw blade or disc milling cutter which engages from the side. be performed, as indicated in Figure 3 at 9.
  • the separating cut 8 is carried out at a distance below the veneer sheet 7, so that a stabilizing rib 10 attached to the veneer sheet 7 remains, which stabilizes the edge region of the veneer sheet 7 which now projects freely over the middle utility piece.
  • the panel blank is machined down to the inner flanks of the edge grooves 2, that is to the extent necessary, by removing the material from the side.
  • the protrusion of the blank width B over the usable width b is practically removed, so that the desired usable piece la results.
  • the lateral material removal can take place by means of a side milling cutter 11, as indicated in FIG. 4.
  • the stiffened edge area of the veneer sheet which is not touched by this lateral material removal, protrudes over the lateral flanks of the utility piece la, which have a rounded longitudinal edge.
  • the steps on which FIGS. 3 and 4 are based are carried out in order to cut through the edge webs 5 and to process the blank down to the width 2.
  • the undersides of the edge strips of the veneer sheet projecting laterally over the utility piece la and / or the protruding rounded side flanks 12 of the utility piece la are then glued.
  • An environmentally friendly dispersion glue can in turn be used for this.
  • the projecting edge strips of the veneer sheet 7 are then pressed onto the side flanks 12 using conventional continuous presses, as indicated in FIG. 5 by a pressure roller 13.
  • Continuous presses of conventional design can also be used in the veneer process on which FIG. 2 is based.
  • heating can expediently take place, for example by means of infrared radiation.
  • the stiffening ribs 10 fixed on the veneer side are placed in such a way that they do not hinder the veneer process for the side flanks 12.
  • the stiffening ribs 10 of the applied veneer sheet 7, as shown in FIG. This is achieved in that the clear width of the edge grooves in the area of the top of the panel corresponds at least to the development length of the associated flank of the panel 1 a or the finished panel.
  • the stiffening ribs 10 in each case to engage in an associated groove 10a of the utility piece la, as indicated on the right in FIG. 6. In this case, at least the rib width consumes less veneer.
  • the groove 10a which is expediently designed here as a bottom edge groove which is open on both sides, can be produced in connection with the milling process on which FIG. 4 is based.
  • the edges of the veneer sheet 7 projecting over the underside of the utility piece la are cut off flush with the underside of the utility piece la, as indicated in FIG. 7 by a side milling cutter 14 acting from below.
  • a side milling cutter 14 acting from below.
  • the axis of the side milling cutter 14 is slightly tilted relative to the panel surface, so that in the cutting area there is a slight phase approximately in the range from seven to new degrees, here eight degrees. This brings about reliable edge protection, so that the veneer does not break out in the area of the veneer edge.
  • the panel 15 obtained after carrying out this operation accordingly consists of a central part formed by the utility piece la and an applied thereon, which extends in one piece over the lateral flanks and which is formed by the veneer sheet 7 and which is then subjected to a final treatment, for example by grinding and painting.
  • the lateral grooves 16 required for this are cut subsequently, ie after the veneer process has been carried out, as indicated in FIG. 7 on the right. This ensures that there are exact edges in the area of the lateral groove boundaries. At the same time this will ensures that the lower groove cheek is also veneered clean, as indicated in Figure 7 at 7a.
  • the utility piece la is constructed in such a way that there are essentially standing annual rings over its width, so that even with visible veneer applied directly to the utility piece la there is no fear of the utility structure being marked on the veneer and accordingly a Sperrfur ⁇ nier can be dispensed with.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)

Abstract

Dans la fabrication d'éléments de panneaux plaqués, tels que des panneaux de lambris (15) etc. à bords longitudiaux profilés approximativement arrondis (6), un joint en about de placage peut être évité dans la région des bords longitudaux (6) par utilisation d'une ébauche (1) de largeur supérieure à la dimension finale, dont la section utilisable est délimitée par des rainures en bordure (2), qui sont elles-mêmes limitées à l'extérieur par des nervures en bordure (5) sur lesquelles peut prendre appui une feuille de placage (7) lorsque celle-ci est appliquée, l'ébauche (1) étant ensuite mise latéralement, à la dimension finale, et la feuille de placage (7) etc. pressée sur les flancs ainsi obtenus.
PCT/DE1994/001339 1993-05-15 1994-11-12 Procede pour la fabrication d'elements de panneaux revetus WO1996014971A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE4316368A DE4316368C2 (de) 1993-05-15 1993-05-15 Verfahren zur Herstellung von beschichteten Tafelelementen
SI9430285T SI0738203T1 (en) 1994-11-12 1994-11-12 Process for producing coated panel units
AT95900622T ATE182832T1 (de) 1994-11-12 1994-11-12 Verfahren zur herstellung von beschichteten tafelelementen
DK95900622T DK0738203T3 (da) 1994-11-12 1994-11-12 Fremgangsmåde til fremstilling af beklædte pladeelementer
EP95900622A EP0738203B1 (fr) 1994-11-12 1994-11-12 Procede pour la fabrication d'elements de panneaux revetus
PCT/DE1994/001339 WO1996014971A1 (fr) 1993-05-15 1994-11-12 Procede pour la fabrication d'elements de panneaux revetus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4316368A DE4316368C2 (de) 1993-05-15 1993-05-15 Verfahren zur Herstellung von beschichteten Tafelelementen
PCT/DE1994/001339 WO1996014971A1 (fr) 1993-05-15 1994-11-12 Procede pour la fabrication d'elements de panneaux revetus

Publications (1)

Publication Number Publication Date
WO1996014971A1 true WO1996014971A1 (fr) 1996-05-23

Family

ID=25925971

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1994/001339 WO1996014971A1 (fr) 1993-05-15 1994-11-12 Procede pour la fabrication d'elements de panneaux revetus

Country Status (2)

Country Link
DE (1) DE4316368C2 (fr)
WO (1) WO1996014971A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1683929A3 (fr) * 2005-01-21 2007-03-07 Fritz Egger GmbH & Co. Procédé de fabrication d'un panneau, notamment d'un panneau de plancher, et panneau, notamment panneau de plancher
JP2014193553A (ja) * 2013-03-28 2014-10-09 Sumitomo Bakelite Co Ltd 化粧板の製造方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE528583C2 (sv) * 2006-03-27 2006-12-19 Tarkett Ab Sätt att tillverka en golvbräda
DE102008008443B4 (de) * 2008-02-11 2020-09-03 Lisa Dräxlmaier GmbH Verfahren zur Herstellung eines Bauteils und Interieurkomponente
DE102008017891B3 (de) * 2008-04-09 2009-11-26 Düspohl Maschinenbau Gmbh Verfahren zur Beschichtung von gefalzten Profilelementen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3037233A1 (de) * 1973-11-15 1982-04-29 IMA - Klessmann GmbH & Co KG, 4830 Gütersloh Verfahren und vorrichtung zum beschichten von profilierten kanten an holz- oder holzwerkstoffplatten
DE3631325A1 (de) * 1986-04-10 1987-10-15 Wtz Holzverarbeitende Ind Verfahren zum ummanteln von profilen aus holzpartikelwerkstoffen
EP0370353A2 (fr) * 1988-11-19 1990-05-30 Gruber & Weber Procédé de fabrication d'un laminat de postformage
EP0389400A2 (fr) * 1989-01-20 1990-09-26 José Miguel Menendez Ochoa Procédé de postformage de revêtements
EP0545390A1 (fr) * 1991-12-02 1993-06-09 Franz Dreer Panneau avec un bord postformé

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2544935A (en) * 1945-03-17 1951-03-13 Orner Otto Harald Method of producing boards
US3553048A (en) * 1967-05-29 1971-01-05 Weyerhaeuser Co Method of making a surface overlay product
IT1153343B (it) * 1982-11-03 1987-01-14 Stefani Spa G Procedimento, nonche' dispositivo strisce di impiallacciatura o strisce di rivestimento in materiale sintetico ed elastico, sui bordi profilati di un pannello
DE3415053A1 (de) * 1984-04-21 1985-10-24 Fritz Wilmsmeyer GmbH & Co KG, 4972 Löhne Verfahren und vorrichtung zum anleimen von kantenstreifen an profilierten werkstuecken

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3037233A1 (de) * 1973-11-15 1982-04-29 IMA - Klessmann GmbH & Co KG, 4830 Gütersloh Verfahren und vorrichtung zum beschichten von profilierten kanten an holz- oder holzwerkstoffplatten
DE3631325A1 (de) * 1986-04-10 1987-10-15 Wtz Holzverarbeitende Ind Verfahren zum ummanteln von profilen aus holzpartikelwerkstoffen
EP0370353A2 (fr) * 1988-11-19 1990-05-30 Gruber & Weber Procédé de fabrication d'un laminat de postformage
EP0389400A2 (fr) * 1989-01-20 1990-09-26 José Miguel Menendez Ochoa Procédé de postformage de revêtements
EP0545390A1 (fr) * 1991-12-02 1993-06-09 Franz Dreer Panneau avec un bord postformé

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1683929A3 (fr) * 2005-01-21 2007-03-07 Fritz Egger GmbH & Co. Procédé de fabrication d'un panneau, notamment d'un panneau de plancher, et panneau, notamment panneau de plancher
JP2014193553A (ja) * 2013-03-28 2014-10-09 Sumitomo Bakelite Co Ltd 化粧板の製造方法

Also Published As

Publication number Publication date
DE4316368C2 (de) 1996-07-25
DE4316368A1 (de) 1994-11-17

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