Method and apparatus for producing figured veneer

B - Operations – Transporting – 27 – D

Patent

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Details

B27D 1/02 (2006.01) B27D 1/00 (2006.01) B27L 5/00 (2006.01) B27L 5/08 (2006.01)

Patent

CA 2705088

A method and apparatus for making a piece of figured veneer comprise means for, and the steps of, softening lignin in a sheet of veneer, pressing the sheet of veneer between complementary corrugating press rollers having a pitch and a depth to press the sheet of veneer into a wavy or corrugated configuration, and surfacing the pressed sheet of veneer to remove crests of the corrugations, making the piece of figured veneer. Another method and apparatus for making a piece of figured veneer, comprise means for, and the steps of, softening lignin in a sheet of veneer, placing the sheet of veneer onto a wavy or corrugated surface of a plate, pressing the sheet of veneer using a press roller so that the roller presses the sheet of veneer against the surface to achieve a wavy or corrugated veneer, and surfacing the pressed sheet of veneer to remove peaks of the corrugations, making the piece of figured veneer. Yet another method and apparatus for making a piece of figured veneer, comprise means for, and the steps of, softening lignin in a sheet of veneer, placing the sheet of veneer onto a corrugated surface of a plate having such a wavy or corrugated surface, pressing the sheet of veneer onto the troughs and peaks of the surface using a flexible platen having a corrugated surface so that the corrugated surface of the platen presses the sheet of veneer against the corrugated surface of the plate to achieve a wavy or corrugated veneer, and surfacing the pressed sheet of veneer to remove peaks of the corrugations, making the piece of figured veneer.

L'invention concerne un procédé et un appareil permettant de fabriquer un morceau de placage façonné comprenant des moyens, et les étapes correspondantes, pour ramollir la lignine d'une feuille de placage, comprimer la feuille de placage entre des rouleaux de presse cannelés complémentaires ayant un pas et une profondeur pour comprimer la feuille de placage dans une configuration ondulée ou cannelée, et surfacer la feuille de placage comprimée pour enlever les crêtes des cannelures, fabriquant ainsi le morceau de placage façonné. Un autre procédé et un autre appareil permettant de fabriquer un morceau de placage façonné, comprend des moyens, et les étapes correspondantes, pour ramollir la lignine d'une feuille de placage, placer la feuille de placage sur une surface de plaque ondulée ou cannelée, comprimer la feuille de placage en utilisant un rouleau de presse de telle sorte que le rouleau comprime la feuille de placage contre la surface pour obtenir un décor ondulé ou cannelé, et surfacer la feuille de placage comprimée pour enlever les pics des cannelures, fabriquant ainsi le morceau de placage façonné. Encore un autre procédé et un autre appareil permettant de fabriquer un morceau de placage façonné, comprend des moyens, et les étapes correspondantes, pour ramollir la lignine d'une feuille de placage, placer la feuille de placage sur une surface cannelée d'une plaque ayant une telle surface ondulée ou cannelée, comprimer la feuille de placage sur les creux et les crêtes de la surface en utilisant un plateau souple ayant une surface cannelée de telle sorte que la surface cannelée du plateau comprime la feuille de placage contre la surface cannelée de la plaque pour obtenir un placage ondulé ou cannelé, et surfacer la feuille de placage comprimée pour supprimer les pics des cannelures, fabriquant ainsi le morceau de placage façonné.

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