Method for manufacturing engraved rolling roll and apparatus...

G - Physics – 03 – F

Patent

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Details

G03F 7/20 (2006.01) B21B 27/00 (2006.01) B23K 26/08 (2006.01)

Patent

CA 2210159

Disclosed is an apparatus for manufacturing an engraved rolling roll comprising a laser beam generator for generating a laser beam, a modulator for intermitting the laser beam, a beam expander for expanding the diameter of the laser beam, a laser beam projecting portion for projecting the laser beam to the surface of a roll to form a pattern thereon, and a roll driving portion for rotating the roll. The pattern projecting process is controlled by a control portion and the pattern projecting process is displayed in real time. Also disclosed is a method for manufacturing an engraved rolling roll comprising the steps of forming a resin layer on the surface of a roll, forming a pattern by projecting the laser beam to the resin layer and engraving the pattern on the surface of the roll. The pattern is formed by projecting of the laser beam to the resin layer and the surface of the roll is engraved to a predetermined depth by a corrosive solution. Various materials of steel sheet, wood, paper, rubber, etc. can be utilized. A continuous and beautiful pattern can be obtained and the work can be carried out in a bright room. The generation of waste water can be restrained.

L'invention est un appareil de fabrication de rouleaux gravés qui comporte un laser, un modulateur servant à moduler le faisceau laser, un dispositif servant à augmenter le diamètre du faisceau laser, un dispositif servant à projeter le faisceau laser sur la surface d'un rouleau pour y créer une configuration et un dispositif d'entraînement servant à faire tourner ce rouleau. La projection de la configuration à créer est commandée en temps réel par un contrôleur. Une méthode de fabrication de rouleaux gravés dans laquelle une couche de résine est formée sur la surface d'un rouleau et la configuration est gravée sur la surface de ce rouleau en y projetant le faisceau laser est également divulguée. Une solution corrosive est utilisée pour déterminer la profondeur de la gravure. Divers matériaux peuvent être utilisés : feuilles métalliques, bois, papier, caoutchouc, etc. On peut obtenir une configuration continue de haute qualité et l'opération peut être effectuée dans une pièce éclairée. La quantité d'eau résiduaire peut être contrôlée.

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