METHOD AND APPARATUS FOR LASER ENGRAVING

摘要

A method and apparatus for laser engraving a three-dimensional pattern on a surface A moveable laser head having a plurality of individually controllable laser beams is provided A carnage slideway is provided which has a carnage axis whose length corresponds to the width of the roller that will be engraved The apparatus has a laser slideway with an axis that is perpendicular to the carnage axis and a movable laser head The laser slideway is mountable to the carnage slideway such that the laser slideway slides along the carriage axis slideway An indexing roller mechanism is provided when engraving rollers When engraving flat surfaces, a second carriage slideway, perpendicular to the first one, is substituted for the indexing roller mechanism The use of multiple laser beams enables the ability to use a novel engraving method based on pre-calculated volumes of matepal that are to be removed