METHOD AND APPARATUS FOR PERFORATING COATING MATERIAL FOR COATING ROD-LIKE ARTICLE IN TABACCO MANUFACTURING INDUSTRY

摘要

PURPOSE: To provide a method and a device for piercing a coating material for coating a bar-shaped article in a tobacco working industry. CONSTITUTION: The coating material 13 is guided through a piercing band 53 and pierced by a laser beam 56 there. At this time, the laser beam is radiated in a pulsating state corresponding to the pattern of guidance to be formed and the pulse width and intensity of the laser beam are controlled depending on a machine speed measured in a speed recorder 69 by a control mechanism 58.