METHOD AND DEVICE FOR EXAMINING ROD-SHAPED PRODUCTS OF THE CIGARETTE INDUSTRY

• Main Authors: BREITHAUPT, Karl-Heinz, CZARNOTTA, Michael
• Format: Patent
• Language: English; French; German
• Published: 28.12.2022
• Subjects: CIGARETTES; CIGARS; CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; HUMAN NECESSITIES; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MACHINES FOR MAKING CIGARS OR CIGARETTES; MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGINGARTICLES OR MATERIALS; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES; MEASURING; MOUTHPIECES FOR CIGARS OR CIGARETTES; PACKING; PERFORMING OPERATIONS; PHYSICS; SMOKERS' REQUISITES; STORING; TESTING; TOBACCO; TOBACCO SMOKE FILTERS; TRANSPORTING; UNPACKING

A method and device for examining rod-shaped products of the cigarette industry, having a cylindrical lateral surface and two end faces formed by two filter elements arranged at opposite ends, the product having smokable material between the two end faces, by: a) irradiating the lateral surface using examination light whereby the examination light penetrates through the lateral surface at least partially into the product and at least partially exits again through one end face, the beams of which are incident on the lateral surface at an angle of at least 30° in relation to the longitudinal extension of the product; b) acquiring the examination light exiting the end face of the product using an electro-optical receiver, the main viewing direction of which is directed onto the end face; and c) evaluating the brightness or light intensity of the examination light exiting the end face and acquired by the electro-optical receiver.