G.d Societa' Per Azioni

G.d S.p.a.

Marco Bencivenni

Armando Neri

Luca Cerati

Maurizio Cotti

Eura Trevisonno

Tobacco products (), typically cigarettes, are manufactured on a line () including a cigarette maker () and a filter tip attachment machine (), both equipped with a number of production devices and units connected to respective master control units () and visual display units (). Key characteristics of sample tobacco products () are tested by an auxiliary inspection unit () forming part of a monitoring and control system associated with the manufacturing line (), and connected up to a common interface network () so that signals reflecting the monitored characteristics can be fed back to a number of control units () associated respectively with the devices and the units of the line () on which the characteristics in question depend, and programmed to pilot corrective actions in response to the feedback signal.

System for monitoring and controlling machines used in the manufacture of tobacco products

A cigarette, with a cigarette paper and a filter paper of different colors and separated by a boundary line with a given nominal position, is fed past a pair of optical sensors located on either side of the nominal position of the boundary line. The optical sensors generate a pair of electric signals each related to the color of the respective monitored portion of the cigarette, and which are compared with each other; and, in the event the difference between the signals is below a given threshold value, an error signal is generated for rejecting the cigarette.

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Bologna, Italy

Marco Bencivenni