Control method for gumming device, especially in tobacco industry

摘要

The method involves determining one time interval during which a certain region of the packaging material (4) passes a spray pistol (9) nozzle (11) for dispensing the adhesive, opening the nozzle for a defined period with a defined phase lead with respect to the first period, defining a third period during which adhesive is dispensed from the nozzle, defining a common section of the first and third periods and signaling a fault if the common section is smaller than the third period