Process for the control of the quality and of the production of transmission belts

A process for the control of the quality and of the production of endless transmission belts of elastomeric material, produced on a forming sleeve in an installation having an automated production cycle, comprising the following steps:

• a) measuring and storing a plurality of parameters related to the production cycle;
• b) periodically comparing each of said parameters with a first interval of values defined around a nominal value of such parameter, and emitting an enabling signal when the parameter falls within such first interval;
• c) should one of said parameters fall outside said first interval, comparing such value with a second interval wider than the previous one and formed by an upper range and a lower range with respect to said first interval;
• d) should said parameter be within said second interval for a time less than a corresponding pre-set duration associated with each of the parameters of the said plurality, producing a signal of conditioned acceptability suitable for activating one or more checks in at least one checking machine downstream from the installation or from part of said installation;
• e) should said parameter fall outside said second interval, or inside said second interval for a period of time greater than a corresponding duration pre-set for that parameter, producing a rejection signal.