PROCESS AND PLANT FOR PRODUCING TYRES FOR VEHICLE WHEELS

There are described a plant and a process for producing tyres for vehicle wheels, said process comprising the steps of: a) building green tyres on respective toroidal supports in at least one building line (2) of a tyre production plant (1); b) transferring a first green tyre and the relevant toroidal support to a moulding and vulcanization unit (4A) of at least a first vulcanization line (7A) of a vulcanization station (3) of the production plant (1), said first vulcanization line (7A) being provided with a first device (8A) for transferring the toroidal support; c) transferring a second green tyre and the relevant toroidal support to a moulding and vulcanization unit (4B) of at least a second vulcanization line (7B) of the vulcanization station (3) of the production plant (1), said second vulcanization line (7B) being different from the first vulcanization line (7A) and being provided with a second transfer device (8B) different from the first transfer device (8A); d) moulding and vulcanizing the first green tyre in the moulding and vulcanization unit (4A) of the first vulcanization line (7A) for a first time interval (t1) and the second green tyre in the moulding and vulcanization unit (4B) of the second vulcanization line (7B) for a second time interval (t2) different from the first time interval (t1); wherein at least one between steps b) and c), is preceded by a step j) of transporting at least one of said green tyres and the relevant toroidal support into a holding unit (9) operatively interposed between said first vulcanization line (7A) and said second vulcanization line (7B). L'invention concerne une installation et un procédé de production de pneus pour roues de véhicules, ledit procédé comprenant les étapes suivantes : a) la construction de pneus crus sur leurs supports toroïdaux respectifs, sur au moins une ligne de construction (2) d'une installation de production de pneus (1) ; b) le transfert d'un premier pneu cru et de son support toroïdal vers une unité de moulage et de vulcanisation (4A) située sur au moins une première ligne de vulcanisation (7A) d'un poste de vulcanisation (3) de l'installation de production, ladite première ligne de vulcanisation (7A) étant équipée d'un premier dispositif (8A) permettant le transfert du support toroïdal ; c) le transfert d'un second pneu cru et de son support toroïdal vers une unité de moulage et de vulcanisation (4B) située sur au moins une seconde ligne de vulcanisation (7B) du poste de vulcanisatio