Patent ID: 9061476
Filing Date: 2015-06-23
Classification: B29D

Abstract:
1. A process for assembling tyres, comprising: forming a carcass sleeve on a building drum, said carcass sleeve comprising a carcass ply attached to a pair of annular anchoring structures; forming an outer sleeve on an auxiliary drum, said outer sleeve comprising at least one belt layer and a tread band; using a first transfer unit, in the form of a first robotic arm with at least six movement axes, on the auxiliary drum for moving the auxiliary drum carrying the outer sleeve formed thereon to an assembly station; picking up the outer sleeve from the auxiliary drum while the auxiliary drum is held by the first transfer unit at one axial end of the auxiliary drum, coaxially with a footstock of the assembly station at the other axial end of the auxiliary drum; using a second transfer unit, in the form of a second robotic arm having at least six movement axes, for moving the building drum carrying the carcass sleeve formed thereon to the assembly station; engaging the building drum carrying the carcass sleeve formed thereon to the footstock and a mandrel at the assembly station; positioning the outer sleeve at a location radially external to the carcass sleeve formed on the building drum while the building drum is held in the assembly station by the mandrel at one axial end of the building drum and the footstock at the other axial end of the building drum; coupling the carcass sleeve to said outer sleeve; and removing the assembled tyre from the assembly station.