| 摘要 |
A method for manufacturing tyres (2) for vehicle wheels is described, comprising the steps of:
a) building in a building station (14) a substantially cylindrical carcass structure (3) comprising at least one carcass ply (10) operatively associated to annular anchoring structures (7) axially spaced apart from each other;
b) manufacturing in a finishing station (17) a substantially cylindrical sleeve comprising a tread band (5) applied at a radially outer position with respect to a belt structure (4) comprising at least one belt layer (12) including reinforcing cords substantially parallel to the circumferential development direction of the sleeve, the step b) comprising the steps of: b1) assembling a first belt structure (4) at a first working position (A) on a first auxiliary drum (19) of the finishing station (17); b2) applying a tread band (5) at at least one second working position (B) at a radially outer position with respect to a second belt structure (4) previously assembled on at least one second auxiliary drum (20) of the finishing station (17), the application step being carried out by laying down according to a predetermined path at least one continuous elongated element (27, 28) of green elastomeric material at a radially outer position with respect to the second belt structure (4); b3) positioning the first auxiliary drum (19) supporting the first belt structure (4) at the second working position (B); b4) positioning the second auxiliary drum (20) supporting the substantially cylindrical sleeve thus obtained at a picking position (D) of the finishing station (17);
c) transferring the substantially cylindrical sleeve from the picking position (D) of the finishing station (17) at a radially outer position with respect to a carcass structure (3) built in the meantime in the building station (14);
wherein the steps from b1) to b4) are repeated cyclically and wherein both steps b1) and b2), and steps b3) and b4) are carried out at least in part simultaneously with one another. |
