A METHOD AND APPARATUS FOR MANUFACTURING ELASTOMERIC COMPONENTS OF A TYRE FOR VEHICLE WHEELS

摘要

A method and apparatus for manufacturing elastomeric material components of a tyre for vehicle wheels, said method comprising the steps of: feeding a continuous elongated element (20) from a delivery member (19) disposed close to a toroidal support (18) for application of said elongated element (20) onto the toroidal support itself; giving the toroidal support (18) a rotatory motion for circumferential distribution around its geometrical rotation axis (X), so that the elongated element (20) is circumferentially distributed on the toroidal support (18); moving said toroidal support (18) on a plurality of axes so as to carry out controlled relative displacements for transverse distribution between said toroidal support (18) and said delivery member (19) to form a component (9, 12, 13, 14, 15, 16, 17) of a tyre (3) with said elongated element (20) which is defined by a plurality of coils (20a) laid down in mutual side by side and superposed relationship in a preestablished deposition pattern depending on a predetermined cross-section outline to be given to said component (9, 12, 13, 14, 15, 16, 17), wherein the step of feeding said continuous elongated element (20) takes place by extrusion of elastomer material through at least one extrusion screw (22) and at least one gear pump (23) associated therewith.