Method and apparatus for applying a rubber mix to a moving surface for the manufacture of tires

A method of applying a strip of hot rubber mix under pressure to a receiving surface of a tire, comprising the steps of:

• A) actuating a main extrusion screw within a cavity to propel hot rubber mix towards a first extrusion orifice that opens proximate the receiving surface within a front zone of a collecting block;
• and
• B) producing relative movement between the collecting block and the receiving surface for advancing the hot rubber mix toward a second extrusion surface formed between the receiving surface and a profiling surface of the collecting block which forms the strip of hot rubber mix;
• wherein
• C) prior to reaching the second extrusion orifice, the hot rubber mix travels along a front wall of the collecting block which converges toward an inlet of the second extrusion surface to cause a pressure to be applied to the hot rubber mix as a function of:
• a degree of convergence of the front wall and a relative speed of movement between the receiving surface and the collecting block.