The core die which does the device null annular condition which possesses the single reciprocate arm in order to producing the tire

摘要

Assembly to build continuous reinforcement cords at the mold, for a vehicle pneumatic tire, has a hollow oscillating arm with a guide to lay the cord in succession, with synchronized end pressers. The assembly to build a continuous reinforcement cord (4) into a pneumatic tire carcass has a guide (6) for the cord to slide freely. An arm (31) oscillates with a movement around the geometric rotation axis (31R), and the end of the arm which carries the guide at the other end is a beak (31T) turned inwards. A control sets the arm oscillations, so that the guide follows a cyclic path in a reciprocating movement to place the reinforcement cord in successive lies. Press units (2G,2D) are near the ends of each laying path the hold the reinforcement cord in place at the mold (1), with pressing actions which are synchronized with the movements of the reinforcement cord guide.