Method for turning up tire structure component on curving drum for producing green tires, involves expanding tire carcass through curving process by moving roller levers by radial and axial feed devices

摘要

A tire carcass (11) held by core clamps (9) is positioned on curving drum (16) while moving core clamps together in axial direction by drive unit (18). The roller levers (4) arranged rotationally symmetrically around drum axis comprise turn-up rollers (3) at front end, and is coupled to lever (12) at rear end. The tire carcass is expanded through a curving process by moving roller levers by radial and axial feed devices (5,6). The protruding tire components (8) of tire carcass are rolled and connected by moving turn-up rollers along a predetermined envelope curve at tire carcass.