TREAD REMOVAL METHOD AND APPARATUS

摘要

TREAD REMOVAL METHOD AND APPARATUS A method and apparatus for automatically removing an annular grooved tread from an initially closed segmented mold is described. The segmented mold has an annular cavity and a central core, and has both an axial direction and a radial direction. The method comprises the steps of withdrawing a first plurality of segments, restraining radial movement of the tread at a plurality of locations from which segments have been withdrawn, withdrawing a second plurality of segments, retracting the restraint, and then removing the tread from the core by using an axially movable annular ring located above the upper half of the mold. The annular ring includes a plurality of push off devices, each device having a spring loaded radially retractable tread pusher component.