| 摘要 |
<p>The machine according to the invention has a plurality of chucks (3,4) which operate simultaneously causing the rotation of a plurality of metallic cores (5), supported by a plurality of resting racks (6,7) articulated by means of hinges (9) on a basement and arrangeable by means of actuators (13) for example of the hydraulic type. The set of racks (6,7) is flanked by a longitudinal table (16) where the raw tubes, produced on the cores (5) which are then covered by a thermally insulated cover (19), are deposited.In this position the metallic cores (5), still connected at the head (1,2) to the chucks (3,4), are supplied with electric current which determines a controlled heating thereof by Joule effect which vulcanizes the raw rubber.</p> |
