| 摘要 |
MULTIPLE- CHUCK MACHINE FOR MAKING TUBES The machine according to the invention has a plurality of chucks which operate simultaneously causing the rotation of a plurality of metallic cores, supported by a plurality of resting racks articulated by means of hinges on a basement and arrangeable by means of actuators for example of the hydraulic type. The set of racks is flanked by a longitudinal table where the raw tubes, produced on the cores which are then covered by a thermally insulated cover, are deposited.In this position the metallic cores, still connected at the head to the chucks, are supplied with electric current which determines a controlled heating thereof by Joule effect which vulcanizes the raw rubber. |
