| 摘要 |
A rotational molding apparatus comprising one or more annular tracks, a plurality of drive carriages traveling along said tracks, rotary molds each of which being supported by supporting means are coupled to said several carriages through the intermediary of said supporting means, rotatory mechanisms each of which transmits a rotational motion to a rotating shaft of each of said several molds from a drive source disposed in each of said carriages, a heating tunnel for each of said annular tracks, said tunnel housing a part of said annular track and permiting the passage therethrough of said carriages and molds, and a cooling tank for each said annular tracks, said cooling tank being provided in the course of the molds emerging from the heating tunnel after passage therethrough, said cooling tank being adapted to cool said molds as they pass therethrough. The apparatus is suitable for the mass production of synthetic resin molded articles of good quality with improved productive efficiency and ease of controlling production and heating temperature. |
