BLOW MOLDING MACHINE OPERATING IN ACCORDANCE WITH THE REHEAT METHOD FOR PRODUCING HOLLOW PLASTIC ARTICLES

摘要

To be able to guide the parisons in a reheat type blow molding machine having separate heat and blow paths along the path where they are heated up to blow temperature, i.e., in narrowly spaced relationship past the heating devices, with the spacing being independent of the pitch of the mold cavities on the blow path, and to be able to blow a plurality of parisons on the blow path at the same time, the present invention suggests a straight heating path (1) and at least one straight blow path (7), and that the transportation device (2) for receiving parisons in close pitch should comprise arms (4) which laterally project in such a manner that the deflection radius (r) of the transportation device (2) of the heating path (1) is smaller than the deflection radius (R) of the mandrel type receiving means, and that at least one transfer device (11) should be interposed between a deflection portion of the heating path (1) and the portion of the blow path (7) which faces the deflection portion, and should be controlled in such a manner that it grips the parisons and puts them on the blow path when the parisons on the deflection portion of the heating path (1) are spaced apart from one another at a distance corresponding to the spacing of the blow mold cavities on the blow path (7).