| 摘要 |
A method of, and an apparatus for, producing preforms from which bottles can be blown, are disclosed. The method includes using a piston (72) to force mouldable material (M) into a preform shaped cavity (52). The mouldable material enters via a feed pipe (68) and a valve (70). The cavity (52) is bounded by a female mould part (48) and by a male mould part (50) comprising a sleeve (56) and rod (58) with a head (60) at one end. The piston (72), as it advances, pushes the material (M) into the mould cavity (52). A blow mould cavity (54) receives the moulded preform and the core (50) so that the preform can be blown without being removed from the core. |
