| 摘要 |
<p>A plastic material moulding apparatus (1) , in particular for moulding vehicle body parts, includes a mould (2) consisting of a punch (3) and a matrix (4) , cooperating with each other to define a cavity (5) having the shape of a piece (6) to be moulded and movable with respect to each other; a bottom plate (7) which integrally carries a fixed body (20) of the punch (3), and an extractor element (25), supported by the bottom plate (7) and movable with respect to the bottom plate (7) and to the body (20) along a sliding direction (D) ; the extractor element is closed in a loop to define an extraction ring (25) arranged substantially around the fixed body (20) of the punch (3) and shaped so as not to interfere, while moving along the sliding direction (D) , with the body (20) .</p> |
