| 摘要 |
The present invention relates to a quick opening system of two mould support elements (1, 1'), particularly for moulding foamed EVA (Ethylene Vinyl Acetate), said mould support elements being comprised of an upper mould support element (1) and a lower mould support element (V), supported by a vertical structure comprised of column elements (2), said lower mould support element (V) being moved by a toggle mechanism (4, 4', 5, 5'), said system being characterised in that the movement of said toggle mechanism (4, 4', 5, 5') being realised by an asynchronous motor (15) acting on an Archimedean screw (8), by transmission means with interposition of a friction (16), said toggle mechanism (4, 4', 5, 5') being coupled on said Archimedean screw (8). |
