| 摘要 |
Device for moulding a plastic component having at least one undercut. The device (100) for moulding a plastic component (15) from a plastic comprising a dissolved gas comprises: - a fixed block (1) comprising a first half-cavity (2) and a mobile block (3) comprising a second half-cavity (4), the fixed block (1) and the mobile block (3) joining along a joining plane (5) and the first and second cavities (2, 4) delimiting a moulding cavity (6) designed to receive the plastic, having a first volume (7) and having a main direction of demoulding (8), - means (28) of separating the mobile block (3) from the fixed block (1), allowing the moulding cavity (6) to be changed from the first volume (7) to a second volume (9); - at least one mobile insert (11) placed in the fixed block (1) bearing at least one mobile element (16', 25), thrusting means (24) urging the mobile insert (11) toward the mobile block (3), the thrusting means being configured so that the mobile insert (11) accompanies the separation of the mobile block (3) between the first volume (7) and the second volume (9), keeping the separation between the second half-cavity (4) formed in the mobile block (3) and the mobile element or elements (16', 25) borne by the mobile insert (11) constant, - means of moving the mobile element or elements (16', 25) in a secondary direction not parallel to the main direction of demoulding during complete opening. |
