INJECTION COMPRESSION MOULD WITH GUIDING MEANS

摘要

A mould for injection compression moulding of an article comprises a female mould part (10) and a core part (12) for mounting in use on the platens of an injection moulding machine for movement towards and away from one another between an open and a closed position. At least one of the parts is adjustable relative to the associated platen to permit the parts to be axially aligned with one another. Three or more guide fingers (14) are provided on one of the mould parts and distributed about the core axis to be received in recesses of complementary shape in the other mould part as the mould parts approach the fully closed position. Each finger (14) having two parallel sided locating sections (14a, 14b) that are spaced from one another along the length of the finger (14). The locating section (14b) nearer the free end of the finger (14) is narrower than the other (14a) and the length of each locating section (14a, 14b) is at least equal to the final part of the stroke of the platens during which compression of the injected plastics material takes place.