Combined injection and blow moulding machine - has pivot table for cores mounted directly against movable mould support plate

摘要

An injection moulding machine comprises an injection-blow mould assembly, a stationary mould plate and a movable mould plate which can slide along parallel guide bars; the mould cores are mounted on a pivoting table, so that the cores can alternately come into alignment with the injection mould and blow mould, This pivoting table is mounted directly on the movable mould plate so that it pivots about one of the guide bars for this mould plate. The injection mould and blow mould are pref. diametrally opposite one another relative to the guide bar, about which the table revolves, the plane passing through the axes of these two moulds and this guide bar being at 45 degrees at the horizontal. The mould plates have widened or projection portions to carry the blow mould and cores. Both the injection and blow moulds may be multiple moulds. By moulding the pivoting table directly against the movable mould plate, an overall length saving is obtd., which can be used to give a wider mould opening gap for a given overall length. In addn. the general construction is simplified.