INJECTION MOULDING METHOD FOR OPTIONAL MANUFACTURING OF MOULDED PARTS WITH OR WITHOUT A BREAKTHROUGH

摘要

An injection-moulding method for selectively manufacturing moulded parts with and without a breakthrough is disclosed. A moulded part with a breakthrough is manufactured by positioning a mould core in a mould cavity, whereas a moulded part without breakthrough is manufactured by removing the mould core at least partly from the mould cavity. The mould cavity delimited by a nozzle-side mould platen and an ejector-side mould platen. The mould core is movable relative to at least one of the mould platens, in particularly the nozzle-side mould platen, in an advance direction, where the mould core is closer to the nozzle-side mould platen and an opposite withdrawal direction.;At least one protective measure is provided for protecting the inner surface facing the mould cavity of the respective mould platen, in particularly the nozzle-side mould platen, from adverse mechanical effects during movement of the mould core in the advance direction.