Moulding assembly for the injection of plastic materials

摘要

This invention relates to a moulding assembly for the injection of plastics materials, constituted by two blocks of light alloy, located on either side of the mould joint, and in which the lower block comprises a closed cavity containing the battery of ejectors, wherein: said cavity in the lower block receiving the battery is closed by a steel plate; said lower block also presents an open cavity adapted to receive the lower mold cavity defining insert member of the mould; the upper block also comprises an open cavity adapted to receive the upper mold cavity defining insert member; and the two blocks are provided with interchangeable steel plates, disposed opposite and in the immediate vicinity of the mould joint.