INJECTION MOULD HAVING A CLOSURE IN THE INJECTION CHANNEL PARTICULARLY FOR MOULDED SHAPES OF POLYURETHANE

摘要

An injection mould is disclosed for the manufacture of moulded shapes from an injectable material, with a device for closing the injection channel by means of an elastic deformable body, particularly in the processing of foamable synthetic materials. The closing device comprises a diaphragm-type sealing disk, particularly of silicone, which is housed in a cross-bore and held therein by an insert. The diaphragm can be operated approximately perpendicularly to the injection channel by compressed air or by a piston and is substantially arranged in a plane parallel to the axis of the injection channel.