DE2738916

A device for injection moulding a series of articles held together by a connecting web comprises a rotating wheel having a set of cavities connected by a peripherally extending channel, which wheel rotates past an injection shoe. Each cavity is associated with a core pin which is slidable along a transverse groove into and from the operative position by a cam follower. Each cam follower engages a cam groove in a plate stationarily located beside the wheel. There may be more than one core pin associated with each cavity and means may be provided to rotate each core pin at a point in the cycle to remove a threaded article from it. Alternatively the core pins may be radially reciprocable. Articles of complex shape can be made quickly and easily.