Abstract: Apparatus for molding a plastic seal inside a closure for closing a container, having a line for transferring the closures through a closure heating station, a station for dispensing and preforming plastic material in the pasty state, suitable to deposit a dose of material inside a respective closure and preform each dose dispensed inside each closure in an annular configuration, and a final forming station, in which the preformed annular dose is molded so as to form the final seal inside the closure.
Abstract: The apparatus comprises a rotating carousel provided with pressure-molding units for items made of plastics. Each unit comprises a mold having a molding cavity into which a dose of plastics is brought by means of a feeding head which is rotatable outside of the carousel, said dose being removed from an extrusion device by means of removal elements which are rigidly coupled to the head.