METHOD OF MOLDING A VULCANIZED FOAM RUBBER SOLE FOR FOOTWEAR AND RELATED SOLE OF VULCANIZED FOAM RUBBER FOR FOOTWEAR

摘要

A method of molding a sole (6) in vulcanized foam rubber for footwear, comprising the phases of preparing a rubber in the form of strip, preformed and/or granules,mixing sa id rubber inside a loading and mixing chamber ( 10), preparing a mold ( 4) for the molding of a footwear sole(6), said mold (4) defining a molding chamber ( 8) counter-shaped wi th respect to a footwear sole (6), conveying the mixed material inside said molding chamber ( 8) and mol ding the footwear sole ( 6) inside the molding chamber ( 8), removing the f ootwear sole (6) from said mold (4). Advantageously, the rubber comprises a foaming agent able to generate an expansion of the material inside the molding chamber ( 8) during molding, so as to uniformly fill said molding chamber (8) with the foam rubber; the method comprises the phase of vulcanization of the foam material inside the molding chamber(8).