Complex forming device for producing a complex product from non-protruding rubber layers

A device (100) for forming a profiled product so as to produce a complex product from non-protruding rubber layers, in which the device comprises an extrusion device for forming the profiled product based on a rubber mixture, the extrusion device comprising a rotating roller (112), an inlet orifice allowing the rubber mixture to flow, and a vault circumferentially covering at least part of an outer surface (112a) of the roller (112), the vault having a wall bearing, on its inner surface oriented towards the roller (112), projecting threads so as to delimit with the surface of the roller a chamber for plasticizing the rubber mixture, the rubber mixture being driven from the inlet orifice towards an extrusion orifice into a gap defining a profile of the product, delimited by the wall of the vault and the outer surface of the roller, the roller (112) comprising a pair of shoulders of predetermined equal diameter, with a shoulder in correspondence with each of the two transverse ends of the vault, where the inlet orifice and the extrusion orifice are located, respectively, and with an outer flange (114) and an inner flange (116) being mounted on the two shoulders,

• wherein the device (100) further comprises:
• at least one pair of blades (125) separated by a predetermined distance between the blades relative to edges of the profiled product;
• an additional roller (122) that allows the blades (125) of the device to pass under the profiled product, the additional roller (122) comprising a rotating roller that rotates about its axis, having a substantially circumferential outer surface (122a) and having a center through which an axis of rotation of the roller is defined, the additional roller (122) extending axially between two opposite ends that define a predetermined length of the additional roller;
• and
• one or more supports (127) that support the additional roller (122) in such a way as to allow the additional roller (122) to rotate about its axis of rotation, and
• wherein the blades (125) cut a product emerging from the extrusion device so as to cut a precise width of the profiled product in order to direct the profiled product towards the additional roller (122) so that it is assembled in a complex form from non-protruding rubber layers.