EXTRUSION HEAD FOR RUBBER COMPOUND COMPRISING DEVICE FOR COATING EXTRUDED PRODUCT AND COATING DEVICE INTENDED TO BE MOUNTED ON EXTRUSION HEAD

摘要

PROBLEM TO BE SOLVED: To manufacture an extruded product with a definite and precise profile. SOLUTION: An extrusion head 3 is provided with an inlet passage 41 for a rubber compd. to pass into an accumulation chamber emerging in an extrusion orifice 6 through which the rubber compd. is extruded and the extrusion orifice 6 includes a wall 8 acting cooperatively with a rotating roller 7 in order to define the profile of a product and the extrusion head comprises a coating device 15 which puts a material based on the rubber compd. into the accumulation chamber 4 directly between the inlet passage 41 and the extrusion orifice 6 and distributes this material based on the rubber compd. on the surface of the roller 7 in order to superpose, from above, the product issuing from the inlet passage 41.