Patent ID: 7438106
Filing Date: 2008-10-21
Classification: B29C,B29D

Abstract:
1. An apparatus for producing a shaped rubber body on a rotating support, comprising: a rotating support; a positive displacement extruding system for extruding a rubber strip, said system including, as seen from an upstream side of the rubber strip, a screw extruder unit, a gear pump unit and an extrusion head unit with an extrusion nozzle, which are connected in series with each other so as to define a substantially straight passage extending from said screw extruder unit to said extrusion nozzle of the extrusion head unit, along which the rubber strip is fed to the rotating support; a pair of guide rolls that are arranged between the extrusion nozzle of the extrusion head unit and the support, said guide rolls defining a gap therebetween through which said rubber strip is passed, one of said guide rolls applying the rubber strip onto the outer peripheral surface of the support; said screw extruder unit, said gear pump unit, said extrusion head unit and said guide rolls forming an assembly; and a first drive means for moving said assembly about a swivel axis, which extends perpendicular to a direction of the substantially straight passage for the rubber strip and also to a direction of the rotational axis of the support, and which passes a point of contact between the outer peripheral surface of the support and said one of the guide rolls; wherein said assembly can be moved integrally, so as to apply the rubber strip over a desired region of said outer peripheral surface of the support.