Patent ID: 6796156
Filing Date: 2004-09-28
Classification: B21C,B44B,Y10T

Abstract:
A device for carrying out marking of objects comprising:a support structure to be fastened to a bearing element; an engraving tool movable along a reference axis with respect to an object to be marked, between a contact position at which it intercepts said object to be marked and a disengagement position at which it is spaced apart form said object; movement means to move said engraving tool in a plane substantially normal to the reference axis, wherein said engraving tool comprises at least one engraving rolling element rotatably engaged in a rolling seating arranged in a housing body wherein said engraving rolling element comprises an engraving ball, said engraving tool further comprising friction-reducing means operatively interposed between the engraving rolling element and said housing body, wherein said friction-reducing means comprises small sliding balls operatively interposed between the rolling seating and the engraving rolling element, and wherein said rolling seating has a hemispheric rolling portion and a recirculation portion spreading away from the rolling portion.