A platform for supporting an engraving head in a manner accommodating translational movement without any associated rotation. The platform has a deck which is supported by a pair of flexible support columns. In operation the platform is situated alongside a rotating printing cylinder. The engraving head is mounted on the deck of the platform and is provided with a guide shoe which rides against the surface of the printing cylinder. As the cylinder rotates to angular positions having different radii, the engraving head responds with a purely linear reaction. Consequently the engraving head is able to engrave uniform-depth cavities in the surface of the printing cylinder. In two alternative embodiments the deck is driven by a resilient link arrangement which is coupled to a leadscrew and carriage assembly.
申请公布号
EP0746463(A4)
申请公布日期
1998.12.02
申请号
EP19940920274
申请日期
1994.06.20
申请人
OHIO ELECTRONIC ENGRAVERS, INC.
发明人
FRASER, JOHN, W.;BORNHORST, KENNETH, F., JR.;EICHHORN, THOMAS, J.;LIKINS, ROBERT, D.