Bobst Sa

Bobst Mex Sa

Daniel Tapis

Mauro Chiari

Nicolas Mosetti

Daniel Tatti

A method of adjusting a machine () for printing plate elements () equipped with at least one rotary impression cylinder () includes the steps of measuring a speed of the element () passing through the machine (), generating an operating signal () as a function of the measured speed and a tangential speed of the cylinder (), and adjusting an operating speed of the machine () as a function of the signal generated so that the operating speed of the machine () is such that the speed of the element () is substantially equal to the tangential speed of the cylinder ().

Adjustment method and arrangement for a printing machine

An independent motor/reductor drives a conveyance device that feeds a converting press. The converting press includes a number of stations including a feeding station, a converting station, a waste stripping station and a delivery station. The conveyance device services the stations and includes two endless gripper bar chains to convey sheet material through the converting press. A transverse drive shaft drives the conveyance device under the control of the independent motor/reductor. The independent motor/reductor provides motion trajectories for the conveyance device that are independent of, but synchronized with, the serviced stations. The arrangement improves throughput, reduces machine wear and results in a simplified design.

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Crissier, Switzerland

Daniel Tapis