Sheet-fed printing press for synchronizing sheet travel and conv

Details Sheet-fed printing press for synchronizing sheet travel and conv Sheet-fed printing press for synchronizing sheet travel and conv

1997-04-23

1999-07-27

Fisher, J. Reed

Printing

Multicolor

Rotary machines

101484, 101485, B41F 2100, B41F 506

Patent

active

059271949

ABSTRACT:
Sheet-fed printing press with flat sheet guidance, having two endless conveyor belts for rectilinear, intervention-free movement of gripper carriages through printing units of the press, includes a device for adjusting the length of the conveyor belts, and a device for synchronizing the speeds of the conveyor belts and of the cylinders of the printing press, the length-adjusting device being made-ready for matching the belt lengths automatically to the cylinder circumference during operation, each of the conveyor belts having associated therewith its own drive and its own mechanism for synchronizing the speed of the respective conveyor belt with the respective cylinders independently of the other one of the conveyor belts, and method of synchronizing the sheet travel with the cylinders of the press.

REFERENCES:
patent: 3664261 (1972-05-01), Dahlgren
patent: 4937664 (1990-06-01), Chiku et al.
patent: 5383392 (1995-01-01), Kowalewski

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