System for keeping the printing plates of a printing press at a

Details System for keeping the printing plates of a printing press at a System for keeping the printing plates of a printing press at a

1994-02-03

1994-12-27

Eickholt, Eugene H.

Printing

Rolling contact machines

Rotary

101487, 62 64, 165 89, B41F 500

Patent

active

053755189

ABSTRACT:
A system for keeping the surface (4) of a rotating cylindrical printing plate (6) of a printing press at a moderate temperature. A cooling air blower girder (2) extends longitudinally over the printing plate surface (4) and blows cold air onto the printing plate surface (4), in order to keep its temperature at a desired value. The blast-air girder (2) contains at least one heat exchanger (52) and at least one blower (60) as well as at least one air-return duct (20, 22), which together forms a cooling air cycle, through which the air, blown onto the printing plate surface (4), is returned to the air inlet of the heat exchanger and, optionally mixed with fresh air, blown by the blower (60) once again through the heat exchanger (52) onto the printing plate surface (4). The blast-air girder (2) represents an energy-saving, compact structural unit for keeping the printing plate surface (4) at a moderate temperature.

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