Rotary printing machine pressure control - has cooling system to cool side frames to control pressure between cylinders

摘要

A rotary printing machine has includes two cylinders (1,2) which are mounted on parallel shafts (3,4). These shafts run in bearings (5a,5b,6a,6b) which are mounted in the side frames (9,10) of the machine. The pressure exerted between the rollers tends to fluctuate with temperature fluctuations in the material of the side frame (9,10). To overcome this problem, temperature sensors (11,12) are fitted to the side frames in the regions of the bearings. These temperature sensors control the flow of a cooling medium, which cools the side frames, and is pumped from a cooling system (14,15). USE/ADVANTAGE - Rotary printing machine. A constant pressure is maintained between the printing cylinders.