Press folder preset system
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United States of America Patent
Stats
-
Jan 3, 1995
Grant Date -
N/A
app pub date -
May 11, 1993
filing date -
May 11, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A personal computer (PC) and a programmable controller are used to automatically reposition the turn bars and compensation rollers used in a folder for a web printing press. By providing linear transducers for each of the turn bars and compensation rollers disposed at each level of the folder, analog information as to the actual position of each is provided to the programmable controller. The PC provides digital information to the programmable controller as to the desired position and an error signal is computed for controlling the operation of the drive motors so as to reduce the error signal to zero. When setting up the folder to run a new job, the turn bar settings and compensation roller positions are manually accomplished, but upon command, the settings for that job may be stored in the memory of the PC for use the next time that particular job is to be run.
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