B - Operations – Transporting – 21 – C
Patent
B - Operations, Transporting
21
C
340/123, 354/25
B21C 51/00 (2006.01) B65G 49/04 (2006.01)
Patent
CA 1066802
Abstract of the Disclosure The invention relates to a method and apparatus for tracking process and product data between various measurement and control stations on a processing line. The application discussed is a continuous galvanizing (zinc coating) line; however, the system can be generally applied to any strip processing line, including aluminum coating lines, tin coating lines, paint coating lines, etc., with measurement and control stations specially separated. The system provides a means for continuously evaluating a process- controller action at a previous control station by tracking pertinent process- ing data to a measurement station where it can be used with the measurement data to determine further control action. The system also provides a means for ideal process setup by tracking information, such as where the beginning product of a new order is throughout the line, so that new set points can be applied to process controllers at exactly the correct time. For example, a typical objective of this invention might be to follow the progress of welds (new orders) through the galvanizing line, to follow processing data from the zinc pot to an in-line coating gauge, and to follow coating data, from the gauge, through the exit loop and then to the shear. This system is particularly applicable of processing lines with several discrete sections provided with variable storage capacity between sections to allow for independent control of the strip speed in each section.
232409
Readal Gerald J.
Tiskus John R.
Tomcanin William J.
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