Electronic Timing of Automatic Glass-Blowing Machines

Ball Corporation is now field-testing an electronic programmer for IS bottle-making machines. Using a COS/MOS memory programmed on a decimal keyboard and clocked by machine-driven shaft encoders, the programmer operates electropneumatic actuators that trip the machine control valves. An operator´s control station near the machine can refine the program while running, and the program can be stored on magnetic tape. An earlier version, programmed with thumbwheel switches, has been operating a machine section for several months. Both have programmed start-stop sequences. The earlier version has provided safer operation and greater accuracy. The second can also reduce programming time for repeat jobs to about 5 min per section.