Masao Kamiguchi

Pressure Profile Trace Control on Fully Electric Injection Molding Machine. (2nd Report). Application of Learning Control for Pressure Profile Editing.

To achieve the stable injection molding process, pressure profile trace control is developed. This control is one of the learning control system that is learned the material changes, mold changes and so on in the molding process. But adjustment method of molding parameter is not changed. Using velocity and velocity switch position, pressure profile is adjusted as suitable profile by try and error. To reduce this adjusting time, new function as pressure profile editing function is developed. This function is able to edit pressure profile directly like CAD system and traces edited pressure profile instead of reference pressure curve at good part produced. Difference between original pressure profile control and pressure profile editing function is velocity data existing or not. New function has to create velocity data and learns control gain. Modification of learning system is able to have good results of new function.