Expert response compensation for injection process controls

Abstract

Sophisticated molding machines are often controlled by a system composed of several devices from a number of different manufacturers. The integration of a control system, as well as the process itself, constantly presents challenges and ever-changing variables in injection molding. Although complex algorithms are designed to compensate for anticipated upsets in the process, the inability to control the unforeseen dynamic variables constantly presents challenges for each portion of the process, and effectively reduces the quality of the end product. With the introduction of a feature known as expert response compensation (ERC), a fully automated control system constantly analyzes the machine's response and makes the necessary corrections to ensure that each portion of the process is performed according to the predetermined set points. An examination is made of the use of ERC for injection process control.<>