AUTOMATIC SHAPING TECHNOLOGY FOR THERMOPLASTIC INJECTION MOLDING

摘要

A method for the automated optimization of an injection molding machine set-up process, the machine for manufacturing injection molded parts and including an injection screw and a configurable injection velocity, including the steps of: (1) manufacturing one of more parts with the machine; (2) determining an injection pressure profile by measuring injection pressure as a function of elapsed injection time with the machine configured with a substantially constant, desired injection velocity; (3) measuring injection velocity as a function of elapsed injection time and determining a profile of the measured injection velocity; (4) defining a mean pressure profile from the pressure profile in a regime of substantially constant measured injection velocity profile; (5) adjusting the velocity profile over at least a portion of an injection velocity phase in response to the pressure profile to reduce differences between the pressure profile and the mean pressure profile, thereby tending to lessen irregularities in the pressure profile. IMAGE