Method of collecting molding data and obtaining molding condition for injection molding machine

A molding condition obtaining method for an injection molding machine comprising the steps of:

• (a) obtaining a rough molding condition for obtaining a molded product by performing a condition setting operation under different molding conditions each constituted by a plurality of molding condition items;
• (b) automatically obtaining a plurality of molding conditions analogous with the rough molding condition obtained in said step (a);
• (c) automatically performing a continuous molding operation by set times or for a set time period under each analogous molding condition obtained in said step (b) to collect molding data for each molding condition;
• and
• (d) evaluating the molding data for each molding condition collected in said step (c) to obtain a stable molding condition, including obtaining an optimal molding condition by evaluating a dispersion degree of the molding data under each molding condition.