Molding optimization method and device for injection molding machine

A molding optimization device for an injection molding machine which optimizes molding conditions for producing a molded product by injecting and charging a plasticized molten resin into a die by a screw, the molding optimization device comprising a molding machine controller in which an optimization processing section is provided, the optimization processing section comprising:

• a basic molding condition setting functional section which sets basic molding conditions for an initial resin material used at the beginning of production of a predetermined molded product;
• a basic melting property calculation functional section which obtains a basic melting property related to a molten state of the initial resin material based on the basic molding conditions;
• a second molding condition setting functional section which sets second molding conditions for an additional resin material to which the initial resin material is switched to continue the production of the molded product;
• a second melting property calculation functional section which obtains a second melting property related to a molten state of the additional resin material based on the second molding conditions;
• and
• a molding condition conversion functional section which performs a conversion process, including at least conversion of a set temperature, for the second molding conditions by a predetermined conversion means such that the second melting property approximates the basic melting property.