Artificial intelligence-based injection molding system, and method for creating molding conditions

A method of generating molding conditions in an artificial intelligence (AI)-based injection molding system, the method comprising:

• when a molding material is injected into a mold and injection molding is performed for a product, acquiring current injection state data including at least one of a viscosity profile and an injection pressure value of the molding material injected into the mold;
• inputting the current injection state data into a molding quality maintenance model, which is trained with target injection state data including at least one of a target viscosity profile and a target injection pressure measured during injection molding for a good-quality product, to determine whether molding quality is maintained;
• and
• when it is determined that the molding quality is not maintained, changing preset molding conditions so that the current injection state data follows the target injection state data,
• wherein the changing of the preset molding conditions comprises changing at least one of an injection speed, a barrel temperature, and a mold temperature among the molding conditions,
• wherein the changing of the preset molding conditions comprises, when it is determined that the molding quality is not maintained, calculating a difference between the current injection state data and the target injection state data and changing the injection speed by a value proportional to the difference within a predetermined injection speed limitation value,
• wherein the changing of the preset molding conditions further comprises, when it is determined that the injection speed is changed by the value proportional to the difference and then deviates from the injection speed limitation value, changing the injection speed to the injection speed limitation value and changing the barrel temperature by a value proportional to the difference within a predetermined barrel temperature limitation value,
• wherein the changing of the preset molding conditions further comprises, when it is determined that the barrel temperature is changed by the value proportional to the difference and then deviates from the barrel temperature limitation value, changing the barrel temperature to the barrel temperature limitation value and changing the mold temperature by a value proportional to the difference within a predetermined mold temperature limitation value,
• wherein the changing of the preset molding conditions further comprises, when it is determined that the mold temperature is changed by the value proportional to the difference and then deviates from the mold temperature limitation value, changing the mold temperature to the mold temperature limitation value.