Molding system and method for operating the same

A method for operating a molding machine, comprising steps of:

• specifying a simulating domain corresponding to a genuine domain in a mold disposed on the molding machine, wherein the genuine domain has a mold cavity to be filled with a molding resin from the molding machine to prepare a molding product;
• performing a virtual molding by using a setting packing pressure profile to generate a simulated state waveform expressing a relationship between an in-mold pressure and an in-mold temperature of the molding resin;
• generating a designed state waveform including an isobaric phase and an isochoric phase following the isobaric phase, wherein the designed state waveform is generated using the simulated state waveform;
• obtaining an updated packing pressure profile for applying a molding pressure to at least a portion of the genuine domain, wherein the updated packing pressure profile is obtained using a difference between the simulated state waveform and the designed state waveform;
• and
• setting the molding machine to perform an actual molding by applying an actual molding pressure to the at least a portion of the genuine domain to prepare the molding product, wherein the molding condition is set using the updated packing pressure profile.