Injection molding apparatus and a method therefor

An injection molding method utilizing an injection molding apparatus having at least a pair of dies provided to be openable and closable for forming a plurality of cavities therebetween when said pair of dies are closed, into which a molten resin is injected, said method comprising the steps of;

• detecting a pressure in each of said plurality of cavities, respectively;
• and
• if a pressure difference between said plurality of cavities exceeds a predetermined value, reducing a rate of injection of the molten resin and/or a die closing force.

An injection molding method utilizing an injection molding apparatus having at least a pair of dies provided to be openable and closable for forming a plurality of cavities therebetween when said pair of dies are closed, into which a molten resin is injected, said method comprising the steps of:

• detecting a pressure in each of said plurality of cavities, respectively;
• and
• if a pressure difference between said plurality of cavities exceeds a predetermined value, stopping injection of the molten resin and/or application of a die closing force.