Injection molding apparatus

An injection molding apparatus for forming a gasket around an edge of a glass, comprising:

• an injection mold die;
• at least one fixing component, disposed inside the injection mold die and adapted for fixing the glass inside the injection mold die;
• a detection unit, adapted for detecting sounds in the injection mold die;
• and
• a determination unit, coupled with the detection unit and adapted for determining whether the glass breaks based on a detection result of the detection unit;
• wherein the detection unit is an acoustic sensor;
• wherein the acoustic sensor has one end disposed inside a through hole of the injection mold die, in order to detect sounds inside the injection mold die;
• wherein the detection unit is adapted for determining whether the glass breaks based on whether a sound detected by the acoustic sensor matches with a sound of glass breaking;
• wherein a sound insulation layer is filled in an end portion of the through hole, and wherein the end portion is far away from a cavity of the injection mold die.