Injection molding apparatus and mold of injection molding apparatus

An injection molding apparatus comprising:

• a mold that includes a fixed mold and a movable mold facing the fixed mold, and that is formed with a cavity defined by the fixed mold and the movable mold and a runner communicating with the cavity;
• a mold clamping unit configured to move the movable mold with respect to the fixed mold;
• an injection unit configured to inject a molding material into the cavity through the runner;
• a cutting mechanism that is provided at the mold and that includes a cutter projecting to the runner;
• a drive unit that is provided on the mold and that is configured to drive the cutting mechanism;
• and
• a control unit configured to control the injection unit, the mold clamping unit, and the drive unit, wherein
• the control unit controls the injection unit to inject the molding material into the cavity, and then controls the drive unit to cause the cutter to project to the runner, thereby cutting the molding material hardened in the runner,
• the cutting mechanism includes a rotary table having an uneven surface on which convex portions and concave portions are alternately arranged along a circumferential direction centered on a rotational axis, and the cutter is provided on the uneven surface,
• the rotary table rotates around the rotational axis by the drive unit so as to push the cutter by the convex portions, and
• the cutter is pushed by the convex portions and linearly moves along the rotational axis so as to project to the runner.