Injection molding apparatus and material ejection device

An injection molding apparatus configured to perform injection molding of a molded article using a molding die including a fixed mold and a movable mold that is movable relatively to the fixed mold, the apparatus comprising:

• an injection unit configured to inject a plasticized material obtained by plasticizing a material of the molded article into the molding die;
• a mold clamping unit to which the molding die is attached and which is configured to perform mold clamping on the molding die;
• and
• a controller configured to control the injection unit and the mold clamping unit, wherein
• the injection unit includes
• a plasticizing unit configured to plasticize the material to generate the plasticized material,
• a nozzle configured to supply the plasticized material to the molding die,
• a flow path configured to communicate the plasticizing unit and the nozzle with each other, and
• a supply adjustment mechanism provided to the flow path and configured to adjust a supply amount of the plasticized material from the nozzle to the molding die,
• the supply adjustment mechanism includes
• a cylinder coupled to the flow path,
• a plunger disposed in the cylinder, and
• a driver configured to drive the plunger, and
• the flow path and the cylinder are integrally formed of a first member.