INJECTION MOLDING MACHINE

摘要

PROBLEM TO BE SOLVED: To provide an injection molding machine which can reduce the total used amount of lubricant used in a ball screw mechanism and bearings.SOLUTION: An injection molding machine includes: an injection ball screw shaft 48a and an injection ball screw nut 48b which form an injection ball screw mechanism 48 converting rotational motion into linear motion; a rotary drive part 45 which rotates the injection ball screw shaft 48a; bearings 51-53 which are provided around the injection ball screw shaft 48a; and a lubricant supply part 60 which first supplies a lubricant to be supplied to the bearings 51-53 to the injection ball screw mechanism 48.