| 摘要 |
PROBLEM TO BE SOLVED: To provide a material supply device configured to improve precision in amount and speed of a material to be supplied.SOLUTION: A powder supply device 1A is configured to deliver powder M contained in a housing 5 to an exit part 6 of the housing 5 by rotating a screw shaft 7 having a screw 10. The screw shaft 7 is provided in the housing 5 so as to move in a direction of an axis Ax of rotation relatively to the housing 5. The screw 10 has a large-pitch part 10A and a small-pitch part 10B so that there may be a difference in pitch P in the direction of the axis Ax of rotation. |
