| 摘要 |
PROBLEM TO BE SOLVED: To prevent coagulation of a powder material.SOLUTION: A cleaning unit includes: a plate-like scraping member having an end which comes into contact with a surface of a moving object to scrape off a powder material on a surface thereof; a housing tank which houses the powder material scraped by the scraping member; a conveyance member arranged in a drop point of the powder material in the housing tank, and rotating to convey the powder material in a direction along a rotating shaft thereof; and a rotating brush which is arranged adjacent to the conveyance member in the housing tank, while avoiding the drop point, to rub the surface of the object on the upstream of the scraping member in a moving direction of the object. |
