| 摘要 |
PROBLEM TO BE SOLVED: To prevent an accident of clogging of a powder that is caused by a conveyance member reaching a fullness detection chamber, even when the conveyance member continues a powder recovery operation after fullness is detected in the fullness detection chamber.SOLUTION: A powder recovery device 11 comprises: a recovery container 1 including one or more recovery ports 2 that recover a powder G conveyed from a powder processing part 10, a powder storage chamber 3 that initially stores the powder G recovered from the recovery ports 2, and a fullness detection chamber 4 that is provided adjacent to the powder storage chamber 3, stores the powder G overflown from the powder storage chamber 3, and detects whether the powder storage chamber 3 has become full with the powder G stored therein; a covering member 6 that covers an upper part of the fullness detection chamber 4; a conveyance member 7 that conveys the powder G stored in the powder storage chamber 3 toward the fullness detection chamber 4; and an opening/closing door 8 that is provided openably/closably in a part of the covering member 6, and can be opened when the powder G stored in the fullness detection chamber 4 is charged to a position in contact with the covering member 6, by a pressing force of the powder G from the inside of the fullness detection chamber.SELECTED DRAWING: Figure 1 |
