Title:
POWDER FEEDING DEVICE AND CONTROL METHOD OF POWDER FEEDING DEVICE
Document Type and Number:
Japanese Patent JP2022047159
Kind Code:
A
Abstract:
To prevent a suction part from being blocked by the sucked dust.SOLUTION: A powder feeding device 100 comprises a feeding chute 10, a dust collection duct 20 and an expansion mechanism 30. The feeding chute 10 includes a base end side feeding cylinder 11 disposed at a feeding-side base end position, an intermediate feeding cylinder 12 and a tip end side feeding cylinder 13. The dust collection duct 20 includes a base end side suction cylinder 21, an intermediate suction cylinder 22 and a tip end side suction cylinder 23. The intermediate feeding cylinder 12 is arranged outside of the base end side feeding cylinder 11 and the tip end side feeding cylinder 13 is arranged outside of the intermediate feeding cylinder 12 so that an opening area of the tip end side feeding cylinder 13 becomes larger than an opening area of the base end side feeding cylinder 11, and the intermediate suction cylinder 22 is arranged inside of the base end side suction cylinder 21 and the tip end side suction cylinder 23 is arranged inside of the intermediate suction cylinder 22 so that an opening area of the tip end side suction cylinder 23 becomes smaller than an opening area of the base end side suction cylinder 21.SELECTED DRAWING: Figure 2
Inventors:
KODAMA SATOSHI
Application Number:
JP2020152907A
Publication Date:
March 24, 2022
Filing Date:
September 11, 2020
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
B65G11/14; B65G65/32; B65G69/18
Attorney, Agent or Firm:
Fujiharu
Takaori Mitoma
Miki Kawakami
Daisuke Nagata
Takaori Mitoma
Miki Kawakami
Daisuke Nagata