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Title:
POWDER SUPPLYING APPARATUS AND POWDER FILLING METHOD FOR POWDER MOLDING PRESS
Document Type and Number:
Japanese Patent JP3810831
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To eliminate the contamination of the circumference due to spilling of a raw material powder in a feeder on a die plate by forming an inner case having a lower height and a shorter telescopic length than an outer case in such a manner that the outer surface of the inner case slides on the inner surface of the outer case, and providing an exhaust port at the upper surface of the outer case oppositely to the inner case via the long hole provided at the upper surface of the inner case with a powder supply port fixed to the outer case at the lower end. SOLUTION: When the outer case of a feeder is moved, an inner case starts to move by being pressed by the rear wall of the outer case. A suction chamber 31 is formed at the front side of the inner case, the feeder is advanced while cleaning to supply powder to a die 03. When it starts to retract, the outer case is previously moved. At this time, suction chambers 31, 32 are formed. The suction and recovery units always continue operating. Since the die 03 is covered with the inner case, the powder in the die 03 is not sucked. Further, as it further retracts, the case 10 is moved as well, and the powder in the die 03 is chafed at the lower end of the inner case to finish filling. At this time, since the chamber 31 is vanished already at the moment that the inner case starts to move, the powder in the die 03 is not sucked but separated from the die 03.

Inventors:
Tadao Masuda
Application Number:
JP20082395A
Publication Date:
August 16, 2006
Filing Date:
August 07, 1995
Export Citation:
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Assignee:
Hitachi Powdered Metals Co., Ltd.
International Classes:
B28B13/02; B30B11/00; B22F3/02; (IPC1-7): B28B13/02; B22F3/02; B30B11/00
Domestic Patent References:
JP533994U
Attorney, Agent or Firm:
Hidekazu Miyoshi