IP Library › Granted Patent US 12673364
Granted Patent B2
US 12673364 · App. 18/278,575 · Granted Jul 7, 2026

Green compact conveying mechanism and green compact forming device

Inventors: Rikiya Okimoto (Osaka, JP); Yosuke Takayama (Osaka, JP); Hitoshi Tani (Osaka, JP)
Assignee: Panasonic Intellectual Property Management Co., Ltd.
B22F3/18B30B3/04B30B11/006B30B15/34B22F2003/185
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12673364
App. No.
18/278,575
Granted
Jul 7, 2026
Kind
B2
Abstract

A green compact conveying mechanism includes: a conveyance path for a green compact obtained by compressively forming powder in a sheet shape; an extrusion part that sends the green compact to the downstream side of the conveyance path by extruding the green compact; and a buckling inducing part that is arranged in the conveyance path, causes the green compact to be easily bent locally, and induces buckling at that site.

Claims (24)

1 . A green compact conveying mechanism comprising:

a conveyance path for a green compact obtained by compressively forming powder in a sheet shape;

an extrusion part that sends the green compact to a downstream side of the conveyance path by extruding the green compact; and

a buckling inducing part that is arranged in the conveyance path, causes a portion of the green compact at a position corresponding to the buckling inducing part to bend, and induces buckling of the green compact at that site.

2 . The green compact conveying mechanism according to claim 1 , wherein

the conveyance path has a tunnel shape that extends in a conveyance direction of the green compact, and

the buckling inducing part comprises a locally elevated part of a ceiling surface of the conveyance path.

3 . The green compact conveying mechanism according to claim 2 , wherein

the buckling inducing part has a tapered part whose height decreases toward the downstream side of the conveyance path.

4 . The green compact conveying mechanism according to claim 1 , wherein

the conveyance path has a tunnel shape that extends in a conveyance direction of the green compact, and

the buckling inducing part comprises a part of a ceiling surface of the conveyance path that is locally open.

5 . The green compact conveying mechanism according to claim 1 , wherein

the conveyance path has a tunnel shape that extends in a conveyance direction of the green compact, and

the buckling inducing part comprises a part of a ceiling surface of the conveyance path where the flexibility is locally increased.

6 . The green compact conveying mechanism according to claim 1 , comprising:

a sensor that detects an occurrence of the buckling in the buckling inducing part; and

a removal part that removes a buckled part in accordance with a detection result from the sensor.

7 . The green compact conveying mechanism according to claim 6 , wherein

the removal part has a cutting part that separates the buckled part from the rest and a collection part that collects the separated buckled part.

8 . A green compact forming device comprising:

press rolls that compressively form powder into a sheet shape; and

the green compact conveying mechanism according to claim 1 , wherein

the press rolls serve as the extrusion part of the green compact conveying mechanism.