| 摘要 |
PURPOSE:To facilitate the mold release of a tool engaging groove from a projecting part by setting the width in the direction intersecting at right angles with the pushing direction of a green compact, of the projecting part minimum at the front end part in the pushing direction and maximum at the rear part. CONSTITUTION:The half part 4, with wide width and half part 42 with narrow width of a tool engaging groove 4 pass through respectively the half part 171 with wide width and half part 172 with narrow width of a projecting part 17, by pushing to the right part a green compact C by a hopper. Now this time the half part 41 with width width of the tool engaging groove 4 becomes in a loosely fitting state due to the gap that the half part 41 with wide width of the tool engaging groove 4 is formed based on the width a1-a2 for the half part 172 with narrow width of the projecting part 17. In this way the sliding resistance is eliminated between the tool engaging groove 4 and projecting part 17, the tool engaging groove 4 is easily released from the projecting part 17 and the green compact G is swept away from the mouth edge of the 1st hole part 102.
|
