公开(公告)号：EP3000589A1

公开(公告)日：2016-03-30

申请号：EP15795095.7

申请日：2015-06-24

Applicant: Kobayashi Industry Co. Ltd.

Inventor： ITOU, Kiyomitsu

IPC: B30B11/02 ,  B22F3/035 ,  B21D37/00 ,  B21D37/02

CPC classification number: B22F3/03 ,  B28B7/386 ,  B29C43/32 ,  B29C2043/3233 ,  B30B11/007 ,  B30B15/0082 ,  B30B15/022

Abstract: Provided is a die apparatus capable of removing powder adhering to cut surfaces so as to securely form a cavity in a desired shape.
Each divided die 4i reciprocatingly driven by each slider 6i (i=a, b, c) comes into contact with one another so as to form the cavity 3. Punches 7a and 7b are inserted into the cavity 3 from above and below of the cavity 3. Each divided die 4i is provided with cut surfaces 11j (j=a, b) that come into contact with the other divided dies. A gas passage 16j connected to a gas injection port 12j that injects gas from the cut surface 11j is formed in each divided die 4i.

Abstract translation: 本发明提供一种模具装置，其能够除去附着在切断面上的粉体，从而可靠地形成所希望的形状的模腔。 由每个滑块6i（i = a，b，c）往复驱动的每个分割模具4i彼此接触以便形成空腔3.冲头7a和7b从空腔的上方和下方插入空腔3 各分割模具4i具有与其他分割模具接触的切断面11j（j = a，b）。 在各分割模具4i上形成有与从切断面11j喷射气体的气体喷射口12j连接的气体流路16j。

公开(公告)号：EP3000589B1

公开(公告)日：2018-06-27

申请号：EP15795095.7

申请日：2015-06-24

Applicant: KOBAYASHI INDUSTRY CO., LTD.

Inventor： ITOU, Kiyomitsu

IPC: B30B11/02 ,  B22F3/035 ,  B21D37/00 ,  B21D37/02 ,  B30B15/00 ,  B30B11/00 ,  B30B15/02 ,  B22F3/03 ,  B08B5/00 ,  B08B9/00

CPC classification number: B22F3/03 ,  B28B7/386 ,  B29C43/32 ,  B29C2043/3233 ,  B30B11/007 ,  B30B15/0082 ,  B30B15/022

Abstract: Provided is a die apparatus capable of removing powder adhering to cut surfaces so as to securely form a cavity in a desired shape. Each divided die 4i reciprocatingly driven by each slider 6i (i=a, b, c) comes into contact with one another so as to form the cavity 3. Punches 7a and 7b are inserted into the cavity 3 from above and below of the cavity 3. Each divided die 4i is provided with cut surfaces 11j (j=a, b) that come into contact with the other divided dies. A gas passage 16j connected to a gas injection port 12j that injects gas from the cut surface 11j is formed in each divided die 4i.

公开(公告)号：EP3831589A1

公开(公告)日：2021-06-09

申请号：EP19843351.8

申请日：2019-07-30

Applicant: KOBAYASHI INDUSTRY CO., LTD.

Inventor： ITOU, Kiyomitsu

IPC: B30B11/02 ,  B22F3/035 ,  B28B3/02 ,  B30B11/00

Abstract: There is provided, for example, a method which can improve molding accuracy of a powder molded body and consequently a sintered body by preventing relative translation in the up-down direction between divided dies, which is derived from an inclined divided surface forming a divided surface of each of the divided dies. Each of a plurality of divided dies (11, 12) has a divided surface (111, 121) and a defining surface (112, 122) which defines a cavity 100. The divided surface has an inclined divided surface (1112, 1212) inclined with respect to the translational direction, and at least one pair of perpendicular divided surfaces (1112, 1113, 1211, 1213) which is disposed on the opposite side based on the defining surface and is perpendicular to the translational direction. Each of the plurality of divided dies (11) and (12), while abutting against each other at, at least the at least one pair of perpendicular divided surfaces of the divided surface, abuts against each other in a state of being spaced apart from each other with a gap d within a range of 1 to 30 µm at the inclined divided surface (1112, 1212), thereby forming the cavity 100.

公开(公告)号：EP3187329A1

公开(公告)日：2017-07-05

申请号：EP15813683.8

申请日：2015-06-24

Applicant: KOBAYASHI INDUSTRY CO., LTD.

Inventor： ITOU, Kiyomitsu

IPC: B30B11/02 ,  B22F3/035 ,  B21D37/02

CPC classification number: B30B7/04 ,  B21D37/02 ,  B30B11/02 ,  B30B11/027

Abstract: Provided is a mold device which forms a cavity of a predetermined shape, even if timing of reaching a predetermined position for forming the cavity is different among dies, due to a difference in advancing speed among the dies.
A die segment 3a butts against a pair of die segments 3b and 3c at a first parting surface 4 and a second parting surface 5, respectively. In the first parting surface 4, a longitudinally protruding part 6 which is locally protruding is formed, and thereby a first guide surface 9 which extends parallel to a travel direction of the die segment 3b is formed. In the second parting surface 5 of the die segment 3b, a longitudinally recessed part 7 which is locally recessed is formed, and thereby a second guide surface 10 which butts against the first guide surface 9 of the die segment 3a is formed.

Abstract translation: 本发明提供一种模具装置，即使由于模具之间的前进速度的不同而在模具之间到达用于形成型腔的规定位置的定时不同，也能够形成规定形状的型腔。 模具段3a分别在第一分型面4和第二分型面5处抵靠在一对模具段3b和3c上。 在第一分型面4上形成局部突出的纵向突出部6，由此形成平行于模具段3b的行进方向延伸的第一引导面9。 在模具段3b的第二分型面5上形成局部凹入的纵向凹陷部分7，从而形成与模具段3a的第一引导表面9对接的第二引导表面10。