公开(公告)号：US4170889A

公开(公告)日：1979-10-16

申请号：US913693

申请日：1978-06-08

申请人： Tateo Tanimoto ,  Yukio Hiasa ,  Hidehiko Tsukamoto ,  Tetsuo Ichikizaki ,  Akihiro Shindo ,  Akira Wakayama

发明人： Tateo Tanimoto ,  Yukio Hiasa ,  Hidehiko Tsukamoto ,  Tetsuo Ichikizaki ,  Akihiro Shindo ,  Akira Wakayama

IPC分类号： B21D51/08 ,  B21D5/06 ,  B21D5/12 ,  B21D19/04 ,  B21D22/06 ,  B21D22/14 ,  B21D22/18 ,  B21D22/16

CPC分类号： B21D22/14 ,  B21D22/185

摘要： Upon roll-forming an end plate of hemispherical and other cup-like or dish-like configurations, a raw material disc is placed between outer die means consisting of a top outer forming die that can be vertically moved by a drive source and can be freely rotated and at least a pair of left and right outer forming rolls adapted to move along predetermined moving paths and inner die means consisting of a top inner forming die held at a predetermined position that can be driven in rotation by a drive source, and a middle inner forming roll a bottom inner roll both of which are freely rotatable, the outer die means is depressed against the inner die means, and said pair of outer forming rolls are moved along said moving paths so as to press said raw material disc against the middle inner forming roll and the bottom inner forming roll, respectively, one of said outer forming rolls being moved within an effective forming range of the middle inner forming roll, while the other being moved within an effective forming range of the bottom inner forming roll. The effective forming ranges of the middle and bottom inner forming rolls, respectively, are partly overlapped with each other. In an apparatus for effecting the above-described roll-forming operation, an effective forming angle of the bottom inner forming roll is chosen larger than an effective forming angle of the middle inner forming roll.

摘要翻译： 在成形半球形和其它杯状或碟状构造的端板时，将原料盘放置在由可由驱动源垂直移动的顶部外部成形模组成的外部模具装置之间，并且可以自由地 并且至少一对左右外侧成形辊适于沿着预定的移动路径移动，并且内部模具装置由内部成形模具组成，顶部内部成型模具保持在可由驱动源驱动旋转的预定位置， 内成形辊，其可自由旋转的底部内辊，外模装置压靠内模装置，并且所述一对外成型辊沿着所述移动路径移动，以将所述原料盘压靠在中间 内成型辊和底内成型辊，其中一个外成型辊在中间内成型辊的有效成形范围内移动，而另一个在内成型辊中移动 n是底部内成型辊的有效成形范围。 中部和底部内部成形辊的有效成形范围分别部分重叠。 在用于进行上述辊轧成形操作的装置中，底部内侧成形辊的有效成形角度被选择为大于中间内侧成形辊的有效成形角度。