公开(公告)号：US4590784A

公开(公告)日：1986-05-27

申请号：US753013

申请日：1985-07-08

申请人： Jiro Okabe ,  Shunji Fujie ,  Haruki Takeuchi

发明人： Jiro Okabe ,  Shunji Fujie ,  Haruki Takeuchi

IPC分类号： B21D5/00 ,  B21D5/02 ,  B30B1/16 ,  B21D5/01

CPC分类号： B30B1/16 ,  B21D5/02

摘要： A press brake has a press cradle, which has an upper die and which is provided across two frames, and a ram, which has a lower die, and which moves up and down to perform a bending operation on metal sheets. The upper ends of the beams attached by pins at the lower ends to the ram are coupled by pins to ends of rotary links which are connected by pins to the press cradle. The rotary links are rotated in a fixed path by hydraulic cylinders rotatably provided on both frames to raise and lower the ram via the beams.

摘要翻译： 压制机具有：具有上模并设置在两个框架上的压力支架，以及具有下模的冲头，并且上下移动以对金属板执行弯曲操作。 通过销钉在下端连接到压头的梁的上端通过销连接到旋转连杆的端部，其通过销连接到压力支架。 旋转连杆通过可旋转地设置在两个框架上的液压缸以固定的路径旋转，以通过梁升高和降低压头。