公开(公告)号：US3718027A

公开(公告)日：1973-02-27

申请号：US3718027D

申请日：1970-08-17

申请人： EUMUCO AG FUER MASCHINENBAU

发明人： RAU G ,  ECK A

IPC分类号： B21J7/24 ,  B21J9/12 ,  B30B15/00 ,  B21J11/00

CPC分类号： B21J7/28 ,  B21J9/12 ,  B21J11/00 ,  B30B15/00

摘要： A forming machine having at least two piston means for providing a deforming force between the anvil block and ram. The piston means includes a first piston surface area that is substantially different than a second piston surface area. The smaller piston surface area is fixedly attached to the ram to effect hammering of the deformable material. The first and second piston surface areas are moved with the same hydraulic driving medium. The first and second piston surface areas are movable and controllable independently of each other.

摘要翻译： 一种具有至少两个活塞装置的成型机，用于在砧座和冲头之间提供变形力。 活塞装置包括与第二活塞表面区域基本上不同的第一活塞表面区域。 较小的活塞表面区域固定地附接到冲头以实现可变形材料的锤击。 第一和第二活塞表面区域用相同的液压驱动介质移动。 第一和第二活塞表面区域彼此独立地可移动和可控。