公开(公告)号：US5288440A

公开(公告)日：1994-02-22

申请号：US830661

申请日：1992-02-04

申请人： Takeshi Katagiri ,  Masao Yamamoto ,  Tukasa Tajima ,  Siro Sirasaki

发明人： Takeshi Katagiri ,  Masao Yamamoto ,  Tukasa Tajima ,  Siro Sirasaki

IPC分类号： B22F3/02 ,  B22F3/03 ,  B22F3/035 ,  B30B11/00 ,  B30B11/02 ,  B29C43/02

CPC分类号： B30B11/005

摘要： A power molding press is controlled, in which a stepped mold product having a plurality of stepped portions is molded by compressing powder within a mold by relatively moving an upper punch assembly, a lower punch assembly including a plurality of lower punches arranged concentrically with each other and the mold by detecting a speed ratio of moving speeds of the upper and lower punch assemblies moved by the respective driving sources at a time of compressing the respective stepped portions of the mold product during a compressing time from a pressing start time to a pressing completion time, detecting positions of the upper and lower punch assemblies and the mold, detecting a compression ratio of compressed dimensions of the stepped portions of the mold product, and controlling the respective drive sources to control the relative moving speeds of the upper punch assembly, the lower punch assembly and the mold so that the speed ratios substantially accord with the compression ratios of the respective stepped portion of the mold product.

摘要翻译： 控制动力成型压力机，其中通过相对移动上冲头组件而将模具中的粉末压制成具有多个阶梯部分的阶梯模具产品，下冲头组件包括彼此同心设置的多个下冲头 通过检测在从按压开始时间到按压完成的压缩时间期间压缩模具产品的各个阶梯部分时由相应的驱动源移动的上冲头组件和下冲头组件的移动速度的速度比 时间，检测上下冲头组件和模具的位置，检测模具产品的阶梯部分的压缩尺寸的压缩比，并且控制相应的驱动源以控制上冲头组件的相对移动速度， 下冲头组件和模具，使得速比基本上符合压缩比 模具产品的相应台阶部分。