发明授权
- 专利标题： Workpiece high-speed pressurizing method and mechanism by using cylinder with cushioning mechanism
- 专利标题（中）： 工件高速加压方法和机构采用气缸与缓冲机构
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申请号： US10035121申请日： 2002-01-04
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公开(公告)号： US06722257B2公开(公告)日： 2004-04-20
- 发明人: Seikai Yoh , Kouichiro Ishibashi , Hitoshi Yamamoto , Nobuhiro Fujiwara
- 申请人： Seikai Yoh , Kouichiro Ishibashi , Hitoshi Yamamoto , Nobuhiro Fujiwara
- 优先权： JP2001-049020 20010223
- 主分类号： F15B1522
- IPC分类号： F15B1522
摘要：
At a step of pressurizing a workpiece after reducing a speed of a piston rod at an end of a forward stroke of the piston rod by restrictively allowing compressed air to flow out of an exhaust-side pressure chamber, operation of a rapid exhaust valve is triggered by reduction of internal pressure of the exhaust-side pressure chamber to lower pressure than internal pressure of a pressurizing-side pressure chamber to thereby directly open the exhaust-side pressure chamber into the atmosphere through the rapid exhaust valve and rapidly reduce back pressure of a main piston remaining in the exhaust-side pressure chamber.