发明申请
- 专利标题： Pressure-reducing valve and a controller for a blow-molding machine and method thereof
- 专利标题（中）： 减压阀和吹塑机的控制器及其方法
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申请号： US10377692申请日： 2003-03-04
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公开(公告)号： US20040173924A1公开(公告)日： 2004-09-09
- 发明人: Russell Phillip D'Angelo
- 主分类号： B29C049/78
- IPC分类号： B29C049/78
摘要：
The invention is a pressure reducing valve for reducing the pressure supplied to a head tooling hydraulic positioning valve and a controller for bypassing the pressure reducing valve in a blow-molding machine. A pressure-reducing valve and electrical controller are used to regulate the pressure of a cylinder that controls the position of a head tooling pin and die assembly in a blow-molding machine. The invention reduces pressure during all time intervals except during a nullparison formationnull interval of the cycle. The invention is also a process for regulating the pressure of a cylinder that controls the position of a head tooling pin and die assembly in a blow-molding machine and for bypassing the pressure reducing valve in a blow-molding machine.
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