发明名称 |
Valve pin actuator |
摘要 |
A valve pin actuator for a valve-gated injection molding system. The actuator has an annular piston mounted in and movable back and forth along an annular bore along a pin axis. The piston extends radially outwardly of any melt passages fluidly communicating with an injection molding nozzle. A tie bar extends substantially diametrically across the piston for securing an upper end of a valve pin extending into the injection molding nozzle to cause the valve pin to move axially with the piston thereby moving the valve pin between open and shut positions.
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申请公布号 |
US5855934(A) |
申请公布日期 |
1999.01.05 |
申请号 |
US19970863134 |
申请日期 |
1997.05.27 |
申请人 |
TRADESCO MOLD LIMITED |
发明人 |
ROZEMA, HENRY I.;RICK, ROBERT F. |
分类号 |
B29C45/28;(IPC1-7):B29C45/23 |
主分类号 |
B29C45/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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