发明名称 |
Injection molding system with sequential gate control |
摘要 |
An injection molding machine [10] for molding plastic parts by injecting a molten plastic through a plurality of valve gates [31] into a mold cavity by reciprocation of a helical screw [16]. A linear position sensor [34] positioned on the machine to detect the position of the helical screw [16] and control the opening and closing of the gates [31] based on the detected position of the screw [16]. A computer is in communication with the valve gates and the position sensor to monitor the position and activate the opening and closing of the valve gates [31]. A pressure transducer is associated with the mold cavity and in communication with the computer [32] as an alternate or additional method for controlling the opening and closing of the valve gates [31].
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申请公布号 |
US5919492(A) |
申请公布日期 |
1999.07.06 |
申请号 |
US19970934170 |
申请日期 |
1997.09.19 |
申请人 |
TARR, JOHN;REITAN, DAVE |
发明人 |
TARR, JOHN;REITAN, DAVE |
分类号 |
B29C45/28;B29C45/76;B29C45/77;B29C45/80;(IPC1-7):B29C45/77 |
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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