发明名称 |
Electrical injection velocity-pressure switching and pressure holding device |
摘要 |
A velocity-pressure switching and pressure holding device and system for electrically-operated injection molding machines. The switching between closed-loop position control and closed-loop pressure control of a servo motor of an injection molding machine is quickly and smoothly achieved by a switchable loop switch to ensure the optimal control of the velocity-pressure switching during injection filling and pressure holding. Furthermore an adjustable observation value and a speed reducing set up for the injection axle before switching are provided to allow users to perform minor adjustments on the velocity-pressure switching during the slow down of the injection axle. The present invention easily and precisely achieves the optimal velocity-pressure switching parameters to facilitate better pressure holding ability to increase the quality of the plastic products.
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申请公布号 |
US6994537(B2) |
申请公布日期 |
2006.02.07 |
申请号 |
US20030422746 |
申请日期 |
2003.04.25 |
申请人 |
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE |
发明人 |
LIU HSING CHANG;CHIEN YU-WEI |
分类号 |
B29C45/77 |
主分类号 |
B29C45/77 |
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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