发明名称 |
Injection-molding machine for synthetic plastic material |
摘要 |
The injection-molding machine is operative when activated for performing a complete injection-molding cycle. The machine includes a mold defining a mold cavity, a plastifying and injecting screw, and an hydraulic cylinder-and-piston unit for driving the screw. During the course of a single injection-molding cycle, negative-feedback control of the pressure in the mold cavity undergoes an automatic transition into negative-feedback control of the pressure in the hydraulic cylinder of the cylinder-and-piston unit. The transition is selected to be abrupt or gradual, and if gradual there will be a transitional interval during which a composite negative-feedback control of both the mold cavity and hydraulic cylinder pressures is occurring.
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申请公布号 |
US4120631(A) |
申请公布日期 |
1978.10.17 |
申请号 |
US19760664806 |
申请日期 |
1976.03.08 |
申请人 |
ROBERT BOSCH GMBH |
发明人 |
LEUTNER, VOLKMAR;ROMES, ROMAN |
分类号 |
B29C45/00;B29C37/00;B29C45/57;B29C45/70;B29C45/77;B29C45/82;(IPC1-7):B29F1/06 |
主分类号 |
B29C45/00 |
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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