发明名称 |
Method for controlling injection unit of injection molding machine |
摘要 |
In an injection unit of an in-line screw type injection molding machine, a screw is provided rotatably in both normal and reverse directions within a heating cylinder. The screw is periodically reversed in a charging stroke with the period of normal rotation being longer than that of reverse rotation, whereby a resin material is kneaded and plasticized. As a result, the resin in a melting and pooling zone (flow zone) between the inner wall of the heating cylinder and the outer peripheral wall of the screw is effectively moved back and forth and hence plasticized and molten into a uniform molten resin.
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申请公布号 |
US5028373(A) |
申请公布日期 |
1991.07.02 |
申请号 |
US19900466851 |
申请日期 |
1990.01.18 |
申请人 |
TOYO MACHINERY & METAL CO., LTD. |
发明人 |
TANIGUCHI, YOSHIYA;YAMADA, AKIO |
分类号 |
B29C45/50 |
主分类号 |
B29C45/50 |
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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