发明名称 |
Injection mold having rotatable stamper holding ring |
摘要 |
An injection mold for disc molding such as in the manufacture of video or audio discs. The mold has a stamper removably clamped to one mold half by a rotating stamper holding ring. Both mold halves contain a plurality of clamping pins which selectively engage and hold slots in the holding ring. By rotating the holding ring, disengagement of the ring with the pins of the mold half carrying the stamper occurs simultaneously with engagement of the ring with the pins of the other mold half. Thereby, the stamper is released and may then be replaced.
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申请公布号 |
US4790738(A) |
申请公布日期 |
1988.12.13 |
申请号 |
US19870123019 |
申请日期 |
1987.11.19 |
申请人 |
MEIKI CO., LTD. |
发明人 |
SHIMOJO, SHUNICHI;ASAI, IKUO |
分类号 |
B22D17/22;B29C33/30;B29C45/17;B29C45/26;B29D17/00;(IPC1-7):B29C33/30 |
主分类号 |
B22D17/22 |
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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