发明名称 |
METHOD OF AND APPARATUS FOR COMPRESSION MOULDING OF PLASTIC ARTICLES ESPECIALLY THOSE OF ACRYLAMINE FOAM |
摘要 |
A method and apparatus for compression molding plastic articles including closures which includes providing co-acting sets of tools (27, 28) including a first set (27) of moving a core (41) and core sleeve (42) into engagement with a cavity mold (51) on a second set (28) of tooling. An actuator (34) is provided between the first set of tooling (27) and a fixed upper cam (29). The second set of tooling (28) includes an associated actuator (52) supporting the cavity mold and associated with a lower fixed cam (31). A nitrogen cylinder (39) in the second set of tooling (28) provides for control of the compression molding force. In a preferred form, a plurality of sets of tooling are provided in circumferentially spaced relation on a rotating turret (22) supported by a central column (21). A common manifold supplies the pressure at accurately controlled pressure to each of the nitrogen cylinders (39). A control system is provided for monitoring and changing the pressure. <IMAGE>
|
申请公布号 |
PL180667(B1) |
申请公布日期 |
2001.03.30 |
申请号 |
PL19960314669 |
申请日期 |
1996.06.07 |
申请人 |
OWENS-ILLINOIS CLOSURE INC. |
发明人 |
INGRAM KEITH W. |
分类号 |
B29C43/04;B29C31/04;B29C43/08;B29C43/36;B29C43/58;(IPC1-7):B29C43/08 |
主分类号 |
B29C43/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|