发明名称 |
Controlling an extrusion blowing process |
摘要 |
In extrusion blowing a hollow member, a preform is extruded and then blown in a mold to produce the final member. The weight of the hollow member is determined after its removal from the mold and compared to a reference value, thereby to adjust the size of the extrusion discharge opening to control the amount of material in the preform. The length of the preform is detected to control the movement of the mold thereby to keep a substantially constant length of extruded preform, while the time required to produce a preform is also maintained at a substantially constant value.
|
申请公布号 |
US4382761(A) |
申请公布日期 |
1983.05.10 |
申请号 |
US19800191963 |
申请日期 |
1980.09.29 |
申请人 |
KRUPP-KAUTEX MASCHINENBAU GMBH |
发明人 |
DAUBENBUECHEL, WERNER;HESS, DIETER |
分类号 |
B29C49/00;B29B11/10;B29C47/22;B29C47/92;B29C49/04;B29C49/32;B29C49/48;B29C49/58;B29C49/72;B29C49/78;B29C49/80;B29C65/00;B29L22/00;G05D5/03;(IPC1-7):B29C17/07 |
主分类号 |
B29C49/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|