发明名称 |
Back pressure control method for an injection molding machine |
摘要 |
The invention relates to a control method for controlling the back pressure in an injection molding machine which includes a first motor that axially displaces a screw and a second motor that turns the screw, whereby both motors act upon a common shaft. In order to control the back pressure, a speed value for controlling the second motor is furnished as a rotational speed input value to a control circuit for controlling the speed or rotation speed of the first motor. The back pressure is thus controlled in dependence on a pressure differential via the difference in rotation speeds of both motors.
|
申请公布号 |
US2004173925(A1) |
申请公布日期 |
2004.09.09 |
申请号 |
US20040755710 |
申请日期 |
2004.01.12 |
申请人 |
MANNESMANN PLASTICS MACHINERY GMBH |
发明人 |
MELKUS ANDREAS |
分类号 |
B29C45/76;B29C45/50;B29C45/77;(IPC1-7):B29C45/77 |
主分类号 |
B29C45/76 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|