Control system for an injection molding machine and a method...

Details Control system for an injection molding machine and a method... Control system for an injection molding machine and a method...

2006-09-19

2009-02-03

Heitbrink, Jill L (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

C425S145000, C425S149000

Reexamination Certificate

active

07485247

ABSTRACT:
A control system for an injection molding machine performs a molding cycle. The molding cycle includes a filling process for controlling an advancing motion of a screw of the injection molding machine, and a hold press process for controlling a pressure of a molten resin after the filling process. The control system includes retracting speed limit means for limiting a retracting speed of the screw to a predetermined retracting speed limit value after a pressure control in the hold press process begins.

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