Controller for an ejector mechanism in an injection molding...

Details Controller for an ejector mechanism in an injection molding... Controller for an ejector mechanism in an injection molding...

2007-10-02

2007-10-02

Heitbrink, Tim (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Article ejector or stripper control

C264S334000, C425S165000, C425S556000

Reexamination Certificate

active

11157805

ABSTRACT:
A controller and a method for an ejector mechanism in an injection molding machine for appropriately setting a terminal position of a forward motion of ejector pins of the ejector mechanism. The terminal position of the forward motion is set to a position where an elastic force of return springs does not exceed a retaining force of a brake device for retaining the ejector pins at the terminal position. The elastic force of the springs are detected during the ejector pins are moved forward. A position of the ejector pins immediately before the detected elastic force of the springs exceeds the retaining force of the brake device is determined and displayed on a display device as a criterial position. The terminal position of the forward motion of the ejector pins is set not to exceed the determined criterial position.

REFERENCES:
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patent: 7086851 (2006-08-01), Ickinger et al.
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European Search Report in corresponding EP Application No. 05253887.3-2307 dated Jan. 27, 2006.

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