Injection molding machine, hydraulic actuating mechanism of...

Details Injection molding machine, hydraulic actuating mechanism of... Injection molding machine, hydraulic actuating mechanism of...

F - Mech Eng,Light,Heat,Weapons

15

B

F15B 13/06 (2006.01) B29C 45/17 (2006.01) B29C 45/82 (2006.01) F15B 11/16 (2006.01) B29C 45/50 (2006.01)

Patent

CA 2384392

The present invention provides a hydraulic actuating mechanism of an injection molding machine, in which a plurality of hydraulic actuators are driven by one hydraulic pump, wherein the hydraulic pump of the hydraulic actuating mechanism is a variable discharge pump having the maximum necessary delivery capacity at least for each of the hydraulic actuators at the time of the highest rotational speed of the pump; the discharged fluid pressure is controlled by a discharge cutoff function of a pressure compensator ancillary to the variable discharge pump; and the pump is driven by a motor whose rotation can be controlled in a stepless mode.

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