Hydraulic system for the mold clamping unit of a plastics...

Details Hydraulic system for the mold clamping unit of a plastics... Hydraulic system for the mold clamping unit of a plastics...

B - Operations, Transporting

29

C

18/707

B29C 45/67 (2006.01)

Patent

CA 1269812

ABSTRACT OF THE DISCLOSURE A hydraulic actuator assembly for use in a mold clamping unit of an injection molding machine. The actuator assembly serves as a rapid-travel drive for mold opening and closing movements and as a source of elevated mold clamping pressure. Among the hydraulic elements contributing to the operation of the mold clamping unit are a power piston for effect- ing elevated mold clamping pressures and a drive piston for effecting rapid die closing movements. With the hydraulic actuator system of the present invention, it is possible to control the operation of the mold clamping unit based on two-sided hydraulic influencing of the power piston and the drive piston.

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