Methods for controlling injection molding machine

Details Methods for controlling injection molding machine Methods for controlling injection molding machine

B - Operations, Transporting

29

C

18/701

B29C 45/77 (2006.01) B29C 45/76 (2006.01) G05B 19/23 (2006.01)

Patent

CA 1250718

ABSTRACT OF THE DISCLOSURE In a nozzle pressing and contacting process, a mold clamping process, an injection process and the like in an injection molding operation, a movable side, such as constituting a nozzle portion or screw of an injection apparatus, or a movable mold of a molding apparatus, is moved towards and contacted with a stationary side, such as constituting a mold or molding machine, or a stationary mold under a speed controlled condition. When the movable side approaches the stationary side, the pressure acting on the stationary side is measured and when the measured pres- sure reaches a predetermined set pressure, the speed control is switched to a pressure control thereby to accurately and smoothly bring the movable side into contact with the stationary side.

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