To provide the hold pressure changeover control device of an electromotive injection molding machine capable of performing hold pressure changeover by optimumly performing automatic deceleration on this side of a hold pressure changeover position by always operating and forming a deceleration control order and capable of obtaining a stable molded product.
A control device which sets the deceleration and acceleration of a screw, a hold pressure setting speed and a control delay time to detect the present position of the screw during an injection process and operates the deceleration control order on the basis of the detected present position and the set control delay time and the hold pressure setting speed and the deceleration so that the dwelling setting speed is obtained immediately before the hold pressure changeover position is provided.
Mitsue Haba
Hisako Ishido
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