An injection molding system includes a molding device, an inspection device configured to inspect a molded product and a control device that includes a storage unit, and a reception unit configured to receive a change content of a parameter included in a standard molding condition. The control device executes a first control of forming the molded product under a second molding condition in which the parameter is changed based on the change content, a second control of forming the molded product under a third molding condition in which the same parameter is changed, a third control of associating the second molding condition with an inspection result of the molded product formed under the second molding condition and storing the association, and a fourth control of associating the third molding condition with the inspection result of the molded product formed under the third molding condition and storing the association.

The hydraulic source control device includes an operation input device capable of inputting operation conditions regarding the driving force of a fluid pressure control element, a servo motor including a motor section that drives a hydraulic pump and an amplifier that drives the motor section, and a controller that outputs a control command to the servo motor based on an input result to the operation input device. The controller obtains the fluid pressure of a working fluid based on the operation conditions regarding the input driving force, computes the output torque of the motor section based on the relationship between the fluid pressure and the output torque that are stored in advance, and outputs the computed output torque to the amplifier as a control command of the torque limitation value of the servo motor.

An injection molding apparatus includes an injection unit, a mold clamping unit, and a controller. The mold clamping unit includes a toggle fixing plate, a fixed mold attachment portion, a movable mold attachment portion movable in a mold clamping direction, a motor, a ball screw configured rotated by the motor, a crosshead configured to move between the toggle fixing plate and the movable mold attachment portion due to rotation of the ball screw, and a toggle section coupled to the toggle fixing plate. The movable mold attachment portion and the crosshead are configured to move the movable mold attachment portion. A position detector is configured to detect a position of the crosshead. The controller controls the position of the crosshead based on a detection result of the position detector to make the toggle section operate to perform the mold clamping of the fixed mold and the movable mold.

An injection molding system includes a molding device, an inspection device configured to inspect a molded product and a control device that includes a storage unit, and a reception unit configured to receive a change content of a parameter included in a standard molding condition. The control device executes a first control of forming the molded product under a second molding condition in which the parameter is changed based on the change content, a second control of forming the molded product under a third molding condition in which the same parameter is changed, a third control of associating the second molding condition with an inspection result of the molded product formed under the second molding condition and storing the association, and a fourth control of associating the third molding condition with the inspection result of the molded product formed under the third molding condition and storing the association.

At least a target torque value Ts for screw rotational torque T and an upper limit value Ru for screw rotational speed R are set beforehand as molding conditions, and the rotation of a screw 3 is controlled during a plasticization process on the basis of the target torque value Ts. A graphic display screen 51 is pop-up displayed when a changeover switch 50 is operated, in addition to a normal waveform display screen 11nn. The graphic display screen 51 is used for displaying data representing changes in at least one of screw position X, the screw rotational torque T, and the screw rotational speed R during the plastination process. The normal waveform display screen 11nn is used for displaying data representing changes in at least one of injection speed V, injection pressure Pp, and mold assembly parting opening amount Lm during molding.