Abstract: A injection molding machine includes a power device including a movable plate, a primary motorized cylinder having a primary threaded rod screwed through the movable plate, a secondary motorized cylinder having a secondary threaded rod screwed through the movable plate, a first starter mounted on the primary motorized cylinder and connected with a controller, and a second starter mounted on the secondary motorized cylinder and connected with the controller. The second starter contains a bias factor command and a preset output command. Thus, the normal torque output of the secondary motorized cylinder is close to that of the primary motorized cylinder by control of the bias factor command, and the preset output command limits and prevents the normal torque output of the secondary motorized cylinder from being greater than that of the primary motorized cylinder.

Abstract: A injection molding machine includes a power device including a movable plate, a primary motorized cylinder having a primary threaded rod screwed through the movable plate, a secondary motorized cylinder having a secondary threaded rod screwed through the movable plate, a first starter mounted on the primary motorized cylinder and connected with a controller, and a second starter mounted on the secondary motorized cylinder and connected with the controller. The second starter contains a bias factor command and a preset output command. Thus, the normal torque output of the secondary motorized cylinder is close to that of the primary motorized cylinder by control of the bias factor command, and the preset output command limits and prevents the normal torque output of the secondary motorized cylinder from being greater than that of the primary motorized cylinder.

Abstract: A double mold locking apparatus includes a mold unit and a plurality of positioning devices. The mold unit includes a fixed mold, a movable mold, a plurality of support rods and a plurality of driving cylinders. Each of the positioning devices includes a high pressure locking cylinder, two opposite semi-nuts and a position finder. Thus, the position of each of the support rods relative to the semi-nuts of the respective positioning device is micro-adjusted when the first die and the second die are opened and closed, so that a user only needs to calibrate the position of each of the support rods at the first time when the first die and the second die are opened and closed without having to adjust and calibrate the position of each of the support rods at each cycle.