Ejector return limit completion set the location of manner and device null of the ejector feature in the injection molding

摘要

PURPOSE: To enhance operability and capacity for calibration even in the case of the alteration of a mold by pulling back an ejector mechanism to a return limit housing position and rotating a servo motor by fine quantity toward an ejection side and realizing the holding of the position of the ejector mechanism without bringing the servo motor to an overload state. ;CONSTITUTION: A second setting device 22-3 sets the fine moving distance of an ejector mechanism toward ejection side from such a state that the ejector mechanism driven by a servo motor 10 stops return operation at an ejector return limit housing position as an ejector return limit completion position. A judging part 22-5 controls the movement of the ejector mechanism on the basis of the detection signal from a position detector 21 and judges the rotation stop of the servo motor 10 at the ejector return limit housing position in the return operation of the ejector mechanism and stops the return operation of the ejector mechanism to execute operation ejecting the ejector mechanism by a fine moving distance toward an ejection side to stop the same.;COPYRIGHT: (C)1995,JPO