| 摘要 |
PROBLEM TO BE SOLVED: To provide the demolding device of molded screw whose structure is made simple by virtue of a mold opening operation since a motor or the like are not used as the power source of the rotation of a screw core, which is performed in order to pull out an injection-molded screw part from a screw core, and which can prevent the screw part which is pulled out from being brought into contact with lubricant oil or the like of a driving mechanism. SOLUTION: A slider 2 is freely slidably disposed on a movable plate 7 which moves with a lower plate 8 on the movable side with respect to an upper plate 9 serving as the fixed side when the mold is opened and closed, in a direction orthogonal to a moving direction. An operation pin 3 in an oblique direction with respect to the moving direction of the movable plate 7 is disposed on the upper plate 9 and is loosely inserted into a through hole 2a formed in the oblique direction in the slider 2. A rack 4 is disposed on the side surface of the slider 2 and is engaged with a pinion gear 6 fitted to the screw core 5. The slider 2 is moved while being guided by the operational pin 3 in accordance with the movement of the lower plate 8, the pinion gear 6 is rotated in accordance with the movement of the rack 4 and the screw core 5 is rotated. COPYRIGHT: (C)2009,JPO&INPIT |
