METHOD FOR DROPPING MOLDING IN INJECTION MOLDING MACHINE, DEVICE THEREFOR, AND INJECTION MOLDING MACHINE EQUIPPED WITH DEVICE FOR DROPPING MOLDING

摘要

PROBLEM TO BE SOLVED: To allow a movable mold and a molding to fall without damage and oversight by breaking a spool away from the movable mold with the help of a spool runner remover while the opening of the mold is underway or after opening the mold, and at the same time, sweeping a parting face with a brush-like wiper. ;SOLUTION: A guide wheel 19 is mounted on a bracket 17 on the upper part of a base frame 16 provided on the front end of the movable mold 9, while a driven wheel 20 and guide wheels 21, 22 are mounted on a bracket 18 on the lower part, and a pair of right/left endless transmission elements 23 are suspended on the guide wheels 19, 21, 22 and the driven wheel 20. In addition, a brush-like wiper 25 is installed on a retaining arm 24 between the endless transmission elements 23. When removing a spool runner 13 with the help of a spool runner remover 14, the wiper 25 is caused to descend with the tip of the wiper 25 sliding on the parting face of the movable platen side 9 of the mold, using a motor 28, a transmission gear 27 and the endless transmission elements 23. Thus it is possible to sweep off a molding 10 and at the same time, remove a deposit from the surface of the movable mold 9. Sliding friction of the wiper 25 is synchronized with the point of projecting or retracting/plunging-in time of an ejector member.;COPYRIGHT: (C)1999,JPO