LOCK DEVICE FOR MOLD FOR MOLDING BELT

摘要

PROBLEM TO BE SOLVED: To automatically lock a mold without using labor when a drive shaft for rotating a cylindrical mold and the mold are to be locked by using a locking pin through a boss hole part of the mold in the shaft support device of the mold for molding a belt. SOLUTION: The boss hole part 20 of a mold 2 is constituted of the mold 2 having a taper part 21 formed to the peripheral edge thereof and having at least one or more rectangular notch part in the radius direction of the peripheral edge thereof and the shaft support part 30 wherein the shaft end thereof has the taper part fitted to the boss hole part 20 and the lock pin 32 fitted in the rectangular notch part is arranged to a predetermined position through an elastic means 33. By rotating the shaft support part 30 and the mold 2 relatively, both of them are automatically locked.