Punch the lock and unlock device in the heading molding machine

摘要

(57) [summary] automatically I want to be able to lock and unlock the punch attached through the punch holder to the ram of the [purpose] heading molding machine. [Configuration] I want to urge the lock pin 9 is inserted so as to be freely moved up and down on the punch holder 6 by a coil spring 18 in the downward direction. The locking pin 9 is moved downward, by being engaged in the notch 8 of the punch 7, the punch 7 punch holder 6 It wants to be locked in. Meanwhile installing the locking pin upward movement device 21 to the outer ram 4, by the upward movement apparatus 21 is driven, the link mechanism 10 connected to the locking pin 9 itself or the lock pin 9 at its tip is moved upward I want to so. And this upward movement, the locking pin 9 is disengaged from the notch portion 8 of the punch 7, so that the locking of the punch 7 is released. Since the [effect] there is no need to install a drive for the lock pin operating the ram side, it can facilitate maintenance work such as attachment points of the punch.