Adjusting mechanism for unwinding mother roller of diaphragm splitting machine

The utility model relates to the technical field of diaphragm slitting, in particular to a diaphragm slitting machine unwinding mother roller adjusting mechanism which comprises a slitting rack, an unwinding assembly and a lifting assembly, the unwinding assembly is arranged at the front end of the slitting rack and comprises an unwinding shaft and an adjusting mechanism, a spline housing is arranged at one end of the unwinding shaft, a clamping sleeve is arranged at the other end of the unwinding shaft, and the lifting assembly is arranged on the spline housing. The adjusting mechanism comprises a driving mechanism and a limiting mechanism, the lifting assembly comprises a movable base, a lifting mechanism is arranged above the movable base, and an arc-shaped containing groove is fixedly formed in the upper surface of the lifting mechanism. The automatic reel replacing device is high in automation degree in the reel replacing process, manual or travelling crane carrying is avoided through lifting of the unre