Die cutting feeder and feeding device thereof

The embodiment of the invention provides a die cutting feeder and a feeding device thereof. The feeding device is used for allowing a material disc on which material belts are wound to be mounted, andcomprises a mounting base, a rotary shaft, a fixed baffle and a movable baffle. One end of the rotary shaft is pivoted on the mounting base, the fixed baffle is fixed to the first end of the rotary shaft, and the movable baffle is detachably mounted at the second end of the rotary shaft. The material disc sleeves at the position, between the fixed baffle and the movable baffle, of the rotary shaft and is limited through the cooperation of the fixed baffle and the movable baffle. The movable baffle sleeves the second end of the rotary shaft, and an adjusting ring is arranged on the side, deviating from the fixed baffle, of the movable baffle. A first external thread is arranged at the second end of the rotary shaft in the axial direction of the rotary shaft, and a first internal thread isarranged on the inner ring