Feeding device for lower plastic plate

The utility model relates to a feeding device for a lower plastic plate, comprising a feeding mechanism which is located on a supporting box body and is provided with a feeding plate which rotates around the center, and a plurality of supporting dies which are uniformly arranged in the circumferential direction are disassembled and assembled on the feeding plate; the first ejector plate is located below the feeding plate and moves upwards to eject the lower plastic plates stacked on one supporting mold from bottom to top. The storage mechanism is transversely located on one side of the feeding mechanism, a supporting mold arranged on a supporting frame is detachably arranged on the storage mechanism, and a second ejection plate is located below the supporting frame and can eject the stacked lower plastic plates from bottom to top when moving upwards; according to the device, the supporting molds at different positions are rotationally adjusted, so that a first ejector plate can sequentially eject materials to