Bag supplementing machine

The utility model discloses a bag supplementing machine which comprises a bag storage bin used for storing packaging bags. The lower bag bins are located over the conveying belt, the multiple lower bag bins are arranged at intervals in the conveying direction of the conveying belt, and one side, facing the conveying belt, of each lower bag bin is provided with a side opening capable of being opened and closed; the grabbing mechanism is used for grabbing different numbers of packaging bags from the bag storage bin to all the bag discharging bins; the detection mechanism is arranged on one side of the conveying belt and used for detecting the number of the packaging bags lacked in each packaging bag stack and the position of the packaging bag stack; the switching mechanism is connected to the lower bag bin and used for opening or closing the lower bag bin; and the control system is used for controlling the grabbing mechanism, the detection mechanism and the conveying mechanism. 本实用型公开了一种补袋机,包括储袋仓，用于储存包装袋；下袋仓，位于