Vacuum suction device for bagging machine

The utility model discloses a vacuum suction device for a bagging machine, which comprises a frame and a fixing plate fixed at the center of the top of the frame. The utility model discloses a vacuum chuck device which comprises a rack, a limiting hole, a limiting cylinder and a threaded column, the number of the vacuum chucks is eight, the eight vacuum chucks are symmetrically connected to the two sides of the rack in a sleeved mode through the concentric-square-shaped block, and a buffering piece is arranged on the concentric-square-shaped block. Four vacuum chucks can be installed and fixed at the same time, the vacuum chucks are connected in a clamping mode, the installation time of the vacuum chucks is saved, meanwhile, the vacuum chucks are convenient to disassemble through cooperation of the designed linkage piece and the driving piece, workers do not need to frequently unscrew bolts when replacing the vacuum chucks, more time and labor are saved, and the working efficiency of the bagging machine is im