Anti-falling device of stacking machine

The invention relates to the technical field of stacking machines, in particular to a stacking machine anti-falling device which comprises an action assembly, a trigger assembly and a lifting steel wire rope. The action assembly comprises a first mounting base, a trigger piece, a connecting plate, a trigger base, a fixed wedge block, a trigger lever, a pin, an action wedge block, a first tension spring and an adjusting fixing block, the fixed wedge block is fixedly connected to one side of the first mounting base, and the action wedge block is movably arranged on the side, away from the first mounting base, of the fixed wedge block; a trigger lever is arranged between the action wedge block and the first mounting base, the trigger lever is rotationally connected with the fixed wedge block through a pin, one end of the trigger lever is movably hinged to the action wedge block, and the other end of the trigger lever is movably hinged to a connecting plate. And the response time is short, the action is reliable,