Automatic feeding device and laser marking system

The utility model belongs to the technical field of laser marking, and relates to an automatic feeding device and a laser marking system.The automatic feeding device comprises a supporting assembly, a limiting assembly, a moving assembly, a material bearing assembly and a base plate; the limiting assembly comprises at least three limiting pieces, the limiting pieces are arranged on the supporting assembly side by side to form a limiting channel, and at least one limiting piece moves in the direction intersecting with the extending direction of the limiting channel; the moving assembly is used for driving the material bearing assembly to reciprocate in the extending direction of the limiting channel, the base plate is detachably arranged on the material bearing assembly and contained in the limiting channel, and the base plate is used for bearing a workpiece. According to the technical scheme provided by the automatic feeding device and the laser marking system, the workpieces can be stored and automatically f