Calibration tool for sensor of label paper stacking and picking device

A calibration tool for a label paper stacking and picking device sensor belongs to the technical field of packaging machine auxiliary machinery and comprises a mounting frame used for being buckled on a picking device, two sides of the mounting frame are respectively and fixedly provided with a positioning portion, the mounting frame is of an inverted U-shaped structure, and the two positioning portions are symmetrically and fixedly arranged on the two sides of the mounting frame. The positioning parts on the two sides of the installation frame correspond to the two sets of photoelectric detectors of the picking device one to one, the positioning parts are of a step type structure, the step height difference of the positioning parts is the same as the height difference between the two photoelectric detectors in the same set, the positioning parts can serve as detection references, a rotating arm does not need to be started during detection, and the detection efficiency is improved. Detection can be carried ou