Turn-up rod and tire building drum

The utility model relates to the technical field of tire building, and discloses a turn-up rod and a tire building drum. The turn-up rod comprises a body, a turn-up roller and a plurality of supporting elements, the body comprises a connecting rod part and a mounting part, one end of the mounting part is connected with the connecting rod part, the other end of the mounting part is a free end, and the mounting part comprises two mounting arms which are arranged in parallel; the turn-up roller is arranged at the free end of the mounting part and is rotationally arranged between the two mounting arms; and the plurality of supporting elements are rotatably arranged between the two mounting arms and are positioned between the connecting rod part and the turn-up roller in the extension direction of the turn-up rod. According to the utility model, the rigidity of the turn-up rod is increased structurally, the service life of the turn-up rod is prolonged, the number of the turn-up rods of the tire building drum is re