Pay-off device for house building construction

The utility model relates to the technical field of house building construction, and discloses a pay-off device for house building construction, which comprises a mounting box, a fixing ring extending to the upper part of the mounting box is arranged on the inner top wall of the mounting box, and a storage bin extending to the lower part of the mounting box is arranged at the top of the fixing ring. Mounting boxes are arranged on the left side and the right side of the inner wall of the mounting box, two vertical plates are arranged at the bottom of the mounting box, and a bottom plate with one end fixedly connected with the bottom of the vertical plate on the right side is arranged at the bottom of the vertical plate on the left side. According to the pay-off device for housing building construction, by arranging a beating assembly and starting a driving motor, under transmission of a driving wheel, a transmission wheel and a belt, two rotating rods are driven to rotate at the same time so that a cam can rot