Synchronous control system of electric profile steel conveying trolley

The invention discloses a synchronous control system of an electric profile steel conveying trolley, which comprises an automatic profile steel conveying control system, and the automatic profile steel conveying control system is sequentially provided with an unloading mechanical arm, a circulating transfer guide rail, an electric transfer trolley and a connecting support plate according to a profile steel conveying path, the discharging mechanical arm comprises a base and a mechanical arm body installed on the base, an electric mechanical arm is installed at the upper end of the mechanical arm body, the base is installed at the end of the circulation type transfer guide rail, the circulation type transfer guide rail is composed of a main rail, two sets of arc-shaped auxiliary rails and a guide rail switcher, and the arc-shaped auxiliary rails are symmetrically installed on the two sides of the main rail. The two sets of guide rail switchers are arranged at the two ends of the circulating type transfer guide