A catenary conveyor belt support is provided in a conveyor system for automated bulk processing equipment. The conveyor belt launches bulk articles along a trajectory from one end to a processing station. The upper surface of the conveyor belt at one end thereof is angled with respect to a horizontal plane and determines the launch angle of the trajectory along which the articles travel. The support holds constant the catenary shape of the belt and, thus, the launch angle of the trajectory regardless of the load thereon.