Profile conveying device and tower crane production line

The utility model belongs to the technical field of engineering machinery, and particularly relates to a sectional material conveying device and a tower crane production line. The sectional material conveying device comprises a material frame; the conveying track is arranged at the top of the material frame; the stop signal limiting assembly is arranged at the tail end of the conveying rail and used for limiting the stop position of the batch of profiles; the speed reduction signal unit is arranged on the conveying track and located on the upstream of the stop signal limiting assembly; the feeding driving component is used for driving the conveying track; the control unit is in signal connection with the stop signal limiting assembly, the speed reduction signal unit and the feeding driving component and used for receiving signals sent by the stop signal limiting assembly and the speed reduction signal unit so as to control the feeding driving component. By means of the sectional material conveying device, in-