Up-and-down hanging system of conveying line

The utility model relates to an up-and-down hanging system of a conveying line. The device comprises an upper hanging device and a centering mechanism, the centering mechanism comprises a centering assembly, the centering assembly comprises a centering air cylinder and a centering movable claw, the cylinder body end of the centering air cylinder is positioned and rotationally arranged relative toan upper hanging machine base, and the piston end of the centering air cylinder is in transmission connection with one end of the centering movable claw through a centering opening degree assembly; the lower hanging device comprises an oblique conveying mechanism, and the oblique conveying mechanism comprises a plurality of conveying rollers; the hanging conveying device comprises a hanging support and a hanging bracket, the hanging support is hung on the hanging guide rail in a sliding mode, and a bearing face is arranged on the hanging bracket; the upper hanging device and/or the lower hanging device further compris