Printing overturning air injection frame

The utility model provides a printing overturning air injection frame, which belongs to the technical field of printing conveying lines, aims to solve the problem that the position of an air nozzle of the air injection frame cannot be adjusted at will, and comprises a stand column and a cross beam connected to the stand column, a mounting seat is arranged on the cross beam, a mounting rod is arranged in the mounting seat in a penetrating manner, and the mounting rod is connected with an air rod through a supporting mechanism. The rear end of the air rod is connected with a pressure pipe of an external air injection system; the supporting mechanism comprises a connecting disc, a connecting shaft rotationally connected with the connecting disc penetrates through the center of the connecting disc, the connecting shaft located on the two sides of the connecting disc is sleeved with a swing disc and a locking disc respectively, the swing disc and the locking disc are each provided with an arc-shaped containing gro