Adjusting nozzle and setting machine applying same

The adjusting nozzle comprises an upper nozzle body and a lower nozzle body which are vertically opposite, and a channel formed by the upper nozzle body and the lower nozzle body is a fabric drying channel; the connecting piece is provided with a plurality of air outlets on the opposite surfaces of the upper nozzle body and the lower nozzle body, and one end of the connecting piece is an open end; a mounting plate is arranged on the inner wall of the connecting piece and is parallel to the perforated surface of the connecting piece; a regulation and control plate is arranged between the mounting plate and the perforated surface in a sliding manner, and the regulation and control plate abuts against the perforated surface; the adjusting and controlling plate is provided with a plurality of air control ports with the caliber consistent with that of the air exhaust ports, the distance between every two adjacent air control ports is consistent with that between every two adjacent air exhaust ports, and the connec