Automatic spraying system for coloring agent of stainless steel pipe

The invention relates to the field of stainless steel pipe machining, in particular to an automatic stainless steel pipe coloring agent spraying system which comprises a workbench, a spraying assembly and a plurality of rotating devices, the rotating devices are connected to the workbench at intervals, and each rotating device comprises a first driving wheel, a second driving wheel, a driving motor and a transmission assembly. The first driving wheel and the second driving wheel are rotatably connected to the workbench at intervals, a rotating space for containing stainless steel pipes is reserved between the first driving wheel and the second driving wheel, the driving motor is connected to the workbench, the transmission assembly is connected between the driving motor and the first driving wheel, and the spraying assembly is slidably connected to the workbench. Through the arrangement of the driving motor, the first driving wheel, the second driving wheel and the transmission assembly, automatic spraying ma