Machine special for applying blue band on small tube

The utility model relates to a machine specially used for beating blue bands on both ends of manufactured steel tubes, which sequentially comprises the following devices form left to right that a driven rotating mechanism which is composed of two bearings and two cone plug and is arranged on a left base, a left blue band box positioned on a cylinder which is arranged on the left base, a left roller carrying support fixed on the left base, a stepper motor and a stepper traversing mechanism which is driven by chains are poisoned in the middle portion, a separation supporting mechanism with a triangle protrusion arranged on a separating cylinder which is positioned on the middle portion, a right roller carrying support, a right blue band box and a driving rotation actuating mechanism. The device can simultaneously complete the work of beating blue bands of two steel tubes with the diameter of 4 cfm-1.5 inch, since the work of moving, separating and rotating steel tubes are all respectively completed though the t