Heat treatment device for needle cylinder of circular knitting machine

The utility model discloses a heat treatment device for a needle cylinder of a circular knitting machine. The heat treatment device comprises a stand column, a heating mechanism, a cooling cylinder and a lifting loading mechanism, the heating mechanism is fixed on the upright post; a flame jet orifice is formed in the heating mechanism; the cooling cylinder is located below the heating mechanism and internally provided with a cooling medium. The lifting loading mechanism comprises a telescopic column and a loading disc, one end of the telescopic column is fixed in the cooling cylinder, the loading disc is connected with the other end of the telescopic column, and the loading disc is driven by the telescopic column to ascend into the heating mechanism or descend into the cooling cylinder. According to the heat treatment device, the needle cylinder meets the use requirement after being treated, and the heat treatment device is simple in structure and can be suitable for needle cylinders of different sizes. 本实用新