Novel interchangeable drum

The invention discloses a novel interchangeable drum. The novel interchangeable drum comprises a changeable drum mandrel and a changeable drum body. The changeable drum body is arranged outside the changeable drum mandrel. The changeable drum mandrel and the telescopic mandrel are mutually connected. A fixing shaft end is arranged outside the telescopic mandrel. A fixing part is arranged between the fixing shaft end and the changeable drum body. An elastic part is arranged at the rear end of the changeable drum body. A jacket is arranged outside the elastic part. The changeable drum body is arranged outside the changeable drum mandrel and replaced by tightening or loosening the fixing part between the fixing shaft end and the changeable drum body, replacement of the changeable drum body is more efficient, dismounting during changeable drum body replacement is more convenient, and the changeable drum body can be replaced by tightening or loosening the fixing part. 种新型互换性卷筒，设置有可换卷筒芯轴和可换卷筒，在所述的可换卷筒芯轴外设置有可换卷筒，在所述