Fuente: WIPO "hemp" A transfer printing machine roller rapid replacing device for hemp, cotton and nylon blended fabric comprises a U-shaped frame, a bearing at the right end of a rotating shaft is installed on the right side of the inner wall of the U-shaped frame, gears are fixedly installed on the periphery of the rotating shaft and the periphery of a motor output shaft respectively, the other end of a second electromagnetic clutch is fixedly connected with the right end of a lead screw, and a nut is installed on the periphery of the lead screw in a threaded mode. The left side of the periphery of the telescopic shaft movable rod is fixedly connected with the inner periphery of a bearing, the periphery of the bearing is fixedly connected with the bottom side of a nut, and a second clamping block is installed on the left bearing of the inner wall of the U-shaped frame. The transfer printing device is simple in structure and convenient to use, the roller can be rapidly replaced, meanwhile, the roller can be conveniently driven to rotate through the motor when the transfer printing device is used, the attaching effect between transfer printing paper and cloth is good in the using process, and the transfer printing effect is improved. And through the device, the roller can be rapidly replaced, the working efficiency during transfer printing is improved, and the production efficiency is improved.