Tension device of woven bag printing machine

The utility model relates to a tension device of a woven bag printing machine, and relates to the field of printing machine equipment. The device comprises a rack, two oppositely-distributed pressing rods are rotationally connected to the rack, a pressing roller is rotationally connected between the two pressing rods, and the pressing roller is used for being lapped on a woven bag roll; two conveying rollers distributed up and down are rotationally connected to the rack, and a servo motor used for driving one conveying roller to rotate is installed on the side wall of the rack. A sliding rod moving in the vertical direction is connected into the machine frame in a sliding mode, a gravity roller is rotationally connected to the sliding rod, and the woven bag bypasses the position below the gravity roller and then enters the position between the two conveying rollers. The woven bag conveying device has the effects of adjusting the tension of woven bags, limiting displacement of the woven bags in the conveying p