Tension device of tire cord fabric calender

The utility model relates to the technical field of tire cord fabric production. The utility model relates to a tension device, in particular to a tire cord fabric calender. Including a mounting shaft, driving shafts are fixedly mounted at the two ends of the mounting shaft; an electric telescopic oil cylinder is fixedly mounted on one side of the end part of the driving shaft; the control outputend of the electric telescopic oil cylinder is connected with a connecting piece; the interior of the connecting piece is elastically connected with the driving shaft in a sleeved mode through a firstspring. Bearing blocks are connected to the end parts of the inner sides of the connecting pieces in an attached manner; a bearing groove is formed in the bearing block; the bearing block is arrangedon the outer side of the driving shaft in a sleeving manner through the bearing groove; a sleeve block is arranged outside the bearing block, a cylindrical adjusting groove is obliquely formed in theouter end of the sleeve blo