Tension-adjustable cylinder knitting machine

The utility model discloses a tension-adjustable cylinder knitting machine which comprises a tensioning frame, the tensioning frame comprises a bottom plate, two supporting rods are fixed to the top of the bottom plate, an auxiliary roller is rotationally connected between the two supporting rods, the outer sides of the two supporting rods are rotationally connected with L-shaped frames through rotating shafts, and a pressing roller is rotationally connected between the two L-shaped frames. One side of each L-shaped frame is provided with a rotating disc rotationally connected with the rotating shaft, a clockwork spring is arranged between each L-shaped frame and the corresponding rotating disc, one end of each clockwork spring is fixed to the rotating shaft, and the other end of each clockwork spring is fixed to a connector at the edge of the corresponding rotating disc. According to the utility model, the relative position between the turntable and the positioning ring is changed by rotating the turntable,