Steel cord straightener for engineering tire

The utility model discloses a steel cord straightener for an engineering tire, which comprises a plurality of second straightening wheels, a first straightening wheel is movably arranged above the plurality of second straightening wheels, an extrusion mechanism is arranged above the first straightening wheel, the extrusion mechanism comprises an inverted U-shaped frame and a spring, sliding blocks are arranged at two ends of the inverted U-shaped frame, and the spring is arranged above the inverted U-shaped frame. First sliding grooves are formed in the two sides of the inverted-U-shaped frame, the outer walls of the sliding blocks are slidably connected with the inner walls of the first sliding grooves, and the springs are arranged at the top ends of the sliding blocks. According to the steel cord straightening device, the inverted-U-shaped frame moves downwards to enable the first straightening wheel to move downwards, so that the straightness of a steel cord is changed in the straightening process, and the