Double-twisting machine combined traction device for producing high-elongation steel cords

The invention discloses a double-twisting machine combined traction device for producing high-elongation steel cords. The traction device comprises a rack, and a double-twisting machine rotating body, an over-twisting device and a traction device body are sequentially arranged on the rack in sequence; the traction device body comprises a main traction wheel, a first driven traction wheel, a second driven traction wheel and a speed changer for driving the main traction wheel to rotate, wherein the main traction wheel, the first driven traction wheel and the second driven traction wheel are in triangular arrangement; the rope-shaped steel cord passing through the over-twisting device is sequentially wound on the surfaces of the first driven traction wheel and the main traction wheel back and forth for multiple times, and then the rope-shaped steel cord is sequentially wound on the surfaces of the main traction wheel and the second driven traction wheel back and forth for multiple times; and the main traction wh