Wire twisting device

The invention discloses a wire twisting device comprising a device base. A mounting bench is arranged in the middle of the top of the device base; and a pay-off roller is arranged at one end of the mounting bench and a take-up roller is arranged at the other end of the mounting bench. Grooves are formed in the two sides of the mounting bench; moving boxes are arranged in the grooves; and the innerwalls of the grooves are connected with the two sides of the moving box by electric push rods. Wire twisting rollers and first drive motors are arranged in the inner cavities of the moving boxes; andannular protrusions are arranged on the surfaces of the wire twisting rollers. A wire guiding box is arranged between the mounting bench and the take-up roller; a wire-twisting casing tube is arranged inside the wire guiding box; and a second drive motor is arranged at one side of the wire guiding box and is connected with the wire-twisting casing tube by a transmission unit. According to the invention, the wire twisting