Yarn twisting prevention device in textile machinery

The utility model discloses a yarn twisting prevention device in textile machinery. The device comprises two textile connecting plates, the tops of the two textile connecting plates are rotationally connected with a top cover; a semicircular groove is formed in the top of the textile connecting plate; the inner side wall of the semicircular groove is rotationally connected with a doubling roller;the opposite sides of the textile connecting plates are rotationally connected with wire guide rollers; a plurality of thread guide grooves are formed in the outer side wall of the thread guide roller, the opposite sides of the textile connecting plates are fixedly connected with working chambers located below the thread guide grooves, the opposite sides of the textile connecting plates are fixedly connected with heating devices located below the working chambers, and the textile connecting plates are rotationally connected with take-up rollers. According to the yarn guide roller, one roller of yarn is separated into