Tension constant-speed coiling device

The utility model provides a tension constant-speed coiling device. The tension constant-speed coiling device comprises tension wheels, a rotating shaft and a spool, wherein the tension wheels are used in pairs, and are arranged side by side on the same plane; produced yarns are extruded between the two tension wheels, and wind the spool; the spool sleeves the upper part of the rotating shaft; magnetic blocks which are placed correspondingly are designed on the outer surface of the rotating shaft and the inner surface of the spool respectively; the rotating shaft is connected with a rotating module; the spool is rotationally assembled relative to the rotating shaft. The device is assembled on a spinning machine, and is used for coiling yarns and supplying tension to the yarns. During working of the device, the two tension wheels are used for extruding the yarns, and meanwhile the tension wheels are driven to rotate at a constant speed by a transmission structure, so that yarns can be output uniformly; meanwhile, static friction force between the tension wheels and the yarns is used for providing tension force, so that the yarns are prevented from being damaged by sliding friction.