Carbon fiber yarn spreading tension device

The utility model discloses a carbon fiber yarn spreading tension device which comprises a machine frame, a yarn inlet wheel and a yarn outlet wheel are arranged at the top of the machine frame, and atension wheel is arranged below the position between the yarn inlet wheel and the yarn outlet wheel. The tension wheel is movably arranged in the heating cover; an electromagnetic coil is arranged atthe bottom of the heating cover, so that the tension wheel can move vertically; an electric heating block is arranged on the side wall of the heating cover; the top of the heating cover is arched, the vertex angle is an arc angle, and a yarn inlet and a yarn outlet are formed in the top; a V-shaped groove is formed in the bottom of the heating cover and connected with a drainage pipe. The beneficial effects that constant and stable tension is provided, tensioning is not affected by external temperature are achieved, the suction device is an electromagnetic coil, noise is reduced while suctioncontrollability is guarant