Strip steel coiling tension control method and device

The invention relates to the field of steel rolling, in particular to a trip steel coiling tension control method. The method comprises the steps that when the strip steel head enters a belt wrapper,the coiling tension value is controlled to 35 to 65 MPa; when the belt wrapper descends and delays for 4 to 5 seconds, the coiling tension value is controlled to be stepped to 50.05 to 92.95 MPa, then, the value is gradually reduced to 38.5 to 71.5 MPa; when the length of coiled strip steel reaches 1/5 of the total length of the strip steel, the coiling tension value is controlled to be graduallyreduced to 35 to 65 MPa; when the length of the coiled strip steel reaches 3/5 of the total length of the strip steel, the coiling tension value is controlled to be kept 35 to 65 MPa; when the lengthof the coiled strip steel reaches 4/5 of the total length of the strip steel, the coiling tension value is controlled to be gradually increased to 36.75 to 68.25 MPa until strip steel coiling is finished. According to the coili