Method for reducing upwarp of steel belt plate head at door roller

The invention discloses a method for reducing upwarp of a steel belt plate head at a door roller, belongs to the field of steel belt production, and solves the problems of unqualified products and low yield caused by the fact that the steel belt plate head is easy to fold during rolling of an existing steel belt. According to the method, the cut-in angle of a steel belt plate head impacting a door roller is reduced to be smaller than 30 degrees. According to the structure for reducing the upwarp of the steel belt plate head at the door roller, the problem of plate head folding is effectively reduced, the yield of the steel belt is further improved, direct transformation can be carried out on an existing production line, and the production line is relatively convenient to update. 本发明公开了一种减小钢带板头在门辊处上翘的方法，属于钢带生产领域，解决现有钢带收卷时，钢带板头容易折叠而造成的产品不合格，成材率低的问题。该方法是将钢带板头撞击门辊的切入角减小至小于30°。本发明的减小钢带板头在门辊处上翘的结构，有效减少板头折叠的问题，进而提高钢带的成材率，可在现有的生产线上直接改造，生产线更新相对方便。