In the process of cutting wood, the front edge of the saw blade will be prolonged by the impact friction of the wood. If the front edge of the saw blade is not rolled, the swing of the front edge of the saw blade will be intensified, so that the saw blade will not go straight and the front edge of the saw blade will be tight, which is good for cutting, which is also an adjustment for Zhangjindu.
Another effect of the roller bending is that when the two saw wheels are perpendicular, the saw blade runs in the middle of the saw wheel. To show the saw saw saw, the upper wheel has to be bent forward so that the saw can show the saw, and the rear edge of the upper wheel will be raised when the upper wheel is bent forward. The phenomenon of loose front mouth, with bending will adjust this balance, this is another role of roll bending potential. "Bending" is the lingo of gold processing, which is taking an arc.