制造圆筒设备,首先要用卷板机将钢板卷压成需要的圆弧。而由于卷板机两个下托辊之间有一定的距离,使钢板两端总有一段板头保持平直状态,以往的方法是用人工预先将钢板的两端用大锤敲成圆弧状,再上卷扳机卷制。劳动强度大,尤其是较厚较宽的钢板,人工锤就更为困难了。 Manufacturing cylinder equipment, we must first use the plate coiling machine rolled into the required arc. Since there is a certain distance between the two lower rollers of the bending machine, there is always a flat head at both ends of the steel plate to keep the flat state. In the past, the two ends of the steel plate were artificially preformed by using a hammer Shape, then roll the trigger roll. Heavy labor, especially thicker and wider steel, artificial hammer more difficult.