... forming machine includes uncoiler, feeding device punching device, feeding guice, main machine, 1 The production line process flowUncoiling—guiding device---lubricating system----roll forming ... FEA analysis, which can promise the roller precise.Roll forming step: about 17 stepsRoller material: Cr12 ... structure. motor drives, chains transmit.The roller adopts combination structure, and its art adopts ...