1, Forming processDe-coiler—servo feeding—gap and cut off mould—forming ---collection table2, Equipment composing partsEquipment is composed of de-coiler ,feed system ,gap and cut off , forming machine,collection table ,electric control system , etc.3, Technical parameter of equipment main parts1,Auto-decoilera,Load capacity: 2 Tb,Inner diameter of coil: 490-510mm     Outer diameter≤1200mm 2,Servo feed and punching unfilled corner partsa, Servo motor : used Mitsubishi Servo motor , power: 1.0kwb, Punching unfilled corner die: 4 pillars punching diec, Material of punching die: Cr12.  quenching treatment3,Feeding: power 0.37kw4,Forming machinea,Forming frameb,Material of forming mould: GCr15, quenching treatment: rigidity: HRC56-62ºc,Motor:  7.5kw frequency conversion engine5,Electric control: PLC system