Pre-bending device for iron can production

The utility model belongs to the field of iron can production, and particularly relates to a pre-bending device for iron can production, which comprises a main body assembly and a bending assembly, a clamping assembly is arranged above the main body assembly, the main body assembly comprises a transmission table, a connecting plate is fixedly arranged on the upper surface of the transmission table, and the bending assembly is arranged on the connecting plate. A conveying wheel is arranged at the tail end to convey the iron cans, a side fixing plate and an upper clamping wheel are arranged above the conveying wheel to limit the iron cans so as to prevent the iron cans from sliding in the bending process, meanwhile, a second driving motor drives a screw rod to rotate, the screw rod is in threaded connection with a threaded sleeve located in a sliding cavity, and therefore the iron cans can be bent. The upper surface of the threaded sleeve is connected with a bottom connecting frame at the bottom of the bending