Bottom paper assembling equipment for battery cylinder

The backing paper assembling equipment comprises a machine body, a battery barrel positioning mechanism and a backing paper punching and barrel cutting mechanism, the battery cylinder positioning mechanism comprises a positioning disc and a jacking mechanism; the positioning disc is fixedly arranged on the machine body, and a positioning hole is formed in the positioning disc; the jacking mechanism is located below the positioning disc. The backing paper punching and barrel cutting mechanism comprises a punching template, a backing paper pressing plate, a punching head and a pressing shaft; a punching hole is formed in the punching template; a feed hole is formed in the backing paper pressing plate; the punching template is arranged on the positioning disc, the backing paper pressing plate is arranged on the punching template, and a paper feeding channel is reserved between the backing paper pressing plate and the punching template; the punching head is located above the backing paper pressing plate and arran