POLE PIECE FORMING APPARATUS

The present application provides a sheet forming device, comprising a feeding unit, a slitting unit, a plurality of winding units, and a wrinkle removing unit. The feeding unit provides a parent sheet. The slitting unit slits the parent sheet into a plurality of sheets. The winding units pull a sheet belt. Each winding unit winds one corresponding sheet. The slitting unit is arranged between the feeding unit and the winding units. The wrinkle removing unit is arranged between the slitting unit and the winding units. The wrinkle removing unit comprises a first roller and a second roller which are oppositely arranged. The first roller comprises a first rolling part. The first rolling part and the second roller are used for rolling the edge of a slitting edge of a sheet. According to the sheet forming device provided by the present application, the slitting edge of the sheet is rolled by the first rolling part of the first roller and the second roller, so that the risk of forming wrinkles on a sheet after slitting of a parent sheet is effectively reduced, the yield of sheets is improved, and the safety of a battery, produced from the sheet, in a working process is improved.