Automatic roll changing method and roll changing device

The invention provides an automatic roll changing method and a roll changing device, and relates to the technical field of battery manufacturing. The automatic roll changing method is used for the roll changing device, the roll changing device comprises a first winding mechanism, a second winding mechanism, a cutting mechanism and a rubberizing mechanism, and the automatic roll changing method comprises the steps that a first pole piece material roll is arranged on the first winding mechanism, and a material head of the first pole piece material roll is placed on the rubberizing mechanism; the cutting mechanism is used for cutting a material belt of a second pole piece material roll on the second winding mechanism; and the material head of the first pole piece material roll and the material tail of the second pole piece material roll are bonded by the rubberizing mechanism. By means of the automatic roll changing method, automatic roll changing of the pole piece material roll can be achieved. 本发明提供了一种自动换卷方法及换