Applicable battery cells pole piece of punching molding automatically in laminated technology, Automatic envelop machine through taking material from the trough, cover the separator, envelop the separator, top side sealing and cutting edge sealing, winding material workstation, will be automatic envelop the pole piece; Multiple trough structure, can be take put multiple pole pieces according to size, replace product simple and quick; Automatically puts the separator fixed-length cutting, and eliminating the electrostatic; With envelop multiple pole piece at the same time, improve work efficiency; Control system: Servo module transmission, PLC program control, touch screen operation