To improve feeling of mouth touch around a bung hole and to improve working efficiency when a lip is stuck at a specified position.

A seal wheel freely rotatably arranged and provided with a seal plate 28 on which a recessed part 29 corresponding to the lip is formed, a driving part for placing the seal plates 28 at a plurality of positions, a belt- like film feeding part for feeding a belt-like film consisting of the lip and a sheet, a loading part where the belt-like film is wound on the seal wheel at a loading position, a cutting part for cutting the belt-like film at a cutting position to form a film with the lip, a primary seal part where the film with the lip is temporarily fixed at a lip sticking position of a packaging material and a secondary seal part where the temporarily fixed film with the lip is completely stuck, are provided.