Button cell sealing machine

A button cell sealing machine comprises an upper die assembly, a lower die assembly and a lifting plate. The upper die assembly is fixedly arranged; the plate face of one side of the lifting plate faces the upper die assembly and moves up and down relative to the upper die assembly. The lower die assembly is located under the upper die assembly, and the lower die assembly is far away from or close to the upper die assembly along with ascending and descending of the lifting plate. The side faces, opposite to the lifting plate, of the lower die assembly are provided with a positioning boss and a positioning groove which are matched with each other respectively, and the positioning boss is inserted into the positioning groove so that the lower die assembly can be movably installed on the lifting plate. Compared with the prior art, the button cell sealing machine has the advantages that the maintenance convenience can be improved, and the service life of equipment can be prolonged. 一种纽扣电池封口机，包括上模组件、下模组件和升降板；所述上模组