Sealing and cutting mechanism of barrel film packaging machine

The invention provides a sealing and cutting mechanism of a barrel film packaging machine. Comprising a mounting frame, a first driver mounted on the mounting frame, a heat sealing plate in transmission fit with the first driver to achieve reciprocating displacement towards a barrel film, a second driver mounted on the mounting frame, a cutter in transmission fit with the second driver to achieve reciprocating displacement towards the barrel film, and a bag opening assembly connected with the mounting frame. Each bag opening assembly comprises an adsorption plate, a third driver for driving the adsorption plate to perform reciprocating displacement towards the barrel film, a bearing plate located below the adsorption plate, a pressing plate matched with the bearing plate to clamp the barrel film and a fourth driver for controlling the pressing plate to perform reciprocating displacement towards the bearing plate, and the number of the bag opening assemblies is two. The first bag opening assembly and the secon