It is a versatile packaging machine. After the material enters the top of the packaging machine, the metering part feeds the determined quantity into the material channel. When the roll wrapping material passes through the outer wall of the material passage, it is wound into a cylindrical shape by the former, and the longitudinal sealer secures the longitudinal seam. The transverse sealer completes the top seal of the package and the bottom seal of the next bag, forming two welds. Since the blanking channel is wrapped by the packaging bag, the bottom sealing and sealing can be directly cut into the bag, and then a station is moved to complete the sealing and sealing with a cutter to complete the packaging process.
The roll packaging material is single layered and composite. Single layer such as moisture-proof cellophane, polyethylene, polypropylene, high density polyethylene, composite such as stretched polypropylene/polyethylene, polyethylene/cellophane/aluminum foil. In addition, there are heat sealable materials and the like. The package sealing type has a pillow seal, a three-side seal and a four-side seal.