Patent ID: 7334378

Claim:
A packaging machine comprising a longitudinal seal forming unit that forms a pre-packaging body by forming a packaging sheet into a cylindrical shape by overlapping the longitudinal edges of a single packaging sheet having a strip shape or opposed longitudinal edges of two packaging sheets each having a strip shape and sealing the overlap of the packaging sheets, a lateral seal forming unit that seals the lower end of the pre-packaging body, a contents supply unit for loading a predetermined amount of contents into the pre-packaging body, a cutting unit that, after the upper end of the pre-packaging body loaded with the contents has been sealed by the lateral seal forming part, cuts the upper end seal part of the pre-packaging body, and a packaging discharging unit that discharges the package body obtained from the cutting unit to the outside of the machine, wherein the packaging discharging unit comprises a housing, a weighing bucket in the housing that receives the package body, a weighing load cell that measures the weight of the package body provided on the weighing bucket, a discharging chute that discharges the weighed package body to the outside of the machine, an opening/closing lid that discharges defective package bodies judged by weighing with the weighing load cell to be outside a weight range of non-defective packaging bodies from a defective item outlet, formed in a portion of the discharging chute, by opening and closing the defective item outlet by rotation within a vertical plane, and a discharging guide affixed to the opening/closing lid that contacts and guides the defective packaging bodies discharged from the defective item outlet to a defective item recovery box.