FILLING CHUTE OF AUTOMATIC VERTICAL FILLING PACKAGING MACHINE

To provide an automatic filling packaging machine capable of filling a package without creating defective products and decreasing packaging speed (production efficiency) even when packaging and filling gas such as inactive gas together with food such as powder and dried bonito flakes easy to fly up.SOLUTION: A package filling chute 7 of an automatic filing packaging machine in accordance with the present invention is provided with: a consecutive gas injection pipe 104 for consecutively injecting inactive gas in an oblique downward direction directed to a center in a packaging bag F3; an intermittent inactive gas injection pipe 105 concentrically arranged around an injection material outlet part 102b as a double tube 2 and intermittently injecting the inactive gas toward a lower part within the packaging bag F3 only during a specific period in which filling material is injected in the packaging bag F3. A lower end of the intermittent inactive gas injection pipe 105 comprises an oblique part obliquely upward in a direction toward the consecutive inactive gas injection pipe 104.SELECTED DRAWING: Figure 2 【課題】 粉末や削り節などの自重が軽く舞い上がり易い食品などの充填物と共に不活性ガスなどの気体を充填包装を行った場合であっても、不良品を発生させることなく、且つ包装速度（生産能率）を低下させることなく充填包装可能な自動充填包装機を提供する。【解決手段】 本発明に係る自動充填包装機の製袋充填シュート７は、包装袋Ｆ３内中央に向けた斜め下向き方向に不活性ガスを連続噴射する連続不活性ガス噴射管１０４と、充填物出口部１０２ｂの周囲に同心的な２重管として設けられ、包装袋Ｆ３内に充填物が投入されたときに所定期間だけ、包装袋Ｆ３内の下方に向けて不活性ガスを間欠的に噴射する間欠不活性ガス噴射管１０５と、を備えると共に、間欠不活性ガス噴射管１０５の下端は、連続不活性ガス噴射管１０４に向けて斜め上方に傾斜されている部分を有することを特徴とする。【選択図】図２