Structure for synchronous work of bag feeding, connection and bag supporting

The invention relates to a structure for synchronous work of bag feeding and transfer bag supporting, which comprises a filling mechanism, a bag conveying mechanism is arranged below the filling mechanism, and a swing arm bag feeding mechanism is arranged behind the bag conveying mechanism; the bag feeding mechanism comprises a bag feeding seat body which is used for horizontally moving back and forth in a reciprocating mode, a connecting rod is hinged to the bag feeding seat body, the other end of the connecting rod is hinged to a swing arm of the swing arm bag feeding mechanism, and the top end of the swing arm is hinged to the machine frame through a rotating shaft. When the bag conveying seat body translates forwards to convey bags, the bag conveying seat body controls the swing arm to be in synchronous linkage through the connecting rod, the swing arm of the swing arm bag feeding mechanism swings and feeds the packaging bags with opened bag openings upwards to the position below the filling mechanism, ba