Downdraft-type swinging arm bag feeding device

The invention relates to the field of packing, in particular to a downdraft-type swinging arm bag feeding device. The downdraft-type swinging arm bag feeding device comprises a downdraft-type liftingdevice and a swinging arm device; a bag groove, a lifting shaft and a sucking disc are arranged on the downdraft-type lifting device; the sucking disc is arranged below the bag groove; a bag is arranged in the bag groove; the sucking disc moves vertically along with the lifting shaft to suck the bag; the swinging arm device is arranged on the rear end of the downdraft-type lifting device; a bag clamping small arm is arranged on the swinging arm device, and swings along with the swinging arm device; and the bag clamping small arm clamps the bag on the sucking disc by swinging. The downdraft-type swinging arm bag feeding device is simple in structure and easy to maintain; a packing bag can be arranged from the upper side for finishing filling of the bag without halting; automatic bag opening, automatic material disc