(1) The suction tube of the aluminum straw machine is poorly fitted; Check the position of the glue point, check the air pressure of the spray gun, whether the glue head is blocked, etc.;
(2) The place where the bag sticks to the tube is blocked; the glue-spraying and extubation electric eyes are blocked, press the empty button to empty the bag;
(3) The straw is broken; troubleshoot the problem and wear the straw again.