Automatic production line for PLA (polylactic acid) biodegradable straws

The invention discloses a PLA biodegradable straw automatic production line which comprises a connecting plate, a circulating cooling structure, an automatic cutting and stacking structure and a melt extrusion structure, the circulating cooling structure is arranged on the connecting plate, the automatic cutting and stacking structure is arranged on the connecting plate, and the melt extrusion structure is arranged on the connecting plate. The invention belongs to the technical field of automatic straw production lines, particularly relates to an automatic production line for PLA biodegradable straws, and effectively solves the problems that PLA straws melted and extruded by an automatic straw production line in the current market need to be cooled, the water temperature of an inner cavity of a water tank is continuously increased, and the cooling effect of the PLA straws is not affected. The problems that in the prior art, workers need to continuously monitor the water temperature and replace cold water, the