Polyester yarn extrusion device

The utility model relates to the technical field of polyester yarn processing, in particular to a polyester yarn extrusion device which comprises an extrusion workbench, two sets of side frames are symmetrically arranged on the top of the extrusion workbench, a top seat is installed on the top of each set of side frame, and an extrusion roller shaft and an adjustable roller shaft which are arranged in parallel up and down are installed between the two sets of side frames. Lifting sliding grooves are symmetrically formed in the opposite sides of the two sets of side frames, lifting sliding bases are installed in the lifting sliding grooves in a sliding mode, and bearings used for installing the extrusion roller shafts and the adjustable roller shafts are embedded in the outer walls of the lifting sliding bases and the outer walls of the side frames. The lifting sliding grooves and the lifting sliding seats are arranged on the two sets of side frames, the two ends of the adjustable roll shafts are installed on