Extrusion opening structure for PE film preparation

The utility model discloses an extrusion port structure for PE (polyethylene) film preparation, relates to the technical field of PE film preparation equipment, solves the problem that two sides of a wider extrusion slit are inconvenient to synchronously adjust, and comprises a PE film preparation machine and an extrusion bottom plate fixedly mounted at the bottom of the bottom end of the PE film preparation machine, a screw rod group is fixedly inserted into the top of the inner bottom end of the PE film preparation machine, the screw rod group is provided with a plurality of groups of screw rod welding combinations, spacing rings are fixedly mounted at the joints, the screw rod group is inserted into the top of the inner bottom end of the preparation machine and is in threaded connection with a plurality of groups of corresponding screw blocks in pairs, and the bottoms of the screw blocks are connected with the surface of an extrusion top plate through rotating shafts and supporting rods; the lead screw set