The utility model discloses a
cut-off device for cation modified
polyester filament yarn production, which relates to the technical field of
polyester filament yarn production, and comprises a bottom plate, a winding mechanism is fixedly arranged at the top of the bottom plate, two symmetrically arranged vertical plates are fixedly arranged at the top of the bottom plate, a cross rod is rotatably arranged between the two vertical plates, and a guide wheel is fixedly sleeved on the rod wall of the cross rod. A buffering frame is fixedly arranged on the outer wall of the winding mechanism through a connecting plate, a buffering
assembly is arranged in the buffering frame, a transverse plate is fixedly arranged at the top of the vertical plate, a supporting frame is fixedly arranged at the top of the transverse plate, a rotating rod is fixedly and rotatably arranged on the supporting frame, and a
cut-off knife rotatably sleeves the rod wall of the rotating rod. According to the bottom plate, the winding mechanism, the vertical plate, the cross rod, the guide wheel, the
cut-off knife, the push cut-off
assembly and the buffer
assembly, elastic
extrusion can be conducted on
polyester filaments before winding, the filaments are kept in a stable tightening state after being
cut off, the situation that the filaments are loosened due to rapid rebound after being
cut off is avoided as much as possible, and the follow-up winding effect of the filaments is guaranteed.