Erasing and printing integrated device for optical fiber cable sheath

The invention discloses an erasing and printing integrated device for an optical fiber cable sheath. The device comprises an automatic unwinding machine, an automatic erasing machine, a diameter measuring instrument, a traction machine, a printing machine and an automatic winding mechanism, wherein the automatic unwinding machine, the automatic erasing machine, the diameter measuring instrument, the traction machine, the printing machine and the automatic winding mechanism are sequentially arranged and fixed on a working table, a knife supplementing mechanism further comprises a knife supplementing motor, a knife supplementing hook and an L-shaped installing plate, two clamping shafts penetrate through supporting columns of a machine frame, the rear side surfaces of the clamping shafts arefixedly connected with air cylinders arranged on the back side surfaces of the supporting columns of the machine frame through adapting pieces, a left main shaft is further sleeved with a left brakedisc, the left brake disc