▎ 摘　　要

NOVELTY - The utility model relates to the technical field of graphene printing, and claims a printing ink pipe for printer uniformly printing graphene on plastic film, comprising a impression pipe; the outer surface of the impression pipe is provided with an ink inlet and an ink outlet; the inner part of the impression pipe is provided with an ink flow groove; the outer surface of the impression tube is fixed with an outflow block; the top of the outflow block is provided with a mounting opening; the inner part of the mounting opening is provided with a brush; two ends of the impression tube are fixed with a mounting shaft. the plastic film is uniformly printed with graphene printing ink pipe for printing machine; the outer surface of the impression pipe is provided with an ink flow outlet; the outer side of the ink flow outlet is fixed with an outflow block; the top of the outflow block is provided with a mounting opening; the mounting opening is provided with a brush; the brush in the mounting opening can make the ink flowing out from the ink flow outlet flow down uniformly; and the part of the grinding material flow outlet is blocked, the brush will uniformly distribute the ink, will not affect the printing quality.