(1) tube: copper and zinc alloy as raw material, etched and carved into a certain concentration of negative grain according to the flower pattern to accommodate the color
(2) scraper: there are three kinds of white steel, blue steel, stainless steel, white steel is hard (suitable for fine, moire and other patterns), blue steel is soft (suitable for large area), stainless steel is resistant to chemical corrosion.We often use blue steel.The scraper is installed on the top of the cylinder along the direction of the movement of the cylinder.The quality of its grinding, installation Angle (and tube Angle 19-35 degrees is appropriate) have a direct impact on the quality of printing.So the people who can control the drum machine well are all high-level and experienced people.
(3) knife: scraping the flower tube surface of the flower and other impurities and surface residual pulp, prevent color transfer.It runs against the direction of the cylinder installed in the back of the cylinder, it is less requirements for the knife grinding.
(4) matching gears: the roller printing machine is equipped with internal and external gears and transmission gears at the other end of the shaft, which is to adjust the advance and lag of the cylinder by turning the gears, so as to achieve the matching purpose.Later, electric power was used to reduce labor intensity.