Doctor blade air tube selection and maintenance
The selection of doctor blade air tube has an important influence on the use of doctor blade. By using the air tube doctor blade holder, the contact pressure between the blade edge and the roller can be evenly distributed to prevent scratching the roller. In addition, by adjusting the air pressure, the contact line pressure between the blade and the roller can be adjusted within a certain range to meet the needs of different roller surface materials and unit speeds. This design not only extends the service life of the blade, but also improves work efficiency and protects the roller surface from damage.
Advantages of air tube doctor blade system:
Uniform pressure distribution: The flexibility of the doctor blade air tube ensures uniform contact pressure between the doctor blade and the roller, avoiding damage to the roller surface.
Adjustability: The line pressure of the doctor blade can be adjusted online by adjusting the air pressure to meet different working conditions.
Durability: The contact pressure is evenly distributed, which extends the service life of the doctor blade, reduces the replacement frequency and reduces maintenance costs.
High efficiency: Reduce the number of times the doctor blade is replaced and the maintenance time, greatly improving work efficiency.
Doctor Blade air tube selection:
doctor blade air tube is generally composed of an outer braided layer and an inner lining material. According to the use requirements, different raw material ratios are generally used when making the doctor blade air tube and undergo multiple vulcanization treatments and temperature and pressure resistance tests. The outer braided layer requires wear resistance, tensile resistance, temperature resistance, compression resistance, etc. The lining material must be heat-resistant, pressure-resistant, corrosion-resistant, and oxidation-resistant, so as to ensure that the DST doctor blade loading is long-term, uniform and reliable.
Replacement cycle of doctor air tube:
Regularly check the working condition and performance of the doctor blade air tube to detect potential wear or damage in time. Once the air tube performance is found to be degraded or damaged, it should be replaced in time to avoid affecting the working efficiency of the doctor and paper quality. It is recommended to formulate a reasonable replacement cycle based on the use and material characteristics of the doctor blade air tube and perform preventive replacement to avoid sudden failures. (In addition, the airbag needs to be cleaned regularly to avoid the deposition of dust and impurities to keep it in good working condition.)
From the above, it can be seen that a suitable doctor blade air tube is very important for the stability and efficiency of the doctor blade system. The uniformity, material, and replacement cycle of the air tube are all factors that need to be considered. Comprehensive considerations should be taken to ensure the best performance and best benefits of the doctor blade system.
