Introduction to the structure of carton machinery corrugated roller

     The material of the corrugated roller is preferably chromium phase steel 35C, which has a small amount of deformation during heat treatment. After the roll body is processed, it should be nitriding treatment, or high-frequency quenching, and then chrome-plated to improve its hardness, wear resistance and extend the service life of the roll. 45 steel or low-carbon alloy steel can also be used, but in this case, the tooth profile should generally be processed after quenching and tempering, and no heat treatment after processing. The tooth profile of the corrugated roller should be milled under precise indexing with a special milling cutter that is formed, and then ground and formed on a precision grinder. The straightness of the tooth profile along the axis is required to be high, and the surface roughness is as low as possible. The average life of the corrugated roller is calculated by the length of the bonding, which varies with the material and processing method. The heat-treated one can generally be used for about 20 million meters. If the operation is improper, the life will be shortened.

         The structure of the shingle roll, the diameter of the upper and lower shingle rolls is generally 250-350mm, and the surface of the upper roll has several grooves for inlaying the paper guide. _Upper and lower corrugated rollers are usually composed of a hollow toothed roller barrel and an end cover shaft head. At present, the overall welding structure is mostly adopted, that is, after the inner wall of the roller simplified is processed by the car, and then the end cover shaft head is pressed into the roller body with an interference fit, and then welded into a whole. There are also shaft heads with flanges at both ends, which are connected by bolts. The structure is shown in Figure 5-12. The latter structure is used to facilitate tooth profile processing, and the machine bed for milling corrugated teeth can also be slightly shorter. However, it is necessary to calculate the pre-tightening force of the fastening bolts and carry out the strength calculation, using 45Cr steel and undergoing quenching and tempering treatment. Well, the rated tightening torque value of the 3# bolt is required to ensure safety. The bolt material.