Analysis and Processing of Folds in Kobo Printing Press

The KBA Rapida 104 four-color machine used to print a coated paper with a basis weight of 105 g/m2, causing serious wrinkles in the tail.

From the point of view of the failure phenomenon, it was initially determined that the wrinkles were generated after the first color combination pressure. After analysis, it was found that before the paper entered the first color group, the buckling force was uneven and could not hold the paper, causing the paper to slide within the tusks, resulting in unevenness of the paper surface, resulting in the first color combination. Wrinkles occur when pressed. Further analysis, which part of the space problem. First of all, with the transfer paper as the benchmark, the delivery device of the KBA Rapida 104 four-color machine is an intermittent double-row tooth roller, followed by a single-row tooth transfer roller, and then the paper enters the printing unit. Jog the machine, enter a few sheets of paper into the tusks, hand-pull the end of the paper, and find that there are a few tusks in the transfer cylinder and cannot hold the paper. Increase the enthusiasm of these fangs and adjust them with uniform and consistent standards. Reboot, troubleshoot.