Common faults and solutions in indentation processing of full-automatic die-cutting machine

1. The indentation position of the full-automatic die-cutting machine is inaccurate.

Fault cause: the position is inconsistent with the printed product; The die cutting machine is not aligned with the printing grid; There are different rules. The paper feeding position is inconsistent when the die-cutting machine is running; During operation, the paperboard is deformed or stretched, and overprint is not allowed. Solution: recalibrate the template and set the grid of the printing die-cutting machine according to the product requirements. Adjust the paper feeding and positioning rules of the die-cutting machine to keep the paper feeding position consistent; Reduce the influence of printing and material defects on the quality of die-cutting machine according to the fault causes.

2. Unclear gap: dark line and explosion line

Dark lines refer to excessive indentation, while burst lines refer to excessive indentation pressure and cardboard damage. The fault reason is: the thickness calculation of copper wire paper pad is inaccurate, and the paper pad is too low or too high; The choice of copper wire is inappropriate; Improper pressure adjustment of the forming machine, too large or too small; The paper is too poor and the water content of the paper is too low, which increases its brittleness and reduces its toughness. Solution: the thickness of steel wire paper cutting should be recalculated and adjusted. Check whether the selection of copper wire is appropriate; Properly adjust the pressure of the die-cutting machine; According to the state of the molded paperboard, adjust the indentation process conditions of the die-cutting machine to adapt them as much as possible.