In the process of die-cutting, a series of large and small problems are often encountered, which will not only reduce production efficiency but also affect product quality. The following is an explanation of the common problems encountered in die-cutting production, so that you can prevent them in actual production.
1. The precision of die cutting is not high
The reasons for the low precision include the die-cut version itself and the printed matter. The hand-made die-cutting plate has a large error; the different working environment of die-cutting indentation and printing will cause paper deformation, resulting in inaccurate position of die-cutting indentation, especially the deformation of the paper after glazing and lamination is more serious, affecting Die cutting accuracy.
2. Die-cut blur version
Die-cut paste plate means that the paper sticks to the die-cut plate. The reasons for this failure are: the density or hardness of the sponge rubber strip pasted around the die-cutting knife is too small, and the resilience is insufficient; the edge of the die-cutting knife is not sharp, and the paper is too thick, causing the knife to stick to the knife or die-cutting. According to the distribution of the die-cutting knives, the sponge strips with different hardness can be reasonably selected or the die-cutting knives can be replaced.
3. Die-cut loose version
The so-called loose plate refers to the phenomenon that the waste edge and the plate are scattered during the die-cutting process, resulting in the unsmooth phenomenon. When the loose plate is serious, it will affect the die-cutting and the transfer of the board, thus affecting the normal production. The main reasons for the loose version are the mistakes in the die-cutting plate making process and the improper selection of the elastic rubber strip (or sponge); at the same time, other factors may also cause the loose version.
Fourth, the cutting edge is not smooth and fluffed during die cutting
The main reason for this phenomenon is related to the quality of the steel knife and the die-cutting pressure. Because the shock-proof material requires different thicknesses and different shapes to be combined for different products, the resources can be well allocated. At this time, the die-cutting process is required. It is transformed, and the whole block of shock-proof raw materials is subjected to die-cutting processing such as cutting and stamping.
5. Exploding line (dark line)
Explosion line means that when the product is die-cutting or the finished product is folded, the die-cutting pressure of the board is too large, which exceeds the bearing range of the board fiber, causing the board fiber to break or partially break at the processing place. "Dark lines" are machining lines that should not be present. This is a common problem in die-cutting, especially in dry weather.
6. Shift of the indentation line
Under the action of die-cutting pressure, the twisting of the indented steel wire will cause the indentation line to move; insufficient die-cutting pressure will cause the indentation to be not full. This problem can be improved by replacing the die-cutting plate and increasing the die-cutting pressure respectively.
The above six points are common die-cutting processing problems. I hope to remind all friends that I believe there are other problems in die-cutting processing, but the above are relatively common. I will continue to update more about Various problems and solutions in die-cutting processing are given to you!