In recent years, many companies have begun to widely adopt fully automatic die-cutting machines. However, it's often found that after a period of use, these machines experience paper shredding issues. What could be causing this?

01 Improperly cut or sawed slots on the die-cutting blade

(1) The openings are strategically placed on the paper's fitness area, allowing the top and bottom edges to remain stationary or slightly open.

(2) The openings should be as close as possible to the locations on the finished product box where they can be glued inside or folded inside.

If there are intermittent small round holes on the paper, a small round hole must be opened on the die-cutting knife of the paper feeding direction on the die-cutting plate to prevent the waste paper inside the small holes from falling onto the thick steel plate and being dragged into the creasing line, which could cause the cracking of the creased area of the product.

(4) If the paper is thin, the compressive strength is high, and it is best to have fewer, shallower, and narrower openings. If the paper is thick, the compressive strength is lower, and it is better to have more, deeper, and wider openings.

(5) If the edges of the finished product box are flat, the opening should be more, deeper, and wider. If the edges are hooked, due to the interlocking of the paper edges and the finished product, the opening can be less, shallower, and narrower.

(6) The faster the equipment operates, the greater the instantaneous speed when pulling from the stationary mold area, and the higher the tensile strength. To prevent tearing, a large number of consecutive dots must be printed, and the opening must also be larger, deeper, and wider.

The reason for the adhesive strip on the die-cut version.

The adhesive strip on the die template is positioned on both sides of the die-cutting blade, used to propel the paper off the blade after each die-cut. If the strip is compressed, its aspect ratio is less than that of the blade, or if there is too little adhesive, or it wears out during the die-cutting process, the paper may stick to the blade. In such cases, pulling the paper with a grip can cause it to tear. Additionally, instead of using self-adhesive strips, opting for manually applied adhesive may lead to mistakes, such as applying it to the surface of the strip, which can stick the paper and cause it to tear under high pressure. Therefore, it is essential to inspect and replace the adhesive strip immediately.

March Die Cutting Pressures

High die-cutting pressure, or extremely high pressure on a specific part of the work, can result in deeper knife marks on thick steel plates. These knife marks can catch the edges of the paper, causing it to tear or break. Solution: Adjust the paper working pressure to make it moderate and even.

04 Challenges from Stamping Dies

Long storage times or poor quality, unfavorable storage conditions, can lead to blurred creases, sticky surfaces with adhesive, and the ability to stick to paper under high pressure; a light dusting of calcium carbonate may help. Uneven crease mold surfaces or a loss of adhesiveness in the creasing process due to paper dust and debris can also catch and tear paper; replacing the crease mold or using adhesive may be necessary.

Challenge of the 05 Fully Automatic Die Cutting Machine

Throughout the entire application process of the fully automatic die-cutting machine, if the thickness of the paper changes, it is very easy for the paper pick to lose its extensibility and fail to grip the paper. Some paper picks exert excessive tensile force on the paper, causing it to break. The paper pick should be adjusted immediately to ensure uniform tensile force on the paper.

In addition, throughout the process, we have closely aligned with the actual situation, deeply analyzed the challenges, and found solutions to overcome them.