Several factors affecting the quality of die cutting
1. When the wood die-cut plate is not flat, the seam is perpendicular to the worktable, but not necessarily perpendicular to the die-cut plate. After a period of die-cutting on the machine, the die-cutting plate was compressed and flattened. The die-cutting knife originally installed on the curved part of the die-cutting plate was inclined, resulting in die-cutting burrs, or even imperviousness. No matter how to pressurize and fill the bottom, it cannot be solved.
2. The uneven thickness of the die-cutting plate will cause the die-cutting strip to become uneven. When die-cutting thin paper, the high strip will touch the paper first, and the paper will be dragged to cause the die-cutting position , The second-lowest adhesive strip can not effectively eject the paper from the die-cutting blade, and make the finished product loose.
3. The expansion and contraction of the wood die-cut plate. The inferior quality wood does not undergo strict processing, and it still has expansion and contraction after it is made into a die-cutting plate, which will make the size of the die-cut product larger or smaller. In severe cases, it may squeeze the inclined die-cutting knife or cause a gap at the interface.
4. The service life of elastic strips. The validity period of the rubber strip is only about two years. It is generally required to be protected from light. The elasticity of the expired rubber strip becomes poor, the rebound speed becomes slow, and the high-speed die cutting will shorten the service life of the rubber strip.
5. The surface structure of the elastic rubber strip. The rubber strip with skin on the surface has no adsorption force to the paper. When the paper is die-cut at high speed, it can be quickly pulled away without bulking. The surface of the ordinary rubber strip has an adsorption force on the paper, and the paper product will be torn by the teeth during high-speed die cutting.
6. The quality of the glue used for viscose strips is poor, so that the strips are shifted during die cutting, so that the die cutting is out of position, and the die cutting burrs and even indentation cracks appear.
7. The hardness and height of the elastic strip can not meet the ideal requirements
8. The height of the indentation line is unreasonable, and the full indentation effect cannot be achieved
9. The groove width of the indentation bottom mold is not accurate enough
10. Various unfavorable factors in paper processing will affect the appearance of the finished carton (such as lamination, glazing, various micro-processing in the mounting and die-cutting plate production, etc.)
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