Shenhua Printing Material Knife Plate Spring Pad: Special Anti-Fatigue Stable Discharge Waste Solution for High-Speed Roll Forming Die Cutting

High-speed sheet die-cutting (such as label sheets, packaging sheets, film sheets) is the core mode of large-scale production, featuring fast production speed and large batch size. It has extremely high requirements for the fatigue resistance, waste removal stability, and uniform pressure transmission of the cutting die plates. Conventional die plates are prone to rapid elastic degradation, edge damage, and waste removal jams during high-speed sheet die-cutting, resulting in fluctuations in die-cutting accuracy and production interruptions, and are difficult to adapt to the production rhythm of high-speed sheets. Deephua Printing Materials focuses on the pain points of high-speed sheet die-cutting and develops special die plate elastic pads with anti-fatigue and stable waste removal capabilities, helping enterprises achieve large-scale and efficient production.

In the research on anti-fatigue materials, high-toughness anti-fatigue composite materials are used, with anti-fatigue additives and shear-resistant components added, enabling the elastic pad to withstand more than 900,000 compression fatigue cycles, with the elastic degradation rate controlled within 3% during long-term high-speed sheet die-cutting, and the edge anti-tear strength increased by 50%, avoiding cracking and shedding due to high-frequency reciprocating stress, and extending the service life of the elastic pad. The material's rebound response time is optimized to less than 0.008 seconds, which can fully keep up with the pressure - reset rhythm of high-speed sheet die-cutting, eliminating the incomplete die-cutting caused by rebound lag.

In terms of waste removal and structural design, the surface of the elastic pad is treated with low-friction matte finish, reducing the friction between the sheet and the pad, avoiding sheet adhesion and deviation, and adding sheet guiding patterns to guide the sheet to run smoothly, improving the stability of waste removal; the all-area equal-density molding process is adopted, with thickness error controlled within ±0.02mm, ensuring uniform pressure transmission throughout the sheet, avoiding sheet damage and die-cutting accuracy deviation caused by excessive local pressure; a 1.0-2.0mm common thickness specification is launched, suitable for different width sheet (500-1500mm) die-cutting needs, and can be flexibly selected based on sheet speed and material. After applying this solution to a label sheet printing factory, the high-speed sheet die-cutting speed increased by 25%, the replacement cycle of the elastic pad was extended from 6 days to 25 days, the frequency of waste removal jams and machine stoppages decreased by 85%, and the production accuracy stability of batch production significantly improved.