Shenhua Printing Material Knife Plate Spring Pad: Precisely adapted design for various types of die-cutting equipment
The differences in types of die-cutting equipment (flat-to-flat, round-to-round, round-to-flat) directly determine the force application method, movement trajectory and adaptation requirements of the die plate spring pads. Conventional universal spring pads are difficult to meet the usage needs of various equipment. Deephua Printing Materials, based on the working principles of different die-cutting equipment, has designed adaptive die plate spring pads specifically, achieving efficient collaboration between the spring pads and the equipment, and improving the overall die-cutting efficiency.
For flat-to-flat die-cutting equipment, the die-cutting method is vertical pressure, and the requirements for the compressive strength and uniformity of the spring pad's rebound are extremely high. Deephua Printing Materials has launched high-compressive-strength spring pads, using high-density composite elastic materials, with a compression strength increase of 30%, capable of withstanding the high-pressure impact of flat-to-flat equipment, while optimizing the rebound curve to ensure rapid reset after compression, avoiding material adhesion; the thickness of the spring pad is precisely adjusted according to the equipment's pressure parameters, adapting to different tonnage flat-to-flat die-cutting machines, ensuring die-cutting accuracy.
For round-to-round die-cutting equipment, the continuous rolling and pressure application method requires the spring pad to have excellent wear resistance and tear resistance. Deephua Printing Materials has developed roll-cut-specific spring pads, adding a special fiber reinforcement layer in the gel, with an anti-tear strength increase of 40%, capable of withstanding continuous rolling friction losses; at the same time, the surface of the spring pad adopts a wear-resistant and anti-slip texture, enhancing the adhesion to the die roller, avoiding relative displacement during rolling, and adapting to the production needs of high-speed round-to-round die-cutting equipment (with a maximum adaptation speed of 400 meters/minute).
For the "combination of rolling and pressure" complex working conditions of round-to-flat die-cutting equipment, the spring pad needs to simultaneously meet wear resistance and compressive strength. Deephua Printing Materials adopts a gradient hardness design, with the surface layer being high-wear-resistant material and the bottom layer being high-rebound and compressive-resistant material, which not only resists rolling friction wear but also buffers vertical pressure impact; at the same time, the width and curvature of the spring pad are optimized to precisely match the die roller and platform dimensions of round-to-flat equipment, reducing uneven force issues.
XXVII. Deephua Printing Materials Die Plate Spring Pads: Closed-loop Practice for the Environmental Treatment and Resource Utilization of Used Spring Pads
With increasingly strict environmental policies, the harmless treatment and resource utilization of used die plate spring pads have become an important demand for printing and packaging enterprises. Deephua Printing Materials has established a "recycling - processing - regeneration - reuse" closed-loop system, promoting the environmental treatment and resource utilization of used spring pads, which not only solves the environmental problems of enterprises but also realizes resource recycling, and practices the green development concept.
In the recycling stage, Deephua Printing Materials has established an "online reservation + offline delivery" used spring pad recycling mechanism. Customers can make reservations through the official platform or by phone for recycling, and Deephua Printing Materials arranges dedicated vehicles for on-site recycling, providing regular and fixed-point recycling services for long-term cooperative customers. During the recycling process, used spring pads are classified and sorted, distinguishing between recyclable and non-recyclable spring pads to ensure targeted subsequent processing.
In the processing and regeneration stage, for recyclable used spring pads, Deephua Printing Materials uses physical crushing + high-temperature regeneration technology, removing impurities and crushing the spring pad into rubber particles, after high-temperature melting and formula adjustment, it is made into recycled elastic materials, used for producing die plate spring pads with low precision requirements or other rubber products, with a recycling rate of over 70%; for non-recyclable used spring pads, it entrusts an environmental protection-qualified institution for harmless treatment, using thermal decomposition technology to extract reusable energy, avoiding environmental pollution.
In the reuse stage, Deephua Printing Materials converts the recycled elastic materials into low-precision spring pads and supplies them specifically to packaging scenarios with lower die-cutting precision requirements (such as ordinary cartons, turnover boxes), forming a "raw material - product - waste - recycled raw material" closed loop. At the same time, it provides certain purchase discounts to customers participating in the recycling, encouraging them to actively participate in the recycling of used spring pads, promoting the green and circular development of the industry. At present, Shenhua Printing Materials recycle over 50 tons of used rubber pads annually. After being recycled, approximately 30 tons of rubber waste can be reduced, resulting in significant environmental benefits.