Shenhua Printing: Special knife plate spring pads for waste removal, solving the problems of difficult waste removal and low efficiency in die-cutting

In the printing and die-cutting production process, waste removal is a key link that directly affects production efficiency and the quality rate of finished products. It is also one of the most easily overlooked pain points. Many enterprises have encountered problems such as broken strips during waste removal, small label strips lifting, difficulties in waste removal for irregular-shaped parts, and adhesive sticking of the waste removal edges to the die plates. This not only requires manual assistance for waste removal but also significantly increases labor costs. In severe cases, it can even lead to the scrapping of the entire sheet of products and the shutdown of the production line. Shenghua Printing has been deeply involved in the field of die-cutting consumables for many years. In response to the industry's pain points in waste removal, it has specially designed waste removal-specific die plate spring pads for different scenarios. This optimizes the waste removal effect by addressing the root cause of the consumables. It helps enterprises achieve automated and efficient waste removal.

Poor die-cutting waste removal performance is not only caused by the design of the waste removal knives and needles, but also by the performance and arrangement of the die plate spring pads. Ordinary general spring pads have insufficient rebound force and unreasonable arrangement, which can lead to the paper not being able to separate from the knife line in time, resulting in adhesion and lifting; while the hardness of the spring pad does not match the substrate, it can cause incomplete cutting and the inability of the waste removal edge to completely separate from the finished product, resulting in residual points. Especially in the die-cutting of self-adhesive labels, small-sized irregular-shaped parts, and precision electronic accessories, the difficulty of waste removal increases exponentially. Ordinary spring pads cannot meet the requirements of automated waste removal.

Shenghua Printing's waste removal-specific die plate spring pads have achieved comprehensive breakthroughs in terms of formulation, structure, and arrangement, precisely solving various waste removal problems. In terms of formulation, a special synthetic rubber formula with high rebound and hardness is adopted, with a rebound response speed 30% faster than ordinary spring pads. During die-cutting, it can quickly lift the paper and separate it from the knife line, preventing adhesion and lifting problems from the root. It also has excellent compression resistance and does not collapse during long-term continuous production, ensuring a stable waste removal force. In terms of structure, a waste removal-specific spring pad with a pre-pressing strip is introduced. A pre-pressing area is set at the waste removal edge position to press the waste removal edge first before cutting, ensuring uniform force on the waste removal edge and avoiding breakage or jamming of the waste removal edge. For small-sized labels and small hole positions, narrow-width high-density spring pads are customized to precisely fit the waste removal knife line, providing sufficient support to ensure thorough cutting and smooth waste removal.

For different waste removal scenarios, Shenghua Printing has created a refined product matrix for specific applications: for high-speed die-cutting waste removal of self-adhesive labels, a ultra-thin high-rebound waste removal spring pad is launched, with a thickness tolerance controlled within ±0.01mm, perfectly adapting to the requirements of anti-cut-through of the base paper, while ensuring complete separation of the waste removal edge from the label and achieving high-speed automated waste removal at hundreds of meters per minute; for large-size waste removal of cartons and boxes, a high-hardness strong-support waste removal spring pad is introduced, which can effectively lift the waste removal edge of thick substrates, avoiding breakage or jamming of the waste removal edge; for waste removal of irregular-shaped parts and complex hollowing, customized die plate arrangement schemes are provided, precisely designing the position and density of the spring pads according to the direction of the waste removal knife line, ensuring that every waste removal edge can be smoothly separated.

In addition to high-performance products, Shenghua Printing also provides exclusive waste removal process optimization services. The professional technical team can visit customers' sites to provide one-on-one selection and arrangement guidance for spring pads based on the customer's product type, die-cutting equipment, and waste removal methods, optimizing die-cutting pressure and waste removal parameters, helping enterprises completely摆脱 manual waste removal and achieve fully automated waste removal production. According to the actual tests of cooperative customers， after using Shenghua's waste removal-specific die plate spring pads， the waste removal efficiency has increased by more than 60%， the labor cost for waste removal has been reduced by 80%， and the waste removal defect rate has been lowered to below 0.1%.