The application scenarios and key points for industry adaptation of knife plate spring pads

The application scenarios of the knife plate spring pad cover multiple industries such as packaging, printing, electronics, and automobiles. It is mainly compatible with various die-cutting processes, such as carton die-cutting, label die-cutting, electronic component die-cutting, and automotive interior part die-cutting. The die-cutting requirements of different industries have clear compatibility standards for the material, hardness, and structure of the spring pad.

In the packaging industry, die-cutting of paper materials such as cartons and color boxes is the main application scenario for knife plate spring pads. In this scenario, the die-cutting material has A moderate thickness and low hardness. Usually, a solid polyurethane elastic pad with a Shore A 40-60 is selected, which can not only ensure that the cutting edge smoothly cuts into the material but also avoid problems such as paper damage and burrs. For die-cutting of thicker paper materials such as corrugated boxes, elastic pads with slightly higher hardness (Shore A 60-70) should be selected to enhance the buffering and supporting force and ensure uniform die-cutting depth.

The die-cutting requirements in the electronics industry are even more stringent. They are mainly used for die-cutting auxiliary materials in electronic products such as mobile phones and computers, such as foam, adhesive stickers, and insulating sheets. Most of these materials are flexible or thin, with extremely high requirements for die-cutting accuracy (the error needs to be controlled within ±0.1mm). Therefore, high resilience and low deformation silicone or polyurethane elastic pads should be selected, with A hardness usually between Shore A 30 and 50. At the same time, they should be designed with a grooved structure to precisely remove waste from auxiliary materials and prevent adhesion.

The die-cutting scenarios in the automotive industry mainly focus on interior parts and seals, such as car floor MATS and door sealing strips, with materials mostly being rubber, leather and other highly resilient materials. In this scenario, the die-cutting pressure is relatively high and the operation frequency is frequent. Therefore, polyurethane elastic pads with extremely high wear resistance should be selected, with A hardness controlled between 70 and 80 on the Shore A scale. They also need to have good temperature resistance (-40℃ to 80℃) to adapt to the harsh usage environment of the automotive industry.

In addition to the above-mentioned mainstream industries, knife plate spring pads are also widely used in medical, stationery and other fields, such as die-cutting of medical dressings and stationery cutting. The material, hardness and structure of the spring pad need to be selected specifically according to the material properties and die-cutting process parameters to achieve the best die-cutting effect.