How to die-cut silicone foam with high precision?

How to die-cut silicone foam with high precision?

 

 

The foam on the knife template is mainly rebound, which means that the raw materials on the die-cutting die will not be placed on the bottom plate of the die. After the raw material is cut, it can quickly leave the die without taking the raw material. Another effect is that it has a fixed effect on the raw material at the moment of pressing, especially when the punching is narrow and the sharp edge is close to the edge. Under the fast punching of the die-cutting, the raw material cannot be quickly pressed. If it jumps out, it cannot be calibrated thoroughly. The raw material that is die-cut will have white frames and wrinkles. As an auxiliary material, the padding foam also has a vital function, and the resilience rate and relative density And soft strength are the three key parameters of cost-effective pad knife foam, and the three are indispensable.

 

High precision die-cut silicone foam

All in all, in the case of choosing pad foam, the higher the resilience and the higher the relative density, the better the actual effect of the laser knife mold pad rebound. The longer the stamping service life, the different raw materials and mold shells need to be selected. The same soft strength can ensure that the mold shell is more durable and has a better practical effect when stamping.

 

Knife sponge to deal with the problem of sponge surface viscose

 • Add a pet protective film on the surface of the pad knife sponge, which not only improves the strength of the sponge, but also reduces the adhesive condition during the entire stamping process;

 • Use soft-skinned knife sponge, because the soft-skin is smoother and harder than without the soft-skin, and the ductility is stronger;

 • Use special-purpose self-adhesive sticking pad knife sponge. This sponge is silicone foam. Because the material is silicon, it is characterized by non-stick double-sided tape, which can immediately have the practical effect of self-adhesive sticking.

 

Small gaps and small round holes blocking problems

 • Can be filled with rubber bands;

 • Fill the small round holes with structural glue;

 • Use extremely high-strength, elastic and strong pad knife sponge.