Foam cutting engraving die

Classification of foam:

Foam can be divided into two types: sponge and foam.

   As long as the die-cut products in our die-cutting industry are foam, this type of material has a common characteristic. Compared with other materials, the material is relatively soft, so there will be varying degrees of deformation during the die-cutting process. Whether it is sponge or foam, they are rarely used alone. They are usually used with one or more layers of glue.

   The properties of foam include compression ratio, thickness, density, hardness, color and other main characteristics. The compression ratio refers to the maximum amount of compression that can be achieved. For example, if the ratio is 95%, it can be understood that during the die-cutting process, it will be cut only after the whole is compressed to 95% of the overall thickness.

Commonly used foam materials for die cutting include: PORON, Saint-Gobain, EVA, EPDM, sound-absorbing foam, PU foam, etc.

   1. Situations encountered when cutting foam: deformation because the foam is very soft. When punching with a knife, the foam is flattened and then cut off. Because the knife mold has an inner and outer parts, punching when the internal pressure is greater than the external pressure will deform the punched cross section, and sometimes it will be concave or tilted. The correct cross-section after die-cutting is straight. If the cross section is not punched well, it will be bent.

  2. In order to flush out the foam and discharge the waste at the same time, our company is better at it, such as using the water cutting method or the two-knife cutting method. While other companies are unable to cut the product very straight and drain away the waste, in this caseHu YidaoIt can be done.

Problems with water cutting?

The cost is high, and the cost is twice that of die cutting; the production capacity is very low, and the production capacity is only one-tenth of that of die cutting.

Is there a problem with two-knife cutting?

   Generally speaking, the biggest problem of other companies is that the defective rate is very high, that is, the two swords may not be fully covered. However, if the two knives are aligned, the cross-section will be very beautiful, but the alignment is not accurate. If there is no need for concentric circles, it can be done with one knife, and the cut product will be very beautiful. The product's double-knife positions can cut anything above 3mm. It's the same foam, but if it's large, the internal and external pressure won't be much different. The product is also very beautiful when it comes out.

What should I do if the cut surface is not vertical?

The main reason is that when cutting with double knife positions, if the edge is relatively small, it will not be vertical. We have made a mechanism to make the punching without pressure. The knife retracts itself and the pressure is relieved. This makes the products produced more accurate.

[Hu Yidao] Can you solve the problems and advantages of foam die-cutting?

1. The blanking effect reaches more than 98%

2. It can achieve the effect of foam die cutting and waste absorption.

3. Realize automatic waste removal and save the cost of manual waste removal

4. The size of our waste discharge holes can control the waste discharge ratio to within plus or minus 0.01mm.

5. The flatness of the mold can be within 0.03mm and the die cutting is stable to avoid different depths during die cutting.

6. Hu Yidao guarantees the shipment of foam cutting and engraving molds by adding a proofing sample. And can be tested with molds according to the materials provided by customers. to find out if the material is suitable for die cutting. To meet customer requirements.

This plan is [Hu Yidao], official website:www.hydjmkj.com  Original release, please keep the statement if you need to reprint.