This is a technology that creates steam vents in the plastic cover material by forming it into any shape by drawing and shearing the sides at the same time, so scrap is not generated after press working. Since it can be used with existing press machines, no new capital investment is required.

A through hole is machined in plastic resin with a needle shape of a small diameter hole (0.5). Since it is not a sheared structure, no scrap is generated during processing, enabling stable production that does not depend on press accuracy.

Since the engraving blade that punches the contour shape of the product enters the punching groove along the contour shape of the product, it is possible to reliably punch the product without using a backing plate or carrier sheet. Since the tip of the engraving blade does not touch anything other than the product, it has the effect of reducing wear and damage to the cutting edge.

The plastic resin is cut with a machined engraving blade. The structure is simple and easy to unitize, enabling stable production that does not depend on press accuracy.

The simple punch punching die requires four special screws for setting the upper and lower dies, and can be used by attaching a special attachment made according to the pressing environment. Both the upper and lower molds are lightweight at about 1 kg and can be easily carried by women. The effective processing range is width 150 mm x depth 100 mm, and it will be shipped within the next two days at the longest after receiving an order.