Analysis of the Reasons for the Roughness of the Cutting Edge of the Web Cutter

In die-cutting production, rough edges are one of the common faults. The causes can be summarized as follows:

       1. The cutting edge of the die cutter is deformed and dull

       Excessive die-cutting pressure, increased die-cutting times and the presence of sand particles on the semi-finished products can easily deform and dull the edge of the die-cutting knife, causing rough edges on the product. Therefore, the pressure at the edge of the die-cutting blade should be as small as possible, so as to cut off the scrap. In addition, the die cutter that has been deformed and dull should be replaced in time to ensure that the product is clean and clean.

       2. The sponge strip is too hard and too thick, causing the cutting edge of the die cutter to deform

       If the sponge strip is too hard or too thick, it will inevitably produce a large squeezing force on the cutting edge of the die-cutting blade when it is pressed, which may easily deform the cutting edge of the die-cutting blade and cause rough edges of the product. For this, you should choose a softer sponge strip and reduce the thickness of the sponge strip as appropriate.

       3. Repeated patching of die-cutting bottom plate

       It is a commonly used adjustment method in die cutting production to increase the pressure by using paper blocks on the die-cutting bottom plate, but the repeated patching of the paper blocks will cause the surface of the die-cutting bottom plate to be uneven, and the flatness is poor. Rough cut edges of the product.

       4. There are knife marks on the die-cutting bottom plate.