Double-sided machine - the gap between the top roller and the platen roller is too large

Double-sided machine - the distance between the rubber roller and the platen roller is too large. The paste shape in the following picture may seem to be a problem with the level of the corrugated fiber. In fact, it is not true, but the paste is uneven on each corrugated sheet, but the amount of glue is large. Paste line is not firm after bonding. Because the gap between the top roller and the platen roller is too large, the paper web cannot come into uniform contact with the top roller. The end result is a lack of adhesive strength of the paperboard and a very low side pressure strength and carton compressive strength.