If the corrugated cardboard is squashed, it will seriously affect the pressure change of the cardboard, and also directly affect the compression resistance of the empty carton. There are many reasons for the flattening of cardboard, which are analyzed and solved one by one below.
why
1. Corrugated roller is not parallel (corrugated tilt);
2. Corrugated height is low, or corrugated roller wear;
3. After forming corrugated, it is flattened;
4. The tension on the core paper roll is too large;
5. Because the spray device spray too much steam, the core paper is too wet;
6. The gluing device causes corrugating at any bite point;
7. The tension of the upper and lower conveyor belt of the double-sided machine is uneven (oblique corrugated);
8. Flat, flattened corrugated;
9. The pressure resistance value of core paper is too low.
measures
1. Adjust corrugated roller to parallel;
2. Replace corrugated roller;
3. Check, adjust or repair all the occluding points that may lead to flattening corrugation, such as the cross-cutting knife lead roll, press roll or hot plate pressure system is not parallel or improperly adjusted, or the pressure applied is too large, the single-side paper on the overpass has tension, lifting conveyor belt problems;
4. Reduce the braking of the base paper holder; Check the location of the preprocessor;
5. Reduce the amount of steam sprayed on the core paper;
6. Reduce the glue gap between single-sided cardboard and face paper;
7. Keep the speed of the conveyor belt consistent;
8. Check the factors that cause corrugating flattening after corrugating is formed, and check the reasons for corrugating tilt;
9. Replace core paper roll and discuss with base paper supplier.
Post time: Dec-11-2022