Corrugated rolls affect board quality in six ways

Corrugated rolls affect board quality in six ways

Corrugator belt is important for corrugated paperboard production line.Corrugated roll quality will directly affect the cost of corrugated board production. Generally, the corrugated rollers are inspected from time to time. So, what aspects of corrugated cardboard will these inspection points affect? Let's explore it below.

1, corrugated roller flute distance

The flute distance refers to the distance between the ends of two flutes, and some people use the corrugation number within a certain distance to calculate. Generally, the larger the corrugation distance is, the worse it is for printing, but the corrugation ratio of corrugation is relatively low, which can reduce the amount of corrugated paper, but it has an impact on the side pressure of corrugated cardboard.

2、Corrugated roller corrugated height

Corrugated height refers to the distance between the valleys between the two corrugated peaks. Generally, the higher the corrugated height is, the stronger the side pressure of the cardboard is, and the more corrugated paper is, that is, the higher the thickness of the cardboard, but the flat pressure of the cardboard is relatively low. The rollers are also relatively easy to wear.

3, corrugated sticks

In order to make the corrugating roller press the core paper and the inner paper evenly and parallelly during the operation, the lower corrugating roller generally has a certain medium and high height. Some of the pressure rollers are medium or high, and this is set according to the characteristics of the equipment. The so-called medium and high, that is, the diameter of the middle part of the corrugating roll is larger than the diameter of the two ends of the corrugating roll, generally between 30-60 filaments. As for the amount of medium and high, it depends on the diameter, width and material of the roll.

4, the corrugated roller diameter

The larger the diameter of the corrugated rod, the better the rigidity, the lower the middle and high, the more steam can be stored in the roller, the smaller the vibration, the easier it is to operate. The disadvantage is that the contact surface of the core paper is large, resulting in a large tension of the core paper.

5, corrugated roller bite gap

When the upper and lower corrugating rolls are engaged, if the engagement gap of the corrugated wall is too small, it will cause the corrugated core paper to rupture and affect the strength of the corrugation; if the engagement gap is too large, the resonance of the corrugating roll will increase.

6.Corrugation rate

After the corrugation is formed, the length after the corrugation is straightened is compared with the unstretched length. Generally, the higher the corrugation rate, the more paper is used. If the same material is used, the greater the side pressure strength, the lower the flat pressure strength.