Single machine because of the advantages of flexible operation, convenient use, low price and small area by small carton business today. However, some enterprises use one side machine to produce corrugated cardboard time is short, the production equipment is more complex, in the production process often occurs such as the problem, this not only affects the quality of products, but also waste a lot of raw materials, the correct grasp of the single machine, to guide the carton production, improve carton quality has a very important significance. The following is the common quality problem in precision single machine in the production process and the solution to discuss with my colleagues.

A large area of batch glue

The adhesive coating line of corrugated peak on white, hand graze the starch particles fall off, this is not fully the performance of adhesive paste. The reason is that the temperature of the hot roller does not meet the requirements, and can not reach the pasting temperature of the adhesive. If it is found that the adhesive coating line of micro shiny didn't stick, because the adhesive does not match the speed and speed and viscosity of adhesives.

When the tightness of paper, the permeability is not strong, the adhesive surface adsorption capacity and penetration is not strong, it is easy to occur in these cases. The solution is to improve the adhesive, enhance its penetration ability, or to the adhesive surface of the paper spray, slow down the speed, increase the paper preheating surface. Adhesive coating amount is too small will affect the bonding, inspection can be used iodine liquid coating adhesive coating, according to the extent of the blue to determine its coating, adjust the paste, increase the amount of adhesive coating.

Two, one or a plurality of longitudinal glue

The reason of this problem is the main line of the gap between the plastic guide board does not meet the requirements. The solution is to adjust the gap. When the guide plate and the lower corrugating gap is too large, not close to the corrugated tile roller, resulting in corrugated and pressure roller pressure in paper, corrugated squashed. The guide plate and the corrugated roll gap was large, in order to apply glue coating roller will move forward, to guide lower board bending, resulting in lower tip surface of corrugated cardboard left a book mark, the adhesive. When the gap is too small, have influence on the amount of glue, the corrugated paper and corrugated adhesion.

Three, the paper wrinkling and collapse

Because of transportation, loading and unloading, storage and other reasons, the web is not round. The paper conveying to the single machine, when the tight loose, causing facial wrinkling and collapse. The solution is to moderate the brake. Another is the paper moisture content is not uniform, resulting in expansion rate of paper in the paper, wrinkling and collapse, which can only be solved by the business people carton enterprises in purchasing.

Four, half a piece of adhesive bonding good half adhesive

The cause of this problem is that the gap between the pressure roller and the corrugated roll should be between 0.3 and 0.4mm. The normal installation of the machine at the end of the gap between the two is less likely, but the possibility of a larger pressure is not the same, it should first adjust the pressure.

Five, Leng fall

A common cause of partial inverted tooth corrugated corrugated roll location not single machine, and should adjust the upper and lower corrugating roller.

With the corresponding mark six, corrugated paper

A slight mark is a normal phenomenon, when the pressure roller pressure is too large will be affected by mechanical tissue destruction, there is deep impression, even at the edge of a slight fracture, seriously affecting the quality of corrugated cardboard, reduces the strength of carton. The solution is to adjust the pressure of the pressure roller, pay attention to the combination of speed, the thickness of paper, paper and other factors.

Seven, the edge of glue

The reasons are as follows:

1 board is high and the speed is too fast;

Low water containing 2 carton paper;

3 pressure roller adjustment is not reasonable;

4 adhesive, viscosity is not enough;

5 the adhesive coating is too large, causing the paper edge off;

6 edge guide board adjustment is unreasonable.

Eight, broken cord

The main reason is that the corrugated roller is not parallel and insufficient, should adjust the corrugated roller.

Nine, the level of Leng

The reason has the corrugated roller, the pressure roller surface pollution, wear or not parallel; corrugated paper board pressure is not uniform, corrugated roll temperature is not enough; corrugated roller pressure bearing wear; the guide board bracket is not parallel.

Solution: for all the above reasons, the corresponding adjustment equipment, replacement parts.