Reasons for partial collapse of corrugated boxes

In corrugated board packaging and printing, corrugated board collapse (- generally local collapse) has a great impact on the product packaging quality. This unqualified corrugated board can not only ensure the compressive strength and ring compressive strength of corrugated boxes, and the safety of storage and transportation of packaged products, but also affect the appearance quality of the whole product packaging. Here is a brief introduction to the causes of local corrugated box collapse.

1. The gap between the arc radius of the working surface of the guide claw and the outer diameter of the lower corrugating roller is too large. If the corrugating roller peak has been worn to reduce the outer diameter, or the outer diameter of the lower corrugating roller profile has been reduced after repeated grinding, if the original guide claw is still used, the gap will be too large.

2. The orientation of the guide claw device is improper, and the upper and lower gap between the arc radius of the working surface of the guide claw and the outer diameter of the lower corrugating roll is inconsistent. If the guide claw device is not in place, the gap between the upper or lower end of the guide claw and the lower corrugating roller is too large, and the pressure roller is too far away, so that the working surface does not play the function of paper guide.

3. The guide claw has been partially worn in use, and some working surfaces cannot guide the paper normally.