Cardboard Technology: How Corrugated Card Single-Sided Machines Work

1. The working principle of corrugated cardboard single-sided machine.

The general structure of a corrugated cardboard single-side machine consists of a paper guide roller, a preheating roller, upper and lower corrugating rollers, a pressure roller, a pressurizing cylinder, a preheating roll 1, a preheating roll 2, and a forming composite device, and includes a coating roll and a uniform roll. Rubber roller, pulp tray, etc.

Corrugated paper is tensioned by a paper guide roller, the preheat roll controls the humidity, slides over the upper corrugating roll dome into the corrugated channel between the heated upper and lower corrugating rolls, and is pressed at the meshing point on the centerline of the two rolls After hot forming, close to the center of the lower corrugated roller roll running to the center of the coating roller and the lower corrugated roll, the rubber roll is scraped off by the glue roll to form a uniform film on the surface of the coating roller pair Corrugated paper is evenly coated with glue at the top.

After the sizing, the corrugated paper continues to run with the lower corrugating roller, and the glue between the corrugating roller and the pressure roller center is heated and gradually pastes. After the two preheating rollers control humidity, the corrugated paper reaches the pressure roller and is heated. Pressure compound drying, thereby producing a variety of 楞-type two-layer corrugated cardboard.

The above process includes a complete process of preheating, ironing, sizing, gelatinization, and compound drying of two-layer corrugated cardboard. One of the key process conditions is that the corrugated paper after ironing must be tightly attached to the lower corrugated roller roll to accurately complete the sizing of the top part of the corrugated paper and compound it with the paper.

Any displacement of the corrugated paper after ironing on the lower corrugating roller will cause the formed corrugated sheet to be deformed, so that degumming, high and low blemishes, fleas, paper breaks, fungus edges, and falling defects are caused.