Slitting method of paper slitter

The paper slitter can generally be divided into three stages according to the operation process.
First of all, the rolled paper must be unrolled so that the single layer can pass through the slitting and rewinding equipment. As it passes through the machine, it is cut into strips of the desired width by one of a number of different cutting methods. Once the material is slit to the size required by the market, it can be rewound into finished salable rolls.
A variety of blade styles ensures that each paper is cut in the cleanest, most economical and efficient way, greatly reducing production costs and time. The actual cutting of the paper can be done in a number of different ways, mainly depending on the nature of the cutting material.
The oldest form of cutting is called die cutting, and it cuts material between a relatively blunt blade and the hard surface of a roller. This method is useful for cutting sticky-on-one-side dry adhesive products, such as various forms of washi tape. While this method is quick and easy to set up, it can cause problems with excess dust when used with paper.
The second easiest method of cutting is blade cutting. This is also the most economical method. It uses a positioning blade that normally hangs above the paper infeed area. As the paper passes through a series of rollers, the blade extends down into a space or groove in one of the rollers. This method cannot be used to cut heavy, thick or rigid paper materials.
In addition, in the high-speed cutting process, the friction between the blade and the paper will heat the blade, shorten the service life, and change the blade more frequently.
Shear cutting is the slitter's most precise method of slitting and can be used with heavier, thicker, stiffer paper materials. The main feature of shear slitting is the use of two upper and lower blades, usually rotating. When the material is pulled between the two blades, the two blades cut the material from top to bottom like scissors. The disadvantage of this method is that the adjustment and use of the blades are relatively complicated.