1. Flat knife slitting is like a razor, fixing the single-sided blade or double-sided blade on a fixed knife holder, and dropping the knife during the material running, so that the knife cuts the material longitudinally to achieve the purpose of slitting .
2. Grooving and slitting means that when the material is running on the grooved wheel, the material is cut longitudinally. At this time, the material has a certain wrap angle on the grooved wheel, which is not easy to drift. When slitting the cast PP film or the film with a narrow side material, this slitting method is often used to improve the slitting efficiency. But for suspended slitting, its disadvantage is that it is inconvenient to set the knife.
3. Suspension slitting means that when the material passes between the two wheels, the razor falls to cut the material longitudinally. At this time, the material is in a relatively unstable state, so the slitting accuracy is slightly lower than that of the round knife slitting.
4. Round knife slitting is divided into tangential slitting and non-tangential slitting.
5. Tangent cutting is to cut the material from the tangential direction of the upper and lower disc knives. This kind of slitting is more convenient. The upper disc knife and the lower disc knife can be adjusted directly according to the cutting width requirements. . Its disadvantage is that the material is easy to drift during slitting, so the accuracy is not high, and it is generally not used now.
6. Non-tangential slitting means that the material and the lower disc knife have a certain wrap angle, and the lower disc knife falls to cut the material. This cutting method can make the material not easy to drift, and the cutting precision is high. But it is not very convenient to adjust the knife. When installing the lower disc knife, the whole shaft must be removed. The circular knife slits relatively thick composite films and papers.
7. Extrusion slitting is not common on domestic slitting machines. It is mainly composed of a pneumatic knife that is synchronized with the speed of the material and has a certain angle with the material and a pneumatic knife that is easy to adjust. This cutting method can not only cut thinner plastic films, but also cut thicker paper, non-woven fabrics, etc. It is a more convenient slitting method and a development direction of the slitting machine method.
Post time: Dec-16-2022
