Views: 1 Author: Site Editor Publish Time: 2020-06-17 Origin: Site
In the slitting process, it can be roughly divided into three methods: flat knife slitting, round knife slitting, and extrusion slitting.
Flat knife slitting
Just like a razor, a single-sided blade or a double-sided blade is fixed on a fixed knife holder, and the knife is dropped during the operation of the data, so that the knife cuts the material longitudinally to achieve the purpose of slitting.
There are two methods for razor slitting:
One is slitting and slitting; the other is dangling slitting.
Groove slitting is when the material is running on the sipe roller, the cutter is dropped in the groove of the sipe roller, and the data is cut longitudinally. At this moment, the data has a certain wrap angle in the sipe roller, and it is not easy to drift. When slitting the cast PP film or the film with narrow edge material, this slitting method is commonly used to increase the slitting power. But with regard to dangling slitting, its shortcoming is the inconvenience of knife comparison.
Hanging slitting is when the data passes between the two rollers, the razor falls and cuts the data longitudinally. At this moment, the data is in a relatively unstable state, so the slitting accuracy is slightly worse than the die slitting, but this method of slitting Convenient tool setting and convenient operation.
Flat cutter cutting is mainly suitable for cutting very thin plastic films and composite films.