What kind of slitting methods does the slitting machine have? I believe that many of my partners are relatively unfamiliar with this issue, so JINYI will tell you in detail below.
Slitting machine structure composition
The slitting machine consists of an unwinding mechanism, a cutting mechanism, a winding mechanism, various functional rollers, and a tension control rectification control and detection device.
The working principle of the slitting machine
The working principle of the slitting machine is as follows: the metallized film raw materials released from the unwinding mechanism are passed through the flattening roller, the tension detection roller, the enabling roller, and the deviation correction system, and then enter the cutting mechanism. After the raw materials are slit, they are collected by the winding mechanism. Roll into standard rolls.
Slitting machine cutting method
The slitting machine can be roughly divided into three ways in the slitting process: flat knife slitting, circular knife slitting, and extrusion slitting.
1 slitting machine 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 running of the material, so that the knife cuts the material longitudinally to achieve the purpose of slitting.
There are two ways of razor slitting:
One is grooving and slitting; the other is suspended slitting.
Grooving and slitting is when the material is running on the grooved roller, drop the cutter in the groove of the grooved roller, and cut the material longitudinally. At this time, the material has a certain wrap angle on the grooved roller, and it is not easy to drift. This kind of slitting method is often used when slitting cast PP films or films with narrow margins, which can improve the slitting efficiency. But for suspended slitting, its disadvantage is that it is more inconvenient to set the knife.
Suspended slitting is that when the material passes between the two rollers, the razor.
The flat cutter is mainly suitable for cutting very thin plastic films and composite films.
2 slitting machine round knife slitting
Circular knife slitting can be divided into tangential slitting and non-tangent slitting.
The tangential slitting is that the material is cut from the tangential direction of the upper and lower disc knives. This kind of slitting is more convenient for knives. The upper and lower disc knives can be adjusted directly according to the requirements of the slitting width. Its disadvantage is that the material is easy to drift at the slitting point, so the accuracy is not high, and it is generally not used now.
Non-tangential slitting means that the material and the lower disc knife have a certain wrapping angle, and the lower disc knife falls to cut the material. This cutting method can make the material less prone to drift, and the cutting precision is high. However, it is not very convenient to adjust the knife. When installing the lower disc knife, the entire shaft must be removed. Circular knife slitting is suitable for slitting thicker composite films and papers.
3 slitting machine extrusion slitting
Extrusion slitting is not common in domestic slitting machines. It is mainly composed of a bottom roller that is synchronized with the material speed and has a certain angle with the material and a pneumatic knife that is easy to adjust. This cutting method can not only cut relatively thin plastic films, but also relatively thick paper, non-woven fabrics, etc. It is a more convenient way of cutting. It is a development direction of the cutting method of the slitting machine.
This process of slitting should be taken seriously and must not be taken lightly. This paper summarizes the purpose and technological process of slitting, so that the majority of composite film manufacturers can solve a series of quality problems in the future slitting production to ensure the stable quality of composite film slitting.
For the slitting process of the slitting machine, you can carry out the slitting method of your own products according to your own requirements. I hope you can understand the three slitting methods of the slitting machine through the introduction of this article.
Well, the above is all about the slitting machine today. If you want to get more industry information, please pay attention to JINYI .See you in the next issue.
Post time: May-10-2022