Analyze the pros and cons of not using the pad when cutting the automatic cutting machine

- Mar 21, 2019-

It is well known that when the cutting machine/feeder is cut, in order to effectively cut the material to prevent damage to the die, a non-metallic backing plate is placed in the direction of the knife edge. The purpose is to better cut the material, effectively protect the die to extend the die surface, and prevent the vibration caused by the impact of the machine metal directly on the metal from affecting the machine.


However, in recent years, many industries have higher and higher requirements for product quality. For example, the plastic products required for the electronics industry, the pharmaceutical industry, and foreign trade export have higher requirements for their product quality. The edges of the product are smooth and have no burrs. This also occurs when the cutting machine cuts the material directly using the die to cut the steel plate. The knife die directly cuts the steel plate to make the finished product work well, and the edge is smooth and free of burrs, which greatly improves the product quality.


However, in pursuit of product quality, it also puts more stringent conditions on the cutting machine. At present, most machines in the market do not meet the appeal requirements according to strict conditions. Why?


Let's take a look: the better precision of the cutting machine manufacturers will generally control the mechanical part of the machine within 0.1mm, the small manufacturers will exceed 0.2mm plus the hydraulic system reaction time and depth adjustment time relay reaction time difference, the actual accuracy Will be greater than the appeal value. If the requirements can be met, the repeating cutting precision of the machine should not exceed 0.05mm.


Then why are there still many manufacturers still using it, and can also cut it normally? In fact, you will find out that most manufacturers have padded a thick plank on the back of the die or the back of the cut steel plate. Compressibility, most of the machine's error is offset by the elasticity of the board, although there are still many, the knife is broken, often cut and wait for the situation, which greatly affects production efficiency.


Here to remind the majority of users:


1, do not choose time control, the choice of position control will get better cutting effect


2, the thickness of the back of the knife or the thickness of the board behind the cut steel plate


3, the steel plate through the star do not choose the normal stainless steel material that is too hard