From a normal perspective, after a long period of use, the paper cutting machine may basically leak oil. Although the paper cutting machine can work normally when there is an oil leakage fault, the oil leakage from the paper cutting machine will increase the fuel consumption. Large, causing waste.
         The maintenance of oil leakage of the paper cutter needs to replace the skeleton oil seals and resin oil seals of several other parts, such as valves. After the replacement, the oil leakage problem can be solved. However, after the replacement of many users, the oil leakage phenomenon of the paper cutter still exists and did not achieve the expected solution. This is mainly because the quality of the replacement seals is not up to standard. It is because the storage time is too long, which causes deterioration and aging. Therefore, the replacement of these seals can easily cause the paper cutter to leak again, which affects the sealing effect of the paper cutter. Therefore, the quality of the sealing ring should be paid attention to when replacing its sealing ring, so as to prevent the problem of oil leakage from appearing repeatedly.

Program-controlled paper cutting machine is one of the necessary equipment of printing plants, and its role is to process paper cutting before and after printing. With the development of science and technology, the function of the paper cutter is more and more, the operation is more and more simple, the labor intensity is reduced, the cutting accuracy is very high, and it is safer. In the process of use, the following problems often occur. Below, taking the digital display paper cutter as an example, a simple analysis of the reasons why the digital display paper cutter's safety screw is easy to break.
1. The cutting edge of the blade is not sharp enough.
2. The sliders on the left and right sides of the knife seat are worn.
3. Do not tighten the safety screw often.
4. The mounting direction of the safety screw is wrong.
5. The two end faces connecting the safety screw are not flat because of deformation.
6. The blade cuts too deep into the blade or the blade is not flat.
In addition to the above reasons, there are also electrical reasons. In case of paper cutter failure, it should be resolved in time to avoid delaying normal production work.

1.The current blade can be used on all sides;
2.When the blade is found to be seriously worn, it needs to be adjusted or replaced;
3.Rewind the cutter to the highest point and stop;
4.Pull off the front cover and loosen the hex socket bolt on the clamp plate, you can adjust or replace the blade;
5. The blade should lean to the left, re-tighten the hexagon socket bolts on the clamp plate, and push into the cover.

         The maintenance of the paper cutter is the key to how long it can last. According to surveys, the average life of machines that are often maintained is several years longer than those that are not maintained. Therefore, it is important to maintain the cutter. The following is the daily maintenance method of the paper cutter.
         1. Properly maintain the hydraulic pressure. If the pressure is too high, the seal will burst, and if it is too small, the hysteresis will be weak.
         2. First, according to the different seasons, choose a suitable hydraulic oil machine, such as No. 20 oil in winter to maintain its fluidity; No. 30 oil in summer to maintain its viscosity.
         3It is necessary to use talcum powder or paraffin wax to coat the paper cutting platform and blade mouth. There are two advantages in doing so. 1. Reduce the frictional resistance between the paper and the platform. .
         4. In order to add lubricating oil in a timely manner, it is necessary to add lubricating oil to the mechanical oil filling port before work to keep the machine lubricated and clean, so that the machine is in good working condition.

         Paper cutters can be divided into three categories: manual cutters, electric cutters and hydraulic cutters; manual cutters do not require much explanation, and can also be called cutting knives. The cutting paper is not very large. Suitable for simple text cutting processing; while electric paper cutter is controlled by pure mechanical structure, the cutting of paper is convenient, suitable for batch processing of documents. Another type of hydraulic paper cutting machine, the internal structure contains hydraulic oil, the operation of the hydraulic oil to control the operation of the cutter.
         Electric paper cutters, when cutting some paper called soft paper, may not be cut through, which is not suitable for some industries that need to process a variety of paper materials. The hydraulic paper cutter can cut text from various materials such as rice paper, leather, paper, etc .; the processing speed is fast. Therefore, it is widely used in libraries and print publishing.