Working principle of paper cutter:
        The operation of the paper cutter is relatively simple, and the requirements on the environment are not high. Usually in the general office, the power supply can be used to ensure power supply to work. Generally, the paper cutter has an automatic switch system. As long as the paper is inserted into the device, the cutter will cut automatically. Some paper cutters need to press the start button once, and the cutter will rotate to continue cutting. After cutting the paper, press the stop / reverse key to stop the cutter from rotating.
        Working principle of paper separator:
        1. The whole roll or the whole raw material is subjected to fixed-length cutting processing, such as plastic packaging materials, packaging cartons, steel plates, films, leather, wood chips, etc., and fixed-length cutting control is used.
        2. The cutting length can be set continuously. If there is an error in the actual cutting length, it is easy to calibrate by setting parameters.
        3. The slitting control of paper slitting machine is divided into static and dynamic slitting: when the set length is reached, it stops accurately, and then the static slitting is processed, and restarts after the slitting; when the set length is reached, it is not When the machine is stopped, the cutting signal is sent, and the cutting machine dynamically cuts and processes during the movement of the material.

        As one of the indispensable equipments for paper processing, the paper cutter is easy to use and must pay attention to the use of safe literature and art. Many operators often ignore safety when operating paper cutter equipment, resulting in unnecessary losses. So what are the factors that affect the safe use of paper cutter products?
        1. Brake device. In order to save money, many manufacturers use the principle of circuit braking, that is, cutting off the power supply of the cutter motor through the upper and lower limit sensors. This device may cause "slider" in the event of sudden power failure, loose sockets, and sensor failure Extremely dangerous situation. In order to prevent this from happening, it is necessary to use a motor assembly with a mechanical brake device, so that no matter what circuit failure occurs, the motor is locked to avoid accidents.
        2. Double button operation principle. This requires that both buttons are pressed at the same time, otherwise the cutter motor will not move, which can guarantee the absolute safety of single-person operation.
        3. In the actual use process, two people often cooperate to operate, so that the situation becomes very dangerous, which requires the cutter to be equipped with front and rear safety covers. When the safety cover is opened, the motor will not move to ensure safety.
        4. The above is a safety factor that affects the use process, so pay attention to the replacement of the blade during maintenance and maintenance, use the knife holder to ensure that the blade edge is closed, not only to ensure human safety, but also to ensure that the blade is not damaged.
        5. In addition, the removed blade must not be left at will to avoid hurting people.

        In the process of using the cutter, some problems will inevitably occur, such as inaccurate cutting accuracy and abnormal movement. Today we will talk about the reasons that cause the impact noise when the paper cutter is cutting.
        After using the paper cutter for a long time, sometimes the impact sound will increase obviously during cutting. Why is this? There are several common reasons:
        First, the needle bearing inside the left threaded rod is damaged;
        The second is that the two sliders of the knife holder are seriously worn, and the cooperation gap with the knife holder chute is increased;
        The third is the wear between the worm gear and the worm (mainly the wear of the worm gear).

        As the name suggests, a paper cutter is a mechanical device used to cut paper, and is generally used for pre-post processing in the printing industry. Common paper cutters can be divided into manual paper cutters, electric paper cutters and hydraulic paper cutters according to the driving mode. The manual paper cutter is the original paper cutter, also known as the cutting knife, the paper cutting width is not very large, only suitable for simple text cutting processing; and the electric paper cutter is based on the evolution of the manual paper cutter It is controlled by pure mechanical structure, the paper cutting is convenient and suitable for batch processing of documents; the hydraulic paper cutter after the internal structure contains hydraulic oil, through the operation of hydraulic oil to control the operation of the cutter.
        Among them, electric paper cutters often produce opaque cutting when processing some soft papers, which is not suitable for some industries that need to handle paper of multiple materials, and hydraulic paper cutters can cut rice paper, leather, paper and other materials Text, processing speed is fast and efficient, so it is widely used in libraries and printing presses.

        The causes of the upper knife and lower knife of the paper cutter:
        1. The pressure is not enough
        (1) The spring force of the mechanical compression spring is not enough. At this time, the pressure must be increased. If it is not possible to increase to the maximum position, the spring needs to be replaced.
        (2) Insufficient hydraulic pressure. That is, the hydraulic oil in the oil circuit or the oil pump is not enough, resulting in insufficient pressure. At this time, it is necessary to find out the cause and take the medicine.
        2. The gap between the tool holder and the slider is too large
        When the wear or improper adjustment causes the gap between the knife holder and the slider to be too large (generally 0.1mm), and the knife holder is unstable, it will cause the upper knife and the lower knife. At this time, the gap between the tool holder and the slider needs to be readjusted.
        3. Blunt knife
        When cutting, it is necessary to grasp the cutting amount, change the tool frequently, and use a fast knife. If the knife is too blunt, it will not only affect the quality of paper cutting, but also affect the accuracy and life of the machine, and in serious cases, mechanical accidents may occur.
        4. The angle of the blade is not adjusted correctly
        The angle of the blade should be determined according to the paper being cut. For thin, loose and soft paper, the angle of the blade should be small, generally 25-30 °; for thick, solid, hard paper, the angle of the blade should be large, generally 30-35 °. Otherwise, the phenomenon of upper knife and lower knife is likely to occur, and the blade passivation is accelerated.
        5. Blade reason
        Normally, the blade is parallel to the platform plane. When the blade is too high or too low, the phenomenon of upper knife and lower knife is also easy to occur. At this time, the blade needs to be adjusted to be parallel to the plane of the platform.