1. The paper box of the computer cutter is full and needs to be cleaned in time. Cleaning steps: Turn off the paper cutter, hold the handle on the side of the machine, pick up the host and place it on the ground; pour out the paper scraps, and then put the host back on the carton.
        2. When the computer cutter is in operation, do not put your fingers in the paper door of the paper port to avoid danger.
        3. When operating the paper cutter, do not wear jewelry to avoid being caught in the machine.
        4. It is forbidden to put plastic, cloth and other materials other than paper into the machine to damage the machine.
        5. Do not stuff damp paper into the paper cutter to avoid rusting of the cutter.
        6. Do not load paper wider than the paper cut.
        7. Do not block the vents of the computer's paper cutter to prevent the machine from overheating and malfunctioning.
        8. Do not open the main body of the computer paper cutter at will, as some parts may hurt the human body.

        The paper cutter is a traditional product, and the dual hydraulic computer paper cutter is used to deal with the paper cutting needs at the later stage of printing. From the development of mechanical paper cutters to tape-controlled paper cutters, to the development of microcomputer program control, color display, full image operation guidance visual processing, and computer-aided cutting external programming and editing of production data, cutting system, making production preparation time Shorter, higher cutting accuracy, lower labor intensity, and safer operation. The double-rail digital display paper cutter is a paper cutter with high cutting performance, suitable for cutting labels, carbon paper, hardcover books, etc. Senmei manufactures high speed reel roll paper cutter with high precision.
        The touch screen operation mode can easily realize functions such as equal division, isometric, cycle size, calculator use and calculation result input program, and the operation is simple and intuitive (the key operation mode requires a combination of several keys when performing certain functions To achieve this, many customers consult the manufacturer for instructions after replacing the operator and unable to find the manual); there is a visual display of the status of the detection switch on each link of the machine on the screen, which provides great convenience for the removal of common faults , Saves time and money for customers and manufacturers who use paper cutters.
        The dual mode of buttons and touch screen can be used in combination, which can meet the old habits of some operators. At the same time, it provides one more input method, which has relatively improved durability, but the interface designed by the paper cutter manufacturer in the touch screen operation mode and When the operation menu is reasonable and the quality of the selected screen is stable and reliable, its significance is not very great.
        From the driving method of the paper pressing mechanism, it is divided into mechanical paper pressing and hydraulic paper pressing. The hydraulic paper pressing method can more accurately ensure the precision of the equal length tolerance of the cut material after cutting (commonly known as the accuracy of the upper and lower knife), especially when the cutting density is larger, the difference is particularly obvious. Therefore, with the advent of hydraulic paper-pressing paper cutters, mechanical paper-pressing paper cutters are no longer used by customers who require high cutting accuracy.
        The clutches of the paper pressing mechanism and the cutting mechanism are driven by hydraulic methods, and are also called full hydraulic or dual hydraulic paper cutting machines. Double rail quantity paper cutter full hydraulic or dual hydraulic paper cutter has greater cutting force, which has obvious advantages when cutting high-density cutting objects, the clutch is not easy to slip, and there is no need to adjust the clutch clearance frequently. Double rail digital display paper cutter
        From the size display mode and the positioning of the paper pusher, it is divided into a digital display paper cutter and a program-controlled paper cutter (a pure mechanical structure paper cutter is generally embedded with a steel ruler on the table, to control the paper pusher and digital display cutting Same as the paper machine).

        1. Safety brake device
         The installation of the brake device is very necessary. The safe use of the paper cutter is always the first priority, so the brake device of the safe paper cutter must not use the circuit brake device. The circuit brake device will cause the knife slip phenomenon in the case of power failure, which is very dangerous. Therefore, the brake device of the paper cutter must be mechanical. The advantage of the mechanical brake device is that the motor is locked after a circuit failure. This can better protect the safety of the operator.
        2. Configuration of safety cover
        The use of paper cutters is generally done in cooperation with multiple people, so we need to equip the paper cutter with a safety cover to prevent mistakes caused by multi-person operation and cause casualties. The function of the safety cover is that when the safety cover is opened, the motor of the cutter will not work.
        3. Double button control
        For the safety of the double button of the cutter, when we press a button, the cutter will not work. Only when the two buttons are pressed at the same time, the cutter will work. The two-button cutter control can better protect the personal safety of the operator.
        4. Precautions for maintenance of paper cutter
        Paper cutters require regular maintenance. Changing blades for paper cutters is a common thing, but changing blades is also a very dangerous thing. Use a knife holder when changing blades for a paper cutter. Make sure that the blade's edge is closed before operating.
        The replaced blade should be stored in a safe place to avoid hurting people.

        When using a hydraulic paper cutter, ensuring that the pressure of the paper press is sufficiently large and stable is an important factor to ensure the cutting quality of printed products and paper. The pressure of the paper presser comes from the impact of the hydraulic system. If the hydraulic pressure is too large or too small, it will affect the stability of the pressure. In order to ensure the cutting quality of printed products and paper, it is necessary to understand the failure of the hydraulic system and ensure the stability of the hydraulic system.
        1. Shock failure caused by oil
        ① When the air enters the system, local hydraulic shock will occur, vibration and noise will occur, and the pipeline will be damaged. Avoid contact between pressure oil and air, so ensure that all parts of the pipeline are well sealed, the oil return pipe should be inserted below the liquid level, and an exhaust device is added.
        ② Excessive oil temperature will also cause hydraulic shock. Therefore, it is necessary to control the oil temperature and change the oil with higher viscosity.
        2. Shock failure caused by the ventilation valve
        The switching of the solenoid valve is rapid, without buffering, so that the high pressure is switched to almost zero pressure or the zero pressure is quickly increased to high pressure, causing shock. The damping directional valve or the directional valve with adjustable replacement time can also be used, and the pressure tube can be added with a poppet valve.
        3. Shock failure caused by overflow valve
        When the system pressure exceeds the overflow value, the overflow valve will overflow, and under high pressure, transient hydraulic power will appear during opening and closing, causing shock. Pilot operated relief valve can be used.
        4. Shock failure caused by the oil cylinder
        The cylinder was suddenly braked, decelerated or stopped during the stroke, causing shock. A back pressure valve can be added on the return line.
        The hydraulic system of the hydraulic paper cutter has a variety of failures. Here are just a few common failures. The failure of the hydraulic system is also related to its own structure and system design. Therefore, when the hydraulic system of the hydraulic paper cutter fails, it is necessary to gradually eliminate the system according to the actual situation, reduce the damage of hydraulic shock, and improve the performance of the hydraulic paper cutter.

        After removing the circuit board and conducting visual inspection, it was found that the substrate around the power bridge pile was discolored, it was concluded that the bridge pile was burnt out, and the bridge pile was powered on and the test was carried out. Measured with a multimeter, the newly replaced bridge pile has also been burned out, thus judging that there is a short circuit part. Checking the components one by one from the bridge stack, it was found that a three-terminal voltage stabilizer block (7805) was broken down, the component was purchased to replace, and the power indicator on the circuit board turned on after powering up.
        The operator installs the circuit board on the machine, and operates according to the normal procedure to check whether the photoelectric protection function is working, covering the optical eye with his hand, and the falling knife stops immediately. After several attempts, it is normal. The fault is eliminated.