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.

        In order to ensure the cutting quality of paper and printed matter, the cutter needs to be maintained normally. The main points of daily maintenance of the cutter are as follows:
        1. According to different seasons, select the appropriate hydraulic oil. Use No. 20 oil in winter to maintain the fluidity of the paper cutter; No. 30 oil in summer to maintain the viscosity of the paper cutter.
        2. Maintain proper hydraulic pressure. If the pressure is too large, the seal ring will burst; if the pressure is too low, the blade cutting will appear sluggish.
        3. Coat the cutting platform and blade opening with talc or paraffin. In this way, one is to reduce the frictional resistance between the paper and the platform, and the operation is labor-saving; the other is to extend the cutting times of the blade, and to ensure that the cutting edge of the paper is smooth and neat.
        4. Fill with lubricant. Before working, add oil to the mechanical oil filling port to keep the machine lubricated and clean without noise, so that the paper cutter is always in a good working state.

        In recent years, with the improvement of China's culture, the demand for paper books and packaging has been increasing. This indirectly puts pressure on paper cutter manufacturers, but also brings unlimited business opportunities. The paper cutter equipment currently on the market is updated and changed daily, but in the sharp eyes of many consumers, there is no doubt that a shell has been changed, and the essence of the equipment has not changed. So how do you choose a safe paper cutter?
        Consult with some well-known paper cutter manufacturers, they told us that the current paper cutters on the market have been slowly transitioning to micro-programmed paper cutters from the beginning of mechanical and hydraulic types, and the ultimate goal is to be more human. The development of paper cutter equipment.
        Paper cutter manufacturers suggest that customers must make necessary assessments of their safety when purchasing such products, because paper cutters are different from other types of mechanical products and are often more dangerous when they are operated. of. The safety of the equipment is the first problem that needs to be solved for the user. Therefore, when purchasing, be sure to do some necessary checks on the safety of the equipment, such as: whether the paper cutter presser has an anti-fall device; moving parts Whether the place is equipped with a fully enclosed safety cover to prevent accidental breakage of parts and components to cause personal injury; whether there is an infrared electronic control system and an electronic safety knife lock in the cutter's travel to indicate the safety range.