What is the reason why the pressure plate of the paper cutter does not return to position:
        1. Electrical failure, 2 ~ 3 stroke switches are usually arranged behind the cutter drive mechanism (turbine box, gear transmission, etc.), one is mainly used after the cutter passes the lowest point, when the hands leave the button, the cutter will Automatically return to the highest point (also used for the cutter counting function); the other one is used for the highest point stop model. When the position of the travel switch and the bumper is incorrect, the cutter will not stop at the highest point (in this case only Need to adjust the position of the bumper or the travel switch to remove the fault.
        2. The brake failure of the paper cutter is definitely equipped with a brake device at the input end of the cutter transmission device (turbine box, gear transmission, etc.). When the brake pad is worn or the gap is too large, the cutter cannot stop at the highest point (adjust the gap or It can be solved by replacing the brake pads), or the clutch disc is stuck, which makes the return position inflexible (disassembly of the brake parts, cleaning and refueling can be solved).
        3. The hydraulic failure of the paper cutter, when the new machine leaves the factory, the hydraulic piston does not return to the lowest point. After a period of use, the piston returns to the lowest point after the surface is worn in, causing the position of the paper presser to be too high (generally the blade is lower than the pressure Paper machine bottom), the easiest way to deal with this is that most manufacturers will set a top cover on the piston head, we only need to thicken the top cover to solve. The approximate parameter is that when the top cover is thickened by 1mm, the paper presser is lowered by about 1.4mm.

        How to operate the paper cutter is safe? Today I will explain to you in detail.
        1. Before using the paper cutter, check the machine and do a good job of cleaning. Fill each oil hole with lubricating oil.
        2. After the paper cutter is turned on, first check whether the photoelectric protection switch is normal and reliable, and then try the empty knife three times to observe whether there is a return knife. If a problem is found, it should be eliminated in time.
        3. When the machine is running, it is strictly forbidden to put your hand into the machine. If there is a fault, it is strictly forbidden to grab the paper by hand. It should be stopped immediately. When the cutter does not return to a stable position, it is forbidden to reach for the paper to prevent hand injury or accident.
        4. Super-high operation is strictly prohibited when cutting or cutting the product. After checking the correct size, the knife can be lowered. When the blade is blunt, the blade should be replaced immediately. Do not use it intermittently to avoid damage to the machine due to excessive load.
        5. When adjusting and replacing the cutter, you must stop the machine and use the clamp bolt to change the cutter. After installation, you must manually swing up and down to confirm the correctness, and then adjust the depth line of the cutting knife. You should first adjust the cutting knife higher, and then carefully adjust the depth of the delicious ruler from shallow to deep, and then tighten the safety screw to use.
        6. Equipment maintenance: the butter hole guide rails and other activities should be filled with butter at least once every half a month. The dirt on the surface of the machine must be wiped every day and the air debris and dust (including electrical boxes, motors, etc.) must be wiped off to clean up the garbage on the job. Keep equipment and posts clean.
        To achieve the above points, I believe that in the process of using the paper cutter, it can be more safe and reliable, and extend the service life of the paper cutter.

        Whether the cutter of the cutter is sharp and how long it is used greatly affects the production efficiency of the cutter. The life and effect of the tool depends on the following factors,
        1. Materials for making props.
        2. Factors such as the shape and angle of the sharpening stone (sharpening wheel), the quality of the sharpening blade, and the type of material being cut.
        For the raw material of the cutting head, the material of the cutting edge should be chromium tungsten manganese steel with relatively high hardness, and the cutting body can be made of low carbon steel. If it is a high-quality blade, it can reach a certain hardness after fire extraction.
        In terms of the shape and angle of the sharpening blade, if the sharpening angle of the cutting blade is relatively small, its blade will be sharper. Therefore, as long as the tool material allows, the angle of sharpening should be as small as possible.
        The quality of the sharpening knife depends mainly on the skill level of the operator. If the quality you feel is relatively high, the longer it can be used.

        The safety of the paper cutter is a problem that many digital printing practitioners tend to overlook, and it affects the safe use of the paper cutter in the following ways:
        1. Braking 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 the two buttons to be 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 the safety of people, but also to ensure that the blade is not damaged.
        5. Furthermore, the removed blades must not be left at will to avoid hurting people.

        1. The flat sheet cutter is divided into electric cutters in terms of the driving mechanism of the paper pushing mechanism (only the button can be pressed manually or the corresponding mechanism can be operated to control the motor or mechanical transmission mechanism to realize the pusher Positioning), program-controlled paper cutter (automatic positioning of the paper pusher through the program control system, and also the positioning method of the electric paper cutter) and an intelligent digital display paper cutter between two ways (through The control system automatically roughly positions, and then realizes accurate positioning through manual fine-tuning).
        2. The program-controlled paper cutter is divided into three ways: stepper motor control, frequency conversion speed control, and AC servo control from the control method of the paper pusher movement.
        The stepping motor control and frequency conversion speed control method can achieve ± 0.1mm in the positioning accuracy of the paper cutter pusher, and the speed can reach 8-14 meters / minute (the specific accuracy and speed are due to the manufacturer ’s use The control system and the selected electrical components will be quite different), but the noise of the stepper motor control mode is harsh when it is started, and it is not optimistic about many paper cutter manufacturers and paper cutter users.
        The AC servo control method has a great qualitative and quantitative breakthrough in the positioning accuracy and speed of the paper cutter pusher than the frequency conversion speed control. The positioning accuracy can reach ± ​​0.025- ± 0.015mm, and the paper pushing speed can reach 16-20 M / min (the accuracy and speed achieved will vary greatly depending on the control system used by the manufacturer and the electrical components selected).
        3. From the operation interface (operation mode) of the program-controlled paper cutter, it can be divided into three types: button type, touch screen, button and touch screen dual mode.
        The key-operated program-controlled paper cutter first appeared, which doubled the efficiency of the digital display cutter, improved the work efficiency for many users, created more wealth, and was favored by customers. This method can not be compared with the touch screen operation method in the intuitive and simple operation.
        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.
         4. From the driving mode 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. Full hydraulic or dual hydraulic paper cutters have a greater cutting force, which has obvious advantages when cutting high-density cut objects. The clutch is not easy to slip and there is no need to adjust the clutch clearance frequently.
        5. 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. The same as the paper cutter).
        The main difference between the digital display paper cutter and the program-controlled paper cutter is the control of the paper pushing mechanism. The program-controlled paper cutter not only greatly improves the efficiency, but also effectively reduces the labor intensity of the operator.
        6. From the width of the sheet width (maximum cutting width) of the flat sheet cutter, it is divided into a half-cut cutter (also called a half-open cutter), a full-open cutter (full-sheet cutter) and many more.