The new blade of the paper cutter or the blade that is not more than 20mm sharpened, hang the two holes of the blade on the upper knife pin when using the knife, and use the second row of holes to fix it with the knife bed.
When the blade is sharpened more than 20mm, use the first row of holes to fix it with the tool bed, and at the same time, fix the spare parts: two pads between the tool bed and the blade, and use M6 screws to fix it. Use 20mm pads on both sides. Also check that the pad must be below the sliding surface of the knife bed.
Between each 20mm, adjust the adjustment nut of the drawbar of the cutter bed and adjust the height of the cutter blade to meet the requirements.
During the use of the blade, in order to make the machine work more flexible, you can often apply paraffin or talc powder to the blade edge. Since talc powder and paraffin can reduce the friction between the two contacting objects and can make the cutting smoother, this can be extended. The service life of the blade edge.
The blade is the main part of the cutting, and its sharpening angle and sharpness have a great influence on the cutting accuracy. For different varieties and different materials, the sharpening angle is different. In general, when cutting hard paper, to overcome the larger cutting resistance, the blade sharpening angle should be larger (between 22 and 25 °), if a blade with a smaller blade angle is used for cutting at this time Hard paper, because of the thin blade of the blade, cannot overcome the cutting resistance of larger paper, deform the blade, and cause insufficient cutting at the lower part, which affects the cutting quality. Generally, when cutting soft or thin paper, the angle of the blade should be between 16-21 °.
The sharpness of the blade edge is also a factor that affects the cutting accuracy. According to the difference between the cut product and the working time, the number of grinding times of the blades is different. Generally, the continuously cut blades need to be replaced with new sharpened blades within 2-3 hours. In specific use, you should determine a reasonable number of blade sharpening times according to your own cut products.
If the unsharp blade is still in use, it will cause damage to the machine (such as the safety bolt is easy to break), shortening the life of the machine.
In the paper processing industry, we know that it has a lot of influence on the quality of paper cutting. One of the more important is that the pressure of the hydraulic paper cutter will also affect the quality of the paper.
Especially when the hydraulic paper cutter is in operation, its pressure must not change at will, otherwise it will affect the cutting quality of the paper product. Why does the pressure of the hydraulic paper cutter affect the paper products?
This is mainly because the transmission power of the hydraulic equipment of the hydraulic paper cutter is relatively large. Wide range of speed regulation, excellent balance performance, high degree of automation, easy operation and many other advantages, so it is used by the majority of paper processing manufacturers. When using this kind of equipment, if the pressure is set incorrectly, it will affect the paper product. For example, excessive pressure will cause the paper product to compress and deform, and the pressure will be too small to reduce the cutting accuracy. Therefore, when using the hydraulic paper cutter, the pressure of the equipment must be adjusted reasonably.
Of course, there are a variety of paper cutters capable of pressure control on the market. Compared with manual adjustment, the pressure accuracy of the program-controlled hydraulic paper cutter is more accurate. This is also one of the mainstream products in the paper processing industry equipment market.
The ordinary hydraulic paper cutter will not slip if the oil pipe is not leaking. There are three cases of electric:
First, with an electromagnetic clutch, when the knife holder returns to the top, the clutch will pull in, ejecting the mechanical arm with a hook, locking the knife holder (hanging, a mechanical mechanism) to prevent the knife holder from falling off. If this is the case, check the clutch action and mechanical mechanism here to see if there is a problem.
Second, the lower knife motor itself has a brake (brake). At the rear of the motor, this situation should be the brake (brake) is not working. Check whether the brake of the motor is defective, and then make a judgment to see if it needs to be replaced?
Third, the mechanism without knife lock and without brake, completely rely on the photoelectric sensor or limit switch to control the position of the tool holder stop, so the stop position will not be very accurate. Once the sensor fails, either the machine will not move, or it will be The non-stop movement is quite dangerous.
In the process of using the computer paper cutter, sometimes "cutting knife" failure occurs, which seriously affects the normal work of the paper cutter. If you want to fundamentally eliminate this failure, you must start with improving the structure of the cutting system of the computer cutter. This is not something that ordinary users can do. For ordinary users, you want to eliminate or reduce " The occurrence of "cutting knife" failure should pay attention to the following aspects:
1. Sharpen the blade in time to keep the blade sharp. In addition, when not necessary, try not to use blades with large corners, which can effectively reduce the paper's resistance to cutting.
2. Pay attention to the change of the slideway clearance. When the phenomenon of "cutting out" tends to be obvious, the change of the slideway clearance should be checked first. Under normal circumstances, the gap should not exceed 0.1 mm. The sliding surface bears a large load during the cutting process, coupled with poor lubrication conditions, and is constantly worn during use, which causes the gap to increase, resulting in a "cutting knife" failure. When it is confirmed that the gap exceeds the allowable value, it should be adjusted in time.
3. Careful maintenance to ensure good lubrication of the slide surface.
As the name implies, a hydraulic paper cutter is a paper cutter with a hydraulic device inside. It can cut very thick documents. It is mainly composed of a host, a workbench, a paper pushing mechanism and cutting. The hydraulic paper cutter can accurately ensure the consistency of the length and width after cutting, and has controllability.
What is the difference between a hydraulic paper cutter and an electric paper cutter? There is hydraulic oil inside the hydraulic paper cutter, which is operated by a hydraulic device. When cutting soft paper, sometimes it will be opaque and not suitable for cutting small batches of documents. The hydraulic paper cutter can cut a variety of materials such as leather, rice paper, kraft paper, etc. The speed is very fast, suitable for use in libraries and publishing houses.
The electric paper cutter is purely mechanically controlled, and the paper cutting is convenient for text cutting in small batches.
When using a hydraulic paper cutter, you should pay attention to the ground wire. You should always add oil to the bottom of the paper push bar. Regularly check the gap between the screw nut and the paper pusher. Check the encoder and hydraulic oil regularly. Please follow the instructions The requirements of adding hydraulic oil.