Each time a new blade is installed, or the old blade after sharpening, the height of the knife bed should be manually adjusted to adjust the cutting amount of the blade, to avoid the accident caused by deep cutting caused by the larger height of the new blade. When cutting the knife, the main motor must be turned off, and only after stopping the operation!
The adjustment steps are:
① Make sure that the cutter is in the tool change state, first stop the main motor, press the main motor stop button, confirm that the main motor is at rest, and then put the cutting switch selection switch in the middle tool change position.
②Determine the cutting depth of the blade: Use a socket wrench to turn the nut on the end of the pulley to move the cutter bed to the lowest point, and observe whether the cutting depth of the blade is reasonable (normal cutting 0.5-1 mm).
If the blade is in contact with only one end of the blade, it can be solved by adjusting the eccentric shaft behind the main frame.
If the blade is worn and cannot cut the paper, the blade should be moved down in the direction of the long hole until the paper can be completely cut.
The top knife cam can only be fine-tuned. If the adjustment range is too large, the knife hanging device must be braked off, otherwise the knife hanging device will be damaged.
What do you know about the cutter? Do you know how the speed control of the cutter works?
In the summary of the distributed transmission of the paper cutter, since the speed between adjacent transmission points should be kept at a certain ratio, and in the process of vehicle speed adjustment, it should be satisfied that only the transmission points at this level and after this level are affected, without affecting The speed of the previous transmissions, so that each transmission point can be adjusted on the basis of the previous level and transmit the speed signal to a chain structure formed by the next episode, which is the speed chain.
Generally speaking, the speed chain can be divided into two types: one is analog speed chain, and the other is digital speed chain. The speed chain structure of the paper cutter is a multi-branch structure with a main chain.
The paper cutter is a device used to cut paper. Today we will talk about what to pay attention to in the maintenance and inspection of the paper cutter.
During the cutting process, if the cutter encounters a hard cutting object or the cutter is too blunt and the cutting is too large, an overload situation occurs. In order to prevent damage to the machine, the safety bolt on the protection device will be pulled off at this time. The cutter bed stops falling and plays a protective role.
In the maintenance and inspection of the paper cutter, pay attention to check the tightening and matching status of the overload safety screw bolt and the screw nut and the thread condition of the nut. Don't ignore the point, that is, the bolt is replaced after the bolt is broken, and the nut is still used.
As a result, if the thread of the nut is worn, the tightening fit of the bolt and the nut is likely to be loosened, and if the fit is not found in time or the nut is not tightened or replaced in time, then the work in the loose state is easier to make the bolt Broken, obviously, such a broken can not truly reflect the insurance load that the screw can carry, thus causing undesirable failure losses. Therefore, in normal operation, the operator should pay attention to this part of the inspection.
The blade of the paper cutter sometimes deforms, so what causes it?
It is best to put it in the middle, because the bending machine is the two cylinders acting on the slider at the same time, so that the slider is balanced and pressed down, so that the sheet is bent, and other upper molds do not need to be removed. The deformation of your mold blade may be:
① The upper mold has been used for too long, and it has been worn hard;
② The gap between the upper and lower molds is too small, the upper and lower molds kill each other, the gap should be slightly larger than the thickness of the bent plate;
③ The balance of the two cylinders is slightly worse, which affects the life of the mold;
④ The mold is not installed carefully, the method is wrong;
⑤ The material of the mold is general. In short, the deformed mold can no longer be used reluctantly, especially for the machine tool. Don't lose it because of the small one.
The choice of the sharpening angle of the blade of the paper cutter, the quality of the sharpening, and the time of the sharpening of the blade affect the flatness and smoothness of the cutting edge of the paper. The angle of the general blade is 19 °. If the cut paper is hard , You need to increase the angle of the blade. If you want to improve the quality of the blade, you must ensure that the coolant is sufficient to avoid the edge annealing. Before cutting, you can use a whetstone to grind the blade carefully and apply it to the blade. Soap and paraffin, not only can improve the sharpness and smoothness of the cutting edge, but also extend the life of the cutting edge, and the quality of the finished product is better.
The reason why the chip collapse occurs in actual operation is because the operator shortens the sharpening time and the coolant is insufficient, causing the edge of the blade to anneal and the width is narrowed. The nut must be adjusted during installation to make the blade cut into the pad If the blade is not adjusted well and the cutting depth is too deep, it will cause chipping.