The New Technology of Akiyama Offset Printing--AKIYAMA BESTECH

2-3-2 arrangement of rollers

This is a very interesting design. Just like when Akiyama launched the Jprint-40SP (super perfect) model, Akiyama’s BESTECH presses used a very unique 2-3-2 drum arrangement. Look at the picture below:

The world's only technology capable of adjusting the printing plate using two plate correction structures

Akiyama's latest presses can adjust the printing plate using two different methods for calibrating the skew of the printing plate. One is a more popular technique. The printing plate is adjusted by changing the parallelism between the printing plate cylinder and the blanket cylinder. One is to calibrate the skewed plate directly by adjusting the parallelism of the plate clamps. Why does Akiyama use two calibration methods? According to Akiyama's introduction, the first advantage is that it can directly adjust the printing plate without stopping the machine, but the disadvantage is that the change in the parallelism of the rollers will directly lead to changes in the printing pressure and other related mechanisms. Therefore, the adjustment range is very small. They are only in the range of ±0.2mm; the other way to adjust the parallelism of the clamps is to mimic the manual operation and there is no problem mentioned above, so the adjustment range can reach ± ​​0.5mm, but due to the adjustment process needs to The clamp loose and tight process cannot be adjusted during the printing process. Therefore, according to different situations, the operator can choose a more appropriate operation mode to operate, that is, the selective use of two different regulation approaches complements the advantages and disadvantages of the two.

Roller teeth opening and closing technology using conjugated cam

The latest model of Akiyama made two transformations to the structure of traditional printing presses. One of them is Akiyama's unique patented technology. It is a drum occlusal opening and closing technology using conjugated cams. Those who have studied mechanics know that they use conjugate cams. The mechanism can cause the cam mechanism to cause a minimal impact on the oscillation of the pendulum. The purpose of Akiyama is also to minimize the collision of the dental pad during the closing process of the teeth, and the mechanism of smoothness improves the transfer process between the teeth. The destabilizing factors in the system have also been reduced. This is one of the most obvious reasons that Akiyama believes that the prints are scattered. At the same time, the benefits brought by the conjugate cam include the synchronization of the roller clenching.

New electronic dusting technology with protective airflow

The traditional dusting technology uses air flow to directly spray powder onto the print surface. However, due to the unstable air flow generated during the movement of printed materials, there are even uncontrolled air flows from the equipment itself such as fans and suction. In the process of dusting prints, only a few powders are actually attached to the surface of the prints, and more powder is scattered to the outside of the delivery section of the printing press or elsewhere. The use of a new dusting technology that protects the air flow has greatly improved this situation. More powder is protected by the protected air flow, which increases the chance of attachment to the paper surface. The technology has also been used on Akiyama's new equipment. According to Akiyama's introduction, this technology's dusting process will save 50% more dust than conventional techniques.

Ion fan type anti-static device

Traditional static eliminators need to be effective when the paper is guaranteed to be relatively flat. However, high-speed printers, especially in the delivery section, can hardly guarantee excessive paper handling, so the static elimination effect will not be satisfactory. Akiyama adopted a unique ion fan anti-static technology, which is a good way to overcome the difficulties of solving the paper service, so that the paper electrostatic problem can be well resolved.

Flexible drum shaft

When the roller shaft is bent by a slight curvature when the paper is creased, the middle paper is small and the two ends of the paper are large. When the next set of rollers is taken over, the bent shaft is straightened, and the paper is rinsed. Bending, it is said that the design of this mechanism can have a relatively large control over the dimensional stability of the paper printing process, and it can well avoid the appearance of the spread tail.

Automatic Compensation of Ink Curves

When a theoretically required ink area with a large amount of ink is adjacent to a theoretically required ink area with a small amount of ink demand, we find that the ink-path rolling shear and the ink viscosity and fluidity are common. Under the effect, it is virtually impossible to achieve. The actual ink route curve we get is smaller than the high zone we need, and the low zone is bigger. Through Komori's automatic compensation, we can make a pre-compensation for the flow of this ink interval, that is, the lower zone is lower and the higher zone is higher. In actual production, we can get a more ideal ink curve.

Ink drive clutch device

What should we do when a color group ceases to be used because it is not needed? The traditional way is to wash the ink roller cleanly, and then use the ink-changing oil to keep the wet state between the rollers in the process of booting, to avoid the phenomenon of dry grinding and overheating. This not only improves the labor intensity of the workers, but also us. Unnecessary power and unnecessary ink roller wear.

Unique phase change system

The traditional change-over process is due to the fact that the different printing plates of the multi-color machine have different relative angular positions on the machine, and the printing plates can only be replaced one by one. When Akiyama has used its unique in-phase technology, the change-over work can be carried out at the same time. Whether it is four-color or six-color, the entire process will only replace one printing plate. This has little room for improvement in the speed of printing, and it is a very valuable attempt to place greater emphasis on the shortening of the time required for the change of live work.

Unique dual pressure technology

In order to prevent the ink from being printed on the surface of the impression cylinder during the press-fitting process, two press-fitting techniques are used. This is known to every person who does offset printing, but the two compressors used by Akiyama's new machine are combined. In contrast, the technique of combining BI with PB is used first. The reason for Akiyama is to avoid the phenomenon of the bar caused by the mechanical vibration caused by the combination of BP and BI, and it is of great significance to reduce the scrap rate. However, we will continue to pay attention to the effect.