2-3-2 arrangement of rollers
This is an interesting design. Just like when Akiyama launched the Jprint-40SP (super perfect) model, this series of Akiyama BESTECH printing machines used a unique 2-3-2 cylinder arrangement, please Look at the picture below:
The only technology in the world that can adjust the printing plate using two printing plate correction structures
Qiushan's latest printing machine can calibrate the printing plate skew mechanism by two different methods to adjust the printing plate. One is a more popular technology, which adjusts the printing plate by changing the parallelism between the printing plate cylinder and the blanket cylinder. One is to calibrate the skewed printing plate directly by adjusting the parallelism of the printing plate holder. Why does Qiushan use two correction methods? According to Qiushan'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 cylinder will directly cause the change of the printing pressure and other related mechanisms, so the adjustment range is very small Are only within the range of ± 0.2mm; another kind of adjustment through the parallelism of the plate clamp imitates the manual operation without the problems mentioned above, so the adjustment range can reach ± ​​0.5mm, but due to the adjustment process The process of loosening and tightening the plate clamp cannot be adjusted during the printing process. Therefore, according to the analysis of different situations, the operator can choose a more appropriate operation mode to operate, that is to say, the selective use between two different adjustment paths complements the advantages and disadvantages of the two.
Opening and closing technology of roller teeth with conjugate cam
Qiushan ’s latest model has made two changes to the structure of traditional printing presses. One of them is Qiushan ’s unique patented technology, which is the roller teeth opening and closing technology that uses conjugate cams. Everyone who has learned machinery knows: The mechanism can make the cam mechanism have a minimum impact on the swing of the swing lever. The purpose of Qiushan is also to minimize the impact on the dental pad during the closing of the teeth. Through the mechanism, the stability of the mechanism is improved, so the handover process between the teeth The instability factors in the system are also reduced, which is one of the most significant reasons that Akiyama believes causes print tailing. At the same time, the benefits of the conjugate cam also include the synchronization of the opening and closing of the roller teeth.
New electronic powder spraying technology to protect airflow
The traditional powder-spraying technology uses airflow to directly spray the powder onto the surface of the printed matter, but due to the unstable airflow generated during the movement of the printed matter, there are even turbulent airflows from the equipment itself such as fans, suction, etc. In the process of powdering printed matter, only a few powders actually adhere to the surface of the printed matter, and more powder is dispersed outside the paper receiving part of the printing machine or elsewhere with the turbulent airflow. The new powder spraying technology that protects the airflow has greatly improved the situation, and more powder is protected by the protection airflow, thereby increasing the chance of adhesion to the paper surface. The technology has also been used in Qiushan's new equipment. According to Qiushan, the powder spraying process using this technology will save 50% of powder spraying compared to traditional technology.
Ion fan type anti-static device
The traditional static eliminator is only effective if the paper is guaranteed to be relatively flat. However, it is difficult for the high-speed printing machine to ensure that the paper is excessively flat, especially in the receiving part, so the static elimination effect will also be unsatisfactory. , Qiushan uses a unique ion fan anti-static technology, which bypasses the difficulty of solving paper plain clothes well, so that the problem of paper static electricity can be solved well.
Flexible roller shaft
When gripping the paper, the roller axis bends a slight arc, which results in a small grip paper in the middle and a large grip paper at both ends. When the next group of rollers is handed over, the curved tooth shaft becomes straight, so that the paper is gripped Straight, it is said that this mechanism design can have a relatively large control on the shape stability during the paper printing process, which can well avoid the occurrence of loose tails.
Automatic compensation of ink path curve
When an ink area that requires a large amount of ink in theory and an ink area that requires a small amount of ink in theory are adjacent to each other, we find that the rolling shear of the ink path and the ink viscosity and fluidity are common. Under the influence, it is actually impossible to achieve, the actual ink curve we get is smaller than the high area and low area we need. Through Komori's automatic compensation, we can make a pre-compensation for the flow of this ink range, 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
What should we do when a colored group is stopped because it is not needed? The traditional way is to wash the ink roller clean, and then use the ink to keep the wet state between the ink rollers during the startup process to avoid the phenomenon of dry grinding and overheating. This not only increases the labor intensity of the workers, but also we Unnecessary power and unnecessary ink roller wear were paid.
Unique in-phase version change system
In the traditional plate-changing process, due to the different angular positions of different printing plates on the machine of the multi-color machine, the printing plate can only be replaced one by one. And when Qiushan adopts its own unique in-phase technology, the plate-changing work can be carried out at the same time. Whether it is four-color or six-color, the whole process will only be the time to replace one printing plate. This is a very valuable attempt for today, with little room for improvement in printing speed and more emphasis on the shortening of the reworking time.
Unique two-time pressure technology
In the process of offset printing, in order to avoid the ink printing on the surface of the impression cylinder, the technique of double pressing is used. This is known to everyone who makes offset, but the double pressing used by the new machine of Qiushan But it is different. The technology of combining BI first and then PB is used. The reason of Qiushan is to avoid the bar phenomenon caused by the mechanical vibration caused by combining BP first and then BI, which has very important exploration significance for reducing the scrap rate. However, we will continue to pay attention to the effect.
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