The function of the paper conveying part is to forward the paper on the paper stack one by one to the printing unit. Therefore, the stable, accurate and continuous paper conveying is an important condition for ensuring the quality of the print. Since the printed paper often changes, the paper feeding part must be adjusted according to the specific paper, so this part is also the place where the operator adjusts the most. In order to ensure the normal operation of the paper conveying section under various circumstances, an operator must have a high theoretical level and rich practical experience.
There are many adjustment parts for paper feeding. How should these parts be adjusted?
In the past, many operators have gradually explored and summarized their experiences through practice or teacher teaching. How to do it One is that sometimes I only know how to do it, but I do n’t know why; second, someone else did it wrong and I do n’t know it; third, I wasted a lot of time.
So are there any shortcuts? The answer is yes. Although there are many adjustable parts in the paper conveying part, if you have mastered the standard working conditions of each part and its internal motion rules, you have a basis for machine adjustment and troubleshooting, which can greatly improve work efficiency. The paper conveying part is composed of four parts: paper feeding table, feeder, paper conveying board and rules. On the machines we have seen so far, although these parts are readily available, the difference between each part is quite large among different machines, mainly to meet the requirements of high-speed printing. As shown in Figure 1.1, this is a schematic diagram of the more popular paper transport part. The more prominent point on this figure is that both the front gauge and the paper-feeding teeth are swayed. This structure can increase the positioning time of the paper at the ruled part, so the speed of the machine can be increased under the same positioning time. From the perspective of development trends, the functions of the paper transport part are becoming more and more complete, but the structure is becoming simpler and easier to use. Although the differences between different parts of the different machines are relatively large, they are inseparable. As long as you master the adjustment method of one model, it will not be too difficult to operate other models, so the key is to master The ideal working state of each part and the mutual relationship between them.
(Figure 1.1)
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