| Summary: | 碩士 === 大葉大學 === 機械工程研究所碩士班 === 95 === According to flexible packaging industries speedily developed nowadays, the rotogravure printing technology goes for higher and higher level continuously. The printing quality influences the commercial market directly. The doctor blade is the key component of printing machines, since it touches the printing cylinder directly and removes the extra ink to imprint the printing cylinder figure on the printed film. Hence, the doctor blade structure and design are the most important in printing machines. This research subject is mainly for modifying doctor blade to find a stable structure and quick-exchangeable design for printing machines.
This research is focused on current doctor blade problems, through the wide study of new technologies and collecting some invention patents to find the best solution. This research will probe into the problem and create a new mechanism to solve all the weak points. The TRIZ theory will offer a good tool to find the solution, according to TRIZ contradiction table together with mechanical principles. Finally, modify and optimize the whole unit of doctor blade. All the design should avoid to encroach on other patents. We will put this research on the rotogravure printing press in working condition, continuous testing and rechecking all the ideas. Finally, we will take all kinds of examination to get a very good new structure. The effective solution will be found to solve all the weak points of the doctor blade unit, the research will be able to offer all the printing machine manufacturers to adopt it.
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