Machines used for handling flexible sheets of paper may easily undergo jams due to the existence of irregular conditional sheets. However, most of the studies on handling behaviours have only been done for general sheets of paper transported with some simple guides. Establishing an efficient calculation method and analysis system that can predict all kinds of sheets whether or not there is jam in transport guides becomes more and more important. In this article, based on an analysis of the transport of a head-folded sheet in a V-type guide both in the experiment and finite-element (FE) simulation, the method of building the database of FE models for conditional sheets is established. A simulation system that directly connects the computeraided design tools and the established database is also developed. Some simulated examples of sheet handling behaviours are demonstrated. It is shown that the developed system is useful for designing any transport guide.
This paper describes an efficient page-turning mechanism for automated teller machines (ATMs). Conventional page-turning mechanisms are more complicated than the new mechanism that we have developed. The validity of the concept was confirmed using a newly-developed simulator the new mechanism. The mechanism concept is that a friction roller with a hollow elastic structure absorbs considerable structure deformation and produces optimal page turning force as a result. The simulation results we obtained demonstrated that the concept was good enough to provide an efficient page-turning mechanisms, and consequently designed a prototype of the mechanism and conducted experiments on it. The experimental results showed that the new page-turning mechanism is three times as fast as and has one twenty-fifth the failure rate of a conventional page-turning mechanism.
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