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The roller feeding mechanism of stamping press is widely used in the automatic feeding mechanism of progressive stamping, but it is rarely explored in the academia. It is difficult to have further reform and innovative design. Therefore, this thesis hopes to provide a reference for future scholars and stamping industry study related to roller feeding mechanism. The objectives of thesis include analyzing the structure of a kind of existing roller feeding mechanism, providing innovative roller feeding mechanism and exploring the relationship between the eccentric distance and progressive pitch. This study calculates the degree of freedom of the mechanism and judges whether it is con-strained motion, and then designs the mechanism as well as analyzes it by the CAD software. Finally, the relationship between eccentric distance and progressive pitch are sorted out by the results of analysis. According to judgment by observation on the ex-isting roller feeding mechanism, this preliminary judgment is a Spatial mechanism of six-bar linkage and six-revolute. It is an over-constrained mechanism in theory, but the result is just the opposite of the existing roller feeding mechanism can operate in reality. Therefore, it still necessitates clarifying the structure of the existing roller feeding mechanism. Furthermore, by calculating the degrees of freedom and kinematic analysis, the innovative roller feeding mechanism is substantiated to satisfy the constrained mo-tion, and results of kinematic analysis display that as the eccentric distance increases, the progressive pitch will increase. The relation between eccentric distance and progressive pitch provided in this study enables one to determine the optional progressive pitch by varying the eccentric distance of the present mechanism.
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