The paper discusses the shedding motion of the frame about opening angle different from shutting angle, applying common shedding regular patterns, studies three combining curve equations suited to technological requirements of shed by means of choosing different opening angle, and gives the feature analysis and comparison each other.
本文利用综框常用的运动规律， 推导出适宜开口工艺要求的三种开口角与闭口角不等的组合曲线方程， 探讨了开口角不等的踏盘开口综框运动规律， 并对各运动规律作了特性分析和比
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