近年来,用塑料制作的机械零件正在日益广泛地被应用于机械制造中。由于结构上和使用上的需要,这些塑料制件的外表有时具有侧向横孔或环槽。为了一次模塑出这类制件,比较普遍的办法是在成型模具的结构中设置一套斜导柱抽芯或斜导柱侧向分型机构。在设计斜导柱抽芯机构或斜导柱侧向分型机构时,斜导柱的强度计算是其主要内容。鉴于各种原因, In recent years, mechanical parts made of plastic have been increasingly used in machine construction. Due to the structural and operational needs, the appearance of these plastic parts sometimes has lateral transverse holes or ring grooves. In order to mold such a piece of the more common approach is to set the mold in the mold structure of a set of inclined mandrel core or inclined column lateral parting mechanism. In the design of bevel guide core pulling mechanism or beveling guide column lateral parting mechanism, the strength of bevel guide column is the main content. For various reasons,