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在本刊第一期上看到了田学玉同志写的“改进双进距无飞边连续式冲模成功”一文以后,觉得有一些值得商讨的地方。这里重点地提出两个问题,是不是正确,希望同志们提出。一、卸料力量问题:这篇文章介绍的冲模结构是弹压卸料板式的,工件料厚5毫米,冲压以后废料跟着弹压卸料板紧紧地包在凸模上,只靠几只弹簧的力量把条料卸下来,预计这是有困难的。二、定位问题: 1)缺少首次定位。根据排样和工件的形状,开始冲切时料的损失是
In the first issue I saw Comrade Tian Xueyu’s article entitled “Improving the Success of Double-Indenting Flashless Continuous Die” and found some worth discussing. It is not right to raise two key questions here. I hope that the comrades will put forward this proposal. First, the discharge of strength issues: This article describes the die structure is elastic pressure stripper plate, the workpiece thickness of 5 mm, after the stamping press with the press plate tightly packed in the punch, only by a few spring The strength of the strip removed, it is estimated that this is difficult. Second, positioning problems: 1) the lack of first positioning. According to the layout and the shape of the workpiece, the beginning of punching material loss is