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我厂郑明山同志,在生产大跃进中,以勇猛的干劲,击破了几十年来的陈规,大胆创造了往回插刀架,经过实际试验,效果良好,提高了生产效率。插床和刨床的工作原理相同,都是借往回直线运动的冲力,来达到切削的目的。但它的缺点是每往回一次,只起一次切削作用,退刀时,在电力和时间上均白白消耗。郑明山同志创造的往回插刀架,就克服了这个缺点,现在把它的结构介绍如下:
In the Great Leap Forward of Production, Comrade Zheng Ming-Shan of our factory broke the rules of several decades with bravery and boldness and created the back-inserting knife frame boldly. After actual tests, the effect is good and the production efficiency is improved. Slotting machine and planer works the same, are borrowed back to the momentum of linear motion, to achieve the purpose of cutting. But its disadvantage is that once every time, only from a cutting effect, retraction, the power and time are in vain. Comrade Zheng Mingshan created a reciprocating insert frame to overcome this shortcoming, and now its structure is described as follows: