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湖北省宜昌纺织机械厂铸造车间于1986年初改进成功了一套如下图所示的加新砂的自动装置。改进前加新砂控制开关靠人工操作,改进后则自动启动和停止。不仅节省劳力,更
Hubei Yichang Textile Machinery Factory foundry workshop in early 1986 to improve the success of a set of new sand as shown in the following automatic device. Improve the front plus new sand control switch by manual operation, improved after the start and stop automatically. Not only save labor, more