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中压或高压造型机的采用,大大提高了铸件的尺寸精度和表面光洁度。但是,由于造型机比压的提高,砂型紧实度也提高了,给落砂工序带来不少困难,砂块不易被破碎。另外,随着现代高效率造型机的采用,同时对落砂机的效率提出了更高的要求。我厂气动微震压实造型生产线投产后,由于造型机比压和生产率有所提高,落砂机就越来越成为造型线出口处的“咽喉”要道,经常出现由于“咽喉”堵塞,
Medium or high pressure molding machine used, greatly improving the dimensional accuracy of castings and surface finish. However, due to the increased pressure of the molding machine, the compactness of the sand is also increased, which brings many difficulties to the sand removing process. The sand block is not easily broken. In addition, with the use of modern high-efficiency molding machines, at the same time the efficiency of the falling machines set higher requirements. After the pneumatic microseismic compaction molding production line of our factory was put into production, due to the higher specific pressure and productivity of the molding machine, the falling sand machine has become the “throat” artefact at the exit of the modeling line more and more,