在没有专用翻箱设备情况下,对于大型砂型的翻箱是比较困难的。特别是带有吊砂的砂型翻箱更为困难,这时必须在具有台车的两垮间由两垮内的吊车配合来实现翻箱。但在这种情况下,砂箱吊轴如仍是传统的带挡头的“一”字型或“U”型吊环,不仅操作不便而 In the absence of a special case of equipment, for large sand box is more difficult. In particular, it is more difficult to have a sand-lit box with a sand gondola. In this case, two collapsing cranes must be collapsed between the two bikes with trolleys. However, in this case, if the sand box hanger shaft is still the traditional “one” type or “U” type hanging ring with a stop head, not only is the operation inconvenient