我厂原用于型砂输送系统中的整体锥形型砂中转储存砂斗,因经混制后的型(芯)砂具有一定的湿粘度,当型砂不断由带式输送机输入储砂斗时,有一个冲击力,加上型砂自重,一旦出料口关闭,体积存的型砂会发生层层压实,易于在下端出料口处产生压实区,再开启用砂时,将发生该区型砂起拱现象。此时必须用人工扒、锤打或撞击振动,才能出料。这不仅降低了砂斗使用寿命,增加操作人员的劳动强度,而且影响正常生产。针对上述存在问题,笔者参阅了有关资料,设计制成了“型砂 I plant originally used in the sand conveying system in the overall conical sand transfer storage sand bucket, because after the mixed type (core) sand has a certain degree of wet viscosity, sand as continuous from the belt conveyor into the sand storage bucket, There is an impact, plus sand self-weight, once the discharge port is closed, the volume of sand will occur layer compaction, easy to produce compaction area at the bottom of the discharge port, and then open the sand, the sand will occur in the area Arching phenomenon. At this point must be manually grilled, hammering or impact vibration in order to discharge. This not only reduces the service life of the sand bucket, increase the labor intensity of the operator, but also affect the normal production. In response to the above problems, I refer to the relevant information, design made of "sand