A sand box turning mechanism

Abstract

The invention relates to a sand box overturning mechanism. The sand box comprises an upper box and a lower box, wherein lifting lugs are arranged at two end parts of the sand box, the overturning mechanism comprises a pair of overturning plates, a pair of overturning shafts, a movable connection rod, a fixed connection rod, a support frame and a lifting appliance lifting lug, the pair of overturning plates are installed on the lifting lugs of the sand box, the pair of overturning plates are connected with one ends of the pair of corresponding overturning shafts, the other end of one overturning shaft is connected with the fixed connection rod which is fixedly connected with the support frame, the other end of the other overturning shaft is connected with the movable connection rod which is movably hinged with the support frame, and the lifting appliance lifting lug is arranged on the support frame. According to the invention, by combining the overturning shafts and the overturning plates, the sand box can be overturned conveniently and effortlessly, and meanwhile, the sand box overturning mechanism provided by the invention is simple in structure and easy to operate.

Description

technical field [0001] The invention relates to a device used in the foundry industry, in particular to a sand box turning mechanism with simple structure and convenient operation. Background technique [0002] Now as the product structure becomes more and more complex, customers' requirements for product quality are also constantly improving. In the foundry industry, when making large-scale and high-end products, it is usually necessary to turn over the sand box, that is, after the upper and lower molds are combined, due to technological reasons, the upper and lower boxes need to be turned over 180° before pouring; or after pouring Finally, before opening the box, it is necessary to turn the upper and lower boxes 180°, and then open the box and drop the casting. No matter which kind of flipping, it is required to be stable during the flipping process, otherwise the sand mold will be damaged or the casting will fall off. Therefore, the flipping after the boxing has the foll...

AI Technical Summary

Problems solved by technology

No matter which kind of flipping, it is required to be stable during the flipping process, otherwise the sand mold will be damaged or the casting will fall off. Therefore, the flipping after the boxing has the following problems: First, the upper and lower sandboxes not only contain the The weight of the sand box itself, the weight of the molding sand and even the casting, that is, the turning weight is heavy; the second is that after the box is combined, the upper and lower sand boxes have lifting lugs respectively, but there is no common lifting lug, that is, there is no turning shaft. There is no guarantee that flipping will be done smoothly

Although some turning mechanisms have appeared, these mechanisms are bulky, complex in structure, very difficult to operate, and sometimes cause personal injury to people and bring inconvenience to people's work

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