Sand casting and demolding device for pump body of self-priming pump

Abstract

The invention relates to the technical field of sand casting equipment, in particular to a sand casting and demolding device for a pump body of a self-priming pump. The sand casting and demolding device comprises a sand falling groove, an upper sand box and a lower sand box. The lower sand box is filled with a sand material fully, the sand material is spread evenly, then a lower bottom plate is taken out and fixed to the lower sand box, at the moment, rotating motors drive rotating supporting shafts to rotate, and therefore the lower sand box is integrally overturned, the lower bottom plate islocated below the lower sand box, and the lower sand box and the lower bottom plate are driven by lifting motors to move downwards until a fixed base is aligned with a fixed attached plate. The uppersand box and the lower sand box are driven to coincide and align, the upper sand box is filled with the sand material, and then a mold frame is taken out. After the mold frame is taken out, an uppertop plate and the upper sand box are driven to move downwards again, a casting cavity is formed for pouring and casting, and a cast part is taken out after being formed. The lower sand box resets, thelower bottom plate is taken down, the sand material is pounded out of the upper sand box and the lower sand box through sand pounding rods to fall onto filter screens, and the sand material falls into the sand falling groove to be recycled after being filtered.

Description

technical field [0001] The invention relates to the technical field of sand casting equipment, in particular to a sand casting demoulding device for a pump body of a self-priming pump. Background technique [0002] The self-priming pump is a self-priming centrifugal pump, which has the advantages of compact structure, convenient operation, stable operation, easy maintenance, high efficiency, long life, and strong self-priming ability. There is no need to install a bottom valve in the pipeline, and it is only necessary to ensure that there is a quantitative suction liquid stored in the pump body before work. Sand casting is a casting method for producing castings. Steel, iron and most non-ferrous alloy castings can be obtained by sand casting. Because the molding materials used in sand casting are cheap and easy to obtain, and the casting mold is easy to manufacture, it can be adapted to the single-piece production, batch production and mass production of self-priming pump b...

AI Technical Summary

Problems solved by technology

[0003] The existing sand casting demoulding process is usually done manually, the operation is complicated, and the accuracy cannot be guaranteed, and the existing sandbox casting is often performed manually after sand casting, because the molding sand needs to be removed before pouring. Compaction, which in turn increases the difficulty of cleaning up the staff and increases the workload

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