Mould weight fastening device and method for casting assembly line resin sand

Abstract

The invention discloses a mould weight fastening device and method for casting assembly line resin sand. The mould weight fastening device comprises cross beams, pressing plates, fixed blocks, sand boxes, casting bottom plates, movable box stops and bolt-stud fastening structures, wherein at least two groups of bolt-stud fastening structures are arranged on one side of each of the cross beams, thesand boxes and the casting bottom plates; the pressing plates can move along T-shaped grooves of the cross beams through the fixed blocks; the fixed blocks are fixedly connected with the pressing plates through fastening bolts; the pressing plates are directly pressed on casting cavities; air outlet sheets or risers of castings are avoided; and one end of each of studs takes the shape of a bent hook, and is tightly hung on a concave stop of the corresponding casting bottom plate. Through the cooperation of the cross beams with the movable pressing plates, the sand boxes and the casting bottomplates, the castings with the sand boxes are pressed by the bolt-stud fastening structures, the requirements of mould weights of different casting cavities of the assembly line are met, box lifting and deformation defects of the castings are effectively prevented, the quality and the production efficiency of the castings are improved, and the mould weight fastening device is simple in structure and convenient to operate, and has a satisfactory using effect.

Description

technical field [0001] The invention relates to the field of casting technology, in particular to a pressing iron fastening device and method for resin sand casting molds in an assembly line. Background technique [0002] In foundry production, in order to increase the rigidity of the mold and prevent the high-temperature molten metal from generating huge buoyancy during the pouring process, which will cause the casting to lift and deform, it is often necessary to place a certain weight of weight iron on the upper part of the mold to solve the problem. . In the actual production of the resin sand assembly line, due to the large area of ​​the sand box, the height is relatively short, and there is no box block, it is easy to cause the mold rigidity to be small, the deformation to be large, and the casting force to lift the box is large, and the casting is prone to box-lifting and deformation defects. And the weight of common pressed iron is little and can not reach the purpos...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the existing technical problems, and provide a pressing iron fastening device and method for resin sand casting molds in an assembly line. The column fastening structure compresses the mold with the sand box, which meets the needs of pressing iron for different casting molds in the assembly line, effectively prevents the casting from lifting and deformation defects, and has a satisfactory use effect

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