A kind of casting box pressing box buckle

Abstract

The invention provides a casting mold assembling box pressing fastener which comprises a trough type fastener and a screw rod, wherein a cantilever beam is arranged at the upper end of the trough type fastener, and a hook part is arranged at the lower end of the trough type fastener; a screw hole I is longitudinally formed in the cantilever beam; the screw rod penetrates through the screw hole I and is meshed with the cantilever beam; a clamping sleeve is arranged on the upper part of the screw rod in a sleeving manner; a through hole I is transversely formed in the clamping sleeve; an operating handle transversely penetrates through the through hole I; and a pressing part is arranged on the lower part of the screw rod and comprises a special nut, a round nut, a ball and a pressure head screw. According to the casting mold assembling box pressing fastener, wear of two iron mold guide rail surfaces or two sand box surfaces caused by the rotating process of the screw rod and thermal wear of the screw rod thread and nut thread can be relieved, so that the service life of an iron mold or a sand box or a box pressing tool is prolonged, and the labor intensity of workers is alleviated.

Description

technical field [0001] The invention relates to the field of iron mold-coated sand molding and box molding, in particular to a casting box-pressing buckle. Background technique [0002] Iron mold coated sand casting and box molding are commonly used casting processes in the foundry industry. When combining the upper iron mold and the lower iron mold or the upper sand box and the lower sand box, it is necessary Types are pressed and fixed together, and the commonly used method of pressing and fixing is the screw rotary pressure box type, which directly exerts pressure on the guide rails of the upper iron type and the lower iron type guide rails or the upper and lower sand box surfaces by several screws. , so that the upper iron mold and the lower iron mold, the upper sand box and the lower sand box can be combined and fixed. [0003] This method of plane-to-plane contact rotation is likely to cause the screw to wear on the surface of the two iron guide rails or the two sand ...

AI Technical Summary

Problems solved by technology

[0003] This method of plane-to-plane contact and rotation is likely to cause the wear of the two iron guide rail surfaces or the two sand box surfaces during the rotation of the screw. Once the damage is serious, the maintenance cost of the iron mold or the sand box will be high; at the same time, at high temperature In the environment, the heat of these two iron types is directly transferred to the screw, which causes the strength of the screw thread and the nut thread to decrease, and the heat wear is serious, which is easy to cause scrap, the service life of the screw and nut is short, and the maintenance is frequent

In addition, workers who use this method have a large labor intensity during the operation process, resulting in low work efficiency, uneven pressing force on the iron mold and the sand box, and unreliable pressing positioning.

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