Spring core support

Abstract

The invention relates to a spring core support for fixing a sand core, and belongs to the technical field of casting. The spring core support comprises an upper supporting sheet, a lower supporting sheet, and a connector for connecting the upper supporting sheet and the lower supporting sheet, wherein the connector comprises an upper connecting rod and a lower connecting pipe; the lower connecting pipe is a metal pipe; the upper connecting rod is connected to the upper supporting sheet, and the lower connecting pipe is connected to the lower supporting sheet; the upper connecting rod is sleeved with the lower connecting pipe in a close fitting manner; a spring is arranged between the upper connecting rod and the lower connecting pipe; an assisting drawing wire is connected between the upper supporting sheet and the lower supporting sheet. The spring core support has the beneficial effects that the problems such as core breaking and core deviating of the product of such type can be solved, so that the rate of finished products can be increased; the product production efficiency is improved, and the production cost is reduced. Therefore, the market competitiveness of the product is improved.

Description

technical field [0001] The invention relates to a spring core support for fixing a sand core, which belongs to the technical field of casting. Background technique [0002] At present, it is a common practice to use special shaped supports, ie core supports, to assist sand cores in casting technology. The shape of the core support is various, such as flat, arc-shaped, U-shaped, etc., and the size and length are different. The core support should be selected according to the position of the core support in the casting, the shape of the cavity, and the wall thickness of the casting. shape, size. However, for complex cavity products with multiple cores, multiple compartments, broken chambers, and broken suspension cores, and products with strict requirements on wall thickness, size, and shape and position accuracy, it is necessary to design and manufacture many core supports with different shapes and sizes. The height of some core supports is very different, and the required ...

AI Technical Summary

Problems solved by technology

However, for complex cavity products with multiple cores, multiple compartments, broken chambers, and broken suspension cores, as well as products with strict requirements on wall thickness, size, and shape and position accuracy, it is necessary to design and manufacture many core supports with different shapes and sizes. Some core supports have great disparity in height, and each core support needs to be measured with mud balls to obtain the required height. The workload is quite large, and it has become a prominent weak link that affects the shape and the efficiency of core setting.

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