Sand box trolley and casting production method

Abstract

The invention discloses a foundry production tool, particularly relates to a sand box trolley, and provides a sand box trolley which facilitates conveying and fixing of sand molds. The sand box trolley comprises a box body, rollers and sand mold fixing diagonal bars, wherein the rollers are mounted on the bottom of the box body to drive the box body to move; the sand mold fixing diagonal bars are arranged on at least one pair of opposite inner side walls of the box body; and a surface, which faces the inside of the box body, of each sand box fixing diagonal bar is an inclined plane which is gradually inclined from top to bottom. Tapered slots in the sand molds and the sand mold fixing diagonal bars in the sand box trolley are fastened in a matched wedging manner, a process of mounting fasteners on empty sand molds is avoided, and the labor intensity of workers is greatly reduced; and meanwhile, the sand molds can be pushed and mounted into the sand box trolley by automatic equipment, influence of artificial operation factors is small, and stability and reliability of a sand mold fastening process are guaranteed effectively.

Description

technical field [0001] The invention relates to a casting production tool, in particular to a sand box trolley. In addition, the invention also relates to a casting production method. Background technique [0002] At present, China is the largest casting production country in the world. In 2010, the total output of castings in my country has reached 39.6 million tons, with an output value of more than 400 billion, and more than 80% of them are made of sand casting, which still dominates the production of castings. status. In order to ensure the production quality of castings and improve the qualification rate of castings, the upper and lower sand molds are often fastened by installing fasteners and casings before the sand molds are poured, so as to prevent the sand molds from being unstable and causing safety problems such as fire and sand molds. During the pouring process, the sand mold expands and deforms due to heat, which leads to the cracking of the sand mold. [0003...

AI Technical Summary

Problems solved by technology

[0005] However, this prior art only guarantees the fastening reliability of the sand mold, and the fastening of the sand mold and the sand falling action of the casting still need to be done manually by workers, and the labor intensity of the workers has not been effectively reduced; secondly, the sand mold of the prior art The box cannot be applied to the production of castings of different sizes, and it is still necessary to design a special sand box according to the different sizes of the castings, so the production flexibility is low; finally, the sand box in the prior art does not have a moving structure, and the handling and movement of the sand box Difficult, so the automatic production of castings has not been realized

[0006] With the vigorous rise of the modern foundry industry, the production tempo has also been greatly improved, and the requirements for production efficiency, manpower consumption, and labor intensity are getting higher and higher. The above-mentioned traditional casting production methods can no longer adapt to the current development situation.

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