Pattern drying device for sand mold casting

Abstract

The invention relates to a pattern drying device for sand mold casting. The pattern drying device comprises a drying frame used for bearing a pattern, a moving mechanism drives the drying frame to belocated in a drying room for drying operation, the drying frame comprises a bottom material receiving rod and material receiving rods on two sides, and the material receiving rods and the material receiving rods on two sides are wrapped with films correspondingly; the positions of the material receiving rods and the material receiving rods on two sides correspond to the position of a coating bracket; when the coating bracket moves to the position of the drying frame, the bottom material receiving rod and a lower supporting rod are staggered, the material receiving rods on two sides and the supporting rods on the two sides are staggered, and therefore the whole pattern can be transferred to the drying frame so as to complete transferring of the pattern. The bottom material receiving rod and the material receiving rods on two sides are wrapped with the films, the films make contact with the mold full of the coating, and therefore the problem that the coating on the surface of the moldis dry and incomplete due to the fact that the mold directly makes contact with the bottom material receiving rod and the material receiving rods on two sides can be effectively solved, the smooth surface of the mold is ensured, and the surface quality of a subsequent cast finished product is ensured.

Description

technical field [0001] The invention relates to the technical field of casting, in particular to a pattern drying device for sand casting. Background technique [0002] Sand casting is a common production method for general structural components. The patterns used are generally polymer materials. For example, after polystyrene foam is produced through a mold, it is necessary to apply a high-temperature resistant coating on the surface of the pattern and then dry it. Produce qualified patterns to ensure the quality of castings in subsequent actual casting. When implementing pattern production, it is necessary to use a spraying machine to carry out a full range of spraying operations on a single or a certain number of patterns, and after the spraying is completed, they are placed on the drying rack respectively, and then the rapid drying operation is performed. After the pattern is placed on the drying rack and dried, the pattern product can be obtained for subsequent casting...

AI Technical Summary

Problems solved by technology

When implementing pattern production, it is necessary to use a spraying machine to carry out a full range of spraying operations on a single or a certain number of patterns, and after the spraying is completed, they are placed on the drying rack respectively, and then the rapid drying operation is performed. After the pattern is placed on the drying rack and dried, the pattern product can be obtained for subsequent casting. When the above pattern is produced, it is difficult to achieve uniform coverage in actual spraying, and when the spraying is finished There is also a relatively serious hang phenomenon in the pattern. After being placed directly on the drying rack, the paint falls on the drying rack after the paint is placed on the drying rack. When the pattern is taken out of the drying rack, it will dry The paint is easy to get stuck on the drying rack, causing serious paint loss on the surface of the pattern, which has a great impact on the quality of subsequent casting products

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