Drying box for precision casting

Abstract

The invention discloses a drying box for precision casting. The drying box structurally comprises an equipment main body, a controller, a sealing door, a drying cavity, a shape protection device, a driving motor and an exhaust pipe. The drying box has the beneficial effects that a flow restraining structure is utilized, so that the redirection effect on air flow generated in the drying cavity is facilitated, and under cooperation of change of wind energy, the circumstances that the surface of a mold deforms due to pouring and blowing of strong wind energy, and consequently the size data of themold are not accurate are avoided; a bottom protection mechanism is utilized, so that acting force dispersion cooperation when the bottom of the mold is placed is facilitated, cooperative flowing ofhot air at the bottom is realized, and the circumstances that the bottom and a material placing plate are compactly placed, then the bottom is not completely dried, and consequently, the bottom is attached to the material placing plate due to incomplete drying of the bottom during material taking are avoided; and meanwhile, by means of the upward jacking acting force of a contact assembly, when the bottom of the mold is separated, the separated acting force is dispersed, and attaching deformation is not prone to occurring.

Description

technical field [0001] The invention relates to the field of casting processing equipment, more precisely, it relates to a drying oven for precision casting. Background technique [0002] With the development of the precision casting industry, the size requirements for the casting process are getting higher and higher. When the large-scale mold casting process is dry-molded, the usual drying box is to directly place the mold that has not yet hardened in the drying oven. Inside the box, because the bottom is tightly fitted with the bottom of the drying box, the hot air circulation at the bottom is insufficient, resulting in that the bottom cannot be completely hardened and dried during the drying time, and when unloading, the bottom of the mold that should be completely dry will appear. There is a phenomenon that it fits with the bottom of the drying box. At the same time, because the inside of the drying box dries the mold by infusing dry hot air, the hot air is strong under...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a drying box for precision casting to solve the problem in the prior art that when drying the mold after the injection is completed, the usual drying box is to directly dry the mold that has not yet hardened. The mold is directly placed inside the drying box. Since the bottom fits tightly with the bottom of the drying box, the hot air circulation at the bottom is insufficient, resulting in the bottom not being completely hardened and dry during the drying time. When unloading, it should be completely The bottom of the dried mold will be attached to the bottom of the drying box. At the same time, since the inside of the drying box is filled with dry hot air to dry the mold, the hot air is strong under the action of high-frequency input, so Defects that cause concave deformation on the surface of the mold after direct contact with the mold

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