Device for once blow molding of sand cores and chillers

Abstract

The invention proposes a device for once blow molding of sand cores and chillers. The device comprises two half molds symmetrically arranged and respectively being a left half mold and a right half mold, wherein inserts are arranged on the half molds; three copper sleeves are arranged on the inserts; magnets are arranged in the copper sleeves; two heating pipes are arranged at one sides of the inserts; semicircular chillers are arranged at the other sides of the inserts, and are absorbed in the half molds through the magnets; molding cavity sand cores are arranged in the semicircular chillers; three exhaust connecting holes are formed in the molding cavity sand cores; and a sand ejecting port is formed above the joined place of the two half molds. The device can realize once blow molding of the sand cores and the chillers; the manufactured sand cores and chillers are smooth and tidy in joint, and need no repair and baking; and the sand cores blown by the device save multiple production procedures, guarantee the product size requirement, and improve the inherent and appearance qualities of castings.

Description

technical field [0001] The invention relates to a device for one-time blow molding of sand cores and chill irons. Background technique [0002] The following problems often occur in the blowing sand core and chill iron process in the prior art: [0003] 1. Ordinary blown sand cores and chilled iron processes mostly use the method of making the core first and then adhering. The adhered chilled iron is uneven (severely affects the product size), has a large amount of gas generation, and needs to repair gaps and then bake. There are many processes, the labor intensity is high, and the cost is high. [0004] 2. Ordinary blown sand cores and cold irons are also placed in various ways and formed at one time, but there are often problems with the cold iron shifting up and down, left and right, and the effect is very poor. [0005] 3. Ordinary blown sand cores and cold iron processes can hardly make cold iron with curved surface and large area. Contents of the invention [0006...

AI Technical Summary

Problems solved by technology

[0003] 1. Ordinary blown sand cores and chilled iron processes mostly use the method of making the core first and then adhering. The adhered chilled iron is uneven (severely affects the product size), has a large amount of gas generation, and needs to repair gaps and then bake. Many processes, high labor intensity and high cost

[0004] 2. Ordinary blown sand cores and cold iron processes also have various methods to place them in and form them at one time, but there are often problems with the cold iron shifting up and down, left and right, and the effect is very poor

[0005] 3. Ordinary blown sand cores and cold iron technology can hardly make cold iron with curved surface and large area

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