Molding sand collecting and cooling device

Abstract

The invention relates to the field of sand casting, and discloses a molding sand collecting and cooling device. The molding sand collecting and cooling device comprises a sand bin, a sand conveying pipe and a sand conveying fan. A feeding hopper is arranged on the sand conveying pipe. An air outlet is formed in the top of the sand bin. A feeding device is arranged between the feeding hopper and the sand conveying pipe and comprises a shell and a sand conveying wheel. The sand conveying wheel comprises a rotating shaft and sand conveying blades. A sand conveying channel is arranged at the bottom of the sand conveying wheel and the bottom of the shell. The sand conveying fan and the sand conveying pipe are connected to the two ends of the sand conveying channel correspondingly. The molding sand collecting and cooling device has the following advantages and effects that high-pressure air generated by the sand conveying fan pushes molding sand to enter the sand bin at the high position through the sand conveying pipe to be stored, the conveying height of the molding sand is increased, and heat exchange cooling and dust removal are carried out on the molding sand while cost is reduced; and the sand conveying fan pushes the sand conveying wheel to rotate while conveying the molding sand, the molding sand enters the sand conveying pipe in one direction, splashing of the molding sand at a sand inlet is avoided, and the conveying stability and safety of the molding sand are improved.

Description

technical field [0001] The invention relates to the technical field of casting, in particular to a collecting and cooling device for molding sand. Background technique [0002] Molding sand can be divided into clay sand, water glass sand, cement sand, resin sand, etc. according to the different binders used. Clay sand, water glass sand and resin sand are the most used. Molding sand is often used for machine molding, and can also be used for manual molding. , The sand mold made can directly pour molten metal, which has the advantages of high production efficiency, low cost and short production cycle. In the existing sand casting, it is necessary to crush and recycle the used sand molds. Since the molding sand will remain at a certain temperature after use, it is necessary to cool the molding sand before storage. Publication number is that the Chinese patent of CN111375728A discloses a kind of molding sand rapid cooling recycling device, the negative pressure that suction fan...

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Problems solved by technology

Publication number is that the Chinese patent of CN111375728A discloses a kind of molding sand rapid cooling recycling device, the negative pressure that suction fan produces will suck out molding sand from the sand storehouse, but the transmission height of negative pressure to molding sand can only reach 3-5m side cannot It can only be applied to small batch storage in small sand warehouses

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