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The structure of the upper box for casting refrigerator inner tank mold based on v-method

A refrigerator liner and mold technology, applied in the field of casting, can solve problems such as the complexity of the punch model, the inability to shape the concave shape, and the inability to process the concave shape by numerical control molding, so as to achieve faster solidification, lower casting defects, and a simple structure Effect

Active Publication Date: 2016-07-13
CHUZHOU JINNUO INDAL
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Furthermore, the model of the punch is relatively complicated, and the concave shape cannot be directly processed, and the complex concave shape cannot be processed by CNC forming

Method used

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  • The structure of the upper box for casting refrigerator inner tank mold based on v-method

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Embodiment Construction

[0022] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0023] see figure 1 : An upper box structure for casting refrigerator liner molds based on the V method, including a vacuum sand box 1, a die model 2 is formed in the vacuum sand box 1, and the gap between the die model 2 and the vacuum sand box 1 is filled There is dry sand 3, and a cold iron block 4 is arranged on the inner wall of the die model 2, and the cold iron block 4 is uniformly distributed on the inner wall of the die model 2, and a negative pressure pipeline 5 is arranged in the inner cavity of the die model 2, and the negative Dry sand 3 is filled between the pressure pipe 5 and the inner wall of the die model 2, and the casting system model 6 is arranged on both sides of the upper end of the die model 2; the cold iron block 4 is de...

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Abstract

The invention discloses an upper box structure for a refrigerator inner liner mold on the basis of V-process casting. The upper box structure is characterized by comprising a vacuum sand box, wherein a convex-mold model is formed in the vacuum sand box; gaps between the concave-mold model and the vacuum sand box are filled with dry sand; cold iron blocks are arranged on the inner wall of the concave-mold model and are uniformly distributed on the inner wall of the concave-mold model; a negative-pressure pipeline is arranged in an inner cavity of the concave-mold model; a part between the negative-pressure pipeline and the inner wall of the concave-mold model is filled with dry sand; and the two sides of the upper end of the concave-mold model are provided with casting system models. The upper box structure disclosed by the invention is simple in structure and reasonable in design; by adoption of the upper box structure, the casting defects of a casting piece is reduced, the production quality of a casting piece product is greatly improved, and the qualification rate of the casting piece product is greatly increased.

Description

technical field [0001] The invention relates to the field of casting technology, in particular to an upper box structure for casting refrigerator liner molds based on the V method. Background technique [0002] Home appliance liner mold is a kind of vacuum plastic forming mold, and the product has high requirements on the smoothness of the molding surface of the mold. The quality of the molding surface of the mold directly affects the surface quality and yield of the inner tank after forming. Therefore, for the inner tank molding mold, the roughness of the molding surface should not be greater than Ra=0.8μm, and the surface should be flat, smooth, free of blisters and pores. . [0003] At present, the sand casting process is generally used to cast home appliance inner tank molds. However, for inner tank molds with large outlines, complex inner cavity structures, and cooling water pipes, the cavity is not easy to trim and easy to collapse when using full sand casting. . Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/03B22D27/04
CPCB22C9/03B22D27/04
Inventor 张玉胜刘红涛
Owner CHUZHOU JINNUO INDAL
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