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Molding Process of Refrigerator Liner Mold Upper Box Based on V Method

A refrigerator liner and molding process technology, which is applied to casting molding equipment, casting molds, molding machines, etc., can solve the problems that the concave shape cannot be molded, the concave shape cannot be processed by numerical control molding, and the convex mold model is complicated, etc., to achieve multiple heat effect

Active Publication Date: 2016-07-06
CHUZHOU JINNUO INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Molding Process of Refrigerator Liner Mold Upper Box Based on V Method
  • Molding Process of Refrigerator Liner Mold Upper Box Based on V Method
  • Molding Process of Refrigerator Liner Mold Upper Box Based on V Method

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Embodiment Construction

[0031] 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.

[0032] see Figure 1-6 :

[0033] A casting molding process for refrigerator liner mold upper box based on V method, comprising the following process steps:

[0034] 1) Directly process the required punch shape according to the actual shape of the inner tank, and place the processed punch 7 on the positioning plate 1;

[0035] 2) Cover the placed punch 7 with a vacuum sand box 2, take out the main body of the model under negative pressure, and then take out the loose block of the model after it is damaged, so that the shape and film of the sand mold cannot be damaged, and it is made into a disposable Concave mold; use the negative pressure of the convex mold 7 to form a concave mold, which is simple and easy;

[0036] 3) Place the designed ga...

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PUM

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Abstract

The invention discloses a modeling process of an upper box for a refrigerator inner liner mold on the basis of V-process casting. The modeling process is characterized by comprising the following process steps: (1) directly processing out a needed convex-mold shape according to the shape of the actual inner liner, and putting a processed convex mold on a positioning template; (2) covering a vacuum sand box on the well-placed convex mold, taking out a model main body in a negative-pressure state, damaging movable blocks of a model, and taking out the movable blocks of the model without damaging the shape of a sand mold and a thin film, and manufacturing into a disposable convex mold; and (3) placing a well-designed casting system on the concave mold, wrapping a plastic thin film on the casting system, simultaneously placing a cold iron block and sand on the inner wall of the concave mold simultaneously, placing a negative-pressure pipeline into a concave model so as to improve the modeling strength, adding dry sand, placing on a vibratory compacting platform after the sand is completely added, pressurizing and forming the upper box.

Description

technical field [0001] The invention relates to the field of casting technology, in particular to a molding process for casting an upper box of a refrigerator liner mold based on a 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 casti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/03B22C15/28
Inventor 马正松刘超
Owner CHUZHOU JINNUO INDAL