Molding method for panel of injection molded part and air-conditioner display apparatus

Abstract

The invention provides a molding method for the panel of an injection molded part. The method comprises the following steps: (1) allowing high-pressure water to flow into a die before injection so as to enable the temperature of the die to exceed viscous flow temperature for thermal deformation of resin; (2) injecting molten resin into the die; and (3) allowing the temperature of the die to rapidly drop to a temperature below thermal deformation temperature of the resin by using cooling water. The invention also provides an air-conditioner display apparatus which comprises a light source, a display box, an injection molded part and a pattern mask, wherein the injection molded part is molded and manufactured by using the molding method for the panel of an injection molded part, and the pattern mask is arranged at the front surface of the display box. The molding method provided in the invention overcomes the problems of warping, bogging-down and the like of an injection molded part and enables weld lines to be eliminated and glossiness of products to be improved. The air-conditioner display apparatus provided in the invention utilizes a highlighting LED display lamp to irradiate an area having a display pattern, which enables display icons to directly permeate the panel of the injection molded part and no display decorating parts to be needed.

Description

technical field [0001] The invention relates to a panel injection molding technology and a panel of an injection molded part. Background technique [0002] The existing air conditioner injection molded part panel increases the display brightness and realistic effect of the display area by thinning the material thickness of the display area of ​​the injection molded part. However, the injection molded parts are thin, causing problems such as warping, sink marks, and poor dimensions. In the traditional ordinary injection molding process, when the mold temperature is set low, although warpage and sink marks can be reduced, and the molding cycle can be shortened, but it is easy to produce poor appearance quality problems such as weld marks, material lines, dark gloss, and rough surface. . On the contrary, when the mold temperature is set high, although the appearance quality of the product surface can be improved, problems such as warping, sink marks, and dimensional defects a...

AI Technical Summary

Problems solved by technology

However, the injection molded parts are thin, resulting in problems such as warping, sink marks, and poor dimensions.

In the traditional ordinary injection molding process, when the mold temperature is set low, although warpage and sink marks can be reduced, and the molding cycle can be shortened, but it is easy to produce poor appearance quality problems such as weld marks, material lines, dark gloss, and rough surface.

On the contrary, when the mold temperature is set high, although the appearance quality of the product surface can be improved, problems such as warping, sink marks, and poor dimensions are prone to occur, and at the same time, the molding cycle is prolonged and the cost is increased.

[0003] The limiting device of the injection molded part made by the prior art needs to be provided with a separate transparent or translucent effect display decoration 20 on the injection molded part panel 10, such as figure 1 As shown, the light source in the display box 30 is displayed by directly shining on the transparent or translucent pattern of the display panel behind the display screen, and the display effect is relatively poor.

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