Molding structure of automobile switch surface cover symbol

Abstract

The utility model discloses a molding structure of an automobile switch surface cover symbol, which comprises a light-transmitting surface cover and a surface cover lining positioned below the light-transmitting surface cover, and is also provided with an inner-layer light-transmitting sheet, the inner-layer light-transmitting sheet comprises a bottom plate and a symbol male die positioned on the bottom plate, and the inner-layer light-transmitting sheet is fixed on the surface cover lining through secondary injection molding; the bottom plate is located below the surface cover lining, and the symbol male die is embedded in the surface cover lining. According to the utility model, the inner-layer light-transmitting sheet is made into an independent piece and is arranged on the surface cover lining through secondary injection molding to form the surface cover symbol, so that compared with the existing process method, the color difference consistency of the surface cover color and the symbol area color is high, the surface of the surface cover symbol is bright and has no concave-convex feeling, the symbol vision is stereoscopic, the light insulation structure is simple, and the cost is low. Forming and assembling are convenient, the qualified rate and the machining efficiency of products can be greatly improved, and therefore the cost of the products is reduced. The method can be widely applied to the field of production and processing of character surface covers of automobile switches.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile switch, especially to a forming structure of automobile switch face cover symbol. BACKGROUND

[0002] The automobile switch face cover is an appearance functional part, which needs to be beautiful and show some function symbols for the convenience of operation identification. In order to achieve the effect of beauty, the face cover is formed by double-color mold injection molding, wherein the surface layer is a transparent cover and the inner layer is made of black material. In order to reflect the white symbol on the face cover, the existing process method is to dig a hole on the face cover lining, spray a layer of black primer on the light-transmitting face cover corresponding to the hole, then engrave the required face cover symbol shape on the black primer by laser engraving process, and then spray a layer of white paint on the symbol shape position, so that the white symbol can be displayed on the face cover. However, it is found in actual production and processing that this method is complicated and high in manufacturing cost. At the same time, since the black primer and the face cover lining are not a kind of material, color difference is inevitable, and the color difference is different due to the spraying method and thickness, so the existing spraying process often causes inconsistent color difference around the light-transmitting symbol after lighting. When spraying, it will be splashed to the surrounding area, causing spots and thus causing unqualified products. SUMMARY

[0003] The utility model aims at providing a forming structure of automobile switch face cover symbol, solving the problems of complicated operation and low product qualification rate of the existing switch symbol forming structure.

[0004] The utility model discloses a forming structure of automobile switch face cover symbol, which comprises a light-transmitting face cover and a face cover lining located below the light-transmitting face cover, and further comprises an inner light-transmitting sheet, wherein the inner light-transmitting sheet comprises a bottom plate and a symbol convex mold located on the bottom plate, and the inner light-transmitting sheet is fixed on the face cover lining by secondary injection molding.

[0005] Further, the face cover lining is made of black non-light-transmitting material, and the inner light-transmitting sheet is made of white light-transmitting material.

[0006] For the convenience of processing and forming, the light-transmitting face cover and the face cover lining are integrally injection molded by double-color mold.

[0007] For the convenience of fixing, a group of injection fixing holes are arranged on the bottom plate of the inner light-transmitting sheet.

[0008] The beneficial effects of this utility model are as follows: This utility model makes the inner light-transmitting sheet with a symbol embossed mold into an independent component, and then uses it as an insert for secondary injection molding to fix it to the inner liner of the cover. Simultaneously, the inner liner of the cover and the light-transmitting cover are integrally injection molded using a two-color mold. Compared with existing processes, this method is simpler to operate, more efficient, and has lower processing costs. Furthermore, this structure has good precision and a high product qualification rate. Because the inner liner of the cover is injection molded from a single material, this utility model can ensure the consistency of color difference around the light-transmitting symbol, improving the qualification rate. Moreover, the use of a symbol embossed mold makes the light-transmitting symbol visually more three-dimensional, with higher recognition compared to flat patterns, and can improve the overall grade of the cover.

[0009] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0010] Fig. 1 This is a three-dimensional structural diagram of the present invention.

[0011] Fig. 2 This is a three-dimensional structural diagram of the cover symbol piece in this utility model.

[0012] Fig. 3 A schematic diagram of the structure of the inner lining of the cover in this utility model is provided with a cover symbol piece.

[0013] Fig. 4 This is a schematic diagram of the structure of the light-transmitting cover in this utility model. Detailed Implementation

[0014] Examples, such as Figs. 1 to 4 As shown, a molding structure for a car switch cover symbol includes a light-transmitting cover 1 and a cover liner 2 located below the light-transmitting cover 1. The cover liner 2 is a non-transparent part. Both the light-transmitting cover 1 and the cover liner 2 are injection molded using a two-color mold. To ensure the cover symbol is visible, the cover symbol facilitates the operator's identification of the corresponding switch button and the use of its related functions. An inner light-transmitting sheet 3 is also provided. The inner light-transmitting sheet 3 includes a base plate 31 and a symbol protrusion 32 located on the base plate 31. The inner light-transmitting sheet 3 is fixed to the cover liner 2 by secondary injection molding. The base plate 31 is located below the cover liner 2, meaning the cover liner 2 is above the base plate 31 and has a light-shielding sheet 21 injection molded thereon. The light-shielding sheet 21 blocks light from passing through the base plate. The symbol protrusion 32 is embedded in the cover liner 2; therefore, light can only pass through the area of ​​the symbol protrusion 32, thus forming a light-transmitting symbol. During processing, the inner light-transmitting sheet 3 is first injection molded, and then the inner light-transmitting sheet 3 is used as an insert to be injection molded together with the light-transmitting cover 1 and the cover liner 2. The second injection molding uses a two-color mold to integrally injection mold the light-transmitting cover 1 and the cover liner 2.

[0015] In order to form a sharp contrast, the face cover liner 2 is usually made of black opaque material, and the inner layer light-transmitting sheet 3 is made of white light-transmitting material, so as to form a sharp contrast. Of course, other colors can be used to distinguish the colors of the face cover liner 2 and the inner layer light-transmitting sheet 3.

[0016] In order to ensure the reliability of the combination of the inner layer light-transmitting sheet 3 and the face cover liner 2 during the secondary injection molding, a group of injection fixing holes 33 are arranged on the bottom plate 31 of the inner layer light-transmitting sheet 3, and the injection fixing holes 33 are in a taper hole structure.

[0017] The utility model is described above with reference to the drawings. Obviously, the utility model is not limited by the above method. As long as various non-essential improvements are made by using the method concept and technical scheme of the utility model, or the above concept and technical scheme of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A molding structure of a symbol of a face cover of an automobile switch, comprising a light-transmitting face cover (1) and a face cover lining (2) located below the light-transmitting face cover (1), characterized in that: An inner light-transmitting sheet (3) is also provided. The inner light-transmitting sheet (3) includes a base plate (31) and a symbol punch (32) located on the base plate (31). The inner light-transmitting sheet (3) is fixed on the inner liner of the cover (2) by secondary injection molding. The base plate (31) is located below the inner liner of the cover (2), and the symbol punch (32) is embedded in the inner liner of the cover (2).

2. The molding structure of the automotive switch cover symbol as described in claim 1, characterized in that: The inner lining (2) of the cover is made of black opaque material, and the inner light-transmitting sheet (3) is made of white light-transmitting material.

3. The molding structure of the automotive switch cover symbol as described in claim 1, characterized in that: The light-transparent cover (1) and the cover liner (2) are integrally injection molded using a two-color mold.

4. The molding structure of the automotive switch cover symbol as described in claim 1, characterized in that: A set of injection molding fixing holes (33) are provided on the bottom plate (31) of the inner light-transmitting sheet (3).

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