CN219806779U

CN219806779U - ACC label

Info

Publication number: CN219806779U
Application number: CN202320522214.XU
Authority: CN
Inventors: 付强; 颜乾忠; 周夏杰
Original assignee: Yanfeng Plastic Omnium Automotive Exterior Systems Co Ltd
Current assignee: Yanfeng Plastic Omnium Automotive Exterior Systems Co Ltd
Priority date: 2023-03-17
Filing date: 2023-03-17
Publication date: 2023-10-10
Anticipated expiration: 2033-03-17

Abstract

The present utility model provides an ACC signage comprising: a housing, comprising: the paint comprises a polycarbonate layer, a hardening paint layer sprayed on the outer surface of the polycarbonate layer, and a primer layer, an indium film layer and a finish paint layer which are sequentially formed on the inner surface of the polycarbonate layer; and a base bonded to the finish layer of the housing by glue; the ACC label has a uniform wall thickness with a wall thickness dimension of 6.0±0.2mm. The ACC label has less requirements on label modeling, can meet the logo modeling with the metal color and no black edge on the periphery, and has good application prospect, and the qualification rate of the ACC label prepared by the method is as high as more than 95%.

Description

ACC label

Technical Field

The utility model relates to the field of ACC label preparation, in particular to an ACC label.

Background

The ACC (Adaptive Cruise Control) function is part of intelligent assisted driving, the load rate of ACC radar is rising year by year, and the need for ACC signage by the whole vehicle factories is increasing. The logo modeling of different automobile brands is different, and challenges are brought to ACC label process design. The periphery of the conventional automobile label is provided with a black boundary, and the composite ACC label can be formed by adopting an insert injection molding process. However, part of logo circumference of the automobile is metallic bright silver, and the traditional insert injection molding process cannot be used.

The disadvantage of the prior art is that the logo modeling has a limited requirement, and the outer ring needs to have a black structure for designing the insert structure, so that the manufacturing of the ACC label with the outer ring of metallic bright silver cannot be realized in the prior art.

Disclosure of Invention

The utility model aims to provide an ACC label, so as to solve the problem that an ACC label with a metallic bright silver outer ring cannot be manufactured in the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme:

according to the present utility model, there is provided an ACC label comprising: a housing, comprising: the paint comprises a polycarbonate layer, a hardening paint layer sprayed on the outer surface of the polycarbonate layer, and a primer layer, an indium film layer and a finish paint layer which are sequentially formed on the inner surface of the polycarbonate layer; and a base bonded to the finish layer of the housing by glue; wherein, the ACC label has a uniform wall thickness, and the wall thickness dimension is 6.0+/-0.2 mm.

Preferably, the outer ring of the ACC label is a metallic color provided by an indium film layer.

Preferably, the thickness of the indium film layer is 25-40 nm so as to avoid affecting the propagation of the 77GHz millimeter wave radar.

Preferably, the primer layer has a thickness of 8 to 15 μm.

Preferably, the thickness of the finish paint layer is 12-20 μm.

In summary, according to the ACC label provided by the utility model, an adhesion process is adopted to replace an insert molding process in the prior art, so that the design and production of the composite ACC label with the outer ring of metal color logo are met. The manufacturing process provided by the utility model has less requirements on the shape of the label, can meet the requirement of logo shapes with metal colors and no black edges on the circumference, and meanwhile, the qualification rate of the ACC label manufactured by insert injection molding in the prior art is only about 90%, and the qualification rate of the ACC label manufactured by the manufacturing process is as high as more than 95%. Therefore, according to the utility model, the ACC label with wider application range and higher qualification rate is provided.

Drawings

Fig. 1 is a flowchart of a manufacturing process of an ACC label according to a preferred embodiment of the utility model;

FIG. 2 is a plan view of an ACC signage provided in accordance with a preferred embodiment of the present utility model;

fig. 3 is a cross-sectional view of the ACC label shown in fig. 2.

Detailed Description

The utility model will be further illustrated with reference to specific examples. It should be understood that the following examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

According to a preferred embodiment of the present utility model, there is provided a manufacturing process of an ACC label, as shown in fig. 1, comprising the steps of:

s1, double-color injection molding

The shell with logo modeling is formed by taking polycarbonate as a raw material and adopting a double-color injection molding process, and clear and complete boundaries of transparency and black are obtained through the transparent polycarbonate raw material and the black polycarbonate raw material, so that the transparent logo modeling is displayed. In the double-color injection molding process, the X-direction deformation of the shell can be ensured not to exceed 0.3mm by controlling the injection molding pressure maintaining pressure to be 70-90 Mpa and the time to be 6-10 s so as to meet the requirements of the wall thickness and the air gap layer of the final product.

S2, baking at high temperature

And (3) baking the shell obtained by injection molding in the step (S1) at a high temperature to remove internal stress of the shell. Specifically, the shell is placed in a baking furnace along the horizontal direction, and is annealed for 30-90 minutes at the temperature of 115-130 ℃, and the parameters are verified by the process, so that the internal stress of the polycarbonate workpiece can be removed, and cracks in subsequent production are avoided.

S3, evaporating vacuum plating

Firstly, shielding the outer surface of the shell, and then performing the step S3, wherein the method specifically comprises three steps:

1) A layer of transparent primer is sprayed on the inner surface of the shell, the main component is paint resin, the aim is to improve the adhesive force of a subsequent coating and the gloss after coating, and the process is mainly to control the thickness of the primer layer to be 8-15 mu m so as to ensure that the appearance performance meets the requirement;

2) Using a vacuum plating process to attach a layer of metal indium film on the transparent primer layer, the color of the indium film can penetrate the transparent shell, so that the area appears as bright silver when being observed from the outer surface of the shell, and the transmission of the 77GHz millimeter wave radar is not affected, preferably, the conditions of the vacuum plating process are as follows: 4.0-6.0E-5 mbar, the rotating speed is 15-25 rpm, the current is 400-600A, the coating time is 20-40 s, and the thickness of the formed indium film is 25-40 nm;

3) After the metallic indium film is finished, a transparent finish paint is sprayed, the main purpose of which is to protect the coating film and ensure that the subsequent process does not damage the coating film, and the thickness of the finish paint layer is preferably 12-20 mu m.

S4, hardening treatment

And (3) spraying hardening paint on the outer surface of the shell obtained in the step (S3) for hardening treatment so as to improve the surface gloss, hardness, weather resistance and scratch resistance of the polycarbonate. Preferably, the conditions of the hardening treatment are: temperature: 23+ -2deg.C, humidity: 65±5%, flash-dry temperature: flash-dry time at 20-30 ℃): 1-3 min, pre-curing temperature: 60-70 ℃ and UV energy of 3-12J/cm ² The light intensity is greater than 0.25W/cm ² 。

S5, gluing and compacting

And gluing and compacting the hardened shell and a pre-prepared base through a robot to finally obtain the ACC label with uniform wall thickness. The utility model compares the two-component polyurethane glue with the one-component hot melt glue, comprehensively evaluates the adhesive property, the construction path and the like, and finally selects the one-component hot melt glue. The other key point of the gluing process is that the gluing amount is uniform, the gluing time is less than 30s, and the glue opening time is ensured to be met. By the compacting equipment after gluing, the uniform wall thickness of the product is ensured, and the wall thickness is required to be 6.0+/-0.2 mm.

S6, air tightness detection and wave transmission detection

And detecting the air tightness, the wall thickness and the radar wave penetrability of the ACC label assembly, and ensuring that the requirements of workpieces are met. The air tightness is 4Kpa, the pressure drop cannot exceed 0.1Kpa after pressure maintaining for 20s, and the radar penetration loss cannot exceed 1.5dB.

It will be appreciated that different product shapes have different process requirements, and that specific process parameters may be further optimally screened within the preferred ranges described above.

For example, according to a preferred embodiment of the present utility model, the adhesive substrate is a paint finish and polycarbonate, the adhesive performance is ensured by performing various glue tests on the board, and the adhesive is selected in combination with comprehensive evaluation of equipment scheme, construction window and economy, and the single-component hot melt adhesive is finally selected.

Referring to fig. 2 and 3, an ACC label according to a preferred embodiment of the present utility model is shown. The ACC signage includes: a shell 1 and a base 2 which are bonded by glue 3. Wherein the housing 1 comprises: a polycarbonate layer 11, a hardened paint layer 12 sprayed on the outer surface of the polycarbonate layer 11, and a primer layer 13, an indium thin film layer 14 and a finish paint layer 15 which are sequentially formed on the inner surface of the polycarbonate layer 11; wherein, the thickness of this ACC sign is 6.0 + -0.2 mm.

According to the preferred embodiment, the logo of the ACC label is shaped like a Y, the Y-shaped area a is bright silver with a stereoscopic effect and is provided by the indium thin film layer, the inner circle area B outside the Y-shaped area is bright black and is provided by black polycarbonate, and the outermost circle area C is bright silver and is provided by the indium thin film layer. It should be appreciated that the ACC signage is not limited to the logo molding, but may be other suitable logo molding.

Preferably, the thickness of the indium thin film layer 14 is 25-40 nm to avoid affecting the propagation of 77GHz millimeter wave radar.

Preferably, the primer layer 13 has a thickness of 8 to 15 μm and the topcoat layer 15 has a thickness of 12 to 20 μm.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the scope of the present utility model, and various modifications can be made to the above-described embodiment of the present utility model. All simple, equivalent changes and modifications made in accordance with the claims and the specification of the present application fall within the scope of the patent claims. The present utility model is not described in detail in the conventional art.

Claims

1. An ACC label, comprising:

a housing, comprising: the paint comprises a polycarbonate layer, a hardening paint layer sprayed on the outer surface of the polycarbonate layer, and a primer layer, an indium film layer and a finish paint layer which are sequentially formed on the inner surface of the polycarbonate layer; and

a base bonded with the finish paint layer of the shell through glue;

wherein, the ACC label has a uniform wall thickness, and the wall thickness dimension is 6.0+/-0.2 mm.

2. The ACC label according to claim 1, wherein the outer perimeter of the ACC label is a metallic color provided by the indium film layer.

3. The ACC label according to claim 1, wherein the indium thin film layer has a thickness of 25-40 nm to avoid affecting the propagation of 77GHz millimeter wave radar.

4. The ACC label according to claim 1, wherein the primer layer has a thickness of 8-15 μm.

5. The ACC label according to claim 1, wherein the topcoat layer has a thickness of 12-20 μm.