Metal loudspeaker mesh enclosure structure

Abstract

The utility model provides a metal loudspeaker mesh enclosure structure, which comprises a metal base material and an organic coating arranged on the surface of the base material, the organic coating and the metal base material respectively form a plurality of meshes through development and chemical etching, a certain amount of lateral erosion exists at the edge of a mesh pattern, the lateral erosion is in a suspended state, and the mesh enclosure structure is formed by the metal base material and the organic coating. At the moment, the carborundum mixed water applies certain pressure to bombard the surface of the organic coating through a sand blasting device, and the carborundum mixed water can rapidly fall off under bombardment of carborundum due to the fact that lateral erosion is relatively fragile. And when the carborundum bombards the interiors of the meshes, the positions of the openings of the meshes, namely the side corners of the organic coating, can be impacted and slowly abraded to form smooth small arc surfaces, so that the effect of improving the touch feeling of the mesh areas on the surface of the mesh enclosure is achieved.

Description

Technical Field

[0001] This utility model relates to the surface treatment technology of metal speaker grille parts for automotive interiors, specifically a metal speaker grille structure. Background Technology

[0002] Automotive metal horn grilles serve both decorative and aesthetic purposes, directly impacting the car's interior and exterior sense of luxury. The selection of trim materials should be tailored to the specific needs of the vehicle, adhering to principles of beauty, harmony, practicality, and safety, to ensure both decorative appeal and a tactilely friendly feel. Before use, automotive metal grilles require a series of surface treatments to eliminate any roughness at the mesh openings and prevent any uncomfortable contact with the skin.

[0003] Traditional process 1: While electropolishing can improve the feel of the parts, it also changes the gloss and texture of the parts' surface.

[0004] Traditional process 2: Plasma polishing can improve the feel of the parts without significantly altering their surface gloss and texture. However, this process is very energy-intensive, and special care must be taken to prevent burns and electric shocks during production. Utility Model Content

[0005] This invention provides a metal speaker grille structure to solve the technical problems mentioned in the background art.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0007] A metal speaker grille structure includes a metal substrate. An organic coating with a thickness of 0.01-0.1 mm is applied to the upper and lower surfaces of the metal substrate. The organic coating is chemically developed to form multiple mesh openings (1), each mesh opening having a width of 0.5-2.5 mm and positioned perpendicularly to the metal substrate. The metal substrate is chemically etched to form multiple mesh openings (2), which are interconnected with the mesh openings (1). The side corners of the organic coating and the metal substrate are rounded using diamond abrasive.

[0008] Furthermore, since the second mesh is formed by chemical etching, multiple suspended lateral etches will be formed at the edges of the mesh image. These lateral etches can be removed by bombarding the surface of the organic coating with a mixture of diamond and water.

[0009] Furthermore, the size of the corundum is 180~200 mesh; the corundum mixed with water is subjected to pressure and bombarded on the surface of the organic coating by a sandblasting device; the spraying pressure is 3.8KG, the linear velocity is 220~260mm / min, and the temperature is 0~40℃.

[0010] Further, the material of the organic coating is epoxy or alkyd resin, which has good toughness and can meet the requirement of no cracking when the bending angle is more than 120°.

[0011] Further, the mesh hole one is in the shape of an elongated ellipse.

[0012] Further, the distance between the plurality of mesh holes one arranged along the length direction of the organic coating is 0.5 mm, and the distance between the plurality of mesh holes one arranged along the width direction of the organic coating is 0.4 mm.

[0013] Compared with the prior art, the utility model has the following advantages or beneficial effects:

[0014] The metal part surface is protected by the organic coating with good toughness, the mesh hole one is formed by developing the organic coating, the mesh hole two is formed by chemical etching of the metal substrate, the mesh hole one vertically penetrates the mesh hole two, and the mesh hole two is bombarded by the diamond sand; the edge of the mesh hole two pattern is side-etched in a suspended state, the diamond sand mixed with water is bombarded on the surface of the organic coating by the sand blasting equipment under a certain pressure, the side-etched part is relatively fragile and falls off quickly under the bombardment of the diamond sand, and when the diamond sand bombards the inside of the mesh hole two, the side edge of the mesh hole two is slowly eroded to form a smooth arc, so that the touch feeling of the mesh hole area of the mesh surface is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.

[0016] Figure 1 It is a structure schematic view of the metal loudspeaker mesh cover (part) ;

[0017] Figure 2 It is a structure schematic view of the metal loudspeaker mesh cover (part) ; Figure 1 It is a structure schematic view of the metal loudspeaker mesh cover (part) ;

[0018] Figure 3 It is a structure schematic view of the metal loudspeaker mesh cover (part) ;

[0019] In the drawing, 1 is a metal substrate, 2 is an organic coating, 3 is a mesh hole one, 4 is diamond sand, and 5 is a mesh hole two. DETAILED DESCRIPTION

[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0021] Please refer to the drawings Figures 1-3 The embodiment provides a metal loudspeaker mesh structure, which comprises a metal base material 1, an organic coating layer 2 is coated on the upper surface and the lower surface of the metal base material 1 to form a protective layer for protecting the surface of the metal base material as a whole, and the thickness of the organic coating layer 2 is 0.1 mm. The organic coating layer 2 and the metal base material are connected through developing and chemical etching to form a plurality of mesh holes 3 and mesh holes 5 arranged in a mesh shape, the thickness of the mesh hole 3 is 0.1 mm, the mesh hole 3 is arranged in a vertical relationship with the metal base material 1, the mesh hole 5 is mutually penetrated with the mesh hole 3, and the mesh hole 5 is convenient for the diamond sand 4 to bombard the inside of the mesh hole 5. After chemical etching, there is a certain amount of side etching at the edge of the mesh hole 5 pattern, and the side etching is in a suspended state, at this time, the diamond sand 4 mixed with water is applied to the surface of the organic coating layer 2 through a sand blasting device under a certain pressure, and the side etching is rapidly dropped under the bombardment of the diamond sand 4 because the side etching is relatively fragile. The side edge angle of the organic coating layer 2 at the position of the mouth of the mesh hole 3 is in a sharp angle shape, when the diamond sand 4 bombards the inside of the mesh hole 3, the side edge angle of the organic coating layer and the metal base material is slowly worn to form a smooth small arc surface, so that the effect of improving the touch feeling of the mesh hole area on the surface of the mesh is achieved.

[0022] Further description, the size of the diamond sand 4 selected in the embodiment is 180-200 mesh. The diamond sand 4 mixed with water is applied to the surface of the organic coating layer 2 through a wet type special sand blasting device under a certain pressure, the spraying pressure is 3.8KG, the linear speed is 220-260mm / min, and the temperature is 0-40℃.

[0023] Further description, the mesh hole 3 is in a long strip elliptical shape, the depth of the mesh hole 3 is consistent with the thickness of the organic coating layer 2. The distance between a plurality of mesh holes 3 arranged along the length direction of the organic coating layer 2 is 0.5mm, and the distance between a plurality of mesh holes 3 arranged along the width direction of the organic coating layer 2 is 0.4mm. The material of the organic coating layer 2 is epoxy resin, which has good toughness and satisfies the bending angle of more than 120° without cracking.

[0024] The complete process of the embodiment is: metal raw material- tearing protective film-pretreatment cleaning-oil conditioning-first coating-baking-second coating-baking-exposure-development-inspection-chemical etching-sand blasting-demolding-inspection. The embodiment achieves better touch feeling of the part surface and lower production cost by coating the organic coating on the surface of the metal part, changing the production process sequence of the part and other auxiliary facilities.

[0025] The above only describes the preferred embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structural transformation, direct or indirect application in other related technical fields using the content of the present application specification and drawings are also included in the patent protection range of the present application.

Claims

1. A metal speaker grille structure, characterized by, The application relates to a metal substrate (1) with an organic coating (2) on the upper and lower surfaces of the metal substrate (1), wherein the thickness of the organic coating (2) is 0.01-0.1 mm; the organic coating (2) is formed into a plurality of mesh holes (3) through chemical development, the width of the mesh holes (3) is 0.5-2.5 mm, the mesh holes (3) are arranged in a vertical relationship with the metal substrate (1); the metal substrate (1) is formed into a plurality of mesh holes (5) through chemical etching, the mesh holes (5) are mutually penetrated with the mesh holes (3); and the side edge corners of the organic coating (2) and the metal substrate (1) are polished into circular arcs through diamond sand (4).

2. The metal speaker mesh structure of claim 1, wherein, The sidewalls of the mesh holes (5) have a plurality of suspended side etchings, the surface of the organic coating (2) is hit by the diamond sand (4) mixed with water, and the side etchings are caused to fall off.

3. The metal speaker mesh structure of claim 1, wherein, The material of the organic coating (2) is epoxy or alkyd resin.

4. The metal speaker mesh structure of claim 1, wherein, The mesh holes (3) are long strip ellipses.

5. The metal speaker mesh structure of claim 1, wherein, The distance between a plurality of the mesh holes (3) arranged along the length direction of the organic coating (2) is 0.5 mm; and the distance between a plurality of the mesh holes (3) arranged along the width direction of the organic coating (2) is 0.4 mm.

6. The metal speaker mesh structure of claim 1, wherein, The size of the diamond sand (4) is 180-200 mesh.

7. The metal speaker mesh structure of claim 1, wherein, The diamond sand (4) mixed with water is hit on the surface of the organic coating through a sand blasting device under pressure; the spraying pressure is 3.8 KG, the linear speed is 220-260 mm / min, and the temperature is 0-40 DEG C.

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