Manufacturing method of middle frame and middle frame

Abstract

Embodiments of the present application provide a manufacturing method of a middle frame and the middle frame, wherein the manufacturing method of the middle frame is applied to a display device, and the manufacturing method comprises the following steps: obtaining an aluminum extruded profile; providing a triangular hole at a preset position of the aluminum extruded profile, the aluminum extruded profile comprising a first sidewall, a second sidewall and a third sidewall which surround to form the triangular hole, wherein the third sidewall is parallel to the long side of the aluminum extruded profile; performing wire drawing and oxidation treatment on the aluminum extruded profile with the triangular hole to obtain an aluminum oxide type; opening an opening on the third sidewall and making the opening communicate with the triangular hole; and performing bending on the aluminum oxide type with the opening at the opening to obtain the middle frame. According to the embodiments of the present application, the triangular hole is provided at the preset position of the aluminum extruded profile, and the aluminum extruded profile can maintain a certain strength through the third sidewall, so that deformation or fracture is prevented, and the product yield of the middle frame is improved.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a method for manufacturing a mid-frame and the mid-frame itself. Background Technology

[0002] Anodized aluminum alloys have been widely used in TV bezels in recent years, mainly due to their advantages: 1) Easy to form: Aluminum alloys are easily extruded into various complex cross-sectional shapes, facilitating structural design and mid-frame processing. 2) Metallic appearance: 6-series aluminum alloys are easy to anodize and color without losing their metallic texture. 3) Good reliability and scratch resistance: The anodized film has high corrosion resistance, and as a ceramic film, it has high hardness and scratch resistance. 4) Good solvent resistance and not easily soiled: The surface of the anodized film is usually fingerprint-resistant and can be wiped with alcohol, making it easy to clean. 5) Easy to process high-gloss chamfered decorations, etc.

[0003] Most existing TV frames are made of aluminum alloy after multiple bending processes. During the manufacturing process, they need to be sprayed or anodized to protect them. However, the V-shaped defects are prone to deformation or breakage during the anodizing process, resulting in a low product yield for the frames. Summary of the Invention

[0004] This application provides a method for manufacturing a mid-frame and a mid-frame that can solve the problem of low product yield in existing mid-frames.

[0005] This application provides a method for manufacturing a mid-frame, applied to a display device, the method comprising:

[0006] Obtain aluminum extrusion profiles;

[0007] A triangular hole is provided at a predetermined position on the aluminum extruded profile. The aluminum extruded profile includes a first sidewall, a second sidewall, and a third sidewall that surround the triangular hole, wherein the third sidewall is parallel to the long side of the aluminum extruded profile.

[0008] The aluminum extruded profile with the triangular hole is subjected to wire drawing and oxidation treatment to obtain an alumina profile;

[0009] An opening is made in the third sidewall, and the opening communicates with the triangular hole;

[0010] The alumina type with an opening is bent at the opening to obtain the middle frame.

[0011] Optionally, obtaining the aluminum extruded profile includes:

[0012] Aluminum alloy sheet is placed in a stamping die and extruded to obtain aluminum extrusion profile;

[0013] The aluminum extruded profile is then cut to ensure that its length reaches a threshold.

[0014] Optionally, the provision of a triangular hole at a predetermined position on the aluminum extruded profile includes:

[0015] A triangular hole is formed at a predetermined position on the aluminum extrusion profile by stamping.

[0016] Optionally, the step of creating an opening on the third sidewall and communicating the opening with the triangular hole includes:

[0017] The triangular hole of the alumina mold is punched to remove the third sidewall, and the opening is made to communicate with the triangular hole to obtain an alumina mold with a V-shaped opening.

[0018] Optionally, the step of drawing and oxidizing the aluminum extrusion profile having the triangular hole to obtain an alumina profile includes:

[0019] The surface of the aluminum extruded profile is brushed.

[0020] The aluminum extrusion profile after drawing is subjected to an oxidation treatment to obtain an alumina profile.

[0021] Optionally, the step of oxidizing the drawn aluminum extrusion profile to obtain an alumina profile includes:

[0022] The aluminum extrusion profile after wire drawing is subjected to anodizing treatment to obtain anodized aluminum profile.

[0023] Optionally, the step of anodizing the drawn aluminum extrusion profile to obtain anodized aluminum profile includes:

[0024] Multiple drawn aluminum extrusion profiles are arranged alternately on the hanger, and each drawn aluminum extrusion profile is parallel to the bottom surface of the tank.

[0025] Multiple drawn aluminum extrusion profiles on the hanger are placed in the tank so that the multiple drawn aluminum extrusion profiles are anodized simultaneously.

[0026] Optionally, the alumina mold has two openings, and bending the alumina mold with the openings at the openings to obtain the middle frame includes:

[0027] The alumina type with openings is bent toward the inside of the openings at the two openings respectively, so that the first sidewall and the second sidewall of each opening are joined together.

[0028] Welding is performed at the joint between the first and second sidewalls of each opening.

[0029] Optionally, the triangular hole is shaped like an isosceles triangle or an equilateral triangle.

[0030] This application also provides a mid-frame for use in a display device, wherein the mid-frame is manufactured using the method described in any of the preceding embodiments.

[0031] The beneficial effects of this application are as follows: The method for manufacturing a mid-frame provided in this application embodiment, applied to a display device, includes: obtaining an aluminum extrusion profile; providing a triangular hole at a predetermined position on the aluminum extrusion profile; the aluminum extrusion profile includes a first sidewall, a second sidewall, and a third sidewall surrounding the triangular hole, wherein the third sidewall is parallel to the long side of the aluminum extrusion profile; performing wire drawing and anodizing treatment on the aluminum extrusion profile with the triangular hole to obtain an alumina profile; opening an opening on the third sidewall and connecting the opening to the triangular hole; and bending the alumina profile with the opening at the opening to obtain the mid-frame. This application embodiment, by providing a triangular hole at a predetermined position on the aluminum extrusion profile, facilitates the handling of the aluminum extrusion profile during wire drawing and anodizing, and the third sidewall helps maintain a certain strength in the aluminum extrusion profile, preventing deformation or breakage, thereby improving the product yield of the mid-frame. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0034] Figure 1 This is a flowchart illustrating the method for manufacturing the middle frame provided in an embodiment of this application.

[0035] Figure 2 for Figure 1 The diagram shows the process of obtaining aluminum extrusion profiles in the manufacturing method of the middle frame.

[0036] Figure 3 for Figure 1 The diagram shows the process of obtaining anodized aluminum in the fabrication of the middle frame.

[0037] Figure 4 for Figure 3 The diagram shows a process for obtaining anodized aluminum in the manufacturing method shown.

[0038] Figure 5 for Figure 1The process flow diagram shown is for obtaining aluminum extruded profiles with V-shaped openings in the manufacturing method of the middle frame.

[0039] Figure 6 for Figure 1 The diagram shows the process of bending the frame to create the middle frame. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0041] In the description of this application, 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," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0042] In recent years, with the high degree of homogenization of television products and intensified competition, how to reduce the manufacturing cost of aluminum frames and enhance product competitiveness has become an important issue.

[0043] Therefore, in order to solve the above problems, this application proposes a method for manufacturing a middle frame and a middle frame. The following description, in conjunction with the accompanying drawings and embodiments, further illustrates this application.

[0044] Please see Figure 1 , Figure 1 This is a flowchart illustrating a method for manufacturing a mid-frame according to an embodiment of this application. This application provides a method for manufacturing a mid-frame, applied to a display device, which includes the following steps:

[0045] 101. Obtain aluminum extrusion profiles.

[0046] Aluminum extrusion is the process of pushing heated aluminum billets through a die with a desired cross-section under pressure. The resulting profiles are lightweight, high-strength, corrosion-resistant, and have a shape similar to the V-shaped opening of the die. Typically, the die is made of hardened steel or cemented carbide. There are two common methods for extruding aluminum: direct extrusion (same as forward extrusion) and indirect extrusion (same as reverse extrusion). The specific method can be set according to actual needs and is not specifically limited here.

[0047] Aluminum extruded profiles can be classified in several ways. For example, based on the aluminum material, they can be divided into 1100 aluminum profiles, 6061 aluminum profiles, and 6063 aluminum profiles. Depending on their application, they can be categorized as architectural aluminum profiles, industrial aluminum profiles, etc. The specific selection of aluminum extruded profiles can be determined based on actual conditions and is not specifically limited here.

[0048] For details on how to obtain aluminum extruded profiles, please refer to the following article. Figure 2 , Figure 2 for Figure 1 The diagram illustrates the process of obtaining the aluminum extruded profile in the manufacturing method of the middle frame. The specific process is as follows:

[0049] 1011. Aluminum alloy sheet is placed in a stamping die for extrusion to obtain aluminum extrusion profile.

[0050] Aluminum alloy sheet is extruded through an extrusion press and an extrusion die to obtain an aluminum extruded profile with a middle frame cross-section. The shape of the middle frame cross-section can be set according to actual needs, and no specific restrictions are imposed here.

[0051] 1012. And cut the aluminum extrusion profile to make the length of the aluminum extrusion profile reach the threshold.

[0052] The two ends of the aluminum extruded profile are cut to ensure that the length of the aluminum extruded profile is equal to the total side length of the middle frame when straightened. In other words, this threshold is the sum of the side lengths of the middle frame before bending. The specific value of this threshold can be set according to actual conditions and is not specifically limited here. By cutting the aluminum extruded profile before bending to achieve the threshold, a middle frame of the appropriate size can be obtained directly after bending, eliminating the need for further cutting of the bent aluminum extruded profile. This makes the cutting operation more convenient for operators and avoids the error problems caused by cutting after bending.

[0053] 102. A triangular hole is provided at a preset position on the aluminum extruded profile. The aluminum extruded profile includes a first sidewall, a second sidewall, and a third sidewall that surround the triangular hole, wherein the third sidewall is parallel to the long side of the aluminum extruded profile.

[0054] A triangular hole is formed by stamping at a predetermined position on the aluminum extruded profile. This triangular hole is formed by the first, second, and third sidewalls of the aluminum extruded profile, with the third sidewall parallel to the long side of the aluminum extruded profile. The third sidewall maintains a certain strength for the profile, facilitates handling during wire drawing and anodizing, and prevents deformation. At the same time, the third sidewall can provide a conductive hanging point for subsequent anodizing steps. After the workpiece is anodized, the connecting ribs are cut to form a V-shaped opening. The area near the two sides of the original triangular hole is the appearance surface, which is colored during anodizing. After bending, it ensures that there is no white showing on the exposed part of the joint, eliminating the need for a post-coloring process.

[0055] In some embodiments, the triangular hole is shaped as an isosceles triangle or an equilateral triangle, that is, the side lengths of the first sidewall and the second sidewall are equal, so that when the first sidewall and the second sidewall are bent and spliced ​​together at the triangular hole, a seamless splicing can be achieved without any step difference, and no further grinding or other processing is required.

[0056] The preset position is set along the length of the aluminum extrusion profile to divide the aluminum extrusion profile into several straight strips of a certain length.

[0057] The number of preset positions can be set according to the actual situation. Here, we take setting two preset positions as an example for explanation, and this should not be interpreted as a limitation. By setting two preset positions, the aluminum extruded profile is divided into three straight strips of a certain length. It can be understood that multiple preset positions can divide the aluminum extruded profile into multiple straight strips of the same length, or into multiple straight strips of different lengths. The specific settings can be made according to the actual shape of the middle frame, and no specific limitations are made here.

[0058] In some embodiments, triangular holes can be fabricated simultaneously at each preset position to quickly obtain multiple triangular holes and speed up the manufacturing process. In some embodiments, multiple triangular holes can also be fabricated separately at each preset position to improve the accuracy of each triangular hole.

[0059] 103. The aluminum extruded profile with triangular holes is drawn and oxidized to obtain an alumina profile.

[0060] The surface of the aluminum extruded profile is brushed;

[0061] The drawn aluminum extrusion profile is oxidized to obtain an alumina profile.

[0062] The oxidation treatment includes any one of anodizing, painting, or baking powder.

[0063] It should be noted that the anodized film thickness of the aluminum extruded profile should be 6µm to 10µm, and the anodized film at the bending angle should be continuously bonded with 3M tape for 5 times without falling off after bending at 90 degrees. This is to ensure that the aluminum anodized profile does not crack or only cracks slightly without affecting the appearance when bending.

[0064] In some embodiments, the oxidation process includes anodizing the drawn aluminum extrusion profile to obtain anodized aluminum profiles. Specific steps of the anodizing process can be found in [reference needed]. Figure 3 and Figure 4 , Figure 3 for Figure 1 The diagram shows the process of obtaining anodized aluminum in the fabrication of the middle frame. Figure 4 for Figure 3 The diagram illustrates the process for obtaining anodized aluminum profiles using the shown method. The specific steps are as follows:

[0065] 1031. Multiple drawn aluminum extrusion profiles are placed alternately on the hanger, and each drawn aluminum extrusion profile is parallel to the bottom surface of the tank.

[0066] A tank 300 is provided, and material for anodizing is placed in the tank 300. Then, multiple drawn aluminum extrusion profiles 100 are arranged alternately on the hanger 200, and each drawn aluminum extrusion profile 100 is parallel to the bottom surface of the tank 300. This allows more aluminum extrusion profiles 100 to be anodized at the same time, and also ensures that each aluminum extrusion profile 100 receives sufficient anodizing treatment.

[0067] 1032. Place multiple drawn aluminum extrusion profiles from the hanger into the tank so that multiple drawn aluminum extrusion profiles can be anodized simultaneously.

[0068] By performing anodizing treatment before bending, multiple aluminum extrusion profiles 100 can be loaded simultaneously in the same tank 300, thereby enabling multiple aluminum extrusion profiles 100 to undergo anodizing treatment at the same time, improving efficiency and reducing costs.

[0069] 104. Make an opening on the third side wall and connect the opening to the triangular hole.

[0070] The triangular hole 20 of the alumina mold 100 is punched to remove the third sidewall, and the opening is made to connect with the triangular hole to obtain an alumina mold 100 with a V-shaped opening 30. For further details, please refer to [link / reference needed]. Figure 5 , Figure 5 for Figure 1 The process flow diagram shown is for obtaining aluminum extruded profiles with V-shaped openings in the manufacturing method of the middle frame.

[0071] It should be noted that multiple triangular holes 20 can be punched simultaneously to obtain multiple V-shaped openings 30, or the triangular holes 20 can be punched sequentially to obtain multiple V-shaped openings 30. The specific settings can be adjusted according to the actual situation, and no specific restrictions are imposed here.

[0072] 105. For an alumina model with an opening, bend at the opening to obtain the middle frame.

[0073] This application uses an alumina mold with two V-shaped openings as an example for illustration. For details on the specific steps of bending the alumina mold with openings at the openings to obtain the middle frame, please refer to the following documentation. Figure 6 , Figure 6 for Figure 1 The diagram illustrates the process of bending the frame to create the middle frame. The specific process is as follows:

[0074] 1051. For an alumina mold with openings, bend the two openings toward the inside of the openings respectively, so that the first sidewall and the second sidewall of each opening are joined together.

[0075] The alumina mold is bent at the two V-shaped openings, with the bent parts facing the same side to form a three-sided frame shape, and the first and second sidewalls of each V-shaped opening are spliced ​​together.

[0076] 1052. Welding is performed at the joint between the first and second sidewalls of each opening.

[0077] The welded middle frame is inspected for appearance, dimensions, and weld strength. Qualified products are then packaged.

[0078] This application also provides a mid-frame for use in a display device. The mid-frame is manufactured using the method described in any of the above-mentioned mid-frame manufacturing methods, which will not be repeated here.

[0079] The manufacturing method of the middle frame and the middle frame provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A method for manufacturing a mid-frame, applied to a display device, characterized in that, The manufacturing method includes: Obtain aluminum extrusion profiles; A triangular hole is provided at a predetermined position on the aluminum extruded profile. The aluminum extruded profile includes a first sidewall, a second sidewall, and a third sidewall that surround the triangular hole, wherein the third sidewall is parallel to the long side of the aluminum extruded profile. The surface of the aluminum extruded profile is brushed. Multiple drawn aluminum extrusion profiles are arranged alternately on the hanger, and each drawn aluminum extrusion profile is parallel to the bottom surface of the tank. The multiple drawn aluminum extrusion profiles on the hanger are placed in the tank so that the multiple drawn aluminum extrusion profiles are anodized at the same time; An opening is made in the third sidewall, and the opening communicates with the triangular hole; The oxidized aluminum extrusion profile with an opening is bent at the opening to obtain a middle frame.

2. The manufacturing method according to claim 1, characterized in that, The process of obtaining aluminum extrusion profiles includes: Aluminum alloy sheet is placed in a stamping die and extruded to obtain aluminum extrusion profile; The aluminum extruded profile is then cut to ensure that its length reaches a threshold.

3. The manufacturing method according to claim 1, characterized in that, The provision of a triangular hole at a predetermined position on the aluminum extruded profile includes: A triangular hole is formed at a predetermined position on the aluminum extrusion profile by stamping.

4. The manufacturing method according to claim 1, characterized in that, The step of creating an opening on the third sidewall and communicating the opening with the triangular hole includes: The triangular hole of the oxidized aluminum extrusion profile is punched to remove the third sidewall, and the opening is made to communicate with the triangular hole to obtain an aluminum oxide profile with a V-shaped opening.

5. The manufacturing method according to claim 1, characterized in that, The oxidized aluminum extruded profile has two openings, and the step of bending the oxidized aluminum extruded profile with the openings at the openings to obtain the middle frame includes: The oxidized aluminum extrusion profile with openings is bent toward the inside of the openings at the two openings respectively, so that the first sidewall and the second sidewall of each opening are joined together. Welding is performed at the joint between the first and second sidewalls of each opening.

6. The manufacturing method according to claim 1, characterized in that, The triangular hole is shaped like an isosceles triangle or an equilateral triangle.

7. A mid-frame, used in a display device, characterized in that, The middle frame is manufactured using the method described in any one of claims 1 to 6.

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