Forming processing method for outer frame of liquid crystal display screen

Abstract

The invention discloses a liquid crystal display screen outer frame forming machining method, and relates to the technical field of liquid crystal display screen outer frame manufacturing, and the method comprises the following steps: S1, obtaining the size of a metal steel strip of a liquid crystal display screen outer frame; s2, preliminary cutting processing; s3, rolling forming is carried out; s4, carrying out crease-resistant leveling treatment; s5, re-cutting processing is carried out; s6, bending and shaping; s7, welding a bending gap; s8, polishing welding burrs; and S9, painting the outer frame. According to the forming machining method for the outer frame of the liquid crystal display screen, the outer frame of the liquid crystal display screen is subjected to forming machining through rolling equipment, after machining, side edge wrinkling and deformation of a blank piece of the rolled outer frame are prevented through anti-wrinkling and leveling, the outer frame of a rectangular structure is shaped through a bending assembly and a shaping assembly, and therefore the outer frame of the liquid crystal display screen is formed. The shaped outer frame has anti-deformation and reinforcing effects, and the effect of anti-deformation treatment during forming and processing of the outer frame of the liquid crystal display screen can be guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of manufacturing an outer frame of a liquid crystal display screen, in particular to a forming and processing method of an outer frame of a liquid crystal display screen. Background Art

[0002] The main function of the LCD screen frame is to provide stable support and protection to ensure that the LCD screen can work properly and extend its service life. It is usually made of metal or plastic materials, and has the characteristics of being strong, durable, and beautiful. It can be customized according to different LCD screen sizes and shapes.

[0003] The material and design of the outer frame of the LCD screen have an important impact on the stability and service life of the LCD screen. In the production process of LCD TVs, the thin LCD screen is covered by a metal outer frame to ensure the anti-bending function and stability of the LCD screen. The metal outer frames in the existing technology are all processed in batches by stamping.

[0004] According to a method for forming an outer frame of a liquid crystal display screen with publication number CN104139128A, the invention uses a long metal strip to form the outer frame of the liquid crystal display screen, which does not generate any waste of materials, and since each processing process does not generate waste, the production cost is greatly reduced;

[0005] When the above-mentioned technical scheme is used, the outer frame of the LCD display is processed by rolling forming equipment, cutting notches in the outer frame and then welding. These operations only complete the forming processing of the outer frame material. However, the outer frame material is prone to deformation during the forming process. This technical scheme does not solve the quality of the forming processing. Therefore, we propose a method for forming the outer frame of a LCD display. Summary of the invention

[0006] The purpose of the present invention is to provide a method for forming an outer frame of a liquid crystal display screen to solve the problems raised by the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a method for forming an outer frame of a liquid crystal display screen, comprising the following steps:

[0008] S1. Obtain the size of the metal steel strip of the outer frame of the liquid crystal display screen;

[0009] S2, preliminary cutting process;

[0010] S3, roll forming;

[0011] S4, anti-wrinkle and leveling treatment;

[0012] S5, re-cutting process;

[0013] S6, bending and shaping;

[0014] S7, bending gap welding;

[0015] S8, grinding of welding burrs;

[0016] S9. Paint the outer frame.

[0017] Preferably, in step S2, the outer frame of the liquid crystal display screen is initially cut by using a laser cutting machine to cut the metal steel strip in batches, and then a polishing machine is used to grind the entire metal steel strip into a blank.

[0018] Preferably, during roll forming, the metal steel strip in step S3 puts the polished blank into a special roll forming machine, supports the blank through a mold, and uses a rolling device to repeatedly roll the blank in the mold to roll-form the edges and corners of the blank.

[0019] Preferably, the anti-wrinkle and leveling treatment uses a press to level the side edges of the frame after rolling to eliminate wrinkles on the side surfaces of the outer frame.

[0020] Preferably, the re-cutting process uses a punching machine to drive a V-shaped cutter head at the output end to perform punching and cutting on the side wall of the outer frame, and the notch formed by punching the side wall of the outer frame constitutes the bending opening of the outer frame.

[0021] Preferably, the bending and shaping process uses a bending device to process the punched and cut outer frame into a rectangular shape, and then uses a fixture to press and flatten the four corners of the rectangular outer frame.

[0022] Preferably, the bending gap welding uses a welding machine to first perform spot welding on the four corners of the formed outer frame corner gaps, and then perform diagonal staggered welding on the spot welding positions.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: the outer frame forming processing method of the liquid crystal display screen uses a rolling device to form the outer frame of the liquid crystal display screen, and after processing, anti-wrinkle leveling is performed to prevent side wrinkles and deformation of the blank of the outer frame after rolling, and the rectangular structure outer frame is shaped by a bending component and a shaping component. The shaped outer frame has the function of anti-deformation reinforcement, which can ensure that the outer frame forming processing of the liquid crystal display screen has the effect of anti-deformation treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the process of the present invention;

[0025] Figure 2 It is a schematic diagram of the processing method of the present invention. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1 and Figure 2 The present invention provides a technical solution: a method for forming an outer frame of a liquid crystal display screen, comprising the following steps:

[0028] S1. Obtain the size of the metal steel strip of the outer frame of the liquid crystal display screen;

[0029] S2. Preliminary cutting and processing. For different types of LCD screens, the processing dimensions of metal steel strips with specific specifications are input into the CNC screen that controls the automatic operation of the laser cutting machine. The outer frame of the LCD screen uses the laser cutting machine to cut the metal steel strips in batches, and then uses a polishing machine to grind the entire metal steel strip into a blank, and clean the waste generated by grinding;

[0030] S3, rolling forming, putting the polished blank into a special rolling forming machine, supporting the blank through the mold, and repeatedly rolling the blank in the mold using the rolling equipment. During each rolling, the rolling equipment repeatedly rolls from one end of the blank to the other end, so that the edges and corners of the blank are rolled and formed;

[0031] S4, anti-wrinkle leveling treatment, using a press to level the side of the frame after rolling to eliminate wrinkles on the side of the outer frame;

[0032] S5, cutting again, using a punching machine to drive the V-shaped cutter head at the output end to punch and cut the side wall of the outer frame, the notch formed by the punching of the side wall of the outer frame constitutes the bending opening of the outer frame, and the angle of the bending opening is punched by changing the angle of the V-shaped cutter head;

[0033] S6, bending and shaping, the punched and cut outer frame is processed into a rectangular shape by a bending device, and then the four corners of the rectangular outer frame are pressed and flattened by a fixture to prevent warping and bulging on the four sides of the outer frame;

[0034] S7, bending gap welding, use a welding machine to first spot weld the four corners of the finalized outer frame corner gap, and then perform diagonal staggered welding at the spot welding position;

[0035] S8, grinding of welding burrs, grinding away welding burrs at the bending gap of the outer frame by a grinder, to ensure that the outer frame ensures the assembly safety of the LCD screen when in use;

[0036] S9. Paint the outer frame by spraying paint with a sprayer so that the surface of the outer frame is coated with an anti-corrosion and anti-rust coating.

[0037] In the specific implementation, the outer frame of the liquid crystal display screen is processed by batch cutting, and after its surface is treated, the blank of the outer frame is formed by rolling equipment. After processing, the blank of the outer frame is prevented from side wrinkles and deformation by anti-wrinkle leveling to ensure the quality of the outer frame after processing. Then, the side wall surface of the blank is stamped to produce bending cuts for the outer frame to be formed and bent. Then, the rectangular outer frame is shaped by bending components and shaping components. The shaped outer frame has the function of anti-deformation reinforcement. Then, the bending gap of the outer frame is welded by a welding machine. After welding, the outer frame is anti-rust and anti-corrosion by spraying paint.

[0038] The contents not described in detail in this specification belong to the prior art known to professionals in this field.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for forming an outer frame of a liquid crystal display screen, characterized in that: The following steps are involved: S1. Obtain the size of the metal steel strip of the outer frame of the liquid crystal display screen; S2, preliminary cutting process; S3, roll forming; S4, anti-wrinkle and leveling treatment; S5, re-cutting process; S6, bending and shaping; S7, bending gap welding; S8, grinding of welding burrs; S9. Paint the outer frame.

2. A method for forming an outer frame of a liquid crystal display screen according to claim 1, characterized in that: In step S2, the outer frame of the liquid crystal display screen is initially cut by using a laser cutting machine to cut the metal steel strip in batches, and then a polishing machine is used to grind the entire metal steel strip into a blank.

3. The method for forming an outer frame of a liquid crystal display screen according to claim 1, characterized in that: In step S3, the metal steel strip is placed into a special rolling forming machine after being polished during rolling forming, the blank is supported by a mold, and the blank in the mold is repeatedly rolled using a rolling device to roll the edges and corners of the blank.

4. The method for forming an outer frame of a liquid crystal display screen according to claim 1, characterized in that: The anti-wrinkle and leveling treatment uses a press machine to level the side edges of the frame after rolling, thereby eliminating wrinkles on the side faces of the outer frame.

5. The method for forming an outer frame of a liquid crystal display screen according to claim 1, characterized in that: The re-cutting process uses a punching machine to drive a V-shaped cutter head at the output end to perform punching and cutting on the side wall of the outer frame, and the notch formed by the punching of the side wall of the outer frame constitutes the bending opening of the outer frame.

6. The method for forming an outer frame of a liquid crystal display screen according to claim 1, characterized in that: The bending and shaping process processes the punched and cut outer frame into a rectangular shape through a bending device, and then uses a fixture to press and flatten the four corners of the rectangular outer frame.

7. The method for forming an outer frame of a liquid crystal display screen according to claim 1, characterized in that: The bending gap welding adopts a welding machine to first spot weld the four corners of the formed outer frame corner gap, and then perform diagonal staggered welding at the spot welding position.

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