CN-117289500-B - Sealing frame quality inspection device for liquid crystal display module production

Abstract

The invention belongs to the technical field of liquid crystal display modules, in particular to a sealing frame quality inspection device for liquid crystal display module production, aiming at the problems that the position of a sealing frame is easy to deviate and the sealing frame is easy to crack and burr are inspected in the background technology, the invention provides the following scheme. According to the invention, in the quality inspection auxiliary mechanism, the positioning of the sealing frame body is realized, the position deviation is prevented, meanwhile, convenience is provided for the subsequent dial indicator and the visual detector to detect the appearance of the sealing frame body, the problems of cracks, burrs and the like of the sealing frame body can be timely checked in the quality inspection mechanism, unqualified products are timely removed, and the high efficiency of the subsequent assembly of the liquid crystal display module is ensured.

Inventors

• ZHENG YUCHENG
• YANG FENGLONG

Assignees

• 深圳同兴达科技股份有限公司

Dates

Publication Date

20260505

Application Date

20230919

Claims (4)

1. 1. The sealing frame quality inspection device for the production of the liquid crystal display module comprises a bottom plate (1), and is characterized in that a quality inspection auxiliary mechanism (2) is arranged at the top of the bottom plate (1), and the quality inspection auxiliary mechanism (2) comprises a first air cylinder (21) arranged at the top of the bottom plate (1), a connecting plate (22) hinged to a piston rod of the first air cylinder (21), a first limiting plate (23) hinged to the outer wall of one end of the connecting plate (22) and a second limiting plate (24) hinged to the outer wall of the other end of the connecting plate (22); The quality inspection device is characterized in that a quality inspection mechanism (3) is arranged on the outer wall of the top of the bottom plate (1), the quality inspection mechanism (3) comprises a multi-axis robot (31) fixedly connected to the outer wall of the top of the bottom plate (1) through bolts, a dial indicator (32) connected to the outer wall of one end of the multi-axis robot (31), and a visual detector (33) connected to the outer wall of one side of the dial indicator (32), a side plate (4) is welded on the outer wall of the top of the bottom plate (1), a second cylinder (5) is fixedly connected to the inner wall of the top of the side plate (4) through bolts, and a piston rod of the second cylinder (5) is connected with a sealing detection cover (6); the center of the outer wall of the top of the seal detection cover (6) is connected with an air receiving head (7), and the air receiving head (7) can be connected with an air pump with an air pressure meter through an air pipe; the outer wall of the top of the bottom plate (1) is fixedly connected with a rotary air cylinder (8) through bolts, the output shaft of the rotary air cylinder (8) is connected with a partition plate (9), and the outer wall of the bottom of the first air cylinder (21) is hinged to the outer wall of the top of the partition plate (9); The top outer wall of the partition plate (9) is welded with a top plate (10), a connecting plate (22) is rotatably connected to the bottom outer wall of the top plate (10), and a first limiting plate (23) and a second limiting plate (24) are both slidably connected to the inner wall of the top plate (10); The sealing frame is characterized in that the sealing frame body (11) is arranged on the outer wall of the top plate (10), and the dial indicator (32) is tightly attached to the outer wall of the sealing frame body (11).
2. 2. The sealing frame quality inspection device for liquid crystal display module production according to claim 1, wherein symmetrically distributed positioning rods (12) are welded on the outer wall of the top of the sealing frame body (11), and the positioning rods (12) are slidably connected to the inner wall of the top of the side plate (4).
3. 3. The sealing frame quality inspection device for liquid crystal display module production according to claim 1, wherein a PLC control cabinet (13) is arranged on the outer wall of the top of the bottom plate (1), a quality inspection display (14) is arranged on one side of the PLC control cabinet (13), and the quality inspection display (14) is connected with the PLC control cabinet (13) through a signal line.
4. 4. A sealing frame quality inspection device for liquid crystal display module production according to claim 3, wherein the PLC control cabinet (13) is connected with the first cylinder (21), the multi-axis robot (31), the dial indicator (32), the visual detector (33), the second cylinder (5) and the rotary cylinder (8) through signal lines.

Description

Sealing frame quality inspection device for liquid crystal display module production Technical Field The invention relates to the technical field of liquid crystal display modules, in particular to a sealing frame quality inspection device for liquid crystal display module production. Background The liquid crystal display module refers to a generic term for modular components assembled by a liquid crystal display panel and related components such as a driving circuit, a backlight source, an integrated circuit, etc., and the structure of the modular components varies with different application objects of downstream products, but the difference is not great. With the development of touch technology, touch screens are becoming more and more popular in liquid crystal displays, particularly in medium and small-sized terminal products, and touch-control integrated liquid crystal display modules further comprise a touch screen. The lc module Jian Shandian is referred to as a panel + backlight assembly. The display part of the liquid crystal television is a liquid crystal module, which is located equivalent to a kinescope in a CRT. Other parts include power supply circuits, signal processing circuits, etc., and of course what is the housing. The module is mainly divided into a screen and a backlight assembly. The two parts are assembled together but are independent of each other (i.e., the circuits are not related) when operated. The principle of liquid crystal display is that the backlight assembly emits a uniform surface light, which is transmitted into our eyes through the liquid crystal panel. The effect of the screen is to process the light in pixels to display an image. Liquid crystal display modules are very common in real life, wherein a sealing frame as one of the constituent structures of the liquid crystal display module plays an important role in the module, but the sealing frame has the following defects in the quality inspection process: Firstly, the sealing frame is subjected to quality detection before the liquid crystal display module is assembled, and the tightness detection is usually carried out in a detection mode, but the position of the sealing frame is easy to deviate in the process of holding the sealing frame by a worker, so that the subsequent quality detection is difficult. Meanwhile, if the surface of the sealing frame has the problems of cracks, burrs and the like, the problems are difficult to directly observe by naked eyes, but the problems can affect the subsequent assembly of the liquid crystal display module if the problems cannot be examined. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a sealing frame quality inspection device for liquid crystal display module production, which overcomes the defects of the prior art and effectively solves the problems that the position of a sealing frame is easy to deviate and cracks and burrs of the sealing frame are very inspected. In order to achieve the above purpose, the present invention adopts the following technical scheme: The quality inspection device for the sealing frame for the production of the liquid crystal display module comprises a bottom plate, wherein a quality inspection auxiliary mechanism is arranged at the top of the bottom plate and comprises a first air cylinder arranged at the top of the bottom plate, a connecting plate hinged to a piston rod of the first air cylinder, a first limiting plate hinged to the outer wall of one end of the connecting plate and a second limiting plate hinged to the outer wall of the other end of the connecting plate; The utility model discloses a quality control mechanism, including the bottom plate top outer wall, the bottom plate top outer wall is provided with quality control mechanism, and quality control mechanism includes multiaxis robot through bolt fixed connection on bottom plate top outer wall, connects the amesdial on multiaxis robot one end outer wall, connects the visual detector on amesdial one side outer wall, bottom plate top outer wall welding has the curb plate, and curb plate top inner wall passes through bolt fixed connection has the second cylinder, the second cylinder piston rod is connected with sealed detection lid. Through foretell scheme, in quality control auxiliary mechanism, after the sealing frame body is placed on the roof, through the flexible of first cylinder telescopic link, can control the direction of connecting plate slope, the location to the sealing frame body has been realized, prevent that the deviation from appearing in the position, also can be for follow-up amesdial and visual detector detect the outward appearance of sealing frame body and provide convenience simultaneously, in quality control mechanism, on the basis that sealing detection lid inserts the gas tightness of air pump detection sealing frame body, utilize multiaxis robot adjustment amesdial and visual detector to detect its appearance quality