Detection box for liquid crystal display screen production

Abstract

The utility model relates to the technical field of detection devices, and provides a detection box for liquid crystal display screen production, which comprises a box body, a first conveying mechanism and a detection mechanism, the two ends of the first conveying mechanism penetrate out of the inlets and outlets in the two sides of the box body. The detection mechanism comprises a first cylinder, a lifting frame and a detection head; opening and closing plates are arranged at the bottoms of the two sides of the lifting frame and can close the inlet and outlet of the box body, roller frames are connected to the bottoms of the opening and closing plates, and cleaning rollers are installed on the roller frames; through the arrangement of the opening and closing plate and the cleaning roller, the inlet and outlet of the box body can be closed, external dust and impurities are prevented from entering the box body to influence the detection work during detection, and meanwhile, the surface of the display screen is cleaned through the cleaning roller.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection device technical field, especially relate to a detection box for liquid crystal display screen production. BACKGROUND

[0002] The display screen needs to be detected after production, for example, measuring screen luminous intensity and the brightness consistency of different areas, ensuring that the full screen display has no obvious dark area or bright spot, checking whether the display screen surface has scratches, bubbles and bright spots and other physical defects, etc., to ensure the quality of display screen production.

[0003] CN221225219U discloses a dust-free detection bin for liquid crystal display screen production, including base, the middle part on the base is equipped with detection box, sealing plate is installed at one side of detection box, and the lower side of sealing plate is connected with lifting hydraulic cylinder, dust suction fan is installed at one side outside detection box, dust suction fan is connected with dust storage tank below, water storage tank is installed at the other side outside detection box, and lifting pump is installed above water storage tank, nut seat is installed in the inside of lifting plate, and detection head is installed below nut seat.

[0004] CN117170129A discloses a positioning accurate liquid crystal display screen detection device, including liquid crystal display screen detection placement table, and liquid crystal display screen positioning mechanism on the liquid crystal display screen detection placement table, and liquid crystal display screen detection area installed on the right side of liquid crystal display screen detection placement table, liquid crystal display screen positioning mechanism includes origin positioning assembly arranged on the top of liquid crystal display screen detection placement table, and center point positioning assembly installed on the top of origin positioning assembly, and display screen conveying assembly is arranged between origin positioning assembly and liquid crystal display screen detection placement table. The positioning accurate liquid crystal display screen detection device can quickly position liquid crystal display screens of different sizes through the liquid crystal display screen positioning mechanism. When the liquid crystal display screen is placed, one of the corners abuts against the inner corner of the diagonal moving frame, and the display screen is pushed to the position of the display screen positioning frame through the action of the clamping screw rod and the self-locking screw rod.

[0005] In the prior art, the detection of the liquid crystal display screen needs to ensure a dust-free environment, otherwise it may affect the detection effect of the display screen. The existing detection device usually sets up a dust suction fan for continuous dust suction work, which can avoid the influence of dust and impurities on the display screen detection during the detection of the display screen. However, the continuous suction work of the fan not only easily causes the display screen to deviate during detection, but also has high energy consumption and cost. UTILITY MODEL CONTENTS

[0006] In the prior art, the detection of the liquid crystal display screen needs to ensure a dust-free environment, otherwise the detection effect of the display screen can be affected; the existing detection device usually sets a dust suction fan to continuously perform dust suction work, which can ensure that the influence of dust and impurities on the detection of the display screen is avoided during the detection of the display screen, but the continuous suction work of the fan not only easily causes the display screen to be deviated during the detection, but also has high energy consumption and cost. In addition, the existing detection equipment is prone to inaccurate detection during the detection of the display screen, for example, when a defective product is detected, the detection needs to be re-performed to avoid misjudgment, and the display screen is usually manually taken back for detection, which is time-consuming and laborious.

[0007] Therefore, the utility model aims at providing a detection box for liquid crystal display screen production, in the utility model, the detection box includes a box body, a first conveying mechanism and a detection mechanism arranged in the box body;

[0008] Two sides of the box body are provided with inlets and outlets, and two ends of the first conveying mechanism pass through the inlets and outlets on the two sides of the box body.

[0009] The bottom of the lifting frame is provided with an opening and closing plate, the opening and closing plate can close the inlets and outlets of the box body, the bottom of the opening and closing plate is connected with a roller frame, and a cleaning roller is arranged on the roller frame.

[0010] A dust suction mechanism is further arranged in the box body, before each use of the box body, the dust suction mechanism is started to perform dust suction on the inside of the box body, and the first conveying mechanism is started to clean the conveying belt of the first conveying mechanism; after cleaning, the display screen is conveyed for detection; and the inside of the box body or the display screen is prevented from being polluted by dust adsorbed thereon.

[0011] Further, an elastic member is arranged between the roller frame and the opening and closing plate.

[0012] Further, a light supplementing lamp is arranged on one side of the detection head at the bottom of the lifting frame.

[0013] Further, a second conveying mechanism is further arranged in the box body, the second conveying mechanism is located at the bottom of the first conveying mechanism, and the conveying direction of the second conveying mechanism is opposite to the conveying direction of the first conveying mechanism.

[0014] The second cylinder is arranged in the box body and connected with the second conveying mechanism to control the lifting movement of the second conveying mechanism.

[0015] Further, the first conveying mechanism is provided with a position sensor for detecting the position of the second conveying mechanism.

[0016] Further, when the second conveying mechanism is started, the first conveying mechanism stops conveying.

[0017] The utility model discloses a detection box for liquid crystal display screen production, through the setting of the opening and closing plate and the cleaning roller, when detecting, the opening and closing plate closes the import and export of the box body along with the detection head descending, can isolate the inside and outside of the box body when detecting, avoids the dust impurity of outside when detecting to enter the inside of the box body and influences the detection work, simultaneously, the cleaning roller along with the opening and closing plate drops to the display screen on the first conveying mechanism and contacts when detecting, along with the conveying of the first conveying mechanism, the cleaning roller rolls and cleans the display screen surface, removes the dust impurity that adsorbed on the display screen surface, can improve the accuracy of display screen detection.

[0018] In addition, through the setting of the second cylinder and the second conveying mechanism, secondary detection can be automatically carried out in the detection box, without manual carrying after discharging, and the detection efficiency is high and the work is convenient

[0019] Other features and advantages of the utility model will be described in detail in the following specific embodiment part. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments illustrated in the drawings are provided to explain embodiments of the present application and not to limit the present application. In the drawings:

[0021] Figure 1 It is a structural schematic diagram of one embodiment of the utility model;

[0022] Figure 2 It is a top view schematic diagram of the first conveying mechanism in one embodiment of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the second conveying mechanism in one embodiment of the utility model.

[0024] Explanation of reference signs:

[0025] 1, box; 101, import and export; 2, first conveying mechanism; 3, second conveying mechanism; 4, first cylinder; 5, lifting frame; 6, detection head; 7, on-off plate; 8, cleaning roller; 9, second cylinder. DETAILED DESCRIPTION

[0026] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.

[0027] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should fall within the scope of protection of the present application.

[0028] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices; "fixed" or "fixedly connected" generally refers to common mechanical connection methods, such as threaded connection, welding or bonding, etc.

[0029] In the prior art, the detection of liquid crystal display screens requires a dust-free environment, otherwise it may affect the detection effect of the display screen; the existing detection device usually sets up a dust suction fan to continuously perform dust suction work, which can avoid the influence of dust and impurities on the detection of the display screen during detection, but the continuous suction work of the fan not only easily causes the display screen to deviate during detection, but also has high energy consumption and cost. In addition, the existing detection equipment may not be accurate during detection of the display screen, for example, when detecting a defective product, it needs to be re-detected to avoid misjudgment, and the display screen is usually manually retrieved for detection, which is time-consuming and laborious.

[0030] The utility model provides a kind of detection box for liquid crystal display screen production, such as Figure 1As shown, in the embodiment, the detection box comprises a box body 1, a first conveying mechanism 2 and a detection mechanism arranged in the box body 1; the box body 1 is provided with an inlet and outlet 101 on both sides for the display screen to enter and exit, and the two ends of the first conveying mechanism 2 pass through the inlet and outlet 101 on both sides of the box body 1, one side is used for placing the display screen to enter the box body 1, and the other side is used for the display screen to exit after detection; the detection mechanism comprises a first cylinder 4, a lifting frame 5 and a detection head 6, the first cylinder 4 is installed on the inner top of the box body 1, the lifting frame 5 is arranged in the box body 1 and is in sliding connection with the inner side wall of the box body 1, a sliding rail is arranged on the inner side wall of the box body 1 for the side part of the lifting frame 5 to be embedded, so as to ensure the stability of the movement of the lifting frame 5 in the box body 1; the piston rod of the first cylinder 4 is connected with the top of the lifting frame 5 to control the lifting movement of the lifting frame 5 in the box body 1, and the detection head 6 is detachably installed on the bottom of the lifting frame 5 for detection work and can be replaced; when the detection mechanism performs detection work, the lifting frame 5 is driven to descend by the first cylinder 4, and the detection head 6 is driven to approach the display screen on the first conveying mechanism 2, and the display screen is detected from right to left along with the conveying of the display screen by the first conveying mechanism 2.

[0031] In the embodiment, the opening and closing plate 7 is arranged on the bottom of both sides of the lifting frame 5, the opening and closing plate 7 can close the inlet and outlet 101 of the box body 1, one side of the opening and closing plate 7 is in contact with the inner side of the box body 1 and can be lifted in the box body 1 along with the movement of the lifting frame 5; when the lifting frame 5 rises, the opening and closing plate 7 moves upward, at this time, the inlet and outlet 101 of the box body 1 are opened, and the lifting frame 5 descends, that is, when the detection head 6 needs to perform detection work, the opening and closing plate 7 descends to close the inlet and outlet 101, so that the dust and impurities outside can be prevented from entering the box body 1; a roller frame is connected to the bottom of the opening and closing plate 7, a cleaning roller 8 is installed on the roller frame, and the cleaning roller 8 is installed on the bottom of the opening and closing plate 7 through the roller frame; when the opening and closing plate 7 descends to close the inlet and outlet 101, the cleaning roller 8 descends along with the opening and closing plate 7 to contact the surface of the display screen on the first conveying mechanism 2 to clean the surface of the display screen, so that the impurities adsorbed on the surface of the display screen are removed; the cleaning roller 8 can be an adsorption roller or a bristle roller, the adsorption roller adsorbs the dust on the display screen and sticks the dust to the adsorption roller through contact with the display screen, and the bristle roller removes the dust and impurities on the surface of the display screen through the bristles.

[0032] The utility model discloses a setting of opening and closing plate 7 and cleaning roller 8, when detecting, opening and closing plate 7 closes the import and export 101 of box 1 with the detection head 6 descending, can insulate inside and outside box 1 when detecting, avoids the dust impurity of outside when detecting to enter the inside influence detection work of box 1, and need not set up independent drive mechanism to opening and closing plate 7, and control is convenient, simultaneously, when detecting, cleaning roller 8 is descended with opening and closing plate 7 and contacts the display screen on first conveying mechanism 2 together, with the conveying of first conveying mechanism 2, cleaning roller 8 rolls and cleans the display screen surface, removes the dust impurity that adsorbed on the display screen surface, can improve the accuracy of display screen detection, compared with prior art, need not set up the fan that works continuously and carries out dust removal, saves energy and cost, avoids the phenomenon that display screen deviates due to fan adsorption force.

[0033] It should be noted that, in order to avoid the dust in the box 1 inside setting influences detection work, in other embodiments, the dust collection mechanism is arranged in the box 1, before each use of the box 1, the dust collection mechanism is started to clean the inside of the box 1, and the first conveying mechanism 2 is started to clean the conveying belt of the first conveying mechanism 2; After cleaning, the display screen is transported for detection; Avoiding the dust adsorbed in the box 1 or on the display screen pollutes the display screen.

[0034] In order to clean the impurities on the display screen when the cleaning roller 8 contacts the display screen without damaging the display screen, a resilient member is arranged between the roller frame and the opening and closing plate 7, which can be a spring; Provide a flexible lifting distance, so that the cleaning roller 8 can adhere to the surface of the display screen, improve the stability of cleaning the display screen.

[0035] In order to improve the accuracy of detection on the display screen, a fill light is arranged at the bottom of the lifting frame 5, which is located on one side of the detection head 6, to improve the illumination intensity of the display screen and improve the accuracy of detection.

[0036] In order to return to the detection again for the display screen with uncertain detection, the second conveying mechanism 3 is arranged in the box 1, the second conveying mechanism 3 is located at the bottom of the first conveying mechanism 2, the conveying direction of the second conveying mechanism 3 is opposite to the conveying direction of the first conveying mechanism 2, that is, the first conveying mechanism 2 conveys from the feeding port to the discharging port of the box 1, and the second conveying mechanism 3 conveys from the discharging port to the feeding port of the box 1; the second cylinder 9 is arranged at the inner bottom of the box 1, the second conveying mechanism 3 is arranged at the upper end of the second cylinder 9, the piston rod of the second cylinder 9 is connected with the second conveying mechanism 3, the second cylinder 9 controls the lifting movement of the second conveying mechanism 3, and the second conveying mechanism 3 can be driven to move to the upper end of the first conveying mechanism 2, that is, when the second conveying mechanism 3 rises, the display screen on the first conveying mechanism 2 is lifted to be supported and conveyed by the second conveying mechanism 3; the lifting groove is arranged in the middle of the conveying belt of the first conveying mechanism 2, and when the second conveying mechanism 3 rises, the second conveying mechanism 3 can pass through the lifting groove to the upper end of the first conveying mechanism 2.

[0037] When the display screen on the first conveying mechanism 2 is detected to be uncertain or have defects by the detection head 6, the first conveying mechanism 2 stops conveying, the second cylinder 9 drives the second conveying mechanism 3 to rise, the display screen on the first conveying mechanism 2 is lifted, the display screen is supported by the second conveying mechanism 3, the second conveying mechanism 3 is started, the display screen is conveyed to the feeding port direction, the display screen stops conveying after being conveyed to the position close to the feeding port, then the second cylinder 9 drives the second conveying mechanism 3 to descend again, the display screen returns to the first conveying mechanism 2, the first conveying mechanism 2 is started again to convey, and the display screen is detected again by the detection head 6; the display screen can be directly detected again in the detection box, manual conveying after discharging is not needed, the detection efficiency is high, and the work is convenient.

[0038] In the embodiment, the first cleaning mechanism and the second cleaning mechanism are both arranged as a support frame, two conveying rollers rotatably arranged on the support frame, a driving motor for driving the conveying rollers to rotate, and a conveying belt tautly arranged on the two conveying rollers, and the display screen is placed on the conveying belt to be conveyed.

[0039] In order to realize automatic control, the position sensor is arranged on the first conveying mechanism 2, the position sensor is used for detecting the position of the second conveying mechanism 3, and is specifically used for detecting whether the second conveying mechanism 3 enters the lifting groove; when the second conveying mechanism 3 is started, the first conveying mechanism 2 stops conveying; when the second conveying mechanism 3 stops conveying, the first conveying mechanism 2 is started; the movement of the first conveying mechanism 2 and the second conveying mechanism 3 can be avoided from interfering with each other; specifically, when the position sensor detects that the second conveying mechanism 3 rises to enter the lifting groove, the first conveying mechanism 2 stops conveying, and the second conveying mechanism 3 is started; when the position sensor detects that the second conveying mechanism 3 descends to be separated from the lifting groove, the first conveying mechanism 2 starts to convey.

[0040] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A testing box for LCD screen manufacturing, characterized in that, It includes a housing (1), a first conveying mechanism (2), and a detection mechanism located inside the housing (1); The box (1) has inlet and outlet (101) on both sides, and the two ends of the first conveying mechanism (2) pass through the inlet and outlet (101) on both sides of the box (1); the detection mechanism includes a first cylinder (4), a lifting frame (5) and a detection head (6); the first cylinder (4) is installed on the inner top of the box (1), the lifting frame (5) is set inside the box (1) and slidably connected to the inner side wall of the box (1), the first cylinder (4) is connected to the lifting frame (5) to control the lifting and moving of the lifting frame (5), and the detection head (6) is installed at the bottom of the lifting frame (5) for detection work; The bottom of both sides of the lifting frame (5) is provided with opening and closing plates (7), which can close the inlet and outlet (101) of the box (1). The bottom of the opening and closing plate (7) is connected to a roller frame, and a cleaning roller (8) is installed on the roller frame.

2. The testing box for liquid crystal display production according to claim 1, characterized in that, An elastic element is provided between the roller frame and the opening and closing plate (7).

3. The testing box for liquid crystal display production according to claim 1, characterized in that, The bottom of the lifting frame (5) is provided with a supplementary light on one side of the detection head (6).

4. The testing box for liquid crystal display production according to any one of claims 1-3, characterized in that, The box (1) is also provided with a second conveying mechanism (3), which is located at the bottom of the first conveying mechanism (2). The conveying direction of the second conveying mechanism (3) is opposite to that of the first conveying mechanism (2). The housing (1) is equipped with a second cylinder (9), which is connected to the second conveying mechanism (3) to control the lifting and moving of the second conveying mechanism (3); the conveyor belt of the first conveying mechanism (2) has a lifting groove in the middle, through which the second conveying mechanism (3) passes.

5. The testing box for liquid crystal display production according to claim 4, characterized in that, A position sensor is provided on the first conveying mechanism (2), and the position sensor is used to detect the position of the second conveying mechanism (3).

6. The testing box for liquid crystal display production according to claim 4, characterized in that, When the second conveying mechanism (3) is started, the first conveying mechanism (2) stops conveying.

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