A liquid crystal screen adhesive strength testing device based on high temperature environment

Abstract

The utility model discloses a liquid crystal screen adhesive strength testing arrangement based on high temperature environment relates to liquid crystal screen production technical field. The utility model discloses a bottom plate and fixedly connected in the bottom plate upper surface both sides's two upright posts, and the upper portion of the adjacent between upright post is provided with adjusting assembly, and adjusting assembly includes the sliding block of sliding connection in the inside of sliding slot, and the adjacent between sliding block is provided with adjusting plate. The utility model discloses through the installation rod and the damping sheet to the inclination angle of adjusting plate is adjusted, and through adjusting plate and first sucking disc to the inclination angle of liquid crystal screen is adjusted, has solved the inconvenient problem of the adhesive strength of liquid crystal screen under different inclination angles to test to the present, and through the installation strip and third set of pole makes that the tension rod vertical adsorption is on the glass of liquid crystal screen, and through U type frame and counterweight to the glass of liquid crystal screen exert tension, has solved the inconvenient problem of the adhesive strength of liquid crystal screen under different external force to test to the present.

Description

Technical Field

[0001] This utility model belongs to the field of LCD screen manufacturing technology, and in particular relates to an LCD screen adhesive strength testing device based on a high-temperature environment. Background Technology

[0002] LCD screens are screens made of liquid crystal materials as basic components. The basic principle is to fill liquid crystal materials between two parallel plates and change the arrangement of molecules inside the liquid crystal materials by voltage to achieve the purpose of blocking and transmitting light, so as to display images of different shades and staggered patterns. In the production and manufacturing process of LCD screens, it is usually necessary to test their adhesive strength. To facilitate testing the adhesive strength of LCD screens, a testing device is typically used. This device places the LCD screen in a high-temperature test chamber, heats it for an extended period, and observes whether the glass detaches to determine the adhesive strength. Existing testing devices, often called placement racks, are primarily used to hold the LCD screen. However, these devices are not convenient for adjusting the tilt angle of the LCD screen, making it difficult to determine the adhesive strength at different tilt angles, resulting in poor testing accuracy. Furthermore, existing testing devices cannot easily apply external force to the LCD screen glass, making it difficult to test the tensile force the LCD screen can withstand under high temperatures. This limits the testing range and accuracy.

[0003] To address these issues, we provide a high-temperature environment-based LCD screen adhesive strength testing device. Utility Model Content

[0004] The purpose of this invention is to provide a liquid crystal display (LCD) screen adhesive strength testing device based on a high-temperature environment. The device adjusts the tilt angle of the adjustment plate using a mounting rod and damping plate, and further adjusts the tilt angle of the LCD screen using the adjustment plate and a first suction cup. This solves the problem of existing devices being inconvenient for testing the adhesive strength of the LCD screen at different tilt angles. Simultaneously, the installation strip and third set of rods allow the tension rod to be vertically attached to the glass of the LCD screen, and a U-shaped frame and counterweight apply tension to the glass of the LCD screen, thus solving the problem of existing devices being inconvenient for testing the adhesive strength of the LCD screen under different external forces.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a device for testing the adhesive strength of an LCD screen in a high-temperature environment. It includes a base plate and two columns fixedly connected to the upper surface of the base plate on both sides. A placement plate is movably connected to the lower outer wall of each column. A sliding groove is formed on the upper outer wall of each column. An adjustment component is set above the adjacent columns. The adjustment component includes a slider slidably connected inside the sliding groove. An adjustment plate is set between the adjacent sliders. A first suction cup for adsorbing the LCD screen is movably connected to each adjustment plate. Mounting rods are fixedly connected to the outer walls of both sides of the adjustment plate. The end of the mounting rod away from the adjustment plate passes through the slider and is threadedly connected to a damping plate. A tension component is set at the front end of the placement plate. The tension component includes a fixing rod fixedly connected to the front end of the placement plate. Multiple mounting strips are movably sleeved at equal intervals on the outer wall of the fixing rod. Multiple third rods are movably connected at equal intervals on the mounting strips. A tension rod is slidably sleeved inside the third rod. A second suction cup is movably connected to the top of the tension rod. A U-shaped frame is fixedly connected to the bottom end of the tension rod. A counterweight is clamped inside the U-shaped frame by a clamping plate.

[0006] A further feature of this invention is that: multiple mounting holes are equally spaced on the rear end face of the column; a sliding sleeve is movably fitted on the lower outer wall of the column; a placement plate is fixedly connected to the front end face of the sliding sleeve; and a fastening bolt is threadedly connected to the rear end face of the sliding sleeve, with one end of the fastening bolt threadedly connected to the inside of one of the mounting holes.

[0007] A further feature of this invention is that: a first sleeve rod extends through both sides of the end face of the placement plate, a movable rod is slidably sleeved inside the first sleeve rod, a first suction cup is fixedly connected to the front end of the movable rod, and a limit nut is threadedly connected to the rear end of the movable rod.

[0008] A further feature of this invention is that a second sleeve rod extends through the top of the inner side of the slide groove, the top end of the second sleeve rod extends to the upper outer side of the column and is fixedly connected to a first bevel gear, the inner thread of the second sleeve rod is connected to a first threaded rod, the bottom end of the first threaded rod extends to the inner side of the slide groove and is fixedly connected to the top of the slider, and the top end of the first threaded rod is fixedly connected to a limit plate.

[0009] A further feature of this invention is that a drive rod is rotatably connected to the upper part of one side of the outer wall of the column, a handwheel is fixedly connected to one end of the drive rod, and a second bevel gear is fixedly connected to the other end of the drive rod, with the second bevel gear meshing with one side of the first bevel gear.

[0010] A further feature of this invention is that a transmission rod is rotatably connected above adjacent columns, and a third bevel gear is fixedly connected to both ends of the transmission rod, with the third bevel gear meshing with the other side of the first bevel gear.

[0011] A further feature of this invention is that: all surfaces of the mounting strips are provided with through grooves, all third sleeve rods are located inside the through grooves, and connecting rods are fixedly connected to the outer walls of both sides of the third sleeve rods, with the ends of the connecting rods away from the third sleeve rods respectively fixedly connected to the inner walls of both sides of the through grooves.

[0012] The present invention is further configured such that: a second threaded rod is threadedly connected to the bottom of the U-shaped frame, a knob is fixedly connected to the bottom end of the second threaded rod, the top end of the second threaded rod extends to the inner side of the U-shaped frame and is fixedly connected to the center of the lower surface of the clamping plate, positioning posts are fixedly connected to the front and rear ends of the upper surface of the clamping plate, and positioning holes that cooperate with the positioning posts are opened at the front and rear ends of the surface of the counterweight.

[0013] This utility model has the following beneficial effects: This invention features an adjustment assembly. By loosening the damping plate, the damping plate is separated from the slider. An external force is applied to the adjustment plate, causing it to rotate around the axis of the mounting rod. When the adjustment plate rotates to a specified angle, the damping plate is tightened, ensuring it adheres tightly to the slider. This facilitates adjustment of the LCD screen's tilt angle and allows for testing of the adhesive strength of the LCD screen at different tilt angles.

[0014] This invention utilizes a tension component, selects a counterweight of a specified weight, and fixes the counterweight inside a U-shaped frame using a clamp. Then, the mounting strip is rotated to align with the LCD screen glass. The top of the tension rod is connected to the LCD screen glass via a second suction cup. External force is applied to the LCD screen glass through the tension rod, allowing for easy adjustment of the tension force and facilitating the testing of the LCD screen's adhesive strength under different tensions. This expands the testing range and improves practicality. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a structural disassembly diagram of the base plate and column of this utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the adjustment component of this utility model.

[0019] Figure 4 This is a structural disassembly diagram of the slider, the second sleeve rod, and the first threaded rod of this utility model.

[0020] Figure 5 This is a structural disassembly diagram of the adjustment plate of this utility model.

[0021] Figure 6 This is a schematic diagram of the tensile component of this utility model.

[0022] Figure 7 This is a structural disassembly diagram of the third set of rods and tension rods of this utility model.

[0023] Figure 8 This is a structural disassembly diagram of the U-shaped frame and counterweight of this utility model.

[0024] The attached diagram lists the components represented by each number as follows: 1-Base plate, 2-Column, 201-Mounting hole, 202-Slide groove, 3-Placement plate, 301-Sliding sleeve, 302-Fasting bolt, 4-Adjusting assembly, 401-Slider, 402-Adjusting plate, 402a-Mounting rod, 402b-Damping plate, 403-First suction cup, 403a-First sleeve rod, 403b-Moving rod, 403c-Limiting nut, 404-Second sleeve rod, 404a-First bevel gear, 405-First threaded rod, 405a-Limiting plate, 406- Drive rod, 406a-handwheel, 406b-second bevel gear, 407-transmission rod, 407a-third bevel gear, 5-tension assembly, 501-fixed rod, 502-mounting strip, 502a-through groove, 503-third sleeve rod, 503a-connecting rod, 504-tension rod, 505-second suction cup, 506-U-shaped frame, 506a-clamping plate, 506b-second threaded rod, 506c-knob, 506d-positioning post, 507-counterweight, 507a-positioning hole. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Example 1

[0026] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The first embodiment of this utility model is shown, which provides a liquid crystal screen adhesive strength testing device based on a high-temperature environment. It includes a base plate 1 and two columns 2 fixedly connected to both sides of the upper surface of the base plate 1. The lower outer wall of each column 2 is movably connected to a placement plate 3. The upper outer wall of each column 2 is provided with a sliding groove 202. An adjustment component 4 is provided above the adjacent columns 2. The adjustment component 4 includes a slider 401, an adjustment plate 402 and a first suction cup 403. The tilt angle of the adjustment plate 402 is adjusted by the mounting rod 402a and the damping plate 402b, and the tilt angle of the liquid crystal screen is adjusted by the adjustment plate 402 and the first suction cup 403. This solves the problem that it is not convenient to test the adhesive strength of the liquid crystal screen at different tilt angles in the existing devices.

[0027] Specifically, the slider 401 has two slide grooves 202 that are slidably connected to the two columns 2 respectively. An adjustment plate 402 is provided between adjacent sliders 401. Each adjustment plate 402 has a first suction cup 403 movably connected to it for adsorbing the LCD screen. Mounting rods 402a are fixedly connected to the outer walls of both sides of the adjustment plate 402. The end of the mounting rod 402a away from the adjustment plate 402 passes through the slider 401 and is threadedly connected to a damping plate 402b. The slider 401 is configured to drive the adjustment plates. 402 is raised and lowered to adjust the height of the adjustment plate 402. The adjustment plate 402 is used to fix the upper end of the LCD screen and drive the upper end of the LCD screen to rotate, thereby adjusting the tilt angle of the LCD screen. The mounting rod 402a and the damping plate 402b are used to movably mount the adjustment plate 402 on the slider 401 and adjust the tilt angle of the adjustment plate 402. The first suction cup 403 is a vacuum suction cup used to adsorb the upper end of the LCD screen onto the adjustment plate 402.

[0028] Furthermore, multiple mounting holes 201 are equally spaced on the rear end face of the column 2, and a sliding sleeve 301 is movably fitted on the lower part of the outer wall of the column 2. The placement plate 3 is fixedly connected to the front end face of the sliding sleeve 301, and a fastening bolt 302 is threadedly connected to the rear end face of the sliding sleeve 301. One end of the fastening bolt 302 is threadedly connected to the inside of one of the mounting holes 201. Both sides of the end face of the placement plate 3 are provided with a first sleeve rod 403a. The inside of the first sleeve rod 403a is a movable rod 403b that is slidably fitted. The first suction cups 403 are all fixedly connected to the front end of the movable rod 403b. The rear end of the movable rod 403b is threadedly connected to a limit nut 403c. The top of the inner side of the slide 202 is penetrated by a second sleeve rod 404. The top end of the second sleeve rod 404 extends to the upper outer side of the column 2 and is fixedly connected to a first bevel gear 404a. The inner thread of the second sleeve rod 404 is connected to a first threaded rod 405. The bottom end of the first threaded rod 405 extends to the inner side of the slide 202 and is fixedly connected to the top of the slider 401. The top end of the first threaded rod 405 is fixedly connected to a limit plate 405a. A drive rod 406 is rotatably connected to the upper part of one side of the outer wall of the column 2. A handwheel 406a is fixedly connected to one end of the drive rod 406, and a second bevel gear 406b is fixedly connected to the other end of the drive rod 406. The second bevel gear 406b meshes with one side of the first bevel gear 404a. A transmission rod 407 is rotatably connected above adjacent columns 2. Both ends of the transmission rod 407 are fixedly connected to a third bevel gear 407a, which meshes with the other side of the first bevel gear 404a.

[0029] The operation process of this embodiment is as follows: the lower end of the LCD screen is placed on the placement plate 3, and the upper end of the LCD screen is adsorbed onto the adjustment plate 402 by the first suction cup 403. Then, the damping plate 402b is loosened so that the damping plate 402b is separated from the slider 401, and an external force is applied to the adjustment plate 402 so that the adjustment plate 402 rotates around the axis of the mounting rod 402a. When the adjustment plate 402 rotates to the specified angle, the damping plate 402b is tightened so that the damping plate 402b is tightly attached to the slider 401, thereby realizing the adjustment of the tilt angle of the LCD screen. Example 2

[0030] Please see Figure 1 , Figure 6 , Figure 7 and Figure 8 As shown, this is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but differs from the previous embodiment in that: a tension component 5 is provided at the front end of the placement plate 3. The tension component 5 includes a fixing rod 501, an mounting strip 502, a third set of rods 503, a tension rod 504, a second suction cup 505, a U-shaped frame 506, and a counterweight 507. The mounting strip 502 and the third set of rods 503 make the tension rod 504 vertically adsorbed on the glass of the LCD screen, and the U-shaped frame 506 and the counterweight 507 apply tension to the glass of the LCD screen, thus solving the problem that it is inconvenient to test the adhesive strength of the LCD screen under different external forces.

[0031] Specifically, the fixing rod 501 is fixedly connected to the front end of the placement plate 3. Multiple mounting strips 502 are movably sleeved at equal intervals on the outer wall of the fixing rod 501. Multiple third rods 503 are movably connected at equal intervals on the mounting strips 502. A tension rod 504 is slidably sleeved inside the third rod 503. A second suction cup 505 is movably connected to the top of the tension rod 504. A U-shaped frame 506 is fixedly connected to the bottom of the tension rod 504. A counterweight 507 is clamped inside the U-shaped frame 506 via a clamping plate 506a. The fixing rod 501 is used for... The mounting strip 502 is used to install the third rod 503. The third rod 503 is used to install the tension rod 504 on the mounting strip 502. The tension rod 504 is used to apply tension to the glass of the LCD screen. The second suction cup 505 is used to attach the top of the tension rod 504 to the glass of the LCD screen. The U-shaped frame 506 is used to install the counterweight 507 on the tension rod 504. The counterweight 507 is used to adjust the tension of the tension rod 504.

[0032] Furthermore, each of the mounting strips 502 has a through groove 502a, and the third sleeve rods 503 are all located inside the through groove 502a. Each of the two outer walls of the third sleeve rods 503 is fixedly connected to a connecting rod 503a, and the end of the connecting rod 503a away from the third sleeve rod 503 is fixedly connected to the inner walls of the two sides of the through groove 502a respectively. The bottom of the U-shaped frame 506 is threaded with a second threaded rod 506b. The bottom end of the second threaded rod 506b is fixedly connected with a knob 506c. The top end of the second threaded rod 506b extends to the inside of the U-shaped frame 506 and is fixedly connected to the center of the lower surface of the clamping plate 506a. The front and rear ends of the upper surface of the clamping plate 506a are fixedly connected with positioning posts 506d. The front and rear ends of the surface of the counterweight 507 are provided with positioning holes 507a that cooperate with the positioning posts 506d.

[0033] The rest of the structure is the same as in Example 1.

[0034] The operation process of this embodiment is as follows: Select a counterweight 507 of a specified weight and fix the counterweight 507 inside the U-shaped frame 506 through the clamp 506a. Then rotate the mounting strip 502 so that the mounting strip 502 is parallel to the glass of the LCD screen. Connect the top of the tension rod 504 to the glass of the LCD screen through the second suction cup 505. Apply external force to the glass of the LCD screen through the tension rod 504 to achieve the test of the adhesive strength of the LCD screen under different tensions.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A liquid crystal screen adhesive strength testing device based on a high-temperature environment, comprising a base plate (1) and two columns (2) fixedly connected to both sides of the upper surface of the base plate (1), characterized in that: Each of the columns (2) has a placement plate (3) movably connected to its lower outer wall, and a sliding groove (202) is provided on the upper outer wall of each column (2). An adjustment assembly (4) is provided above each adjacent column (2), and the adjustment assembly (4) includes a slider (401) slidably connected inside the sliding groove (202). An adjustment plate (402) is provided between each adjacent slider (401), and a first suction cup (403) for adsorbing the LCD screen is movably connected to each adjustment plate (402). An installation rod (402a) is fixedly connected to each of the two outer walls of the adjustment plate (402), and one end of the installation rod (402a) away from the adjustment plate (402) passes through the slider (401) and is threadedly connected to a damping plate (402a). 402b), the front end of the placement plate (3) is provided with a tension component (5), and the tension component (5) includes a fixed rod (501) fixedly connected to the front end of the placement plate (3). Multiple mounting strips (502) are movably sleeved at equal intervals on the outer wall of the fixed rod (501), and multiple third rods (503) are movably connected at equal intervals on the mounting strips (502). A tension rod (504) is slidably sleeved inside the third rod (503), and a second suction cup (505) is movably connected to the top end of the tension rod (504). A U-shaped frame (506) is fixedly connected to the bottom end of the tension rod (504), and a counterweight (507) is clamped inside the U-shaped frame (506) through a clamping plate (506a).

2. The liquid crystal screen adhesive strength testing device based on a high-temperature environment according to claim 1, characterized in that, The column (2) has multiple mounting holes (201) at equal intervals on its rear end face, and a sliding sleeve (301) is movably fitted on the lower part of the outer wall of the column (2). The placement plate (3) is fixedly connected to the front end face of the sliding sleeve (301), and a fastening bolt (302) is threadedly connected to the rear end face of the sliding sleeve (301). One end of the fastening bolt (302) is threadedly connected to the inside of one of the mounting holes (201).

3. The liquid crystal screen adhesive strength testing device based on a high-temperature environment according to claim 1, characterized in that, The first sleeve rod (403a) is passed through both sides of the end face of the placement plate (3), and the movable rod (403b) is slidably sleeved inside the first sleeve rod (403a). The first suction cup (403) is fixedly connected to the front end of the movable rod (403b), and the rear end of the movable rod (403b) is threadedly connected to the limit nut (403c).

4. The liquid crystal screen adhesive strength testing device based on a high-temperature environment according to claim 1, characterized in that, The inner top of the slide groove (202) is penetrated by a second sleeve rod (404), and the top end of the second sleeve rod (404) extends to the upper outer side of the column (2) and is fixedly connected to a first bevel gear (404a). The inner thread of the second sleeve rod (404) is connected to a first threaded rod (405), and the bottom end of the first threaded rod (405) extends to the inner side of the slide groove (202) and is fixedly connected to the top of the slider (401). The top end of the first threaded rod (405) is fixedly connected to a limit plate (405a).

5. The liquid crystal screen adhesive strength testing device based on a high-temperature environment according to claim 4, characterized in that, A drive rod (406) is rotatably connected to the upper side of one outer wall of the column (2), and a handwheel (406a) is fixedly connected to one end of the drive rod (406), and a second bevel gear (406b) is fixedly connected to the other end of the drive rod (406), and the second bevel gear (406b) meshes with one side of the first bevel gear (404a).

6. The liquid crystal screen adhesive strength testing device based on a high-temperature environment according to claim 4, characterized in that, The upper part of the adjacent columns (2) is rotatably connected to a transmission rod (407), and both ends of the transmission rod (407) are fixedly connected to a third bevel gear (407a), which meshes with the other side of the first bevel gear (404a).

7. The liquid crystal screen adhesive strength testing device based on a high-temperature environment according to claim 1, characterized in that, The surface of each mounting strip (502) is provided with a through groove (502a), and the third sleeve rod (503) is located inside the through groove (502a). Connecting rods (503a) are fixedly connected to the outer walls on both sides of the third sleeve rod (503), and the end of the connecting rod (503a) away from the third sleeve rod (503) is fixedly connected to the inner walls on both sides of the through groove (502a).

8. The liquid crystal screen adhesive strength testing device based on a high-temperature environment according to claim 1, characterized in that, The bottom of the U-shaped frame (506) is threaded with a second threaded rod (506b), and the bottom end of the second threaded rod (506b) is fixedly connected with a knob (506c). The top end of the second threaded rod (506b) extends to the inside of the U-shaped frame (506) and is fixedly connected to the center of the lower surface of the clamping plate (506a). The front and rear ends of the upper surface of the clamping plate (506a) are fixedly connected with positioning posts (506d). The front and rear ends of the surface of the counterweight (507) are provided with positioning holes (507a) that cooperate with the positioning posts (506d).

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