Flexible clamping anti-scraping structure for liquid crystal display screen detection

Abstract

The utility model discloses a flexible clamping anti-scratch structure for detecting a liquid crystal display screen, which comprises an electric screw rod frame, an adapting mechanism and an anti-scratch mechanism, the adapting mechanism is arranged at the top of the electric screw rod frame, and the anti-scratch mechanism is arranged on the inner side of the adapting mechanism. The electric lead screw frame is of an existing lead screw transmission structure controlled by a PLC and electrically driven and can drive the guide sliding block to move on the surface of the electric lead screw frame in a threaded mode, and the clamping hydraulic cylinder can adapt to the appearance size of the liquid crystal display screen along with movement of the guide sliding block. A clamping hydraulic cylinder can adjust the height of a clamping hydraulic rod through PLC control and electric drive hydraulic pressure, so that the height of the clamping hydraulic rod is adjusted, the clamping hydraulic rod drives the clamping plates at the top and the bottom to be close to and away from each other, and the distance between the clamping plates is changed; therefore, the distance between the inner sides of the flexible belts on the surface can be changed.

Description

Technical Field

[0001] This utility model relates to liquid crystal display screen detection and clamping technology, and more particularly to a flexible clamping and scratch-resistant structure for liquid crystal display screen detection. Background Technology

[0002] As is well known, LCD screens require stable clamping during testing. Flexible clamping anti-scratch structures are devices used in this scenario. They are designed with clamping components made of flexible materials, which can be adapted to different sizes of screens during testing. They achieve stable clamping through flexible contact, avoiding scratch damage to the screen surface caused by traditional hard clamping. This provides reliable clamping protection for screen testing and ensures that the screen's appearance and performance are not affected by the clamping operation during testing.

[0003] However, traditional testing clamps are mostly fixed in one place, and their height and angle are mostly fixed. They cannot be adjusted according to the needs, and cannot be flipped to perform multi-angle testing when testing the display screen, resulting in a relatively single testing angle. Moreover, traditional LCD screens need to be removed from the clamp after testing, and cannot be moved directly for loading and unloading, resulting in low efficiency of the testing process. Therefore, this application proposes a clamping device for testing LCD screens to solve this problem.

[0004] An existing patent (publication number: CN219065919U) discloses a clamping device for testing liquid crystal displays, including a clamping frame, a support frame on the back of the clamping frame, a first sliding groove on the front of the support frame, a first damping slider movably sleeved inside the first sliding groove, a stepper motor inside the first damping slider, the stepper motor being connected to the rotating shaft of the clamping frame, a first telescopic rod at the bottom of the support frame, the first telescopic rod being bolted to the first damping slider, a moving platform on the back of the support frame, a moving groove on the outer side of the moving platform, a gear set inside the moving groove, a transmission chain sleeved on the outer side of the gear set, and several moving blocks on the outer side of the transmission chain. This invention uses the first telescopic rod to drive the clamping frame to move up and down, the stepper motor to drive the clamping frame to rotate, and the transmission chain to drive the clamping frame to move and transport automatically. It not only has the effects of automatic height adjustment and automatic rotation, but also has the characteristics of automatic feeding and unloading.

[0005] To address the aforementioned issues, existing patents have provided solutions. However, due to the lack of an adaptive anti-scratch structure when clamping the surface of an LCD screen, adaptive anti-scratch treatment cannot be performed when clamping the LCD screen surface, thus reducing the safety and flexibility when clamping the LCD screen surface. Summary of the Invention

[0006] The main purpose of this utility model is to provide a flexible clamping anti-scratch structure for LCD screen testing, which aims to solve the problem that due to the lack of an adaptive adjustment anti-scratch structure, it is impossible to perform adaptive adjustment anti-scratch treatment when clamping the surface of the LCD screen, thus reducing the safety and flexibility when clamping the surface of the LCD screen.

[0007] To achieve the above objectives, this utility model proposes a flexible clamping anti-scratch structure for testing liquid crystal displays, comprising an electric lead screw frame, an adaptation mechanism, and an anti-scratch mechanism. The adaptation mechanism is located on the top of the electric lead screw frame, and the anti-scratch mechanism is located inside the adaptation mechanism.

[0008] The adaptation mechanism includes a guide slider, a clamping hydraulic cylinder, a clamping hydraulic rod, a clamping plate, and a flexible belt. The guide slider is threadedly connected to the top of the electric screw frame. The clamping hydraulic cylinder is fixedly connected to the top of the guide slider. The bottom of the clamping hydraulic cylinder is movably connected to the top of the electric screw frame. The clamping hydraulic rod is slidably connected to the top of the inner side of the clamping hydraulic cylinder. Two clamping plates are fixedly connected to the surface of the clamping hydraulic cylinder and the top of the clamping hydraulic rod, respectively. The flexible belt is sleeved on the surface of the clamping plate.

[0009] Preferably, the anti-scratch mechanism includes a dirt removal component and a concentrating component. The dirt removal component is disposed on the surface of the clamping plate, and the concentrating component is disposed on the side of the dirt removal component away from the flexible belt.

[0010] Preferably, the impurity removal assembly includes a top adsorption tube, a bottom adsorption tube, and a diversion box. The bottom of the top adsorption tube passes through the top of the clamping plate and the top of the flexible belt and is connected to the flexible belt. The top of the bottom adsorption tube passes through the bottom of the clamping plate and the bottom of the flexible belt and is connected to the flexible belt. The two diversion boxes are fixedly connected to the top and bottom of the clamping plate, respectively. The side of the diversion box near the top adsorption tube and the bottom adsorption tube is connected to the top adsorption tube and the bottom adsorption tube, respectively.

[0011] Preferably, the centralized assembly includes a centralized hose, an intercepting mesh pipe, and an air pump. The centralized hose is connected to the side of the diversion box away from the flexible belt, the intercepting mesh pipe is connected to the side of the centralized hose away from the diversion box, and the air pump is connected to the side of the intercepting mesh pipe away from the centralized hose.

[0012] Preferably, an auxiliary slide plate is fixedly connected to the bottom of the clamping hydraulic cylinder, the bottom of the auxiliary slide plate is slidably connected to the top of the electric lead screw frame, and the surface of the auxiliary slide plate is provided with a silicone sleeve.

[0013] Preferably, a buffer pad is fixedly connected to the inner side of the flexible belt, and the inner side of the buffer pad is provided with anti-slip texture.

[0014] Preferably, the input end at the bottom of the top adsorption tube and the input end at the top of the bottom adsorption tube are both connected to a suction cup, and the surface of the suction cup is provided with a buffer texture.

[0015] Preferably, a drainage plate is fixedly connected to the inner side of the central hose, and the surface of the drainage plate is provided with guide patterns.

[0016] In the technical solution of this utility model, by setting an adaptation mechanism, the electric lead screw frame is an existing lead screw transmission structure controlled by PLC and driven by electricity, which can drive the guide slider to move threadedly on its surface. The clamping hydraulic cylinder can adapt to the size of the LCD screen as the guide slider moves. The clamping hydraulic cylinder can adjust the height of the clamping hydraulic rod through PLC control and electric hydraulic power, thereby adjusting the height of the clamping hydraulic rod so that the top and bottom clamping plates of the clamping plate move closer and further apart, changing the distance between the clamping plates. Therefore, the distance on the inner side of the flexible belt on its surface can be changed. When the LCD screen is placed on the flexible belt between the clamping plates, the flexible belt will adapt to the surface of the LCD screen due to its own flexibility. When the clamping plate drives the flexible belt to clamp the surface of the LCD screen, it increases the stability of clamping the LCD screen. Its flexibility can also prevent hard objects from scratching the LCD screen. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the adaptive mechanism structure of an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the anti-scratch mechanism structure according to an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the impurity removal component structure according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the centralized component structure of an embodiment of the present utility model.

[0023] Explanation of reference numerals: 1. Electric lead screw frame; 2. Adaptation mechanism; 21. Guide slider; 22. Clamping hydraulic cylinder; 23. Clamping hydraulic rod; 24. Clamping plate; 25. Flexible belt; 26. Auxiliary slide plate; 27. Buffer pad; 3. Anti-scratch mechanism; 31. Impurity removal assembly; 311. Top adsorption tube; 312. Bottom adsorption tube; 313. Diverter box; 314. Suction cup; 32. Centralization assembly; 321. Centralization hose; 322. Interception mesh tube; 323. Air pump; 324. Drainage flexible plate.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] This utility model provides a flexible clamping anti-scratch structure for testing liquid crystal displays, which aims to solve the problem that due to the lack of an adaptive adjustment anti-scratch structure, it is impossible to perform adaptive adjustment anti-scratch treatment when clamping the surface of the liquid crystal display, thus reducing the safety and flexibility when clamping the surface of the liquid crystal display.

[0030] like Figure 1-5 As shown in the figure, the present invention provides a flexible clamping anti-scratch structure for detecting liquid crystal displays, including an electric screw frame 1, an adaptation mechanism 2 and an anti-scratch mechanism 3. The adaptation mechanism 2 is located on the top of the electric screw frame 1, and the anti-scratch mechanism 3 is located on the inner side of the adaptation mechanism 2.

[0031] The adaptation mechanism 2 includes a guide slider 21, a clamping hydraulic cylinder 22, a clamping hydraulic rod 23, a clamping plate 24, and a flexible belt 25. The guide slider 21 is threadedly connected to the top of the electric screw frame 1. The clamping hydraulic cylinder 22 is fixedly connected to the top of the guide slider 21. The bottom of the clamping hydraulic cylinder 22 is movably connected to the top of the electric screw frame 1. The clamping hydraulic rod 23 is slidably connected to the top of the inner side of the clamping hydraulic cylinder 22. The two clamping plates 24 are fixedly connected to the surface of the clamping hydraulic cylinder 22 and the top of the clamping hydraulic rod 23, respectively. The flexible belt 25 is sleeved on the surface of the clamping plate 24.

[0032] In the technical solution of this utility model, by setting an adaptation mechanism 2, the electric lead screw frame 1 is an existing lead screw transmission structure controlled by PLC and driven by electricity, which can drive the guide slider 21 to move threadedly on its surface. The clamping hydraulic cylinder 22 can adapt to the size of the LCD screen as the guide slider 21 moves. The clamping hydraulic cylinder 22 can adjust the height of the clamping hydraulic rod 23 through PLC control and electric hydraulic power, thereby adjusting the height of the clamping hydraulic rod 23. This allows the clamping hydraulic rod 23 to move the top and bottom clamping plates 24 closer and further apart, changing the distance between the clamping plates 24. Therefore, the distance on the inner side of the flexible belt 25 on its surface can be changed. When the LCD screen is placed on the flexible belt 25 between the clamping plates 24, the flexible belt 25 will adapt to the surface of the LCD screen due to its own flexibility. When the clamping plates 24 drive the flexible belt 25 to clamp the surface of the LCD screen, the stability of clamping the LCD screen is increased. Its flexibility can also prevent hard objects from scratching the LCD screen.

[0033] Please refer to the following: Figure 3 The anti-scratch mechanism 3 includes a dirt removal component 31 and a concentrating component 32. The dirt removal component 31 is disposed on the surface of the clamping plate 24, and the concentrating component 32 is disposed on the side of the dirt removal component 31 away from the flexible belt 25. In this embodiment, by setting the anti-scratch mechanism 3, the dirt removal component 31 and the concentrating component 32 can cooperate with each other to change the internal environment of the dirt removal component 31, so that a negative pressure is formed inside the dirt removal component 31. This allows the dirt removal component 31 to use the negative pressure to wash impurities and debris into the concentrating component 32 for storage when the adaptation mechanism 2 clamps the surface of the liquid crystal display screen, and to use the negative pressure to adsorb and limit the surface of the liquid crystal display screen.

[0034] For further information, please continue to refer to [link / reference]. Figure 4 The impurity removal component 31 includes a top adsorption tube 311, a bottom adsorption tube 312, and a diversion box 313. The bottom of the top adsorption tube 311 passes through the top of the clamping plate 24 and the top of the flexible belt 25 and is connected to the flexible belt 25. The top of the bottom adsorption tube 312 passes through the bottom of the clamping plate 24 and the bottom of the flexible belt 25 and is connected to the flexible belt 25. The two diversion boxes 313 are fixedly connected to the top and bottom of the clamping plate 24, respectively. The side of the diversion box 313 closest to the top adsorption tube 311 and the bottom adsorption tube 312 is connected to the top adsorption tube 311 and the bottom adsorption tube 312, respectively. In this embodiment, by setting the impurity removal component 31, the top adsorption tube 311 can cooperate with the bottom adsorption tube 312 and the diversion box 313. Through the contact between the top adsorption tube 311 and the bottom adsorption tube 312 with the upper and lower surfaces of the liquid crystal display screen along with the flexible belt 25, the upper and lower surfaces of the liquid crystal display screen can be adsorbed respectively when the concentrating component 32 generates negative pressure. This can further increase the stability when limiting the liquid crystal display screen, and at the same time, it can avoid the flexible belt 25 from scratching the particulate impurities attached to the surface of the liquid crystal display screen during clamping. The diversion box 313 can use its large air delivery space to evenly send the air sucked in by the negative pressure in the bottom adsorption tube 312 and the top adsorption tube 311 into the concentrating component 32.

[0035] Please continue to refer to this. Figure 5 The centralized component 32 includes a centralized hose 321, an interception mesh pipe 322, and an air pump 323. The centralized hose 321 is connected to the side of the diversion box 313 away from the flexible belt 25, the interception mesh pipe 322 is connected to the side of the centralized hose 321 away from the diversion box 313, and the air pump 323 is connected to the side of the interception mesh pipe 322 away from the centralized hose 321. In this embodiment, by setting a centralized component 32, the centralized hose 321 can cooperate with the interception mesh pipe 322 and the air pump 323. When the gas delivered in the diversion box 313 is extracted by the air pump 323 through the centralized hose 321, the interception mesh pipe 322 can use its own filter structure to intercept impurities in the air when the air flows through the interception mesh pipe 322, so as to avoid the impurities from clogging the air pump 323. This achieves the effect of creating a negative pressure in the space inside the impurity removal component 31 through the centralized hose 321. Furthermore, due to its flexible material properties, the centralized hose 321 can adapt to the movement of the clamping plate 24, thus avoiding hindering the normal operation of the clamping plate 24.

[0036] Please refer to Figure 2An auxiliary sliding plate 26 is fixedly connected to the bottom of the clamping hydraulic cylinder 22. The bottom of the auxiliary sliding plate 26 is slidably connected to the top of the electric lead screw frame 1, and a silicone sleeve is provided on the surface of the auxiliary sliding plate 26. In this embodiment, by setting the auxiliary sliding plate 26, it can be used in conjunction with the clamping hydraulic cylinder 22. The auxiliary sliding plate 26 can move along the electric lead screw frame 1 as the clamping hydraulic cylinder 22 moves, thereby providing auxiliary protection between the clamping hydraulic cylinder 22 and the electric lead screw frame 1 and extending the service life of the clamping hydraulic cylinder 22.

[0037] Additionally, please refer to Figure 2 A buffer pad 27 is fixedly connected to the inner side of the flexible belt 25, and the inner side of the buffer pad 27 is provided with anti-slip texture. In this embodiment, by setting the buffer pad 27, it can be used in conjunction with the flexible belt 25. The buffer pad 27 uses its own flexibility to cushion the flexible belt 25 when it comes into contact with the side surface of the liquid crystal display screen, which can prevent the edge of the liquid crystal display screen from damaging the flexible belt 25 and increase the stability of the flexible belt 25 when limiting the liquid crystal display screen.

[0038] Please refer to Figure 4 The bottom input end of the top adsorption tube 311 and the top input end of the bottom adsorption tube 312 are both connected to a suction cup 314, and the surface of the suction cup 314 is provided with a buffer texture. In this embodiment, by setting the suction cup 314, it can be used in conjunction with the top adsorption tube 311 and the bottom adsorption tube 312. The suction cup 314 contacts the upper and lower surfaces of the liquid crystal display screen. Utilizing the shape of the suction cup 314 itself, the contact range with the liquid crystal display screen can be further increased, increasing the range of negative pressure adsorption of the liquid crystal display screen by the top adsorption tube 311 and the bottom adsorption tube 312 on the liquid crystal display screen, and increasing the stability when limiting the liquid crystal display screen.

[0039] Additionally, please refer to Figure 5 A flow-guiding flexible plate 324 is fixedly connected to the inner side of the central hose 321, and the surface of the flow-guiding flexible plate 324 is provided with guiding patterns. In this embodiment, by setting the flow-guiding flexible plate 324, it can be used in conjunction with the central hose 321. By setting multiple flow-guiding flexible plates 324 on the inner side of the central hose 321, it can adapt to the internal structure of the central hose 321, and at the same time, utilize the characteristics of its multiple plate-like structures to provide auxiliary support for the interior of the central hose 321, preventing the central hose 321 from automatically closing due to excessive negative pressure. Furthermore, the flow-guiding patterns on the surface of the flow-guiding flexible plate 324 can provide auxiliary guidance for airflow, increasing the stability of airflow.

[0040] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A flexible clamping and scratch-resistant structure for testing liquid crystal displays, characterized in that, The flexible clamping anti-scratch structure for detecting the liquid crystal display screen includes an electric lead screw frame (1), an adaptation mechanism (2) and an anti-scratch mechanism (3). The adaptation mechanism (2) is located on the top of the electric lead screw frame (1), and the anti-scratch mechanism (3) is located on the inner side of the adaptation mechanism (2). The adaptation mechanism (2) includes a guide slider (21), a clamping hydraulic cylinder (22), a clamping hydraulic rod (23), a clamping plate (24), and a flexible belt (25). The guide slider (21) is threadedly connected to the top of the electric screw frame (1). The clamping hydraulic cylinder (22) is fixedly connected to the top of the guide slider (21). The bottom of the clamping hydraulic cylinder (22) is movably connected to the top of the electric screw frame (1). The clamping hydraulic rod (23) is slidably connected to the top of the inner side of the clamping hydraulic cylinder (22). Two clamping plates (24) are fixedly connected to the surface of the clamping hydraulic cylinder (22) and the top of the clamping hydraulic rod (23), respectively. The flexible belt (25) is sleeved on the surface of the clamping plate (24).

2. The flexible clamping and scratch-resistant structure for testing liquid crystal displays according to claim 1, characterized in that, The anti-scratch mechanism (3) includes a cleaning component (31) and a concentrating component (32). The cleaning component (31) is disposed on the surface of the clamping plate (24), and the concentrating component (32) is disposed on the side of the cleaning component (31) away from the flexible belt (25).

3. The flexible clamping and scratch-resistant structure for testing liquid crystal displays according to claim 2, characterized in that, The impurity removal assembly (31) includes a top adsorption tube (311), a bottom adsorption tube (312), and a diversion box (313). The bottom of the top adsorption tube (311) passes through the top of the clamping plate (24) and the top of the flexible belt (25) and is connected to the flexible belt (25). The top of the bottom adsorption tube (312) passes through the bottom of the clamping plate (24) and the bottom of the flexible belt (25) and is connected to the flexible belt (25). The two diversion boxes (313) are fixedly connected to the top and bottom of the clamping plate (24) respectively. The side of the diversion box (313) close to the top adsorption tube (311) and the bottom adsorption tube (312) is connected to the top adsorption tube (311) and the bottom adsorption tube (312) respectively.

4. The flexible clamping and scratch-resistant structure for testing liquid crystal displays according to claim 3, characterized in that, The centralized assembly (32) includes a centralized hose (321), an intercepting mesh pipe (322), and an air pump (323). The centralized hose (321) is connected to the side of the diversion box (313) away from the flexible belt (25). The intercepting mesh pipe (322) is connected to the side of the centralized hose (321) away from the diversion box (313). The air pump (323) is connected to the side of the intercepting mesh pipe (322) away from the centralized hose (321).

5. The flexible clamping and scratch-resistant structure for testing liquid crystal displays according to claim 1, characterized in that, The bottom of the clamping hydraulic cylinder (22) is fixedly connected to an auxiliary slide plate (26), the bottom of the auxiliary slide plate (26) is slidably connected to the top of the electric lead screw frame (1), and the surface of the auxiliary slide plate (26) is provided with a silicone sleeve.

6. The flexible clamping and scratch-resistant structure for testing liquid crystal displays according to claim 1, characterized in that, The inner side of the flexible belt (25) is fixedly connected to a buffer pad (27), and the inner side of the buffer pad (27) is provided with anti-slip texture.

7. The flexible clamping and scratch-resistant structure for testing liquid crystal displays according to claim 3, characterized in that, The bottom input end of the top adsorption tube (311) and the top input end of the bottom adsorption tube (312) are both connected to a suction cup (314), and the surface of the suction cup (314) is provided with a buffer texture.

8. The flexible clamping and scratch-resistant structure for testing liquid crystal displays according to claim 4, characterized in that, The inner side of the central hose (321) is fixedly connected to a drainage plate (324), and the surface of the drainage plate (324) is provided with guide patterns.

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