Pressure detection device for liquid crystal screen

Abstract

The utility model discloses a pressure detection device for a liquid crystal screen, which comprises a working table, a supporting pad is mounted on the inner wall of a material placing groove, hydraulic cylinders are mounted on the two sides of the upper end of a supporting frame in an inserted manner, a supporting plate is mounted at the output ends of the hydraulic cylinders, an extrusion block is mounted at the lower end of the supporting plate, and a pressure sensor is mounted on the inner wall of the extrusion block in an embedded manner. One end of the pressure sensor is electrically connected with a connecting wire, and one end of the connecting wire is electrically connected with a display screen. According to the pressure detection device for the liquid crystal screen, the servo motor and the driving gear can drive the material containing groove to be meshed and telescopically adjusted, feeding and discharging operation can be conveniently carried out, more uniform detection can be carried out through the pressure sensors and the extrusion blocks which are distributed in a matrix mode, the supporting frame can be turned over and opened through the connecting hinges, and the detection efficiency is improved. The pressure sensor and the extrusion block are convenient to maintain and clean, operation is convenient, the closed cover plate is convenient to reset, open and close, a closed structure is formed, and the sputtering risk is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure detection of liquid crystal displays, in particular to a pressure detection device for liquid crystal displays. Background Technique

[0002] The production of liquid crystal displays belongs to a type of flat panel display and is used for the screen display of televisions and computers. The production of liquid crystal displays uses a liquid crystal solution in two pieces of polarizing material, and when an electric current passes through the liquid, the liquid crystal will rearrange to achieve the purpose of imaging. During the production of liquid crystal displays, it is necessary to detect their own strength.

[0003] The existing CN113687531A, an anti-pressure detection device for LCD liquid crystal display production, can conveniently perform accurate anti-pressure tests on LCD liquid crystal display production, send accurate anti-pressure data to the control box for display, and ensure the precision of the product. However, it has deficiencies. The existing equipment is inconvenient for loading and unloading operations, has a single detection point, is inconvenient for maintenance operations, has poor protection, and is inconvenient to use. Therefore, a pressure detection device for liquid crystal displays is needed to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a pressure detection device for liquid crystal displays to solve the problems mentioned in the above background technique that the existing anti-pressure detection device for LCD liquid crystal display production is inconvenient for loading and unloading operations, has a single detection point, is inconvenient for maintenance operations, has poor protection, and is inconvenient to use.

[0005] To achieve the above object, the present utility model provides the following technical solutions: A pressure detection device for a liquid crystal screen, comprising a workbench, the front side of the workbench is electrically connected to a PLC controller, and a support frame is installed at the upper edge of the workbench. The rear side of the upper end of the workbench is installed with a connecting hinge, and the connecting hinge is connected to the support frame. The front side edge of the lower end of the support frame is fixedly connected with a fixed buckle block, and the fixed buckle block is inserted and installed with a fixed buckle groove. The fixed buckle groove is opened at the front side edge of the upper end of the workbench, and a locking knob is inserted and installed on the outer wall of the fixed buckle groove. The front side upper edge of the workbench is installed with a reset rotating shaft, and a closing cover plate is installed on the other side of the reset rotating shaft. A servo motor is embedded and installed at the lower end of the inner wall of the workbench, and a driving gear is installed at the output end of the servo motor. A material placing groove is meshed and installed on one side of the driving gear, and limiting sliding rails are fixedly connected to both sides of the material placing groove. The limiting sliding rails are inserted and installed with limiting sliding blocks, and the limiting sliding blocks are opened on both sides of the inner wall of the workbench. A support pad is installed on the inner wall of the material placing groove. Hydraulic cylinders are inserted and installed on both sides of the upper end of the support frame, and a support plate is installed at the output end of the hydraulic cylinders. An extrusion block is installed at the lower end of the support plate, and a pressure sensor is embedded and installed in the inner wall of the extrusion block. One end of the pressure sensor is electrically connected to a connecting wire, and one end of the connecting wire is electrically connected to a display screen. The display screen is fixedly connected to the center position of the upper end of the support frame.

[0006] Preferably, the support frame is rotatably connected to the workbench through the connecting hinge, and the support frame is inserted and positioned with the workbench in the fixed buckle groove through the fixed buckle block. The fixed buckle block is fixedly connected with the fixed buckle groove through the locking knob.

[0007] Preferably, the support plate is vertically connected to the support frame through the hydraulic cylinder, and the shape of the support plate matches the shape of the inner wall of the material placing groove.

[0008] Preferably, the material placing groove is meshed and telescopically connected to the workbench on the servo motor through the driving gear, and the material placing groove is slidably connected to the workbench in the limiting slider through the limiting sliding rail.

[0009] Preferably, the closing cover plate is reset and rotatably closed to the workbench through the reset rotating shaft.

[0010] Preferably, the pressure sensors and the extrusion blocks are distributed in a matrix position on the support plate, and the pressure sensors are electrically connected to the display screen through the connecting wires. The connecting wires are of an elastic structure.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The pressure detection device for liquid crystal displays can drive the feeding trough to engage and telescopically adjust through a servo motor and a driving gear, facilitating the loading and unloading operations. Moreover, it can perform more uniform detection through the pressure sensors and extrusion blocks distributed in a matrix, and can flip open the support frame through the connecting hinge, facilitating the maintenance and cleaning of the pressure sensors and extrusion blocks. The operation is convenient, and the closing cover plate is convenient for resetting, opening, and closing, forming a closed structure to avoid the risk of sputtering. Description of the Drawings

[0012] Figure 1 It is the front view of a pressure detection device for liquid crystal displays of the present utility model;

[0013] Figure 2 It is the sectional view of a pressure detection device for liquid crystal displays of the present utility model;

[0014] Figure 3 It is the side view of a pressure detection device for liquid crystal displays of the present utility model;

[0015] Figure 4 It is a pressure detection device for liquid crystal displays of the present utility model Figure 2 The enlarged view of part A in it;

[0016] Figure 5 It is a pressure detection device for liquid crystal displays of the present utility model Figure 2 The enlarged view of part B in it;

[0017] Figure 6 It is a pressure detection device for liquid crystal displays of the present utility model Figure 3 The enlarged view of part C in it.

[0018] In the figures: 1, workbench; 2, PLC controller; 3, support frame; 4, hydraulic cylinder; 5, support plate; 6, display screen; 7, connecting wire; 8, support pad; 9, feeding trough; 10, servo motor; 11, connecting hinge; 12, closing cover plate; 13, pressure sensor; 14, extrusion block; 15, limit slider; 16, limit slide rail; 17, driving gear; 18, reset rotating shaft; 19, fixed buckle groove; 20, fixed buckle block; 21, locking knob. Detailed Embodiment

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1-6 Figures 1-6

[0021] The rear side of the upper end of the workbench 1 is provided with a connecting hinge 11, and the connecting hinge 11 is connected to the support frame 3. The front side edge of the lower end of the support frame 3 is fixedly connected with a fixed buckle block 20, and the fixed buckle block 20 is inserted and installed in the fixed buckle groove 19. The fixed buckle groove 19 is opened at the front side edge of the upper end of the workbench 1, and a locking knob 21 is inserted and installed on the outer wall of the fixed buckle groove 19. The front side upper edge of the workbench 1 is provided with a reset rotating shaft 18, and a closing cover plate 12 is installed on the other side of the reset rotating shaft 18. The closing cover plate 12 is connected to the workbench 1 by the reset rotating shaft 18 for reset flipping and closing, so that the closing cover plate 12 is convenient for reset opening and closing, convenient for forming a closed structure and forming a protection structure.

[0022] The servo motor 10 is embedded and installed at the lower end of the inner wall of the workbench 1, and the driving gear 17 is installed at the output end of the servo motor 10. A material placing groove 9 is meshed and installed on one side of the driving gear 17, and the limiting sliding rails 16 are fixedly connected to both sides of the material placing groove 9. The material placing groove 9 is connected to the workbench 1 by the driving gear 17 on the servo motor 10 for meshing and moving back and forth telescopically, and the material placing groove 9 is connected to the workbench 1 by the limiting sliding rails 16 in the limiting sliding blocks 15 for limiting sliding connection, so that the material placing groove 9 is convenient for meshing and telescopic adjustment and convenient for loading and unloading operations.

[0023] The limiting sliding rails 16 are inserted and installed with the limiting sliding blocks 15, and the limiting sliding blocks 15 are opened on both sides of the inner wall of the workbench 1. The supporting pads 8 are installed on the inner wall of the material placing groove 9. The hydraulic cylinders 4 are inserted and installed on both sides of the upper end of the support frame 3, and the supporting plates 5 are installed at the output ends of the hydraulic cylinders 4. The supporting plates 5 are connected to the support frame 3 by the hydraulic cylinders 4 for lifting and lowering, and the shape of the supporting plates 5 matches the shape of the inner wall of the material placing groove 9, so that the supporting plates 5 are convenient for stable lifting and the pressure detection is more stable.

[0024] A pressing block 14 is installed at the lower end of the support plate 5, and a pressure sensor 13 is embedded in the inner wall of the pressing block 14. The pressure sensors 13 and the pressing blocks 14 are distributed in a matrix on the support plate 5, and the pressure sensors 13 are electrically connected to the display screen 6 through connecting wires 7. The connecting wires 7 are of an elastic structure, so that the pressure sensors 13 and the pressing blocks 14 can perform more uniform pressure detection with better effects. One end of the pressure sensor 13 is electrically connected to a connecting wire 7, and one end of the connecting wire 7 is electrically connected to a display screen 6. The display screen 6 is fixedly connected to the center position at the upper end of the support frame 3.

[0025] Working principle: When using the pressure detection device for a liquid crystal screen, first connect the device to a power source, then drive the material placing groove 9 to mesh and extend through the servo motor 10 and the driving gear 17. Next, place the liquid crystal screen on the support pad 8, and then reset the material placing groove 9. At the same time, the closing cover plate 12 can be reset and closed through the reset rotating shaft 18. Then, drive the support plate 5, the pressure sensor 13 and the pressing block 14 to press down through the hydraulic cylinder 4 to press the liquid crystal screen, and the pressure value can be displayed through the display screen 6. When the detection is completed, the material placing groove 9 can be extended to take out the liquid crystal screen for the next group of detections. When the pressure sensors 13 and the pressing blocks 14 need to be cleaned and repaired, the locking knob 21 can be loosened, and then the support frame 3 can be flipped open through the connecting hinge 11 for cleaning and repair. This is the usage process of the pressure detection device for a liquid crystal screen.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pressure detection device for a liquid crystal screen, comprising a workbench (1), a PLC controller (2) is electrically connected to the front side of the workbench (1), and a support frame (3) is installed on the upper edge of the workbench (1), characterized in that: A connecting hinge (11) is installed at the rear side of the upper end of the workbench (1), and the connecting hinge (11) is connected to the support frame (3). A fixing buckle block (20) is fixedly connected to the front side edge of the lower end of the support frame (3), and the fixing buckle block (20) is inserted and installed with a fixing buckle groove (19). The fixing buckle groove (19) is opened at the front side edge of the upper end of the workbench (1), and a locking knob (21) is inserted and installed on the outer wall of the fixing buckle groove (19). A reset rotating shaft (18) is installed at the front side edge of the upper end of the workbench (1), and a closing cover plate (12) is installed on the other side of the reset rotating shaft (18). A servo motor (10) is embedded and installed at the lower end of the inner wall of the workbench (1), and a driving gear (17) is installed at the output end of the servo motor (10). A material placing groove (9) is meshed and installed on one side of the driving gear (17), and limiting sliding rails (16) are fixedly connected to both sides of the material placing groove (9). The limiting sliding rails (16) are inserted and installed with limiting sliding blocks (15), and the limiting sliding blocks (15) are opened on both sides of the inner wall of the workbench (1). A support pad (8) is installed on the inner wall of the material placing groove (9). Hydraulic cylinders (4) are inserted and installed on both sides of the upper end of the support frame (3), and a support plate (5) is installed at the output end of the hydraulic cylinders (4). An extrusion block (14) is installed at the lower end of the support plate (5), and a pressure sensor (13) is embedded and installed on the inner wall of the extrusion block (14). One end of the pressure sensor (13) is electrically connected to a connecting wire (7), and one end of the connecting wire (7) is electrically connected to a display screen (6). The display screen (6) is fixedly connected to the center position of the upper end of the support frame (3).

2. The pressure detection device for a liquid crystal screen according to claim 1, characterized in that: The support frame (3) is rotatably connected to the workbench (1) through the connecting hinge (11), and the support frame (3) is inserted and positioned with the workbench (1) in the fixing buckle groove (19) through the fixing buckle block (20). The fixing buckle block (20) is fixedly locked and connected to the fixing buckle groove (19) through the locking knob (21).

3. The pressure detection device for a liquid crystal screen according to claim 2, wherein: The support plate (5) is vertically connected to the support frame (3) through the hydraulic cylinder (4), and the shape of the support plate (5) matches the shape of the inner wall of the material placing groove (9).

4. The pressure detection device for a liquid crystal display screen according to claim 3, characterized in that: The material placing groove (9) is meshed and telescopically connected to the workbench (1) on the servo motor (10) through the driving gear (17), and the material placing groove (9) is slidably limited to the workbench (1) in the limiting sliding block (15) through the limiting sliding rail (16).

5. The pressure detection device for a liquid crystal screen according to claim 4, wherein: The closing cover plate (12) is reset and rotatably closed to the workbench (1) through the reset rotating shaft (18).

6. The pressure detection device for a liquid crystal screen according to claim 5, wherein: The pressure sensors (13) and the extrusion blocks (14) are distributed in a matrix position on the support plate (5), and the pressure sensors (13) are electrically connected to the display screen (6) through the connecting wires (7). The connecting wires (7) are of an elastic structure.

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