Hardness detection device capable of adjusting force for display screen production

Abstract

The utility model discloses a hardness detection device capable of adjusting force for display screen production, and relates to the technical field of display screen production. The device comprises a working table, a support is fixedly connected to the top of the working table, and a positioning frame is arranged in an inner cavity of the working table; a detection assembly is arranged in an inner cavity of the support. Through the synergistic effect of the electromagnet and the spring in the detection assembly, the pressing force of the pressing head is accurately adjusted, the position of the electromagnet can be flexibly adjusted through the second lead screw and the threaded plate, so that the magnetic attraction force to the pressing head is changed, the detection force can be more accurately controlled in combination with the elastic feedback of the spring, and the detection precision is improved. The problem of force deviation caused by the fact that a traditional method only depends on the dead weight of a pressure head or mechanical adjustment is avoided, in addition, the protective cover can automatically ascend and descend along with the detection process, chippings generated when the display screen is pressed are effectively prevented from splashing, the detection environment is protected, and operation safety is improved.

Description

Technical Field

[0001] This utility model belongs to the field of display screen manufacturing technology, and in particular relates to a hardness testing device for display screen manufacturing with adjustable force. Background Technology

[0002] A display screen is a device that converts electronic signals into visible images. It is typically used to output information such as text, graphics, and video. Through different technologies and principles, such as liquid crystal displays (LCDs), light-emitting diodes (LEDs), and organic light-emitting diodes (OLEDs), it converts input electronic signals into images or text that are visible to the human eye. Display screens are widely used in televisions, computers, smartphones, tablets, and various other electronic devices.

[0003] In the prior art, a Chinese patent application with publication number CN214040994U discloses a hardness testing device for display screen production with adjustable force. The device includes a base, a worktable placed on top of the base, a winding tube mounted on the upper right side of the base, and a telescopic rod mounted on the upper left side of the base. The upper end of the telescopic rod has the left end of a horizontal plate fixedly mounted on it. An adjusting block is connected through the interior of the horizontal plate. A receiving block is rotatably connected to the front side of the connecting block. A housing is fixedly mounted on the lower part of the adjusting block. A handwheel is fixedly mounted on the front side of the winding tube, and a connecting body is fixedly connected to the lower end of the rope. This hardness testing device for display screen production with adjustable force facilitates clamping and fixing of the display screen, improves testing efficiency, and allows for easy adjustment of the testing force and the position to be tested, thus increasing flexibility.

[0004] However, the above-mentioned device still has the following problems in the implementation process: In the above application, the method of adjusting the pressure by adjusting the height of the pressure head relies too much on the load stiffness of the pressure head itself, which makes it difficult to achieve the required precision in controlling the pressure, which may affect the accuracy of the test results. In addition, during the process of the pressure head falling, it may cause debris to fly on the surface of the display screen, which may not only affect the equipment in the testing area, but also pose a potential threat to the safety of the personnel on site.

[0005] To address these issues, we provide a hardness testing device for display screen manufacturing with adjustable force. Utility Model Content

[0006] The purpose of this invention is to provide a hardness testing device for display screen production with adjustable force. By combining the testing component and the positioning component, it solves the problems of inaccurate downward pressure adjustment and the resulting debris affecting the equipment and personnel in the existing hardness testing devices for display screen production with adjustable force.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0008] This utility model discloses a hardness testing device for display screen production with adjustable force, comprising a worktable, a bracket fixedly connected to the top of the worktable, and a positioning frame disposed within the inner cavity of the worktable; a testing component disposed within the inner cavity of the bracket, the testing component comprising a spring fixedly connected to the bottom of the bracket, a pressure head disposed at the bottom of the bracket, electromagnets slidably connected to both sides of the bracket, and a protective cover slidably connected to the inner cavity of the worktable, the testing component being used to adjust the testing force and protect the testing area environment; a positioning component disposed within the inner cavity of the positioning frame, the positioning component comprising a first lead screw movably connected to the top of the positioning frame, sliding sleeves threadedly connected to both sides of the surface of the first lead screw, and a clamping plate fixedly connected to the top of the sliding sleeves, the positioning component being used to stabilize the display screen to be tested.

[0009] The present invention is further configured such that a second lead screw is movably connected to both sides of the inner cavity of the bracket, and a threaded plate is threadedly connected to the surface of the second lead screw, and one side of the threaded plate is fixedly connected to one side of the electromagnet.

[0010] The present invention is further configured such that a slotted plate is fixedly connected to the top of the positioning frame, and the bottom of the clamping plate is slidably connected to the top of the slotted plate.

[0011] The present invention is further configured such that a threaded sleeve is threadedly connected to the surface of the second lead screw, and one side of the threaded sleeve is fixedly connected to one side of the surface of the protective cover.

[0012] The present invention is further configured such that a first motor is fixedly connected to one side of the inner cavity of the positioning frame, and the output end of the first motor is fixedly connected to one end of the first lead screw.

[0013] The present invention is further configured such that a second motor is fixedly connected to both sides of the top of the bracket, and the output end of the second motor is fixedly connected to one end of the second lead screw.

[0014] The present invention is further configured such that the inner cavity of the positioning frame is provided with a collection port, and the bottom side of the positioning frame is provided with a discharge port, and the inner cavity of the collection port is connected to the inner cavity of the discharge port.

[0015] The present invention has the following beneficial effects.

[0016] 1. This utility model achieves precise adjustment of the pressure applied by the electromagnet and spring in the detection component. The position of the electromagnet can be flexibly adjusted through the second lead screw and threaded plate, thereby changing the magnetic attraction force on the pressure head. Combined with the elastic feedback of the spring, the detection force can be controlled more accurately, avoiding the force deviation problem caused by relying solely on the weight of the pressure head or mechanical adjustment in the traditional method. In addition, the protective cover can automatically rise and fall during the detection process, effectively preventing debris from flying when the display screen is pressed, thus protecting the detection environment and improving operational safety.

[0017] 2. This utility model drives the sliding sleeve and clamping plate to move synchronously through the first lead screw in the positioning component, which can quickly and stably clamp displays of different sizes, ensuring the stability of the product under test during the testing process. At the same time, the inner cavity of the positioning frame is equipped with a sluice plate and a collection port. Debris can fall into the collection port through the sluice plate and be discharged in a concentrated manner, avoiding the impact of debris accumulation on the testing accuracy and facilitating subsequent cleaning, thereby further improving the testing efficiency and the cleanliness of the working environment.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a perspective view of a hardness testing device for display screen manufacturing with adjustable force.

[0021] Figure 2 This is an exploded view of the worktable and protective cover in a hardness testing device for display screen production with adjustable force.

[0022] Figure 3 This is an exploded view of the internal structure of the support frame in a hardness testing device for display screen manufacturing with adjustable force.

[0023] Figure 4 This is an exploded view of the positioning frame and worktable in a hardness testing device for display screen production with adjustable force.

[0024] Figure 5 This is an exploded view of the internal structure of the positioning frame in a hardness testing device for display screen production with adjustable force.

[0025] In the attached diagram: 1. Workbench; 2. Support; 3. Positioning frame; 4. Spring; 5. Pressure head; 6. Electromagnet; 7. Protective cover; 8. First lead screw; 9. Sliding sleeve; 10. Clamping plate; 11. Second lead screw; 12. Threaded plate; 13. Strainer plate; 14. Threaded sleeve; 15. First motor; 16. Second motor; 17. Collection port; 18. Discharge port. Detailed Implementation

[0026] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example 1

[0028] Please see Figures 1-5 This utility model relates to a hardness testing device for display screen production with adjustable force. It includes a worktable 1 with a circular opening in its inner cavity. The inner cavity of the circular opening is flush with the top of a positioning frame 3 but not in contact with it. A bracket 2 is fixedly connected to the top of the worktable 1, and the positioning frame 3 is located within the inner cavity of the worktable 1. A testing component is located within the inner cavity of the bracket 2. The testing component includes a spring 4 fixedly connected to the bottom of the bracket 2, with a contact plate fixedly connected to one end of the spring 4 to allow the top of a pressure head 5 to press against the spring 4. A pressure head 5 is located at the bottom of the bracket 2, and electromagnets 6 are slidably connected to both sides of the bracket 2. When the electromagnets 6 are energized, they can clamp the pressure head 5; when de-energized, the pressure head 5 can drop, thus facilitating... The pressure test is performed, and a protective cover 7 is slidably connected to the inner cavity of the workbench 1. The protective cover 7 can rise to shield the debris splashed on the surface of the display screen to prevent damage to the equipment or personnel present. The test component is used to adjust the test force and protect the test area environment. The inner cavity of the positioning frame 3 is provided with a positioning component, which includes a first lead screw 8 movably connected to the top of the positioning frame 3, a limit rod fixedly connected to the inner cavity of the positioning frame 3, and a sliding sleeve 9 slidingly connected to the surface of the limit rod on one side of the inner cavity to limit the sliding sleeve 9. The sliding sleeve 9 is threaded to both sides of the surface of the first lead screw 8, and a clamping plate 10 is fixedly connected to the top of the sliding sleeve 9. The positioning component is used to stabilize the display screen to be tested.

[0029] Example 2

[0030] Please see Figures 1-5Based on embodiment 1, a second lead screw 11 is movably connected to both sides of the inner cavity of the bracket 2. A threaded plate 12 is threadedly connected to the surface of the second lead screw 11. A limit plate is fixedly connected to both sides of the inner cavity of the bracket 2. The surface of the limit plate is slidably connected to one side of the threaded plate 12 to limit the threaded plate 12. A groove is opened on one side of the inner cavity of the bracket 2 to facilitate the connection between the threaded plate 12 and the electromagnet 6. One side of the threaded plate 12 is fixedly connected to one side of the electromagnet 6. A drain plate 13 is fixedly connected to the top of the positioning frame 3. The drain plate 13 enables the positioning frame 3 to support the display screen and allows debris to fall into the collection port 17. The bottom of the clamping plate 10 is slidably connected to the top of the drain plate 13. The second lead screw... 11 has a threaded sleeve 14 connected to the surface threadedly. One side of the threaded sleeve 14 is slidably connected to the surface of the limiting plate to limit the position. One side of the threaded sleeve 14 is fixedly connected to one side of the surface of the protective cover 7. A first motor 15 is fixedly connected to one side of the inner cavity of the positioning frame 3. The output end of the first motor 15 is fixedly connected to one end of the first lead screw 8. A second motor 16 is fixedly connected to both sides of the top of the bracket 2. The output end of the second motor 16 is fixedly connected to one end of the second lead screw 11. A collection port 17 is opened in the inner cavity of the positioning frame 3. A discharge port 18 is opened at the bottom of one side of the positioning frame 3. The collection port 17 and the discharge port 18 are connected to each other, so that the debris can be discharged directly. The inner cavity of the collection port 17 is connected to the inner cavity of the discharge port 18.

[0031] The working principle of this utility model is as follows: During testing, the display screen to be tested is first placed on the slotted plate 13 of the positioning frame 3. The first motor 15 is started to drive the first lead screw 8 to rotate, which drives the two sliding sleeves 9 to move synchronously towards each other, so that the clamping plate 10 clamps the edge of the display screen to ensure its stability. Then, the second motor 16 drives the second lead screw 11 to rotate, and the vertical position of the electromagnet 6 is adjusted through the threaded plate 12. After being energized, the electromagnet 6 generates a controllable magnetic attraction force on the pressure head 5. Combined with the elastic feedback of the spring 4, the downward pressure of the pressure head 5 is precisely adjusted to perform hardness testing. At the same time, the rotation of the second lead screw 11 drives the protective cover 7 to rise through the threaded sleeve 14, covering the testing area to prevent debris from splashing. The generated debris falls into the collection port 17 through the slotted plate 13 and is finally discharged from the discharge port 18. After the test is completed, all components are reset.

[0032] The above description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A hardness testing device for display screen production with adjustable force, comprising a worktable (1), characterized in that: The top of the workbench (1) is fixedly connected with a support (2), and the inner cavity of the workbench (1) is provided with a positioning frame (3); The inner cavity of the support (2) is provided with a detection assembly, the detection assembly comprises a spring (4) fixedly connected to the bottom of the support (2), a pressure head (5) arranged at the bottom of the support (2), an electromagnet (6) slidingly connected to both sides of the support (2), and a protective cover (7) slidingly connected to the inner cavity of the workbench (1), which is used for adjusting the detection force and protecting the detection area environment through the detection assembly; The inner cavity of the positioning frame (3) is provided with a positioning assembly, the positioning assembly comprises a first lead screw (8) movably connected to the inner top of the positioning frame (3), a sliding sleeve (9) threadedly connected to both sides of the surface of the first lead screw (8), and a clamping plate (10) fixedly connected to the top of the sliding sleeve (9), which is used for stabilizing the display screen to be detected through the positioning assembly.

2. The hardness detection device for display screen production with adjustable force according to claim 1, characterized in that: The inner cavity of the support (2) is movably connected with a second lead screw (11) on both sides, the surface of the second lead screw (11) is threadedly connected with a threaded plate (12), and one side of the threaded plate (12) is fixedly connected with one side of the electromagnet (6).

3. The hardness detection device for display screen production with adjustable force according to claim 1, characterized in that: The top of the positioning frame (3) is fixedly connected with a leakage plate (13), and the bottom of the clamping plate (10) is slidingly connected with the top of the leakage plate (13).

4. The hardness detection device for display screen production with adjustable force according to claim 2, characterized in that: The surface of the second lead screw (11) is threadedly connected with a threaded sleeve (14), and one side of the threaded sleeve (14) is fixedly connected with one side of the surface of the protective cover (7).

5. The hardness detection device for display screen production with adjustable force according to claim 1, characterized in that: One side of the inner cavity of the positioning frame (3) is fixedly connected with a first motor (15), and the output end of the first motor (15) is fixedly connected with one end of the first lead screw (8).

6. The hardness detection device for display screen production with adjustable force according to claim 1, characterized in that: Both sides of the top of the support (2) are fixedly connected with a second motor (16), and the output end of the second motor (16) is fixedly connected with one end of the second lead screw (11).

7. The hardness detection device for display screen production with adjustable force according to claim 1, characterized in that: The inner cavity of the positioning frame (3) is provided with a collecting port (17), and the bottom of one side of the positioning frame (3) is provided with a discharge port (18), and the inner cavities of the collecting port (17) and the discharge port (18) are communicated.

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