Large platform optical contact angle measuring instrument

Abstract

The utility model relates to measuring instrument technical field discloses a big platform optical contact angle measuring instrument, including support base, support base top fixedly connected with connecting base, the connecting base top is equipped with a plurality of electric push rod, a plurality of electric push rod drive end fixedly connected with the platform of placing, the platform of placing bottom left and right sides are provided with adjusting clamping component, adjusting clamping component includes two clamping plates, the clamping plate abuts at the platform of placing left and right sides, the platform of placing bottom left and right sides fixedly connected with a plurality of fixed plate, the fixed plate inside slide connection has the expansion plate, the expansion plate rear fixedly connected with the limit block, the fixed plate outside screw thread connection has the adjusting screw rod. In the utility model, by rotating adjusting screw rod, then pull expansion plate and slide along the fixed plate's limit slot, drive clamping plate flexible adjustment and the relative position of platform of placing, can realize self -adaptation clamping according to the different size, thickness of big sample.

Description

Technical Field

[0001] This utility model relates to the field of measuring instrument technology, and in particular to a large-platform optical contact angle measuring instrument. Background Technology

[0002] Optical contact angle measuring instruments are core equipment for characterizing the wettability, surface energy, and interfacial tension of solid surfaces. They are widely used in material performance testing and quality control in fields such as semiconductor wafers, liquid crystal display panels, new energy battery electrodes, and large architectural glass.

[0003] Common optical contact angle measuring instruments have a relatively fixed structural frame, mainly consisting of a support base, fixed guide rails, and a movable slide plate to adjust the sample back, forth, left, and right. Then, the detection and dispensing components rely on a high-definition camera, a light source, and a dispensing guide rail to drive the sampler to complete the detection.

[0004] However, existing devices suffer from insufficient flexibility in sample clamping structures. Fixed blocks or simple bolt structures cannot adaptively adjust to the size and thickness of large samples, which can easily lead to uneven force on the sample edges and surface warping. In addition, the moving transmission components lack rigid constraints. When the support base plate and connecting base move left and right or back and forth, they rely solely on the cooperation of the moving slider and guide rail without additional support structures. This can easily cause swaying due to inertia, resulting in blurred droplet images captured by the high-definition camera and affecting the accuracy of edge recognition. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a large-platform optical contact angle measuring instrument, which aims to improve the problems in the prior art such as insufficient flexibility of large sample clamping structure, inability to adaptively adjust size, and easy blurring of droplet images captured by high-definition camera due to inertial shaking of moving transmission components, thus affecting the accuracy of edge recognition.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A large-platform optical contact angle measuring instrument includes a support base. Fixed guide rails are fixedly connected to the top left and right sides of the support base. A movable slide plate is slidably connected to the top of the two fixed guide rails. Movable guide rails distributed front and back are installed on the inner side of the movable slide plate. A support base plate is slidably connected to the top of the movable slide plate. Movable sliders are fixedly connected to the bottom front and back sides of the support base plate. A connecting base is fixedly connected to the top of the support base plate. Multiple electric actuators are installed on the top of the connecting base. A placement platform is fixedly connected to the driving ends of the multiple electric actuators. Adjustable clamping components are provided on the bottom left and right sides of the placement platform. The adjusting clamping assembly includes two clamping plates, which abut against the left and right sides of the placement platform. Multiple fixing plates are fixedly connected to the bottom left and right sides of the placement platform. Telescopic plates are slidably connected inside the fixing plates. Limit blocks are fixedly connected to the rear of the telescopic plates. Adjusting screws are threadedly connected to the outer side of the fixing plates. As a further description of the above technical solution: A front support plate is fixedly connected to the front of the support base, and a rear support plate is fixedly connected to the rear of the support base. A high-definition camera is installed on the top of the front support plate, and a light source is provided on the inner side of the rear support plate. Support rods pass through the left and right sides inside the connecting base, and rolling wheels are rotatably connected to both ends of the support rods. As a further description of the above technical solution: The front side of the support rear plate is slidably connected to a first drip guide rail, the front part of the first drip guide rail is slidably connected to a second drip guide rail, the front part of the second drip guide rail is provided with a drip mounting block, and the front part of the drip mounting block is provided with a sampler. As a further description of the above technical solution: Both the front support plate and the rear support plate have movable grooves on their inner sides, and the rolling wheel is slidably connected in the movable grooves; As a further description of the above technical solution: The connecting base has support holes on both the left and right sides inside, and the support rod passes through the support holes; As a further description of the above technical solution: The inner side of the clamping plate is fixedly connected to the front of the telescopic plate, and the front end of the adjusting screw abuts against the outer side of the telescopic plate. As a further description of the above technical solution: The fixed plate has a limiting groove at the front, the telescopic plate is slidably connected in the limiting groove, and the limiting block is slidably connected in the limiting groove. As a further description of the above technical solution: The movable slider is slidably connected to the outside of the movable guide rail.

[0007] This utility model has the following beneficial effects: 1. In this utility model, by rotating the adjusting screw, the telescopic plate is pulled to slide along the limiting groove of the fixed plate, thereby driving the clamping plate to flexibly adjust the relative position with the placement platform. This not only enables adaptive clamping according to the different sizes and thicknesses of large samples, but also prevents the telescopic plate from sliding excessively through the limiting block, ensuring that the sample edge is subjected to uniform force during the clamping process.

[0008] In this invention, a support rod that runs through the inside of the connecting base allows the rolling wheels at both ends of the support rod to be in the movable grooves inside the front and rear support plates. At the same time, the movable slider at the bottom of the support base plate cooperates with the movable guide rail inside the movable slide plate. This not only provides additional support for the left-right and front-back movement of the support base plate and the connecting base, but also effectively disperses the inertial force during the movement and reduces the swaying amplitude. Attached Figure Description

[0009] Figure 1 This is a three-dimensional schematic diagram of a large-platform optical contact angle measuring instrument proposed in this utility model; Figure 2 This is a schematic diagram of the placement platform for a large-platform optical contact angle measuring instrument proposed in this utility model. Figure 3 This is a schematic diagram of the moving guide rail of a large-platform optical contact angle measuring instrument proposed in this utility model; Figure 4 This is a schematic diagram of the clamping plate of a large-platform optical contact angle measuring instrument proposed in this utility model; Figure 5 This is a schematic diagram of the structure of the fixing plate of a large-platform optical contact angle measuring instrument proposed in this utility model.

[0010] Legend: 1. Support base; 2. Support front plate; 3. Support rear plate; 4. High-definition camera; 5. Light source; 6. Dropping guide rail one; 7. Dropping guide rail two; 8. Dropping mounting block; 9. Injector; 10. Fixed guide rail; 11. Moving slide plate; 12. Moving guide rail; 13. Support base plate; 14. Moving slider; 15. Connecting base; 16. Electric actuator; 17. Placement platform; 18. Fixed plate; 19. Limiting groove; 20. Adjusting screw; 21. Telescopic plate; 22. Clamping plate; 23. Limiting block; 24. Support rod; 25. Rolling wheel; 26. Movable groove; 27. Support hole. Detailed Implementation

[0011] 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.

[0012] Reference Figures 1-5This utility model provides an embodiment of a large-platform optical contact angle measuring instrument, including a support base 1, which is the load-bearing component of the entire device. Fixed guide rails 10 are fixedly connected to the left and right sides of the top of the support base 1. The fixed guide rails 10 are the core guiding components for realizing the forward and backward movement of the sample. A movable slide plate 11 is slidably connected to the top of the two fixed guide rails 10. The movable slide plate 11 is the intermediate component supporting the support base plate 13 and the upper components, and can slide forward and backward along the fixed guide rails 10. Movable guide rails 12, distributed forward and backward, are installed on the inner side of the movable slide plate 11. The movable guide rails 12 are guiding components for the left and right movement of the support base plate 13. The support base plate 13 is slidably connected to the top of the movable slide plate 11, and the support base plate 13 can slide left and right along the movable guide rails 12 on the inner side of the movable slide plate 11. The connecting base 15, electric push rod 16, placement platform 17 and sample at the top move left and right together. The front and rear sides of the bottom of the support base plate 13 are fixedly connected to the movable slider 14. The movable slider 14 is slidably connected to the outside of the movable guide rail 12. The movable slider 14 is a sliding connector between the support base plate 13 and the movable guide rail 12. The top of the support base plate 13 is fixedly connected to the connecting base 15. The connecting base 15 can synchronously transmit the horizontal movement of the support base plate 13 to the upper structure. Multiple electric push rods 16 are installed on the top of the connecting base 15. The electric push rods 16 are the power components that drive the vertical lifting of the placement platform 17. The driving ends of the multiple electric push rods 16 are fixedly connected to the placement platform 17. The placement platform 17 is the component that directly places large samples. Adjustable clamping components are provided on the left and right sides of the bottom of the placement platform 17. The adjustable clamping assembly includes two clamping plates 22, which abut against the left and right sides of the placement platform 17. The clamping plates 22 are clamping components that directly contact the edge of the sample. The two clamping plates 22 fix the sample from the left and right sides of the placement platform 17 respectively. The side in contact with the sample is made of rubber to prevent scratching the sample. Multiple fixing plates 18 are fixedly connected to the left and right sides of the bottom of the placement platform 17. The limiting grooves 19 inside the fixing plates 18 provide a sliding track for the telescopic plate 21 and also serve a supporting function. The telescopic plate 21 is slidably connected inside the fixing plates 18. The inner side of the clamping plate 22 is fixedly connected to the front of the telescopic plate 21. One end of the telescopic plate 21 is fixed to the clamping plate 22, and the other end can slide within the fixing plate 18, moving the clamping plate 22 through its own extension and retraction. The clamping position can be adjusted by moving closer to or further away from the sample. A limiting block 23 is fixedly connected to the rear of the telescopic plate 21. The function of the limiting block 23 is to prevent the telescopic plate 21 from sliding out of the fixed plate 18. A limiting groove 19 is opened at the front of the fixed plate 18. The telescopic plate 21 is slidably connected in the limiting groove 19, and the limiting block 23 is slidably connected in the limiting groove 19. The limiting groove 19 ensures that the telescopic plate 21 only slides in the front-back direction and will not shift left or right or shake up and down. At the same time, the limiting groove 19 determines the maximum adjustment range of the telescopic plate 21. An adjusting screw 20 is threadedly connected to the outside of the fixed plate 18. The front end of the adjusting screw 20 abuts against the outside of the telescopic plate 21. The adjusting screw 20 is the operating part that controls the sliding of the telescopic plate 21. The position of the telescopic plate 21 after movement is fixed by the abutting position. Reference Figure 1 and Figure 2A rear support plate 3 is fixedly connected to the rear of the support base 1, and a front support plate 2 is fixedly connected to the front of the support base 1. A droplet guide rail 6 is slidably connected to the front of the rear support plate 3. The droplet guide rail 6 is a guide for adjusting the vertical position of the injector 9. A second droplet guide rail 7 is slidably connected to the front of the first droplet guide rail 6. The second droplet guide rail 7 is a guide for adjusting the horizontal position of the injector 9. A droplet mounting block 8 is provided in front of the second droplet guide rail 7. The droplet mounting block 8 is a connecting component for fixing the injector 9. The injector 9 is provided in front of the droplet mounting block 8. The injector 9 is a component that generates detection droplets. A high-definition camera 4 is installed on the top of the front support plate 2. The high-definition camera 4 is a detection component that captures the droplet morphology. A light source 5 is provided inside the rear support plate 3. The light source 5 can emit light with uniform brightness and stable color temperature, which illuminates the sample and droplet surface, eliminating reflections and shadows on the droplet surface. Support rods 24 extend through the left and right sides of the interior of the base 15. The support rods 24 provide additional support for the moving transmission assembly, distributing the force on the connecting base 15 to the front support plate 2 and the rear support plate 3. Support holes 27 are provided on both the left and right sides of the interior of the connecting base 15, and the support rods 24 pass through the support holes 27. The support holes 27 are sliding channels for the support rods 24, ensuring that the connecting base 15 moves smoothly along the support rods 24. Rolling wheels 25 are rotatably connected to both ends of the support rods 24. The rolling wheels 25 make the movement of the connecting base 15 and the support rods 24 smoother. Movable grooves 26 are provided on the inner sides of the front support plate 2 and the rear support plate 3. The rolling wheels 25 are slidably connected in the movable grooves 26. The movable grooves 26 provide a sliding trajectory for the rolling wheels 25 and constrain the movement direction of the rolling wheels 25, ensuring that the support rods 24 and the connecting base 15 move smoothly only in the front-to-back direction.

[0013] Working principle: The operator first places the large sample to be tested on the placement platform 17, then adjusts the clamping assembly, rotates the adjusting screw 20 to unlock the telescopic plate 21, and then adjusts the position of the clamping plate 22 to clamp the sample until the two clamping plates 22 firmly clamp the sample. During the movement, the limit block 23 prevents the telescopic plate 21 from falling out, and the rubber surface of the clamping plate 22 can protect the sample from being scratched. Pushing the moving slide plate 11 will cause the sample to slide back and forth along the fixed guide rail 10 on the support base 1. Pushing the support base plate 13 will cause the moving slider 14 to slide left and right along the moving guide rail 12 on the moving slide plate 11. At the same time, the support rod 24 that runs through the inside of the connecting base 15 will move along with it. The rolling wheels 25 at both ends roll in the movable grooves 26 of the front support plate 2 and the rear support plate 3. No matter whether it moves back and forth or left and right, the sample will not shake violently.

[0014] In the preparation stage, first adjust the position of the injector 9 by sliding it up and down along the droplet guide rail 1 6 to adjust the height of the injector 9. Then slide it left and right along the droplet guide rail 2 7 to align the injector 9 with the point to be tested on the sample. Then turn on the light source 5 and start the electric push rod 16 on the connecting base 15. Slowly adjust the height of the placement platform 17 so that the sample surface is just close to the injector 9. Then the injector 9 squeezes out an appropriate amount of liquid droplet onto the sample. The high-definition camera 4 on the top of the front plate 2 will immediately capture the shape of the droplet to prepare for the subsequent calculation of the contact angle of the sample.

[0015] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A large-platform optical contact angle measuring instrument, comprising a support base (1), characterized in that: The support base (1) is fixedly connected to the left and right sides of the top of the support base (1). The top of the two fixed guide rails (10) is slidably connected to the movable slide plate (11). The inner side of the movable slide plate (11) is equipped with the front and rear distributed movable guide rails (12). The top of the movable slide plate (11) is slidably connected to the support base plate (13). The bottom of the support base plate (13) is fixedly connected to the front and rear sides of the bottom of the support base plate (13). The top of the support base plate (13) is fixedly connected to the connecting base (15). The top of the connecting base (15) is equipped with multiple electric push rods (16). The driving end of the multiple electric push rods (16) is fixedly connected to the placement platform (17). The bottom left and right sides of the placement platform (17) are provided with adjustment clamping components. The adjusting clamping assembly includes two clamping plates (22), which abut against the left and right sides of the placement platform (17). Multiple fixing plates (18) are fixedly connected to the bottom left and right sides of the placement platform (17). A telescopic plate (21) is slidably connected inside the fixing plate (18). A limit block (23) is fixedly connected to the rear of the telescopic plate (21). An adjusting screw (20) is threadedly connected to the outside of the fixing plate (18).

2. The large-platform optical contact angle measuring instrument according to claim 1, characterized in that: The front of the support base (1) is fixedly connected to a front support plate (2), and the rear of the support base (1) is fixedly connected to a rear support plate (3). A high-definition camera (4) is installed on the top of the front support plate (2), and a light source (5) is provided on the inner side of the rear support plate (3). Support rods (24) are passed through the left and right sides of the inside of the connecting base (15), and rolling wheels (25) are rotatably connected to both ends of the support rods (24).

3. The large-platform optical contact angle measuring instrument according to claim 2, characterized in that: The front side of the support back plate (3) is slidably connected to a first drip guide rail (6), the front part of the first drip guide rail (6) is slidably connected to a second drip guide rail (7), the front part of the second drip guide rail (7) is provided with a drip mounting block (8), and the front part of the drip mounting block (8) is provided with a sample injector (9).

4. The large-platform optical contact angle measuring instrument according to claim 2, characterized in that: The inner sides of the front support plate (2) and the rear support plate (3) are provided with movable grooves (26), and the rolling wheel (25) is slidably connected in the movable grooves (26).

5. The large-platform optical contact angle measuring instrument according to claim 2, characterized in that: The connecting base (15) has support holes (27) on both the left and right sides, and the support rod (24) passes through the support holes (27).

6. The large-platform optical contact angle measuring instrument according to claim 1, characterized in that: The clamping plate (22) is fixedly connected to the front of the telescopic plate (21) on the inner side, and the front end of the adjusting screw (20) abuts against the outer side of the telescopic plate (21).

7. The large-platform optical contact angle measuring instrument according to claim 1, characterized in that: The fixed plate (18) has a limiting groove (19) at the front, the telescopic plate (21) is slidably connected in the limiting groove (19), and the limiting block (23) is slidably connected in the limiting groove (19).

8. The large-platform optical contact angle measuring instrument according to claim 1, characterized in that: The movable slider (14) is slidably connected to the outside of the movable guide rail (12).

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