A dynamic optical film production coating apparatus

Abstract

This utility model relates to the field of optical film processing and manufacturing equipment, and discloses a dynamic optical film production coating device, including a mounting plate with a groove on the mounting plate. A shaping table is slidably connected to the inner side of the groove. Multiple rollers are rotatably connected to the lower side of the shaping table. A buffer mechanism is provided on the upper side of the shaping table. A coating frame mechanism is provided below the mounting plate. A scraper coating mechanism is provided on the side of the mounting plate away from the shaping table. The buffer mechanism includes multiple sliding cylinders fixedly connected to the upper side of the shaping table. This utility model uses multiple staggered rollers installed on the shaping table to press, shape, and flatten the optical film entering the limiting shaping channel from the top. After passing through the limiting shaping channel, the optical film can be effectively flattened and shaped before coating, thereby achieving a more uniform and sufficient coating effect.

Description

Technical Field

[0001] This utility model relates to the field of optical film processing and manufacturing equipment technology, and in particular to a dynamic optical film production coating device. Background Technology

[0002] The manufacturing process of optical films generally includes multiple steps such as coating, curing, and testing. Among them, coating is a key step that requires ensuring uniformity. By coating with special solvents, the optical performance of optical films can be improved, such as heat resistance, reducing scattering, and improving image quality. However, existing optical film production coating equipment does not shape and lay the optical film flat before coating, which may lead to uneven coating of the optical film.

[0003] For example, Chinese utility model patent CN217250222U discloses a high-efficiency PET optical film coating equipment with multi-layer uniform coating, which relates to the field of PET optical film processing technology. Although this solution can achieve uniform coating of optical film by cooperating with conveyor belt, scraper, mounting base, telescopic shaft and stepper motor, the optical film is not effectively shaped before the discharge pipe coats the optical film below. If wrinkles appear on the surface of the optical film itself, there may be areas that are covered but cannot be effectively coated. Based on this, a dynamic optical film production coating device is proposed. Utility Model Content

[0004] To solve the technical problems of optical film coating, this utility model provides a dynamic optical film production coating device.

[0005] This utility model is achieved using the following technical solution: a dynamic optical film production coating device, including a mounting plate, a groove is provided on the mounting plate, a shaping table is slidably connected to the inner side of the groove, a plurality of circular rollers are rotatably connected to the lower side of the shaping table, a buffer mechanism is provided on the upper side of the shaping table, a coating frame mechanism is provided below the mounting plate, and a scraper coating mechanism is provided on the side of the mounting plate away from the shaping table.

[0006] As a further improvement to the above solution, the buffer mechanism includes multiple sliding cylinders fixedly connected to the upper side of the shaping platform. Each sliding cylinder has a fine-tuning screw slidably connected to its inner side. A fixing plate is fixedly connected to the upper side of the mounting plate. The multiple fine-tuning screws are threadedly sleeved with the fixing plate. Each fine-tuning screw is rotatably connected to a limit ring. A spring is fixedly connected between the lower side of each limit ring and the upper side of each sliding cylinder. Each spring is sleeved on the outside of the fine-tuning screw.

[0007] As a further improvement to the above solution, the coating frame mechanism includes sealing gaskets that are fixedly connected to both sides of the mounting plate, clamping plates that are fixedly connected to the outer sides of the two sealing gaskets, a limiting platform that is fixedly connected between the two clamping plates, the limiting platform being located below the mounting plate, and a coating mechanism being provided between the mounting plate and the limiting platform.

[0008] As a further improvement to the above solution, the coating mechanism includes a groove opened on the limiting platform, a boss fixedly connected to the lower part of the mounting plate, a material storage cavity opened inside the boss, a filling pipe connected to the upper part of the mounting plate, the filling pipe passing downward through the mounting plate and communicating with the upper part of the material storage cavity.

[0009] As a further improvement to the above solution, a coating groove is provided on the lower side of the boss, and the mounting plate, the boss and the limiting platform are arranged to form a limiting and shaping channel.

[0010] As a further improvement to the above solution, the scraper coating mechanism includes a baffle plate fixedly connected to the lower side of the mounting plate, and a scraper is fixedly connected to the side of the mounting plate away from the roller.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model uses multiple staggered circular rollers installed on the shaping table to press, shape, and flatten the optical film entering the limiting shaping channel from the top. After passing through the limiting shaping channel, it can ensure that the surface of the optical film is effectively flattened and shaped before coating, thereby achieving a more uniform and sufficient coating effect.

[0013] 2. This utility model has a groove on the limiting platform. When the coating solvent thickness left by the coating groove is too large, the scraper and the baffle can return the excess coating solvent to the groove, which can be used for subsequent optical film coating. This can save coating solvent. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of a dynamic optical film production coating device provided by this utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the exploded structure;

[0016] Figure 3 for Figure 2 A sectional view;

[0017] Figure 4 This is a schematic diagram of the structure of the mounting plate (6) in this embodiment;

[0018] Figure 5 This is a schematic diagram of the structure of the shaping table (11) in this embodiment;

[0019] Figure 6 for Figure 5 A bottom view.

[0020] Explanation of key symbols:

[0021] 1. Clamping plate; 2. Limiting platform; 3. Fixing plate; 4. Fine-tuning screw; 5. Filling pipe; 6. Mounting plate; 7. Boss; 8. Sealing gasket; 9. Limiting ring; 10. Slide cylinder; 11. Shaping table; 12. Culvert; 13. Material storage chamber; 14. Coating groove; 15. Groove; 16. Circular roller; 17. Baffle plate; 18. Scraper; 19. Spring; 20. Limiting and shaping channel. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] Example:

[0024] Please combine Figure 1 - Figure 6 This embodiment of a dynamic optical film production coating apparatus includes a mounting plate 6, on which a groove 12 is formed, such as... Figure 3 As shown, the culvert 12 is a through-type structure, and a shaping table 11 is slidably connected to the inner side of the culvert 12. The edges of the shaping table 11 are rounded. Multiple rollers 16 are rotatably connected to the lower side of the shaping table 11. Please refer to... Figure 6 As shown, in this embodiment, the multiple rows of circular rollers 16 are staggered. The surface of the optical film can be shaped by the gravity of the rollers 16 themselves. A buffer mechanism is provided on the upper side of the shaping table 11, a coating frame mechanism is provided below the mounting plate 6, and a scraper coating mechanism is provided on the side of the mounting plate 6 away from the shaping table 11.

[0025] Please combine Figure 5 and Figure 3As shown, in this embodiment, the buffer mechanism includes two sliding cylinders 10 fixedly connected to the upper side of the shaping stage 11. Each sliding cylinder 10 has a fine-tuning screw 4 slidably connected to its inner side. A fixing plate 3 is fixedly connected to the upper side of the mounting plate 6. The two fine-tuning screws 4 are threadedly connected to the fixing plate 3. Each fine-tuning screw 4 is rotatably connected to a limiting ring 9. When the fine-tuning screw 4 is rotated to adjust the height, the fine-tuning screw 4 rotates inside the limiting ring 9. A spring 19 is fixedly connected between the lower side of each limiting ring 9 and the upper side of each sliding cylinder 10. Each spring 19 is sleeved on the outside of the fine-tuning screw 4. Through the above technical solution, the shaping pressure applied by the shaping stage 11 to the optical film from the upper side can be adjusted according to the optical film of different thicknesses. When mechanical interference occurs, the spring 19 can buffer and protect the structure of the optical film itself.

[0026] Please combine Figure 2 As shown, the coating frame mechanism includes sealing gaskets 8 fixedly connected to both sides of the mounting plate 6. These gaskets 8 prevent the solvent required for coating from leaking from both sides, creating a sealed space to prevent contamination from external foreign matter. Clamping plates 1 are fixedly connected to the outer sides of the two sealing gaskets 8, and a limiting platform 2 is fixedly connected between the two clamping plates 1. The limiting platform 2 is located below the mounting plate 6, and a coating mechanism is installed between the mounting plate 6 and the limiting platform 2. Please refer to... Figure 1 and Figure 2 As shown, multiple mounting bolts are provided on both sides of the clamping plate 1, which can be used to quickly disassemble the clamping plate 1 from the limiting platform 2 and the mounting plate 6.

[0027] Please combine Figure 3 As shown, the coating mechanism includes a groove 15 opened on the limiting platform 2. The groove 15 and the outer contour of the boss 7 cooperate with each other. The boss 7 is fixedly connected to the lower part of the mounting plate 6. The inside of the boss 7 is provided with a material storage cavity 13. It should be noted that in this embodiment, the height of the uppermost side of the material storage cavity 13 is lower than the height of the uppermost side of the limiting platform 2. According to the principle of the connecting pipe, it can be known that the coating solvent accumulated inside the groove 15 will not overflow from the outside of the limiting platform 2. The upper side of the mounting plate 6 is connected to the filling pipe 5. The filling pipe 5 has a flange plate on the outside, which can be connected to a third-party solvent. The filling pipe 5 passes downward through the mounting plate 6 and is connected to the upper side of the material storage cavity 13.

[0028] Please combine Figure 3 and Figure 4 As shown, a coating groove 14 is provided on the lower side of the boss 7. The mounting plate 6, the boss 7, and the limiting platform 2 enclose and form a limiting and shaping channel 20. Please refer to... Figure 2 As shown, the limiting and shaping channel 20 is opened in a V-shape.

[0029] Please combine Figure 4As shown, the scraper coating mechanism includes a baffle plate 17 fixedly connected to the lower side of the mounting plate 6. The protrusions installed on the baffle plate 17 are staggered, which can rebalance the solvent on the surface of the optical film and help to coat evenly. A scraper 18 is fixedly connected to the side of the mounting plate 6 away from the roller 16.

[0030] The implementation principle of the dynamic optical film production coating device in this embodiment is as follows: The positioning bolts are removed from both sides of the clamping plate 1, the limiting platform 2 is removed, and the optical film strip is placed below the boss 7. Then, the limiting platform 2 is pushed up again so that the optical film is positioned between the limiting platform 2 and the boss 7. Then, the solvent required for coating is added into the storage chamber 13 through the filling pipe 5. The solvent flows down from the coating groove 14 to the upper surface of the optical film. Simultaneously, the operator can adjust the height of the limiting ring 9 by rotating the fine-tuning screw 4. The spring 19 on the lower side of the limiting ring 9 drives the shaping table 11 to move up and down, thereby adjusting the shaping pressure applied by the shaping table 11 to the upper surface of the optical film. When the optical film flows through the limiting shaping channel 20, the upper roller 16 can shape the upper surface of the optical film. After shaping, the optical film can be immersed in the coating solvent at the coating groove 14, and then move upward at an angle. At the baffle 17, the coating solvent on the surface is evenly distributed longitudinally. Finally, the excessive coating solvent thickness is scraped off by the scraper 18.

[0031] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A dynamic optical film production coating apparatus comprising a mounting plate (6), characterized in that, The mounting plate (6) has a duct (12) with a shaping table (11) slidably connected to the inner side of the duct (12). Multiple rollers (16) are rotatably connected to the lower side of the shaping table (11). A buffer mechanism is provided on the upper side of the shaping table (11). A coating frame mechanism is provided below the mounting plate (6). A scraper coating mechanism is provided on the side of the mounting plate (6) away from the shaping table (11).

2. The dynamic optical film production coating apparatus as described in claim 1, characterized in that, The buffer mechanism includes multiple slide cylinders (10) fixedly connected to the upper side of the shaping table (11). Each slide cylinder (10) is slidably connected to a fine-tuning screw (4). A fixing plate (3) is fixedly connected to the upper side of the mounting plate (6). The multiple fine-tuning screws (4) are threadedly connected to the fixing plate (3). Each fine-tuning screw (4) is rotatably connected to a limit ring (9). A spring (19) is fixedly connected between the lower side of each limit ring (9) and the upper side of each slide cylinder (10). Each spring (19) is sleeved on the outside of the fine-tuning screw (4).

3. The dynamic optical film production coating apparatus as described in claim 1, characterized in that, The coating frame mechanism includes sealing gaskets (8) that are fixedly connected to both sides of the mounting plate (6). Clamping plates (1) are fixedly connected to the outer sides of the two sealing gaskets (8). A limiting platform (2) is fixedly connected between the two clamping plates (1). The limiting platform (2) is located below the mounting plate (6). A coating mechanism is provided between the mounting plate (6) and the limiting platform (2).

4. The dynamic optical film production coating apparatus as described in claim 3, characterized in that, The coating mechanism includes a groove (15) opened on the limiting platform (2), a boss (7) is fixedly connected to the lower part of the mounting plate (6), a storage cavity (13) is opened inside the boss (7), and a filling pipe (5) is connected to the upper side of the mounting plate (6). The filling pipe (5) passes downward through the mounting plate (6) and is connected to the upper side of the storage cavity (13).

5. The dynamic optical film production coating apparatus as described in claim 4, characterized in that, The lower side of the boss (7) is provided with a coating groove (14), and the mounting plate (6), the boss (7) and the limiting platform (2) are surrounded to form a limiting and shaping channel (20).

6. The dynamic optical film production coating apparatus as described in claim 1, characterized in that, The scraper coating mechanism includes a baffle plate (17) fixedly connected to the lower side of the mounting plate (6), and a scraper (18) is fixedly connected to the side of the mounting plate (6) away from the roller (16).

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