A coating apparatus for polarizing plate coating processing

Abstract

The utility model discloses a kind of coating equipment for polarizing sheet coating processing, belong to coating equipment field. Including coating plate, vertical plate, electric push rod, clamping plate, drive assembly and coating assembly. The coating plate top surface is smooth and even;Two vertical plates are oppositely arranged, and are respectively fixedly arranged on the coating plate;One end of the electric push rod is fixedly arranged on the vertical plate;The clamping plate is fixedly connected on the electric push rod, and is located at the end away from the vertical plate;The drive assembly is used to drive the coating plate linearly moves. In the process of driving coating plate to move by drive assembly, and coating by coating assembly, by being provided with electric push rod between two oppositely arranged vertical plates, it can be used to drive clamping plate linearly moves, cooperate the vertical plate / clamping plate of other side and hold and fix polarizing sheet located on coating plate, can guarantee the position accuracy of polarizing sheet in coating process, and then make coating quality meet the requirement.

Description

Technical Field

[0001] This utility model relates to the field of coating equipment, and in particular to a coating equipment for polarizing film coating processing. Background Technology

[0002] Polarizing films are the core light switch in liquid crystal displays (LCDs) and are crucial for displaying images in LCDs and OLEDs. Polarizing film coating equipment is a core process equipment in the manufacturing of new displays. Its core function is to transform optical functional materials into thin films with polarization characteristics through precision coating technology. Through a high-precision automated system, the polarizing coating liquid is applied to the substrate with submicron-level uniformity. After curing / stretching and other processes, an optical film with specific polarization characteristics is formed. At the same time, a pressure-sensitive adhesive layer is precisely laid on the release film to achieve zero-defect panel bonding. This equipment directly affects the optical performance and yield of devices such as rigid TFT-LCDs, flexible OLEDs, and quantum dot displays.

[0003] Polarizing film coating equipment precisely delivers coating material to the coating head, ensuring uniform adhesion to the substrate surface as it moves at a constant speed. After drying and curing, the desired functional coating is formed, thus completing the polarizing film coating process. However, existing coating equipment lacks positioning and constraint of the polarizing film during substrate delivery, leading to inaccurate coating position and displacement during the coating process. Utility Model Content

[0004] This invention provides a coating device for polarizing film coating processing, which can solve the problems of inaccurate coating position and displacement during the coating process in the existing coating devices.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A coating apparatus for polarizing film coating process, comprising:

[0007] A coated panel, wherein the top surface of the coated panel is smooth and flat;

[0008] Two upright plates are arranged opposite each other and fixedly mounted on the coating plate.

[0009] At least one electric push rod, one end of which is fixedly mounted on the upright plate;

[0010] At least one clamping plate is fixedly connected to the electric push rod and located at one end away from the upright plate;

[0011] A drive assembly for driving the coating plate to move linearly;

[0012] A coating assembly is used to coat the workpiece on the coating plate when the coating plate with the workpiece is moved to the position of the coating assembly.

[0013] In one embodiment of this utility model: the side of the clamp away from the upright plate is provided with an anti-slip recess.

[0014] In one embodiment of this utility model: a receiving groove is provided on the coating plate, and a roller is rotatably arranged in the receiving groove, the top surface of the roller being at the same height as the top surface of the coating plate.

[0015] In one embodiment of this utility model: the driving assembly includes a conveyor plate and a motor. A screw groove is provided in the conveyor plate, and a threaded rod is rotatably provided in the screw groove. The motor drives and connects to the threaded rod. At least one nut is threaded onto the threaded rod, and the nut is fixedly connected to the coating plate by a connecting block.

[0016] In one embodiment of this utility model: a protective shell is fixedly provided on the outside of the motor.

[0017] In one embodiment of this utility model: a track groove is provided on the conveyor plate, and the track groove and the screw groove are arranged in parallel. A slide rod is fixedly provided in the track groove, and a slider is slidably sleeved on the slide rod. The slider is fixedly connected to the coating plate by a connecting block.

[0018] In one embodiment of this utility model: the conveyor plate is fixedly mounted on the workbench, and a support assembly is provided at the bottom of the workbench.

[0019] In one embodiment of this utility model: the support assembly includes multiple support legs, and a diagonal brace is fixedly arranged between two adjacent support legs.

[0020] In one embodiment of this utility model: the coating assembly includes a mounting frame, an air rod, and a coating template. The mounting frame is fixedly connected to a conveyor plate. One end of the air rod is fixedly connected to the mounting frame, and the other end is fixedly connected to the coating template. The air rod is used to drive the coating template to move linearly.

[0021] In one embodiment of this utility model: a connecting rod is fixedly installed at the end of the air rod away from the mounting frame, and a slot is provided on the side of the end of the connecting rod away from the air rod; a connecting groove matching the connecting rod is provided inside the coating template, and multiple limiting grooves are provided inside the coating template outside the connecting groove, and a limiting bead is provided in each limiting groove, and a spring a is connected to the limiting bead, the spring a being used to provide elastic force in the direction of the center position of the connecting groove.

[0022] The coating equipment for polarizing film coating according to this utility model has at least the following technical effects:

[0023] In this application, during the process of driving the coating plate to move by the drive assembly and coating by the coating assembly, an electric push rod is provided between two opposing vertical plates. This push rod can be used to drive the clamping plate to move linearly. In conjunction with the vertical plate / clamping plate on the other side, the polarizer located on the coating plate is clamped and fixed. This ensures the positional accuracy and stability of the polarizer during the coating process, thereby ensuring that the coating quality meets the requirements. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood in conjunction with the following description of the embodiments with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. Wherein:

[0025] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0026] Figure 2 This is a three-dimensional structural diagram of the coated plate portion in an embodiment of this utility model;

[0027] Figure 3 This is a three-dimensional structural diagram of the driving component according to an embodiment of the present utility model;

[0028] Figure 4 This is a schematic diagram of the coating component in an embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Workbench;

[0031] 2. Coating assembly; 21. Mounting bracket; 22. Air spring; 23. Coating template; 24. Limiting groove; 25. Spring a; 26. Limiting bead; 27. Slot;

[0032] 3. Drive assembly; 31. Conveyor plate; 32. Protective shell; 33. Motor; 34. Track groove; 35. Screw groove; 36. Slide rod; 37. Slider; 38. Connecting block; 39. Threaded rod; 310. Nut; 311. Painting plate; 312. Receiving groove; 313. Roller; 314. Vertical plate; 315. Electric push rod; 316. Clamping plate; 317. Spring b; 318. Anti-slip recess;

[0033] 4. Support components; 41. Support legs; 42. Diagonal bracing rods. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] Reference Figures 1 to 4 This utility model provides an embodiment of a coating device for polarizing film coating processing, including a worktable 1. The worktable 1 is made of high-strength alloy material, which can provide stable support for the entire mechanism. A coating component 2 and a drive component 3 are fixedly connected to the top surface of the worktable 1. The coating component 2 is used to realize the coating operation in the polarizing film coating process. The drive component 3 can drive the coating plate 311 carrying the polarizing film to move. A support component 4 is fixedly connected to the bottom of the worktable 1. The support component 4 is used to support the worktable 1 and further enhance the overall stability of the mechanism. The support component 4 includes support legs 41, which are made of thick-walled steel pipes with strong load-bearing capacity. The top of the support legs 41 is fixedly connected to the bottom of the worktable 1. The bottom edge is designed with a smooth chamfer to avoid scratching the ground when placed. Four support legs 41 are fixedly connected to the bottom of the worktable 1. The four support legs 41 are distributed in a rectangle to enhance the overall stability. Diagonal braces 42 are fixedly connected to opposite sides in the vertical direction. The diagonal braces 42 are made of angle steel to further improve the structural strength of the support legs 41.

[0036] Please see Figure 1-3In one embodiment of this utility model, the drive assembly 3 includes a conveyor plate 31. The conveyor plate 31 can be made of wear-resistant cast iron, and its surface is precision polished. The bottom is fixedly connected to the top of the workbench 1. One end of the conveyor plate 31 is fixedly connected to a protective shell 32. The protective shell 32 can be made of insulating plastic, which can effectively protect the internal parts from external dust and impact. A motor 33 is fixedly installed inside the protective shell 32. The motor 33 can be a servo motor, which has the characteristics of stable speed and precise control. The drive end of the motor 33 drives the threaded rod 39. The threaded rod 39 can be made of high-strength steel, and the surface of the threaded rod 39 is provided with precision threads. Specifically, the conveyor plate 31 has a screw groove 35, the size of which is adapted to the threaded rod 39, providing installation space for the threaded rod 39. The threaded rod 39 is rotatably mounted in the screw groove 35. The external thread of the threaded rod 39 is connected to two nuts 310, which are made of wear-resistant steel and precisely fit with the threads of the threaded rod 39. A connecting block 38 is fixedly connected to the top of each nut 310, and the top of the connecting block 38 is fixedly connected to the bottom surface of the coating plate 311. In use, the nuts 310 and the threaded rod 39 cooperate to form a screw drive structure to drive the coating plate 311 to move linearly.

[0037] Please see Figure 1-3 In one embodiment of this utility model, track grooves 34 are provided on both sides of the screw groove 35 on the conveyor plate 31. A sliding rod 36 is fixedly connected within the track groove 34. The sliding rod 36 is chrome-plated to reduce friction during sliding. At least one slider 37 is slidably mounted on each sliding rod 36. The slider 37 can be made of wear-resistant alloy material and can slide smoothly along the sliding rod 36. A connecting block 38 is fixedly connected to the top of each slider 37. The connecting block 38 serves to fix the slider 37 to the coating plate 311; that is, one end of the connecting block 38 is fixedly connected to the slider 37, and the other end is fixedly connected to the coating plate 311. By providing a guiding structure with the sliding rod 36, slider 37, and corresponding connecting block 38, the movement of the coating plate 311 becomes more stable.

[0038] Reference Figure 1 , Figure 2 , Figure 4The coating assembly 2 includes a mounting frame 21, which can be forged from high-strength aluminum alloy, featuring light weight and high rigidity. The bottom of both sides of the mounting frame 21 is fixedly connected to the top surface of the conveyor plate 31, and a pneumatic rod 22 is fixedly connected to the bottom of the middle. The pneumatic rod 22 can be a pneumatic telescopic rod, which can achieve smooth telescopic movement. A connecting rod is fixedly connected to the driving end (lower end) of the pneumatic rod 22. The connecting rod can be made of solid steel and plays the role of transmitting power. A slot 27 is opened on the side of the connecting rod away from the pneumatic rod 22. The shape of the slot 27 matches the limiting bead 26, which facilitates the insertion of the limiting bead 26. The limiting bead 26 is slidably connected inside the coating template 23. The limiting bead 26 is made of high-hardness alloy material with a smooth surface. A spring a25 is fixedly connected to the limiting bead 26. The spring a25 is a compression spring that can provide continuous elastic force. The top two sides of the coating plate 311 are fixedly connected to upright plates 314. The upright plates 314 are welded from steel plates and serve to support the electric push rods 315. Two electric push rods 315 are fixedly connected to the inner side. The electric push rods 315 can provide stable thrust. The drive end of the electric push rods 315 is fixedly connected to clamping plates 316. The clamping plates 316 are made of hard rubber wrapped around metal plates to avoid damaging the polarizer. The inner side of the clamping plates 316 is provided with anti-slip recesses 318, which can increase the friction with the polarizer and prevent slippage.

[0039] Reference Figures 1 to 4 The 311 coated plate has a smooth and flat surface, which is suitable for the placement of polarizers and coating operations. A receiving groove 312 is provided in the middle of the top surface of the coating plate 311. The receiving groove 312 is a long strip groove that provides installation and movement space for the roller 313. A shaft is rotatably installed inside the receiving groove 312, and the roller 313 is fixedly connected to the outside of the shaft. The shaft is made of high-strength steel and can support the rotation of the roller 313. The surface of the roller 313 is covered with wear-resistant rubber to reduce friction damage with the polarizer. The outer edge is designed with a smooth chamfer to avoid scratching the polarizer. Two springs b317 are fixedly installed between the clamping plate 316 and the upright plate 314. The springs b317 are tension springs that can buffer the clamping force of the clamping plate 316. The outer ends of the two springs b317 are fixedly connected to the inner side of the upright plate 314. (In actual application, a compression spring can also be installed between the clamping plate 316 and the upright plate 314 on one side, and the electric push rod 315 can be installed between the clamping plate 316 and the upright plate 314 on the other side. The clamping plates 316 on both sides cooperate to clamp the polarizer.)

[0040] Reference Figures 1 to 4The protective shell 32 is externally fixedly connected to the inside of the workbench 1, enhancing the stability of the protective shell 32 installation. Its outer edges are smoothly chamfered to prevent accidental scratches to operators. The protective shell 32 is fixedly connected to the outside of the motor 33, providing all-around protection for the motor 33. The drive end of the motor 33 is fixedly connected to the left end of the threaded rod 39, enabling it to rotate synchronously. The rotation mechanism of the threaded rod 39 is located inside the screw groove 35, ensuring stability during rotation. The bottom of the air spring 22 is detachably connected to a coating template 23, facilitating the replacement of different templates according to coating requirements. The coating template 23 has a connecting groove that matches the connecting rod. Inside the coating template 23, outside the connecting groove, there are five limiting grooves 24. The positions of the limiting grooves 24 correspond to the slots 27. Springs a25 are fixedly connected inside each of the five limiting grooves 24 to provide elastic support for the limiting beads 26. One end of the spring a25 is fixedly connected to the limiting bead 26, so that the limiting bead 26 can abut against the slot 27, realizing the detachable installation and connection of the coating template 23, which facilitates the quick positioning and installation of the coating template 23. The outer edge of the coating template 23 has a smooth chamfer design to improve the safety of use.

[0041] The working principle of this utility model:

[0042] First, the polarizer to be coated is placed on the coating plate 311. At this time, the electric push rod 315 drives the clamping plate 316 to move inward. With the elastic action of the spring b317, the clamping plate 316 tightly clamps the polarizer. The anti-slip recess 318 can effectively prevent the polarizer from sliding during processing. Then, the motor 33 is started, and the motor 33 drives the threaded rod 39 to rotate in the screw groove 35. Since the threaded rod 39 is threadedly connected to the nut 310, and the nut 310 is fixedly connected to the coating plate 311 through the connecting block 38, the slider 37 slides on the slide rod 36, so that the coating plate 311 moves smoothly along the track groove 34. Meanwhile, the roller 313 can roll freely in the receiving groove 312. The smooth chamfer design of its outer edge can avoid scratching the polarizer and effectively reduce resistance and friction when picking up and putting down the polarizer. When the polarizer moves below the coating template 23, the air spring 22 drives the coating template 23 to descend to the appropriate position. The limiting bead 26, under the action of the spring a25, tightly engages with the slot 27 to ensure the precise positioning of the coating template 23. At this point, the polarizer can be coated. The support legs 41 and the diagonal brace 42 of the support assembly 4 provide stable support for the entire mechanism. The protective shell 32 protects the motor 33, and its smooth chamfered outer edge design prevents collision damage. After coating is completed, the motor 33 continues to drive the coating plate 311 to move to the discharge position, achieving precise positioning and efficient processing of the polarizer coating.

[0043] When it is necessary to replace or repair the coating template 23, remove the coating template 23 downwards, take out the new one, and then align it with the slot 27 opened on the air rod 22 to insert the new coating template 23, thus completing the replacement and disassembly of the mold. After use, the coating template 23 can also be disassembled in the same way to protect the mold and facilitate carrying and storage.

[0044] The foregoing has provided a detailed description of one embodiment of the present invention, but the description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the scope of the claims of the present invention.

[0045] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0046] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A coating equipment for polarizing film coating processing, characterized in that, include: The top surface of the coated plate (311) is smooth and flat; Two upright plates (314) are arranged opposite each other and are respectively fixed on the coating plate (311); At least one electric push rod (315), one end of which is fixedly mounted on the upright plate (314); At least one clamping plate (316) is fixedly connected to the electric push rod (315) and located at one end away from the upright plate (314); A drive assembly (3) is used to drive the coating plate (311) to move linearly; The coating assembly (2) is used to coat the workpiece on the coating plate (311) when the coating plate (311) with the workpiece is moved to the position of the coating assembly (2).

2. The coating equipment for polarizing film coating processing according to claim 1, characterized in that, The side of the clamp (316) away from the upright plate (314) is provided with an anti-slip recess (318).

3. The coating equipment for polarizing film coating processing according to claim 1, characterized in that, The coating plate (311) is provided with a receiving groove (312), and a roller (313) is rotatably arranged in the receiving groove (312). The top surface height of the roller (313) is the same as the top surface height of the coating plate (311).

4. The coating equipment for polarizing film coating processing according to claim 1, characterized in that, The drive assembly (3) includes a conveyor plate (31) and a motor (33). A screw groove (35) is provided in the conveyor plate (31). A threaded rod (39) is rotatably provided in the screw groove (35). The motor (33) drives and connects to the threaded rod (39). At least one nut (310) is threaded on the threaded rod (39). The nut (310) is fixedly connected to the coating plate (311) through a connecting block (38).

5. The coating equipment for polarizing film coating according to claim 4, characterized in that, A protective shell (32) is fixedly installed on the outside of the motor (33).

6. The coating equipment for polarizing film coating according to claim 4, characterized in that, The conveyor plate (31) is provided with a track groove (34), and the track groove (34) and the screw groove (35) are arranged in parallel. A slide rod (36) is fixedly installed in the track groove (34), and a slider (37) is slidably sleeved on the slide rod (36). The slider (37) is fixedly connected to the coating plate (311) through a connecting block (38).

7. The coating equipment for polarizing film coating processing according to claim 4, characterized in that, The conveyor plate (31) is fixedly mounted on the workbench (1), and a support assembly (4) is provided at the bottom of the workbench (1).

8. The coating equipment for polarizing film coating processing according to claim 7, characterized in that, The support assembly (4) includes multiple support legs (41), and diagonal braces (42) are fixedly arranged between two adjacent support legs (41).

9. The coating equipment for polarizing film coating according to claim 4, characterized in that, The coating assembly (2) includes a mounting frame (21), an air spring (22), and a coating template (23). The mounting frame (21) is fixedly connected to the conveyor plate (31). One end of the air spring (22) is fixedly connected to the mounting frame (21), and the other end is fixedly connected to the coating template (23). The air spring (22) is used to drive the coating template (23) to move linearly.

10. The coating equipment for polarizing film coating according to claim 9, characterized in that, A connecting rod is fixedly installed at the end of the air rod (22) away from the mounting bracket (21), and a slot (27) is provided on the side of the end of the connecting rod away from the air rod (22); a connecting groove matching the connecting rod is provided in the coating template (23), and multiple limiting grooves (24) are provided inside the coating template (23) outside the connecting groove. A limiting bead (26) is provided in each limiting groove (24), and a spring a (25) is connected to the limiting bead (26). The spring a (25) is used to provide elastic force in the direction of the center position of the connecting groove.

Images