Full-automatic optical film grommet folding device

Abstract

The utility model relates to film material ear folding equipment technical field, especially full -automatic optical membrane piece is with ear folding device. To solve the problem that the ear folding process is easy to damage the membrane piece in the prior art of loading positioning precision is poor. Including: positioning loading component, set up on the workstation, be used for separating one by one to the superposed optical membrane piece and carry out accurate positioning based on the right angle reference, ear folding processing component, set up on the workstation, be used for receiving the membrane piece through the positioning, and through the oblique and horizontal combination's push -and -press action complete the bending of the membrane piece ear department, the unloading component, set up on the workstation, be used for removing the optical membrane piece that completes the ear folding, wherein the positioning loading component removes the single piece membrane piece after positioning to the ear folding processing component, removes by the unloading component after the ear folding processing, forms the continuous automation operation. The device is high in integration, and is strong in adaptability.

Description

Technical Field

[0001] This utility model relates to the technical field of film folding equipment, and in particular to a fully automatic folding device for optical films. Background Technology

[0002] Optical films are key functional components in optoelectronic devices such as liquid crystal display modules. During their production, it is often necessary to perform "earing" treatment on specific edges of the film, that is, to bend local areas to a specific angle to meet the requirements of subsequent assembly, fixing, or circuit connection.

[0003] Currently, several technical bottlenecks remain in the processing of folded ears for optical films within the industry. Firstly, insufficient feeding and positioning accuracy is a major problem. The films themselves are soft, prone to static electricity, and easily scratched. Traditional vibratory feeders or friction feeding methods easily cause scratches or dust accumulation on the film surface, thus affecting the optical performance of the final product. Furthermore, the films must be precisely positioned before processing, but existing equipment often uses simple stops for unidirectional limiting, resulting in poor positioning accuracy and repeatability, which cannot meet the process requirements of high-precision folded ears.

[0004] Secondly, in the folding process itself, the common practice is to use a single vertical downward pressure or horizontal bending action. This simple bending method, due to its one-time, large-curvature deformation, is prone to stress concentration at the root of the bend, leading to micro-cracks, whitening, or even breakage of the membrane material, severely reducing product yield and reliability. Furthermore, existing equipment typically has poor adaptability to membranes of different sizes or with different folding requirements, making adjustments cumbersome and time-consuming, significantly impacting production efficiency and equipment utilization.

[0005] Therefore, there is an urgent need in this field for a dedicated folding device that can achieve automated loading and unloading, has high-precision positioning function, can ensure the quality of optical film folding ears through a more gentle and scientific bending process, and also has good flexibility and adaptability. Utility Model Content

[0006] The purpose of this invention is to provide a fully automatic folding device for optical films, so as to solve the problems of poor feeding and positioning accuracy and easy damage to the film in the existing technology.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a fully automatic folding lug device for optical films, including: The positioning and feeding component is set on the worktable and is used to separate the stacked optical films one by one and to accurately position them based on a right angle reference. The ear-folding processing component is set on the worktable to receive the positioned diaphragm and complete the bending of the ear of the diaphragm through a combination of oblique and horizontal pushing actions; The unloading assembly, set on the worktable, is used to remove the optical film with the folded ears completed; The positioning and feeding component transfers the positioned single film to the folding processing component, and after folding processing, it is removed by the unloading component, forming a continuous automated processing operation.

[0008] Furthermore, the positioning and feeding assembly includes: A loading platform used to support stacked optical films; A lifting motor, the drive end of which is connected to the material placement platform, is used to drive the material placement platform to move up and down. A positioning plate, the bottom end of which is fixed to the worktable, and the upper end of which passes through a positioning hole opened on the material placement table; the positioning plate is used to limit the two adjacent right-angled sides of the optical film and form a positioning reference. An alignment plate is provided, the bottom end of which is slidably mounted on the worktable, and the upper end of which is movably inserted through an alignment hole opened on the material placement table, for applying a pushing force from the other side of the optical film to make the optical film fit tightly against the positioning plate.

[0009] Furthermore, the bottom of the alignment plate is connected to a linkage plate, which is slidably mounted on a guide rail fixed to the worktable via a slider; a lead screw is threadedly connected to the linkage plate, which is supported on the worktable by a bearing assembly, and a knob is provided at one end of the lead screw. By rotating the knob, the linkage plate and the alignment plate are driven to move synchronously to adapt to optical films of different sizes.

[0010] Furthermore, the positioning and feeding assembly also includes a suction and transfer mechanism for picking up and transferring the top single optical film on the material placement platform to the folding ear processing assembly; The material suction and transplanting mechanism includes: The first slide plate is slidably mounted on the top of the worktable via a slide rail; A lifting cylinder is fixedly installed on the first sliding plate; A suction cup mounting plate is connected to the drive end of the lifting cylinder; Several negative pressure suction heads are disposed on the suction cup mounting plate for adsorbing optical films; A guide post is disposed on the first sliding plate and connected to the suction cup mounting plate to provide guidance for the lifting and lowering movement of the suction cup mounting plate; A driving component is used to drive the first slide plate to perform horizontal reciprocating motion along the slide rail.

[0011] Furthermore, the driving component includes: A geared motor is located on the side of the first slide plate; A pulley is connected to the drive end of the geared motor; A belt is fitted onto the pulley; A connecting plate is fixed to the belt and connected to the first sliding plate via an additional plate; The geared motor drives the belt to move, thereby causing the first slide plate to move horizontally.

[0012] Furthermore, the folding ear processing assembly includes: a folding ear processing platform and a folding ear mechanism disposed on the side of the folding ear processing platform; The folding ear processing platform is used to receive the optical film from the positioning and feeding assembly. The folding ear processing platform has a sharp corner on one side edge near the folding ear mechanism, and a positioning curved panel is provided on the outer edge of the sharp corner.

[0013] Furthermore, the folding ear processing assembly also includes a precision positioning mechanism, which comprises: An alignment rod is provided on the side of the folding ear processing platform opposite to the sharp corner. The folding ear processing platform has a groove on the side facing the alignment rod to allow the alignment rod to move back and forth. The alignment rod cooperates with the positioning curved panel to accurately position the optical film.

[0014] Furthermore, the alignment rod is connected to the slider of the first linear module through an alignment rod fixing plate to realize the forward and backward movement of the alignment rod; the alignment rod fixing plate has an elongated hole, and by adjusting the fixed position of the alignment rod in the elongated hole, the alignment rod can be finely adjusted in the left and right directions.

[0015] Furthermore, a crossbeam frame is provided below the folding ear processing platform, the folding ear mechanism is fixedly connected to the crossbeam frame, and the crossbeam frame is slidably mounted on the second linear module via a slider at its bottom to adjust the front and rear position of the folding ear mechanism.

[0016] Furthermore, a limiting groove is formed on the crossbeam along its length; the folding lug mechanism is slidably disposed in the limiting groove via the second sliding plate at the bottom; an oblong hole is formed on the crossbeam, and by setting a fastener in the oblong hole, the second sliding plate and the folding lug mechanism above it are limited and fixed on the crossbeam, so as to realize the coarse adjustment and locking of the left and right positions of the folding lug mechanism.

[0017] Furthermore, the folding mechanism includes: The pressing section includes a top pressing cylinder, the drive end of which is connected to an upper pressing block for pressing down and fixing the optical film before the folding operation. The inclined push section includes an inclined push cylinder, the drive end of which is connected to an inclined push head. The front end of the inclined push head is arc-shaped and is used to cut into and initially bend the ear of the diaphragm after the diaphragm is pressed by the pressing section. The horizontal pusher includes a horizontal cylinder, the drive end of which is connected to a horizontal pusher head, for horizontally pushing after the oblique pusher has completed its action to completely bend the ear.

[0018] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: This invention relates to a fully automated folding device for optical films, integrating a positioning and feeding component, a folding processing component, and a unloading component to construct a complete automated processing system. The positioning and feeding component achieves precise positioning of the optical film using a right-angle reference positioning principle; the folding processing component employs a sequence of oblique pushing followed by horizontal pushing, effectively preventing film damage while ensuring folding accuracy. Through sequential linkage, the various components form a complete closed-loop process from automatic feeding, precise positioning, non-destructive folding, to flexible unloading, significantly improving production efficiency, product yield, and equipment adaptability.

[0019] Furthermore, by using a right-angle reference positioning mechanism consisting of a positioning plate and an alignment plate, combined with a precision positioning mechanism consisting of a curved panel and an alignment rod on the folding processing platform, the optical film is precisely positioned twice during the loading and folding station. At the same time, the folding process of "first oblique push and then flat push" is adopted, and the bending stress is dispersed by the guiding cut of the arc-shaped oblique push head, which fundamentally avoids the risk of damage to the film during the folding process and significantly improves the processing quality and yield.

[0020] Furthermore, by integrating lifting motors, material suction and transfer mechanisms, cylinders, and linear modules, the entire process of automatic diaphragm separation, precise feeding, ear folding processing, and finished product removal is automated and continuous, significantly reducing manual intervention, ensuring product consistency, and effectively improving production efficiency.

[0021] Furthermore, by setting an adjustable alignment plate, an adjustable folding lug mechanism for front-to-back and left-to-right positions, and a fine-tuning function for the alignment rod, the device can quickly and conveniently adapt to the processing needs of optical films of different sizes and specifications. Attached Figure Description

[0022] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings: Figure 1 This is a schematic diagram (I) of the fully automatic optical film folding device provided by this utility model; Figure 2 This is a schematic diagram (II) of the fully automatic optical film folding device provided by this utility model. Figure 3 This is a schematic diagram (a) of the material suction and transplanting mechanism provided by this utility model. Figure 4 This is a schematic diagram (II) of the material suction and transplanting mechanism provided by this utility model; Figure 5 This is a schematic diagram of the folding ear processing component provided by this utility model; Figure 6 This is a schematic diagram of the ear-removal mechanism provided by this utility model; The reference numerals in the attached figures are explained as follows: 1. Positioning and feeding assembly; 10. Feeding platform; 100. Positioning hole; 101. Alignment hole; 11. Lifting motor; 12. Positioning plate; 13. Alignment plate; 14. Linkage plate; 15. Slider; 16. Guide rail; 17. Lead screw; 18. Knob; 19. Suction and transfer mechanism; 190. First slide plate; 191. Slide rail; 192. Lifting cylinder; 193. Suction head mounting plate; 1930. Negative pressure suction head; 194. Guide column; 195. Drive component; 1950. Gear motor; 1951. Pulley; 1952. Belt; 1953. Connecting plate; 2. Folding ear processing assembly; 20. Folding ear processing platform; 200. Sharp corner; 201. Groove; 21. Folding ear mechanism; 210. Pressing mold part; 2100. Top pressing cylinder; 2101. Upper pressing block; 211. Inclined push part; 2110. Inclined push cylinder; 2111. Inclined push head; 212. Horizontal push part; 2120. Horizontal cylinder; 2121. Horizontal push head; 22. Positioning curved panel; 23. Alignment rod; 24. Alignment rod fixing plate; 240. Long hole; 25. First linear module; 26. Crossbeam frame; 260. Limiting groove; 261. Waist-shaped hole; 27. Second linear module; 28. Second sliding plate; 3. Feeding assembly. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] See Figures 1 to 6This example provides a fully automated folding device for optical films. The device includes a positioning and feeding assembly 1, a folding processing assembly 2, and a unloading assembly 3, aiming to realize a complete process flow for optical films from automatic feeding, precise positioning, non-destructive folding, to automatic unloading. All components are mounted on a worktable, forming a compact and fully functional automated processing system.

[0025] Specifically, the positioning and feeding assembly 1 is used to separate the stacked optical films one by one and accurately position them based on a right-angle reference. The positioning and feeding assembly 1 includes a placement platform 10, which is used to support the stacked optical films. The placement platform 10 is connected to the drive end of a lifting motor 11, so that the lifting motor 11 can drive the placement platform 10 to move up and down in the vertical direction, thereby causing the optical films on the placement platform 10 to move up and down.

[0026] The positioning plate 12 is fixed at its bottom end to the worktable and its upper end passes through the positioning hole 100 opened on the material placement table 10. In this example, the positioning plate 12 is set on the side of the adjacent right-angled side of the optical film, thereby limiting the two adjacent right-angled sides of the optical film and forming a stable right-angle positioning reference.

[0027] Alignment plate 13, the bottom end of which can be slidably disposed on the worktable, and the upper end of which can be movably disposed in the alignment hole 101 opened on the material placement table 10, so that during the sliding process, alignment plate 13 applies a pushing force from the other side of the optical film relative to positioning plate 12, so that the optical film is tightly attached to positioning plate 12.

[0028] In this example, a linkage plate 14 is connected to the bottom of the alignment plate 13 for sliding operations on the worktable. The linkage plate 14 is slidably mounted on the guide rail 16 fixed to the worktable via a slider 15. A lead screw 17 is threaded into the linkage plate 14 and supported on the worktable by a bearing assembly. A knob 18 is provided at one end of the lead screw 17. By rotating the knob 18, the linkage plate 14 can be driven to move synchronously with the alignment plate 13 connected to it, thereby aligning the optical films and adapting them to optical films of different sizes.

[0029] The positioning and feeding mechanism 1 in this example also includes a suction and transfer mechanism 19, used to pick up and transfer the topmost single-layer optical film on the placement table 10 to the folding ear processing assembly 2. The suction and transfer mechanism 19 includes a first slide plate 190, which is slidably mounted on the top of the worktable via a slide rail 191. A lifting cylinder 192 is fixedly mounted on the first slide plate 190, and the drive end of the lifting cylinder 192 is connected to a suction cup mounting plate 193. Several negative pressure suction heads 1930 are mounted on the suction cup mounting plate 193 for adsorbing the optical film. A guide post 194 is slidably mounted in the first slide plate 190 and connected to the suction cup mounting plate 193, thereby providing guidance for the lifting and lowering movement of the suction cup mounting plate 193.

[0030] To address how the first slide plate 190 drives the suction cup mounting plate 193 connected to it to perform horizontal reciprocating motion on the slide rail 101, a drive component 195 is provided in this example. This drive component 195 includes a geared motor 1950, which is located on the side of the first slide plate 190. A pulley 1951 is connected to the drive end of the geared motor 1950, and a belt 1952 is fitted onto the pulley 1951. A connecting plate 1953 is fixed to the belt 1952, and this connecting plate 1953 is connected to the first slide plate 190 via an additional plate (not shown in the figure). The geared motor 1950 drives the belt 1952, thereby causing the first slide plate 190 to move horizontally.

[0031] The folding ear processing component 2 is used to receive the positioned diaphragm and complete the bending operation of the optical diaphragm ear through a combination of oblique and horizontal pushing operations.

[0032] In this example, the ear-folding processing assembly 2 includes an ear-folding processing platform 20 and an ear-folding mechanism 21 disposed on the side of the ear-folding processing platform 20. The ear-folding processing platform 20 is used to receive the optical film from the aforementioned positioning and feeding assembly 1. The edge of the ear-folding processing platform 20 near the ear-folding mechanism 21 is provided with a sharp corner 200, and the outer edge of the sharp corner 200 is provided with a positioning curved panel 22. The design of the sharp corner 200 is intended to facilitate the effective transmission of the force applied by the pusher through the film to the sharp corner fulcrum during the ear-folding operation of the ear-folding processing assembly 2, thereby efficiently completing the bending action.

[0033] Furthermore, the ear-folding assembly in this example also includes a precision positioning mechanism, which comprises an alignment rod 23 disposed on the side of the ear-folding platform 20 opposite to the pointed corner 200. Simultaneously, a groove 201 is formed inwardly on the side of the ear-folding platform 20 facing the alignment rod 23, allowing the alignment rod 23 to move back and forth. Through the synergistic action of the alignment rod 23 and the aforementioned positioning curved panel 22, the optical film is precisely positioned, ensuring the positioning accuracy of the ear-folding operation.

[0034] In this example, the alignment rod 23 is connected to the slider of the first linear module 25 via an alignment rod fixing plate 24 to enable the alignment rod 23 to move back and forth. The alignment rod fixing plate 24 has an elongated hole 240. By adjusting the fixed position of the alignment rod 23 within the elongated hole 240, the position of the alignment rod 23 in the left-right direction can be finely adjusted. This multi-stage adjustment mechanism ensures that diaphragms of different specifications can obtain the optimal processing position.

[0035] A crossbeam frame 26 is provided below the folding ear processing platform 20. The bottom of the folding ear mechanism 21 is connected to the crossbeam frame 26, and the crossbeam frame 26 can be slidably mounted on the second linear module 27 via a slider at its bottom, thereby adjusting the front and rear positions of the folding ear mechanism 21.

[0036] A limiting groove 260 is provided on the crossbeam frame 26 along its length. The folding lug mechanism 21 can be slidably disposed in the limiting groove 260 via the second sliding plate 28 at its bottom. At the same time, a waist-shaped hole 261 is provided on the crossbeam frame 26. By setting a fastener in the waist-shaped hole 261, the second sliding plate 28 and the folding lug mechanism 21 above it are limited and fixed on the crossbeam frame 26, so as to realize the coarse adjustment and locking of the left and right position of the folding lug mechanism 21.

[0037] The folding mechanism 21 in this example includes a film pressing section 210, which includes a top pressing cylinder 2100, the drive end of which is connected to an upper pressing block 2101 for pressing down and fixing the optical film before the folding operation. It also includes a slanted pushing section 211 and a horizontal pushing section 212. The slanted pushing section 211 includes a slanted pushing cylinder 2110, the drive end of which is connected to a slanted pushing head 2111. In this example, the front end of the slanted pushing head 2111 is arc-shaped, which, without damaging the film surface, is used to slant in and initially bend the ear portion of the film after the film pressing section 210 has pressed the film. The horizontal pushing section 212 includes a horizontal cylinder 2120, the drive end of which is connected to a horizontal pushing head 2121, for horizontally advancing after the slanted pushing section 211 has completed its operation to bend the ear portion to 90° with the film.

[0038] In this example, the widths of the angled pusher head 2111 and the horizontal pusher head 2121 are greater than the width of the ear portion of the optical diaphragm, ensuring that the pusher head can completely cover and act on the entire ear portion of the diaphragm during its stroke. This avoids defects such as "segmented ear folding" or "incomplete ear folding at both ends" caused by insufficient pusher head length. A longer pusher head can evenly distribute the force across the entire ear width, avoiding excessive local stress. If the pusher head is too thin, the force will be concentrated in the middle, easily causing the ear ends to curl up or wrinkle.

[0039] In this example, the ear-folding processing component 2 is also equipped with a suction and transfer mechanism 19. This mechanism is exactly the same as the suction and transfer mechanism 19 in the positioning and feeding component 1 in terms of mechanical structure, driving method and working principle. Its function is to realize vacuum adsorption, precise lifting and horizontal transfer of the workpiece, and drop the diaphragm that has completed the ear-folding operation onto the unloading component 3 for collection.

[0040] Therefore, for the specific structure, connection relationship and working cycle of the second set of material suction and transfer mechanism 19, please refer to the detailed description of the material suction and transfer mechanism 19 in the positioning and feeding assembly 1 above in this manual, and it will not be repeated here.

[0041] In addition, in this example, to improve the processing quality, heating blocks (not shown in the figure) are provided on the sides of both the angled pusher 2111 and the horizontal pusher 2121, which are embedded with heating wires. This allows the angled pusher 2111 and the horizontal pusher 2121 to be heated during the ear-pushing operation, so that the diaphragm is easy to shape and does not bounce back when the ear is folded.

[0042] The feeding assembly 3 is used to remove and collect the optical film after the folding is completed. It is equipped with a feeding roller, on which a flexible conveyor belt is mounted. Once the folding process is complete, the optical film is released onto the conveyor belt surface. The feeding roller rotates under the drive of a motor, causing the flexible conveyor belt to move at a constant speed. The flexible conveyor belt (typically made of low-hardness, high-friction materials such as food-grade silicone or polyurethane) effectively prevents hard scratches or collisions with the already completed, intricate folding structure of the optical film due to its soft surface, ensuring the product remains undamaged during the final output stage.

[0043] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A fully automatic optical film folding device, comprising a worktable, characterized in that, Also includes: The positioning and feeding component (1) is set on the worktable and is used to separate the stacked optical films one by one and to accurately position them based on the right angle reference. The ear-folding processing component (2) is set on the workbench to receive the positioned diaphragm and complete the bending of the ear of the diaphragm through a combination of oblique and horizontal pushing action; The unloading component (3) is set on the worktable and is used to remove the optical film with the folded ear completed; The positioning and feeding component (1) transfers the positioned single film to the folding processing component (2), and after folding processing, it is removed by the unloading component (3), forming a continuous automated processing operation.

2. The fully automatic optical film folding device according to claim 1, characterized in that, The positioning and feeding assembly (1) includes: A material placement platform (10) is used to support stacked optical films; A lifting motor (11) is provided, the drive end of which is connected to the material placement platform (10) and is used to drive the material placement platform (10) to move up and down. Positioning plate (12), the bottom end of which is fixed on the workbench, and the upper end of which is inserted into the positioning hole (100) opened on the material placement table (10); the positioning plate (12) is used to limit the two adjacent right-angled sides of the optical film and form a positioning reference. Alignment plate (13), the bottom end of which is slidably disposed on the worktable, and the upper end of which is movably disposed in the alignment hole (101) opened on the material placement table (10), for applying a pushing force from the other side of the optical film to make the optical film fit tightly against the positioning plate (12).

3. The fully automatic optical film folding device according to claim 2, characterized in that, The bottom of the alignment plate (13) is connected to a linkage plate (14), which is slidably mounted on a guide rail (16) fixed on the workbench via a slider (15). A lead screw (17) is threaded into the linkage plate (14), which is supported on the workbench by a bearing assembly. A knob (18) is provided at one end of the lead screw (17). By rotating the knob (18), the linkage plate (14) and the alignment plate (13) are driven to move synchronously to adapt to optical films of different sizes.

4. The fully automatic optical film folding device according to claim 2, characterized in that, The positioning and feeding assembly (1) also includes a material suction and transfer mechanism (19) for picking up and transferring the top single optical film on the material placement platform (10) to the folding ear processing assembly (2). The material suction and transplanting mechanism (19) includes: The first slide plate (190) is slidably mounted on the top of the worktable via a slide rail (191); The lifting cylinder (192) is fixedly installed on the first slide plate (190); The suction cup mounting plate (193) is connected to the drive end of the lifting cylinder (192); Several negative pressure suction heads (1930) are disposed on the suction cup mounting plate (193) for adsorbing optical films; A guide post (194) is disposed on the first slide plate (190) and connected to the suction cup mounting plate (193) to provide guidance for the lifting and lowering movement of the suction cup mounting plate (193); A drive component (195) is used to drive the first slide plate (190) to make horizontal reciprocating motion along the slide rail (191).

5. The fully automatic optical film folding device according to claim 4, characterized in that, The drive component (195) includes: A geared motor (1950) is disposed on the side of the first slide plate (190); The pulley (1951) is connected to the drive end of the geared motor (1950); A belt (1952) is fitted onto the pulley (1951); A connecting plate (1953) is fixed to the belt (1952) and connected to the first sliding plate (190) via an additional plate; The geared motor (1950) drives the belt (1952) to move, thereby causing the first slide plate (190) to move horizontally.

6. The fully automatic folding lug device for optical films according to claim 1, characterized in that, The folding ear processing assembly (2) includes: a folding ear processing platform (20) and a folding ear mechanism (21) disposed on the side of the folding ear processing platform (20); The folding processing platform (20) is used to receive the optical film from the positioning and feeding assembly (1). The folding processing platform (20) has a sharp corner (200) on one side edge near the folding mechanism (21), and a positioning curved panel (22) is provided on the outer edge of the sharp corner (200).

7. The fully automatic optical film folding device according to claim 6, characterized in that, The folding ear processing assembly (2) further includes a precision positioning mechanism, which includes: Alignment rod (23) is set on the side of the folding ear processing platform (20) opposite to the sharp corner (200). The folding ear processing platform (20) has a groove (201) on the side facing the alignment rod (23) for the alignment rod (23) to move back and forth. The alignment rod (23) cooperates with the positioning curved panel (22) to accurately position the optical film.

8. The fully automatic optical film folding device according to claim 6, characterized in that, A crossbeam frame (26) is provided below the folding ear processing platform (20). The folding ear mechanism (21) is fixedly connected to the crossbeam frame (26), and the crossbeam frame (26) is slidably mounted on the second linear module (27) via a slider at its bottom to adjust the front and rear positions of the folding ear mechanism (21).

9. The fully automatic optical film folding device according to claim 8, characterized in that, A limiting groove (260) is provided on the crossbeam frame (26) along its length direction; the folding ear mechanism (21) is slidably disposed in the limiting groove (260) via the second sliding plate (28) at the bottom; a waist-shaped hole (261) is provided on the crossbeam frame (26), and by setting fasteners in the waist-shaped hole (261), the second sliding plate (28) and the folding ear mechanism (21) above it are limited and fixed on the crossbeam frame (26), so as to realize the coarse adjustment and locking of the left and right positions of the folding ear mechanism (21).

10. The fully automatic folding lug device for optical films according to claim 6, characterized in that, The folding mechanism (21) includes: The pressing section (210) includes a top pressing cylinder (2100), the drive end of which is connected to an upper pressing block (2101) for pressing down and fixing the optical film before the folding operation; The inclined push section (211) includes an inclined push cylinder (2110), whose drive end is connected to an inclined push head (2111). The front end of the inclined push head (2111) is arc-shaped and is used to cut into and initially bend the ear of the diaphragm after the diaphragm is pressed by the pressing section (210). The horizontal pusher (212) includes a horizontal cylinder (2120) with a horizontal pusher (2121) connected to its drive end, for horizontally pushing after the oblique pusher (211) has completed its action to completely bend the ear.

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