Three-station shaftless center coiling equipment for foldable OCA optical adhesive film

Abstract

The utility model relates to the technical field of coiling equipment, and discloses three-station shaftless center coiling equipment for a foldable OCA (Optical Clear Adhesive) film, which comprises a base, the top of the base is fixedly connected with an edge correcting driver, the output end of the edge correcting driver is fixedly connected with a driving screw rod, the outer wall of the driving screw rod is rotatably connected to the top of the base, and the edge correcting driver is fixedly connected with the driving screw rod. A linear rail is fixedly connected to the top of the base, a supporting frame is slidably connected to the outer wall of the linear rail, the outer wall of the driving lead screw is in threaded connection with the interior of the supporting frame, and an overturning driving motor is arranged on the outer wall of the supporting frame. In the utility model, the edge correction drive is used for correcting the edge of a material and linearly displacing a part, the roll core is fixed and rotated through the shaft cylinder jacking shaft and corresponding drive, the part is overturned by the overturning drive motor and the overturning fluted disc, meanwhile, the spline shaft is used for transmission, and the supporting frame is used for enhancing the structural strength, so that the problems of pause and adhesion in the traditional reeling are solved; and the coiling efficiency and the quality stability are improved.

Description

Technical Field

[0001] This utility model relates to the field of winding equipment technology, and in particular to a three-station shaftless center winding device for foldable OCA optical films. Background Technology

[0002] In the current era of continuous innovation in display technology, flexible and foldable devices have rapidly emerged in the consumer electronics field due to their unique advantages, such as convenient portability and novel interactive experiences. As a key component of the display screen of flexible and foldable devices, the quality and performance of flexible foldable OCA optical film play a decisive role in the display effect, flexibility, and durability of the screen. In the production process of flexible foldable OCA optical film, the winding process is crucial, as it not only affects the winding quality of the film but also has a significant impact on production efficiency. A three-station shaftless center winding machine for foldable OCA optical film has been developed to meet the growing demand for high-quality and high-efficiency production.

[0003] Currently, existing technologies for winding flexible foldable OCA optical films often employ relatively traditional mechanical structures. These typically utilize a shaft-driven winding method, relying on a mechanical shaft to fix the core. A motor drives the shaft to rotate, thus winding the film. During unwinding, simple gravity or spring-type tension adjustment devices are often used to maintain film tension. Station changes are mostly done manually, requiring the equipment to be stopped before the core is replaced and adjusted. This traditional mechanical structure and technical principle can, to a certain extent, achieve the film winding operation.

[0004] However, this existing technology has obvious drawbacks. Due to the soft, easily deformable, and extremely sensitive nature of flexible foldable OCA optical films, the rotation of the mechanical shaft is difficult to achieve absolute smoothness during operation using traditional shaft-driven winding methods, which easily causes slight jamming. During station switching, the pauses in manual operation and the sudden changes in speed and tension when restarting the equipment cause the film to frequently encounter stuttering during the winding process. At the same time, the adhesiveness of the film itself and the static electricity generated during winding, coupled with the inability of traditional tension adjustment devices to accurately control the tension, make it very easy for the film layers to stick together. This not only seriously affects the appearance quality of the film but also greatly reduces the product yield and increases production costs. To address these issues, a three-station shaftless center winding device for foldable OCA optical films is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a three-station shaftless center-winding device for foldable OCA optical films, which aims to improve the problems of jerking and adhesion in the traditional winding of flexible foldable OCA optical films in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A three-station shaftless center-winding device for foldable OCA optical film includes a base, an edge-correcting drive fixedly connected to the top of the base, a drive screw fixedly connected to the output end of the edge-correcting drive, the outer wall of the drive screw rotatably connected to the top of the base, a linear track fixedly connected to the top of the base, a support frame slidably connected to the outer wall of the linear track, and the outer wall of the drive screw threadedly connected inside the support frame.

[0008] As a further description of the above technical solution:

[0009] A tilting drive motor is provided on the outer wall of the support frame, and a tilting gear is fixedly connected to the output end of the tilting drive motor. The tilting gear is provided on the outer wall of the support frame.

[0010] As a further description of the above technical solution:

[0011] A C-axis cylinder top shaft is provided on the outer wall of one side of the support frame, and a C-axis drive is provided on the outer wall of the other side of the support frame.

[0012] As a further description of the above technical solution:

[0013] A B-axis cylinder top shaft is provided on the outer wall of one side of the support frame, and a B-axis drive is provided on the outer wall of the other side of the support frame.

[0014] As a further description of the above technical solution:

[0015] One side of the support frame outer wall is provided with an A-axis cylinder top shaft, and the other side of the support frame outer wall is provided with an A-axis drive aligned with the C-axis drive, a B-axis cylinder top shaft aligned with the B-axis drive, and an A-axis cylinder top shaft aligned with the A-axis drive.

[0016] As a further description of the above technical solution:

[0017] The support frame contains a spline shaft A, a spline shaft B, and a spline shaft C.

[0018] This utility model has the following beneficial effects:

[0019] In this invention, the device includes a base that provides stable support, an edge correction drive that works with a drive screw and a linear track to correct the material edge and linearly displace the component, a shaft cylinder that controls the shaft's movement via a corresponding drive to fix and rotate the core, a flip drive motor and a flip gear to flip the component, a spline shaft for transmission, and a support frame to enhance structural strength. This invention solves the problems of stuttering and adhesion in traditional winding of flexible foldable OCA optical films, and improves winding efficiency and quality stability. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a three-station shaftless center-winding device for foldable OCA optical film proposed in this utility model.

[0021] Figure 2 This is a schematic diagram of the structure of the A-spline shaft of a three-station shaftless center winding device for foldable OCA optical film proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the top structure of the base of a three-station shaftless center-winding device for foldable OCA optical film, as proposed in this utility model.

[0023] Legend:

[0024] 1. Base; 2. Edge straightening drive; 3. Drive screw; 4. Linear rail; 5. C-axis cylinder top shaft; 6. B-axis cylinder top shaft; 7. A-axis cylinder top shaft; 8. C-axis drive; 9. B-axis drive; 10. A-axis drive; 11. Tilting drive motor; 12. Tilting gear plate; 13. A-spline shaft; 14. B-spline shaft; 15. C-spline shaft; 16. Support frame. Detailed Implementation

[0025] 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.

[0026] Reference Figure 1 - Figure 3This utility model provides an embodiment of a three-station shaftless center winding device for foldable OCA optical film, including a base 1. The base 1 serves as the basic support structure for the entire device and is made of high-strength cast iron. This cast iron material has good rigidity and stability and can withstand various forces generated during the operation of the device, ensuring the overall stable operation of the device. An edge-correcting drive 2 is fixedly connected to the top of the base 1. The edge-correcting drive 2 uses a high-performance servo motor, which has the characteristics of fast response speed and high control precision. Its function is to provide precise rotational power for the drive screw 3 to achieve precise adjustment of the position of the support frame 16. The output end of the edge-correcting drive 2 is fixedly connected to the drive screw 3. The outer wall of the drive screw 3 cooperates with the threaded structure inside the support frame 16. When the drive screw 3 rotates under the drive of the edge-correcting drive 2, it can drive the support frame 16 to move linearly on the linear track 4, thereby achieving precise correction of the edge position of the foldable OCA optical film, avoiding the film from shifting during the winding process, and improving the winding quality. The outer wall of the drive screw 3 is rotatably connected to the top of the base 1. The top of the base 1 is fixedly connected to the linear track 4. The outer wall of the linear track 4 is slidably connected to the support frame 16. The outer wall of the drive screw 3 is threadedly connected to the inside of the support frame 16. The outer wall of the support frame 16 is provided with a flip drive motor 11. The output end of the flip drive motor 11 is fixedly connected to a flip gear 12. The flip gear 12 is made of high-strength alloy steel and is precision forged and machined, resulting in high tooth surface hardness and good wear resistance. A rotating gear 12 is mounted on the outer wall of the support frame 16. When the rotating drive motor 11 starts, it drives the rotating gear 12 to rotate, thereby enabling switching between different workstations and improving the winding efficiency of the equipment. The rotating gear 12 is mounted on the outer wall of the support frame 16. A C-axis cylinder top shaft 5 is mounted on one side of the outer wall of the support frame 16. The C-axis cylinder top shaft 5 consists of a cylinder body, a piston rod, and a top shaft head. The cylinder body is made of high-quality aluminum alloy, which has good corrosion resistance and lightweight characteristics. The piston rod is made of high-strength stainless steel with a chrome-plated surface, which has good wear resistance and corrosion resistance.The top spindle head is made of polyurethane, which has good elasticity and wear resistance, preventing damage to the core during core fixing. A C-axis drive 8 is located on the outer wall of the support frame 16 on one side, a B-axis cylinder top spindle 6 is located on the outer wall of the support frame 16 on the other side, a B-axis drive 9 is located on the outer wall of the support frame 16 on one side, an A-axis cylinder top spindle 7 is located on the outer wall of the support frame 16 on the other side, and an A-axis drive 10 is located on the outer wall of the support frame 16 on the other side. These work in conjunction with the A-spline shaft 13, B-spline shaft 14, and C-spline shaft 15 to complete the winding task of the foldable OCA optical film. The C-axis cylinder top spindle 5 is aligned with the C-axis drive 8. The B-axis cylinder top shaft 6 is aligned with the B-axis drive 9, and the A-axis cylinder top shaft 7 is aligned with the A-axis drive 10. The support frame 16 contains an A-spline shaft 13, a B-spline shaft 14, and a C-spline shaft 15. These spline shafts are made of high-strength alloy steel and undergo precision machining and heat treatment processes, resulting in excellent strength, toughness, and wear resistance. The spline portion of the spline shaft is specially designed and machined to achieve precise matching with the core and drive components, ensuring stable torque transmission during winding and achieving efficient and precise winding operations.

[0027] Specifically, the equipment uses base 1 as a stable foundation to support all components and ensure overall stability. In actual operation, base 1 is made of high-strength alloy material, precision machined and surface-treated, possessing good rigidity and corrosion resistance. It can withstand the vibration and impact generated during high-speed operation, providing a solid guarantee for the stable operation of the entire equipment. During operation, the foldable OCA optical film to be wound is released from the unwinding device. According to the specifications of the optical film, the edge correction drive 2 is activated. The edge correction drive 2 uses an advanced servo motor, which features high precision and high response speed. It drives the drive screw 3 to rotate, thereby driving the support frame 16 to move on the linear track 4. The linear track 4 uses a high-precision guide rail with a hardened surface treatment to ensure that the support frame 16 can move smoothly and accurately, thereby correcting the edge of the film in real time and ensuring that the film is always in the correct position. In the winding process, the three stations work together. When a station needs to be prepared for winding, the corresponding A-axis cylinder top shaft 7, B-axis cylinder top shaft 6, or C-axis cylinder top shaft 5 extends. These cylinder top shafts use highly sealed cylinders, which can quickly and accurately fix the core. Then, the A-axis drive 10, B-axis drive 9, and C-axis drive 8 are started, driving the A-spline shaft 13, B-spline shaft 14, and C-spline shaft 15 to rotate, thereby realizing the winding action. The spline shafts have good torque transmission performance, which can ensure the stability of the winding process. When a station completes winding, the flip drive motor 11 starts, driving the flip gear 12 to rotate. The flip drive motor 11 is a high-torque, low-noise motor. The flip gear 12 has a precise tooth profile design and heat treatment, which flips the station that has completed winding to the unloading position, and at the same time, turns the prepared new station to the winding position. The whole process is smooth and efficient, effectively solving the problems of stuttering and sticking in traditional winding methods, and improving production efficiency and product quality.

[0028] Working Principle: The equipment uses base 1 as a stable foundation to support all components and ensure overall stability. During operation, the foldable OCA optical film to be wound is released from the unwinding device. The edge-correcting drive 2 is activated according to the specifications of the optical film, which drives the drive screw 3 to rotate, thereby moving the support frame 16 on the linear track 4. This provides real-time correction of the film edges, ensuring the film is always in the correct position. In the winding stage, the three stations work together. When preparation for winding at a certain station is needed, the corresponding A-axis cylinder top shaft 7, B-axis cylinder top shaft 6, or C-axis cylinder top shaft 7 is activated. The cylinder top shaft 5 extends to fix the core. Then, the A-axis drive 10, B-axis drive 9, and C-axis drive 8 are started, driving the A-spline shaft 13, B-spline shaft 14, and C-spline shaft 15 to rotate, thereby realizing the winding action. When a station completes winding, the flip drive motor 11 starts, driving the flip gear 12 to rotate, flipping the station that has completed winding to the unloading position, and at the same time, turning the prepared new station to the winding position. The whole process is smooth and efficient, effectively solving the problems of stuttering and sticking in the traditional winding method, and improving production efficiency and product quality.

[0029] 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 three-station shaftless center-winding device for foldable OCA optical film, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to an edge-correcting drive (2), and the output end of the edge-correcting drive (2) is fixedly connected to a drive screw (3). The outer wall of the drive screw (3) is rotatably connected to the top of the base (1). The top of the base (1) is fixedly connected to a linear track (4), and the outer wall of the linear track (4) is slidably connected to a support frame (16). The outer wall of the drive screw (3) is threadedly connected to the inside of the support frame (16).

2. The three-station shaftless center-winding device for foldable OCA optical film according to claim 1, characterized in that: The outer wall of the support frame (16) is provided with a flip drive motor (11), and the output end of the flip drive motor (11) is fixedly connected to a flip gear disk (12), which is located on the outer wall of the support frame (16).

3. The three-station shaftless center-winding device for foldable OCA optical film according to claim 2, characterized in that: A C-axis cylinder top shaft (5) is provided on the outer wall of one side of the support frame (16), and a C-axis drive (8) is provided on the outer wall of the other side of the support frame (16).

4. A three-station shaftless center-winding device for foldable OCA optical film according to claim 3, characterized in that: A B-axis cylinder top shaft (6) is provided on the outer wall of one side of the support frame (16), and a B-axis drive (9) is provided on the outer wall of the other side of the support frame (16).

5. A three-station shaftless center-winding device for foldable OCA optical film according to claim 4, characterized in that: The outer wall of the support frame (16) on one side is provided with an A-axis cylinder top shaft (7), and the outer wall of the support frame (16) on the other side is provided with an A-axis drive (10).

6. A three-station shaftless center-winding device for foldable OCA optical film according to claim 5, characterized in that: The top shaft (5) of the C-axis cylinder is aligned with the C-axis drive (8), the top shaft (6) of the B-axis cylinder is aligned with the B-axis drive (9), and the top shaft (7) of the A-axis cylinder is aligned with the A-axis drive (10).

7. A three-station shaftless center-winding device for foldable OCA optical film according to claim 6, characterized in that: The support frame (16) is provided with an A spline shaft (13), a B spline shaft (14), and a C spline shaft (15).

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