Backlight film all-in-one machine with static electricity elimination

Abstract

The utility model relates to the technical field of backlight pasting machine, especially to a backlight pasting integrated machine with static electricity elimination, its technical scheme includes base, centrifugal fan, support platform, mounting frame no.

Description

Technical Field

[0001] This utility model relates to the technical field of backlight film application machines, and in particular to an integrated backlight film application machine with static elimination function. Background Technology

[0002] In backlight production, film application is a key process to ensure optical performance and improve product reliability. However, static electricity is the core hidden danger that leads to product defects during the film application process. The core function of a backlight is to transform LED point light sources into uniform surface light sources. Its structure consists of a basic support layer, an optical functional layer, and a protective layer. The structure that requires film application can be divided into protective film application structures and functional film application structures. The light guide plate guides the side light from the LEDs and diffuses it into surface light through surface dots. Optical film groups are attached to the surface. The light guide plate realizes the diffusion film for uniform light, the brightness enhancement film for increasing brightness, and the polarizing film for controlling the light direction.

[0003] During the backlight film application process, static electricity mainly originates from material friction, peeling, contact separation, and environmental factors. Static electricity can cause strong attraction on the film material and workpiece surface, attracting dust from the air. After film application, the dust is trapped between the film layers, forming black spots and bright spots, which directly affect the uniformity of the backlight. If the backlight has pre-installed LED light strips, the instantaneous voltage during electrostatic discharge can reach tens of thousands of volts, which can break down the PN junction of the LED chip, causing the light strips to not light up and the entire backlight assembly to be scrapped. To address this issue, we propose an integrated backlight film application machine with static electricity elimination to solve the existing problems. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a backlight film application machine with static elimination.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a backlight film application machine with static elimination, comprising a base, a centrifugal fan, a support platform, a first mounting frame, a second mounting frame, and a support frame. The upper end of the base is provided with a support platform on which a light guide plate is placed. The support frame is provided above the base. A flow guide hood is provided inside the support frame. An ion fan is provided at the upper end of the base. A flexible tube is provided at the output end of the ion fan. A flow guide hood is provided at one end of the flexible tube. An adsorption box is provided above the support platform. An equally spaced suction nozzle is provided at the lower end of the adsorption box. The adsorption box is hollow inside and a negative pressure pump connected to it is provided at the upper end.

[0006] Preferably, both ends of the flow guide are provided with rotating shafts that are rotatably installed inside the support frame, and one end of the support frame is provided with a motor connected to the rotating shaft.

[0007] Preferably, the upper end of the base is provided with a guide rod, and one end of the support frame is provided with a sliding sleeve that is slidably sleeved on the outer wall of the guide rod.

[0008] Preferably, the upper end of the base is provided with a mounting frame, the mounting frame is provided with a motor, the output end of the motor is provided with a screw, and the outer wall of the screw is threaded with a nut connected to one end of the support frame.

[0009] Preferably, a second mounting frame is provided above the base, a second motor is provided at one end of the second mounting frame, a second screw is provided at the output end of the second motor, and a second nut is threaded onto the outer wall of the second screw.

[0010] Preferably, the lower end of the second nut is provided with a mounting plate, the lower end of the mounting plate is provided with a hydraulic rod 1 whose telescopic end is connected to the adsorption box, and the second mounting frame is provided with symmetrically distributed sliding rods that are slidably inserted into the mounting plate.

[0011] Preferably, hydraulic rods are provided on both sides of the upper end of the support platform. The telescopic end of the hydraulic rods is provided with a side plate. One end of the side plate is provided with clamping rods for holding the light guide plate at equal intervals. One end of the clamping rod is provided with a rubber head.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model uses an ion fan and a flow guide hood. The high-voltage generator of the ion fan generates positive and negative ions to eliminate static electricity generated during backlight film application, ensuring safe production during backlight light guide plate film application. At the same time, the flow guide hood can be adjusted in angle and height. With the threaded engagement of screw one and nut one, the flow guide hood is driven to move longitudinally, improving the flexibility of the flow guide hood. Meanwhile, the adsorption box above the support platform and the negative pressure suction nozzle at the lower end adsorb the membrane structure components and align them with the light guide plate for film application, improving the convenience of film application. Attached Figure Description

[0014] Figure 1 This is a top-view three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a front-view three-dimensional structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the mounting frame of this utility model in a main section.

[0017] Figure 4 This is a three-dimensional sectional view of the mounting frame of this utility model.

[0018] Figure 5 This is a side view of the three-dimensional structure of the support frame of this utility model.

[0019] Reference numerals in the attached diagram: 1. Base; 2. Ionizing fan; 3. Support platform; 4. Guide hood; 5. Mounting frame one; 6. Mounting frame two; 7. Support frame; 8. Hoses; 9. Motor one; 10. Slide rod; 11. Nut one; 12. Guide rod; 13. Sliding sleeve; 14. Light guide plate; 15. Motor two; 16. Adsorption box; 17. Nut two; 18. Negative pressure pump; 19. Hydraulic rod one; 20. Screw two; 21. Hydraulic rod two; 22. Mounting plate; 23. Side plate; 24. Rubber head; 25. Clamping rod; 26. Rotating shaft; 27. Motor three. Detailed Implementation

[0020] 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.

[0021] like Figures 1-5 As shown, the present invention proposes a backlight film application machine with static elimination, including a base 1, a centrifugal fan, a support platform 3, a first mounting frame 5, a second mounting frame 6, and a support frame 7. The support platform 3, which is placed on the upper end of the base 1, is provided with a light guide plate 14. The support frame 7 is provided above the base 1. A flow guide hood 4 is provided inside the support frame 7. An ion fan 2 is provided above the base 1. A flexible hose 8 is provided at the output end of the ion fan 2. A flow guide hood 4 is provided at one end of the flexible hose 8. An adsorption box 16 is provided above the support platform 3. An equally spaced suction nozzle is provided at the lower end of the adsorption box 16. The adsorption box 16 is hollow inside and a negative pressure pump 18 connected to it is provided at the upper end.

[0022] Both ends of the flow guide 4 are provided with rotating shafts 26 that are rotatably installed inside the support frame 7, and one end of the support frame 7 is provided with a motor 27 connected to the rotating shafts 26;

[0023] A guide rod 12 is provided at the upper end of the base 1, and a sliding sleeve 13 is provided at one end of the support frame 7, which is slidably sleeved on the outer wall of the guide rod 12.

[0024] The upper end of the base 1 is provided with a mounting frame 5, the inside of the mounting frame 5 is a motor 9, the output end of the motor 9 is provided with a screw, and the outer wall of the screw is threaded with a nut 11 connected to one end of the support frame 7.

[0025] A mounting frame 2 6 is provided above the base 1. A motor 2 15 is provided at one end of the mounting frame 2 6. A screw 20 is provided at the output end of the motor 2 15. A nut 2 17 is threaded onto the outer wall of the screw 20.

[0026] The lower end of nut 2 17 is provided with mounting plate 22, and the lower end of mounting plate 22 is provided with hydraulic rod 19 connected to adsorption box 16 via telescopic end. The interior of mounting frame 2 6 is provided with symmetrically distributed sliding rods 10 that are slidably inserted into the interior of mounting plate 22.

[0027] Hydraulic rods 21 are provided on both sides of the upper end of the support platform 3. Side plates 23 are provided at the telescopic ends of the hydraulic rods 21. Clamping rods 25, which are evenly distributed at one end of the side plates 23, are used to clamp the light guide plate 14. Rubber heads 24 are provided at one end of the clamping rods 25.

[0028] Based on the implementation steps of Example 1: Place the light guide plate 14 to be coated on the support platform 3 in the center, activate hydraulic rod 21 to push the side plate 23 inward, so that the rubber head 24 of the clamping rod 25 fits against the edge of the light guide plate 14, and the rubber head 24 avoids damaging the surface of the light guide plate 14. Manually pull the front end of the film material to directly below the adsorption box 16 to ensure that the edge of the film material is aligned with the adsorption box 16. Activate ion fan 2, the high-voltage generator generates positive and negative ions, and the ions are transported to the flow guide hood 4 through the hose 8. Activate motor 9. The drive screw rotates, and the nut 11 drives the support frame 7 to slide along the guide rod 12, so that the flow guide 4 moves to the top of the light guide plate 14. The motor 27 is started, driving the shaft 26 of the flow guide 4 to rotate, and the angle of the flow guide 4 is adjusted to 45° to ensure that the ion wind evenly covers the surface of the light guide plate 14 without dead corners. The ion wind continuously blows the surface of the light guide plate 14 to neutralize the static electricity generated by the light guide plate 14 in the early handling, and at the same time, the ion wind removes the fine dust on the surface of the light guide plate 14 to avoid the formation of black spots after the film is applied.

[0029] Start the negative pressure pump 18 to form a negative pressure in the adsorption box 16. The lower nozzle evenly adsorbs the diffusion film. Start the motor 15 to drive the screw 20 to rotate. The nut 17 drives the mounting plate 22 and the adsorption box 16 to move, and transport the adsorbed diffusion film to the top of the light guide plate 14. Start the hydraulic rod 19 to drive the adsorption box 16 to slowly descend until the lower surface of the diffusion film is attached to the surface of the light guide plate 14.

[0030] The negative pressure pump 18 is turned off, the adsorption box 16 releases the diffusion film, and the diffusion film naturally adheres to the surface of the light guide plate 14. At the same time, the hydraulic rod 19 is started and slowly descends. The diffusion film is initially pressed by the weight of the adsorption box 16, and the air between the film and the light guide plate 14 is discharged to avoid air bubbles. The position of the flow guide hood 4 remains unchanged, and the ion wind continues to blow on the film application area to neutralize the static electricity generated by the contact and separation of the film and the light guide plate 14 during the film application process. The hydraulic rod 21 is started, which drives the clamping rod 25 to move outward and release the light guide plate 14. The light guide plate 14 with the film applied is taken out from the support table 3 by manual or robotic arm and sent to the next process for brightening film application.

[0031] Motor 1 (9) drives support frame 7 to reset to its initial position, and motor 2 (15) drives adsorption box 16 to reset next to the film unwinding mechanism, ready for the next adsorption. Through ion fan 2 and adjustable guide hood 4, static electricity is eliminated before and after film application on light guide plate 14, with residual static voltage controlled below 50V. Compared to traditional equipment without static elimination, this avoids dust adsorption. Support platform 3 clamping rod 25 flexibly clamps light guide plate 14 with rubber head 24, preventing positioning deviation. From light guide plate 14 clamping and static elimination to film adsorption and bonding, the process is highly automated and efficient, shortening the single-piece film application cycle and reducing film wrinkles and scratches caused by manual operation. Traditional manual film application requires manual film removal, alignment, and pressing, which is not only inefficient but also prone to wrinkles and scratches due to uneven operating force. This equipment automatically removes the film through adsorption box 16 and precisely presses it with hydraulic rods, reducing manual contact with the film throughout the process, improving efficiency and reducing film scrap rate.

[0032] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A backlight film applicator with static elimination, comprising a base (1), a centrifugal fan, a support platform (3), a first mounting frame (5), a second mounting frame (6), and a support frame (7), characterized in that: The base (1) is provided with a support platform (3) on the upper end of the base (1) for placing a light guide plate (14). A support frame (7) is provided above the base (1). A flow guide hood (4) is provided inside the support frame (7). An ion fan (2) is provided at the upper end of the base (1). A hose (8) is provided at the output end of the ion fan (2). A flow guide hood (4) is provided at one end of the hose (8). An adsorption box (16) is provided above the support platform (3). An equally spaced suction nozzle is provided at the lower end of the adsorption box (16). The adsorption box (16) is hollow inside and a negative pressure pump (18) connected to it is provided at the upper end.

2. The backlight film application machine with static elimination according to claim 1, characterized in that: Both ends of the flow guide (4) are provided with rotating shafts (26) that are rotatably installed inside the support frame (7), and one end of the support frame (7) is provided with a motor three (27) connected to the rotating shaft (26).

3. The backlight film application machine with static elimination according to claim 1, characterized in that: The base (1) is provided with a guide rod (12) at the upper end, and the support frame (7) is provided with a sliding sleeve (13) that is slidably sleeved on the outer wall of the guide rod (12) at one end.

4. The backlight film application machine with static elimination according to claim 1, characterized in that: The base (1) is provided with an installation frame (5) at the upper end. The installation frame (5) is provided with a motor (9) inside. The output end of the motor (9) is provided with a screw. The outer wall of the screw is threaded with a nut (11) connected to one end of the support frame (7).

5. The backlight film application machine with static elimination according to claim 1, characterized in that: A mounting frame 2 (6) is provided above the base (1). A motor 2 (15) is provided at one end of the mounting frame 2 (6). A screw 2 (20) is provided at the output end of the motor 2 (15). A nut 2 (17) is threaded onto the outer wall of the screw 2 (20).

6. The backlight film application machine with static elimination according to claim 5, characterized in that: The lower end of the nut two (17) is provided with a mounting plate (22), and the lower end of the mounting plate (22) is provided with a hydraulic rod one (19) whose telescopic end is connected to the adsorption box (16). The mounting frame two (6) is provided with symmetrically distributed sliding rods (10) that are slidably inserted into the mounting plate (22).

7. The backlight film application machine with static elimination according to claim 1, characterized in that: Hydraulic rods (21) are provided on both sides of the upper end of the support platform (3). A side plate (23) is provided at the telescopic end of the hydraulic rod (21). A clamping rod (25) for clamping the light guide plate (14) is provided at one end of the side plate (23). A rubber head (24) is provided at one end of the clamping rod (25).

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