Film sticking machine with automatic film sticking alignment device
By introducing infrared sensors and a moving frame structure into the laminating machine, automatic alignment of board-like items is achieved, solving the problem of inaccurate lamination in existing laminating machines and improving lamination accuracy and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU NUOBEIZE ELECTROMECHANICAL CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-28
AI Technical Summary
Existing film applicators lack automatic alignment when applying film to board-like items, resulting in inaccurate centering of the film and often misaligned application, affecting both aesthetics and protective effectiveness.
The film applicator employs an automatic film alignment device. It uses an infrared sensor to detect the position of board-like items, and achieves center alignment of the board-like items through a moving frame and a limiting frame. The stability of the device is improved by using casters and a pressure plate.
It enables precise centering of protective film on board-like items, improves the accuracy and stability of film application, avoids the problem of misaligned protective film application, and enhances the practicality and stability of the device.
Smart Images

Figure CN224171258U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of film applicator technology, and in particular to a film applicator with an automatic film applicator alignment device. Background Technology
[0002] A film applicator is an automated device that precisely applies protective films, functional films, or tapes to the surface of products. It automatically transports the object to be applicated to the designated position through a transmission mechanism. By using mechanical, electrical, and intelligent control technologies, it replaces manual labor to achieve efficient, stable, and high-precision film application. Its core value lies in improving production efficiency, reducing labor costs, and ensuring bonding quality. It is widely used in consumer electronics, automotive, medical, and semiconductor industries.
[0003] In existing technologies, existing film laminating machines lack automatic alignment functions when applying film to sheet-like items. As a result, the equipment cannot accurately center the protective film on the surface of the sheet-like items during the application process. Because the film laminating equipment cannot accurately center the film on the sheet-like items, it is very easy for the protective film to be applied crookedly. This not only seriously affects the appearance of the sheet-like items, greatly reducing their value in subsequent display, sales, or use, but may also weaken the protective film's intended protective function and reduce the lifespan of the sheet-like items due to problems such as loose adhesion, air bubbles, or wrinkles. Therefore, it is necessary to improve the film laminating machine by having an automatic film alignment device to solve the above problems. Utility Model Content
[0004] To overcome the problem that existing film applicators lack automatic alignment when applying film to board-like items, resulting in the film applicator failing to accurately center the film on the board-like items and failing to align the items properly, which easily leads to the problem of the protective film being applied crookedly to the surface of the board-like items.
[0005] The technical solution of this utility model is as follows: a film applicator with an automatic film alignment device, including a frame, a fixed frame, and a moving component. A conveying device for conveying sheet-like items is installed inside the frame. The film applicator body for applying film to the sheet-like items conveyed by the conveying device is fixedly connected inside the frame. A moving component is installed at the bottom of the frame to facilitate movement of the frame position. A fixed frame is fixedly connected inside the frame. An optical axis is rotatably connected inside the fixed frame. A rotating bracket is fixedly connected to the optical axis. A movable bracket is rotatably connected to the rotating bracket. A movable frame is slidably connected inside the fixed frame. The end of the movable bracket away from the rotating bracket is rotatably connected inside the movable frame. A limiting frame for limiting the position of the sheet-like items conveyed by the conveying device is fixedly connected to the top of the movable frame. The limiting frame is located inside the conveying device. A rubber rotating roller is rotatably connected inside the limiting frame. An infrared sensor is fixedly connected to the end of the limiting frame closest to the sheet-like items.
[0006] Preferably, there are two sets of movable frames, which are symmetrically distributed on the fixed frame.
[0007] Preferably, the fixed frame has a matching groove at the corresponding position of the movable frame, and the movable frame slides within the groove of the fixed frame.
[0008] Preferably, a hydraulic telescopic rod is fixedly connected to the left end of the fixed frame, and a connecting block is fixedly connected to the telescopic end of the hydraulic telescopic rod. The connecting block is slidably connected inside the fixed frame, and the movable frame is fixedly connected to the right end of the connecting block.
[0009] Preferably, the fixing frame has a matching groove at the corresponding position of the connecting block, and the connecting block slides in the groove of the fixing frame.
[0010] Preferably, the movable component includes casters fixedly connected to the bottom of the frame, a fixed plate fixedly connected to the outside of the frame, a threaded rod threadedly connected to the inside of the fixed plate, a pressure plate fixedly connected to the threaded rod, an anti-slip rubber pad for improving friction fixedly connected to the bottom of the pressure plate, and a rotating handle fixedly connected to the top of the threaded rod.
[0011] Preferably, four sets of fixing plates, threaded rods, pressure plates, anti-slip rubber pads, and rotating handles are provided, and the four sets of fixing plates, threaded rods, pressure plates, anti-slip rubber pads, and rotating handles are symmetrically distributed on the outside of the frame.
[0012] The beneficial effects of this utility model are:
[0013] 1. Compared to existing laminating machines that lack automatic alignment when applying film to sheet-like items, this device uses an infrared sensor fixed on the leftmost limit frame to detect the sheet-like item. When the sensor detects the item, the two moving frames move synchronously closer, keeping the sheet-like item centered within the laminating machine body for proper alignment. When the infrared sensor on the leftmost limit frame does not detect the item, the moving frames on both sides reset, facilitating centered film application. This achieves automatic alignment, improves the laminating accuracy, prevents misalignment of the protective film on sheet-like items, enhances the device's practicality, and avoids the problem of inaccurate centering and misalignment of the protective film.
[0014] 2. The moving component moves the frame position via casters and moves downward via a pressure plate, causing it to contact the anti-slip rubber pad with the ground. The anti-slip rubber pad increases the friction between the pressure plate and the ground, thus fixing the frame position and improving its stability, thereby enhancing the film application stability of the film applicator. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the main body structure of the film applicator of this utility model;
[0017] Figure 3 This is a schematic diagram of the limiting frame structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the infrared sensor structure of this utility model;
[0019] Figure 5 This is a schematic diagram of the structure of the mobile component of this utility model.
[0020] Explanation of reference numerals in the attached drawings: 1. Frame; 21. Fixed frame; 22. Optical axis; 23. Rotating bracket; 24. Movable bracket; 25. Hydraulic telescopic rod; 26. Connecting block; 27. Moving frame; 28. Limiting frame; 29. Rubber rotating roller; 210. Infrared sensor; 31. Caster wheel; 32. Fixed plate; 33. Threaded rod; 34. Pressure plate; 35. Anti-slip rubber pad; 36. Rotating handle; 4. Conveying device; 5. Film applicator body. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Please see Figure 1 - Figure 5This utility model provides an embodiment of a film applicator with an automatic film alignment device, comprising a frame 1, a fixed frame 21, and a moving component. A conveying device 4 for conveying sheet-like items is disposed inside the frame 1. A film applicator body 5 for applicating the sheet-like items conveyed by the conveying device 4 is fixedly connected inside the frame 1. A moving component is disposed at the bottom of the frame 1 to facilitate movement of the frame 1. The fixed frame 21 is fixedly connected inside the frame 1. An optical shaft 22 is rotatably connected inside the fixed frame 21. A rotating bracket 23 is fixedly connected to the optical shaft 22. A movable bracket 24 is rotatably connected to the rotating bracket 23. A movable frame 27 is slidably connected inside the fixed frame 21. The end of the movable bracket 24 away from the rotating bracket 23 is rotatably connected inside the movable frame 27. A limiting frame 28 for limiting the sheet-like items conveyed by the conveying device 4 is fixedly connected to the top of the movable frame 27. The limiting frame 28 is disposed inside the conveying device 4. A rubber rotating roller 29 is rotatably connected inside the limiting frame 28. The limiting frame 28 is close to the sheet-like items. An infrared sensor 210 is fixedly connected to one end of the board-like item. The infrared sensor 210 is model E3Z-D61. The working principle of the infrared sensor 210, hydraulic telescopic rod 25 and controller is a common technical means in this field, so it will not be described in detail. When the infrared sensor 210 fixed on the leftmost limit frame 28 senses the board-like item, the two sets of moving frames 27 move closer synchronously to keep the board-like item in the center position of the laminating machine body 5, so that it can center and align the board-like item for lamination. When the infrared sensor 210 fixed on the leftmost limit frame 28 does not sense the board-like item, the moving frames 27 on both sides are reset to facilitate centering and lamination of the board-like item, thereby completing the automatic alignment effect of the board-like item. The moving component moves the position of the frame 1 through the universal wheel 31 and moves downward through the pressure plate 34, so that the anti-slip rubber pad 35 contacts the ground to fix the position of the frame 1, thereby improving the fixation stability and the lamination stability of the laminating machine body 5.
[0023] Please see Figure 2 - Figure 4In this embodiment, two sets of movable frames 27 are provided, symmetrically distributed on the fixed frame 21, which facilitates the centering and alignment of board-like items, thereby improving the film application accuracy of the film applicator body 5. The fixed frame 21 has corresponding slots at the corresponding positions of the movable frames 27, and the movable frames 27 slide within the slots of the fixed frame 21 to limit the limiting frame 28, allowing it to move only in a straight line, thus improving the practicality of the device. A hydraulic telescopic rod 25 is fixedly connected to the left end of the fixed frame 21, and a connecting block 26 is fixedly connected to the telescopic end of the hydraulic telescopic rod 25. The connecting block 26 is slidably connected inside the fixed frame 21, and the movable frame 27 is fixedly connected to the right end of the connecting block 26. The infrared sensor 210 fixed on the leftmost limiting frame 28 senses the board-like items. When applying the film, the two sets of moving frames 27 are brought closer together synchronously, keeping the board-like items in the center position of the film applicator body 5. When the infrared sensor 210 fixed on the leftmost limit frame 28 does not detect the board-like items, the hydraulic telescopic rod 25 is extended by the external controller to reset the moving frames 27 on both sides, making it convenient to center the film on the board-like items, thereby achieving automatic alignment of the board-like items, improving the film application accuracy of the film applicator body 5, preventing the protective film on the surface of the board-like items from being applied crookedly, and improving the practicality of the device. The fixed frame 21 has a matching groove at the corresponding position of the connecting block 26. The connecting block 26 slides in the groove of the fixed frame 21 to limit the connecting block 26, thereby improving the alignment effect of the board-like items and improving the stability of the device.
[0024] Please see Figure 1 , Figure 5 In this embodiment, the moving component includes casters 31, which are fixedly connected to the bottom of the frame 1. A fixing plate 32 is fixedly connected to the outer side of the frame 1. A threaded rod 33 is threadedly connected to the inside of the fixing plate 32. A pressure plate 34 is fixedly connected to the threaded rod 33. An anti-slip rubber pad 35 to improve friction is fixedly connected to the bottom of the pressure plate 34. A rotating handle 36 is fixedly connected to the top of the threaded rod 33. The moving component moves the frame 1 by means of the casters 31 and moves downward by means of the pressure plate 34, so that the anti-slip rubber pad 35 is pressed against the ground. The anti-slip rubber pad 35 increases the friction between the pressure plate 34 and the ground, thus fixing the position of the frame 1 and improving its stability. This also improves the film application stability of the film applicator body 5. There are four sets of fixing plates 32, threaded rods 33, pressure plates 34, anti-slip rubber pads 35 and rotating handles 36. The four sets of fixing plates 32, threaded rods 33, pressure plates 34, anti-slip rubber pads 35 and rotating handles 36 are symmetrically distributed on the outside of the frame 1, so that the four ends of the frame 1 are in contact with the ground, thus improving the stability of the frame 1's fixed position.
[0025] During operation, the frame 1 is moved using the casters 31 to facilitate position adjustment. After adjustment, the handle 36 on the outside of the frame 1 is rotated, connecting it to the inside of the fixing plate 32 via the threaded rod 33. This causes the pressure plate 34 to press downwards, bringing the anti-slip rubber pad 35 into contact with the ground. The anti-slip rubber pad 35 increases the friction between the pressure plate 34 and the ground, fixing the frame 1 in place and improving its stability. This enhances the film-applying stability of the laminating machine body 5. The board-like items to be laminated are then placed on the conveyor roller at the left end of the conveyor device 4. The conveyor device 4 is then activated, moving the board-like items towards the laminating machine body 5. When the infrared sensor 210, fixed on the leftmost limit frame 28, detects the board-like items, it triggers the outer... The controller retracts the hydraulic telescopic rod 25, causing it to move the movable frame 27 closer to the board-like item via the connecting block 26. At this time, two sets of movable supports 24 drive the two sets of movable frames 27 to move closer synchronously, so that the board-like item is limited by the limit frame 28 at the top of the movable frame 27, keeping the board-like item in the center position of the laminating machine body 5. The rubber rotating roller 29 contacts the board-like item, ensuring that the conveying device 4 can properly convey the board-like item, so that the laminating machine body 5 can apply film to the board-like item. When the infrared sensor 210 fixed on the leftmost limit frame 28 does not detect the board-like item, the external controller extends the hydraulic telescopic rod 25 and resets the movable frames 27 on both sides, making it convenient to center the board-like item for film application, thereby completing the automatic alignment effect of the board-like item.
[0026] Through the above steps, when the infrared sensor 210 fixed on the leftmost limiting frame 28 senses a board-like object, the two sets of moving frames 27 are brought closer together synchronously, keeping the board-like object in the center position of the laminating machine body 5, so that it can center and align the board-like object for lamination. When the infrared sensor 210 fixed on the leftmost limiting frame 28 does not sense a board-like object, the moving frames 27 on both sides are reset, so that it is convenient to center and align the board-like object for lamination. This completes the automatic alignment effect of the board-like object, improves the lamination accuracy of the laminating machine body 5, prevents the protective film on the surface of the board-like object from being applied crookedly, and improves the practicality of the device. This solves the problem that the lamination equipment cannot accurately center and align the board-like object for lamination, and the problem of the protective film on the surface of the board-like object being applied crookedly is very likely to occur.
Claims
1. A film applicator with an automatic film alignment device, comprising a frame (1), characterized in that: It also includes a fixed frame (21) and a moving component. The frame (1) is equipped with a conveying device (4) for conveying plate-like items. The frame (1) is fixedly connected to the body of a film applicator (5) for applying film to the plate-like items conveyed by the conveying device (4). The bottom of the frame (1) is equipped with a moving component to facilitate the movement of the frame (1). The frame (1) is fixedly connected to the inside of the frame (1). The fixed frame (21) is rotatably connected to the inside of the fixed frame (21). The optical shaft (22) is fixedly connected to the optical shaft (22). The rotating bracket (23) is fixedly connected to the optical shaft (22). The rotating bracket (23) rotates on the optical shaft (23). A movable bracket (24) is connected to the fixed bracket (21), and a movable frame (27) is slidably connected inside the fixed frame (21). The end of the movable bracket (24) away from the rotating bracket (23) is rotatably connected inside the movable frame (27). A limiting frame (28) for limiting the plate-like items conveyed by the conveying device (4) is fixedly connected to the top of the movable frame (27). The limiting frame (28) is set inside the conveying device (4). A rubber rotating roller (29) is rotatably connected inside the limiting frame (28). An infrared sensor (210) is fixedly connected to the end of the limiting frame (28) near the plate-like items.
2. The film applicator with an automatic film alignment device according to claim 1, characterized in that: There are two sets of movable frames (27), and the two sets of movable frames (27) are symmetrically distributed on the fixed frame (21).
3. The film applicator with an automatic film alignment device according to claim 1, characterized in that: The fixed frame (21) has a matching groove at the corresponding position of the movable frame (27), and the movable frame (27) slides in the groove of the fixed frame (21).
4. The film applicator with an automatic film alignment device according to claim 1, characterized in that: A hydraulic telescopic rod (25) is fixedly connected to the left end of the fixed frame (21), and a connecting block (26) is fixedly connected to the telescopic end of the hydraulic telescopic rod (25). The connecting block (26) is slidably connected inside the fixed frame (21), and the movable frame (27) is fixedly connected to the right end of the connecting block (26).
5. The film applicator with an automatic film alignment device according to claim 4, characterized in that: The fixing frame (21) has a matching groove at the corresponding position of the connecting block (26), and the connecting block (26) slides in the groove of the fixing frame (21).
6. The film applicator with an automatic film alignment device according to claim 1, characterized in that: The moving component includes casters (31), which are fixedly connected to the bottom of the frame (1). A fixing plate (32) is fixedly connected to the outside of the frame (1). A threaded rod (33) is threadedly connected inside the fixing plate (32). A pressure plate (34) is fixedly connected to the threaded rod (33). An anti-slip rubber pad (35) to improve friction is fixedly connected to the bottom of the pressure plate (34). A rotating handle (36) is fixedly connected to the top of the threaded rod (33).
7. The film applicator with an automatic film alignment device according to claim 6, characterized in that: The fixed plate (32), threaded rod (33), pressure plate (34), anti-slip rubber pad (35) and rotating handle (36) are all provided in four sets. The four sets of fixed plate (32), threaded rod (33), pressure plate (34), anti-slip rubber pad (35) and rotating handle (36) are symmetrically distributed on the outside of the frame (1).