LED display screen hot-pressing device
The carrier plate is moved by an electric telescopic rod and a gear and rack transmission mechanism, which solves the problem of cumbersome carrier plate replacement in LED display production, realizes rapid disassembly and installation of the carrier plate, and improves production efficiency and the accuracy of hot pressing connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI HONGYI NETWORK INFORMATION ENG CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-06-05
AI Technical Summary
In current LED display production, the replacement of the carrier board is a cumbersome process that affects production efficiency.
The carrier plate is moved by an electric telescopic rod and a gear and rack transmission mechanism. Combined with a limit plate and a touch button, it can be quickly disassembled and installed, simplifying the carrier plate replacement process.
It significantly reduces carrier plate replacement time, improves production efficiency, and ensures the accuracy and quality consistency of hot-pressed connections.
Smart Images

Figure CN224329657U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of LED display screen hot pressing technology, specifically referring to an LED display screen hot pressing device. Background Technology
[0002] In the manufacturing process of LED displays, zebra paper is often used as a connecting medium between printed circuit boards and LED displays, and the electrical connection between the two is achieved through a hot pressing process.
[0003] In the existing hot-pressing process, zebra paper and printed circuit boards need to be aligned and placed on a carrier plate, and then the carrier plate is fixed to the worktable for hot pressing. However, the carrier plate is fixed with screws. In actual production, the carrier plate needs to be frequently replaced to adapt to different batches or specifications of products. The screw fixing method makes the disassembly and installation of the carrier plate cumbersome and affects production efficiency. Utility Model Content
[0004] In order to overcome the shortcomings of the prior art, this utility model provides an LED display screen hot pressing device, which effectively solves the problem of inconvenient carrier board replacement.
[0005] To achieve the above functions, the technical solution adopted by this utility model is as follows: an LED display screen hot pressing device includes an operating table, a support frame fixed on the operating table, a lifting cylinder installed on the top of the support frame, a fixed plate fixed at the bottom movable end of the lifting cylinder, a hot pressing plate fixed on the fixed plate, a U-shaped limiting plate fixedly installed on the operating table below the support frame, a carrier plate slidably provided on the limiting plate, the limiting plate is used to limit and guide the carrier plate, the carrier plate is used to place printed circuit boards and zebra paper, and a transmission mechanism is provided on one side of the carrier plate on the operating table to drive the movement of the carrier plate and facilitate the disassembly of the carrier plate;
[0006] The transmission mechanism includes a groove embedded in the operating table. A horizontally arranged electric telescopic rod is fixed on the inner wall of the groove. A mounting plate is fixed to one end of the electric telescopic rod, and a motor is fixedly mounted on the mounting plate. A gear is fixedly connected to the output end of the motor. A rack that meshes with the gear is provided on the outer wall of the carrier plate. The motor drives the gear to rotate, and the gear drives the rack and the carrier plate to move. The electric telescopic rod moves the mounting plate, the motor, and the gear as a whole to the side away from the carrier plate, disengaging the gear from the rack, so that the carrier plate can be removed for replacement.
[0007] Preferably, a limiting frame is fixed on the mounting plate, and one end of the limiting frame abuts against one side of the carrier plate.
[0008] Preferably, the limiting plate has a touch button at one end near the hot press plate.
[0009] Preferably, the U-shaped limiting plate is made of metal, and its two side walls are arranged in parallel to match the structure on both sides of the carrier plate.
[0010] Preferably, the carrier plate is a rectangular plate structure, and the rack is arranged along the length direction of the carrier plate.
[0011] Preferably, a control button is installed on one side of the slot on the operating table. The control button is electrically connected to the electric telescopic rod. Limiting grooves are provided on the inner walls on both sides of the slot, and the mounting plate is slidably disposed on the limiting grooves.
[0012] The beneficial effects achieved by adopting the above-described structure are as follows:
[0013] 1. By pressing the control button, the carrier plate can be quickly disassembled and installed using components such as the electric telescopic rod and motor, which significantly shortens the carrier plate replacement time and improves production efficiency.
[0014] 2. The electric telescopic rod and gear and rack transmission mechanism can accurately control the moving distance and position of the carrier plate, so that the printed circuit board and zebra paper are accurately pushed under the hot press plate. In conjunction with the touch button on the limit plate to trigger the hot press action, the consistency of the sample position is guaranteed during each hot press, and the accuracy and quality of the hot press connection are improved. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of an LED display screen hot pressing device proposed in this utility model;
[0016] Figure 2 This is a front view of an LED display screen hot pressing device proposed in this utility model;
[0017] Figure 3 This is an axonometric view of an LED display screen hot pressing device proposed in this utility model;
[0018] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.
[0019] Among them, 1. operating table, 2. support frame, 3. lifting cylinder, 4. fixed plate, 5. hot press plate, 6. limit plate, 7. carrier plate, 8. transmission mechanism, 9. groove, 10. electric telescopic rod, 11. mounting plate, 12. motor, 13. gear, 14. rack, 15. limit frame, 16. touch button, 17. control button, 18. limit groove. Detailed Implementation
[0020] 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.
[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.
[0022] like Figure 1-4 As shown, the present invention proposes an LED display screen hot pressing device, including an operating table 1, a support frame 2 fixed on the operating table 1, a lifting cylinder 3 installed on the top of the support frame 2, a fixed plate 4 fixed at the bottom movable end of the lifting cylinder 3, a hot pressing plate 5 fixed on the fixed plate 4, a U-shaped limiting plate 6 fixedly installed on the operating table 1 below the support frame 2, a touch button 16 provided at one end of the limiting plate 6 near the hot pressing plate 5 for triggering the hot pressing mechanism, a carrier plate 7 slidably provided on the limiting plate 6, the limiting plate 6 being made of metal, its two side walls being arranged parallel to the structure on both sides of the carrier plate 7 to ensure that the carrier plate 7 slides smoothly on the limiting plate 6, the limiting plate 6 being used to limit and guide the carrier plate 7, the carrier plate 7 being used to place printed circuit boards and zebra paper, a transmission mechanism 8 provided on one side of the carrier plate 7 on the operating table 1 for driving the movement of the carrier plate 7 and facilitating the disassembly of the carrier plate 7;
[0023] The transmission mechanism 8 includes a groove 9, which is embedded in the operating table 1. A horizontally arranged electric telescopic rod 10 is fixed on the inner wall of the groove 9. A mounting plate 11 is fixed to one end of the electric telescopic rod 10. A motor 12 is fixedly installed on the mounting plate 11. A gear 13 is fixedly connected to the output end of the motor 12. A rack 14 that meshes with the gear 13 is provided on the outer wall of the carrier plate 7. The carrier plate 7 is a rectangular plate structure. The rack 14 is arranged along the length of the carrier plate 7. The motor 12 drives the gear 13 to rotate. The gear 13 drives the rack 14 and the carrier plate 7 to move. The electric telescopic rod drives the mounting plate 11, the motor 12 and the gear 13 to move as a whole away from the carrier plate 7, disengaging the gear 13 from the rack 14, so that the carrier plate 7 can be removed for replacement.
[0024] like Figure 4As shown, a limiting frame 15 is fixed on the mounting plate 11. One end of the limiting frame 15 abuts against one side of the carrier plate 7 to limit the carrier plate 7. When the mounting plate 11 is moved out, the limiting frame 15 also moves accordingly to release the limitation on the carrier plate 7.
[0025] like Figure 1 , 4 As shown, a control button 17 is installed on one side of the groove 9 on the operating table 1. The control button 17 is electrically connected to the electric telescopic rod 10. Limiting grooves 18 are provided on the inner walls on both sides of the groove 9. The mounting plate 11 is slidably disposed on the limiting grooves 18 to limit the mounting plate 11.
[0026] In practical use, the printed circuit board and zebra paper are aligned and placed on the carrier plate 7 according to the process requirements. The motor 12 is started by the control system, which drives the gear 13 to rotate. The gear 13 meshes with the rack 14, causing the carrier plate 7 to slide along the U-shaped limiting plate 6 towards the hot pressing plate 5. When the carrier plate 7 slides below the hot pressing plate 5 and touches the touch button 16 on the U-shaped limiting plate 6, the touch button 16 sends a signal back to the control system. The control system then starts the lifting cylinder 3, which moves the hot pressing plate 5 downward to heat-press the printed circuit board and zebra paper together. After the heat pressing is completed, the lifting cylinder 3 moves the hot pressing plate 5 upward to reset it. The motor 12 drives the gear 13 to rotate in the opposite direction to reset the carrier plate 7. The heat-pressed printed circuit board and zebra paper are then removed for the next heat pressing cycle.
[0027] When it is necessary to replace the carrier plate 7, press the control button 17. The electric telescopic rod 10 will move the mounting plate 11 and gear 13 away from the rack 14, causing the gear 13 to disengage from the rack 14. When the mounting plate 11 moves out, the limiting frame 15 will also move accordingly, releasing the limitation on the carrier plate 7. At this time, the carrier plate 7 can be directly removed from the U-shaped limiting plate 6 and a new carrier plate 7 can be replaced. When installing the new carrier plate 7, push the carrier plate 7 onto the limiting plate 6 so that one side of the carrier plate 7 is aligned with the limiting frame 15 and abuts against one side of the carrier plate 7. Press the control button 17 again. The electric telescopic rod 10 will move the mounting plate 11 and gear 13 closer to the rack 14, causing the gear 13 to mesh with the rack 14, and the carrier plate 7 will be installed.
[0028] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A hot pressing device for an LED display screen, characterized in that: The system includes an operating table (1), on which a support frame (2) is fixed. A lifting cylinder (3) is installed on the top of the support frame (2). A fixing plate (4) is fixed at the bottom movable end of the lifting cylinder (3). A hot press plate (5) is fixed on the fixing plate (4). A U-shaped limiting plate (6) is fixedly installed on the operating table (1) below the support frame (2). A carrier plate (7) is slidably provided on the limiting plate (6). A transmission mechanism (8) is provided on one side of the carrier plate (7) on the operating table (1) for driving the movement of the carrier plate (7) and for easy disassembly of the carrier plate (7). The transmission mechanism (8) includes a groove (9) which is embedded in the operating table (1). A horizontally arranged electric telescopic rod (10) is fixed on the inner wall of the groove (9). A mounting plate (11) is fixed at one end of the electric telescopic rod (10). A motor (12) is fixedly installed on the mounting plate (11). A gear (13) is fixedly connected to the output end of the motor (12). A rack (14) that meshes with the gear (13) is provided on the outer wall of the carrier plate (7).
2. The LED display screen hot pressing device according to claim 1, characterized in that: A limiting frame (15) is fixed on the mounting plate (11), and one end of the limiting frame (15) abuts against one side of the carrier plate (7).
3. The LED display screen hot pressing device according to claim 2, characterized in that: The limiting plate (6) has a touch button (16) at one end near the hot press plate (5).
4. The LED display screen hot pressing device according to any one of claims 1-3, characterized in that: The limiting plate (6) is made of metal, and its two side walls are arranged in parallel to match the structure on both sides of the carrier plate (7).
5. The LED display screen hot pressing device according to claim 2, characterized in that: The carrier plate (7) is a rectangular plate structure, and the rack (14) is arranged along the length direction of the carrier plate (7).
6. The LED display screen hot pressing device according to claim 1, characterized in that: A control button (17) is installed on the side of the groove (9) on the operating table (1). The control button (17) is electrically connected to the electric telescopic rod (10). Limiting grooves (18) are provided on the inner walls on both sides of the groove (9). The mounting plate (11) is slidably disposed on the limiting grooves (18).