Packaging process and trimming equipment for packaging semitransparent self-generating LED display screen

Abstract

The invention relates to a packaging process and trimming equipment for packaging a semitransparent self-generating LED display screen, and belongs to the technical field of production and packaging of semitransparent LED display screens, the trimming equipment comprises a first roller conveying belt, a second roller conveying belt and a third roller conveying belt, one end of the first roller conveying belt extends outwards to serve as a reversing end; the second roller conveying belt and the first roller conveying belt are located on the same plane and are perpendicular to each other; the trimming devices are arranged on the two sides of the first roller conveying belt and the two sides of the second roller conveying belt correspondingly. The ends of the bearing rollers are rotationally connected to the inner side of the reversing end, the multiple bearing rollers are arranged at intervals, and the positions between the adjacent bearing rollers serve as mounting areas; the mounting bracket is arranged in the mounting area; the reversing wheel is rotationally connected to the mounting bracket; and the lifting and inclining device is located below the reversing wheel. The edge trimming device has the following advantage and effect that the edge trimming efficiency of the periphery of the assembly can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of production and packaging of a translucent LED display screen, and in particular to a packaging process and trimming equipment for packaging a translucent self-generating LED display screen. Background Art

[0002] Transparent LED Display is a transparent display screen whose working principle is mainly based on the combination of LED (Light Emitting Diode) technology and transparent materials.

[0003] The core of the LED transparent screen is composed of many tiny LED dot matrices. These LED dot matrices are embedded in transparent materials such as glass or plastic. Each LED dot matrix contains LED beads of the three basic colors of red, green, and blue, which can emit light independently.

[0004] When the LED transparent screen receives a signal from an image source, the control circuit will precisely control each LED dot matrix. By adjusting the brightness and color of the red, green, and blue LED beads in each LED dot matrix, the LED transparent screen can display various images and videos.

[0005] The transparency of LED transparent screens comes from the use of transparent materials as the display medium. This material allows light to pass through the screen, while also allowing the LED matrix to emit light. This allows people to see through the screen to the objects behind it, while also being able to see the images or videos displayed on the screen.

[0006] The working principle of the LED transparent screen is to achieve the characteristics of transparency and display function at the same time by controlling the brightness and color of the LED lamp beads in the LED dot matrix and using transparent materials as the display medium.

[0007] In the existing technology, the packaging of LED transparent screens or translucent LED screens mainly presses the LED modules, glass and power supplies together through a lamination process. During lamination, the adhesive film melts and extends outward due to pressure to solidify to form burrs. Therefore, the burrs need to be trimmed after lamination. At present, in the existing technology, the burrs around the component can be trimmed after multiple high-speed rotating edging wheels come into contact with the periphery of the component. However, burrs will be generated on all sides of the component. When the four sides of the component need to be trimmed, it is necessary to first trim one side of the component, such as the width direction, with the edging wheel, and then rotate the component 90 degrees, and then contact the component with the edging wheel to complete the trimming of the length direction of the component. When the component is rotated, the equipment needs to be shut down, so there are certain limitations on the overall trimming efficiency. Summary of the Invention

[0008] To address the shortcomings of the existing technology, the present invention aims to provide a trimming device for the packaging of translucent self-generating LED displays. This device improves the efficiency of component commutation, thereby increasing the efficiency of trimming the components around them and thus improving the overall packaging efficiency of the display. Another object of the present invention is to provide a packaging process for translucent self-generating LED displays.

[0009] To achieve the above-mentioned object, the present invention provides the following technical solution: a packaging process for a translucent self-generating LED display screen, the packaging process comprising the following steps: Preparation of perovskite cells: Semi-transparent perovskite cells are prepared using the perovskite production process; Collection and extraction of perovskite battery electrodes: The positive and negative electrodes of the perovskite battery are collected through the welding ribbon and the electrodes are extracted; Laying packaging materials: Apply a circle of butyl adhesive around the perovskite battery module and then cover it with adhesive film; Prepare PCB board; Lamp bead patching: patch the PCB board to use as an LED module; Laying the LED module: Gather the positive and negative poles of the LED module through the soldering tape, lead out the electrodes, and lay the LED module on top of the film, ensuring that each layer is aligned.

[0010] Press the cover plates on both sides of the LED module; Component lamination: laminating the perovskite cell, LED module and cover plate to form a component; Trim the edges around the components; Perform reverse current testing on components; Frame the components; Solder the junction box to the module and connect it to the electrodes of the perovskite cell and LED module respectively to power the module; Connect the positive and negative poles of the LED module to the driver cable connector, solder the power connector, solder the capacitor, and solder the driver IC; Run the test: Expose the component to light and observe the component display.

[0011] The present invention is further configured as follows: the adhesive film is a POE or EVA adhesive film, and the PCB board uses epoxy resin or glass as a supporting material.

[0012] To achieve the above object, the present invention further provides a trimming device for packaging a translucent self-generating LED display screen, comprising: a first roller conveyor belt, wherein one end of the first roller conveyor belt extends outward as a reversing end; a second roller conveyor belt, wherein the second roller conveyor belt and the first roller conveyor belt are located in the same plane and are perpendicular to each other; A trimming device, wherein the trimming device is respectively arranged on both sides of the first roller conveyor belt and the second roller conveyor belt; A receiving roller, the end of which is rotatably connected to the inner side of the reversing end. There are multiple receiving rollers that are spaced apart from each other, and the space between adjacent receiving rollers serves as an installation area. A mounting bracket, wherein the mounting bracket is arranged in the mounting area; A reversing wheel, the reversing wheel being rotatably connected to a mounting bracket, wherein the mounting brackets are multiple and spaced apart from each other; A lifting and tilting device, wherein the lifting and tilting device is located below the reversing wheel; The lifting and tilting device is used to drive the reversing wheel to lift and tilt toward the second roller conveyor belt, so as to guide the components transported to the receiving roller toward the second roller conveyor belt.

[0013] The present invention is further configured as follows: the lifting and tilting device includes a lifting mechanism and a tilting mechanism, and the tilting mechanism includes: A connecting seat, the connecting seat is fixed to the mounting bracket; A base, wherein a mounting groove is provided in the base, and guide openings are provided on both sides of the base that penetrate through and communicate with the mounting groove; A base, the base is fixed to the pedestal, and one end of the connecting seat is rotatably connected to the base; A lead screw, the lead screw being arranged in the mounting groove, and the end of the lead screw being rotatably connected to the inner side of the base; A guide seat is sleeved on the outer periphery of the lead screw and forms a threaded fit with the lead screw. Both sides of the guide seat are provided with guide portions extending toward and coupled to the guide port. A connecting rod, which is arranged on both sides of the base, with one end of the connecting rod being rotatably connected to the guide portion and the other end being rotatably connected to the connecting seat; A transmission gear, wherein the transmission gear is fixed to the outer periphery of the lead screw; A transmission rack is engaged with the transmission gear, and one end of the transmission rack extends downward as an extended end.

[0014] The present invention is further configured as follows: the lifting mechanism includes: a first guide tube, the first guide tube being connected to the bottom of the base and extending downward, and the number of the first guide tubes being multiple; a second guide tube connected to the bottom of the base and extending downward, wherein the extending end extends into the second guide tube; A hydraulic cylinder, wherein the output ends of the hydraulic cylinder are respectively provided with a first push rod and a second push rod, wherein the first push rod and the second push rod are respectively opposite to the first guide tube and the second guide tube; a first buffer spring, one end of which is fixed in the first guide tube, and the other end of which is fixed to the first push rod; A second buffer spring, one end of the second buffer spring is fixed to the extending end, and the other end is fixed to the second push rod.

[0015] The present invention is further configured as follows: the trimming device comprises: Mounting rack; An edge grinding wheel, the edge grinding wheel is connected to the mounting frame for rotation in a vertical direction, the edge grinding wheel is in plurality and spaced apart from each other, and one end of the edge grinding wheel extends upward as a transmission end; A transmission wheel, the transmission wheel is fixed to the transmission end; A transmission belt, the transmission belt is sleeved on the transmission wheel and meshed with the transmission wheel; A drive motor is used to drive the multiple edge grinding wheels to rotate.

[0016] The present invention is further configured to include: a guide wheel, the mounting frame is located on a side away from the edge grinding wheel and extends outward as a mounting end, the guide wheel is rotatably connected to the mounting end along the vertical direction, and the guide wheels are multiple and spaced apart from each other.

[0017] The present invention is further configured to include: a guide rod fixed in a vertical direction, a guide hole penetrating the base, the guide hole being opposite to the guide rod, the guide hole being for the guide rod to pass through, and forming a sliding fit between the two.

[0018] The present invention is further configured to include a tensioning pulley, which is rotatably connected to the mounting frame along a vertical direction and is used to tighten the transmission belt.

[0019] Compared with the prior art, the present invention has the following beneficial effects: Since a first roller conveyor belt and a second roller conveyor belt are provided which are located in the same plane and are perpendicular to each other, and a trimming device is provided on both sides of the first roller conveyor belt and the second roller conveyor belt, when the component to be trimmed is conveyed by the first roller conveyor belt, the long side of the component can contact the trimming device, thereby completing the trimming of the long side of the component. Then, after the component is sent to the lifting and tilting device, the component can be received by the receiving roller, and then by lifting and tilting the component, the component can slide toward the second roller conveyor belt under the action of gravity. In this way, after the component enters the second roller conveyor belt, the short side of the component can contact the trimming devices on both sides of the second roller conveyor belt, thereby completing the trimming of the short side of the component during the process of conveying the component by the second roller conveyor belt, thereby enabling the long and short sides of the component to be trimmed continuously. Therefore, the technical problem of the long stagnation time when trimming the component in the prior art, which affects the overall trimming efficiency, is effectively solved, thereby improving the efficiency of trimming the four sides of the component, thereby improving the overall packaging efficiency of the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the component packaging structure after packaging by the packaging process of the present invention (1); Figure 2 Schematic diagram of the component packaging structure after packaging by the packaging process of the present invention (II); Figure 3 Schematic diagram of the overall structure of the trimming equipment of the present invention; Figure 4 It is a schematic diagram of the three-dimensional relationship between the lifting and tilting device and the receiving roller in the trimming equipment of the present invention when the lifting and tilting device is not lifted and tilted; Figure 5 It is a schematic diagram of the three-dimensional relationship between the lifting and tilting device and the receiving roller when the lifting and tilting device in the trimming equipment of the present invention is lifted and tilted; Figure 6 Schematic diagram of the connection relationship between the first push rod and the first guide tube in the trimming device of the present invention; Figure 7 Schematic diagram of the connection relationship between the second push rod and the second guide tube in the trimming device of the present invention; Figure 8 This is a schematic diagram of the specific structure of the connecting seat in the trimming equipment of the present invention; Figure 9 Schematic diagram of the plane cross-section relationship between the lifting and tilting device and the receiving roller in the trimming equipment of the present invention when the lifting and tilting device is not lifted and tilted; Figure 10 This is a partial enlarged structural diagram of the trimming equipment A of the present invention. In the figure: second roller conveyor belt 1; first roller conveyor belt 2; reversing end 21; receiving roller 3; mounting bracket 4; reversing wheel 5; connecting seat 61; yielding opening 611; connecting flange 612; base 62; mounting groove 621; guide opening 622; screw 63; guide seat 64; guide portion 641; connecting rod 65; transmission gear 66; transmission rack 67; extension end 671; base 68; guide hole 681; first guide tube 71; second guide tube 72; hydraulic cylinder 73; first push rod 74; second push rod 75; first buffer spring 76; second buffer spring 77; mounting bracket 81; edge grinding wheel 82; transmission end 821; transmission wheel 83; transmission belt 84; drive motor 85; guide wheel 9; guide rod 10; tensioner 11; glass a; LED module b; adhesive film c; butyl adhesive d; perovskite cell e; component f. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] The structure of a perovskite cell can be divided into TCO conductive glass, electron transport layer, perovskite layer, hole transport layer, and top electrode. Under sunlight, the perovskite layer is excited, generating pairs of photogenerated electrons and holes. These two carriers are transported by the electron transport layer and hole transport layer to the TCO conductive layer and top electrode, respectively, generating a potential difference and forming a built-in electric field. The current mainstream perovskite cell production process on the market is as follows: The raw material for the top electrode is ITO / FTO conductive glass.

[0024] Laser etching: After the transparent conductive electrode TCO is deposited and before the charge transfer layer is deposited, laser etching is performed using an etching device to form independent strip-shaped conductive electrodes.

[0025] Preparation of the first charge transport layer film: PVD equipment or a coating machine can be used to adopt magnetron sputtering deposition, coating, printing and other methods.

[0026] Preparation of perovskite thin film: It can be carried out by coating, printing or deposition using a doctor blade or slit coater.

[0027] Preparation of the second charge transport layer film: RPD equipment or a coater can be used to adopt deposition, coating, printing and other methods.

[0028] Laser etching: After the second charge transport layer is deposited and before the bottom electrode is deposited, laser etching is performed to remove the HTL / perovskite layer / ETL, leaving the TCO layer and forming a gap.

[0029] Sputtering top electrode: using PVD equipment or RPD equipment using magnetron sputtering or evaporation deposition methods.

[0030] Laser etching: Use etching equipment to remove the bottom electrode layer / HTL / perovskite layer / ETL of adjacent cells, leaving the TCO layer and separating each perovskite cell.

[0031] Testing: Use various test equipment to test its efficiency and functionality.

[0032] Encapsulation: Apply a circle of butyl adhesive around the module. Then cover it with POE or EVA film and finally cover it with cover glass for lamination. The advantage of edge encapsulation is that it can reduce the impact on the contact layer and reduce the possibility of side reactions between the encapsulation material and perovskite. At the same time, it has lower requirements for material transmittance. like Figure 1 and Figure 2 As shown, based on the existing perovskite battery e-process production process, the present invention discloses a packaging process for semi-transparent self-powered LED display packaging, which includes the following steps: Preparation of perovskite cell e: A semi-transparent perovskite cell e was prepared using the above-mentioned perovskite cell e production process.

[0033] The collection and lead-out of the e-electrodes of the perovskite battery: The positive and negative electrodes of the perovskite battery are collected through the welding strips and the electrodes are led out.

[0034] Laying packaging materials: Apply a circle of butyl glue d around the perovskite battery e module, and then cover it with a film c, which is POE or EVA.

[0035] Prepare a PCB (Printed Circuit Board). A PCB, also known as a printed circuit board, is a board made by patterning conductive copper foil onto an insulating material (such as fiberglass or epoxy resin) to form electrical connections between electronic components. Its primary function is to achieve electrical connections between electronic components through these copper foil traces and to support and secure the components to the board. In this invention, the PCB board is made of either epoxy resin or glass as the supporting material.

[0036] SMD of lamp beads: SMD the PCB board. The specific steps are as follows: Prepare PCB boards, LED lamp beads, solder paste, placement machines and other equipment and materials; Clean the PCB board and remove the dirt and oxide on the surface to ensure the adhesion of the patch. Apply a layer of solder paste evenly on the PCB board; Place the LEDs at the feed port of the SMT machine and start the machine to mount the LEDs. During the SMT process, ensure that the LEDs are positioned accurately and in the correct direction to avoid deviation or reverse placement. At the same time, control the placement speed and pressure to ensure that the LEDs are firmly adhered to the PCB. Finally, quality inspection is carried out to check whether the patch is accurate, whether the solder joints are firm, whether the lamp beads are damaged, etc. To ensure the quality and reliability of the patch, the PCB board with the lamp beads attached is called an LED module b as a whole.

[0037] Laying LED module b: Gather the positive and negative poles of LED module b through the welding tape, and lead out the electrodes. Lay LED module b on top of film c, ensuring that each layer is aligned.

[0038] The cover plates are pressed on both sides of the LED module b. In this embodiment, the cover plates are glass a. Figure 1 As shown in the figure, when the PCB board uses epoxy resin as the supporting material, after the LED module b is laid on the POE or EVA film c, it needs to be covered with glass a for packaging, that is, glass a is pressed on both sides; like Figure 2 As shown in FIG, when the PCB board uses glass as the supporting material, the LED module b also serves as the glass and can be directly packaged, that is, it only needs to press the glass a on one side.

[0039] Module lamination: The perovskite cell e, LED module b, and cover plate are laminated to form a module. This involves placing the pre-assembled perovskite cell e and LED module b into a laminator. The air inside the module is removed through vacuum pumping. Heat is then applied to melt the adhesive film c, bonding the perovskite cell e, glass, and cover plate together. Finally, the module is removed. The lamination process is a critical step in module production, and the lamination temperature and time are determined by the properties of the adhesive film c.

[0040] Trim the edges around the component. During lamination, the adhesive film C melts and extends outward due to pressure and solidifies to form burrs, so the burrs should be removed after lamination.

[0041] Perform reverse current testing on the components, use a regulated power supply to apply positive or negative bias to the solar cell, and then observe the infrared thermal image to determine whether the cell has defects such as hidden cracks and cold solder joints.

[0042] Framing the module is similar to framing a glass panel. The aluminum frame adds strength to the module and further seals the perovskite cell, extending its lifespan. The gap between the frame and the glass module is filled with silicone resin, and the frames are connected using angle bonds.

[0043] The junction box is welded to the component, that is, a junction box is welded to the lead on the back of the component, and the perovskite cell e is connected to the battery as the power supply for the LED.

[0044] Connect the positive and negative poles of LED module b to the driver cable connector, solder the power connector, solder the capacitor, and solder the driver IC; Run the test: Place the entire assembly in a well-lit area and observe the video playback on the LED screen.

[0045] In the aforementioned packaging process, a translucent self-generating LED display assembly f is fabricated by integrating a perovskite cell e and an LED module b. This converts the power source required by the LED display from a battery to a combination of a perovskite cell e and a small-capacity battery. Due to the transparent nature of the LED screen, the transmittance can reach 90%. When incident light strikes the LED screen, the majority of the light is blocked by the LEDs, while the perovskite cell e absorbs the light and converts it into a photoelectric conversion power source for the LEDs. This controls the display's photoelectric effects, enabling video playback. By modifying certain structural features of the perovskite cell e, a translucent solar cell device can be created. Compared to traditional crystalline silicon cells, the perovskite cell e and the LED display can be made completely translucent, making the entire assembly f more aesthetically pleasing and suitable for commercial displays. Furthermore, the excellent low-light performance of perovskite means that the perovskite cell e can effectively utilize low-light sources such as indoor and outdoor lighting to generate electricity, a significant difference between perovskite photovoltaics and traditional silicon-based photovoltaics.

[0046] like Figures 3 to 10 As shown, the present invention discloses a trimming device for packaging a translucent self-generating LED display screen, which trims the edges of the laminated components, including: A first roller conveyor belt 2, one end of the first roller conveyor belt 2 extending outward as a reversing end 21; The second roller conveyor belt 1 and the first roller conveyor belt 2 are located in the same plane and are perpendicular to each other; Trimming devices, the trimming devices are respectively arranged on both sides of the first roller conveyor belt 2 and the second roller conveyor belt 1; The receiving roller 3 has its end rotatably connected to the inner side of the reversing end 21. There are multiple receiving rollers 3 that are spaced apart from each other, with the space between adjacent receiving rollers 3 serving as an installation area. Mounting bracket 4, the mounting bracket 4 is arranged in the mounting area; The reversing wheel 5 is rotatably connected to the mounting bracket 4. The mounting brackets 4 are multiple and spaced apart from each other. A lifting and tilting device is located below the reversing wheel 5; The lifting and tilting device is used to drive the reversing wheel 5 to lift and tilt toward the second roller conveyor belt 1, so as to guide the components conveyed to the receiving roller 3 toward the second roller conveyor belt 1; Specifically, when the component to be trimmed is conveyed through the first roller conveyor belt 2, the long side of the component can contact the trimming device to complete the trimming of the long side of the component. Then, after the component is sent to the lifting and tilting device, the component can be received by the lifting receiving roller 3, and then by lifting and tilting the component, the component can slide toward the second roller conveyor belt 1 under the action of gravity. In this way, after the component enters the second roller conveyor belt 1, the short side of the component can contact the trimming devices on both sides of the second roller conveyor belt 1, so that the trimming of the short side of the component can be completed in the process of the second roller conveyor belt 1 conveying the component, so that the long and short sides of the component can be continuously trimmed, reducing downtime, and thus improving the efficiency of trimming the four sides of the component, thereby improving the overall packaging efficiency of the display screen.

[0047] As an optional embodiment of the present invention, the lifting and tilting device includes a lifting mechanism and a tilting mechanism, and the tilting mechanism includes: Connecting seat 61, connecting seat 61 is fixed to the mounting bracket 4; A base 62, wherein a mounting groove 621 is provided in the base 62, and guide openings 622 are provided on both sides of the base 62 and pass through and communicate with the mounting groove 621; A base 68 is fixed to the base 62, and one end of the connecting seat 61 is rotatably connected to the base 68; The lead screw 63 is disposed in the mounting groove 621 , and the end of the lead screw 63 is rotatably connected to the inner side of the base 62 ; The guide seat 64 is mounted on the outer periphery of the lead screw 63 and is threadedly engaged with the lead screw 63. Guide portions 641 extending toward and coupled to the guide opening 622 are provided on both sides of the guide seat 64. Connecting rod 65, the connecting rod 65 is provided on both sides of the base 62, one end of the connecting rod 65 is rotatably connected to the guide portion 641, and the other end is rotatably connected to the connecting base 61; The transmission gear 66 is fixed to the outer periphery of the lead screw 63; A transmission rack 67 , the transmission rack 67 is engaged with the transmission gear 66 , and one end of the transmission rack 67 extends downward as an extension end 671 ; Specifically, when it is necessary to drive the component conveyed to the receiving roller 3 to tilt, by driving the transmission rack 67 to move in the vertical direction, the transmission gear 66 meshing with the transmission rack 67 can be driven to rotate, so that the screw 63 can be driven to rotate. As the screw 63 rotates, the guide seat 64, which is sleeved on the outer periphery of the screw 63 and forms a threaded fit with the screw 63, can move along the direction of the screw 63 under the action of the guide limit formed between the guide portion 641 and the guide opening 622. In this way, the connecting rod 65 can be driven to push the connecting seat 61 to rotate with the connection with the base 68 as the rotation center, so that the reversing wheel 5 can contact the component on the receiving roller 3 to drive the component to tilt, so that as the tilt angle increases, the component can slide toward the second roller conveyor belt 1 under the action of gravity; Similarly, it is only necessary to drive the transmission rack 67 to move in the opposite direction to drive the lead screw 63 to reverse, so that the connecting seat 61 can be reset to a horizontal position again, so as to receive the subsequently fed components. The setting of the reversing wheel 5 makes the friction on the component rolling friction, so that the component can slide to the second roller conveyor belt 1 after generating a small tilt angle, thereby shortening the time for tilting and resetting the lifting and tilting device, thereby improving the trimming efficiency around the component in disguise. In addition, it should be noted that a clearance opening 611 is provided on the connecting seat 61, and the clearance opening 611 allows the receiving roller 3 to pass through when the lifting and tilting device belt assembly is tilted, so as to avoid interference between the connecting seat 61 and the receiving roller 3, which may affect the tilting of the lifting and tilting device.

[0048] As an optional embodiment of the present invention, the lifting mechanism includes: a first guide tube 71 connected to the bottom of the base 68 and extending downward; and a plurality of first guide tubes 71; A second guide tube 72 , which is connected to the bottom of the base 68 and extends downward, and the extension end 671 extends into the second guide tube 72 ; A hydraulic cylinder 73, wherein the output ends of the hydraulic cylinder 73 are provided with a first push rod 74 and a second push rod 75, respectively. The first push rod 74 and the second push rod 75 are opposite to the first guide tube 71 and the second guide tube 72, respectively; A first buffer spring 76 , one end of which is fixed in the first guide tube 71 , and the other end of which is fixed to the first push rod 74 ; A second buffer spring 77 , one end of the second buffer spring 77 being fixed to the extension end 671 , and the other end being fixed to the second push rod 75 ; The first and second push rods 74 and 75 are respectively moved toward the first guide tube 71 and the second guide tube 72 by the hydraulic cylinder 73. Since the first and second buffer springs 76 and 77 are respectively provided in the first and second guide tubes 71 and 72, when the first push rod 74 pushes the base 68 to be lifted, the first buffer spring 76 can be gradually compressed, so that the force acting on the base 68 can be gradually increased, thereby gradually lifting the base 68, making the lifting of the base 68 more stable. In addition, it should be noted that in this embodiment, the first and second buffer springs 76 and 77 are of the same length, and the stiffness coefficient of the first buffer spring 76 is smaller than the stiffness coefficient of the second buffer spring 77. The first guide tube 71 and the second guide tube 72 are both connected to the output end of the hydraulic cylinder 73. Therefore, the movement distance of the first guide tube 71 and the second guide tube 72 is the same, so that the pressure on the first buffer spring 76 and the second buffer spring 77 is the same. In this way, the second buffer spring 77 needs a longer compression distance than the first buffer spring 76 to be fully compressed. In this way, after the base 68 is lifted a certain distance, the transmission rack 67 can be driven to move, thereby ensuring that only a single hydraulic cylinder 73 can drive the connecting seat 61 to be lifted and tilted, making the overall design more compact and reasonable. At the same time, it can ensure that the base 68 is lifted a certain distance, so that the reversing wheel 5 contacts the component and then drives the connecting seat 61 to tilt. In this way, in the process of the component sliding toward the second roller conveyor belt 1, most of the friction encountered by the component is rolling friction generated by contact with the reversing wheel 5, thereby reducing the wear encountered by the component during the reversing process. In addition, it should be noted that a downwardly extending connecting flange 612 is provided on the connecting seat 61, and one end of the connecting rod 65 is connected to the connecting flange 612 to achieve a rotational connection with the connecting seat 61. In this way, the connecting rod 65 can be located below the connecting seat 61, so that when the connecting seat 61 is driven to be lifted, interference between the connecting rod 65 and the receiving roller 3 can be avoided.

[0049] As an optional embodiment of the present invention, the trimming device includes: Mounting frame 81; An edge grinding wheel 82 is rotatably connected to the mounting frame 81 in a vertical direction. There are multiple edge grinding wheels 82 that are spaced apart from each other. One end of the edge grinding wheel 82 extends upward to serve as a transmission end 821. The transmission wheel 83 is fixed to the transmission end 821; A transmission belt 84 is mounted on the transmission wheel 83 and meshes with the transmission wheel 83; A driving motor 85 is used to drive the plurality of edge grinding wheels 82 to rotate; Specifically, through the transmission cooperation between the transmission belt 84 and each transmission wheel 83, the driving motor 85 can drive each edge grinding wheel 82 to rotate. In this way, when the first roller conveyor belt 2 and the second roller conveyor belt 1 respectively drive the components to convey, the edge grinding wheels 82 on both sides of the first roller conveyor belt 2 and the edge grinding wheels 82 on both sides of the second roller conveyor belt 1 can respectively contact the long side and short side of the component, so that the four sides of the component can be trimmed.

[0050] As a further embodiment of the present invention, it also includes a guide wheel 9, and the mounting frame 81 is located on the side away from the edge grinding wheel 82 and extends outward as the mounting end. The guide wheel 9 is connected to the mounting end by rotating in the vertical direction. There are multiple guide wheels 9 and they are arranged at intervals from each other. Through the arrangement of the guide wheels 9, before the component contacts the edge grinding wheel 82, the guide wheels 9 on both sides can correct the component during the transportation process, thereby ensuring that both sides of the component can contact the edge grinding wheel 82.

[0051] As a further embodiment of the present invention, it also includes a guide rod 10 fixed in the vertical direction, and a penetrating guide hole 681 is provided on the base 68. The guide hole 681 is opposite to the guide rod 10, and the guide hole 681 is for the guide rod 10 to pass through, and can constitute a sliding fit between the two. Since the first push rod 74 is connected to the base 68 through the first buffer spring 76, the guide rod 10 is set so that the guide rod 10 can pass through the guide hole 681 on the base 68, thereby avoiding the base 68 from tilting laterally during the lifting process, thereby ensuring that the base 68 is more stable during lifting.

[0052] As a further embodiment of the present invention, it also includes a tensioner 11, which is connected to the mounting frame 81 and rotates in the vertical direction. The tensioner 11 is used to tighten the transmission belt 84. Through the setting of the tensioner 11, the transmission belt 84 can be pressed to tighten the transmission belt 84, thereby ensuring that sufficient friction can be generated between the transmission belt 84 and the transmission wheel 83, thereby facilitating the driving motor 85 to drive each edge grinding wheel 82 to rotate through the transmission belt 84.

[0053] The present invention implements the working principle as follows: The components laminated through the above steps are placed on the first roller conveyor belt 2, and the components are conveyed by the first roller conveyor belt 2. During the process of conveying the components on the first roller conveyor belt 2, the guide wheels 9 on both sides of the first roller conveyor belt 2 can correct the components being conveyed to ensure that the long side of the components can fully contact the grinding wheels 82 on the first roller conveyor belt 2 to complete the trimming of the long side of the components. Then, after the components are conveyed to the receiving roller 3, the receiving roller 3 receives the components. Since the receiving roller 3 is not connected to the power source, in order to avoid the effect of inertia, the components slide out from the receiving roller 3, and a baffle 22 is fixed on the reversing end 21. In this way, the baffle 22 blocks the components, which can ensure that the receiving roller 3 can stably receive the components. Then, the hydraulic cylinder 73 drives the first push rod 74 and the second push rod 75 to be ejected, and can drive the base 68 to lift a certain height. After the distance, the transmission rack 67 and the transmission gear 66 are meshed with each other to drive the screw 63 to rotate, so that the guide seat 64 can be driven to move along the direction of the screw 63, thereby driving the connecting rod 65 to push the connecting seat 61 to rotate, so that the reversing wheel 5 installed on the connecting seat 61 through the mounting bracket 4 can follow the connecting seat 61 to tilt toward the second roller conveyor belt 1, so that the component supported by the receiving roller 3 can slide toward the second roller conveyor belt 1 under the action of gravity, realizing the reversal of the component, and then, the second roller conveyor belt 1 transports the component. In the process of conveying the component on the second roller conveyor belt 1, the guide wheels 9 on both sides of the second roller conveyor belt 1 can correct the deviation of the component in transit to ensure that the short side of the component can fully contact the grinding wheel 82 on the second roller conveyor belt 1 to complete the trimming of the short side of the component, and then complete the rapid trimming of the four sides of the component.

[0054] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A packaging process for a semi-transparent self-generating LED display screen, characterized in that: The packaging process includes the following steps: Preparation of perovskite cells: Semi-transparent perovskite cells are prepared using the perovskite cell production process; Collection and extraction of perovskite battery electrodes: The positive and negative electrodes of the perovskite battery are collected through the welding ribbon and the electrodes are extracted; Laying packaging materials: Apply a circle of butyl adhesive around the perovskite battery module and then cover it with adhesive film; Prepare PCB board; Lamp bead patching: patch the PCB board to use as an LED module; Laying the LED module: gather the positive and negative electrodes of the LED module through the soldering tape, lead out the electrodes, and lay the LED module on top of the film, ensuring that each layer is aligned; Press the cover plates on both sides of the LED module; Component lamination: laminating the perovskite cell, LED module and cover plate to form a component; Trim the edges around the components; Perform reverse current testing on components; Frame the components; Solder the junction box to the module and connect it to the electrodes of the perovskite cell and LED module respectively to power the module; Connect the positive and negative poles of the LED module to the driver cable connector, solder the power connector, solder the capacitor, and solder the driver IC; Run the test: Expose the component to light and observe the component display.

2. The packaging process for a semi-transparent self-generating LED display according to claim 1, characterized in that: The adhesive film is POE or EVA adhesive film, and the PCB board uses epoxy resin or glass as a supporting material.

3. A trimming device for packaging a translucent self-generating LED display screen, characterized in that: The packaging process applicable to any of the above-mentioned translucent self-generating LED display screens includes: a first roller conveyor belt, wherein one end of the first roller conveyor belt extends outward as a reversing end; a second roller conveyor belt, wherein the second roller conveyor belt and the first roller conveyor belt are located in the same plane and are perpendicular to each other; A trimming device, wherein the trimming device is respectively arranged on both sides of the first roller conveyor belt and the second roller conveyor belt; A receiving roller, the end of which is rotatably connected to the inner side of the reversing end. There are multiple receiving rollers that are spaced apart from each other, and the space between adjacent receiving rollers serves as an installation area. A mounting bracket, wherein the mounting bracket is arranged in the mounting area; A reversing wheel, the reversing wheel being rotatably connected to a mounting bracket, wherein the mounting brackets are multiple and spaced apart from each other; A lifting and tilting device, wherein the lifting and tilting device is located below the reversing wheel; The lifting and tilting device is used to drive the reversing wheel to lift and tilt toward the second roller conveyor belt, so as to guide the components transported to the receiving roller toward the second roller conveyor belt.

4. The trimming device for packaging a semi-transparent self-generating LED display according to claim 3, characterized in that: The lifting and tilting device includes a lifting mechanism and a tilting mechanism, and the tilting mechanism includes: A connecting seat, the connecting seat is fixed to the mounting bracket; A base, wherein a mounting groove is provided in the base, and guide openings are provided on both sides of the base that penetrate through and communicate with the mounting groove; A base, the base is fixed to the pedestal, and one end of the connecting seat is rotatably connected to the base; A lead screw, the lead screw being arranged in the mounting groove, and the end of the lead screw being rotatably connected to the inner side of the base; A guide seat is sleeved on the outer periphery of the lead screw and forms a threaded fit with the lead screw. Both sides of the guide seat are provided with guide portions extending toward and coupled to the guide port. A connecting rod, which is arranged on both sides of the base, with one end of the connecting rod being rotatably connected to the guide portion and the other end being rotatably connected to the connecting seat; A transmission gear, wherein the transmission gear is fixed to the outer periphery of the lead screw; A transmission rack is engaged with the transmission gear, and one end of the transmission rack extends downward as an extended end.

5. The trimming device for packaging a semi-transparent self-generating LED display according to claim 4, characterized in that: The lifting mechanism comprises: a first guide tube, the first guide tube being connected to the bottom of the base and extending downward, and the number of the first guide tubes being multiple; a second guide tube connected to the bottom of the base and extending downward, wherein the extending end extends into the second guide tube; A hydraulic cylinder, wherein the output ends of the hydraulic cylinder are respectively provided with a first push rod and a second push rod, wherein the first push rod and the second push rod are respectively opposite to the first guide tube and the second guide tube; a first buffer spring, one end of which is fixed in the first guide tube, and the other end of which is fixed to the first push rod; A second buffer spring, one end of the second buffer spring is fixed to the extending end, and the other end is fixed to the second push rod.

6. The trimming device for packaging a semi-transparent self-generating LED display according to claim 3, characterized in that: The trimming device comprises: Mounting rack; An edge grinding wheel, the edge grinding wheel is connected to the mounting frame for rotation in a vertical direction, the edge grinding wheel is in plurality and spaced apart from each other, and one end of the edge grinding wheel extends upward as a transmission end; A transmission wheel, the transmission wheel is fixed to the transmission end; A transmission belt, the transmission belt is sleeved on the transmission wheel and meshed with the transmission wheel; A drive motor is used to drive the multiple edge grinding wheels to rotate.

7. The edge trimming device for packaging a semi-transparent self-generating LED display according to claim 6, characterized in that: It also includes a guide wheel. The mounting frame is located on a side away from the edge grinding wheel and extends outward as a mounting end. The guide wheel is rotatably connected to the mounting end along the vertical direction. There are multiple guide wheels and they are arranged at intervals from each other.

8. The edge trimming device for packaging a semi-transparent self-generating LED display according to claim 5, characterized in that: It also includes a guide rod fixed in the vertical direction. The base is provided with a penetrating guide hole, which is opposite to the guide rod. The guide hole is used for the guide rod to pass through, and a sliding fit can be formed between the two.

9. The edge trimming device for packaging a semi-transparent self-generating LED display according to claim 7, characterized in that: It also includes a tensioner, which is rotatably connected to the mounting frame along a vertical direction and is used to tighten the transmission belt.

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