Packaging auxiliary device for LED display module

Abstract

This invention belongs to the field of LED packaging technology and discloses a packaging auxiliary device for LED display modules. The device includes a worktable, a transport component fixed to the side wall of the worktable, a clamping plate fixed to the top of the transport component, and a moving component fixed to the top of the worktable. Through the coordination of a U-shaped frame, rack, gear, disc, and pawl, automatic switching between dispensing and leveling is achieved. When the moving component dispenses adhesive downwards, the U-shaped frame moves downwards, driving the disc to rotate counterclockwise. At this time, the arc plate presses against the rotating rod, causing the pawl to disengage from the ratchet teeth, ensuring the substrate remains stationary during dispensing and guaranteeing dispensing accuracy. When the moving component moves upwards to reset after dispensing, the disc reverses, causing the pawl to engage with the ratchet teeth, automatically triggering a conical head to strike and vibrate. The entire process requires no additional sensors or independent drive source, featuring a compact structure and rapid response, achieving seamless integration of dispensing and leveling, significantly improving automation and operational efficiency.

Description

Technical Field

[0001] This invention belongs to the field of LED packaging technology, specifically a packaging auxiliary device for LED display modules. Background Technology

[0002] An LED display module is a unit that integrates multiple LED packaged devices arranged at a certain spacing with driving circuits, control components, etc., to form the smallest display unit capable of independently displaying images or text. It is the basic building block of an LED display screen. Multiple modules can be spliced ​​together to form a large-size display screen. The LED beads of general-purpose indoor and outdoor displays are usually P2 or larger. The packaging process mainly includes die bonding, wire bonding, dispensing, baking, punching, testing, tape and reel packaging, and mounting. Among them, the dispensing process is a key link that affects the optical effect and reliability of the display module. The uniformity of the adhesive after dispensing directly determines the light transmittance and protective performance of the finished product.

[0003] Existing technical document CN117282612A discloses an LED packaging dispensing device and method. The dispensing device includes a device body, a rotating wheel assembly, a dispensing head, and a driving device. The rotating wheel assembly is connected to the device body, and the dispensing head is connected to the rotating wheel assembly. The rotating wheel assembly includes multiple rotating wheel components arranged from the inside out and rotating in cooperation with each other. The dispensing head is located on the innermost rotating wheel component and rotates in cooperation with it. The number of dispensing heads is two or more. This application allows for the independent adjustment and rotation of the rotating wheel assembly and the dispensing head, enabling the adjustment of the needle distance and the direction of the needle connection line of the dispensing head. Therefore, it can accommodate the simultaneous dispensing of two chips at different positions and distances within a multi-chip COB / module light source, doubling the production capacity and solving the compatibility problem of irregular chip placement layouts. While the aforementioned patent achieves multi-station compatibility dispensing, it cannot effectively solve the problem of the adhesive not spreading quickly and evenly after dispensing. Existing technologies typically require an additional independent vibration platform or manual intervention for leveling, which not only increases equipment costs and floor space, but also makes it difficult to precisely match the vibration timing with the dispensing cycle. This can easily lead to premature vibration before the adhesive is completely dispensed, or vibration lag causing the adhesive to have already begun to solidify and become unscalable. In addition, the additional vibration source can easily interfere with the precise positioning of the dispensing head, affecting dispensing accuracy and resulting in a decrease in yield. Summary of the Invention

[0004] The purpose of this invention is to provide an LED display module packaging auxiliary device that automatically triggers the tapping vibration of a conical head, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a packaging auxiliary device for LED display modules, comprising a workbench, a transport component fixedly connected to the side wall of the workbench, a clamping plate fixedly connected to the top of the transport component, a moving component fixedly connected to the top of the workbench, a dispensing component fixedly connected to the side wall of the moving component, a plurality of dispensing heads fixedly connected to the bottom of the dispensing component, and a glue tank fixedly connected to the side wall, further comprising: A vibration assist mechanism, which is located on the transport assembly; An automatic switching mechanism, which is connected to a vibration-assisted mechanism; The vibration assist mechanism includes a pair of telescopic rods that slide through the top of the transport component. The top of the transport component has a pair of sliding grooves. The side walls of the telescopic rods are elastically slidable in the sliding grooves through fixed plates. A crossbar is fixed to the top of each telescopic rod.

[0006] Preferably, the vibration assist mechanism further includes a conical head fixed to one side of the crossbar, the conical head slidingly passing through the edge of the card plate, a rotating rod rotatably connected to the other side of the crossbar, and a pair of fan-shaped grooves opened on the top of the worktable near the transport component, the rotating rods being movably connected within the fan-shaped grooves.

[0007] Preferably, the inner cavity of the transport component is slidably connected to a movable frame, the inner cavity of the movable frame is slidably connected to an inverted plate, and the inner cavity of the inverted plate is elastically slidably connected to a push plate.

[0008] Preferably, a cylinder is fixedly connected to the bottom of the movable frame via a bracket, and the output end of the cylinder is fixedly connected to the bottom of the push plate.

[0009] Preferably, the automatic switching mechanism includes a slotted plate fixed to the bottom of the moving component, and a U-shaped frame is slidably connected to the inner cavity of the slotted plate.

[0010] Preferably, both sides of the U-shaped frame are slidably connected to the inner cavity of the workbench, and a pair of racks are fixedly connected to the lower side of the U-shaped frame.

[0011] Preferably, each pair of racks is meshed with a gear, and the pair of gears are fixedly connected to a rotating shaft. The outer wall of the rotating shaft is rotatably connected to the inner cavity of the worktable. A pair of discs are fixedly connected to both sides of the rotating shaft. Each disc has several ratchet teeth on its sidewall and an arc plate is fixedly connected to its outer wall.

[0012] Preferably, the inner cavity of the workbench is provided with arc-shaped grooves on both sides, the arc plates are slidably connected in the arc-shaped grooves, and the ratchet teeth are engaged with pawls.

[0013] Preferably, a pair of pawls are provided, and a movable plate is rotatably connected to the side wall of the pawl. The side wall of the pawl is rotatably connected to the end of the rotating rod. The concave part of the pawl is elastically connected to the movable plate. The outer wall of the movable plate is elastically connected to the inner wall of the fan-shaped groove.

[0014] Preferably, both sides of the workbench are provided with arc-shaped sliding grooves, which are connected to the fan-shaped sliding grooves. Each pair of movable plates is fixedly connected to a sliding column on its outer side, and the sliding column is slidably connected in the arc-shaped sliding groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention achieves automatic switching between dispensing and vibratory leveling by using a combination of structures such as a U-shaped frame, rack, gear, disc, and pawl. When the moving component dispenses adhesive downwards, the U-shaped frame moves down, driving the disc to rotate counterclockwise. At this time, the arc plate presses against the rotating rod, causing the pawl to disengage from the ratchet teeth, ensuring that the substrate remains stationary during dispensing and guaranteeing dispensing accuracy. When the moving component moves up to reset after dispensing, the disc reverses, causing the pawl to engage with the ratchet teeth, automatically triggering the conical head to strike and vibrate. The entire process requires no additional sensors or independent drive source, has a compact structure, and responds quickly, achieving seamless integration of dispensing and vibratory leveling, significantly improving automation and work efficiency.

[0016] This invention utilizes a combination of a crossbar, a telescopic bar, a conical head, a rotating bar, and a fixing plate. A pawl reciprocates to drive the conical head to rapidly strike the inverted plate, precisely transmitting vibration to the chip substrate. This allows the adhesive, which may not have fully spread after application, to quickly and evenly spread, effectively preventing air bubbles and unevenness. Simultaneously, the elasticity of the fixing plate causes the telescopic bar and conical head to automatically reset, preparing for the next strike. This ensures consistent and stable force and frequency of each vibration, significantly improving packaging quality.

[0017] This invention, through the coordinated use of structures such as cylinders, push plates, inverted plates, and clamping plates, maintains stable pressure on the chip substrate throughout the vibration process, preventing chip displacement or detachment due to vibration. At the same time, the dual positioning structure of the inverted plate and clamping plate ensures the positional accuracy of the substrate throughout the transportation, dispensing, and vibration processes, guaranteeing both the flattening effect of the adhesive and preventing chip displacement, thus significantly improving production yield and product reliability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the structural fit between the slotted plate and the U-shaped frame of the present invention; Figure 3 This is a schematic diagram showing the structural fit between the disk and the worktable of the present invention; Figure 4 For the present invention Figure 3A magnified view of the structure at point A in the middle; Figure 5 For the present invention Figure 3 A magnified schematic diagram of the structure at point B in the middle; Figure 6 This is a schematic diagram showing the structural fit between the gear and the shaft of the present invention; Figure 7 This is a schematic diagram showing the structural fit between the arc plate and the disk of the present invention; Figure 8 This is a schematic diagram showing the structural fit between the movable plate and the pawl of the present invention; Figure 9 This is a schematic diagram showing the structural fit between the pawl and the rotating rod of the present invention.

[0019] In the picture: 100. Workbench; 200. Transport assembly; 300. Pallet; 400. Moving assembly; 500. Glue can; 600. Glue dispensing head; 700. Vibration auxiliary mechanism; 710. Crossbar; 720. Conical head; 730. Moving frame; 740. Inverted plate; 750. Push plate; 760. Cylinder; 770. Telescopic rod; 780. Fixed plate; 790. Rotating rod; 7100. Fan-shaped slide; 800. Automatic switching mechanism; 810. Hole and slot plate; 820. U-shaped frame; 830. Disc; 840. Arc groove; 850. Arc plate; 860. Movable plate; 870. Sliding column; 880. Pawl; 890. Ratchet; 8100. Arc slide; 8110. Gear; 8120. Rotating shaft; 8130. Rack. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figures 1 to 9 As shown, the present invention provides an LED display module packaging auxiliary device, including a workbench 100, a transport component 200 fixedly connected to the side wall of the workbench 100, a clamping plate 300 fixedly connected to the top of the transport component 200, a moving component 400 fixedly connected to the top of the workbench 100, a dispensing component fixedly connected to the side wall of the moving component 400, a plurality of dispensing heads 600 fixedly connected to the bottom of the dispensing component, and a glue tank 500 fixedly connected to the side wall of the dispensing component, and further including: Vibration auxiliary mechanism 700, which is located on transport assembly 200; Automatic switching mechanism 800 is connected to vibration auxiliary mechanism 700; The vibration assist mechanism 700 includes a pair of telescopic rods 770 that slide through the top of the transport component 200. The top of the transport component 200 is provided with a pair of sliding grooves. The side walls of the telescopic rods 770 are all elastically slidable in the sliding grooves through the fixing plate 780. The top of the telescopic rods 770 is fixedly connected to a crossbar 710.

[0022] The above scheme is adopted: the transport component 200 mainly consists of a transport chain, rotating wheels, and a grooved plate. The transport chain drives the moving frame 730 to move horizontally, thereby transporting the chip on its top. The moving component 400 mainly consists of a horizontal drive, a vertical drive, and a carriage. In use, the horizontal drive moves the dispensing component toward the chip position, and then the vertical drive drives the carriage to move downward, so that the dispensing head 600 approaches the chip surface to dispense glue. The various structures cooperate with each other, so that as the dispensing component moves from front to back, the dispensing head 600 performs dispensing operations up and down until the entire panel is dispensed. The workbench 100 serves as the basic support, with the transport component 200 fixed to its side wall and the moving component 400 on top working together to ensure stable transport and precise positioning of the module. The pallet 300 connects to the transport component 200, providing support for the chip substrate, while the moving component 400 carries the dispensing assembly, ensuring the dispensing head 600 can accurately complete the dispensing operation. The vibration assist mechanism 700 works in conjunction with the transport component 200, located on it and connected to the vibration system via the automatic switching mechanism 800. The vibration assist mechanism 700 generates the necessary vibration effect through the sliding of the telescopic rods 770 within the chute. These telescopic rods 770 are elastically connected to the fixed plate 780, allowing free movement within the chute, and are fixed to a crossbar 710 at the top. The crossbar 710 drives the vibration of the entire system, thereby achieving uniform processing and air bubble elimination of the dispensed module. The coordinated action of the entire system not only ensures dispensing accuracy but also ensures uniform glue distribution through vibration assistance, improving packaging quality. The precise collaboration between the components makes the entire packaging process efficient and stable, avoiding problems such as substrate displacement or uneven adhesive application.

[0023] like Figures 3 to 5 , Figure 8As shown, the vibration auxiliary mechanism 700 also includes a conical head 720 fixed to one side of the crossbar 710. The conical head 720 slides through the edge of the clamping plate 300. A rotating rod 790 is rotatably connected to the other side of the crossbar 710. A pair of fan-shaped slide grooves 7100 are opened on the top of the worktable 100 near the transport component 200. The rotating rod 790 is movably connected to the fan-shaped slide grooves 7100. A movable frame 730 is slidably connected to the inner cavity of the transport component 200. An inverted plate 740 is slidably connected to the inner cavity of the movable frame 730. A push plate 750 is elastically slidably connected to the inner cavity of the inverted plate 740. A cylinder 760 is fixed to the bottom of the movable frame 730 through a bracket. The output end of the cylinder 760 is fixed to the bottom of the push plate 750.

[0024] The above solution involves precisely fixing the LED display module substrate to be packaged onto the moving frame 730 before dispensing. A stable connection is formed between the substrate and the moving frame 730 through the cooperation of the inverted plate 740, ensuring accurate positioning of the substrate throughout the entire process. The key to this stage is positioning accuracy; the inverted plate 740 effectively prevents substrate displacement during transport. Next, the transport assembly 200 is activated, precisely conveying the moving frame 730 along the transport channel directly below the pallet 300. At this point, the moving assembly 400 begins operation, using both horizontal and vertical drives to precisely position the dispensing assembly. The dispensing head 600 moves precisely toward the chip on the substrate and begins the dispensing operation. The core of this step is precisely controlling the movement path of the dispensing head 600 to ensure uniform application of the adhesive. After each dispensing operation, once the moving assembly 400 has completed dispensing one row of adhesive, the system automatically resets. During this process, the moving component 400 rises, causing the U-shaped frame 820 and rack 8130 to move upwards synchronously. The gear 8110 begins to rotate in the opposite direction, and the disk 830 rotates in the opposite direction. As the pawl 880 and ratchet 890 engage again, the pawl 880 is driven to reciprocate and retract into the movable plate 860. At this time, the rotating rod 790 pushes the crossbar 710 and telescopic rod 770 downwards through reciprocating motion, overcoming the elasticity on the fixed plate 780, and quickly extends the conical head 720. The conical head 720 strikes the edge of the inverted plate 740, generating instantaneous vibration. This vibration is transmitted through the inverted plate 740 to the chip substrate on the moving frame 730, effectively spreading the glue evenly after dispensing, eliminating possible air bubbles or unevenness, and ensuring the uniformity and stability of the glue layer. Vibration treatment not only improves the leveling effect of the glue but also greatly improves the quality of encapsulation and avoids common defects. To ensure the substrate does not shift due to vibration during dispensing, the system incorporates an adjustable cylinder 760 to drive the lifting mechanism of the pusher plate 750. By adjusting the clamping force of the inverted plate 740 on the chip substrate, the system can precisely control the substrate's positioning during dispensing, preventing misalignment. This not only ensures dispensing accuracy but also prevents any deformation or displacement of the chip substrate during vibration, significantly improving packaging quality and production efficiency.

[0025] like Figure 2 , Figures 5 to 9As shown, the automatic switching mechanism 800 includes a slotted plate 810 fixed to the bottom of the moving component 400. A U-shaped frame 820 is slidably connected to the inner cavity of the slotted plate 810. Both sides of the U-shaped frame 820 are slidably connected to the inner cavity of the worktable 100, and a pair of racks 8130 are fixedly connected to the lower side of the U-shaped frame 820. Each pair of racks 8130 meshes with a gear 8110. The pair of gears 8110 are jointly fixed to a rotating shaft 8120. The outer wall of the rotating shaft 8120 is rotatably connected to the inner cavity of the worktable 100. A pair of discs 830 are fixedly connected to both sides of the rotating shaft 8120. Each disc 830 has several ratchet teeth 890 on its sidewall. An arc plate 850 is fixedly connected to the outer wall of each disc 830. The inner cavity of the worktable 100... Both sides of the worktable 100 are provided with arc-shaped grooves 840, and arc plates 850 are slidably connected within the arc-shaped grooves 840. A pawl 880 is engaged within a ratchet 890. A pair of pawls 880 are provided, and a movable plate 860 is rotatably connected to the side wall of the pawl 880. The side wall of the pawl 880 is rotatably connected to the end of the rotating rod 790. The concave part of the pawl 880 is elastically connected to the movable plate 860. The outer wall of the movable plate 860 is elastically connected to the inner wall of the fan-shaped slide groove 7100. Both sides of the worktable 100 are provided with arc-shaped slide grooves 8100, and the arc-shaped slide grooves 8100 and the fan-shaped slide grooves 7100 are interconnected. A sliding column 870 is fixedly connected to the outer side of a pair of movable plates 860, and the sliding column 870 is slidably connected within the arc-shaped slide groove 8100.

[0026] The above solution is adopted as follows: During the lateral movement of the dispensing assembly, the U-shaped frame 820 slides within the slot plate 810, ensuring the smooth movement of the moving assembly 400 while avoiding interference from other components. The U-shaped frame 820 moves synchronously with the rack 8130 and gear 8110. When the moving assembly 400 moves vertically downwards for dispensing, the U-shaped frame 820 moves downwards and drives the rack 8130 to rotate, thereby driving the gear 8110 to rotate the rotating shaft 8120 and the discs 830 on both sides. The rotation of the discs 830 further drives the arc plate 850 to slide along the arc groove 840. The arc plate 850 presses the rotating rod 790 to slide along the fan-shaped slide groove 7100, pushing the pawl 880 and the movable plate 860 to move outwards. At this time, the pawl 880 disengages from the ratchet 890, ensuring that the rotating rod 790 always remains in a deflected state. The ratchet 890 and pawl 880 on the sidewall of the disk 830 maintain sliding contact, preventing the vibration auxiliary mechanism 700 from operating and thus ensuring the substrate remains stationary during the dispensing process, guaranteeing dispensing accuracy and consistency. After vibration, the elastic force of the fixing plate 780 causes the telescopic rod 770, crossbar 710, and pawl 880 to automatically reset, with the pawl 880 re-engaging in the next ratchet 890 of the disk 830. At this point, the device is ready for the next dispensing operation, ensuring the continuity and stability of the encapsulation process. Each time the dispensing head completes a dispensing operation and lifts up, the device automatically triggers a vibration process, achieving seamless integration of dispensing and leveling.

[0027] Working principle and usage process of this invention: First, the LED display module substrate to be packaged is fixed on the moving frame 730, and precisely positioned with the cooperation of the inverted plate 740. The transport assembly 200 is started, and the moving frame 730 is transported along the transport channel to directly below the pallet 300. At this time, the moving assembly 400 starts to work, driving the dispensing assembly to move laterally towards the pallet 300, and then driving the dispensing head 600 to move downward through the vertical drive, and performing dispensing operation on the chips on the substrate through the dispensing head 600. Secondly, when the moving component 400 drives the dispensing component to move laterally, the U-shaped frame 820 slides within the slotted plate 810, not obstructing the movement of the moving component 400. As the moving component 400 moves downwards to dispense adhesive, the slotted plate 810 at the bottom of the moving component 400 simultaneously pushes the U-shaped frame 820 downwards. When the U-shaped frame 820 moves downwards, it drives the gear 8110 to rotate via the rack 8130 fixed to its lower side. The gear 8110 then drives the rotating shaft 8120 and the discs 830 on both sides to rotate synchronously. (Reference) Figure 3 At this time, the slotted plate 810 moves downward, which can drive the disc 830 to rotate counterclockwise. The arc plate 850 on its outer wall slides along the arc groove 840. The arc plate 850 can squeeze the rotating rod 790 to slide along the fan-shaped slide groove 7100. Therefore, the rotating rod 790 pushes the pawl 880 and the movable plate 860 to move away from the disc 830. With the sliding column 870 sliding in the arc slide groove 8100, the movement trajectory can be ensured. At this time, the pawl 880 disengages from the ratchet 890. Therefore, the rotating rod 790 is always squeezed by the arc plate 850 and kept in a deflected state. At this time, the ratchet 890 opened on the side wall of the disc 830 and the pawl 880 are in a relative sliding state. Since the pawl 880 only slides along the surface of the ratchet 890 at this time, it will not drive the vibration auxiliary mechanism 700 to move, ensuring that the substrate remains stationary during the dispensing process and ensuring dispensing accuracy. Secondly, after the moving component 400 has applied a row of adhesive, during its upward movement, the moving component 400 rises and resets, causing the U-shaped frame 820 and rack 8130 to move upwards synchronously, driving the gear 8110 to rotate in the opposite direction. At this time, the disc 830 reverses, the ratchet 890 engages with the pawl 880, and the pawl 880 is driven by the ratchet 890 to reciprocate and retract into the movable plate 860, thereby pushing the rotating rod 790 to slide downwards and reset. When the rotating rod 790 moves, it causes the crossbar 710 and telescopic rod 770 to slide downwards against the elasticity of the fixed plate 780, causing the conical head 720 to quickly extend and strike the edge of the inverted plate 740, generating instantaneous vibration. This vibration is transmitted through the inverted plate 740 to the chip substrate on the moving frame 730, thereby quickly leveling the adhesive that has not been completely flattened after application, achieving uniform spreading of the adhesive, and avoiding bubbles or unevenness. Finally, after the conical head 720 completes the tapping, the elastic force of the fixed plate 780 causes the telescopic rod 770, crossbar 710, and pawl 880 to automatically reset. The pawl 880 then re-engages into the next ratchet 890 of the disc 830, preparing for the next dispensing cycle. This process repeats, automatically triggering a tapping vibration each time the dispensing head completes a dispensing cycle and lifts up, achieving continuous automated operation of dispensing and leveling. Simultaneously, the cylinder 760 drives the push plate 750 to rise and fall, adjusting the clamping force of the inverted plate 740 on the chip substrate. This ensures that the chip substrate is completely engaged with the clamping plate 300 during vibration without displacement, guaranteeing both the leveling effect of the adhesive and preventing chip misalignment, significantly improving packaging quality and production efficiency.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A packaging auxiliary device for LED display modules, comprising a workbench (100), a transport component (200) fixedly connected to the side wall of the workbench (100), a clamping plate (300) fixedly connected to the top of the transport component (200), a moving component (400) fixedly connected to the top of the workbench (100), a dispensing component fixedly connected to the side wall of the moving component (400), a plurality of dispensing heads (600) fixedly connected to the bottom of the dispensing component, and a glue tank (500) fixedly connected to the side wall, characterized in that: Also includes: A vibration assist mechanism (700) is located on the transport assembly (200); An automatic switching mechanism (800) is connected to a vibration assist mechanism (700); The vibration assist mechanism (700) includes a pair of telescopic rods (770) that slide through the top of the transport assembly (200). The top of the transport assembly (200) has a pair of sliding grooves. The side walls of the telescopic rods (770) are elastically slidable in the sliding grooves through the fixing plate (780). The top of the telescopic rods (770) is fixedly connected to a crossbar (710).

2. The packaging auxiliary device for LED display modules according to claim 1, characterized in that: The vibration assist mechanism (700) also includes a conical head (720) fixed to one side of the crossbar (710). The conical head (720) slides through the edge of the clamping plate (300). A rotating rod (790) is rotatably connected to the other side of the crossbar (710). A pair of fan-shaped grooves (7100) are provided on the top of the workbench (100) near the transport component (200). The rotating rod (790) is movably connected in the fan-shaped grooves (7100).

3. The packaging auxiliary device for LED display modules according to claim 2, characterized in that: The inner cavity of the transport component (200) is slidably connected to a movable frame (730), the inner cavity of the movable frame (730) is slidably connected to an inverted plate (740), and the inner cavity of the inverted plate (740) is elastically slidably connected to a push plate (750).

4. The packaging auxiliary device for LED display modules according to claim 3, characterized in that: A cylinder (760) is fixedly connected to the bottom of the movable frame (730) via a bracket, and the output end of the cylinder (760) is fixedly connected to the bottom of the push plate (750).

5. The packaging auxiliary device for LED display modules according to claim 2, characterized in that: The automatic switching mechanism (800) includes a slotted plate (810) fixed to the bottom of the moving component (400), and a U-shaped frame (820) is slidably connected to the inner cavity of the slotted plate (810).

6. The packaging auxiliary device for LED display modules according to claim 5, characterized in that: Both sides of the U-shaped frame (820) are slidably connected to the inner cavity of the workbench (100), and a pair of racks (8130) are fixedly connected to the lower side of the U-shaped frame (820).

7. The packaging auxiliary device for LED display modules according to claim 6, characterized in that: Each pair of racks (8130) is meshed with a gear (8110), and the pair of gears (8110) are fixedly connected to a rotating shaft (8120). The outer wall of the rotating shaft (8120) is rotatably connected to the inner cavity of the worktable (100). A pair of discs (830) are fixedly connected to both sides of the rotating shaft (8120). The side walls of the discs (830) are provided with several ratchet teeth (890), and the outer walls of the discs (830) are fixedly connected with arc plates (850).

8. The packaging auxiliary device for LED display modules according to claim 7, characterized in that: The inner cavity of the workbench (100) is provided with arc-shaped grooves (840) on both sides, and the arc plates (850) are slidably connected in the arc-shaped grooves (840). The ratchet (890) is fitted with a pawl (880).

9. The packaging auxiliary device for LED display modules according to claim 8, characterized in that: The pawls (880) are provided in pairs, and the sidewalls of the pawls (880) are rotatably connected to the movable plate (860). The sidewalls of the pawls (880) are rotatably connected to the end of the rotating rod (790). The concave part of the pawls (880) is elastically connected to the movable plate (860). The outer wall of the movable plate (860) is elastically connected to the inner wall of the fan-shaped groove (7100).

10. The packaging auxiliary device for LED display modules according to claim 9, characterized in that: Both sides of the workbench (100) are provided with arc slide grooves (8100), and the arc slide grooves (8100) are connected to the fan-shaped slide grooves (7100). A pair of movable plates (860) are fixedly connected to the outer side with sliding columns (870), and the sliding columns (870) are slidably connected in the arc slide grooves (8100).

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