An ultraviolet curing device for display screen components

Abstract

The utility model relates to the field of display screen component solidification, especially display screen component ultraviolet curing device, including the shell, the upper end of shell is installed with the heat abstractor, the inside fixed connection of shell has the filter plate, the inside installation of shell has the mobile mechanism of driving solidification device movement, through mobile mechanism drive two groups of brush and ultraviolet light box synchronous movement, two groups of brush are located lamp box both sides respectively, form the coherent flow of front brush pre -cleaning, lamp box solidification, rear brush residual glue cleaning, promote residual glue cleaning rate.

Description

Technical Field

[0001] This utility model relates to the field of curing display screen components, and in particular to an ultraviolet curing device for display screen components. Background Technology

[0002] In the manufacturing process of display components, ultraviolet curing is a key step in the encapsulation process. It activates the photoinitiator of UV adhesive by ultraviolet irradiation, which promotes the rapid cross-linking and curing of the adhesive layer, directly affecting the encapsulation sealing, optical performance and service life of the components.

[0003] Patent CN202420911892.X discloses a device for preventing yellowing of the polarizer in a liquid crystal display (LCD) screen by UV curing to compensate for COF gaps. The device includes a first UV curing unit and a second UV curing unit arranged side-by-side. The first UV curing unit includes a first base and a first support platform mounted on the first base. A first support column is mounted on the base, and a first slide rail is mounted on the first support column. A first UV curing component and a dispensing mechanism are mounted on the first slide rail. In this embodiment, the first support platform has several first adsorption holes. Several first retractable positioning blocks are arranged around the periphery of the first support platform. This device for preventing yellowing of the polarizer in an LCD screen by UV curing to compensate for COF gaps has the effect of simultaneously curing and cooling, preventing the polarizer on the LCD screen surface from yellowing due to excessive temperature, and improving the image quality.

[0004] However, the above technical solutions still have the following shortcomings in practical applications: However, the device does not integrate a surface cleaning structure. After the components are pre-treated at the cleaning station, they need to be transferred to the curing station via a transfer mechanism. During the transfer process, they are very easy to re-adsorb dust and impurities from the air. Moreover, the residual glue residue after curing requires an additional manual cleaning process, which not only leads to low production efficiency, but may also scratch the surface of the components due to manual operation. Therefore, this utility model proposes an ultraviolet curing device for display screen components. Utility Model Content

[0005] The main purpose of this utility model is to provide an ultraviolet curing device for display screen components, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A UV curing device for display screen components includes a housing, a heat dissipation mechanism installed at the upper end of the housing, a filter plate fixedly connected to the inner side of the housing, and a moving mechanism for driving the curing device to move installed on the inner side of the housing.

[0007] Preferably, the moving mechanism includes two mounting plates fixedly connected to the housing. Each of the two mounting plates has an arc-shaped groove on its opposite side. An arc-shaped toothed plate is fixedly connected to the inner side of the groove of each mounting plate, and a first gear is meshed with the outer side of each arc-shaped toothed plate.

[0008] Preferably, the outer sides of the two first gears are rotatably connected to a first sliding frame. The outer side of the first sliding frame has two symmetrical arc-shaped grooves. The lower end of the first sliding frame is slidably connected to the mounting plate. The inner side of each groove of the first sliding frame is slidably connected to a T-shaped slider. The inner side of the T-shaped slider is rotatably connected to a first rotating shaft. The outer sides of the two first rotating shafts are respectively fixedly connected to the two first gears. The ends of the two first rotating shafts that are close to each other are slidably connected to the grooves of the mounting plate.

[0009] Preferably, L-shaped plates are rotatably connected to the ends of the two first rotating shafts that are far apart, and T-shaped sliders are fixedly connected to the sides of the two L-shaped plates that are close to each other. A motor is installed on the outer side of one of the two L-shaped plates, and an ultraviolet lamp box is installed at the lower end of both L-shaped plates.

[0010] Preferably, a rack is fixedly connected to the lower end of the mounting plate, and two symmetrical second gears are meshed on the outer side of the rack. A second sliding frame is rotatably connected to the outer side of the two second gears. Two symmetrical L-shaped sliders are fixedly connected to the upper end of the second sliding frame. The upper ends of the two L-shaped sliders are fixedly connected to the first sliding frame, and the side of the two L-shaped sliders that are close to each other is slidably connected to the mounting plate.

[0011] Preferably, a second shaft is fixedly connected to the inner side of each of the two second gears, and a first sprocket is fixedly connected to both the front and rear ends of the second shaft. A chain is meshed with the outer side of the first sprocket, and a second sprocket is meshed with the inner side of the chain. A brush is fixedly connected to the inner side of the second sprocket, and a sensor is provided on the inner side of the brush.

[0012] Compared with the prior art, the beneficial effects of this utility model are: The device employs a moving mechanism to synchronously move two sets of brushes and a UV lamp box. The two sets of brushes are positioned on either side of the lamp box, forming a continuous process of pre-cleaning with the front brushes, curing in the lamp box, and cleaning residual adhesive with the rear brushes. Simultaneously, cleaned impurities fall into a collection box through a filter plate, preventing accumulation or dispersion of impurities within the casing, eliminating the risk of secondary contamination, and improving the residual adhesive cleaning rate. Built-in sensors in the brushes continuously identify differences in adhesive layer thickness. After the signal is fed back to the control system, it drives the first sliding frame to continue moving, causing the T-shaped slider to slide down the arc-shaped groove, bringing the UV lamp box closer to the thicker adhesive layer area for secondary curing. This ensures uniform cross-linking density of the adhesive layer and achieves dynamic adaptation curing of the adhesive layer thickness. The first sliding frame moves along the arc-shaped toothed plate trajectory of the mounting plate, enabling the lamp box to achieve full coverage and edge curing of the components. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of an ultraviolet curing device for display screen components according to this utility model; Figure 2 This is a cross-sectional schematic diagram of the overall structure of an ultraviolet curing device for display screen components according to this utility model; Figure 3 This is a schematic diagram of the overall structure of the moving mechanism of the ultraviolet curing device for display screen components according to this utility model; Figure 4 This is a cross-sectional schematic diagram of the overall structure of the moving mechanism of the ultraviolet curing device for display screen components according to this utility model; Figure 5 This utility model relates to an ultraviolet curing device for display screen components. Figure 4 Enlarged diagram of part A in the middle; Figure 6 This is a cross-sectional schematic diagram of the moving mechanism of an ultraviolet curing device for display screen components according to this utility model.

[0015] In the diagram: 1. Housing; 2. Heat dissipation mechanism; 3. Filter plate; 4. Moving mechanism; 41. Mounting plate; 42. Arc-shaped toothed plate; 43. First gear; 44. First sliding frame; 45. T-shaped slider; 46. First rotating shaft; 47. L-shaped plate; 48. Motor; 49. Ultraviolet lamp box; 410. Rack; 411. Second gear; 412. Second sliding frame; 413. L-shaped slider; 414. Second rotating shaft; 415. First sprocket; 416. Chain; 417. Second sprocket; 418. Brush. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] This utility model provides, for example Figure 1 - Figure 6 The ultraviolet curing device for display screen components shown includes a housing 1, a heat dissipation mechanism 2 installed on the upper end of the housing 1, a filter plate 3 fixedly connected to the inner side of the housing 1, and a moving mechanism 4 for driving the curing device to move installed on the inner side of the housing 1.

[0018] In this embodiment, the moving mechanism 4 includes two mounting plates 41 fixedly connected to the housing 1. Each of the two mounting plates 41 has an arc-shaped groove on the side away from each other. An arc-shaped toothed plate 42 is fixedly connected to the inner side of the groove of the mounting plate 41, and a first gear 43 is meshed with the outer side of the arc-shaped toothed plate 42.

[0019] Specifically, the mounting plate 41 serves as the support and track foundation for the entire moving mechanism 4. The arc-shaped groove on it defines the movement trajectory of the ultraviolet lamp box 49, and the arc-shaped toothed plate 42 serves as a fixed transmission element, meshing with the first gear 43 to convert the rotational motion of the motor 48 into the walking motion of the first gear 43 along the arc-shaped trajectory, thereby providing the core driving force for the entire device.

[0020] In this embodiment, the outer sides of the two first gears 43 are rotatably connected to a first sliding frame 44. The outer side of the first sliding frame 44 has two symmetrical arc-shaped sliding grooves. The lower end of the first sliding frame 44 is slidably connected to the mounting plate 41. T-shaped sliders 45 are slidably connected to the inner side of the sliding grooves of the first sliding frame 44. The inner side of the T-shaped sliders 45 is rotatably connected to a first rotating shaft 46. The outer sides of the two first rotating shafts 46 are fixedly connected to the two first gears 43 respectively. The two ends of the two first rotating shafts 46 that are close to each other are slidably connected to the sliding grooves of the mounting plate 41 respectively.

[0021] Specifically, the first sliding frame 44 is synchronously driven by two first gears 43, which can ensure the smoothness of the movement; the T-shaped slider 45 cooperates with the arc-shaped slide groove on the first sliding frame 44 to form a height adjustment mechanism. When the first gear 43 runs to the lower end of the arc-shaped toothed plate 42, the T-shaped slider 45 will slide along the arc-shaped slide groove on the first sliding frame 44, thereby driving the connected components to produce vertical displacement, realizing the lifting and lowering of the ultraviolet lamp box 49.

[0022] In this embodiment, L-shaped plates 47 are rotatably connected to the ends of the two first rotating shafts 46 that are far apart. The sides of the two L-shaped plates 47 that are close to each other are fixedly connected to T-shaped sliders 45. A motor 48 is installed on the outer side of one of the two L-shaped plates 47. An ultraviolet lamp box 49 is installed at the lower end of both L-shaped plates 47.

[0023] Specifically, one side of the L-shaped plate 47 is fixed to the T-shaped slider 45, so it can move horizontally and vertically together with the T-shaped slider 45; the other side is equipped with an ultraviolet lamp box 49, so that the movement of the moving mechanism 4 is accurately transmitted to the lamp box. The motor 48 is installed on one of the L-shaped plates 47, and its output power is directly transmitted to the first gear 43 through the first rotating shaft 46. This integrated design structure is compact.

[0024] In this embodiment, a rack 410 is fixedly connected to the lower end of the mounting plate 41. Two symmetrical second gears 411 are meshed on the outer side of the rack 410. A second sliding frame 412 is rotatably connected to the outer side of the two second gears 411. Two symmetrical L-shaped sliders 413 are fixedly connected to the upper end of the second sliding frame 412. The upper ends of the two L-shaped sliders 413 are fixedly connected to the first sliding frame 44. The side of the two L-shaped sliders 413 that is close to each other is slidably connected to the mounting plate 41.

[0025] Specifically, the second sliding frame 412 is fixed to the first sliding frame 44 via an L-shaped slider 413, and the rack 410 fixed to the lower end of the mounting plate 41 meshes with the second gear 411. When the second sliding frame 412 moves horizontally with the first sliding frame 44, the second gear 411 rolls on the rack 410 and rotates, providing a power source for the subsequent rotation of the brush 418.

[0026] In this embodiment, a second rotating shaft 414 is fixedly connected to the inner side of each of the two second gears 411. A first sprocket 415 is fixedly connected to both the front and rear ends of the second rotating shaft 414. A chain 416 is meshed with the outer side of the first sprocket 415. A second sprocket 417 is meshed with the inner side of the chain 416. A brush 418 is fixedly connected to the inner side of the second sprocket 417. A sensor is provided on the inner side of the brush 418.

[0027] Specifically, the second rotating shaft 414 transmits the rotational power of the second gear 411 to the first sprockets 415 at both ends, and then drives the second sprocket 417 to rotate synchronously through the chain 416. This causes the brush 418 fixed inside the second sprocket 417 to rotate. This allows the brush 418 to rotate at high speed while performing scanning cleaning as the whole device moves, greatly improving cleaning efficiency. The sensor integrated inside the brush 418 is used to detect the thickness of the adhesive layer on the surface of the components in real time during the cleaning process, providing data feedback for subsequent precise curing.

[0028] Working principle: When using this equipment, place the components to be cured on the upper end of the filter plate 3, close the housing 1 to keep it in a sealed state; simultaneously start the motor 48, whose output shaft drives one of the first rotating shafts 46 to rotate, the first rotating shaft 46 drives the first gear 43 to rotate, the first gear 43 meshes with the arc-shaped toothed plate 42, thereby driving the first sliding frame 44 to move along the outer track of the mounting plate 41; the first sliding frame 44 drives the two first gears 43 to rotate synchronously, making its movement smoother; at the same time, the first sliding frame... 44 drives the second sliding frame 412 to move via the L-shaped slider 413. The second gear 411 meshes with the rack 410, so that the second gear 411 rotates when the second sliding frame 412 moves. The second gear 411 drives the second rotating shaft 414 to rotate. The second rotating shaft 414 drives the chain 416 to rotate via the first sprocket 415. The chain 416 drives the second sprocket 417 and the brush 418 to rotate, so that the brush 418 rotates while following the movement of the first sliding frame 44, thereby cleaning the surface of the component. Simultaneously, the first sliding frame 44 drives the L-shaped plate 47 to move via the first rotating shaft 46, and the L-shaped plate 47 drives the ultraviolet lamp box 49 to move. The ultraviolet lamp box 49 is activated to cure the components on the upper end of the filter plate 3 with ultraviolet light. Since the two sets of brushes 418 are located on both sides of the ultraviolet lamp box 49, after one set of brushes 418 has finished cleaning, the first sliding frame 44 continues to drive the lamp box to move until the ultraviolet lamp box 49 moves above the components to cure them. After curing, the equipment continues to move, and the other set of brushes 418 cleans the surface of the cured components. The cleaned impurities fall into the collection box at the lower end of the casing 1 through the filter plate 3. Meanwhile, the sensor inside the brush 418 identifies the difference in adhesive layer thickness on the surface of the component during the movement and feeds the signal back to the control system. When the sensor detects that the adhesive layer is thicker in a certain place, the control system continues to drive the motor 48 to rotate, so that the first sliding frame 44 continues to move along the outside of the mounting plate 41 until the first gear 43 moves to the lower end of the arc-shaped toothed plate 42. At this time, the T-shaped slider 45 moves downward along the arc-shaped groove on the inner side of the first sliding frame 44. The T-shaped slider 45 drives the L-shaped plate 47 and the ultraviolet lamp box 49 to move downward, so that the distance between the ultraviolet lamp box 49 and the surface of the component is shortened to a close state for secondary curing. At the same time, the heat dissipation mechanism 2 is activated to dissipate heat from the ultraviolet lamp box 49 and other heat-generating components inside the housing 1.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A UV curing apparatus for display screen components, comprising a housing (1), characterized in that: A heat dissipation mechanism (2) is installed at the upper end of the housing (1), a filter plate (3) is fixedly connected to the inner side of the housing (1), and a moving mechanism (4) that drives the curing device to move is installed on the inner side of the housing (1). The moving mechanism (4) includes two mounting plates (41) fixedly connected to the housing (1). The two mounting plates (41) are provided with arc-shaped grooves on the opposite sides. Arc-shaped toothed plates (42) are fixedly connected to the inner side of the grooves of the mounting plates (41). The outer side of the arc-shaped toothed plates (42) is meshed with a first gear (43). The lower end of the mounting plate (41) is fixedly connected to a rack (410). Two symmetrical second gears (411) are meshed on the outer side of the rack (410). The outer sides of the two second gears (411) are rotatably connected to a second sliding frame (412). The upper end of the second sliding frame (412) is fixedly connected to two symmetrical L-shaped sliders (413). The upper ends of the two L-shaped sliders (413) are fixedly connected to the first sliding frame (44). The side of the two L-shaped sliders (413) that are close to each other is slidably connected to the mounting plate (41). The inner sides of the two second gears (411) are fixedly connected to a second shaft (414). The front and rear ends of the second shaft (414) are fixedly connected to a first sprocket (415). The outer side of the first sprocket (415) is meshed with a chain (416). The inner side of the chain (416) is meshed with a second sprocket (417). The inner side of the second sprocket (417) is fixedly connected to a brush (418). A sensor is provided on the inner side of the brush (418).

2. The ultraviolet curing device for display screen components according to claim 1, characterized in that: The outer sides of the two first gears (43) are rotatably connected to a first sliding frame (44). The outer side of the first sliding frame (44) has two symmetrical arc-shaped grooves. The lower end of the first sliding frame (44) is slidably connected to the mounting plate (41). The inner side of the groove of the first sliding frame (44) is slidably connected to a T-shaped slider (45). The inner side of the T-shaped slider (45) is rotatably connected to a first rotating shaft (46). The outer sides of the two first rotating shafts (46) are respectively fixedly connected to the two first gears (43). The two ends of the two first rotating shafts (46) that are close to each other are slidably connected to the groove of the mounting plate (41).

3. The ultraviolet curing device for display screen components according to claim 2, characterized in that: Two first rotating shafts (46) are rotatably connected to L-shaped plates (47) at their far ends. The two L-shaped plates (47) are fixedly connected to T-shaped sliders (45) at their close sides. A motor (48) is installed on the outside of one of the L-shaped plates (47). An ultraviolet lamp box (49) is installed at the lower end of both L-shaped plates (47).

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