High-strength flexible board printing UV double-row curing irradiation lamp holder

Abstract

The utility model discloses a high-strength flexible plate printing UV (ultraviolet) double-row curing irradiation lamp holder, which comprises a shell, a plurality of light-emitting lens mounting grooves, a plurality of light-emitting lens mounting grooves and a plurality of light-emitting lens mounting grooves, the two light emitting lenses are respectively mounted in the two light emitting lens mounting grooves; the two rows of UV-LED modules are both installed on the bottom plate, and each row of UV-LED modules is installed at the position right opposite to the corresponding light emitting lens; the two light shielding plates are symmetrically installed on the left side and the right side of the bottom plate of the shell, a plurality of protruding strips parallel to the light emitting lens are arranged on the bottom faces of the light shielding plates, and the protruding strips are arranged in an inward inclined mode. According to the UV-LED module, by optimizing the appearance structure of the light shielding plate, the light receiving and condensing effects are achieved, the curing efficiency is improved, and the possibility that ultraviolet light emitted by the UV-LED module leaks from the side edge is greatly reduced or eliminated.

Description

Technical Field

[0001] This utility model relates to the field of UV curing technology, specifically to a high-strength flexible board printing UV double-row curing lamp head. Background Technology

[0002] UV curing equipment uses ultraviolet light (typically 200-450nm) to irradiate UV-curable materials (such as adhesives or inks), causing a polymerization reaction and thus curing them. It has a wide range of applications in printing, coating, and other industries. Traditional UV curing equipment uses UV mercury lamps as the light source, which consumes a lot of electricity and requires an exhaust system because UV mercury lamps produce ozone, resulting in high overall operating costs. Due to the advantages of LEDs (light-emitting diodes), such as low power consumption, long lifespan, miniaturization, lightweight design, and no mercury content, UV-LED light sources have increasingly replaced UV mercury lamps in UV curing equipment in recent years.

[0003] With the rapid development of ultraviolet curing technology, the industry urgently needs UV-LED curing light source systems with stronger irradiation intensity. To this end, a common approach in existing technologies is to use LED devices with higher power and / or denser LED arrays to provide higher light intensity. Furthermore, to meet the requirements of printing width, existing UV-LED curing light source systems typically have a longitudinal structure, employing UV-LED light strips that match the width / length of the printing area.

[0004] Chinese utility model patent document CN205842232U discloses a high-intensity irradiation water-cooled UV curing head, comprising: a fixed base, two rows of LED light panels mounted on the fixed base, and two optical glasses; each optical glass is arranged corresponding to one row of LED light panels, and the optical glass is located above the LED light panels. The fixed base has a first groove, a first water channel, a second water channel, a third water channel, a fourth water channel, and a second groove arranged side-by-side. The back of the fixed base has first to fourth water inlets and first to fourth water outlets. The two ends of the first water channel are connected to the first water inlet and the first water outlet, respectively; the two ends of the second water channel are connected to the second water inlet and the second water outlet, respectively; the two ends of the third water channel are connected to the third water inlet and the third water outlet, respectively; and the two ends of the fourth water channel are connected to the fourth water inlet and the fourth water outlet, respectively. This high-intensity irradiation water-cooled UV curing head uses water cooling and waterproofing to cool the LED light panels, achieving high cooling efficiency, and has two rows of LED light panels, which can meet the high-intensity irradiation requirements.

[0005] However, the water-cooled UV curing head with high-intensity irradiation mentioned above lacks a light-shielding structure, making it easy for the emitted ultraviolet light to leak out from the side and cause harm to the human body. Utility Model Content

[0006] In order to overcome the problem that the emitted ultraviolet light is easily leaked from the side and thus causes harm to the human body due to the lack of a light-shielding structure in the existing UV curing irradiation head, this utility model provides a high-strength flexible board printing UV double-row curing irradiation lamp head.

[0007] The technical solution of this utility model is as follows:

[0008] A high-strength flexible board printing UV dual-row curing lamp head includes:

[0009] The housing has two parallel mounting slots for the light-emitting lenses on its bottom plate.

[0010] Two light-emitting lenses are respectively installed in the two light-emitting lens mounting slots;

[0011] Two rows of UV-LED modules are mounted on the base plate, and each row of UV-LED modules is mounted in the position directly opposite the corresponding light-emitting lens.

[0012] Two light-shielding plates are symmetrically installed on the left and right sides of the bottom plate of the housing. The bottom surface of the light-shielding plates is provided with multiple raised strips parallel to the light-emitting lens, and the raised strips are inclined inward.

[0013] As a preferred embodiment of this utility model, the base plate is inverted V-shaped, and the two light-emitting lens mounting slots are respectively opened on the left and right sides of the base plate.

[0014] As a preferred embodiment of this utility model, the bottom surface of the light-shielding plate is inclined inward.

[0015] As a preferred embodiment of this utility model, the light-emitting lens is a semi-cylindrical convex lens.

[0016] As a preferred embodiment of this utility model, a first sealing strip is provided between the left and right sides of the light-emitting lens and the corresponding light-emitting lens mounting groove.

[0017] As a preferred embodiment of this utility model, each of the light-emitting lenses is provided with fixing strips on the left and right sides above the light-emitting lens for fixing the light-emitting lens in the corresponding light-emitting lens mounting groove.

[0018] As a preferred embodiment of this utility model, a second sealing strip is provided between the fixing strip and the corresponding light-emitting lens.

[0019] As a preferred embodiment of this utility model, the base plate has two rows of LED mounting slots for mounting the UV-LED module. Each row of LED mounting slots is located above a row of light-emitting lens mounting slots, and each LED mounting slot corresponds to the installation of one UV-LED module.

[0020] As a preferred embodiment of this utility model, it further includes two water-cooled heat sinks, which are installed inside the housing and located directly above the two rows of UV-LED modules, and the substrates of the two rows of UV-LED modules are thermally connected to the bottom surfaces of the two water-cooled heat sinks.

[0021] As a preferred embodiment of this utility model, the water-cooled radiator is provided with a water inlet channel and a water outlet channel arranged side by side. A water inlet interface is provided at the top of one end of the water inlet channel, and a water outlet interface is provided at the top of the other end of the water inlet channel. The other end of the water inlet channel is connected to the other end of the water outlet channel.

[0022] As a preferred embodiment of this utility model, an electrical connector is provided on the top of the housing, and the electrical connector is electrically connected to the two rows of UV-LED modules respectively.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] 1. By setting up a light shield and multiple inwardly inclined convex strips on the bottom surface of the light shield, the propagation path of light can be optimized, which can play the role of light collection and focusing, so that the ultraviolet light can be more concentrated on the UV ink / adhesive area on the printing roller, improving the curing efficiency, greatly reducing or eliminating the possibility of ultraviolet light emitted by the UV-LED module leaking from the side, and significantly improving the safety of the working environment.

[0025] 2. By installing two water-cooled heat sinks and thermally connecting the substrate of the UV-LED module to the bottom surface of the heat sink, the operating temperature of the UV-LED module can be effectively reduced, reducing performance degradation and damage caused by high temperature, thereby extending the life of the lamp head.

[0026] 3. By setting up two rows of UV-LED modules, the high-intensity irradiation requirements can be met, thus improving curing efficiency. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram illustrating the application of an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0030] Figure 3 This is a cross-sectional view of an embodiment of the present invention;

[0031] Figure 4 for Figure 3 Enlarged view of section A;

[0032] Figure 5 This is an exploded view of an embodiment of the present invention;

[0033] Figure 6 for Figure 5 Enlarged view of section B.

[0034] In the diagram,

[0035] 1. Printing roller; 2. Housing; 201. Base plate; 2011. Light-emitting lens mounting slot; 2012. LED mounting slot; 3. Light-emitting lens; 4. UV-LED module; 5. Water-cooled radiator; 501. Water inlet channel; 502. Water outlet channel; 503. Water inlet interface; 504. Water outlet interface; 6. Light shield; 601. Raised strip; 7. First sealing strip; 8. Fixing strip; 9. Second sealing strip; 10. Electrical connector. Detailed Implementation

[0036] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. It is also declared that the embodiments described below are only for explaining this utility model and are not intended to limit this utility model.

[0037] It should be noted that the terms "installation," "setting," "connection," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly defined. Indications of orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used in the application's product, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features.

[0038] Please see Figures 1 to 6 This embodiment provides a high-strength flexible board printing UV dual-row curing lamp head, which is installed above the printing roller 1 and is used to cure the UV ink / adhesive on the printing material running at high speed on the printing roller 1. The high-strength flexible flexographic printing UV dual-row curing lamp head includes a housing 2, two light-emitting lenses 3, two rows of UV-LED modules 4, two water-cooled heat sinks 5, and two light-shielding plates 6. The bottom plate 201 of the housing 2 has two parallel light-emitting lens mounting slots 2011, and the two light-emitting lenses 3 are respectively installed in the two light-emitting lens mounting slots 2011. The two rows of UV-LED modules 4 are all installed on the bottom plate 201, and each row of UV-LED modules 4 is installed in the position directly opposite to the corresponding light-emitting lens 3. The two water-cooled heat sinks 5 are installed in the housing 2 and are respectively located directly above the two rows of UV-LED modules 4, and the substrates of the two rows of UV-LED modules 4 are thermally connected to the bottom surface of the two water-cooled heat sinks 5. The two light-shielding plates 6 are symmetrically installed on the left and right sides of the bottom plate 201 of the housing 2. The bottom surface of the light-shielding plates 6 is provided with multiple protrusions 601 parallel to the light-emitting lenses 3, and the protrusions 601 are inclined inward.

[0039] The high-strength flexible board printing UV dual-row curing lamp head provided in this embodiment optimizes the light propagation path by setting a light shield 6 and multiple inwardly inclined convex strips 601 on the bottom surface of the light shield 6, which plays a role in light collection and focusing. This allows the ultraviolet light to be more concentratedly irradiated onto the UV ink / adhesive area on the printing roller 1, improving curing efficiency and greatly reducing or eliminating the possibility of ultraviolet light emitted by the UV-LED module 4 leaking from the side, thus significantly improving the safety of the working environment. By installing two water-cooled heat sinks 5 and thermally connecting the substrate of the UV-LED module 4 to the bottom surface of the heat sink, the operating temperature of the UV-LED module 4 can be effectively reduced, reducing performance degradation and damage caused by high temperature, thereby extending the life of the lamp head. By setting two rows of UV-LED modules 4, the high-intensity irradiation requirements can be met, improving curing efficiency.

[0040] Please see Figure 3 In one embodiment, the base plate 201 is inverted V-shaped, with two light-emitting lens mounting slots 2011 respectively located on the left and right sides of the base plate 201. The inverted V-shape of the base plate 201 allows the two rows of UV-LED modules 4 mounted on it to be tilted and opposite each other. This design takes into account the curved surface characteristics of the printing roller 1, enabling the two rows of UV-LED modules 4 to better match the roller surface of the printing roller 1. This allows the light source to better and more closely cure the product, ensuring that ultraviolet light can more evenly irradiate the surface of the printing roller 1, guaranteeing uniform and efficient curing of ink or adhesive. Since the size and curvature of the printing roller 1 may vary depending on different printing requirements, the inverted V-shaped base plate 201 design has a certain degree of adaptability. By adjusting the tilt angles of the left and right sides of the base plate 201, it can accommodate printing rollers 1 with different radii of curvature, ensuring effective ultraviolet light irradiation.

[0041] Please see Figure 3 In one embodiment, the bottom surface of the light shield 6 is inclined inward. This arrangement guides light to converge towards the center rather than scatter outward, helping to reduce ultraviolet light leakage from the sides, enhancing the light intensity of the lamp head, and thus improving curing efficiency. The inclined bottom surface ensures that when light hits the light shield 6, most of it is reflected back into the lamp head or directly onto the printing roller 1, rather than leaking out from the sides, significantly improving the safety of the working environment and reducing the risk of operators being directly exposed to ultraviolet light.

[0042] Please see Figure 3 In one embodiment, the light-emitting lens 3 is a semi-cylindrical convex lens. The semi-cylindrical convex lens causes the light emitted by the UV-LED module 4 to be refracted when passing through the lens, thereby focusing it near the focal point of the lens, which greatly enhances the intensity of ultraviolet light irradiating the UV ink / adhesive on the printing roller 1 and improves the curing efficiency.

[0043] Please see Figure 3 , Figure 4 In one embodiment, a first sealing strip 7 is provided between the left and right sides of the light-emitting lens 3 and the corresponding light-emitting lens mounting groove 2011. The first sealing strip 7 can prevent dust, impurities or other contaminants from entering the lamp head, reducing the contamination and damage to the UV-LED module 4, helping to maintain the stability of the UV-LED module 4 and extend its service life. At the same time, it changes the connection between the light-emitting lens 3 and the light-emitting lens mounting groove 2011 from a rigid connection to a flexible connection, preventing the light-emitting lens 3 from being damaged by bumps and collisions during transportation.

[0044] Please see Figure 3 , Figure 4 In one embodiment, each light-emitting lens 3 is provided with fixing strips 8 on both the left and right sides above it. The fixing strips 8 are used to fix the light-emitting lens 3 in the corresponding light-emitting lens mounting groove 2011. In addition, a second sealing strip 9 is provided between the fixing strip 8 and the corresponding light-emitting lens 3. The second sealing strip 9 can further prevent dust, impurities or other contaminants from entering the lamp head, reducing the contamination and damage to the UV-LED module 4. At the same time, it changes the connection between the light-emitting lens 3 and the light-emitting lens mounting groove 2011 from a rigid connection to a flexible connection, preventing the light-emitting lens 3 from being damaged by bumps and collisions during transportation.

[0045] Please see Figure 5 , Figure 6 In one embodiment, the base plate 201 has two rows of LED mounting slots 2012 for mounting UV-LED modules 4. Each row of LED mounting slots 2012 is located above a row of light-emitting lens mounting slots 2011, and each LED mounting slot 2012 corresponds to the installation of one UV-LED module 4. The arrangement of the LED mounting slots 2012 enables stable installation of the UV-LED modules 4, ensuring the stability and reliability of the lamp head.

[0046] Please see Figure 3 , Figure 5 In one embodiment, the water-cooled radiator 5 is provided with a water inlet channel 501 and a water outlet channel 502 arranged side by side. A water inlet interface 503 is located at the top of one end of the water inlet channel 501, and a water outlet interface 504 is located at the top of the other end of the water inlet channel 501. The other end of the water inlet channel 501 is connected to the other end of the water outlet channel 502. The water inlet interface 503 is used to connect to an external water source (such as a water pump or water tank) to introduce cooling water into the water-cooled radiator 5. The water outlet interface 504 is the outlet for the cooling water to flow out of the radiator, and is typically connected to another part of the circulation system or a drainage device. After entering the water inlet channel 501 through the water inlet interface 503, the cooling water flows into the water outlet channel 502, absorbs heat from the water-cooled radiator 5 and heats up, and finally flows out through the water outlet interface 504.

[0047] In addition, the entire material of the water-cooled radiator 5 is aluminum. Aluminum, as the overall material of the water-cooled radiator 5, performs excellently in terms of thermal conductivity, portability, corrosion resistance, processing performance, and cost-effectiveness, making the aluminum water-cooled radiator 5 a highly efficient, reliable, and economical heat dissipation solution.

[0048] Please see Figure 3 , Figure 5 In one embodiment, an electrical connector 10 is provided on the top of the housing 2, and the electrical connector 10 is electrically connected to the two rows of UV-LED modules 4 respectively. The electrical connector 10 makes it simple and quick to connect the UV-LED modules 4 to external power supplies or other control devices. When it is necessary to replace or maintain the UV-LED modules 4, it is only necessary to perform plugging and unplugging operations through the electrical connector 10, without complicated wiring processes, which greatly improves work efficiency. In addition, the setting of the electrical connector 10 makes it easier to integrate the UV dual-row curing lamp head into the entire printing control system. The control system can realize precise adjustment and monitoring of the working status of the UV-LED modules 4, such as adjusting the light intensity and controlling the switching time, thereby meeting different printing needs.

[0049] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

[0050] The present utility model patent has been described above with reference to the accompanying drawings. Obviously, the implementation of the present utility model patent is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present utility model patent, or the direct application of the inventive concept and technical solution of the present utility model patent to other occasions without modification, are all within the protection scope of the present utility model.

Claims

1. A high-strength flexible board printing UV double-row curing lamp head, characterized in that, include: The housing has two parallel mounting slots for the light-emitting lenses on its bottom plate. Two light-emitting lenses are respectively installed in the two light-emitting lens mounting slots; Two rows of UV-LED modules are mounted on the base plate, and each row of UV-LED modules is mounted in the position directly opposite the corresponding light-emitting lens. Two light-shielding plates are symmetrically installed on the left and right sides of the bottom plate of the housing. The bottom surface of the light-shielding plates is provided with multiple raised strips parallel to the light-emitting lens, and the raised strips are inclined inward.

2. The high-strength flexible board printing UV double-row curing lamp head according to claim 1, characterized in that, The base plate is inverted V-shaped, and the two light-emitting lens mounting slots are respectively opened on the left and right sides of the base plate.

3. The high-strength flexible board printing UV double-row curing lamp head according to claim 1, characterized in that, The bottom surface of the light-shielding plate is inclined inward.

4. The high-strength flexible board printing UV double-row curing lamp head according to claim 1, characterized in that, The light-emitting lens is a semi-cylindrical convex lens.

5. The high-strength flexible board printing UV double-row curing lamp head according to claim 1, characterized in that, A first sealing strip is provided between the left and right sides of the light-emitting lens and the corresponding light-emitting lens mounting groove.

6. The high-strength flexible board printing UV double-row curing lamp head according to claim 1, characterized in that, Each of the light-emitting lenses has a fixing strip on its upper left and right sides for fixing the light-emitting lens in the corresponding light-emitting lens mounting groove.

7. The high-strength flexible board printing UV double-row curing lamp head according to claim 6, characterized in that, A second sealing strip is provided between the fixing strip and the corresponding light-emitting lens.

8. The high-strength flexible board printing UV double-row curing lamp head according to claim 1, characterized in that, The base plate has two rows of LED mounting slots for mounting the UV-LED modules. Each row of LED mounting slots is located above a row of light-emitting lens mounting slots, and each LED mounting slot corresponds to the installation of one UV-LED module.

9. The high-strength flexible board printing UV double-row curing lamp head according to claim 1, characterized in that, It also includes two water-cooled heat sinks, which are installed inside the housing and located directly above the two rows of UV-LED modules, and the substrates of the two rows of UV-LED modules are thermally connected to the bottom surfaces of the two water-cooled heat sinks.

10. The high-strength flexible board printing UV double-row curing lamp head according to claim 9, characterized in that, The water-cooled radiator is provided with a water inlet channel and a water outlet channel arranged side by side. A water inlet interface is provided at the top of one end of the water inlet channel, and a water outlet interface is provided at the top of the other end of the water inlet channel. The other end of the water inlet channel is connected to the other end of the water outlet channel.

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