A UV curing system with adjustable curing width

Abstract

An adjustable-width UV curing system, relating to the field of UV curing technology, includes: a UV curing lamp head comprising multiple main control boards, multiple driver boards, and multiple UV-LED lamp boards. Each main control board controls one or more driver boards, and each driver board controls one or more UV-LED lamp boards. The LEDs on each UV-LED lamp board are arranged in multiple rows, with one or more rows of LEDs forming a unit. Each unit is individually connected to its corresponding driver board, which controls its switching state and current adjustment. The main control boards are connected via a cascaded configuration. A host computer communicates with the main control boards to achieve collaborative control. This two-level control architecture, employing both column-level control and main board cascading, ensures the precision of single UV-LED lamp board control while enabling flexible adjustment of the large-area curing area through multi-main control board collaboration. This can meet the diverse needs of different industrial scenarios for UV curing width and precision.

Description

Technical Field

[0001] This application relates to the field of ultraviolet curing technology, specifically to a UV curing system with adjustable curing width. Background Technology

[0002] UV curing technology is widely used in printing, electronics manufacturing, and surface treatment. Its core principle is to use a UV curing device to generate ultraviolet light of a specific wavelength to irradiate UV-curable inks or resins, triggering the decomposition of photoinitiators and initiating a polymerization reaction, ultimately achieving rapid curing of the material. Current UV curing devices consist of several UV-LED lamp panels, typically connected in series, with a set of positive and negative wires controlling the simultaneous illumination of all LEDs on the panel. This design limits the smallest control unit for the illuminated / extinguished area to the size of the entire UV-LED lamp panel, preventing more precise zone control. Due to the fixed curing area and low control precision, current UV curing devices struggle to meet the flexibility and accuracy requirements of applications requiring localized curing or curing complex patterns, thus limiting the applicability and effectiveness of UV curing technology. Utility Model Content

[0003] In view of this, the purpose of this application is to provide a UV curing system with adjustable curing width to solve at least one of the above-mentioned technical problems.

[0004] This application provides a UV curing system with adjustable curing width, comprising: a UV curing lamp head, including multiple main control boards, multiple driver boards, and multiple UV-LED lamp boards. Each main control board controls one or more driver boards, and each driver board controls one or more UV-LED lamp boards. The LEDs on each UV-LED lamp board are arranged in multiple rows, with one or more rows of LEDs forming a unit. Each unit is individually connected to a corresponding driver board, and the driver board controls the switching state and current adjustment. The multiple main control boards are connected in a cascaded manner. A host computer is communicatively connected to the multiple main control boards to realize the collaborative control of the multiple main control boards.

[0005] In some alternative implementations, it also includes an industrial touch screen that communicates with multiple main control boards for operators to monitor and control each main control board.

[0006] In some optional implementations, the industrial control touch screen is an RS485 touch screen; each main control board is equipped with a DIP switch and two sets of RS485 communication chips. The DIP switch is used to set the communication address of the main control board, and the two sets of RS485 communication chips provide four RS485 communication interfaces. Each main control board communicates with the host computer and the industrial control touch screen through two RS485 communication interfaces, and each main control board is cascaded with other main control boards through the other two RS485 communication interfaces.

[0007] In some optional implementations, the UV curing lamp head also includes multiple temperature sensors, each of which monitors one or more UV-LED lamp panels to monitor the operating temperature of the corresponding UV-LED lamp panel in real time and transmit the temperature information to the main control board corresponding to these UV-LED lamp panels.

[0008] In some alternative implementations, the temperature sensor is a single-bus digital temperature sensor, and each temperature sensor monitors a UV-LED lamp panel.

[0009] In some optional implementations, the UV curing lamp head also includes multiple current detection modules, each current detection module monitoring one or more driver boards, used to monitor the current in the relevant circuits of the corresponding driver board in real time, and transmit the current information to the main control board corresponding to these driver boards.

[0010] In some optional implementations, each current sensing module includes a current sensing chip and an ADC sampling chip. The current sensing chip is used to convert the current in the relevant circuit of the driver board into a corresponding analog voltage signal, and the ADC sampling chip is used to convert the analog voltage signal into a digital signal and transmit it to the main control board.

[0011] In some alternative implementations, a power supply module is also included for supplying power to the UV curing lamp head and the host computer.

[0012] In some alternative embodiments, the device further includes a liquid cooling system, comprising a liquid cooling assembly and a liquid cooling unit, wherein the liquid cooling assembly is connected to multiple UV-LED lamp panels, and the liquid cooling unit is connected to the liquid cooling assembly and is used to supply coolant to the liquid cooling assembly, thereby cooling the multiple UV-LED lamp panels.

[0013] In some alternative embodiments, the liquid cooling assembly includes a liquid cooling plate and an inlet and an outlet on the liquid cooling plate. The liquid cooling plate has a cooling channel inside, which is S-shaped and connected to the inlet and outlet at both ends, respectively. The liquid cooling plate is bonded to multiple UV-LED lamp panels by thermally conductive adhesive.

[0014] Based on the above technical solution, the UV curing system with adjustable curing width provided in this application connects each main control board to a UV-LED lamp board via a driver board, enabling column-level control of the LED beads on the UV-LED lamp board, which can significantly improve the control accuracy of the UV curing width. Multiple main control boards are connected in a cascaded mode and controlled by a host computer, allowing them to work collaboratively to control more UV-LED lamp boards, covering a wider curing area and allowing for flexible adjustment, significantly expanding the UV curing width. This two-level control architecture of column-level control and main control board cascade ensures the accuracy of single UV-LED lamp board control while enabling flexible adjustment of the large-area curing area through the collaboration of multiple main control boards, meeting the differentiated needs of various industrial scenarios for UV curing width and accuracy. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a structural block diagram of a UV curing system with adjustable curing width provided in an embodiment of this application.

[0017] Figure 2 This is a schematic diagram of the connection structure of a host computer, an industrial control touch screen, a main control board, a driver board, and a UV-LED lamp board provided in an embodiment of this application.

[0018] Figure 3 This is a schematic diagram illustrating the first-level control and second-level control of UV curing width provided in an embodiment of this application.

[0019] Figure 4 This is a schematic diagram of the structure of a liquid cooling component provided in an embodiment of this application.

[0020] Reference numerals: 100, UV curing system; 10, UV curing lamp head; 11, main control board; 12, driver board; 13, UV-LED lamp board; 14, temperature sensor; 15, current detection module; 20, host computer; 30, industrial control touch screen; 40, power supply module; 41, first power module; 42, second power module; 43, third power module; 50, liquid cooling device; 51, liquid cooling component; 511, liquid cooling plate; 5111, cooling channel; 512, liquid inlet; 513, liquid outlet; 52, liquid cooling unit. Detailed Implementation

[0021] The specific embodiments of this application will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely a part of the embodiments of this application, and not all of them. Based on the description of this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0022] In the description of this application, unless otherwise expressly specified and limited, the terms "connection," "setup," "installation," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “center,” “top,” “bottom,” “inner,” “outer,” “vertical,” “horizontal,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] The terms “first,” “second,” “third,” etc., are used only to distinguish elements with similar properties, and do not indicate or imply relative importance or a specific order, unless otherwise explicitly stated or limited.

[0025] The terms “comprising,” “including,” “having,” or any other variations thereof are intended to cover a 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 a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0026] The term "multiple" means two or more (including two).

[0027] The term "and / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three cases: A exists alone, A and B exist simultaneously, and B exists alone.

[0028] The terms "an embodiment," "as an example," and "in one implementation" refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which may be included in at least one embodiment or example of this application. These illustrative expressions do not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Where there is no conflict, the embodiments and features described in these embodiments can be combined in a suitable manner.

[0029] Figure 1 A structural block diagram of a UV curing system 100 with adjustable curing width provided in this application embodiment is shown below. Figure 1 As shown in the figure, this application embodiment provides a UV curing system 100 with adjustable curing width, including a UV curing lamp head 10, a host computer 20, an industrial control touch screen 30, a power supply module 40, and a liquid cooling device 50. The following is a detailed description of each part.

[0030] The UV curing lamp head 10 is responsible for the emission and precise control of UV light. The UV curing lamp head 10 includes a main control board 11, a driver board 12, a UV-LED lamp board 13, a temperature sensor 14, and a current detection module 15.

[0031] The UV-LED lamp board 13 has multiple rows of LED beads arranged on it. Each main control board 11 is connected to the UV-LED lamp board 13 via a driver board 12, enabling row-level control of the LED beads on the UV-LED lamp board 13. This is the first level of control for the UV curing width, which can significantly improve the control accuracy of the UV curing width. Each main control board 11 can control one or more driver boards 12, and each driver board 12 can control one or more UV-LED lamp boards 13. Each row or multiple rows of LED beads on the UV-LED lamp board 13 is considered a unit, and each unit is individually connected to its corresponding driver board 12, which controls its switching state and current adjustment. The number of driver boards 12 or the row-level current distribution of the LED beads can be adjusted according to the required UV curing width control accuracy.

[0032] As an example, such as Figure 1As shown, each main control board 11 communicates with five driver boards 12 via an RS485 bus, thus enabling simultaneous control of these five driver boards 12. Each driver board 12 is configured with a unique communication address via the Modbus protocol and dedicated software, ensuring that the main control board 11 can accurately identify and control a specific driver board 12. Each driver board 12 is connected to and controls a UV-LED lamp board 13 via a communication interface (such as SPI or I²C). Each column of LEDs on each UV-LED lamp board 13 is individually connected to the driver board 12 via physical wiring or a specific circuit interface, and its switching state and current regulation are controlled by the driver board 12. In this way, each main control board 11 controls the on / off state and brightness of each column of LEDs on the five UV-LED lamp boards 13 through the five driver boards 12, achieving column-level control of the LEDs on the five UV-LED lamp boards 13.

[0033] Each main control board 11 is communicatively connected to the host computer 20 and the industrial touch screen 30. Each main control board 11 can also connect to other main control boards 11 via cascading. Multiple main control boards 11 can work collaboratively to control more UV-LED lamp panels 13. This is the second level of UV curing width control, a further expansion and collaboration based on the first level of control. It can cover a wider curing area and is flexibly adjustable, significantly expanding the UV curing width to meet the needs of different application scenarios. This system architecture allows the host computer 20 to control each main control board 11 individually. Meanwhile, the industrial touch screen 30 serves as a human-machine interface terminal, allowing operators to monitor and control each main control board 11, enabling remote monitoring and operation of the system. Each main control board 11 is equipped with a DIP switch, which sets the communication address of the main control board 11, ensuring that the host computer 20 can accurately identify and control a specific main control board 11.

[0034] As an example, such as Figure 2As shown, the industrial control touch screen 30 is an RS485 touch screen, and the UV curing lamp head 10 contains four main control boards 11. Each main control board 11 is equipped with two sets of RS485 communication chips. Each set of RS485 communication chips integrates an independent transmitter and receiver, and the two sets of RS485 communication chips together provide four RS485 communication interfaces. Each main control board 11 communicates with the host computer 20 and the RS485 touch screen through two RS485 communication interfaces to realize human-machine interaction and system monitoring. Each main control board 11 is cascaded with other main control boards 11 through the other two RS485 communication interfaces, and each main control board 11 is configured with a unique communication address through a DIP switch, thereby enabling the four main control boards 11 to work collaboratively. Furthermore, each main control board 11 controls the brightness and darkness of each row of LED beads on the five UV-LED lamp boards 13 through five driver boards 12. The four main control boards 11 work together under the control and monitoring of the host computer 20 and the industrial control touch screen 30, which can realize the independent or linkage control of each row of LED beads on the twenty UV-LED lamp boards 13. On this basis, more main control boards 11 can be cascaded to control a larger number of UV-LED lamp boards 13.

[0035] like Figure 1 As shown, the temperature sensor 14 is electrically connected to the main control board 11 and is preferably located near the heat-generating core area of ​​the UV-LED lamp board 13. The temperature sensor 14 is used to monitor the operating temperature of the UV-LED lamp board 13 in real time and transmit the temperature information to the main control board 11.

[0036] As an example, temperature sensor 14 is a single-bus digital temperature sensor that can convert temperature information into digital signals and transmit them to the main control board 11 for real-time reading. Each temperature sensor 14 monitors a UV-LED lamp board 13, ensuring the detection range and accuracy.

[0037] like Figure 1 As shown, the current detection module 15 is electrically connected to the main control board 11 and the driver board 12. The current detection module 15 is used to monitor the current in the relevant circuits of the driver board 12 in real time and transmit the current information to the main control board 11. Based on the received current information, combined with parameters such as temperature and UV curing process requirements, the main control board 11 sends control commands to the driver board 12. The driver board 12 executes the commands to control the current, thereby realizing functions such as preventing overcurrent damage, protecting the drive circuit, adjusting the UV curing width, precisely controlling the brightness of the LED beads, ensuring the consistency of the UV curing effect, energy saving control, and fault location.

[0038] As an example, each current detection module 15 monitors a corresponding driver board 12, used to monitor the current in the relevant circuits of the driver board 12, and transmits the current information to the main control board 11. Each current detection module 15 includes a current detection chip and an ADC sampling chip. The current detection chip is used to convert the current in the relevant circuits of the driver board 12 into a corresponding analog voltage signal, and the ADC sampling chip is used to convert the analog voltage signal into a digital signal and transmit it to the main control board 11 for real-time reading.

[0039] like Figure 1 As shown, the power supply module 40 supplies power to the UV curing lamp head 10, the host computer 20, the industrial control touch screen 30, and the liquid cooling device 50 to meet the power requirements of each part of the UV curing system 100 and ensure the stable operation of the UV curing system 100.

[0040] As an example, the power supply module 40 includes a first power supply module 41, a second power supply module 42, and a third power supply module 43. The first power supply module 41 is a 220V AC power supply used to power the host computer 20 and the liquid cooling unit 52 of the liquid cooling device 50. The second power supply module 42 is a 48V DC power supply used to power each driver board 12 of the UV curing lamp head 10. The third power supply module 43 is a 12V DC power supply used to power each main control board 11 of the industrial control touch screen 30 and the UV curing lamp head 10.

[0041] like Figure 1 As shown, the liquid cooling device 50 includes a liquid cooling component 51 and a liquid cooling unit 52. The liquid cooling component 51 is connected to the UV-LED lamp panel 13, and the liquid cooling unit 52 provides coolant to the liquid cooling component 51. The coolant carries away the heat generated by the UV-LED lamp panel 13 during operation, reducing the operating temperature of the UV-LED lamp panel 13 and thus ensuring the normal operation of the UV curing lamp head 10. The coolant can be water, alcohol-based solution, fluorinated liquid, or other liquid media.

[0042] As an example, such as Figure 4As shown, the liquid cooling assembly 51 includes a liquid cooling plate 511 and a liquid inlet 512 and a liquid outlet 513 disposed on the liquid cooling plate 511. The liquid cooling plate 511 has a cooling channel 5111 inside. The cooling channel is S-shaped and its two ends are connected to the liquid inlet 512 and the liquid outlet 513 respectively. The S-shaped cooling channel can increase the contact area of ​​the coolant and better remove heat. In use, the UV-LED lamp panel 13 is tightly bonded to the liquid cooling plate 511 with thermally conductive adhesive (such as silicone grease). When the UV-LED lamp panel 13 is working, the liquid cooling unit 52 delivers low-temperature coolant to the interior of the liquid cooling plate 511 through the liquid inlet 512. The coolant flows in the cooling channel 5111, fully absorbing the heat generated by the UV-LED lamp panel 13 conducted from the liquid cooling plate 511. Then, the high-temperature coolant flows out from the liquid outlet 513 and returns to the liquid cooling unit 52 for cooling and temperature reduction. This process is repeated to achieve rapid cooling and ensure that each UV-LED lamp panel 13 operates stably within a suitable temperature range.

[0043] When the UV curing system 100 is working, it communicates with the main control board 11 in the UV curing lamp head 10 through the host computer 20 and the industrial control touch screen 30 to transmit control commands, equipment status, temperature, current and other signals, so as to realize the row-level control of the lamp beads on multiple UV-LED lamp boards 13 and achieve precise adjustment of the UV curing width.

[0044] In summary, the UV curing system with adjustable curing width provided in this application embodiment connects each main control board to a UV-LED lamp board via a driver board, enabling column-level control of the LED beads on the UV-LED lamp board. This significantly improves the control accuracy of the UV curing width. Multiple main control boards are connected in a cascaded manner and controlled by a host computer, allowing them to work collaboratively to control more UV-LED lamp boards, covering a wider curing area and providing flexible adjustments, thus significantly expanding the UV curing width. This two-level control architecture, combining column-level control and main control board cascading, ensures the accuracy of controlling a single UV-LED lamp board while enabling flexible adjustment of the large-area curing area through multi-main control board collaboration. This can meet the diverse needs of different industrial scenarios for UV curing width and accuracy.

[0045] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application.

Claims

1. A UV curing system with adjustable curing width, characterized in that, include: The UV curing lamp head includes multiple main control boards, multiple driver boards, and multiple UV-LED lamp boards. Each main control board controls one or more driver boards, and each driver board controls one or more UV-LED lamp boards. The LEDs on each UV-LED lamp board are arranged in multiple rows, with one or more rows of LEDs forming a unit. Each unit is individually connected to the corresponding driver board, and the driver board controls the switching state and current adjustment. The multiple main control boards are connected in a cascaded manner. The host computer communicates with multiple main control boards to achieve coordinated control of the multiple main control boards.

2. The UV curing system with adjustable curing width according to claim 1, characterized in that, Also includes: An industrial control touch screen is communicatively connected to multiple main control boards, allowing operators to monitor and control each main control board.

3. The UV curing system with adjustable curing width according to claim 2, characterized in that, The industrial control touch screen is an RS485 touch screen; each main control board is equipped with a DIP switch and two sets of RS485 communication chips. The DIP switch is used to set the communication address of the main control board. The two sets of RS485 communication chips provide four RS485 communication interfaces. Each main control board communicates with the host computer and the industrial control touch screen through two RS485 communication interfaces. Each main control board is cascaded with other main control boards through the other two RS485 communication interfaces.

4. The UV curing system with adjustable curing width according to claim 1, characterized in that, The UV curing lamp head also includes multiple temperature sensors, each of which monitors one or more UV-LED lamp boards to monitor the operating temperature of the corresponding UV-LED lamp board in real time and transmit the temperature information to the main control board corresponding to these UV-LED lamp boards.

5. The UV curing system with adjustable curing width according to claim 4, characterized in that, The temperature sensor is a single-bus digital temperature sensor, and each temperature sensor monitors one of the UV-LED lamp boards.

6. The UV curing system with adjustable curing width according to claim 1, characterized in that, The UV curing lamp head also includes multiple current detection modules. Each current detection module monitors one or more of the driver boards, and is used to monitor the current in the relevant circuits of the corresponding driver board in real time, and transmit the current information to the main control board corresponding to these driver boards.

7. The UV curing system with adjustable curing width according to claim 6, characterized in that, Each current detection module includes a current detection chip and an ADC sampling chip. The current detection chip is used to convert the current in the relevant circuit of the driver board into a corresponding analog voltage signal, and the ADC sampling chip is used to convert the analog voltage signal into a digital signal and transmit it to the main control board.

8. The UV curing system with adjustable curing width according to claim 1, characterized in that, Also includes: The power supply module is used to supply power to the UV curing lamp head and the host computer.

9. The UV curing system with adjustable curing width according to claim 1, characterized in that, Also includes: The liquid cooling device includes a liquid cooling component and a liquid cooling unit. The liquid cooling component is connected to multiple UV-LED lamp panels, and the liquid cooling unit is connected to the liquid cooling component and is used to supply coolant to the liquid cooling component to cool and reduce the temperature of the multiple UV-LED lamp panels.

10. The UV curing system with adjustable curing width according to claim 9, characterized in that, The liquid cooling assembly includes a liquid cooling plate and a liquid inlet and a liquid outlet disposed on the liquid cooling plate. The liquid cooling plate has a cooling channel inside, which is S-shaped and its two ends are respectively connected to the liquid inlet and the liquid outlet. The liquid cooling plate is bonded to multiple UV-LED lamp panels by thermally conductive adhesive.

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