UV-LED curing system

Abstract

The invention relates to the technical field of ultraviolet curing, and discloses a UV-LED curing system which comprises a light source module, a wavelength switching module, a temperature monitoring module, an anomaly detection module, a power adjusting module, a control module and a communication module. The light source module is used for outputting ultraviolet light with different wavelengths; the wavelength switching module is connected with the light source module and is used for switching the wavelength of the ultraviolet light output by the light source module; the temperature monitoring module is used for collecting temperature information of a curing area and transmitting the temperature information to the control module; and the abnormity detection module is connected with the light source module. The UV-LED lamp beads and the controller do not need to be replaced, the lamp bead set with the corresponding wavelength can be rapidly selected to work only through the wavelength switching module, the problem that time is consumed due to the fact that parts need to be frequently replaced due to the fixed wavelength is effectively solved, the adaptation capacity of equipment for different production requirements is remarkably improved, and the downtime in the production switching process is shortened.

Description

Technical Field

[0001] This invention relates to the field of ultraviolet curing technology, specifically to a UV-LED curing system. Background Technology

[0002] UV curing, as a radiation curing technology, has been widely used in many industries such as printing, coating, electronics, and medical due to its advantages such as fast curing speed, low energy consumption, and good environmental protection. In the production process of mobile phone inner screens, the curing process after the glue is applied to the bending area is crucial. UV-LED curing systems are usually used to cure the glue. This step directly affects the bonding strength and service life of the mobile phone inner screen and is one of the key processes to ensure the quality of the mobile phone inner screen.

[0003] Existing UV curing lamps have fixed wavelengths. When products are upgraded, the curing wavelength of the adhesives used changes, requiring the replacement of curing lamps and controllers with the corresponding wavelengths, which is quite time-consuming. Moreover, most existing LEDs and controllers can only provide light at fixed wavelengths, so changing the wavelength requires replacing both the LEDs and the controller. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a UV-LED curing system that solves the problem of time-consuming component replacements due to fixed wavelengths.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a UV-LED curing system, comprising a light source module, a wavelength switching module, a temperature monitoring module, an anomaly detection module, a power adjustment module, a control module, and a communication module;

[0006] The light source module is used to output ultraviolet light of different wavelengths;

[0007] The wavelength switching module is connected to the light source module and is used to switch the wavelength of ultraviolet light output by the light source module.

[0008] The temperature monitoring module is used to collect temperature information of the curing area and transmit it to the control module;

[0009] The anomaly detection module is connected to the light source module and is used to monitor the working status of the LEDs in the light source module and transmit the status information to the control module.

[0010] The power adjustment module is connected to the light source module and the control module, and is used to adjust the ultraviolet light power output by the light source module;

[0011] The control module is connected to the wavelength switching module, temperature monitoring module, anomaly detection module, and power adjustment module respectively, and is used to receive the signals transmitted by the wavelength switching module, temperature monitoring module, anomaly detection module, and power adjustment module and send control commands to each module.

[0012] Preferably, the light source module includes an LED array unit, a heat dissipation unit, and an interface unit. The LED array unit includes three groups of UV-LED LEDs, each group of LEDs is arranged independently, and is used to output ultraviolet light of a corresponding wavelength. The heat dissipation unit is used to dissipate the heat generated by the LEDs during operation. The interface unit is used to match and connect with the wavelength switching module.

[0013] Preferably, the wavelength switching module includes a switching execution unit, a signal recognition unit, and a status feedback unit. The switching execution unit is used to selectively turn on the power supply circuits of different wavelength LED groups. The signal recognition unit is used to read the wavelength information of the LED groups in the light source module. The status feedback unit includes an indicator light and a signal transmission circuit. The indicator light is used to visually display the wavelength of the currently turned-on LED group, and the signal transmission circuit is used to feed back the switching status to the control module.

[0014] Preferably, the temperature monitoring module includes a sensing unit, a signal amplification unit, and a filtering unit. The sensing unit is used to directly acquire the temperature of the curing area, the signal amplification unit is used to amplify the weak temperature signal output by the sensing unit, and the filtering unit is used to filter high-frequency noise in the temperature signal.

[0015] Preferably, the anomaly detection module includes an electrical parameter acquisition unit, a fault analysis unit, and an alarm triggering unit. The electrical parameter acquisition unit is used to acquire the voltage across the LED and the current in the LED circuit. The fault analysis unit is used to analyze the signal output by the electrical parameter acquisition unit to determine whether the LED is abnormal. The alarm triggering unit is used to issue an alarm signal and transmit a fault signal to the control module when the LED is abnormal.

[0016] Preferably, the power adjustment module includes a drive unit, a PWM generation unit, and a feedback acquisition unit. The drive unit is used to provide a stable operating current for the LED bead group of the light source module. The PWM generation unit is used to generate pulse signals with different duty cycles to adjust the working time of the LED bead group. The feedback acquisition unit is used to acquire the optical power output by the LED bead group and transmit it to the control module.

[0017] Preferably, the control module includes a main control unit, a data storage unit, and a bus communication unit. The main control unit is used to receive and process signals transmitted by each module, generate and output control commands. The data storage unit is used to store system operating parameters, temperature thresholds, and fault records. The bus communication unit is used to realize data transmission between the control module and other modules.

[0018] Preferably, the electrical parameter acquisition unit includes a voltage acquisition subunit, a current acquisition subunit, and a signal conditioning subunit. The voltage acquisition subunit is used to acquire the voltage across the UV-LED lamp bead, the current acquisition subunit is used to acquire the current in the lamp bead circuit, and the signal conditioning subunit is used to process the signals acquired by the voltage acquisition subunit and the current acquisition subunit.

[0019] Preferably, the voltage acquisition subunit is connected in parallel across the two ends of the LED array unit, and the current acquisition subunit is connected in series in the power supply circuit of the UV-LED LED array to acquire the voltage and current signals of the UV-LED LEDs.

[0020] Preferably, the communication module is connected to the control module. The communication module is used to receive the dispensing completion signal to start the curing process and to send the curing completion signal and fault alarm to external devices.

[0021] Working principle: After receiving the dispensing completion signal from the dispensing equipment, the communication module transmits the signal to the control module. The control module starts the curing process. According to the preset curing parameters or the operator's instructions, the control module selects the appropriate wavelength LED group through the wavelength switching module. During the curing process, the temperature monitoring module collects the temperature information of the curing area in real time and transmits it to the control module. The control module adjusts the output power of the LED group through the power adjustment module according to the temperature information to ensure that the temperature of the curing area is within a suitable range. The anomaly detection module monitors the working status of the LEDs in real time. If an LED anomaly is detected, the alarm trigger unit sends an alarm signal and transmits a fault signal to the control module. The control module switches the LED group according to the fault situation. After curing is completed, the control module sends a curing completion signal to the external device through the communication module.

[0022] This invention provides a UV-LED curing system. It has the following beneficial effects:

[0023] 1. This invention enables flexible switching of ultraviolet light wavelengths by setting a wavelength switching module. When the curing wavelength of the adhesive changes, there is no need to replace the UV-LED beads and controller. The corresponding wavelength bead group can be quickly selected and put into operation simply by using the wavelength switching module. This effectively solves the problem of time-consuming replacement of parts due to fixed wavelengths in traditional equipment, significantly improves the equipment's adaptability to different production needs, and reduces downtime during production switching.

[0024] 2. This invention ensures that the adhesive curing process is always under suitable process conditions through the coordinated operation of the temperature monitoring module, the anomaly detection module, and the power adjustment module. This reduces product quality problems caused by abnormal temperature, LED failure, or unsuitable power. It constructs a multi-parameter linkage control logic and improves the controllability and reliability of the curing process through information interaction and coordinated control of each module.

[0025] 3. This invention enhances the system's scalability and maintenance convenience through modular design and standardized interfaces. Each functional module is independently packaged and connected through standardized interfaces, which not only facilitates the individual debugging and replacement of each module, but also provides space for subsequent functional upgrades. At the same time, the communication module enables seamless integration with external devices, allowing the solidified system to be easily integrated into automated production lines and improving the continuity of the production process. Attached Figure Description

[0026] Figure 1 This is a framework diagram of a UV-LED curing system according to the present invention;

[0027] Figure 2 This is a module relationship architecture diagram of a UV-LED curing system according to the present invention;

[0028] Figure 3 This is a diagram of the light source module of a UV-LED curing system according to the present invention;

[0029] Figure 4 This is a diagram of the wavelength switching module of a UV-LED curing system according to the present invention;

[0030] Figure 5 This is a diagram of a temperature monitoring module for a UV-LED curing system according to the present invention;

[0031] Figure 6 This is a diagram of an anomaly detection module for a UV-LED curing system according to the present invention;

[0032] Figure 7 This is a diagram of the power adjustment module of a UV-LED curing system according to the present invention;

[0033] Figure 8 This is a control module diagram of a UV-LED curing system according to the present invention.

[0034] Figure 9 This is a diagram of the communication module of a UV-LED curing system according to the present invention.

[0035] Figure 10 This is a connection diagram of the lamp bead array unit, voltage acquisition subunit, and current acquisition subunit of a UV-LED curing system according to the present invention. Detailed Implementation

[0036] The technical solution of the present invention will now be clearly and completely described 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.

[0037] Please see the appendix Figure 1 -Appendix Figure 10 This invention provides a UV-LED curing system, including a light source module, a wavelength switching module, a temperature monitoring module, an anomaly detection module, a power adjustment module, a control module, and a communication module.

[0038] The light source module includes an LED array unit, a heat dissipation unit, and an interface unit, wherein the LED array unit contains LEDs;

[0039] The wavelength switching module includes a switching execution unit, a signal recognition unit, and a status feedback unit;

[0040] The temperature monitoring module includes a sensing unit, a signal amplification unit, and a filtering unit;

[0041] The anomaly detection module includes an electrical parameter acquisition unit, a fault analysis unit, and an alarm triggering unit. The electrical parameter acquisition unit includes a voltage acquisition subunit, a current acquisition subunit, and a signal conditioning subunit.

[0042] The power regulation module includes a drive unit, a PWM generation unit, and a feedback acquisition unit;

[0043] The control module includes a main control unit, a data storage unit, and a bus communication unit;

[0044] The voltage acquisition subunit is connected in parallel across the two ends of the LED array unit, and the current acquisition subunit is connected in series in the power supply circuit of the UV-LED LED array to acquire the voltage and current signals of the UV-LED LEDs.

[0045] The communication module is connected to the control module. The communication module is used to receive the dispensing completion signal to start the curing process, and to send the curing completion signal and fault alarm to external devices.

[0046] When curing is required, the communication module receives the dispensing completion signal from the external dispensing device and transmits the signal to the bus communication unit of the control module via a ribbon cable. The bus communication unit forwards the signal to the main control unit, and the main control unit then starts the curing process.

[0047] The main control unit sends a wavelength selection command to the wavelength switching module through the bus communication unit. According to the command, the switching execution unit of the wavelength switching module connects the power supply circuit of the corresponding wavelength LED bead group in the light source module through the wire. At the same time, the signal recognition unit reads the wavelength information of the UV-LED bead group and transmits it to the status feedback unit through the line. The indicator light of the status feedback unit lights up synchronously and feeds back the switching status to the bus communication unit of the control module through the signal transmission circuit. The wavelength switching module realizes flexible switching of ultraviolet light wavelength. When the curing wavelength of the glue changes, there is no need to replace the UV-LED beads and controller. The corresponding wavelength LED bead group can be quickly selected and put into operation through the wavelength switching module. This significantly improves the equipment's adaptability to different production needs and reduces downtime during production switching.

[0048] After the power supply is turned on, the LED array unit of the light source module outputs ultraviolet light. The heat dissipation unit works continuously to dissipate the heat generated by the UV-LED LED array during operation, conducts the heat to the heat dissipation structure and dissipates it through air convection, and ensures that the LED works stably.

[0049] The main control unit of the control module sends a power command to the PWM generation unit of the power regulation module through the bus communication unit. The PWM generation unit generates a pulse signal with a corresponding duty cycle, which is transmitted to the drive unit via wires. The drive unit provides a stable operating current to the lamp array unit of the light source module accordingly. The feedback acquisition unit collects the light power signal from the light-emitting surface of the lamp and transmits it to the bus communication unit of the control module through the line, forming a power closed-loop regulation. The closed-loop regulation of the power regulation module ensures the stability of the lamp output power, provides suitable power conditions for glue curing, and helps to improve the controllability of the curing process.

[0050] The temperature monitoring module's sensing unit collects temperature data in the curing area and transmits the weak temperature signal to the signal amplification unit via a shielded wire. The amplified signal is then sent to the filtering unit to filter out high-frequency interference. The processed temperature signal is transmitted to the bus communication unit of the control module via a wire. Upon receiving the signal, the main control unit sends an adjustment command to the power regulation module via the bus communication unit if the temperature exceeds the threshold. By monitoring the temperature in real time and coordinating with the power regulation module to make adjustments, the curing process is ensured to be in a suitable temperature environment, reducing product quality problems caused by abnormal temperatures and enhancing the reliability of the curing process.

[0051] The voltage acquisition subunit of the anomaly detection module is connected in parallel across the two ends of the LED array unit, and the current acquisition subunit is connected in series in the LED power supply circuit. The voltage and current signals are acquired respectively, processed by the signal conditioning subunit, and then transmitted to the fault analysis unit. When the fault analysis unit determines that the LED is abnormal, it sends a signal to the alarm triggering unit. The alarm triggering unit activates the audible and visual alarm and transmits the fault signal to the bus communication unit of the control module through a wire. After receiving the signal, the main control unit sends a command to the wavelength switching module to shut down the faulty LED group through the bus communication unit and writes the fault record to the data storage unit. The anomaly detection module can detect LED faults in a timely manner and take measures to avoid product quality problems caused by LED faults.

[0052] After curing is complete, the main control unit of the control module sends a shutdown command to the wavelength switching module through the bus communication unit. The switching execution unit disconnects the power supply to the lamp array unit. At the same time, the main control unit sends a curing completion signal to the communication module through the bus communication unit. The communication module converts this signal into a protocol signal and sends it to the main control unit. The main control unit sends a command to stop all modules from running, and the entire curing process ends. The communication module transmits signals at the beginning and end of the process, improving the continuity of the production process.

[0053] 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 UV-LED curing system, characterized in that, It includes a light source module, a wavelength switching module, a temperature monitoring module, an anomaly detection module, a power adjustment module, a control module, and a communication module; The light source module is used to output ultraviolet light of different wavelengths; The wavelength switching module is connected to the light source module and is used to switch the wavelength of ultraviolet light output by the light source module. The temperature monitoring module is used to collect temperature information of the curing area and transmit it to the control module; The anomaly detection module is connected to the light source module and is used to monitor the working status of the LEDs in the light source module and transmit the status information to the control module. The power adjustment module is connected to the light source module and the control module, and is used to adjust the ultraviolet light power output by the light source module; The control module is connected to the wavelength switching module, temperature monitoring module, anomaly detection module, and power adjustment module respectively, and is used to receive the signals transmitted by the wavelength switching module, temperature monitoring module, anomaly detection module, and power adjustment module and send control commands to each module.

2. The UV-LED curing system according to claim 1, characterized in that: The light source module includes an LED array unit, a heat dissipation unit, and an interface unit. The LED array unit includes three groups of UV-LED LEDs, each group of LEDs is arranged independently, and is used to output ultraviolet light of a corresponding wavelength. The heat dissipation unit is used to dissipate the heat generated by the LEDs during operation. The interface unit is used to match and connect with the wavelength switching module.

3. The UV-LED curing system according to claim 1, characterized in that: The wavelength switching module includes a switching execution unit, a signal recognition unit, and a status feedback unit. The switching execution unit is used to selectively turn on the power supply circuits of different wavelength LED groups. The signal recognition unit is used to read the wavelength information of the LED groups in the light source module. The status feedback unit includes an indicator light and a signal transmission circuit. The indicator light is used to visually display the wavelength of the currently turned-on LED group, and the signal transmission circuit is used to provide feedback on the switching status to the control module.

4. The UV-LED curing system according to claim 1, characterized in that: The temperature monitoring module includes a sensing unit, a signal amplification unit, and a filtering unit. The sensing unit is used to directly collect the temperature of the curing area, the signal amplification unit is used to amplify the weak temperature signal output by the sensing unit, and the filtering unit is used to filter high-frequency noise in the temperature signal.

5. A UV-LED curing system according to claim 1, characterized in that: The anomaly detection module includes an electrical parameter acquisition unit, a fault analysis unit, and an alarm triggering unit. The electrical parameter acquisition unit is used to acquire the voltage across the LED and the current in the LED circuit. The fault analysis unit is used to analyze the signal output by the electrical parameter acquisition unit to determine whether the LED is abnormal. The alarm triggering unit is used to issue an alarm signal and transmit a fault signal to the control module when the LED is abnormal.

6. The UV-LED curing system according to claim 1, characterized in that: The power regulation module includes a drive unit, a PWM generation unit, and a feedback acquisition unit. The drive unit is used to provide a stable operating current for the LED bead group of the light source module. The PWM generation unit is used to generate pulse signals with different duty cycles to adjust the working time of the LED bead group. The feedback acquisition unit is used to acquire the optical power output by the LED bead group and transmit it to the control module.

7. The UV-LED curing system according to claim 1, characterized in that: The control module includes a main control unit, a data storage unit, and a bus communication unit. The main control unit is used to receive and process signals transmitted by each module, generate and output control commands. The data storage unit is used to store system operating parameters, temperature thresholds, and fault records. The bus communication unit is used to realize data transmission between the control module and other modules.

8. A UV-LED curing system according to claim 5, characterized in that: The electrical parameter acquisition unit includes a voltage acquisition subunit, a current acquisition subunit, and a signal conditioning subunit. The voltage acquisition subunit is used to acquire the voltage across the UV-LED lamp bead, the current acquisition subunit is used to acquire the current in the lamp bead circuit, and the signal conditioning subunit is used to process the signals acquired by the voltage acquisition subunit and the current acquisition subunit.

9. A UV-LED curing system according to claim 8, characterized in that: The voltage acquisition subunit is connected in parallel across the two ends of the LED array unit, and the current acquisition subunit is connected in series in the power supply circuit of the UV-LED LED array to acquire the voltage and current signals of the UV-LED LEDs.

10. A UV-LED curing system according to claim 1, characterized in that: The communication module is connected to the control module. The communication module is used to receive the dispensing completion signal to start the curing process, and to send the curing completion signal and fault alarm to external devices.

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