CN209982774U

CN209982774U - UVLED printing light source control system

Info

Publication number: CN209982774U
Application number: CN201822147098.XU
Authority: CN
Inventors: 梁柱强
Original assignee: Bangwo (guangzhou) Elec Technologies Co Ltd
Current assignee: Bangwo (guangzhou) Elec Technologies Co Ltd
Priority date: 2018-12-20
Filing date: 2018-12-20
Publication date: 2020-01-21
Anticipated expiration: 2028-12-20

Abstract

The utility model relates to a UVLED printing light source control system, including touch-sensitive screen, main control board, drive plate and UVLED lamp, touch-sensitive screen electric connection main control board, a plurality of drive plates of main control board electric connection, the drive plate all corresponds and is connected with the UVLED lamp, the main control board includes main control chip, storage circuit, drive plate connecting circuit, outside input/output circuit, pilot lamp button module, ethernet module, encoder interface and HMI communication module, main control chip electric connection storage circuit, drive plate connecting circuit, outside input/output circuit, pilot lamp button module, ethernet module, encoder interface and HMI communication module. The utility model discloses a control system of a plurality of UVLED lamps of usable touch-sensitive screen simultaneous control has effectively improved the simple operation degree of printing light source, can improve production efficiency, has practical meaning.

Description

UVLED printing light source control system

Technical Field

The utility model relates to a UVLED lithography apparatus technical field particularly, relates to UVLED printing light source control system.

Background

3D direct printing on paper means that a real three-dimensional and real dynamic color world is directly printed on the paper. The principle is that a 3D printing plate is adopted, ink containing a photosensitizer is printed on a designated position of a printed sheet through a 3D printing machine, the ink is combined with a rasterized image printed on the printed sheet in advance and is pre-cured, and then the ink containing the photosensitizer is transferred and cured on the surface of paper, so that a naked eye 3D image is presented on the printed sheet. If curing is performed using a conventional UV light source, there are several problems: 1. the temperature of the inside of the light source always irradiated is very high, and devices are easy to damage; 2. the light source is troublesome to control, the structure for realizing control is complex, and the service life is short; 3. high energy consumption and no environmental protection. Therefore, in order to improve the production efficiency and the product quality, a scheme of the UVLED printing light source which is convenient to control and stable in performance is necessary.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems that a common UV light source for printing is troublesome to control, short in service life, high in energy consumption, incapable of working stably for a long time and not beneficial to improving the production efficiency and the printing processing quality, the UVLED printing light source control system is provided.

UVLED printing light source control system, including touch-sensitive screen, main control board, drive plate and UVLED lamp, touch-sensitive screen electric connection main control board, a plurality of drive plates of main control board electric connection, the drive plate all corresponds and is connected with the UVLED lamp, the main control board includes main control chip, storage circuit, drive plate connecting circuit, external input output circuit, pilot lamp button module, ethernet module, encoder interface and HMI communication module, main control chip electric connection storage circuit, drive plate connecting circuit, external input output circuit, pilot lamp button module, ethernet module, encoder interface and HMI communication module.

Further, main control chip electric connection has the alarm lamp module.

Furthermore, the main control board further comprises a fan detection module and a temperature detection module, and the fan detection module and the temperature detection module are electrically connected with the main control chip.

Further, the drive board connection circuit includes an SP3485 transceiver.

Further, the type of the main control chip is STM32F 4.

Further, the drive board comprises a control chip, a constant current drive circuit, a current and voltage acquisition comparison circuit, an address encoder and a communication module, wherein the control chip is electrically connected with the constant current drive circuit, the current and voltage acquisition comparison circuit, the address encoder and the communication module.

Further, the control chip is of the model STM32F 1.

The utility model has the advantages that:

1. the control is visual and convenient, and a plurality of UVLED light sources can be controlled simultaneously.

2. Stable performance and long service life.

3. The alarm protection measures are complete, and the inspection and maintenance are convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic circuit connection diagram of a UVLED printing light source control system;

FIG. 2 is a schematic circuit diagram of the main control board;

FIG. 3 is a schematic circuit connection diagram of a drive board;

FIG. 4 is a circuit diagram of a memory circuit;

fig. 5 is a circuit diagram of a driving board connection circuit;

FIG. 6 is a circuit diagram of an external input-output circuit;

FIG. 7 is a circuit diagram of an indicator light key module;

FIG. 8 is a circuit diagram of an Ethernet module;

FIG. 9 is a circuit diagram of an encoder interface;

FIG. 10 is a circuit diagram of an HMI communication module;

FIG. 11 is a circuit diagram of a warning light module;

FIG. 12 is a circuit diagram of a fan detection module;

FIG. 13 is a circuit diagram of a temperature sensing module;

fig. 14 is a circuit diagram of a constant current driving circuit;

FIG. 15 is a circuit diagram of a current-voltage acquisition comparison circuit;

FIG. 16 is a circuit diagram of an address encoder;

fig. 17 is a circuit diagram of a communication module.

The attached drawings are as follows:

the system comprises a touch screen 1, a main control board 2, a driving board 3, a UVLED lamp 4, a main control chip 5, a storage circuit 6, a driving board connecting circuit 7, an external input and output circuit 8, an indicator light key module 9, an Ethernet module 10, an encoder interface 11, an HMI communication module 12, an alarm lamp module 13, a fan detection module 14, a temperature detection module 15, a control chip 16, a constant current driving circuit 17, a current and voltage acquisition and comparison circuit 18, an address encoder 19 and a communication module 20.

Detailed Description

Make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, will combine the attached drawing in the embodiment of the present invention below, to the technical scheme in the embodiment of the present invention clear, complete description, obviously, the described embodiment is a partial embodiment of the present invention, rather than whole embodiment. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 17, the present embodiment provides a UVLED printing light source control system, including a touch screen 1, a main control board 2, a driving board 3, and a UVLED lamp 4, where the touch screen 1 is electrically connected to the main control board 2, the main control board 2 is electrically connected to a plurality of driving boards 3, the driving boards 3 are correspondingly connected to the UVLED lamp 4, the main control board 2 includes a main control chip 5, a storage circuit 6, a driving board connection circuit 7, an external input/output circuit 8, an indicator light key module 9, an ethernet module 10, an encoder interface 11, and an HMI communication module 12, and the main control chip 5 is electrically connected to the storage circuit 6, the driving board connection circuit 7, the external input/output circuit 8, the indicator light key module 9, the ethernet module 10, the encoder interface 11, and the HMI communication module 12.

The main control chip 5 is electrically connected with an alarm lamp module 13.

The main control board 2 further comprises a fan detection module 14 and a temperature detection module 15, and the fan detection module 14 and the temperature detection module 15 are electrically connected with the main control chip 5.

The driving board 3 comprises a control chip 16, a constant current driving circuit 17, a current and voltage acquisition and comparison circuit 18, an address encoder 19 and a communication module 20, wherein the control chip 16 is electrically connected with the constant current driving circuit 17, the current and voltage acquisition and comparison circuit 18, the address encoder 19 and the communication module 20.

Specifically, the main control chip 5 adopts an STM32F4 series, and has the advantages of strong computing capability and high compatibility.

The memory circuit 6 is connected directly to the main control chip 5 by an FM25CL64 chip through an SPI method, and stores data. The random access memory (FRAM) has the advantages of high system reliability and simpler structure compared with an EEPROM or other nonvolatile memories.

The drive board connecting circuit 7 is provided with an SP3485 transceiver, the main control board 2 is connected with the plurality of drive boards 3 through the drive board connecting circuit 7 through an RS485 communication protocol, and when a user clicks the touch screen 1, the main control chip 5 synchronously sends commands to the plurality of drive boards 3 according to instructions stored in the storage circuit 6 to change the output state of the drive boards 3.

The external input and output circuit 8 is designed to be isolated and interference-proof by using an optical coupler. With the use of high power resistors, the input and output voltages can range from 5V to 32V. The compatibility of the equipment is ensured.

The indicator light key module 9 integrates keys and indicator lights, when the device runs, the device can directly use the keys to test the UVLED lamp, and when the device is controlled by external input, the indicator lights can be turned on or off to know whether the light source is started or stopped.

The ethernet module 10 has a networking function, and is used for connecting a computer to check the operation state of the equipment and remotely set parameters.

The encoder interface 11 is used for connecting an encoder so as to adjust the output power of the drive plate according to the rotating speed of the encoder.

The HMI communication module 12 has an isolation design, and prevents electromagnetic interference from occurring when the touch screen 1 and the main control board 2 are connected through RS 485.

The alarm lamp module 13 is isolated by using a relay and an optical coupler, and a 24V LED lamp can be driven by using a 5V power supply. The protection of the diode on the control output is added, and the current generated by the coil self-inductance when the relay is disconnected is prevented from impacting the triode. When the system fails, the alarm lamp module 13 can operate in time to remind the user to check the device.

The fan detection module 14 and the temperature detection module 15 are connected with the main control chip 5 through an ADC pin of the main control chip 5, and are respectively used for detecting the operating state of the external cooling fan and the temperature of the main control board 1, so as to ensure the normal operation of the cooling system of the device, and notify a user of timely handling when a fault occurs.

The control chip 16 adopts STM32F1 series, and has stable performance.

The constant current driving circuit 17 adopts a high-power DC-DC chip and is applied to the drive of the high-power UVLED lamp beads. The circuit has the functions of monitoring and limiting input and output currents, and detecting open circuit and short circuit faults. When the PWM drives the LED to be applied, the LED driving circuit has the functions of output voltage fault detection and thermal shutdown. The input and output of the power supply are connected with a protective tube, and when the output is short-circuited, the current exceeds the bearing value of the protective tube and is disconnected. The main control chip 5 controls current output by controlling related pins of the constant current driving IC.

The current and voltage acquisition and comparison circuit 18 acquires output voltage and current values in a proportional voltage reduction mode, utilizes an LM339A comparator chip to realize rapid comparison of maximum current, minimum current, maximum voltage and minimum voltage, and rapidly identifies whether problems exist in UVLEDs and the like in a hardware mode; the control chip 16 of the driving board 3 integrates the data and sends the data to the main control board 2 through the RS 485.

The address encoder 19 is directly connected to the pins of the control chip 16, and the position labels of the plurality of drive boards 3 are established by the selection of the encoder, and any one drive board 3 can be set to be No. 1 or No. 2 by dialing. For the corresponding control, the driver board 3 is numbered by dialing, and the output of each path can be controlled on the touch screen 1.

The communication module 20 adopts an SP3485 transceiver identical to the drive board connection circuit 7, and realizes stable communication between each drive board 3 and the main control board 2.

The foregoing is a more detailed description of the present invention, and it is not intended that the present invention be limited to the specific details, since modifications and variations will be apparent to those skilled in the art.

Claims

The UVLED printing light source control system is characterized by comprising a touch screen, a main control board, drive boards and UVLED lamps, wherein the touch screen is electrically connected with the main control board, the main control board is electrically connected with a plurality of drive boards, the drive boards are correspondingly connected with the UVLED lamps, the main control board comprises a main control chip, a storage circuit, a drive board connecting circuit, an external input and output circuit, an indicator lamp key module, an Ethernet module, an encoder interface and an HMI communication module, and the main control chip is electrically connected with the storage circuit, the drive board connecting circuit, the external input and output circuit, the indicator lamp key module, the Ethernet module, the encoder interface and the HMI communication module.
2. The UVLED printed light source control system of claim 1, wherein said master control chip is electrically connected to an alarm light module.
3. The UVLED printing light source control system of claim 1, wherein said main control board further comprises a fan detection module and a temperature detection module, said fan detection module and said temperature detection module being electrically connected to a main control chip.
4. A UVLED printed light source control system according to claim 1 wherein the driver board connection circuit includes an SP3485 transceiver.
5. A uv led printing light source control system according to claim 1, wherein the master control chip is of the type STM32F 4.
6. The UVLED printing light source control system of claim 1, wherein the driving board includes a control chip, a constant current driving circuit, a current and voltage acquisition comparison circuit, an address encoder and a communication module, the control chip is electrically connected with the constant current driving circuit, the current and voltage acquisition comparison circuit, the address encoder and the communication module.
7. A UVLED printing light source control system according to claim 5, in which said master control chip is STM32F 1.