CN-224218596-U - Ultrasonic circuit board corrosion machine

Abstract

The utility model relates to an ultrasonic circuit board etching machine which comprises a power supply module, a control module, a temperature sensor, a key module, a display module, a relay, an ultrasonic module and a heater, wherein the power supply module is connected with the control module to supply power to the control module, the temperature sensor is connected with the control module to collect the temperature of the etching machine and send the temperature to the control module, the key module and the display module are respectively connected with the control module to perform key input and data display, and the control module is connected with the relay which is respectively connected with the ultrasonic module and the heater to control the ultrasonic module and the heater to work. The device simple structure, small, the simple operation has improved the corrosion effect and the operational reliability of device.

Inventors

• LIN ZIHAN
• GAO ZHONGJIAN
• WANG ZHONGYUAN

Assignees

• 三明学院

Dates

Publication Date

20260508

Application Date

20250108

Claims (9)

1. 1. The ultrasonic circuit board corrosion machine is characterized by comprising a power supply module, a control module, a temperature sensor, a key module, a display module, a relay, an ultrasonic module and a heater, wherein the power supply module is connected with the control module to supply power to the control module, the temperature sensor is connected with the control module to collect the temperature of the corrosion machine and send the temperature to the control module, the key module and the display module are respectively connected with the control module to perform key input and data display, and the control module is connected with the relay which is respectively connected with the ultrasonic module and the heater to control the ultrasonic module and the heater to work.
2. 2. The ultrasonic circuit board etching machine according to claim 1, wherein the power supply module comprises a transformer, a rectifying circuit and a voltage stabilizing circuit, the transformer is connected with a 220V alternating current power supply through a power plug and converts 220V alternating current into 7V alternating current, and the transformer is connected with the rectifying circuit and the voltage stabilizing circuit to convert 7V alternating current power supply into 5V direct current power supply and supply power to the control module.
3. 3. The ultrasonic circuit board etching machine according to claim 2, wherein the voltage stabilizing circuit is a three-terminal voltage stabilizing integrated circuit L7805.
4. 4. The ultrasonic circuit board etching machine according to claim 1, wherein the control module adopts a 51 single chip microcomputer, adopts a 5V direct current power supply to supply power, and starts vibration with a 12MHz crystal oscillator and a 30pF capacitor.
5. 5. The ultrasonic circuit board etching machine according to claim 4, wherein the 51 single-chip microcomputer is connected with the relay through P1.0 and P1.1 ports, the P1.0 port controls the output of the ultrasonic module, the P1.1 port controls the output of the heater, the 51 single-chip microcomputer is connected with the display module through P0 port and the temperature sensor through P3.7 port, and the key module is connected through P2.0, P2.1 and P2.2 ports.
6. 6. The ultrasonic circuit board etching machine according to claim 1, wherein the temperature sensor is a DS18B20 digital temperature sensor.
7. 7. The ultrasonic circuit board etching machine according to claim 1, wherein the key module comprises three keys K1, K2 and K3 for adjusting the working temperature and controlling the ultrasonic operation.
8. 8. The ultrasonic circuit board etching machine according to claim 1, wherein the display module is an LCD1602 liquid crystal display.
9. 9. The ultrasonic circuit board etching machine according to claim 1, wherein the ultrasonic module comprises an ultrasonic generator and a transducer, and ultrasonic waves generated by the ultrasonic generator are converted into mechanical waves by the transducer, so that cavitation effect of etching liquid is excited.

Description

Ultrasonic circuit board corrosion machine Technical Field The utility model relates to an ultrasonic circuit board etching machine. Background The circuit board etching machine is widely applied to university laboratories and small scientific research institutions. The traditional manual circuit board corrosion method is low in efficiency and has potential safety hazards. With the development of the automation technology, the automatic corrosion machine gradually replaces manual operation, and combines the functions of temperature control, stirring and automatic stopping to improve the corrosion efficiency and safety. In the prior art, a single-chip microcomputer is generally adopted to realize automatic control of temperature, time and stirring process. Although this promotes automation of the etching process, there are problems of complicated structure, inconvenient operation, and the like. The chinese patent with application number CN201621395524.6 discloses a stirring type intelligent circuit board etching machine, the equipment adopts a central processing unit to control temperature, stirring speed and etching duration, and monitors the concentration of etching solution through a pressure sensor. The pulsator stirring and lifting mechanism ensures uniformity of the etching liquid and prevents excessive etching. However, this solution has the problems of complex structure, large volume, difficult maintenance, etc. Mechanical stirring easily causes uneven concentration of corrosive liquid, influences the corrosion effect, and the equipment safety is poor. Disclosure of utility model The utility model aims to provide an ultrasonic circuit board etching machine which is simple in structure, small in size and convenient to operate, and the etching effect and the working reliability of the device are improved. In order to achieve the above, the technical scheme includes that the ultrasonic circuit board etching machine comprises a power supply module, a control module, a temperature sensor, a key module, a display module, a relay, an ultrasonic module and a heater, wherein the power supply module is connected with the control module to supply power for the control module, the temperature sensor is connected with the control module to collect the temperature of the etching machine and send the temperature to the control module, the key module and the display module are respectively connected with the control module to perform key input and data display, and the control module is connected with the relay which is respectively connected with the ultrasonic module and the heater to control the ultrasonic module and the heater to work. Further, the power module comprises a transformer, a rectifying circuit and a voltage stabilizing circuit, wherein the transformer is connected with a 220V alternating current power supply through a power plug and converts 220V alternating current into 7V alternating current, and the transformer is connected with the rectifying circuit and the voltage stabilizing circuit to convert 7V alternating current power supply into 5V direct current power supply and supply power to the control module. Further, the voltage stabilizing circuit adopts a three-terminal voltage stabilizing integrated circuit L7805. Further, the control module adopts a 51 single chip microcomputer, adopts a 5V direct current power supply to supply power, and starts the oscillation of a 12MHz crystal oscillator and a 30pF capacitor. Further, the 51 single-chip microcomputer is connected with the relay through the P1.0 port and the P1.1 port, the P1.0 port controls the output of the ultrasonic module, the P1.1 port controls the output of the heater, the 51 single-chip microcomputer is connected with the display module through the P0 port, is connected with the temperature sensor through the P3.7 port, and is connected with the key module through the P2.0 port, the P2.1 port and the P2.2 port. Further, the temperature sensor adopts a DS18B20 digital temperature sensor. Further, the key module comprises three keys K1, K2 and K3, and is used for adjusting working temperature and controlling ultrasonic operation. Further, the display module adopts an LCD1602 liquid crystal display. Further, the ultrasonic module comprises an ultrasonic generator and a transducer, wherein ultrasonic waves generated by the ultrasonic generator are converted into mechanical waves through the transducer, and cavitation effect of the corrosive liquid is excited. Compared with the prior art, the ultrasonic circuit board corrosion machine has the beneficial effects that the ultrasonic cavitation effect is adopted to replace mechanical stirring, so that the device not only simplifies the equipment structure, reduces the mechanical parts, reduces the equipment volume and the realization cost, is more convenient to operate, but also can uniformly enhance the reaction efficiency of the corrosive liquid, thereby improving the corrosion effect and