Automatic discharging device for press-fit waste gas

Abstract

The utility model aims to provide the automatic discharge device for the press-fit waste gas, which is simple in structure, low in energy consumption and capable of pumping and discharging the waste gas in real time and reducing the concentration of the waste gas in a workshop. The device comprises a gas sensor, a frequency converter, a variable frequency motor, an exhaust fan and a PLC (programmable logic controller), the gas sensor is electrically connected with the PLC, the PLC is electrically connected with the frequency converter, the frequency converter is electrically connected with the variable frequency motor, an output shaft of the variable frequency motor is in transmission connection with the exhaust fan, and the output shaft of the variable frequency motor is in transmission connection with the exhaust fan. An air suction opening of the exhaust fan faces the interior of the workshop, and an air outlet of the exhaust fan faces the exterior of the workshop. The aluminum plate pressing device is applied to the technical field of aluminum plate pressing.

Description

Technical Field

[0001] The utility model is applied to the technical field of aluminum plate pressing, and particularly relates to an automatic exhaust gas discharge device for pressing. Background Art

[0002] The lamination process is to stack the semi-finished aluminum-based copper-clad laminates and push each volume into the press for high temperature and high pressure, so that the glue can cure and bond with the aluminum plate and copper foil at the same time. Figure 3 As shown, when the laminating machine is working, the copper foil plays a leading role in heating, and the upper heating plate and the lower heating plate play an auxiliary heating role. The circuit board is heated by the copper foil conductive heating method. Due to the continuous copper foil conductive heating, each point of the circuit board is heated evenly, the temperature difference between the middle and the lower parts of the stack is small, the amount of glue flowing on the board is small, the thickness uniformity is good, and because it is heated by the copper foil 7 conductive heating, the heating rate is fast and the overall laminating time is short. By using a hydraulic pressure system, a sufficiently large pressure required by the circuit board can be provided, so that the laminating operation space is very large. Since the glue is in a semi-cured state, and there is a small part of about 0.5% of solvents and other volatile molecules inside, and the press pipe is heated by high-temperature heat transfer oil, a certain amount of volatiles are generated, etc., waste gas will be generated during the laminating process. During the operation of the laminating machine, if the workshop does not exhaust the waste gas in time, the odor concentration in the workshop will become higher and higher, and the waste gas will be pungent and unpleasant, and may even cause damage to the human body, resulting in the operator being unable to continue to work normally in the workshop. If exhaust fans are installed directly in the workshop, the problem of high odor concentration in the workshop can be solved to a certain extent. However, if the exhaust fans work continuously for a long time, it will not only increase power consumption, but also be prone to failure, and the service life of the exhaust fans will be greatly shortened. Therefore, it is necessary to provide a compressed exhaust gas automatic discharge device with a simple structure, low energy consumption, and the ability to extract exhaust gas in real time and reduce the exhaust gas concentration in the workshop. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a compressed waste gas automatic discharge device which has a simple structure, low energy consumption, can extract waste gas in real time and reduce the waste gas concentration in the workshop.

[0004] The technical solution adopted by the utility model is: the utility model includes a gas sensor, a frequency converter, a variable frequency motor, an exhaust fan and a PLC controller, the gas sensor is electrically connected to the PLC controller, the PLC controller is electrically connected to the frequency converter, the frequency converter is electrically connected to the variable frequency motor, the output shaft of the variable frequency motor is transmission-connected to the exhaust fan, the air intake port of the exhaust fan faces the inside of the workshop, and the air outlet of the exhaust fan faces the outside of the workshop.

[0005] It can be seen from the above scheme that the gas sensor is used to detect the exhaust gas concentration of the workshop gas; the PLC controller can write a program to control the operation of the entire system, can realize various automatic controls, can better control and optimize the production process, the PLC controller can realize the control and automation of the production process, collect various signals at the production site, such as temperature, speed, pressure, etc., control the automation equipment in the production process, realize data processing and decision-making according to the programming logic, and can realize automated assembly lines, automated packaging and automated testing. The inverter has functions such as voltage stabilization, speed regulation, voltage regulation, and frequency regulation. The circuit of the inverter includes an input power supply circuit, a filter circuit, a rectifier circuit, a DC link, an inverter circuit, and a drive circuit. The rectifier circuit converts AC into DC, and the inverter circuit converts DC into AC with adjustable frequency and voltage, thereby realizing the speed and torque regulation of the motor; the variable frequency motor is used to drive the exhaust fan to rotate; the exhaust fan serves as a gas exchange window between the workshop and the outside world. The present application can extract the exhaust gas in the workshop in real time, reduce the exhaust gas concentration in the workshop, and ensure the physical and mental health of the operator.

[0006] A preferred solution is that the pressed exhaust gas automatic emission device also includes a temperature sensor, and the temperature sensor is electrically connected to the PLC controller.

[0007] A preferred solution is that the pressed exhaust gas automatic emission device also includes a sound control sensor, and the sound control sensor is electrically connected to the PLC controller.

[0008] A preferred solution is that the automatic exhaust gas discharge device further includes a buzzer, and the buzzer is electrically connected to the PLC controller.

[0009] A preferred solution is that the automatic exhaust gas discharge device further includes an indicator light, and the indicator light is electrically connected to the PLC controller.

[0010] A preferred solution is that the automatic exhaust gas discharge device further includes an exhaust gas pipe, and the air outlet of the exhaust fan is connected to an external exhaust gas treatment device via the exhaust gas pipe.

[0011] A preferred solution is that the variable frequency motor is an explosion-proof variable frequency motor.

[0012] A preferred solution is that the automatic exhaust gas discharge device for pressing further includes an air collecting hood, which is arranged on the top of the workshop, and the gas sensor is arranged in the hood body of the air collecting hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural block diagram of the utility model;

[0014] Figure 2 It is a structural diagram of the utility model applied in another scenario;

[0015] Figure 3 It is the structural block diagram of the pressing machine. DETAILED DESCRIPTION

[0016] like Figure 1 As shown, in this embodiment, the utility model includes a gas sensor 1, a frequency converter 2, a variable frequency motor 3, an exhaust fan 4 and a PLC controller 5, the gas sensor 1 is electrically connected to the PLC controller 5, the PLC controller 5 is electrically connected to the frequency converter 2, the frequency converter 2 is electrically connected to the variable frequency motor 3, the output shaft of the variable frequency motor 3 is transmission-connected to the exhaust fan 4, the air intake port of the exhaust fan 4 faces the inside of the workshop, and the air outlet of the exhaust fan 4 faces the outside of the workshop.

[0017] The gas sensor 1 is arranged on the top of the workshop machine. The laminating machine will volatilize irritating exhaust gas during operation. When the gas sensor 1 detects the exhaust gas, the gas sensor 1 transmits the signal to the PLC controller 5. The PLC controller 5 provides a control signal to the frequency converter 2 through its analog output module. These analog signals are usually 0 to 5 volts or 4 to 20 mA, which are used to instruct the frequency converter 2 to adjust the operating frequency of the variable frequency motor 3. The analog control can realize the continuous adjustment of the output frequency of the frequency converter 2. The frequency converter 2 drives the exhaust fan 4 to rotate, thereby exhausting the exhaust gas from the workshop.

[0018] like Figure 2 As shown, in this embodiment, the automatic exhaust gas discharge device for pressing further includes a temperature sensor 6, and the temperature sensor 6 is electrically connected to the PLC controller 5. When the pressing machine works in a relatively closed space, when the temperature sensor 6 detects that the indoor temperature exceeds 38 degrees, the temperature sensor 6 transmits a signal to the PLC controller 5, and the PLC controller 5 drives the inverter 2 to work, and the exhaust fan 4 starts to rotate, thereby exhausting the exhaust gas from the workshop.

[0019] like Figure 2 As shown, in this embodiment, the automatic exhaust gas discharge device for pressing further includes a sound control sensor 7, and the sound control sensor 7 is electrically connected to the PLC controller 5. When the pressing machine works in a relatively closed space, when the sound control sensor 7 detects that the noise in the room exceeds 90 decibels, the sound control sensor 7 transmits a signal to the PLC controller 5, and the PLC controller 5 drives the inverter 2 to work, and the exhaust fan 4 starts to rotate, thereby exhausting the exhaust gas from the workshop.

[0020] like Figure 1 As shown, in this embodiment, the automatic exhaust gas discharge device for pressing further includes a buzzer 8, and the buzzer 8 is electrically connected to the PLC controller 5. When the pressing machine works in a relatively closed space, when the gas sensor 1 detects that the exhaust gas in the room exceeds a certain concentration, the gas sensor 1 transmits a signal to the PLC controller 5, and the PLC controller 5 drives the buzzer 8 to work, and the buzzer 8 sounds, thereby reminding the operator to leave the room as soon as possible and turn on the exhaust fan 4 to exhaust the exhaust gas from the workshop.

[0021] like Figure 2 As shown, in this embodiment, the automatic exhaust gas discharge device for pressing further includes an indicator light 9, and the indicator light 9 is electrically connected to the PLC controller 5. When the pressing machine works in a relatively closed space, when the gas sensor 1 detects that the exhaust gas in the room exceeds a certain concentration, the gas sensor 1 transmits a signal to the PLC controller 5, and the PLC controller 5 drives the indicator light 9 to work, and the indicator light 9 flashes, thereby reminding the operator to leave the room as soon as possible and turn on the exhaust fan 4 to exhaust the exhaust gas from the workshop.

[0022] like Figure 2 As shown, in this embodiment, the automatic exhaust gas discharge device further includes an exhaust gas pipe 10, and the air outlet of the exhaust fan 4 is connected to an external exhaust gas treatment device 11 through the exhaust gas pipe 10. The external exhaust gas treatment device 11 filters and purifies the exhaust gas to achieve the purpose of environmental protection and greenness.

[0023] like Figure 1 As shown, in this embodiment, the variable frequency motor 3 is an explosion-proof variable frequency motor. The explosion-proof variable frequency motor is an electric motor with explosion-proof performance. Its main feature is that it adopts variable frequency technology and can automatically adjust the speed and torque according to the load conditions to achieve energy saving and noise reduction. The explosion-proof variable frequency motor has the following characteristics: high efficiency and energy saving. The use of variable frequency technology can automatically adjust the speed and torque according to the load conditions to achieve energy saving; good noise reduction effect. The variable frequency explosion-proof motor adopts variable speed technology, which can effectively reduce noise, vibration and noise; good speed regulation. The variable frequency control technology realizes the precise speed regulation of the motor, which can meet the application requirements of different occasions; high reliability. The variable frequency explosion-proof motor adopts high-quality explosion-proof materials and structural design, which can operate stably and reliably in harsh working environments.

[0024] like Figure 1As shown, in this embodiment, the automatic exhaust gas discharge device further includes an air collecting hood 12, which is arranged on the top of the workshop, and the gas sensor 1 is arranged in the cover body of the air collecting hood 12. The air collecting hood 12 serves as a collection structure of the automatic exhaust gas discharge device, effectively preventing the stains in the workshop from adhering to the sensing port of the gas sensor 1 for a long time, thereby ensuring that the gas sensor 1 accurately detects the exhaust gas concentration in the workshop.

Claims

1. A device for automatically discharging press-fitted waste gas, characterized in that: It comprises a gas sensor (1), a frequency converter (2), a variable frequency motor (3), an exhaust fan (4) and a PLC controller (5), wherein the gas sensor (1) is electrically connected to the PLC controller (5), the PLC controller (5) is electrically connected to the frequency converter (2), the frequency converter (2) is electrically connected to the variable frequency motor (3), the output shaft of the variable frequency motor (3) is drivingly connected to the exhaust fan (4), the air intake port of the exhaust fan (4) faces the interior of the workshop, and the air outlet of the exhaust fan (4) faces the exterior of the workshop.

2. The automatic exhaust gas discharge device for pressing according to claim 1 is characterized in that: The press-fit exhaust gas automatic emission device further comprises a temperature sensor (6), wherein the temperature sensor (6) is electrically connected to the PLC controller (5).

3. The automatic exhaust gas discharge device for pressing according to claim 1 is characterized in that: The pressed exhaust gas automatic emission device further comprises a sound control sensor (7), wherein the sound control sensor (7) is electrically connected to the PLC controller (5).

4. The automatic exhaust gas discharge device for pressing according to claim 1 is characterized in that: The press-fit exhaust gas automatic emission device further comprises a buzzer (8), and the buzzer (8) is electrically connected to the PLC controller (5).

5. The automatic exhaust gas discharge device for pressing according to claim 1 is characterized in that: The press-fit exhaust gas automatic emission device further comprises an indicator light (9), wherein the indicator light (9) is electrically connected to the PLC controller (5).

6. The automatic exhaust gas discharge device for pressing according to claim 1 is characterized in that: The press-fitted waste gas automatic discharge device further comprises a waste gas pipeline (10), and the air outlet of the exhaust fan (4) is connected to an external waste gas treatment device (11) via the waste gas pipeline (10).

7. The automatic exhaust gas discharge device for pressing according to claim 1 is characterized in that: The variable frequency motor (3) is an explosion-proof variable frequency motor.

8. The automatic exhaust gas discharge device for pressing according to claim 1 is characterized in that: The automatic exhaust gas discharge device for press-fitting further comprises a gas collecting hood (12), wherein the gas collecting hood (12) is arranged on the top of a workshop, and the gas sensor (1) is arranged in a hood body of the gas collecting hood (12).

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