CN111857191A - Method, device, equipment and storage medium for controlling liquid medicine in circuit board manufacturing process - Google Patents

Abstract

The invention provides a medicine control method, device, equipment and storage medium in a circuit board manufacturing process. The ultrasonic flowmeter adopts a non-contact flow measurement method to obtain the real-time medicine flow in the medicine supply pipeline, and does not need to carry out the medicine supply pipeline. Cutting and other auxiliary treatments improve the convenience and safety of installation and maintenance, reduce the operational risk of the production process, do not pose a potential safety hazard to the workshop environment, production equipment and operators, and also effectively avoid the corrosion of the flowmeter by the liquid medicine. In addition, the ultrasonic flowmeter has high accuracy and stability, which can monitor the real-time liquid flow more quickly and accurately, and control the automatic control valve of the liquid supply pipeline according to the real-time liquid flow, so as to improve the addition of liquid medicine in the circuit board manufacturing process. The degree of automation of the process improves the accuracy of potion control and improves the stability of circuit board product quality.

Description

Method, device, equipment and storage medium for controlling liquid medicine in circuit board manufacturing process

technical field

The present invention relates to the technical field of printed circuit boards, and in particular, to a method, device, equipment and storage medium for controlling liquid medicine in a manufacturing process of a circuit board.

Background technique

The circuit board process is relatively complex, including a number of wet and dry processes. Among them, the wet process includes electroplating, pattern circuit production, surface solder mask, and chemical immersion nickel gold. Usually, the wet process is produced by a production line, including multiple small sections, and a variety of chemicals are used in the process. All belong to high-risk chemicals of strong acid and strong alkali, and have higher requirements for process supervision. In the production process, in order to reduce manual operations, improve the workshop production environment, and reduce production safety risks, the central drug supply system is usually used to distribute bulk liquid medicines for the wet process.

In the process of use and management, it is generally transported to the temporary storage bucket of the workshop through the automatic adding system. At present, the mainstream design in the industry is to use an impeller flowmeter to monitor and count the flow rate and consumption of the liquid medicine in the wet process production line. This flowmeter The installation method is to connect the pipeline in series. During the installation process, the liquid medicine pipeline needs to be cut off, the flowmeter induction impeller is inserted into the inner wall, and then the pipeline incision is hot-melt welded, and then sealed with the sealing ring and rubber gasket.

In the actual use process of the existing mode, due to the influence of the corrosiveness of the chemical liquid, it is easy to cause the hot-melt welding position to de-solder, the aging of the sealing ring, the abnormality of the flowmeter probe impeller, etc., which lead to inaccurate statistics of the liquid flow monitoring process and affect the process parameters of the production line. Changes in the production quality of the product will cause abnormal production quality. In severe cases, there may be leakage of pipeline medicine, polluting the production workshop environment, posing a threat to the health of the staff, and is not conducive to sustainable production management; in addition, if the flowmeter impeller is abnormal, the equipment maintenance process Complex and low efficiency, the residual liquid medicine in the pipeline when replacing and disassembling the flowmeter has potential safety hazards in operation; the liquid medicine in the central drug supply system has many types, complex properties, and has characteristics such as corrosion, volatilization, and flammability, which is easy to damage the equipment body of the workshop. It can cause damage to the supporting devices, bring serious safety hazards, and accelerate the aging and damage of equipment.

SUMMARY OF THE INVENTION

The present invention provides a method, device, equipment and storage medium for controlling liquid medicine in a circuit board manufacturing process, so as to improve the convenience and safety of flowmeter installation and maintenance in the circuit board manufacturing process, and reduce the operation risk in the production process.

A first aspect of the present invention is to provide a method for controlling liquid medicine in a circuit board manufacturing process, comprising:

Use the ultrasonic flowmeter to obtain the real-time liquid medicine flow in the liquid medicine supply pipeline in the circuit board production line, wherein the liquid medicine supply pipeline connects the central medicine supply system and the liquid medicine tank of the production line;

The automatic control valve of the medicinal solution supply pipeline is controlled according to the real-time medicinal solution flow, so as to control the adding process of the medicinal solution.

Further, the ultrasonic flowmeter is fixed to the outer side wall of the medicinal solution supply pipe by a fixed clamp.

Further, the automatic control valve for controlling the medicinal solution supply pipeline according to the real-time medicinal solution flow includes:

The automatic control valve is adjusted according to the real-time liquid medicine flow rate and the preset target flow rate, so that the real-time liquid medicine flow rate is maintained at the preset target flow rate.

Further, the automatic control valve for controlling the medicinal solution supply pipeline according to the real-time medicinal solution flow includes:

Obtain the cumulative addition amount of the potion according to the real-time potion flow;

The opening or closing of the automatic control valve is controlled according to the cumulative addition amount of the liquid medicine, the concentration of the liquid medicine and the preset target addition amount.

Further, the method also includes:

obtaining the strength of the received signal of the ultrasonic flowmeter;

The intensity of the signal sent by the ultrasonic flowmeter is controlled according to the intensity of the signal received by the ultrasonic flowmeter and the preset signal intensity.

A second aspect of the present invention is to provide a liquid medicine control device in a circuit board manufacturing process, comprising:

The acquisition module is used to obtain the real-time liquid medicine flow in the liquid medicine supply pipeline in the circuit board production line by using the ultrasonic flowmeter, wherein the liquid medicine supply pipeline connects the central medicine supply system and the liquid medicine tank of the production line;

The control module is used for controlling the automatic control valve of the medicinal solution supply pipeline according to the real-time medicinal solution flow, so as to realize the control of the medicinal solution adding process.

Further, the ultrasonic flowmeter is fixed to the outer side wall of the medicinal solution supply pipe by a fixed clamp.

Further, the control module is used for:

The automatic control valve is adjusted according to the real-time liquid medicine flow rate and the preset target flow rate, so that the real-time liquid medicine flow rate is maintained at the preset target flow rate.

Further, the control module is used for:

Obtain the cumulative addition amount of the potion according to the real-time potion flow;

The opening or closing of the automatic control valve is controlled according to the cumulative addition amount of the liquid medicine, the concentration of the liquid medicine and the preset target addition amount.

Further, the acquisition module is also used for:

obtaining the strength of the received signal of the ultrasonic flowmeter;

The intensity of the signal sent by the ultrasonic flowmeter is controlled according to the intensity of the signal received by the ultrasonic flowmeter and the preset signal intensity.

A third aspect of the present invention is to provide a liquid medicine control device in a circuit board manufacturing process, including: an ultrasonic flowmeter, an automatic control valve, a memory, and a processor;

Wherein, the ultrasonic flowmeter is used to obtain the real-time liquid medicine flow in the liquid medicine supply pipeline in the circuit board production line;

The automatic control valve is used to control the adding process of the liquid medicine in the liquid medicine supply pipeline;

the memory is used to store computer programs;

The processor invokes the computer program to perform the method as described in the first aspect.

A fourth aspect of the present invention is to provide a computer-readable storage medium on which a computer program is stored;

The computer program, when executed by a processor, implements the method according to the first aspect.

The present invention provides a method, device, equipment and storage medium for controlling liquid medicine in the circuit board manufacturing process. The real-time liquid medicine flow in the liquid medicine supply pipeline in the circuit board production line is obtained by using an ultrasonic flowmeter, wherein the liquid medicine supply pipeline connects the central medicine supply system and the production line. The medicine tank; the automatic control valve of the medicine supply pipeline is controlled according to the real-time medicine flow, so as to realize the control of the medicine adding process. The invention adopts the non-contact flow measurement method to obtain the real-time liquid medicine flow in the liquid medicine supply pipeline through the ultrasonic flowmeter, does not need to cut the liquid medicine supply pipeline and other auxiliary processing, and improves the convenience and safety of installation and maintenance. It reduces the operational risk of the production process, does not pose a potential safety hazard to the workshop environment, production equipment and operators, and also effectively avoids corrosion and damage to the flowmeter by the liquid medicine, and improves its service life; in addition, the ultrasonic flowmeter has high accuracy and stability, and can Faster and more accurate monitoring of the real-time liquid medicine flow, control the automatic control valve of the liquid medicine supply pipeline according to the real-time liquid medicine flow, improve the automation degree of the liquid medicine adding process in the circuit board manufacturing process, improve the precision of the liquid medicine control, and improve the quality stability of the circuit board products .

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a flowchart of a method for controlling a medicinal solution in a circuit board manufacturing process provided by an embodiment of the present invention;

2 is a schematic diagram of a liquid medicine control system in a circuit board manufacturing process provided by an embodiment of the present invention;

FIG. 3 is a flowchart of a method for controlling liquid medicine in a circuit board manufacturing process provided by another embodiment of the present invention;

FIG. 4 is a flowchart of a method for controlling liquid medicine in a circuit board manufacturing process provided by another embodiment of the present invention;

5 is a structural diagram of a liquid medicine control device in a circuit board manufacturing process provided by an embodiment of the present invention;

FIG. 6 is a structural diagram of a liquid medicine control device in a circuit board manufacturing process according to an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

FIG. 1 is a flowchart of a method for controlling liquid medicine in a circuit board manufacturing process according to an embodiment of the present invention, and FIG. 2 is a schematic diagram of a liquid medicine control system in a circuit board manufacturing process. The present embodiment provides a method for controlling liquid medicine in a circuit board manufacturing process, and the specific steps of the method are as follows:

S101 , using an ultrasonic flowmeter to acquire the real-time liquid medicine flow in the liquid medicine supply pipeline in the circuit board production line, wherein the liquid medicine supply pipeline is connected to the central medicine supply system and the liquid medicine tank of the production line.

In this embodiment, the ultrasonic flowmeter is an instrument that measures the flow by detecting the action of the fluid flow on the ultrasonic beam (or ultrasonic pulse). It is used for the measurement of the medium that is not easy to touch and observe. The measurement accuracy is very high, and it is hardly disturbed by various parameters of the measured medium. Flow measurement of explosive media. In this embodiment, the ultrasonic flowmeter can be fixed on the outer side wall of the liquid medicine supply pipe by the fixed clamp, wherein the liquid medicine supply pipe is connected to the central medicine supply system and the liquid medicine tank of the production line, and does not need to pass through the temporary storage bucket; in the process of detecting the flow rate, The transmitter of the ultrasonic flowmeter transmits ultrasonic signals to the liquid medicine in the pipeline at a suitable angle through the outer wall of the liquid medicine supply pipe, and the receiver receives the ultrasonic signal, and obtains the real-time liquid medicine in the liquid medicine supply pipe according to the received ultrasonic signal. flow.

S102 , controlling the automatic control valve of the medicinal solution supply pipeline according to the real-time medicinal solution flow rate, so as to control the adding process of the medicinal solution.

In this embodiment, after obtaining the real-time liquid medicine flow, the automatic control valve of the liquid medicine supply pipeline can be controlled according to the real-time liquid medicine flow rate. Turning on or off realizes the control of the amount or timing of adding the potion, and by controlling the automatic control valve according to the real-time potion flow, the precise control of the potion adding process in the circuit board manufacturing process can be achieved. In this embodiment, an analytical instrument can be used to analyze the real-time liquid medicine flow, generate a control signal, and feed back the control signal to the automatic control valve through a feedback device, so as to dynamically control the adding process of the liquid medicine.

In the method for controlling the medicinal solution in the circuit board manufacturing process provided by this embodiment, the real-time medicinal solution flow in the medicinal solution supply pipeline in the circuit board production line is obtained by using an ultrasonic flowmeter, wherein the medicinal solution supply pipeline connects the central medicinal solution supply system and the medicinal solution tank in the production line; The real-time liquid medicine flow controls the automatic control valve of the liquid medicine supply pipeline, and realizes the control of the adding process of the liquid medicine. In this embodiment, the ultrasonic flowmeter adopts a non-contact flow measurement method to obtain the real-time liquid medicine flow in the liquid medicine supply pipeline, and does not need to cut the liquid medicine supply pipeline and other auxiliary processing, which improves the convenience and safety of installation and maintenance. , reduce the operational risk of the production process, do not pose a safety hazard to the workshop environment, production equipment, and operators, and also effectively avoid the corrosion and damage of the liquid to the flowmeter, and improve its service life; in addition, the ultrasonic flowmeter has high accuracy and stability. It can monitor the real-time potion flow more quickly and accurately, and control the automatic control valve of the potion supply pipeline according to the real-time potion flow, improve the automation degree of the potion adding process in the circuit board manufacturing process, improve the accuracy of potion control, and improve the stability of circuit board product quality sex.

On the basis of the above embodiment, the automatic control valve for controlling the medicinal solution supply pipeline according to the real-time medicinal solution flow described in S102 includes:

The automatic control valve is adjusted according to the real-time liquid medicine flow rate and the preset target flow rate, so that the real-time liquid medicine flow rate is maintained at the preset target flow rate.

In this embodiment, the preset target flow rate of the liquid medicine can be obtained from the process parameters of the production line, and then the real-time liquid medicine flow rate obtained by the ultrasonic flowmeter is compared with the preset target flow rate. When the real-time liquid medicine flow rate is greater than the preset target flow rate, then Control the automatic control valve to reduce the opening degree, thereby reducing the real-time liquid medicine flow rate until the real-time liquid medicine flow rate is maintained at the preset target flow rate; when the real-time liquid medicine liquid flow rate is less than the preset target flow rate, the automatic control valve is controlled to increase the opening degree, thereby increasing the Real-time potion flow until the real-time potion flow remains at the preset target flow. The control of the liquid medicine flow is realized through a dynamic feedback mechanism, and the control accuracy of the liquid medicine flow is improved.

On the basis of any of the above embodiments, as shown in FIG. 3 , the automatic control valve for controlling the medicinal solution supply pipeline according to the real-time medicinal solution flow rate may further include:

S201, obtaining the cumulative addition amount of the medicinal liquid according to the real-time medicinal liquid flow;

S202. Control the opening or closing of the automatic control valve according to the cumulative addition amount of the liquid medicine, the concentration of the liquid medicine, and a preset target addition amount.

In this embodiment, the cumulative addition amount of the liquid medicine can be counted according to the real-time liquid medicine flow rate, and it is judged whether the preset target addition amount required for the addition is reached according to the cumulative addition amount of the liquid medicine, wherein the preset target addition amount can be the liquid medicine volume or the liquid medicine solute. quality. If the preset target addition amount is the volume of the potion, the cumulative addition amount of the potion can be directly compared with the preset target addition amount. When the preset target addition amount is reached, the automatic control valve is controlled to close; if the preset target addition amount is the potion The solute mass can be obtained according to the cumulative addition amount of the potion and the concentration of the potion, and then compared with the preset target addition amount. When the preset target addition amount is reached, the automatic control valve is controlled to close.

In this embodiment, the preset target addition amount can be obtained from the process parameters of the production line. In addition, the current concentration of the medicinal water tank of the production line can also be obtained first, and the preset target concentration can be obtained according to the current concentration of the medicinal water tank of the production line and the preset target concentration. target addition.

On the basis of any of the above embodiments, as shown in FIG. 4 , the method for controlling the liquid medicine in the manufacturing process of the circuit board may further include:

S301, obtaining the strength of the received signal of the ultrasonic flowmeter;

S302. Control the intensity of the signal sent by the ultrasonic flowmeter according to the intensity of the signal received by the ultrasonic flowmeter and the preset signal intensity.

In this embodiment, due to the accumulation and rust of the inner and outer walls of the medicinal solution supply pipeline, the transmission of the ultrasonic signal is hindered to a certain extent. Obtain the strength of the signal received by the ultrasonic flowmeter and compare it with the preset signal strength. When the strength of the received signal is lower than the preset signal strength, the strength of the signal sent by the ultrasonic flowmeter can be increased to compensate for the change in signal strength during the ultrasonic transmission process. loss, ensure the normal operation of the ultrasonic flowmeter, and improve the flow detection accuracy.

Further, since the ultrasonic signal will not only be affected by the flow rate, but also be affected by external factors such as blockage or temperature change, resulting in an unstable state of the ultrasonic flowmeter. Receivers and receivers, respectively measure multiple groups of real-time liquid flow at different positions of the liquid supply pipeline, and obtain more accurate and stable real-time liquid flow results (such as averaging, etc.) according to the multiple groups of real-time liquid flow, so as to reduce external factors to further improve the accuracy of potion control. In an optional embodiment, the ultrasonic flowmeter has two pairs of transmitters and receivers, wherein the first transmitter and the second receiver are arranged in the same position (the first position), and the first receiver and the second transmitter Set in the same position (second position), the first transmitter in the first position transmits ultrasonic waves and is received by the first receiver in the second position, and the second transmitter in the second position transmits ultrasonic waves by the first position. The second receiver receives, so that two groups of real-time liquid medicine flows can be obtained, and then more accurate and stable real-time liquid medicine flow results can be obtained according to the two groups of real-time liquid medicine flow rates.

In addition, in this embodiment, a DC power supply and a connecting cable can be used to provide the transmission channel of electrical performance and working energy to the ultrasonic flowmeter to ensure its normal operation.

FIG. 5 is a structural diagram of a liquid medicine control device in a circuit board manufacturing process according to an embodiment of the present invention. The medicinal solution control device in the circuit board manufacturing process provided by this embodiment can execute the processing flow provided by the embodiment of the medicinal solution control method during the circuit board manufacturing process. As shown in FIG. 5 , the medicinal solution control device 40 during the circuit board manufacturing process includes an acquisition module 41 and the control module 42.

The obtaining module 41 is used for obtaining the real-time liquid medicine flow in the liquid medicine supply pipeline in the circuit board production line by using the ultrasonic flowmeter, wherein the liquid medicine supply pipeline connects the central medicine supply system and the liquid medicine water tank of the production line;

The control module 42 is configured to control the automatic control valve of the medicinal solution supply pipeline according to the real-time medicinal solution flow, so as to control the adding process of the medicinal solution.

On the basis of any of the above-mentioned embodiments, the ultrasonic flowmeter is fixed to the outer side wall of the medicinal solution supply pipe by a fixed clamp.

On the basis of any of the above embodiments, the control module 42 is used for:

The automatic control valve is adjusted according to the real-time liquid medicine flow rate and the preset target flow rate, so that the real-time liquid medicine flow rate is maintained at the preset target flow rate.

On the basis of any of the above embodiments, the control module 42 is used for:

Obtain the cumulative addition amount of the potion according to the real-time potion flow;

The opening or closing of the automatic control valve is controlled according to the cumulative addition amount of the liquid medicine, the concentration of the liquid medicine and the preset target addition amount.

On the basis of any of the above-mentioned embodiments, the obtaining module 41 is further configured to:

obtaining the strength of the received signal of the ultrasonic flowmeter;

The intensity of the signal sent by the ultrasonic flowmeter is controlled according to the intensity of the signal received by the ultrasonic flowmeter and the preset signal intensity.

The medicinal solution control device in the circuit board manufacturing process provided by the embodiment of the present invention may be specifically used to execute the method embodiments provided in the above-mentioned FIGS. 1 and 3-4 , and the specific functions will not be repeated here.

The medicinal solution control device in the circuit board manufacturing process provided by the embodiment of the present invention obtains the real-time medicinal solution flow in the medicinal solution supply pipeline in the circuit board production line by using an ultrasonic flowmeter, wherein the medicinal solution supply pipeline connects the central medicinal solution supply system and the production line medicinal solution tank; The real-time liquid medicine flow controls the automatic control valve of the liquid medicine supply pipeline, so as to realize the control of the adding process of the liquid medicine. In this embodiment, the ultrasonic flowmeter adopts a non-contact flow measurement method to obtain the real-time liquid medicine flow in the liquid medicine supply pipeline, and does not need to cut the liquid medicine supply pipeline and other auxiliary processing, which improves the convenience and safety of installation and maintenance. , reduce the operational risk of the production process, do not pose a safety hazard to the workshop environment, production equipment, and operators, and also effectively avoid the corrosion and damage of the liquid to the flowmeter, and improve its service life; in addition, the ultrasonic flowmeter has high accuracy and stability. It can monitor the real-time potion flow more quickly and accurately, and control the automatic control valve of the potion supply pipeline according to the real-time potion flow, improve the automation degree of the potion adding process in the circuit board manufacturing process, improve the accuracy of potion control, and improve the stability of circuit board product quality sex.

FIG. 6 is a schematic structural diagram of a liquid medicine control device in a circuit board manufacturing process according to an embodiment of the present invention. The medicinal solution control device in the circuit board manufacturing process provided by the embodiment of the present invention can execute the processing flow provided by the embodiment of the medicinal solution control method during the circuit board manufacturing process. As shown in FIG. 6 , the medicinal solution control device 50 during the circuit board manufacturing process includes an ultrasonic flowmeter. 51. Automatic control valve 52, memory 53, processor 54, computer program and communication interface 55; wherein, the ultrasonic flowmeter 51 is used to obtain the real-time liquid medicine flow in the liquid medicine supply pipeline in the circuit board production line, and the ultrasonic flowmeter 51 can It is fixed on the outer side wall of the medicine water supply pipeline by fixing clamps; the automatic control valve 52 is arranged on the medicine water supply pipeline, and is used to control the adding process of the medicine water in the medicine water supply pipeline; the computer program is stored in the memory 53, and is It is configured that the processor 54 executes the method for controlling the liquid medicine in the manufacturing process of the circuit board described in the above embodiments.

In this embodiment, the processor 54 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above-mentioned method can be completed by a hardware integrated logic circuit in the processor 54 or an instruction in the form of software. The above-mentioned processor 54 may be a general-purpose processor, including a central processing unit (CPU for short), a network processor (NP for short), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component. The memory 53 may include a high-speed random access memory (RAM: Random Access Memory), and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The communication interface 55 can realize the transmission and reception of signals through wired or wireless means, for example, the Internet, a wide area network, a local area network, a metropolitan area network, and the like can be used.

In the circuit board manufacturing process of the embodiment shown in FIG. 6 , the liquid medicine control device can be used to implement the technical solutions of the above method embodiments, and the implementation principles and technical effects thereof are similar, and are not repeated here.

In addition, the present embodiment also provides a computer-readable storage medium on which a computer program is stored, and the computer program is executed by a processor to implement the method for controlling the liquid medicine in the circuit board manufacturing process described in the above-mentioned embodiments.

In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware, or can be implemented in the form of hardware plus software functional units.

The above-mentioned integrated units implemented in the form of software functional units can be stored in a computer-readable storage medium. The above-mentioned software functional unit is stored in a storage medium, and includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute the methods described in the various embodiments of the present invention. some steps. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

Those skilled in the art can clearly understand that, for the convenience and brevity of the description, only the division of the above functional modules is used for illustration. The internal structure is divided into different functional modules to complete all or part of the functions described above. For the specific working process of the apparatus described above, reference may be made to the corresponding process in the foregoing method embodiments, and details are not described herein again.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims (12)

1. A method for controlling liquid medicine in a circuit board manufacturing process is characterized by comprising the following steps:

acquiring real-time liquid medicine flow in a liquid medicine supply pipeline of a circuit board production line by using an ultrasonic flowmeter, wherein the liquid medicine supply pipeline is connected with a central medicine supply system and a production line liquid medicine tank;

And controlling the automatic control valve of the liquid medicine supply pipeline according to the real-time liquid medicine flow, so that the liquid medicine adding process is controlled.

2. The method of claim 1, wherein the ultrasonic flow meter is secured to an outer sidewall of the liquid medicine supply conduit by a fixed clamp.

3. The method of claim 2, wherein the automatic control valve controlling the flow of the drug solution supply line based on the real-time drug solution flow comprises:

and adjusting the automatic control valve according to the real-time liquid medicine flow and a preset target flow so as to keep the real-time liquid medicine flow at the preset target flow.

4. The method of claim 2 or 3, wherein the automatic control valve controlling the flow of the drug solution supply line based on the real-time drug solution flow comprises:

acquiring the accumulative liquid medicine adding amount according to the real-time liquid medicine flow;

and controlling the automatic control valve to be opened or closed according to the accumulated adding amount of the liquid medicine, the concentration of the liquid medicine and a preset target adding amount.

5. The method of claim 1, further comprising:

acquiring the intensity of a signal received by the ultrasonic flowmeter;

And controlling the intensity of the signal sent by the ultrasonic flowmeter according to the intensity of the signal received by the ultrasonic flowmeter and the preset signal intensity.

6. A traditional Chinese medicine water control device in a circuit board manufacturing process is characterized by comprising:

the acquisition module is used for acquiring the real-time liquid medicine flow in a liquid medicine supply pipeline in a circuit board production line by using an ultrasonic flowmeter, wherein the liquid medicine supply pipeline is connected with a central medicine supply system and a production line liquid medicine tank;

and the control module is used for controlling the automatic control valve of the liquid medicine supply pipeline according to the real-time liquid medicine flow so as to control the adding process of the liquid medicine.

7. The apparatus of claim 6, wherein the ultrasonic flow meter is fixed to an outer sidewall of the liquid medicine supply line by a fixing clamp.

8. The apparatus of claim 7, wherein the control module is configured to:

and adjusting the automatic control valve according to the real-time liquid medicine flow and a preset target flow so as to keep the real-time liquid medicine flow at the preset target flow.

9. The apparatus of claim 7 or 8, wherein the control module is configured to:

Acquiring the accumulative liquid medicine adding amount according to the real-time liquid medicine flow;

and controlling the automatic control valve to be opened or closed according to the accumulated adding amount of the liquid medicine, the concentration of the liquid medicine and a preset target adding amount.

10. The apparatus of claim 6, wherein the obtaining module is further configured to:

acquiring the intensity of a signal received by the ultrasonic flowmeter;

and controlling the intensity of the signal sent by the ultrasonic flowmeter according to the intensity of the signal received by the ultrasonic flowmeter and the preset signal intensity.

11. A liquid medicine control device in a circuit board manufacturing process is characterized by comprising: the ultrasonic flowmeter, the automatic control valve, the memory and the processor;

the ultrasonic flowmeter is used for acquiring the real-time liquid medicine flow in a liquid medicine supply pipeline in a circuit board production line;

the automatic control valve is used for controlling the adding process of the liquid medicine in the liquid medicine supply pipeline;

the memory is used for storing a computer program;

the processor calls the computer program to perform the method according to any of claims 1-5.

12. A computer-readable storage medium, having stored thereon a computer program;

The computer program, when executed by a processor, implementing the method of any one of claims 1-5.

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