A coating cleaning system and control method thereof

Abstract

The present application provides a coating and cleaning system and a control method thereof, wherein pipeline status information corresponding to a target pipeline section in a pipeline unit of a coating and conveying pipeline is obtained; whether the target pipeline section needs to be cleaned is determined based on the pipeline status information corresponding to the target pipeline section; when it is determined that the pipeline section needs to be cleaned, the mark of the target pipeline section is saved in a directory to be cleaned; according to the second number in the mark, the marks of all pipeline sections saved in the directory to be cleaned are classified; when the target pipeline unit meets the cleaning conditions, the main pipeline section and / or sub-pipeline section corresponding to the target pipeline unit in the directory to be cleaned is determined, so as to clean the main pipeline section and / or sub-pipeline section. By automatically monitoring each pipeline section, blocked pipeline sections can be found in time and cleaned, thereby ensuring the working quality and work efficiency of the coating machine.

Description

Technical Field

[0001] The present application relates to the technical field of chemical cleaning, and in particular to a coating cleaning system and a control method thereof. Background Art

[0002] As a kind of precision wet coating equipment, coating machines are currently widely used in many fields such as touch panels, liquid crystal panels, high-function films, printing, and new energy (such as solar cells, lithium-ion battery electrode coating), etc. The coating agent pipeline mechanism is an important system that directly affects product quality and material loss.

[0003] After the coating agent is transported over a long distance in the delivery pipeline, the delivery pipeline needs to be cleaned to prevent the residual coating agent from clogging the pipeline and affecting the delivery function of the delivery pipeline. When cleaning the existing coating agent delivery pipeline, staff are required to manually monitor the status of the delivery pipeline on site. If the delivery pipeline is found to be blocked, it is not timely, which wastes manpower and affects the normal use of the coating agent. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide a coating and cleaning system and a control method thereof, which can promptly detect and clean blocked pipe sections, thereby ensuring the working quality and working efficiency of the coating machine.

[0005] In a first aspect, the present application provides a control method for a coating and cleaning system, the method comprising obtaining pipeline status information corresponding to a target pipeline segment in a pipeline unit of a coating and conveying pipeline, the pipeline status information comprising pipeline blockage status information; determining whether the target pipeline segment needs to be cleaned according to the pipeline status information corresponding to the target pipeline segment; when it is determined that the pipeline segment needs to be cleaned, saving a mark of the target pipeline segment in a directory to be cleaned, the mark comprising a first number and a second number, the first number being the number of the pipeline unit corresponding to the pipeline segment, and the second number being the number of the connection relationship corresponding to the pipeline segment; according to the second number in the mark, classifying the marks of all pipeline segments saved in the directory to be cleaned, the pipeline segment comprising a main pipeline segment and a secondary pipeline segment, the main pipeline segment being used to connect a first interface of a three-way valve and a coating agent output interface, and the secondary pipeline segment being used to connect a second interface of the three-way valve and a coating agent output end of a corresponding coating agent storage bucket; when the target pipeline unit meets the cleaning conditions, determining the main pipeline segment and / or secondary pipeline segment corresponding to the target pipeline unit in the directory to be cleaned, so as to clean the main pipeline segment and / or secondary pipeline segment.

[0006] Optionally, the three-way valve is formed with a first interface, a second interface and a third interface, and the third interface is used to connect to a cleaning agent output interface of the cleaning pipeline, and the main section is cleaned in the following manner: a first valve control instruction is generated and sent to a first target valve controller corresponding to the main section; the first target valve controller controls the first interface of the corresponding three-way valve to be connected to the third interface according to the received first valve control instruction, and the cleaning agent and target gas are input through the third interface to complete the cleaning of the main section.

[0007] Optionally, the secondary pipeline section is cleaned in the following manner: a second valve control instruction is generated and sent to a second target valve controller corresponding to the secondary pipeline section; the second target valve controller controls the second interface of the corresponding three-way valve to be connected to the third interface according to the received second valve control instruction, and the cleaning agent and the target gas are input through the third interface to complete the cleaning of the secondary pipeline section.

[0008] Optionally, multiple flow sensors are arranged on the inner wall of the target pipeline section at preset intervals, and the pipeline status information corresponding to the target pipeline section in the target pipeline unit in the coating and cleaning pipeline is obtained in the following manner: receiving target parameter values ​​collected and fed back by multiple flow sensors corresponding to the target pipeline section; calculating the mean between the target parameter values ​​as the average flow rate value of the target pipeline section.

[0009] Optionally, whether the target pipeline section needs to be cleaned is determined in the following manner: the average flow velocity value of the target pipeline section is compared with a preset flow velocity value; if the average flow velocity value of the target pipeline section is greater than the preset flow velocity value, it is determined that the target pipeline section does not need to be cleaned; if the average flow velocity value of the target pipeline section is less than or equal to the preset flow velocity value, it is determined that the target pipeline section needs to be cleaned.

[0010] Optionally, a first two-way valve is arranged between the third interface of the three-way valve and a cleaning agent output interface of the cleaning pipeline, the cleaning agent input interface of the cleaning pipeline is connected to the output end of the cleaning agent delivery system and is provided with a second two-way valve, the gas source input interface of the cleaning pipeline is connected to the output end of the gas source delivery system and is provided with a third two-way valve, and the cleaning agent and target gas are input in the following manner: a third valve control instruction is generated and sent to a third target valve controller, and a fourth control instruction is sent to a fourth target valve controller; the third target valve controller controls the corresponding first two-way valve to be in a conducting state within a first preset time according to the received third valve control instruction; the fourth target valve controller controls the corresponding second two-way valve and the third two-way valve to be in a conducting state within a first preset time according to the received fourth valve control instruction.

[0011] Optionally, it also includes receiving valve status information fed back by the valve status monitoring module, the valve status information is used to indicate the valve opening value of the corresponding valve; based on the received valve opening values ​​of the first two-way valve, the second two-way valve and the third two-way valve, determining whether each valve is opened; if at least one valve is not opened, generating and displaying an alarm message.

[0012] In the second aspect, the present application provides a coating and cleaning system, which includes at least a main controller, which is used to generate corresponding valve control instructions based on the received pipeline status information; at least one valve controller, which is used to control the corresponding valve to change its working state according to the valve control instructions sent by the main controller; a coating delivery pipeline, which includes one or more pipeline units, and the pipeline unit includes at least a main section, a secondary pipeline section and a three-way valve, the main section is used to connect the first interface of the three-way valve and the coating agent output interface, and the secondary pipeline section is used to connect the second interface of the three-way valve with a corresponding coating agent The coating agent output end of the storage barrel, the coating agent output interface is used to deliver the coating agent to the nozzle of the coating machine; the cleaning pipeline, the cleaning agent output interface of the cleaning pipeline is connected to the third interface of the three-way valve, the cleaning agent input interface of the cleaning pipeline is connected to the output end of the cleaning agent delivery system, and the air source input interface of the cleaning pipeline is connected to the output end of the air source delivery system; the valve status monitoring module, the output end of the valve status monitoring module is connected to the main controller, and the input end of the valve status monitoring module is respectively connected to each valve controller to obtain the valve status information; valves are also arranged in the coating delivery pipeline and / or the cleaning pipeline, and the valves are connected to the corresponding valve controllers.

[0013] Optionally, the coating and cleaning system also includes: a first target sensor, which is arranged inside or outside the coating agent storage barrel, and is connected to the main controller to send a collected first target parameter value to the main controller, and the first target parameter value is used to indicate the usage of the coating agent in the coating agent storage barrel; a second target sensor, which is arranged inside or outside the coating agent storage barrel, and is connected to the main controller to send a collected second target parameter value to the main controller, and the second target parameter value is used to indicate the cleaning condition of the coating agent in the coating agent storage barrel; an alarm, which is connected to the main controller to perform an alarm action according to the alarm information sent by the main controller.

[0014] Optionally, a cloud module is also included, which is connected to the main controller and is used to upload the collected data received by the main controller to the background server.

[0015] In a third aspect, the present application also provides an electronic device, comprising: a processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor and the memory communicate through the bus, and when the machine-readable instructions are executed by the processor, the steps of the control method of the coating and cleaning system as described above are performed.

[0016] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of the control method of the coating and cleaning system as described above are executed.

[0017] The coating cleaning system and control method provided by the present application obtain pipeline status information corresponding to a target pipeline segment in a pipeline unit of a coating delivery pipeline, wherein the pipeline status information includes pipeline blockage status information; determine whether the target pipeline segment needs to be cleaned according to the pipeline status information corresponding to the target pipeline segment; when it is determined that the pipeline segment needs to be cleaned, save a mark of the target pipeline segment in a to-be-cleaned directory, wherein the mark includes a first number and a second number, wherein the first number is the number of the pipeline unit corresponding to the pipeline segment, and the second number is the number of the connection relationship corresponding to the pipeline segment; according to the second number in the mark, all pipelines saved in the to-be-cleaned directory are cleaned. The markings of the sections are classified, and the pipeline sections include main sections and secondary pipeline sections. The main section is used to connect the first interface of the three-way valve and the coating agent output interface, and the secondary pipeline section is used to connect the second interface of the three-way valve and the coating agent output end of a corresponding coating agent storage barrel; when the target pipeline unit meets the cleaning conditions, the main section and / or secondary pipeline section corresponding to the target pipeline unit in the to-be-cleaned catalog is determined to clean the main section and / or secondary pipeline section. By automatically monitoring each pipeline section, the blocked pipeline section can be discovered in time and automatically cleaned, thereby ensuring the working quality and work efficiency of the coating machine.

[0018] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the structure of a coating and cleaning system provided in an embodiment of the present application;

[0021] Figure 2 A schematic diagram of the structure of a coating agent delivery pipeline provided in an embodiment of the present application;

[0022] Figure 3 A flow chart of a control method for a coating and cleaning system provided in an embodiment of the present application;

[0023] Figure 4 A schematic diagram of a flow chart of the steps for determining pipeline status information provided in an embodiment of the present application;

[0024] Figure 5 A schematic diagram of a flow chart of a step of determining whether a target pipeline section needs to be cleaned provided in an embodiment of the present application;

[0025] Figure 6 A front view of a coating agent storage barrel provided in an embodiment of the present application;

[0026] Figure 7 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0027] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application usually described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, each other embodiment obtained by those skilled in the art without making creative work belongs to the scope of protection of the present application.

[0028] First, the application scenarios to which the present application is applicable are introduced. The present application can be applied to the cleaning of the coating agent delivery pipeline of the coating machine in the perovskite coating process in the photovoltaic industry and the coating process in the liquid crystal panel industry.

[0029] After the coating agent is transported over a long distance in the delivery pipeline, the delivery pipeline needs to be cleaned to prevent the residual coating agent from clogging the pipeline and affecting the delivery function of the delivery pipeline. In the use of the existing coating agent delivery pipeline, it is found that the delivery pipeline is not blocked in time, which consumes manpower and affects the normal use of the coating agent. During cleaning, the staff needs to manually connect the cleaning agent pipeline with the cleaning interface of the coating agent storage bucket, and then return to the control end to issue the corresponding control command to open the valve to transport the cleaning agent to the coating agent delivery pipeline that needs to be cleaned for pipeline cleaning.

[0030] Based on this, an embodiment of the present application provides a coating agent cleaning system and a control method thereof.

[0031] The coating and cleaning system provided in the embodiment of the present application includes at least a master controller, a coating delivery pipeline, a cleaning pipeline, a valve status monitoring module, and at least one valve controller. Figure 1 and Figure 2 , Figure 1 A schematic diagram of the structure of a coating and cleaning system provided in an embodiment of the present application is shown in FIG. Figure 2 This is a schematic diagram of the structure of a coating agent delivery pipeline and a cleaning pipeline provided in an embodiment of the present application. Figure 1 , Figure 2 As shown in , the coating agent delivery pipeline provided in the embodiment of the present application includes one or more pipeline units, and the pipeline unit includes at least a main pipeline section, a secondary pipeline section and a three-way valve. The main pipeline section is used to connect the first interface of the three-way valve and the coating agent output interface, and the secondary pipeline section is used to connect the second interface of the three-way valve and the coating agent output end of a corresponding coating agent storage barrel. The coating agent output interface is used to deliver the coating agent to the nozzle of the coating machine. The cleaning agent output interface of the cleaning pipeline is connected to the third interface of the three-way valve, the cleaning agent input interface of the cleaning pipeline is connected to the output end of the cleaning agent delivery system, and the air source input interface of the cleaning pipeline is connected to the output end of the air source delivery system.

[0032] like Figure 1 As shown, the coating agent delivery pipeline is used to deliver the coating agent in the coating agent storage barrel to the spray head of the coating machine, and each coating agent storage barrel corresponds to a pipeline unit.

[0033] Specifically, the three-way valve here may refer to a valve having three interfaces and capable of closing the third interface when any two interfaces are connected, for example, a three-way ball valve. Figure 1 Taking the middle three-way ball valve RV1 as an example, the first interface A of the target three-way valve is connected to the coating agent output interface through a main pipe section. The coating agent output interface transports the coating agent to the coating agent buffer barrel through the first intermediate pipeline, and then the coating agent in the coating agent buffer barrel is transported to the coating agent nozzle through the second intermediate pipeline by the injection pump.

[0034] The second interface B of the target three-way valve is connected to the coating agent output end of a corresponding coating agent storage barrel through a secondary pipeline section, and the coating agent input end of the coating agent storage barrel is used to connect with the first output interface of the gas source delivery system. The target gas is delivered to the coating agent storage barrel through the gas source delivery system, which can push the coating agent to flow out from the coating agent output end of the coating agent storage barrel and empty the coating agent in the coating agent storage barrel. The third interface C of the target three-way valve is connected to the cleaning agent output interface of the cleaning pipeline, and the cleaning agent input interface of the cleaning pipeline is connected to the output end of the cleaning agent delivery system for obtaining the cleaning agent. The gas source input interface of the cleaning pipeline is connected to the output end of the gas source delivery system for obtaining the target gas to push the cleaning agent to flow out from the third interface. In this way, the target gas and cleaning agent can clean the main pipeline section, the secondary pipeline section and even the coating agent storage barrel at the same time. Figure 6 A front view of a coating agent storage barrel provided in an embodiment of the present application, such as Figure 6 As shown, the coating agent storage barrel is also formed with a waste liquid output interface for discharging excess coating agent or cleaning agent. The waste liquid output interface can be arranged on the bottom or side wall of the coating agent storage barrel.

[0035] Among them, a plurality of valves are arranged in the coating delivery pipeline and / or the cleaning pipeline, and the valves are connected to the corresponding valve controllers. Specifically, a first two-way valve AV1 is arranged between the third interface of each three-way valve and a cleaning agent output interface of the cleaning pipeline, the cleaning agent input interface of the cleaning pipeline is connected to the output end of the cleaning agent delivery system and is provided with a second two-way valve AV2, and the air source input interface of the cleaning pipeline is connected to the output end of the air source delivery system and is provided with a third two-way valve AV3. A fourth two-way valve AV1 is also arranged on each main section. The two-way valve here can be a solenoid valve, and is connected to a corresponding valve controller to control the direction of the fluid in the pipeline.

[0036] Each valve controller is used to control the corresponding valve to change its working state according to the valve control instruction sent by the master controller. The valve controller is also connected to the three-way valve to control the working state of the three-way valve. The number of valve controllers here can be one or more, for example, one valve controller is connected to all valves in a pipeline unit.

[0037] The master controller here is used to generate corresponding valve control instructions according to the received pipeline state information. The pipeline state information here can be the flow rate value of the coating agent collected and sent by the flow rate sensor.

[0038] The output end of the valve state monitoring module is connected to the master controller, and the input end of the valve state monitoring module is connected to each valve controller to obtain valve state information. It can be understood that the valves here will feedback their respective valve state information to the connected valve controllers, and can also feedback to the valve state monitoring module or the master controller.

[0039] In one embodiment of the present application, the coating and cleaning system further includes a first target sensor, a second target sensor and an alarm.

[0040] The first target sensor is arranged inside or outside the coating agent storage barrel, and the first target sensor is connected to the main controller to send the collected first target parameter value to the main controller, and the first target parameter value is used to indicate the usage of the coating agent in the coating agent storage barrel. The first target sensor here can be a weight sensor, or other sensors that meet the usage requirements, such as an optical sensor. Taking the weight sensor as an example, the target parameter value is the weight of the coating agent storage barrel. If the weight of the coating agent storage barrel after cleaning is greater than the weight of the empty barrel, it means that there is residual coating agent or cleaning agent in the coating agent storage barrel, and the cleaning is unqualified and needs to be continued.

[0041] The second target sensor is arranged inside or outside the coating agent storage barrel, and the second target sensor is connected to the main controller to send the collected second target parameter value to the main controller, and the second target parameter value is used to indicate the cleaning condition of the coating agent in the coating agent storage barrel. The second target sensor here can be an optical sensor.

[0042] The alarm is connected to the main controller to execute alarm actions according to the alarm information sent by the main controller.

[0043] In one embodiment of the present application, the coating and cleaning system further includes a cloud module, which is connected to the main controller and is used to upload the collected data received by the main controller to the backend server. The collected data here can be the mass of the coating agent storage barrel, the flow rate value of the main pipe section or the secondary pipe section, the opening value of the valve, etc. The uploaded data here can facilitate the subsequent management and optimization of the coating and cleaning system by the staff.

[0044] In one embodiment of the present application, the coating and cleaning system also includes a cleaning agent supply module and a cleaning power module. The cleaning power module is connected to a valve controller or valve in the control gas source delivery system, and is used to control the target gas to be delivered into the cleaning pipeline or the coating delivery pipeline to complete the delivery or cleaning of the coating agent. The cleaning agent supply module is connected to the corresponding valve controller or valve in the cleaning pipeline, and is used to control the cleaning agent to be input from the cleaning agent storage barrel to the cleaning pipeline through the cleaning agent input interface of the cleaning pipeline, and the cleaning agent and the target gas cooperate to clean the coating delivery pipeline.

[0045] The coating and cleaning system provided in the embodiment of the present application, under constant power (the target gas is CDA (Compressed Air), such as nitrogen, etc.), the coating agent (used to form photoresist) flows along the pipeline, and the opening and closing of each pipeline mechanism is controlled by the solenoid valve. The coating agent enters the coating mold (knife head, nozzle, dropper, etc.) and is pressed out to spray the coating agent evenly onto the substrate.

[0046] For each coating agent storage barrel, when the coating agent in the coating agent storage barrel is confirmed to be exhausted, the next coating agent storage barrel can be switched to supply the coating agent. At this time, the exhausted coating agent storage barrel and the corresponding coating agent delivery pipeline can be cleaned.

[0047] When cleaning the pipeline, under the power of the cleaning agent supply end and the CDA (used for blowing), the cleaning agent enters the main section through the cleaning agent input interface and the third interface of the three-way valve, and finally flows out from the output interface of the coating agent delivery pipeline to complete the pipeline cleaning and blowing action; the cleaning agent can also flow through the secondary pipeline section to the corresponding coating agent storage barrel to complete the pipeline cleaning and cleaning of the coating agent storage barrel.

[0048] In this embodiment, the staff can complete the cleaning by remote control of the control terminal, which reduces the workload. The control principle of the coating and cleaning system is introduced below.

[0049] like Figure 3 As shown, Figure 3 A flow chart of a control method for a coating and cleaning system provided in an embodiment of the present application. A control method for a coating and cleaning system provided in an embodiment of the present application is applicable to a master controller of the coating and cleaning system, including:

[0050] S101. Obtain pipeline status information corresponding to a target pipeline section in a pipeline unit of a coating delivery pipeline, wherein the pipeline status information includes pipeline blockage status information.

[0051] Specifically, a plurality of flow sensors are arranged at preset intervals in the inner wall of the target pipeline section. It should be noted that the coating and cleaning system described in the present application is closely related to the coating system in actual use. When the coating and cleaning system performs a cleaning operation, the coating system generally needs to stop coating. The present application does not make specific limitations on the coordination between the coating and cleaning system and the existing coating system, and is subject to meeting actual use requirements. For example, the pipeline status information may also include whether a coating operation is being performed. The pipeline status information may also include information on the type of liquid used for the current or most recent coating. When the type of liquid used by the coating system is changed, a need to clean the pipeline of the coating system will be generated. At this time, the liquid type information contained in the pipeline status information can be used to determine whether the corresponding target pipeline section needs to be cleaned. Figure 4A flow chart of the steps for determining pipeline status information provided in an embodiment of the present application. Figure 4 As shown, the pipeline status information corresponding to the target pipeline section in the target pipeline unit in the coating and cleaning pipeline is obtained in the following manner:

[0052] S1010, receiving target parameter values ​​collected and fed back by multiple flow sensors corresponding to the target pipeline section.

[0053] S1012. Calculate the mean value between the target parameter values ​​as the average flow velocity value of the target pipeline section.

[0054] By arranging a flow sensor in the main pipe section or the secondary pipe section, the flow rate of the coating agent in the pipe section can be detected.

[0055] S102: Determine whether the target pipeline section needs to be cleaned according to pipeline status information corresponding to the target pipeline section.

[0056] Figure 5 A flow chart of the steps for determining whether a target pipeline section needs to be cleaned is provided in an embodiment of the present application. Figure 5 Specifically, whether the target pipeline section needs to be cleaned is determined in the following manner:

[0057] S1020: Compare the average flow velocity value of the target pipeline section with a preset flow velocity value.

[0058] S1022: If the average flow rate value of the target pipeline section is greater than the preset flow rate value, it is determined that the target pipeline section does not need to be cleaned.

[0059] S1024: If the average flow rate value of the target pipeline section is less than or equal to the preset flow rate value, it is determined that the target pipeline section needs to be cleaned.

[0060] It is understandable that due to the coating agent residue, the coating agent delivery pipeline will cause blockage, which will affect the uniformity and speed of the coating agent sprayed by the coating machine, reducing the working quality and work efficiency of the coating machine, so it is necessary to clean the coating agent delivery pipeline. S103. When it is determined that the pipeline section needs to be cleaned, the mark of the target pipeline section is saved in the to-be-cleaned directory, and the mark includes a first number and a second number, the first number is the number of the pipeline unit corresponding to the pipeline section, and the second number is the number of the connection relationship corresponding to the pipeline section.

[0061] In step S103, by numbering the pipeline units and pipeline sections, the target pipeline section can be quickly located and matched with the corresponding valve controller. The first number here can be numbers or letters arranged in sequence.

[0062] S104. Classify the marks of all pipeline sections saved in the cleaning directory according to the second number in the mark, the pipeline sections include main pipeline sections and secondary pipeline sections, the main pipeline sections can be used to connect the first interface of the three-way valve in the target pipeline unit and the coating agent output interface, the secondary pipeline section can be used to connect the second interface of the three-way valve in each pipeline unit and the coating agent output end of a corresponding coating agent storage bucket.

[0063] The second number here includes a second number for indicating a main pipeline section and a second number for indicating a secondary pipeline section. Exemplarily, the marking here can be 11-X, 2-Y, etc. Among them, 11 represents the 11th pipeline unit, corresponding to the 11th coating agent storage barrel, X represents the main pipeline section, and 11-X represents the main pipeline section in the 11th pipeline unit.

[0064] S105. When the target pipeline unit meets the cleaning condition, the main pipeline section and / or the secondary pipeline section corresponding to the target pipeline unit in the to-be-cleaned catalog is determined to clean the main pipeline section and / or the secondary pipeline section.

[0065] Here, the main pipe sections and the secondary pipe sections are classified in step S104, and all the main pipe sections that need to be cleaned can be cleaned in batches first, and then all the secondary pipe sections can be cleaned, or they can be cleaned simultaneously.

[0066] Here, the target pipeline unit meets the cleaning condition when the coating agent storage bucket corresponding to the target pipeline unit has been emptied and the target pipeline unit has stopped conveying the coating agent, or when the coating machine as a whole stops being used. In actual applications, the staff can choose to clean the pipeline section in a pipeline unit through the system control interface.

[0067] The control method of the coating and cleaning system provided in the embodiment of the present application can automatically monitor each pipeline section, and can promptly detect and clean the blocked pipeline section, thereby ensuring the working quality and working efficiency of the coating machine.

[0068] Specifically, the three-way valve in each pipeline unit is formed with a first interface, a second interface and a third interface, and the third interface is used to connect with a cleaning agent output interface of the cleaning pipeline, and the main pipeline section is cleaned in the following manner:

[0069] Generate and send a first valve control instruction to a first target valve controller corresponding to the main section. The first target valve controller controls the first interface of the corresponding three-way valve to communicate with the third interface according to the received first valve control instruction, and inputs the cleaning agent and the target gas through the third interface to complete the cleaning of the main section.

[0070] And clean the secondary pipe section by:

[0071] Generate and send a second valve control instruction to a second target valve controller corresponding to the secondary pipeline section. The second target valve controller controls the second interface of the corresponding three-way valve to communicate with the third interface according to the received second valve control instruction, and inputs the cleaning agent and the target gas through the third interface to complete the cleaning of the secondary pipeline section.

[0072] The target valve controller here can be matched by the mark of the target pipeline segment. Specifically, a mapping relationship table between the valve controller and the pipeline segment can be established in advance based on the connection relationship between the valve controller and the valve in the pipeline unit. It can be understood that the number of the target valve controller here can be one or more.

[0073] Specifically, a first two-way valve is provided between the third interface of each three-way valve and a cleaning agent output interface of the cleaning pipeline, the cleaning agent input interface of the cleaning pipeline is connected to the output end of the cleaning agent delivery system and is provided with a second two-way valve, and the gas source input interface of the cleaning pipeline is connected to the output end of the gas source delivery system and is provided with a third two-way valve, and the cleaning agent and the target gas are input in the following manner:

[0074] Generate and send a third valve control instruction to a third target valve controller and a fourth control instruction to a fourth target valve controller. The third target valve controller controls the corresponding first two-way valve to be in a conducting state within a first preset time according to the received third valve control instruction. The fourth target valve controller controls the corresponding second two-way valve and the third two-way valve to be in a conducting state within a first preset time according to the received fourth valve control instruction.

[0075] Exemplarily, pipeline section 11-X and pipeline section 12-X can correspond to the same valve controller, and pipeline section 11-X can also correspond to multiple valve controllers, which are used to control the three-way valve, the first two-way valve, the second two-way valve and the third two-way valve in the corresponding pipeline unit respectively.

[0076] Specifically, the valve status information fed back by the valve status monitoring module can also be received, and the valve status information is used to indicate the valve opening value of the corresponding valve. According to the valve opening values ​​of the first two-way valve, the second two-way valve and the third two-way valve received, it is determined whether each valve is opened. If at least one valve is not opened, an alarm message is generated and displayed. For the case where the valve is not fully opened, program adjustments can be made as needed in actual applications, for example, the valve can be controlled by the program to reach a preset valve opening value.

[0077] The valve status monitoring module here is used to determine the opening value of each valve. When the valve opening value is 100%, it is determined that the valve is open. It can also be determined that the valve is open when the valve opening value is greater than 50%. Figure 1 For example, if you want to clean the main section corresponding to the coating machine storage barrel on the left side of the figure, you need to at least determine whether the fourth two-way valve AV4-1, the first two-way valve AV1-1, the second two-way valve AV2 and the third two-way valve AV3 are open. Based on the same inventive concept, the embodiment of the present application also provides a control device for the coating and cleaning system corresponding to the control method of the coating and cleaning system. Since the principle of solving the problem by the device in the embodiment of the present application is similar to the control method of the coating and cleaning system in the embodiment of the present application, the implementation of the device can refer to the implementation of the method, and the repeated parts will not be repeated.

[0078] See also Figure 7 , Figure 7 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. Figure 7 As shown in , the electronic device 500 includes a processor 510 , a memory 520 and a bus 530 .

[0079] The memory 520 stores machine-readable instructions executable by the processor 510. When the electronic device 500 is running, the processor 510 communicates with the memory 520 through the bus 530. When the machine-readable instructions are executed by the processor 510, the steps of the control method of the coating and cleaning system in the above-mentioned method embodiment can be executed. The specific implementation method can be found in the method embodiment, which will not be repeated here.

[0080] An embodiment of the present application also provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the control method of the coating and cleaning system in the above method embodiment can be executed. The specific implementation method can be found in the method embodiment and will not be repeated here.

[0081] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0082] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0083] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0084] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0085] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a non-volatile computer-readable storage medium that is executable by a processor. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store program codes.

[0086] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-mentioned embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-mentioned embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A control method for a coating and cleaning system, characterized in that: The coating delivery pipeline includes one or more pipeline units, and the pipeline unit includes at least a main pipeline section, a secondary pipeline section and a three-way valve, the main pipeline section is used to connect the first interface of the three-way valve and the coating agent output interface, the secondary pipeline section is used to connect the second interface of the three-way valve and the coating agent output end of a corresponding coating agent storage barrel, the coating agent output interface is used to deliver the coating agent to the nozzle of the coating machine, and the third interface of the three-way valve is used to connect with a cleaning agent output interface of the cleaning pipeline, and the method includes: Acquire pipeline status information corresponding to a target pipeline section in a pipeline unit of a coating delivery pipeline, wherein the pipeline status information includes pipeline blockage status information; Determining whether the target pipeline section needs to be cleaned according to the pipeline status information corresponding to the target pipeline section; When it is determined that the target pipeline segment needs to be cleaned, the mark of the target pipeline segment is saved in the to-be-cleaned directory, the mark including a first number and a second number, the first number is the number of the pipeline unit corresponding to the pipeline segment, and the second number is the number of the connection relationship corresponding to the pipeline segment; Classifying the marks of all pipeline sections stored in the to-be-cleaned catalog according to the second number in the mark, the pipeline sections including main pipeline sections and secondary pipeline sections; When the target pipeline unit meets the cleaning condition, the main pipeline section and / or secondary pipeline section corresponding to the target pipeline unit in the to-be-cleaned catalog is determined, so as to clean the main pipeline section and / or secondary pipeline section by controlling the three-way valve corresponding to the target pipeline unit.

2. The method according to claim 1, characterized in that The main pipe section is cleaned by the following methods: Generate and send a first valve control instruction to a first target valve controller corresponding to the main road section; The first target valve controller controls the first interface of the corresponding three-way valve to communicate with the third interface according to the received first valve control instruction, and inputs the cleaning agent and the target gas through the third interface to complete the cleaning of the main pipe section.

3. The method according to claim 1, characterized in that The secondary pipe section is cleaned by: generating and sending a second valve control instruction to a second target valve controller corresponding to the secondary pipeline segment; The second target valve controller controls the second interface of the corresponding three-way valve to communicate with the third interface according to the received second valve control instruction, and inputs the cleaning agent and the target gas through the third interface to complete the cleaning of the secondary pipeline section.

4. The method according to claim 1, characterized in that: A plurality of flow sensors are arranged at preset intervals in the inner wall of the target pipeline section, and pipeline status information corresponding to the target pipeline section in the target pipeline unit in the coating and cleaning pipeline is obtained in the following manner: Receiving target parameter values ​​collected and fed back by multiple flow sensors corresponding to the target pipeline section; The average value between the target parameter values ​​is calculated as the average flow velocity value of the target pipeline section.

5. The method according to claim 4, characterized in that Determine whether the target pipeline section needs to be cleaned by the following methods: Compare the average flow velocity value of the target pipeline section with the preset flow velocity value; If the average flow rate value of the target pipeline section is greater than the preset flow rate value, it is determined that the target pipeline section does not need to be cleaned; If the average flow rate value of the target pipeline section is less than or equal to the preset flow rate value, it is determined that the target pipeline section needs to be cleaned.

6. The method according to claim 2 or 3, characterized in that: A first two-way valve is provided between the third interface of the three-way valve and a cleaning agent output interface of the cleaning pipeline, the cleaning agent input interface of the cleaning pipeline is connected to the output end of the cleaning agent delivery system and is provided with a second two-way valve, the gas source input interface of the cleaning pipeline is connected to the output end of the gas source delivery system and is provided with a third two-way valve, and the cleaning agent and the target gas are input in the following manner: generating and sending a third valve control instruction to a third target valve controller and a fourth control instruction to a fourth target valve controller; The third target valve controller controls the corresponding first two-way valve to be in a conducting state within a first preset time according to the received third valve control instruction; The fourth target valve controller controls the corresponding second two-way valve and the third two-way valve to be in the conducting state within the first preset time according to the received fourth valve control instruction.

7. The method according to claim 6, characterized in that Also includes: Receive valve status information fed back by a valve status monitoring module, wherein the valve status information is used to indicate a valve opening value of a corresponding valve; Determine whether each valve is opened according to the received valve opening values ​​of the first two-way valve, the second two-way valve and the third two-way valve; If at least one valve is not open, an alarm message is generated and displayed.

8. A coating cleaning system, characterized in that: The coating cleaning system includes at least: A master controller, the master controller is used to generate corresponding valve control instructions according to the received pipeline status information, and is used to execute the control method of the coating and cleaning system according to any one of claims 1 to 7; At least one valve controller, the valve controller is used to control the corresponding valve to change the working state according to the valve control instruction sent by the master controller; A coating delivery pipeline, the coating delivery pipeline includes one or more pipeline units, the pipeline unit includes at least a main pipeline section, a secondary pipeline section and a three-way valve, the main pipeline section is used to connect the first interface of the three-way valve and the coating agent output interface, the secondary pipeline section is used to connect the second interface of the three-way valve and the coating agent output end of a corresponding coating agent storage barrel, and the coating agent output interface is used to deliver the coating agent to the nozzle of the coating machine; A cleaning pipeline, wherein the cleaning agent output interface of the cleaning pipeline is connected to the third interface of the three-way valve, the cleaning agent input interface of the cleaning pipeline is connected to the output end of the cleaning agent delivery system, and the gas source input interface of the cleaning pipeline is connected to the output end of the gas source delivery system; A valve status monitoring module, wherein the output end of the valve status monitoring module is connected to the master controller, and the input end of the valve status monitoring module is respectively connected to each valve controller to obtain valve status information; The coating delivery pipeline and / or the cleaning pipeline is also provided with a valve, and the valve is connected to a corresponding valve controller.

9. The coating cleaning system according to claim 8, characterized in that: The coating cleaning system also includes: a first target sensor, the first target sensor being arranged inside or outside the coating agent storage barrel, the first target sensor being connected to the master controller to send a collected first target parameter value to the master controller, the first target parameter value being used to indicate a usage condition of the coating agent in the coating agent storage barrel; a second target sensor, the second target sensor being arranged inside or outside the coating agent storage barrel, the second target sensor being connected to the main controller to send a collected second target parameter value to the main controller, the second target parameter value being used to indicate a cleaning condition of the coating agent in the coating agent storage barrel; An alarm is connected to the main controller to perform an alarm action according to the alarm information sent by the main controller.

10. The coating cleaning system according to claim 9, characterized in that: Also includes: A cloud module is connected to the main controller and is used to upload the collected data received by the main controller to a backend server.

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