Pretreatment spraying control system

Abstract

The utility model provides a pretreatment spraying control system, and belongs to the technical field of spraying control. The pretreatment spraying control system comprises a workpiece scanning module, a main control module, a first switch, a second switch, a first spraying module, a second spraying module, a spraying flow monitoring module, a spraying pressure monitoring module, a spraying flow adjusting device, a first power source and a second power source. The main control module is connected with the workpiece scanning module, the first switch, the second switch, the spraying flow monitoring module, the spraying pressure monitoring module and the spraying flow adjusting device; the first switch is respectively connected with the first spraying module and the first power supply, and the second switch is respectively connected with the second spraying module and the second power supply. The problems that an existing pretreatment spraying technology is not accurate enough in spraying and poor in spraying effect can be solved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of spray control, and particularly to a pretreatment spray control system. Background Art

[0002] The pretreatment spray technology is mainly used to remove impurities and oil stains on the surface of workpieces, providing good surface conditions for subsequent processes such as machining, assembly, and painting. This can improve the appearance quality and service life of products and meet customer requirements. Currently, the pretreatment spray technology is commonly applied in fields such as the automotive manufacturing industry, the home appliance manufacturing industry, and the machinery manufacturing industry.

[0003] However, in the prior art, due to factors such as the spray pressure, angle, distance, and the characteristics of the workpiece itself, the treatment effect on the surface of the workpiece may be uneven, and there is also a problem of nozzle blockage. In summary, the existing pretreatment spray technology still has problems such as inaccurate spraying and poor spraying effect. Summary of the Utility Model

[0004] Embodiments of the present disclosure provide a pretreatment spray control system to solve the problems of inaccurate spraying and poor spraying effect in the existing pretreatment spray technology.

[0005] Embodiments of the present disclosure provide a pretreatment spray control system, including:

[0006] A workpiece scanning module, a main control module, a first switch, a second switch, a first spray module, a second spray module, a spray flow monitoring module, a spray pressure monitoring module, a spray flow regulating device, a first power supply, and a second power supply.

[0007] The main control module is connected to the workpiece scanning module, the first switch, the second switch, the spray flow monitoring module, the spray pressure monitoring module, and the spray flow regulating device.

[0008] The first switch is respectively connected to the first spray module and the first power supply, and the second switch is respectively connected to the second spray module and the second power supply.

[0009] In an exemplary embodiment of the present disclosure, the workpiece scanning module includes:

[0010] A photoelectric sensor.

[0011] The photoelectric sensor is arranged at the workpiece inlet end.

[0012] In an exemplary embodiment of the present disclosure, the spray flow regulating device includes:

[0013] Multiple electric control butterfly valves.

[0014] The multiple electric control butterfly valves are respectively arranged in the first spray module and the second spray module.

[0015] In an exemplary embodiment of the present disclosure, the first spray module includes:

[0016] A plurality of first spray pipes. A plurality of first spray nozzles and electric control butterfly valves are provided on each first spray pipe. The plurality of first spray pipes are respectively arranged on both sides of the workpiece.

[0017] The plurality of first spray pipes are used to connect with a water tank.

[0018] In an exemplary embodiment of the present disclosure, the second spray module includes:

[0019] A plurality of second spray pipes. A plurality of second spray nozzles and electric control butterfly valves are provided on each second spray pipe. The plurality of second spray pipes are respectively arranged on both sides of the workpiece.

[0020] The plurality of second spray pipes are used to connect with a plurality of processing liquid tanks.

[0021] In an exemplary embodiment of the present disclosure, the spray pressure monitoring module includes:

[0022] A plurality of pressure sensors.

[0023] The plurality of pressure sensors are respectively arranged on the plurality of first spray pipes and the plurality of second spray pipes.

[0024] In an exemplary embodiment of the present disclosure, the spray flow monitoring module includes:

[0025] A first flowmeter and a second flowmeter.

[0026] The first flowmeter is arranged in the first main spray pipe. The plurality of first spray pipes include a first main spray pipe and a plurality of first sub-spray pipes.

[0027] The second flowmeter is arranged in the second main spray pipe. The plurality of second spray pipes include a second main spray pipe and a plurality of second sub-spray pipes.

[0028] In an exemplary embodiment of the present disclosure, the first end of the first main spray pipe is connected to a plurality of first sub-spray pipes, and the second end of the first main spray pipe is connected to a plurality of first pumping pipes. A water pump is provided on each first pumping pipe. The plurality of first pumping pipes are used to connect with a water tank.

[0029] The first end of the second main spray pipe is connected to a plurality of second sub-spray pipes, and the second end of the second main spray pipe is connected to a plurality of second pumping pipes. A water pump is provided on each second pumping pipe.

[0030] The plurality of second pumping pipes are used to connect with a plurality of processing liquid tanks.

[0031] In an exemplary embodiment of the present disclosure, a pre-treatment spray control system further includes:

[0032] A feeding reminder module and a communication module.

[0033] Both the feeding reminder module and the communication module are connected to the main control module.

[0034] The main control module is connected to an external monitoring terminal through the communication module.

[0035] The beneficial effects of a pre-treatment spray control system provided by an embodiment of the present disclosure are as follows: Through the workpiece scanning module in the embodiment of the present disclosure, information such as the shape and size of the workpiece can be accurately obtained, providing an accurate data basis for the main control module, thereby realizing more precise spray control. This effectively solves the problem of inaccurate spraying in the prior art, ensures that the treatment liquid can be accurately sprayed onto the parts to be treated, and improves the pertinence and effectiveness of spraying.

[0036] Secondly, the spray flow monitoring module and the spray pressure monitoring module real-time feedback key parameters during the spraying process, enabling the main control module to promptly detect abnormal situations (such as spray nozzle blockage), and then adjust the spray flow regulating device to ensure the stability and consistency of the spray effect. Whether for workpieces of different shapes or in different production environments, a good spray effect can be ensured, improving the pre-treatment quality of the product, laying a solid foundation for subsequent processing procedures, and at the same time reducing the rework rate and production costs caused by poor spray effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0038] Figure 1 is a schematic structural diagram of a pre-treatment spray control system provided by an embodiment of the present disclosure;

[0039] Figure 2 is a schematic structural diagram of another pre-treatment spray control system provided by an embodiment of the present disclosure;

[0040] Figure 3 is a schematic structural diagram of yet another pre-treatment spray control system provided by an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] To enable those skilled in the art to better understand this solution, the following will clearly describe the technical solution in the embodiments of this solution in conjunction with the accompanying drawings in the embodiments of this solution. Obviously, the described embodiments are part of the embodiments of this solution, rather than all of them. Based on the embodiments in this solution, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this solution.

[0042] The terms "including" and any other variations in the description and claims of this solution and the above-mentioned accompanying drawings mean "including but not limited to", intending to cover non-exclusive inclusion and not limited to the examples listed in the text. In addition, terms such as "first" and "second" are used to distinguish different objects, rather than to describe a specific order.

[0043] The following will describe the implementation of this disclosure in detail in conjunction with specific accompanying drawings:

[0044] Figure 1 It is a schematic structural diagram of a pre-treatment spray control system provided for an embodiment of this disclosure. Refer to Figure 1 A pre-treatment spray control system includes:

[0045] A workpiece scanning module 102, a main control module 101, a first switch 103, a second switch 104, a first spray module 105, a second spray module 106, a spray flow monitoring module 107, a spray pressure monitoring module 108, a spray flow regulating device 109, a first power supply 110, and a second power supply 111.

[0046] The main control module 101 is connected to the workpiece scanning module 102, the first switch 103, the second switch 104, the spray flow monitoring module 107, the spray pressure monitoring module 108, and the spray flow regulating device 109.

[0047] The first switch 103 is respectively connected to the first spray module 105 and the first power supply 110, and the second switch 104 is respectively connected to the second spray module 106 and the second power supply 111.

[0048] In this embodiment, the workpiece is a workpiece to be processed. The workpiece scanning module 102 is configured to collect workpiece information. The spray flow regulating device 109 is configured to control the spray flow of the first spray module 105 and the second spray module 106. The spray flow monitoring module 107 is configured to monitor the spray flow of the first spray module 105 and the second spray module 106. The spray pressure monitoring module 108 is configured to monitor the pressure information at the spray nozzle. The main control module 101 is configured to control the working states of the first spray module 105 and the second spray module 106 by controlling the switch states of the first switch 103 and the second switch 104.

[0049] Exemplarily, the workpiece scanning module 102 can adopt devices such as high-precision optoelectronic sensors and laser scanners, and be installed at the position where the workpiece enters the processing area to ensure that the workpiece information can be accurately collected. When a workpiece is detected, the workpiece scanning module 102 collects relevant information of the workpiece, such as the shape, size, material, etc. of the workpiece, and transmits this information to the main control module 101. After receiving the workpiece information, the main control module 101 decides whether to start the first spraying module 105 and the second spraying module 106 according to the preset processing program and the specific situation of the workpiece. If spraying treatment is required, the main control module 101 controls the on-off states of the first switch 103 and the second switch 104 to respectively connect the first power supply 110 and the second power supply 111 to the first spraying module 105 and the second spraying module 106, so that the spraying modules start to work.

[0050] When the first spraying module 105 and the second spraying module 106 are working, they respectively extract liquids from their connected water sources (the first spraying module 105 can be connected to a common water source, such as a water tank. The second spraying module 106 can be connected to a specific treatment liquid tank, such as degreaser, rust remover, cleaning agent, phosphating solution, and passivating agent, etc.) and spray the liquids onto the workpiece through the spray nozzles.

[0051] The spraying flow monitoring module 107 monitors the spraying flows of the first spraying module 105 and the second spraying module 106 in real time, and feeds back the flow data to the main control module 101. If the flow does not match the preset value, the main control module 101 will adjust the spraying flow by controlling the spraying flow regulating device 109 to ensure the best spraying effect.

[0052] The spraying pressure monitoring module 108 is responsible for monitoring the pressure information of the spray nozzles. The size of the pressure will affect the spraying coverage and intensity. The main control module 101 can also maintain an appropriate spraying pressure by adjusting the spraying flow regulating device 109 or other means according to the pressure monitoring data. In addition, when a certain spray nozzle is blocked, the pressure in the spray pipe will increase, and its pressure value is greater than the pressure value under the preset flow. At this time, the main control module 101 combines the flow data and the corresponding pressure data to judge that the pressure value is abnormal, and then triggers the relevant alarm device to send an alarm message to remind the staff to check and clean. At the same time, the spraying flow is appropriately reduced to avoid damage to the spraying device or the workpiece caused by too high a pressure value.

[0053] In this embodiment, the first switch 103 and the second switch 104 can be reliable electromagnetic relays or electronic switches, capable of stably controlling the on / off of the power supply. The first spraying module 105 and the second spraying module 106 include equipment such as spraying pipelines, nozzles, and pumps. The spraying pipelines and nozzles should have good corrosion resistance and wear resistance to adapt to different processing liquids and working environments. The spraying flow rate monitoring module 107 can use a flowmeter, installed on the spraying pipeline to measure the spraying flow rate in real time. The spraying pressure monitoring module 108 can use a pressure sensor, installed near the spraying port to accurately monitor the spraying pressure. The spraying flow rate regulating device 109 can be composed of an electric control valve, a frequency converter, etc., and adjusts the spraying flow rate by receiving instructions from the main control module 101.

[0054] Exemplarily, in the automotive manufacturing industry, this pre-treatment spraying control system can be used for the pre-treatment of body painting. When the vehicle body enters the processing area, the workpiece scanning module 102 quickly acquires the size and shape information of the vehicle body and transmits this information to the main control module 101. The main control module 101 controls the working states of the first spraying module 105 (connected to the clean water tank) and the second spraying module 106 (connected to processing liquid tanks such as degreasing agent and phosphating solution) according to the specific conditions of the vehicle body.

[0055] In the cleaning stage, the first spraying module 105 sprays clean water on the vehicle body at a preset flow rate and pressure to remove dust and impurities on the surface. The spraying flow rate monitoring module 107 and the spraying pressure monitoring module 108 monitor the spraying parameters in real time and feedback the data to the main control module 101. If abnormal flow rate or pressure is found, the main control module 101 adjusts through the spraying flow rate regulating device 109.

[0056] In the subsequent processing stage, the second spraying module 106 sequentially performs treatments such as degreasing and phosphating on the vehicle body according to the process requirements. Similarly, the main control module 101 accurately controls the spraying flow rate and pressure according to the feedback information from the spraying flow rate monitoring module 107 and the spraying pressure monitoring module 108 to ensure that the processing effect reaches the best. Through this pre-treatment spraying control system, efficient and precise processing of the automotive body can be achieved, improving the painting quality and production efficiency.

[0057] Exemplarily, in a metal products processing workshop, there is a spraying production line. Among them, the pre-treatment equipment faces various challenges when processing workpieces of different shapes.

[0058] When processing sheet or mesh workpieces, the existing method of equal and uniform spraying by the spray nozzles on both sides of the guide rail of the pre-treatment equipment can meet the requirements, and all parts of the workpiece can be fully cleaned and processed. However, when encountering box-shaped workpieces, due to the structural characteristics of box-shaped workpieces, the spraying requirements inside and outside are different, and the traditional method may lead to uneven processing.

[0059] One side of the box-shaped workpiece has a relatively heavy oil stain, while the other side has a relatively light oil stain. Through this pre-treatment spraying control system, the workpiece scanning module 102 first collects workpiece information and transmits it to the main control module 101. The main control module 101 controls the second switch 104 to close and the first switch 103 to open according to the shape and oil stain condition of the workpiece, so that the second spraying module 106 works. For the side with a heavy oil stain, more spraying pipes are opened, for example, all spraying pipes are opened, and the spraying flow rate or spraying time of the corresponding pipes is increased, and precise control is carried out through the spraying flow rate regulating device 109. At the same time, the spraying pressure monitoring module 108 monitors the pressure information of the spraying nozzles on this side in real time to ensure that the pressure is appropriate to achieve a better cleaning effect. For the side with a light oil stain, part of the spraying pipes are controlled to open, and the spraying flow rate and pressure are appropriately reduced to avoid over-treatment and waste of the treatment liquid, so as to achieve a more efficient and accurate pre-treatment.

[0060] In this embodiment, the workpiece scanning module 102 can accurately obtain information such as the shape and size of the workpiece, providing an accurate data basis for the main control module 101, so as to achieve more precise spraying control. This effectively solves the problem of inaccurate spraying in the prior art, ensures that the treatment liquid can be accurately sprayed onto the parts to be treated, and improves the pertinence and effectiveness of spraying.

[0061] Secondly, the spraying flow rate monitoring module 107 and the spraying pressure monitoring module 108 timely feedback the key parameters during the spraying process, enabling the main control module 101 to promptly detect abnormal situations (such as blocked spraying nozzles), and then adjust the spraying flow rate regulating device 109 to ensure the stability and consistency of the spraying effect. Whether for workpieces of different shapes or in different production environments, good spraying effects can be ensured, improving the pre-treatment quality of products, laying a solid foundation for subsequent processing procedures, and at the same time reducing the rework rate and production costs caused by poor spraying effects.

[0062] In an embodiment of the present disclosure, the workpiece scanning module 102 includes a photoelectric sensor.

[0063] The photoelectric sensor is arranged at the workpiece inlet end.

[0064] In this embodiment, the photoelectric sensor is configured to collect workpiece information. The photoelectric sensor is arranged at the workpiece inlet end. When the workpiece enters the detection area, it will block the light emitted by the photoelectric sensor. The photoelectric sensor generates corresponding electrical signal changes according to the change of light. This electrical signal is transmitted to the main control module 101, and the main control module 101 thereby determines that a workpiece has entered and prepares to start the subsequent processing process. For example, when there is no workpiece, the photoelectric sensor continuously receives the light emitted by itself and outputs a stable electrical signal. Once a workpiece blocks the light, the electrical signal mutates, thereby triggering the acquisition and processing process of workpiece information.

[0065] Exemplarily, a high-sensitivity opposed or reflective photoelectric sensor can be selected. It is installed on the fixed bracket at the inlet end of the workpiece to ensure stable and reliable operation without affecting the normal entry of the workpiece. The photoelectric sensor is connected to the main control module 101 through a signal line to transmit the detection signal in a timely manner.

[0066] On the automotive parts production line, the photoelectric sensor of the workpiece scanning module 102 is installed at the starting position of the conveying track. When workpieces such as automotive bumpers enter the production line, the photoelectric sensor immediately detects the arrival of the workpiece and transmits the signal to the main control module 101. The main control module 101 then starts the preparation work of the first spraying module 105 and the second spraying module 106, and adjusts the spraying parameters according to information such as the size and material of the bumper to ensure efficient and accurate pre-treatment spraying operation for the workpiece, providing a good basis for subsequent processes such as painting.

[0067] In this embodiment, the workpiece scanning module 102 accurately collects workpiece information through a photoelectric sensor. The photoelectric sensor set at the inlet end of the workpiece can quickly sense the arrival of the workpiece, collect relevant information such as the size of the workpiece and transmit the signal to the main control module 101, triggering the subsequent processing flow. This greatly improves the automation level of the production line, ensures efficient and accurate processing of the workpiece, and provides a solid guarantee for subsequent processes such as painting.

[0068] In an embodiment of the present disclosure, the spraying flow rate regulating device 109 includes a plurality of electrically controlled butterfly valves.

[0069] The plurality of electrically controlled butterfly valves are respectively arranged in the first spraying module 105 and the second spraying module 106.

[0070] In this embodiment, the first spraying module 105 includes:

[0071] A plurality of first spraying pipes. A plurality of first spraying nozzles and electrically controlled butterfly valves are arranged on each first spraying pipe. The plurality of first spraying pipes are respectively arranged on both sides of the workpiece.

[0072] The plurality of first spraying pipes are used to connect to the water tank.

[0073] In this embodiment, the water in the water tank is conveyed to both sides of the workpiece through a plurality of first spray pipes. A plurality of first spray nozzles on each first spray pipe spray water at a certain pressure and angle to perform spray treatment on the workpiece. The electric control butterfly valve plays a role in flow regulation. The main control module 101 sends a control signal to the electric control butterfly valve according to the flow information fed back by the spray flow monitoring module 107 and the specific conditions of the workpiece. The electric control butterfly valve adjusts the flow of water in the pipe by changing the opening degree of the valve, so as to achieve precise control of the spray flow. For example, when it is necessary to increase the spray flow, the electric control butterfly valve is opened wider to allow more water to pass through the pipe. When it is necessary to reduce the spray flow, the electric control butterfly valve is closed smaller to restrict the flow of water. The nozzle apertures and spray angles of the plurality of first spray nozzles can be selected and adjusted according to different workpieces and spray requirements.

[0074] In this embodiment, the second spray module 106 includes:

[0075] A plurality of second spray pipes. A plurality of second spray nozzles and electric control butterfly valves are arranged on each second spray pipe. The plurality of second spray pipes are respectively arranged on both sides of the workpiece.

[0076] The plurality of second spray pipes are used to connect with a plurality of treatment liquid tanks.

[0077] In this embodiment, according to the processing requirements of the workpiece, the main control module 101 judges whether it is necessary to start the second spray module 106. If necessary, it controls the second switch 104 to close and starts the second spray module 106 to extract different treatment liquids from the plurality of treatment liquid tanks and convey them to both sides of the workpiece through the plurality of second spray pipes. At the same time, the main control module 101 selects which second spray pipe to open and the number of opened pipes according to the workpiece size, size and material information collected by the workpiece scanning module 102. An electric control butterfly valve is arranged on each second spray pipe to adjust the flow of the pipe.

[0078] Exemplarily, in a small mechanical workpiece processing workshop, when a small gear workpiece enters the pretreatment area, the workpiece scanning module 102 quickly collects its size, dimensions, and material information and transmits it to the main control module 101. If the gear material is cast iron, it is prone to rusting and has a small size. The main control module 101 selects to open the second spray pipe connected to the rust prevention treatment liquid based on this information. Due to the small size of the workpiece, only two of the second spray pipes are opened to precisely spray the gear, ensuring that the rust prevention liquid is evenly covered while avoiding waste of the treatment liquid, providing good surface conditions for subsequent processing operations, and improving the quality and service life of the workpiece. After the second spray module 106 completes its work, the main control module 101 can selectively control the disconnection of the second switch 104, the closing of the first switch 103, and the opening of the first spray module 105 for water spraying. For example, if the second spray module 106 has just sprayed a cleaning agent, water spraying is required at this time to remove the residual cleaning agent on the surface of the workpiece.

[0079] The electric control butterfly valve plays a key role in flow regulation during this process. The main control module 101 sends a control signal to the electric control butterfly valve according to the preset processing parameters and the real-time monitored workpiece status to adjust the opening of the valve, thereby controlling the flow rate of the treatment liquid. For example, if a certain part of the workpiece requires more treatment liquid, the electric control butterfly valve corresponding to the spray pipe closest to it will be opened wider accordingly to increase the flow rate of the treatment liquid at that part. Conversely, if the treatment liquid at a certain part is already sufficient, the electric control butterfly valve is closed to reduce the flow rate.

[0080] In this embodiment, multiple electric control butterfly valves are respectively arranged in the first spray module 105 and the second spray module 106, realizing precise control of the spray flow rate. In the first spray module 105, the electric control butterfly valve adjusts the water flow rate to ensure uniform spraying on both sides of the workpiece and improve the spraying effect. In the second spray module 106, according to the specific requirements of the workpiece, the second spray pipe is selectively opened and the opening of the electric control butterfly valve is adjusted to precisely control the flow rate of the treatment liquid, improving the utilization efficiency of the treatment liquid. This adjustment method not only reduces the waste of water resources and treatment liquid, but also improves the quality and efficiency of workpiece processing, providing good surface conditions for subsequent processing operations.

[0081] In an embodiment of the present disclosure, the spray pressure monitoring module 108 includes multiple pressure sensors.

[0082] The multiple pressure sensors are respectively arranged on multiple first spray pipes and multiple second spray pipes.

[0083] In this embodiment, pressure sensors are respectively installed in each first spray pipe and each second spray pipe to monitor the spray pressure in the pipes in real time. When the spray system works, water or treatment liquid flows in the pipes and is ejected through the spray nozzles, and a certain pressure will be generated during this process. The pressure sensors convert the sensed pressure values into electrical signals and transmit them to the main control module 101. The main control module 101 determines whether the spray pressure meets the preset requirements according to the received pressure signals. If the pressure is too high or too low, the main control module 101 will take corresponding measures to adjust, such as adjusting the output power of the pump, controlling the opening degree of the electric control butterfly valve, etc., to adjust the spray pressure to ensure the stability and consistency of the spray effect.

[0084] Exemplarily, in a machining workshop, pre-treatment spraying is performed on various mechanical workpieces. For example, when processing a small engine cylinder block, multiple pressure sensors are respectively installed in multiple first spray pipes (connected to the clean water tank) and multiple second spray pipes (connected to the anti-rust treatment liquid tank). After the workpiece scanning module 102 acquires the cylinder block information, the spraying work is started. The pressure sensors monitor the spray pressure in the pipes in real time. At the same time, the spray flow monitoring module 107 monitors the flow information of the first spray module 105 or the second spray module 106 in real time. Combining the number of opened spray pipes, the main control module 101 can calculate the pressure threshold corresponding to each spray pipe. If the pressure in the corresponding spray pipe is higher than this pressure threshold, it may cause damage to the cylinder block. It can be inferred that a certain spray nozzle in this pipe is blocked, and an alarm is given in time. If the pressure is too low, the treatment liquid cannot cover evenly. The main control module 101 adjusts the spray flow regulating device 109 according to the data fed back by the pressure sensors and the spray flow monitoring module 107 to ensure that the spray pressure is appropriate and improve the treatment effect. For example, if the pressure in the corresponding spray pipe is higher than this pressure threshold, the flow can be reduced, or this spray pipe can be closed and another idle spray pipe can be opened to ensure that the pipe pressure is appropriate to avoid damage to the pipe or the workpiece.

[0085] Exemplarily, parts such as watch movement parts and micro bearings usually have extremely small sizes, fine and complex structures, and extremely high precision requirements. If the spray pressure is too high, the parts may be deformed or misaligned, affecting their mating precision and working performance. Excessive spray flow rate may cause the parts to be washed away or excessive impact force to be formed on the surface of the parts, damaging their surface treatment or tiny structural features. Thin-walled workpieces such as thin-walled pipe fittings and thin-walled aluminum alloy shells have relatively low strength and limited ability to withstand external forces. If the spray pressure is too high, it is easy for the thin-walled parts to be dented, deformed or even cracked. And excessive spray flow rate may generate unstable impact force on the thin-walled workpiece, causing it to shake or shift, increasing the risk of collision damage. Materials such as ceramic mechanical seals and mechanical parts made of certain special glasses are relatively brittle and sensitive to external stress. Excessive spray pressure will directly cause them to crack or break. Even when the spray flow rate is large but the pressure is relatively gentle, it may also cause cracks in the brittle workpieces due to uneven impact of the water flow, thus damaging the workpieces.

[0086] In this embodiment, by adopting the spray pressure monitoring module 108, real-time and accurate monitoring of the pressures of each pipeline in the spray system is realized. This not only ensures the stability and consistency of the spray operation, but also greatly improves the processing effect. Especially in the process of processing precision workpieces or thin-walled and brittle materials, the pressure monitoring module can effectively avoid workpiece damage caused by too high or too low spray pressure, significantly improving the production efficiency and product quality. In addition, this module also has an intelligent adjustment function, which can automatically adjust the spray pressure according to real-time data, further ensuring the smooth progress of the spray operation.

[0087] As Figure 2 shown, in an embodiment of the present disclosure, the spray flow rate monitoring module 107 includes:

[0088] A first flowmeter 112 and a second flowmeter 113.

[0089] The first flowmeter 112 is arranged in the first main spray pipeline. The plurality of first spray pipelines include a first main spray pipeline and a plurality of first sub-spray pipelines.

[0090] The second flowmeter 113 is arranged in the second main spray pipeline. The plurality of second spray pipelines include a second main spray pipeline and a plurality of second sub-spray pipelines.

[0091] In this embodiment, for the first spray pipeline module, when water flows from the water tank through the first main spray pipeline to the plurality of first sub-spray pipelines, the first flowmeter 112 is arranged in the first main spray pipeline. It determines the flow rate by measuring the change of the fluid volume or mass flowing through the pipeline over time. The first flowmeter 112 transmits the detected flow rate data to the main control module 101, and the main control module 101 can understand the total flow rate situation of the entire first spray pipeline module based on this data.

[0092] For the second spray pipe module, similarly, the second flowmeter 113 is arranged in the second main spray pipe to monitor the total flow rate of the processing liquid in the module composed of multiple second sub-spray pipes. When the processing liquid is distributed from multiple processing liquid tanks to multiple second sub-spray pipes through the second main spray pipe, the second flowmeter 113 measures and feeds back the flow rate information to the main control module 101 in real time.

[0093] Exemplarily, the first flowmeter 112 and the second flowmeter 113 can be electromagnetic flowmeters, turbine flowmeters, etc. In the cleaning process of a machining workshop, there are various mechanical workpieces with different materials and shapes that need to be cleaned and processed. When a large cast iron mechanical part enters the cleaning area, the main control module 101 starts the first spray module 105 to spray clean water according to the information collected by the workpiece scanning module 102. The first flowmeter 112 monitors the clean water flow rate in the first main spray pipe in real time. If it is found that the flow rate is too low, it may be that the water tank level is insufficient, and the main control module 101 can issue an alarm in time to remind the staff to check and handle it. At the same time, when special treatment is required for the workpiece, the second spray module 106 is started, and the second flowmeter 113 monitors the flow rate of the processing liquid. If it is found that the flow rate is too low, it may be that the pipeline is blocked, and the main control module 101 can issue an alarm in time to remind the staff to check and handle it, ensuring that the usage amount and spraying effect of the processing liquid meet the requirements, so as to guarantee the cleaning and processing quality of the mechanical workpiece.

[0094] In an embodiment of the present disclosure, the first end of the first main spray pipe is connected to multiple first sub-spray pipes, and the second end of the first main spray pipe is connected to multiple first pumping pipes. A water pump is arranged on each first pumping pipe. The multiple first pumping pipes are used to connect to the water tank.

[0095] The first end of the second main spray pipe is connected to multiple second sub-spray pipes, and the second end of the second main spray pipe is connected to multiple second pumping pipes. A water pump is arranged on each second pumping pipe.

[0096] The multiple second pumping pipes are used to connect to multiple processing liquid tanks.

[0097] In this embodiment, for the first spray pipe module, when clean water spraying is required, multiple water pumps pump water from the water tank through the first pumping pipes. Each water pump works independently to provide stable water flow pressure for the first main spray pipe. The first main spray pipe then distributes the water to multiple first sub-spray pipes, and finally sprays out through each first spray nozzle to spray clean water on the workpiece.

[0098] For the second spray pipe module, when it is necessary to use the processing liquid for spraying, multiple water pumps draw the processing liquid from multiple processing liquid tanks through the second pumping pipe. Similarly, each water pump provides a specific pressure for the second main spray pipe, enabling the processing liquid to smoothly pass through the second main spray pipe and be distributed to multiple second sub-spray pipes, and then sprayed by the second spray nozzles onto the workpiece.

[0099] Exemplarily, when a large steel structure workpiece needs to be cleaned and rust-proofed, the main control module 101 activates the first spray module 105 and the second spray module 106. Multiple water pumps draw water from the water tank and the processing liquid tanks. For the clear water spraying part, the water pumps draw water into the first main spray pipe and then distribute it to each first sub-spray pipe to comprehensively clean the workpiece and remove dust and impurities on the surface. Then, the rust-proof treatment liquid is drawn by the water pumps of the second spray module 106 to perform rust-proof treatment on the workpiece. According to different parts and processing requirements of the workpiece, the main control module 101 can adjust the working states of each water pump to ensure uniform and efficient spraying effects, improving the quality and service life of the workpiece.

[0100] Exemplarily, as Figure 3 shown, component 1 is the pretreatment shed body, component 2 is the main spray pipe, components 3 and 4 are the sub-spray pipes, components 3-1 and 4-1 are the flow meters, and components 3-2 and 4-2 are the electric control butterfly valves. When the photoelectric sensor arranged at the workpiece inlet end detects the workpiece, it will scan the workpiece and transmit the scanned signal to the main control module 101. The main control module 101 judges the shape of the workpiece, and then the main control module 101 sends a signal to control components 3-2 and 4-2 on components 3 and 4 on both sides of the workpiece to control the flow rates of components 3 and 4 on both sides of the workpiece, while signals are sent by the flow meters components 3-1 and 4-1 on components 3 and 4 on both sides for feedback to the controller. This invention realizes the automation and intelligence of spraying for different workpieces. The precise control of the spray amounts on both sides of the workpiece improves the quality of workpiece pretreatment and further improves the spraying quality of the workpiece.

[0101] In this embodiment, by designing a double-pipe spray system for clear water spraying and processing liquid spraying respectively, the flexibility and efficiency of spraying are effectively improved. The independent setting of the water pumps ensures the stability and adjustability of the water flow pressure, making the spraying process more uniform and efficient, thereby improving the quality of workpiece cleaning and processing.

[0102] As Figure 2 shown, in an embodiment of the present disclosure, a pretreatment spray control system further includes:

[0103] A replenishment reminder module 114 and a communication module 115.

[0104] Both the replenishment reminder module 114 and the communication module 115 are connected to the main control module 101.

[0105] The main control module 101 is connected to an external monitoring terminal through the communication module 115.

[0106] In this embodiment, the feeding reminder module 114 continuously monitors key parameters such as the liquid levels in the processing liquid tank and the water tank and the concentration of the processing liquid. When the liquid level is lower than the preset value or the concentration of the processing liquid does not meet the requirements, the feeding reminder module 114 sends a signal to the main control module 101. After receiving the feeding reminder signal, on the one hand, the main control module 101 can immediately adjust the working state of the spraying module, such as reducing the flow rate or pausing the operation of the spraying module, to avoid affecting the processing effect due to insufficient materials. On the other hand, the main control module 101 sends the feeding information to the external monitoring terminal through the communication module 115. The external monitoring terminal can be devices such as a computer or a mobile phone, and the staff can receive the feeding reminder information in real time through the monitoring terminal and perform the operation of supplementing the processing liquid or water in a timely manner. The feeding reminder module 114 can also include an indicator light and an alarm to give real-time alarms so that the on-site staff can receive the message in a timely manner.

[0107] Exemplarily, the feeding reminder module 114 can be composed of a liquid level sensor, a concentration sensor, etc. In the pre-treatment spraying system of an electronic manufacturing workshop, when the cleaning liquid in the processing liquid tank has a decreased liquid level due to long-term use, the liquid level sensor of the feeding reminder module 114 detects this situation and sends a signal to the main control module 101. The main control module 101 immediately adjusts the spraying flow rate and at the same time sends the feeding information to the mobile phone of the workshop management staff through the communication module 115. After receiving the reminder, the management staff arranges personnel to supplement the cleaning liquid in a timely manner. This can ensure the continuous and stable operation of the spraying system, avoid affecting the cleaning quality of electronic components due to insufficient processing liquid, and improve production efficiency and product quality.

[0108] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications 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 disclosure.

Claims

1. A pre-treatment spray control system, characterized in that: include: Workpiece scanning module, main control module, first switch, second switch, first spray module, second spray module, spray flow monitoring module, spray pressure monitoring module, spray flow regulating device, first power supply and second power supply; The main control module is connected to the workpiece scanning module, the first switch, the second switch, the spray flow monitoring module, the spray pressure monitoring module and the spray flow regulating device; The first switch is connected to the first spray module and the first power supply respectively, and the second switch is connected to the second spray module and the second power supply respectively.

2. A pre-treatment spray control system as claimed in claim 1, characterized in that: The workpiece scanning module comprises: Photoelectric sensors; The photoelectric sensor is arranged at the inlet end of the workpiece.

3. A pre-treatment spray control system as claimed in claim 1, characterized in that: The spray flow regulating device comprises: Multiple electrically controlled butterfly valves; The plurality of electrically controlled butterfly valves are respectively arranged in the first spray module and the second spray module.

4. A pre-treatment spray control system as claimed in claim 3, characterized in that: The first spray module comprises: A plurality of first spray pipes; each of the first spray pipes is provided with a plurality of first spray nozzles and an electrically controlled butterfly valve; the plurality of first spray pipes are respectively provided on both sides of the workpiece; The plurality of first spray pipes are used to be connected to a water tank.

5. A pre-treatment spray control system as claimed in claim 4, characterized in that: The second spray module comprises: A plurality of second spray pipes; each second spray pipe is provided with a plurality of second spray nozzles and an electric-controlled butterfly valve; the plurality of second spray pipes are respectively provided on both sides of the workpiece; The plurality of second spray pipes are used to be connected to a plurality of treatment liquid tanks.

6. A pre-treatment spray control system as claimed in claim 5, characterized in that: The spray pressure monitoring module comprises: Multiple pressure sensors; The plurality of pressure sensors are respectively disposed on the plurality of first spray pipes and the plurality of second spray pipes.

7. A pre-treatment spray control system as claimed in claim 5, characterized in that: The spray flow monitoring module comprises: a first flow meter and a second flow meter; The first flow meter is arranged in the first main spray pipe; the plurality of first spray pipes include a first main spray pipe and a plurality of first branch spray pipes; The second flow meter is arranged in the second main spray pipe; the plurality of second spray pipes include a second main spray pipe and a plurality of second branch spray pipes.

8. A pre-treatment spray control system as claimed in claim 7, characterized in that: The first end of the first main spray pipe is connected to a plurality of first sub-spray pipes, and the second end of the first main spray pipe is connected to a plurality of first pumping pipes; each first pumping pipe is provided with a water pump; the plurality of first pumping pipes are used to be connected to the water tank; The first end of the second main spray pipe is connected to a plurality of second branch spray pipes, and the second end of the second main spray pipe is connected to a plurality of second pumping pipes; each second pumping pipe is provided with a water pump; The plurality of second water pumping pipes are used to be connected to the plurality of treatment liquid tanks.

9. A pre-treatment spray control system as claimed in claim 1, characterized in that: Also includes: Feeding reminder module and communication module; The feeding reminder module and the communication module are both connected to the main control module; The main control module is connected to an external monitoring terminal through the communication module.

Images