Automatic paint spraying conveying system

Abstract

The invention relates to an automatic paint spraying conveying system which comprises a water paint bucket, a first conveying pump, a conveying pipeline and a spraying device which are connected in sequence. The first end of the transmission pipeline is connected with a nitrogen supply device through a first control valve; a second control valve is arranged at the second end of the transmission pipeline; a third control valve is further arranged between the second control valve and the spraying device, and the third control valve is connected with the curing agent barrel through a second conveying pump; an information acquisition device is arranged in the transmission pipeline; after receiving a water paint conveying instruction, the controller controls the first control valve and the second control valve to be closed and controls the first conveying pump, the third control valve and the second conveying pump to be opened; the controller is used for controlling the first conveying pump, the second conveying pump and the third control valve to be closed after receiving a cleaning instruction and controlling opening and closing of the nitrogen supply device, the first control valve and the second control valve based on the humidity collected by the information collection device.

Description

Technical Field

[0001] The invention relates to the technical field of automatic control, and in particular to an automatic paint spraying and conveying system. Background Art

[0002] In modern spraying processes, especially in the coatings industry, the use of automated spray painting systems is becoming more and more common. The automation of the spray painting process not only improves production efficiency, but also ensures the uniformity and quality of the coating. Traditional spray painting systems usually require manual operation and manual control, which can lead to unstable operation, low production efficiency and high labor costs. In order to solve these problems, an automated spray painting delivery system has been proposed, which combines liquid delivery technology, automatic control technology and sensor technology to achieve an efficient and accurate spray painting process.

[0003] However, in the existing paint spraying system, the pipeline cannot be cleaned and dried after the spraying is completed, which will affect the concentration of water paint when the paint spraying system is used next time, thereby affecting the spraying effect. Summary of the invention

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an automatic paint spraying and conveying system.

[0005] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0006] An embodiment of the present invention provides an automated paint spraying and conveying system, the system comprising: a water paint bucket for storing water paint, a first conveying pump for extracting water paint from the water paint bucket into a conveying pipeline, a conveying pipeline, and a spraying device connected in sequence;

[0007] Wherein, the first end of the transmission pipeline is connected to the nitrogen supply device through a first control valve; the second end of the transmission pipeline is also provided with a second control valve; the first end of the transmission pipeline is the connection end between the transmission pipeline and the first delivery pump; the second end of the transmission pipeline is the connection end between the transmission pipeline and the spraying device;

[0008] A third control valve is also provided between the second control valve and the spraying device, and the third control valve is connected to the curing agent barrel through the second delivery pump; an information collection device is also provided inside the transmission pipeline for collecting the humidity, pressure, and flow rate of water paint and curing agent in the transmission pipeline;

[0009] The information collection device includes: a pressure sensor, a humidity sensor and a flow meter;

[0010] The first delivery pump, the nitrogen supply device, the first control valve, the second control valve, the information collection device, the third control valve and the second delivery pump are all connected to the controller. The controller is used to control the first control valve and the second control valve to close and the first delivery pump to open after receiving the water paint delivery instruction, so that the first delivery pump extracts the water paint in the water paint bucket and delivers the water paint to the spraying device through the transmission pipeline, and controls the third control valve and the second delivery pump to open, so that the second delivery pump extracts the curing agent in the curing agent bucket and delivers the water paint to the spraying device through the transmission pipeline; or, the controller is used to control the first delivery pump, the second delivery pump and the third control valve to close respectively after receiving the cleaning instruction, and based on the humidity collected by the information collection device, respectively control the switches of the nitrogen supply device, the first control valve and the second control valve used to provide high-pressure nitrogen.

[0011] Preferably,

[0012] The inner wall of the transmission pipeline is provided with a hydrophobic coating;

[0013] The material of the hydrophobic coating is one of polytetrafluoroethylene, silicone resin, fluorine-containing polymer and nano material.

[0014] Preferably,

[0015] After receiving the cleaning instruction, the controller controls the switches of the nitrogen supply device for providing high-pressure nitrogen, the first control valve, and the second control valve respectively based on the humidity collected by the information collection device, specifically including:

[0016] When the humidity collected by the information collection device is greater than a first preset humidity value, the controller controls the first control valve and the second control valve to open, and controls the nitrogen supply device to open to provide high-pressure nitrogen, and sprays and flushes the inner wall of the transmission pipeline through the first control valve until the humidity in the transmission pipeline is less than the second preset humidity value and the moisture removal rate is less than a preset threshold value;

[0017] Wherein, the moisture removal rate is calculated using formula (1);

[0018] The formula (1) is:

[0019]

[0020] Where, F is the water removal rate;

[0021] Q is the nitrogen flow rate;

[0022] T is the nitrogen injection flushing time;

[0023] V is the volume of water in the transmission pipe when the cleaning command is received;

[0024] ΔH is the latent heat of water evaporation;

[0025] P is the pressure in the transmission pipeline;

[0026] α is a pre-set coefficient;

[0027] exp() is the natural exponential function.

[0028] Preferably,

[0029] When the cleaning instruction is received, the volume V of water in the transmission pipeline is calculated by formula (2);

[0030] The formula (2) is:

[0031]

[0032] ε is the humidity in the pipe;

[0033] V p is the volume of the pipeline;

[0034] M water is the molar mass of water;

[0035] ρ water is the density of water.

[0036] Preferably,

[0037] The transmission pipe is also wrapped with an electric belt outside, and the electric belt is connected to the controller;

[0038] The controller is also used to control the electric belt to heat to a preset first target temperature after receiving a water paint delivery instruction; or, the controller is also used to control the electric belt to heat to a preset second target temperature after receiving a water paint cleaning instruction.

[0039] Preferably,

[0040] The preset first target temperature is: a pre-acquired spraying temperature corresponding to the water paint in the water paint bucket;

[0041] The preset second target temperature is greater than or equal to the first specified temperature value;

[0042] Wherein, the viscosity of the water paint at the first specified temperature value is less than or equal to a preset viscosity value;

[0043] The viscosity of the water paint at the first specified temperature value is calculated by formula (3);

[0044] The formula (3) is:

[0045]

[0046] δ(T0) is the viscosity of the water paint at the first specified temperature value T0;

[0047] μ is a preset constant;

[0048] R is the gas constant;

[0049] E a is the activation energy;

[0050] T ref is a preset reference temperature;

[0051] T0 is the first specified temperature value.

[0052] Preferably,

[0053] The transmission pipeline is fixed by a pipeline support, and a vibration absorber is also arranged on the pipeline support.

[0054] Preferably,

[0055] The controller is further used to control the output power value of the first delivery pump based on the pressure collected by the information collection device and a pre-acquired pressure threshold.

[0056] Preferably,

[0057] The spraying device comprises: a robot arm and a spray gun;

[0058] The spray gun is arranged on the robot arm and connected to the transmission pipeline;

[0059] The robot arm and the spray gun are respectively connected to the controller, and the controller is used to control the spraying device to spray the components to be sprayed on the painting platform according to a preset path.

[0060] Preferably,

[0061] Anti-flow paint plates are arranged around the painting platform;

[0062] Among them, the distance between the anti-flow paint plate and the paint spraying platform is greater than or equal to 30 cm and less than 100 cm; the anti-flow paint plate is a galvanized plate or SUS201 stainless steel plate of specified thickness.

[0063] The beneficial effects of the present invention are:

[0064] In an automated paint spraying and conveying system of the present invention, the controller controls the nitrogen supply device and the switch of the valve according to the humidity data collected by the information collection device to clean and dry the pipeline. This reduces the need for manual cleaning, improves the maintenance efficiency of the system, and reduces the impact of the cleaning process on the spraying quality.

[0065] The automatic paint delivery system of the present invention automatically manages the delivery process of water paint and curing agent through a controller. The user can issue instructions through the controller, and the system will automatically open or close various valves and pumps to ensure that the water paint and curing agent are delivered to the spraying device in a predetermined ratio and sequence. This reduces manual operation and improves the automation level of the system and the consistency of the spraying process.

[0066] The automatic paint spraying and conveying system of the present invention is equipped with an information collection device for real-time monitoring of the humidity pressure in the transmission pipeline and the flow of water paint and curing agent. These data help to ensure the stability of liquid delivery, and can adjust system parameters in time to deal with possible abnormal situations, thereby improving the reliability of the system and the spraying effect.

[0067] The present invention discloses an automatic paint spraying delivery system, which includes a plurality of delivery pumps and valves, and can efficiently deliver water paint and curing agent from a storage barrel to a spraying device, and mix them before spraying. By controlling the switch of a first delivery pump and a second delivery pump, and controlling the opening and closing of the valve, the system can accurately adjust the flow of water paint and curing agent, and ensure the uniformity and quality of the spraying liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Figure 1 It is a structural schematic diagram of an automatic paint spraying and conveying system of the present invention;

[0069] Figure 2 The figure is a connection diagram of a controller in an automatic paint spraying and conveying system of the present invention.

[0070] Description of Reference Numerals

[0071] 1: Water paint bucket;

[0072] 2: The first delivery pump;

[0073] 3: Transportation pipeline;

[0074] 4: Spraying device;

[0075] 5: First control valve;

[0076] 6: Second control valve;

[0077] 7: Nitrogen supply device;

[0078] 8: The third control valve;

[0079] 9: The second delivery pump;

[0080] 10: Curing agent barrel;

[0081] 11: Information collection device. DETAILED DESCRIPTION

[0082] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0083] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0084] See also Figure 1 , this embodiment provides an automated paint spraying and conveying system, the system comprising: a water paint bucket for storing water paint, a first conveying pump for extracting the water paint in the water paint bucket into a conveying pipeline, a conveying pipeline, and a spraying device connected in sequence;

[0085] In this embodiment, the water paint bucket, the first delivery pump, the transmission pipeline and the spraying device are connected in sequence. This structure ensures the fluidity and stability of the water paint, can accurately control the entire process of water paint from storage to spraying, and effectively reduce the residue and waste of water paint in the pipeline.

[0086] Wherein, the first end of the transmission pipeline is connected to the nitrogen supply device through a first control valve; the second end of the transmission pipeline is also provided with a second control valve; the first end of the transmission pipeline is the connection end between the transmission pipeline and the first delivery pump; the second end of the transmission pipeline is the connection end between the transmission pipeline and the spraying device;

[0087] A third control valve is also provided between the second control valve and the spraying device, and the third control valve is connected to the curing agent barrel through the second delivery pump; an information collection device is also provided inside the transmission pipeline for collecting the humidity, pressure and flow rate of the water paint and curing agent in the transmission pipeline;

[0088] The information collection device includes: a pressure sensor, a humidity sensor and a flow meter;

[0089] See also Figure 2In this embodiment, the first delivery pump, the nitrogen supply device, the first control valve, the second control valve, the information collection device, the third control valve and the second delivery pump are all connected to the controller. The controller is used to control the first control valve and the second control valve to close and control the first delivery pump to open after receiving the water paint delivery instruction, so that the first delivery pump extracts the water paint in the water paint bucket and delivers the water paint to the spraying device through the transmission pipeline, and controls the third control valve and the second delivery pump to open, so that the second delivery pump extracts the curing agent in the curing agent bucket and delivers the water paint to the spraying device through the transmission pipeline; or, the controller is used to control the first delivery pump, the second delivery pump and the third control valve to close respectively after receiving the cleaning instruction, and based on the humidity collected by the information collection device, respectively control the switches of the nitrogen supply device, the first control valve and the second control valve for providing high-pressure nitrogen.

[0090] In this embodiment, the first control valve is connected to the nitrogen supply device so that during cleaning or purging, the nitrogen supply can directly enter the transmission pipeline through the first control valve, and utilize the inertness and dry properties of nitrogen to prevent water paint from remaining in the pipeline, thereby avoiding pipeline blockage and deterioration of water paint.

[0091] In addition, in this embodiment, the third control valve between the second control valve and the spraying device and the connection between the second delivery pump and the curing agent barrel can automatically mix the curing agent while delivering the water paint, ensuring the consistency of the spraying quality, reducing errors caused by manual operation, and improving production efficiency.

[0092] In this embodiment, the information collection device (used to collect humidity, pressure, and the flow of water paint and curing agent) can monitor the humidity and pressure data inside the transmission pipeline and the flow of water paint and curing agent in the transmission pipeline in real time to ensure that the system operates in the best state. Based on these data, the system can automatically adjust the working parameters, such as nitrogen purge intensity and time, to ensure dryness and pressure stability in the pipeline. The automatic control function of the controller reduces human operation errors and improves the accuracy and efficiency of the system. Both the delivery of water paint and the cleaning of the system can be accurately managed by the controller to optimize the operation process.

[0093] It should be noted that the information collection device in this embodiment includes: a pressure sensor, a humidity sensor and a flow meter, wherein the pressure sensor is used to monitor the pressure changes inside the transmission pipeline in real time. The humidity sensor is responsible for detecting the humidity level inside the transmission pipeline. It senses the changes in humidity to monitor and adjust data. The flow meter is used to measure the flow of water paint and curing agent in the transmission pipeline. It can calculate the flow rate and flow of the fluid through different technologies (such as ultrasound, magnetic induction, etc.) to ensure that the flow meets the predetermined requirements.

[0094] Preferably, the inner wall of the transmission pipe in this embodiment is provided with a hydrophobic coating;

[0095] The material of the hydrophobic coating is one of polytetrafluoroethylene, silicone resin, fluorine-containing polymer and nano material.

[0096] The hydrophobic coating can effectively prevent water paint from adhering to the inner wall of the pipe, reduce water paint residue, reduce the difficulty and frequency of cleaning, extend the service life of the pipe, and improve the quality of spraying.

[0097] The materials of the hydrophobic coating (polytetrafluoroethylene, silicone resin, fluorinated polymers, nanomaterials) have excellent hydrophobicity and chemical stability, and can maintain efficient anti-adhesion effects in various complex spraying environments, reduce maintenance requirements and production downtime, and further improve production efficiency and quality.

[0098] In the practical application of this embodiment, after receiving the cleaning instruction, the controller controls the switches of the nitrogen supply device for providing high-pressure nitrogen, the first control valve, and the second control valve based on the humidity collected by the information collection device, specifically including:

[0099] When the humidity collected by the information collection device is greater than a first preset humidity value, the controller controls the first control valve and the second control valve to open, and controls the nitrogen supply device to open to provide high-pressure nitrogen, and sprays and flushes the inner wall of the transmission pipeline through the first control valve until the humidity in the transmission pipeline is less than the second preset humidity value and the moisture removal rate is less than a preset threshold value;

[0100] In this embodiment, the automatic paint spraying and conveying system automatically triggers the cleaning process according to the humidity data collected in real time. When the humidity exceeds the set value, the automatic paint spraying and conveying system will immediately start the cleaning program without manual intervention. This automated response mechanism improves the system's adaptability and operating efficiency, and avoids spraying quality problems caused by excessive humidity. Using high-pressure nitrogen for spray flushing can quickly and efficiently remove moisture from the pipeline and ensure the dryness of the inner wall of the pipeline. Nitrogen is inert and will not react with water paint or introduce new pollutants, thereby ensuring the purity and consistency of the spraying process. By setting the first preset humidity value and the second preset humidity value, the automatic paint spraying and conveying system can accurately control the start and end conditions of the cleaning process. Ensure that cleaning stops automatically after the humidity drops to the ideal range, avoid excessive cleaning, and improve the utilization efficiency of energy and resources. In addition to humidity, a judgment standard for moisture removal rate is also introduced to ensure that the humidity in the pipeline is not only reduced to a safe range, but also to ensure the stability of humidity changes. This multiple monitoring standard can effectively prevent the influence of residual moisture on the subsequent spraying process, thereby ensuring the quality of spraying.

[0101] Wherein, the moisture removal rate is calculated using formula (1);

[0102] The formula (1) is:

[0103]

[0104] Where, F is the water removal rate (unit: %); Q is the nitrogen flow rate (unit: m 3 / s); T is the nitrogen injection flushing time (unit: s); V is the volume of water in the transmission pipeline when the cleaning instruction is received (unit: m 3 );

[0105] △H is the latent heat of water evaporation (unit: J / kg or J / mol), which is the energy required to convert water from liquid to gas. The greater the latent heat of evaporation, the more energy is required to convert water into water vapor, and the more energy is required by the gas to remove water. The latent heat of water evaporation ΔH is inversely proportional to the water removal rate, indicating that the greater the energy required for water evaporation, the lower the efficiency of the gas in removing water. P is the pressure in the transmission pipeline (unit: Pa); P reflects the pressure in the pipeline. The greater the pressure, the greater the force of the gas on the water, and the more effectively the water can be removed from the pipeline. In formula (1), the pressure P is proportional to the nitrogen flow rate and the nitrogen injection flushing time, indicating that the pressure has a direct promoting effect on the water removal rate.

[0106] α is a pre-set coefficient (dimensionless);

[0107] exp() is a natural exponential function (the base of the exponential function is e). Formula (1) in this embodiment calculates the water removal rate in the pipeline by considering factors such as gas flow rate, flushing time, pressure, etc. The exponential part in the formula represents the amount of water removed over time, taking into account the effect of energy transfer (through the injection of nitrogen and latent heat of evaporation).

[0108] In this embodiment, when the cleaning instruction is received, the water volume V in the transmission pipeline is calculated by formula (2);

[0109] The formula (2) is:

[0110]

[0111] ε is the humidity in the pipe; V p is the volume of the pipe; M water is the molar mass of water; ρ water is the density of water.

[0112] In this embodiment, an electric belt is further wound around the outside of the transmission pipe, and the electric belt is connected to the controller;

[0113] The controller is also used to control the electric belt to heat to a preset first target temperature after receiving a water paint delivery instruction; or, the controller is also used to control the electric belt to heat to a preset second target temperature after receiving a water paint cleaning instruction.

[0114] In this embodiment, by heating the electric belt to a preset first target temperature (i.e., the spraying temperature of the water-based paint) during the water-based paint delivery process, it is possible to ensure that the water-based paint is sprayed at an optimal temperature. This temperature control helps maintain the proper fluidity and viscosity of the water-based paint, thereby improving the uniformity and adhesion of the spraying and avoiding coating defects caused by improper temperature.

[0115] In this embodiment, two different target temperatures (first target temperature and second target temperature) are introduced, corresponding to the delivery and cleaning processes of water paint, respectively. This flexible temperature control strategy can adjust the pipeline temperature according to different operating requirements to ensure the best operating effect at different stages. For example, a higher temperature during cleaning helps to reduce the viscosity of the water paint, making it easier to remove residues and improve cleaning efficiency.

[0116] The preset first target temperature is: a pre-acquired spraying temperature corresponding to the water paint in the water paint bucket;

[0117] The preset second target temperature is greater than or equal to the first specified temperature value;

[0118] Wherein, the viscosity of the water paint at the first specified temperature value is less than or equal to a preset viscosity value;

[0119] In this embodiment, the electric heating belt is heated to the second target temperature during the cleaning process, which can effectively reduce the viscosity of the water paint. The second target temperature ensures that the water paint is more easily washed away by high-pressure nitrogen or other cleaning media during cleaning, thereby reducing cleaning time and resource consumption, and improving the cleanliness and work efficiency of the system. By setting the first specified temperature value so that the viscosity of the water paint at this temperature is less than or equal to the pre-set viscosity value, the fluidity and coating thickness of the water paint can be accurately controlled. This control method helps to maintain the consistency of the spraying process and ensure that the quality of the final coating meets the expected standards.

[0120] Through precise temperature control, the viscosity of water-based paint can be prevented from increasing due to low temperature during transportation, which can cause pipeline blockage or uneven spraying. The heating function of the electric belt helps maintain the fluidity of the water-based paint and ensures smooth transportation and spraying.

[0121] The viscosity of the water paint at the first specified temperature value is calculated by formula (3);

[0122] The formula (3) is:

[0123]

[0124] δ(T0) is the viscosity of the water paint at the first specified temperature value T0;

[0125] μ is a preset constant;

[0126] R is the gas constant;

[0127] E a is the activation energy;

[0128] T ref is a preset reference temperature;

[0129] T0 is the first specified temperature value.

[0130] Specifically, the transmission pipeline is fixed by a pipeline support, and a vibration absorber is also provided on the pipeline support.

[0131] In this embodiment, the transmission pipeline is installed on the pipeline support, and the support plays the role of supporting and fixing the pipeline to prevent the pipeline from displacement or deformation during operation. The vibration absorber is installed on the pipeline support to slow down and absorb the vibration generated by the transmission pipeline during operation. The vibration absorber usually adopts elastic materials or damping devices to reduce the impact of vibration transmission to the pipeline support or other structures. The vibration absorber can effectively reduce the vibration generated by the transmission pipeline when conveying water paint or cleaning, avoid the instability of water paint flow caused by vibration, ensure the continuity and uniformity of the spraying process, and thus improve the coating quality. Vibration can cause fatigue and wear to the pipeline and support, and long-term vibration may cause structural damage or loosening. The vibration absorber can reduce these mechanical stresses, extend the service life of the pipeline and support, and reduce the frequency of maintenance and replacement. By reducing vibration, the operation of the entire spraying system is more stable, avoiding equipment failure or unexpected shutdown caused by vibration, and improving the reliability and production efficiency of the system. The vibration absorber can reduce the noise caused by pipeline vibration, thereby improving the working environment, reducing the interference of noise to operators, and improving work comfort. Continuous vibration may cause the connectors (such as valves, joints, etc.) of the pipeline to loosen, and even cause leakage or failure. Vibration absorbers can effectively absorb and attenuate vibrations, reduce the risk of loose connections, and ensure the sealing and safety of the system.

[0132] In this embodiment, the controller is further used to control the output power value of the first delivery pump based on the pressure collected by the information collection device and the pre-acquired pressure threshold.

[0133] In this embodiment, the controller compares the real-time pressure data with a preset pressure threshold. If the actual pressure exceeds the predetermined range, the controller calculates the required adjustment amount. Based on the comparison result, the controller adjusts the output power value of the first delivery pump. Increase the power to increase the pressure, or reduce the power to reduce the pressure to ensure that the system pressure remains within the preset safety and efficiency range. The adjusted power value is applied in real time, and the controller continuously monitors the pressure data and makes necessary adjustments to maintain a stable delivery process. This control mechanism ensures pressure stability during the painting process, thereby improving the spraying quality and the overall reliability of the system.

[0134] The automated paint delivery system in this embodiment, the spraying device comprises: a robot arm and a spray gun; the spray gun is arranged on the robot arm and connected to the transmission pipeline; the robot arm and the spray gun are respectively connected to the controller, and the controller is used to control the spraying device to spray the components to be sprayed on the paint platform according to a pre-set path.

[0135] In this embodiment, the controller starts the spraying device, the robot arm moves according to the preset path, and the spray gun atomizes and sprays the paint at the same time. The controller monitors various parameters in the spraying process, such as spraying speed, paint meteors, etc., to ensure the quality of spraying. After the spraying task is completed, the controller stops the spraying of the spray gun, and the robot arm moves to the preset position. In this embodiment, the combination of the robot arm and the spray gun, in conjunction with the instructions of the controller, realizes the automation of the spraying process, reduces manual operation, and improves the efficiency and consistency of spraying. The controller can accurately control the movement and spraying of the spray gun according to the preset path, ensure that the spraying is uniform and meets the design requirements, and improve the quality of spraying. The adjustment of the preset path can be flexibly modified according to different spraying requirements to meet the spraying requirements of various components to be sprayed. The precise control of the robot arm reduces human errors in the spraying process and improves the stability and reliability of the overall spraying.

[0136] Anti-flow paint plates are arranged around the painting platform;

[0137] Among them, the distance between the anti-flow paint plate and the paint spraying platform is greater than or equal to 30 cm and less than 100 cm; the anti-flow paint plate is a galvanized plate or SUS201 stainless steel plate of specified thickness.

[0138] SUS201 is a type of stainless steel material, mainly used to identify its composition and characteristics. SUS201 stainless steel plate is used as anti-flow paint plate, which has low cost and can work effectively in less harsh environments.

[0139] In this embodiment, the anti-flow paint plate effectively prevents the paint liquid from flowing out of the paint spraying platform during the painting process, protecting the surrounding environment and facilities. The anti-flow paint plate within the setting distance reduces the pollution of the paint spraying operation to the environment and helps to keep the production area clean. The thickness of the galvanized plate and the setting distance ensure the durability and stability of the plate, reducing the safety risks caused by the leakage of paint liquid during the painting process.

[0140] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0141] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0142] In the present invention, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0143] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0144] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An automated paint spraying and conveying system, characterized in that: The system comprises: a water paint bucket for storing water paint, a first delivery pump for extracting the water paint in the water paint bucket into a delivery pipeline, a delivery pipeline and a spraying device connected in sequence; Wherein, the first end of the transmission pipeline is connected to the nitrogen supply device through a first control valve; the second end of the transmission pipeline is also provided with a second control valve; the first end of the transmission pipeline is the connection end between the transmission pipeline and the first delivery pump; the second end of the transmission pipeline is the connection end between the transmission pipeline and the spraying device; A third control valve is also provided between the second control valve and the spraying device, and the third control valve is connected to the curing agent barrel through the second delivery pump; an information collection device is also provided inside the transmission pipeline for collecting the humidity, pressure, and flow rate of water paint and curing agent in the transmission pipeline; The information collection device includes: a pressure sensor, a humidity sensor and a flow meter; The first delivery pump, the nitrogen supply device, the first control valve, the second control valve, the information collection device, the third control valve and the second delivery pump are all connected to the controller. The controller is used to control the first control valve and the second control valve to close and the first delivery pump to open after receiving the water paint delivery instruction, so that the first delivery pump extracts the water paint in the water paint bucket and delivers the water paint to the spraying device through the transmission pipeline, and controls the third control valve and the second delivery pump to open, so that the second delivery pump extracts the curing agent in the curing agent bucket and delivers the water paint to the spraying device through the transmission pipeline; or, the controller is used to control the first delivery pump, the second delivery pump and the third control valve to close respectively after receiving the cleaning instruction, and based on the humidity collected by the information collection device, respectively control the switches of the nitrogen supply device, the first control valve and the second control valve used to provide high-pressure nitrogen.

2. The automatic paint spraying and conveying system according to claim 1, characterized in that: The inner wall of the transmission pipeline is provided with a hydrophobic coating; The material of the hydrophobic coating is one of polytetrafluoroethylene, silicone resin, fluorine-containing polymer and nano material.

3. The automatic paint spraying and conveying system according to claim 2, characterized in that: After receiving the cleaning instruction, the controller controls the switches of the nitrogen supply device for providing high-pressure nitrogen, the first control valve, and the second control valve respectively based on the humidity collected by the information collection device, specifically including: When the humidity collected by the information collection device is greater than a first preset humidity value, the controller controls the first control valve and the second control valve to open, and controls the nitrogen supply device to open to provide high-pressure nitrogen, and sprays and flushes the inner wall of the transmission pipeline through the first control valve until the humidity in the transmission pipeline is less than the second preset humidity value and the moisture removal rate is less than a preset threshold value; Wherein, the moisture removal rate is calculated using formula (1); The formula (1) is: Where, F is the water removal rate; Q is the nitrogen flow rate; T is the nitrogen injection flushing time; V is the volume of water in the transmission pipe when the cleaning command is received; △H is the latent heat of water evaporation; P is the pressure in the transmission pipeline; α is a pre-set coefficient; exp() is the natural exponential function.

4. The automatic paint spraying and conveying system according to claim 3 is characterized in that: When the cleaning instruction is received, the volume V of water in the transmission pipeline is calculated by formula (2); The formula (2) is: ε is the humidity in the pipe; V p is the volume of the pipeline; M water is the molar mass of water; ρ water is the density of water.

5. The automatic paint spraying and conveying system according to claim 4, characterized in that: The transmission pipe is also wrapped with an electric belt outside, and the electric belt is connected to the controller; The controller is also used to control the electric belt to heat to a preset first target temperature after receiving a water paint delivery instruction; or, the controller is also used to control the electric belt to heat to a preset second target temperature after receiving a water paint cleaning instruction.

6. The automatic paint spraying and conveying system according to claim 5, characterized in that: The preset first target temperature is: a pre-acquired spraying temperature corresponding to the water paint in the water paint bucket; The preset second target temperature is greater than or equal to the first specified temperature value; Wherein, the viscosity of the water paint at the first specified temperature value is less than or equal to a preset viscosity value; The viscosity of the water paint at the first specified temperature value is calculated by formula (3); The formula (3) is: δ(T0) is the viscosity of the water paint at the first specified temperature value T0; μ is a preset constant; R is the gas constant; E a is the activation energy; T ref is a preset reference temperature; T0 is the first specified temperature value.

7. The automatic paint spraying and conveying system according to claim 6, characterized in that: The transmission pipeline is fixed by a pipeline support, and a vibration absorber is also arranged on the pipeline support.

8. The automatic paint spraying and conveying system according to claim 7, characterized in that: The controller is also used to control the output power value of the first delivery pump based on the pressure collected by the information collection device and the pre-acquired pressure threshold.

9. The automatic paint spraying and conveying system according to claim 8, characterized in that: The spraying device comprises: a robot arm and a spray gun; The spray gun is arranged on the robot arm and connected to the transmission pipeline; The robot arm and the spray gun are respectively connected to the controller, and the controller is used to control the spraying device to spray the components to be sprayed on the painting platform according to a preset path.

10. The automatic paint spraying and conveying system according to claim 9, characterized in that: Anti-flow paint plates are arranged around the painting platform; Among them, the distance between the anti-flow paint plate and the paint spraying platform is greater than or equal to 30 cm and less than 100 cm; the anti-flow paint plate is a galvanized plate or SUS201 stainless steel plate of specified thickness.

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