Batching device of intelligent paint spraying equipment

By combining temperature control and stirring components, the temperature and viscosity of the coating are monitored and adjusted in real time, solving the problems of coating solidification and viscosity instability, and ensuring spraying quality and efficiency.

CN224221272UActive Publication Date: 2026-05-12NANJING ANTIE OFFSHORE ENG EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING ANTIE OFFSHORE ENG EQUIP CO LTD
Filing Date
2025-05-16
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The mixing device of existing intelligent spray painting equipment is prone to paint solidification at low temperatures, which leads to a decrease in spraying quality. In addition, the viscosity of the paint is unstable during the heating process, which affects the spraying effect.

Method used

The system employs a temperature control component and a stirring component. The temperature is monitored in real time by a first thermocouple and a second thermocouple. A PLC controller controls the heating of the electric heating rod, and a circulation component regulates the flow of heat transfer oil. Combined with a servo motor driving the stirring shaft and stirring blades, the coating material is stirred to ensure uniform temperature and stable viscosity.

Benefits of technology

It effectively prevents paint from solidifying, keeps the paint in a good flow state, improves spraying quality and work efficiency, and reduces paint waste.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224221272U_ABST
    Figure CN224221272U_ABST
Patent Text Reader

Abstract

The utility model provides a batching device of intelligent paint spraying equipment, which relates to the field of batching equipment of the intelligent paint spraying equipment, and comprises a batching assembly, a base for supporting, a batching tank for providing a batching space, a top cover movably connected to the top of the batching tank, and an opening and closing assembly for opening and closing the top cover, the batching tank comprises a shell, an inner container fixed in an inner cavity of the shell, and an interlayer positioned between the shell and the inner container; the temperature of the interlayer and the temperature of the inner container are monitored in real time through the first thermocouple and the second thermocouple in the temperature control assembly respectively, the liquid level sensor monitors the liquid level of the heat conduction oil, the sensor transmits data to the PLC, the PLC controls the electric heating rod to heat the inner container, meanwhile, the circulation assembly can enable the heat conduction oil to flow circularly, and therefore the heat conduction oil can be heated. And therefore, the heating speed and temperature are accurately controlled, excessive fluctuation of the temperature is avoided, the stability of the viscosity of the coating is ensured, and the spraying quality is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of batching equipment for intelligent spray painting equipment, specifically a batching device for intelligent spray painting equipment. Background Technology

[0002] Intelligent spray painting equipment is a coating equipment that integrates automation, artificial intelligence and precision control technology. It can autonomously complete the spraying operation of complex workpieces. Through the collaborative work of the robot body (robotic arm), spray gun, sensors and control system, it realizes a spraying process without human intervention. Equipped with machine vision, AI algorithms and deep learning technology, it can detect the surface shape of the workpiece in real time, locate the spraying path, and automatically adjust parameters such as spray gun angle, distance and paint flow rate to ensure uniform coating. When the intelligent spray painting equipment is working, it needs to be supplied with paint through a dispensing device. The dispensing device is mainly responsible for the storage, proportioning and transportation of paint.

[0003] According to Chinese Patent Application No. 202420333562.7, an automatic dispensing device for a spraying robot is disclosed, relating to the field of spraying robot technology. The device includes an assembly frame and an automatic dispensing mechanism. The assembly frame is mounted on the frame of the spraying robot. The automatic dispensing mechanism includes a base, a dispensing and mixing mechanism, a dispensing storage tank, and a dispensing guide trough. A dispensing guide trough is installed on the assembly frame above the dispensing and mixing mechanism, and a dispensing storage tank is installed on the assembly frame above the dispensing guide trough. The bottom of the dispensing storage tank is connected to the interior of the dispensing guide trough via symmetrically arranged dispensing conduits. A dispensing scraper is installed inside the dispensing guide trough and is connected to a scraping drive mechanism. By setting the dispensing guide trough between the dispensing storage tank and the mixing tank of the dispensing and mixing mechanism, the dispensing scraper inside the dispensing guide trough, driven by the scraping drive mechanism, can scrape off the dispensing material adhering to the inner wall of the dispensing guide trough, avoiding the problem of low paint dispensing accuracy and material waste caused by the dispensing material being trapped in the dispensing guide trough.

[0004] Existing technologies effectively solve the problems of low efficiency and waste in intelligent spray painting mixing devices, and have the advantages of improving mixing efficiency and reducing waste. However, the paint will solidify at low temperatures, so frequent stirring or heating is required to alleviate the solidification. During the heating process, the viscosity of the paint will be affected by temperature fluctuations, thereby reducing the spraying quality.

[0005] In summary, this utility model provides a dispensing device for an intelligent spray painting equipment to solve the above-mentioned problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A dispensing device for an intelligent spray painting equipment includes a dispensing assembly comprising a base for support, a dispensing tank for providing dispensing space, a top cover movably connected to the top of the dispensing tank, and an opening / closing assembly for opening and closing the top cover. The dispensing tank includes an outer shell, an inner liner fixed to the inner cavity of the outer shell, and a sandwich layer located between the outer shell and the inner liner, wherein the inner cavity of the sandwich layer is filled with heat-conducting oil. A circulation assembly includes a circulation pump and connecting pipe for drawing heat-conducting oil, a circulation pipe for circulating the heat-conducting oil, and a first solenoid valve for adjusting the circulation flow rate. The first solenoid valve and the outer shell are both fixed to the top of the base. One end of the circulation pipe is connected to the inner cavity of the interlayer, and the other end is connected to the inlet end of the circulation pump. One end of the circulation pipe is connected to the inner cavity of the interlayer, and the other end is connected to the outlet end of the circulation pump. The first solenoid valve is installed on the surface of the circulation pipe. A heat transfer oil replenishment pipe is also fixed on the surface of the outer shell and is connected to the inner cavity of the interlayer. The temperature control component includes a PLC controller, an electric heating rod fixed to the lower end of the inner cavity of the interlayer, a first thermocouple, a second thermocouple, and a liquid level sensor fixed to the surface of the outer shell. The detection ends of the first thermocouple and the liquid level sensor both penetrate into the inner cavity of the interlayer, and the detection end of the second thermocouple penetrates into the inner cavity of the inner liner.

[0008] Furthermore, in this utility model, the opening and closing assembly includes a servo cylinder, a support base connected to the servo cylinder via a movable pin, a fixing plate connected to the output end of the servo cylinder via a movable pin, and a connecting seat fixed to the surface of the outer shell and connected to the fixing plate via a movable pin. The fixing plate is fixed to the top of the top cover, and the other end of the support base is fixedly connected to the outer shell.

[0009] Furthermore, in this invention, the surface of the top cover is also equipped with a stirring assembly, which includes a servo motor, a protective cover fixed to the top of the fixed plate, a stirring shaft and stirring blades located in the inner cavity of the inner liner, and a driving wheel and a driven wheel located in the inner cavity of the protective cover.

[0010] Furthermore, in this utility model, the servo motor is fixed to the top of the protective cover, and the output shaft passes through the inner cavity of the protective cover and is connected to the drive wheel via a drive. One end of the stirring shaft is fixedly connected to the stirring blade, and the other end passes through the inner cavity of the protective cover and is fixedly connected to the driven wheel. The drive wheel and the driven wheel are connected by a belt drive.

[0011] Furthermore, in this invention, a conveying assembly is also installed on one side of the base. The conveying assembly includes a conveying pump and connecting pipe for extracting paint, a conveying pipe for conveying paint, and a second solenoid valve for controlling the flow rate.

[0012] Furthermore, in this utility model, the second solenoid valve is installed on the surface of the delivery pipe, one end of the delivery pipe is connected to the liquid outlet of the delivery pump, and the other end is connected to the robotic arm spray gun, one end of the connecting pipe is connected to the liquid inlet of the delivery pump, and the other end is connected to the inner cavity of the inner liner.

[0013] Furthermore, in this invention, the output terminals of the first thermocouple, the second thermocouple, and the liquid level sensor are all connected to the input terminal of the PLC controller. The output terminal of the PLC controller is connected to the input terminals of the electric heating rod, the servo cylinder, the circulating pump, the first solenoid valve, the servo motor, the delivery pump, and the second solenoid valve, respectively.

[0014] Beneficial effects: This utility model has the following beneficial effects:

[0015] This invention uses a first thermocouple and a second thermocouple in the temperature control component to monitor the temperature of the jacket and inner liner in real time. A liquid level sensor monitors the level of the heat transfer oil and transmits the data to a PLC controller. When the temperature of the coating inside the inner liner is too low, the PLC controller controls the electric heating rod to heat the inner liner. At the same time, the circulation component allows the heat transfer oil to circulate, so that the heat is transferred to the coating more evenly. The first solenoid valve can adjust the circulation flow of the heat transfer oil, thereby accurately controlling the heating speed and temperature, avoiding excessive temperature fluctuations, ensuring stable coating viscosity, and improving the spraying quality.

[0016] This invention uses a servo motor in the stirring assembly to drive the drive wheel, which in turn drives the driven wheel to rotate via belt transmission. This, in turn, drives the stirring shaft and stirring blades to stir the coating inside the inner tank. Continuous stirring can prevent the coating from solidifying and ensure that all parts of the coating are heated evenly, reducing viscosity changes caused by local temperature differences, thereby ensuring that the coating is in a good flow state. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the ingredient dispensing component of this utility model;

[0019] Figure 3 This is a front view cross-sectional structural diagram of the ingredient tank of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection state structure of the stirring assembly of this utility model;

[0021] Figure 5 This is a schematic diagram of the system flow of this utility model.

[0022] In the picture:

[0023] 100. Batching assembly; 110. Base; 120. Batching tank; 121. Outer shell; 122. Inner liner; 123. Layer; 130. Top cover; 140. Opening / closing assembly; 141. Servo cylinder; 142. Support base; 143. Fixing plate; 144. Connecting base; 200. Circulation assembly; 210. Circulation pump; 220. Connecting pipe; 230. Circulation pipe; 240. First solenoid valve; 300. Temperature control assembly; 31. 0. PLC controller; 320. Electric heating rod; 330. First thermocouple; 340. Second thermocouple; 350. Liquid level sensor; 400. Stirring assembly; 410. Servo motor; 420. Protective cover; 430. Stirring shaft; 440. Stirring blade; 450. Drive wheel; 460. Driven wheel; 500. Conveying assembly; 510. Conveying pump; 520. Connecting pipe; 530. Conveying pipe; 540. Second solenoid valve. Detailed Implementation

[0024] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0025] Example 1

[0026] like Figure 1-5As shown, this is the first embodiment of the present invention. This embodiment provides a dispensing device for an intelligent spray painting equipment, including a dispensing component 100, comprising a base 110 for support, a dispensing tank 120 for providing dispensing space, a top cover 130 movably connected to the top of the dispensing tank 120, and an opening and closing component 140 for opening and closing the top cover 130. The dispensing tank 120 includes an outer shell 121, an inner liner 122 fixed to the inner cavity of the outer shell 121, and a sandwich 123 located between the outer shell 121 and the inner liner 122, with heat transfer oil added to the inner cavity of the sandwich 123. A circulation component 200 includes a circulation pump 210 for extracting heat transfer oil and a connecting pipe 220, a circulation pipe 230 for circulating heat transfer oil, and a first solenoid valve 240 for adjusting the circulation flow rate. The first solenoid valve 240 and the outer shell 121 are both fixed to the base 110. At the top of 10, one end of the connecting pipe 220 is connected to the inner cavity of the interlayer 123, and the other end is connected to the liquid inlet of the circulation pump 210. One end of the circulation pipe 230 is connected to the inner cavity of the interlayer 123, and the other end is connected to the liquid outlet of the circulation pump 210. The first solenoid valve 240 is installed on the surface of the circulation pipe 230. The surface of the outer shell 121 is also fixed with a heat transfer oil replenishment pipe, which is connected to the inner cavity of the interlayer 123. The temperature control component 300 includes a PLC controller 310, an electric heating rod 320 fixed to the lower end of the inner cavity of the interlayer 123, a first thermocouple 330, a second thermocouple 340, and a liquid level sensor 350 fixed to the surface of the outer shell 121. The detection ends of the first thermocouple 330 and the liquid level sensor 350 both penetrate into the inner cavity of the interlayer 123, and the detection end of the second thermocouple 340 penetrates into the inner cavity of the inner liner 122.

[0027] like Figure 1-5As shown, the circulation pump 210, connecting pipe 220, circulation pipe 230, and first solenoid valve 240 in the circulation assembly 200 enable the heat transfer oil to circulate in the jacket 123 of the mixing tank 120. This circulation ensures uniform temperature around the inner liner 122, preventing localized overheating or underheating, thus providing a stable temperature environment for mixing. The PLC controller 310 in the temperature control assembly 300, combined with the first thermocouple 330, the second thermocouple 340, and the electric heating rod 320, can monitor the temperature of the jacket 123 and the inner liner 122 in real time. When the temperature falls below the set value, the PLC controller 310 will control... The electric heating rod 320 heats the oil. When the temperature is too high, the circulation flow of the heat transfer oil can be controlled by adjusting the first solenoid valve 240, thereby precisely regulating the temperature and ensuring that the batching process is carried out at a suitable temperature. The liquid level sensor 350 monitors the amount of heat transfer oil in the jacket 123 in real time. When the level is lower than the threshold, it is automatically replenished through the replenishment pipe to prevent the risk of dry burning. Through the cooperation of the temperature control component 300, the stirring component 400 and the conveying component 500, the coating can be effectively prevented from solidifying at low temperatures and the heating temperature of the coating can be precisely controlled to avoid the temperature fluctuation affecting the viscosity of the coating. This solves the problem of reduced spraying quality caused by coating solidification and viscosity changes.

[0028] Example 2

[0029] Reference Figure 1-4 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0030] In this embodiment, the opening and closing assembly 140 includes a servo cylinder 141, a support base 142 connected to the servo cylinder 141 via a movable pin, a fixing plate 143 connected to the output end of the servo cylinder 141 via a movable pin, and a connecting base 144 fixed to the surface of the housing 121 and connected to the fixing plate 143 via a movable pin. The fixing plate 143 is fixed to the top of the top cover 130, and the other end of the support base 142 is fixedly connected to the housing 121.

[0031] The surface of the top cover 130 is also equipped with a stirring assembly 400, which includes a servo motor 410, a protective cover 420 fixed to the top of the fixed plate 143, a stirring shaft 430 and a stirring blade 440 located in the inner cavity of the inner liner 122, and a drive wheel 450 and a driven wheel 460 located in the inner cavity of the protective cover 420.

[0032] The servo motor 410 is fixed to the top of the protective cover 420, and its output shaft passes through the inner cavity of the protective cover 420 and is connected to the drive wheel 450 for transmission. One end of the stirring shaft 430 is fixedly connected to the stirring blade 440, and the other end passes through the inner cavity of the protective cover 420 and is fixedly connected to the driven wheel 460. The drive wheel 450 and the driven wheel 460 are connected by belt transmission.

[0033] like Figure 1-4 As shown, the servo cylinder 141, support base 142, fixing plate 143, and connecting base 144 of the opening and closing assembly 140 cooperate with each other to realize the automatic opening and closing of the top cover 130. When it is necessary to add ingredients, the top cover 130 can be opened quickly, and after the ingredients are added, it can be closed in time, reducing manual operation and improving work efficiency. The output end of the servo cylinder 141 retracts, driving one end of the fixing plate 143 to rotate along the connecting base 144, which drives the top cover 130 to open. The output end of the servo cylinder 141 extends, which closes the top cover 130 with the ingredient tank 120. After the ingredients are added, the servo motor 410 starts, and its output shaft drives the drive wheel 450 to rotate. The drive wheel 450 drives the driven wheel 460 to rotate through the belt. The driven wheel 460 drives the stirring shaft 430 and the stirring blade 440 to rotate in the inner tank 122, stirring the ingredients and making them evenly mixed.

[0034] Example 3

[0035] Reference Figure 1 and 5 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0036] In this embodiment, a conveying assembly 500 is also installed on one side of the base 110. The conveying assembly 500 includes a conveying pump 510 and a connecting pipe 520 for drawing paint, a conveying pipe 530 for conveying paint, and a second solenoid valve 540 for controlling the flow rate.

[0037] The second solenoid valve 540 is installed on the surface of the delivery pipe 530. One end of the delivery pipe 530 is connected to the liquid outlet of the delivery pump 510, and the other end is connected to the robotic arm spray gun. One end of the connecting pipe 520 is connected to the liquid inlet of the delivery pump 510, and the other end is connected to the inner cavity of the inner liner 122.

[0038] The outputs of the first thermocouple 330, the second thermocouple 340, and the liquid level sensor 350 are all connected to the input of the PLC controller 310. The output of the PLC controller 310 is connected to the input of the electric heating rod 320, the servo cylinder 141, the circulating pump 210, the first solenoid valve 240, the servo motor 410, the delivery pump 510, and the second solenoid valve 540, respectively.

[0039] like Figure 1 and 5As shown, the delivery pump 510 draws the mixed paint from the inner tank 122 through the connecting pipe 520, and then delivers the paint to the robotic arm spray gun through the delivery pipe 530. The second solenoid valve 540 is installed on the delivery pipe 530 to control the paint delivery flow rate. The delivery pump 510, connecting pipe 520, delivery pipe 530 and second solenoid valve 540 of the delivery assembly 500 work together to realize the automatic delivery of materials. The PLC controller 310 coordinates the work of each component to realize the functions of material dispensing, temperature control, stirring and delivery, so as to meet the material dispensing requirements of the intelligent spray painting equipment.

[0040] When in use, at the start of the mixing process, the servo cylinder 141 of the opening and closing assembly 140 is controlled by the PLC controller 310. When the servo cylinder 141 moves, it drives the fixed plate 143 to move through the movable pin. Since the fixed plate 143 is fixed to the top cover 130 and is movably connected to the outer shell 121 through the connecting seat 144, the opening and closing of the top cover 130 is realized. After the top cover 130 is opened, paint raw materials can be added to the inner tank 122 for mixing.

[0041] After the circulation pump 210 starts, it draws heat transfer oil from the jacket 123 through the connecting pipe 220, and then sends the heat transfer oil back to the jacket 123 through the circulation pipe 230, forming a circulation of heat transfer oil. The first solenoid valve 240 is installed on the circulation pipe 230, and the circulation flow rate of the heat transfer oil can be adjusted as needed. The heat transfer oil replenishment pipe on the surface of the outer shell 121 is used to replenish the heat transfer oil to the jacket 123. The first thermocouple 330 detects the temperature of the heat transfer oil in the jacket 123, the second thermocouple 340 detects the temperature of the coating in the inner liner 122, and the liquid level sensor 350 detects the liquid level of the heat transfer oil in the jacket 123. The sensor transmits the detected signal to the PLC controller 310. When the detected temperature is lower than the set value, the PLC controller 310 controls the electric heating rod 320 to start and heat the heat transfer oil. When the liquid level is too low, heat transfer oil can be replenished through the heat transfer oil replenishment pipe.

[0042] The servo motor 410 starts, and its output shaft drives the drive wheel 450 to rotate. The drive wheel 450 drives the driven wheel 460 to rotate via a belt. The driven wheel 460 drives the stirring shaft 430 and the stirring blade 440 to rotate inside the inner tank 122, stirring the ingredients to make them evenly mixed. After the ingredients are mixed, the delivery pump 510 draws the mixed paint from the inner tank 122 through the connecting pipe 520, and then delivers the paint to the robotic arm spray gun through the delivery pipe 530. The second solenoid valve 540 is installed on the delivery pipe 530 to control the paint delivery flow rate. The PLC controller 310 coordinates the work of each component to realize the functions of ingredient mixing, temperature control, stirring and conveying, so as to meet the ingredient mixing requirements of the intelligent spray painting equipment.

[0043] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0044] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A batching device for an intelligent spray painting equipment, characterized in that: include, The dispensing assembly (100) includes a base (110) for support, a dispensing tank (120) for providing dispensing space, a top cover (130) movably connected to the top of the dispensing tank (120), and an opening and closing assembly (140) for opening and closing the top cover (130). The mixing tank (120) includes an outer shell (121), an inner liner (122) fixed to the inner cavity of the outer shell (121), and a sandwich (123) located between the outer shell (121) and the inner liner (122), and the inner cavity of the sandwich (123) is filled with heat-conducting oil. The circulation assembly (200) includes a circulation pump (210) for drawing heat transfer oil and a connecting pipe (220), a circulation pipe (230) for circulating the heat transfer oil, and a first solenoid valve (240) for adjusting the circulation flow rate. The first solenoid valve (240) and the outer shell (121) are both fixed to the top of the base (110). One end of the connecting pipe (220) is connected to the inner cavity of the interlayer (123), and the other end is connected to the liquid inlet of the circulating pump (210). One end of the circulating pipe (230) is connected to the inner cavity of the interlayer (123), and the other end is connected to the liquid outlet of the circulating pump (210). The first solenoid valve (240) is installed on the surface of the circulating pipe (230). A heat transfer oil replenishment pipe is also fixed on the surface of the outer shell (121) and is connected to the inner cavity of the interlayer (123). The temperature control assembly (300) includes a PLC controller (310), an electric heating rod (320) fixed to the lower end of the inner cavity of the interlayer (123), a first thermocouple (330), a second thermocouple (340) and a liquid level sensor (350) fixed to the surface of the outer shell (121), and the detection ends of the first thermocouple (330) and the liquid level sensor (350) both penetrate into the inner cavity of the interlayer (123), and the detection end of the second thermocouple (340) penetrates into the inner cavity of the inner liner (122).

2. The batching device of the intelligent spray painting equipment as described in claim 1, characterized in that: The opening and closing assembly (140) includes a servo cylinder (141), a support base (142) connected to the servo cylinder (141) via a movable pin, a fixing plate (143) connected to the output end of the servo cylinder (141) via a movable pin, and a connecting base (144) fixed to the surface of the outer shell (121) and connected to the fixing plate (143) via a movable pin. The fixing plate (143) is fixed to the top of the top cover (130), and the other end of the support base (142) is fixedly connected to the outer shell (121).

3. The batching device of the intelligent spray painting equipment as described in claim 2, characterized in that: The surface of the top cover (130) is also equipped with a stirring assembly (400), which includes a servo motor (410), a protective cover (420) fixed to the top of the fixed plate (143), a stirring shaft (430) and stirring blades (440) located in the inner cavity of the inner liner (122), and a drive wheel (450) and a driven wheel (460) located in the inner cavity of the protective cover (420).

4. The batching device of the intelligent spray painting equipment as described in claim 3, characterized in that: The servo motor (410) is fixed to the top of the protective cover (420), and its output shaft passes through the inner cavity of the protective cover (420) and is connected to the drive wheel (450) for transmission. One end of the stirring shaft (430) is fixedly connected to the stirring blade (440), and the other end passes through the inner cavity of the protective cover (420) and is fixedly connected to the driven wheel (460). The drive wheel (450) and the driven wheel (460) are connected by belt transmission.

5. The batching device of the intelligent spray painting equipment as described in claim 1, characterized in that: A conveying assembly (500) is also installed on one side of the base (110). The conveying assembly (500) includes a conveying pump (510) and a connecting pipe (520) for drawing paint, a conveying pipe (530) for conveying paint, and a second solenoid valve (540) for controlling the flow rate.

6. The batching device of the intelligent spray painting equipment as described in claim 5, characterized in that: The second solenoid valve (540) is installed on the surface of the delivery pipe (530). One end of the delivery pipe (530) is connected to the liquid outlet of the delivery pump (510), and the other end is connected to the spray gun of the robotic arm. One end of the connecting pipe (520) is connected to the liquid inlet of the delivery pump (510), and the other end is connected to the inner cavity of the inner liner (122).

7. The batching device of the intelligent spray painting equipment as described in claim 1, characterized in that: The output terminals of the first thermocouple (330), the second thermocouple (340), and the liquid level sensor (350) are all connected to the input terminal of the PLC controller (310). The output terminal of the PLC controller (310) is connected to the input terminals of the electric heating rod (320), the servo cylinder (141), the circulating pump (210), the first solenoid valve (240), the servo motor (410), the delivery pump (510), and the second solenoid valve (540), respectively.