Automatic wax adding system for pots

Abstract

The present invention discloses an automatic waxing system for pots, comprising a control system and a wax storage tank, a pressure device, a wax adding device, and an external air source controlled by the control system; the wax storage tank stores paste polishing wax, the pressure device is respectively connected to the wax storage tank and the wax adding device, and transports the paste polishing wax from the wax storage tank to the wax adding device; the external air source is respectively connected to the wax storage tank and the wax adding device; the wax adding device is aimed at the pot product to be polished. This system uses paste polishing wax with a higher concentration to replace water wax or solid wax to improve the polishing effect. The paste polishing wax is sprayed directly on the product through the pressure device and the wax adding device, avoiding the high-speed rotating polishing wheel from flying away the wax, and avoiding the problem of uneven spraying and waste of water wax; this system can be fully automatically controlled, with precise quantitative determination, high spraying efficiency, and uniform coverage of the spraying area.

Description

Technical Field

[0001] The invention relates to the technical field of equipment related to a polishing process of a stainless steel pot, and in particular to an automatic waxing system for pots. Background Art

[0002] When polishing stainless steel products, in order to ensure the polishing effect, an appropriate amount of polishing wax needs to be added during polishing. There are two main traditional methods: the first is to add water wax (polishing wax with a concentration of less than 30%), using a pressure barrel to generate pressure to supply the water wax to the spray gun, and then the spray gun sprays the water wax to the point where the product and the polishing wheel meet during polishing. Although water wax is simple to use and easy to automate, it also has disadvantages: first, due to its relatively low concentration, the polishing quality is relatively poor; second, due to the high-speed rotation of the polishing wheel, the sprayed wax has difficulty adhering to the polishing wheel. Moreover, since the entire product needs to be covered, the wax gun needs to be located at a distance from the product (more than 30cm). Therefore, most of the polishing wax is usually either thrown off by the polishing wheel or directly sprayed elsewhere by the wax gun, which is a serious waste and results in low polishing consumables. The second method is to add solid wax, using a solid wax stick to stick the wax to the polishing wheel, and using the high-speed rotation of the polishing wheel to grind the wax stick and melt it inside the polishing wheel. Using solid wax provides high wax utilization and excellent polishing quality. However, the wax stick needs to fit the polishing wheel, which rotates at high speed and is subject to wear, making the waxing device complex and expensive. Furthermore, since the wax stick is usually no longer than 50cm, it needs to be frequently replaced, increasing labor costs. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and provide an automatic waxing system for pots.

[0004] The present invention is achieved through the following technical solutions: an automatic waxing system for pots, including a control system and a wax storage tank, a pressure device, a wax adding device, and an external air source controlled by the control system; the wax storage tank stores paste polishing wax, the pressure device is respectively connected to the wax storage tank and the wax adding device, and transports the paste polishing wax from the wax storage tank to the wax adding device; the external air source is respectively connected to the wax storage tank and the wax adding device; the wax adding device is aimed at the pot product to be polished.

[0005] This device uses paste polishing wax with higher concentration to replace water wax or solid wax to improve the polishing effect. The paste polishing wax is sprayed directly on the product through the pressure device and the wax adding device, avoiding the high-speed rotating polishing wheel to fly away the wax and avoid the problem of uneven spraying and waste of water wax; the external air source can provide a certain air pressure to ensure that the paste polishing wax is smoothly supplied to the pressure device, and the external air source can provide spraying force for the wax adding device.

[0006] The wax storage tank comprises a tank body and a lid that covers the tank body. The tank body is provided with a wax inlet, a first valve for controlling the opening and closing of the wax inlet, a first wax outlet, and a second valve for controlling the opening and closing of the first wax outlet. The lid is provided with a first air inlet, a first safety valve, and a first level detection mechanism for detecting the level of paste polishing wax in the wax storage tank. The first air inlet is connected to an external air source, and the tank body and lid are mounted together via a lock. The control system comprises a PLC controller, a pneumatic solenoid valve controlled by the PLC controller, and a third regulating valve. The wax adding device is connected to the pneumatic solenoid valve and the third regulating valve in sequence via pipelines, and then to the external air source. The wax inlet is used to add paste polishing wax, and the first valve is used to control the opening and closing of the wax inlet. The first wax outlet, which serves as a channel for the paste polishing wax to flow out, is connected to a pressure device via a pipeline, and the second valve is used to control the opening and closing of the second wax outlet. The first air inlet is connected to an external air source to provide a certain pressure to the wax storage tank, ensuring smooth supply of the paste polishing wax to the pressure device. The first safety valve is a safety device that provides pressure relief protection when the pressure in the wax storage tank is too high.

[0007] The first level detection mechanism includes a first upper level sensor and a first lower level sensor. The first upper level sensor and the first lower level sensor are fixedly connected to the tank lid, with their lower ends extending into the tank body. The lower end of the first upper level sensor is higher than the lower end of the first lower level sensor. A first sealing ring is provided at the connection between the tank body and the tank lid. The wax storage tank also includes a first regulating valve, a stirrer, and a first manual ball valve. The stirrer and the first manual ball valve are each mounted on the tank lid. A stirring paddle is provided on the stirrer's rotating shaft and is located within the wax storage tank. The first wax outlet is connected to the external air source via the first regulating valve. The first upper level sensor and the first lower level sensor work together to detect whether the paste polishing wax in the wax storage tank is full or empty. The provision of the first sealing ring ensures the airtightness of the wax storage tank. The stirrer and stirring paddle ensure uniform mixing of the paste polishing wax, thereby improving spraying quality.

[0008] The pressure device is a pressure barrel comprising a barrel body and a lid that covers the barrel body. The barrel body is provided with a second wax outlet and a third valve for controlling the opening and closing of the second wax outlet. A pneumatic three-way valve is mounted outside the second wax outlet. The ports of the pneumatic three-way valve are respectively connected to the first wax outlet of the wax storage tank, the second wax outlet of the pressure barrel, and the wax adding device. The lid is provided with a second air inlet, a second safety valve, a second regulating valve, and a second material level detection mechanism for detecting the storage status of the paste polishing wax in the pressure barrel. The second air inlet is connected to the external air source. The barrel body and the lid are mounted via a lock. One end of the second regulating valve is connected to the second air inlet, and the other end is connected to the pipeline between the third regulating valve and the external air source. The external air source includes a positive pressure air source and a negative pressure air source. The positive and negative pressure air sources are switched by the control system. The positive and negative pressure air sources can maintain positive or negative pressure in the pressure barrel. The second safety valve serves as a safety device to provide pressure relief protection when the pressure in the pressure tank is too high.

[0009] The second material level detection mechanism includes a second upper material level sensor and a second lower material level sensor. These sensors are fixedly attached to the barrel lid, with their lower ends extending into the barrel body. The lower end of the second upper material level sensor is higher than the lower end of the second lower material level sensor. A second sealing ring is provided at the connection between the barrel body and the barrel lid. The barrel lid is also equipped with a pneumatic ball valve. The pipeline between the first wax outlet and the pneumatic three-way valve is connected in sequence to a second manual ball valve, a first filter valve, a first check valve, and a third manual ball valve. The outlet of the first check valve is directed toward the pneumatic three-way valve. A second check valve is provided in the pipeline between the pneumatic three-way valve and the wax adding device, with the outlet of the second check valve directed toward the wax adding device. The second upper material level sensor and the second lower material level sensor work together to detect whether the paste polishing wax in the pressure barrel is full or empty. The second sealing ring ensures the airtightness of the pressure barrel.

[0010] The pressure device is a screw pump, which includes a screw pump body, a first servo motor controlled by the PLC controller and used to control the screw pump body, a third one-way valve, and a back-pressure valve; the inlet of the screw pump body is connected to the first wax outlet of the wax storage tank through a pipeline; the pipeline between the first wax outlet and the inlet of the screw pump body is connected with a fourth manual ball valve, a second filter valve, a fourth one-way valve, and a fifth manual ball valve in sequence, and the outlet of the fourth one-way valve points to the inlet of the screw pump body; the outlet of the screw pump body is connected to the wax adding device through the third one-way valve, and the outlet of the third one-way valve points to the wax adding device; the wax storage tank is also provided with a fifth one-way valve, one end of the back-pressure valve is connected to the pipeline between the third one-way valve and the wax adding device, and the other end is connected to the fifth one-way valve, and the outlet of the fifth one-way valve points to the wax storage tank. The rated torque and speed are output by the first servo motor to keep the output pressure of the paste polishing wax stable. If the pipeline pressure is too high or the wax adding device is blocked, the back pressure valve will automatically open, return the wax to the wax storage tank, and alarm will be issued to shut down the machine for maintenance.

[0011] The waxing device includes an automatic spray gun, a fixed bracket for mounting and securing the automatic spray gun, and a lifting device for driving the fixed bracket up and down. The lifting device includes a transmission mechanism, a ball screw assembly, a second servo motor controlled by a PLC controller, and a guide bearing module controlled by the ball screw assembly to achieve lifting. The fixed bracket includes a spray gun mounting base and an adjustment arm. The automatic spray gun is mounted on the upper end of the adjustment arm, and the lower end of the adjustment arm is rotatably mounted on the spray gun mounting base. The spray gun mounting base is mounted on the guide bearing module. The transmission mechanism is connected to the second servo motor and the ball screw assembly, respectively, and is driven by the second servo motor to drive the ball screw assembly. The guide bearing module is driven by the ball screw assembly to achieve lifting. The feed port of the automatic spray gun is connected to the pressure device, and the gas inlet of the automatic spray gun is connected to the pneumatic solenoid valve. The waxing device executes the PLC controller program commands through the second servo motor to complete the spraying operation. The spraying speed can be controlled to adjust the amount of paste polishing wax coverage according to the height and shape of the product.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] 1. Fully automated system control: Automatic replenishment of materials when shortage occurs at each workstation, and linkage with the production line to achieve fully automated control. The total amount of consumables and working status are collected digitally, without human supervision, saving manpower;

[0014] 2. Quantitative wax spraying: can effectively and accurately control the amount of wax spraying, saving material costs;

[0015] 3. Uniform spraying: The spraying area is evenly covered, and the spraying angle and coverage range are adjustable. It can be applied to special products such as special-shaped pots or various corners, effectively improving product quality stability;

[0016] 4. High spraying efficiency: The lifting device equipped with a servo motor improves the response and speed of the spraying action and increases the production line beat. In view of the high viscosity and easy agglomeration of the wax paste, a customized wax spray gun nozzle is used to ensure that the wax paste is well granulated and covered on the product during spraying. The working time of the lifting device and the solenoid valve is controlled by the program to ensure the quantitative and spraying uniformity, thereby improving efficiency.

[0017] 5. Small size of the equipment: The working position of the equipment is small and can be flexibly adjusted. It can be directly installed on the production line equipment to save floor space. The compact structure allows the spraying to be closer to the product without interfering with the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of Example 1 of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the wax adding device in Example 1 of the present invention.

[0020] Figure 3 This is a structural diagram of Example 2 of the present invention.

[0021] The meanings of the reference numerals in the figure are as follows: 1. wax storage tank; 11. wax adding port; 12. first wax outlet; 13. first safety valve; 14. first material level detection mechanism; 141. first upper material level sensor; 142. first lower material level sensor; 15. first regulating valve; 16. mixer; 17. stirring paddle; 18. first manual ball valve; 19. fifth one-way valve; 2. pressure barrel; 21. second wax outlet; 22. second safety valve; 23. second regulating valve; 24. second material level detection mechanism; 241. second upper material level sensor; 242. second lower material level sensor; 25. pneumatic ball valve; 3. pneumatic three-way valve; 4. screw Rod pump; 41. Screw pump body; 42. First servo motor; 43. Third one-way valve; 44. Back pressure valve; 51. Automatic spray gun; 52. Fixed bracket; 53. Second servo motor; 54. Transmission mechanism; 55. Ball screw assembly; 56. Guide bearing module; 6. External air source; 7. Pneumatic solenoid valve; 8. Third regulating valve; 9. Second manual ball valve; 10. First filter valve; 20. First one-way valve; 30. Third manual ball valve; 40. Second one-way valve; 50. Fourth manual ball valve; 60. Second filter valve; 70. Fourth one-way valve; 80. Fifth manual ball valve; 90. Pot products to be polished. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1

[0024] See Figure 1 and Figure 2 , which is an automatic waxing system for pots and pans, including a control system and a wax storage tank 1, a pressure device, a wax adding device, and an external air source 6 controlled by the control system; the wax storage tank 1 stores paste polishing wax, the pressure device is connected to the wax storage tank 1 and the wax adding device respectively, and transports the paste polishing wax from the wax storage tank 1 to the wax adding device; the external air source 6 is connected to the wax storage tank 1 and the wax adding device respectively; the wax adding device is aimed at the pot product 90 to be polished.

[0025] This device uses a paste polishing wax with a higher concentration to replace water wax or solid wax to improve the polishing effect. The paste polishing wax is sprayed directly on the product through a pressure device and a wax adding device, thereby preventing the wax from flying away by the high-speed rotating polishing wheel and avoiding the problem of uneven spraying and waste of water wax; the external air source 6 can provide a certain air pressure to ensure that the paste polishing wax is smoothly supplied to the pressure device, and the external air source 6 can provide spraying force for the wax adding device.

[0026] The wax storage tank 1 includes a tank body and a tank lid covering the tank body. The tank body is provided with a wax adding port 11, a first valve for controlling the opening and closing of the wax adding port 11, a first wax outlet 12, and a second valve for controlling the opening and closing of the first wax outlet 12. The tank lid is provided with a first air inlet, a first safety valve 13, and a first material level detection mechanism 14 for detecting the storage status of the paste polishing wax in the wax storage tank 1. The first air inlet is connected to an external air source 6, and the tank body and the tank lid are installed by a lock. The control system includes a PLC controller, a pneumatic solenoid valve 7 controlled by the PLC controller, and a third regulating valve 8. The wax adding device is connected to the pneumatic solenoid valve 7 and the third regulating valve 8 in sequence through a pipeline, and then connected to the external air source 6. The wax adding port 11 is used to add paste polishing wax, and the first valve can be used to control the opening and closing of the wax adding port 11. The first wax outlet 12 serves as a channel for the outflow of the paste polishing wax and is connected to a pressure device through a pipeline. The second valve is used to control the opening and closing of the second wax outlet 21. The wax inlet 11 is used to add polishing wax paste. A first valve controls the opening and closing of the wax inlet 11, allowing wax addition or sealing to maintain pressure. The first air inlet is connected to an external air source 6, which provides a certain pressure to the wax storage tank 1, ensuring smooth delivery of the polishing wax paste to the pressure device. A first safety valve 13 acts as a safety device, providing pressure relief when excessive pressure is present in the wax storage tank 1.

[0027] The first material level detection mechanism 14 includes a first upper material level sensor 141 and a first lower material level sensor 142. These sensors are fixedly attached to the tank lid, with their lower ends extending into the tank body. The lower end of the first upper material level sensor 141 is higher than the lower end of the first lower material level sensor 142. A first sealing ring is provided at the connection between the tank body and the lid. The wax storage tank 1 also includes a first regulating valve 15, a stirrer 16, and a first manual ball valve 18. The stirrer 16 and the first manual ball valve 18 are each mounted on the tank lid. A stirring paddle 17 is provided on the rotating shaft of the stirrer 16 and is located within the wax storage tank 1. The first wax outlet 12 is connected to the external air source 6 via the first regulating valve 15. The first upper material level sensor 141 and the first lower material level sensor 142 work together to detect whether the paste polishing wax in the wax storage tank 1 is full or empty. The provision of the first sealing ring ensures the airtightness of the wax storage tank 1. The arrangement of the agitator 16 and the stirring paddle 17 can evenly mix the paste polishing wax, which is conducive to improving the spraying quality. The agitator 16 is detected and controlled by a PLC controller.

[0028] The pressure device is a pressure barrel 2, which includes a barrel body and a barrel cover covering the barrel body; the barrel body is provided with a second wax outlet 21 and a third valve for controlling the opening and closing of the second wax outlet 21, and a pneumatic three-way valve 3 is installed outside the second wax outlet 21. The mouth of the pneumatic three-way valve 3 is respectively connected to the first wax outlet 12 of the wax storage tank 1, the second wax outlet 21 of the pressure barrel 2, and the wax adding device; the barrel cover is provided with a second air inlet, a second safety valve 22, a second regulating valve 23 and a second material level detection mechanism 24 for detecting the storage status of the paste polishing wax in the pressure barrel 2, and the second air inlet is connected to the external air source 6; the barrel body and the barrel cover are installed by a lock; one end of the second regulating valve 23 is connected to the second air inlet, and the other end is connected to the pipeline between the third regulating valve 8 and the external air source 6, and the external air source 6 includes a positive pressure air source and a negative pressure air source, and the positive pressure air source and the negative pressure air source are controlled and switched by the control system. The positive pressure gas source and the negative pressure gas source can maintain positive pressure or negative pressure in the pressure barrel 2. The second safety valve 22 is a safety device that provides pressure relief protection when the pressure in the pressure barrel 2 is too high.

[0029] The second material level detection mechanism 24 includes a second upper material level sensor 241 and a second lower material level sensor 242. These sensors are fixedly attached to the barrel lid, with their lower ends extending into the barrel body. The lower end of the second upper material level sensor 241 is higher than the lower end of the second lower material level sensor 242. A second sealing ring is provided at the connection between the barrel body and the barrel lid. The barrel lid is also equipped with a pneumatic ball valve 25. The pipeline between the first wax outlet 12 and the pneumatic three-way valve 3 is connected in sequence to a second manual ball valve 9, a first filter valve 10, a first check valve 20, and a third manual ball valve 30. The outlet of the first check valve 20 is directed toward the pneumatic three-way valve 3. A second check valve 40 is provided in the pipeline between the pneumatic three-way valve 3 and the wax adding device. The outlet of the second check valve 40 is directed toward the wax adding device. The second upper material level sensor 241 and the second lower material level sensor 242 work together to detect whether the paste polishing wax in the pressure barrel 2 is full or empty. The provision of the second sealing ring can ensure the airtightness inside the pressure barrel 2.

[0030] The wax adding device includes an automatic spray gun 51, a fixed bracket 52 for installing and fixing the automatic spray gun 51, and a lifting device for driving the fixed bracket 52 to rise and fall; the lifting device includes a transmission mechanism 54, a ball screw assembly 55, a second servo motor 53 controlled by a PLC controller, and a guide bearing module 56 controlled by the ball screw assembly 55 to realize the lifting function; the fixed bracket 52 includes a spray gun fixing seat and an adjustment arm, the automatic spray gun 51 is installed on the upper end of the adjustment arm, the lower end of the adjustment arm can be rotatably installed on the spray gun fixing seat, the spray gun fixing seat is installed on the guide bearing module 56, the transmission mechanism 54 is respectively connected to the second servo motor 53 and the ball screw assembly 55, and is driven by the second servo motor 53 to drive the ball screw assembly 55 to operate, and the guide bearing module 56 is driven by the ball screw assembly 55 to realize lifting; the feed port of the automatic spray gun 51 is connected to the pressure device, and the gas inlet of the automatic spray gun 51 is connected to the pneumatic solenoid valve 7. The waxing device executes the PLC controller program commands via the second servo motor 53 to complete the spraying action. The spraying speed can be controlled to adjust the amount of paste polishing wax coverage according to the different heights and shapes of the product. In the lifting device of this embodiment, the transmission mechanism 54 can be selected from a synchronous pulley and a synchronous belt. The ball screw assembly 55 consists of a screw, a guide nut mounted on the screw, and positioning plates at both ends of the screw. The screw is linked to the second servo motor 53 through the synchronous pulley and synchronous belt of the transmission mechanism 54. This is all conventional technology and is not analyzed in detail. The guide bearing module 56 is a platform structure for mounting the spray gun holder. It is connected to the nut in the ball screw assembly 55 and rotates with the ball screw to achieve the lifting function.

[0031] Example 2

[0032] See Figure 3, is another automatic wax adding system for pots. The difference between Example 2 and Example 1 is that: the pressure device is a screw pump 4, which includes a screw pump body 41, a first servo motor 42 controlled by a PLC controller and used to control the screw pump body 41, a third one-way valve 43, and a back pressure valve 44; the inlet of the screw pump body 41 is connected to the first wax outlet 12 of the wax storage tank 1 through a pipeline; the pipeline between the first wax outlet 12 and the inlet of the screw pump body 41 is connected in sequence with a fourth manual ball valve 50, a second The filter valve 60, the fourth check valve 70, and the fifth manual ball valve 80 are connected. The outlet of the fourth check valve 70 is connected to the inlet of the screw pump body 41. The outlet of the screw pump body 41 is connected to the wax feeding device through the third check valve 43, and the outlet of the third check valve 43 is connected to the wax feeding device. The wax storage tank 1 is also equipped with a fifth check valve 19. One end of the backpressure valve 44 is connected to the pipeline between the third check valve 43 and the wax feeding device, and the other end is connected to the fifth check valve 19. The outlet of the fifth check valve 19 is connected to the wax storage tank 1. The first servo motor 42 outputs the rated torque and speed to maintain a stable output pressure of the paste polishing wax. If the pipeline pressure is excessive or the wax feeding device is clogged, the backpressure valve 44 automatically opens, returning the wax to the wax storage tank 1, and an alarm is triggered to shut down the machine for maintenance.

[0033] In this embodiment, the automatic spray gun 51 is a commercially available product, existing technology, and is relatively common in the spray coating field. Therefore, the detailed structure of the spray gun is not analyzed in detail. The automatic spray gun 51 can be purchased from: Mingli WA-101-ZP automatic spray gun 51 for ceramic spraying, Mingli WA-200-ZP automatic spray gun 51 for ceramic spraying, Mingli LPA-200 low-pressure automatic spray gun 51, Mingli LPA-101 low-pressure automatic spray gun 51, or Japan Technology Rongchen WA-101 automatic spray gun 51 reciprocating machine assembly line spray gun (multiple models are available). The automatic spray gun 51 includes a feed port, an atomization air port, and a spray gun switch air port. The feed port is connected to the pressure barrel 2 or screw pump 4. The spray gun switch air port is connected to the external air source 6 via a pneumatic solenoid valve 7. The atomization air port is connected to the atomizer. The automatic spray gun 51 can preset the feed pressure and atomization air pressure, adjust the spray gun's spray range, and control the spray gun's operating rhythm through the pneumatic solenoid valve 7. The position and angle of the spray gun can be adjusted by adjusting the adjustment arm, allowing the spray gun to spray wax at a more appropriate position and angle.

[0034] In this embodiment, the control system's PLC controller is connected to the first material level detection mechanism 14, the second material level detection mechanism 24, each safety valve, each regulating valve, the first servo motor 42, and the second servo motor 53. The PLC controller executes the preset program logic and executes the specified actions and states through signal feedback from each execution unit. The two material level detection mechanisms detect the amount of paste polishing wax inside and determine whether the machine is in the working state or the refilling state. The lifting device controls the second servo motor 53 to execute the cycle to the specified position via the PLC controller. The automatic spray gun 51 outputs a signal to the pneumatic solenoid valve 7 via the PLC controller, turning the automatic spray gun 51 on and off.

[0035] The above detailed description is a specific description of a feasible embodiment of the present invention. The embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or modification that does not depart from the present invention should be included in the patent scope of this case.

Claims

1. An automatic waxing system for pots, characterized by: The system comprises a control system, a wax storage tank, a pressure device, a wax adding device, and an external air source controlled by the control system; the wax storage tank stores paste polishing wax, the pressure device is connected to the wax storage tank and the wax adding device, and transports the paste polishing wax from the wax storage tank to the wax adding device; the external air source is connected to the wax storage tank and the wax adding device, and the wax adding device is aimed at the pot product to be polished; The wax storage tank includes a tank body and a tank cover covering the tank body, the tank body is provided with a wax adding port, a first valve for controlling the opening and closing of the wax adding port, a first wax outlet, and a second valve for controlling the opening and closing of the first wax outlet; the tank cover is provided with a first air inlet, a first safety valve and a first material level detection mechanism for detecting the storage status of the paste polishing wax in the wax storage tank, the first air inlet is connected to the external air source, and the tank body and the tank cover are installed by a lock; the control system includes a PLC controller, a pneumatic solenoid valve controlled by the PLC controller, and a third regulating valve; the wax adding device is connected to the pneumatic solenoid valve and the third regulating valve in sequence through a pipeline, and then connected to the external air source; The first material level detection mechanism includes a first upper material level sensor and a first lower material level sensor, which are fixedly connected to the tank cover, and their lower ends extend into the tank body. The height of the lower end of the first upper material level sensor is higher than the height of the lower end of the first lower material level sensor; a first sealing ring is provided at the mounting connection between the tank body and the tank cover; the wax storage tank also includes a first regulating valve, a stirrer, and a first manual ball valve; the stirrer and the first manual ball valve are respectively installed on the tank cover, and a stirring paddle is provided on the rotating shaft of the stirrer, and the stirring paddle is located in the wax storage tank; the first air inlet is connected to the external air source through the first regulating valve; The pressure device is a pressure barrel, which includes a barrel body and a barrel cover covering the barrel body; the barrel body is provided with a second wax outlet and a third valve for controlling the opening and closing of the second wax outlet, and a pneumatic three-way valve is installed outside the second wax outlet, and the ports of the pneumatic three-way valve are respectively connected to the first wax outlet of the wax storage tank, the second wax outlet of the pressure barrel, and the wax adding device; the barrel cover is provided with a second air inlet, a second safety valve, a second regulating valve and a second material level detection mechanism for detecting the storage status of the paste polishing wax in the pressure barrel, and the second air inlet is connected to the external air source; the barrel body and the barrel cover are connected by a lock. Installation; one end of the second regulating valve is connected to the second air inlet, and the other end thereof is connected to the pipeline between the third regulating valve and the external air source, the external air source includes a positive pressure air source and a negative pressure air source, and the positive pressure air source and the negative pressure air source are controlled and switched by the control system; the pipeline between the first wax outlet and the pneumatic three-way valve is connected with the second manual ball valve, the first filter valve, the first one-way valve, and the third manual ball valve in sequence, and the outlet of the first one-way valve points to the pneumatic three-way valve; a second one-way valve is provided on the pipeline between the pneumatic three-way valve and the wax adding device, and the outlet of the second one-way valve points to the wax adding device.

2. The automatic waxing system for pots according to claim 1, characterized in that: The second material level detection mechanism includes a second upper material level sensor and a second lower material level sensor. The second upper material level sensor and the second lower material level sensor are fixedly connected to the barrel cover, and their lower ends extend into the barrel body. The height of the lower end of the second upper material level sensor is higher than the height of the lower end of the second lower material level sensor; a second sealing ring is provided at the installation connection between the barrel body and the barrel cover; the barrel cover is also provided with a pneumatic ball valve.

3. The automatic waxing system for pots according to claim 1, characterized in that: The wax adding device includes an automatic spray gun, a fixed bracket for installing and fixing the automatic spray gun, and a lifting device for driving the fixed bracket to lift and lower; the lifting device includes a transmission mechanism, a ball screw assembly, a second servo motor controlled by a PLC controller, and a guide bearing module controlled by the ball screw assembly to realize the lifting function; the fixed bracket includes a spray gun fixing seat and an adjustment arm, the automatic spray gun is installed on the upper end of the adjustment arm, the lower end of the adjustment arm can be rotatably mounted on the spray gun fixing seat, and the spray gun fixing seat is installed on the guide bearing module, the transmission mechanism is respectively connected to the second servo motor and the ball screw assembly, and is driven by the second servo motor to drive the ball screw assembly to operate, and the guide bearing module is driven by the ball screw assembly to realize lifting and lowering; the feed port of the automatic spray gun is connected to the pressure device, and the gas inlet of the automatic spray gun is connected to the pneumatic solenoid valve.

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