阅读说明：本技术 一种锅类自动加蜡系统 (Automatic wax system that adds of pot class ) 是由 陈丕立 梁为栋 刘裕鹏 王勇杰 陈梓成 温文基 梁绍明 曾国梁 于 2021-07-29 设计创作，主要内容包括：本发明公开了一种锅类自动加蜡系统,包括控制系统以及由控制系统控制的储蜡罐、压力装置、加蜡装置、外接气源；所述储蜡罐内储存有膏状抛光蜡,所述压力装置分别与所述储蜡罐、所述加蜡装置连接,并将膏状抛光蜡从所述储蜡罐输送至所述加蜡装置内；所述外接气源分别与所述储蜡罐、所述加蜡装置连接；所述加蜡装置对准待抛光的锅类产品。本系统利用浓度较高的膏状抛光蜡替代水蜡或固体蜡,提升抛光效果,通过压力装置及加蜡装置,将膏状抛光蜡直接喷在产品上,避免高速旋转的抛光轮将蜡飞走,避免水蜡的喷洒不均及浪费的问题；本系统可进行全自动化控制,定量精准,喷涂效率高,喷涂面积覆盖均匀。(The invention discloses an automatic wax adding system for pots, which comprises a control system, a wax storage tank, a pressure device, a wax adding device and an external air source, wherein the wax storage tank, the pressure device, the wax adding device and the external air source are controlled by the control system; the wax storage tank is internally stored with pasty polishing wax, the pressure device is respectively connected with the wax storage tank and the wax adding device, and the pasty polishing wax is conveyed from the wax storage tank to the wax adding device; the external air source is respectively connected with the wax storage tank and the wax adding device; the wax adding device is aligned with the pot product to be polished. The system utilizes the pasty polishing wax with higher concentration to replace water wax or solid wax, improves the polishing effect, directly sprays the pasty polishing wax on a product through the pressure device and the wax adding device, avoids the wax flying away by the polishing wheel rotating at high speed, and avoids the problems of uneven spraying and waste of the water wax; the system can be fully automatically controlled, and has the advantages of accurate quantification, high spraying efficiency and uniform spraying area coverage.)

1. The utility model provides an automatic wax system that adds of pot class which characterized in that: comprises a control system, a wax storage tank, a pressure device, a wax adding device and an external air source, wherein the wax storage tank, the pressure device, the wax adding device and the external air source are controlled by the control system; the wax storage tank is internally stored with pasty polishing wax, the pressure device is respectively connected with the wax storage tank and the wax adding device, and the pasty polishing wax is conveyed from the wax storage tank to the wax adding device; the external air source is respectively connected with the wax storage tank and the wax adding device; the wax adding device is aligned with the pot product to be polished.

2. The automatic pot waxing system according to claim 1, wherein: the wax storage tank comprises a tank body and a tank cover for covering the tank body, and the tank body is provided with a wax adding opening, a first valve for controlling the wax adding opening to be opened and closed, a first wax outlet and a second valve for controlling the first wax outlet to be opened and closed; 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 condition of the paste polishing wax in the wax storage tank, the first air inlet is connected with the external air source, and the tank body and the tank cover are installed through a lock catch; the control system comprises a PLC controller, a pneumatic electromagnetic valve controlled by the PLC controller and a third regulating valve; the wax adding device is connected with the pneumatic electromagnetic valve and the third regulating valve in sequence through pipelines and then is connected with an external air source.

3. The automatic pot waxing system according to claim 2, wherein: the first material level detection mechanism comprises a first material loading level sensor and a first material dropping level sensor, the first material loading level sensor and the first material dropping level sensor are fixedly connected to the tank cover, the lower ends of the first material loading level sensor and the first material dropping level sensor extend into the tank body, and the lower end of the first material loading level sensor is higher than the lower end of the first material dropping level sensor; a first sealing ring is arranged at the mounting connection part of the tank body and the tank cover; the wax storage tank also comprises a first regulating valve, a stirrer and a first manual ball valve; the stirring machine and the first manual ball valve are respectively arranged on the tank cover, and a stirring paddle is arranged on a rotating shaft of the stirring machine and is positioned in the wax storage tank; the first wax outlet is connected with the external air source through the first regulating valve.

4. The automatic wax adding system for pots of claim 3, wherein: the pressure device is a pressure barrel, and the pressure barrel comprises 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, a pneumatic three-way valve is mounted outside the second wax outlet, and the ports of the pneumatic three-way valve are respectively connected with 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 condition of the paste polishing wax in the pressure barrel, and the second air inlet is connected with the external air source; the barrel body and the barrel cover are installed through a lock catch; one end of the second regulating valve is connected with the second air inlet, the other end of the second regulating valve is connected into a pipeline between the third regulating valve and an external air source, the external air source comprises 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.

5. The automatic pot waxing system according to claim 4, wherein: the second material level detection mechanism comprises a second material loading level sensor and a second material unloading level sensor, the second material loading level sensor and the second material unloading level sensor are fixedly connected to the barrel cover, the lower ends of the second material loading level sensor and the second material unloading level sensor extend into the barrel body, and the height of the lower end of the second material loading level sensor is higher than that of the lower end of the second material unloading level sensor; a second sealing ring is arranged at the mounting connection part of the barrel body and the barrel cover; the barrel cover is also provided with a pneumatic ball valve; a pipeline between the first wax outlet and the pneumatic three-way valve is sequentially connected with a second manual ball valve, a first filter valve, a first one-way valve and a third manual ball valve, and an outlet of the first one-way valve points to the pneumatic three-way valve; and a second one-way valve is arranged on a pipeline between the pneumatic three-way valve and the wax adding device, and an outlet of the second one-way valve points to the wax adding device.

6. The automatic wax adding system for pots of claim 3, wherein: the pressure device is a screw pump, and the screw pump comprises a screw pump body, a first servo motor, a third one-way valve and a back pressure valve, wherein the first servo motor, the third one-way valve and the back pressure valve are controlled by the PLC and are used for controlling the screw pump body; the inlet of the screw pump body is connected with the first wax outlet of the wax storage tank through a pipeline; a pipeline between the first wax outlet and the inlet of the screw pump body is sequentially connected with a fourth manual ball valve, a second filter valve, a fourth one-way valve and a fifth manual ball valve, 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 with 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 further provided with a fifth one-way valve, one end of the back pressure valve is connected to a pipeline between the third one-way valve and the wax adding device, the other end of the back pressure valve is connected with the fifth one-way valve, and the outlet of the fifth one-way valve points to the wax storage tank.

7. The automatic pot waxing system according to claim 2, wherein: the wax adding device comprises an automatic spray gun, a fixed support for installing and fixing the automatic spray gun and a lifting device for driving the fixed support to lift; the lifting device comprises a transmission mechanism, a ball screw assembly, a second servo motor controlled by a PLC (programmable logic controller) and a guide bearing module controlled by the ball screw assembly to realize a lifting function; the automatic spray gun is arranged at the upper end of the adjusting arm, the lower end of the adjusting arm is rotatably arranged on the spray gun fixing seat, the spray gun fixing seat is arranged on the guide bearing module, the transmission mechanism is respectively connected with the second servo motor and the ball screw assembly and is driven by the second servo motor to drive the ball screw assembly to run, and the guide bearing module is driven by the ball screw assembly to realize lifting; the feed inlet of the automatic spray gun is connected with the pressure device, and the gas inlet of the automatic spray gun is connected with the pneumatic electromagnetic valve.

Technical Field

The invention relates to the technical field of equipment related to a stainless steel pot polishing process, in particular to an automatic wax adding system for pots.

Background

When the stainless steel product is polished, in order to ensure the polishing effect, a proper amount of polishing wax needs to be added while polishing. The traditional mode mainly has two types: the first is to add water wax (polishing wax with a concentration of 30% or less), supply the water wax to a spray gun by using a pressure barrel to generate pressure, and spray the water wax to a position where a product is attached to a polishing wheel during polishing by the spray gun. Although the water wax is simple to use and easy to automate, the water wax has the following defects: firstly, the polishing quality is relatively poor due to the relatively low concentration; secondly, because the polishing wheel rotates at a high speed, the sprayed wax is difficult to adhere to the polishing wheel, and because the wax gun needs to cover the whole product and needs a position (more than 30CM) far away from the product, most of the polishing wax is thrown away by the polishing wheel or directly sprayed to other places by the wax gun, so that the waste is serious, and the polishing consumable result is high. Secondly, adding solid wax, sticking the wax on a polishing wheel by using a solid wax rod, and grinding and melting the wax rod in the polishing wheel by using the polishing wheel rotating at a high speed. The solid wax mode is used, the polishing wax has high utilization rate and good polishing quality, but the wax rod needs to be attached to the polishing wheel, and the polishing wheel rotates at high speed and is worn, so that the wax adding device is complex and high in cost. And because the length of the wax rod is usually not more than 50CM, the wax rod needs to be replaced frequently, and the manpower result is increased.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide an automatic wax adding system for pots.

The invention is realized by the following technical scheme: an automatic wax adding system for pots comprises a control system, a wax storage tank, a pressure device, a wax adding device and an external air source, wherein the wax storage tank, the pressure device, the wax adding device and the external air source are controlled by the control system; the wax storage tank is internally stored with pasty polishing wax, the pressure device is respectively connected with the wax storage tank and the wax adding device, and the pasty polishing wax is conveyed from the wax storage tank to the wax adding device; the external air source is respectively connected with the wax storage tank and the wax adding device; the wax adding device is aligned with the pot product to be polished.

The device utilizes the pasty polishing wax with higher concentration to replace water wax or solid wax, so that the polishing effect is improved, the pasty polishing wax is directly sprayed on a product through the pressure device and the wax adding device, the phenomenon that the wax is splashed away by the polishing wheel rotating at high speed is avoided, and the problems of uneven spraying and waste of the water wax are avoided; the external air source can provide certain air pressure to enable the paste polishing wax to be smoothly supplied to the pressure device, and the external air source can provide spraying force for the wax adding device.

The wax storage tank comprises a tank body and a tank cover for covering the tank body, and the tank body is provided with a wax adding opening, a first valve for controlling the wax adding opening to be opened and closed, a first wax outlet and a second valve for controlling the first wax outlet to be opened and closed; 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 condition of the paste polishing wax in the wax storage tank, the first air inlet is connected with the external air source, and the tank body and the tank cover are installed through a lock catch; the control system comprises a PLC controller, a pneumatic electromagnetic valve controlled by the PLC controller and a third regulating valve; the wax adding device is connected with the pneumatic electromagnetic valve and the third regulating valve in sequence through pipelines and then is connected with an external air source. The wax adding port is used for adding paste polishing wax, and the first valve can be used for controlling the opening and the closing of the wax adding port. The first wax outlet is used as a passage for the outflow of the pasty polishing wax, is connected with a pressure device through a pipeline, and the second valve is used for controlling the opening and closing of the second wax outlet. The first air inlet is connected with an external air source and used for providing certain pressure for the wax storage tank, so that the paste polishing wax can be smoothly supplied to the pressure device. The first safety valve is used as a safety device, and pressure relief protection is carried out when the pressure in the wax storage tank is too high.

The first material level detection mechanism comprises a first material loading level sensor and a first material dropping level sensor, the first material loading level sensor and the first material dropping level sensor are fixedly connected to the tank cover, the lower ends of the first material loading level sensor and the first material dropping level sensor extend into the tank body, and the lower end of the first material loading level sensor is higher than the lower end of the first material dropping level sensor; a first sealing ring is arranged at the mounting connection part of the tank body and the tank cover; the wax storage tank also comprises a first regulating valve, a stirrer and a first manual ball valve; the stirring machine and the first manual ball valve are respectively arranged on the tank cover, and a stirring paddle is arranged on a rotating shaft of the stirring machine and is positioned in the wax storage tank; the first wax outlet is connected with the external air source through the first regulating valve. The first feeding level sensor and the first discharging level sensor are matched to detect whether the paste polishing wax in the wax storage tank is full or used up. The arrangement of the first sealing ring can ensure the airtightness of the wax storage tank. The setting of mixer and stirring rake can be to paste polishing wax misce bene, is favorable to improving spraying quality.

The pressure device is a pressure barrel, and the pressure barrel comprises 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, a pneumatic three-way valve is mounted outside the second wax outlet, and the ports of the pneumatic three-way valve are respectively connected with 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 condition of the paste polishing wax in the pressure barrel, and the second air inlet is connected with the external air source; the barrel body and the barrel cover are installed through a lock catch; one end of the second regulating valve is connected with the second air inlet, the other end of the second regulating valve is connected into a pipeline between the third regulating valve and an external air source, the external air source comprises 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 air source and the negative pressure air source can keep positive pressure or negative pressure in the pressure barrel. The second safety valve is used as a safety device for pressure relief protection when the pressure in the pressure barrel is too high.

The second material level detection mechanism comprises a second material loading level sensor and a second material unloading level sensor, the second material loading level sensor and the second material unloading level sensor are fixedly connected to the barrel cover, the lower ends of the second material loading level sensor and the second material unloading level sensor extend into the barrel body, and the height of the lower end of the second material loading level sensor is higher than that of the lower end of the second material unloading level sensor; a second sealing ring is arranged at the mounting connection part of the barrel body and the barrel cover; the barrel cover is also provided with a pneumatic ball valve; a pipeline between the first wax outlet and the pneumatic three-way valve is sequentially connected with a second manual ball valve, a first filter valve, a first one-way valve and a third manual ball valve, and an outlet of the first one-way valve points to the pneumatic three-way valve; and a second one-way valve is arranged on a pipeline between the pneumatic three-way valve and the wax adding device, and an outlet of the second one-way valve points to the wax adding device. And the second feeding level sensor and the second discharging level sensor are matched to detect whether the paste polishing wax in the pressure barrel is full or used up. The arrangement of the second sealing ring can ensure the airtightness in the pressure barrel.

The pressure device is a screw pump, and the screw pump comprises a screw pump body, a first servo motor, a third one-way valve and a back pressure valve, wherein the first servo motor, the third one-way valve and the back pressure valve are controlled by the PLC and are used for controlling the screw pump body; the inlet of the screw pump body is connected with the first wax outlet of the wax storage tank through a pipeline; a pipeline between the first wax outlet and the inlet of the screw pump body is sequentially connected with a fourth manual ball valve, a second filter valve, a fourth one-way valve and a fifth manual ball valve, 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 with 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 further provided with a fifth one-way valve, one end of the back pressure valve is connected to a pipeline between the third one-way valve and the wax adding device, the other end of the back pressure valve is connected with the fifth one-way valve, and the outlet of the fifth one-way valve points to the wax storage tank. Rated torque and rotating speed are output through the first servo motor, the output pressure of the paste polishing wax is kept stable, if the pipeline pressure is too high or a wax adding device is blocked, the back pressure valve is automatically opened, the paste polishing wax flows back to the wax storage tank, and the paste polishing wax is alarmed, shut down and overhauled.

The wax adding device comprises an automatic spray gun, a fixed support for installing and fixing the automatic spray gun and a lifting device for driving the fixed support to lift; the lifting device comprises a transmission mechanism, a ball screw assembly, a second servo motor controlled by a PLC (programmable logic controller) and a guide bearing module controlled by the ball screw assembly to realize a lifting function; the automatic spray gun is arranged at the upper end of the adjusting arm, the lower end of the adjusting arm is rotatably arranged on the spray gun fixing seat, the spray gun fixing seat is arranged on the guide bearing module, the transmission mechanism is respectively connected with the second servo motor and the ball screw assembly and is driven by the second servo motor to drive the ball screw assembly to run, and the guide bearing module is driven by the ball screw assembly to realize lifting; the feed inlet of the automatic spray gun is connected with the pressure device, and the gas inlet of the automatic spray gun is connected with the pneumatic electromagnetic valve. The wax adding device executes a program command of a PLC (programmable logic controller) through a second servo motor to finish the spraying action, and the spraying speed can be controlled to adjust the coverage of the paste polishing wax according to different heights and shapes of products.

Compared with the prior art, the invention has the advantages that:

1. full-automatic system control: the automatic supply of the material shortage of each work site is realized, the automatic supply is linked with a production line to realize full-automatic control, the total amount of the consumed materials and the working condition are collected in a data mode, the operation is unattended, and the labor is saved;

2. and (3) quantitative wax spraying: the wax spraying amount can be effectively and accurately controlled, and the material cost is saved;

3. and (3) uniform spraying: the spraying area is uniformly covered, the spraying angle and the coverage range are adjustable, and the quality stability of products can be effectively improved aiming at special products such as special-shaped pots or various corners;

4. the spraying efficiency is high: the servo motor is matched with the lifting device, so that the response and the speed of spraying actions are improved, and the production line beat is improved; aiming at the characteristic that the cream wax is high in viscosity and easy to agglomerate, a customized wax spraying gun nozzle is adopted, so that the cream wax can be well granulated and covered on a product in the spraying process, the working time of a lifting device and an electromagnetic valve is controlled by a program, the quantification and the spraying uniformity are ensured, and the efficiency is improved.

5. The equipment volume is small: the volume of the working position of the equipment is small, the equipment can be flexibly adjusted, and the equipment can be directly arranged on production line equipment, so that the occupied area is saved; and a compact structure mode is adopted, so that the spraying can be closer to a product and the normal operation of the equipment is not interfered.

Drawings

FIG. 1 is a schematic structural view of example 1 of the present invention;

FIG. 2 is a schematic view of a wax adding apparatus according to embodiment 1 of the present invention

Fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.

The reference numerals in the drawings mean: 1. a wax storage tank; 11. adding a wax opening; 12. a first wax outlet; 13. a first safety valve; 14. a first level detection mechanism; 141. a first loading level sensor; 142. a first charge level sensor; 15. a first regulating valve; 16. a blender; 17. a stirring paddle; 18. a first manual ball valve; 19. a fifth check valve; 2. a pressure barrel; 21. a second wax outlet; 22. a second relief valve; 23. a second regulating valve; 24. a second level detection mechanism; 241. a second material loading level sensor; 242. a second blanking position sensor; 25. a pneumatic ball valve; 3. a pneumatic three-way valve; 4. a screw pump; 41. a screw pump body; 42. a first servo motor; 43. a third check valve; 44. a back pressure valve; 51. an automatic spray gun; 52. fixing a bracket; 53. a second servo motor; 54. a transmission mechanism; 55. a ball screw assembly; 56. a guiding bearing module; 6. connecting an external air source; 7. a pneumatic solenoid valve; 8. a third regulating valve; 9. a second manual ball valve; 10. a first filter valve; 20. a first check valve; 30. a third manual ball valve; 40. a second one-way valve; 50. a fourth manual ball valve; 60. a second filter valve; 70. a fourth check valve; 80. a fifth manual ball valve; 90. pot products to be polished.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and detailed description.

Example 1

Referring to fig. 1 and 2, an automatic wax adding system for pots comprises a control system, a wax storage tank 1 controlled by the control system, a pressure device, a wax adding device, and an external air source 6; the wax storage tank 1 is internally stored with pasty polishing wax, the pressure device is respectively connected with the wax storage tank 1 and the wax adding device, and the pasty polishing wax is conveyed into the wax adding device from the wax storage tank 1; the external air source 6 is respectively connected with the wax storage tank 1 and the wax adding device; the waxing device is aimed at the pan product 90 to be polished.

The device utilizes the pasty polishing wax with higher concentration to replace water wax or solid wax, so that the polishing effect is improved, the pasty polishing wax is directly sprayed on a product through the pressure device and the wax adding device, the phenomenon that the wax is splashed away by the polishing wheel rotating at high speed is avoided, and the problems of uneven spraying and waste of the water wax are avoided; the external air source 6 can provide certain air pressure to enable the paste polishing wax to be smoothly supplied to the pressure device, and the external air source 6 can provide spraying force for the wax adding device.

The wax storage tank 1 comprises a tank body and a tank cover for covering the tank body, wherein the tank body is provided with a wax adding opening 11, a first valve for controlling the opening and closing of the wax adding opening 11, a first wax outlet 12 and a second valve for controlling the opening and closing of the first wax outlet 12; the tank cover is provided with a first air inlet, a first safety valve 13 and a first material level detection mechanism 14 for detecting the storage condition of the paste polishing wax in the wax storage tank 1, the first air inlet is connected with an external air source 6, and the tank body and the tank cover are installed through a lock catch; the control system comprises a PLC controller, a pneumatic electromagnetic valve 7 controlled by the PLC controller and a third regulating valve 8; the wax adding device is connected with an external air source 6 after being sequentially connected with a pneumatic electromagnetic valve 7 and a third regulating valve 8 through pipelines. The wax adding port 11 is used for adding paste polishing wax, and the first valve can be used for controlling the opening and the closing of the wax adding port 11. The first wax outlet 12 is used as a passage for the outflow of the paste polishing wax, and is connected with a pressure device through a pipeline, and the second valve is used for controlling the opening and closing of the second wax outlet 21. The wax adding port 11 is used for adding paste polishing wax, and the first valve can control the wax adding port 11 to be opened and closed, so that the wax adding or sealing function is realized. The first air inlet is connected with an external air source 6 and used for providing certain pressure for the wax storage tank 1, so that the paste polishing wax can be smoothly supplied to the pressure device. The first safety valve 13 is used as a safety device for pressure relief protection when the pressure in the wax storage tank 1 is too high.

The first material level detecting mechanism 14 comprises a first material loading level sensor 141 and a first material unloading level sensor 142, the first material loading level sensor 141 and the first material unloading level sensor 142 are fixedly connected to the tank cover, the lower ends of the first material loading level sensor 141 and the first material unloading level sensor 142 extend into the tank body, and the height of the lower end of the first material loading level sensor 141 is higher than that of the lower end of the first material unloading level sensor 142; a first sealing ring is arranged at the mounting connection part of the tank body and the tank cover; the wax storage tank 1 also comprises a first regulating valve 15, a stirrer 16 and a first manual ball valve 18; the stirring machine 16 and the first manual ball valve 18 are respectively arranged on the tank cover, a rotating shaft of the stirring machine 16 is provided with a stirring paddle 17, and the stirring paddle 17 is positioned in the wax storage tank 1; the first wax outlet 12 is connected with the external air source 6 through a first regulating valve 15. The first feeding level sensor 141 and the first discharging level sensor 142 are used for detecting whether the paste polishing wax in the wax storage tank 1 is full or used up. The arrangement of the first sealing ring can ensure the airtightness of the wax storage tank 1. The setting of mixer 16 and stirring rake 17 can be to paste polishing wax misce bene, is favorable to improving spraying quality. The blender 16 is tested and controlled by the PLC controller.

The pressure device is a pressure barrel 2, and the pressure barrel 2 comprises 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, a pneumatic three-way valve 3 is arranged outside the second wax outlet 21, and the ports of the pneumatic three-way valve 3 are respectively connected with 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 condition of the paste polishing wax in the pressure barrel 2, and the second air inlet is connected with the external air source 6; the barrel body and the barrel cover are arranged through a lock catch; one end of the second regulating valve 23 is connected with the second air inlet, the other end of the second regulating valve is connected into a pipeline between the third regulating valve 8 and the external air source 6, the external air source 6 comprises 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 through the control system. The positive pressure air source and the negative pressure air source can keep positive pressure or negative pressure in the pressure barrel 2. The second safety valve 22 serves as a safety device for pressure relief protection when the pressure in the pressure tank 2 is too high.

The second material level detecting mechanism 24 comprises a second material loading level sensor 241 and a second material unloading level sensor 242, the second material loading level sensor 241 and the second material unloading level sensor 242 are fixedly connected to the barrel cover, the lower ends of the second material loading level sensor 241 extend into the barrel body, and the height of the lower end of the second material loading level sensor 241 is higher than that of the lower end of the second material unloading level sensor 242; a second sealing ring is arranged at the mounting connection part of the barrel body and the barrel cover; the barrel cover is also provided with a pneumatic ball valve 25; a pipeline between the first wax outlet 12 and the pneumatic three-way valve 3 is sequentially connected with a second manual ball valve 9, a first filter valve 10, a first one-way valve 20 and a third manual ball valve 30, and the outlet of the first one-way valve 20 points to the pneumatic three-way valve 3; and a second one-way valve 40 is arranged on a pipeline between the pneumatic three-way valve 3 and the wax adding device, and the outlet of the second one-way valve 40 points to the wax adding device. The second material loading level sensor 241 and the second material unloading level sensor 242 are used to detect whether the pressure barrel 2 is full or used up. The arrangement of the second sealing ring can ensure the airtightness in the pressure barrel 2.

The wax adding device comprises an automatic spray gun 51, a fixed support 52 for installing and fixing the automatic spray gun 51 and a lifting device for driving the fixed support 52 to lift; the lifting device comprises 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 comprises a spray gun fixed seat and an adjusting arm, the automatic spray gun 51 is arranged at the upper end of the adjusting arm, the lower end of the adjusting arm is rotatably arranged on the spray gun fixed seat, the spray gun fixed seat is arranged on a guide bearing module 56, a transmission mechanism 54 is respectively connected with a second servo motor 53 and a ball screw assembly 55 and is driven by the second servo motor 53 to drive the ball screw assembly 55 to run, and the guide bearing module 56 is driven by the ball screw assembly 55 to realize lifting; the feed inlet of the automatic spray gun 51 is connected with a pressure device, and the gas inlet of the automatic spray gun 51 is connected with the pneumatic electromagnetic valve 7. The wax adding device executes a PLC program command through the second servo motor 53 to finish the spraying action, and the spraying speed can be controlled according to different heights and different shapes of products to adjust the coverage of the paste polishing wax. In the lifting device of the embodiment, the transmission mechanism 54 can select a synchronizing wheel and a synchronizing belt, the ball screw assembly 55 comprises a screw rod, a guide nut installed on the screw rod, positioning plates at two ends of the screw rod, and the screw rod is linked with the second servo motor 53 through the synchronizing wheel and the synchronizing belt of the transmission mechanism 54, which are conventional technologies, and therefore, specific analysis is not performed. The guide bearing module 56 is a platform structure for mounting the spray gun fixing seat, is connected with a nut in the ball screw assembly 55, and rotates along with the ball screw to realize the lifting function.

Example 2

Referring to fig. 3, another automatic wax adding system for pots, embodiment 2 is different from embodiment 1 in that: the pressure device is a screw pump 4, and the screw pump 4 comprises a screw pump body 41, a first servo motor 42, a third one-way valve 43 and a back pressure valve 44, wherein the first servo motor 42, the third one-way valve 43 and the back pressure valve 44 are controlled by a PLC (programmable logic controller) and are used for controlling the screw pump body 41; the inlet of the screw pump body 41 is connected with the first wax outlet 12 of the wax storage tank 1 through a pipeline; a pipeline between the first wax outlet 12 and the inlet of the screw pump body 41 is sequentially connected with a fourth manual ball valve 50, a second filter valve 60, a fourth one-way valve 70 and a fifth manual ball valve 80, and the outlet of the fourth one-way valve 70 points to the inlet of the screw pump body 41; the outlet of the screw pump body 41 is connected with the wax adding device through a third one-way valve 43, and the outlet of the third one-way valve 43 points to the wax adding device; the wax storage tank 1 is also provided with a fifth one-way valve 19, one end of a backpressure valve 44 is connected to a pipeline between the third one-way valve 43 and the wax adding device, the other end of the backpressure valve is connected with the fifth one-way valve 19, and the outlet of the fifth one-way valve 19 points to the wax storage tank 1. The output pressure of the paste polishing wax is kept stable by the output rated torque and the rotation speed of the first servo motor 42, and if the pipeline pressure is too high or the wax adding device is blocked, the backpressure valve 44 is automatically opened and flows back to the wax storage tank 1, and the alarm is given to stop the machine for maintenance.

In this embodiment, the automatic spray gun 51 belongs to a commercially available product, and is a common product in the field of spraying in the prior art, and therefore, the detailed structure of the spray gun is not analyzed. The automatic spray gun 51 can be selected from: an automatic spray gun 51 for bright WA-101-ZP ceramic spraying, an automatic spray gun 51 for bright WA-200-ZP ceramic spraying, a bright LPA-200 low-pressure automatic spray gun 51, a bright LPA-101 low-pressure automatic spray gun 51 or a Japanese technical Chengning WA-101 automatic spray gun 51 shuttle line spray gun (several models are available). Automatic spray gun 51 includes that the feed inlet, atomizing connect the gas port, spray gun switch connect the gas port, and the feed inlet is connected with pressure bucket 2 or screw pump 4, and the spray gun switch connects the gas port to be connected with external air supply 6 through pneumatic solenoid valve 7, and the atomizing connects the gas port to be connected with the atomizer, and automatic spray gun 51 can predetermine feed pressure and atomizing atmospheric pressure, and the adjustment spray gun range of spouting is through pneumatic solenoid valve 7 control spray gun beat. The position and the angle of the spray gun are realized by adjusting the adjusting arm, so that the spray gun can spray wax on the product at a more proper position and angle.

In this embodiment, the PLC controller of the control system is connected to the first material level detecting mechanism 14, the second material level detecting mechanism 24, each safety valve, each regulating valve, the first servo motor 42, and the second servo motor 53, and executes a preset program logic, performs a designated action and state by signal feedback of each execution unit, detects the amount of the paste polishing wax inside the two material level detecting mechanisms, and determines whether the paste polishing wax is in an execution working state or a material supplement state. The lifting device controls the second servo motor 53 to perform circular work to a designated position through the PLC controller. The automatic spray gun 51 outputs a signal to the pneumatic electromagnetic valve 7 through the PLC controller to open or close the automatic spray gun 51.

The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention are intended to be included within the scope of the present invention.