Facial mask continuous spraying system

Abstract

The utility model discloses a continuous mask spraying system, which relates to the field of mask production and comprises a nozzle, a first storage tank, a second storage tank and a liquid level monitoring device. A first liquid supply electromagnetic valve is arranged between a liquid supply port of the first storage tank and a liquid inlet of the nozzle, a second liquid supply electromagnetic valve is arranged between a liquid supply port of the second storage tank and the liquid inlet of the nozzle, and the liquid level monitoring device is used for monitoring the liquid level of active liquid in the first storage tank and the liquid level of active liquid in the second storage tank. And when one storage tank performs spraying operation, the other storage tank can complete supplement of the active liquid, so that the situation that the operation of production equipment is interrupted due to the fact that liquid in a single storage tank is exhausted is avoided. The working efficiency of the equipment is improved, the requirement for a large storage tank is lowered, the occupied space and the manufacturing cost of the equipment are reduced, and meanwhile the stability and continuity of mask production are guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of facial mask production, and more specifically, to a continuous spraying system for facial masks. Background Technology

[0002] Once started, the mask production equipment needs to operate continuously without interruption. The spraying station is responsible for evenly spraying the active liquid of the effective substance onto the mask cloth. The spraying station needs to operate continuously with the mask equipment without interruption, otherwise it will affect the continuity of upstream and downstream production.

[0003] In the existing technology, to achieve long-term spraying, a large container is required to load the active liquid. The container must contain enough liquid for a single production run, which requires a large tank volume, resulting in a bulky and cumbersome tank that takes up a lot of space and increases the cost of the production process.

[0004] In summary, how to achieve continuous and uninterrupted spraying at the spraying station without encountering the aforementioned existing technologies is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a continuous film spraying system that effectively realizes continuous and uninterrupted spraying at the spraying station.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A continuous spraying system for face masks includes a nozzle, a first storage tank, and a second storage tank. The liquid supply port of the first storage tank and the liquid supply port of the second storage tank are both connected to the liquid inlet of the nozzle. A first liquid supply solenoid valve is provided between the liquid supply port of the first storage tank and the liquid inlet of the nozzle, and a second liquid supply solenoid valve is provided between the liquid supply port of the second storage tank and the liquid inlet of the nozzle.

[0008] A liquid level monitoring device is used to monitor the liquid level of the active liquid in the first storage tank and the second storage tank.

[0009] Preferably, the liquid level monitoring device includes a first liquid level gauge installed in the first storage tank and a second liquid level gauge installed in the second storage tank.

[0010] Preferably, a first inlet solenoid valve is provided at the inlet of the first storage tank, and a second inlet solenoid valve is provided at the inlet of the second storage tank. Both the inlets of the first and second storage tanks are connected to the active liquid filling system.

[0011] Preferably, it also includes a pressure supply module, which includes an access port connected to an air compressor, and the access port is connected to the pressure supply port of the first storage tank and the pressure supply port of the second storage tank respectively;

[0012] A first gas supply solenoid valve is provided between the pressure supply port of the first storage tank and the access port, and a second gas supply solenoid valve is provided between the pressure supply port of the second storage tank and the access port.

[0013] Preferably, the pressure supply module further includes a pressure regulator, which is disposed between the access port and the air compressor.

[0014] Preferably, it also includes a pressure relief module, which includes a first pressure relief port on the first storage tank, a first pressure relief solenoid valve disposed at the first pressure relief port, a second pressure relief port on the second storage tank, and a second pressure relief solenoid valve disposed at the second pressure relief port.

[0015] Preferably, both the first pressure relief solenoid valve and the second pressure relief solenoid valve are connected to an exhaust muffler.

[0016] Preferably, it also includes a cleaning module, the cleaning module comprising:

[0017] The first drain solenoid valve is installed at the drain port of the first storage tank;

[0018] The second drain solenoid valve is installed at the drain port of the second storage tank;

[0019] The first cleaning port is located on the first storage tank. The first cleaning port is connected to the cleaning water supply system. A first water supply solenoid valve is installed at the first cleaning port.

[0020] The second cleaning port is located on the second storage tank and is connected to the cleaning water supply system. A second water supply solenoid valve is installed at the second cleaning port.

[0021] Preferably, a first cleaning ball is provided on one side of the first cleaning port located inside the first storage tank, and a second cleaning ball is provided on one side of the second cleaning port located inside the second storage tank.

[0022] Preferably, the drain outlets of the first storage tank and the second storage tank are both connected to a return pipe, and the end of the return pipe opposite to the two drain outlets is connected to the active liquid supply source.

[0023] This invention provides a continuous mask spraying system that utilizes a dual-tank alternating liquid supply design. When the active liquid in one tank is about to run out, it automatically switches to the other tank to continue spraying, ensuring the continuity of the mask production process and avoiding interruptions to upstream and downstream processes due to liquid replacement shutdowns. It also avoids the problem of a single tank being too bulky and occupying too much floor space. Furthermore, the system incorporates a liquid level monitoring device linked to a solenoid valve for precise control, accurately monitoring the state of the active liquid in the tank and triggering a switching operation at the appropriate time. This significantly reduces manual intervention while improving the system's response speed and accuracy. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the continuous film spraying system in this embodiment.

[0026] The reference numerals in the figures include:

[0027] 1. First air supply solenoid valve; 2. First liquid level gauge; 3. First storage tank; 4. First liquid inlet solenoid valve; 5. First water supply solenoid valve; 6. First pressure relief solenoid valve; 7. First cleaning ball; 8. First liquid supply solenoid valve; 9. First drain solenoid valve;

[0028] 10. Second air supply solenoid valve; 11. Second liquid level gauge; 12. Second storage tank; 13. Second liquid inlet solenoid valve; 14. Second water supply solenoid valve; 15. Second pressure relief solenoid valve; 16. Second cleaning ball; 17. Second liquid supply solenoid valve; 18. Second liquid drain solenoid valve; 19. Nozzle. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar words used in this utility model do not indicate any order, quantity, or importance. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly. This application discloses a continuous mask spraying system.

[0031] The core of this invention is to provide a continuous spraying system for face masks.

[0032] Please refer to Figure 1 .

[0033] The continuous spraying system for face masks provided by this utility model includes a nozzle 19, a first storage tank 3, a second storage tank 12, and a liquid level monitoring device. The liquid supply port of the first storage tank 3 and the liquid supply port of the second storage tank 12 are both connected to the liquid inlet of the nozzle 19. A first liquid supply solenoid valve 8 is provided between the liquid supply port of the first storage tank 3 and the liquid inlet of the nozzle 19, and a second liquid supply solenoid valve 17 is provided between the liquid supply port of the second storage tank 12 and the liquid inlet of the nozzle 19. The liquid level monitoring device is used to monitor the liquid level of the active liquid in the first storage tank 3 and the second storage tank 12.

[0034] It should be noted that the nozzle 19 is positioned above the mask sheet during operation, and it sprays the active liquid onto the mask sheet in a uniform manner, without the nozzle 19 coming into contact with the mask sheet (the aforementioned active liquid is a liquid and is one of the effective substances in the mask).

[0035] In this application, a dual-tank liquid supply method is adopted, that is, the first tank 3 and the second tank 12 supply liquid to the nozzle 19 respectively. The liquid supply port of the first tank 3 is connected to the liquid inlet of the nozzle 19 through a connecting pipe, and a first liquid supply solenoid valve 8 is installed at the liquid supply port of the first tank 3 through the connecting pipe. The first liquid supply solenoid valve 8 is used to open and close the liquid supply port of the first tank 3. Similarly, the liquid supply port of the second tank 12 is connected to the liquid inlet of the nozzle 19 through another connecting pipe, and a second liquid supply solenoid valve 17 is installed at the liquid supply port of the second tank 12 through the other connecting pipe. The second liquid supply solenoid valve 17 is used to open and close the liquid supply port of the second tank 12. The liquid level monitoring device is used to monitor the liquid level of the active liquid in the first storage tank 3 and the second storage tank 12 in real time. Furthermore, the liquid level monitoring device is set with an upper detection liquid level and a lower detection liquid level. The upper detection liquid level is used to monitor whether the active liquid in the storage tank is full, while the lower detection liquid level is used to monitor whether the active liquid in the storage tank has been used up and whether the storage tank needs to be replaced.

[0036] During the production preparation stage, active liquid is filled into the first storage tank 3 and the second storage tank 12 respectively. When the liquid level monitoring device detects that the liquid level of the active liquid in the first storage tank 3 and the second storage tank 12 has reached the upper detection level, the filling is stopped. During the mask fabric spraying stage, either the first storage tank 3 or the second storage tank 12 is used to supply liquid to the nozzles 19. Taking the first storage tank 3 as an example, the first supply solenoid valve 8 is opened, while the second supply solenoid valve 17 remains closed. The active liquid is supplied to the nozzles 19 through the first storage tank 3 to complete the spraying operation. When the liquid level monitoring device detects that the active liquid level in the first storage tank 3 has reached the lower detection level, the second supply solenoid valve 17 is opened, and the active liquid is supplied to the nozzles 19 through the second storage tank 12. Simultaneously, the first supply solenoid valve 8 is closed. During the liquid supply process from the second storage tank 12, the first storage tank 3 is filled with active liquid until the liquid level monitoring device detects that the active liquid level in the first storage tank 3 has reached the upper detection level, at which point filling of the first storage tank 3 stops. This process is continuous, and by switching the supply of liquid to the nozzles 19 between the first storage tank 3 and the second storage tank 12, continuous and uninterrupted spraying at the spraying station is achieved.

[0037] The aforementioned continuous coating system for face masks effectively enables continuous coating of the mask fabric. During production, the dual-tank design allows one tank to be used for coating while the other replenishes the active liquid, preventing production interruptions due to a single tank running out of liquid. This alternating operation not only improves equipment efficiency but also reduces the need for large tanks, minimizing space requirements and manufacturing costs, while ensuring the stability and continuity of face mask production.

[0038] The continuous spraying system for face masks provided by this utility model will be described in more detail below with reference to the accompanying drawings and specific embodiments.

[0039] In one specific implementation, reference is made to... Figure 1 The liquid level monitoring device includes a first liquid level gauge 2 installed in the first storage tank 3 and a second liquid level gauge 11 installed in the second storage tank 12.

[0040] The first level gauge 2 is installed in the first storage tank 3 to monitor whether the level of the active liquid in the first storage tank 3 has reached the upper or lower detection level. The second level gauge 11 is installed in the second storage tank 12 to monitor whether the level of the active liquid in the second storage tank 12 has reached the upper or lower detection level. Through the first level gauge 2 and the second level gauge 11, the volume of the active liquid in the first storage tank 3 and the second storage tank 12 can be monitored in real time without affecting the normal operation of the system. This ensures that when the active liquid in either tank is about to run out, the system can be switched to the other tank for spraying operations, thus effectively guaranteeing the continuity and stability of the mask production process. At the same time, this precise level monitoring can also optimize the timing of active liquid replenishment, reduce resource waste, and improve equipment efficiency.

[0041] Optionally, the liquid level monitoring device can also use ultrasonic sensors (probe type or guided wave radar type). By installing ultrasonic sensors on the top of the first tank 3 and the second tank 12 respectively, high-frequency sound waves are emitted and reflected signals are received to monitor the liquid level in the first tank 3 and the second tank 12. Alternatively, photoelectric through-beam sensors can be used. By installing multiple sets of photoelectric through-beam sensors at preset liquid level heights (upper detection liquid level and lower detection liquid level) in the first tank 3 and the second tank 12 respectively, the difference in refractive index of light between liquid and air is used to trigger signals to monitor the liquid level in the first tank 3 and the second tank 12.

[0042] Based on any of the above embodiments, refer to Figure 1 A first inlet solenoid valve 4 is installed at the inlet of the first storage tank 3, and a second inlet solenoid valve 13 is installed at the inlet of the second storage tank 12. Both the inlets of the first storage tank 3 and the inlets of the second storage tank 12 are connected to the active liquid filling system.

[0043] Specifically, in order to further facilitate the filling of the first storage tank 3 and the second storage tank 12, a first inlet solenoid valve 4 is provided at the inlet of the first storage tank 3, and a second inlet solenoid valve 13 is provided at the inlet of the second storage tank 12.

[0044] When the liquid level monitoring device detects that the active liquid in the first storage tank 3 or the second storage tank 12 has reached the lower detection level, it opens the first inlet solenoid valve 4 or the second inlet solenoid valve 13 to fill the first storage tank 3 or the second storage tank 12. When the liquid level monitoring device detects that the active liquid in the first storage tank 3 or the second storage tank 12 has reached the upper detection level, it closes the first inlet solenoid valve 4 or the second inlet solenoid valve 13 to stop filling the first storage tank 3 or the second storage tank 12. The filling process is carried out by connecting to the active liquid filling system, which is a conventional active liquid filling system. By adopting the above scheme, independent control of the first storage tank 3 and the second storage tank 12 is achieved, allowing the active liquid to be replenished in the other storage tank while one tank is being sprayed, effectively improving the continuous operation capability of the system. In addition, by setting a solenoid valve at the inlet and connecting it to the active liquid filling system, not only is the operation process simplified, but the safety and accuracy of the active liquid filling process are also ensured, reducing the error and contamination risk caused by human intervention.

[0045] Based on any of the above embodiments, refer to Figure 1 The continuous spraying system for face masks also includes a pressure supply module, which includes an access port connected to an air compressor. The access port is connected to the pressure supply port of the first storage tank 3 and the pressure supply port of the second storage tank 12, respectively. A first air supply solenoid valve 1 is provided between the pressure supply port of the first storage tank 3 and the access port, and a second air supply solenoid valve 10 is provided between the pressure supply port of the second storage tank 12 and the access port.

[0046] To further improve the spraying effect of nozzle 19, a pressure supply module is added to the spraying system. Pressure supply ports are provided on the first storage tank 3 and the second storage tank 12, and the pressure supply ports are connected to the access ports of the air compressor, so as to supply pressure to the first storage tank 3 and the second storage tank 12 through the air compressor. A first air supply solenoid valve 1 is set at the connection between the first storage tank 3 and the access port, and a second air supply solenoid valve 10 is set at the connection between the second storage tank 12 and the access port, so as to open and close the pressure supply to the first storage tank 3 and the second storage tank 12.

[0047] When the first storage tank 3 supplies liquid to the nozzle 19, the first liquid supply solenoid valve 8 and the first gas supply solenoid valve 1 are opened. Under the pressure of the gas, the active liquid is sprayed onto the mask cloth in a mist form through the nozzle 19, completing the spraying operation. When the second storage tank 12 supplies liquid to the nozzle, the second liquid supply solenoid valve 17 and the second gas supply solenoid valve 10 are opened. Under the pressure of the gas, the active liquid is sprayed onto the mask cloth in a mist form through the nozzle 19, completing the spraying operation. By setting up a pressure supply module, an air compressor is used to provide pressure to the first and second storage tanks, ensuring that the active liquid can be smoothly delivered to the nozzle under pressure, completing the spraying action and improving the spraying effect.

[0048] Furthermore, the pressure supply module also includes a pressure regulator, which is located between the inlet port and the air compressor. This enables precise control of the spraying pressure of the active liquid in the storage tank. The pressure regulator can adjust the pressure from the air compressor according to actual needs, ensuring that the nozzle maintains a stable spraying effect under different operating conditions, avoiding uneven spraying caused by pressure fluctuations, and extending the overall service life of the equipment.

[0049] Furthermore, the continuous spraying system for the face mask also includes a pressure release module, which includes a first pressure release port on the first storage tank 3, a first pressure release solenoid valve 6 located at the first pressure release port, a second pressure release port on the second storage tank 12, and a second pressure release solenoid valve 15 located at the second pressure release port.

[0050] In order to facilitate subsequent filling of the first storage tank 3 and the second storage tank 12 based on the pressure supply module, a pressure relief module is further added. This is achieved by opening a first pressure relief port and a second pressure relief port on the first storage tank 3 and the second storage tank 12 respectively, and installing a first pressure relief solenoid valve 6 and a second pressure relief solenoid valve 15 at the first pressure relief port and the second pressure relief port respectively.

[0051] When the liquid level monitoring device detects that the active liquid level in the first storage tank 3 or the second storage tank 12 has reached the lower detection level and switching to filling is required, the corresponding first pressure release solenoid valve 6 or second pressure release solenoid valve 15 is opened first to release the pressure inside the storage tank. Then, the corresponding first liquid supply solenoid valve 8 or second liquid supply solenoid valve 17 is opened to fill the storage tank. By adopting the above technical solution, the residual pressure in the storage tank that has completed the spraying operation can be quickly released when switching storage tanks for spraying operations, avoiding liquid leakage or equipment damage due to excessive pressure, while ensuring the safety and efficiency of the next filling process. In addition, this design can also effectively reduce filling time and improve overall efficiency.

[0052] Furthermore, both the first pressure relief solenoid valve 6 and the second pressure relief solenoid valve 15 are connected to exhaust silencers. This effectively reduces noise pollution during tank pressure release, ensuring a quiet and comfortable working environment, while also minimizing the impact of exhaust noise on surrounding precision instruments and extending equipment lifespan.

[0053] Based on any of the above embodiments, refer to Figure 1The continuous spraying system for face masks also includes a cleaning module, which includes a first drain solenoid valve 9, a second drain solenoid valve 18, a first cleaning port, and a second cleaning port. The first drain solenoid valve 9 is located at the drain port of the first storage tank 3, and the second drain solenoid valve 18 is located at the drain port of the second storage tank 12. The first cleaning port is located on the first storage tank 3 and is connected to the cleaning water supply system. A first water supply solenoid valve 5 is located at the first cleaning port. The second cleaning port is located on the second storage tank 12 and is connected to the cleaning water supply system. A second water supply solenoid valve 14 is located at the second cleaning port.

[0054] To facilitate tank cleaning after production, a cleaning module is added to this system. A first drain solenoid valve 9 and a second drain solenoid valve 18 are respectively installed at the drain ports of the first tank 3 and the second tank 12, enabling automated draining of the tanks. Simultaneously, a first cleaning port and a second cleaning port are respectively provided on the first tank 3 and the second tank 12, and these ports are connected to a cleaning water supply system via pipelines. A first water supply solenoid valve 5 and a second water supply solenoid valve 14 are installed at the connection points to control the supply of cleaning water to the tanks.

[0055] Specifically, after the entire mask spraying process is completed, the first drain solenoid valve 9 and the second drain solenoid valve 18 are opened to drain the residual active liquid in the first storage tank 3 and the second storage tank 12. After the draining is completed, the first water supply solenoid valve 5 and the second water supply solenoid valve 14 are opened to supply cleaning water to the first storage tank 3 and the second storage tank 12 through the cleaning water supply system, thereby cleaning the inside of the first storage tank 3 and the second storage tank 12 and preventing the active liquid from remaining in the tank for a long time and breeding bacteria.

[0056] Furthermore, after cleaning the inside of the first storage tank 3 and the second storage tank 12, the first water supply solenoid valve 5, the second water supply solenoid valve 14, the first liquid supply solenoid valve 8 and the second liquid supply solenoid valve 17 can be opened simultaneously to clean the spraying pipe connected to the nozzle 19, thereby preventing the active liquid from remaining in the pipe for a long time and causing bacteria to grow.

[0057] Furthermore, a first cleaning ball 7 is installed on one side of the first cleaning port inside the first storage tank 3, and a second cleaning ball 16 is installed on one side of the second cleaning port inside the second storage tank 12. The first cleaning ball 7 and the second cleaning ball 16 can spray water from multiple angles (360°) inside the first storage tank 3 and the second storage tank 12. Rotating under the action of the cleaning water flow, they generate a strong water jet impact, thoroughly removing residual active liquid from the inner walls of the tanks, preventing bacterial growth, and thus making the cleaning process more uniform and comprehensive, reducing cleaning dead zones, ensuring that the sanitary conditions inside the tanks meet production requirements, and further improving the cleaning effect inside the tanks.

[0058] Based on any of the above embodiments, the drain outlets of the first storage tank 3 and the second storage tank 12 are both connected to a return pipe, and the end of the return pipe away from the two drain outlets is connected to the active liquid supply source.

[0059] Specifically, because the liquid supply is provided by continuously switching between two storage tanks, a significant amount of active liquid remains in the tanks after the mask production process is completed. Directly discharging this active liquid would lead to resource waste. By connecting return pipes to the drain ports of the first storage tank 3 and the second storage tank 12, the residual active liquid in the first storage tank 3 and the second storage tank 12 is discharged into the return pipes via the first drain solenoid valve 9 and the second drain solenoid valve 18. This allows the active liquid to flow back to the active liquid supply source, thus achieving the recycling of the active liquid in the spraying system. The remaining active liquid can be returned to the active liquid supply source through its respective drain ports and return pipes, avoiding waste and reducing environmental pollution caused by waste liquid discharge. This effectively improves resource utilization, reduces production costs, and enhances the system's environmental performance.

[0060] This application also discloses a continuous spraying process for face masks, which specifically includes the following steps:

[0061] During the production preparation stage, the first liquid inlet solenoid valve 4 and the second liquid inlet solenoid valve 13 are opened to fill the first storage tank 3 and the second storage tank 12 with active liquid until the liquid level of the active liquid in the first storage tank 3 and the second storage tank 12 reaches the upper detection level, and then the first liquid inlet solenoid valve 4 and the second liquid inlet solenoid valve 13 are closed.

[0062] When the mask equipment is started, the first liquid supply solenoid valve 8 and the first gas supply solenoid valve 1 are opened. Under the support of gas pressure, the active liquid is sprayed onto the mask cloth in the form of a mist through the nozzle 19 to achieve the spraying action.

[0063] When the first liquid level gauge 2 in the first storage tank 3 detects that the active liquid level has reached the lower detection level, the first liquid supply solenoid valve 8 and the first gas supply solenoid valve 1 are closed, and the second liquid supply solenoid valve 17 and the second gas supply solenoid valve 13 are opened at the same time to realize the switching from the first storage tank 3 to the second storage tank 12, and the nozzle 19 is supplied with liquid for spraying through the second storage tank 12.

[0064] When the second storage tank 12 performs the spraying operation, the first pressure release solenoid valve 6 is opened to release the pressure in the first storage tank 3, and then the first liquid inlet solenoid valve 4 is opened to add the active liquid. When the active liquid level in the first storage tank 3 reaches the upper detection level, the first liquid inlet solenoid valve 4 is closed.

[0065] This cycle enables the switching of liquid supply between the first storage tank 3 and the second storage tank 12, achieving a continuous supply of active liquid and thus enabling continuous spraying in mask production, ensuring the continuity of mask production.

[0066] After the entire production is completed, the first pressure release solenoid valve 6 and the second pressure release solenoid valve 15 are opened to release the pressure in the first storage tank 3 and the second storage tank 12. The first drain solenoid valve and the second drain solenoid valve are opened to drain the residual active liquid in the first storage tank 3 and the second storage tank 12 into the active liquid supply source through the return pipe to achieve circulation.

[0067] Open the first water supply solenoid valve 5 and the second water supply solenoid valve 14, and clean the inside of the first storage tank 3 and the second storage tank 12 through the first cleaning ball 7 and the second cleaning ball 16.

[0068] After cleaning for a certain period of time, open the first liquid supply solenoid valve 8 and the second liquid supply solenoid valve 17 to clean the spraying pipeline.

[0069] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0070] The continuous spraying system for face masks provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A continuous mask spraying system, comprising a nozzle (19), characterized in that, It also includes a first storage tank (3) and a second storage tank (12). The liquid supply port of the first storage tank (3) and the liquid supply port of the second storage tank (12) are both connected to the liquid inlet of the nozzle (19). A first liquid supply solenoid valve (8) is provided between the liquid supply port of the first storage tank (3) and the liquid inlet of the nozzle (19). A second liquid supply solenoid valve (17) is provided between the liquid supply port of the second storage tank (12) and the liquid inlet of the nozzle (19). A liquid level monitoring device is used to monitor the liquid level of the active liquid in the first storage tank (3) and the second storage tank (12).

2. The continuous spraying system for face masks according to claim 1, characterized in that, The liquid level monitoring device includes a first liquid level gauge (2) installed in the first storage tank (3) and a second liquid level gauge (11) installed in the second storage tank (12).

3. The continuous spraying system for face masks according to claim 1, characterized in that, The first storage tank (3) is equipped with a first inlet solenoid valve (4) at its inlet, and the second storage tank (12) is equipped with a second inlet solenoid valve (13) at its inlet. Both the inlet of the first storage tank (3) and the inlet of the second storage tank (12) are connected to the active liquid filling system.

4. The continuous spraying system for face masks according to claim 1, characterized in that, It also includes a pressure supply module, which includes an access port connected to an air compressor, and the access port is connected to the pressure supply port of the first storage tank (3) and the pressure supply port of the second storage tank (12), respectively. A first gas supply solenoid valve (1) is provided between the pressure port of the first storage tank (3) and the access port, and a second gas supply solenoid valve (10) is provided between the pressure port of the second storage tank (12) and the access port.

5. A continuous film spraying system according to claim 4, characterized in that, The pressure supply module also includes a pressure regulator, which is located between the access port and the air compressor.

6. A continuous mask spraying system according to claim 4, characterized in that, It also includes a pressure relief module, which includes a first pressure relief port opened on the first storage tank (3), a first pressure relief solenoid valve (6) set at the first pressure relief port, a second pressure relief port opened on the second storage tank (12), and a second pressure relief solenoid valve (15) set at the second pressure relief port.

7. A continuous mask spraying system according to claim 6, characterized in that, Both the first pressure relief solenoid valve (6) and the second pressure relief solenoid valve (15) are connected to exhaust mufflers.

8. A continuous film spraying system according to any one of claims 1-7, characterized in that, It also includes a cleaning module, which comprises: The first drain solenoid valve (9) is installed at the drain port of the first storage tank (3); The second drain solenoid valve (18) is located at the drain port of the second storage tank (12); The first cleaning port is located on the first storage tank (3). The first cleaning port is connected to the cleaning water supply system. A first water supply solenoid valve (5) is installed at the first cleaning port. The second cleaning port is located on the second storage tank (12). The second cleaning port is connected to the cleaning water supply system. A second water supply solenoid valve (14) is installed at the second cleaning port.

9. A continuous mask spraying system according to claim 8, characterized in that, The first cleaning port is located on one side inside the first storage tank (3) and a first cleaning ball (7) is provided thereon. The second cleaning port is located on one side inside the second storage tank (12) and a second cleaning ball (16) is provided thereon.

10. A continuous mask spraying system according to claim 8, characterized in that, The drain outlets of the first storage tank (3) and the second storage tank (12) are both connected to a return pipe, and the end of the return pipe opposite to the two drain outlets is connected to the active liquid supply source.

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