A drip-proof filling module and facial mask liquid filling equipment

Abstract

The application discloses a kind of anti-dripping filling module and mask liquid filling equipment.The anti-dripping filling module includes carrier, airflow body driving element, first airflow passage, second airflow passage, flow guide element, first liquid flow driving element and first liquid flow passage;During each filling, first, the first liquid flow driving element is used to quantitatively input the first solution into the first liquid flow passage, so that the first solution enters the first airflow passage and outputs a part from the filling outlet;Then, the airflow body driving element is used to input gas into the first airflow passage and push the remaining first solution to be completely output from the filling outlet;At the same time, the airflow body driving element also inputs gas into the second airflow passage and is transported to the flow guide element, and after the flow guide of the flow guide element, the outer edge of the filling outlet is circumferentially blown, which can prevent the solution from adhering or blowing the adhered first solution to the inside of the outer edge of the filling outlet and re-dissolving into the output first solution, so that there is no solution residue at the filling outlet, and the anti-dripping effect is significantly improved.

Description

Technical Field

[0001] This invention relates to the field of intelligent filling technology, and in particular to an anti-drip filling module and a facial mask liquid filling device. Background Technology

[0002] In anti-drip filling technology for facial mask liquids, there are several common anti-drip methods. For example, one method uses a pneumatic piston pump combined with a dedicated anti-drip valve assembly to block the flow at the filling port and prevent dripping. Another example is filling technology based on high-precision pressure control and back-suction function. All of these methods can reliably achieve flow interruption to prevent dripping.

[0003] However, in actual large-scale production environments, especially during long-term, high-frequency continuous filling operations, solution will gradually adhere to and accumulate on the outer edge of the filling outlet, eventually leading to dripping. Through in-depth observation and engineering analysis, a significant cause of dripping was discovered in the current technology: after each filling cycle, the filling module needs to perform a mechanical lifting action—moving upwards to make room for the transport and positioning of the mask bag or bottle, and then lowering down to the opening of the container to be filled for the next round of filling.

[0004] This periodic up-and-down motion causes the filling outlet to be in a state of frequent spatial displacement. Even when the flow is interrupted by valve interception or backflow, the residual droplets adhering to the outer edge of the filling nozzle are difficult to stabilize under the influence of mechanical vibration and inertia. During long-term operation, due to the inertial effect and changes in solution surface tension, solution gradually accumulates along the outer edge of the filling nozzle. Once this residual solution reaches a certain volume, it will be thrown off by gravity or mechanical movement, causing dripping and contaminating the filling environment, affecting equipment cleanliness, and even contaminating the outer wall of the packaging. The contaminated packaging will then further contaminate the droplets during transportation, causing subsequent packaging to also become contaminated, seriously affecting product appearance quality and the reliability of the production process. Summary of the Invention

[0005] The purpose of this invention is to provide an anti-drip filling module and a facial mask liquid filling device, which aims to solve the problem that the anti-drip effect is affected by solution instability induced by mechanical movement.

[0006] To solve the above-mentioned technical problems, the objective of this invention is achieved through the following technical solution: providing an anti-drip filling module, comprising:

[0007] Carrier;

[0008] A pneumatic-fluid drive unit is disposed on the top of the carrier and its input end is connected to an external gas source, and it has two output ends;

[0009] The first airflow channel is vertically arranged inside the carrier, with its upper end connected to one of the output ends of the pneumatic fluid drive component and its lower end being the filling outlet.

[0010] The second airflow channel is vertically arranged inside the carrier, with its upper end connected to another output end of the pneumatic fluid drive component and its lower end being an air supply interface.

[0011] A flow guide, disposed at the bottom of the carrier and connected to the air supply interface, is used to circumferentially purge the outer edge of the filling outlet to prevent solution from adhering to the outer edge;

[0012] A first fluid drive unit is disposed on the top of the carrier, and its input end is connected to an externally disposed first solution source;

[0013] The first liquid flow channel is vertically arranged inside the carrier, with its upper end connected to the output end of the first liquid flow drive component and its lower end bent and connected to the first air flow channel.

[0014] During each filling process, the first liquid flow driver is used to quantitatively input the first solution into the first liquid flow channel, so that the first solution enters the first air flow channel and a portion is output from the filling outlet. The gas flow driver is used to input gas into the first air flow channel and push the remaining first solution to be fully output from the filling outlet.

[0015] Furthermore, the bottom of the carrier is provided with an extension;

[0016] The guide component is fitted onto the extension. The top of the guide component is provided with an air inlet connector that is connected to the air supply interface. The interior of the guide component is provided with a guide cavity that communicates with the air inlet connector. The bottom of the guide component is provided with an annular air outlet that communicates with the guide cavity. The annular air outlet is located radially outside the filling outlet and the air outlet angle is towards the outer edge of the filling outlet.

[0017] Furthermore, the space of the air guide cavity is gradually narrowed towards the annular air outlet.

[0018] Furthermore, the pneumatic-fluid drive component includes an air pump and an electrically controlled four-way valve;

[0019] Two of the ports of the electrically controlled four-way valve are connected in parallel to the output of the air pump;

[0020] The other two ports of the electronically controlled four-way opening are the two output ends of the pneumatic fluid drive component, and are respectively connected to the upper ends of the first airflow channel and the second airflow channel.

[0021] The electrically controlled four-way valve is used to independently adjust the opening of the first airflow channel and the second airflow channel.

[0022] Furthermore, the anti-drip filling module also includes:

[0023] The second fluid drive is disposed on the top of the carrier, and its input end is connected to the externally disposed second solution source;

[0024] The second liquid flow channel is vertically arranged inside the carrier, with its upper end connected to the output end of the second liquid flow drive and its lower end bent and connected to the first air flow channel;

[0025] During each filling process, the second liquid flow driver is used to quantitatively input the second solution into the first liquid flow channel, so that the second solution enters the first air flow channel and a portion is output from the filling outlet. The gas flow driver is used to input gas into the first air flow channel and push the remaining second solution to be fully output from the filling outlet.

[0026] Furthermore, a first electrically controlled on / off valve is provided at the position where the lower end of the first liquid flow channel connects to the first gas flow channel;

[0027] A second electrically controlled on / off valve is provided at the position where the lower end of the second liquid flow channel connects to the first gas flow channel.

[0028] Furthermore, the carrier includes a first carrier and a second carrier that are fitted together, and the first carrier and the second carrier have multiple flow channel grooves and two valve grooves inside or on their mating surfaces.

[0029] The plurality of flow channel slots are respectively used to accommodate and limit the first air flow channel, the second air flow channel, the first liquid flow channel, and the second liquid flow channel; the two valve slots are respectively used to accommodate and limit the first electrically controlled on / off valve and the second electrically controlled on / off valve.

[0030] Furthermore, a maintenance port connecting the two valve slots is provided on the outside of the first or second carrier.

[0031] Furthermore, the lowest point at the lower end of the first liquid flow channel is lower than the point where it connects to the first gas flow channel;

[0032] The lowest point at the lower end of the second liquid flow channel is its connection point to the first gas flow channel;

[0033] The viscosity of the first solution is less than 1000 mPa·s, and the viscosity of the second solution is greater than 1000 mPa·s.

[0034] This invention also provides a facial mask liquid filling device, which includes the anti-drip filling module described above.

[0035] The beneficial effects of this invention are as follows: through the dual mechanism of airflow purging and air pressure pushing, there is no first solution residue at the filling outlet after each filling, which significantly improves the anti-drip effect and is suitable for high-frequency continuous operation scenarios. Attached Figure Description

[0036] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a front and side perspective three-dimensional structural diagram of an anti-drip filling module provided in an embodiment of the present invention;

[0038] Figure 2 A schematic diagram of the back side three-dimensional structure of an anti-drip filling module provided in an embodiment of the present invention;

[0039] Figure 3 This is a schematic diagram of the front and side exploded structure of an anti-drip filling module provided in an embodiment of the present invention;

[0040] Figure 4 This is a schematic diagram of the exploded back structure of an anti-drip filling module provided in an embodiment of the present invention;

[0041] Figure 5 A cross-sectional structural schematic diagram of the flow guide provided in an embodiment of the present invention;

[0042] Figure 6 A schematic diagram illustrating the driving principle of the pneumatic-fluid drive component provided in an embodiment of the present invention;

[0043] Figure 7 A schematic diagram of the internal structure of another anti-drip filling module (without an electrically controlled on / off valve) provided in an embodiment of the present invention;

[0044] Explanation of the markings in the image:

[0045] 1. Support body; 11. First support body; 12. Second support body; 13. Extension; 14. Flow channel groove; 15. Valve groove; 16. Maintenance port;

[0046] 2. Pneumatic-fluid drive components; 21. Air pump; 22. Electrically controlled four-way valve;

[0047] 3. First airflow channel;

[0048] 4. Second airflow channel;

[0049] 5. Air guide; 51. Air inlet connector; 52. Air guide cavity; 53. Annular air outlet;

[0050] 6. First fluid drive component;

[0051] 7. First fluid flow channel; 71. First electrically controlled on / off valve;

[0052] 8. Second fluid drive component;

[0053] 9. Second fluid flow channel; 91. Second electrically controlled on / off valve. Detailed Implementation

[0054] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0055] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0056] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0057] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0058] Please see Figures 1 to 4 This invention provides an anti-drip filling module, comprising: a carrier 1, a pneumatic-fluid driving component 2, a first airflow channel 3, a second airflow channel 4, a guide component 5, a first liquid-fluid driving component 6, and a first liquid flow channel 7;

[0059] The pneumatic-fluid drive unit 2 is located on the top of the carrier 1 and its input end is connected to an external gas source, and it has two output ends;

[0060] The first airflow channel 3 is vertically arranged inside the carrier 1, with its upper end connected to one of the output ends of the pneumatic-fluid drive component 2 and its lower end being the filling outlet.

[0061] The second airflow channel 4 is vertically arranged inside the carrier 1, with its upper end connected to another output end of the airflow drive component 2 and its lower end being an air supply interface.

[0062] The flow guide 5 is located at the bottom of the carrier 1 and connected to the air supply interface, and is used to circumferentially purge the outer edge of the filling outlet to prevent the solution from adhering to the outer edge.

[0063] The first liquid driving component 6 is disposed on the top of the carrier 1, and its input end is connected to the first solution source disposed externally.

[0064] The first liquid flow channel 7 is vertically arranged inside the carrier 1, with its upper end connected to the output end of the first liquid flow drive 6 and its lower end bent and connected to the first air flow channel 3.

[0065] During each filling process, the first liquid flow drive 6 is used to quantitatively input the first solution into the first liquid flow channel 7, so that the first solution enters the first air flow channel 3 and a portion is output from the filling outlet. The gas flow drive 2 is used to input gas into the first air flow channel 3 and push the remaining first solution to be fully output from the filling outlet.

[0066] The core of this embodiment lies in achieving precise filling and anti-drip through gas-liquid coordinated control. Specifically, the anti-drip filling module includes a carrier 1, a gas-liquid drive component 2, a first airflow channel 3, a second airflow channel 4, a guide component 5, a first liquid-liquid drive component 6, and a first liquid flow channel 7. The gas-liquid drive component 2 provides gas power, and its two output ends are respectively connected to the first airflow channel 3 and the second airflow channel 4. The first airflow channel 3 is used for the filling outlet, and the second airflow channel 4 achieves circumferential purging of the outer edge of the filling outlet through the guide component 5, which can prevent solution adhesion.

[0067] The specific filling process for each step is as follows:

[0068] First, the first liquid flow drive 6 quantitatively extracts the preset amount of solution required for a single filling from the first solution source and transports it through the first liquid flow channel 7. The first amount of solution enters the first air flow channel 3 from the lower end of the first liquid flow channel 7, and then continues to be transported downward in the first air flow channel 3. A portion of the solution is first output from the filling outlet until the first liquid flow drive 6 stops. At this point, the point where the first liquid flow channel 7 connects to the first air flow channel 3 is taken as the boundary. The sum of the amount of solution already output from the filling outlet (the first portion) and the amount of solution remaining in the first air flow channel 3 (the second portion) is the preset amount of solution required for a single filling. (It should be noted that when the first solution first enters the first air flow channel 3, it will be transported towards the upper end of the first air flow channel 3, but due to the pressure difference, it will only be transported upward for a short distance, and then it will continue to be transported downward.)

[0069] Then, at the instant the first liquid flow drive 6 stops, the gas flow drive 2 is activated to provide two gas pressures. One gas pressure pushes downward from the upper end of the first airflow channel 3, causing the remaining second portion in the first airflow channel 3 to continue to be output from the filling outlet, thereby completing the filling of a single preset solution amount. At the same time, the other gas pressure is delivered from the second airflow channel 4 to the guide member 5. After being guided by the guide member 5, the outer edge of the filling outlet is circumferentially swept, which can prevent the solution from adhering or blow the first solution that has been adhering to the inner side of the outer edge of the filling outlet and reintegrate it into the first solution that is being output.

[0070] Based on this, through the dual mechanism of airflow purging and air pressure pushing, there is no first solution residue at the filling outlet after each filling, which significantly improves the anti-drip effect and is suitable for high-frequency continuous operation scenarios.

[0071] In some embodiments, the amount of circumferential purging of the outer edge of the filling outlet can be limited to save gas source, since the solution adhesion at the filling outlet is generally a phenomenon that gradually appears after continuous operation for a certain period of time or a certain number of times. Therefore, the circumferential purging function can be activated after a certain interval or after performing multiple filling operations to participate in one or more subsequent filling operations, and then the limitation can be applied again, and so on.

[0072] Combination Figure 5 As shown, the flow guide 5 of this application will be described in detail below.

[0073] In one embodiment, the bottom of the support body 1 is provided with an extension 13;

[0074] The guide member 5 is fitted onto the extension 13. The top of the guide member 5 is provided with an air inlet connector 51 that is connected to the air supply interface. The inside of the guide member 5 is provided with a guide cavity 52 that communicates with the air inlet connector 51. The bottom of the guide member 5 is provided with an annular air outlet 53 that communicates with the guide cavity 52. ​​The annular air outlet 53 is located on the radial outer side of the filling outlet and the air outlet angle is towards the outer edge of the filling outlet.

[0075] In this embodiment, the extension 13 is cylindrical in shape, and the guide 5 is annular cylindrical in shape. The guide 5 can be fitted onto the extension 13. The filling outlet at the lower end of the first airflow channel 3 extends a short distance relative to the bottom of the extension 13. After the guide 5 is fitted onto the extension 13, the air inlet connector 51 at the top of the guide 5 can be connected to the air supply interface and fixed by a locking nut. The annular air outlet 53 at the bottom of the guide 5 is located radially outside the filling outlet, and the air outlet angle of the annular air outlet 53 is tilted towards the outer edge of the filling outlet. Based on this, the guide 5, through its annular air outlet 53, completely covers the outer edge of the filling outlet with the purging airflow, effectively purging the surface where the solution may adhere, preventing the solution from adhering to the outer edge, thereby achieving an anti-drip effect.

[0076] Furthermore, the inner side of the guide member 5 can also be engaged with the outer wall of the extension 13 to ensure the stability of the guide member 5.

[0077] Furthermore, the space of the guide cavity 52 is gradually narrowed towards the annular air outlet 53. This design can accelerate the airflow and increase the outlet air pressure of the annular air outlet 53, enhancing the purging force, thereby more effectively blowing the solution adhering to the outer edge of the filling outlet to the inner side of the outer edge and integrating it into the solution being output.

[0078] Furthermore, a vertical guide groove can be installed on the outer edge of the filling outlet to make it easier for the attached solution to be blown to the inner edge.

[0079] Furthermore, in order to make the airflow from the annular air outlet 53 more uniform, a guiding structure can be set in the guide cavity 52 to guide the airflow evenly to the annular air outlet 53.

[0080] Combination Figure 6 As shown, the pneumatic-fluid drive component 2 of this application will be described in detail below.

[0081] In one embodiment, the pneumatic-fluid drive 2 includes an air pump 21 and an electrically controlled four-way valve 22;

[0082] Two of the ports of the electrically controlled four-way valve 22 are connected in parallel to the output of the air pump 21;

[0083] The other two ports of the electronically controlled four-way opening are the two output ends of the pneumatic-fluid drive component 2, and are respectively connected to the upper ends of the first airflow channel 3 and the second airflow channel 4.

[0084] The electrically controlled four-way valve 22 is used to independently adjust the opening of the first airflow channel 3 and the second airflow channel 4.

[0085] In this embodiment, a specific implementation of the pneumatic-fluid drive component 2 is provided. The electrically controlled four-way valve 22 has two independently controlled opening valves (such as electromagnetic regulating valves, whose opening can be controlled by current or voltage signals) built-in to control the airflow of the first airflow channel 3 and the second airflow channel 4, respectively, thereby achieving precise control of airflow distribution. For example, when filling a high-viscosity solution, the air pressure in the first airflow channel 3 can be increased to enhance the pushing force, while the airflow intensity in the second airflow channel 4 can be adjusted to optimize the circumferential blowing effect.

[0086] In another embodiment, the pneumatic-fluid drive 2 may include two air pumps 21 and two electromagnetic regulating valves, both of which are connected to an external gas source. One air pump 21, one electromagnetic regulating valve, and the first airflow channel 3 form a single path, while the other air pump 21, the other electromagnetic regulating valve, and the second airflow channel 4 form another single path.

[0087] In one embodiment, the anti-drip filling module further includes:

[0088] The second fluid drive unit 8 is disposed on the top of the carrier 1, and its input end is connected to the externally disposed second solution source;

[0089] The second liquid flow channel 9 is vertically arranged inside the carrier 1. Its upper end is connected to the output end of the second liquid flow drive 8, and its lower end is bent and connected to the first air flow channel 3.

[0090] During each filling process, the second liquid flow driver 8 is used to quantitatively input the second solution into the first liquid flow channel 7, so that the second solution enters the first air flow channel 3 and a portion is output from the filling outlet. The gas flow driver 2 is used to input gas into the first air flow channel 3 and push the remaining second solution to be fully output from the filling outlet.

[0091] In this embodiment, a second liquid flow driver 8 and a second liquid flow channel 9 are introduced, enabling the module of this application to have a dual-solution filling function. The second liquid flow channel 9 is also connected to the first air flow channel 3, and filling is achieved through the same air flow pushing mechanism. This design can be applied to scenarios that require alternating or mixed filling of two different solutions, such as in a production process where essence is filled first and then gel-type facial mask liquid is filled.

[0092] In a specific application of alternating filling, the first solution of a preset single-use volume can be filled first, as described above. Then, the second solution of a preset single-use volume can be filled using the same principle (i.e., the second liquid flow drive 8 first outputs the second solution through the second liquid flow channel 9 and the first air flow channel 3, and then the gas flow drive 2 continues to output the remaining solution in the first air flow channel 3, thus completing the filling of the second solution). This completes the application of alternating filling.

[0093] In a specific application of mixed filling, the first liquid fluid drive unit 6 and the second liquid fluid drive unit 8 can be activated simultaneously to deliver the first solution and the second solution to the first airflow channel 3 at the same time, and achieve mixing in the first airflow channel 3 and continue to be output from the filling outlet; at the same time, the gas fluid drive unit 2 can be activated synchronously to provide gas, and the gas will accelerate and improve the mixing effect of the first solution and the second solution while pushing them out.

[0094] In one embodiment, a first electrically controlled on / off valve 71 is provided at the position where the lower end of the first liquid channel 7 connects to the first gas flow channel 3; a second electrically controlled on / off valve 91 is provided at the position where the lower end of the second liquid channel 9 connects to the first gas flow channel 3.

[0095] In this embodiment, a first electrically controlled on / off valve 71 and a second electrically controlled on / off valve 91 are respectively installed at the locations where the first liquid flow channel 7 and the second liquid flow channel 9 connect to the first gas flow channel 3. The electrically controlled on / off valves can be solenoid valves or electric ball valves, and have the characteristics of rapid opening and closing and good sealing performance.

[0096] It can be understood that the preset solution volume required for a single filling of the first solution is defined by the first electrically controlled on / off valve 71, and the preset solution volume required for a single filling of the second solution is defined by the second electrically controlled on / off valve 91. Therefore, during each filling operation, when the first liquid flow drive 6 and the second liquid flow drive 8 extract and transport the corresponding solution and then stop, the first electrically controlled on / off valve 71 and the second electrically controlled on / off valve 91 can stop synchronously (and open synchronously as well). At this point, the sum of the already filled solution and the remaining solution still in the first airflow channel 3, defined by the first electrically controlled on / off valve 71 and the second electrically controlled on / off valve 91, is the preset solution volume required for a single filling.

[0097] In one embodiment, the carrier 1 includes a first carrier 11 and a second carrier 12 that are attached to each other. The first carrier 11 and the second carrier 12 have multiple flow channel grooves 14 and two valve grooves 15 inside or on their contact surfaces. The multiple flow channel grooves 14 are respectively used to accommodate and limit the first air flow channel 3, the second air flow channel 4, the first liquid flow channel 7 and the second liquid flow channel 9. The two valve grooves 15 are respectively used to accommodate and limit the first electrically controlled on / off valve 71 and the second electrically controlled on / off valve 91.

[0098] In this embodiment, the carrier 1 can be formed by a first carrier 11 and a second carrier 12 connected by a bonding connection; a positioning strip and a positioning groove can be provided on the bonding surface of the first carrier 11 and the second carrier 12 to achieve precise bonding and positioning, and after positioning, they are fixedly connected to each other by screws.

[0099] In this embodiment, the multiple flow channel grooves 14 and the two valve grooves 15 are designed in correspondence with the shape and position of the first air flow channel 3, the second air flow channel 4, the first liquid flow channel 7, the second liquid flow channel 9, the first electrically controlled on / off valve 71 and the second electrically controlled on / off valve 91, which can ensure that the first air flow channel 3, the second air flow channel 4, the first liquid flow channel 7, the second liquid flow channel 9, the first electrically controlled on / off valve 71 and the second electrically controlled on / off valve 91 remain stable in the carrier 1.

[0100] In one embodiment, a maintenance port 16 connecting the two valve slots 15 is provided on the outside of the first carrier 11 or the second carrier 12.

[0101] In this embodiment, to facilitate wiring of the first electrically controlled on / off valve 71 and the second electrically controlled on / off valve 91, a maintenance port 16 connecting the two valve slots 15 can be provided on the outside of the first carrier 11 or the second carrier 12, allowing for wiring and maintenance. Alternatively, the wiring of the first electrically controlled on / off valve 71 and the second electrically controlled on / off valve 91 can also be routed through the adjacent flow channel 14, requiring only an additional wiring channel to be provided in the flow channel 14. Furthermore, a protective cover can be installed at the maintenance port 16 for protection.

[0102] Combination Figure 7 As shown, in another scenario of the present invention, the first liquid channel 7 and the second liquid channel 9 can also be selected separately according to the viscosity of the solution. Therefore, the lower ends of the first liquid channel 7 and the second liquid channel 9 are further designed in the present invention.

[0103] Specifically, the lowest point at the lower end of the first liquid flow channel 7 is lower than the connection point of its connection to the first air flow channel 3 (similar to the principle of a water trap); the lowest point at the lower end of the second liquid flow channel 9 is the connection point of its connection to the first air flow channel 3; the viscosity of the first solution is less than 1000 mPa·s, and the viscosity of the second solution is greater than 1000 mPa·s.

[0104] In this embodiment, the design of the lower end of the first liquid flow channel 7 allows it to be used for filling relatively dilute solutions. After the first solution is input into the first air flow channel 3, the solution stops flowing into the first air flow channel 3 at the lowest point of the lower end of the first liquid flow channel 7, and the air pressure input into the first air flow channel 3 by the pneumatic-fluid drive 2 will not draw the solution out. This solution eliminates the need for the first electrically controlled on / off valve 71, thus saving costs.

[0105] In this embodiment, the design of the lower end of the second liquid flow channel 9 allows it to be used for filling thicker solutions. After the second solution is input into the first air flow channel 3, it will not continue to flow into the first air flow channel 3, with the lowest point of the lower end of the first liquid flow channel 7 (i.e., the point of connection to the first air flow channel 3) as the boundary. The air pressure input into the first air flow channel 3 by the pneumatic-fluid drive 2 is also unlikely to draw out the thicker second solution (because the air pressure only pushes the second solution to be output, which is a low-speed airflow). This solution eliminates the need for a second electrically controlled on / off valve 91, saving costs.

[0106] In this embodiment, the access point at the lower end of the first liquid channel 7 is set higher than the lower end of the second liquid channel 9, so that the solution transported by the first liquid channel 7 will not enter the second liquid channel 9 and remain there (even if some enters, it will be carried out by the gas in the first liquid channel); and the solution transported by the second liquid channel 9 will not rise to the access point at the lower end of the first liquid channel 7.

[0107] In one scenario of the present invention, namely Figure 7In the aforementioned scenario, it can also be used in conjunction with the first electrically controlled on / off valve 71 and the second electrically controlled on / off valve 91, which can further ensure the independent use of the first liquid flow channel 7 and the second liquid flow channel 9.

[0108] This invention also provides a facial mask liquid filling device, which includes the above-mentioned anti-drip filling module.

[0109] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A drip-proof filling module, characterized in that, The anti-dripping filling module comprises: a carrier; a gas flow driving element arranged on the top of the carrier and having an input end connected with an externally arranged gas source and two output ends; a first gas flow channel vertically arranged in the carrier and having an upper end connected with one of the output ends of the gas flow driving element and a lower end as a filling outlet; a second gas flow channel vertically arranged in the carrier and having an upper end connected with the other output end of the gas flow driving element and a lower end as an air supply interface; a flow guide element arranged on the bottom of the carrier and connected with the air supply interface, for circularly blowing the outer edge of the filling outlet to prevent solution from adhering to the outer edge; a first liquid flow driving element arranged on the top of the carrier and having an input end connected with an externally arranged first solution source; a first liquid flow channel vertically arranged in the carrier and having an upper end connected with the output end of the first liquid flow driving element and a lower end connected with the first gas flow channel after being bent; wherein, during each filling, the first liquid flow driving element is used to quantitatively input the first solution into the first liquid flow channel, so that the first solution enters the first gas flow channel and a part of the first solution is output from the filling outlet, and the gas flow driving element is used to input gas into the first gas flow channel and push the remaining first solution to be completely output from the filling outlet; wherein, the bottom of the carrier is provided with an extension part, the flow guide element is sleeved on the extension part, the top of the flow guide element is provided with an air inlet joint connected with the air supply interface, the inside of the flow guide element is provided with a flow guide cavity in communication with the air inlet joint, and the bottom of the flow guide element is provided with an annular air outlet in communication with the flow guide cavity, the annular air outlet is located on the radial outside of the filling outlet and has an air outlet angle towards the outer edge of the filling outlet; wherein, the anti-dripping filling module further comprises a second liquid flow driving element and a second liquid flow channel, the second liquid flow driving element is arranged on the top of the carrier and has an input end connected with an externally arranged second solution source, the second liquid flow channel is vertically arranged in the carrier and has an upper end connected with the output end of the second liquid flow driving element and a lower end connected with the first gas flow channel after being bent, and during each filling, the second liquid flow driving element is used to quantitatively input the second solution into the first liquid flow channel, so that the second solution enters the first gas flow channel and a part of the second solution is output from the filling outlet, and the gas flow driving element is used to input gas into the first gas flow channel and push the remaining second solution to be completely output from the filling outlet.

2. The drip-proof filling module according to claim 1, characterized in that, The space of the flow guide cavity is arranged to be tapered towards the annular air outlet.

3. The drip-proof filling module according to claim 1, characterized in that, The gas flow driving element comprises a gas pump and an electrically controlled four-way opening valve. Two ports of the electrically controlled four-way opening valve are connected to the output of the gas pump after being connected in parallel. The other two ports of the electrically controlled four-way opening valve are the two output ends of the gas flow driving element and are respectively connected with the upper ends of the first gas flow channel and the second gas flow channel. The electrically controlled four-way opening valve is used to independently adjust the opening degrees of the first gas flow channel and the second gas flow channel.

4. The drip-proof filling module according to claim 1, characterized in that, The position where the lower end of the first liquid flow channel is connected with the first gas flow channel is provided with a first electrically controlled on-off valve. The position where the lower end of the second liquid flow channel is connected with the first gas flow channel is provided with a second electrically controlled on-off valve.

5. The drip-proof filling module according to claim 4, characterized in that, The carrier comprises a first carrier and a second carrier connected to each other, and a plurality of flow channel grooves and two valve grooves are formed on the inner or abutting surface of the first carrier and the second carrier; The plurality of flow channel grooves are respectively used for accommodating and limiting the first gas flow channel, the second gas flow channel, the first liquid flow channel and the second liquid flow channel; and the two valve grooves are respectively used for accommodating and limiting the first electrically-controlled on-off valve and the second electrically-controlled on-off valve.

6. The drip-proof filling module according to claim 5, characterized in that, A maintenance opening is formed on the outer part of the first carrier or the second carrier and is in communication with the two valve grooves.

7. The drip-proof filling module according to claim 1, characterized in that, The lowest point of the lower end of the first liquid flow channel is lower than the access point of the first liquid flow channel to the first gas flow channel; The lowest point of the lower end of the second liquid flow channel is the access point of the second liquid flow channel to the first gas flow channel; The solution viscosity of the first solution is lower than 1000 mPa·s, and the solution viscosity of the second solution is higher than 1000 mPa·s.

8. A pack liquid filling apparatus characterized by comprising: The drip-proof filling module comprises the drip-proof filling module according to any one of claims 1-7.

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