Perfuming injection device and tobacco perfuming machine

Abstract

The utility model relates to a perfuming injection device and a tobacco perfuming machine. The perfuming injection device comprises a compressed air inlet pipe, an injection compressed air pipe, an essence pipe, a nozzle and an acquisition module, and the compressed air inlet pipe is provided with a proportioning valve; the acquisition module is in communication connection with the proportioning valve, and the acquisition module is used for acquiring a tobacco shred mark and transmitting the tobacco shred mark to the proportioning valve; the proportion adjusting valve adjusts the opening degree of the proportion adjusting valve based on the tobacco shred mark so that the injection pressure of the injection air compression pipe can be matched with the tobacco shred mark. Manual adjustment is not needed, the manual operation intensity can be reduced, the working efficiency can be improved, the control precision of injection pressure in the perfuming process can be improved, it is ensured that essence is fully atomized, essence particles are small enough and evenly distributed, the essence particles are fully contacted and absorbed by tobacco shreds, and the perfuming effect is improved. By accurately controlling the injection pressure, the consistent essence applying effect can be kept between different marks, and the consistency of the product quality is ensured.

Description

Technical Field

[0001] This application relates to the field of tobacco technology, and in particular to flavoring ejection devices and tobacco flavoring machines. Background Technology

[0002] Cigarette flavoring involves evenly spraying a prepared flavoring solution onto the tobacco leaves prepared for rolling. The purpose of cigarette flavoring is to impart a pleasant and comfortable aroma to tobacco products, enhance smoking desire, eliminate differences between different grades and types of tobacco leaves and harmonize them, and also to impart characteristic aromas to the smoke or simulate certain pleasant non-tobacco aromas. Some functional flavorings can also reduce the harshness of the smoke, mask off-flavors, make the smoke smoother and more rounded, and improve the aftertaste.

[0003] In the actual flavoring process, liquid flavoring is generally introduced into the nozzle using compressed air (also known as compressed air), atomizing the flavoring before it is sprayed out. Different flavorings require different injection pressures. If the injection pressure is too high, the liquid flavoring particles will be too small, easily floating on the top of the roller and hindering absorption by the tobacco. Conversely, if the injection pressure is too low, the liquid flavoring particles will be too large, adhering to the surface of the tobacco and causing yellow spots on the finished tobacco. Therefore, the injection pressure needs to be adjusted during the flavoring process.

[0004] In related technologies, the ejector pressure is adjusted manually using a pressure-reducing valve. However, manual adjustment carries the risk of being untimely and inaccurate. Utility Model Content

[0005] Therefore, it is necessary to provide a fragrance-added ejector device to address the problems of untimely and inaccurate adjustment of existing ejector pressure methods.

[0006] A scented ejector device, the scented ejector device comprising:

[0007] Compressed air intake pipe, wherein the compressed air intake pipe is equipped with a proportional regulating valve;

[0008] An ejector compressed air pipe is connected to the output end of the proportional control valve;

[0009] Fragrance tubes;

[0010] The nozzle has a compressed air inlet, a fragrance inlet, and a spray nozzle. The compressed air inlet is connected to the output end of the ejector compressed air tube, and the fragrance inlet is connected to the output end of the fragrance tube.

[0011] The acquisition module is used to acquire the tobacco brand number;

[0012] The control unit is connected to both the acquisition module and the proportional control valve. The control unit adjusts the opening of the proportional control valve based on the tobacco grade so that the ejection pressure of the ejector compressed air tube matches the tobacco grade.

[0013] In one embodiment, the ejector compressed air tube is further provided with a pressure detection element, which is used to detect the ejection pressure value of the ejector compressed air tube.

[0014] In one embodiment, the compressed air intake pipe is also provided with a pressure reducing valve.

[0015] In one embodiment, the ejector compressed air tube is further provided with an on / off valve.

[0016] In one embodiment, the on / off valve is disposed between the proportional regulating valve and the nozzle.

[0017] In one embodiment, the nozzle includes an atomizing spray section configured with a plurality of spray nozzles.

[0018] In one embodiment, the nozzle further includes a swirl section located at the input end of the atomizing spray section.

[0019] In one embodiment, the nozzle further includes a constriction section, the flow area of ​​which gradually decreases from the swirling section toward the atomizing spray section.

[0020] In one embodiment, the nozzle is provided with a stirring section for stirring the fragrance entering the nozzle.

[0021] A tobacco flavoring machine, comprising the flavoring ejector device as described above.

[0022] The aforementioned flavoring ejector device adjusts the ejection pressure of the ejector tube by acquiring the tobacco brand and adjusting the opening of the proportional control valve accordingly, thus matching the corresponding tobacco brand. This eliminates the need for manual adjustment, reducing labor intensity and improving work efficiency. Furthermore, it enhances the precision of ejection pressure control during flavoring, ensuring thorough atomization of the flavoring agent. This results in sufficiently fine and uniformly distributed flavoring particles that are fully absorbed by the tobacco, improving the flavoring effect. Precise control of the ejection pressure allows for consistent flavoring application across different brands, ensuring product quality consistency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the fragrance-injecting device provided in the first embodiment of this application.

[0024] Figure 2This is a schematic diagram of the fragrance-inducing ejection device provided in the second embodiment of this application.

[0025] Figure 3 This is a schematic diagram of the nozzle in a fragrance ejector device provided in an embodiment of this application.

[0026] Reference numerals: 110, Compressed air inlet pipe; 120, Proportional regulating valve; 130, Injector compressed air pipe; 140, Nozzle; 141, Compressed air inlet; 142, Flavor inlet; 143, Injection port; 144, Swirl section; 145, Contraction section; 146, Atomizing injection section; 147, Stirring section; 150, Acquisition module; 160, Pressure detection element; 171, Pressure reducing valve; 172, Manual valve; 180, On / off valve; 190, Compressed air source; 210, Flavor pipe. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0033] Flavoring cigarettes involves evenly spraying a prepared flavoring solution onto the tobacco leaves to be rolled. The purpose of flavoring is to impart a pleasant and comfortable aroma to tobacco products, enhance smoking desire, eliminate differences between different grades and types of tobacco leaves and harmonize them, and also to impart characteristic aromas to the smoke or simulate certain pleasant non-tobacco aromas. Some functional flavorings can also reduce the irritation of the smoke, mask off-flavors, make the smoke smoother and more rounded, and improve the aftertaste. In actual flavoring, liquid flavoring is generally introduced into the nozzle using compressed air (also known as compressed air), atomizing the flavoring before it is sprayed out. Different flavorings require different injection pressures. If the injection pressure is too high, the liquid flavoring particles will be too small, easily floating at the top of the roller and hindering absorption by the tobacco leaves; conversely, if the injection pressure is too low, the liquid flavoring particles will be too large, adhering to the surface of the tobacco leaves and easily causing yellow spots on the finished tobacco. Therefore, the injection pressure needs to be adjusted during the flavoring process. In actual production, the pressure reducing valve needs to be manually adjusted frequently to match the appropriate injection pressure. When the cigarette brand is switched frequently, it is not only easy to cause operational errors, but also to cause great damage to the pressure reducing valve.

[0034] Based on this, one embodiment of this application provides a flavoring ejector device. By acquiring the tobacco brand and adjusting the opening of a proportional regulating valve based on the tobacco brand, the ejector pressure of the ejector compressed air tube can be adjusted to match the corresponding tobacco brand. No manual adjustment is required, which not only reduces the intensity of manual operation and improves work efficiency, but also improves the control accuracy of the ejector pressure during the flavoring process, ensuring that the flavoring is fully atomized, resulting in sufficiently fine and uniformly distributed flavoring particles that are fully absorbed by the tobacco, thus improving the flavoring effect and the quality of the finished product. The flavoring ejector device provided in one embodiment of this application will be described in detail below with reference to the accompanying drawings.

[0035] See Figure 1 and Figure 2 As shown, an embodiment of this application provides a flavoring ejector device, including a compressed air inlet pipe 110, an ejector compressed air pipe 130, a flavoring pipe 210, a nozzle 140, and an acquisition module 150. The compressed air inlet pipe 110 is provided with a proportional regulating valve 120; the ejector compressed air pipe 130 is connected to the output end of the proportional regulating valve 120; the nozzle 140 has a compressed air inlet 141, a flavoring inlet 142, and a spray port 143. The compressed air inlet 141 is connected to the output end of the ejector compressed air pipe 130, and the flavoring inlet 142 is connected to the output end of the flavoring pipe 210; the acquisition module 150 is communicatively connected to the proportional regulating valve 120, and the acquisition module 150 is used to acquire the tobacco brand and transmit the tobacco brand to the proportional regulating valve 120; the proportional regulating valve 120 adjusts its opening size based on the tobacco brand so that the ejection pressure of the ejector compressed air pipe 130 matches the tobacco brand.

[0036] Understandably, this flavoring ejector device includes a control unit (such as a PLC or dedicated controller). The control unit stores a table corresponding to different tobacco brands and ejector pressures, as well as a table corresponding to different ejector pressures and the opening degree of the proportional control valve 120. Both the acquisition module 150 and the proportional control valve 120 are communicatively connected to the control unit. Therefore, by acquiring the tobacco brand through the acquisition module 150 and transmitting this information to the control unit, the corresponding ejector pressure and the opening degree of the proportional control valve 120 can be determined. This allows the control signal to be transmitted to the proportional control valve 120 to adjust its opening, thereby regulating the ejector pressure of the ejector compressed air tube 130 to match the required ejector pressure for the corresponding tobacco brand. This eliminates the need for manual adjustment, reducing labor intensity and improving work efficiency. Furthermore, it enhances the control accuracy of the ejector pressure during flavoring, ensuring that the flavoring is fully atomized, resulting in sufficiently fine and uniformly distributed flavoring particles that are fully absorbed by the tobacco, thus improving the flavoring effect. By precisely controlling the injection pressure, the application effect of fragrances can be kept consistent across different brands, ensuring consistent product quality.

[0037] In some embodiments, the proportional control valve 120 can be an electronic compressed air proportional control valve 120, which adjusts the valve opening by receiving an electrical signal from the control unit. For example, increasing the valve opening increases the compressed air inflow, causing the ejector pressure to rise; decreasing the valve opening reduces the compressed air inflow, causing the ejector pressure to fall. The electronic compressed air proportional control valve 120 allows for continuous stepless adjustment of the ejector pressure, providing higher accuracy and response speed compared to traditional mechanical adjustment methods. It can automatically adjust the ejector pressure according to different production grades without manual intervention, improving the automation and efficiency of production.

[0038] In some embodiments, the proportional control valve 120 includes a servo mechanism connected to the proportional control valve 120. The servo mechanism is used to receive control commands from the control unit to adjust the opening degree of the proportional control valve 120. In some embodiments, the servo mechanism can be a servo motor, which drives the proportional control valve 120 to precisely control the ejector pressure.

[0039] In some embodiments, by acquiring the production work order through the acquisition module 150, the corresponding tobacco grade can be obtained, thereby determining the corresponding ejection pressure. The acquisition module 150 can be an industrial communication interface module, which interacts with the production management system through an industrial communication protocol. Understandably, during the production process, the production management system generates a production work order based on the tobacco grade and pushes it to the control unit on the production line. In some embodiments, the acquisition module 150 can also be a barcode or QR code scanning module. The production work order information can be printed on a label in the form of a barcode or QR code, and the acquisition module 150 reads the tobacco grade by scanning these labels. After scanning, the information is transmitted to the control unit to determine the corresponding ejection pressure. In some embodiments, the acquisition module 150 can be a human-machine interface (HMI) with a touchscreen, where the operator manually inputs the tobacco grade of the current production work order. The input information is transmitted to the control unit for setting the corresponding ejection pressure.

[0040] See Figure 1 and Figure 2 As shown, in one embodiment, a pressure detection element 160 is further provided on the ejector compressed air tube 130. The pressure detection element 160 is used to detect the ejector pressure value of the ejector compressed air tube 130. The actual ejector pressure is detected by the pressure detection element 160 and fed back to the control unit. The control unit compares the difference between the set ejector pressure value and the actual measured ejector pressure value, and then fine-tunes the electrical signal to further adjust the valve opening until the preset pressure level is reached. In some embodiments, the pressure detection element is a pressure sensor.

[0041] In some embodiments, an alarm pressure threshold can be set. If the actual ejector pressure exceeds the alarm pressure threshold, the system is deemed to be malfunctioning, and an ejector pressure alarm is triggered. In practical applications, by setting an alarm pressure threshold, it is determined whether the ejector pressure is abnormal. If so, the system is shut down, and the fault is resolved through maintenance.

[0042] See Figure 1 and Figure 2As shown, in one embodiment, the compressed air inlet pipe 110 is also equipped with a pressure reducing valve 171. Understandably, the compressed air inlet pipe 110 is directly connected to the compressed air source 190, so the compressed air exiting the compressed air source 190 typically has a high initial pressure, while different stages in practical applications may require different operating pressures. The pressure reducing valve 171 can adjust the high-pressure gas to a pressure level suitable for specific process requirements. At the same time, excessively high pressure may damage downstream nozzles 140, pipes, and other components, and even affect the quality of flavor atomization. Using the pressure reducing valve 171 can prevent this from happening, protecting the equipment from damage. The pressure reducing valve 171 can be a manual valve or a solenoid valve. For example, in the embodiment shown in the figures, the pressure reducing valve 171 is a manual valve, controlled by a hand valve 172.

[0043] See Figure 1 and Figure 2 As shown, in one embodiment, the ejector compressed air pipe 130 is also equipped with an on / off valve 180. The on / off valve 180 is used to open or close the airflow passage, thereby controlling whether compressed air enters the system. This allows operators to flexibly start or stop the air supply according to actual needs. In the event of a malfunction or other emergency, the air source can be quickly cut off by closing the on / off valve 180 to prevent the accident from escalating and to ensure the safety of personnel and equipment. When system maintenance or repair is required, closing the on / off valve 180 ensures that no airflow passes through the relevant area, facilitating safe operation. By using the on / off valve 180 appropriately and closing the valve in a timely manner when air supply is not needed, unnecessary energy consumption can be effectively reduced, and operating costs can be lowered. The on / off valve 180 can be a manual valve or a solenoid valve. For example, in the embodiment shown in the attached figure, the on / off valve 180 is a solenoid valve.

[0044] See Figure 1 and Figure 2 As shown, in one embodiment, the on / off valve 180 is positioned between the proportional control valve 120 and the nozzle 140. Located downstream of the proportional control valve 120, the on / off valve 180 allows for rapid opening and closing of the air supply to the nozzle 140. This provides finer timing control, facilitating immediate stopping of the air supply when needed, avoiding waste, and improving operational accuracy. When the system requires maintenance or replacement of the nozzle 140, the on / off valve 180 can cut off the airflow to a portion of the nozzle 140, ensuring operator safety. It allows for individual control of the operating state of each nozzle 140 without affecting the overall system operation. Due to its proximity to the nozzle 140, the on / off valve 180 has a shorter response time, enabling it to respond more quickly to commands issued by the control unit.

[0045] See Figure 1 and Figure 2As shown, in one embodiment, the nozzle 140 includes an atomizing spray section 146 with multiple spray nozzles 143. These multiple nozzles 143 disperse the liquid flavoring into more and finer droplets, significantly improving atomization quality and allowing the flavoring to form a more uniform coating on the surface of tobacco or other materials. In some embodiments, each nozzle 143 can be designed with different sizes or angles to precisely control the amount of flavoring flowing out at each location, ensuring consistent flavoring distribution throughout the spray area. For targets of different shapes and sizes (such as cigarette filters, leaves, etc.), the multi-nozzle structure 143 can adjust the spray direction and angle as needed to better adapt to various application scenarios. If one nozzle 143 becomes clogged, the other nozzles 143 can still continue to operate, reducing the risk of the entire nozzle 140 failing due to a single point of failure.

[0046] See Figure 1 and Figure 2 As shown, in one embodiment, the nozzle 140 further includes a swirl section 144 located at the input end of the atomizing spray section 146. The swirl section 144 buffers saturated vapor; after the gas enters the swirl section 144, it forms a rotational motion under the action of centrifugal force. This rotational motion increases the shear force between the gases, further breaking down the droplets and making them finer. Simultaneously, it also promotes the uniform spatial distribution of the fragrance.

[0047] See Figure 1 and Figure 2 As shown, in one embodiment, the nozzle 140 further includes a converging section 145, with the swirl section 144 pointing in the direction of the atomizing jet section 146, and the flow area of ​​the converging section 145 gradually decreasing. When the fluid passes through the converging section 145, the flow velocity increases due to the reduced cross-sectional area, according to the continuity equation (mass conservation equation), further enhancing the atomization effect.

[0048] See Figure 1 and Figure 2 As shown, in one embodiment, a stirring section 147 is provided inside the nozzle 140 to stir the fragrance entering the nozzle 140. If the fragrance is a mixture of multiple components, the stirring section 147 can ensure that the components are fully mixed within the nozzle 140, avoiding problems such as excessively high or low local concentrations. For fragrances containing solid particles or insoluble components, the stirring section 147 helps maintain the uniform distribution of these particles in the liquid, preventing them from settling or separating. The stirred fragrance is more uniform and has better flowability, which helps to form finer and more uniform droplets in the spray section, improving the final atomization effect. The stirring action can reduce the residence time of the fragrance on the inner surface of the nozzle 140, thereby reducing the possibility of fragrance components adhering and causing the nozzle 140 to become clogged.

[0049] like Figure 3 As shown, in some embodiments, the stirring unit 147 can be a spiral blade installed at the fragrance inlet 142 of the nozzle 140, typically arranged along the direction of fluid flow. When the fragrance passes through the nozzle 140, the spiral blades guide the liquid to rotate, increasing the turbulence and promoting mixing. In some embodiments, the stirring unit 147 can also be a perforated plate, i.e., a plate with multiple small holes, installed at the fragrance inlet 142 of the nozzle 140. As the liquid fragrance passes through these small holes, it is divided into fine streams and then re-converges, achieving a certain degree of mixing in the process and improving the overall effect and efficiency of the fragrance application process.

[0050] Furthermore, one embodiment of this application also provides a tobacco flavoring machine, including the flavoring ejector device described above. Taking a drum-type tobacco flavoring machine as an example, the tobacco shreds are fed into the drum of the tobacco flavoring machine by a conveyor. The tobacco shreds move towards the discharge end as the drum rotates, relying on their own weight and the tilt angle of the drum. The flavoring ejector device can be set at the feed end of the drum. Flavoring is sprayed into the tobacco shreds inside the drum through the nozzle of the flavoring ejector device to flavor the tobacco shreds.

[0051] During the flavoring process, the injection pressure can be matched to the tobacco brand without manual adjustment. This not only reduces manual labor and improves work efficiency but also enhances the precision of injection pressure control, ensuring that the flavoring is fully atomized. This results in sufficiently fine and evenly distributed flavoring particles that are fully absorbed by the tobacco, improving the flavoring effect. Precise control of the injection pressure allows for consistent flavoring application across different brands, ensuring product quality consistency.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A scented ejector device, characterized in that, The scented ejector device includes: Compressed air intake pipe (110), wherein the compressed air intake pipe (110) is provided with a proportional regulating valve (120). An ejector compressed air tube (130) is connected to the output end of the proportional control valve (120); Fragrance tube (210); The nozzle (140) has a compressed air inlet (141), a fragrance inlet (142) and a spray port (143). The compressed air inlet (141) is connected to the output end of the ejector compressed air tube (130), and the fragrance inlet (142) is connected to the output end of the fragrance tube (210). Acquisition module (150), the acquisition module (150) is used to acquire tobacco brand number; The control unit, the acquisition module (150) and the proportional adjustment valve (120) are both connected to the control unit in communication. The control unit adjusts the opening of the proportional adjustment valve (120) based on the tobacco brand so that the ejection pressure of the ejector compressed air tube (130) matches the tobacco brand.

2. The perfumed ejector device according to claim 1, characterized in that, The ejector compressed air tube (130) is also provided with a pressure detection element (160), which is used to detect the ejection pressure value of the ejector compressed air tube (130).

3. The scent entraining ejector device according to claim 1, characterized in that The compressed air intake pipe (110) is also equipped with a pressure reducing valve (171).

4. The scent entraining ejector device according to claim 1, characterized in that The ejector compressed air pipe (130) is also equipped with an on / off valve (180).

5. The perfumed ejector device according to claim 4, characterized in that, The on / off valve (180) is disposed between the proportional regulating valve (120) and the nozzle (140).

6. The perfumed ejector device according to claim 1, characterized in that, The nozzle (140) includes an atomizing spray section (146) which is configured with a plurality of spray ports (143).

7. The perfumed ejector device according to claim 6, characterized in that, The nozzle (140) also includes a swirl section (144) located at the input end of the atomizing spray section (146).

8. The perfumed ejector device according to claim 7, characterized in that, The nozzle (140) further includes a constriction section (145) that gradually decreases in flow area from the swirling section (144) to the atomizing spray section (146).

9. The fragranced eductor device of claim 1, wherein, The nozzle (140) is provided with a stirring part (147), which is used to stir the fragrance entering the nozzle (140).

10. A tobacco flavoring machine characterized by comprising: Includes the scented ejection device as described in any one of claims 1 to 9.

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