Spraying angle regulation and control device and method for tobacco primary processing, leaf moistening, perfuming and charging atomizing nozzle

Abstract

The invention discloses a device and a method for regulating and controlling the spraying angle of a tobacco primary processing, leaf moistening, perfuming and charging atomizing nozzle, and belongs to the technical field of automatic control of tobacco primary processing equipment. The invention aims to solve the problems of poor accuracy, low consistency and serious raw material waste of manual nozzle angle adjustment and insufficient degree of freedom of an existing automatic adjustment device. The device comprises a regulation and control motor unit which is externally arranged on the outer side of a cylinder wall and comprises a first motor and a second motor; the angle adjustment execution unit is arranged in the cylinder and comprises a worm and gear assembly and a pitching adjustment shaft; the power transmission unit penetrates through the cylinder wall and comprises a first transmission shaft and a second transmission shaft. The first motor drives the worm and gear assembly to drive the nozzle to horizontally rotate, and the second motor drives the pitching adjusting shaft to drive the nozzle to vertically pitch. The invention further discloses a corresponding regulation and control method. The two-degree-of-freedom reliable automatic adjustment of the nozzle is realized, the adhesion uniformity of a medium is improved, and the waste of raw materials and auxiliary materials is reduced.

Description

A spray angle control device and method for atomizing nozzles used for tobacco processing, leaf moistening, flavoring, and additive addition. Technical Field

[0001] This invention belongs to the field of automatic control technology for tobacco processing equipment, specifically relating to a spray angle control device and control method for atomizing nozzles used for moistening leaves, adding flavoring and additives in tobacco processing. Background Technology

[0002] In the tobacco processing, leaf moistening, flavoring, and additive application are core steps in improving the sensory quality, processing performance, and overall quality stability of finished cigarettes. This process involves spraying additive media (such as sugars and humectants) and flavoring media (such as fragrances) onto the tobacco leaf surface through atomizing nozzles. The nozzle's spray angle directly affects the spatial distribution of the atomized liquid and its contact path with the tobacco leaf surface, thus determining the uniformity of adhesion. Simultaneously, the spray angle also affects the impact angle between the droplets and the tobacco leaf. If the impact angle is too small, the droplets easily bounce off the leaf surface, reducing the effective adhesion rate. Furthermore, if the spray angle is skewed, some liquid may fly directly over the tobacco leaf pile without contacting the leaves, increasing the amount of ineffective adhesion on the inner wall of the nozzle. An improper spray angle can easily lead to excessive localized adhesion of the tobacco leaf, resulting in yellow spots, or insufficient adhesion, affecting the processing effect. It also causes a double waste of raw tobacco materials and additives (additive media and flavoring media), significantly increasing production costs for the enterprise. Therefore, proper control of the spray angle is key to ensuring the pass rate of the flavoring and ingredient addition process.

[0003] In the tobacco industry production process, manual adjustment can be based on the operator's experience in the previous batch of production, combined with the current batch of tobacco leaf varieties and process parameters. With experience, the nozzle can be adjusted to any angle in multiple degrees of freedom, which can achieve flexible posture adjustment without preset trajectory, adapt to diverse working conditions, and has unique advantages that are difficult for existing automated devices to replace.

[0004] However, manual adjustment is affected by human factors such as the operator's experience level, operating habits, and mental state, resulting in poor accuracy and inconsistent adjustment effects. It is usually impossible to achieve the ideal angle in one adjustment. Furthermore, the production process is continuous, making it difficult to stop production midway to readjust the nozzle posture. The final spraying effect can only be confirmed after the entire batch is produced; therefore, the debugging process requires verification through a full batch. If the angle adjustment does not meet the standards, readjustment and re-feeding tests are necessary, easily leading to a significant waste of tobacco raw materials and auxiliary materials. Therefore, these problems make manual adjustment methods unsuitable for meeting the automation and standardization requirements of modern tobacco processing.

[0005] To compensate for the shortcomings of manual adjustment, while existing technologies have developed automated adjustment devices for tobacco flavoring and additive nozzles, which can improve the standardization of adjustment and reduce human interference through electric control, the adjustment flexibility of these devices falls far short of actual production needs. Due to mechanical limitations, existing automated adjustment devices have relatively fixed adjustment dimensions and operating methods. Unlike manual adjustment, they cannot flexibly adjust the nozzle's posture in multiple degrees of freedom according to changes in tobacco leaf variety, liquor characteristics, and process parameters. This makes it difficult to achieve personalized and targeted control of the spray angle, resulting in poor practical performance. Consequently, existing automated adjustment solutions are difficult to widely adopt in the industry. Tobacco companies still generally use manual adjustment of the nozzle spray angle in the leaf moistening, flavoring, and additive processes, making it difficult to truly achieve automation and standardization in this process.

[0006] This application is submitted to address the aforementioned issues. Summary of the Invention

[0007] In view of the shortcomings of the existing technology, the purpose of this invention is to overcome the defects of poor accuracy, low consistency, and waste of raw materials and auxiliary materials in the process of manually adjusting the nozzle spray angle in tobacco processing, leaf conditioning, flavoring and adding. At the same time, it solves the technical problems of existing automated adjustment devices having a simple mechanical structure, insufficient adjustment freedom, and inability to adapt to the flexible control requirements of multiple varieties of tobacco leaves and changing process parameters.

[0008] The purpose of this invention is to provide a spray angle control device and method for atomizing nozzles used in tobacco leaf conditioning, flavoring, and additive processing. By using external dual motors in conjunction with an internal worm gear and pitch adjustment structure, precise and automated adjustment of the atomizing nozzle in both horizontal and vertical planes is achieved, replacing manual adjustment and reducing human interference. Simultaneously, a telescopic universal joint transmission and dynamic sealing structure are employed to adapt to the sealed working conditions of the leaf conditioning and additive cylinder and the need for installation deviation compensation, improving adjustment flexibility and equipment sealing. Furthermore, closed-loop control further optimizes the angle adjustment accuracy and real-time performance, ultimately improving the uniformity of the flavoring and additive medium's adhesion to the tobacco leaf surface, reducing raw material and auxiliary material waste, and meeting the needs of automated, standardized, and high-precision production upgrades in tobacco leaf conditioning.

[0009] The technical solution adopted in this invention is as follows:

[0010] The first aspect of this invention provides an atomizing nozzle control device for tobacco processing, leaf moistening, flavoring, and additive application, comprising:

[0011] The control motor unit is located outside the cylinder wall of the leaf feeding cylinder. The control motor unit includes a first motor 8 and a second motor 6. The first motor 8 is used to output the power to rotate around the vertical axis to drive the atomizing nozzle 1 to rotate in the horizontal plane. The second motor 6 is used to output the power to pitch around the horizontal axis to drive the atomizing nozzle 1 to pitch in the vertical plane.

[0012] An angle adjustment actuator is installed inside the leaf feeding cylinder. The angle adjustment actuator includes a worm gear assembly 2 and a pitch adjustment shaft 3. The worm gear assembly 2 has a platform fixed on the worm gear and rotating with the worm gear. A bearing seat 10 is fixed on the platform. The pitch adjustment shaft 3 is horizontally arranged and rotatably supported in the bearing seat 10 by a bearing. The atomizing nozzle 1 is fixedly installed on the pitch adjustment shaft 3.

[0013] A power transmission unit is installed in the wall of the lubricating feed cylinder. The power transmission unit includes a first transmission shaft 4 and a second transmission shaft 5. The first transmission shaft 4 connects the first motor 8 to the worm of the worm gear assembly 2, and the second transmission shaft 5 connects the second motor 6 to the pitch adjustment shaft 3.

[0014] The first motor 8 drives the worm gear assembly 2 through the first transmission shaft 4 to rotate the atomizing nozzle 1 in the horizontal plane. The second motor 6 drives the pitch adjustment shaft 3 to rotate around its own axis through the second transmission shaft 5 to pitch the atomizing nozzle 1 in the vertical plane.

[0015] Preferably, the angle adjustment execution unit further includes a mounting base 9, which is fixedly connected to the inner wall of the lubricating leaf feeding cylinder, and the housing of the worm gear assembly 2 is fixedly mounted on the mounting base 9.

[0016] Preferably, both the first drive shaft 4 and the second drive shaft 5 are telescopic universal joint couplings.

[0017] Preferably, a dynamic sealing bearing 7 is provided between the regulating motor unit and the wall of the leaf feeding cylinder.

[0018] Preferably, the telescopic part of the telescopic universal joint coupling is covered with a silicone protective sleeve.

[0019] Preferably, both the first motor 8 and the second motor 6 are joint motors for industrial robotic arms.

[0020] Preferably, the dynamic seal bearing 7 includes a double-layer seal ring arranged axially.

[0021] Preferably, the silicone protective sleeve has a corrugated pipe structure.

[0022] The second aspect of this invention provides a method for controlling an atomizing nozzle used in tobacco processing for moistening, flavoring, and adding ingredients, applied to the atomizing nozzle control device described in the first aspect, comprising the following steps:

[0023] S1. The control motor unit is placed outside the cylinder wall of the leaf feeding cylinder, the angle adjustment execution unit is placed inside the leaf feeding cylinder, and the power transmission unit is inserted through the cylinder wall of the leaf feeding cylinder. The first motor 8 is connected to the worm of the worm gear assembly 2 through the first transmission shaft 4, and the second motor 6 is connected to the pitch adjustment shaft 3 through the second transmission shaft 5.

[0024] S2. Control the first motor 8 to output power to rotate around the vertical axis, drive the worm gear assembly 2 through the first transmission shaft 4, and drive the atomizing nozzle 1 to rotate to the target angle in the horizontal plane;

[0025] S3. Control the second motor 6 to output the power to pitch around the horizontal axis, and drive the pitch adjustment shaft 3 to rotate around its own axis through the second transmission shaft 5, thereby driving the atomizing nozzle 1 to pitch to the target angle in the vertical plane.

[0026] Preferably, when controlling the rotation of the first motor 8 and the second motor 6, an angle adjustment command is generated based on the actual spraying state feedback of the atomizing nozzle 1 to achieve closed-loop control.

[0027] The advantages of this invention over the prior art are as follows:

[0028] 1. This invention places the control motor unit externally on the outer wall of the lubrication and feeding cylinder, while the angle adjustment actuator is built into the cylinder, and the power transmission unit passes through the cylinder wall to transmit power. This structure physically isolates the electrical components, which are not resistant to high temperatures and humidity, from the actuator, effectively avoiding the impact of the high temperature (80-90℃) and high humidity (humidity > 90%) environment inside the cylinder on the motor and other electrical equipment, and significantly improving the operational reliability and service life of the device under harsh working conditions.

[0029] 2. This invention uses a first motor to drive a worm gear assembly, causing the atomizing nozzle to rotate in the horizontal plane; and a second motor to drive a pitch adjustment shaft, causing the atomizing nozzle to pitch in the vertical plane. These two rotational degrees of freedom are independent yet coordinated, enabling the nozzle to point at any angle in three-dimensional space, overcoming the limitations of existing automated adjustment devices that have fixed adjustment dimensions and poor flexibility. Combined with the 0.1° precision control capability of an industrial robotic arm's joint motor, it allows for precise quantitative adjustment of the nozzle's spray angle, replacing manual experience-based adjustments and eliminating human interference.

[0030] 3. This invention uses a telescopic universal joint coupling as the transmission element, which can not only transmit torque but also adapt to positional deviations and axial angles between the motor and the actuator. When the horizontal turntable rotates, causing a change in the direction of the pitch adjustment shaft, the universal joint coupling can dynamically compensate for the angular deviation, ensuring smooth power transmission at all times. This structure reduces the installation accuracy requirements of each component and improves the installation convenience and spatial adaptability of the device.

[0031] 4. This invention incorporates a dynamic sealing bearing between the control motor unit and the cylinder wall, effectively preventing hot steam inside the cylinder from leaking along the motor output shaft to the motor side, thus avoiding the risk of short circuits in electrical equipment under humid and hot conditions. Simultaneously, a silicone protective sleeve is fitted over the telescopic part of the telescopic universal joint coupling to prevent sugar vapor from adhering to the inside of the telescopic rod, thus preventing the rod from sticking and failing after the sugar dries. The double-layer sealing ring and bellows structure further enhance sealing and protection performance, ensuring the long-term effectiveness of the mechanical structure.

[0032] 5. This invention achieves closed-loop control by generating angle adjustment commands based on feedback from the actual spraying state of the atomizing nozzle. During the flavoring and additive process, the nozzle angle can be automatically corrected based on the real-time spraying effect, further optimizing the angle adjustment accuracy and response speed, ensuring that different batches and varieties of tobacco leaves can obtain the best spray uniformity and adhesion effect.

[0033] 6. This invention, through precise dual-degree-of-freedom angle control, enables the flavoring and additive media to adhere evenly and efficiently to the surface of tobacco leaves, effectively avoiding problems such as yellow spots on tobacco, uneven adhesion, and media splashing onto the cylinder wall caused by improper angles. This significantly reduces the waste of tobacco raw materials and flavoring and additive media, lowers enterprise production costs, and improves the processing qualification rate and product consistency of the leaf moistening, flavoring, and additive processes. It provides reliable technical support for the automation, standardization, and high-precision upgrading of tobacco processing. Attached Figure Description

[0034] 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 drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 is a front view of the atomizing nozzle control device provided in an embodiment of the present invention;

[0036] Figure 2 is a top view of the atomizing nozzle control device provided in an embodiment of the present invention;

[0037] Figure 3 is a first isometric perspective view of the atomizing nozzle control device provided in an embodiment of the present invention;

[0038] Figure 4 is a second isometric perspective view of the atomizing nozzle control device provided in an embodiment of the present invention, in which part of the cylinder wall is not shown;

[0039] Reference numerals in the attached drawings: 1. Atomizing nozzle; 2. Worm gear assembly; 3. Pitch adjustment shaft; 4. First drive shaft; 5. Second drive shaft; 6. Second motor; 7. Dynamic seal bearing; 8. First motor; 9. Mounting base; 10. Bearing housing. Detailed Implementation

[0040] 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 embodiments of the present invention, and not all embodiments. 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.

[0041] Example 1

[0042] This embodiment provides an atomizing nozzle control device for tobacco processing, leaf moistening, flavoring and adding ingredients, as shown in Figures 1 to 4. The device includes a control motor unit, an angle adjustment execution unit and a power transmission unit.

[0043] The control motor unit is located outside the cylinder wall of the leaf-feeding cylinder and is used to provide power output. Specifically, the control motor unit includes a first motor 8 and a second motor 6. The first motor 8 is used to output power to rotate around the vertical axis to drive the atomizing nozzle 1 to rotate in the horizontal plane; the second motor 6 is used to output power to pitch around the horizontal axis to drive the atomizing nozzle 1 to pitch in the vertical plane.

[0044] In this embodiment, the first motor 8 and the second motor 6 are preferably industrial robotic arm joint motors. This type of motor is characterized by its small size and high control precision; its output shaft rotation angle can achieve a precision control requirement of 0.1°, which can meet the accuracy requirements of nozzle angle adjustment in the flavoring and ingredient adding process. Industrial robotic arm joint motors are well-known and mature products in the field; their structural principles and control methods can be referred to existing technologies and will not be elaborated here.

[0045] To prevent the high temperature and humidity environment inside the leaf-lubricating feeding cylinder from affecting the motor, this device includes a dynamic sealing bearing 7 between the control motor unit and the cylinder wall. As shown in Figure 1, the dynamic sealing bearing 7 is sleeved on the motor output shaft and embedded in the opening in the cylinder wall, forming a sealing barrier. Preferably, the dynamic sealing bearing 7 includes a double-layer sealing ring arranged axially. The double-layer sealing structure effectively prevents hot steam inside the cylinder from leaking to the motor side along the motor output shaft, avoiding short-circuit faults in electrical equipment under humid and hot conditions. The dynamic sealing bearing and its double-layer sealing ring structure are well-known sealing technologies in the art, and their specific selection and installation methods can be implemented according to the standards in the mechanical design manual.

[0046] An angle adjustment actuator is located inside the leaf-feeding cylinder and is used to directly drive the atomizing nozzle 1 to achieve angle adjustment. The angle adjustment actuator includes a worm gear assembly 2 and a pitch adjustment shaft 3.

[0047] The worm gear assembly 2 has a platform fixed to the worm wheel and rotating with it. Specifically, the housing of the worm gear assembly 2 is fixedly connected to the inner wall of the lubricating feed cylinder via a mounting base 9. The worm wheel is rotatably supported within the housing, with its axis of rotation parallel to the vertical direction; the worm is horizontally arranged and supported within the housing by bearings, with its axis perpendicularly intersecting the axis of the worm wheel. One end of the worm extends out of the housing and is connected to the first drive shaft 4. When the worm rotates, it drives the worm wheel to rotate around the vertical axis, and the platform fixed to the worm wheel rotates synchronously with the worm wheel. A bearing seat 10 is fixed on the platform, and the pitch adjustment shaft 3 is horizontally arranged and rotatably supported within the bearing seat 10 via bearings. The atomizing nozzle 1 is fixedly mounted on the pitch adjustment shaft 3, achieving pitch movement as the pitch adjustment shaft 3 rotates.

[0048] Worm gear assemblies are well-known speed reduction transmission mechanisms in the art. The meshing principle, transmission ratio, and self-locking characteristics of the internal worm gear and worm can be found in existing technologies and will not be described in detail here. The key to this embodiment is that the platform of the worm gear assembly is used as a carrier for horizontal rotation, providing an installation reference for the pitch adjustment axis, thereby achieving independent control with two degrees of freedom.

[0049] The power transmission unit passes through the wall of the lubricating feed cylinder and is used to transmit the power of the control motor unit to the angle adjustment actuator. The power transmission unit includes a first drive shaft 4 and a second drive shaft 5.

[0050] The first drive shaft 4 connects the first motor 8 to the worm gear of the worm gear assembly 2, and is used to transmit horizontal rotational power. The second drive shaft 5 connects the second motor 6 to the pitch adjustment shaft 3, and is used to transmit pitch power.

[0051] In this embodiment, both the first drive shaft 4 and the second drive shaft 5 preferably employ telescopic universal joint couplings. Telescopic universal joint couplings are well-known transmission components in the art, with both ends connected to the motor output shaft and the actuator input shaft via keyways or flanges. This coupling has two important functions: first, it allows for a certain axial angle between the two shafts, accommodating installation deviations between the motor and the actuator; second, it has axial telescopic functionality, allowing for flexible adjustment of the transmission distance. When the rotation of the horizontal turntable causes a change in the direction of the pitch adjustment shaft 3, the telescopic universal joint coupling can dynamically compensate for the angular deviation, ensuring smooth power transmission at all times. The specific structure and installation method of the telescopic universal joint coupling can be implemented according to standards in mechanical design manuals.

[0052] To prevent sugar vapors from adhering to the telescopic rod of the telescopic universal joint coupling during the flavoring and adding process, this embodiment includes a silicone protective sleeve on the outside of the telescopic part. Preferably, the silicone protective sleeve has a bellows structure, which can freely expand and contract with the coupling while maintaining a tight wrap around the telescopic rod, effectively preventing the telescopic rod from sticking and failing after the sugar dries. The silicone protective sleeve is made of high-temperature resistant silicone material, capable of withstanding temperatures up to 220°C. Its material and molding process are well-known in the art and will not be described further here.

[0053] The working principle of the atomizing nozzle control device provided in this embodiment is as follows:

[0054] When horizontal angle adjustment is required, the control system sends a rotation command to the first motor 8. The first motor 8 outputs power to rotate around the vertical axis, which drives the worm of the worm gear assembly 2 to rotate through the first transmission shaft 4. The worm drives the worm wheel and the platform to rotate in the horizontal plane. The platform drives the bearing seat 10, the pitch adjustment shaft 3 and the atomizing nozzle 1 to rotate horizontally as a whole, thereby realizing the angle adjustment of the nozzle in the horizontal plane.

[0055] When pitch angle adjustment is required, the control system sends a rotation command to the second motor 6. The second motor 6 outputs pitch power around the horizontal axis, which drives the pitch adjustment shaft 3 to rotate around its own axis through the second transmission shaft 5. The atomizing nozzle 1 pitches synchronously with the shaft, thereby realizing the angle adjustment of the nozzle in the vertical plane.

[0056] The two directional adjustments are independent yet coordinated, allowing the atomizing nozzle 1 to point at any angle in three-dimensional space. Combined with the 0.1° precision control capability of the industrial robotic arm's joint motor, this device can precisely quantify and adjust the nozzle's spray angle, replacing the traditional manual experience-based adjustment method.

[0057] Example 2

[0058] This embodiment provides a method for controlling an atomizing nozzle used in tobacco processing for moistening, flavoring, and adding ingredients. This method can be applied to the atomizing nozzle control device described in Embodiment 1. The method includes the following steps:

[0059] S1. Device Installation Steps

[0060] The control motor unit is placed outside the wall of the leaf-lubricating feeding cylinder, the angle adjustment actuator is placed inside the leaf-lubricating feeding cylinder, and the power transmission unit is inserted through the wall of the leaf-lubricating feeding cylinder. Specifically, the first motor 8 is connected to the worm of the worm gear assembly 2 through the first transmission shaft 4, and the second motor 6 is connected to the pitch adjustment shaft 3 through the second transmission shaft 5.

[0061] During installation, the telescopic universal joint coupling allows for flexible adjustment of the transmission distance between the motor and the actuator, compensating for installation deviations. The dynamic seal bearing 7 ensures a tight seal where the motor output shaft passes through the cylinder wall, preventing leakage of hot steam from inside the cylinder.

[0062] S2, Horizontal Angle Adjustment Steps

[0063] The first motor 8 is controlled to output power to rotate around the vertical axis, which drives the worm gear assembly 2 through the first transmission shaft 4, causing the atomizing nozzle 1 to rotate to the target angle in the horizontal plane.

[0064] Specifically, the control system generates a horizontal angle adjustment command based on the process parameters. After receiving the command, the first motor 8 rotates by the corresponding angle. The power is transmitted to the worm gear through the first transmission shaft 4. The worm gear drives the worm wheel and the platform to rotate, so that the nozzle is accurately pointing to the target direction in the horizontal plane.

[0065] S3, Pitch Angle Adjustment Steps

[0066] The second motor 6 outputs power to pitch around the horizontal axis, which drives the pitch adjustment shaft 3 to rotate around its own axis through the second transmission shaft 5, thereby causing the atomizing nozzle 1 to pitch to the target angle in the vertical plane.

[0067] Specifically, the control system generates a pitch angle adjustment command based on the process parameters. After receiving the command, the second motor 6 rotates by the corresponding angle, and the power is transmitted to the pitch adjustment shaft 3 via the second transmission shaft 5. The shaft drives the nozzle to swing up and down in the vertical plane to the target pitch angle.

[0068] S4. Closed-loop control optimization steps (preferred)

[0069] When controlling the rotation of the first motor 8 and the second motor 6, an angle adjustment command is generated based on the actual spraying state feedback of the atomizing nozzle 1 to achieve closed-loop control.

[0070] Specifically, the spraying images of the atomizing nozzle can be acquired in real time using visual inspection equipment (such as an industrial camera). The control system analyzes and processes the images to determine whether the current spraying angle meets the process requirements. If a deviation exists, a correction command is automatically generated to adjust the rotation angle of the first motor 8 and / or the second motor 6 in real time until the optimal spraying effect is achieved. The visual inspection and image analysis technology can be implemented using image processing algorithms known in the art, and is not limited to specific methods here.

[0071] Through the above steps, this method achieves automated and high-precision control of the spray angle of the atomizing nozzle, eliminates the interference of human factors in manual adjustment, improves the processing consistency and product qualification rate of the flavoring and ingredient addition process, and reduces the waste of raw materials and auxiliary materials.

[0072] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, alterations, additions or substitutions made by those skilled in the art within the scope of the present invention should be protected by the present invention.

Claims

1. A spray angle control device for an atomizing nozzle used for tobacco processing, leaf moistening, flavoring, and additive addition, characterized in that, include: The regulating motor unit is located outside the cylinder wall of the leaf-lubricating feeding cylinder. The regulating motor unit includes a first motor (8) and a second motor (6). The first motor (8) is used to output power to rotate around the vertical axis to drive the atomizing nozzle (1) to rotate in the horizontal plane. The second motor (6) is used to output power to pitch around the horizontal axis to drive the atomizing nozzle (1) to pitch in the vertical plane. The angle adjustment execution unit is located inside the leaf-lubricating feeding cylinder. The angle adjustment execution unit includes a worm gear assembly (2) and a pitch adjustment shaft (3). The worm gear assembly (2) has a platform fixed on the worm gear and rotating with the worm gear. A bearing seat (10) is fixed on the platform. The pitch adjustment shaft (3) is arranged horizontally and rotatably supported on the bearing seat by a bearing. (10) Inside, the atomizing nozzle (1) is fixedly installed on the pitch adjustment shaft (3); the power transmission unit is installed through the cylinder wall of the leaf feeding cylinder. The power transmission unit includes a first transmission shaft (4) and a second transmission shaft (5). The first transmission shaft (4) connects the first motor (8) and the worm of the worm gear assembly (2). The second transmission shaft (5) connects the second motor (6) and the pitch adjustment shaft (3). The first motor (8) drives the worm gear assembly (2) through the first transmission shaft (4) to drive the atomizing nozzle (1) to rotate in the horizontal plane. The second motor (6) drives the pitch adjustment shaft (3) to rotate around its own axis through the second transmission shaft (5) to drive the atomizing nozzle (1) to pitch in the vertical plane.

2. The control device according to claim 1, characterized in that, The angle adjustment execution unit also includes a mounting base (9), which is fixedly connected to the inner wall of the lubricating leaf feeding cylinder, and the housing of the worm gear assembly (2) is fixedly installed on the mounting base (9).

3. The control device according to claim 1, characterized in that, Both the first drive shaft (4) and the second drive shaft (5) are telescopic universal joint couplings.

4. The atomizing nozzle control device according to claim 1, characterized in that, A dynamic sealing bearing (7) is provided between the control motor unit and the wall of the leaf feeding cylinder.

5. The control device according to claim 3, characterized in that, The telescopic universal joint coupling is covered with a silicone protective sleeve on its telescopic part.

6. The control device according to claim 1, characterized in that, Both the first motor (8) and the second motor (6) are joint motors for industrial robotic arms.

7. The control device according to claim 4, characterized in that, The dynamic seal bearing (7) includes a double-layer seal ring arranged axially.

8. The control device according to claim 5, characterized in that, The silicone protective sleeve has a corrugated pipe structure.

9. A method for adjusting the spray angle of an atomizing nozzle used for moistening, flavoring, and adding ingredients in tobacco processing, applied to the adjusting device according to any one of claims 1 to 8, characterized in that, Includes the following steps: S1. Place the control motor unit outside the cylinder wall of the leaf-lubricating feeding cylinder, set the angle adjustment execution unit inside the leaf-lubricating feeding cylinder, and pass the power transmission unit through the cylinder wall of the leaf-lubricating feeding cylinder. The first motor (8) is connected to the worm of the worm gear assembly (2) through the first transmission shaft (4), and the second motor (6) is connected to the pitch adjustment shaft (3) through the second transmission shaft (5). S2. Control the first motor (8) to output power to rotate around the vertical axis, drive the worm gear assembly (2) through the first transmission shaft (4), and drive the atomizing nozzle (1) to rotate to the target angle in the horizontal plane. S3. Control the second motor (6) to output power to pitch around the horizontal axis, drive the pitch adjustment shaft (3) to rotate around its own axis through the second transmission shaft (5), and drive the atomizing nozzle (1) to pitch to the target angle in the vertical plane.

10. The method according to claim 9, characterized in that, When controlling the first motor (8) and the second motor (6) to rotate, an angle adjustment command is generated based on the actual spraying state feedback of the atomizing nozzle (1) to achieve closed-loop control.

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