Spice stirring device and control method

Abstract

The invention provides a spice stirring device and a control method. A tank body is provided with a containing cavity; the magnetic driving assembly is arranged outside the containing cavity, and at least part of the area, opposite to the magnetic driving assembly, of the tank body is a magnetic permeable area; the magnetic stirring assembly is arranged in the containing cavity and is opposite to the magnetic permeable area, and the projection of the magnetic stirring assembly on the magnetic permeable area and the projection of the magnetic driving assembly on the magnetic permeable area are at least partially overlapped; wherein the magnetic driving assembly is configured to generate a rotating magnetic field, magnetic coupling is formed through the magnetic permeable area and the magnetic stirring assembly to achieve non-contact transmission, the magnetic stirring assembly is driven to rotate, and the magnetic stirring assembly is configured to stir spices in the containing cavity. The problem that a traditional mechanical seal is prone to leakage is effectively solved, the stirring stability is higher, and therefore the safety and sealing reliability in the stirring process are ensured.

Description

Technical Field

[0001] This application relates to the field of tobacco preparation technology, and in particular to a flavoring stirring device and control method. Background Technology

[0002] In the tobacco processing technology, stirring in the flavoring tank is a key step to ensure that the flavoring liquid is mixed evenly, to avoid sedimentation and blockage of pipelines, and to ensure the accuracy of flavoring.

[0003] In related technologies, pneumatic or mechanical stirring is generally used. Pneumatic stirring relies on compressed air, which can easily lead to a drop in the temperature of the fragrance liquid, affecting the stability of the feeding temperature. Furthermore, the release of volatile odors can cause fragrance waste and pollute the production environment. Mechanical stirring has extremely high requirements for the neutrality of the stirring shaft. Deviation can easily cause tank vibration. Long-term use can lead to seal failure and fragrance liquid leakage. At the same time, the maintenance cost is high, and regular inspection and replacement of parts are required, which increases the company's operating costs.

[0004] Therefore, there is an urgent need to improve the existing spice tank mixing technology in order to enhance the quality and efficiency of tobacco processing. Summary of the Invention

[0005] This application provides a spice stirring device and control method. Through a non-contact transmission design with magnetic coupling, it effectively solves the problem of easy leakage of traditional mechanical seals, resulting in higher stirring stability and thus ensuring the safety and sealing reliability of the stirring process.

[0006] In a first aspect, embodiments of this application provide a spice stirring apparatus, comprising:

[0007] The tank body has a receiving cavity;

[0008] A magnetic drive assembly is disposed outside the receiving cavity, and at least a portion of the tank body opposite to the magnetic drive assembly is a magnetically permeable area;

[0009] A magnetic stirring assembly is disposed in the receiving cavity and arranged opposite to the magnetically permeable region, wherein the projection of the magnetic stirring assembly on the magnetically permeable region at least partially overlaps with the projection of the magnetically driven assembly on the magnetically permeable region;

[0010] The magnetic drive component is configured to generate a rotating magnetic field and achieve non-contact transmission by forming a magnetic coupling with the magnetic stirring component through the magnetic permeable zone, thereby driving the magnetic stirring component to rotate. The magnetic stirring component is configured to stir the spices in the receiving cavity.

[0011] In one embodiment, the magnetic drive assembly includes a drive motor and a first magnet group, the drive motor having a rotor, and the first magnet group being embedded in the rotor and rotating synchronously with the rotor;

[0012] The first magnet group includes multiple pairs of first permanent magnets, which are arranged at intervals along the circumference of the rotor, and the magnetic poles of adjacent first permanent magnets are arranged in an alternating N-S pattern.

[0013] When the first magnet assembly rotates synchronously with the rotor, it forms a magnetic coupling with the magnetic stirring assembly.

[0014] In one embodiment, the magnetic stirring assembly includes a stirring paddle and a second magnet assembly, the second magnet assembly being embedded in the stirring paddle;

[0015] The second magnet group includes multiple pairs of second permanent magnets, which are arranged at intervals along the circumference of the stirring paddle, with the magnetic poles of adjacent second permanent magnets arranged in an alternating N-S pattern.

[0016] The magnetic poles of each of the second permanent magnets are arranged opposite to the magnetic poles of the first permanent magnet, and are configured to rotate under the drive of the drive motor.

[0017] In one embodiment, the shortest distance between the N pole of the first permanent magnet and the S pole of the second permanent magnet is between 3-8 mm; and / or, the shortest distance between the S pole of the first permanent magnet and the N pole of the second permanent magnet is between 3-8 mm.

[0018] In one embodiment, a temperature control component and a controller are further included, the temperature control component and the controller being electrically connected;

[0019] The temperature control component is disposed in the tank and configured to detect the temperature inside the tank and send a temperature signal to the controller. The controller is configured to receive the temperature signal and control the heating power of the temperature control component so that the internal temperature of the tank is maintained within a set range.

[0020] In one embodiment, the temperature control component includes a temperature sensor and a heating element;

[0021] The temperature sensor is configured to detect the temperature of the spices within the containment cavity;

[0022] The heating element is disposed around the outer wall of the tank and configured to adjust the heating power from the outside according to a temperature signal; and / or, the heating element is disposed around the inner wall of the tank and configured to adjust the heating power from the inside according to a temperature signal.

[0023] In one embodiment, a protective component is also included, which is disposed in the tank and electrically connected to the controller;

[0024] The protective component is configured to detect the liquid level of the fragrance and trigger a protective action when the liquid level is below a set threshold.

[0025] In one embodiment, the protective component includes a level detector and a flame retardant releaser;

[0026] The liquid level detector is disposed in the receiving cavity and is configured to detect the liquid level of the fragrance; when the liquid level is lower than the set threshold, a power-off signal is sent to the controller;

[0027] The flame retardant release device is located on the top of the can and is configured to send the power-off signal to the controller when a combustion signal is detected, and simultaneously release the flame retardant.

[0028] The controller is configured to control the heating element to shut off power upon receiving the power failure signal.

[0029] In one embodiment, the top of the tank is provided with a vent and an observation window; and / or, the bottom of the tank is provided with a drain valve, which is configured to open after cleaning the inside of the tank; and / or, the outer wall of the tank is provided with a heat insulation layer.

[0030] Secondly, embodiments of this application provide a method for controlling a spice stirring device, including:

[0031] The liquid level of the fragrance in the containing cavity is detected, and the liquid level is controlled to be within a set threshold.

[0032] Enter the parameter setting interface and input the process parameters;

[0033] The magnetic drive assembly and the magnetic stirring assembly are coupled magnetically to achieve non-contact transmission, and the magnetic stirring assembly is driven to rotate, thereby stirring the spices in the receiving cavity.

[0034] The temperature of the spices inside the cavity is detected, the heating power is dynamically adjusted in conjunction with the heating element, and a temperature signal is sent to the controller.

[0035] When the liquid level is lower than the set threshold, a power-off signal is sent to the controller, which controls the heating element to be powered off and simultaneously controls the magnetic drive assembly to reduce its speed to a safe speed.

[0036] The spice stirring device provided in this application includes a magnetic drive component and a magnetic stirring component. It adopts a non-contact transmission method to achieve physical isolation between the inside and outside of the tank, effectively solving the problem of easy leakage of traditional mechanical seals. It has higher stirring stability, thereby ensuring the safety and sealing reliability of the stirring process. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of this application, the drawings used in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 Schematic diagram of the spice stirring device provided in the embodiments of this application Figure 1 ;

[0039] Figure 2 Schematic diagram of the spice stirring device provided in the embodiments of this application Figure 2 ;

[0040] Figure 3 A top view of the spice stirring apparatus provided in an embodiment of this application;

[0041] Figure 4 A cross-sectional view of the spice stirring apparatus provided in the embodiments of this application;

[0042] Figure 5 A schematic diagram of the structure of the annular heating belt of the spice stirring device provided in the embodiments of this application;

[0043] Figure 6 This is a schematic diagram of the structure of the magnetic drive assembly provided in the embodiments of this application;

[0044] Figure 7 This is a schematic diagram of the structure of the magnetic stirring assembly provided in the embodiments of this application;

[0045] Figure 8 This is a schematic diagram showing the distance between the magnetic poles of the first permanent magnet and the second permanent magnet, provided in an embodiment of this application.

[0046] Figure label:

[0047] 100. Spice mixing device;

[0048] 110. Tank body; 111. Receiving cavity; 112. Vent; 113. Observation window; 114. Insulation layer; 115. Support leg; 116. Bracket; 117. Return tank; 118. Identifier; 119. Magnetic permeable zone;

[0049] 120. Magnetic drive assembly; 121. Drive motor; 1211. Rotor; 122. First magnet assembly; 1221. First permanent magnet; 123. Motor support leg; 124. Fixing frame; 125. Motor housing; 126. Magnetic field lines;

[0050] 130. Magnetic stirring assembly; 131. Stirring paddle; 132. Second magnet assembly; 1321. Second permanent magnet;

[0051] 140. Temperature control component; 141. Temperature sensor; 142. Heating element;

[0052] 151. Control box; 152. Control panel; 153. Display screen; 154. Buttons;

[0053] 161. Liquid level detector. Detailed Implementation

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] Currently, pneumatic or mechanical agitation is generally used. Pneumatic agitation relies on compressed air, which can easily lead to a drop in the temperature of the fragrance liquid, affecting the stability of the feeding temperature. Furthermore, the release of volatile odors can cause fragrance waste and pollute the production environment. Mechanical agitation has extremely high requirements for the neutrality of the agitator shaft. Deviation can easily cause tank vibration. Long-term use can lead to seal failure and fragrance liquid leakage. At the same time, maintenance costs are high, requiring regular inspection and replacement of parts, which increases the company's operating costs.

[0059] To address the aforementioned issues, this application provides a spice stirring device that includes a magnetic drive assembly and a magnetic stirring assembly. By employing a non-contact transmission method, it achieves physical isolation between the inside and outside of the tank, effectively solving the problem of easy leakage in traditional mechanical seals. This results in higher stirring stability and ensures the safety and sealing reliability of the stirring process.

[0060] The following will combine Figures 1 to 8 The specific structure of the spice stirring device provided in the embodiments of this application will be described.

[0061] Reference Figure 1 and Figure 2 As shown, this embodiment provides a spice stirring device 100, including a tank 110, a magnetic drive assembly 120 and a magnetic stirring assembly 130. The tank 110 has a receiving cavity 111, the magnetic drive assembly 120 is disposed outside the receiving cavity 111, and the magnetic stirring assembly 130 is disposed in the receiving cavity 111.

[0062] Among them, at least a portion of the tank body 110 opposite to the magnetic drive assembly 120 is a magnetically permeable region 119 (e.g., Figure 1 and Figure 4 The magnetic stirring assembly 130 and the magnetic permeable zone 119 are arranged opposite each other, and the projection of the magnetic stirring assembly 130 on the magnetic permeable zone 119 overlaps at least partially with the projection of the magnetic drive assembly 120 on the magnetic permeable zone 119.

[0063] It should be noted that the magnetically permeable area 119 is a special region on the tank 110 that allows magnetic lines of force to pass through. It can be made of materials with magnetic permeability, such as high borosilicate glass or ceramic materials. Furthermore, the non-magnetically permeable area 119 of the tank 110 does not need to bear the function of magnetic force transmission; its material can be ordinary carbon steel or composite plate, taking into account both lightweight and corrosion resistance, while also providing high sealing performance. This embodiment does not impose any limitations on this.

[0064] For example, the magnetically permeable region 119 can be Figure 1 and Figure 4 As shown in the dashed box in the image.

[0065] Furthermore, the area and shape of the magnetic permeable zone 119 are not limited. For example, its area and shape can be adapted to the size of the magnetic drive assembly 120 and the magnetic stirring assembly 130, which not only ensures the sealing and containment function of the jar 110 for the spices, but also provides a physical channel for the transmission of magnetic force inside and outside the jar 110.

[0066] It should be noted that "projections at least partially overlap" can be understood as the surface of the magnetically permeable region 119 being the projection surface, onto which the contours formed by projecting the magnetic drive component 120 and the magnetic stirring component 130 along directions perpendicular to the magnetically permeable region 119 are projected. Since the transmission of magnetic force is directional, the projections of the two components at least partially overlap, meaning there is an intersection region at corresponding positions in the magnetically permeable region 119. Within this intersection region, the magnetic field generated by the magnetic drive component 120 can penetrate the magnetically permeable region 119 more concentratedly, forming an effective coupling with the magnetic stirring component 130.

[0067] Understandably, the larger the overlapping area, the higher the interaction efficiency of the magnetic field, thus ensuring the effective transmission of the magnetic field, ensuring the reliability of non-contact transmission, and thereby achieving stable stirring of the spices.

[0068] The working principle of the spice stirring device 100 is as follows: after the magnetic drive component 120 is energized, it generates a rotating magnetic field. The magnetic field passes through the magnetically permeable area 119 of the tank 110 and acts on the magnetic stirring component 130 in the receiving cavity 111. Since the two are in a magnetically interactive relative position, the magnetic stirring component 130 rotates under the magnetic force of the rotating magnetic field, thereby stirring the spices in the receiving cavity 111 and ensuring that the spice liquid is fully and evenly mixed.

[0069] It should be noted that the location of the magnetic drive component 120 is not limited. For example, the magnetic drive component 120 can be located at the bottom of the container 110. In this way, gravity can be used to allow the spices to naturally gather at the bottom of the container 110, and the magnetic stirring component 130 can act more directly on the spice gathering area, thereby improving stirring efficiency.

[0070] Therefore, this embodiment of the application sets up a magnetic permeable zone 119 to achieve non-contact transmission between the magnetic drive component 120 and the magnetic stirring component 130. There is no need for a physical shaft to pass through the tank 110, which effectively improves the sealing performance and ensures that the spices are not contaminated and there is no leakage loss during the stirring process. Furthermore, the projection overlap design ensures the stability and transmission efficiency of the magnetic coupling, making the stirring more uniform and efficient.

[0071] In one embodiment, reference Figure 2 , Figure 4 and Figure 6 As shown, the magnetic drive assembly 120 may include a drive motor 121 and a first magnet group 122, the drive motor 121 having a rotor 1211 (e.g., Figure 6 The first magnet assembly 122 is embedded in the rotor 1211 and rotates synchronously with the rotor 1211.

[0072] Reference Figure 6 As shown, the first magnet group 122 includes multiple pairs of first permanent magnets 1221, which are arranged at intervals along the circumference of the rotor 1211, with the magnetic poles of adjacent first permanent magnets 1221 alternating in an N-S pattern. When the first magnet group 122 rotates synchronously with the rotor 1211, it forms a magnetic coupling with the magnetic stirring assembly 130.

[0073] It should be noted that the arrangement of the magnetic poles of the first permanent magnet 1221 can be as follows: Figure 6 The N and S poles are arranged alternately along the circumference of the rotor 1211 in an N1-S1-N1-S1 pattern. This alternating arrangement creates a continuously changing rotating magnetic field outside the magnetic permeable region 119 as the rotor 1211 rotates. Specifically, as the rotor 1211 rotates, the spatial positions of the N and S poles constantly alternate, generating a periodically changing magnetic force.

[0074] In some embodiments, to improve the assembly stability of the drive motor 121, refer to Figure 2 and Figure 4 As shown, a motor support leg 123 and a fixing frame 124 are also provided below the tank body 110, and a drive motor 121 is installed thereon; in some embodiments, a motor housing 125 is placed on the fixing frame 124, and the drive motor 121 is installed in the motor housing 125.

[0075] In some embodiments, the speed range of the drive motor can be extended to 200-300 rpm to adapt to the needs of fragrance liquids of different viscosities, form a strong vortex to accelerate mixing, and at the same time reduce the temperature rise interference caused by mechanical friction.

[0076] In one embodiment, reference Figure 4 and Figure 7As shown, the magnetic stirring assembly 130 may include a stirring paddle 131 and a second magnet assembly 132, with the second magnet assembly 132 embedded in the stirring paddle 131. The integrated structure of the stirring paddle 131 and the second magnet assembly 132 reduces the risk of component loosening and improves stirring stability.

[0077] like Figure 4 The second magnet group 132 includes multiple pairs of second permanent magnets 1321, which are arranged at intervals along the circumference of the stirring paddle 131. The magnetic poles of adjacent second permanent magnets 1321 are arranged alternately in a ns pattern. The magnetic poles of each second permanent magnet 1321 are opposite to the magnetic poles of the first permanent magnet 1221 and are configured to rotate under the drive of the drive motor 121.

[0078] It should be noted that the arrangement of the magnetic poles of the second permanent magnet 1321 can be as follows: Figure 7 The magnets are arranged circumferentially along the stirring paddle 131 in a pattern of n1-s1-n1-s2. This arrangement forms a magnetic field distribution corresponding to the first magnet group 122, providing a structural basis for the magnetic coupling between the two.

[0079] The corresponding logic of the first permanent magnet 1221 and the second permanent magnet 1321 is as follows: In the initial state, the external N1 pole is opposite to the internal S1 pole, and the adjacent external S1 pole is opposite to the internal N1 pole, forming a stable magnetic coupling. When the externally driven rotor 1211 rotates, the N1 pole leaves its original position, and the adjacent S1 pole moves to the original N1 pole position. At this time, the internal magnetic pole will rotate due to the magnetic force (the original S1 pole is repelled by the S1 pole and attracted by the newly moved N2 pole), thus achieving synchronous rotation.

[0080] In some embodiments, such as Figure 7 The stirring paddle 131 can be a petal-shaped magnetic stir bar, and the blades can be set to six, eight, or other blades according to actual needs. This enhances the eddy current effect by optimizing the magnetic field distribution. Compared with the traditional cylindrical stir bar, the mixing efficiency is increased by more than 30%, and the stratification and sedimentation can be quickly eliminated.

[0081] The blades can be tilted at an angle of 30°, with rounded ends to create vortex mixing through rotation. This helps optimize the magnetic field distribution to enhance the vortex effect, improving mixing efficiency compared to traditional cylindrical stir bar. It can quickly eliminate spice stratification and sedimentation, achieving more efficient and uniform mixing.

[0082] Therefore, under this dynamic magnetic force, the second magnet group 132 drives the stirring paddle 131 to rotate synchronously with the first magnet group 122, thereby agitating the spices through the blades of the stirring paddle 131 to achieve uniform mixing. Moreover, the corresponding arrangement of the magnetic poles increases the magnetic coupling strength and ensures transmission efficiency.

[0083] In one embodiment, reference Figure 8 As shown, the shortest distance d between the N pole of the first permanent magnet 1221 and the S pole of the second permanent magnet 1321 is between 3 and 8 mm. It should be noted that the "shortest distance" here refers to the straight-line distance between the two along the direction perpendicular to the magnetic permeable region 119.

[0084] For example, the shortest distance d between the N pole of the first permanent magnet 1221 and the S pole of the second permanent magnet 1321 can be 3mm, 4mm, 5mm, 6mm, 7mm, 8mm or any value between 3 and 8mm.

[0085] If d is less than 3mm, although it can enhance the magnetic coupling strength, it may lead to mechanical interference between magnets due to thickness errors or assembly deviations in the magnetic permeable zone 119 of the tank 110. Furthermore, excessive magnetic force can easily cause excessive load on the drive motor 121. If d is greater than 8mm, it may result in insufficient magnetic coupling strength. Therefore, a spacing of 3-8mm ensures sufficient installation space for the material thickness of the magnetic permeable zone 119 and keeps the attractive and repulsive forces between the magnetic poles within a stable and effective range, providing a reliable force transmission basis for the dynamic magnetic coupling between the two.

[0086] Furthermore, the shortest distance d between the S pole of the first permanent magnet 1221 and the N pole of the second permanent magnet 1321 can be between 3 and 8 mm. This embodiment does not limit this distance.

[0087] In one embodiment, reference Figure 4 As shown, it may also include a temperature control component 140 and a controller, the temperature control component 140 and the controller being electrically connected; the temperature control component 140 is disposed in the tank 110 and is configured to detect the temperature inside the tank 110 and send a temperature signal to the controller; the controller is configured to receive the temperature signal and control the heating power of the temperature control component 140 so that the internal temperature of the tank 110 is maintained within a set range.

[0088] Understandably, the temperature control component 140 has a dual function: firstly, it acts as a temperature detection unit, which monitors the temperature inside the containment cavity 111 in real time through a built-in temperature sensor, converts the physical quantity of temperature into an electrical signal, and transmits it to the controller; secondly, it acts as a heating execution unit, which can adjust its own heating power according to the controller's instructions to achieve heating or heat preservation inside the tank 110.

[0089] As the core control unit, the controller pre-stores temperature range parameters set for different spices. When the device is running, the controller continuously receives temperature signals sent by the temperature control component 140 and compares them with the preset temperature range. If the actual temperature is detected to be lower than the set lower limit, the controller sends a command to the temperature control component 140 to increase the heating power, so that the temperature control component 140 outputs more energy. If the actual temperature is higher than the set upper limit, the controller commands the temperature control component 140 to reduce the heating power or stop heating to avoid the temperature from being too high and affecting the quality of the spices.

[0090] In one embodiment, reference Figure 4 As shown, the temperature control assembly 140 may include a temperature sensor 141 and a heating element 142; the temperature sensor 141 detects the temperature of the spices in the receiving cavity 111; the heating element 142 is disposed around the outer wall of the container 110 and is configured to adjust the heating power from the outside according to the temperature signal; or, the heating element 142 is disposed around the inner wall of the container 110 and is configured to adjust the heating power from the inside according to the temperature signal.

[0091] The temperature sensor 141 can be a thermocouple sensor or an infrared temperature sensor, and this embodiment does not limit it.

[0092] The heating element 142 can be a ring-shaped heating band, which is arranged around the outer wall of the container 110, such as a silicone heating band or a mica heating band. Heating from the outside can avoid direct contact with the fragrance inside the container cavity 111, reducing the risk of contamination. Alternatively, the heating element 142 can be an electromagnetic heating wire, which is arranged on the inner wall of the container 110. It can directly transfer heat to the fragrance with low heat loss and fast heating speed.

[0093] In some embodiments, a sandwich layer may be provided between the inner and outer walls of the tank 110, with an annular heating belt embedded in the sandwich layer, which, together with the temperature sensor 141, achieves uniform heating of the entire area.

[0094] In one embodiment, a protective component may also be included, disposed in the tank 110 and electrically connected to the controller. The protective component is configured to detect the liquid level of the fragrance and trigger a protective action when the liquid level falls below a set threshold.

[0095] The protective actions may include: controlling the magnetic drive component 120 to reduce its speed or stop operating to prevent the agitator 131 from running dry when the liquid level is too low; controlling the temperature control component 140 to stop heating; and triggering an audible and visual alarm device to remind the operator to replenish spices or check the equipment in a timely manner.

[0096] In one embodiment, reference Figure 4As shown, the protective assembly may include a liquid level detector 161 and a flame retardant releaser. The liquid level detector 161 is disposed in the receiving cavity 111 and configured to detect the liquid level of the fragrance; when the liquid level is lower than a set threshold, it sends a power-off signal to the controller. The flame retardant releaser is disposed on the top of the tank 110 and is configured to detect a combustion signal, send a power-off signal to the controller, and simultaneously release the flame retardant. The controller is configured to control the heating element 142 to de-energize upon receiving the power-off signal.

[0097] The liquid level detector 161 can adjust its position according to changes in the liquid level. When the spice liquid level is detected to drop below a preset threshold, the liquid level detector 161 will immediately send a power-off signal to the controller. This design continues the protection against the problem of excessively low liquid levels, ensuring that preliminary protection can be quickly triggered in the event of an abnormal liquid level.

[0098] The flame retardant release device is installed on the top of the tank 110. It is equipped with combustion signal detection elements such as temperature sensing probe and flame sensor. When a combustion signal is detected, the flame retardant release device will perform two operations simultaneously: first, send a power-off signal to the controller, and second, immediately activate the internal release mechanism to release the flame retardant into the containment cavity 111.

[0099] Understandably, flame retardant releasers are generally linked to smoke sensors. When the smoke sensor detects a combustion signal, the flame retardant releaser releases an insulating flame retardant to extinguish the fire quickly.

[0100] In one embodiment, reference Figures 1 to 3 As shown, the top of the tank 110 may be provided with a vent 112 and an observation window 113. The vent 112 can balance the internal and external air pressure to avoid abnormal pressure inside the tank when stirring or heating, and the observation window 113 facilitates real-time monitoring of the spice stirring status.

[0101] In some embodiments, a drain valve may be provided at the bottom of the tank 110, which is configured to open after cleaning the inside of the tank 110. This allows for the rapid discharge of cleaning wastewater, preventing residual water from contaminating the fragrances being stirred subsequently and improving the cleaning efficiency of the equipment. In some embodiments, a rinsing nozzle and a water supply pipe may be integrated at the top of the tank 110.

[0102] In some embodiments, refer to Figure 2 As shown, the outer wall of the tank 110 can be provided with a heat insulation layer 114. The tank 110 can be made of seamless integrated stainless steel material, and the outer wall is wrapped with rock wool insulation layer 114 to reduce heat exchange between the inside and outside of the tank 110, reduce the energy consumption of the temperature control component 140, and at the same time maintain the stable temperature inside the tank to ensure that the spices are stirred at a suitable temperature.

[0103] In some embodiments, refer to Figure 1 and Figure 2As shown, the bottom of the tank 110 can be fixed to the bracket 116 by four sets of height-adjustable support legs 115, adapting to the needs of workshop movement and positioning. In some embodiments, refer to... Figure 2 and Figure 3 As shown, a return tank 117 and an identifier 118 can be installed on the top of the tank 110. When spices overflow, the return tank 117 can collect the returned spices to avoid spice waste. The identifier 118 can realize intelligent management of spice materials, operating procedures and equipment status through radio frequency identification technology.

[0104] In some embodiments, refer to Figure 2 As shown, a control box 151 can be installed on the outer wall of the tank 110, and a control panel 152, a display screen 153 and buttons 154 can be integrated to support the setting of speed and temperature parameters and the display of fault alarms.

[0105] Secondly, embodiments of this application provide a control method, including:

[0106] Detect the liquid level of the fragrance in the containing cavity and control the liquid level to a set threshold.

[0107] Liquid level can be detected using a liquid level sensor.

[0108] Enter the parameter setting interface and input the process parameters;

[0109] For example, the process parameters can be: target temperature, stirring speed, running time, safety threshold, lower limit of liquid level, and temperature over-limit threshold.

[0110] The magnetic drive component and the magnetic stirring component are connected by magnetic coupling to achieve non-contact transmission, and the magnetic stirring component is driven to rotate, which stirs the spices in the container cavity.

[0111] The temperature of the spices inside the cavity is detected, the heating power is dynamically adjusted in conjunction with the heating element, and a temperature signal is sent to the controller.

[0112] When the liquid level is lower than the set threshold, a power-off signal is sent to the controller, which then controls the heating element to cut off the power and simultaneously controls the magnetic drive component to reduce its speed to a safe speed.

[0113] The operation process of the stirring device provided in this embodiment is as follows:

[0114] The operator presses the power button 154 on the control panel 152, and the display screen 153 enters the initialization interface. The system executes a self-test procedure: the liquid level sensor in the receiving cavity 111 automatically starts working, detecting the initial liquid level of the fragrance in real time. If the fragrance level does not reach the set threshold, for example, if the set threshold is 30%, the device will remind the operator to add fragrance through audible and visual prompts. The temperature sensor 141 is calibrated to zero, with an error range of less than 0.1℃. An abnormality will prompt a sensor malfunction. The drive motor 121 runs unloaded for 3 seconds to detect speed fluctuations. When the self-test passes, the display screen 153 displays the "Ready" status and enters the parameter setting interface.

[0115] Input various process parameters via the touchscreen: set the target temperature, stirring speed and running time; set safety thresholds, such as the maximum allowable speed of the stirring paddle 131; set the liquid level lower limit, which is the lowest liquid level that triggers protection; and set an alarm when the temperature exceeds the threshold, such as when it is higher than the target temperature. The system will automatically save the parameters after they are set.

[0116] Next, magnetic coupling calibration is performed. The drive motor first starts at low speed, and the rotating magnetic field it generates passes through the magnetic permeable zone 119, driving the stirring paddle 131 to rotate synchronously through the magnetic field lines 126, forming magnetic coupling with the magnetic stirring assembly 130, driving the stirring paddle 131 to rotate at the set speed to stir and mix the spices. In addition, the display screen 153 displays the speed matching degree between the drive motor 121 and the stirring paddle 131 in real time. If the deviation is >5rpm, the output torque is automatically adjusted. After calibration, the drive motor 121 runs at the set speed, and the magnet in the rotor 1211 drives the stirring paddle 131 to rotate through magnetic field coupling. The stirring paddle 131 generates the following actions: main vortex: the blade tilt angle of 30° vertically lifts the liquid from the bottom of the tank; secondary vortex: the rounded design at the end of the blade induces reverse rotation to eliminate the dead zone of sediment on the tank wall.

[0117] During the stirring process, temperature sensor 141 continuously monitors the real-time temperature of the spices in the container cavity 111 and transmits the temperature signal to the controller. The controller compares the actual temperature with the set target temperature: if the actual temperature is lower than the target temperature, the heating element 142 automatically increases the heating power; if the temperature exceeds the over-limit threshold, the controller immediately issues a warning and adjusts the heating power to prevent the temperature from continuing to rise. Additionally, during operation, the display screen 153 dynamically displays the current rotation speed, temperature, liquid level, and running time.

[0118] If the liquid level sensor detects that the spice liquid level is lower than the set lower limit, it sends a power-off signal to the controller. The controller immediately cuts off the power to the heating element 142 to prevent the tank 110 from overheating due to lack of heating medium. Simultaneously, it controls the magnetic drive component 120 to reduce the rotation speed to a safe speed.

[0119] When the running time reaches the set value, the control magnetic drive assembly 120 and the heating element 142 stop working, and the stirring paddle 131 gradually decelerates until it stops. At this time, the operator can check the stirring status of the spices through the observation window 113 and complete the subsequent discharge or cleaning operations.

[0120] It can be added that the formula for calculating the temperature deviation of temperature sensor 141 is:

[0121] Temperature sensor 141 monitors the temperature in real time, acquiring the temperature of the fragrance liquid every 0.1 seconds. The temperature signal is transmitted to control box 151 via shielded cable. Temperature deviation is calculated. .

[0122] For example, if the set temperature is 60℃ and the actual measured temperature is 58℃, then ΔT = -2℃.

[0123] The controller's temperature control algorithm logic:

[0124]

[0125] in,

[0126] .

[0127] Therefore, this application achieves precise control of the tobacco flavoring stirring process through closed-loop temperature control and magnetic non-contact transmission technology: the temperature sensor 141 captures the temperature of the flavoring liquid in real time, and dynamically adjusts the output power in conjunction with the annular heating belt set around the tank 110. The temperature difference is continuously corrected through the algorithm, so that the temperature control accuracy is stabilized at ±0.5℃, effectively avoiding the temperature fluctuation (such as excessive temperature drop) and loss of volatile flavoring components caused by poor sealing in traditional pneumatic stirring, and ensuring the stability of the active ingredients of the flavoring.

[0128] The eight-petal-shaped stir bar is driven by a high-performance motor through magnetic coupling, and the speed can be adjusted within the range of 200-3000 rpm. Its special petal structure and blade angle design can enhance the vortex effect, which improves the mixing efficiency by 40% compared with traditional mechanical stirring, and the uniformity of flavor mixing is as high as 98%, meeting the stringent requirements for flavor ratio precision in tobacco processing.

[0129] The safety protection system adopts a multi-level interlock design: when the flavor liquid level is detected to be below 30%, the system automatically cuts off the heating and drive power to prevent the stirrer from running dry and causing wear, and the tank from burning dry at 110°C; if a smoke signal is detected, the flame retardant is immediately released to extinguish the fire quickly; and the magnetic non-contact transmission method eliminates the leakage risk caused by the mechanical shaft seal, avoiding flavor contamination and equipment corrosion from the source. The multiple protections work together to comprehensively ensure the continuity, stability and production safety of the tobacco processing process.

[0130] 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.

[0131] 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 spice whisking device characterized by, The application relates to a magnetic drive device for a fragrance container. The device comprises: a container body having a receiving cavity; a magnetic drive assembly arranged outside the receiving cavity, at least part of the area opposite to the magnetic drive assembly of the container body being a magnetic permeable area; a magnetic stirring assembly arranged in the receiving cavity and arranged opposite to the magnetic permeable area, the projection of the magnetic stirring assembly on the magnetic permeable area at least partially overlapping the projection of the magnetic drive assembly on the magnetic permeable area; 2. The spice whipper of claim 1, wherein, the magnetic drive assembly is configured to generate a rotating magnetic field and form a magnetic coupling with the magnetic stirring assembly through the magnetic permeable area to achieve non-contact transmission and drive the magnetic stirring assembly to rotate, and the magnetic stirring assembly is configured to stir the fragrance in the receiving cavity. The magnetic drive assembly comprises a drive motor having a rotor and a first magnet assembly embedded in the rotor and rotating synchronously with the rotor; the first magnet assembly comprises a plurality of pairs of first permanent magnets, the pairs of first permanent magnets being arranged along the circumference of the rotor, and the magnetic poles of adjacent first permanent magnets being arranged in an N-S alternating manner; 3. The flavor whip apparatus of claim 2, wherein, the first magnet assembly rotates synchronously with the rotor and forms a magnetic coupling with the magnetic stirring assembly. The magnetic stirring assembly comprises a stirring paddle and a second magnet assembly embedded in the stirring paddle; the second magnet assembly comprises a plurality of pairs of second permanent magnets, the pairs of second permanent magnets being arranged along the circumference of the stirring paddle, and the magnetic poles of adjacent second permanent magnets being arranged in an N-S alternating manner; 4. The flavor whip apparatus of claim 3, wherein, the magnetic poles of each second permanent magnet are arranged opposite to the magnetic poles of the first permanent magnets having opposite polarity, and are configured to rotate under the drive of the drive motor.

5. A flavour stirrer according to any one of claims 1 to 4, characterised in that the shortest distance between the N pole of the first permanent magnet and the S pole of the second permanent magnet is 3-8 mm; and / or, the shortest distance between the S pole of the first permanent magnet and the N pole of the second permanent magnet is 3-8 mm. The device further comprises a temperature control assembly and a controller, and the temperature control assembly and the controller are electrically connected; 6. The flavor agitator of claim 5, wherein, the temperature control assembly is arranged in the container body and is configured to detect the temperature inside the container body and send a temperature signal to the controller, and the controller is configured to control the heating power of the temperature control assembly after receiving the temperature signal to maintain the internal temperature of the container body within a set range. The temperature control assembly comprises a temperature sensor and a heating element; the temperature sensor is configured to detect the temperature of the fragrance in the receiving cavity; 7. A flavour agitator according to claim 6, characterised in that the heating element is arranged around the outer wall of the container body and is configured to adjust the heating power from the outside according to the temperature signal; and / or, the heating element is arranged on the inner wall of the container body and is configured to adjust the heating power from the inside according to the temperature signal. The device further comprises a protection assembly arranged in the container body and electrically connected with the controller; 8. A flavour agitator according to claim 7, characterised in that the protection assembly is configured to detect the liquid level of the fragrance and trigger a protection action when the liquid level is below a set threshold. The protection assembly comprises a liquid level detector and a fire retardant releaser; the liquid level detector is arranged in the receiving cavity and is configured to detect the liquid level of the fragrance; and sends a power-off signal to the controller when the liquid level is below the set threshold. The flame retardant release device is located on the top of the can and is configured to send the power-off signal to the controller when a combustion signal is detected, and simultaneously release the flame retardant. The controller is configured to control the heating element to shut off power upon receiving the power failure signal.

9. A flavour stirrer according to any one of claims 1 to 4, characterised in that The top of the tank is provided with a vent and an observation window; and / or, the bottom of the tank is provided with a drain valve, which is configured to open after cleaning the inside of the tank; and / or, the outer wall of the tank is provided with a heat insulation layer.

10. A method of controlling a flavor agitator according to any one of claims 1-9, characterized by, include: A container is provided, the container having a receiving cavity, the liquid level of the fragrance in the receiving cavity is detected, and the liquid level is controlled to be at a set threshold. Enter the parameter setting interface and input the process parameters; The magnetic drive assembly and the magnetic stirring assembly are coupled magnetically to achieve non-contact transmission, and the magnetic stirring assembly is driven to rotate, thereby stirring the spices in the receiving cavity. The temperature of the spices inside the cavity is detected, the heating power is dynamically adjusted in conjunction with the heating element, and a temperature signal is sent to the controller. When the liquid level is lower than the set threshold, a power-off signal is sent to the controller, which controls the heating element to be powered off and simultaneously controls the magnetic drive assembly to reduce its speed to a safe speed.

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