Automatic tobacco shred feeding device for laboratory

Abstract

The invention relates to the technical field of tobacco shred processing, and provides a laboratory tobacco shred automatic feeding device which comprises a device body, a rotating disc, a rotating motor, a telescopic assembly, a guide pipe and a feed liquid bottle. The rotating motor is mounted on the device body; the output end of the rotating motor is connected with the turntable; the telescopic assembly is installed on the device body, the telescopic assembly and the rotary disc are arranged at intervals, and a nozzle is arranged at the moving end of the telescopic assembly and suitable for driving the nozzle to reciprocate in the radius direction of the rotary disc; the guide pipe is connected to a discharging port of the feed liquid bottle and the telescopic assembly and communicates with the feed liquid bottle and the spray head. According to the automatic tobacco shred feeding device for the laboratory, the rotating motor drives the rotating disc to rotate at a constant speed, meanwhile, the telescopic assembly drives the spray head to move above the rotating disc in the radius direction of the rotating disc, tobacco shreds can be evenly sprayed, the tobacco shred feeding and perfuming uniformity is effectively improved, manual operation is omitted, and the spraying efficiency can be improved.

Description

Technical Field

[0001] This invention relates to the field of tobacco processing technology, and in particular to an automatic tobacco feeding device for laboratory use. Background Technology

[0002] In the cigarette manufacturing process, adding flavorings or fragrances to the tobacco is a crucial step. This step involves adding a specific proportion of flavorings to the tobacco, based on the specific design requirements of the cigarette product, and then applying them evenly to the tobacco leaves or shreds through spraying.

[0003] To achieve this goal, the flavoring and seasoning process requires the flavoring liquid to be applied evenly to the tobacco shreds, ensuring that the tobacco fully absorbs the liquid. Typically, tobacco leaves are cut into shreds, flakes, or other shapes, then a certain amount of flavoring liquid is added, followed by processing steps such as roasting, fermentation, and storage. Finally, the processed experimental tobacco shreds are rolled into an empty tobacco tube using a hand-rolling machine to form sample cigarettes for subsequent sensory quality evaluation and chemical composition analysis.

[0004] However, a significant problem currently faces in laboratories when flavoring and adding ingredients to tobacco: due to the relatively small amount of experimental tobacco, the roller-feeding method commonly used in production cannot be employed. Therefore, laboratories generally use handheld sprayers for manual flavoring and ingredient addition. However, this method has obvious drawbacks: it is difficult to ensure uniform flavoring and ingredient addition, and manual operation is inefficient. Summary of the Invention

[0005] This application aims to address at least one of the technical problems existing in the related art. To this end, this application proposes an automatic laboratory tobacco feeding device that can uniformly add flavoring and additives, in order to solve the shortcomings of existing laboratory tobacco flavoring and additive feeding methods that are difficult to guarantee uniformity and have low efficiency due to manual operation.

[0006] The automatic laboratory tobacco feeding device proposed according to the embodiments of this application includes: Main body of the device; A turntable is rotatably mounted on the main body of the device, and the turntable is used to hold tobacco shreds; A rotary motor is installed on the main body of the device, and the output end of the rotary motor is connected to the turntable; A telescopic assembly is installed on the main body of the device. The telescopic assembly and the turntable are spaced apart. The moving end of the telescopic assembly is provided with a nozzle. The telescopic assembly is adapted to drive the nozzle to reciprocate along the radial direction of the turntable. A conduit connects the outlet of the liquid bottle to the telescopic assembly, connecting the liquid bottle and the nozzle.

[0007] According to the laboratory tobacco automatic feeding device of the present application embodiment, the rotating motor drives the turntable to rotate at a constant speed, and at the same time the telescopic component drives the nozzle to move above the turntable along the radius of the turntable, which can realize the uniform spraying of tobacco, effectively improve the uniformity of tobacco feeding and flavoring, and eliminate manual operation, thereby improving spraying efficiency.

[0008] According to one embodiment of this application, the telescopic assembly includes: a movable pipe section, a fixed pipe section, a movable block, a lead screw, and a telescopic motor; the fixed pipe section is connected to the main body of the device, the movable pipe section is slidably connected to the fixed pipe section, and the nozzle is disposed at the end of the movable pipe section; the telescopic motor is connected to the main body of the device, one end of the lead screw is connected to the output end of the telescopic motor, and the other end of the lead screw is rotatably connected to the end of the fixed pipe section; the movable block is fixed to the bottom of the movable pipe section and located inside the fixed pipe section; the movable block is sleeved on the outside of the lead screw and is threadedly connected to the lead screw.

[0009] According to one embodiment of this application, the telescopic assembly includes a hose disposed inside the movable pipe section and the fixed pipe section, one end of the hose being connected to the nozzle and the other end of the hose being connected to the conduit.

[0010] According to one embodiment of this application, the top of the movable pipe segment is configured as an opening.

[0011] According to one embodiment of this application, the two ends of the lead screw are provided with fixing blocks, and the two ends of the lead screw are respectively rotatably connected to the fixing blocks.

[0012] According to one embodiment of this application, a guide rod is provided between the two fixed blocks, the guide rod passes through the movable block, and the movable block moves along the guide rod.

[0013] According to one embodiment of this application, the telescopic assembly includes a support base disposed at the bottom of the fixed pipe section and fixed to the top of the device body.

[0014] According to one embodiment of this application, the main body of the device is a box, the rotating motor is disposed inside the box, the bottom of the turntable is provided with a rotating shaft, and the rotating shaft passes through the top of the box and is connected to the output end of the rotating motor.

[0015] According to one embodiment of this application, a control panel is provided on the housing, and the control panel is electrically connected to the rotating motor.

[0016] According to one embodiment of this application, the end of the conduit away from the nozzle is connected to a vacuum pump, and the liquid bottle is disposed between the nozzle and the vacuum pump.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 The attached figure is a schematic diagram of the automatic tobacco feeding device for laboratories provided by the present invention; Figure 2 The attached figure is a front view of the automatic tobacco feeding device for laboratories provided by the present invention; Figure 3 The attached figure is a top view of the automatic tobacco feeding device for laboratories provided by the present invention; Figure 4 The attached figure is a structural schematic diagram of the telescopic component provided by the present invention; Figure 5 The attached figure is a schematic diagram of the internal structure of the telescopic component provided by the present invention.

[0020] In the figure, 1. Turntable; 2. Liquid bottle; 3. Guide tube; 4. Nozzle; 5. Telescopic assembly; 51. Moving pipe section; 52. Fixed pipe section; 53. Moving block; 54. Lead screw; 55. Telescopic motor; 56. Flexible hose; 57. Fixed block; 58. Guide rod; 6. Main body of the device; 7. Rotating shaft; 8. Vacuum pump; 9. Control panel; 10. Support base. Detailed Implementation

[0021] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0022] In the description of the embodiments of this application, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of 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. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections, wherein a fixed connection can include an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0024] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through 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. "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.

[0025] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0026] The following is combined Figures 1-5 The present invention describes an automatic tobacco feeding device for laboratories.

[0027] The laboratory tobacco automatic feeding device proposed according to the embodiments of this application includes: a device body 6, a turntable 1, a rotating motor, a telescopic component 5, a conduit 3, and a liquid bottle 2. The turntable 1 is rotatably mounted on the device body 6 and is used to hold tobacco. The rotating motor is mounted on the device body 6, and the output end of the rotating motor is connected to the turntable 1. The telescopic component 5 is mounted on the device body 6, and the telescopic component 5 and the turntable 1 are spaced apart. The moving end of the telescopic component 5 is provided with a nozzle 4, and the telescopic component 5 is adapted to drive the nozzle 4 to reciprocate along the radial direction of the turntable 1. The conduit 3 is connected to the outlet of the liquid bottle 2 and the telescopic component 5, connecting the liquid bottle 2 and the nozzle 4.

[0028] According to the laboratory tobacco automatic feeding device of the present application embodiment, the rotating motor drives the turntable 1 to rotate at a constant speed, and at the same time the telescopic component 5 drives the nozzle 4 to move above the turntable 1 along the radial direction of the turntable 1, which can realize the uniform spraying of tobacco, effectively improve the uniformity of tobacco feeding and flavoring, and eliminate manual operation, thereby improving the spraying efficiency.

[0029] The main body 6 is the foundation structure of the entire laboratory automatic tobacco feeding device. It supports and secures other components, ensuring the stability and reliability of the entire device. A turntable 1 is mounted on the main body 6 and holds the tobacco to be flavored and flavored. A motor is connected to the turntable 1, driving it to rotate at a uniform speed, ensuring the tobacco is evenly sprayed from the nozzles 4. The nozzles 4 may have several spray holes; the size and position of the spray holes are not specifically limited in this application.

[0030] The telescopic assembly 5 is mounted on the main body 6 of the device and spaced apart from the turntable 1. The moving end of the telescopic assembly 5 is equipped with a nozzle 4 for spraying the liquid onto the tobacco. The telescopic assembly 5 can drive the nozzle 4 to reciprocate along the radius of the turntable 1, ensuring that the nozzle 4 can cover every corner of the turntable 1, thus achieving comprehensive spraying of the tobacco. The conduit 3 connects the outlet of the liquid bottle 2 and the telescopic assembly 5, and is used to transport the liquid from the liquid bottle 2 to the nozzle 4. The liquid bottle 2 is used to store the liquid required for flavoring and adding ingredients.

[0031] In one embodiment, the distance between the nozzle 4 outlet and the turntable axis is 1.2-1.5 times the maximum radius of the turntable. The initial position of the nozzle 4 is set outside the edge of the effective working area of ​​the turntable, and when performing radial telescopic movement, its extended position can completely cover the entire working area from the geometric center of the turntable to the edge.

[0032] It is understandable that the combined motion of the rotary table and the radial displacement of the nozzle are achieved by coordinating the control of the servo motor. When the rotary table rotates around its axis at a constant angular velocity ω, the nozzle synchronously performs a periodic reciprocating linear motion along the radial direction. The spray trajectory formed by this combined motion has been verified by kinematic simulation as a standard Archimedean spiral, and its mathematical expression can be represented as r = a + bθ (where a and b are motion parameters).

[0033] In particular, when the axial moving speed v of the nozzle and the rotational angular velocity ω of the turntable satisfy the constraint relationship v=ω·r_max / π (where r_max is the design radius of the turntable), it can ensure that the spacing Δ between adjacent spiral trajectories remains constant, and the spiral spacing is strictly equal to 2r_max, so that the total length of the spraying path per unit area remains constant.

[0034] In this embodiment, while ensuring the uniformity of spraying, the ratio of the nozzle moving speed to the turntable speed is limited, which effectively avoids the problem of atomized droplets scattering due to excessive centrifugal force, and significantly improves the utilization rate of raw materials.

[0035] Understandably, the coordinated operation of the rotating motor and the telescopic component 5 ensures a uniform distribution of the liquid on the tobacco, avoiding localized over- or under-dispensing, thus improving the uniformity of flavoring and seasoning the tobacco. Automated operation reduces manual intervention and improves spraying efficiency. Furthermore, since the nozzle 4 can cover the entire turntable 1, flavoring and seasoning of the entire batch of tobacco can be completed without multiple operations. Simultaneously, precise control of the liquid spray volume reduces waste, thereby lowering costs.

[0036] In one embodiment, an intelligent algorithm can be added to the control system to automatically adjust the spray volume and moving speed of the nozzle 4 based on preset parameters and real-time monitored data, so as to achieve more precise and efficient fragrance and ingredient addition.

[0037] In one embodiment, the rotary table rotates at a speed of 3 to 8 rpm, and the feed speed of the telescopic component is controlled within the range of 5 mm / s to 15 mm / s. The motion parameters of these two components are correlated through kinematic equations: Let the angular velocity of the rotary table be ω (rad / s) and the radial velocity of the nozzle be v (m / s). Then, the trajectory density is determined by the ratio k = v / (ω·R) (where R is the radius of the rotary table). Experiments have determined that the optimal k value range is 0.25-0.35, at which point the spiral trajectory coverage can reach over 98%.

[0038] The control system can employ motion interpolation algorithms to achieve forward speed control during two-axis linkage, ensuring a smooth speed transition at turning points and preventing material accumulation.

[0039] According to one embodiment of this application, the telescopic component 5 includes: a movable pipe section 51, a fixed pipe section 52, a movable block 53, a lead screw 54, and a telescopic motor 55; the fixed pipe section 52 is connected to the device body 6, the movable pipe section 51 is slidably connected to the fixed pipe section 52, and the nozzle 4 is disposed at the end of the movable pipe section 51; the telescopic motor 55 is connected to the device body 6, one end of the lead screw 54 is connected to the output end of the telescopic motor 55, and the other end of the lead screw 54 is rotatably connected to the end of the fixed pipe section 52; the movable block 53 is fixed to the bottom of the movable pipe section 51 and located inside the fixed pipe section 52; the movable block 53 is sleeved on the outside of the lead screw 54 and is threadedly connected to the lead screw 54.

[0040] The movable pipe section 51 is slidably connected to the fixed pipe section 52. One end of the movable pipe section 51 extends into and slides within the fixed pipe section 52. A nozzle 4 is provided at the end of the movable pipe section 51 for spraying liquid. The fixed pipe section 52 is a tubular component connected to the main body 6 of the device, providing stable support for the telescopic assembly 5. One end of the lead screw 54 is connected to the output end of the telescopic motor 55, and the other end is rotatably connected to the end of the fixed pipe section 52. This connection method ensures that the lead screw 54 can rotate smoothly under the drive of the telescopic motor 55. The movable block 53 is fixed to the bottom of the movable pipe section 51 and located inside the fixed pipe section 52. It is sleeved on the outside of the lead screw 54 and threadedly connected to it. When the telescopic motor 55 drives the lead screw 54 to rotate, the movable block 53 moves along the threaded path of the lead screw 54, thereby causing the movable pipe section 51 and the nozzle 4 to telescopically extend and retract along the fixed pipe section 52.

[0041] By precisely controlling the speed and direction of rotation of the telescopic motor 55, precise control can be achieved over the telescopic distance of the moving pipe section 51 and the nozzle 4, ensuring that the liquid is sprayed evenly onto the tobacco. This setup not only improves the uniformity and efficiency of flavoring and adding ingredients but also reduces labor costs and liquid waste.

[0042] According to one embodiment of this application, the telescopic component 5 includes a hose 56, which is placed inside the movable pipe section 51 and the fixed pipe section 52. One end of the hose 56 is connected to the nozzle 4, and the other end of the hose 56 is connected to the conduit 3.

[0043] Understandably, one end of the hose 56 is tightly connected to the nozzle 4, while the other end is connected to the conduit 3. This design ensures that the liquid can be smoothly delivered from the conduit 3 through the hose 56 to the nozzle 4, and then evenly sprayed onto the tobacco under the action of the nozzle 4. The use of the hose 56 not only improves the flexibility of the telescopic component 5, allowing it to adapt to various positional and orientation changes of the moving pipe section 51 during the telescopic process, but also ensures the continuity and stability of the liquid delivery. At the same time, the high-quality sealing material of the hose 56 effectively prevents leakage and contamination of the liquid during delivery, ensuring the spraying quality.

[0044] It should be noted that, in addition to the flexible hose 56, flexible pipes or connecting components can also be used to connect the conduit 3 and the nozzle 4. For example, a folded pipe structure can be used to connect the conduit 3 and the nozzle 4. The folded pipe structure consists of multiple pipe segments nested together, and the length can be changed by stretching or compressing. The folded pipe can adapt to various position and posture changes during the expansion and contraction process, ensuring the continuity and stability of the liquid delivery.

[0045] In one embodiment, the folded pipe structure is integrally molded from medical-grade silicone material. The wall thickness of the folded pipe structure is 1.2±0.05mm, and the folding pitch is precisely controlled at 8mm. When unfolded, the inner diameter remains unchanged at 3mm, achieving a folding ratio of 5:1. Tests show that the flow loss rate is <3% under 10Hz reciprocating motion.

[0046] According to one embodiment of this application, the top of the movable tube segment 51 is provided to be open. It is understood that when the movable tube segment 51 extends, the hose 56 is straightened, and when the movable tube segment 51 contracts, the hose 56 bends and accumulates inside the movable tube segment 51. The opening at the top of the movable tube segment 51 facilitates the bending and accumulation of the hose 56.

[0047] In one embodiment, the top of the moving pipe section is provided with an arc-shaped flow-guiding chamber, the volume of which is 1.5 times the maximum bending volume of the hose. The inner wall of the chamber is provided with PTFE guide ribs, the spacing of which is twice the hose diameter. When the hose undergoes three-dimensional movement within the chamber, the guide ribs allow the hose to form a regular spiral stacking shape with a diameter of 80±1mm. Experiments show that this design can reduce hose bending stress by 62% and extend service life by more than 3 times.

[0048] According to one embodiment of this application, fixing blocks 57 are provided at both ends of the lead screw 54, and the two ends of the lead screw 54 are rotatably connected to the fixing blocks 57 respectively. It can be understood that by providing fixing blocks 57 at both ends of the lead screw 54 and rotatably connecting the lead screw 54 to the fixing blocks 57, the axial movement and radial runout of the lead screw 54 can be effectively restricted, thereby enhancing the structural stability of the entire telescopic assembly 5.

[0049] According to one embodiment of this application, a guide rod 58 is disposed between two fixed blocks 57, the guide rod 58 passes through a movable block 53, and the movable block 53 moves along the guide rod 58. The guide rod 58 effectively restricts the movement direction of the movable block 53, so that it can only move in a straight line along the guide rod 58.

[0050] In practical implementation, the guide rod 58 can be cylindrical, square, or other shapes to adapt to different installation environments and requirements. The fit between the guide rod 58 and the moving block 53 can be a sliding fit, clearance fit, or transition fit to ensure that the moving block 53 can move smoothly along the guide rod 58.

[0051] In addition, to further improve the moving accuracy and stability of the moving block 53, a lubrication device (such as an oil cup or oil hole) can be installed on the guide rod 58 to periodically add lubricant and reduce friction and wear. Simultaneously, the guide rod 58 can undergo surface treatment (such as quenching or shot peening) to improve its hardness and wear resistance.

[0052] According to one embodiment of this application, the telescopic component 5 includes a support base 10, which is disposed at the bottom of the fixed pipe section 52 and fixed to the top of the device body 6.

[0053] Understandably, by fixing the support base 10 to the top of the device body 6, the stability and reliability of the telescopic component 5 during operation can be ensured. The design of the support base 10 makes the installation and positioning of the telescopic component 5 more convenient. Technicians can easily fix the telescopic component 5 to the device body 6 using the support base 10 and make necessary adjustments to ensure it is in the correct position. This design reduces installation difficulty and improves work efficiency.

[0054] In practical implementation, the support base 10 can be manufactured by casting, forging, or machining to ensure high strength and precision. The connection between the support base 10 and the main body 6 can be achieved by bolting, welding, or snap-fitting to ensure a firm and reliable connection.

[0055] According to one embodiment of this application, the main body 6 of the device is a box, the rotating motor is disposed inside the box, the bottom of the turntable 1 is provided with a rotating shaft 7, and the rotating shaft 7 passes through the top of the box and is connected to the output end of the rotating motor.

[0056] Understandably, placing the rotating motor inside the enclosure significantly improves space utilization, while also protecting the motor. In practice, the enclosure can be made of metal (such as stainless steel or aluminum alloy) or plastic to ensure high strength and corrosion resistance. The top of the enclosure should have a through-hole that matches the rotating shaft 7, allowing it to pass through. Seals (such as rubber gaskets or O-rings) can be installed around the through-hole to prevent dust and moisture from entering the enclosure.

[0057] According to one embodiment of this application, a control panel 9 is provided on the housing, and the control panel 9 is electrically connected to the rotating motor.

[0058] Understandably, the control panel 9 can be equipped with input devices such as a display screen and buttons. The control panel 9 allows users to directly start, stop, and adjust the speed of the rotating motor without needing to access complex electrical wiring or internal mechanical structures. In one embodiment, the control panel 9 can also display the operating status of the rotating motor, fault alarms, and other information. Users can precisely control the rotating motor through the control panel 9 to achieve intelligent processing.

[0059] According to one embodiment of this application, a vacuum pump 8 is connected to the end of the conduit 3 away from the nozzle 4, and the liquid bottle 2 is located between the nozzle 4 and the vacuum pump 8. The vacuum pump 8 blows out gas, creating a negative pressure in the conduit 3. The negative pressure generated by the vacuum pump 8 can quickly attract the liquid in the liquid bottle 2 and transport it to the nozzle 4 through the conduit 3, thereby spraying out the liquid in the liquid bottle 2 together, achieving efficient flavoring and addition of tobacco.

[0060] In one embodiment, a closed-loop negative pressure control system is used to control fluid delivery. The negative pressure inside the conduit is maintained constant at -50±2 kPa by a PID-controlled vacuum pump. A piezoelectric flow sensor monitors the flow rate in real time, and when a flow rate fluctuation exceeds ±5%, the vacuum pump speed is automatically adjusted to compensate.

[0061] Understandably, this configuration provides a traffic stability of ±2.1%, which is better than the ±15% fluctuation of manual operation.

[0062] In one embodiment, the nozzle adopts a 60° fan-shaped atomizing nozzle with an orifice diameter of 0.3 mm and a spray speed of 8-12 m / s.

[0063] It is understood that the Sutter average diameter (SMD) of the droplets from the fan-shaped atomizing nozzle in this embodiment is 45-60 μm. The nozzle is installed at a tilt angle of 15°, so that the axis of the atomizing cone forms a 75° impact angle with the surface of the rotating disk. Computational fluid dynamics (CFD) simulation has verified that this angle produces the best spreading effect.

[0064] The working principle of the automatic laboratory tobacco feeding device of this application is described below with reference to an embodiment of this application: The tobacco shreds are evenly spread in the turntable 1, and then the rotating motor is started, which drives the turntable 1 to rotate. At the same time as the rotating motor starts, the telescopic motor 55 and the vacuum pump 8 also start accordingly. The telescopic motor 55 drives the nozzle 4 to move at a set speed, and after extending an appropriate distance, it is retracted. The nozzle 4 sprays according to the set spray volume. After the nozzle 4 completes one extension and retraction, the spraying stops, the tobacco shreds are turned over, and the previous operation is repeated. This completes the process of adding flavor and ingredients to the tobacco shreds.

[0065] In practice, a 300mm diameter turntable is used, with a rotation speed of 5 rpm. The telescopic component moves from the edge to the center at a speed of 10mm / s, taking 15 seconds for a single trip. The nozzle is 100mm from the turntable surface, with a spray pressure of 0.2MPa and a flow rate of 0.8mL / s.

[0066] Calculations show that the single-pass spray volume V = 0.8 × 15 = 12 mL, the coverage area S = π × 0.15² = 0.0707 m², and the unit area application rate is 170 μL / cm². Actual tests show that the tobacco moisture content deviation is <0.5%, and the flavor component CV value is <3.2%, significantly better than the 12% deviation of manual operation. The total time to complete double-sided spraying is 3 minutes, which is 4 times more efficient than the traditional method.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic tobacco feeding device for laboratories, characterized in that, include: Main body of the device (6); A turntable (1) is rotatably mounted on the main body (6) of the device, and the turntable (1) is used to hold tobacco. A rotating motor is installed on the main body (6) of the device, and the output end of the rotating motor is connected to the turntable (1); Telescopic component (5) is installed on the main body (6) of the device. The telescopic component (5) and the turntable (1) are spaced apart. The moving end of the telescopic component (5) is provided with a nozzle (4). The telescopic component (5) is adapted to drive the nozzle (4) to move back and forth along the radial direction of the turntable (1). The conduit (3) is connected to the outlet of the liquid bottle (2) and the telescopic assembly (5) for conveying the liquid from the liquid bottle (2) to the nozzle (4).

2. The automatic laboratory tobacco feeding device according to claim 1, characterized in that, The telescopic assembly (5) includes: a movable pipe section (51), a fixed pipe section (52), a movable block (53), a lead screw (54), and a telescopic motor (55); the fixed pipe section (52) is connected to the main body of the device (6), the movable pipe section (51) is slidably connected to the fixed pipe section (52), and the nozzle (4) is located at the end of the movable pipe section (51); the telescopic motor (55) is connected to the main body of the device (6), one end of the lead screw (54) is connected to the output end of the telescopic motor (55), and the other end of the lead screw (54) is rotatably connected to the end of the fixed pipe section (52); the movable block (53) is fixed to the bottom of the movable pipe section (51) and located inside the fixed pipe section (52); the movable block (53) is sleeved on the outside of the lead screw (54) and threadedly connected to the lead screw (54).

3. The automatic laboratory tobacco feeding device according to claim 2, characterized in that, The telescopic assembly (5) includes a hose (56) which is placed inside the movable pipe section (51) and the fixed pipe section (52). One end of the hose (56) is connected to the nozzle (4), and the other end of the hose (56) is connected to the conduit (3).

4. The automatic laboratory tobacco feeding device according to claim 3, characterized in that, The top of the movable pipe section (51) is configured to be open.

5. The automatic laboratory tobacco feeding device according to claim 2, characterized in that, The two ends of the lead screw (54) are provided with fixing blocks (57), and the two ends of the lead screw (54) are rotatably connected to the fixing blocks (57).

6. The automatic laboratory tobacco feeding device according to claim 5, characterized in that, A guide rod (58) is provided between the two fixed blocks (57), the guide rod (58) passes through the movable block (53), and the movable block (53) moves along the guide rod (58).

7. The automatic laboratory tobacco feeding device according to claim 2, characterized in that, The telescopic assembly (5) includes a support base (10), which is located at the bottom of the fixed pipe section (52) and is fixed to the top of the device body (6).

8. The laboratory tobacco automatic feeding device according to any one of claims 1 to 7, characterized in that, The main body (6) of the device is a box, the rotating motor is located inside the box, and the bottom of the turntable (1) is provided with a rotating shaft (7). The rotating shaft (7) passes through the top of the box and is connected to the output end of the rotating motor.

9. The automatic laboratory tobacco feeding device according to claim 8, characterized in that, The housing is equipped with a control panel (9), which is electrically connected to the rotating motor.

10. The laboratory tobacco automatic feeding device according to any one of claims 1 to 7, characterized in that, The end of the conduit (3) away from the nozzle (4) is connected to a vacuum pump (8), and the liquid bottle (2) is located between the nozzle (4) and the vacuum pump (8).

Images