A tobacco sample preparation mixing instrument and a tobacco mixing method

By designing a tobacco shred sample mixing instrument, a semi-automatic mixing of tobacco shreds is achieved using a servo motor drive and a tack structure. This solves the problems of low efficiency, poor uniformity, and contamination in existing technologies, and improves the efficiency and accuracy of re-dried tobacco sample preparation.

CN122141523APending Publication Date: 2026-06-05HONGYUN HONGHE TOBACCO (GRP) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HONGYUN HONGHE TOBACCO (GRP) CO LTD
Filing Date
2026-04-15
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing technologies suffer from low efficiency and poor uniformity in tobacco blending, rely heavily on manual experience, and are prone to sample contamination, failing to meet the demands for high efficiency, uniformity, and ease of operation in the field of re-dried tobacco sample preparation.

Method used

The instrument used for preparing and mixing tobacco shreds includes a mixing roller, a receiving box, a servo motor, and a control box. The servo motor drives the mixing roller to rotate. Combined with the design of the tack and the transparent acrylic material, it achieves semi-automatic mixing of tobacco shreds, ensuring uniformity and convenience.

Benefits of technology

It improves the efficiency of tobacco blending, ensures the uniformity of blending, reduces labor intensity, avoids sample contamination, provides a reliable sample basis, and enhances the accuracy for subsequent testing and optimization.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a tobacco sample preparation and mixing instrument and a tobacco mixing method. The tobacco sample preparation and mixing instrument comprises a mixing roller (1), a material receiving box (2), a servo motor (3), a control box (4) and a mounting plate (5). The mixing roller (1) is rotatably fixed on the mounting plate (5) through a support (6), and the mixing roller (1) has a plurality of side plates (11). The control box (4) is mounted on the mounting plate (5), the operation of the servo motor (3) is controlled through the control box (4), and then the rotating speed and direction of the mixing roller (1) are controlled. The side plates (11) are provided with pegs (111). The tobacco sample preparation and mixing instrument can realize semi-automatic mixing of different varieties and grades of tobacco, improves the mixing efficiency, guarantees the uniformity of the tobacco mixing, and solves the technical problems of low efficiency, poor uniformity, dependence on manual experience, high labor intensity and sample pollution in manual mixing of tobacco in the existing re-drying tobacco sample preparation.
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Description

Technical Field

[0001] This invention belongs to the field of cigarette production machinery technology, specifically relating to a tobacco shred sample preparation and mixing instrument and a tobacco shred mixing method. Background Technology

[0002] In the process of preparing samples of re-dried tobacco leaves, the blending of tobacco shreds is a crucial step when multiple grades of tobacco leaves are involved. As a fine and flexible filamentous material, tobacco shreds have a slightly rough surface and a certain degree of intertwining, which places high demands on the uniformity of the blending.

[0003] Currently, the blending of tobacco shreds in the re-drying tobacco sample preparation process mainly relies on manual repeated grabbing and stirring by process personnel. This traditional manual blending method has many drawbacks: on the one hand, manual operation is extremely inefficient and cannot meet the needs of large-scale and efficient sample preparation, especially when processing a large number of tobacco shred samples or multiple batches of blending tasks, where the shortcomings of manual blending become more prominent; on the other hand, the uniformity of manual blending is poor, and the blending effect depends entirely on the operational experience and craftsmanship of the process personnel. Differences in operation among different personnel and insufficient operational stability of the same person at different times can easily lead to uneven blending of tobacco shreds, which in turn affects the accuracy and consistency of subsequent tobacco sample preparation, and cannot provide a reliable sample basis for tobacco quality testing and process optimization.

[0004] Furthermore, during the manual blending process, workers need to directly handle the tobacco shreds, which can easily contaminate them and affect the purity of the samples. Additionally, the repetitive manual operation increases the labor intensity and costs for workers. Therefore, existing manual tobacco blending methods cannot meet the practical needs of the re-dried tobacco sample preparation field for blending efficiency, blending uniformity, and ease of operation. There is an urgent need for a tobacco blending device and method that can solve the aforementioned technical problems.

[0005] To address the above problems, this invention is proposed. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a tobacco shred preparation and blending instrument and method to achieve semi-automatic blending of tobacco shreds. This invention discloses a tobacco shred preparation and blending instrument and method. The instrument includes a blending roller 1, a receiving box 2, a servo motor 3, a control box 4, and a mounting plate 5. The blending roller 1 is rotatably fixed to the mounting plate 5 via a bracket 6 and has multiple side plates 11. The control box 4 is mounted on the mounting plate 5 and controls the operation of the servo motor 3, thereby controlling the rotational speed and direction of the blending roller 1. Nails 111 are installed on the side plates 11. This invention enables semi-automatic blending of tobacco shreds of different varieties and grades, improving blending efficiency while ensuring the uniformity of the blended tobacco. It solves the technical problems of low efficiency, poor uniformity, reliance on manual experience, high labor intensity, and easy sample contamination in existing re-dried tobacco leaf sample preparation methods.

[0007] This invention is achieved through the following technical solution:

[0008] The first aspect of the present invention provides a tobacco shred sample preparation and blending instrument, which includes a blending roller 1, a receiving box 2, a servo motor 3, a control box 4, a mounting plate 5, a bracket 6, and a transmission pulley 7;

[0009] The mixing roller 1 is rotatably fixed to the mounting plate 5 by the bracket 6. The mixing roller 1 includes a plurality of side plates 11. The receiving box 2 is placed on the mounting plate 5 and is located below the mixing roller 1.

[0010] The servo motor 3 is mounted on the mounting plate 5, and the output shaft of the servo motor 3 is connected to the mixing roller 1 through the transmission pulley 7. The servo motor 3 controls the rotation of the mixing roller 1.

[0011] The control box 4 is mounted on the mounting plate 5. The operation of the servo motor 3 is controlled by the control box 4, thereby controlling the speed and direction of the mixing drum 1.

[0012] A nail 111 is installed on the side plate 11, and the nail 111 extends toward the interior of the mixing roller 1;

[0013] At least one of the side panels 11 is a movable door 12, which can be opened to allow the tobacco to be placed or removed.

[0014] Preferably, the mixing roller 1 is in the shape of a polygonal prism.

[0015] Preferably, one side of the mixing roller 1 is movably connected to the bracket 6 via a rotating shaft 13, and the other side is connected to the transmission pulley 7 via a synchronous toothed belt 14.

[0016] Preferably, the mixing roller 1 is in the form of a decagonal prism, and the included angle between two adjacent sides of the decagonal prism is 144°, which can ensure that the tobacco and the tack are in full contact without being stuck by the included angle of the sides.

[0017] Preferably, the mixing roller 1 is made of transparent acrylic sheet, which makes it easy to observe the mixing effect of tobacco shreds.

[0018] Preferably, each of the side plates 11 has three nails 111, one end of which is a screw. The screw passes through the opening on the surface of the side plate 11 from inside the mixing roller 1 and is then fixed by a nut.

[0019] Preferably, one end of the movable door 12 is mounted on the mixing roller 1 via a hinge 121, and the other end is fixed to the roller with bolts via a fixing piece 122, thereby realizing the opening and closing relative to the mixing roller 1. One end of the movable door is connected to the roller via a hinge for easy opening and closing, and the other end can be fixed to close the door with bolts.

[0020] Preferably, the bottom of the mounting plate 5 is equipped with vibration damping pads 51 to reduce vibrations generated during instrument operation.

[0021] Preferably, the instrument is equipped with a power cord and can be plugged into a 220V power supply for use.

[0022] A second aspect of the present invention provides a method for blending tobacco shreds, using the tobacco shred sample preparation and blending instrument described in the first aspect of the present invention, comprising the following steps:

[0023] Step S1, Power connection: Connect the power cord of the tobacco sample preparation and mixing instrument to a 220V power supply to complete the instrument power supply;

[0024] Step S2, tobacco feeding: Open the movable door 12 of the mixing roller 1, put the tobacco to be mixed into the mixing roller 1, and close the movable door 12;

[0025] Step S3, parameter setting: Start the servo motor 3 through the control box 4, and set the appropriate rotation speed of the mixing roller 1 according to the moisture content and width of the tobacco shreds.

[0026] Step S4, mixing operation: The servo motor 3 is controlled by the control box 4 to drive the mixing roller 1 to rotate alternately in the forward and reverse directions in a timely manner, so that the tobacco shreds are fully in contact with and mixed with the tack nail 111 inside the mixing roller 1;

[0027] Step S5, Mixing and Retrieving: After the tobacco is mixed, turn off the servo motor 3, open the movable door 12, and rotate the movable door 12 to the lowest position so that the mixed tobacco is poured into the receiving box 2 below.

[0028] The tobacco shred sample preparation and mixing instrument of the present invention is not limited to the scenario of tobacco shred mixing, but can also be used for the mixing of other flexible shred or sheet materials.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] This invention provides a tobacco shred preparation and blending instrument capable of semi-automatic blending of different varieties and grades of tobacco shreds, improving blending efficiency while ensuring the uniformity of the blended shreds. The instrument uses a servo motor to drive the blending cylinder to rotate, allowing for adjustable rotation speed. Furthermore, the blending cylinder is equipped with a movable door for easy loading and unloading of tobacco shreds, and a receiving box is located at the bottom of the cylinder for convenient material collection. This invention addresses the technical problems of low efficiency, poor uniformity, reliance on manual experience, high labor intensity, and easy sample contamination in existing re-dried tobacco leaf sample preparation methods. Through the aforementioned device and method, the following beneficial effects are achieved:

[0031] 1. The tobacco shred preparation and blending instrument of the present invention achieves tobacco shred blending by automatically rotating the blending drum driven by a servo motor, replacing the traditional manual grabbing and stirring operation. It eliminates the need for repeated manual operation by process personnel, significantly improving the efficiency of tobacco shred blending. It is especially suitable for the blending needs of multiple batches and large quantities of tobacco shreds, while effectively reducing the labor intensity of process personnel and reducing labor cost input.

[0032] 2. The mixing drum of the tobacco sample mixing instrument of this invention has a stirring and dispersing effect on the tobacco. With the help of a servo motor driving the drum to rotate in both directions, it can ensure that tobacco of different grades and states can fully contact and mix, avoiding the problem of uneven mixing that occurs in manual mixing. At the same time, the mixing drum adopts a deca-prism design (144° included angle between adjacent sides), which can ensure that the tobacco and the mixing drum can fully contact each other without being stuck by the included angle, further improving the uniformity of mixing. This provides a reliable sample basis for subsequent tobacco quality testing and process optimization, and improves the accuracy and consistency of re-dried tobacco sample preparation.

[0033] 3. The tobacco sample mixing instrument of the present invention can flexibly set the rotation speed and direction of the mixing drum through the control box, and can adjust the mixing process according to parameters such as the moisture content and width of the tobacco. It does not rely on the manual experience of the process personnel, reducing the skill requirements of the operators. In addition, the movable door design facilitates the loading and unloading of tobacco, and the receiving box can realize the rapid collection of tobacco after mixing. The overall operation is convenient and efficient.

[0034] 4. The tobacco blending process is completed in a closed blending drum, eliminating the need for operators to directly contact the tobacco. This effectively avoids contamination of the tobacco samples caused by human contact, ensuring the purity of the tobacco samples and guaranteeing the accuracy of subsequent test results.

[0035] 5. The mixing roller of the tobacco sample mixing instrument of the present invention is made of transparent acrylic plate, which makes it easy for operators to observe the mixing effect of tobacco in real time and adjust the mixing parameters in a timely manner.

[0036] 6. The vibration damping pads at the bottom of the mounting plate of the tobacco sample preparation and blending instrument of the present invention can reduce vibration during instrument operation and improve the stability of the device operation.

[0037] 7. The tobacco sample preparation and mixing instrument of the present invention uses a screw and nut fixing method for the screws, and the movable door is installed with hinges, fixing plates and bolts, which facilitates disassembly, cleaning and maintenance in the later stage and extends the service life of the device.

[0038] 8. The mixing drum of the tobacco sample mixing instrument of the present invention is equipped with a movable door, which facilitates the loading and unloading of tobacco.

[0039] 9. The mixing drum of the tobacco shred sample mixing instrument of the present invention has a receiving box under it for easy receiving of materials.

[0040] 10. The tobacco shred sample preparation and blending instrument of this invention can be plugged into a 220V conventional power supply, without the need for special power supply equipment, and is suitable for the conventional working environment of re-dried tobacco leaf sample preparation; the blending parameters can be flexibly adjusted to adapt to the blending needs of tobacco shreds with different moisture contents and different widths, and is especially suitable for tobacco shred sample preparation and blending of multi-grade tobacco leaves, and has strong practicality and promotion value. Attached Figure Description

[0041] Figure 1 A schematic diagram of a tobacco sample preparation and mixing instrument;

[0042] Figure 2 This is a perspective view of the mixing drum structure.

[0043] The names of the reference numerals in the attached drawings are as follows: 1-mixing roller, 2-receiving box, 3-servo motor, 4-control box, 5-mounting plate, 6-bracket, 7-transmission pulley;

[0044] 11-Side panel, 12-Moving door, 13-Rotating shaft, 14-Synchronous toothed belt, 51-Vibration damping pad;

[0045] 111-Nail, 121-Hinge, 122-Fixing plate. Detailed Implementation

[0046] The present invention will now be described in further detail with reference to the embodiments.

[0047] Those skilled in the art will understand that the following embodiments are for illustrative purposes only and should not be construed as limiting the scope of the invention. Where specific techniques or conditions are not specified in the embodiments, they are performed in accordance with the techniques or conditions described in the literature in the field or according to the product instructions. Materials or equipment whose manufacturers are not specified are all conventional products that can be obtained by purchase.

[0048] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” to another element, it can be directly connected to the other element, or there may be an intermediate element. Furthermore, the term “connected” as used herein can include wireless connections.

[0049] In the description of this invention, unless otherwise stated, "a plurality of" means two or more. The terms "inner," "upper," "lower," etc., indicate the orientation or state relationship based on the orientation or state relationship shown in the drawings, and are only for the convenience of describing the invention 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 the invention.

[0050] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the meaning consistent with their meaning in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless defined as herein.

[0052] Example

[0053] like Figure 1-2The tobacco sample mixing instrument in this embodiment includes a mixing roller 1, a receiving box 2, a servo motor 3, a control box 4, a mounting plate 5, a bracket 6, and a transmission pulley 7.

[0054] The mixing roller 1 is rotatably fixed to the mounting plate 5 by the bracket 6. The mixing roller 1 includes a plurality of side plates 11. The receiving box 2 is placed on the mounting plate 5 and is located below the mixing roller 1.

[0055] The servo motor 3 is mounted on the mounting plate 5, and the output shaft of the servo motor 3 is connected to the mixing roller 1 through the transmission pulley 7. The servo motor 3 controls the rotation of the mixing roller 1.

[0056] The control box 4 is mounted on the mounting plate 5. The operation of the servo motor 3 is controlled by the control box 4, thereby controlling the speed and direction of the mixing drum 1.

[0057] A nail 111 is installed on the side plate 11, and the nail 111 extends toward the interior of the mixing roller 1;

[0058] One of the side panels 11 is a movable door 12, which can be opened to allow the tobacco to be placed or removed.

[0059] The mixing roller 1 is in the shape of a polygonal prism.

[0060] One side of the mixing roller 1 is movably connected to the bracket 6 via a rotating shaft 13, and the other side is connected to the transmission pulley 7 via a synchronous toothed belt 14.

[0061] The mixing roller 1 is in the form of a decagonal prism, and the included angle between two adjacent sides of the decagonal prism is 144°, which can ensure that the tobacco and the tack are in full contact without being stuck by the included angle of the sides.

[0062] The mixing roller 1 is made of transparent acrylic sheet, which makes it easy to observe the mixing effect of tobacco.

[0063] Each of the side plates 11 has three nails 111, one end of which is a screw. The screw passes through the opening on the surface of the side plate 11 from inside the mixing roller 1 and is then fixed by a nut.

[0064] One end of the movable door 12 is mounted on the mixing roller 1 via a hinge 121, and the other end is fixed to the roller with bolts via a fixing piece 122, thereby realizing the opening and closing of the door relative to the mixing roller 1.

[0065] The bottom of the mounting plate 5 is equipped with vibration damping pads 51 to reduce vibrations generated during instrument operation.

[0066] The instrument is equipped with a power cord and can be plugged into a 220V power supply for use.

[0067] The tobacco blending method in this embodiment uses the aforementioned tobacco sample preparation and blending instrument, and includes the following steps:

[0068] Step S1, Power connection: Connect the power cord of the tobacco sample preparation and mixing instrument to a 220V power supply to complete the instrument power supply;

[0069] Step S2, tobacco feeding: Open the movable door 12 of the mixing roller 1, put the tobacco to be mixed into the mixing roller 1, and close the movable door 12;

[0070] Step S3, parameter setting: Start the servo motor 3 through the control box 4, and set the appropriate rotation speed of the mixing roller 1 according to the moisture content and width of the tobacco shreds.

[0071] Step S4, mixing operation: The servo motor 3 is controlled by the control box 4 to drive the mixing roller 1 to rotate alternately in the forward and reverse directions in a timely manner, so that the tobacco shreds are fully in contact with and mixed with the tack nail 111 inside the mixing roller 1;

[0072] Step S5, Mixing and Retrieving: After the tobacco is mixed, turn off the servo motor 3, open the movable door 12, and rotate the movable door 12 to the lowest position so that the mixed tobacco is poured into the receiving box 2 below.

[0073] Specifically, during use, the tobacco to be mixed is placed into the mixing drum through the movable door of the mixing drum. The appropriate drum speed is set according to the moisture content and width of the tobacco, and the drum is rotated alternately in both directions for mixing as needed.

[0074] First, the device is equipped with a power cord and can be used by plugging it into a 220V power source. Figure 1 As shown, the tobacco to be blended is placed into the drum through the drum's movable door. The motor is started on the control box, and the drum speed is adjusted by the knob. The appropriate drum speed is set according to the moisture content and width of the tobacco, and the drum is rotated alternately in both directions for blending as needed.

[0075] like Figure 1 As shown, this tobacco sample mixing instrument uses a motor to drive a rotating drum via a toothed belt to mix the tobacco shreds inside the drum. After mixing, the movable door is opened and rotated to its lowest position to pour the mixed tobacco shreds into the receiving box. The bottom of the machine is also equipped with vibration-damping pads to reduce vibrations during operation.

[0076] like Figure 2As shown, the mixing roller is in the form of a decagonal prism, with an included angle of 144° between adjacent sides. This ensures that the tobacco and the mixing pins make full contact without being jammed by the side angles. The material is transparent acrylic sheet, allowing for easy observation of the tobacco mixing effect. One side can be opened to release and remove tobacco. Each side has three mixing pins on its inner side, each pin having a screw at one end that passes through a surface opening from the inside and is secured with a nut.

Claims

1. A tobacco shred sample preparation and mixing instrument, characterized in that, It includes a mixing roller (1), a receiving box (2), a servo motor (3), a control box (4), a mounting plate (5), a bracket (6), and a transmission pulley (7); The mixing roller (1) is rotatably fixed on the mounting plate (5) by the bracket (6), and the mixing roller (1) includes a plurality of side plates (11); the receiving box (2) is placed on the mounting plate (5) and located below the mixing roller (1); The servo motor (3) is mounted on the mounting plate (5), and the output shaft of the servo motor (3) is connected to the mixing roller (1) through the transmission pulley (7). The servo motor (3) controls the rotation of the mixing roller (1). The control box (4) is installed on the mounting plate (5). The operation of the servo motor (3) is controlled by the control box (4), thereby controlling the speed and direction of the mixing drum (1). A nail (111) is installed on the side plate (11), and the nail (111) extends toward the interior of the mixing roller (1); At least one of the side panels (11) is a movable door (12) that can be opened to allow the tobacco to be placed or removed.

2. The tobacco shred sample preparation and mixing instrument according to claim 1, characterized in that, The mixing roller (1) is a polygonal prism.

3. The tobacco shred sample preparation and mixing instrument according to claim 1, characterized in that, The mixing roller (1) is movably connected to the bracket (6) on one side via a rotating shaft (13), and connected to the transmission pulley (7) on the other side via a synchronous toothed belt (14).

4. The tobacco shred sample preparation and mixing instrument according to claim 1, characterized in that, The mixing roller (1) is in the form of a decagonal prism, and the included angle between two adjacent sides of the decagonal prism is 144°.

5. The tobacco shred sample preparation and mixing instrument according to claim 1, characterized in that, The mixing roller (1) is made of transparent acrylic sheet.

6. The tobacco shred sample preparation and mixing instrument according to claim 1, characterized in that, Each of the side plates (11) has 3 nails (111), one end of which is a screw. The screw passes through the opening on the surface of the side plate (11) from inside the mixing roller (1) and is fixed by a nut.

7. The tobacco shred sample preparation and mixing instrument according to claim 1, characterized in that, One end of the movable door (12) is mounted on the mixing roller (1) via a hinge (121), and the other end is fixed to the roller with a bolt via a fixing piece (122), thereby realizing the opening and closing of the mixing roller (1).

8. The tobacco shred sample preparation and mixing instrument according to claim 1, characterized in that, The bottom of the mounting plate (5) is equipped with vibration damping pads (51) to reduce vibrations generated during instrument operation.

9. The tobacco sample preparation and mixing instrument according to claim 1, characterized in that, The instrument is equipped with a power cord and can be plugged into a 220V power supply for use.

10. A method for blending tobacco shreds, characterized in that, Using the tobacco shred sample preparation and blending apparatus according to any one of claims 1-9, the tobacco shred blending method includes the following steps: Step S1, Power connection: Connect the power cord of the tobacco sample preparation and mixing instrument to a 220V power supply to complete the instrument power supply; Step S2, tobacco feeding: Open the movable door (12) of the mixing drum (1), put the tobacco to be mixed into the mixing drum (1), and close the movable door (12). Step S3, parameter setting: Start the servo motor (3) through the control box (4), and set the appropriate speed of the mixing roller (1) according to the moisture content and width of the tobacco shreds; Step S4, mixing operation: The servo motor (3) is controlled by the control box (4) to drive the mixing roller (1) to rotate alternately in the forward and reverse directions in a timely manner, so that the tobacco shreds are fully in contact with the tack (111) inside the mixing roller (1) and mixed. Step S5, Mixing and Retrieving: After the tobacco is mixed, turn off the servo motor (3), open the movable door (12), and rotate the movable door (12) to the lowest position so that the mixed tobacco is poured into the receiving box (2) below.