Artemisia leaf drying machine

Abstract

The utility model discloses an artemisia leaf drying machine, include: drying cylinder, the drying cylinder bottom end center fixed junction has rotation motor, rotation motor output shaft end surface fixed junction has rotation insert frame, the rotation insert frame inside is inserted and is equipped with artemisia leaf net box, artemisia leaf net box one end articulates artemisia leaf net cover, the drying cylinder bottom surface through -connection has the ring cylinder of screening fine, the ring cylinder of screening fine bottom surface evenly is equipped with a plurality of groups of screening fine aperture, the utility model discloses in artemisia leaf net box is driven with rotation insert frame uniform speed rotation through rotation motor, cooperation hollow support design, make artemisia leaf all -round contact hot -blast and slightly turn over, avoid drying not completely or excessive drying, and greatly reduce artemisia leaf broken condition, guarantee quality consistency.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, specifically a mugwort leaf dryer. Background Technology

[0002] In the field of mugwort processing, drying is a key process to ensure the quality of mugwort and extend its storage time, and various mugwort drying devices have emerged.

[0003] Existing Chinese patent document CN221611744U discloses a drying device for mugwort leaves that can be dried evenly by heat, including a drying chamber, a stirring mechanism, and a dispersing mechanism; the drying chamber has a dispersing chamber at its upper end, with a feed hopper fixedly connected to the upper end of the dispersing chamber; a discharge port is provided at the lower end of the rear surface of the drying chamber, and a second chamber door is hinged to the rear end of the discharge port; an air inlet is provided at the center of the rear surface of the drying chamber, with an air inlet pipe at the rear end of the air inlet; symmetrically distributed air outlets are provided at the upper end of the drying chamber, and each air outlet is provided with an air outlet pipe at its upper end; the inner end of the air outlet pipe... Each part is equipped with an isolation net, and the lower end of the drying chamber is fixedly connected to a support; the stirring mechanism is located inside the drying chamber; this mugwort drying device, which can be heated and dried evenly, greatly increases the contact area between the mugwort and the hot air, thereby making the mugwort more evenly heated and ultimately greatly improving the drying efficiency of the mugwort; however, this mugwort drying device still has shortcomings: it relies on the stirring mechanism to directly stir the mugwort to achieve uniform heating, but the stirring process is prone to causing the mugwort to break, especially in mugwort processing scenarios where the integrity of the leaves is required, such as medicinal mugwort, where breakage will significantly reduce the quality of the mugwort. Utility Model Content

[0004] The purpose of this invention is to provide a mugwort dryer that addresses the problem that the above-mentioned mugwort drying device relies on a stirring mechanism to directly agitate the mugwort leaves to achieve uniform heating, but the mugwort leaves are easily broken during the stirring process, especially in mugwort processing scenarios where the integrity of the leaves is required, such as medicinal mugwort leaves, where breakage will significantly reduce the quality of the mugwort leaves.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mugwort drying machine, comprising: a drying cylinder, a rotating motor fixedly connected to the center of the bottom end of the drying cylinder, a rotating insert frame fixedly connected to the end face of the output shaft of the rotating motor, a mugwort mesh box inserted inside the rotating insert frame, a mugwort mesh cover hinged to one end of the mugwort mesh box, a fine sieve ring cylinder connected through the bottom surface of the drying cylinder, a plurality of sets of fine sieve holes evenly opened on the bottom surface of the fine sieve ring cylinder, an exhaust pipe connected through the bottom end of the outer side of the fine sieve ring cylinder, an exhaust fan installed at the bottom end of the exhaust pipe, a final-stage crushing disc inserted inside the top end of the exhaust pipe, a secondary discharge port opened through one side of the fine sieve ring cylinder, and drying modules symmetrically connected through the outer sides of the drying cylinder.

[0006] As a further embodiment of this utility model: the output shaft of the rotating motor passes through the bottom surface of the drying cylinder and is fixedly connected to the rotating insert frame on its top end face. The rotating insert frame is set as a hollow four-way support structure, and the mugwort net box and mugwort net cover are movably inserted therein, and can rotate at a uniform speed under the support of the rotating insert frame.

[0007] As a further improvement of this utility model: rotating inserts are symmetrically fixed to both sides of the bottom end of the mugwort net box, and two sets of L-shaped movable slots are symmetrically opened through one side of the rotating insert frame. Both sets of L-shaped movable slots are set as inverted L-shaped structures, and the width of the slots is adapted to the diameter of the rotating inserts, so as to restrict the insertion and extraction trajectory of the mugwort net box and make it completely flat for easy placement of mugwort.

[0008] As a further embodiment of this utility model: the screening ring cylinder is an annular cylindrical structure, and the outer diameter of the bottom surface of the cylinder is lower than the inner diameter, so that the crushed material falling inside naturally gathers in the direction of the outer diameter. The screening ring cylinder, the exhaust pipe, the exhaust fan and the final crushing disc are all coaxially arranged, and the axis coincides with the output shaft of the rotating motor. The bottom surface of the final crushing disc is set as a fine mesh structure, which receives the crushed material without hindering the suction action.

[0009] As a further embodiment of this utility model: a connecting rod is fixedly connected to one side of the bottom end of the rotating insert frame, and a sweeping brush is fixedly connected to the bottom surface of the end of the connecting rod. The connecting rod and the sweeping brush sweep the broken material inside the screen ring cylinder as the rotating insert frame rotates, so that the finest material is collected in the final broken material tray, and the second finest material cannot pass through the fine holes of the screen and is discharged outside the equipment through the sweeping brush along the secondary discharge port for collection.

[0010] As a further embodiment of this utility model: several sets of connecting grooves are evenly opened on the outer side of the top of the drying cylinder; a cover ring is movably fitted on the outer side of the top of the drying cylinder; connecting strips adapted to the number and specifications of the connecting grooves are symmetrically fixed to the inner side of the cover ring to restrict the cover ring from being tightly attached to the outer side of the drying cylinder and ensure sealing; a spring ring is fixedly fitted on one end of the outer side of the drying cylinder; tension springs are evenly fixed to the bottom surface of the cover ring; the bottom ends of several sets of tension springs are all fixed to the top surface of the spring ring to elastically connect the drying cylinder and the cover ring; a drying cylinder cover plate is hinged to one end of the top of the cover ring.

[0011] Compared with the prior art, the beneficial effects of this utility model are: In this invention, a rotating motor drives the mugwort leaf mesh box to rotate at a uniform speed along with the rotating insert frame. Combined with a hollowed-out support design, this allows the mugwort leaves to come into full contact with hot air and be slightly turned, preventing incomplete or over-drying and significantly reducing leaf breakage, ensuring consistent quality. During the drying process, the broken material is collected on the inclined bottom surface of the fine screen ring cylinder, dispersed by a sweeping brush, and then further collected through the fine mesh of the screen and the negative pressure of the exhaust fan. The finer broken material is discharged through a secondary discharge port, achieving graded utilization of the broken material, significantly improving the utilization rate of mugwort leaf resources, reducing waste, and balancing drying effect with resource value. Attached Figure Description Figure 1 This is a schematic diagram of the overall structure of the mugwort drying machine described in this utility model; Figure 2 This is a schematic diagram of the rotating insert frame in the mugwort drying machine described in this utility model; Figure 3 This is a schematic diagram of the structure of the mugwort mesh box in the mugwort drying machine described in this utility model; Figure 4 This is a schematic diagram of the cover plate ring in the mugwort drying machine described in this utility model; Figure 5 This is a schematic diagram of the sieve ring cylinder in the mugwort drying machine described in this utility model; Figure 6 This is a schematic diagram of the final crushing disc in the mugwort leaf dryer described in this utility model.

[0012] In the diagram: 1. Drying cylinder; 2. Rotating motor; 3. Rotating insert frame; 4. Artemisia argyi mesh box; 5. Artemisia argyi mesh cover; 6. Rotating insert post; 7. L-shaped movable groove; 8. Fine sieve ring cylinder; 9. Fine sieve mesh; 10. Exhaust duct; 11. Exhaust fan; 12. Final stage crushing disc; 13. Secondary discharge port; 14. Connecting rod; 15. Sweeping brush; 16. Connecting groove; 17. Cover ring; 18. Connecting strip; 19. Spring ring; 20. Tension spring; 21. Drying cylinder cover plate; 22. Drying module. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0015] Reference Figures 1 to 6 In this embodiment of the utility model, an artemisia leaf dryer includes: a drying cylinder 1, a rotating motor 2 fixedly connected to the center of the bottom end of the drying cylinder 1, a rotating insert frame 3 fixedly connected to the end face of the output shaft of the rotating motor 2, an artemisia leaf mesh box 4 inserted inside the rotating insert frame 3, an artemisia leaf mesh cover 5 hinged to one end of the artemisia leaf mesh box 4, a sieve ring cylinder 8 connected through the bottom surface of the drying cylinder 1, a plurality of sets of fine sieve holes 9 evenly opened on the bottom surface of the sieve ring cylinder 8, an exhaust pipe 10 connected through the bottom end of the outer side of the sieve ring cylinder 8, an exhaust fan 11 installed at the bottom end of the exhaust pipe 10, a final stage crushing disc 12 inserted inside the top end of the exhaust pipe 10, a secondary discharge port 13 opened through one side of the sieve ring cylinder 8, and drying modules 22 symmetrically connected through the outer sides of the drying cylinder 1.

[0016] Reference Figure 2 and Figure 3 The output shaft of the rotating motor 2 passes through the bottom surface of the drying cylinder 1 and is fixed to the top end face of the rotating insert frame 3. The rotating insert frame 3 is set as a hollow four-way support structure, in which the mugwort net box 4 and the mugwort net cover 5 are inserted and can rotate at a uniform speed under the support of the rotating insert frame 3.

[0017] The above solution employs a sealed bearing at the point where the output shaft of the rotating motor 2 passes through the bottom of the drying cylinder 1. This ensures smooth rotation of the output shaft and prevents hot air leakage from the drying cylinder 1. The four-way support of the rotating frame 3 is made of high-strength metal, and its hollow design reduces the overall weight and load on the rotating motor 2. Furthermore, it does not obstruct the hot air generated by the drying module 22, ensuring that the hot air is evenly distributed to the mugwort leaves in the mugwort mesh box 4. When the rotating motor 2 drives the rotating frame 3 to rotate at a constant speed, the mugwort mesh box 4 rotates synchronously, allowing the mugwort leaves inside to come into full contact with the hot air. This avoids the problem of incomplete or over-drying caused by uneven heating of the mugwort leaves in traditional static drying. Simultaneously, during the uniform rotation, the mugwort leaves will slightly tumble within the mesh box, further improving heating uniformity and ensuring consistent quality after drying. This method is suitable for large-scale, standardized mugwort drying operations, avoiding the severe breakage of mugwort leaves that may result from direct agitation during drying.

[0018] Reference Figure 2 and Figure 3 The bottom of the mugwort net box 4 is symmetrically fixed with rotating inserts 6 on both sides. Two sets of L-shaped movable slots 7 are symmetrically opened on one side of the rotating insert frame 3. Both sets of L-shaped movable slots are set as inverted L-shaped structures, and the width of the slots is adapted to the diameter of the rotating inserts 6, so as to limit the insertion and extraction trajectory of the mugwort net box 4 and make it completely flat for easy placement of mugwort.

[0019] The above scheme employs an L-shaped movable groove 7 divided into a vertical section and a horizontal section. The vertical section guides the rotating insert 6 to be inserted from top to bottom, while the horizontal section limits the degree of rotation of the rotating insert 6. A circular limiting block, slightly larger in diameter than the width of the L-shaped movable groove 7, is provided at the end of the rotating insert 6 to prevent it from detaching from the groove and ensure a stable connection between the mugwort net box 4 and the rotating frame 3. The advantage of this structure lies in its ease of operation; when placing mugwort, simply insert the rotating insert of the mugwort net box 4... Insert the 6-shaped movable slot 7 into the vertical section to complete the installation of the mesh box. No complicated locking structure is required. When removing the mugwort mesh box 4, pull it in the opposite direction to make the rotating insert 6 return to the horizontal section along the vertical section, and then flip it backward to make it flat. The whole process does not require tools and can be quickly operated by one person. In addition, the design of the mugwort mesh box 4 to be completely flat makes it convenient for operators to spread the mugwort to be dried evenly in the box, avoiding the accumulation of mugwort due to the tilt of the box, further improving the uniformity of drying, and reducing the labor intensity of loading mugwort.

[0020] Reference Figure 5 and Figure 6The fine screening ring cylinder 8 is a ring-shaped cylindrical structure, and the outer diameter of the bottom surface of the cylinder is lower than the inner diameter, so that the crushed material falling inside naturally gathers in the direction of the outer diameter. The fine screening ring cylinder 8, the exhaust duct 10, the exhaust fan 11 and the final crushing disc 12 are all coaxially arranged, and the axis coincides with the output shaft of the rotating motor 2. The bottom surface of the final crushing disc 12 is set with a fine mesh structure, which can receive the crushed material without hindering the suction action.

[0021] The above scheme is adopted: the inclination angle of the bottom surface of the sieve ring cylinder 8 ensures that the broken material naturally gathers to the outside under the action of gravity, and does not cause the broken material to fall and accumulate due to excessive inclination angle. The connection between the exhaust duct 10 and the sieve ring cylinder 8 is funnel-shaped, which can guide the airflow to concentrate and flow into the exhaust duct 10. The final broken material tray 12 adopts a drawer-type structure and is inserted from the top of the exhaust duct 10. During the drying process, the broken material generated by the mugwort leaves will fall from the mesh of the mugwort leaf mesh box 4 into the sieve ring cylinder 8. The inclination of the bottom surface causes the broken material to flow to the outside. The airflow is concentrated and facilitates subsequent classification and collection. When the exhaust fan 11 is working, the negative pressure will drive the airflow from the drying cylinder 1 through the fine screen ring cylinder 8 and the exhaust duct 10. When the airflow passes through the fine screen holes 9, the finest powder will enter the exhaust duct 10 with the airflow and be intercepted and collected by the screen plate of the final crushing disc 12, realizing the classification and treatment of the crushed material. The coaxial structure ensures that the airflow path is smooth, reduces wind resistance, reduces the energy consumption of the exhaust fan 11, and avoids the problem of crushed material accumulation and blockage caused by airflow turbulence, ensuring the long-term stable operation of the equipment.

[0022] Reference Figure 5 and Figure 6 A connecting rod 14 is fixedly connected to one side of the bottom of the rotating insert frame 3. A sweeping brush 15 is fixedly connected to the bottom surface of the end of the connecting rod 14. The connecting rod 14 and the sweeping brush 15 sweep the broken material inside the screen ring cylinder 8 as the rotating insert frame 3 rotates, so that the finest material is collected in the final crushing disc 12, and the second finest material cannot pass through the fine holes 9 of the screen and is discharged outside the equipment through the sweeping brush 15 along the secondary discharge port 13 for collection.

[0023] The above solution is adopted: the connecting rod 14 is made of steel, and its length is designed to ensure that the bristles of the sweeping brush 15 can closely fit the inner bottom surface of the fine screen ring cylinder 8. The bristles are made of high-temperature resistant and wear-resistant nylon material to avoid aging or wear on the inner wall of the fine screen ring cylinder 8 under high temperature environment. The secondary discharge port 13 can discharge large pieces of debris that cannot pass through the fine screen holes 9. The functional advantage is that when the insert frame 3 is rotated to drive the sweeping brush 15 to rotate, the bristles will continuously sweep the debris on the inner bottom surface of the fine screen ring cylinder 8, breaking up the accumulated debris and making it more compact. The fine powder can pass through the fine holes 9 of the sieve more fully and be sucked into the final crushing disc 12 by the exhaust fan 11, improving the collection rate of fine crushed material. On the other hand, for the secondary crushed material that cannot pass through the fine holes 9 of the sieve, such as small branches of mugwort leaves and larger leaf fragments, the sweeping brush 15 will push them to the secondary discharge port 13 to achieve graded discharge of crushed material, avoid mixing of crushed material of different specifications, and facilitate subsequent classification and utilization. For example, fine powder can be used to make mugwort powder, and secondary crushed material can be used to extract essential oil, etc., improving the utilization rate of mugwort resources and reducing waste.

[0024] Reference Figure 4 Several sets of connecting grooves 16 are evenly opened on the outer side of the top of the drying cylinder 1. A cover ring 17 is movably sleeved on the outer side of the top of the drying cylinder 1. Connecting strips 18 that are symmetrically fixed to the inner side of the cover ring 17 and are adapted to the number and specifications of the connecting grooves 16 are used to limit the state of the cover ring 17 to be tightly attached to the outer side of the drying cylinder 1 to ensure sealing. A spring ring 19 is fixedly sleeved on one end of the outer side of the drying cylinder 1. Tension springs 20 are evenly fixed to the bottom surface of the cover ring 17. The bottom ends of several sets of tension springs 20 are all fixed to the top surface of the spring ring 19 to elastically connect the drying cylinder 1 and the cover ring 17. A drying cylinder cover plate 21 is hinged to one end of the top of the cover ring 17.

[0025] The above scheme employs a clearance fit between the connecting strip 18 and the connecting groove 16, ensuring that the cover ring 17 slides up and down along the outside of the drying cylinder 1 while preventing circumferential rotation of the ring. A high-temperature resistant sealing strip is provided on the inner side of the cover ring 17. When the cover ring 17 is tightly attached to the top of the drying cylinder 1, the sealing strip fills the gap between them, effectively preventing heat leakage. A damping pivot is provided at the hinge between the drying cylinder cover 21 and the cover ring 17, allowing the drying cylinder cover 21 to stop at any angle, facilitating the placement or removal of the mugwort mesh box 4 by operators. The elastic tension of the tension spring 20 will always pull the cover ring 17 downwards, ensuring it is tightly attached to the drying cylinder. The top outer side ensures airtightness during the drying process, reduces heat loss, lowers the energy consumption of the drying module 22, and maintains the stability of the temperature inside the drying cylinder 1, ensuring drying efficiency. When the drying cylinder needs to be opened, simply press down on the cover ring 17 to compress the tension spring 20, and the drying cylinder cover 21 can be opened, making operation effortless. In addition, the elastic connection structure between the cover ring 17 and the drying cylinder 1 can adapt to the slight deformation caused by the temperature rise of the cylinder during the drying process, avoiding the sealing failure problem caused by deformation of the rigid connection, and extending the service life of the equipment. The above structure ensures that the part of the rotating insert frame 3 protruding from the drying cylinder 1 can also be covered within the drying range.

[0026] The working principle of this utility model is as follows: The core of the device consists of a drying cylinder 1, a rotating motor 2, an artemisia leaf mesh box 4, a fine sieve ring cylinder 8, an exhaust duct 10, an exhaust fan 11, a final-stage crushing disc 12, and a drying module 22. The drying cylinder 1 provides the drying chamber, the rotating motor 2 provides rotational power, the artemisia leaf mesh box 4 carries the artemisia leaves to be dried, the fine sieve ring cylinder 8 achieves preliminary separation of crushed materials, the exhaust duct 10 guides the airflow and collects the crushed materials, and the drying module 22 provides the drying heat source. The output shaft of the rotating motor 2 passes through the bottom surface of the drying cylinder 1 and is equipped with a sealed bearing at the penetration point to ensure smooth rotation of the output shaft and prevent hot air leakage inside the drying cylinder 1. The rotating insert 3 fixed to the top of the output shaft is a hollow four-way metal support, which can reduce the weight of the output shaft. The overall weight reduces the load on the rotating motor 2, while not blocking the hot air generated by the drying module 22. The screen ring cylinder 8, which runs through the bottom of the drying cylinder 1, has an annular structure. The outer diameter of the inner bottom surface is lower than the inner diameter surface, which can promote the natural outward aggregation of the crushed material falling inside. The screen ring cylinder 8, the exhaust duct 10, the exhaust fan 11, and the final crushing disc 12 are all coaxially arranged, with the axis coinciding with the output shaft of the rotating motor 2. The bottom surface of the final crushing disc 12 has a fine mesh structure, which can receive the crushed material without hindering the suction action. The top of the drying cylinder 1 is sealed with the drying cylinder cover plate 21 through the cover ring 17. The drying modules 22 on both sides provide stable hot air for drying, forming the basic framework for the operation of the equipment. When loading mugwort leaves, open the drying cylinder cover 21. Then, align the rotating inserts 6 on both sides of the bottom of the mugwort mesh box 4 with the vertical section of the L-shaped movable groove 7 on one side of the rotating insert frame 3, and pull them out. Then, pull them out horizontally and lay them flat. The diameter of the circular limit block at the end of the rotating insert 6 is slightly larger than the width of the L-shaped movable groove 7, which can prevent the rotating insert 6 from coming out of the groove and ensure a stable connection between the mugwort mesh box 4 and the rotating insert frame 3. The horizontal section of the L-shaped movable groove 7 can limit the degree of rotation of the rotating insert 6 during rotation. After pulling out the mugwort mesh box 4, open the mugwort mesh cover 5 hinged at one end of the mugwort mesh box 4 and spread the mugwort leaves to be dried evenly in the mesh box. The design of the mugwort mesh box 4, which can be laid completely flat, facilitates the placement and spreading of mugwort leaves, further improves the uniformity of drying, and reduces the labor intensity of loading. After closing the mugwort mesh cover 5, close the drying cylinder. The elastic tension generated by the tension spring 20 of the cover plate 21 and cover plate ring 17 pulls the cover plate ring 17 downward and tightens it to fit tightly against the outer side of the top of the drying cylinder 1. The high-temperature resistant sealing strip provided on the inner side of the cover plate ring 17 can fill the gap between the cover plate ring 17 and the drying cylinder 1, effectively preventing hot air leakage and ensuring the stable sealing of the drying chamber. This elastic connection structure makes up for the deficiency of the above-mentioned rotating insert frame 3 protruding slightly from the top of the drying cylinder 1, which may cause the drying cylinder cover plate 21 to be unable to close tightly. The connecting strip 18 fixed on the inner side of the cover plate ring 17 and the connecting groove 16 on the outer side of the drying cylinder 1 are in clearance fit, which can ensure that the cover plate ring 17 slides up and down along the outer side of the drying cylinder 1, while preventing the ring from rotating circumferentially. The damping pivot is provided at the hinge of the drying cylinder cover plate 21, which can make the drying cylinder cover plate 21 stop at any angle for convenient operation. After the equipment is started, the drying module 22 continuously delivers hot air into the drying cylinder 1 to maintain a stable drying temperature inside the cylinder. At the same time, the rotating motor 2 starts, driving the rotating insert frame 3 to rotate at a uniform speed. The mugwort mesh box 4 rotates synchronously under the support of the rotating insert frame 3. The mugwort leaves inside the box are slightly turned over during the rotation, allowing them to come into contact with the hot air from all directions. This avoids the problem of uneven heating of mugwort leaves in some areas, which can lead to incomplete drying or over-drying, as is common in traditional static drying. This ensures the consistency of the quality of the dried mugwort leaves. The hollow design of the rotating insert frame 3 ensures that the hot air acts on the mugwort leaves inside the mugwort mesh box 4 without obstruction, improving heat utilization efficiency. This method is suitable for large-scale, standardized mugwort drying operations. Moreover, this rotating drying method can avoid the serious breakage of mugwort leaves that may be caused by direct stirring during drying, ensuring the integrity of the dried mugwort leaves. During the drying process, the fragments produced by the mugwort leaves fall from the mesh of the mugwort mesh box 4 into the fine screen ring cylinder 8. The inclination angle of the bottom surface of the fine screen ring cylinder 8 ensures that the fragments naturally gather outwards under gravity, but also prevents them from falling and accumulating due to excessive angle. At the same time, the connecting rod 14 fixed to one side of the bottom of the rotating insert frame 3 drives the sweeping brush 15 at the bottom surface to rotate synchronously with the rotating insert frame 3. The connecting rod 14 is a rigid rod with a designed length to ensure that the bristles of the sweeping brush 15 are in close contact with the bottom surface of the fine screen ring cylinder 8. The bristles are made of high-temperature resistant and wear-resistant nylon material to prevent aging or wear on the inner wall of the fine screen ring cylinder 8 under high temperature conditions. The sweeping brush 15 continuously sweeps the fragments on the bottom surface of the fine screen ring cylinder 8, breaking up the gathered fragments and allowing the fine powder to pass more fully through the fine screen holes 9 on the bottom surface of the fine screen ring cylinder 8. On the other hand, the working of the exhaust fan 11 generates negative pressure, driving airflow from the drying cylinder 1 through the fine screen ring cylinder. 8. The exhaust duct 10 discharges the air. The connection between the exhaust duct 10 and the fine screen ring cylinder 8 is funnel-shaped, which can guide the airflow to concentrate and flow into the exhaust duct 10. After the fine powder enters the exhaust duct 10 with the airflow, it is intercepted and collected by the screen plate of the final-stage crushing disc 12 inserted inside the top of the exhaust duct 10. The final-stage crushing disc 12 has a drawer-type structure, which is convenient for subsequent cleaning. For the secondary fine materials that cannot pass through the fine screen holes 9, such as small branches of mugwort leaves and larger leaf fragments, the sweeping brush 15 will push them to the secondary discharge port 13 opened through one side of the fine screen ring cylinder 8, so that they are discharged outside the equipment, realizing the graded processing of the crushed materials, which is convenient for subsequent classification and utilization, such as fine powder to make mugwort powder, and secondary fine materials to extract essential oil, etc., improving the utilization rate of mugwort resources and reducing waste. The coaxial airflow structure ensures smooth airflow path, reduces wind resistance, reduces the energy consumption of the exhaust fan 11, and avoids the problem of crushed material accumulation and blockage caused by airflow turbulence, ensuring long-term stable operation of the equipment. After drying is complete, turn off the drying module 22 and the rotating motor 2. Wait for the temperature inside the drying drum 1 to drop to a safe range, open the drying drum cover 21 and pull the mugwort mesh box 4 in the opposite direction so that the rotating insert 6 returns to the horizontal section along the vertical section of the L-shaped movable groove 7. Then pull the mugwort mesh box 4 upward and open the mugwort mesh cover 5 to take out the dried mugwort. At the same time, the final stage crushing disc 12 in the exhaust duct 10 can be pulled out to clean the collected fine powder. Collect the secondary fine powder through the secondary discharge port 13 to complete the equipment cleaning and prepare for the next use.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A leaf of artemisia oblonga drying machine comprising: A drying cylinder (1) is characterized in that a rotating motor (2) is fixedly connected to the center of the bottom end of the drying cylinder (1), a rotating insert frame (3) is fixedly connected to the end face of the output shaft of the rotating motor (2), a mugwort mesh box (4) is inserted inside the rotating insert frame (3), a mugwort mesh cover (5) is hinged to one end of the mugwort mesh box (4), a sieve ring cylinder (8) is connected through the bottom surface of the drying cylinder (1), a number of sets of fine sieve holes (9) are evenly opened on the bottom surface of the sieve ring cylinder (8), an exhaust pipe (10) is connected through the bottom end of the outside of the sieve ring cylinder (8), an exhaust fan (11) is installed at the bottom end of the inside of the exhaust pipe (10), a final stage crushing disc (12) is inserted inside the top of the exhaust pipe (10), a secondary discharge port (13) is opened through one side of the sieve ring cylinder (8), and drying modules (22) are symmetrically connected through the two sides of the outside of the drying cylinder (1).

2. The ephedra leaf drying machine according to claim 1, characterized in that, The output shaft of the rotating motor (2) passes through the bottom surface of the drying cylinder (1) and is fixed to the top end face of the rotating insert frame (3). The rotating insert frame (3) is set as a hollow four-way support structure. The mugwort net box (4) and the mugwort net cover (5) are inserted into it and can rotate at a uniform speed under the support of the rotating insert frame (3).

3. The ephedra leaf drying machine according to claim 2, characterized in that, The bottom of the mugwort net box (4) is symmetrically fixed with rotating inserts (6) on both sides. Two sets of L-shaped movable slots (7) are symmetrically opened on one side of the rotating insert frame (3). Both sets of L-shaped movable slots are set as inverted L-shaped structures, and the width of the slots is matched with the diameter of the rotating inserts (6) so as to limit the insertion and extraction trajectory of the mugwort net box (4) and make it completely flat for placing mugwort.

4. The ephedra leaf drying machine according to claim 1, characterized in that, The fine screening ring cylinder (8) is a ring-shaped cylindrical structure, and the outer diameter of the bottom surface of the cylinder is lower than the inner diameter, so that the crushed material falling inside naturally gathers in the direction of the outer diameter. The fine screening ring cylinder (8), the exhaust cylinder (10), the exhaust fan (11) and the final crushing disc (12) are all coaxially arranged, and the axis coincides with the output shaft of the rotating motor (2). The bottom surface of the final crushing disc (12) is set as a fine mesh structure, which receives the crushed material without hindering the suction action.

5. The ephedra leaf drying machine according to claim 1, wherein, A connecting rod (14) is fixedly connected to one side of the bottom of the rotating insert frame (3). A sweeping brush (15) is fixedly connected to the bottom surface of the end of the connecting rod (14). The connecting rod (14) and the sweeping brush (15) sweep the broken material inside the screen ring cylinder (8) as the rotating insert frame (3) rotates, so that the finest material is collected in the final broken material disc (12). The second finest material cannot pass through the fine mesh (9) of the screen and is discharged outside the equipment through the sweeping brush (15) along the secondary discharge port (13) for collection.

6. The ephedra leaf drying machine according to claim 1, characterized in that, The top outer side of the drying cylinder (1) is evenly provided with several sets of connecting grooves (16). The top outer side of the drying cylinder (1) is movably fitted with a cover ring (17). The inner side of the cover ring (17) is symmetrically fixed with connecting strips (18) that match the number and specifications of the connecting grooves (16) to limit the state of the cover ring (17) to be tightly attached to the outside of the drying cylinder (1) to ensure sealing. One end of the outer side of the drying cylinder (1) is fixedly fitted with a spring ring (19). The bottom surface of the cover ring (17) is evenly fixed with tension springs (20). The bottom ends of several sets of tension springs (20) are all fixed to the top surface of the spring ring (19) to elastically connect the drying cylinder (1) and the cover ring (17). One end of the top of the cover ring (17) is hinged with a drying cylinder cover plate (21).

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