Cordyceps sinensis drying device

Abstract

The invention belongs to the technical field of cordyceps sinensis processing, and particularly discloses a cordyceps sinensis drying device which comprises a drying cylinder and a mounting rod arranged in the top end of the drying cylinder, the lower end of the mounting rod is fixedly connected with a special-shaped frame, a double-shaft servo motor is fixedly installed on the special-shaped frame, and the upper output end of the double-shaft servo motor is connected with a reciprocating swing mechanism. The output end of the reciprocating swing mechanism is connected with a stepped heat shunting assembly, the lower output end of the double-shaft servo motor is connected with a synchronous circumference following mechanism, the synchronous circumference following mechanism is connected with a circulating face changing mechanism, and two placing assemblies are arranged at the rotating tail end of the synchronous circumference following mechanism. The vortex tube system is matched with the radial bearing disc, grass heads of cordyceps sinensis are centripetally arranged, the heat separation effect of the vortex tube is utilized, fluid at the high-temperature end is used for drying outer circle worm bodies, gradient heat flow at the low-temperature end is used for drying grass heads of the other bearing part, and a reciprocating swing and circulating face changing mechanism is used for assistance. And low-cost differentiated precise drying of insect bodies and grass heads is achieved.

Description

Technical Field

[0001] This invention belongs to the field of Cordyceps sinensis processing technology, specifically referring to a Cordyceps sinensis drying device. Background Technology

[0002] Cordyceps sinensis, a precious tonic in traditional Chinese medicine, derives its medicinal value primarily from various bioactive components such as cordycepin, cordycepic acid, adenosine, and polysaccharides. Freshly harvested Cordyceps sinensis typically has a water content as high as 70% to 80% and is rich in protein and amino acids. If not dehydrated promptly, it is highly susceptible to enzymatic browning, mold growth, and rotting at room temperature, leading to the degradation of its active ingredients and severely impacting its medicinal and economic value. However, existing drying technologies face significant technical bottlenecks in processing Cordyceps sinensis.

[0003] Cordyceps sinensis consists of two parts: the underground "insect body" (the sclerotium of the infected larvae) and the above-ground "grass head" (the fungal stroma). These two parts differ significantly in tissue density, specific surface area, water binding form, and heat sensitivity. The insect body is thicker in diameter, denser in tissue, rich in fat and protein, and has high resistance to water diffusion, making it a typical internal diffusion-controlled drying material. The grass head is slender and fibrous, with water evaporating very easily. It has poor heat resistance and is highly susceptible to charring, brittleness, or blackening in high-temperature airflow. Most conventional drying equipment (such as hot air ovens and infrared dryers) uses a uniform temperature field, placing the entire Cordyceps sinensis in a drying environment with the same temperature and airflow velocity. This one-size-fits-all approach cannot accommodate the distinct drying kinetics of the insect body and the grass head. Maintaining high temperatures or long drying times to ensure thorough drying of the insect body inevitably leads to over-drying, scorching, and breakage of the grass head, resulting in significant loss of active ingredients. Summary of the Invention

[0004] To address the above issues, this invention provides a Cordyceps sinensis drying device. Using a vortex tube system in conjunction with a radial support plate, the Cordyceps sinensis heads are arranged concentrically. Utilizing the thermal separation effect of the vortex tube, the outer ring of the insect body is dried by high-temperature fluid, while the lower-temperature stepped heat flow dries the other support plate's heads. Furthermore, a reciprocating oscillation and circulating surface-changing mechanism enables comprehensive dynamic drying, achieving low-cost, differentiated, and precise drying of the insect body and heads, effectively protecting the finished product's appearance and active ingredients.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes a Cordyceps sinensis drying device, including a drying cylinder and an installation rod disposed at the top of the drying cylinder. A special-shaped frame is fixedly connected to the lower end of the installation rod, and a dual-axis servo motor is fixedly installed on the special-shaped frame.

[0006] Furthermore, the upper output end of the dual-axis servo motor is connected to a reciprocating swing mechanism, and the output end of the reciprocating swing mechanism is connected to a stepped heat diversion component, which is used to generate airflows of different temperatures to dry different parts of Cordyceps sinensis.

[0007] Furthermore, the lower output end of the dual-axis servo motor is connected to a synchronous circumferential following mechanism, the synchronous circumferential following mechanism is connected to a circulating face-changing mechanism, and the rotating end of the synchronous circumferential following mechanism is provided with two sets of placement components.

[0008] Furthermore, the reciprocating swing mechanism includes a swing arm vertically connected to the output end of the dual-axis servo motor, a sliding shaft vertically disposed at the end of the swing arm, and a sliding frame slidably sleeved outside the sliding shaft. A rack perpendicular to the length direction of the sliding frame is fixedly connected to one side of the sliding frame. The rack is meshed with a first gear. The first gear is coaxially connected to a first driven shaft rotatably disposed on the irregular frame. A limit groove is provided on the side of the rack away from the sliding frame. A retaining strip is provided on the irregular frame to engage and slide with the limit groove.

[0009] Furthermore, the stepped heat distribution assembly includes a vortex tube and a low-temperature tube, which are connected and coaxially arranged; it also includes a vertically tangential air inlet connected to the side of the vortex tube and a baffle plate located at the end of the vortex tube, the air inlet is connected to the heat flow, the vortex tube and the low-temperature tube are connected to the first driven shaft at the center of their total length, and a space is left between the baffle plate and the inner wall of the vortex tube.

[0010] Furthermore, the synchronous circumferential following mechanism includes a second gear fixedly connected to the lower output end of the dual-axis servo motor, a third gear meshing with the second gear, and a second driven shaft coaxially connected to the third gear. The second driven shaft is coaxially arranged with the first driven shaft, and the gear ratio between the second gear and the third gear is 1:2. A horizontally arranged rotating rod is fixedly connected to the bottom end of the second driven shaft, and vertically arranged rotating shafts are rotatably connected to both ends of the rotating rod. The two sets of placement components are detachably fixed to the top ends of the two rotating shafts.

[0011] Furthermore, the circulating face-changing mechanism includes a fixed sprocket coaxially disposed outside the second driven shaft and stationary relative to the dual-axis servo motor, a first follower sprocket fixedly disposed on one of the rotating shafts, and a first chain connecting the fixed sprocket and the first follower sprocket. The tooth ratio between the fixed sprocket and the first follower sprocket is 2:1. Second follower sprockets are also fixedly disposed on the rotating shafts at both ends of the rotating rod. The two second follower sprockets are connected by a second chain drive to achieve synchronous rotation of the two sets of placement components.

[0012] Furthermore, the placement assembly includes a ring cover fixedly connected to the top of the rotating shaft, an openable mesh cover on both sides of the ring cover, and a placement ring on one of the mesh covers. The placement ring has multiple positioning holes for radially placing Cordyceps sinensis, which facilitates fixing the Cordyceps sinensis with the grass head facing the center and the insect body facing the outer circle.

[0013] Furthermore, an air outlet is provided on the side wall of the drying cylinder, and an opening and closing door is hinged to the front side of the drying cylinder. The position of the air outlet corresponds to the work position when the placed components are being dried.

[0014] Furthermore, the upper and lower output ends of the dual-axis servo motor rotate at the same speed, and the dual-axis servo motor is configured to stop after rotating 180 degrees each time; when the dual-axis servo motor drives the rocker arm to rotate 180 degrees, the sliding shaft drives the sliding frame and rack to move along a straight line for one stroke, driving the first gear meshing with the rack to rotate 90 degrees; when the dual-axis servo motor drives the rocker arm to continue rotating 180 degrees, the rack moves in the opposite direction to reset, driving the first gear to rotate in the opposite direction by 90 degrees to return to the initial angle.

[0015] Furthermore, when the dual-axis servo motor rotates 180 degrees for the first time, the reciprocating swing mechanism drives the stepped heat distribution component to swing 90 degrees, and at the same time, the synchronous circumferential following mechanism drives the rotating rod to rotate 90 degrees in the same direction. During the rotation of the rotating rod, the cyclic face-changing mechanism drives the placement component to rotate 180 degrees relative to the rotating rod, so that the placement component completes the face-changing relative to the stepped heat distribution component.

[0016] Furthermore, in the initial drying position, the space between the high-temperature end of the vortex tube and the baffle plate is directly opposite the outer ring of the insect body position of one set of placement components, and the low-temperature end of the low-temperature tube is directly opposite the central grass head position of the other set of placement components.

[0017] The beneficial effects achieved by the present invention using the above structure are as follows: (1) This invention addresses the significant differences in tissue density and heat sensitivity between the insect body and the head of Cordyceps sinensis. By setting up a stepped heat diversion component, the heat separation effect of the vortex tube is used to separate a single air source into two stepped airflows of high temperature and low temperature. Combined with the radial bearing method of the placement component, the head of Cordyceps sinensis, which has poor heat resistance and is prone to charring, is placed in the central low temperature zone, while the insect body, which has dense tissue and high resistance to moisture diffusion, is placed in the outer high temperature zone. This differentiated and precise drying mode effectively solves the problems of excessive drying of the head of Cordyceps sinensis, brittle breakage and blackening, or incomplete drying of the insect body caused by traditional uniform temperature field drying. It preserves the bioactive components such as cordycepin and adenosine to the greatest extent, avoids enzymatic browning, and significantly improves the medicinal value and appearance integrity of the finished product.

[0018] (2) The present invention achieves full-range dynamic drying process through the coordinated operation of the reciprocating swing mechanism driven by the dual-axis servo motor, the synchronous circumferential following mechanism and the circulating face-changing mechanism. While the stepped heat diversion component performs reciprocating scanning drying on the placement component, the fixed sprocket and the first follower sprocket are matched with a specific tooth ratio to force the placement component to rotate and flip during the revolution. This automated circulating face-changing mechanism ensures that both sides of the Cordyceps sinensis can be alternately dried by the appropriate temperature airflow, avoiding uneven local heating or dead corners caused by static drying, and ensuring the consistency of drying of the entire batch of materials.

[0019] (3) The present invention has a high degree of integration and energy saving in structural design. It cleverly realizes the complex composite motion trajectory of heat source swing, material revolution and material rotation and flipping by using only a single power source, namely a dual-axis servo motor, combined with a gear rack and chain drive system. The structure is compact and the operation is stable. At the same time, the hot and cold air streams separated by the vortex tube are used simultaneously to dry different parts of Cordyceps sinensis at different work stations. That is, the high temperature end dries one group of insect bodies, and the low temperature end dries another group of grass heads at the same time. This realizes the full utilization of energy in a stepwise manner, avoids the energy waste caused by traditional drying equipment in order to obtain a specific temperature, and significantly reduces the operating cost and energy consumption of the equipment. Attached Figure Description

[0020] Figure 1 This is a first three-dimensional structural schematic diagram of a Cordyceps sinensis drying device proposed in this invention.

[0021] Figure 2 This is a second three-dimensional structural schematic diagram of a Cordyceps sinensis drying device proposed in this invention.

[0022] Figure 3 This is a schematic diagram showing the structural relationship between the reciprocating oscillation mechanism and the stepped heat diversion component of a Cordyceps sinensis drying device proposed in this invention.

[0023] Figure 4 This is a schematic diagram of the stepped heat distribution component of a Cordyceps sinensis drying device proposed in this invention.

[0024] Figure 5 This is a schematic diagram of the structure of a dual-axis servo motor in a Cordyceps sinensis drying device proposed in this invention.

[0025] Figure 6 This is a schematic diagram of the reciprocating oscillating mechanism of a Cordyceps sinensis drying device proposed in this invention.

[0026] Figure 7 This is a schematic diagram of the arrangement components of a Cordyceps sinensis drying device proposed in this invention.

[0027] Figure 8This invention relates to a process in which one of the placement components of a Cordyceps sinensis drying device is dried on both sides by a vortex tube.

[0028] Figure 9 This invention describes the process of a Cordyceps sinensis drying device where the same placement component is dried on both sides by a low-temperature tube.

[0029] The components include: 1. Drying drum; 11. Opening door; 12. Air outlet; 13. Mounting rod; 2. Irregular frame; 3. Dual-axis servo motor; 4. Reciprocating swing mechanism; 41. Swing rod; 42. Sliding shaft; 43. Sliding frame; 44. Rack; 45. Limiting groove; 46. Locking strip; 47. First gear; 48. First driven shaft; 5. Stepped heat distribution assembly; 51. Vortex tube; 52. Low temperature tube; 53. Air inlet. 54. Wind deflector; 6. Synchronous circumferential following mechanism; 61. Second gear; 62. Third gear; 63. Second driven shaft; 64. Rotating rod; 65. Rotating shaft; 7. Circulating face-changing mechanism; 71. Fixed sprocket; 72. First driven sprocket; 73. First chain; 74. Second driven sprocket; 75. Second chain; 8. Placement assembly; 81. Ring cover; 82. Mesh cover; 83. Positioning port; 84. Placement ring.

[0030] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "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 this 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. Therefore, they should not be construed as limitations on this invention.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, the present invention proposes a Cordyceps sinensis drying device, which mainly includes a drying cylinder 1. An air outlet 12 is provided on the side wall of the drying cylinder 1. An opening and closing door 11 is hinged to the front side of the drying cylinder 1 for taking out and putting in materials. In order to realize the suspension support of the internal core components, an installation rod 13 is provided inside the top of the drying cylinder 1. A special-shaped frame 2 is fixedly connected to the lower end of the installation rod 13. The special-shaped frame 2 serves as the basic support component of the internal transmission system. A dual-axis servo motor 3 is fixedly installed on it. The dual-axis servo motor 3 has two output ends, one upward and one downward, and is configured such that the speed of the upper and lower output ends is the same.

[0034] In order to combine the reciprocating oscillation of the heat source with the unidirectional circulation conveying of materials, the upper output end of the dual-axis servo motor 3 is connected to the reciprocating oscillation mechanism 4, and the output end of the reciprocating oscillation mechanism 4 is connected to the stepped heat diversion component 5; the lower output end of the dual-axis servo motor 3 is connected to the synchronous circumferential following mechanism 6, the synchronous circumferential following mechanism 6 is connected to the circulating face-changing mechanism 7, and the rotating end of the synchronous circumferential following mechanism 6 is provided with two sets of placement components 8.

[0035] Specifically, the reciprocating swing mechanism 4 includes a swing arm 41 vertically connected to the output end of the dual-axis servo motor 3, a sliding shaft 42 vertically disposed at the end of the swing arm 41, and a sliding frame 43 slidably sleeved outside the sliding shaft 42. A rack 44 perpendicular to the length direction of the sliding frame 43 is fixedly connected to one side of the sliding frame 43. The rack 44 is meshed with a first gear 47. The first gear 47 is coaxially connected to a first driven shaft 48 rotatably disposed on the irregular frame 2. In order to ensure the stability of the motion trajectory, a limit groove 45 is opened on the side of the rack 44 away from the sliding frame 43. A retaining strip 46 is provided on the irregular frame 2 to engage and slide with the limit groove 45.

[0036] In this embodiment, the dual-axis servo motor 3 is configured to stop after rotating 180 degrees each time. Its transmission logic is as follows: When the dual-axis servo motor 3 drives the rocker arm 41 to rotate 180 degrees, the sliding shaft 42 drives the sliding frame 43 and the rack 44 to move a complete stroke in a straight line, thereby driving the first gear 47 meshing with the rack 44 to rotate 90 degrees; when the dual-axis servo motor 3 drives the rocker arm 41 to continue rotating 180 degrees in the same direction, due to the characteristic of circular motion being converted into linear reciprocating motion, the rack 44 will move in the opposite direction to reset, driving the first gear 47 to rotate in the opposite direction by 90 degrees back to the initial angle. That is, the continuous unidirectional rotation of the dual-axis servo motor 3 is converted into a 90-degree reciprocating swing of the first driven shaft 48.

[0037] To address the significant difference in heat resistance between the insect body and the head of Cordyceps sinensis, this invention designs a stepped heat distribution component 5. This component includes a vortex tube 51 and a low-temperature tube 52, which are connected and coaxially arranged. They are connected to a first driven shaft 48 at the center of their total length, allowing the stepped heat distribution component 5 to oscillate around the first driven shaft 48. The side of the vortex tube 51 has a vertically tangential air inlet 53 that connects to the interior, which is used to receive compressed hot airflow. The end of the vortex tube 51 has a baffle plate 54, with an annular space between the baffle plate 54 and the inner wall of the vortex tube 51.

[0038] Its working principle is based on the thermal separation effect of the vortex tube 51: when the compressed gas enters the vortex tube 51 tangentially through the air inlet 53, the airflow rotates at high speed in the tube and is separated into two airflows with opposite hot and cold properties. By adjusting the wind speed, a heat flow that matches the drying temperature of the insect body and the grass head can be generated. The high-temperature airflow in the outer layer flows out through the gap between the baffle plate 54 and the tube wall, while the relatively low-temperature airflow in the center is blocked by the baffle plate 54 and flows out in the opposite direction through the low-temperature tube 52. This is a conventional technical method. In the initial drying position, the space between the high-temperature end of the vortex tube 51 and the baffle plate 54 is directly opposite the outer ring position of one set of placement components 8 (i.e., the position of the insect body of Cordyceps sinensis), while the low-temperature end of the low-temperature tube 52 is directly opposite the center position of the other set of placement components 8 (i.e., the position of the grass head of Cordyceps sinensis).

[0039] In the lower transmission system, the synchronous circumferential following mechanism 6 includes a second gear 61 fixedly connected to the lower output end of the dual-axis servo motor 3, a third gear 62 meshing with the second gear 61, and a second driven shaft 63 coaxially connected to the third gear 62. The second driven shaft 63 is coaxially arranged with the upper first driven shaft 48 to ensure the consistency of the rotation center. The gear ratio of the second gear 61 to the third gear 62 is set to 1:2. Therefore, when the dual-axis servo motor 3 rotates 180 degrees, the third gear 62 and the second driven shaft 63 only rotate 90 degrees. A horizontally arranged rotating rod 64 is fixedly connected to the bottom end of the second driven shaft 63. The two ends of the rotating rod 64 are respectively rotatably connected to vertically arranged rotating shafts 65. The two sets of placement components 8 are respectively detachably fixed to the top ends of the two rotating shafts 65.

[0040] To achieve automatic turning of Cordyceps sinensis during the drying process, this device is equipped with a circulating turning mechanism 7. This mechanism includes a fixed sprocket 71 coaxially located outside the second driven shaft 63 and stationary relative to the dual-axis servo motor 3, a first follower sprocket 72 fixed on one of the rotating shafts 65, and a first chain 73 connecting the fixed sprocket 71 and the first follower sprocket 72. The key point is that the tooth ratio between the fixed sprocket 71 and the first follower sprocket 72 is 2:1. In addition, second follower sprockets 74 are fixed on the rotating shafts 65 at both ends of the rotating rod 64. The two second follower sprockets 74 are connected by a second chain 75 to achieve synchronous rotation of the two sets of placement components 8.

[0041] Based on the above speed ratio design, when the rotating rod 64 drives the rotating shaft 65 to revolve 90 degrees around the second driven shaft 63, since the fixed sprocket 71 is stationary, the first chain 73 will force the first follower sprocket 72 to rotate. According to the 2:1 gear ratio, the rotating shaft 65 will rotate 180 degrees relative to the rotating rod 64. This action enables the placement component 8 to complete a 180-degree rotation and flipping while revolving 90 degrees, thereby realizing the face-changing operation relative to the stepped heat distribution component 5.

[0042] The specific structure of the placement component 8 includes a ring cover 81 fixedly connected to the top of the rotating shaft 65, an openable mesh cover 82 on both sides of the ring cover 81, and a placement ring 84 on one of the mesh covers 82. The placement ring 84 has multiple positioning holes 83 for radially placing Cordyceps sinensis.

[0043] The specific work process is as follows: First, open the opening and closing door 11 and place the deformed part of the fresh cordyceps sinensis into the positioning port 83 of the placement ring 84, ensuring that the grass head faces inward and the insect body faces outward. Close the net cover 82 and install the placement component 8 in place. At this time, the device is in the initial position. Define the two sets of placement components 8 as the first component and the second component, respectively. Turn on the heat source, and the heat flow enters through the air inlet 53. Under the action of the vortex tube 51, a temperature gradient is generated. The high-temperature airflow suitable for drying the insect body blows out from the end of the vortex tube 51 and faces the outer ring of the insect body of the first component. The low-temperature airflow suitable for drying the grass head blows out from the end of the low-temperature tube 52 and faces the center grass head of the second component. At this time, the insect body on the side of the first component facing the heat source (defined as side A) is dried, and the grass head on the side of the second component facing the cold source is dried.

[0044] Subsequently, the dual-axis servo motor 3 is controlled to rotate 180 degrees. During this process: the upper reciprocating swing mechanism 4 drives the stepped heat distribution component 5 to rotate 90 degrees; the lower synchronous circumferential following mechanism 6 drives the rotating rod 64 to rotate 90 degrees in the same direction, so that the placement component 8 and the heat source maintain a relative position and move synchronously; at the same time, the circulating face-changing mechanism 7 drives the placement component 8 to rotate 180 degrees relative to the rotating rod 64. After the action is completed, both the stepped heat distribution component 5 and the placement component 8 have rotated 90 degrees around the rotation center, but the placement component 8 has completed flipping. At this time, the high-temperature airflow blows towards the insect body on the other side of the first component, and the low-temperature airflow blows towards the grass head on the other side of the second component. This step achieves the complete drying of both sides of the insect body in the first component and the grass head in the second component.

[0045] Next, the dual-axis servo motor 3 continues to rotate 180 degrees, the rack 44 moves in the opposite direction, driving the stepped heat diversion component 5 to swing back 90 degrees and reset to the initial angle; the lower rotating rod 64 continues to rotate 90 degrees in the original direction (cumulative 180 degrees), driving the placement component 8 to move to the new work position. At this time, the second component moves to the original position of the first component, facing the high-temperature end of the vortex tube 51; the first component moves to the original position of the second component, facing the low-temperature end of the low-temperature tube 52. The hot flow begins to dry the insect body on the corresponding side of the second component, and the low-temperature airflow begins to dry the grass head on the A side of the first component.

[0046] Finally, the dual-axis servo motor 3 rotates 180 degrees again, the stepped heat diversion component 5 rotates 90 degrees again, and the placement component 8 continues to revolve 90 degrees and flips over again. At this time, the high-temperature airflow dries the insect body on the other side of the second component, and the low-temperature airflow dries the grass head on the other side of the first group. Thus, after four stages of action, the insect body and grass head of the two groups of Cordyceps sinensis have completed double-sided drying in their respective most suitable temperature fields. After drying, the air intake is turned off, the dual-axis servo motor 3 rotates 180 degrees again to reset all components to their initial state, the finished product is removed, one drying cycle is completed, and the drying of the next cycle of new material begins.

[0047] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

[0049] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A Cordyceps sinensis drying device, comprising a drying cylinder (1) and a mounting rod (13) disposed at the top of the drying cylinder (1), characterized in that: The lower end of the mounting rod (13) is fixedly connected to a special-shaped frame (2), and a dual-axis servo motor (3) is fixedly installed on the special-shaped frame (2). The upper output end of the dual-axis servo motor (3) is connected to a reciprocating swing mechanism (4), and the output end of the reciprocating swing mechanism (4) is connected to a stepped heat diversion component (5). The lower output end of the dual-axis servo motor (3) is connected to a synchronous circumferential following mechanism (6), and a circulating face-changing mechanism (7) is connected to the synchronous circumferential following mechanism (6). The rotating end of the synchronous circumferential following mechanism (6) is provided with two sets of placement components (8). The reciprocating swing mechanism (4) includes a swing arm (41) vertically connected to the output end of the dual-axis servo motor (3), a sliding shaft (42) vertically disposed at the end of the swing arm (41), and a sliding frame (43) slidably sleeved outside the sliding shaft (42). A rack (44) perpendicular to the length direction of the sliding frame (43) is fixedly connected to one side of the sliding frame (43). The rack (44) is meshed with a first gear (47). The first gear (47) is coaxially connected to a first driven shaft (48) rotatably disposed on the irregular frame (2). A limiting groove (45) is provided on the side of the rack (44) away from the sliding frame (43). A locking strip (46) is provided on the irregular frame (2) to engage and slide with the limiting groove (45).

2. The Cordyceps sinensis drying device according to claim 1, characterized in that: The stepped heat distribution assembly (5) includes a vortex tube (51) and a low-temperature tube (52), which are connected and coaxially arranged; it also includes a vertically tangential air inlet (53) connected to the side of the vortex tube (51) and a baffle plate (54) at the end of the vortex tube (51), the air inlet (53) is connected to the heat flow, the vortex tube (51) and the low-temperature tube (52) are connected to the first driven shaft (48) at the center of the total length, and there is a space between the baffle plate (54) and the inner wall of the vortex tube (51).

3. The Cordyceps sinensis drying device according to claim 2, characterized in that: The synchronous circumferential following mechanism (6) includes a second gear (61) fixedly connected to the lower output end of the dual-axis servo motor (3), a third gear (62) meshing with the second gear (61), and a second driven shaft (63) coaxially connected to the third gear (62). The second driven shaft (63) is coaxially arranged with the first driven shaft (48). The gear ratio between the second gear (61) and the third gear (62) is 1:

2. A horizontally arranged rotating rod (64) is fixedly connected to the bottom end of the second driven shaft (63). The two ends of the rotating rod (64) are respectively rotatably connected to vertically arranged rotating shafts (65). Two sets of placement components (8) are respectively detachably fixed to the top ends of the two rotating shafts (65).

4. The Cordyceps sinensis drying device according to claim 3, characterized in that: The circulating face-changing mechanism (7) includes a fixed sprocket (71) coaxially disposed outside the second driven shaft (63) and stationary relative to the dual-axis servo motor (3), a first follower sprocket (72) fixedly disposed on one of the rotating shafts (65), and a first chain (73) connecting the fixed sprocket (71) and the first follower sprocket (72). The tooth ratio of the fixed sprocket (71) to the first follower sprocket (72) is 2:

1. Second follower sprockets (74) are also fixedly disposed on the rotating shafts (65) at both ends of the rotating rod (64). The two second follower sprockets (74) are connected by a second chain (75).

5. The Cordyceps sinensis drying device according to claim 4, characterized in that: The placement assembly (8) includes a ring cover (81) fixedly connected to the top of the rotating shaft (65), an openable mesh cover (82) on both sides of the ring cover (81), and a placement ring (84) on one of the mesh covers (82). The placement ring (84) has multiple positioning ports (83) for radially placing Cordyceps sinensis.

6. The Cordyceps sinensis drying device according to claim 5, characterized in that: An air outlet (12) is provided on the side wall of the drying cylinder (1), and an opening and closing door (11) is hinged to the front side of the drying cylinder (1). The position of the air outlet (12) corresponds to the work position when the placement component (8) is being dried.

7. A Cordyceps sinensis drying device according to claim 6, characterized in that: The upper and lower output ends of the dual-axis servo motor (3) rotate at the same speed. The dual-axis servo motor (3) is configured to stop after rotating 180 degrees each time. When the dual-axis servo motor (3) drives the rocker arm (41) to rotate 180 degrees, the sliding shaft (42) drives the sliding frame (43) and the rack (44) to move one stroke in a straight line, driving the first gear (47) meshing with the rack (44) to rotate 90 degrees. When the dual-axis servo motor (3) drives the rocker arm (41) to continue rotating 180 degrees, the rack (44) moves in the opposite direction to reset, driving the first gear (47) to rotate in the opposite direction by 90 degrees back to the initial angle.

8. The Cordyceps sinensis drying device according to claim 7, characterized in that: When the dual-axis servo motor (3) rotates 180 degrees for the first time, the stepped heat distribution component (5) is driven to swing 90 degrees through the reciprocating swing mechanism (4), and at the same time, the rotating rod (64) is driven to rotate 90 degrees in the same direction through the synchronous circumferential following mechanism (6). During the rotation of the rotating rod (64) by 90 degrees, the placement component (8) is driven to rotate 180 degrees relative to the rotating rod (64) through the circulating face-changing mechanism (7), so that the placement component (8) completes the face-changing relative to the stepped heat distribution component (5).

9. A Cordyceps sinensis drying device according to claim 8, characterized in that: When in the initial drying position, the space between the high temperature end of the vortex tube (51) and the baffle plate (54) is directly opposite the outer ring insect body position of one of the placement components (8), and the low temperature end of the low temperature tube (52) is directly opposite the central grass head position of the other placement component (8).

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