Method and device for drying powdered Chinese medicine

Abstract

The application discloses a powder traditional Chinese medicine drying method and device, relates to the technical field of drying, and comprises a conveying device, a plurality of soft cloths arranged along the conveying direction of the conveying belt of the conveying device, a shell arranged on the upper side of the conveying device and covering the middle part of the conveying device, a discharging mechanism arranged at the head of the conveying device and used for uniformly distributing the powder traditional Chinese medicine on the soft cloths, and a heater installed on the inner wall of the shell and used for heating the inside of the shell to dry the powder traditional Chinese medicine. The powder traditional Chinese medicine is thrown upwards by the throwing mechanism, is dispersed in the air, and is promoted to quickly disperse water vapor, so that the problems of poor heat dissipation and uneven heat distribution of the existing drying device are effectively solved, local overheating or uneven heating of the medicinal materials is avoided, and the medicinal effect is protected.

Description

Technical Field

[0001] The present invention relates to the technical field of drying, and in particular to a method and device for drying powdered traditional Chinese medicine. Background Art

[0002] Dendrobium officinale, an important medicinal ingredient in traditional Chinese medicine, often requires drying during its preparation to remove moisture, extend its shelf life, and maintain its efficacy. Powdered Dendrobium officinale, in particular, has fine particles and a large surface area, placing high demands on the drying process. Rapid and uniform drying must be achieved while maintaining efficacy. Therefore, the powdered Dendrobium officinale needs to be baked. Existing drying devices for baking powdered Dendrobium officinale mainly include hot air circulation drying, vacuum drying, and microwave drying. These devices meet the basic requirements for baking and drying Dendrobium officinale to a certain extent, but still have some shortcomings in practical applications.

[0003] Existing drying devices for baking powdered medicines generally have the problem of poor heat dissipation. Specifically, during the drying process, the heat distribution inside the device is uneven, and the temperature in some areas is too high, which may cause uneven heating of the medicinal materials, thereby affecting the efficacy of the medicine or causing local overheating and deterioration of the medicinal materials. In addition, poor heat dissipation will also lead to heat accumulation inside the device, reducing the operating efficiency of the equipment, increasing energy consumption, and even shortening the service life of the equipment. Due to the characteristics of powdered Chinese medicines and their poor fluidity, traditional drying devices are prone to material accumulation and uneven heating during the processing process, further exacerbating the severity of the heat dissipation problem. Summary of the Invention

[0004] The object of the present invention is to provide a method and device for drying powdered Chinese medicines, which solves the problem of poor heat dissipation commonly found in existing drying devices for powdered Chinese medicines.

[0005] The present invention solves the above-mentioned technical problems through the following technical solutions, which include:

[0006] A transmission device, wherein a conveyor belt of the transmission device has a plurality of soft cloths arranged along its transmission direction;

[0007] A housing, the housing being disposed on the upper side of the transmission device and covering the middle portion of the transmission device;

[0008] A discharge mechanism, which is provided at the head of the transmission device and is used to evenly spread the powdered Chinese medicine onto the soft cloth;

[0009] A heater is mounted on the inner wall of the housing and is used to heat the interior of the housing to dry the powdered medicine;

[0010] Multiple throwing mechanisms are evenly arranged along the length direction of the transmission equipment. They are used to bounce the soft cloth and throw the powdered Chinese medicine scattered on the soft cloth into the air to achieve the dispersion of water vapor and the redistribution of the powdered Chinese medicine.

[0011] Preferably, the conveyor belt of the transmission equipment further comprises two rubber strips arranged in parallel, a plurality of spacers are fixed between the two rubber strips, and a single soft cloth is installed between two adjacent spacers.

[0012] Preferably, the throwing mechanism includes a rotating shaft rotatably mounted on the inner wall of the housing through two mounting seats, two symmetrically arranged discs are fixed on the rotating shaft, and a plurality of arc-shaped shifting blocks are mounted on the outer sides of the discs, and the arc-shaped shifting blocks are eccentrically arranged with respect to the rotating shaft, and the ends of the arc-shaped shifting blocks close to the rotational forward direction of the discs are arranged radially outward of the discs;

[0013] A vertical rod is slidably mounted on each of the two mounting seats via a sliding sleeve, a frame is fixed to the upper ends of the two vertical rods, a roller is mounted on the lower ends of the vertical rods, and a spring is installed between the frame and the sliding sleeve;

[0014] The rotating shaft is driven to rotate by a driving member.

[0015] Preferably, the driving member includes a stepper motor fixed to a mounting seat and a first spur gear fixed to a rotating shaft, and a second spur gear meshingly connected to the first spur gear is fixed to an output end of the stepper motor.

[0016] Preferably, the end of the arc-shaped shift block close to the rotational forward direction of the disc is rotatably connected to the disc via a first rotating shaft;

[0017] The outer side of the rotating shaft is threadedly connected to a rotating drum, and both ends of the rotating drum are equipped with external gear rings. A first half gear meshing with the rotating drum is fixed on the first rotating shaft, and a rubber ring is installed on the side of one of the discs close to the rotating drum, and the rotating drum abuts against the rubber ring.

[0018] Preferably, both sides of the conveyor belt of the transmission equipment are provided with side shielding mechanisms installed on the inner wall of the shell, and the side shielding mechanism includes an inclined frame fixed to the inner wall of the shell, and an elastic cloth is provided in the middle position of the inclined frame, and a horizontal bar is provided on the lower surface of the elastic cloth. The horizontal bar is connected to the rotating shaft of one of the throwing mechanisms through a trigger member to realize intermittent bouncing of the elastic cloth.

[0019] Preferably, the trigger member includes a fixed block fixed to the end of the rotating shaft, the outer end of the fixed block is fixed with a bent block; the inner wall of the shell is fixed with a horizontal plate, the horizontal bar is fixed with a flexible wide strip, the flexible wide strip slides through the horizontal plate and is fixed with an L-shaped block;

[0020] When the bending block rotates from top to bottom, the bending block hooks the L-shaped block and pulls the elastic cloth through the soft wide strip to deform and store force; when the L-shaped block is not constrained by the bending block, the elastic cloth rebounds to realize the bounce of the powdered Chinese medicine on the elastic cloth onto the conveyor belt of the transmission equipment.

[0021] Preferably, the discharge mechanism comprises a hopper mounted on the transmission equipment, and the lower end of the hopper has a discharge port arranged along its length direction;

[0022] A switch plate that blocks the discharge port is provided on the side of the hopper, and a first linear motor that drives the displacement of the switch plate is fixed on the hopper to control the discharge opening and closing and discharge size of the powdered medicine in the hopper.

[0023] Preferably, a toggle member is provided at the discharge port, the toggle member includes an elongated through hole opened along the length direction of the hopper, a slide is slidably provided at the bottom of the hopper to cover the elongated through hole, a plurality of toggle bars are rotatably mounted on the slide via a second rotating shaft, a second half gear is fixed at the bottom of each of the plurality of second rotating shafts, a rack meshing with the plurality of second half gears is slidably mounted at the bottom of the hopper, and a second linear motor driving the rack to slide is installed at the bottom of the hopper;

[0024] Both ends of the slide plate have protrusions, and both ends of the rack respectively correspond to the two protrusions, and the length of the rack is smaller than the length of the slide plate.

[0025] The present invention also provides a method using a powdered Chinese medicine drying device, comprising the following steps:

[0026] Step 1: Preheating: Start the heater to heat the inside of the shell to the set temperature;

[0027] Step 2: Spreading the powdered Chinese medicine: The powdered Chinese medicine is evenly spread on the conveyor belt of the transmission device through the discharging mechanism, and the powdered Chinese medicine will enter the shell along with the transmission device;

[0028] Step 3: Toss the powdered Chinese medicine: Toss the powdered Chinese medicine on the soft cloth upwards through the throwing mechanism, so that the water vapor in the powdered Chinese medicine is quickly dispersed, and the powdered Chinese medicine falls back onto the soft cloth to achieve redistribution.

[0029] Compared with the prior art, the beneficial effects of the present invention are: the powdered Chinese medicine is thrown upward by the throwing mechanism, so that it is dispersed in the air, which promotes the rapid dissipation of water vapor, effectively solves the problems of poor heat dissipation and uneven heat distribution of the existing drying device, avoids local overheating or uneven heating of the medicinal materials, and protects the efficacy of the medicine.

[0030] The throwing mechanism re-scatters the powdered Chinese medicine on the soft cloth by bouncing the soft cloth, avoiding material accumulation, enhancing the uniform heating effect during the drying process, and improving the drying quality.

[0031] The side shielding mechanism uses the intermittent bouncing of elastic cloth to bounce the powdered medicine that may be scattered to both sides during the throwing process back to the conveyor belt, reducing material waste and maintaining uniform distribution.

[0032] The discharge mechanism pushes the powdered Chinese medicine through the toggle to ensure that it is discharged smoothly and evenly from the hopper, solving the problem of agglomeration or intermittent discharge caused by moisture and improving the discharge efficiency.

[0033] Through the coordinated action of the throwing mechanism and the side shielding mechanism, the water vapor dissipation is accelerated, the drying time is shortened, the energy consumption is reduced, and the heat utilization is optimized, thereby extending the service life of the equipment.

[0034] The angle of the arc-shaped shifting block in the throwing mechanism is adjustable, which can adjust the throwing force according to the characteristics of different medicinal materials and enhance the adaptability of the device to different powdered Chinese medicines. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0036] Figure 2 It is a schematic diagram of the main view cross-sectional plane structure;

[0037] Figure 3 Schematic diagram of the planar structure of the throwing mechanism and the side shielding mechanism in the present invention;

[0038] Figure 4 It is a partial three-dimensional structural diagram of the throwing mechanism and the side shielding mechanism in the present invention;

[0039] Figure 5 Schematic diagram of the three-dimensional structure of the throwing mechanism in the present invention;

[0040] Figure 6 for Figure 5 A in the middle is an enlarged structural diagram;

[0041] Figure 7 It is a partial three-dimensional structural diagram of the throwing mechanism in the present invention;

[0042] Figure 8 for Figure 7 A schematic diagram of a planar cross-sectional structure from a first perspective;

[0043] Figure 9 for Figure 7 A schematic diagram of a planar cross-sectional structure from a second perspective;

[0044] Figure 10It is a structural schematic diagram of the conveyor belt of the transmission equipment in the present invention;

[0045] Figure 11 This is a schematic diagram of the three-dimensional structure of the discharge mechanism of the present invention from a first viewing angle;

[0046] Figure 12 This is a schematic diagram of the three-dimensional structure of the discharge mechanism of the present invention from a second viewing angle;

[0047] Figure 13 Schematic diagram of the three-dimensional structure of the discharge mechanism of the present invention from the third viewing angle;

[0048] Figure 14 It is a schematic diagram of the planar structure of the discharge mechanism in the present invention.

[0049] The numbers in the figure represent:

[0050] 1-housing; 2-transmission device; 21-rubber strip; 22-spacer; 23-soft cloth; 3-discharging mechanism; 31-hopper; 32-discharging port; 33-switch plate; 34-first linear motor; 351-slide plate; 352-shift bar; 353-second half gear; 354-rack; 355-second linear motor; 4-heater; 5-throwing mechanism; 511-stepping motor; 512-second spur gear; 513-first spur gear Wheel; 52-rotating shaft; 53-frame; 54-vertical rod; 55-spring; 56-roller; 57-disc; 58-arc-shaped shift block; 591-first half gear; 592-outer gear ring; 593-rotating drum; 594-chute; 595-rubber ring; 6-side shielding mechanism; 61-oblique frame; 62-elastic cloth; 63-horizontal bar; 64-soft wide bar; 65-L-shaped block; 66-fixed block; 67-bending block; 68-horizontal plate. DETAILED DESCRIPTION

[0051] The above and other technical features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.

[0052] Example 1: This embodiment provides a technical solution: a powdered Chinese medicine drying device, such as Figures 1 to 10 As shown, it includes a transmission device 2, a shell 1, a discharge mechanism 3, a heater 4 and a plurality of throwing mechanisms 5. The shell 1 is arranged on the upper side of the transmission device 2, and the shell 1 covers the middle position of the transmission device 2 to set a relatively closed internal space on the transmission device 2. A skylight is opened on the top of the shell 1, and a filter is provided on the skylight to achieve the dissipation of water vapor evaporated from the inside of the powdered Chinese medicine through the skylight; the heater 4 is installed on the inner wall of the shell 1, and is used to heat the inside of the shell 1 to achieve the drying of the powdered Chinese medicine. The heater 4 can be a heating rod. The discharge mechanism 3 is arranged at the head of the transmission of the transmission device 2, and is used to evenly spread the powdered Chinese medicine on the soft cloth 23.

[0053] In the embodiment, the structure of the conveying device 2 can be selected from suitable models and types, and it is necessary to note that the conveying belt of the conveying device 2 needs to be designed accordingly, which specifically includes two rubber strips 21 arranged side by side, a plurality of partition strips 22 arranged along the conveying direction between the two rubber strips 21, and a soft cloth 23 arranged between adjacent two partition strips 22, so that the adjacent two soft cloths 23 will not affect each other.

[0054] A plurality of material throwing mechanisms 5 are uniformly arranged along the length direction of the conveying device 2, which are used to bounce the soft cloth 23 and throw the powdery traditional Chinese medicine on the soft cloth 23 into the air to realize the diffusion of water vapor and the redistribution of the powdery traditional Chinese medicine. The material throwing mechanism 5 includes a rotating shaft 52 rotatably arranged on the inner wall of the shell 1 through two mounting seats, and the rotating shaft 52 is located between the upper and lower layers of the conveying belt. The rotating shaft 52 is driven to rotate by a driving member, and two symmetrically arranged discs 57 are fixed on the rotating shaft 52. A plurality of arc-shaped blocks 58 are arranged on the outer side of the disc 57, and the arc-shaped blocks 58 are eccentrically arranged with the rotating shaft 52. Referring to Figure 9 The end of the arc-shaped block 58 close to the rotating forward direction of the disc 57 is arranged radially outward of the disc 57. A vertical rod 54 is slidably arranged on each of the two mounting seats through a sliding sleeve. The upper ends of the two vertical rods 54 are fixedly connected to a frame 53. The frame 53 can be in a strip-shaped, frame-shaped or plate-shaped structure to ensure stability and collision effect. A roller 56 is arranged on the lower end of the vertical rod 54, and the roller 56 is arranged corresponding to the arc-shaped block 58. A spring 55 is arranged between the frame 53 and the sliding sleeve, which gives the frame 53 an upward displacement force.

[0055] When in use, the driving member drives the rotating shaft 52 to rotate, and the arc-shaped shifting block 58 contacts the roller 56. As the disc 57 rotates further, and because the arc-shaped shifting block 58 is eccentrically arranged with respect to the rotating shaft 52, the arc-shaped shifting block 58 pushes the roller 56 toward the center of the rotating shaft 52, further displacing the frame 53 downward and compressing the spring 55. When the roller 56 is no longer in contact with the corresponding arc-shaped shifting block 58, the roller 56 is freed from the constraint of the arc-shaped shifting block 58, and the frame 53 moves rapidly due to the elastic force of the spring 55, and the frame 53 collides with the soft cloth 23. Due to the transmission of the force, the powder on the soft cloth 23 is The powdered Chinese medicine moves upward to achieve the effect of throwing the powdered Chinese medicine upward, and then the powdered Chinese medicine will fall back onto the soft cloth 23 due to gravity, and the frame 53 will move downward due to the squeezing of the next arc-shaped dial block 58, preparing for the next operation; in this process, when the powdered Chinese medicine is in the air, the powdered Chinese medicine will be more dispersed, and the water vapor in the powdered Chinese medicine will be promoted to dissipate, thereby increasing the efficiency of drying the powdered Chinese medicine. At the same time, when the powdered Chinese medicine falls onto the soft cloth 23, the powdered Chinese medicine will be redistributed, realizing the turning of the powdered Chinese medicine, and avoiding uneven heating of the powdered Chinese medicine.

[0056] Furthermore, the driving member includes a stepper motor 511 fixed to the mounting base and a first spur gear 513 fixed to the rotating shaft 52. The output end of the stepper motor 511 is fixed with a second spur gear 512 meshing with the first spur gear 513. In other embodiments, other driving member structures suitable for this embodiment can also be used. When the stepper motor 511 is running, the second spur gear 512 cooperates with the first spur gear 513 to drive the rotating shaft 52 to rotate.

[0057] Example 2: This example is further optimized based on Example 1, and the same parts as the above technical solutions will not be repeated here. Figure 3 and Figure 6 As shown, in order to adjust the impact force of the frame 53 on the soft cloth 23, the arc-shaped shift block 58 is configured to be flippable in this embodiment, and the following configuration is further adopted:

[0058] In this embodiment, the end of the arc-shaped shift block 58 close to the rotational forward direction of the disc 57 is rotatably connected to the disc 57 through a first rotating shaft; the outer side of the rotating shaft 52 is threadedly connected to a rotating cylinder 593, and the outer circumferential surface of the rotating cylinder 593 is provided with anti-slip grooves. Both ends of the rotating cylinder 593 are equipped with external gear rings 592, and a first half gear 591 meshing with the rotating cylinder 593 is fixed on the first rotating shaft. A rubber ring 595 is installed on one side of one of the discs 57 close to the rotating cylinder 593, and the rotating cylinder 593 always maintains a certain force against the rubber ring 595 to ensure that the rotating cylinder 593 is not easily rotated.

[0059] In order to prevent relative displacement between the first half gear 591 and the outer ring gear 592, the outer ring gear 592 and the rotating drum 593 are slidingly connected. Specifically, a sliding groove 594 is opened on the outer side of the rotating drum 593, and a slider slidingly installed in the sliding groove 594 is fixed on the inner wall of the outer ring gear 592. Therefore, when the rotating drum 593 is rotated, the outer ring gear 592 will remain unchanged and the rotating drum 593 will move.

[0060] During use, by rotating the drum 593 to a certain angle, which can be within 10°, the outer gear ring 592 and the first half gear 591 cooperate to realize the angle flipping of the arc-shaped shift block 58 and adjust the distance between the free end of the arc-shaped shift block 58 and the center of the rotating shaft 52.

[0061] Example 3: This example is further optimized based on Example 1, and the same parts as the above technical solutions will not be repeated here. Figure 3 and Figure 6 As shown, since the powdered medicine may be ejected to both sides by the throwing mechanism 5, resulting in waste, the following setting is further adopted:

[0062] In this embodiment, side shielding mechanisms 6 installed on the inner wall of the shell 1 are provided on both sides of the conveyor belt of the transmission equipment 2. The number of side shielding mechanisms 6 on one side is determined according to the length of the shell 1, and multiple side shielding mechanisms 6 are sealed and docked. The side shielding mechanism 6 includes an inclined frame 61 fixed to the inner wall of the shell 1, and an elastic cloth 62 is provided in the middle position of the inclined frame 61. The lower surface of the elastic cloth 62 is provided with a horizontal bar 63. The horizontal bar 63 is provided along the entire section of the elastic cloth 62. The horizontal bar 63 is connected to the rotating shaft 52 of one of the throwing mechanisms 5 through a trigger member to realize intermittent bouncing of the elastic cloth 62.

[0063] The trigger member includes a fixed block 66 fixed to the end of the rotating shaft 52, and a bent block 67 is fixed to the outer end of the fixed block 66, and the opening of the bent block 67 is facing the side of the rotation direction of the fixed block 66; a horizontal plate 68 is fixed to the inner wall of the shell 1, and a flexible wide strip 64 is fixed to the horizontal bar 63. The flexible wide strip 64 slides through the horizontal plate 68 and is fixed with an L-shaped block 65. The horizontal part of the L-shaped block 65 and the bent block 67 are located on the same circular motion trajectory.

[0064] When the fixed block 66 rotates with the rotating shaft 52 and the bending block 67 rotates to the uppermost side, the bending block 67 can contact the lateral part of the L-shaped block 65 and hook the soft wide strip 64. Then, when the bending block 67 rotates from top to bottom, since the bending block 67 hooks the L-shaped block 65, the soft wide strip 64 will be pulled downward, and the elastic cloth 62 will be pulled and deformed to store force and bend downward; when the bending block 67 rotates to the lower side, the bending block 67 cannot restrain the L-shaped block 65, the elastic cloth 62 will rebound due to its own elasticity, so as to realize the ejection of the powdered Chinese medicine on the elastic cloth 62 onto the conveyor belt of the transmission equipment 2. Since the powdered Chinese medicine is ejected, it will be dispersed and will fall more evenly onto the conveyor belt of the transmission equipment 2 to prevent accumulation.

[0065] Example 4: This example is further optimized based on Example 1, and the same parts as the above technical solutions will not be repeated here. Figure 1 、 Figure 11 、 Figure 12 、 Figure 13 and Figure 14 As shown, since the powdered Chinese medicine itself may have a certain degree of moisture, the powdered Chinese medicine has the problem of agglomeration or intermittent discharge in the discharge mechanism 3, the following setting method is further adopted:

[0066] In this embodiment, the discharge mechanism 3 includes a hopper 31 installed on the transmission equipment 2. The bottom of the hopper 31 is inclined to ensure that the powdered medicine can be discharged smoothly and completely. The lower end of the hopper 31 has a discharge port 32 arranged along its length direction, and the discharge port 32 is located on the side close to the shell 1.

[0067] Furthermore, a switch plate 33 is provided on the side of the hopper 31 to block the discharge port 32. The switch plate 33 is arranged to slide vertically, and a first linear motor 34 is fixed on the hopper 31 to drive the switch plate 33 to move. By running the first linear motor 34, the discharge opening and closing and discharge size of the powdered medicine in the hopper 31 can be controlled. That is, when the switch plate 33 is driven downward by the first linear motor 34 and the switch plate 33 completely blocks the discharge port 32, the discharge port 32 can be closed to prevent the powdered medicine in the hopper 31 from being discharged. In addition, if the discharge rate of the powdered medicine needs to be adjusted, it can be determined by the height to which the switch plate 33 is driven downward by the first linear motor 34.

[0068] A toggle member is provided at the discharge port 32, and the toggle member is located at an upper position of the discharge port 32. The toggle member includes an elongated through hole opened along the length direction of the hopper 31. A slide plate 351 is slidingly provided at the bottom of the hopper 31 to cover the elongated through hole. The length and width of the slide plate 351 are both larger than the size of the elongated through hole, which can prevent the powdered Chinese medicine in the hopper 31 from falling out through the elongated through hole. A plurality of toggle bars 352 are rotatably installed on the slide plate 351 through a second rotating shaft. The plurality of toggle bars 352 are all located in the hopper 31 and in contact with the inclined bottom of the hopper 31.

[0069] A second half gear 353 is fixed at the bottom of each of the multiple second rotating shafts, and a rack 354 that is meshed with the multiple second half gears 353 is slidably installed at the bottom of the hopper 31, and a second linear motor 355 that drives the rack 354 to slide is installed at the bottom of the hopper 31. When the second linear motor 355 is running, the multiple shift bars 352 can be driven to rotate the rotating shaft to a certain angle through the cooperation between the rack 354 and the second half gear 353.

[0070] Both ends of the slide plate 351 have protrusions, and both ends of the rack 354 correspond to the two protrusions respectively. The length of the rack 354 is smaller than the length of the slide plate 351 .

[0071] It should be noted that the force required to drive the rack 354 to move and drive the shift bar 352 to rotate a certain angle is smaller than the force required to drive the slide plate 351 to move.

[0072] When in use, the telescopic end of the second linear motor 355 is extended, first driving the rack 354 to move a certain distance, and then driving multiple selectors 352 to flip a certain angle, and at this time the end of the rack 354 contacts the raised portion of the slide 351. When the telescopic end of the second linear motor 355 continues to extend, since the rack 354 abuts against the raised portion of the slide 351, the two will move synchronously, and the selector 352 will not rotate the angle, but move to the corresponding side. At this time, since the upper end of the selector 352 is facing the direction of its displacement, the powdered Chinese medicine at the bottom of the hopper 31 can be pushed and dialed downward, driving the powdered Chinese medicine in the hopper 31 to be discharged smoothly downward, avoiding the problem of agglomeration or intermittent discharge of the powdered Chinese medicine; then, when the telescopic end of the second linear motor 355 is retracted, the inclination direction of the selector 352 is adjusted automatically, and the displacement direction of the slide 351 and the rack 354 is also adjusted accordingly.

[0073] The above description is merely a preferred embodiment of the present invention and is intended to be illustrative rather than restrictive of the present invention. Those skilled in the art will appreciate that many changes, modifications, and even equivalents may be made to the present invention within the spirit and scope of the claims, all of which fall within the scope of protection of the present invention.

Claims

1. A powdered Chinese medicine drying device, characterized in that: include: A transmission device (2), wherein a conveyor belt of the transmission device (2) has a plurality of soft cloths (23) arranged along its transmission direction; A housing (1), the housing (1) being arranged on the upper side of the transmission device (2), and the housing (1) covering the middle portion of the transmission device (2); A discharge mechanism (3), the discharge mechanism (3) being arranged at the head of the transmission device (2) and being used for evenly distributing powdered Chinese medicine onto the soft cloth (23); A heater (4), the heater (4) being mounted on the inner wall of the housing (1) and used to heat the interior of the housing (1) to achieve drying of the powdered medicine; A plurality of throwing mechanisms (5) are evenly arranged along the length direction of the transmission device (2), and are used to bounce the soft cloth (23) and throw the powdered Chinese medicine scattered on the soft cloth (23) into the air, so as to achieve the dispersion of water vapor and the redistribution of the powdered Chinese medicine; The throwing mechanism (5) includes a rotating shaft (52) rotatably mounted on the inner wall of the housing (1) via two mounting seats, the rotating shaft (52) is driven to rotate by a driving member, two symmetrically arranged discs (57) are fixed on the rotating shaft (52), and a plurality of arc-shaped shifting blocks (58) are mounted on the outer side of the disc (57), and the arc-shaped shifting blocks (58) are eccentrically arranged with respect to the rotating shaft (52), and the ends of the arc-shaped shifting blocks (58) close to the rotational forward direction of the disc (57) are arranged radially outward of the disc (57); A vertical rod (54) is slidably mounted on each of the two mounting seats via a sliding sleeve, a frame (53) is fixed to the upper ends of the two vertical rods (54), a roller (56) is mounted on the lower ends of the vertical rods (54), and a spring (55) is installed between the frame (53) and the sliding sleeve; The end of the arc-shaped shifting block (58) close to the rotational forward direction of the disc (57) is rotatably connected to the disc (57) via a first rotating shaft; The outer side of the rotating shaft (52) is threadedly connected to a rotating cylinder (593), and both ends of the rotating cylinder (593) are equipped with external gear rings (592). A first half gear (591) meshing with the rotating cylinder (593) is fixed on the first rotating shaft, and a rubber ring (595) is installed on one side of one of the discs (57) close to the rotating cylinder (593), and the rotating cylinder (593) is in contact with the rubber ring (595).

2. The powdered Chinese medicine drying device according to claim 1, characterized in that: The conveyor belt of the transmission device (2) further comprises two rubber strips (21) arranged in parallel, a plurality of spacer strips (22) are fixed between the two rubber strips (21), and a single soft cloth (23) is installed between two adjacent spacer strips (22).

3. The powdered Chinese medicine drying device according to claim 1, characterized in that: The driving member comprises a stepping motor (511) fixed to a mounting seat and a first spur gear (513) fixed to a rotating shaft (52); a second spur gear (512) meshingly connected to the first spur gear (513) is fixed to an output end of the stepping motor (511).

4. The powdered Chinese medicine drying device according to claim 1, characterized in that: Both sides of the conveyor belt of the transmission device (2) are provided with side shielding mechanisms (6) installed on the inner wall of the shell (1), and the side shielding mechanism (6) includes an inclined frame (61) fixed to the inner wall of the shell (1), and an elastic cloth (62) is provided at the middle position of the inclined frame (61), and a horizontal bar (63) is provided on the lower surface of the elastic cloth (62), and the horizontal bar (63) is connected to the rotating shaft (52) of one of the throwing mechanisms (5) through a trigger member to achieve intermittent bouncing of the elastic cloth (62).

5. The powdered Chinese medicine drying device according to claim 4, characterized in that: The trigger member comprises a fixed block (66) fixed to the end of the rotating shaft (52), and a bent block (67) is fixed to the outer end of the fixed block (66); a transverse plate (68) is fixed to the inner wall of the housing (1), and a flexible wide strip (64) is fixed to the transverse strip (63), and the flexible wide strip (64) slides through the transverse plate (68) and is fixed with an L-shaped block (65); When the bending block (67) rotates from top to bottom, the bending block (67) hooks the L-shaped block (65) and pulls the elastic cloth (62) through the soft wide strip (64) to deform and store force; when the L-shaped block (65) is no longer constrained by the bending block (67), the elastic cloth (62) rebounds, so that the powdered Chinese medicine on the elastic cloth (62) is ejected onto the conveyor belt of the transmission device (2).

6. The powdered Chinese medicine drying device according to claim 1, characterized in that: The discharge mechanism (3) comprises a hopper (31) mounted on the transmission device (2), and the lower end of the hopper (31) has a discharge port (32) arranged along its length direction; A switch plate (33) for shielding the discharge port (32) is provided on the side of the hopper (31), and a first linear motor (34) for driving the switch plate (33) to move is fixed on the hopper (31) to achieve control of the discharge opening and closing and the discharge size of the powdered medicine in the hopper (31).

7. The powdered Chinese medicine drying device according to claim 6, characterized in that: A toggle member is provided at the discharge port (32), the toggle member comprising an elongated through hole opened along the length direction of the hopper (31), a slide plate (351) is slidably provided at the bottom of the hopper (31) to cover the elongated through hole, a plurality of toggle bars (352) are rotatably mounted on the slide plate (351) via a second rotating shaft, a second half gear (353) is fixed at the bottom of each of the plurality of second rotating shafts, a rack (354) meshingly connected to the plurality of second half gears (353) is slidably mounted at the bottom of the hopper (31), and a second linear motor (355) is installed at the bottom of the hopper (31) to drive the rack (354) to slide; Both ends of the slide plate (351) have protrusions, and both ends of the rack (354) correspond to the two protrusions respectively, and the length of the rack (354) is smaller than the length of the slide plate (351).

8. A method using the powdered Chinese medicine drying device according to claim 1, characterized in that: The following steps are involved: Step 1: Preheating: Start the heater (4) to heat the interior of the housing (1) to a set temperature; Step 2: Spreading the powdered Chinese medicine: The powdered Chinese medicine is evenly spread on the conveyor belt of the transmission device (2) through the discharge mechanism (3), and the powdered Chinese medicine enters the interior of the housing (1) along with the transmission device (2); Step 3: Tossing the powdered Chinese medicine: The powdered Chinese medicine on the soft cloth (23) is tossed upward by the throwing mechanism (5), so that the water vapor in the powdered Chinese medicine is quickly dispersed, and the powdered Chinese medicine falls back onto the soft cloth (23), thereby achieving redistribution.

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