CN220959359U

CN220959359U - A heated air circulation oven for chinese-medicinal material processing

Info

Publication number: CN220959359U
Application number: CN202322689033.9U
Authority: CN
Inventors: 何超; 何维刚
Original assignee: Nanjing Weigang Machinery Technology Co ltd
Current assignee: Nanjing Weigang Machinery Technology Co ltd
Priority date: 2023-10-08
Filing date: 2023-10-08
Publication date: 2024-05-14
Anticipated expiration: 2033-10-08

Abstract

The utility model discloses a hot air circulation oven for processing traditional Chinese medicinal materials, which comprises a box body, a box door, guide plates, a heat exchanger, a rotating mechanism and a wind supplementing machine, wherein the guide plates comprise two vertical plates which are arranged at intervals with the front side wall and the rear side wall of the box body, the tops of the two vertical plates are provided with transverse plates, a plurality of air inlet holes are uniformly distributed on the two vertical plates, a drying chamber is formed between the guide plates and the bottom wall and the side wall of the box body, the rotating mechanism comprises a rotating motor arranged on the outer wall of the drying chamber, the output end of the rotating motor penetrates through the box body and is in transmission connection with a first rotating shaft, and the end part of the first rotating shaft is provided with a 匚 -shaped supporting frame and a charging barrel; according to the utility model, the charging barrel is driven to rotate by the rotating motor, and the second rotating shaft drives the rotating rod to rotate by the belt while the charging barrel rotates, so that the charging barrel rotates while rotating, and Chinese medicinal materials in the charging barrel can be fully turned over, so that the Chinese medicinal materials are heated more uniformly.

Description

A heated air circulation oven for chinese-medicinal material processing

Technical Field

The utility model relates to the technical field of medicine drying, in particular to a hot air circulation oven for processing traditional Chinese medicinal materials.

Background

The traditional Chinese medicine materials refer to natural medicines and processing substitutes thereof which are used for preventing and treating diseases and have rehabilitation and health care effects by taking the theory of traditional Chinese medicine as guidance, and many traditional Chinese medicine materials can be sliced, diced or split after being dried, and if the traditional Chinese medicine materials cannot be sufficiently dried in the drying operation, the traditional Chinese medicine materials can cause the mildewing of the medicine materials, and the medicine effect is affected.

Generally, the traditional Chinese medicine is dried by hot air, in the prior art, the traditional Chinese medicine raw materials are usually placed in a drying rack, hot air is introduced into the drying rack for drying, but in the actual drying process, a large amount of traditional Chinese medicine raw materials are often accumulated on the drying rack, so that the traditional Chinese medicine raw materials in the middle and bottom positions can not be fully dried all the time, the phenomenon that the traditional Chinese medicine materials are heated unevenly is easily caused, and the medicine effect is greatly influenced.

Disclosure of utility model

The utility model aims to solve the problem that the traditional Chinese medicinal materials cannot be sufficiently dried in the prior art.

In order to solve the technical problems, the utility model provides the following technical scheme: a heated air circulation oven for chinese-medicinal material processing, it includes box, chamber door, guide plate, heat exchanger, slewing mechanism to and the air supplement machine, the guide plate includes two risers that side wall interval set up around with the box, and the top of two risers sets up the diaphragm, and two riser equipartitions have a plurality of fresh air inlets, form the drying chamber between guide plate and box diapire and the lateral wall, slewing mechanism is including setting up in the rotating electrical machines of drying chamber outer wall, rotating electrical machines's output runs through behind the box with first slewing axis transmission is connected, the tip of first slewing axis is provided with 匚 shape support frames and charging basket, the chamber door side is provided with the handle.

As a preferable scheme of the hot air circulation oven for processing the traditional Chinese medicinal materials, the utility model comprises the following steps: a left air channel is formed between the vertical plate and the left side wall of the box body, a right air channel is formed between the vertical plate and the right side wall of the box body, an upper air channel is formed between the transverse plate and the top wall of the box body, the heat exchanger is arranged in the left air channel, and the air supplementing machine is arranged on the outer wall corresponding to the upper air channel of the box body.

As a preferable scheme of the hot air circulation oven for processing the traditional Chinese medicinal materials, the utility model comprises the following steps: the charging basket comprises a charging basket body, a charging basket top, a charging hole, a cover plate and a locking assembly, wherein a plurality of through holes are uniformly distributed in the circumferential direction of the outer surface wall of the charging basket body, the top end of the charging basket body is provided with the charging hole, the charging hole is hinged with the cover plate, and the top end of the cover plate is connected with the top end of the charging basket body through the locking assembly.

As a preferable scheme of the hot air circulation oven for processing the traditional Chinese medicinal materials, the utility model comprises the following steps: the locking assembly comprises a first mounting block arranged on the outer side of the cover plate, a second mounting block is arranged at the position, corresponding to the first mounting block, of the top end of the charging barrel, a first mounting hole is formed in the side wall of the first mounting block, a second mounting hole is formed in the position, corresponding to the first mounting hole, of the second mounting block, a plug pin is slidably inserted into the first mounting hole and the second mounting hole, a spring is fixed on one side of the second mounting block, facing the plug pin, and one end of the spring is fixed on the outer surface wall of the plug pin.

As a preferable scheme of the hot air circulation oven for processing the traditional Chinese medicinal materials, the utility model comprises the following steps: the heat exchanger is a plurality of groups of electric heating wires, and the heat exchanger is electrically connected with an external power supply.

As a preferable scheme of the hot air circulation oven for processing the traditional Chinese medicinal materials, the utility model comprises the following steps: the box top both sides have been seted up moisturizing mouth and have been seted up, the moisturizing mouth with the moisturizing fan is located same one side, the wet-discharging mouth department is provided with the wet-discharging fan.

As a preferable scheme of the hot air circulation oven for processing the traditional Chinese medicinal materials, the utility model comprises the following steps: the 匚 -shaped supporting frame comprises a supporting plate with the middle part fixed to the end of the first rotating shaft and a straight plate fixedly connected with the top end and the bottom end of the supporting plate, and the top end and the bottom end of the charging barrel are respectively connected with the two straight plates in a rotating mode through rotating rods.

As a preferable scheme of the hot air circulation oven for processing the traditional Chinese medicinal materials, the utility model comprises the following steps: the support plate is towards one side of the first rotating shaft is provided with a strip-shaped through groove, the middle of the strip-shaped through groove is provided with a bearing, two sides of the bearing are fixed with the side wall of the strip-shaped through groove through a fixed block, a second rotating shaft is rotatably arranged in an inner ring of the bearing, one end of the second rotating shaft is provided with a bevel gear, and the other end of the second rotating shaft is provided with a first gear.

As a preferable scheme of the hot air circulation oven for processing the traditional Chinese medicinal materials, the utility model comprises the following steps: the inner wall of the drying chamber is provided with an annular toothed plate, the first rotating shaft and the annular toothed plate have the same central shaft, and the annular toothed plate is meshed with the bevel gear.

As a preferable scheme of the hot air circulation oven for processing the traditional Chinese medicinal materials, the utility model comprises the following steps: the rotating rod near the first gear penetrates through the rear end part of the straight plate to be provided with a second gear, and a belt is arranged between the second gear and the first gear.

The utility model has the beneficial effects that: according to the utility model, the traditional Chinese medicinal materials are filled into the charging barrel, the charging barrel is driven to rotate clockwise or anticlockwise through the rotating motor, and the second rotating shaft drives the rotating rod to rotate through the belt while the charging barrel rotates, so that the charging barrel rotates, and the traditional Chinese medicinal materials in the charging barrel can be fully turned over through the rotation and autorotation of the charging barrel, so that the traditional Chinese medicinal materials are heated more uniformly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

FIG. 1 is a diagram of the whole structure of a hot air circulation oven for processing Chinese medicinal materials.

Fig. 2 is a schematic back view of a heated air circulation oven for processing of chinese herbal medicines.

Fig. 3 is a schematic diagram of the internal structure of a hot air circulation oven for processing Chinese medicinal materials.

Fig. 4 is a structural view of a rotating mechanism in a hot air circulation oven for processing Chinese medicinal materials.

Fig. 5 is another view of a rotating mechanism in a heated air circulation oven for processing of chinese herbal medicines.

Fig. 6 is a schematic diagram of the structure at a in fig. 5.

Fig. 7 is an assembly view of a 匚 -shaped support frame and a second rotating shaft in a heated air circulation oven for processing Chinese medicinal materials.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 to 7, in a first embodiment of the present utility model, a hot air circulation oven for processing Chinese medicinal materials is provided, the hot air circulation oven for processing Chinese medicinal materials includes a box body 1, a box door 2, a deflector 3, a heat exchanger 4, a rotating mechanism 5, and a blower 6, the Chinese medicinal materials are placed into the rotating mechanism 5, the air blown by the blower 6 is heated by the heat exchanger 4 and then blown to the rotating mechanism 5, and the rotating mechanism 5 turns over the Chinese medicinal materials, so that the Chinese medicinal materials are heated more uniformly.

Specifically, including box 1, chamber door 2, guide plate 3, heat exchanger 4, slewing mechanism 5, and air supplementing machine 6, guide plate 3 includes two riser 3a that side wall interval set up around with box 1, the top of two riser 3a sets up diaphragm 3b, two riser 3a equipartition has a plurality of fresh air inlets 3a-1, form drying chamber S between guide plate 3 and box 1 diapire and the lateral wall, slewing mechanism 5 is including setting up in the rotation motor 5a of drying chamber S outer wall, the output of rotation motor 5a runs through behind the box 1 with first slewing shaft 5b transmission connection, the tip of first slewing shaft 5b is provided with 匚 c and charging basket 5d, the chamber door 2 side is provided with handle 2a.

Preferably, a left air channel 1a is formed between the vertical plate 3a and the left side wall of the box body 1, a right air channel 1b is formed between the vertical plate 3a and the right side wall of the box body 1, an upper air channel 1c is formed between the transverse plate 3b and the top wall of the box body 1, the heat exchanger 4 is arranged in the left air channel 1a, and the air supplementing machine 6 is arranged on the outer wall of the box body 1 corresponding to the upper air channel 1 c.

The air blown by the air supplementing machine 6 is heated by the heat exchanger 4 arranged in the left air channel 1a and then blown into the drying chamber S through a plurality of air inlet holes 3a-1 uniformly distributed on the vertical plate 3 a.

Preferably, a plurality of through holes 5d-6 are circumferentially uniformly distributed on the outer surface wall of the charging barrel 5d, a feed inlet 5d-4 is formed in the top end of the charging barrel 5d, a cover plate 5d-5 is hinged to the feed inlet 5d-4, and the top end of the cover plate 5d-5 is connected with the top end of the charging barrel 5d through a locking assembly 8.

The hot air blown into the drying chamber S can enter the charging barrel 5d through a plurality of through holes 5d-6 on the outer surface wall of the charging barrel 5d to heat and dry the Chinese medicinal materials, and the Chinese medicinal materials can be poured into the drying chamber through the feeding hole 5d-4 by opening a cover plate 5d-5 at the top end of the charging barrel 5 d.

Preferably, the locking assembly 8 comprises a first mounting block 8a arranged on the outer side of the cover plate 5d-5, a second mounting block 8b is arranged at the position, corresponding to the first mounting block 8a, of the top end of the charging barrel 5d, a first mounting hole 8a-1 is formed in the side wall of the first mounting block 8a, a second mounting hole 8b-1 is formed in the position, corresponding to the first mounting hole 8a-1, of the second mounting block 8b, a plug pin 8c is inserted in the first mounting hole 8a-1 and the second mounting hole 8b-1 in a sliding manner, a spring 8d is fixed on one side, facing the plug pin 8c, of the second mounting block 8b, and one end of the spring 8d is fixed on the outer surface wall of the plug pin 8 c.

When the cover plate 5d-5 is required to be opened, the plug pins 8c are pulled outwards, so that the plug pins 8c are pulled out of the first mounting holes 8a-1 and the second mounting holes 8b-1, the cover plate 5d-5 is opened again, the plug pins 8c are loosened after the upper cover plate 5d-5 is closed, the plug pins 8c are inserted into the first mounting holes 8a-1 and the second mounting holes 8b-1 under the action of the elastic force of the springs 8d, the top ends of the cover plate 5d-5 and the charging bucket 5d are locked, and Chinese medicinal materials are prevented from leaking out.

Preferably, the heat exchanger 4 is a plurality of groups of electric heating wires, and the heat exchanger 4 is electrically connected with an external power supply.

Preferably, two sides of the top end of the box body 1 are provided with a water supplementing opening 1d and a moisture discharging opening 1e, the water supplementing opening 1d and the water supplementing fan 6 are positioned on the same side, and the moisture discharging opening 1e is provided with a moisture discharging fan 7.

When the humidity is too high due to evaporation of water in the Chinese medicinal materials in the box body 1, the moisture-discharging fan 7 can be turned on, and the moisture-discharging fan 7 discharges the water vapor in the box body 1 out of the box body 1

When the novel traditional Chinese medicine dryer is used, the plug pins 8c are pulled outwards, the plug pins 8c are pulled out of the first mounting holes 8a-1 and the second mounting holes 8b-1, the cover plate 5d-5 is opened, traditional Chinese medicines to be dried are poured into the drying chamber S through the feeding holes 5d-4, the upper cover plate 5d-5 is closed, the plug pins 8c are loosened after the upper cover plate 5d-5 is closed, the plug pins 8c are inserted into the first mounting holes 8a-1 and the second mounting holes 8b-1 under the action of the elastic force of the springs 8d, the cover plate 5d-5 is locked with the top end of the charging barrel 5d, the traditional Chinese medicines are prevented from leaking out, the box door 2 is closed, the heat exchanger 4 is electrically connected with an external power supply for heating, the air supplementing machine 6 is opened, air blown into the drying chamber S through the heat exchanger 4 arranged in the left air duct 1a uniformly, the air inlets 3a uniformly distributed on the vertical plate 3a, the rotating motor 5a is started, the rotating motor 5a drives the 匚 -shaped supporting frame 5c to rotate through the first rotating shaft 5b, the 匚 -shaped supporting frame 5c rotates, the traditional Chinese medicines penetrate through the charging barrel 5d uniformly, and the heated by the heated air in the charging barrel 5d uniformly, and the heated in the charging barrel 5d uniformly penetrates through the heated by the heat exchanging hole, and the heated traditional Chinese medicines uniformly enters the charging barrel 5 d.

Example 2

Referring to fig. 1 to 7, a second embodiment of the present utility model is based on the previous embodiment.

Specifically, 匚 c includes a support plate 5c-1 with a middle part fixed to an end of the first rotating shaft 5b, and a straight plate 5c-2 fixedly connected to a top end and a bottom end of the support plate 5c-1, and a top end and a bottom end of the charging barrel 5d are respectively connected to the two straight plates 5c-2 through rotating rods 5d-1 in a rotating manner.

Preferably, one side of the supporting plate 5c-1 facing the first rotating shaft 5b is provided with a strip-shaped through groove 5c-4, the middle part of the strip-shaped through groove 5c-4 is provided with a bearing 5e, two sides of the bearing 5e are fixed with the side wall of the strip-shaped through groove 5c-4 through a fixed block 5e-1, a second rotating shaft 5f is rotatably arranged in the inner ring of the bearing 5e, one end of the second rotating shaft 5f is provided with a bevel gear 5f-1, and the other end of the second rotating shaft 5f is provided with a first gear 5f-2.

Preferably, an annular toothed plate 5g is provided on the inner wall of the drying chamber S, the first rotating shaft 5b and the annular toothed plate 5g have the same central shaft, and the annular toothed plate 5g is meshed with the bevel gear 5 f-1.

When the first rotation shaft 5b rotates to drive the support plate 5c-1 to rotate, and when the support plate 5c-1 rotates, the second rotation shaft 5f also rotates due to the engagement between the bevel gear 5f-1 at the end of the second rotation shaft 5f and the annular toothed plate 5 g.

Preferably, a second gear 5d-2 is arranged at the rear end part of the rotating rod 5d-1, which is close to the first gear 5f-2, penetrating through the straight plate 5c-2, and a belt 5d-3 is arranged between the second gear 5d-2 and the first gear 5 f-2.

When the second rotating shaft 5f rotates, the first gear 5f-2 at the end drives the second gear 5d-2 at the end of the rotating rod 5d-1 to rotate through the belt 5d-3, and then the rotating rod 5d-1 drives the charging barrel 5d to rotate, so that the traditional Chinese medicinal materials in the charging barrel 5d can be turned more thoroughly, and the heating is more uniform.

When in use, the bolt 8c is pulled outwards, the bolt 8c is pulled out of the first mounting hole 8a-1 and the second mounting hole 8b-1, the cover plate 5d-5 is opened, the Chinese medicinal materials to be dried are poured into the feed inlet 5d-4, the upper cover plate 5d-5 is closed, the bolt 8c is released after the upper cover plate 5d-5 is closed, the bolt 8c is inserted into the first mounting hole 8a-1 and the second mounting hole 8b-1 under the action of the elastic force of the spring 8d, the cover plate 5d-5 is locked with the top end of the charging barrel 5d, the Chinese medicinal materials are prevented from leaking out, the box door 2 is closed, the heat exchanger 4 is electrically connected with an external power supply for heating, the air supplementing machine 6 is opened, the air blown by the air supplementing machine 6 is blown into the drying chamber S through a plurality of air inlet holes 3a-1 uniformly distributed on the vertical plate 3a after being heated by the heat exchanger 4 arranged in the left air duct 1a, when the rotating motor 5a is started, the rotating motor 5a drives the 匚 -shaped supporting frame 5c to rotate through the first rotating shaft 5b, the 匚 -shaped supporting frame 5c drives the charging barrel 5d to rotate, the supporting plate 5c-1 on the 匚 -shaped supporting frame 5c is driven to rotate when the first rotating shaft 5b rotates, when the supporting plate 5c-1 rotates, the bevel gear 5f-1 at the end part of the second rotating shaft 5f is meshed with the annular toothed plate 5g, so that the second rotating shaft 5f also rotates, when the second rotating shaft 5f rotates, the first gear 5f-2 at the end part drives the second gear 5d-2 at the end part of the rotating rod 5d-1 to rotate through the belt 5d-3, and then the charging barrel 5d is driven to rotate through the rotating rod 5d-1, so that the charging barrel 5d rotates simultaneously, the traditional Chinese medicinal materials in the charging barrel 5d can be turned thoroughly, the hot air passes through a plurality of through holes 5d-6 uniformly distributed on the outer surface wall of the charging barrel 5d, and enters the charging barrel 5d to heat the traditional Chinese medicine materials, and the traditional Chinese medicine materials are turned over in the charging barrel 5d, so that the heating is more uniform.

It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.

Claims

1. A hot air circulation oven for chinese-medicinal material processing, its characterized in that: including box (1), chamber door (2), guide plate (3), heat exchanger (4), slewing mechanism (5) to and air supplementing machine (6), guide plate (3) include with box (1) around two riser (3 a) that lateral wall interval set up, the top of two riser (3 a) sets up diaphragm (3 b), two riser (3 a) equipartitions have a plurality of fresh air inlets (3 a-1), form drying chamber (S) between guide plate (3) and box (1) diapire and the lateral wall, slewing mechanism (5) are including setting up in rotating electrical machines (5 a) of drying chamber (S) outer wall, the output of rotating electrical machines (5 a) runs through behind box (1) with first slewing axis (5 b) transmission connection, the tip of first slewing axis (5 b) is provided with 匚 c shape support frame (5 d) and charging basket (5 d), the chamber door (2) side is provided with handle (2 a).

2. A heated air circulation oven for use in the processing of chinese medicinal materials as claimed in claim 1, wherein: a left air channel (1 a) is formed between the vertical plate (3 a) and the left side wall of the box body (1), a right air channel (1 b) is formed between the vertical plate (3 a) and the right side wall of the box body (1), an upper air channel (1 c) is formed between the transverse plate (3 b) and the top wall of the box body (1), the heat exchanger (4) is arranged in the left air channel (1 a), and the air supplementing machine (6) is arranged on the outer wall corresponding to the upper air channel (1 c) of the box body (1).

3. A heated air circulation oven for use in the processing of chinese medicinal materials as claimed in claim 1, wherein: the charging barrel is characterized in that a plurality of through holes (5 d-6) are circumferentially and uniformly distributed in the outer surface wall of the charging barrel (5 d), a feeding hole (5 d-4) is formed in the top end of the charging barrel (5 d), a cover plate (5 d-5) is hinged to the feeding hole (5 d-4), and the top end of the cover plate (5 d-5) is connected with the top end of the charging barrel (5 d) through a locking assembly (8).

4. A heated air circulation oven for use in the processing of chinese medicinal materials as claimed in claim 3, wherein: the locking assembly (8) comprises a first mounting block (8 a) arranged on the outer side of the cover plate (5 d-5), a second mounting block (8 b) is arranged at the position, corresponding to the first mounting block (8 a), of the top end of the charging barrel (5 d), a first mounting hole (8 a-1) is formed in the side wall of the first mounting block (8 a), a second mounting hole (8 b-1) is formed in the position, corresponding to the first mounting hole (8 a-1), of the second mounting block (8 b, a plug pin (8 c) is inserted in the first mounting hole (8 a-1) and in a sliding mode, one side, corresponding to the plug pin (8 c), of the second mounting block (8 b) is fixed with a spring (8 d), and one end of the spring (8 d) is fixed with the outer surface wall of the plug pin (8 c).

5. A heated air circulation oven for use in the processing of chinese medicinal materials as claimed in claim 1, wherein: the heat exchanger (4) is a plurality of groups of electric heating wires, and the heat exchanger (4) is electrically connected with an external power supply.

6. A heated air circulation oven for use in the processing of chinese medicinal materials as claimed in claim 1, wherein: the novel wet air box is characterized in that air supplementing openings (1 d) and wet air discharging openings (1 e) are formed in two sides of the top end of the box body (1), the air supplementing openings (1 d) and the air supplementing fans (6) are located on the same side, and wet air discharging fans (7) are arranged at the wet air discharging openings (1 e).

7. A heated air circulation oven for use in the processing of chinese medicinal materials as claimed in claim 1, wherein: the 匚 -shaped supporting frame (5 c) comprises a supporting plate (5 c-1) with the middle part fixed with the end part of the first rotating shaft (5 b), and a straight plate (5 c-2) fixedly connected with the top end and the bottom end of the supporting plate (5 c-1), and the top end and the bottom end of the charging barrel (5 d) are respectively connected with the two straight plates (5 c-2) in a rotating way through rotating rods (5 d-1).

8. The heated air circulation oven for processing Chinese medicinal materials of claim 7, wherein: the support plate (5 c-1) is provided with a long strip-shaped through groove (5 c-4) towards one side of the first rotating shaft (5 b), the middle part of the long strip-shaped through groove (5 c-4) is provided with a bearing (5 e), two sides of the bearing (5 e) are fixed with the side wall of the long strip-shaped through groove (5 c-4) through a fixed block (5 e-1), a second rotating shaft (5 f) is rotatably arranged in the inner ring of the bearing (5 e), one end of the second rotating shaft (5 f) is provided with a bevel gear (5 f-1), and the other end of the second rotating shaft (5 f) is provided with a first gear (5 f-2).

9. The heated air circulation oven for processing Chinese medicinal materials of claim 8, wherein: an annular toothed plate (5 g) is arranged on the inner wall of the drying chamber (S), the first rotating shaft (5 b) and the annular toothed plate (5 g) have the same central shaft, and the annular toothed plate (5 g) is meshed with the bevel gear (5 f-1).

10. The heated air circulation oven for processing Chinese medicinal materials of claim 9, wherein: a second gear (5 d-2) is arranged at the rear end part of the rotating rod (5 d-1) which is close to the first gear (5 f-2) and penetrates through the straight plate (5 c-2), and a belt (5 d-3) is arranged between the second gear (5 d-2) and the first gear (5 f-2).