Chrysanthemum Chinese herbal medicine cleaning and drying machine

Abstract

The utility model discloses a chrysanthemum Chinese herbal medicine cleaning and drying machine which comprises a shell, a cleaning groove is formed in the bottom wall of the shell, a drying assembly is arranged in the shell, and the chrysanthemum Chinese herbal medicine cleaning and drying machine further comprises a conversion assembly. The conversion assembly comprises a connecting rod, a rotating shaft, a rotating ring and a conversion shaft, an adjustable cleaning frame is arranged in the cleaning tank, the conversion shaft is arranged on the left side face of the cleaning frame, the adjustable connecting rod is arranged in the cleaning tank, the rotating shaft is rotationally connected to the front side face of the left end of the connecting rod, and the rotating ring is arranged at the front end of the rotating shaft; according to the chrysanthemum Chinese herbal medicine cleaning and drying machine, chrysanthemum is transferred from a cleaning area to a drying area through a simple structure, the use cost of equipment is reduced, the step of manually participating in chrysanthemum transferring is greatly reduced, and the chrysanthemum Chinese herbal medicine cleaning and drying machine is convenient to use and high in practicability. And the chrysanthemum cleaning and drying efficiency of the equipment is improved, and meanwhile pollution to the chrysanthemum is reduced.

Description

Technical Field

[0001] This utility model relates to the field of traditional Chinese medicine processing technology, specifically a chrysanthemum traditional Chinese medicine washing and drying machine. Background Technology

[0002] In the field of traditional Chinese medicine, chrysanthemum is a widely used medicinal herb with effects such as dispelling wind and clearing heat, calming the liver and improving eyesight, and clearing heat and detoxifying. It is used in many prescriptions, health products, and teas. With the increasing attention people pay to health and wellness, the traditional Chinese medicine market continues to flourish, leading to a growing demand for chrysanthemum. This is reflected not only in the increased demand but also in the higher quality requirements for chrysanthemum. Before chrysanthemum is used in medicine or enters the market, cleaning and drying are crucial processing steps that directly affect its quality, efficacy, and shelf life. Therefore, developing efficient, precise cleaning and drying equipment that can guarantee the quality of chrysanthemum has become a key need for the traditional Chinese medicine processing industry.

[0003] In chrysanthemum processing, when cleaning and drying the chrysanthemum herbs, some small processing sites involve workers placing the chrysanthemums in large basins or troughs filled with water for cleaning. They manually stir and scrub the chrysanthemums to remove surface impurities. Drying involves spreading the cleaned chrysanthemums evenly on a drying area, relying on sunlight and natural wind to evaporate the moisture. During transport, workers manually move the cleaning baskets from the cleaning area to the drying area and unload the chrysanthemums to dry. Some larger enterprises use semi-automatic cleaning equipment. During cleaning, a motor drives a rotating agitator in the water tank, creating a vortex that causes the chrysanthemums to tumble and be cleaned using the impact and friction of the water flow. A spray system above the tank also provides multi-angle water spraying to assist cleaning. Drying is done in a hot air drying box, where heating elements are energized and a fan circulates hot air, ensuring even heating and accelerating moisture evaporation. Temperature and time can be set via a control panel. During transport, the chrysanthemums are transported using a track... Some companies use hoisting equipment or simple conveyor belts. After the washing frames are cleaned, the track hoisting equipment, driven by a motor, moves along the track to transport the washing frames to the area above the drying zone. Workers then manually pour the chrysanthemums into the drying equipment. Alternatively, the washing frames are placed on a conveyor belt, driven by a motor, and transported to the vicinity of the drying area. Finally, workers transfer the chrysanthemums. Some companies use fully automatic washing and drying equipment. During washing, a multi-nozzle high-pressure spray system sprays high-pressure water from different angles to rinse the chrysanthemums. An ultrasonic generator at the bottom of the washing tank uses cavitation to remove impurities. During drying, an intelligent temperature-controlled hot air circulation system monitors the temperature and humidity inside the chamber through sensors and automatically adjusts the heating power and fan speed. After washing, a built-in robotic arm grabs the washing frames according to a preset program and moves them precisely to the drying area. Alternatively, an automatic flipping device, driven by a motor, flips the washing frames at a specific angle and in a specific manner, allowing the chrysanthemums to be poured directly into the drying equipment.

[0004] Existing methods for transferring chrysanthemums from washing to drying present several problems. Manual transfer is labor-intensive, inefficient, and unsuitable for large-scale production. It also easily leads to chrysanthemum waste due to operational errors, and can damage and contaminate the chrysanthemums, affecting quality and safety. Semi-automatic transfer, while aided by machinery, still requires some manual operation, resulting in low efficiency and potential damage and contamination. Fully automatic transfer offers advantages, but its high equipment cost places a heavy burden on small and medium-sized enterprises in terms of procurement and maintenance. Therefore, we propose a chrysanthemum herbal washing and drying machine. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a chrysanthemum herbal medicine washing and drying machine, which reduces the cost of equipment use and reduces manual labor, and can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a chrysanthemum herbal medicine washing and drying machine, including a shell, a washing tank on the bottom wall of the shell, a drying component inside the shell, and a conversion component;

[0007] The conversion assembly includes a connecting rod, a rotating shaft, a rotating ring, and a conversion shaft. An adjustable cleaning frame is located inside the cleaning tank, and a conversion shaft is located on the left side of the cleaning frame. An adjustable connecting rod is also located inside the cleaning tank. The rotating shaft is rotatably connected to the front left end of the connecting rod, and a rotating ring is located at the front end of the rotating shaft. The inner arc surface of the rotating ring is rotatably connected to the outer arc surface of the left end of the conversion shaft. This simple structure allows chrysanthemums to be transferred from the cleaning area to the drying area, reducing equipment operating costs, significantly decreasing manual intervention in chrysanthemum transfer, improving the efficiency of cleaning and drying chrysanthemums, and reducing contamination of the chrysanthemums.

[0008] Furthermore, a control switch assembly is provided on the front side of the housing, and the input end of the control switch assembly is electrically connected to an external power source for stable control.

[0009] Furthermore, a main shaft is rotatably connected to the right inner wall of the cleaning tank, and a U-shaped seat is provided at the left end of the main shaft. A connecting shaft is fixedly connected between the front and rear inner walls of the U-shaped seat. A mounting bracket is rotatably connected to the middle of the outer arc surface of the connecting shaft. A transition shaft is rotatably connected to the left end of the mounting bracket through a steel ball bearing. The left end of the transition shaft is fixedly connected to the right side of the cleaning frame, which facilitates the rotation of the cleaning frame.

[0010] Furthermore, a motor is provided on the right side of the cleaning tank. The output shaft of the motor is fixedly connected to the center of the right end face of the main shaft. The input end of the motor is electrically connected to the output end of the control switch group for stable driving.

[0011] Furthermore, the conversion assembly also includes a rotating shaft, which is rotatably connected to the rear inner wall of the cleaning tank. A connecting rod is provided at the front end of the rotating shaft, and the central axis of the rotating shaft coincides with the central axis of the connecting rod. A second motor is installed on the rear side of the cleaning tank, and the output shaft of the second motor is fixedly connected to the center of the rear end face of the rotating shaft. The input ends of the second motor and the first motor are electrically connected to the output end of the control switch group for stable driving.

[0012] Furthermore, the conversion assembly also includes a driven gear, a drive shaft, and a gear. The left end of the conversion shaft is provided with a driven gear. The top wall of the housing is rotatably connected to the drive shaft. The lower end of the drive shaft is provided with a gear. The gear and the driven gear are fitted together. The upper side of the housing is equipped with a motor three. The output shaft of the motor three is fixedly connected to the center of the upper end face of the drive shaft. The input end of the motor three is electrically connected to the output end of the control switch group. When the cleaning frame arrives at the drying area, it drives the cleaning frame to rotate.

[0013] Furthermore, the mounting bracket has connecting pieces on both the front and rear sides of the outer arc surface at the left end, and bolts are threaded to the middle of the connecting pieces. The left ends of the bolts are threaded to the right side of the cleaning frame, which facilitates the connection between the mounting bracket and the cleaning frame.

[0014] Furthermore, the drying assembly includes a drying chamber, a drying head, a heating wire, a pipe, and a fan. The drying chamber is located on the top wall of the outer shell, and the drying head is located at the drying opening on the left side wall of the drying chamber. The heating wire is located at the left end between the front and rear inner walls of the drying chamber, and the pipe is located at the air inlet at the right end of the drying chamber. The fan is installed at the right end of the outer shell, and the air outlet of the fan is connected to the right end of the pipe. The input ends of the fan and the heating wire are both electrically connected to the output end of the control switch group to facilitate the drying and cleaning of the chrysanthemum.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This chrysanthemum herbal medicine washing and drying machine has the following advantages:

[0016] After the chrysanthemum herbs are cleaned, the conversion assembly automatically transfers the cleaning frame to the drying area. Motor 2 drives the rotating shaft and connecting rod to swing, and through the rotating shaft and ring, the conversion shaft rotates, which in turn drives the cleaning frame, transition shaft, and mounting bracket to rotate around the connecting shaft. With the cooperation of Motor 3, the drive gear meshes with the driven gear, realizing the transfer of the cleaning frame and chrysanthemums. The entire process only requires simple assistance from workers (such as adjusting the position of the cleaning frame to engage the gears and unscrewing the bolts), which greatly reduces the manual intervention in the process of transferring chrysanthemums, reduces labor intensity and equipment usage costs, and also improves production efficiency and reduces the damage and contamination of chrysanthemums that may be caused by manual operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the front cross-section of the present invention;

[0019] Figure 3 This is a structural schematic diagram of the front end of this utility model at a 45-degree angle to the left.

[0020] Figure 4 This is a partial structural diagram of the cleaning tank of this utility model;

[0021] Figure 5 This is an enlarged structural diagram of point A of this utility model.

[0022] In the diagram: 1. Housing, 2. Conversion assembly, 21. Rotating shaft, 22. Connecting rod, 23. Rotating shaft, 24. Rotating ring, 25. Conversion shaft, 26. Driven gear, 27. Drive shaft, 28. Gear, 3. Cleaning tank, 4. Drying assembly, 41. Drying chamber, 42. Drying head, 43. Heating wire, 44. Pipe, 45. Fan, 5. Cleaning frame, 6. Main shaft, 7. U-shaped seat, 8. Connecting shaft, 9. Mounting bracket, 10. Steel ball bearing, 11. Transition shaft, 12. Connecting piece, 13. Bolt, 14. Motor 1, 15. Motor 2, 16. Motor 3, 17. Control switch group. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5This embodiment provides a technical solution: a chrysanthemum herbal medicine washing and drying machine, including a shell 1, with an opening door on the front side wall of the shell 1. A control switch group 17 is provided on the front side of the shell 1, with its input terminal electrically connected to an external power source. A washing tank 3 is provided on the bottom wall of the shell 1. A drying assembly 4 is provided inside the shell 1, including a drying chamber 41, a drying head 42, a heating wire 43, a pipe 44, and a fan 45. The drying chamber 41 is provided on the top wall of the shell 1, and the drying head 42 is located at the drying opening on the left side wall of the drying chamber 41. A heating element is located at the left end between the front and rear inner walls of the drying chamber 41. The heating wire 43 is installed in the air inlet at the right end of the drying chamber 41, and a fan 45 is installed at the right end of the outer shell 1. The air outlet of the fan 45 is connected to the right end of the pipe 44. The input ends of the fan 45 and the heating wire 43 are electrically connected to the output end of the control switch group 17. The control switch group 17 starts the fan 45 and the heating wire 43. The fan 45 draws in the outside air and sends it into the drying chamber 41 through the pipe 44. The heating wire 43 heats the air entering the drying chamber 41. The hot air is blown out through the drying head 42 to dry the chrysanthemums during the rotation process, which is convenient for drying the cleaned chrysanthemums. It also includes a conversion component 2.

[0025] Conversion component 2 includes a connecting rod 22, a rotating shaft 23, a rotating ring 24, and a conversion shaft 25. An adjustable cleaning frame 5 is provided inside the cleaning tank 3. A pick-up and drop-off door can be opened in the middle of the cleaning frame 5. A door lock is installed at one end of the pick-up and drop-off door where it fits against the cleaning frame 5. A main shaft 6 is rotatably connected to the right inner wall of the cleaning tank 3. A U-shaped seat 7 is provided at the left end of the main shaft 6. A connecting shaft 8 is fixedly connected between the front and rear inner walls of the U-shaped seat 7. A mounting bracket 9 is rotatably connected to the middle of the outer arc surface of the connecting shaft 8. Connecting pieces 12 are provided on both the front and rear sides of the outer arc surface of the left end of the mounting bracket 9. Bolts 13 are threadedly connected to the middle of each connecting piece 12. The left end of each bolt 13 is threadedly connected to the right side of the cleaning frame 5. Two threaded holes are opened on the right side of the cleaning frame 5. When the bolts 13 are threaded into the threaded holes... When connected, the rotation of the mounting bracket 9 will drive the cleaning frame 5 to rotate. When the bolt 13 is far from the threaded hole, the rotation of the cleaning frame 5 will not affect the mounting bracket 9. The left end of the mounting bracket 9 is rotatably connected to the transition shaft 11 through the ball bearing 10. The left end of the transition shaft 11 is fixedly connected to the right side of the cleaning frame 5. The right side of the cleaning tank 3 is equipped with a motor 14. The output shaft of the motor 14 is fixedly connected to the center of the right end face of the main shaft 6. The input end of the motor 14 is electrically connected to the output end of the control switch group 17. The left side of the cleaning frame 5 is equipped with a conversion shaft 25. The inside of the cleaning tank 3 is equipped with an adjustable connecting rod 22. The conversion assembly 2 also includes a rotating shaft 21. The rotating shaft 21 is rotatably connected to the rear inner wall of the cleaning tank 3. The front end of the rotating shaft 21 is equipped with a connecting rod 22. The center of the rotating shaft 21 is... The axis coincides with the central axis of the connecting shaft 8. A second motor 15 is mounted on the rear side of the cleaning tank 3. The output shaft of the second motor 15 is fixedly connected to the center of the rear end face of the rotating shaft 21. The input end of the second motor 15 (motor 14) is electrically connected to the output end of the control switch group 17. A rotating shaft 23 is rotatably connected to the front left end of the connecting rod 22. A rotating ring 24 is provided at the front end of the rotating shaft 23. The inner arc surface of the rotating ring 24 is rotatably connected to the outer arc surface of the left end of the conversion shaft 25. The conversion assembly 2 also includes a driven gear 26, a drive shaft 27, and a gear 28. The driven gear 26 is provided at the left end of the conversion shaft 25. The drive shaft 27 is rotatably connected to the top wall of the outer casing 1. A gear 28 is provided at the lower end of the drive shaft 27. The gear 28 is fitted with the driven gear 26. A [missing information - likely a component or component] is mounted on the upper side of the outer casing 1. Motor 3 (16) has its output shaft fixedly connected to the center of the upper end face of drive shaft 27. The input end of motor 3 (16) is electrically connected to the output end of control switch group 17. During the chrysanthemum cleaning and drying process, the chrysanthemums are first placed in the cleaning frame 5. The loading / unloading door in the middle of the cleaning frame 5 is closed and locked. Motor 1 (14) is started via control switch group 17. The output shaft of motor 14 drives the main shaft 6 to rotate, causing the U-shaped seat 7 at the left end of the main shaft 6 to rotate accordingly. The connecting shaft 8 on the U-shaped seat 7 also rotates, driving the mounting bracket 9 to rotate. Since the mounting bracket 9 is connected to the cleaning frame 5 via bolts 13, the rotation of the mounting bracket 9 causes the cleaning frame 5 to rotate within the cleaning tank 3. At this time, the cleaning frame 5, driven by motor 14, rotates and is cleaned within the cleaning tank 3.After initial cleaning of the chrysanthemums, the chrysanthemums in the cleaning frame 5 are transferred to the drying assembly 4 for drying. Motor 15 is started via control switch group 17. The output shaft of motor 15 drives the rotating shaft 21 to rotate, causing the connecting rod 22 at the front end of the rotating shaft 21 to swing. The rotating shaft 23 and rotating ring 24 at the left end of the connecting rod 22 drive the conversion shaft 25 to rotate. The conversion shaft 25 drives the cleaning frame 5, the transition shaft 11, and the mounting bracket 9 to rotate around the central axis of the connecting shaft 8. During this process, the worker rotates the cleaning frame 5 to make the driven gear at the left end of the conversion shaft 25... Wheel 26 meshes with gear 28. Then, bolt 13 is unscrewed, and control switch group 17 is activated to start motor 16. The output shaft of motor 16 drives drive shaft 27 to rotate. Gear 28 at the lower end of drive shaft 27 meshes with driven gear 26 at the left end of conversion shaft 25, causing driven gear 26 to drive conversion shaft 25 to rotate. This, in turn, causes cleaning frame 5 to rotate synchronously, thus displacing the chrysanthemums inside cleaning frame 5. After chrysanthemum cleaning, cleaning frame 5 is moved to the drying area and rotated, reducing manual intervention in the chrysanthemum transfer process.

[0026] The working principle of the chrysanthemum herbal cleaning and drying machine provided by this utility model is as follows: When cleaning and drying chrysanthemums, firstly, place the chrysanthemums in the cleaning frame 5, close and lock the loading and unloading door in the middle of the cleaning frame 5, and start the motor 14 through the control switch group 17. The output shaft of the motor 14 drives the main shaft 6 to rotate, and the U-shaped seat 7 at the left end of the main shaft 6 rotates accordingly. The connecting shaft 8 on the U-shaped seat 7 also rotates together, and the connecting shaft 8 drives the mounting frame 9 to rotate. Since the mounting frame 9 is connected to the cleaning frame 5 through bolts 13, the rotation of the mounting frame 9 will drive the cleaning frame 5 to rotate in the cleaning tank 3. At this time, the cleaning frame 5 rotates and cleans in the cleaning tank 3 under the drive of the motor 14, performing preliminary cleaning treatment on the chrysanthemums. After cleaning, the chrysanthemums in the cleaning frame 5 need to be transferred to the drying assembly 4 for drying. Start the motor 25 through the control switch group 17. The output shaft of the motor 25 drives the rotating shaft 21 to rotate, and the connecting rod 22 at the front end of the rotating shaft 21 swings accordingly. The rotating shaft 23 and the rotating ring 24 at the end will drive the conversion shaft 25 to rotate. The conversion shaft 25 will drive the cleaning frame 5, the transition shaft 11 and the mounting bracket 9 to rotate around the central axis of the connecting shaft 8. During this process, the worker will rotate the cleaning frame 5 so that the driven gear 26 at the left end of the conversion shaft 25 can mesh with the gear 28. Then, the bolt 13 will be unscrewed. Next, the control switch group 17 will start the motor 3 16. The output shaft of the motor 3 16 will drive the drive shaft 27 to rotate. The gear 28 at the lower end of the drive shaft 27 will mesh with the driven gear 26 at the left end of the conversion shaft 25, causing the driven gear 26 to drive the conversion shaft 25 to rotate, thereby driving the cleaning frame 5 to rotate synchronously. This will cause the chrysanthemum inside the cleaning frame 5 to move accordingly. Finally, the control switch group 17 will start the fan 45 and the heating wire 43. The fan 45 will draw in outside air and send it into the drying chamber 41 through the pipe 44. The heating wire 43 will heat the air entering the drying chamber 41. The hot air will be blown out through the drying head 42 to dry the chrysanthemum during the rotation process.

[0027] It is worth noting that the fan 45 disclosed in the above embodiments can be model 4-72No.3.2A, motor 14 and motor 2 15 can both be model Y90S-4, motor 3 16 can be model Y80M1-2, and the control switch group 17 is provided with control buttons that correspond one-to-one with the fan 45, motor 14, motor 2 15 and motor 3 16 and are used to control their switching.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A chrysanthemum herbal medicine washing and drying machine, comprising a shell (1), wherein the bottom wall of the shell (1) is provided with a washing tank (3), and the interior of the shell (1) is provided with a drying assembly (4), characterized in that: It also includes a conversion component (2); The conversion assembly (2) includes a connecting rod (22), a rotating shaft (23), a rotating ring (24), and a conversion shaft (25). The cleaning tank (3) is provided with an adjustable cleaning frame (5). The left side of the cleaning frame (5) is provided with a conversion shaft (25). The cleaning tank (3) is provided with an adjustable connecting rod (22). The left front side of the connecting rod (22) is rotatably connected to the rotating shaft (23). The front end of the rotating shaft (23) is provided with a rotating ring (24). The inner arc surface of the rotating ring (24) is rotatably connected to the left outer arc surface of the conversion shaft (25).

2. The chrysanthemum herbal medicine washing and drying machine according to claim 1, characterized in that: The front side of the housing (1) is provided with a control switch group (17), and the input end of the control switch group (17) is electrically connected to an external power source.

3. The chrysanthemum herbal medicine washing and drying machine according to claim 2, characterized in that: The cleaning tank (3) has a main shaft (6) rotatably connected to the inner wall of the right side. The left end of the main shaft (6) is provided with a U-shaped seat (7). A connecting shaft (8) is fixedly connected between the front and rear inner walls of the U-shaped seat (7). A mounting bracket (9) is rotatably connected to the middle of the outer arc surface of the connecting shaft (8). A transition shaft (11) is rotatably connected to the left end of the mounting bracket (9) through a steel ball bearing (10). The left end of the transition shaft (11) is fixedly connected to the right side of the cleaning frame (5).

4. The chrysanthemum herbal medicine washing and drying machine according to claim 3, characterized in that: The right side of the cleaning tank (3) is provided with a motor (14). The output shaft of the motor (14) is fixedly connected to the center of the right end face of the main shaft (6). The input end of the motor (14) is electrically connected to the output end of the control switch group (17).

5. A chrysanthemum herbal medicine washing and drying machine according to claim 3, characterized in that: The conversion component (2) also includes a rotating shaft (21). The rotating shaft (21) is rotatably connected to the rear inner wall of the cleaning tank (3). A connecting rod (22) is provided at the front end of the rotating shaft (21). The central axis of the rotating shaft (21) coincides with the central axis of the connecting shaft (8). A second motor (15) is installed on the rear side of the cleaning tank (3). The output shaft of the second motor (15) is fixedly connected to the center of the rear end face of the rotating shaft (21). The input end of the second motor (15) and the first motor (14) are electrically connected to the output end of the control switch group (17).

6. A chrysanthemum herbal medicine washing and drying machine according to claim 2, characterized in that: The conversion assembly (2) also includes a driven gear (26), a drive shaft (27) and a gear (28). The left end of the conversion shaft (25) is provided with a driven gear (26). The top wall of the housing (1) is rotatably connected to the drive shaft (27). The lower end of the drive shaft (27) is provided with a gear (28). The gear (28) is installed in conjunction with the driven gear (26). The upper side of the housing (1) is equipped with a motor (16). The output shaft of the motor (16) is fixedly connected to the center of the upper end face of the drive shaft (27). The input end of the motor (16) is electrically connected to the output end of the control switch group (17).

7. A chrysanthemum herbal medicine washing and drying machine according to claim 3, characterized in that: The mounting bracket (9) has connecting pieces (12) on both the front and rear sides of the outer arc surface at the left end. The middle part of the connecting pieces (12) is threaded with bolts (13), and the left end of the bolts (13) is threaded to the right side of the cleaning frame (5).

8. A chrysanthemum herbal medicine washing and drying machine according to claim 2, characterized in that: The drying assembly (4) includes a drying chamber (41), a drying head (42), a heating wire (43), a pipe (44), and a fan (45). The top wall of the outer shell (1) is provided with a drying chamber (41). A drying head (42) is provided at the drying port on the left side wall of the drying chamber (41). A heating wire (43) is provided at the left end between the front and rear inner walls of the drying chamber (41). A pipe (44) is provided at the air inlet at the right end of the drying chamber (41). A fan (45) is installed at the right end of the outer shell (1). The air outlet of the fan (45) is connected to the right end of the pipe (44). The input ends of the fan (45) and the heating wire (43) are both electrically connected to the output end of the control switch group (17).

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