Automatic dust removing mechanism for moxa stick

Abstract

The utility model discloses an automatic ash removing mechanism of moxa stick, automatic ash removing mechanism of moxa stick includes structure frame and scrape ash subassembly, structure frame includes installation support and the bottom plate of fixed connection at installation support top, scrape ash subassembly includes the stepping motor of installation on the bottom plate, belt drive subassembly, ash removing cylinder and the rotating shaft of one end coaxial fixed connection at ash removing cylinder bottom, the other end of rotating shaft is vertically worn in the bottom plate, and the stepping motor vertically wears in the bottom plate one side, and one side of belt drive subassembly is driven to be connected with the stepping motor, and the other side is driven to be connected with rotating shaft, ash removing cylinder includes ash depositing cylinder body and brush, the outer bottom center of ash depositing cylinder body is installed at the top end of rotating shaft, and multiple brushes are evenly distributed on the inner circumferential direction of ash depositing cylinder body, and the stepping motor is suitable for driving ash depositing cylinder body rotation through belt drive subassembly. The mechanism realizes the automatic cleaning and collection to moxa stick surface ash, has compact structure, clean and efficient and so on advantages.

Description

Technical Field

[0001] This utility model relates to the field of moxibustion equipment technology, specifically to an automatic ash removal mechanism for moxa sticks. Background Technology

[0002] In traditional moxibustion therapy, the ash produced by burning moxa sticks tends to adhere to the surface of the moxa sticks, affecting combustion efficiency and stable heat output.

[0003] In existing technologies, ash removal largely relies on manual operation, such as manually scraping ash with tools. This results in low efficiency, poor hygiene, and potential interruptions to the moxibustion process. Furthermore, ash accumulation can clog the heat output ports, leading to uneven heat distribution and affecting the therapeutic effect. Although some automated devices attempt to integrate ash removal functions, they are often structurally complex and lack sufficient control precision, failing to achieve efficient and clean ash removal.

[0004] Therefore, there is an urgent need for an automatic ash removal mechanism for moxa sticks that is simple in structure, highly automated, and can accurately control the ash scraping process. Utility Model Content

[0005] In view of this, and to overcome the shortcomings of the aforementioned technologies, this utility model provides an automatic ash removal mechanism for moxa sticks. A stepper motor drives a belt transmission mechanism to rotate the ash scraper, thereby automatically cleaning and collecting the ash from the surface of the moxa sticks. This mechanism has advantages such as compact structure, precise control, and high cleaning efficiency, and is suitable for automated equipment such as moxibustion robots.

[0006] The technical solution of this utility model is as follows: The purpose of this utility model is to provide an automatic ash removal mechanism for moxa sticks, which is installed on an automatic moxibustion device and includes a structural frame and an ash scraping component. The structural frame includes a mounting bracket and a base plate fixedly connected to the top of the mounting bracket; The ash removal assembly includes a stepper motor, a belt drive assembly, an ash removal cylinder, and a rotating shaft with one end coaxially fixed to the bottom of the ash removal cylinder, all mounted on the base plate. The other end of the rotating shaft passes vertically through the base plate. The stepper motor passes vertically through one side of the base plate. One side of the belt drive assembly is driven by the stepper motor, and the other side is driven by the rotating shaft. The ash removal cylinder includes an ash collection cylinder body and brushes; the outer bottom center of the ash collection cylinder body is installed at the top of the rotating shaft, and multiple brushes are evenly distributed in the inner circumferential direction of the ash collection cylinder body; the stepper motor is adapted to drive the ash collection cylinder body to rotate via the belt drive assembly.

[0007] Optionally, the device also includes a photoelectric sensor located near the top of the ash collection cylinder body. The photoelectric sensor includes a transmitter and a receiver, and the transmitter and the receiver are positioned opposite each other on the top sides of the ash collection cylinder body.

[0008] Optionally, the belt drive assembly includes a driving pulley, a driven pulley, and a belt connected to the output shaft of the stepper motor; the driven pulley is connected to the end of the rotating shaft away from the ash collection cylinder body, the driving pulley and the driven pulley are both located on the same side of the base plate, and the belt meshing drive is connected between the driving pulley and the driven pulley.

[0009] Optionally, a tensioning device is provided on the outer side of the drive pulley, the tensioning device being used to adjust the tension of the belt; the tensioning device includes a tensioning base and a screw threadedly connected to the tensioning base, the end of the screw passing through the tensioning base being connected to the side wall of the motor mount of the stepper motor, so as to push the stepper motor to a position on the base plate.

[0010] Optionally, the rotating shaft is located between the driven pulley and the ash collection cylinder body and is also vertically rotatably mounted on the base plate via a bearing seat. The driven pulley is axially limited and connected to the rotating shaft by a number of synchronous pulley spacers, and one end face of the synchronous pulley spacer abuts against the stepped stop end face of the rotating shaft, while the other end face abuts against the end face of the driven pulley.

[0011] Optionally, the bearing housing has an outer stop at its bottom, and the base plate has a mounting hole facing the outer stop, the outer stop being suitable for insertion into the mounting hole; the bearing housing has a bearing cavity inside, a deep groove ball bearing and a retaining ring for the bore are installed in the bearing cavity, and the deep groove ball bearing is sleeved on the rotating shaft.

[0012] Optionally, the ash removal cylinder further includes a cylinder base sleeved on the bottom of the ash collection cylinder body, the bottom center of the cylinder base having a positioning hole, and the outer bottom center of the ash collection cylinder body having a protruding cylinder, the protruding cylinder being adapted to be accommodated in the positioning hole.

[0013] Optionally, the bottom center of the cylindrical base is further provided with a shaft disc hole located on the lower end face of the positioning hole, and the rotating shaft is also provided with a shaft disc on the side near the cylindrical base, the shaft disc being adapted to be accommodated in the shaft disc hole.

[0014] Optionally, the brush is made of high-temperature resistant nylon filaments.

[0015] Optionally, the top outer periphery of the ash collection cylinder body is also provided with a brush cover, which is adapted to press against the root of the brush.

[0016] Compared with the prior art, this utility model has at least the following beneficial effects: The automatic ash removal mechanism for moxa sticks in this invention is installed on an automatic moxibustion device. This mechanism includes a structural frame and an ash scraping assembly. A stepper motor paired with a belt drive assembly enables smooth speed regulation and precise positioning of the rotating shaft, driving the ash collection cylinder to rotate at a preset speed. This avoids uneven ash removal caused by speed fluctuations. The belt drive structure is simple and has low energy loss. Combined with the power output characteristics of the stepper motor, it can quickly transmit power to the ash collection cylinder, ensuring timely response during ash removal. Simultaneously, the elasticity of the belt buffers operational impacts, protecting core components such as the motor and rotating shaft. Both the stepper motor and rotating shaft are vertically mounted through the base plate and connected via belt drive, allowing for a compact layout of the components within the structural frame. It adapts to the installation space limitations of automatic moxibustion equipment without affecting the operation of other functional modules. Multiple brushes are evenly distributed along the inner circumference of the ash collection cylinder. When the ash collection cylinder rotates, the brushes move in a circular motion simultaneously, automatically cleaning the ash on the surface of the moxa stick without manual intervention, reducing operational intensity and improving the efficiency of moxibustion. The flexible contact method of the brushes avoids mechanical damage to the burning end of the moxa stick while cleaning the ash, preventing the moxa stick from breaking or disrupting the burning state, and ensuring the consistency of the moxibustion effect. The structural frame is adapted to the automatic moxibustion equipment through the mounting bracket. The overall modular design facilitates installation, disassembly, and maintenance, and can be quickly integrated into various automatic moxibustion devices, improving the functional expandability of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of one direction of the automatic ash removal mechanism for moxa sticks in an embodiment of this utility model; Figure 2 This is a schematic diagram of the automatic ash removal mechanism for moxa sticks from another direction in an embodiment of this utility model; Figure 3 This is a schematic diagram of the main structure of the automatic ash removal mechanism for moxa sticks in an embodiment of this utility model; Figure 4 This is a top view of the automatic ash removal mechanism for moxa sticks in an embodiment of this utility model. Figure 5 This is an exploded structural diagram of the automatic ash removal mechanism for moxa sticks in an embodiment of this utility model; Figure 6 This is a schematic diagram of the structure of the scraping component in an embodiment of this utility model; Figure 7 This is a schematic diagram of the exploded structure of the ash removal cylinder in one direction in an embodiment of this utility model; Figure 8 This is an exploded view of the ash removal cylinder from another direction in an embodiment of this utility model; Figure 9This is a cross-sectional view of the ash removal cylinder in an embodiment of this utility model.

[0018] Explanation of reference numerals in the attached figures: 1-Structural frame; 11-Mounting bracket; 12-Base plate; 121-Mounting hole; 2-Scraping assembly; 21-Stepper motor; 211-Motor mount; 22-Belt drive assembly; 221-Driving pulley; 222-Driven pulley; 2221-Synchronous belt pulley spacer; 223-Belt; 224-Tensioning device; 2241-Tensioning base; 2242-Screw; 23-Dust removal cylinder; 231-Dust collection cylinder body; 2311-Protruding cylinder; 2312-Brush cover; 232-Brush; 233-Cylinder base; 2331-Positioning hole; 2332-Shaft disc hole; 24 - Rotary shaft; 241 - Shaft disk; 3-Photoelectric sensor; 31-Transmitter; 32-Receiver; 4-Bearing housing; 41-External stop; 42-Deep groove ball bearing; 43-Bore retaining ring. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. In the description of this utility model, it should be noted that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can also refer to the internal connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Figure 1-9 The image shows an automatic moxa stick ash removal mechanism provided in an embodiment of this utility model. The automatic moxa stick ash removal mechanism is installed on an automatic moxibustion device and includes a structural frame 1 and an ash scraping assembly 2, wherein: The structural frame 1 includes a mounting bracket 11 and a base plate 12, with the base plate 12 fixedly connected to the top of the mounting bracket 11.

[0021] The dust removal assembly 2 includes a stepper motor 21, a belt drive assembly 22, a dust removal cylinder 23, and a rotating shaft 24. The stepper motor 21, the belt drive assembly 22, and the dust removal cylinder 23 are all mounted on the base plate 12. One end of the rotating shaft 24 is coaxially fixedly connected to the bottom of the dust removal cylinder 23, and the other end of the rotating shaft 24 is vertically inserted through the base plate 12. The stepper motor 21 is vertically inserted through one side of the base plate 12, and one side of the belt drive assembly 22 is drivenly connected to the stepper motor 21, while the other side is drivenly connected to the rotating shaft 24. The ash removal cylinder 23 includes an ash collection cylinder body 231 and brushes 232. The outer bottom center of the ash collection cylinder body 231 is installed at the top of the rotating shaft 24. Multiple brushes 232 are evenly distributed in the inner circumferential direction of the ash collection cylinder body 231. The stepper motor 21 is adapted to drive the ash collection cylinder body 231 to rotate via the belt drive assembly 22.

[0022] Specifically, in this technical solution, after the stepper motor 21 starts, the output torque is transmitted to the rotating shaft 24 through the belt drive assembly 22. The rotating shaft 24 is fixed coaxially with the ash removal cylinder body 231, driving the ash removal cylinder body 231 to rotate at a constant speed around the vertical axis. The brush 232 rotates synchronously with the ash collection cylinder body 231, forming a circumferential scraping motion.

[0023] When the moxa stick is in operation, the ash produced at the burning end naturally adheres to the surface. After the moxa stick is positioned, its burning end extends into the ash removal cylinder body 231. The rotating brush 232 contacts the surface of the burning end of the moxa stick, and the adhering ash is scraped off by friction. The scraped-off ash falls directly into the ash collection cylinder body 231 for centralized collection. This process eliminates the need for manual cleaning of the ash, avoids frequent shutdowns during moxibustion, and ensures a continuous treatment process. The stepper motor 21 can precisely control the rotation speed to adapt to moxa sticks with different burning speeds, ensuring that the ash removal frequency matches the ash collection speed.

[0024] Specifically, please refer to Figure 1-4 As shown, in one embodiment of the present invention, the automatic ash removal mechanism for moxa sticks also includes a photoelectric sensor 3 located near the top of the ash collection cylinder body 231. The photoelectric sensor 3 includes a transmitter 31 and a receiver 32, and the transmitter 31 and the receiver 32 are positioned opposite each other on the top sides of the ash collection cylinder body 231.

[0025] In this embodiment, the transmitter 31 and receiver 32 of the photoelectric sensor 3 are arranged facing each other, forming an infrared detection light path passing through the top of the ash collection cylinder body 231. When the burning end of the moxa stick is inserted into the ash removal cylinder 23, the amount of ash is small in the initial state, the infrared light path is unobstructed, and the receiver receives the signal normally. As moxibustion proceeds, ash continues to accumulate on the surface of the burning end. When the thickness of the ash increases to the point of obstructing the infrared light path, the receiver signal is interrupted, triggering the detection signal. The photoelectric sensor 3 transmits the light path obstruction signal to the control system of the automatic moxibustion device. After receiving the signal, the control system instructs the stepper motor 21 to start, which drives the ash removal cylinder 23 to rotate through the belt drive assembly 22, and the brush 232 begins to scrape the ash. During the ash scraping process, the ash is removed, the infrared light path is restored, the receiver 32 receives the signal again, and the control system instructs the stepper motor 21 to stop, completing one on-demand ash removal cycle.

[0026] Specifically, please refer to Figure 6 As shown, in one embodiment of this utility model, the belt drive assembly 22 includes a driving pulley 221, a driven pulley 222, and a belt 223. The driving pulley 221 is connected to the output shaft of the stepper motor 21, and the driven pulley 222 is connected to the end of the rotating shaft 24 away from the ash collection cylinder body 231. The driving pulley 221 and the driven pulley 222 are both located on the same side of the base plate 12, and the belt 223 is engaged and driven between the driving pulley 221 and the driven pulley 222.

[0027] In this embodiment, after the stepper motor 21 is started, the output shaft rotates and drives the fixed drive pulley 221 to rotate synchronously. The drive pulley 221 transmits the rotational force to the belt 223 through the meshing relationship with the belt 223, so that the belt 223 circulates along the tangential direction of the two pulleys. The belt 223 meshes with the driven pulley 222, drives the driven pulley 222 to rotate, and then drives the rotating shaft 24 fixed to it to rotate.

[0028] Therefore, the meshing transmission method of the belt and the two wheels avoids the slippage problem of pure friction transmission. Combined with the precise speed control characteristics of the stepper motor 21, it can achieve smooth and controllable rotation of the rotating shaft 24, ensuring the consistency of related operations of the ash collection cylinder (such as ash cleaning and material conveying).

[0029] Specifically, please refer to Figure 5 , 6 As shown, in one embodiment of this utility model, a tensioning device 224 is provided on the outer side of the drive pulley 221. The tensioning device 224 is used to adjust the tension of the belt 223. The tensioning device 224 includes a tensioning base 2241 and a screw 2242 threadedly connected to the tensioning base 2241. The end of the screw 2242 passes through the tensioning base 2241 and is connected to the side wall of the motor seat 211 of the stepper motor 21, so as to push the stepper motor 21 to a position on the base plate 12.

[0030] In this embodiment, the tensioning base 2241 of the tensioning device 224 is fixed on the base plate 12, and the screw 2242 is threadedly engaged with the tensioning base 2241. The end of the screw 2242 is connected to the motor base 211 of the stepper motor 21. When the screw 2242 is rotated, the linear displacement characteristics of the threaded transmission are used to drive the stepper motor 21 to move horizontally along the base plate 12 (towards or away from the rotation shaft 24). The displacement of the stepper motor 21 drives the active pulley 221 to move synchronously, changing the center distance between the active pulley 221 and the driven pulley 222 (connected to the rotation shaft 24), thereby adjusting the tension of the belt 223.

[0031] When belt 223 becomes loose due to long-term use, vibration, or temperature changes, rotating screw 2242 pushes stepper motor 21 to move away from rotating shaft 24, increasing the center distance between the two pulleys, and belt 223 is stretched and tightened. When belt 223 has excessive tension, rotating screw 2242 in the opposite direction causes stepper motor 21 to move closer to rotating shaft 24 under the tension of belt 223, reducing the center distance and lowering belt 223 tension to a suitable range. After adjustment, belt 223 maintains stable tension, ensuring no slippage or deviation during power transmission.

[0032] Specifically, please refer to Figure 7 , 8 As shown in Figures 9 and 1, in one embodiment of this utility model, the rotating shaft 24 is located between the driven pulley 222 and the ash collection cylinder body 231 and is also vertically rotatably mounted on the base plate 12 via a bearing seat 4. The driven pulley 222 is axially limited and connected to the rotating shaft 24 by a plurality of synchronous pulley spacers 2221, and one end face of the synchronous pulley spacers 2221 abuts against the stepped stop end face of the rotating shaft 24, and the other end face abuts against the end face of the driven pulley 222.

[0033] In this embodiment, the rotating shaft 24 is vertically mounted on the base plate 12 via the bearing seat 4. The bearing seat 4 provides a fixed support reference for the rotating shaft 24, limits its radial displacement, and ensures that the rotating shaft 24 only rotates vertically along its own axis, avoiding radial swaying or offset during rotation.

[0034] Several synchronous pulley spacers 2221 are fitted on the rotating shaft 24. One end face abuts against the stepped stop end face of the rotating shaft 24, and the other end face abuts against the end face of the driven pulley 222. Through the axial limiting effect of the stepped stop and the fit of the end face of the spacer, the driven pulley 222 is fixed in the preset axial position of the rotating shaft 24, preventing it from moving along the axis of the rotating shaft 24.

[0035] The bearing housing 4 supports and the synchronous pulley spacer 2221 limits each other. First, the bearing housing 4 completes the radial positioning and rotational adaptation of the rotating shaft 24. Then, the spacer is used to fix the driven pulley 222 and the rotating shaft 24 axially, ensuring that the two rotate synchronously without relative displacement when the belt 223 is driven.

[0036] Specifically, please refer to Figure 9 As shown, in one embodiment of the present invention, the bottom of the bearing housing 4 is provided with an outer stop 41, and the bottom plate 12 is provided with a mounting hole 121 at the outer stop 41. The outer stop 41 is suitable for insertion into the mounting hole 121. The bearing housing 4 is provided with a bearing cavity inside, and a deep groove ball bearing 42 and a retaining ring 43 for the bore are installed in the bearing cavity. The deep groove ball bearing 42 is sleeved on the rotating shaft 24.

[0037] In this way, by matching the outer stop 41 with the mounting hole 121, the bearing housing 4 can be quickly aligned and installed without the need for complex positioning tools, reducing assembly difficulty and improving assembly efficiency; at the same time, the radial positioning is accurate, avoiding the problem of the rotating shaft 24 tilting due to the offset of the bearing housing 4.

[0038] The axial limiting effect of the elastic retaining ring 43 in the bore prevents the deep groove ball bearing 42 from axial displacement due to vibration or impact during operation, thus avoiding bearing damage or transmission failure. The fit between the outer stop 41 and the mounting hole 121 enhances the installation firmness of the bearing housing 4, reduces the risk of loosening during long-term operation, and extends the service life of the component.

[0039] Specifically, please refer to Figure 9 As shown, in one embodiment of the present invention, the ash removal cylinder 23 further includes a cylinder base 233 sleeved on the bottom of the ash collection cylinder body 231. The bottom center of the cylinder base 233 is provided with a positioning hole 2331, and the outer bottom center of the ash collection cylinder body 231 is provided with a protruding cylinder 2311, which is adapted to be accommodated in the positioning hole 2331.

[0040] During assembly and positioning, the protruding cylinder 2311 on the bottom of the ash collection cylinder body 231 is aligned with the positioning hole 2331 at the center of the bottom of the cylinder base 233, so that the protruding cylinder 2311 is embedded in the positioning hole 2331. Through the interlocking relationship of the concave and convex structure, the relative position of the ash collection cylinder body 231 and the cylinder base 233 is quickly defined.

[0041] After fitting, the protruding cylinder 2311 and the positioning hole 2331 form a radial constraint, ensuring that the ash collection cylinder body 231 and the cylinder base 233 are coaxially set. It can be further reinforced by welding, bolt fixing and other methods to form a stable overall structure.

[0042] When the rotating shaft 24 drives the ash collection cylinder body 231 to rotate, the cylinder base 233 rotates synchronously with the protruding cylinder 2311 through the positioning hole 2331, avoiding relative sliding between the two and ensuring the consistency of the overall rotation of the ash collection cylinder.

[0043] Specifically, please refer to Figure 9 As shown, in one embodiment of the present invention, a shaft disc hole 2332 located on the lower end face of the positioning hole 2331 is also provided at the bottom center of the cylindrical base 233, and a shaft disc 241 is also provided on the side of the rotating shaft 24 near the cylindrical base 233, and the shaft disc 241 is adapted to be accommodated in the shaft disc hole 2332.

[0044] During the docking and positioning process, the end of the rotating shaft 24 close to the cylindrical base 233 has its shaft disk 241 aligned with the shaft disk hole 2332 at the center of the bottom of the cylindrical base 233, so that the shaft disk 241 is embedded in the shaft disk hole 2332. By adapting the shape of the shaft disk 241 to the shaft disk hole 2332, the coaxial positioning of the rotating shaft 24 and the cylindrical base 233 is quickly completed.

[0045] When the rotating shaft 24 rotates, the shaft disk 241 directly transmits torque to the cylinder base 233 by fitting or engaging with the inner wall of the shaft disk hole 2332, causing the cylinder base 233 to rotate synchronously, and then driving the ash cylinder body 231 to rotate together through the connection structure between the cylinder base 233 and the ash cylinder body 231.

[0046] The shaft disc hole 2332 is located on the lower end face of the positioning hole 2331 and is coaxially arranged, so that the power transmission path of the rotating shaft 24 is consistent with the positioning reference of the ash collection cylinder body 231, and avoids eccentric force during power transmission.

[0047] As a preferred embodiment, the brush 232 is made of high-temperature resistant nylon filament material, which can meet the brush cleaning function requirements while also coping with high-temperature environments, thereby improving the brush's service life and operational reliability.

[0048] High-temperature resistant nylon filaments have a certain degree of hardness and elasticity. When made into brush 232, they can achieve the function of cleaning accumulated dust through contact and friction with the surface to be cleaned. At the same time, their high-temperature resistance allows the brush to maintain its shape stability in high-temperature working environments without softening, deformation or breakage.

[0049] Specifically, please refer to Figure 7 , 8 As shown in Figures 9 and 1, in one embodiment of this utility model, a brush cover 2312 is also provided on the outer periphery of the top of the ash collection cylinder body 231, and the brush cover 2312 is adapted to press against the root of the brush 232.

[0050] By pre-installing the base of the brush 232 at a preset mounting position on the top of the ash collection cylinder body 231, and then fitting the brush cap 2312 onto the outer periphery of the top of the ash collection cylinder body 231, the inner side of the cap presses against the base of the brush 232, fixing the brush base with mechanical clamping force. When the ash collection cylinder body 231 rotates, driving the brush 232 to clean the accumulated ash, the brush cap 2312 continuously presses against the brush base, restricting the displacement or shedding of the bristles along the base, ensuring that the bristles always maintain the preset extension angle and shape.

[0051] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this invention.

Claims

1. An automatic ash removal mechanism for moxa sticks, installed on an automatic moxibustion device, characterized in that, Includes the structural frame and plastering components; The structural frame includes a mounting bracket and a base plate fixedly connected to the top of the mounting bracket; The ash removal assembly includes a stepper motor, a belt drive assembly, an ash removal cylinder, and a rotating shaft with one end coaxially fixed to the bottom of the ash removal cylinder, all mounted on the base plate. The other end of the rotating shaft passes vertically through the base plate. The stepper motor passes vertically through one side of the base plate. One side of the belt drive assembly is driven by the stepper motor, and the other side is driven by the rotating shaft. The ash removal cylinder includes an ash collection cylinder body and brushes; the outer bottom center of the ash collection cylinder body is installed at the top of the rotating shaft, and multiple brushes are evenly distributed in the inner circumferential direction of the ash collection cylinder body; the stepper motor is adapted to drive the ash collection cylinder body to rotate via the belt drive assembly.

2. The automatic ash removal mechanism for moxa sticks according to claim 1, characterized in that, It also includes a photoelectric sensor located near the top of the ash collection cylinder body. The photoelectric sensor includes a transmitter and a receiver, and the transmitter and the receiver are positioned opposite each other on the top sides of the ash collection cylinder body.

3. The automatic ash removal mechanism for moxa sticks according to claim 1, characterized in that, The belt drive assembly includes a driving pulley, a driven pulley, and a belt connected to the output shaft of the stepper motor; the driven pulley is connected to the end of the rotating shaft away from the ash collection cylinder body, the driving pulley and the driven pulley are both located on the same side of the base plate, and the belt meshing drive is connected between the driving pulley and the driven pulley.

4. The automatic ash removal mechanism for moxa sticks according to claim 3, characterized in that, A tensioning device is provided on the outer side of the drive pulley. The tensioning device is used to adjust the tension of the belt. The tensioning device includes a tensioning base and a screw threadedly connected to the tensioning base. The end of the screw passes through the tensioning base and is connected to the side wall of the motor mount of the stepper motor, so as to push the stepper motor to a position on the base plate.

5. The automatic ash removal mechanism for moxa sticks according to claim 4, characterized in that, The rotating shaft is located between the driven pulley and the ash collection cylinder body and is also vertically rotatably mounted on the base plate via a bearing seat. The driven pulley is axially limited and connected to the rotating shaft by several synchronous pulley spacers, and one end face of the synchronous pulley spacer abuts against the stepped stop end face of the rotating shaft, while the other end face abuts against the end face of the driven pulley.

6. The automatic ash removal mechanism for moxa sticks according to claim 5, characterized in that, The bearing housing has an outer stop at its bottom, and the base plate has a mounting hole opposite the outer stop. The outer stop is suitable for insertion into the mounting hole. The bearing housing has a bearing cavity inside, in which a deep groove ball bearing and a retaining ring for the bore are installed, and the deep groove ball bearing is sleeved on the rotating shaft.

7. The automatic ash removal mechanism for moxa sticks according to claim 1, characterized in that, The ash removal cylinder also includes a cylinder base sleeved at the bottom of the ash collection cylinder body. A positioning hole is provided at the center of the bottom of the cylinder base. A protruding cylinder is provided at the center of the outer bottom of the ash collection cylinder body, and the protruding cylinder is adapted to be accommodated in the positioning hole.

8. The automatic ash removal mechanism for moxa sticks according to claim 7, characterized in that, The bottom center of the cylindrical base is also provided with a shaft disc hole located on the lower end face of the positioning hole, and the rotating shaft is also provided with a shaft disc on the side near the cylindrical base, the shaft disc being adapted to be accommodated in the shaft disc hole.

9. The automatic ash removal mechanism for moxa sticks according to claim 1, characterized in that, The brush is made of high-temperature resistant nylon filaments.

10. The automatic ash removal mechanism for moxa sticks according to claim 9, characterized in that, The top outer periphery of the ash collection cylinder body is also provided with a brush cover, which is adapted to press against the root of the brush.

Images