A mugwort combing and leaf-removing machine

Abstract

This invention discloses a mugwort combing and defoliation machine. Using flexible rubber teeth as the combing components, it reduces impact on the mugwort stalks during defoliation, preventing damage. It can comb and separate multiple stalks, with adjacent rubber teeth continuously rubbing the mugwort leaves and pressing them onto the silicone sleeves of the rollers for pulling, thus removing the leaves. This invention integrates high efficiency, precision, and adaptability, specifically designed to solve the problems of high labor costs, long processing times, and low efficiency in mugwort defoliation. One of its core components is the defoliation device, which achieves efficient defoliation of mugwort through a precise mechanical structure and working principle. This invention also possesses good adaptability, capable of handling different varieties and moisture contents of mugwort, providing strong technical support for the mechanization and automation of mugwort defoliation.

Description

Technical Field

[0001] This invention belongs to the field of agricultural machinery automation, specifically relating to a mugwort combing and defoliating machine. Background Technology

[0002] Artemisia argyi, as a traditional Chinese medicine, has extremely high medicinal value and its popularity is constantly increasing. In production, artemisia leaves are obtained by drying, dehydrating, and then removing the leaves from harvested artemisia. Currently, the leaf removal work is almost entirely done manually, taking up about 65% of the entire harvesting time. The leaf removal efficiency is about 40 stalks per person per minute, and the manual cost is about 120 yuan per person per day. Therefore, using a leaf removal machine is the most suitable method.

[0003] The physical and mechanical properties of mugwort vary considerably depending on the variety and moisture content. The length of the stems and leaves and their mechanical properties after drying will differ depending on the moisture content. Dried mugwort is more prone to cracking when compressed or impacted; the petioles are less resilient, and the direction of force applied to them may also change to some extent, making them more susceptible to breakage.

[0004] In recent years, experts and scholars have developed defoliation machinery for the core process of mugwort defoliation. However, most of these machines are based solely on repeated practical experience and lack systematic research. The efficiency and quality of defoliation per pass are difficult to guarantee, and the problems of long processing time, low efficiency, and high cost in mugwort defoliation have not yet been solved. Furthermore, these machines have significantly dampened farmers' enthusiasm for cultivating mugwort and hindered the development of the mugwort industry. Therefore, promoting the mechanization of mugwort defoliation is necessary. Summary of the Invention

[0005] To address the aforementioned problems, the present invention aims to provide a mugwort combing and defoliation machine that enables rapid, precise defoliation and adaptability to various row widths, thereby improving the defoliation rate.

[0006] To solve the above technical problems, the present invention adopts the following technical solution:

[0007] A flexible defoliation device for Artemisia argyi includes a brush roller assembly and a frame. Two brush roller assemblies are mounted vertically side by side on the frame. Multiple rows of flexible toothed belts are sleeved side by side on the outer surface of the brush roller assembly. Multiple flexible brush teeth are evenly arranged on the outer surface of the toothed belts. The brush teeth on the multiple rows of toothed belts are irregularly staggered.

[0008] The brush roller assembly is used to drive the toothed belt to rotate in a vertical plane. The toothed belts of the two brush roller assemblies are adjacent and the brush teeth are staggered. The middle gap between the two brush roller assemblies forms the feeding area. The two brush roller assemblies are used to rotate in the same direction and comb and remove leaves from the mugwort that enters the feeding area.

[0009] Furthermore, in its natural state, the brush teeth are inclined radially at 30 to 40 degrees.

[0010] Furthermore, the brush roller assembly includes a drive roller, a driven roller, and a mounting plate. Both the drive roller and the driven roller are mounted on the mounting plate, and the outer surfaces of the drive roller and the driven roller are provided with multiple axial positioning grooves. The toothed belt is sleeved in the positioning grooves. The mounting height of the driven roller on the mounting plate is adjustable. By changing the mounting height of the driven roller, the toothed belt can be stretched, thereby adjusting the tension of the toothed belt and the height of the feeding area.

[0011] Furthermore, both the driving roller and the driven roller are rubber rollers.

[0012] Furthermore, the spacing between two adjacent toothed belts on the brush roller assembly is 3–5 mm.

[0013] Furthermore, the frame includes a fixed frame and a movable frame. The movable frame is detachably mounted on the fixed frame. The two brush roller assemblies are respectively mounted on the fixed frame and the movable frame. By changing the horizontal mounting position of the movable frame on the fixed frame, the distance between the two brush roller assemblies can be changed, thereby adjusting the width of the feeding area.

[0014] Furthermore, the toothed belt is made of rubber material with an HRA of 30 to 50 degrees, and the inner side of the toothed belt is provided with positioning protrusions that cooperate with the positioning groove.

[0015] The beneficial effects of this invention are as follows:

[0016] This invention employs a combination of rubbing and brushing for leaf removal. Specifically, the device is equipped with an engine, a power transmission device, and flexible brush elements, which work together to complete the leaf removal task. The mugwort is manually fed between two sets of rotating flexible brush elements. During this process, the flexible elements scrape against the mugwort. As the mugwort continues to move forward, the two flexible elements continuously rub and scrape against it, causing the leaves to fall off. Due to the softness of the elements and the moderate force, this process is sufficient to quickly detach some of the looser leaves. Simultaneously, the squeezing force generated by the flexible elements forces the mugwort against the brush rollers and brush teeth on both sides. This rubbing force effectively breaks the petioles of the mugwort leaves, thus achieving a deeper leaf removal effect.

[0017] The entire defoliation process of this invention ensures thorough defoliation while avoiding excessive damage to the stems and leaves of the mugwort, fully demonstrating the ingenuity and efficiency of the defoliation device design. Furthermore, the device possesses good adaptability; by adjusting the height and width of the feeding area, it can be applied to different varieties of mugwort with varying moisture contents, providing strong technical support for the mechanization and automation of mugwort defoliation operations.

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the Artemisia argyi combing and leaf-removing machine of the present invention;

[0020] Figure 2 This is a schematic diagram of the brush roller assembly structure;

[0021] Figure 3 This is a schematic diagram of the frame structure;

[0022] Figure 4 This is a schematic diagram of the rubber roller structure;

[0023] Figure 5 This is a schematic diagram of the toothed belt structure;

[0024] Figure 6 This is a schematic diagram of the mounting plate structure.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] The components include: 1. Drive sprocket; 2. Frame; 3. Motor; 4. Observation cover; 5. Movable cover; 6. Chain; 7. Driven sprocket; 8. Brush roller assembly; 9. Chain box; 10. Toothed belt; 11. Movable bearing seat; 12. Mounting plate; 13. Rubber roller; 14. Fixed bearing seat; 15. Fixed frame; 16. Positioning baffle; 17. Movable frame; 18. Adjustment device; 19. Motor mounting base; 20. Mandrel; 21. Rubber layer; 22. Positioning groove; 23. Brush teeth; 24. Positioning protrusion; 25. Mounting plate body; 26. Lower bend edge; 27. Side bend edge; 28. Upper bend edge. Detailed Implementation

[0027] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0028] In the description of this invention, it should be noted that the terms "upper", "lower", "vertical", "horizontal", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0029] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] Furthermore, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1-4 As shown, a defoliation device for Artemisia argyi combing and brushing comprises a brush roller assembly 8, a frame 2, a movable cover 5, an observation cover 4, a motor 3, a drive sprocket 1, a driven sprocket 7, a chain 6, and a chain box 9. The brush roller assemblies 8 are mounted opposite each other on the left and right sides, respectively connected to the movable frame 17 and the fixed frame 15 of the frame 2 via bolts on the side and bottom. The spacing between the opposing brush roller assemblies 8 can be changed by adjusting the position of the movable frame 17 by tightening or loosening the lower bolts. The motor 3 is mounted on the side of the middle layer of the frame 2 and connected to the motor mounting bracket 19 on the frame 2 via bolts. The motor 3 has a drive sprocket 1 mounted on it, which is connected to the driven sprocket 7 mounted on the brush roller assembly 8 via the chain 6. The movable cover 5 is connected to the upper crossbeam of the frame 2 via a hinge. The observation cover 4 is welded to the middle layer of the frame 2, with an observation port in the center, and a transparent acrylic plate is fixed to it by bolts. The chain box 9 is fixed to the frame 2 by bolts and is used to enclose the chain 6 and sprocket.

[0033] The brush roller assembly 8 includes a rubber roller 13, a toothed belt 10, a mounting plate 12, a fixed bearing seat 14, and an adjusting bearing seat 11. The brush roller assembly 8 adopts a modular design, allowing for direct replacement of the entire assembly module, simplifying the replacement process and reducing replacement time. The fixed bearing seat 14 and the adjusting bearing seat 11 are bolted to the mounting plate 12. The upper and lower rubber rollers 13 are respectively mounted on the adjusting bearing seat 11 and the fixed bearing seat 14. The toothed belt 10 is simultaneously fitted onto both rubber rollers 13. The positioning protrusions 24 of the toothed belt 10 engage with the positioning grooves 22 of the rubber rollers 13. The toothed belts 10 of the left and right sets of brush roller assemblies 8 are installed in opposite directions, with a spacing of 5mm between adjacent brush teeth 23. The adjusting bearing seat 11 is used to adjust the installation height of the upper rubber roller 13 to tension the toothed belt 10. Height adjustment can be achieved by adjusting the positioning nut of the lead screw. In this embodiment, the installation height adjustment range of the upper rubber roller 13 is 12 cm.

[0034] The frame 2 mainly includes a fixed frame 15 and a movable frame 17. Both parts of the frame are welded from 304 square steel pipes and equipped with positioning baffles 16. The movable frame 17 is placed above the middle layer of the fixed frame 15 and is connected to the fixed frame 15 by bolts. The movable frame 17 can be moved left and right by tightening and loosening the fixing bolts and adjusting the position adjustment device 18. The positioning baffles 16 can be used for quick positioning and constraint during the installation of the frame 2 and brush roller assembly 8 to prevent back-and-forth sliding. A motor mounting base 19 is welded on the frame 2, which works with the square steel pipes of the frame 2 to fix the position of the motor 3. In this embodiment, the lateral movement range of the movable frame 17 is 2cm.

[0035] In one embodiment, the spindle 20 of the rubber roller 13 is made of 304 stainless steel, and the spindle 20 is wrapped with a rubber layer 21 of HRA50-60 degrees. The roller diameter is 80mm, the roller length is 500mm, and the roller has a positioning groove 22 with a radius of 5mm for positioning the toothed belt 10. The axial spacing of the positioning groove 22 is 26-30mm, and there are 16 grooves distributed axially.

[0036] As one implementation method, such as Figure 5 As shown, the toothed belt 10 is made of rubber with an HRA of 30 to 50 degrees, with a total width of 26 to 30 mm. The toothed belt 10 has 16 brush teeth 23 evenly distributed around its circumference. The brush teeth 23 are offset from the center plane by 7.5 mm and are inclined radially at 30 to 40 degrees. The brush teeth 23 are 80 mm long and 10 mm in diameter. The top of the brush teeth 23 is rounded by 5 mm. A positioning protrusion 24 is provided at the center of the inner circle of the toothed belt 10 to position the toothed belt 10 and prevent the toothed belt 10 from running off-center during operation.

[0037] As one implementation method, such as Figure 6As shown, the mounting plate 12 is made of 304 stainless steel plate and has bearing seat mounting holes and rubber roller shaft through holes. The lower side 26, side side 27 and upper side 28 of the mounting plate body 25 are bent. The lower side 26 and side side 27 are bent outward and have bolt connection holes for connecting with the frame 2. The upper side 28 is bent inward to position the movable cover 5.

[0038] This invention uses flexible rubber teeth as a combing component, which can reduce the impact on the mugwort stalks during the leaf removal process and avoid damage to the mugwort stalks. It can comb and separate multiple crops. The adjacent rubber teeth can continuously rub the mugwort leaves, or press the mugwort leaves onto the silicone sleeves of the rollers and pull them, thereby completing the leaf removal work.

[0039] In this embodiment, when removing leaves from Artemisia argyi, the roller speed is 65 r / min and the roller spacing is 60 mm. The person holds the upper part of the Artemisia argyi with the leaves still attached and feeds the lower part of the removed leaves into the working area of ​​the mechanical Artemisia argyi flexible defoliation device. Each time, 10 to 20 Artemisia argyi are fed in. After two feedings in one direction, the defoliation rate of Artemisia argyi is greater than 90%, the stem damage rate is less than 5%, and the defoliation efficiency is 60 to 120 stems / min.

[0040] This invention is characterized by high efficiency, precision, and versatility, and is specifically designed to solve the problems of high labor costs, long processing times, and low efficiency in the process of removing leaves from mugwort. One of its core components is the leaf-removing device, which achieves highly efficient leaf removal of mugwort through a precise mechanical structure and working principle.

[0041] The above description provides examples of the preferred embodiments of the present invention. Parts not detailed herein are common knowledge to those skilled in the art. The scope of protection of the present invention is determined by the claims. Any equivalent modifications based on the technical teachings of the present invention are also within the scope of protection of the present invention.

Claims

1. A flexible defoliation device for Artemisia argyi, characterized in that, Includes a brush roller assembly (8) and a frame (2). Two brush roller assemblies (8) are mounted vertically side by side on the frame (2). Multiple rows of flexible toothed belts (10) are sleeved side by side on the outer surface of the brush roller assembly (8). Multiple flexible brush teeth (23) are evenly arranged on the outer surface of the toothed belts (10). The brush teeth (23) on the multiple rows of toothed belts (10) are irregularly staggered. The brush roller assembly (8) is used to drive the toothed belt (10) to rotate in the vertical plane. The toothed belts (10) of the two brush roller assemblies (8) are adjacent and the brush teeth (23) are staggered. The middle gap between the two brush roller assemblies (8) forms the feeding area. The two brush roller assemblies (8) are used to rotate in the same direction and comb and remove leaves from the mugwort that enters the feeding area. The brush roller assembly (8) includes a drive roller, a driven roller, and a mounting plate (12). Both the drive roller and the driven roller are mounted on the mounting plate (12), and the outer surfaces of the drive roller and the driven roller are provided with multiple positioning grooves (22) along the axial direction. The toothed belt (10) is sleeved in the positioning grooves (22). The mounting height of the driven roller on the mounting plate (12) is adjustable. By changing the mounting height of the driven roller, the toothed belt (10) can be stretched, and the tightness of the toothed belt (10) and the height of the feeding area can be adjusted.

2. The flexible defoliation device for Artemisia argyi according to claim 1, characterized in that, In its natural state, the toothed band (10) has the brush teeth (23) tilted radially at 30 to 40 degrees.

3. The flexible defoliation device for Artemisia argyi according to claim 1, characterized in that, Both the driving roller and the driven roller are rubber rollers.

4. The flexible defoliation device for Artemisia argyi according to claim 1, characterized in that, The spacing between two adjacent toothed belts (10) on the brush roller assembly (8) is 3~5mm.

5. The flexible defoliation device for Artemisia argyi according to claim 1, characterized in that, The frame (2) includes a fixed frame (15) and a movable frame (17). The movable frame (17) is detachably mounted on the fixed frame (15). Two brush roller assemblies (8) are respectively mounted on the fixed frame (15) and the movable frame (17). By changing the horizontal mounting position of the movable frame (17) on the fixed frame (15), the distance between the two brush roller assemblies (8) can be changed, thereby adjusting the width of the feeding area.

6. The flexible defoliation device for Artemisia argyi according to claim 1, characterized in that, The toothed belt (10) is made of rubber material with an HRA of 30~50 degrees, and the inner side of the toothed belt (10) is provided with a positioning protrusion (24) that cooperates with the positioning groove (22).

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