A grass fruit cleaning and grading integrated device
By designing an integrated device for cleaning and grading cardamom, the automated cleaning and grading of cardamom has been achieved, solving the problems of increased labor and low efficiency caused by separate cleaning and grading of cardamom, and improving work efficiency and economic benefits.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- INST OF MEDICINAL PLANTS YUNNAN ACAD OF AGRI SCI
- Filing Date
- 2024-03-25
- Publication Date
- 2026-04-21
AI Technical Summary
The cleaning and grading of cardamom are carried out in different processing areas, which rely on manual operation, resulting in increased labor costs and low work efficiency.
Design an integrated device for cleaning and grading cardamom, including impurity removal, soaking, fine washing and grading devices, to achieve automated processing. The device cleans the cardamom through tumbling, brushing and rinsing, and grades the cardamom using grading rollers.
It improved work efficiency, reduced the handling and damage of cardamom, lowered labor costs, and increased economic benefits and work efficiency.
Smart Images

Figure CN117960673B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the technical field of cardamom processing equipment, specifically relating to an integrated device for cleaning and grading cardamom. Background Technology
[0002] Cardamom, a plant belonging to the genus Cardamom in the ginger family, is mainly distributed in Yunnan, Guangxi, Guizhou, and Sichuan provinces of my country. As a traditional Chinese medicine and spice, it is abundant and has long been used in the processing of braised foods. Cardamom possesses antioxidant, gastrointestinal regulating, antibacterial, antitumor, and drug permeability altering effects, making it an important medicinal material. After harvesting, cardamom typically requires washing and drying. However, during washing, the uneven surface and thin outer shell of cardamom make it difficult to remove mud and stains. Furthermore, the common cardamom grades on the market are currently classified as premium, first-grade, second-grade, and third-grade, primarily based on fruit size. In existing technology, the washing and grading of cardamom are done in separate processing areas, all manually, increasing labor costs and reducing efficiency. Summary of the Invention
[0003] To overcome the problems in existing technologies where the cleaning and grading of cardamom are carried out in separate processing areas and manually, increasing labor costs and reducing work efficiency, this invention provides an integrated cardamom cleaning and grading device. Large quantities of harvested cardamom are transported to a debris removal device to remove impurities, and then soaked in a soaking device for cleaning. After soaking, the cardamom is retrieved by a conveyor belt and transported to a fine washing device, where it is rinsed through tumbling and brushing to ensure effective cleaning. After cleaning, it is graded by a grading device. The equipment features a high degree of automation, integrating impurity removal, cleaning, and grading for high efficiency, reducing cardamom handling and preventing damage. Since cardamom of different grades has varying unit prices, accurate grading improves economic benefits, reduces labor costs, lowers employee workload, and increases work efficiency.
[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: An integrated device for cleaning and grading cardamom mainly includes a debris removal device 1, a soaking device 2, a fine washing device 3, and a grading device 4. The soaking device 2 includes a soaking tank 21 and a scooping conveyor belt 22. The bottom and both sides of the discharge end of the soaking tank 21 are provided with chutes 23, and the scooping conveyor belt 22 is installed in the soaking device 2 along the chutes 23. The debris removal device 1 is installed at the feed end of the soaking tank 21. The fine washing device 3 includes a frame 31, cleaning brush rollers 32, and a spraying device 33. The cleaning brush rollers 32 are installed on the frame 31, and a spraying device 33 is formed between the cleaning brush rollers 32. The cardamom channel and spraying device 33 are installed on the frame 31, with the spraying device 33 positioned above the cleaning brush roller 32. The cardamom channel is connected to the end of the harvesting conveyor belt 22, and the grading device 4 is connected to the end of the cardamom channel. The grading device 4 includes a support frame 41, a grading roller 42, and a grading hopper 43. The grading roller 42 is rotatably mounted on the support frame 41 and has grading holes with progressively larger diameters along its axial direction. The grading hoppers 43 are sequentially arranged on the support frame 41 and are positioned below the grading roller 42. Conveying devices are installed below each grading hopper 43 and at the end of the grading roller 42.
[0005] Furthermore, the debris removal device 1 includes a support 11, a transmission roller 12, a washboard textured conveyor belt 13, and a debris removal motor 14. The transmission roller 12 is mounted on the support 11 via bearings, the washboard textured conveyor belt 13 is mounted on the transmission roller 12, and the debris removal motor 14 is mounted on the support 11 and is connected to the transmission roller 12 for transmission. Baffle plates 15 are installed on both sides of the support 11, and the baffle plates 15 are located on both sides of the washboard textured conveyor belt 13.
[0006] Furthermore, the washboard-patterned conveyor belt 13 is equipped with rake teeth 16.
[0007] Furthermore, a stiff brush roller 17 is installed on the front support 11 of the debris removal device 1, and the stiff brush roller 17 is located below the front end of the washboard conveyor belt 13.
[0008] Furthermore, the salvage conveyor belt 22 includes a conveyor chain 24, a limiting wheel 25, a mesh conveyor belt 26, a salvage motor 27, and a salvage scraper 28. The conveyor chain 24 is installed along the slide 23 by the limiting wheel 25. The shaft of the conveyor chain 24 is installed at both ends of the slide 23. The mesh conveyor belt 26 is installed on the conveyor chain 24. The salvage motor 27 is installed on the soaking tank 21 and is connected to the conveyor chain 24 for transmission. The salvage scraper 28 is evenly installed on the mesh conveyor belt 26. A guide chute 29 is installed at the end of the salvage conveyor belt 22.
[0009] Furthermore, the soaking tank 21 is provided with an overflow mesh 19, an overflow trough 18 is installed on the outside of the overflow mesh 19, and a drain pipe is provided at the bottom of the soaking tank 21.
[0010] Furthermore, the cleaning brush roller 32 includes a bottom support roller 321, a side limiting roller 322, and a top brushing roller 323. The bottom support roller 321, the side limiting roller 322, and the top brushing roller 323 are installed on the frame 31 at an incline and parallel to each other, and are all connected by a motor drive. The bristles of the bottom support roller 321 and the side limiting roller 322 are staggered to form a U-shaped groove, and the top brushing roller 323 is located in the U-shaped groove to form a grass fruit channel. Both ends of the grass fruit channel are provided with receiving grooves.
[0011] Furthermore, the spraying device 33 includes a circulating water spraying device 34 and a clean water spraying device 35. The circulating water spraying device 34 is installed on the top of the front half of the frame 31, and the clean water spraying device 35 is installed on the top of the rear half of the frame 31.
[0012] Furthermore, a water collection tank 36 is provided below the front half of the frame 31, and a circulating water tank 37 is provided below the rear half of the frame 31. The circulating water spraying device 34 is connected to the circulating water tank 37 via a water pump.
[0013] Furthermore, the top of the support frame 41 is provided with a cleaning brush 44 to prevent material from getting stuck in the grading holes. The cleaning brush 44 is driven by a cleaning motor. The grading roller 42 is provided with a spiral guide plate. The grading holes are waist-shaped holes that are spirally distributed along the material sliding direction.
[0014] Furthermore, a protective housing is installed on the frame 31 of the fine washing device 3; a protective cover is installed on the support frame 41 of the grading device 4.
[0015] The beneficial effects of this invention are:
[0016] Large quantities of harvested and purchased cardamom are transported to a debris removal device to remove impurities. After removal, the cardamom falls into a soaking device for cleaning. The soaked cardamom is then scooped up by a conveyor belt and transported to a fine washing device, where it is rinsed through tumbling and brushing to ensure effective cleaning. After cleaning, it is graded by a grading device. The equipment is highly automated, integrating impurity removal, cleaning, and grading, resulting in high work efficiency, reduced cardamom handling, and prevention of damage. Since cardamom of different grades has varying unit prices, accurate grading improves economic efficiency, reduces labor costs, lowers employee workload, and increases work efficiency. Attached Figure Description
[0017] Figure 1 This is a rear axonometric three-dimensional schematic diagram of the present invention.
[0018] Figure 2 This is a three-dimensional schematic diagram of the main axonometric projection of the present invention.
[0019] Figure 3This is a rear axonometric three-dimensional schematic diagram of the debris removal device and soaking device of the present invention.
[0020] Figure 4 yes Figure 3 A magnified schematic diagram of the structure at point A in the middle.
[0021] Figure 5 This is a three-dimensional schematic diagram of the impurity removal device and soaking device of the present invention.
[0022] Figure 6 This is a three-dimensional cross-sectional view of the debris removal device and soaking device of the present invention.
[0023] Figure 7 yes Figure 6 A magnified schematic diagram of the structure at point B in the middle.
[0024] Figure 8 This is a three-dimensional schematic diagram of the fine washing device of the present invention.
[0025] Figure 9 This is a three-dimensional cross-sectional view of the fine washing device of the present invention.
[0026] Figure 10 This is a three-dimensional schematic diagram of the grading device of the present invention.
[0027] Figure 11 This is a full cross-sectional schematic diagram of the grading device of the present invention. Detailed Implementation
[0028] To make the objectives, technical solutions, and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so as to facilitate understanding by those skilled in the art.
[0029] This invention discloses an integrated device for cleaning and grading cardamom. The integrated device mainly includes a debris removal device 1, a soaking device 2, a fine washing device 3, and a grading device 4. The soaking device 2 includes a soaking tank 21 and a scooping conveyor belt 22. The bottom and both sides of the discharge end of the soaking tank 21 are provided with grooves 23. The scooping conveyor belt 22 is installed inside the soaking device 2 along the grooves 23. The debris removal device 1 is installed at the feed end of the soaking tank 21. The fine washing device 3 includes a frame 31, cleaning brush rollers 32, and a spraying device 33. The cleaning brush rollers 32 are installed on the frame 31, forming a cardamom channel between them. The spraying device 33 is installed on the frame 31 and is positioned above the cleaning brush rollers 32. The cardamom channel is connected to the end of the scooping conveyor belt 22, and the grading device 4 is connected to the end of the cardamom channel. The grading device 4 includes a support frame 41, a grading roller 42, and a grading hopper 43. The grading roller 42 is rotatably mounted on the support frame 41. The grading roller 42 has grading holes with progressively larger diameters along its axial direction. Grading hoppers 43 are arranged sequentially on the support frame 41, positioned below the grading roller 42. Conveying devices are installed below each grading hopper 43 and at the end of the grading roller 42. Large quantities of harvested and purchased cardamom are conveyed to a debris removal device. After debris removal, the cardamom falls into a soaking device for cleaning. The soaked cardamom is then retrieved by a conveyor belt and transported to a fine washing device, where it is rinsed through tumbling and brushing to ensure effective cleaning. After cleaning, it is graded by a grading device. The equipment is highly automated, integrating impurity removal, cleaning, and grading, resulting in high work efficiency, reduced cardamom handling, and prevention of damage. Since cardamom of different grades has varying unit prices, accurate grading improves economic efficiency, reduces labor costs, lowers employee workload, and increases work efficiency.
[0030] The aforementioned debris removal device 1 includes a support 11, a transmission roller 12, a washboard-patterned conveyor belt 13, and a debris removal motor 14. The transmission roller 12 is mounted on the support 11 via bearings, the washboard-patterned conveyor belt 13 is mounted on the transmission roller 12, and the debris removal motor 14 is mounted on the support 11 and connected to the transmission roller 12. Baffle plates 15 are installed on both sides of the support 11, and the baffle plates 15 are located on both sides of the washboard-patterned conveyor belt 13. The cardamom is conveyed to the washboard-patterned conveyor belt 13, where the cardamom and debris (soil, roots, branches, leaves, etc.) are dispersed. The cardamom rolls downwards into the soaking tank 21, while the debris does not have good rolling ability. The debris is then conveyed by the washboard-patterned conveyor belt to the top of the debris removal device 1 and discharged.
[0031] The washboard-patterned conveyor belt 13 is equipped with rake teeth 16 to improve the ability to catch root and stem debris and ensure the removal effect.
[0032] The front support 11 of the debris removal device 1 is equipped with a hard bristle brush roller 17. The hard bristle brush roller 17 is located below the front end of the washboard conveyor belt 13. By rotating the hard bristle brush roller 17, debris on the washboard conveyor belt 13 is cleaned.
[0033] The salvage conveyor belt 22 includes a conveyor chain 24, a limiting wheel 25, a mesh conveyor belt 26, a salvage motor 27, and a salvage scraper 28. The conveyor chain 24 is installed along the slide 23 by the limiting wheel 25 to ensure the smooth operation of the mesh conveyor belt 26. The shaft of the conveyor chain 24 is installed at both ends of the slide 23. The mesh conveyor belt 26 is installed on the conveyor chain 24. The salvage motor 27 is installed on the soaking tank 21 and is connected to the conveyor chain 24 for transmission. The salvage scraper 28 is evenly installed on the mesh conveyor belt 26. A guide chute 29 is installed at the end of the salvage conveyor belt 22.
[0034] The soaking tank 21 is provided with an overflow mesh 19, and an overflow trough 18 is installed on the outside of the overflow mesh 19. The bottom of the soaking tank 21 is provided with a drain pipe to prevent the cardamom from overflowing due to overfilling.
[0035] The cleaning roller 32 includes a bottom support roller 321, a side limiting roller 322, and a top washing roller 323. The bottom support roller 321, the side limiting roller 322, and the top washing roller 323 are installed on the frame 31 at an angle and parallel to each other, and are all connected by a motor drive. The bristles of the bottom support roller 321 and the side limiting roller 322 are staggered to form a U-shaped groove. The top washing roller 323 is located in the U-shaped groove to form a cardamom channel. Both ends of the cardamom channel are provided with receiving grooves. By tumbling, brushing, and rinsing the cardamom in the cardamom channel, the cleaning effect is ensured and the hard collision between the cardamom and the equipment is reduced.
[0036] The spraying device 33 includes a circulating water spraying device 34 and a clean water spraying device 35. The circulating water spraying device 34 is installed on the top of the front half of the frame 31, and the clean water spraying device 35 is installed on the top of the rear half of the frame 31. The circulating water spraying device 34 uses water circulation spraying to reduce the amount of clean water used and save water resources; the clean water spraying device 35 uses clean water spraying for cleaning to ensure cleaning effect.
[0037] The frame 31 has a water collection tank 36 at the bottom of the front half and a circulating water tank 37 at the bottom of the rear half. The circulating water spray device 34 is connected to the circulating water tank 37 through a water pump to collect the water used by the clean water spray device 35 at the rear half of the frame 31 for spraying and cleaning. The water used by the clean water spray device 35 at the rear half of the frame 31 is relatively clear, making reasonable use of the circulating water.
[0038] The support frame 41 is equipped with a cleaning brush 44 at the top to prevent material from getting stuck in the grading holes. The cleaning brush 44 is driven by a cleaning motor. During the grading process, cardamom slightly larger than the grading holes will get stuck in the grading holes due to mutual compression. The pressure and brushing of the cleaning brush 44 at the top can effectively clean the stuck material and ensure the grading effect. The grading roller 42 is equipped with a spiral guide plate, which guides the cardamom to roll along the spiral line as much as possible in the grading roller 42. This helps to extend the rolling path of the cardamom, fully grading and sorting, and ensuring the grading effect. The grading holes are waist-shaped holes, spirally distributed along the material sliding direction, which helps to improve the grading effect.
[0039] The frame 31 of the fine washing device 3 is equipped with a protective shell; the support frame 41 of the grading device 4 is equipped with a protective cover.
[0040] Work process:
[0041] Large quantities of harvested cardamom are conveyed to the debris removal device. The cardamom and debris (soil, roots, leaves, etc.) are dispersed on the washboard-patterned conveyor belt 13. The cardamom rolls downwards into the soaking tank 21, while the debris, lacking good rolling ability, is conveyed by the washboard-patterned conveyor belt to the top of the debris removal device 1 and discharged. The rake teeth 16 enhance the ability to trap root and stem debris, and the rotating stiff-bristled brush roller 17 cleans the debris from the washboard-patterned conveyor belt 13, ensuring effective debris removal. After debris removal... The cardamom is immersed in a soaking device for easy cleaning. After soaking, it is scooped up by a conveyor belt and transported to a fine washing device, where it is rinsed through tumbling and brushing. The tumbling, brushing, and rinsing of the cardamom within the cardamom channel ensures effective cleaning and reduces hard collisions between the cardamom and the equipment. The circulating water spray device 34 uses water circulation spraying to reduce water consumption and conserve water resources. The clean water spray device 35 uses clean water spraying to ensure effective cleaning. The clean water spray device 35 on the rear half of the frame 31 is then cleaned. Water is collected and used for spray cleaning by the circulating water spray device 34. The water from the latter half of the clean water spray device 35 is relatively clear, making reasonable use of the circulating water. After cleaning, the grass is graded by a grading device. During the grading process, grass fruits slightly larger than the grading holes will get stuck in the grading holes due to mutual compression. The pressure and brushing of the top cleaning brush 44 can effectively clean the stuck materials and ensure the grading effect. The grading roller 42 is equipped with a spiral guide plate, which guides the grass fruits to roll along the spiral line as much as possible in the grading roller 42, which helps to extend the rolling path of the grass fruits, fully grade and sort them, and ensure the grading effect. The grading holes are waist-shaped holes, spirally distributed along the sliding direction of the materials, which helps to improve the grading effect. The equipment has a high degree of automation, integrating impurity removal, cleaning and grading, with high work efficiency, reducing grass fruit handling and avoiding grass fruit damage. The unit price of grass fruits of different grades is different. Precise grading helps to improve economic benefits. It also helps to reduce labor costs, reduce the labor intensity of employees and improve work efficiency.
[0042] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.
Claims
1. An integrated device for cleaning and grading cardamom, characterized in that: The integrated cardamom cleaning and grading device includes a debris removal device (1), a soaking device (2), a fine washing device (3), and a grading device (4). The soaking device (2) includes a soaking tank (21) and a scooping conveyor belt (22). The bottom and both sides of the discharge end of the soaking tank (21) are provided with chutes (23). The scooping conveyor belt (22) is installed in the soaking device (2) along the chutes (23). The debris removal device (1) is installed at the feed end of the soaking tank (21). The fine washing device (3) includes a frame (31), cleaning brush rollers (32), and a spraying device (33). The cleaning brush rollers (32) are installed on the frame (31), and a cardamom channel is formed between the cleaning brush rollers (32). The spraying device (33) is installed on the frame (31). 3) Installed on the frame (31), the spraying device (33) is above the cleaning brush roller (32), the cardamom channel is connected to the end of the harvesting conveyor belt (22), and the grading device (4) is connected to the end of the cardamom channel; the grading device (4) includes a support frame (41), a grading roller (42), and a grading hopper (43). The grading roller (42) is rotatably installed on the support frame (41). The grading roller (42) has grading holes with progressively larger diameters along the axial direction. The grading hoppers (43) are arranged sequentially on the support frame (41). The grading hoppers (43) are located below the grading roller (42). Conveying devices are installed below each grading hopper (43) and at the end of the grading roller (42). The aforementioned debris removal device (1) includes a support (11), a transmission roller (12), a washboard textured conveyor belt (13), and a debris removal motor (14). The transmission roller (12) is mounted on the support (11) via bearings. The washboard textured conveyor belt (13) is mounted on the transmission roller (12). The debris removal motor (14) is mounted on the support (11) and is connected to the transmission roller (12) for transmission. Baffle plates (15) are installed on both sides of the support (11). The baffle plates (15) are located on both sides of the washboard textured conveyor belt (13). The cleaning brush roller (32) includes a bottom support roller (321), a side limiting roller (322), and a top brushing roller (323). The bottom support roller (321), the side limiting roller (322), and the top brushing roller (323) are installed on the frame (31) at an incline and parallel to each other, and are all connected by a motor drive. The bristles of the bottom support roller (321) and the side limiting roller (322) are staggered to form a U-shaped groove. The top brushing roller (323) is located in the U-shaped groove to form a grass fruit channel. Both ends of the grass fruit channel are provided with receiving grooves.
2. The integrated device for cleaning and grading cardamom as described in claim 1, characterized in that: The washboard-patterned conveyor belt (13) is equipped with rake teeth (16).
3. The integrated device for cleaning and grading cardamom as described in claim 1 or 2, characterized in that: The front support (11) of the debris removal device (1) is equipped with a hard bristle brush roller (17), which is located below the front end of the washboard conveyor belt (13).
4. The integrated device for cleaning and grading cardamom as described in claim 3, characterized in that: The salvage conveyor belt (22) includes a conveyor chain (24), a limiting wheel (25), a mesh conveyor belt (26), a salvage motor (27), and a salvage scraper (28). The conveyor chain (24) is installed along the slide groove (23) by the limiting wheel (25). The shaft of the conveyor chain (24) is installed at both ends of the slide groove (23). The mesh conveyor belt (26) is installed on the conveyor chain (24). The salvage motor (27) is installed on the soaking tank (21) and is connected to the conveyor chain (24) for transmission. The salvage scraper (28) is evenly installed on the mesh conveyor belt (26). A guide chute (29) is installed at the end of the salvage conveyor belt (22).
5. The integrated device for cleaning and grading cardamom as described in claim 4, characterized in that: The soaking tank (21) is provided with an overflow mesh (19), an overflow trough (18) is installed on the outside of the overflow mesh (19), and a sewage pipe is provided at the bottom of the soaking tank (21).
6. The integrated device for cleaning and grading cardamom as described in any one of claims 1, 2, 4, and 5, characterized in that: The spraying device (33) includes a circulating water spraying device (34) and a clean water spraying device (35). The circulating water spraying device (34) is installed on the top of the front half of the frame (31), and the clean water spraying device (35) is installed on the top of the rear half of the frame (31).
7. The integrated device for cleaning and grading cardamom as described in claim 6, characterized in that: The frame (31) is provided with a water collection tank (36) at the bottom of the front half and a circulating water tank (37) at the bottom of the rear half. The circulating water spray device (34) is connected to the circulating water tank (37) through a water pump.
8. The integrated device for cleaning and grading cardamom as described in any one of claims 1, 2, 4, 5, and 7, characterized in that: The support frame (41) is provided with a cleaning brush (44) at the top to prevent material from getting stuck in the grading holes. The cleaning brush (44) is driven by a cleaning motor. The grading roller (42) is provided with a spiral guide plate. The grading holes are waist-shaped holes and are spirally distributed along the material sliding direction.
Citation Information
Patent Citations
Dried fruit cleaning and drying device and method thereof
CN103989238A
Cleaning and impurity removing device for primary processing of agricultural products
CN113909178A