Efficient grader for tartary buckwheat production line
By designing flexible filter cloth and adjustable screening components, the problems of low efficiency and poor adaptability of traditional buckwheat grading are solved, realizing a highly efficient and automated screening and grading process, and improving product purity and yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-18
- Publication Date
- 2026-03-10
AI Technical Summary
Traditional buckwheat products are inefficient and have poor adaptability in the screening and grading process, which can easily lead to sieve blockage or incomplete screening, affecting product purity and yield.
By employing flexible filter cloth and adjustable screening components, and by independently adjusting the screening shaft spacing, sliding head extension length and amplitude, combined with multi-stage vibrating screening and transfer components, precise control of dynamic screen surface morphology and automated continuous operation can be achieved.
It improves the efficiency and adaptability of buckwheat grading, ensures thorough screening and product purity, and realizes fully automated operation from impurity removal to particle size classification.
Smart Images
Figure CN121624084A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of buckwheat product production technology, and more specifically, to a high-efficiency grading machine for buckwheat production lines. Background Technology
[0002] Buckwheat is a highland crop with both medicinal and edible uses, and its products possess both nutritional and health benefits. Buckwheat products are mainly divided into three categories: First, staple foods and beverages, such as buckwheat rice and buckwheat noodles, which can be eaten directly as staple foods; buckwheat tea and buckwheat powder are common beverage choices, with a unique roasted aroma. Second, processed foods, including buckwheat noodles, buckwheat pastries, and other convenience foods, as well as condiments such as buckwheat vinegar and buckwheat soy sauce. Third, health products, such as capsules and tablets made from buckwheat extract, and buckwheat soap for skincare, which fully utilize the health benefits of flavonoids in buckwheat.
[0003] Before production, buckwheat products need to be screened to remove impurities, followed by grading. Different grades of buckwheat are made into different types of products. Traditional buckwheat product grading mainly relies on fixed-specification screens or simple vibrating screens. The disadvantages of this method are low screening efficiency and poor adaptability. Due to the fixed screen surface shape and motion parameters, it is easy to cause screen hole blockage or incomplete screening, resulting in impurity residue or loss of qualified materials, which affects product purity and yield. Therefore, in order to solve the above problems, a high-efficiency grading machine for buckwheat production lines is proposed. Summary of the Invention
[0004] To overcome the above-mentioned defects, embodiments of the present invention provide a high-efficiency grading machine for a buckwheat production line, which solves the technical problem of limited impurity removal and grading effects in related technologies / existing technologies.
[0005] According to one aspect, at least one embodiment of the present invention provides a high-efficiency grading machine for a buckwheat production line, comprising: a high-efficiency grading machine for a buckwheat production line, including a cleaning chamber, wherein a flexible filter cloth is installed in the cleaning chamber; The adjusting screening component is located inside the impurity removal chamber and is used to adjust the shape of the flexible filter cloth. It includes symmetrically arranged guide rails, and multiple independently rotating screening shafts are equidistantly arranged on the two guide rails. The distance between the multiple screening shafts is equidistantly adjustable. Each of the multiple screening shafts is equipped with a set of top cylinders, and each set of top cylinders consists of multiple cylinders equidistantly arranged. A sliding head is slidably sealed inside the top cylinder. The length of the sliding head extending out of the top cylinder can be independently adjusted to change the tilt angle of the flexible filter cloth in multiple directions and the peak amplitude along the length of the guide rail. The spacing between multiple sets of sliding heads can be adjusted at equal intervals to change the wave crest period of the flexible filter cloth along the length of the guide rail. Furthermore, multiple sets of sliding heads can simultaneously approach one side of the inner wall of the impurity removal chamber. Adjusting the spacing between multiple sets of sliding heads and the extension length of a single sliding head can adapt to different shapes of the flexible filter cloth. A transfer chamber is fixedly installed at the bottom of the impurity removal chamber; The transfer assembly is located inside the transfer chamber and is used to transfer the sieved buckwheat for subsequent grading.
[0006] For example, in at least one embodiment of the present invention, a high-efficiency grading machine for a buckwheat production line is provided, which further includes: a splash guard fixedly connected to the top of the impurity removal bin, a grading bin fixedly installed at the bottom of the transfer bin, a spring bracket and an ash hopper fixedly installed at the bottom of the grading bin, and a plurality of vibration motors installed on the spring bracket.
[0007] For example, in at least one embodiment of the present invention, a high-efficiency grading machine for a buckwheat production line is provided, which further includes: the adjusting screening component includes a limiting slide groove opened on the side of the impurity removal bin, a plurality of limiting slide seats are equidistantly slidably arranged on the inner side of the limiting slide groove, a drive motor is fixedly installed on the inner side of the limiting slide seats, and the output end of the drive motor is fixedly installed with the screening shaft.
[0008] For example, in at least one embodiment of the present invention, a high-efficiency grading machine for a buckwheat production line is provided, which further includes: a support plate symmetrically and fixedly connected to the bottom of the impurity removal bin; guide rails symmetrically and fixedly installed on the two support plates; the two guide rails being perpendicular to each other; a plurality of bearing slides being equidistantly and slidably arranged on the inner side of the guide rails; the bearing slides being rotatably connected to the screening shaft; and an oil inlet cylinder being fixedly connected to the inner side of the bearing slides; the oil inlet cylinder being rotatably connected to the screening shaft.
[0009] For example, in a high-efficiency grading machine for a buckwheat production line provided in at least one embodiment of the present invention, a hydraulic cylinder is fixedly installed at both ends of the two guide rails, the output end of the hydraulic cylinder extends into the inner side of the guide rail and is fixedly installed with a bearing slide near the hydraulic cylinder, and a telescopic frame is installed at the bottom of the plurality of bearing slides.
[0010] For example, in at least one embodiment of the present invention, a high-efficiency grading machine for a buckwheat production line is provided, which further includes: the oil inlet cylinders are symmetrically arranged at both ends of the screening shaft, and multiple sets of oil inlet interfaces are fixedly installed at equal intervals on both oil inlet cylinders, and each set of oil inlet interfaces is arranged in a circumferential array; multiple annular grooves are equidistantly opened between the oil inlet cylinders and the screening shaft; multiple pairs of oil inlet channels are symmetrically opened on the inner side of the screening shaft; multiple sets of connecting ports are opened on the outer side of the screening shaft, and the number of connecting ports in each set is multiple; the oil inlet channels are connected to the top cylinder through the connecting ports.
[0011] For example, in a high-efficiency grading machine for a buckwheat production line provided in at least one embodiment of the present invention, hydraulic oil is drawn from each set of oil inlets through an annular groove and then through the corresponding oil inlet channel to control the sliding head to extend out of the top cylinder.
[0012] For example, in at least one embodiment of the present invention, a high-efficiency grading machine for a buckwheat production line is provided, which further includes: a large grading plate, a medium grading plate and a small grading plate are fixedly connected to the inner side of the grading bin, the medium grading plate is disposed between the large grading plate and the small grading plate, the large grading plate is disposed on top of the medium grading plate, and the ash hopper is disposed at the bottom of the small grading plate.
[0013] For example, in at least one embodiment of the present invention, a high-efficiency grading machine for a buckwheat production line is provided, which further includes: the transfer assembly includes a transfer hopper fixedly connected to the inner side of the transfer chamber, a chute plate fixedly connected to the inner side of the transfer chamber, the chute plate and the transfer hopper being interconnected, a large dividing plate being disposed at the bottom of the transfer hopper, a large feeding roller and a feeding shaft being rotatably connected between the transfer hopper and the transfer chamber, a small feeding roller being fixedly connected to the outer side of the feeding shaft, a feeding sprocket being fixedly connected to one end of the feeding shaft and the large feeding roller extending to the outer side of the transfer chamber, a feeding chain being sleeved between the two feeding sprockets, and a feeding motor being fixedly installed on the outer side of the transfer chamber, the output end of the feeding motor being drively connected to the large feeding roller.
[0014] For example, in at least one embodiment of the present invention, a high-efficiency grading machine for a buckwheat production line is provided, which further includes: symmetrically provided material pushing grooves on the transfer hopper and the transfer bin; a drive rod slidably provided on the inner side of the material pushing groove; an arc-shaped push plate slidably provided on the inner side of the transfer hopper; the drive rod and the arc-shaped push plate are fixedly connected; a connecting rod is rotatably connected to the end of the drive rod that extends to the outside of the transfer bin and is away from the feeding motor; a crank is rotatably connected to the connecting rod; and the crank is fixedly connected to the feeding roller.
[0015] The beneficial effects of this invention are as follows: 1. In this invention, by adjusting the independently adjustable sieve shaft spacing and the length of the sliding top head extending from the top cylinder, the rotation direction and phase difference of the sieve shaft can be used to precisely control the flexible filter cloth to form a variety of dynamic sieve surface shapes, thereby efficiently separating large impurities such as straw with different contents and properties.
[0016] 2. In this invention, through the coordinated operation of multi-stage vibrating screening and transfer components, the entire process of buckwheat grading, from impurity removal to particle size classification, is automated and continuous, significantly improving the adaptability and overall efficiency of the grading process. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of the present invention and these drawings without any creative effort.
[0017] Figure 1 This is a top view schematic diagram of the overall structure of a high-efficiency grading machine for a buckwheat production line proposed in this invention; Figure 2 This is a schematic diagram of the overall bottom view structure in this invention; Figure 3 This is a schematic diagram of the internal structure of the impurity removal bin, grading bin, transfer bin, and ash hopper in this invention. Figure 4 This is a schematic diagram of the structure of the impurity removal bin, transfer bin, and grading bin in this invention; Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point A in the middle; Figure 6 This is a schematic diagram of the structure of the adjusting screening component in this invention; Figure 7 for Figure 6 Enlarged schematic diagram of the structure at point B; Figure 8 for Figure 6 Enlarged schematic diagram of the structure at point C; Figure 9 This is a top view of the adjustable screening component and flexible filter cloth in this invention; Figure 10 This is a bottom view of the adjustable screening component in this invention; Figure 11 This is a schematic diagram of the first internal structure of the screening shaft in this invention; Figure 12 for Figure 11 Enlarged schematic diagram of the structure at point D; Figure 13 for Figure 11 Enlarged schematic diagram of the structure at point E in the middle; Figure 14 This is a schematic diagram of the second internal structure of the screening shaft in this invention; Figure 15 for Figure 14 Enlarged schematic diagram of the structure at point F.
[0018] In the diagram: 1. Impurity removal bin; 2. Splash guard; 3. Transfer bin; 4. Grading bin; 5. Spring support; 6. Ash hopper; 7. Vibrating motor; 10. Slag discharge plate; 100. Feed plate; 11. Flexible filter cloth; 12. Hydraulic cylinder; 13. Guide rail; 14. Limiting chute; 15. Limiting slide; 16. Drive motor; 17. Bearing slide; 18. Oil inlet cylinder; 19. Screening shaft; 110. Top cylinder; 111. Sliding top head; 112. Telescopic frame; 103. Support Plate; 180, Oil inlet interface; 190, Annular groove; 191, Oil inlet channel; 192, Connection port; 30, Transfer hopper; 31, Feeding chain; 32, Feeding sprocket; 33, Feeding shaft; 34, Pushing chute; 35, Arc-shaped push plate; 36, Large feeding roller; 37, Small feeding roller; 38, Drive rod; 39, Connecting rod; 310, Crank; 311, Sluice plate; 312, Feeding motor; 40, Middle dividing plate; 41, Small dividing plate; 42, Large dividing plate. Detailed Implementation The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it.
[0019] To keep the drawings concise, each drawing only schematically shows the parts relevant to the invention; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0020] In this document, 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 fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0022] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 limitations on the present invention.
[0023] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0024] Example 1 like Figures 1-15 As shown, the present invention proposes a high-efficiency grading machine for a buckwheat production line, which includes a cleaning chamber 1 and a flexible filter cloth 11 installed inside the cleaning chamber 1. The adjusting screening component is located inside the impurity removal chamber 1 and is used to adjust the shape of the flexible filter cloth 11. It includes symmetrically arranged guide rails 13, and multiple independently rotating screening shafts 19 are equidistantly arranged on the two guide rails 13. The distance between the multiple screening shafts 19 is equidistantly adjusted. Each of the multiple screening shafts 19 is equipped with a set of top cylinders 110. Each set of top cylinders 110 consists of multiple sets of top cylinders 110 arranged equidistantly. A sliding top head 111 is slidably arranged inside the top cylinder 110. The length of the sliding top head 111 extending out of the top cylinder 110 can be independently adjusted to change the tilt angle of the flexible filter cloth 11 in multiple directions and the peak amplitude along the length of the guide rail 13. The spacing between multiple sets of sliding heads 111 can be adjusted at equal intervals to change the wave crest period of the flexible filter cloth 11 along the length direction of the guide rail 13. The multiple sets of sliding heads 111 can simultaneously approach one side of the inner wall of the impurity removal chamber 1. The spacing between the multiple sets of sliding heads 111 and the extension length of a single sliding head 111 can be adjusted to adapt to different shapes of the flexible filter cloth 11. A transfer bin 3 is fixedly installed at the bottom of the waste bin 1; The transfer assembly is located inside the transfer chamber 3 and is used to transfer the sieved buckwheat for subsequent grading.
[0025] Before processing, buckwheat needs to be pre-treated. The collected buckwheat raw materials contain some straw, and the straw content varies. Therefore, by setting up an adjustable screening component, the flexible filter cloth 11 is adjusted in various states according to the straw density to achieve efficient screening. After screening, the buckwheat enters the grading chamber 4 through the transfer chamber 3 for grading. Finally, the small particle impurities enter the ash hopper 6.
[0026] Example 2 like Figures 1-3 As shown, based on Embodiment 1, in this embodiment, a slag discharge plate 10 is fixedly connected to one end of the impurity removal bin 1, a splash guard 2 is fixedly connected to the top of the impurity removal bin 1, a grading bin 4 is fixedly installed at the bottom of the transfer bin 3, a spring bracket 5 and an ash hopper 6 are fixedly installed at the bottom of the grading bin 4, and multiple vibration motors 7 are installed on the spring bracket 5. Furthermore, during operation, the vibration motor 7 is started as the power source for screening and grading. One end of the impurity removal bin 1 is fixedly connected to the feed plate 100, which is the feed inlet. The buckwheat raw material enters the impurity removal bin 1 from here, and is filtered by the flexible filter cloth 11. Large particles of impurities such as slag, stones, and straw are discharged on the slag discharge plate 10. The buckwheat after screening falls onto the chute plate 311, and enters the transfer hopper 30 after vibration. After the action of the transfer component, it enters the grading bin 4 for grading.
[0027] Example 3 like Figures 6-15 As shown, based on the above embodiments, in this embodiment, the adjusting screening component further includes a limiting slide groove 14 opened on the side of the impurity removal bin 1. Multiple limiting slide seats 15 are equidistantly slidably arranged on the inner side of the limiting slide groove 14. A drive motor 16 is fixedly installed on the inner side of the limiting slide seat 15. The output end of the drive motor 16 is fixedly installed with the screening shaft 19.
[0028] Furthermore, the drive motor 16 is controlled by a PLC, which can control synchronous rotation or individual rotation. Since the spacing between the screening shafts 19 in this design can be adjusted, the limit slide 15 is limited to slide in the limit slide 14, and the drive motor 16 is installed inside the limit slide 15, thereby satisfying the driving conditions.
[0029] The bottom of the impurity removal bin 1 is symmetrically and fixedly connected with support plates 103. The transfer bin 3 is fixedly installed at the bottom of the two support plates 103. The two support plates 103 are symmetrically and fixedly installed with guide rails 13. The two guide rails 13 are perpendicular to the support plates 103. Multiple bearing slides 17 are equidistantly and slidably arranged on the inner side of the guide rails 13. The bearing slides 17 are rotatably connected to the screening shaft 19. The inner side of the bearing slides 17 is fixedly connected with an oil inlet cylinder 18. The oil inlet cylinder 18 is rotatably connected to the screening shaft 19.
[0030] Hydraulic cylinders 12 are fixedly installed at both ends of the two guide rails 13. The output end of the hydraulic cylinder 12 extends into the inside of the guide rail 13 and is fixedly installed with a bearing slide 17 near the hydraulic cylinder 12. A telescopic frame 112 is installed at the bottom of multiple bearing slides 17.
[0031] The oil inlet cylinders 18 are symmetrically arranged at both ends of the screening shaft 19. Multiple sets of oil inlet ports 180 are fixedly installed at equal intervals on both oil inlet cylinders 18, and each set of oil inlet ports 180 is arranged in a circumferential array. Multiple annular grooves 190 are equally spaced between the oil inlet cylinders 18 and the screening shaft 19. Multiple pairs of oil inlet channels 191 are symmetrically opened on the inner side of the screening shaft 19, and multiple sets of connecting ports 192 are opened on the outer side of the screening shaft 19. Each set of connecting ports 192 has multiple ports. The oil inlet channels 191 are connected to the top cylinder 110 through the connecting ports 192.
[0032] Hydraulic oil enters from each set of oil inlet ports 180, passes through annular grooves 190, and then through corresponding oil inlet channels 191, controlling the sliding head 111 to extend out of the top cylinder 110.
[0033] Furthermore, firstly, each screening shaft 19 is equipped with a set of top cylinders 110, and each set of top cylinders 110 consists of multiple symmetrically arranged cylinders. A sliding top head 111 is slidably arranged inside the top cylinder 110. Since both ends of the screening shaft 19 are equipped with oil inlet cylinders 18, the oil inlet cylinder 18 at one end is used to control the extension and retraction of multiple sliding top heads 111 on the same side, and the oil inlet cylinder 18 on the other side is used to control the extension of multiple sliding top heads 111 on that side. Furthermore, for example, the oil inlet cylinder 18 is equipped with four sets of oil inlet ports 180. The number of oil inlet ports 180 in each set is four and can be arbitrarily set, and they are distributed at equal 90-degree angles. If there are N sets of oil inlet ports 180 on the oil inlet cylinder 18, then one screening shaft 19 is equipped with 2N sliding top heads 111. The screening shaft 19 has N pairs of oil inlet channels 191 inside. Viewed from one side of the screening shaft 19, the oil inlet channels 191 correspond one-to-one with the top cylinders 110 and are interconnected. The oil inlet cylinder 18 and the screening shaft 19 are equidistantly spaced. There are N annular grooves 190, each annular groove 190 having a phase difference of (360 / N)°. Hydraulic oil is connected to the annular grooves 190 through the oil inlet port 180, then flows through the oil inlet channel 191, and finally enters the top cylinder 110 through the corresponding connection port 192, ultimately lifting the sliding top head 111. The flexible filter cloth 11 is made of a smooth and flexible material, so the point where the sliding top head 111 lifts the flexible filter cloth 11 is a wave crest. By adjusting the height of the sliding top head 111, the higher the wave crest, the more violently the buckwheat moves on the flexible filter cloth 11. Furthermore, in order to adjust the spacing between each wave crest and improve the movement path of the buckwheat, it is necessary to adjust the spacing between two adjacent sliding heads 111 on an adjacent screening shaft 19. This is achieved by driving the hydraulic cylinders 12 symmetrically arranged on both sides, controlling the extension and retraction of the hydraulic cylinders 12, and then cooperating with the telescopic frame 112 to act on each bearing slide 17, thereby achieving the spacing between two adjacent bearing slides 17, so that each screening shaft 19 is evenly distributed on the bottom of the flexible filter cloth 11. Furthermore, by keeping the two hydraulic cylinders 12 on one side stationary and driving the two hydraulic cylinders 12 on the other side to extend and retract synchronously, the function of adjusting the equidistant spacing of multiple bearing slides 17 can also be achieved. By synchronously moving the bearing slides 17 at both ends of the screening shaft 19, the spacing between adjacent sliding heads 111 can be adjusted. Under this adjustment, the screening shaft 19 will be concentrated on one side of the bottom of the flexible filter cloth 11. Furthermore, in the prior art, the spring support 5 of this design is set on a fixed inclined support. In order to further adjust the inclination angle of the flexible filter cloth 11, the length of the extended sliding head 111 in each set of top cylinders 110 is set such that the difference between the extended lengths of any two adjacent sliding heads 111 on the same screening shaft 19 is equal. This difference is denoted as A, and the distance between two adjacent sliding heads 111 on the same screening shaft 19 is denoted as B. Then the approximate inclination angle is arctanA / B.
[0034] Furthermore, in summary, assuming the screening shaft 19 is arranged horizontally, then multiple screening shafts 19 are arranged vertically. The first state of the flexible filter cloth 11: if the lengths of the multiple sliding heads 111 extending out of the top cylinder 110 decrease from more to less, and when reaching the middle screening shaft 19, the lengths of the extended portion increase from less to more, the flexible filter cloth 11, viewed horizontally, presents an overall arc shape. By controlling the lengths of the sliding heads 111 extending out of the top cylinder 110, the degree of curvature can be changed. This is suitable for situations where the content of impurities such as straw in buckwheat is relatively low. During the screening process, multiple drive motors 16 are divided into two groups, with the two groups rotating in opposite directions and both turning towards the connection between the flexible filter cloth 11 and the impurity removal chamber 1. The drive motors 16 are started to rotate and drive the screening shaft 19 to rotate. The rotation of each screening shaft 19 is controlled to have a phase difference, which synchronously drives the sliding top 111 to move in a circular motion, periodically lifting the flexible filter cloth 11 and moving the buckwheat on the flexible filter cloth 11 towards its edge in a wave-like manner. The buckwheat is lifted up and then moved to the bottom of the arc-shaped sliding top 111 under the action of gravity for screening. The buckwheat falls onto the chute plate 311, while straw-like impurities continue to remain on the flexible filter cloth 11 after passing through the slag discharge plate 10 and are discharged through the slag discharge plate 10.
[0035] Furthermore, in the second state of the flexible filter cloth 11: if the screening shaft 19 is clustered on one side of the bottom of the flexible filter cloth 11, the contact area between the flexible filter cloth 11 and the sliding top 111 will be wavy, and the non-contact area will be arc-shaped due to gravity. If the amount of buckwheat added at one time is small, in this way, the motor used to drive the buckwheat will rotate towards the arc of the flexible filter cloth 11 during screening, and the buckwheat will fall onto the chute plate 311. Straw impurities will remain on the arc of the flexible filter cloth 11 and be discharged through the slag discharge plate 10.
[0036] Furthermore, in the third state of the flexible filter cloth 11: all screening shafts 19 are evenly distributed at the bottom of the flexible filter cloth 11, and all sliding top heads 111 extend out of the top cylinder 110 by the same length. All drive motors 16 rotate at the same speed, and there is a phase difference between adjacent screening shafts 19 during the rotation of the drive screening shafts 19. At this time, the movement of the flexible filter cloth 11 is wave-like. After screening for a period of time, all drive motors 16 reverse and rotate at the same speed. In this way, the buckwheat will continuously roll back and forth on the flexible filter cloth 11. This method is suitable for situations where there is a large quantity of buckwheat and a lot of impurities. Furthermore, in addition to the three states mentioned above, by adjusting the length of the sliding head 111 extending out of the top cylinder 110, the distance between the longitudinal sliding heads 111, the phase difference between two adjacent screening shafts 19, the rotation direction of the screening shafts 19, and the overall position of the multiple screening shafts 19, different motion states of the flexible filter cloth 11 can be set, making it highly adaptable.
[0037] Example 4 like Figures 4-7 As shown, based on the above embodiments, in this embodiment, the transfer assembly includes a transfer hopper 30 fixedly connected to the inner side of the transfer chamber 3, a chute plate 311 fixedly connected to the inner side of the transfer chamber 3, the chute plate 311 and the transfer hopper 30 being interconnected, a large dividing plate 42 being disposed at the bottom of the transfer hopper 30, a large feeding roller 36 and a feeding shaft 33 being rotatably connected between the transfer hopper 30 and the transfer chamber 3, a small feeding roller 37 being fixedly connected to the outer side of the feeding shaft 33, and a feeding sprocket 32 being fixedly connected to one end of the feeding shaft 33 and the large feeding roller 36 extending to the outer side of the transfer chamber 3, a feeding chain 31 being sleeved between the two feeding sprockets 32, and a feeding motor 312 being fixedly installed on the outer side of the transfer chamber 3, the output end of the feeding motor 312 being drively connected to the large feeding roller 36.
[0038] The transfer hopper 30 and the transfer chamber 3 are symmetrically provided with pusher grooves 34. A drive rod 38 is slidably provided on the inner side of the pusher grooves 34. An arc-shaped push plate 35 is slidably provided on the inner side of the transfer hopper 30. The drive rod 38 is fixedly connected to the arc-shaped push plate 35. The end of the drive rod 38 that extends to the outside of the transfer chamber 3 and is away from the feeding motor 312 is rotatably connected to a connecting rod 39. A crank 310 is rotatably connected to the connecting rod 39. The crank 310 is fixedly connected to the feeding roller 36.
[0039] Furthermore, under the action of the vibrating motor 7, the sieved buckwheat falls onto the chute plate 311 and enters the transfer hopper 30. The top of the arc-shaped push plate 35 in the transfer hopper 30 is high enough. After the buckwheat enters the transfer hopper 30, the feeding motor 312 drives the large push roller 36 and the small push roller 37 to rotate synchronously through the feeding sprocket 32. At the same time, when the large push roller 36 rotates, it drives the drive rod 38 to move relative to the push chute 34 through the action of the connecting rod 39 and the crank 310, and synchronously drives the arc-shaped push plate 35 to move to push the material. At the same time, when the arc-shaped push plate 35 approaches the large push roller 36, the large push roller 36 pushes the buckwheat toward the small push roller 37, and the small push roller 37 pushes the buckwheat toward the large separating plate 42.
[0040] Example 5 like Figures 3-4 As shown, based on the above embodiments, in this embodiment, the inner side of the grading bin 4 is fixedly connected with a large dividing plate 42, a medium dividing plate 40 and a small dividing plate 41 respectively. The medium dividing plate 40 is disposed between the large dividing plate 42 and the small dividing plate 41. The large dividing plate 42 is disposed on top of the medium dividing plate 40 and the ash hopper 6 is disposed at the bottom of the small dividing plate 41. Furthermore, the large dividing plate 42, the medium dividing plate 40, and the small dividing plate 41 are all provided with leakage holes, and the size of the leakage holes is different. The leakage holes on the large dividing plate 42 are the largest, and the leakage holes on the small dividing plate 41 are the smallest. The hole diameter of the small dividing plate 41 is 1.5mm, the hole diameter of the medium dividing plate 40 is set at 3mm, and the hole diameter of the large dividing plate 42 is 4.5mm. After being classified by the large dividing plate 42, the medium dividing plate 40, and the small dividing plate 41, the samples are collected at their respective outlets.
[0041] It should be noted that the above 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 with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.
Claims
1. A high-efficiency grading machine for a tartary buckwheat production line, comprising a impurity removal bin (1), characterized in that, The impurity removal bin (1) is internally provided with a flexible filter cloth (11); The adjusting and screening assembly is arranged on the inner side of the impurity removal bin (1) and is used for adjusting the shape of the flexible filter cloth (11), and comprises symmetrically arranged guide rails (13), a plurality of independently self-rotating screening shafts (19) are equidistantly and slidably arranged on the two guide rails (13), the spacing between the plurality of screening shafts (19) is equidistantly adjusted, a group of top cylinders (110) are arranged on the plurality of screening shafts (19), each group of top cylinders (110) comprises a plurality of top cylinders (110) arranged at equal intervals, a sliding top head (111) is sealingly and slidably arranged on the inner side of each top cylinder (110), the length of the sliding top head (111) extending out of the top cylinder (110) is independently adjusted to change the inclination angle of the flexible filter cloth (11) in a plurality of directions and the wave crest amplitude in the length direction of the guide rail (13); The spacing between a plurality of groups of the sliding top heads (111) is equidistantly adjusted to change the wave crest period of the flexible filter cloth (11) in the length direction of the guide rail (13), and the plurality of groups of the sliding top heads (111) can be simultaneously close to one side of the inner wall of the impurity removal bin (1), and the spacing between the plurality of groups of the sliding top heads (111) and the length of the single sliding top head (111) extending out are adjusted to adapt to different shapes of the flexible filter cloth (11); The bottom of the impurity removal bin (1) is fixedly provided with a transfer bin (3); The transfer assembly is arranged on the inner side of the transfer bin (3) and is used for transferring the screened tartary buckwheat for subsequent classification.
2. The high-efficiency grading machine for a tartary buckwheat production line according to claim 1, characterized in that, The top of the impurity removal bin (1) is fixedly connected with a splash plate (2), the bottom of the transfer bin (3) is fixedly provided with a classification bin (4), the bottom of the classification bin (4) is fixedly provided with a spring support (5) and a dust hopper (6), and a plurality of vibration motors (7) are arranged on the spring support (5).
3. The high-efficiency classifier for a tartary buckwheat production line according to claim 1, characterized in that, The adjusting and screening assembly further comprises a limiting sliding groove (14) formed in the side of the impurity removal bin (1), a plurality of limiting sliding seats (15) are equidistantly and limitingly arranged on the inner side of the limiting sliding groove (14), a drive motor (16) is fixedly arranged on the inner side of the limiting sliding seat (15), and the output end of the drive motor (16) is fixedly connected with the screening shaft (19).
4. The high-efficiency classer for a tartary buckwheat production line according to claim 1, characterized in that, The bottom of the impurity removal bin (1) is symmetrically fixedly connected with a support plate (103), the two support plates (103) are symmetrically fixedly provided with guide rails (13), the two guide rails (13) are perpendicular to the support plate (103), a plurality of bearing sliding seats (17) are equidistantly and limitingly arranged on the inner side of the guide rail (13), the bearing sliding seat (17) is rotatably connected with the screening shaft (19), the inner side of the bearing sliding seat (17) is fixedly connected with an oil inlet cylinder (18), and the oil inlet cylinder (18) is rotatably connected with the screening shaft (19).
5. The high-efficiency classer for a tartary buckwheat production line according to claim 4, characterized in that, The two ends of the two guide rails (13) are fixedly provided with hydraulic cylinders (12), the output end of the hydraulic cylinder (12) extends into the inner side of the guide rail (13) and is fixedly connected with one bearing sliding seat (17) close to the hydraulic cylinder (12), and the bottoms of the plurality of bearing sliding seats (17) are commonly provided with a telescopic frame (112).
6. The high-efficiency classer for a tartary buckwheat production line according to claim 5, characterized in that, The oil inlet cylinder (18) is symmetrically arranged at both ends of the screening shaft (19), a plurality of groups of oil inlet interfaces (180) are fixedly arranged on the two oil inlet cylinders (18) at equal intervals, each group of oil inlet interfaces (180) is arranged in a circumferential array, a plurality of annular grooves (190) are arranged at equal intervals between the oil inlet cylinder (18) and the screening shaft (19), a plurality of pairs of oil inlet channels (191) are symmetrically arranged on the inner side of the screening shaft (19), a plurality of groups of through openings (192) are arranged on the outer side of the screening shaft (19), the number of through openings (192) in each group is a plurality, and the oil inlet channels (191) are connected with the top cylinder (110) through the through openings (192).
7. The high-efficiency classifier for a tartary buckwheat production line according to claim 6, characterized in that, The hydraulic oil passes through the annular grooves (190) from each group of oil inlet interfaces (180), and then passes through the corresponding oil inlet channels (191) to control the sliding top head (111) to extend out of the top cylinder (110).
8. The high-efficiency classer for a tartary buckwheat production line according to claim 2, characterized in that, The inner side of the grading bin (4) is fixedly connected with a large partition plate (42), a middle partition plate (40) and a small partition plate (41), respectively, the middle partition plate (40) is arranged between the large partition plate (42) and the small partition plate (41), the large partition plate (42) is arranged at the top of the middle partition plate (40), and the hopper (6) is arranged at the bottom of the small partition plate (41).
9. The high-efficiency classer for a tartary buckwheat production line according to claim 8, characterized in that, The transport assembly comprises a transport hopper (30) fixedly connected to the inner side of a transport bin (3), a chute plate (311) is fixedly connected to the inner side of the transport bin (3), the chute plate (311) and the transport hopper (30) are connected to each other, the large partition plate (42) is arranged at the bottom of the transport hopper (30), the transport hopper (30) and the transport bin (3) are rotatably connected with a material stirring large roller (36) and a material stirring shaft (33), the outer side of the material stirring shaft (33) is fixedly connected with a material stirring small roller (37), the material stirring shaft (33) and the material stirring large roller (36) are both fixedly connected with a feeding sprocket (32) at one end extending to the outer side of the transport bin (3), a feeding chain (31) is sleeved and connected between the two feeding sprockets (32), and a feeding motor (312) is fixedly arranged on the outer side of the transport bin (3). The output end of the feeding motor (312) is in transmission connection with the material stirring large roller (36).
10. The high-efficiency classer for a tartary buckwheat production line according to claim 9, characterized in that, A material pushing chute (34) is symmetrically arranged on the transport hopper (30) and the transport bin (3), a driving rod (38) is slidably arranged on the inner side of the material pushing chute (34), an arc-shaped pushing plate (35) is slidably arranged on the inner side of the transport hopper (30), the driving rod (38) and the arc-shaped pushing plate (35) are fixedly connected, a connecting rod (39) is rotatably connected to one end of the driving rod (38) extending to the outer side of the transport bin (3) and away from the feeding motor (312), a crank (310) is rotatably connected to the connecting rod (39), and the crank (310) is fixedly connected with the material stirring large roller (36).