Small tartary buckwheat hulling and grinding machine
The small buckwheat dehulling and grinding machine, which integrates dehulling, grinding and blowing components, solves the problem of the single function of existing buckwheat grinding devices, realizes fast and convenient dehulling and grinding of buckwheat, and improves the convenience of selenium measurement.
Patent Information
- Application Number
- CN202423207157.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing buckwheat grinding devices have limited functionality, cannot complete dehulling and grinding in one go, involve cumbersome steps, and are not suitable for selenium testing of small quantities of experimental buckwheat.
A small buckwheat dehulling and grinding machine was designed, integrating a dehulling component, a grinding component, and a blowing component. The machine achieves automated dehulling, grinding, and impurity separation of buckwheat through dehulling blades, grinding blades, and blowing fans.
It enables rapid and convenient dehulling and grinding of buckwheat, reduces operational steps, and improves ease of use and accuracy of selenium measurement.
Smart Images

Figure CN223697843U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of buckwheat selenium measurement technology, specifically relating to a small buckwheat dehulling and grinding machine. Background Technology
[0002] Selenium is an essential trace element for the human body. In the human body, it participates extensively in cellular physiological processes in the form of selenoproteins and is closely related to functions such as anti-oxidation, hormone regulation, and mineral element metabolism. As a selenium-rich crop, buckwheat is rich in nutrients and has good health benefits. Selenium testing of buckwheat can determine its nutritional value as a food and accurately provide consumers with nutritional labeling information for buckwheat products.
[0003] Currently, the general method for measuring selenium in buckwheat is to grind the buckwheat into powder, and then the testers measure the selenium content in the buckwheat through a testing agency. However, the existing devices for grinding buckwheat are relatively simple in function and cannot complete the dehulling and grinding of buckwheat in one go. A special dehulling machine is required to remove the husks before the buckwheat is put into the grinding mill for grinding. The process is cumbersome and troublesome. Moreover, the machines are generally large, which is inconvenient when grinding a small amount of buckwheat for selenium measurement. Therefore, in order to address the above problems, we propose a small buckwheat dehulling and grinding machine. Utility Model Content
[0004] To address the above problems, the purpose of this utility model is to provide a small buckwheat dehulling and grinding machine that integrates buckwheat dehulling and grinding, reducing operation steps and increasing ease of use.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a small buckwheat dehulling and grinding machine, comprising a processing box, a dehulling component, a grinding component, and a blowing component. The processing box includes a box body with openings at both ends, a cover detachably connected to the upper and lower ends of the box body, and a collection box. A filter screen is detachably connected to the upper part of the box body. The dehulling component includes an outer rod on the cover and multiple dehulling blades equidistantly arranged on the outer circumference of the outer rod. A cavity is formed in the cover, and a device for driving the outer rod to rotate is provided in the cavity. The first driving component is a grinding component located below the dehulling component and used to grind the dehulled buckwheat particles. The grinding component includes a second filter screen slidably installed inside the housing, a rotating rod rotatably connected to the second filter screen, and a plurality of grinding blades equidistantly arranged on the outer circumference of the rotating rod. The mesh size of the second filter screen is smaller than that of the first filter screen. The collection box is provided with the second driving component for driving the rotating rod to rotate. The separation component is located on the housing and between the dehulling component and the grinding component. The separation component is used to separate the buckwheat hulls from the buckwheat particles.
[0006] The beneficial effects of this utility model are as follows: by setting a dehulling component, a blowing component, and a grinding component in the upper, middle, and lower parts of the processing box respectively, the buckwheat can be dehulled first by the dehulling knife, and the buckwheat grains and some buckwheat husks fall off through the filter screen. Then the blowing component separates the buckwheat husks from the buckwheat grains, and the buckwheat grains are directly ground by the grinding component, which increases the functionality and convenience of use.
[0007] In order to drive the unpacking component to unpack;
[0008] As a further improvement to the above technical solution: the drive assembly includes a driving bevel gear and a driven bevel gear meshing with the driving bevel gear. One end of the outer rod extends into the interior of the cavity and is rotatably connected to the cover. The outer rod is connected to the driven bevel gear. A motor is provided inside the cavity. The output end of the motor is connected to the driving bevel gear through a rotating shaft.
[0009] The beneficial effects of this improvement are as follows: the motor drives the active bevel gear to rotate, which in turn drives the driven bevel gear to rotate, and then the outer rod drives the dehulling knife to dehull the buckwheat.
[0010] To improve the efficiency of buckwheat grain filtration;
[0011] As a further improvement to the above technical solution: the drive assembly one also includes a driven bevel gear two that meshes with the driving bevel gear, an inner rod is rotatably connected to the cover, and the inner rod is coaxially rotatably connected to the inside of the outer rod, the driven bevel gear two is connected to one end of the inner rod, and a square groove one is opened at the other end of the inner rod, and a square block one that matches the square groove one is provided at the bottom of the filter screen one.
[0012] The beneficial effects of this improvement are as follows: the active bevel gear drives the two driven bevel gears to rotate, and the two driven bevel gears drive the inner rod and the outer rod to rotate in opposite directions, which accelerates the efficiency of buckwheat hulling and makes it easier for the hulled buckwheat to fall off quickly.
[0013] To drive the grinding assembly to grind powder;
[0014] As a further improvement to the above technical solution: the second drive assembly includes a second motor and a drive rod connected to the output end of the second motor. The collection box has a second cavity. The second motor is located inside the second cavity. One end of the drive rod extends into the inside of the box and is rotatably connected to the collection box. A second square block is connected to the drive rod. The bottom of the rotating rod has a second square groove that matches the second square block.
[0015] The beneficial effects of this improvement are as follows: by matching the square block with the square slot, the drive rod and the rotating rod are connected together. When the second motor drives the drive rod to rotate, it also drives the rotating rod and the grinding blade to rotate, thereby grinding the buckwheat grains.
[0016] For ease of use of filter one;
[0017] As a further improvement to the above technical solution: an annular groove adapted to the outer edge of the filter screen is provided on the inner wall of the box, and a plurality of balls are provided at the bottom of the annular groove.
[0018] The beneficial effects of this improvement are as follows: by inserting the outer edge of filter screen one into the annular groove, the stability of filter screen one can be increased when filter screen one and the shelling knife rotate coaxially in opposite directions. At the same time, the ball bearings can reduce the friction between filter screen one and the inner wall of the box, making it easier for filter screen one to rotate.
[0019] To allow the buckwheat flour to fall into the collection box;
[0020] As a further improvement to the above technical solution: the bottom of the filter screen two is provided with a wedge-shaped ring one, and the rotating rod is provided with a wedge-shaped ring two. When the lowest point of the wedge-shaped ring one touches the highest point of the wedge-shaped ring two, the filter screen two rises.
[0021] The beneficial effect of this improvement is that when the rotating rod drives the second wedge ring to rotate, the second wedge ring will abut against the first wedge ring, causing the second filter screen to move up and down, thereby evenly shaking the buckwheat powder on the second filter screen into the collection box.
[0022] In order to separate the buckwheat husks that fall with the buckwheat grains;
[0023] As a further improvement to the above technical solution: the blowing assembly includes a blowing fan disposed on the housing and an opening disposed on the housing, wherein the blowing fan and the opening are arranged opposite to each other.
[0024] The beneficial effects of this improvement are as follows: after the buckwheat is hulled, some buckwheat hulls will fall off the first filter screen along with the buckwheat grains. Then, the blower will blow the buckwheat hulls out of the opening, making the buckwheat grains that fall onto the second filter screen cleaner and free of impurities.
[0025] To increase the efficiency of shelling;
[0026] As a further improvement to the above technical solution: multiple friction strips are provided on the inner wall of the filter screen.
[0027] The beneficial effects of this improvement are: the setting of multiple friction strips can increase the friction on the buckwheat grains when the hulling knife rotates, making it easier to peel off the buckwheat husks from the buckwheat grains. Attached Figure Description
[0028] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0029] Figure 2 This is a front view structural diagram of the present invention;
[0030] Figure 3 This is a cross-sectional structural diagram of the present invention;
[0031] Figure 4 This utility model Figure 3 A magnified structural diagram of A in the middle;
[0032] Figure 5 This utility model Figure 3 A magnified structural diagram of B in the diagram;
[0033] Figure 6 This utility model Figure 3 A magnified structural diagram of C.
[0034] In the diagram: 101, Box body; 102, Shell cover; 103, Collection box; 201, Outer rod; 202, Shelling knife; 3, Filter screen one; 4, Cavity one; 501, Driving bevel gear; 502, Driven bevel gear one; 503, Driven bevel gear two; 601, Filter screen two; 602, Rotating rod; 603, Grinding knife; 701, Motor two; 702, Drive rod; 801, Blowing fan; 802, Opening; 9, Motor one; 10, Rotating shaft; 11, Inner rod; 12, Square groove one; 13, Square block one; 14, Cavity two; 15, Square block two; 16, Square groove two; 17, Ring groove; 18, Ball bearing; 19, Friction strip; 20, Wedge ring one; 21, Wedge ring two. Detailed Implementation
[0035] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.
[0036] like Figures 1-6As shown, a small buckwheat dehulling and grinding machine includes a processing box, which comprises a box body 101 with openings 802 at both ends, a cover 102 detachably connected to the upper end and the bottom end of the box body 101, and a collection box 103. During use, the cover 102 and the collection box 103 can be detachably connected by fixing devices or snap-fitting, facilitating material feeding and discharging. It also includes a dehulling assembly. A filter screen 3 is detachably connected to the upper part of the box body 101. The dehulling assembly includes an outer rod 201 on the cover 102 and multiple dehulling blades 202 equidistantly arranged on the outer circumference of the outer rod 201. A cavity 4 is formed in the cover 102. The cavity 4 is equipped with a drive assembly 1 for driving the outer rod 201 to rotate. When the buckwheat is put into the box 101, the buckwheat will fall onto the filter screen 3. The mesh of the filter screen 3 is smaller than the size of the buckwheat grains with shells. For example, a 30-mesh screen can be used. Then the drive assembly 1 drives the outer rod 201 and the shelling knife 202 to rotate. The shelling knife 202 is designed with blunt edges and a thickness of two to three millimeters. Then the shelling knife 202 rotates and rubs the buckwheat grains against the filter screen 3, thereby removing the shells from the buckwheat grains. Then the shelled buckwheat grains fall down along the mesh of the filter screen 3, which may contain buckwheat shells.
[0037] It also includes a grinding component and a separating component. The grinding component is located below the dehulling component and is used to grind the dehulled buckwheat particles. The grinding component includes a second filter screen 601 slidably installed inside the housing 101, a rotating rod 602 rotatably connected to the second filter screen 601, and multiple grinding blades 603 equidistantly arranged on the outer circumference of the rotating rod 602. The mesh size of the second filter screen 601 is smaller than that of the first filter screen 3. The collection box 103 is equipped with a second driving component for driving the rotating rod 602 to rotate. The separating component is located on the housing 101 and between the dehulling component and the grinding component. The separating component is used to separate the buckwheat hull from the buckwheat particles after dehulling. The buckwheat grains are separated by the blowing component, separating the buckwheat husks from the grains. The buckwheat grains that fall off are free of impurities and then fall onto filter screen 601. Drive component 2 drives the rotating rod 602 and grinding blade 603 to rotate. The surface of grinding blade 603 can be blade-like with multiple blades, similar to the blades on the blades of a high-speed blender in the prior art. The buckwheat grains are then ground. The finely ground buckwheat powder falls through the mesh of filter screen 601. The mesh of filter screen 601 is small, such as a 100-mesh sieve, which makes the falling buckwheat powder finer, making it easier for subsequent inspection personnel to check and increasing the convenience of use.
[0038] Furthermore, the drive assembly includes a driving bevel gear 501 and a driven bevel gear 502 meshing with the driving bevel gear 501. One end of the outer rod 201 extends into the cavity 4 and is rotatably connected to the cover 102. The outer rod 201 is connected to the driven bevel gear 502. A motor 9 is provided in the cavity 4. The output end of the motor 9 is connected to the driving bevel gear 501 through a rotating shaft 10. In use, the motor drives the driving bevel gear 501 to rotate through the rotating shaft 10. Then, the driving bevel gear 501 drives the driven bevel gear 502 meshing with it to rotate. In turn, the driven bevel gear 502 drives the outer rod 201 and the dehulling knife 202 to rotate, thus dehulling the buckwheat grains. The automated operation is relatively convenient.
[0039] Furthermore, the drive assembly also includes a driven bevel gear 503 that meshes with the driving bevel gear 501. An inner rod 11 is rotatably connected to the cover 102, and the inner rod 11 is coaxially rotatably connected to the inside of the outer rod 201. The driven bevel gear 503 is connected to one end of the inner rod 11, and a square groove 12 is provided at the other end of the inner rod 11. The bottom of the filter screen 3 is provided with a square block 13 that matches the square groove 12. In use, when the cover 102 is placed on the housing 101, the square block 13 is engaged in the square groove 12. Then, the active bevel gear 501 rotates, driving the driven bevel gear 1 502 and the driven bevel gear 2 503 to rotate in opposite directions simultaneously. At the same time, the inner rod 11 and the outer rod 201 respectively drive the filter screen 1 3 and the shelling knife 202 to rotate in opposite directions. This not only increases the shelling efficiency, but also allows the rotating filter screen 1 3 to accelerate the falling of buckwheat grains, reducing the risk of buckwheat grains clogging the filter screen 1 3. Furthermore, after use, the square block 1 13 and the square groove 1 12 can be directly separated, making it convenient to disassemble the filter screen 1 3.
[0040] Furthermore, the second drive assembly includes a second motor 701 and a drive rod 702 connected to the output end of the second motor 701. A cavity 14 is provided inside the collection box 103. The second motor 701 is located inside the cavity 14. One end of the drive rod 702 extends into the interior of the box 101 and is rotatably connected to the collection box 103. A square block 15 is connected to the drive rod 702. A square groove 16 adapted to the square block 15 is provided at the bottom of the rotating rod 602. In use, while installing the collection box 103, the square block 15 is locked in the square groove 16. Then the second motor 701 drives the drive rod 702 to rotate, and the rotating rod 602 drives the grinding blade 603 to rotate, which facilitates the grinding of buckwheat grains. At the same time, after use, the filter screen 601 can be easily disassembled.
[0041] Furthermore, the inner wall of the housing 101 is provided with an annular groove 17 that is adapted to the outer edge of the filter screen 3. The bottom of the annular groove 17 is provided with multiple balls 18. In use, the outer edge of the filter screen 3 is placed in the annular groove 17 to support the upper end of the filter screen 3. Then, when the inner rod 11 drives the filter screen 3 to rotate, the balls 18 can reduce the friction between the filter screen 3 and the housing 101, thereby reducing the wear of the filter screen 3.
[0042] Furthermore, the bottom of filter screen 601 is provided with a wedge-shaped ring 20, and the rotating rod 602 is provided with a wedge-shaped ring 21. When the lowest point of wedge-shaped ring 20 contacts the highest point of wedge-shaped ring 21, filter screen 601 rises. During use, when the rotating rod 602 rotates, it will drive wedge-shaped ring 21 to rotate. When the highest point on wedge-shaped ring 21 contacts the lowest point on wedge-shaped ring 20, it will cause filter screen 601 to move upward. When the highest point on wedge-shaped ring 21 separates from the lowest point on wedge-shaped ring 20, filter screen 601 will descend. During the up-and-down movement of filter screen 601, the buckwheat powder will be evenly sieved into the collection box 103. At this time, the buckwheat powder in the collection box 103 is a relatively fine powder, which is convenient for inspectors to use for selenium measurement.
[0043] Furthermore, the blowing assembly includes a blowing fan 801 disposed on the housing 101 and an opening 802 disposed on the housing 101. The blowing fan 801 and the opening 802 are arranged opposite to each other. When in use, the oppositely arranged blowing fan 801 and opening 802 can facilitate the blowing of buckwheat hulls from the opening 802. At this time, the force blown by the blowing fan 801 can be applied to the buckwheat hulls, reducing impurities in the buckwheat grains and improving the accuracy of subsequent testing for selenium in buckwheat.
[0044] Furthermore, the inner wall of the filter screen 3 is provided with multiple friction strips 19. During use, the friction strips 19 can increase the friction on the buckwheat hulls and make the buckwheat move during the rotation of the filter screen 3, thereby improving the uniformity of buckwheat hulling.
[0045] The working principle and usage process of this utility model are as follows: When using this device, first install all the components. Slide the filter screen 601 to the lower end of the housing 101. At this time, the rotating rod 602 and the grinding blade 603 are installed together with the filter screen 601 inside the housing 101. Then install the collection box 103. At this time, the square block 15 is inserted into the square groove 16. Then place the outer edge of the filter screen 3 into the annular groove 17 and put buckwheat grains on the filter screen 3. Then cover the housing 101 with the shell cover 102. At this time, the square block 13 is inserted into the square groove 12. After the connection is completed, start the motor 9 and the motor 701. The motor 9 drives the active bevel gear 501 to rotate through the rotating shaft 10. The driven bevel gear 1 502 and driven bevel gear 2 503 are driven to rotate. At this time, the inner rod 11 and the outer rod 201 drive the hulling knife 202 and the filter screen 3 to rotate in opposite directions respectively. The hulled buckwheat grains fall off, and the blower 801 blows the buckwheat hulls out of the opening 802. The buckwheat grains fall onto the filter screen 2 601. Then, the motor 2 701 drives the drive rod 702 to rotate. The drive rod 702 drives the rotating rod 602 and the grinding knife 603 to rotate, grinding the buckwheat grains on the filter screen 2 601. At the same time, the rotating rod 602 drives the wedge ring 2 21 to collide with the wedge ring 20, causing the filter screen 2 601 to move up and down, sifting the ground buckwheat flour into the collection box 103. Then, the buckwheat flour can be taken out from the collection box 103.
[0046] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0047] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the protection scope of this utility model.
Claims
1. A small buckwheat dehulling and grinding machine, characterized in that, include; The processing box includes a box body (101) with openings (802) at both ends, a cover (102) detachably connected to the bottom of the box body (101), and a collection box (103). The shelling assembly has a filter screen (3) detachably connected to the upper part of the inner side of the housing (101). The shelling assembly includes an outer rod (201) on the shell cover (102) and a plurality of shelling knives (202) equidistantly arranged on the outer circumference of the outer rod (201). A cavity (4) is opened on the shell cover (102). A drive assembly for driving the outer rod (201) to rotate is provided in the cavity (4). The grinding assembly is located below the dehulling assembly and is used to grind the dehulled buckwheat granules. The grinding assembly includes a second filter screen (601) slidably installed inside the housing (101), a rotating rod (602) rotatably connected to the second filter screen (601), and a plurality of grinding blades (603) equidistantly arranged on the outer circumference of the rotating rod (602). The mesh size of the second filter screen (601) is smaller than that of the first filter screen (3). The collection box (103) is provided with a second driving assembly for driving the rotating rod (602) to rotate. The blowing and separating component is disposed on the housing (101) and located between the dehulling component and the grinding component. The blowing and separating component is used to separate the buckwheat hulls from the buckwheat grains.
2. The small-scale buckwheat dehulling and grinding mill according to claim 1, characterized in that: The drive assembly includes a drive bevel gear (501) and a driven bevel gear (502) meshing with the drive bevel gear (501). One end of the outer rod (201) extends into the interior of the cavity (4) and is rotatably connected to the cover (102). The outer rod (201) is connected to the driven bevel gear (502). A motor (9) is provided in the cavity (4). The output end of the motor (9) is connected to the drive bevel gear (501) through a rotating shaft (10).
3. A small buckwheat dehulling and grinding mill according to claim 2, characterized in that: The drive assembly one also includes a driven bevel gear two (503) that meshes with the driving bevel gear (501). An inner rod (11) is rotatably connected to the cover (102), and the inner rod (11) is coaxially rotatably connected to the inside of the outer rod (201). The driven bevel gear two (503) is connected to one end of the inner rod (11). A square groove one (12) is provided at the other end of the inner rod (11). A square block one (13) that matches the square groove one (12) is provided at the bottom of the filter screen one (3).
4. A small buckwheat dehulling and grinding mill according to claim 1, characterized in that: The second drive assembly includes a second motor (701) and a drive rod (702) connected to the output end of the second motor (701). The collection box (103) has a cavity (14) inside. The second motor (701) is located inside the cavity (14). One end of the drive rod (702) extends into the inside of the box (101) and is rotatably connected to the collection box (103). A square block (15) is connected to the drive rod (702). A square groove (16) that matches the square block (15) is opened at the bottom of the rotating rod (602).
5. A small buckwheat dehulling and grinding mill according to claim 1, characterized in that: The inner wall of the housing (101) is provided with an annular groove (17) that is adapted to the outer edge of the filter screen (3), and the bottom of the annular groove (17) is provided with a plurality of balls (18).
6. A small buckwheat dehulling and grinding mill according to claim 1, characterized in that: The bottom of the filter screen 2 (601) is provided with a wedge ring 1 (20), and the rotating rod (602) is provided with a wedge ring 2 (21). When the lowest point of the wedge ring 1 (20) abuts against the highest point of the wedge ring 2 (21), the filter screen 2 (601) rises.
7. A small buckwheat dehulling and grinding mill according to claim 1, characterized in that: The blowing assembly includes a blowing fan (801) disposed on the housing (101) and an opening (802) disposed on the housing (101), wherein the blowing fan (801) and the opening (802) are arranged opposite to each other.
8. A small buckwheat dehulling and grinding mill according to claim 1, characterized in that: The inner wall of the filter screen (3) is provided with multiple friction strips (19).