A millet processing rice milling device
Patent Information
- Application Number
- CN202522247018.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-24
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-10-24
AI Technical Summary
[0003]但是,一般的,传统的小米加工碾米装置多为 “分段式加工”,需人工将小米从进料环节转移到脱壳环节,再转移到筛选环节,中间存在等待间隙,传统装置常只有单一除杂步骤(如仅靠筛网过滤),易残留细小碎壳或粉尘,导致小米成品杂质较多,传统装置在长时间运行时,内部易因风力流动不畅导致温度升高,可能影响零件性能或导致小米受热变质;且部分部件缺乏稳定支撑,运行时震动较大
本实用新型在使用时,将小米放入进料斗后,通过螺旋碾棍的转动将小米和筛网进行摩擦托壳同时将小米向出料口输送,无需人工转移,同时一号电机可同步驱动脱壳和输送,整个流程连续无间断,大幅缩短加工耗时,同时通过风机和风机管,直接吸走脱壳产生的大部分碎壳,然后再通过筛盘的快速摇晃,二次过滤残余的粉尘和细小碎壳,最终从三号出料口排出的小米纯度更高,本实用新型通过机箱侧面开设通风孔,能平衡内部气压、降低温度,避免过热问题,提升了机器的稳定性,托盘还通过滑槽与滑轨配合滑动,减少运行震动,延长设备整体使用寿命。综上,本实用新型相较于传统的小米加工碾米装置加工效率更高,实现连续化作业,成品纯度更高,双重除杂更彻底,运行稳定性更强,延长设备寿命。
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Figure CN224749133U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of millet processing technology, specifically to a millet milling device for millet processing. Background Technology
[0002] The millet processing and milling device is a specialized piece of equipment that uses a mechanically automated process to dehull and remove impurities from raw millet, processing it into clean rice. Its core function is to solve the problem of processing millet from unhulled raw grain to edible clean rice, mainly comprising four key stages: Feeding: Raw millet is received through a top feed hopper, ensuring a stable flow of material into the processing system. Grinding and Hulling: A motor-driven spiral roller rubs against the millet inside a screen, crushing and removing the outer husk. Simultaneously, the spiral structure propels the millet forward. Impurity Removal: This stage consists of two steps: first, a fan and blower pipes remove the crushed husks generated during grinding; then, a secondary sieve screen removes residual dust and fine impurities, ensuring double-layer impurity removal. Discharge: Clean millet is discharged from a dedicated outlet, while crushed husks and dust are separated from other corresponding outlets, achieving separate collection of finished product and waste. The overall equipment uses a chassis as the main frame, combined with motors, supports, shafts, and other components, forming a complete and continuous automated processing system, reducing manual operation and improving the efficiency and quality of millet processing.
[0003] However, traditional millet milling equipment is generally "segmented processing," requiring manual transfer of millet from the feeding stage to the hulling stage, and then to the screening stage. There are waiting intervals in between. Traditional equipment often only has a single impurity removal step (such as relying solely on sieve filtration), which easily leaves behind small fragments of husk or dust, resulting in more impurities in the finished millet product. During long-term operation, traditional equipment is prone to internal temperature rise due to poor airflow, which may affect the performance of parts or cause the millet to deteriorate due to heat. In addition, some components lack stable support, resulting in significant vibration during operation.
[0004] Based on this, the present invention provides a millet processing and milling device to solve the above-mentioned technical problems. Utility Model Content
[0005] The purpose of this invention is to provide a milling device for processing millet, thereby solving the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides a milling device for processing millet, including a machine casing. A feeding hopper is installed on the top of the machine casing. Two No. 1 rotating wheels are installed on one side of the machine casing. A No. 2 rotating wheel is installed at the bottom of the two No. 1 rotating wheels. A No. 1 leather ring is installed on the two No. 1 rotating wheels and the No. 2 rotating wheel. A No. 1 motor is installed on the back of the machine casing. A No. 2 leather ring is installed on the No. 1 motor and the No. 2 rotating wheel. A No. 1 discharge port is installed at the bottom of one side of the machine casing. A fan pipe is installed on the top of the No. 1 discharge port. The fan pipe is fixedly connected to a fan. A No. 1 bracket is installed at the bottom of the No. 1 motor and the fan.
[0007] Preferably, the machine casing is provided with two screens inside, each screen is provided with a spiral roller inside, each spiral roller is fixedly connected to a first rotating shaft, and each screen is provided with a number of screen holes.
[0008] Preferably, the other side of the chassis is provided with several ventilation holes, and a second discharge port is provided below the ventilation holes.
[0009] Preferably, a screen is provided below the second discharge port, a third discharge port is opened at one end of the screen, the bottom of the screen is fixedly connected to the tray, and a fourth discharge port is opened at one end of the tray.
[0010] Preferably, the bottom ends of both sides of the tray are fixedly connected to the slide grooves, the two slide grooves are slidably connected to the slide rails, the slide rails are fixedly connected to the second bracket, and the bottom of the chassis is fixedly connected to the third bracket.
[0011] Preferably, one end of the tray is fixedly connected to two connecting plates, the two connecting plates are fixedly connected to a second connecting rod, the second connecting rod is fixedly connected to a second rotating shaft, one end of the second rotating shaft is fixedly connected to a first connecting rod, the first connecting rod is fixedly connected to a rotating plate, the rotating plate is fixedly connected to a second motor, and a support is provided below the second motor.
[0012] Compared with the prior art, the beneficial effects of this utility model are: In operation, millet is fed into the hopper, where the rotating spiral rollers rub against the screen to remove the husks and simultaneously convey the millet to the outlet. No manual transfer is required. A single motor drives both the hulling and conveying processes continuously, significantly reducing processing time. A fan and fan pipes directly remove most of the broken husks generated during hulling, followed by a second filtration of residual dust and fine husks through rapid shaking of the screen. The millet discharged from the third outlet has a higher purity. Ventilation holes on the side of the machine balance internal air pressure, reduce temperature, and prevent overheating, improving machine stability. The tray slides using grooves and rails, reducing vibration and extending the overall lifespan of the equipment. In summary, compared to traditional millet processing devices, this invention offers higher processing efficiency, continuous operation, higher product purity, more thorough double impurity removal, stronger operational stability, and extended equipment lifespan. Attached Figure Description
[0013] Figure 1 This is a side view of the millet processing and milling device of this utility model; Figure 2 This is a schematic diagram of the internal structure of a millet processing and milling device according to the present invention; Figure 3 This is a schematic diagram of the other side of the millet processing and milling device of this utility model; Figure 4 This is a schematic diagram of the screen mechanism of a millet processing and milling device according to the present invention.
[0014] Legend: 1. Chassis; 2. Feed hopper; 3. First impeller; 4. Second impeller; 5. First leather ring; 6. First motor; 7. Fan; 8. First support; 9. Second leather ring; 10. First discharge port; 11. Fan pipe; 12. Screen; 13. Screen mesh; 14. First rotating shaft; 15. Spiral roller; 16. Second discharge port; 17. Screen plate; 18. Third discharge port; 19. Tray; 20. Fourth discharge port; 21. Slide groove; 22. Slide rail; 23. Second support; 24. Third support; 25. Second motor; 26. First connecting rod; 27. Second rotating shaft; 28. Connecting plate; 29. Second connecting rod; 30. Frame support; 31. Rotating plate; 32. Ventilation hole. Detailed Implementation
[0015] The following section will describe the technical solutions of this utility model clearly and completely with reference to the embodiments thereof. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example
[0016] Please see Figures 1 to 4 A millet milling device includes a casing 1, a feeding hopper 2 installed on the top of the casing 1, two first-stage rotating wheels 3 installed on one side of the casing 1, a second-stage rotating wheel 4 installed at the bottom of the two first-stage rotating wheels 3, a first-stage rubber ring 5 installed on the two first-stage rotating wheels 3 and the second-stage rotating wheel 4, a first-stage motor 6 installed on the back of the casing 1, a second-stage rubber ring 9 installed on the first-stage motor 6 and the second-stage rotating wheel 4, a first-stage discharge port 10 installed on the bottom of one side of the casing 1, a fan pipe 11 installed on the top of the first-stage discharge port 10, the fan pipe 11 being fixedly connected to a fan 7, and a first-stage bracket 8 installed at the bottom of the first-stage motor 6 and the fan 7.
[0017] It should also be noted that the machine casing 1 has two screens 12 inside, and each screen 12 has a spiral roller 15 inside. Each spiral roller 15 is fixedly connected to the first rotating shaft 14, and each screen 12 has several screen holes 13.
[0018] Please see Figure 1 First, millet is placed into hopper 2. The millet enters the screen 12 through hopper 2. The operation of motor 6 drives the rotation of belt ring 9. The rotation of belt ring 9 drives the rotation of wheel 4. Wheel 4 drives the rotation of two wheels 3. Wheel 3 drives the rotation of shaft 14. Shaft 14 drives the rotation of spiral grinding roller 15. The millet is conveyed forward by the rotation of spiral grinding roller 15 and rubs against screen 12. The screen holes 13 crush and peel off the outer shell of the millet. The outer shell falls through the screen holes 13. At the same time, fan 7 sucks air through fan pipe 11 to discharge the crushed outer shell to outlet 10. A bracket 8 is installed below motor 6 and fan 7 for support and fixation.
[0019] It should also be noted that the other side of the casing 1 is provided with several ventilation holes 32, and a second discharge port 16 is opened below the ventilation holes 32.
[0020] Please see Figure 3Several ventilation holes 32 are provided on one side of the casing 1. When the fan 7 is working, it can maintain the stability of the wind force, the air circulation, reduce the temperature inside the casing 1, and prevent the temperature from getting too high. The millet that has been shelled is transported to the second discharge port 16 along the rotation of the spiral grinding roller 15.
[0021] It should also be noted that a screen plate 17 is provided below the second discharge port 16, and a third discharge port 18 is opened at one end of the screen plate 17. The bottom of the screen plate 17 is fixedly connected to the tray 19, and a fourth discharge port 20 is opened at one end of the tray 19.
[0022] Please see Figure 3 When the millet comes out of the second discharge port 16, it first falls onto the screen plate 17 below. Through the sieving action of the screen plate, the remaining dust and broken shells are discharged to the tray 19 for the second time. The screened millet is discharged from the third discharge port 18 along the inclined screen plate 17, and the dust and broken shells are discharged from the fourth discharge port 20 along the tray 19.
[0023] It should also be noted that the bottom ends of both sides of the tray 19 are fixedly connected to the slide groove 21, the two slide grooves 21 are slidably connected to the slide rail 22, the slide rail 22 is fixedly connected to the second bracket 23, and the bottom of the chassis 1 is fixedly connected to the third bracket 24.
[0024] It should also be noted that one end of the tray 19 is fixedly connected to two connecting plates 28, the two connecting plates 28 are fixedly connected to the second connecting rod 29, the second connecting rod 29 is fixedly connected to the second rotating shaft 27, one end of the second rotating shaft 27 is fixedly connected to the first connecting rod 26, the first connecting rod 26 is fixedly connected to the rotating plate 31, the rotating plate 31 is fixedly connected to the second motor 25, and a support 30 is provided below the second motor 25.
[0025] Please see Figure 4 When millet falls into the sieve tray 17, the second motor 25 starts to work. The operation of the second motor 25 drives the rotating plate 31 to rotate. The rotation of the rotating plate 31 drives the first connecting rod 26 to rotate together. The rotation of the first connecting rod 26 drives the rotating shaft 27 to move. The rotating shaft 27 pulls the second connecting rod 29 to drive the slide groove 21 under the tray 19 to slide on the slide rail 22. By shaking rapidly, the sieve tray 17 performs the screening work. A bracket 30 is installed below the second motor 25 for fixed support.
[0026] Detailed Implementation: When using this millet milling device, first pour the raw millet into the feed hopper 2 at the top of the machine casing 1. The millet will flow into the two screens 12 inside the machine casing 1 through the feed hopper 2. Start the first motor 6. The first motor 6 drives the second rotating wheel 4 to rotate through the second leather ring 9. The second rotating wheel 4 then drives the two first rotating wheels 3 to rotate through the first leather ring 5. This causes the first rotating shaft 14 connected to the first rotating wheel 3 to drive the spiral grinding roller 15 inside the screen 12 to rotate. Under the rotation of the spiral grinding roller 15, the millet is conveyed forward while interacting with the screen 12. Friction causes the outer shell to be crushed and fall through the screen holes 13 on the screen 12. At the same time, the blower 7 is started, and the blower 7 sucks the crushed outer shell through the blower pipe 11 to the first discharge port 10 at the bottom of one side of the machine box 1 for discharge. During the process, the ventilation hole 32 on the other side of the machine box 1 can maintain internal air circulation, stabilize the air force and reduce the temperature. The millet that has been shelled is conveyed by the spiral grinding roller 15 and discharged from the second discharge port 16 on the machine box 1, falling into the screen plate 17 below. At this time, the second motor 25 is started, and the second motor 25 drives the rotating plate 31 to rotate. The rotating plate 31 is connected by the first connecting rod 26. Pulling the second rotating shaft 27, the second rotating shaft 27 then drives the tray 19 through the second connecting rod 29 and the connecting plate 28, causing the sliding grooves 21 at the bottom of both sides of the tray 19 to slide on the slide rail 22, thereby causing the sieve tray 17 fixed to the tray 19 to shake rapidly, performing secondary screening of the millet. The remaining dust and broken shells fall into the tray 19 and are discharged from the fourth discharge port 20 on the tray 19. The screened millet is discharged from the third discharge port 18 along the inclined sieve tray 17. Throughout the process, the first motor 6 and the fan 7 are supported and fixed by the first bracket 8, the second motor 25 is supported and fixed by the bracket 30, the machine box 1 is supported and fixed by the third bracket 24, and the slide rail 22 is supported and fixed by the second bracket 23.
[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A milling device for processing millet, characterized in that, The machine includes a casing (1), a feed hopper (2) is installed on the top of the casing (1), two No. 1 rollers (3) are installed on one side of the casing (1), a No. 2 roller (4) is installed at the bottom of the two No. 1 rollers (3), a No. 1 leather ring (5) is installed on the two No. 1 rollers (3) and the No. 2 roller (4), a No. 1 motor (6) is installed on the back of the casing (1), a No. 2 leather ring (9) is installed on the No. 1 motor (6) and the No. 2 roller (4), a No. 1 discharge port (10) is installed at the bottom of one side of the casing (1), a fan pipe (11) is installed at the top of the No. 1 discharge port (10), the fan pipe (11) is fixedly connected to the fan (7), and a No. 1 bracket (8) is installed at the bottom of the No. 1 motor (6) and the fan (7).
2. The millet processing and milling device according to claim 1, characterized in that, The machine box (1) is equipped with two screens (12) inside. Each screen (12) is equipped with a spiral roller (15) inside. Each spiral roller (15) is fixedly connected to the first rotating shaft (14). Each screen (12) has several screen holes (13).
3. The millet processing and rice milling device according to claim 2, characterized in that, The other side of the casing (1) is provided with several ventilation holes (32), and a second discharge port (16) is opened below the ventilation holes (32).
4. The millet processing and milling device according to claim 3, characterized in that, Below the No. 2 discharge port (16) is a screen plate (17), and a No. 3 discharge port (18) is opened at one end of the screen plate (17). The bottom of the screen plate (17) is fixedly connected to the tray (19), and a No. 4 discharge port (20) is opened at one end of the tray (19).
5. A millet milling device for processing millet according to claim 4, characterized in that, The bottom ends of both sides of the tray (19) are fixedly connected to the slide groove (21), the two slide grooves (21) are slidably connected to the slide rail (22), the slide rail (22) is fixedly connected to the second bracket (23), and the bottom of the chassis (1) is fixedly connected to the third bracket (24).
6. The millet milling device according to claim 5, characterized in that, One end of the tray (19) is fixedly connected to two connecting plates (28), the two connecting plates (28) are fixedly connected to the second connecting rod (29), the second connecting rod (29) is fixedly connected to the second rotating shaft (27), one end of the second rotating shaft (27) is fixedly connected to the first connecting rod (26), the first connecting rod (26) is fixedly connected to the rotating plate (31), the rotating plate (31) is fixedly connected to the second motor (25), and a bracket (30) is provided below the second motor (25).