A machine for removing impurities from hulled grain kernels

Abstract

This application relates to the field of grain cleaning technology, and in particular to a machine for removing impurities from hulled grain kernels, including a support frame, a feed pipe, a grain transfer hood, a discharge pipe, an inclined filter plate, a waste removal component, and a vibrating component. The impurity removal machine for hulled grain kernels of this application modularly integrates the feed pipe, grain transfer hood, discharge pipe, inclined filter plate, waste removal component, and vibrating component onto a support frame, forming an integrated cleaning system. The material undergoes air separation, brushing filtration, and vibration grading sequentially in a closed environment, with smooth process connections and high space utilization. By installing a cleaning brush shaft driven by a DC motor and an arc-shaped filter plate inside the grain transfer hood, combined with the negative pressure airflow generated by the vacuum pump, continuous brushing and immediate waste removal of the material are achieved.

Description

Technical Field

[0001] This application relates to the field of grain cleaning technology, and in particular to a machine for removing impurities from hulled grain kernels. Background Technology

[0002] During harvesting, transportation, and hulling, grains inevitably become contaminated with various impurities. To obtain pure, high-grade finished grains, the hulled grain mixture must be effectively cleaned and graded before packaging or further processing.

[0003] Chinese utility model patent with authorization announcement number CN222885634U discloses a grain milling and impurity removal device. The device is installed on the milling machine to effectively remove impurities stuck on the drying screen. The vibrating component can effectively shake the impurities stuck on the screen out, so that the suction pipe can suck the impurities off the screen, avoiding the impact of stuck impurities on subsequent screening. This effectively solves the problem of easy clogging in the current grain milling and impurity removal process.

[0004] Regarding the aforementioned technologies, the inventors believe the following technical defects require improvement: The dehulled material is a complex mixture composed of whole grains, broken grains, immature grains, and light husks, dust, etc. Existing mainstream cleaning equipment mainly relies on the combined principle of airflow and screen vibration for separation; for light broken grains and husks that are similar in size to whole grains, simple air separation can easily lead to the light broken grains being blown away along with them, resulting in waste, or incomplete cleaning due to their similar suspension velocities; secondly, traditional vibrating screens are prone to screen hole clogging when handling highly adhesive fine impurities, especially under high humidity conditions, which seriously affects screening efficiency and continuity, often requiring machine shutdown for manual cleaning, thus reducing production efficiency. Utility Model Content

[0005] This application provides an impurity removal machine for dehulled grain kernels to improve the following technical problems: For light broken grains and chaff with a size similar to that of whole grains, simple air separation can easily cause the light broken grains to be blown away along with them, resulting in waste, or because their suspension velocities are similar, they cannot be cleaned thoroughly; secondly, when traditional vibrating screens handle fine impurities with strong adhesion, screen holes are prone to clogging, especially under high humidity conditions, which seriously affects screening efficiency and continuity, often requiring machine shutdown for manual cleaning, thus reducing production efficiency.

[0006] This application provides a machine for removing impurities from dehulled grain kernels, employing the following technical solution:

[0007] A machine for removing impurities from hulled grain kernels includes a support frame, a feed pipe, a grain transfer hood, a discharge pipe, an inclined filter plate, a waste removal assembly, and a vibrating assembly. The feed pipe is fixedly connected to the outer side of the middle portion of the grain transfer hood, one side surface of the grain transfer hood is fixedly connected to the inner side of the support frame, the discharge pipe is fixedly connected to the bottom of the grain transfer hood, the inclined filter plate is disposed below the discharge pipe, the waste removal assembly is installed on the top of the support frame, and the vibrating assembly is installed on both sides of the inclined filter plate.

[0008] In one feasible technical solution of this application, the impurity removal assembly includes an air pump, an air guide seat, a DC motor, a cleaning brush shaft, and an arc-shaped filter. The air pump is installed on the top of the support frame. The two sides of the air guide seat are respectively screwed to the input end of the air pump and the top of the grain transfer hood. The DC motor is installed in the middle of the grain transfer hood. The cleaning brush shaft is fixedly connected to the outside of the output end of the DC motor. The arc-shaped filter is snapped into the inner side of the grain transfer hood near the air guide seat.

[0009] In one feasible technical solution of this application, the vibrating assembly includes an outer support bracket, a vertical motor, a vibrator, and a tray. The outer support bracket is fixedly connected to both sides of the inclined filter plate, the tray is fixedly connected to the bottom of the outer support bracket, the vertical motor is installed at the bottom of the support frame, and the vibrator is installed outside the output end of the vertical motor and is used to vibrate the tray at high frequency.

[0010] In one feasible technical solution of this application, the periphery of the vertical motor is further provided with several sets of annular array vibration isolation springs.

[0011] In one feasible technical solution of this application, a waste frame for receiving impurities is also provided below the inclined filter plate.

[0012] In one feasible technical solution of this application, an electromagnetic feeding valve is also provided on the outside of the feeding pipe.

[0013] In one feasible technical solution of this application, the vibrating material assembly is provided in two sets, and the two sets of vibrating material assemblies are symmetrically arranged on both sides of the inclined filter plate.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] This device modularly integrates the feed pipe, grain transfer hood, discharge pipe, inclined filter plate, impurity removal component, and vibrating component onto a support frame, forming an integrated cleaning system. Materials undergo air separation, brushing filtration, and vibration grading sequentially in a closed environment, with smooth process connections and high space utilization. Furthermore, by installing a cleaning brush shaft driven by a DC motor and arc-shaped filter plates inside the grain transfer hood, combined with negative pressure airflow generated by an air pump, continuous brushing and immediate impurity removal of the material are achieved. This structure effectively breaks up material clumps and prevents fine impurities from adhering to the filter pores, enhancing the primary cleaning effect while fundamentally avoiding screen clogging. A vertical motor drives a vibrator, causing the inclined filter plate to generate high-frequency micro-vibrations, allowing the grains to fully disperse and jump forward on the filter plate, achieving efficient and precise separation of residual broken grains from whole grains. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an impurity removal machine for dehulled grain particles according to an embodiment of this application.

[0018] Figure 2 This is a perspective view of the support frame in the embodiments of this application.

[0019] Figure 3 This is a cross-sectional view of the grain transfer cover in the embodiments of this application.

[0020] Figure 4 This is a distribution diagram of the vibrating material assembly in the embodiments of this application.

[0021] Figure 5 yes Figure 4 Enlarged view of part A in the middle.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Support frame; 2. Feed pipe; 3. Grain transfer cover; 4. Discharge pipe; 5. Inclined filter plate;

[0024] 6. Impurity removal assembly; 61. Air pump; 62. Air guide seat; 63. DC motor; 64. Cleaning brush shaft; 65. Arc-shaped filter;

[0025] 7. Vibrating assembly; 71. External support bracket; 72. Vertical motor; 73. Vibrator; 74. Tray;

[0026] 8. Vibration isolation spring; 9. Scrap frame; 10. Electromagnetic discharge valve. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0028] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0029] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0031] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0032] This application discloses an impurity removal machine for dehulled grain kernels. (Refer to...) Figures 1 to 5 The impurity removal machine for dehulled grain kernels includes a support frame 1, a feed pipe 2, a grain transfer hood 3, a discharge pipe 4, an inclined filter plate 5, an impurity removal component 6, and a vibrating component 7. The feed pipe 2 is fixedly connected to the outer side of the middle of the grain transfer hood 3. One side surface of the grain transfer hood 3 is fixedly connected to the inner side of the support frame 1. The discharge pipe 4 is fixedly connected to the bottom of the grain transfer hood 3. The inclined filter plate 5 is located below the discharge pipe 4. The impurity removal component 6 is installed on the top of the support frame 1. The vibrating component 7 is installed on both sides of the inclined filter plate 5.

[0033] Materials undergo air separation, brushing filtration and vibration grading in a closed environment, with smooth process connections, high space utilization, and effective improvement of overall cleaning efficiency.

[0034] The impurity removal assembly 6 includes an air pump 61, an air guide seat 62, a DC motor 63, a cleaning brush shaft 64, and an arc-shaped filter 65. The air pump 61 is installed on the top of the support frame 1. The two sides of the air guide seat 62 are screwed to the input end of the air pump 61 and the top of the grain transfer housing 3, respectively. The DC motor 63 is installed in the middle of the grain transfer housing 3. The cleaning brush shaft 64 is fixedly connected to the outside of the output end of the DC motor 63. The arc-shaped filter 65 is snapped into the inner side of the grain transfer housing 3 near the air guide seat 62.

[0035] The vibrating assembly 7 includes an outer support 71, a vertical motor 72, a vibrator 73, and a tray 74. The outer support 71 is fixedly connected to both sides of the inclined filter plate 5, and the tray 74 is fixedly connected to the bottom of the outer support 71. The vertical motor 72 is installed at the bottom of the support frame 1, and the vibrator 73 is installed outside the output end of the vertical motor 72 and is used to vibrate the tray 74 at high frequency.

[0036] A vertical motor 72 drives a vibrator 73, which in turn causes the inclined filter plate 5 to vibrate at high frequency and amplitude. This allows the grains to be fully dispersed and jump forward on the filter plate, achieving efficient and precise separation of residual broken grains from whole grains. At the same time, vibration isolation springs 8 installed around the vertical motor 72 can effectively absorb vibration energy and prevent vibration from being transmitted to the support frame 1, ensuring stable operation of the equipment and extending its service life.

[0037] The vertical motor 72 is also surrounded by several sets of ring-shaped array of vibration isolation springs 8.

[0038] Below the inclined filter plate 5, there is also a waste frame 9 for receiving impurities.

[0039] An electromagnetic discharge valve 10 is also installed on the outside of the discharge pipe 4.

[0040] An electromagnetic feed valve 10 is installed on the outside of the feed pipe 4 to achieve precise control of the material flow rate and avoid overfeeding from affecting the cleaning effect. The waste frame 9 set below the inclined filter plate 5 can collect the screened impurities in a concentrated manner, which is convenient for cleaning and transportation, helps to maintain a clean working environment, reduces the frequency of manual intervention, and improves the level of production automation.

[0041] Two sets of vibrating material components 7 are provided, and the two sets of vibrating material components 7 are symmetrically arranged on both sides of the inclined filter plate 5.

[0042] This equipment has two sets of vibrating material components 7 symmetrically arranged on both sides of the inclined filter plate 5. This ensures uniform vibration transmission without dead angles, effectively improving the consistency of screening efficiency and cleaning effect.

[0043] The usage process of the impurity removal machine for dehulled grain kernels according to the embodiments of this application is roughly as follows:

[0044] The hulled grain mixture is fed into the grain transfer hood 3 through the feed pipe 2. Simultaneously, the impurity removal component 6 is activated, with the DC motor 63 driving the cleaning brush shaft 64 to rotate, continuously brushing and dispersing the material. Combined with the negative pressure airflow generated by the suction pump 61, the brushed light husks, dust, and other impurities are directly sucked away through the air guide seat 62. During the brushing process, small impurities smaller than the grains are forced through the arc-shaped filter plate 65 for preliminary filtration. The material after primary cleaning falls through the discharge pipe 4 onto the inclined filter plate 5 for fine grading. The electromagnetic discharge valve 10 installed on the outside of the discharge pipe 4 precisely controls the material flow rate to prevent accumulation. Subsequently, the vibrating component 7 begins operation, with the vertical motor 72 driving the vibrator 73 to generate high-frequency vibration. The vibration is transmitted to the entire inclined filter plate 5 through the tray 74 and the outer support 71. To ensure stable operation, multiple sets of annular array vibration-damping springs 8 are installed around the vertical motor 72 to effectively absorb residual vibration. Under the action of vibration, the grains are fully dispersed on the inclined filter plate 5 and slide forward. Whole grains, as the material left on the sieve, slide out along the inclined plate and collect, entering the next process; while the small fragments and other impurities separated by the sieve pass through the sieve holes and fall into the waste frame 9 below for unified collection.

[0045] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A foreign matter removing machine for dehulled cereal kernels, characterized by, The system includes a support frame (1), a feed pipe (2), a grain transfer hood (3), a discharge pipe (4), an inclined filter plate (5), a waste removal assembly (6), and a vibrating assembly (7). The feed pipe (2) is fixedly connected to the outer side of the middle part of the grain transfer hood (3). One side surface of the grain transfer hood (3) is fixedly connected to the inner side of the support frame (1). The discharge pipe (4) is fixedly connected to the bottom of the grain transfer hood (3). The inclined filter plate (5) is located below the discharge pipe (4). The waste removal assembly (6) is installed on the top of the support frame (1). The vibrating assembly (7) is installed on both sides of the inclined filter plate (5).

2. The impurity removal machine for dehulled grain kernels according to claim 1, characterized in that, The impurity removal assembly (6) includes an air pump (61), an air guide seat (62), a DC motor (63), a cleaning brush shaft (64), and an arc-shaped filter (65). The air pump (61) is installed on the top of the support frame (1). The two sides of the air guide seat (62) are screwed to the input end of the air pump (61) and the top of the grain transfer hood (3), respectively. The DC motor (63) is installed in the middle of the grain transfer hood (3). The cleaning brush shaft (64) is fixedly connected to the outside of the output end of the DC motor (63). The arc-shaped filter (65) is snapped into the inner side of the grain transfer hood (3) near the air guide seat (62).

3. The impurity removal machine for dehulled grain kernels according to claim 1, characterized in that, The vibrating assembly (7) includes an outer support bracket (71), a vertical motor (72), a vibrator (73), and a tray (74). The outer support bracket (71) is fixedly connected to both sides of the inclined filter plate (5), and the tray (74) is fixedly connected to the bottom of the outer support bracket (71). The vertical motor (72) is installed at the bottom of the support frame (1), and the vibrator (73) is installed outside the output end of the vertical motor (72) and is used to vibrate the tray (74) at high frequency.

4. The impurity removal machine for dehulled grain kernels according to claim 3, characterized in that, The vertical motor (72) is also surrounded by several sets of ring-shaped array of vibration isolation springs (8).

5. The impurity removal machine for dehulled grain kernels according to claim 1, characterized in that, Below the inclined filter plate (5) is a waste frame (9) for receiving impurities.

6. The impurity removal machine for dehulled grain kernels according to claim 1, characterized in that, An electromagnetic feeding valve (10) is also provided on the outside of the feeding pipe (4).

7. The impurity removal machine for dehulled grain kernels according to claim 2, characterized in that, The vibrating material assembly (7) is provided in two sets, and the two sets of the vibrating material assembly (7) are symmetrically arranged on both sides of the inclined filter plate (5).

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