A multi-stage screening controlled rice huller

Abstract

The utility model discloses a multistage screening control's rice huller, including rice huller body, the rice huller body is provided with the screening channel that the mixture of rough rice chaff after peeling falls, install multistage screening structure that assists rough rice and chaff separation in the path of screening channel, one end of screening channel is connected with the air suction structure that can suck the chaff in rough rice chaff mixture and the discharge structure that supplies rough rice and discharges, in the utility model discloses multistage screening structure, the inclined setting of first fish scale board and second fish scale board forms the ladder -like path, prolongs the screening time of grain, and multilayer gully structure can make the process of grain shell grain rolling and gradually hang up, reduces the situation that grain shell falls with rough rice, and the blast structure directly blows into the gully, can blow up the grain shell that hangs, makes grain shell with air suction structure through the top separation of rice huller, compared with the existing easy to be pressed by grain blowing mode, separates more thoroughly.

Description

Technical Field

[0001] This utility model relates to the technical field of rice processing equipment, specifically a rice huller with multi-stage screening control. Background Technology

[0002] Traditional rice hullers rely on a single wind-driven suction or a simple mechanical screening structure to separate rice husks and brown rice. When the rice husks and brown rice fall from the screening channel, although the weight difference between the two can achieve initial separation, some rice husks will still be mixed into the brown rice due to factors such as adhesion to the brown rice and airflow disturbance during the fall, resulting in poor screening effect.

[0003] A search revealed a rice huller with a screening function in patent application CN112808584B. As brown rice mixed with some husks slides down the bottom plate of the screening channel into the discharge hopper, a drive unit rotates a movable plate upwards, throwing the husks and brown rice upwards for further screening of the husks within the brown rice using airflow. Simultaneously, as the movable plate rotates downwards, an air-jet mechanism is compressed, spraying air into the mesh of the movable plate's base plate. This blows air onto the brown rice and husks sliding onto the protective mesh of the movable plate, lifting the husks from the brown rice upwards for further screening by airflow, ultimately improving the husk screening effect.

[0004] The aforementioned patent uses an airbag to blow the grain at its lowest point of fall. While this can effectively separate the husks, the grain falling from above will continue to fall above the blowing point, which may cause the grain to press down on the husks that are about to be blown up, knocking the rising husks down and affecting the separation of the husks from the brown rice. Utility Model Content

[0005] The purpose of this invention is to provide a rice huller with multi-stage screening control. By setting a multi-stage screening structure with a first fish-scale plate and a second fish-scale plate, combined with a blower structure and a swing structure, the separation effect of rice husk and brown rice is improved.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage sieving control rice huller, comprising a rice huller body, wherein a sieving channel is provided within the rice huller body for the hulled brown rice and bran mixture to fall, a multi-stage sieving structure for assisting in the separation of brown rice and bran is installed within the path of the sieving channel, and one end of the sieving channel is connected to a suction structure capable of sucking out the bran from the brown rice and bran mixture and a discharge structure for discharging brown rice;

[0007] The multi-stage screening structure includes a first fish-scale plate and a second fish-scale plate. The upper surfaces of the first fish-scale plate and the second fish-scale plate have grooves for the rice husks to hang. The grooves are equipped with a blower structure that can blow up the rice husks. A swinging structure for the second fish-scale plate to swing is installed below the first fish-scale plate.

[0008] Preferably, the blower structure includes a blower opening, which is opened in the grooves of the first and second fish scale plates and communicates with the inner cavities of the first and second fish scale plates. The outer surfaces of the first and second fish scale plates are provided with air inlets that communicate with the blower opening.

[0009] Preferably, the swing structure includes a first connector fixed to the bottom of the first fish scale plate and a second connector fixed to one end of the second fish scale plate. A rotating rod is fixed to one end of the second connector. The rotating rod is rotatably connected to the first connector through a bearing. A swing motor is installed on one side of the first connector. The output end of the swing motor is fixedly connected to the rotating rod.

[0010] Preferably, the first fish scale plate is inclined relative to the screening channel, and the second fish scale plate is inclined relative to the first fish scale plate.

[0011] Preferably, the air intake structure includes an air inlet channel and an air outlet channel. The air inlet channel is located on one side of the screening channel, and the air outlet channel is located on the top of the rice huller body. Both the air inlet channel and the air outlet channel are connected to the screening channel.

[0012] Preferably, the discharge structure includes a discharge port disposed at the bottom of the screening channel and a hopper fixed at the discharge port, the hopper being located below the air inlet.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In the multi-stage screening structure of this utility model, the inclined arrangement of the first and second fish-scale plates forms a stepped path, which prolongs the screening time of the grain. The multi-layer groove structure allows the husks to be retained step by step during the rolling of the grains, reducing the situation where the husks fall with the brown rice. The blowing structure blows air directly into the grooves, which can blow up the retained husks and allow the husks to pass through the separation point at the top of the rice huller with the suction structure. Compared with the existing blowing method that is easily suppressed by the grains, the separation is more thorough and can realize multi-stage screening of the husks.

[0015] 2. The swing structure of this utility model drives the second fish scale plate to swing. Due to inertia, the grains falling on the second fish scale plate are thrown and hit the second fish scale plate. During the throwing process, the brown rice will not be compacted with the husk, which is conducive to the separation of brown rice and husk. The husk is separated from the brown rice by the suction structure, reducing the phenomenon of husk being mixed into the brown rice again. Attached Figure Description

[0016] Figure 1 This is an isometric drawing of this utility model;

[0017] Figure 2 This is a schematic diagram showing the position of the multi-stage screening structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the multi-stage screening structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the swing structure of this utility model.

[0020] In the diagram: 1. Rice huller body; 2. Screening channel; 3. Multi-stage screening structure; 4. Suction structure; 5. Discharge structure;

[0021] 301. First fish-scale plate; 302. Second fish-scale plate; 303. Groove; 304. Blowering structure; 305. Swinging structure;

[0022] 3041, air inlet; 3042, air intake;

[0023] 3051, First connecting piece; 3052, Second connecting piece; 3053, Rotating rod; 3054, Swing motor;

[0024] 401. Air inlet duct; 402. Air outlet duct;

[0025] 501. Hopper; 502. Discharge port. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-4 This utility model provides a technical solution: a multi-stage sieving control rice huller, including a rice huller body 1, a sieving channel 2 for the falling of the unhulled brown rice and bran mixture inside the rice huller body 1, a multi-stage sieving structure 3 for assisting in the separation of brown rice and bran installed in the path of the sieving channel 2, and a suction structure 4 for sucking out the bran in the brown rice and bran mixture and a discharge structure 5 for discharging brown rice.

[0028] After the hulled brown rice and bran mixture enter the screening channel 2, it will pass through the multi-stage screening structure 3 during the falling process. This structure assists in separating the brown rice and bran through mechanical action. At the same time, the airflow generated by the suction structure 4 will suck out the separated bran, while the brown rice will be discharged through the discharge structure 5.

[0029] The multi-stage screening structure 3 includes a first fish-scale plate 301 and a second fish-scale plate 302. The upper surfaces of the first fish-scale plate 301 and the second fish-scale plate 302 are formed with grooves 303 for the husks to hang. A blower structure 304 capable of blowing up the husks is provided in the grooves 303. A swing structure 305 for the second fish-scale plate 302 to swing is installed below the first fish-scale plate 301.

[0030] like Figure 3 As shown, the grooves 303 on the surfaces of the first fish-scale plate 301 and the second fish-scale plate 302 can utilize the light texture and easy retention of the rice husk to keep the rice husk in the grooves 303 when the grain rolls down; the blowing structure 304 in the grooves 303 can blow out airflow to blow up the retained rice husk, making it easier for it to be sucked away by the suction structure 4; the swinging structure 305 can drive the second fish-scale plate 302 to swing, further promoting the separation of the rice husk from the brown rice.

[0031] The blower structure 304 includes a blower outlet 3041, which is located within the grooves 303 of the first fish-scale plate 301 and the second fish-scale plate 302 and communicates with the inner cavities of the first fish-scale plate 301 and the second fish-scale plate 302. An air inlet 3042, communicating with the blower outlet 3041, is provided on the exterior of the first fish-scale plate 301 and the second fish-scale plate 302. The air inlet 3042 of the blower structure 304 introduces external airflow, which is transmitted through the inner cavities of the first fish-scale plate 301 and the second fish-scale plate 302 to the blower outlet 3041. The blower outlet 3041 directly blows air into the grooves 303, thereby blowing up the chaff hanging in the grooves 303.

[0032] The swing structure 305 includes a first connector 3051 fixed to the bottom of the first fish scale plate 301 and a second connector 3052 fixed to one end of the second fish scale plate 302. A rotating rod 3053 is fixed to one end of the second connector 3052. The rotating rod 3053 is rotatably connected to the first connector 3051 through a bearing. A swing motor 3054 is installed on one side of the first connector 3051. The output end of the swing motor 3054 is fixedly connected to the rotating rod 3053.

[0033] When the swing motor 3054 is running, its output end drives the rotating rod 3053 to rotate. The rotating rod 3053 drives the second fish scale plate 302 to swing around the rotating rod 3053 as the axis through the second connecting member 3052. The first connecting member 3051 provides fixed support for the rotating rod 3053 and the swing motor 3054, so that the swing of the second fish scale plate 302 is stable.

[0034] The first fish-scale plate 301 is inclined relative to the screening channel 2, and the second fish-scale plate 302 is inclined relative to the first fish-scale plate 301. Figure 2 and Figure 3 As shown, the first fish-scale plate 301 is inclined relative to the screening channel 2, allowing the grain to roll downwards along the plate surface under the action of gravity; the second fish-scale plate 302 is inclined relative to the first fish-scale plate 301, forming a stepped path, and the grain continues to roll after rolling from the first fish-scale plate 301 to the second fish-scale plate 302; the movement path and time of the grain in the screening channel 2 are extended, the contact opportunity between the husk and the fish-scale plate is increased, and more husk is retained in the grooves 303, improving the separation effect;

[0035] The suction structure 4 includes an air inlet channel 401 and an air outlet channel 402. The air inlet channel 401 is located on one side of the screening channel 2, and the air outlet channel 402 is located on the top of the rice huller body 1. Both the air inlet channel 401 and the air outlet channel 402 are connected to the screening channel 2. When the suction structure 4 is working, the airflow enters the screening channel 2 from the air inlet channel 401, carrying the separated rice husks out of the rice huller body 1 from the air outlet channel 402, thus collecting the rice husks. The airflow also draws the lighter rice husks away from the mixture, and in conjunction with the multi-stage screening structure 3, improves the separation efficiency of rice husks and brown rice.

[0036] The discharge structure 5 includes a discharge port 502 located at the bottom of the screening channel 2 and a hopper 501 fixed at the discharge port 502. The hopper 501 is located below the air inlet 3042. After multi-stage screening and suction treatment, the brown rice falls from the discharge port 502 at the bottom of the screening channel 2 under the action of gravity and enters the hopper 501 for collection.

[0037] When in use, the mixture of peeled brown rice and husk enters the screening channel 2 inside the rice huller body 1 and begins to fall along the channel;

[0038] The mixture first comes into contact with the first fish scale plate 301, which is inclined relative to the screening channel 2. Due to gravity, it rolls down along the surface of the first fish scale plate 301. During the process, some of the husks will be stuck in the grooves 303 on the upper surface of the first fish scale plate 301.

[0039] The blower structure 304 in the groove 303 of the first fish scale plate 301 works, and the external airflow enters the inner cavity of the first fish scale plate 301 through the air inlet 3042, and then blows out through the air outlet 3041 in the groove 303, blowing up the attached rice husks.

[0040] The mixture continues to roll down to the second fish scale plate 302, which is inclined relative to the first fish scale plate 301. At this time, the swing structure 305 is activated: the swing motor 3054 drives the rotating rod 3053 to rotate. The rotating rod 3053 causes the second fish scale plate 302 to swing around the rotating rod 3053 as the axis through the second connecting member 3052. The inertia causes the grains falling on the second fish scale plate 302 to be thrown and hit the plate surface, promoting the separation of brown rice and husk. Some of the husk is left in the grooves 303 of the second fish scale plate 302.

[0041] The blower structure 304 in the groove 303 of the second fish scale plate 302 works synchronously, introducing airflow through the air inlet 3042 and blowing up the chaff in the groove 303 through the blower 3041.

[0042] During the above process, the suction structure 4 continues to operate, and the airflow enters the screening channel 2 from the air inlet channel 401, bringing the rice husks blown up at the first fish scale plate 301 and the second fish scale plate 302 into the airflow. Finally, the rice husks are discharged from the rice huller body 1 through the air outlet channel 402 along with the airflow.

[0043] After multi-stage screening and suction separation, the brown rice continues to fall along the screening channel 2 and finally enters the hopper 501 from the bottom outlet 502, completing the collection of brown rice.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rice huller with multi-stage screening control, characterized in that: Includes a rice huller body (1), wherein the rice huller body (1) is provided with a screening channel (2) for the hulled brown rice and bran mixture to fall, and a multi-stage screening structure (3) for assisting in the separation of brown rice and bran is installed in the path of the screening channel (2). One end of the screening channel (2) is connected to a suction structure (4) that can suck out the bran in the brown rice and bran mixture and a discharge structure (5) for discharging brown rice. The multi-stage screening structure (3) includes a first fish scale plate (301) and a second fish scale plate (302). The upper surfaces of the first fish scale plate (301) and the second fish scale plate (302) are formed with grooves (303) for the rice husks to hang. A blower structure (304) capable of blowing up the rice husks is provided in the grooves (303). A swing structure (305) for the second fish scale plate (302) to swing is installed below the first fish scale plate (301).

2. The rice huller with multi-stage screening control according to claim 1, characterized in that: The blower structure (304) includes a blower port (3041), which is opened in the groove (303) of the first fish scale plate (301) and the second fish scale plate (302) and communicates with the inner cavity of the first fish scale plate (301) and the second fish scale plate (302). The first fish scale plate (301) and the second fish scale plate (302) are provided with an air inlet (3042) communicating with the blower port (3041) on the outside.

3. A rice huller with multi-stage screening control according to claim 2, characterized in that: The swing structure (305) includes a first connector (3051) fixed to the bottom of the first fish scale plate (301) and a second connector (3052) fixed to one end of the second fish scale plate (302). A rotating rod (3053) is fixed to one end of the second connector (3052). The rotating rod (3053) is rotatably connected to the first connector (3051) through a bearing. A swing motor (3054) is installed on one side of the first connector (3051). The output end of the swing motor (3054) is fixedly connected to the rotating rod (3053).

4. A rice huller with multi-stage screening control according to claim 3, characterized in that: The first fish scale plate (301) is inclined relative to the screening channel (2), and the second fish scale plate (302) is inclined relative to the first fish scale plate (301).

5. A rice huller with multi-stage screening control according to claim 1, characterized in that: The suction structure (4) includes an air inlet channel (401) and an air outlet channel (402). The air inlet channel (401) is located on one side of the screening channel (2), and the air outlet channel (402) is located on the top of the rice huller body (1). Both the air inlet channel (401) and the air outlet channel (402) are connected to the screening channel (2).

6. A rice huller with multi-stage screening control according to claim 1, characterized in that: The discharge structure (5) includes a discharge port (502) located at the bottom of the screening channel (2) and a hopper (501) fixed at the discharge port (502), the hopper (501) being located below the air inlet (3042).

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