Raw grain cleaning device

Abstract

The utility model relates to the technical field of unprocessed grain processing, in particular to an unprocessed grain cleaning device which comprises a cleaning device body, a cleaning box is arranged on the cleaning device body, a feeding port, a winnowing mechanism, a screening net plate and a guide hopper are sequentially arranged in the cleaning box from top to bottom, and material control plates are rotationally installed on the two sides of the lower portion of the feeding port. Supporting limiting blocks which are in contact fit with one another are arranged on the outer sides of the material control plates correspondingly, a mounting cover covers the outer side of the winnowing mechanism, first air inlet branch pipes are evenly connected to the side face of the mounting cover at intervals, and the side faces of the first air inlet branch pipes jointly communicate with an air inlet main pipe; and impurity outlets corresponding to each other in position are formed in one surface, opposite to the winnowing mechanism, of the cleaning box. According to the unprocessed grain cleaning device, the air nozzles are arranged below the screening net plate, light impurities attached to unprocessed grains can be further blown up, the impurity cleaning effect is improved, the time wasted by repeated cleaning is greatly shortened, and the unprocessed grain cleaning efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of raw grain processing technology, specifically a raw grain cleaning device. Background Technology

[0002] Raw grains refer to grains that are threshed but are unprocessed or ready to eat. Common raw grains include wheat, rice, soybeans, sorghum, corn, mung beans, barley, and broad beans. Raw grain cleaning devices can quickly and effectively remove impurities from raw grains, such as large impurities (grass roots, mud clods, etc.), medium and small impurities (empty grains, small rice stalks, etc.), and light impurities (rice husks, fragments, dust, etc.), thereby improving the quality and purity of the grains.

[0003] When cleaning light impurities from existing raw grains, air separation is usually used. Because the impurities are small, they are easy to remove. However, if a large amount of raw grain is processed at one time, the cleaning effect will be poor, and multiple cleanings will be required, which is a waste of time. Utility Model Content

[0004] The purpose of this utility model is to provide a raw grain cleaning device to solve the problem mentioned in the background art that when cleaning light impurities from raw grains in the current market, air separation is usually used. Impurities are easy to remove because of their small mass. However, if a large amount of raw grains are processed at one time, the cleaning effect will be poor, and multiple cleanings will be required, which is a waste of time.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a raw grain cleaning device, comprising a cleaning device body, a cleaning box on the cleaning device body, and a feeding port, an air separation mechanism, a screening screen, and a guide hopper arranged sequentially from top to bottom inside the cleaning box. Control plates are rotatably installed on both sides below the feeding port, and support limiting blocks that contact and cooperate with each other are respectively provided on the outer side of the control plates. An installation cover is provided on the outer side of the air separation mechanism, and first air inlet pipes are evenly spaced on the side of the installation cover. The first air inlet pipes are connected to a main air inlet pipe on their sides. An impurity outlet is opened on the side of the cleaning box opposite to the air separation mechanism, and a raw grain feeding conveyor belt and a raw grain unloading conveyor belt are respectively provided above and below the cleaning box. A second air inlet pipe connected to the main air inlet pipe is provided at the bottom of the guide hopper, and air nozzles are evenly spaced on the second air inlet pipe, and the air nozzles are sealed and snapped onto the guide hopper.

[0006] Preferably, a vibrating motor is installed below the cleaning box via a frame structure, and a transmission component that works in conjunction with the vibrating motor is installed inside the cleaning box, with the screening screen plate mounted on the transmission component.

[0007] Preferably, the side of the support limiting block that contacts the material control plate is an inclined surface, and an adjusting screw is welded and fixed on the other side of the support limiting block.

[0008] Preferably, a positioning sleeve is fitted onto the adjusting screw, and the positioning sleeve is inserted and fastened to the side of the cleaning box. A through hole is provided on the top of the positioning sleeve, and a gear rod is provided at the through hole of the positioning sleeve.

[0009] Preferably, the gear rod is perpendicular to the adjusting screw, and the gear rod meshes with the adjusting screw, and the adjusting screw is rotatably installed inside the cleaning box.

[0010] Preferably, the jet nozzles are distributed in a U-shape on the guide hopper, and the middle part of the guide hopper has a discharge port corresponding to the raw grain unloading conveyor belt.

[0011] Compared with existing technologies, the advantages of this invention are as follows: The raw grain cleaning device has air nozzles installed below the screening screen plate, which can further blow away light impurities adhering to the raw grain, improving the impurity cleaning effect and greatly reducing the time wasted on repeated cleaning, thus improving the raw grain cleaning efficiency. The raw grain cleaning device uses a U-shaped distribution of the air nozzles, which avoids affecting the discharge of impurities, and the raw grain feed rate can be easily controlled, ensuring the effective cleaning of the raw grain. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the internal structure of a grain cleaning device according to the present invention;

[0013] Figure 2 This is a top view of a grain cleaning device according to the present invention;

[0014] Figure 3 This is a top view of the cleaning box of a grain cleaning device according to this utility model;

[0015] Figure 4 This is a schematic diagram of the screening screen plate structure of a grain cleaning device according to the present invention;

[0016] Figure 5 This is a schematic diagram showing the relative position of the screening screen plate to the guide hopper in a grain cleaning device according to this utility model.

[0017] In the diagram: 1. Main body of the cleaning device; 2. Cleaning box; 3. Feeding port; 301. Control plate; 302. Support limit block; 303. Adjusting screw; 304. Gear rod; 305. Positioning sleeve; 4. Raw grain feeding conveyor belt; 5. Air separation mechanism; 501. Mounting cover; 502. First air inlet branch pipe; 503. Main air inlet pipe; 6. Guide hopper; 601. Discharge port; 7. Vibrating motor; 8. Screening screen plate; 801. Transmission component; 9. Second air inlet branch pipe; 901. Air nozzle; 10. Raw grain unloading conveyor belt; 11. Impurity outlet. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-5This utility model provides a technical solution: a grain cleaning device, including a main body 1, a cleaning box 2 on the main body 1, and a feeding port 3, an air separation mechanism 5, a screening screen 8, and a guide hopper 6 arranged sequentially from top to bottom inside the cleaning box 2. A vibrating motor 7 is installed below the cleaning box 2 via a frame structure, and a transmission component 801 that works with the vibrating motor 7 is installed inside the cleaning box 2. The screening screen 8 is installed on the transmission component 801. In this structure, the vibrating motor 7 is an existing motor used for vibrating screening. An adjustable eccentric block is installed at each end of the rotor shaft. The centrifugal force generated by the high-speed rotation of the shaft and the eccentric blocks is used to obtain the excitation force. The eccentric blocks generate eccentric force during rotation, causing the entire motor to vibrate, which is then transmitted by the transmission component 801. The material is fed to the screening screen plate 8, enabling vibratory screening. Larger impurities on the screening screen plate 8 are cleaned separately. Control plates 301 are rotatably mounted on both sides below the feed inlet 3. Supporting limit blocks 302 are respectively provided on the outer side of the control plates 301, engaging with each other. The side of the supporting limit block 302 that contacts the control plate 301 is inclined, and an adjusting screw 303 is welded and fixed to the other side of the supporting limit block 302. This structure allows control of the position of the supporting limit block 302 to control the angle of the adjusting screw 303, thus adjusting the feed channel. An installation cover 501 is provided on the outer side of the air separation mechanism 5. First air inlet pipes 502 are evenly spaced on the side of the installation cover 501, and the sides of the first air inlet pipes 502 are all connected to the main air inlet pipe 503. The cleaning box 2 has an impurity outlet 11 on the side opposite to the air separation mechanism 5. A grain feeding conveyor belt 4 and a grain unloading conveyor belt 10 are respectively located above and below the cleaning box 2. A positioning sleeve 305 is fitted onto the adjusting screw 303 and is inserted and secured to the side of the cleaning box 2. A through hole is provided on the top of the positioning sleeve 305, and a gear rod 304 is located at the through hole. This structure allows the positioning sleeve 305 to limit the movement of the adjusting screw 303. The positioning sleeve 305 is stably positioned relative to the cleaning box 2. The gear rod 304 is perpendicular to the adjusting screw 303 and meshes with it. The adjusting screw 303 is rotatably installed inside the cleaning box 2. This structure allows for... The rotation of the gear rod 304 enables the linear movement of the adjusting screw 303, thereby facilitating the control of the position of the support limit block 302. The bottom of the guide hopper 6 is provided with a second air intake pipe 9 connected to the main air intake pipe 503, and air nozzles 901 are evenly spaced on the second air intake pipe 9. The air nozzles 901 are sealed and snapped onto the guide hopper 6. The air nozzles 901 are distributed in a U-shape on the guide hopper 6, and the middle part of the guide hopper 6 is provided with an outlet 601 corresponding to the raw grain unloading conveyor belt 10. This structure sprays high-pressure gas upward through the air nozzles 901, which can blow up the light impurities adhering to the raw grain, thereby improving the cleaning effect of light impurities. The U-shaped distribution of the air nozzles 901 can avoid affecting the discharge of impurities from the impurity outlet 11.

[0020] Working Principle: When using this grain cleaning device, the grain is first conveyed to the feeding port 3 at the top of the cleaning box 2 via the grain feeding conveyor belt 4. By rotating the gear rod 304, the gear rod 304 meshes with the adjusting screw 303, enabling the adjusting screw 303 to move linearly. The positioning sleeve 305 limits the movement of the adjusting screw 303. When the support limit block 302 moves away from the control plate 301, the support surface of the control plate 301 retracts, allowing the control plate 301 to rotate, thereby opening the control plate 301 and allowing the grain to fall into the cleaning box 2. At this time, high-pressure gas enters the first air intake branch pipe 502 and the second air intake branch pipe 9 through the main air intake pipe 503. Inside, the first air inlet pipe 502 evenly distributes high-pressure gas into the mounting cover 501, enabling the air separation mechanism 5 to perform air separation on the raw grain. Meanwhile, the second air inlet pipe 9 sprays high-pressure gas from below the screening screen plate 8 through the jet nozzle 901, blowing away light impurities that have not been air-separated, allowing the light impurities to be more efficiently removed through the impurity outlet 11. The raw grain falling onto the screening screen plate 8 is screened by the vibration motor 7 through the vibration of the transmission component 801, causing the raw grain to fall into the guide hopper 6, and then be collected from the discharge port 601 onto the raw grain unloading conveyor belt 10, realizing the unloading and discharge of the raw grain. This achieves the efficient cleaning of light impurities by the main body of the cleaning device 1, thus completing a series of tasks.

[0021] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A grain cleaning device, comprising a cleaning device body (1), characterized in that: The main body (1) of the cleaning device is provided with a cleaning box (2), and the cleaning box (2) is provided with a feeding port (3), an air separation mechanism (5), a screening screen (8) and a guide hopper (6) from top to bottom. The feeding port (3) is rotatably installed on both sides below the feeding port (3), and the outer side of the control plate (301) is provided with mutually contacting and cooperating support limiting blocks (302). The outer side of the air separation mechanism (5) is covered with a mounting cover (501), and the side of the mounting cover (501) is evenly spaced with a first air inlet pipe (502), and the first air inlet... The side of the branch pipe (502) is connected to the main air intake pipe (503). The cleaning box (2) is provided with an impurity outlet (11) on the side opposite to the air separation mechanism (5). The cleaning box (2) is provided with a raw grain feeding conveyor belt (4) and a raw grain unloading conveyor belt (10) on the upper and lower sides respectively. The bottom of the guide hopper (6) is provided with a second air intake branch pipe (9) connected to the main air intake pipe (503). Air nozzles (901) are evenly spaced on the second air intake branch pipe (9), and the air nozzles (901) are sealed and snapped onto the guide hopper (6).

2. The grain cleaning device according to claim 1, characterized in that: The cleaning box (2) is equipped with a vibrating motor (7) through a frame structure, and a transmission component (801) that works with the vibrating motor (7) is installed inside the cleaning box (2), and the screening screen plate (8) is installed on the transmission component (801).

3. The grain cleaning device according to claim 1, characterized in that: The side of the support limiting block (302) that contacts the material control plate (301) is an inclined surface, and an adjusting screw (303) is welded and fixed on the other side of the support limiting block (302).

4. The grain cleaning device according to claim 3, characterized in that: The adjusting screw (303) is fitted with a positioning sleeve (305), and the positioning sleeve (305) is inserted and fastened to the side of the cleaning box (2). A through hole is opened on the top of the positioning sleeve (305), and a gear rod (304) is provided at the through hole of the positioning sleeve (305).

5. The grain cleaning device according to claim 4, characterized in that: The gear rod (304) is perpendicular to the adjusting screw (303), and the gear rod (304) meshes with the adjusting screw (303), and the adjusting screw (303) is rotatably installed in the cleaning box (2).

6. The grain cleaning device according to claim 1, characterized in that: The jet nozzles (901) are distributed in a U-shape on the guide hopper (6), and the middle part of the guide hopper (6) is provided with a discharge port (601) corresponding to the grain unloading conveyor belt (10).

Images