Special rice processing and impurity removing device

Abstract

The invention relates to a special rice processing and impurity removing device, and belongs to the rice processing and impurity removing device technology, the special rice processing and impurity removing device comprises a mounting box, a material guide plate is arranged on the mounting box, a centrifugal fan is arranged on one side of the mounting box, a mounting cover is arranged on the other side of the mounting box, a screening assembly is arranged in the mounting box, a first motor is mounted on the mounting cover, and the mounting box is provided with a material stirring assembly; by means of the adjustable air outlet area assembly, the air volume is controlled by adjusting the coverage area or the on-off state of the air outlet holes, the adaptability to different machining scenes is improved, through the screening assembly, mesh blockage is avoided, continuous and stable screening is ensured, and the screening efficiency is improved. And through the screening assembly, the centrifugal fan and the adjustable air outlet area assembly, the process sequence of light first, heavy first, easy first and difficult second is adopted, light impurities can be prevented from being mixed into the screening link to block meshes, the screening assembly can concentrate on separation of large-particle impurities, and the overall impurity removal efficiency is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of special rice processing and impurity removal devices, in particular to a special rice processing and impurity removal device. Background Art

[0002] In the specialty rice processing industry, efficient and precise impurity removal is undoubtedly the key link to ensure product quality. In the process of harvesting, transportation and storage, specialty rice will inevitably be mixed with various impurities such as stones, sand, rice husks, broken leaves, etc. The presence of these impurities will not only directly affect the taste and appearance of the specialty rice, but may also cause varying degrees of wear and tear on subsequent processing equipment, thereby reducing overall production efficiency. At present, the existing specialty rice impurity removal devices on the market generally adopt a single impurity removal method. For example, some devices only rely on a simple screening structure to screen the specialty rice through a fixed-size screen. Although this method can remove some larger particles of impurities, it is not very effective in separating light impurities such as rice husks and broken leaves. It is not ideal. What is more serious is that during long-term use, the screen is easily blocked by materials, resulting in a gradual decrease in screening efficiency and the need for frequent shutdowns for cleaning, which will undoubtedly seriously affect the continuity of production. Other devices use air separation technology to use wind power to blow away light impurities. However, due to the lack of precise control of wind power, such devices are difficult to adapt to the processing needs of specialty rice of different types and different impurity contents. When the wind power is too strong, some specialty rice may be blown out together, resulting in unnecessary waste of materials. When the wind power is too low, impurities cannot be effectively separated, resulting in a significant reduction in the impurity removal effect, making it difficult to meet the production requirements of high-quality specialty rice. Summary of the Invention

[0003] In order to overcome the technical defects of the existing technology, the present invention provides a special rice processing and impurity removal device, which has the functions of improving screening efficiency, avoiding clogging of the filter, flexibly adjusting the air volume, improving adaptability to different processing scenarios, and avoiding light impurities from mixing into the screening link and clogging the mesh by sorting light impurities first and then heavy, and easy impurities first and then difficult. At the same time, the screening component focuses on separating large-particle impurities, thereby significantly improving the overall impurity removal efficiency.

[0004] The technical solution adopted by the present invention is: it includes an installation box, the installation box is provided with an inclined material guide plate, a centrifugal fan is provided on one side of the installation box, and a mounting cover is provided on the other side of the installation box. A screening assembly that can move back and forth is provided inside the installation box, and a first motor for driving the screening assembly is installed on the installation cover. A material tapping assembly is provided inside the installation box and located on the material guide plate. A second motor for driving the material tapping assembly is provided on the installation box and located on one side of the centrifugal fan. An adjustable air outlet area assembly is provided on one side of the installation box, and the adjustable air outlet area assembly is fixedly connected to the output end of the centrifugal fan.

[0005] Preferably, in order to install the screening assembly, the installation box is provided with a socket, the socket passes through the installation box, and the installation box is provided with a discharge port.

[0006] Preferably, in order to filter and remove impurities from rice, the screening assembly includes a movable frame, a rotating shaft, a rotating shaft and a transmission shaft. The movable frame is slidably engaged inside the socket, the rotating shaft is rotatably mounted on the mounting cover, and the output end of the first motor is fixedly connected to the rotating shaft. The first motor drives the rotating shaft to rotate, the transmission shaft is rotatably mounted on the mounting box, and the rotating shaft is rotatably mounted inside the mounting box. An inclined filter screen is installed on the movable frame, the filter screen is plugged into the discharge port, and the filter screen is located below the guide plate.

[0007] Preferably, in order to make the movable frame shake, a return spring is connected to the movable frame, the other end of the return spring is connected to the mounting cover, a cam is installed on the rotating shaft, the cam is in contact with the movable frame, and the cam is located between the return springs, the first motor drives the rotating shaft to rotate, and the cam on the rotating shaft rotates accordingly, when the cam protrusion contacts the movable frame, the movable frame is pushed to overcome the elastic force of the return spring and slide along the jack in the direction away from the mounting cover, and when the cam protrusion rotates away from the movable frame, the elastic force of the return spring resets the movable frame.

[0008] Preferably, in order to knock the filter screen, sprockets are installed on the rotating shaft and the transmission shaft, and a chain is meshed between the sprockets. A group of transmission bevel gears is installed at one end of the rotating shaft, and a semi-bevel gear is installed at the other end of the transmission shaft. The semi-bevel gear is meshed with the transmission bevel gear, and a knocking plate for knocking the filter screen is connected to the rotating shaft. The transmission of the sprocket and the chain drives the transmission shaft to rotate synchronously, and the semi-bevel gear at the other end of the transmission shaft is meshed with the transmission bevel gear at one end of the rotating shaft, so that the rotating shaft rotates periodically, and the knocking plate connected to the rotating shaft intermittently knocks the filter screen.

[0009] Preferably, in order to facilitate the material to fall evenly on the material guide plate, the material diverter assembly includes a connecting shaft, the connecting shaft is rotatably installed inside the installation box, the connecting shaft is fixedly connected to the output end of the second motor, and the connecting shaft is provided with a material diverter plate arranged in an array, and the material diverter plate is located on the material guide plate, the second motor drives the connecting shaft to rotate, and the material diverter plates arranged in an array on the connecting shaft rotate accordingly.

[0010] Preferably, in order to transmit the wind to the air outlet hood, the adjustable air outlet area assembly includes an air outlet hood, the air outlet hood is connected to the mounting box, the air outlet hood is located at one end of the guide plate, and an air inlet pipe is connected to the air outlet hood, the other end of the air inlet pipe is fixedly connected to the output end of the centrifugal fan, and a connecting cover is provided on one side of the air outlet hood.

[0011] Preferably, in order to adjust the opening and closing degree of the air outlet holes, a worm gear is rotatably installed inside the air outlet cover, and a worm is rotatably installed inside the connecting cover, the worm is engaged with the worm gear, and a handwheel is installed at the other end of the worm gear, and the worm gear and the other end of the air outlet cover are provided with air outlet holes arranged in an array, and the handwheel is rotated to drive the worm gear to rotate, and the worm is engaged with the worm gear, thereby causing the worm gear to rotate inside the air outlet cover.

[0012] Preferably, in order to facilitate the removal of filtered impurities, a feed port is provided on the upper surface of the installation box, and an air separation debris outlet is provided on the side of the installation box opposite to the adjustable air outlet area component, and a baffle is clamped on one side of the installation box and located below the discharge port.

[0013] The beneficial effects of the present invention are:

[0014] 1. Through the screening assembly, the cam is driven by the rotating shaft, pushing the mobile frame to slide along the jack. Combined with the resilience of the reset spring, the filter screen vibrates back and forth periodically, accelerating the flow of materials and guiding them toward the discharge port through the tilt angle. At the same time, the rotating shaft is linked to the rotating shaft through the sprocket chain. The meshing of the semi-bevel gear and the transmission bevel gear drives the knocking plate to knock the filter screen periodically, effectively avoiding mesh blockage and ensuring a continuous and stable screening process.

[0015] 2. Through the adjustable air outlet area component, the worm rotates, driving the worm wheel to rotate synchronously, thereby adjusting the coverage area or on / off status of the array air outlet holes on the air outlet cover, thereby controlling the air volume and improving adaptability to different processing scenarios;

[0016] 3. Through the screening component, centrifugal fan, and adjustable air outlet area component, light impurities are accurately separated by wind and discharged through the air separation debris outlet with the air flow. After completing the air separation pretreatment, the material falls onto the inclined filter net of the screening component. The process sequence of light first, heavy second, easy first, difficult second avoids light impurities from mixing into the screening process and clogging the mesh. At the same time, the screening component focuses on separating large particles of impurities, significantly improving the overall impurity removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention from the left side perspective;

[0018] Figure 2 It is a structural schematic diagram of the present invention from the right side perspective;

[0019] Figure 3 This is a schematic diagram of the structure of the rear view perspective of the present invention;

[0020] Figure 4 It is a cross-sectional schematic diagram of the present invention;

[0021] Figure 5 It is a structural schematic diagram of the installation box of the present invention;

[0022] Figure 6 It is a schematic structural diagram of the screening assembly of the present invention;

[0023] Figure 7 for Figure 6 Schematic diagram of point A;

[0024] Figure 8 It is a structural schematic diagram of the material shifting assembly of the present invention;

[0025] Figure 9 is a cross-sectional schematic diagram of the adjustable air outlet area assembly of the present invention;

[0026] Figure 10 for Figure 9 Schematic diagram of point B.

[0027] Explanation of the accompanying reference numerals: In the figure: 1, installation box; 2, guide plate; 3, guide plate; 4, installation cover; 5, centrifugal fan; 6, screening assembly; 601, moving frame; 602, rotating shaft; 603, rotating shaft; 604, transmission shaft; 605, filter screen; 606, return spring; 607, cam; 608, sprocket; 609, chain; 610, transmission bevel gear; 611, semi-bevel gear; 612, knocking plate; 7. First motor; 8. Material shifting assembly; 801. Connecting shaft; 802. Material shifting plate; 9. Second motor; 10. Adjustable air outlet area assembly; 1001. Air outlet hood; 1002. Air inlet duct; 1003. Connecting hood; 1004. Worm gear; 1005. Worm; 1006. Handwheel; 1007. Air outlet; 11. Socket; 12. Material outlet; 13. Material inlet; 14. Air separation debris outlet; 15. Baffle. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings:

[0029] like Figures 1-10 As shown, this embodiment provides a special rice processing and impurity removal device, including an installation box 1, an inclined guide plate 3 is provided on the installation box 1, a centrifugal fan 5 is provided on one side of the installation box 1, and an installation cover 4 is provided on the other side of the installation box 1. A screening component 6 that can move back and forth is provided inside the installation box 1 to effectively avoid mesh blockage, ensure a continuous and stable screening process, and improve screening efficiency. A first motor 7 for driving the screening component 6 is installed on the installation cover 4, and a material shifting component 8 is provided inside the installation box 1 and on the guide plate 3 to evenly spread the special rice on the guide plate 3 to avoid material accumulation and ensure that each Each grain of specialty rice can be fully exposed to the wind, which is convenient for air separation and impurity removal. A second motor 9 for driving the material selection component 8 is provided on the installation box 1 and on one side of the centrifugal fan 5. An adjustable air outlet area component 10 is provided on one side of the installation box 1 to control the air volume and improve the adaptability to different processing scenarios. The adjustable air outlet area component 10 is fixedly connected to the output end of the centrifugal fan 5. The process sequence of light first and heavy later, easy first and difficult later avoids light impurities from mixing into the screening link and clogging the mesh. At the same time, the screening component 6 focuses on separating large particles of impurities, which significantly improves the overall impurity removal efficiency.

[0030] As a technical optimization solution of the present invention, specifically Figure 6As shown, the installation box 1 is provided with a socket 11, the socket 11 passes through the installation box 1, and the installation box 1 is provided with a discharge port 12. The screening assembly 6 includes a movable frame 601, a rotating shaft 602, a rotating shaft 603 and a transmission shaft 604. The movable frame 601 is slidably connected to the inside of the socket 11, the rotating shaft 602 is rotatably mounted on the installation cover 4, and the output end of the first motor 7 is fixedly connected to the rotating shaft 602, the transmission shaft 604 is rotatably mounted on the installation box 1, and the rotating shaft 603 is rotatably mounted inside the installation box 1. A filter screen 605 with an inclined setting is installed on the movable frame 601, and the filter screen 605 is plugged into the discharge port 12. The filter screen 605 is located at the guide Below the plate 3, a return spring 606 is connected to the movable frame 601, and the other end of the return spring 606 is connected to the mounting cover 4. A cam 607 is installed on the rotating shaft 602, and the cam 607 is in contact with the movable frame 601, and the cam 607 is located between the return spring 606. A sprocket 608 is installed on the rotating shaft 602 and the transmission shaft 604, and a chain 609 is engaged between the sprockets 608. A group of transmission bevel gears 610 is installed at one end of the rotating shaft 603, and a semi-bevel gear 611 is installed at the other end of the transmission shaft 604. The semi-bevel gear 611 is engaged with the transmission bevel gear 610, and the rotating shaft 603 is connected to a device for knocking the filter screen 605. The knocking plate 612 is driven by the first motor 7 to rotate the rotating shaft 602, and the cam 607 on the rotating shaft 602 rotates accordingly. When the raised part of the cam 607 contacts the movable frame 601, the movable frame 601 is pushed to overcome the elastic force of the return spring 606 and slide along the socket 11 in the direction away from the mounting cover 4. When the raised part of the cam 607 turns away from the movable frame 601, the elastic force of the return spring 606 resets the movable frame 601. This cycle is repeated to realize the reciprocating motion of the movable frame 601 in the socket 11. The inclined filter screen 605 on the movable frame 601 screens the special rice during the reciprocating motion, and heavy impurities such as stones and sand are separated due to the Unable to pass through the mesh of the filter 605, under the action of gravity and the vibration of the filter 605, it slides down the inclined surface of the filter 605 to the discharge port 12, and is driven by the sprocket 608 and the chain 609, driving the transmission shaft 604 to rotate synchronously, and the semi-bevel gear 611 at the other end of the transmission shaft 604 is engaged with the transmission bevel gear 610 at one end of the rotating shaft 603, so that the rotating shaft 603 rotates periodically, and the knocking plate 612 connected to the rotating shaft 603 intermittently knocks the filter 605, effectively preventing the special rice and impurities from clogging the mesh of the filter 605, ensuring that the screening process continues to be carried out efficiently, further improving the impurity removal effect, and improving the screening efficiency.

[0031] As a technical optimization solution of the present invention, specifically Figure 8As shown, the material-dividing assembly 8 includes a connecting shaft 801, which is rotatably installed inside the installation box 1. The connecting shaft 801 is fixedly connected to the output end of the second motor 9, and the connecting shaft 801 is provided with a material-dividing plate 802 arranged in an array, and the material-dividing plate 802 is located on the material guide plate 3. The second motor 9 drives the connecting shaft 801 to rotate, and the material-dividing plate 802 arranged in an array on the connecting shaft 801 rotates accordingly, and the special rice on the material guide plate 3 is evenly dispersed to avoid material accumulation, ensure that each grain of special rice can fully contact the wind, and the scattered special rice continues to slide down, thereby facilitating air separation and impurity removal.

[0032] As a technical optimization solution of the present invention, specifically Figure 9 As shown, the adjustable air outlet area component 10 includes an air outlet cover 1001, which is connected to the installation box 1, and the air outlet cover 1001 is located at one end of the guide plate 3. The air outlet cover 1001 is connected to an air inlet pipe 1002, and the other end of the air inlet pipe 1002 is fixedly connected to the output end of the centrifugal fan 5. The air outlet cover 1001 is provided with a connecting cover 1003 on one side. A worm gear 1004 is rotatably installed inside the air outlet cover 1001, and a worm 1005 is rotatably installed inside the connecting cover 1003. The worm 1005 is meshed with the worm gear 1004, and a hand wheel 1006 is installed at the other end of the worm gear 1005. The worm gear 1004 and the other end of the air outlet cover 1001 are provided with air outlet holes 1007 arranged in an array. Turning the hand wheel 1006 drives the worm 1005 to rotate. 1005 is engaged with the worm gear 1004, thereby causing the worm gear 1004 to rotate in the air outlet hood 1001, adjusting the opening and closing degree of the air outlet 1007 on the air outlet hood 1001, and a feed port 13 is provided on the upper surface of the installation box 1, and an air separation debris outlet 14 is provided on the installation box 1 and the side opposite to the adjustable air outlet area component 10. The strong wind force generated by the centrifugal fan 5 is transported to the air outlet hood 1001 through the air inlet pipe 1002 and blown out from the adjusted air outlet 1007, blowing up light impurities such as rice husks and broken leaves mixed in the special rice, so that they are discharged from the air separation debris outlet 14 on the other side of the installation box 1 along the direction of air flow, completing the air separation and impurity removal step, and a baffle 15 is clamped on one side of the installation box 1 and located below the discharge port 12. Removing the baffle 15 facilitates the removal of the special rice after impurities.

[0033] When the present invention is in use, the air volume needs to be adjusted according to the type of special rice to be processed, the impurity content and the particle size. By rotating the hand wheel 1006, the worm 1005 connected thereto is driven to rotate, and the worm 1005 is tightly meshed with the worm wheel 1004, so that the worm wheel 1004 rotates inside the air outlet cover 1001. The air volume is controlled by adjusting the opening and closing degree of the air outlet hole 1007 on the air outlet cover 1001. After the adjustment is completed, the special rice to be cleaned is poured into the feeding port 13 on the upper surface of the installation box 1, and the special rice slides downward along the inclined guide plate 3. During this process, the second motor 9 is started, and the second motor 9 drives the connecting shaft 801 to rotate. The connecting shaft 801 The dispensing plates 802 arranged in an array rotate accordingly, and evenly scatter the special rice on the guide plate 3 to avoid material accumulation, ensuring that each grain of special rice can fully contact the wind and screening components. The scattered special rice continues to slide down, and the first motor 7 and the centrifugal fan 5 are started at this time. The strong wind generated by the centrifugal fan 5 is transported to the air outlet 1001 through the air inlet pipe 1002 and blown out from the adjusted air outlet 1007. The strong wind blows up the light impurities such as rice husks and broken leaves mixed in the special rice, and makes them follow the direction of air flow and be discharged from the air separation debris outlet 14 on the other side of the installation box 1, thereby completing the air separation and impurity removal step. At the same time, the first motor 7 drives the rotating shaft 602 to rotate, and the rotating shaft 602 The cam 607 on the movable frame rotates accordingly. When the raised part of the cam 607 contacts the movable frame 601, the movable frame 601 is pushed to overcome the elastic force of the return spring 606 and slide along the socket 11 in the direction away from the mounting cover 4. When the raised part of the cam 607 rotates away from the movable frame 601, the elastic force of the return spring 606 resets the movable frame 601. This cycle is repeated to realize the reciprocating motion of the movable frame 601 in the socket 11. The inclined filter screen 605 on the movable frame 601 screens the special rice during the reciprocating motion. Heavy impurities such as stones and sand cannot pass through the mesh of the filter screen 605. Under the action of gravity and the vibration of the filter screen 605, they slide along the inclined surface of the filter screen 605 and fall from the discharge port. 12 is discharged, and the transmission shaft 604 is driven to rotate synchronously through the transmission of the sprocket 608 and the chain 609. The semi-bevel gear 611 at the other end of the transmission shaft 604 is engaged with the transmission bevel gear 610 at one end of the rotating shaft 603, so that the rotating shaft 603 rotates periodically, and the knocking plate 612 connected to the rotating shaft 603 intermittently knocks the filter screen 605, which effectively prevents the special rice and impurities from clogging the mesh of the filter screen 605, ensuring that the screening process is continuously and efficiently carried out, and further improving the impurity removal effect. The special rice after double impurity removal by screening and air separation finally falls to the bottom of the installation box 1. The baffle 15 is removed to facilitate the smooth removal of the special rice after impurities removal, thereby ensuring the smooth progress of the entire impurity removal process and the purity of the final product.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A special rice processing and impurity removal device, comprising an installation box (1), characterized in that: The installation box (1) is provided with an inclined material guide plate (3), a centrifugal fan (5) is provided on one side of the installation box (1), and a mounting cover (4) is provided on the other side of the installation box (1). A screening assembly (6) capable of reciprocating movement is provided inside the installation box (1), and a first motor (7) for driving the screening assembly (6) is installed on the installation cover (4). A material shifting assembly (8) is provided inside the installation box (1) and located on the material guide plate (3). A second motor (9) for driving the material shifting assembly (8) is provided on the installation box (1) and located on one side of the centrifugal fan (5). An adjustable air outlet area assembly (10) is provided on one side of the installation box (1), and the adjustable air outlet area assembly (10) is fixedly connected to the output end of the centrifugal fan (5).

2. The special rice processing and impurity removal device according to claim 1, characterized in that: The installation box (1) is provided with a socket (11), the socket (11) passes through the installation box (1), and the installation box (1) is provided with a discharge port (12).

3. The special rice processing and impurity removal device according to claim 2, characterized in that: The screening assembly (6) comprises a movable frame (601), a rotating shaft (602), a rotating shaft (603) and a transmission shaft (604); the movable frame (601) is slidably engaged in the interior of the socket (11); the rotating shaft (602) is rotatably mounted on the mounting cover (4); the output end of the first motor (7) is fixedly connected to the rotating shaft (602); the transmission shaft (604) is rotatably mounted on the mounting box (1); the rotating shaft (603) is rotatably mounted in the interior of the mounting box (1); an inclined filter screen (605) is mounted on the movable frame (601); the filter screen (605) is plugged into the discharge port (12); and the filter screen (605) is located below the guide plate (3).

4. The special rice processing and impurity removal device according to claim 3 is characterized in that: The movable frame (601) is connected to a return spring (606), the other end of which is connected to the mounting cover (4), and a cam (607) is mounted on the rotating shaft (602), the cam (607) is in contact with the movable frame (601), and the cam (607) is located between the return springs (606).

5. The special rice processing and impurity removal device according to claim 4 is characterized in that: Sprockets (608) are installed on the rotating shaft (602) and the transmission shaft (604), and a chain (609) is meshed between the sprockets (608). A group of transmission bevel gears (610) is installed on one end of the rotating shaft (603), and a semi-bevel gear (611) is installed on the other end of the transmission shaft (604). The semi-bevel gear (611) is meshed with the transmission bevel gear (610), and a knocking plate (612) for knocking the filter screen (605) is connected to the rotating shaft (603).

6. The special rice processing and impurity removal device according to claim 1, characterized in that: The material-diverting assembly (8) comprises a connecting shaft (801), the connecting shaft (801) being rotatably mounted inside the mounting box (1), the connecting shaft (801) being fixedly connected to the output end of the second motor (9), and the connecting shaft (801) being provided with material-diverting plates (802) arranged in an array, and the material-diverting plates (802) being located on the material guide plate (3).

7. The special rice processing and impurity removal device according to claim 1 is characterized in that: The adjustable air outlet area assembly (10) comprises an air outlet hood (1001), the air outlet hood (1001) being connected to the installation box (1), the air outlet hood (1001) being located at one end of the guide plate (3), and an air inlet pipe (1002) being connected to the air outlet hood (1001), the other end of the air inlet pipe (1002) being fixedly connected to the output end of the centrifugal fan (5), and a connecting hood (1003) being provided on one side of the air outlet hood (1001).

8. The special rice processing and impurity removal device according to claim 7, characterized in that: A worm wheel (1004) is rotatably mounted inside the air outlet cover (1001), a worm (1005) is rotatably mounted inside the connecting cover (1003), the worm (1005) is meshed with the worm wheel (1004), and a hand wheel (1006) is mounted on the other end of the worm (1005), and air outlet holes (1007) arranged in an array are provided on the worm wheel (1004) and the other end of the air outlet cover (1001).

9. The special rice processing and impurity removal device according to claim 2, characterized in that: The upper surface of the installation box (1) is provided with a feed port (13), the installation box (1) is provided with an air separation debris outlet (14) on the side opposite to the adjustable air outlet area component (10), and a baffle (15) is clamped on one side of the installation box (1) and located below the discharge port (12).

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