A multi-stage rice kernel sorting device

Abstract

The utility model relates to the technical field of rice kernel sorting, specifically a rice kernel multistage sorting device, including sorting box, sorting cylinder, installation cylinder, feed hopper, sorting board and drive mechanism, the inside of sorting box is provided with the partition, the partition divides sorting box into equipment cavity and sorting chamber, sorting cylinder rotationally sets up in the sorting chamber, one end of sorting cylinder penetrates the partition and is connected with the partition rotationally, one end of sorting cylinder penetrates sorting box and extends to the outside of sorting box, installation cylinder rotationally sets up in the equipment cavity, and installation cylinder is linked with sorting cylinder, feed hopper sets up at one side of sorting box, sorting board movably sets up in sorting box, and drive mechanism sorting cylinder and sorting board move, the utility model discloses through setting up the rotating sorting cylinder and vibrating sorting board, has realized the continuous sorting and automatic discharge of rice kernel, avoided the problem that traditional screen needs frequent shutdown cleaning because of material accumulation, significantly improved the sorting efficiency and automation level.

Description

Technical Field

[0001] This utility model relates to the field of rice grain sorting technology, specifically to a multi-stage rice grain sorting device. Background Technology

[0002] The production process of rice processing enterprises includes raw material acquisition, screening, destoning, magnetic separation, rice hulling, paddy separation, rice milling, color sorting, polishing, and finished product packaging. After the above multiple processing steps, the rice contains whole grains, incomplete grains, and impurities. This rice is not conducive to rice packaging and sales, so it is required to grade and screen the rice.

[0003] Chinese patent CN218531741U discloses a rice grading and sorting machine, including a box body. A support plate is fitted inside the box body. Support rods are movably fitted on the left and right sides of the middle of the box body. The right end of the left support rod is fixedly connected to the left side wall of the support plate. The device uses a cam to rotate to drive the screening box to move left and right, generating vibration. This causes the rice grains poured into the screening box to pass through the upper screen and fall onto the lower screen. The rice grains are graded into three groups of different sizes by the three screens, thereby achieving the grading and screening of white rice, improving screening efficiency, and ensuring the quality of rice. A second motor drives the fan blades to rotate, creating negative pressure in the dust collection mechanism. The negative pressure generates suction, and the dust splashed when white rice is poured from the feed hopper into the screening box is sucked in by the dust collection head under the action of negative pressure suction, and then enters the dust collection box through the connecting pipe for collection. This avoids dust splashing inside the box and causing the box to become full of dust.

[0004] However, the above technical solutions have the following shortcomings: Although the white rice grading and sorting machine with a three-screen structure can achieve preliminary grading and screening of rice grains, this structure can only allow the smallest particles to pass directly through the screens and be discharged from the screening box. Medium and large particles that meet different grading standards, as well as some residual impurities, will continue to accumulate on the corresponding screen surfaces. Due to the lack of continuous discharge and self-cleaning design, the entire sorting device needs to be shut down periodically, and the materials on each screen layer need to be cleaned and separated manually. This not only increases the labor intensity of the operators but also causes frequent interruptions in the sorting operation. Frequent start-ups and shutdowns not only extend the overall sorting cycle but may also affect the service life of mechanical parts due to the impact of equipment start-ups and shutdowns. At the same time, it reduces the material processing capacity per unit time, which seriously restricts the continuity and efficiency of rice grain sorting and makes it difficult to meet the large-scale and automated production needs of rice processing enterprises. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a multi-stage rice grain sorting device.

[0006] The technical solution of this utility model: a multi-stage rice grain sorting device, comprising: The sorting box has an internal partition plate that divides the sorting box into an equipment chamber and a sorting chamber. The sorting cylinder is rotatably set inside the sorting chamber. One end of the sorting cylinder passes through the partition plate and is rotatably connected to the partition plate. The other end of the sorting cylinder passes through the sorting box and extends to the outside of the sorting box. The mounting cylinder is rotatably installed inside the equipment cavity. One end of the mounting cylinder is fixedly connected to the sorting cylinder, and the mounting cylinder is connected to the sorting cylinder. The feed hopper is located on one side of the sorting box, with one end of the feed hopper passing through the sorting box and the mounting cylinder and extending into the mounting cylinder; The sorting plate is movably installed inside the sorting box. One end of the sorting plate is rotatably installed inside the sorting box, and the other end of the sorting plate passes through the sorting box and extends to the outside of the sorting box. The drive mechanism is located inside the equipment cavity. One end of the drive mechanism is connected to the mounting cylinder to drive the mounting cylinder and the sorting cylinder to rotate together, and the other end of the drive mechanism is connected to the sorting plate to drive the sorting plate to vibrate.

[0007] Preferably, a guide plate is provided inside the sorting box, and the guide plate is positioned between the sorting cylinder and the sorting plate, with one end of the guide plate fixedly connected to the partition plate.

[0008] Preferably, the drive mechanism includes a drive motor, a drive rod, a drive assembly, and a transmission assembly; the drive motor is disposed outside the sorting box and fixedly connected to the sorting box, the drive rod is rotatably disposed inside the equipment cavity and connected to the output end of the drive motor, the drive assembly is disposed inside the equipment cavity, one end of the drive assembly is connected to the drive rod, and the other end of the drive assembly is connected to the mounting cylinder, and the transmission assembly is disposed inside the equipment cavity, one end of the transmission assembly is connected to the drive rod, and the other end of the transmission assembly is connected to the sorting plate.

[0009] Preferably, the drive assembly includes a drive gear and a drive gear ring; the drive gear is disposed in the equipment cavity and fixedly connected to the drive rod, the drive gear ring is disposed in the equipment cavity and fixedly connected to the mounting cylinder, and the drive gear meshes with the drive gear ring.

[0010] Preferably, the transmission assembly includes a crankshaft, a rocker arm, a transmission rod, a movable frame, and a connecting rod; the crankshaft is disposed inside the equipment cavity and fixedly connected to the drive rod, one end of the rocker arm is rotatably connected to the crankshaft, the transmission rod passes through the partition plate and is slidably connected to the partition plate, the top end of the transmission rod is rotatably connected to the rocker arm, the movable frame is fixedly connected to the bottom end of the transmission rod, the connecting rod is fixedly connected to the sorting plate, and the connecting rod passes through the movable frame and is movably connected to the movable frame.

[0011] Preferably, the bottom of the sorting box is connected to a feeding hopper, and the four corners of the feeding hopper are fixedly connected to support legs.

[0012] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects: This invention achieves continuous sorting and automatic discharge of rice grains by setting up a rotating sorting cylinder and a vibrating sorting plate. It avoids the problem of frequent machine shutdowns for cleaning due to material accumulation in traditional screens, significantly improving sorting efficiency and automation level. The drive mechanism drives the sorting cylinder to rotate and the sorting plate to vibrate, preventing material accumulation, reducing the labor intensity of operators, meeting the large-scale, high-efficiency, and automated production needs of rice processing enterprises, and effectively improving the overall operating efficiency and economic benefits of the production line. Attached Figure Description

[0013] Figure 1 This is a perspective view of one embodiment of the present invention; Figure 2 This is a cross-sectional view of one embodiment of the present invention; Figure 3 This is a perspective view of the drive mechanism in one embodiment of the present invention; Figure 4 This is a perspective view of a sorting plate in one embodiment of the present invention; Figure 5 This is a perspective view of the partition plate in one embodiment of the present invention; Figure 6 This is a perspective view of the feed hopper in one embodiment of the present invention; Reference numerals in the attached drawings: 1. Sorting box; 2. Separator plate; 3. Sorting cylinder; 41. Drive motor; 42. Drive rod; 431. Drive gear; 432. Drive gear ring; 441. Crankshaft; 442. Rocker arm; 443. Transmission rod; 444. Movable frame; 445. Connecting rod; 5. Mounting cylinder; 6. Feed hopper; 7. Sorting plate; 8. Guide plate; 9. Discharge hopper; 10. Support leg. Detailed Implementation

[0014] Example 1; as Figure 1-6As shown, this utility model proposes a multi-stage rice grain sorting device, including a sorting box 1, a sorting cylinder 3, a mounting cylinder 5, a feeding hopper 6, a sorting plate 7, and a driving mechanism. The sorting box 1 is internally equipped with a partition plate 2, which divides the sorting box 1 into an equipment chamber and a sorting chamber. A feeding hopper 9 is connected to the bottom of the sorting box 1, and support legs 10 are fixedly connected to each of the four corners of the feeding hopper 9. The sorting cylinder 3 is rotatably disposed within the sorting chamber. One end of the sorting cylinder 3 passes through the partition plate 2 and is rotatably connected to it. Another end of the sorting cylinder 3 passes through the sorting box 1 and extends to the outside of the sorting box 1. The sorting cylinder 3 is trumpet-shaped. The mounting cylinder 5 is rotatably disposed within the equipment chamber. One end of the mounting cylinder 5 is fixedly connected to the sorting cylinder 3, and the mounting cylinder 5 communicates with the sorting cylinder 3. The feeding hopper 6 is disposed on one side of the sorting box 1. One end of the feed hopper 6 passes through the sorting box 1 and the mounting cylinder 5 and extends into the mounting cylinder 5; the sorting plate 7 is movably disposed in the sorting box 1, the sorting hole of the sorting cylinder 3 is larger than the sorting hole of the sorting plate 7, the size of the rice grains is between the sorting hole of the sorting cylinder 3 and the sorting hole of the sorting plate 7, one end of the sorting plate 7 is rotatably disposed in the sorting box 1, and the other end of the sorting plate 7 passes through the sorting box 1 and extends to the outside of the sorting box 1, a guide plate 8 is disposed in the sorting box 1, the guide plate 8 is disposed between the sorting cylinder 3 and the sorting plate 7, and one end of the guide plate 8 is fixedly connected to the partition plate 2; the drive mechanism is disposed in the equipment cavity, one end of the drive mechanism is connected to the mounting cylinder 5 to drive the mounting cylinder 5 and the sorting cylinder 3 to rotate together, and the other end of the drive mechanism is connected to the sorting plate 7 to drive the sorting plate 7 to vibrate.

[0015] Example 2; as Figure 2-4As shown, this utility model proposes a multi-stage rice grain sorting device. Compared with Embodiment 1, this embodiment also specifically discloses the structure of the driving mechanism. The driving mechanism includes a driving motor 41, a driving rod 42, a driving assembly, and a transmission assembly. The driving motor 41 is disposed outside the sorting box 1 and fixedly connected to the sorting box 1. The driving motor 41 is a variable frequency motor and is connected to the control system and power supply through wires. The driving rod 42 is rotatably disposed inside the equipment cavity and connected to the output end of the driving motor 41. The driving assembly is disposed inside the equipment cavity. One end of the driving assembly is connected to the driving rod 42, and the other end of the driving assembly is connected to the mounting cylinder 5. The transmission assembly is disposed inside the equipment cavity. One end of the transmission assembly is connected to the driving rod 42, and the other end of the transmission assembly is connected to the sorting plate 7. The driving assembly includes a driving gear 431 and a driving gear... Ring 432; drive gear 431 is set inside the equipment cavity and fixedly connected to drive rod 42, drive gear ring 432 is set inside the equipment cavity and fixedly connected to mounting cylinder 5, drive gear 431 meshes with drive gear ring 432; transmission assembly includes crankshaft 441, rocker arm 442, transmission rod 443, movable frame 444 and connecting rod 445; crankshaft 441 is set inside the equipment cavity and fixedly connected to drive rod 42, one end of rocker arm 442 is rotatably connected to crankshaft 441, transmission rod 443 passes through partition plate 2 and is slidably connected to partition plate 2, top end of transmission rod 443 is rotatably connected to rocker arm 442, movable frame 444 is fixedly connected to bottom end of transmission rod 443, connecting rod 445 is fixedly connected to sorting plate 7, connecting rod 445 passes through movable frame 444 and is movably connected to movable frame 444.

[0016] Turn on the drive motor 41 via the control panel. The drive motor 41 drives the crankshaft 441 and drive gear 431 to rotate together via the drive rod 42. The rotation of the drive gear 431 drives the drive gear ring 432 and the mounting cylinder 5 to rotate together via meshing. The rotation of the mounting cylinder 5 drives the sorting cylinder 3 to rotate together. The rotation of the crankshaft 441 drives the transmission rod 443 and the movable frame 444 to reciprocate in the vertical direction via the rocker arm 442. The reciprocating motion of the movable frame 444 drives the sorting plate 7 to swing via the connecting rod 445. The rice grains to be sorted are fed into the sorting cylinder 3 through the feed hopper 6. Larger particles are discharged from the sorting box 1 through the outlet of the sorting cylinder 3. Rice grains and smaller particles pass through the sorting holes of the sorting plate 7 and fall onto the sorting plate 7 under the action of the guide plate 8. Smaller particles pass through the sorting plate 7 and are discharged from the sorting box 1 through the discharge hopper 9. Rice grains of normal size are discharged from the sorting box 1 under the action of the sorting plate 7.

[0017] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A multi-stage rice grain sorting device, characterized in that, include: The sorting box (1) has a partition plate (2) inside, which divides the sorting box (1) into a device cavity and a sorting cavity; The sorting cylinder (3) is rotatably set inside the sorting chamber. One end of the sorting cylinder (3) passes through the partition plate (2) and is rotatably connected to the partition plate (2). One end of the sorting cylinder (3) passes through the sorting box (1) and extends to the outside of the sorting box (1). The mounting cylinder (5) is rotatably set inside the equipment cavity. One end of the mounting cylinder (5) is fixedly connected to the sorting cylinder (3), and the mounting cylinder (5) is connected to the sorting cylinder (3). The feed hopper (6) is located on one side of the sorting box (1), and one end of the feed hopper (6) passes through the sorting box (1) and the mounting cylinder (5) and extends into the mounting cylinder (5); The sorting plate (7) is movably disposed inside the sorting box (1). One end of the sorting plate (7) is rotatably disposed inside the sorting box (1), and the other end of the sorting plate (7) passes through the sorting box (1) and extends to the outside of the sorting box (1). The drive mechanism is located inside the equipment cavity. One end of the drive mechanism is connected to the mounting cylinder (5) to drive the mounting cylinder (5) and the sorting cylinder (3) to rotate together. The other end of the drive mechanism is connected to the sorting plate (7) to drive the sorting plate (7) to vibrate.

2. The rice grain multi-stage sorting device according to claim 1, characterized in that, The sorting box (1) is equipped with a guide plate (8), which is located between the sorting cylinder (3) and the sorting plate (7). One end of the guide plate (8) is fixedly connected to the partition plate (2).

3. The rice grain multi-stage sorting device according to claim 1, characterized in that, The drive mechanism includes a drive motor (41), a drive rod (42), a drive assembly, and a transmission assembly. The drive motor (41) is located outside the sorting box (1) and is fixedly connected to the sorting box (1). The drive rod (42) is rotatably located inside the equipment cavity and is connected to the output end of the drive motor (41). The drive assembly is located inside the equipment cavity. One end of the drive assembly is connected to the drive rod (42), and the other end of the drive assembly is connected to the mounting cylinder (5). The transmission assembly is located inside the equipment cavity. One end of the transmission assembly is connected to the drive rod (42), and the other end of the transmission assembly is connected to the sorting plate (7).

4. The rice grain multi-stage sorting device according to claim 3, characterized in that, The drive assembly includes a drive gear (431) and a drive gear ring (432); the drive gear (431) is located inside the equipment cavity and is fixedly connected to the drive rod (42), the drive gear ring (432) is located inside the equipment cavity and is fixedly connected to the mounting cylinder (5), and the drive gear (431) meshes with the drive gear ring (432).

5. The rice grain multi-stage sorting device according to claim 3, characterized in that, The transmission assembly includes a crankshaft (441), a rocker arm (442), a transmission rod (443), a movable frame (444), and a connecting rod (445). The crankshaft (441) is located inside the equipment cavity and is fixedly connected to the drive rod (42). One end of the rocker arm (442) is rotatably connected to the crankshaft (441). The transmission rod (443) passes through the partition plate (2) and is slidably connected to the partition plate (2). The top end of the transmission rod (443) is rotatably connected to the rocker arm (442). The movable frame (444) is fixedly connected to the bottom end of the transmission rod (443). The connecting rod (445) is fixedly connected to the sorting plate (7). The connecting rod (445) passes through the movable frame (444) and is movably connected to the movable frame (444).

6. The rice grain multi-stage sorting device according to claim 1, characterized in that, The bottom of the sorting box (1) is connected to the feeding hopper (9), and the four corners of the feeding hopper (9) are fixedly connected to the support legs (10).

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