Lotus seed grading screening device

Abstract

The utility model provides a lotus seed grading screening device, which relates to the technical field of screening devices and comprises an outer shell, a screening cylinder and a driving mechanism. A plurality of screening cavities are formed in the outer shell; the screening barrel is located in the outer shell and provided with a driving rotating shaft, and the end of the driving rotating shaft penetrates through the outer shell to be connected with the driving mechanism. One end part of the screening cylinder is a feeding port, a plurality of screening nets with meshes gradually increased in size are mounted on the side wall of the screening cylinder, and each screening net is respectively positioned in one screening cavity; and a feeding hopper is also arranged at the end part of the outer shell. The lotus seed grading device has the advantages that lotus seeds to be graded can be continuously input into the screening barrel to rotate through the feeding hopper, the lotus seeds in the screening barrel can move along the screening barrel, and the lotus seeds with different sizes sequentially penetrate through the screening nets with different hole diameters in the process that the lotus seeds in the screening barrel move towards the axial direction of the screening barrel. Therefore, the lotus seeds with different sizes enter different screening cavities respectively, and grading screening of the lotus seeds with different sizes is achieved.

Description

Technical Field

[0001] This utility model relates to the field of screening device technology, specifically a lotus seed grading and screening device. Background Technology

[0002] Lotus seeds, as an important agricultural product, have wide applications in food, medicine, and other fields. The quality of lotus seeds directly affects their market value, and size is one of the key indicators of quality. Furthermore, inconsistent size among lotus seeds can affect subsequent processing (such as shelling and core removal). Therefore, grading and screening lotus seeds before further processing is crucial. Traditionally, lotus seed grading relies mainly on manual screening. This method is not only inefficient but also susceptible to human error, leading to inaccurate grading and failing to meet the needs of large-scale production. There is a lack of automated equipment specifically designed for lotus seed grading on the market. Therefore, there is an urgent need for a device capable of efficiently and accurately grading and screening lotus seeds to improve the automation level of lotus seed grading, enhance product quality, and meet market demands. Utility Model Content

[0003] In view of this, the present invention provides a lotus seed grading and screening device, including an outer shell, a screening cylinder and a driving mechanism;

[0004] The outer shell is provided with at least one partition plate, which divides the internal cavity of the outer shell into multiple screening chambers; each screening chamber is connected to a discharge port at the bottom;

[0005] The screening cylinder is located inside the outer shell. The screening cylinder is equipped with a drive shaft, which is fixedly set relative to the screening cylinder. One end of the drive shaft is rotatably supported at the end of the outer shell, and the other end of the drive shaft passes through the outer shell and is connected to the drive mechanism.

[0006] One end of the screening cylinder is the feed port, and multiple screening screens with increasing mesh size are installed sequentially along the axial direction on the side wall of the screening cylinder. Each screening screen is located in a screening chamber.

[0007] The outer casing is also provided with a feeding funnel at its end, and a feeding pipe is provided at the lower end of the feeding funnel, which extends into the feeding port.

[0008] Furthermore, a connecting sleeve is provided at each end of the screening cylinder, and the drive shaft passes through the two connecting sleeves and is fixedly connected to the connecting sleeves.

[0009] Furthermore, each end of the outer shell is provided with a rotating mounting sleeve, and the two ends of the drive shaft are rotatably supported in the two rotating mounting sleeves respectively, with one end of the drive shaft extending out of the outer shell through a rotating mounting sleeve.

[0010] Furthermore, the two ends of the screening cylinder are the feed port and the bottom end, respectively, and the inner diameter of the screening cylinder gradually increases from the feed port to the bottom end.

[0011] Furthermore, the driving mechanism is a drive motor, which is fixed to the end of the outer casing.

[0012] Furthermore, a support plate is provided at the end of the outer casing, and the drive motor is fixed to the support plate.

[0013] Furthermore, there are three screening chambers and three screening screens, namely a first screening screen, a second screening screen, and a third screening screen. The first screening screen, the second screening screen, and the third screening screen are arranged sequentially from the feed port to the bottom end, and the aperture of the first screening screen, the second screening screen, and the third screening screen increases sequentially.

[0014] Furthermore, the screening mesh is also provided with a barrier mesh, which is located between adjacent screening chambers, and the aperture of the barrier mesh is equal to that of the third screening mesh.

[0015] Furthermore, the feed port of the screening cylinder is provided with a connecting column, and the two ends of the connecting column are respectively connected to the inner wall of the screening cylinder and the connecting sleeve.

[0016] Furthermore, the end of the outer casing is provided with a fixing hole, through which the feed pipe extends into the outer casing.

[0017] The beneficial effects of this lotus seed grading and screening device are as follows: The lotus seed grading and screening device includes an outer shell, a screening cylinder, and a driving mechanism; the outer shell has multiple screening chambers; the screening cylinder is located inside the outer shell and has a driving shaft, the end of which passes through the outer shell and is connected to the driving mechanism; one end of the screening cylinder is a feeding port, and multiple screening meshes with progressively larger mesh sizes are installed on the side wall of the screening cylinder, each screening mesh being located in a screening chamber; the end of the outer shell also has a feeding funnel, and the lower end of the feeding funnel has a feeding pipe extending into the feeding port. The feeding funnel continuously feeds the lotus seeds to be graded into the rotating screening cylinder, and the driving mechanism drives the screening cylinder to rotate. The lotus seeds in the screening cylinder can move along the screening cylinder. During the axial movement of the lotus seeds in the screening cylinder, lotus seeds of different sizes pass through the screening meshes with different mesh sizes in sequence, so that lotus seeds of different sizes enter different screening chambers, thereby achieving the grading and screening of lotus seeds of different sizes. This lotus seed grading and screening device uses a drum-structured screening cylinder to grade and screen lotus seeds by size, and it has the advantages of high screening efficiency and accurate and reliable screening. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the overall structure of a lotus seed grading and screening device according to an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the internal structure of a lotus seed grading and screening device according to an embodiment of the present invention.

[0020] Figure 3 This is a perspective view of the connection structure between the outer shell and the feed funnel of a lotus seed grading and screening device according to an embodiment of this utility model.

[0021] In the above figure: 1-outer shell, 11-partition plate, 12-discharge port, 13-support plate, 14-support leg, 2-feed funnel, 21-feed pipe, 3-screening cylinder, 31-first screening screen, 32-second screening screen, 33-third screening screen, 34-barrier screen, 4-drive shaft, 41-connecting sleeve, 42-connecting column, 5-drive motor, 6-rotating mounting sleeve. Detailed Implementation

[0022] To make the objectives, technical solutions and advantages of this utility model clearer, the embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0023] Please refer to Figures 1 to 3 The present invention relates to a lotus seed grading and screening device, comprising an outer shell 1, a screening cylinder 3, and a driving mechanism.

[0024] The outer shell 1 is a hollow cylindrical structure, with its diameter narrowing at the ends, thus forming a frustum-shaped structure at both ends. The outer shell 1 is laterally supported on the ground by support legs 14. At least one partition plate 11 is provided inside the outer shell 1, dividing the internal cavity into multiple screening chambers. Each screening chamber is connected to a discharge port 12 at its lower part. The number of screening chambers can be determined according to the required number of lotus seed gradings. In this embodiment, there are two partition plates 11 and three screening chambers. The partition plate 11 is a ring-shaped structure with a clearance hole in the middle.

[0025] The screening cylinder 3 is located inside the outer shell 1. The screening cylinder 3 passes through the clearance holes of all the partition plates. The screening cylinder 3 is equipped with a drive shaft 4, which is fixedly set relative to the screening cylinder 3. One end of the drive shaft 4 is rotatably supported at the end of the outer shell 1, and the other end of the drive shaft 4 passes through the outer shell 1 and is connected to the drive mechanism. The drive shaft 4, the screening cylinder 3, and the outer shell 1 are coaxially arranged, which ensures that the screening cylinder 3 can rotate stably.

[0026] One end of the screening cylinder 3 is the feed port, and the other end is the bottom end. Multiple screening screens with increasing mesh size are installed sequentially along the axial direction on the side wall of the screening cylinder 3. Each screening screen is located in a screening chamber. The inner diameter of the screening cylinder 3 gradually increases from the feed port to the bottom end, so that the screening screen has a truncated cone-shaped structure with a fine feed port and a thick bottom end. This allows the lotus seeds in the screening cylinder 3 to move from the feed port to the bottom end during rotation.

[0027] The outer casing 1 is also provided with a feeding funnel 2 at one end, and a feeding pipe 21 is provided at the lower end of the feeding funnel 2, which extends into the feeding port.

[0028] When this lotus seed grading and screening device is in use, the lotus seeds to be graded continuously enter the screening cylinder 3 from the feed hopper 2. The drive mechanism can drive the screening cylinder 3 to rotate, and the lotus seeds in the screening cylinder 3 can move axially along the screening cylinder 3. During the axial movement of the lotus seeds in the screening cylinder 3, lotus seeds of different sizes pass through the screening mesh with different aperture sizes in sequence, so that lotus seeds of different sizes enter different screening chambers respectively, thereby realizing the grading and screening of lotus seeds of different sizes. This lotus seed grading and screening device uses the screening cylinder 3 with a drum structure to grade and screen lotus seeds by size, and it has the advantages of high screening efficiency and accurate and reliable screening.

[0029] In a preferred embodiment, a connecting sleeve 41 is provided at each end of the screening cylinder 3, and the drive shaft 4 passes through the two connecting sleeves 41, and the drive shaft 4 is fixedly connected to the connecting sleeves 41. A connecting post 42 is provided inside the feed port of the screening cylinder 3, wherein the connecting sleeve 41 near the feed port inside the screening cylinder 3 is connected to the screening cylinder 3 through the connecting post 42, that is, the two ends of the connecting post 42 are respectively connected to the inner wall of the screening cylinder 3 and the connecting sleeve.

[0030] In a preferred embodiment, a rotating mounting sleeve 6 is provided at each end of the outer shell 1, and a rotating bearing is provided inside each rotating mounting sleeve 6. The two ends of the drive shaft 4 are rotatably supported in the two rotating mounting sleeves 6 through the rotating bearings, and one end of the drive shaft 4 extends through a rotating mounting sleeve 6 to the outside of the outer shell 1.

[0031] In a preferred embodiment, the driving mechanism is a drive motor 5, which is fixed to the end of the outer casing 1. A support plate 13 is provided at the end of the outer casing 1, and the drive motor 5 is fixed to the support plate 13.

[0032] In a preferred embodiment, there are three screening chambers and three screening screens. The three screening screens are a first screening screen 31, a second screening screen 32, and a third screening screen 33. The first screening screen 31, the second screening screen 32, and the third screening screen 33 are arranged sequentially from the feed port to the bottom of the screening cylinder 3, and the aperture of the first screening screen 31, the second screening screen 32, and the third screening screen 33 increases sequentially. This allows the lotus seeds in the screening cylinder to pass through the small aperture, medium aperture, and large aperture screening screens in sequence. Small-sized lotus seeds pass through the first screening screen 31 and fall out from the discharge port 12 on the left; medium-sized lotus seeds pass through the second screening screen 32 and fall out from the discharge port 12 in the middle; and large-sized lotus seeds pass through the third screening screen 33 and fall out from the discharge port 12 on the right.

[0033] In a preferred embodiment, the screening cylinder 3 is further provided with a barrier net 34, which is located between adjacent screening chambers. The aperture of the barrier net 34 is equal to that of the third screening net 33. The barrier net 34 is used to reduce the speed at which the lotus seeds in the screening cylinder 3 move rapidly to the bottom, ensuring that the lotus seeds in the screening cylinder 3 can be fully screened.

[0034] In a preferred embodiment, the end of the outer shell 1 is further provided with a fixing hole, and the feed pipe 21 extends through the fixing hole into the outer shell 1, and the feed pipe 21 is fixedly connected to the fixing hole.

[0035] In this document, the directional terms such as front, back, top, and bottom are defined based on the location of the components in the accompanying drawings and their relative positions to each other, solely for the purpose of clarity and convenience in expressing the technical solution. It should be understood that the use of these directional terms should not limit the scope of protection claimed in this application.

[0036] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lotus seed grading and sieving device, characterized in that: Includes the outer casing, screening cylinder, and drive mechanism; The outer shell is provided with at least one partition plate, which divides the internal cavity of the outer shell into multiple screening chambers; each screening chamber is connected to a discharge port at its lower part; The screening cylinder is located inside the outer shell. The screening cylinder is equipped with a drive shaft, which is fixedly set relative to the screening cylinder. One end of the drive shaft is rotatably supported at the end of the outer shell, and the other end of the drive shaft passes through the outer shell and is connected to the drive mechanism. One end of the screening cylinder is the feed port, and multiple screening screens with increasing mesh size are installed sequentially along the axial direction on the side wall of the screening cylinder. Each screening screen is located in a screening chamber. The outer casing is also provided with a feeding funnel at its end, and a feeding pipe is provided at the lower end of the feeding funnel, which extends into the feeding port.

2. The lotus seed grading and screening device according to claim 1, characterized in that: The screening cylinder is provided with a connecting sleeve at each end, and the drive shaft passes through the two connecting sleeves and is fixedly connected to the connecting sleeves.

3. The lotus seed grading and screening device according to claim 1, characterized in that: The outer shell has a rotating mounting sleeve at each end, and the two ends of the drive shaft are rotatably supported in the two rotating mounting sleeves. One end of the drive shaft extends out of the outer shell through a rotating mounting sleeve.

4. The lotus seed grading and screening device according to claim 1, characterized in that: The two ends of the screening cylinder are the feed port and the bottom end, respectively, and the inner diameter of the screening cylinder gradually increases from the feed port to the bottom end.

5. The lotus seed grading and screening device according to claim 1, characterized in that: The driving mechanism is a drive motor, which is fixed to the end of the outer casing.

6. A lotus seed grading and screening device according to claim 5, characterized in that, A support plate is provided at the end of the outer shell, and the drive motor is fixed to the support plate.

7. A lotus seed grading and screening device according to claim 4, characterized in that, The number of screening chambers and screening screens are three in total. The three screening screens are a first screening screen, a second screening screen, and a third screening screen. The first screening screen, the second screening screen, and the third screening screen are arranged sequentially from the feed port to the bottom end, and the aperture of the first screening screen, the second screening screen, and the third screening screen increases sequentially.

8. A lotus seed grading and screening device according to claim 7, characterized in that, The screening cylinder is also equipped with a barrier net, which is located between adjacent screening chambers, and the aperture of the barrier net is equal to that of the third screening net.

9. A lotus seed grading and screening device according to claim 2, characterized in that, The feed port of the screening cylinder is provided with a connecting column, and the two ends of the connecting column are respectively connected to the inner wall of the screening cylinder and the connecting sleeve.

10. A lotus seed grading and sieving device according to claim 1, characterized in that, The end of the outer casing is also provided with a fixing hole, through which the feed pipe extends into the outer casing.

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