A rice cleaning and grading vibrating screen

Abstract

The application relates to the rice processing technical field and discloses a rice selecting and grading vibrating screen which comprises a shell, a screening mechanism is fixedly connected to the inner bottom wall of the shell, a storage shell is fixedly connected to the upper surface of the shell, two first bearings are inlaid in the inner side wall of the storage shell, the inner rings of the two first bearings are fixedly connected together and have a feeding cylinder, a servo motor is fixedly connected to the front face of the storage shell, the output end of the servo motor is fixedly connected to the front face of the feeding cylinder, the feeding cylinder is driven to rotate by the servo motor, the feeding holes on the surface of the feeding cylinder are used to realize the quantitative falling of rice, the material is prevented from being concentrated and accumulated, meanwhile, the feeding cylinder drives the second gear to rotate, thereby driving the two first gears and the spiral blade rods which are meshed with each other to rotate in the reverse direction, the rice in the storage shell can be stirred and pushed, the rice is uniformly distributed at the bottom of the storage shell, and the stability of feeding and the continuity of screening are improved.

Description

Technical Field

[0001] This application relates to the field of rice processing technology, specifically a vibrating screen for rice selection and grading. Background Technology

[0002] As one of the core staple foods in people's daily diet, the quality of rice processing directly affects its taste and market value. In the entire process of rice processing from paddy hulling to finished product packaging, selection and grading is one of the key links. This link requires the use of specific equipment to separate broken rice and rice grains of different sizes to meet the differentiated needs of different consumption scenarios for rice quality.

[0003] Currently, rice tends to accumulate in certain areas after being fed into a screening machine, resulting in uneven feeding and affecting screening efficiency. Furthermore, when rice falls to the same position on the screen, it not only easily causes screen blockage but also leads to a decrease in screening accuracy due to unbalanced material distribution, making it impossible to achieve precise grading of rice particles. Therefore, those skilled in the art have provided a vibrating screen for rice selection and grading to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a vibrating screen for rice selection and grading, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A vibrating screen for rice selection and grading includes an outer shell. A screening mechanism is fixedly connected to the inner bottom wall of the outer shell. A storage shell is fixedly connected to the upper surface of the outer shell. Two first bearings are embedded in the inner side wall of the storage shell. A feeding cylinder is fixedly connected to the inner rings of the two first bearings. A servo motor is fixedly connected to the front of the storage shell. The output end of the servo motor is fixedly connected to the front of the feeding cylinder. Multiple feeding holes are opened on the outer surface of the feeding cylinder. Four second bearings are embedded in the inner side wall of the storage shell. A spiral blade rod is fixedly connected to the inner rings of every two second bearings. A first gear is fixedly connected to the back of each of the two spiral blade rods. The two first gears mesh with each other. A second gear is fixedly connected to the back of the feeding cylinder. The second gear meshes with one of the first gears.

[0007] As a further improvement of this utility model: the screening mechanism includes four supporting slide cylinders, and the inner sidewall of each supporting slide cylinder is slidably connected to a support frame.

[0008] As a further improvement of this utility model: the bottom surface of the support frame and the inner bottom wall of each support slide are fixedly connected to four elastic elements, and a vibration motor is fixedly connected to the upper surface of the support frame.

[0009] As a further embodiment of this utility model: a first screen is fixedly connected to the outer surface of the support frame, and a second screen is fixedly connected to the outer surface of the support frame.

[0010] As a further embodiment of this utility model: a first guide plate is fixedly connected to the outer surface of the support frame, a plurality of diverter plates are fixedly connected to the upper surface of the first guide plate, and a second guide plate is fixedly connected to the outer surface of the support frame.

[0011] As a further improvement of this utility model: a protective shell is fixedly connected to the back of the storage shell, and an observation plate is fixedly connected to the right side of the storage shell.

[0012] As a further improvement of this utility model: the front of the outer shell is rotatably connected to a maintenance door via a hinge, and the bottom of the outer shell is fixedly connected to multiple support feet.

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

[0014] This rice selection and grading vibrating screen uses a servo motor to drive the feeding cylinder to rotate. The feeding holes on the surface of the feeding cylinder allow the rice to fall quantitatively, avoiding material accumulation. At the same time, the feeding cylinder drives the second gear to rotate, which in turn drives the two meshing first gears and the spiral blade rod to rotate in opposite directions. This can stir and push the rice in the storage shell, so that the rice is evenly distributed at the bottom of the storage shell. This solves the problem of screen blockage caused by uneven feeding and improves the stability of feeding and the continuity of screening. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of a vibrating screen for rice selection and grading.

[0016] Figure 2 A schematic diagram of the cross-sectional structure of the supporting slide in a vibrating screen for rice selection and grading;

[0017] Figure 3 A top-section diagram of the storage shell in a vibrating screen for rice selection and grading;

[0018] Figure 4 A side cross-sectional diagram of the storage shell in a vibrating screen for rice selection and grading.

[0019] Figure 5 This is a schematic diagram of the front section of the feeding cylinder in a vibrating screen for rice selection and grading.

[0020] In the diagram: 1. Outer shell; 2. Screening mechanism; 201. Supporting slide; 202. Support frame; 203. Elastic element; 204. Vibrating motor; 205. First screen; 206. First guide plate; 207. Diverting plate; 208. Second screen; 209. Second guide plate; 3. Storage shell; 4. First bearing; 5. Feeding cylinder; 6. Servo motor; 7. Feeding hole; 8. Second bearing; 9. Spiral blade rod; 10. Second gear; 11. First gear; 12. Protective shell; 13. Observation plate; 14. Maintenance door; 15. Support foot. Detailed Implementation

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figures 1-5 In this embodiment of the present invention, a rice selection and grading vibrating screen includes a shell 1. A screening mechanism 2 is fixedly connected to the inner bottom wall of the shell 1. A storage shell 3 is fixedly connected to the upper surface of the shell 1. Two first bearings 4 are embedded in the inner side wall of the storage shell 3. A feeding cylinder 5 is fixedly connected to the inner rings of the two first bearings 4. A servo motor 6 is fixedly connected to the front of the storage shell 3. The output end of the servo motor 6 is fixedly connected to the front of the feeding cylinder 5. Multiple feeding holes 7 are opened on the outer surface of the feeding cylinder 5. Four second bearings 8 are embedded in the inner side wall of the storage shell 3. A spiral is fixedly connected to the inner ring of every two second bearings 8. The back of the blade rod 9 and the two spiral blade rods 9 are fixedly connected to the first gear 11, which mesh with each other. The back of the feeding cylinder 5 is fixedly connected to the second gear 10, which meshes with one of the first gears 11. The thickness of one of the first gears 11 is greater than that of the other. The feeding cylinder 5 is driven to rotate by the servo motor 6, which works with the feeding hole 7 to prevent rice from accumulating on the screen. The second gear 10 drives the first gear 11 and the spiral blade rod 9 to rotate, and the spiral blade rod 9 drives the rice to flow, so that the rice is evenly distributed in the storage shell 3.

[0023] The screening mechanism 2 includes four supporting slide cylinders 201. The inner sidewall of each supporting slide cylinder 201 is slidably connected to a support frame 202. The bottom surface of the support frame 202 and the inner bottom wall of each supporting slide cylinder 201 are fixedly connected to four elastic elements 203. The upper surface of the support frame 202 is fixedly connected to a vibration motor 204. The outer surface of the support frame 202 is fixedly connected to a first screen 205 and a second screen 208. The outer surface of the support frame 202 is fixedly connected to a first guide plate 206. The upper surface of the first guide plate 206 is fixedly connected to multiple diverting plates 207. The outer surface of the support frame 202 is fixedly connected to a second guide plate 209. By sliding the support frame 202 inside the supporting slide cylinder 201 and cooperating with the elastic elements 203, a buffering effect can be achieved, reducing the impact of vibration on the outer shell 1.

[0024] A protective shell 12 is fixedly connected to the back of the storage shell 3, and an observation plate 13 is fixedly connected to the right side of the storage shell 3. A maintenance door 14 is rotatably connected to the front of the outer shell 1 via a hinge. Multiple support feet 15 are fixedly connected to the bottom of the outer shell 1. Each support foot 15 has a threaded hole on its upper surface, which can be used to fix the device with bolts to increase stability. The maintenance door 14 is equipped with a motor controller, which can adjust the speed of the servo motor 6, thereby controlling the flow rate.

[0025] The working principle of this utility model is as follows: When using this device, rice is put into the storage shell 3. The servo motor 6 drives the feeding cylinder 5 to rotate. The feeding holes 7 on the surface of the feeding cylinder 5 receive and drop rice quantitatively as the cylinder rotates. At the same time, the second gear 10 drives the two first gears 11 to rotate, which can drive the two spiral blade rods 9 to rotate in opposite directions, stirring and pushing the rice in the storage shell 3, so that the rice is evenly distributed at the bottom of the storage shell 3. The protective shell 12 on the back of the storage shell 3 protects the gear components. The observation plate 13 on the right side can observe the internal situation. The vibration motor 204 drives the support frame 202 to vibrate. The elastic element 203 can buffer the impact. The rice is screened by the vibration of the first screen 205 and the second screen 208. The first guide plate 206 and the diversion plate 207 guide the rice screened by the first screen 205 into the second screen 208. The rice flows out from the end of the first screen 205, the end of the second screen 208 and the end of the second guide plate 209, respectively, realizing multi-stage screening of rice.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vibrating screen for rice selection and grading, comprising a shell (1), characterized in that, A screening mechanism (2) is fixedly connected to the inner bottom wall of the outer shell (1). A storage shell (3) is fixedly connected to the upper surface of the outer shell (1). Two first bearings (4) are embedded in the inner side wall of the storage shell (3). The inner rings of the two first bearings (4) are fixedly connected to a feeding cylinder (5). A servo motor (6) is fixedly connected to the front of the storage shell (3). The output end of the servo motor (6) is fixedly connected to the front of the feeding cylinder (5). Multiple feeding holes (7) are opened on the outer surface of the feeding cylinder (5). Four second bearings (8) are embedded in the inner side wall of the storage shell (3). A spiral blade rod (9) is fixedly connected to the inner ring of each pair of second bearings (8). A first gear (11) is fixedly connected to the back of each pair of spiral blade rods (9). The two first gears (11) mesh with each other. A second gear (10) is fixedly connected to the back of the feeding cylinder (5). The second gear (10) meshes with one of the first gears (11).

2. The rice selection and grading vibrating screen according to claim 1, characterized in that, The screening mechanism (2) includes four support slides (201), and the inner sidewall of each support slide (201) is slidably connected to a support frame (202).

3. The rice selection and grading vibrating screen according to claim 2, characterized in that, The bottom surface of the support frame (202) and the inner bottom wall of each support slide (201) are fixedly connected to four elastic elements (203), and the upper surface of the support frame (202) is fixedly connected to a vibration motor (204).

4. The rice selection and grading vibrating screen according to claim 2, characterized in that, The outer surface of the support frame (202) is fixedly connected to a first screen (205), and the outer surface of the support frame (202) is fixedly connected to a second screen (208).

5. A vibrating screen for rice selection and grading according to claim 2, characterized in that, The outer surface of the support frame (202) is fixedly connected to a first guide plate (206), the upper surface of the first guide plate (206) is fixedly connected to a plurality of diverter plates (207), and the outer surface of the support frame (202) is fixedly connected to a second guide plate (209).

6. The rice selection and grading vibrating screen according to claim 1, characterized in that, A protective shell (12) is fixedly connected to the back of the storage shell (3), and an observation plate (13) is fixedly connected to the right side of the storage shell (3).

7. A vibrating screen for rice selection and grading according to claim 1, characterized in that, The front of the outer shell (1) is connected to a maintenance door (14) via a hinge, and the bottom of the outer shell (1) is fixedly connected to multiple support feet (15).

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