Multi-frequency vibration cleaning screen for rice processing

Abstract

The utility model discloses a rice processing is with multiband vibration cleaning screen relates to rice processing technical field, including support frame, the outside fixed connection of support frame has the mounting bracket, and the top side mounting of mounting bracket has the pre -screening mechanism, and the pre -screening mechanism includes screening drum cylinder, in the utility model, through screening drum cylinder to the big lumpiness of rice in the impurity carries out the preliminary screening, second vibration motor vibration, to the granular material and carries out the screening, first vibration motor vibration, to the material and carries out secondary screening, and the vibration frequency of second vibration motor and first vibration motor is not identical, can through the screening drum cylinder work first remove big impurity, makes subsequent vibration screen load reduction, and second vibration motor low -frequency screening utilizes material inertia force and realizes the particle according to the density layering, and first vibration motor high -frequency screening makes bran fast and penetrates the screen, avoids the card in the screen hole, and double -frequency vibration screening can reduce the mutual friction breakage of rice grain.

Description

Technical Field

[0001] This utility model relates to the field of rice processing technology, and in particular to a multi-frequency vibrating cleaning screen for rice processing. Background Technology

[0002] Rice, also known as paddy rice, is a food made from paddy rice through processes such as cleaning, hulling, milling, and finishing. Rice is a staple food for people in most parts of China. During the rice processing, impurities inside the rice need to be sieved and removed.

[0003] For example, CN217094385U discloses a cleaning structure for a vibrating screen used in rice processing, including a mounting plate. A screen mesh is provided on the inner side of the mounting plate, and a protective barrier is provided on the screen mesh. An insertion groove is provided on the protective barrier, and a through discharge hole is provided on one side of the protective barrier opposite to the insertion groove. A lifting plate is slidably installed in the insertion groove.

[0004] In existing technologies, when rice is being screened, large impurities, broken rice, and bran powder are simultaneously processed. Large impurities will mix with rice grains and easily clog the screen surface. At the same time, the single vibration mode during screening is difficult to separate impurities of different particle sizes. When faced with broken rice and bran powder with similar particle sizes, it is impossible to remove them effectively, resulting in a high impurity rate in the finished product after screening. Utility Model Content

[0005] The purpose of this invention is to solve the problem that the single vibration mode in the existing technology is difficult to separate impurities of different particle sizes, resulting in a high impurity rate in the finished product after screening. Therefore, a multi-frequency vibration cleaning screen for rice processing is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a multi-band vibrating cleaning screen for rice processing, comprising a support frame, an mounting frame fixedly connected to the outer side of the support frame, a pre-screening mechanism mounted on the top side of the mounting frame, the pre-screening mechanism comprising a screening drum, the outer side of the screening drum being fixedly connected to the mounting frame, a second vibrating screen mechanism disposed below the screening drum, the second vibrating screen mechanism comprising a second inclined frame, a second vibrating motor mounted on one side of the second inclined frame, a fixing plate fixedly connected to the inner side of the second inclined frame, a second screen fixedly connected to one side of the fixing plate, a first vibrating screen mechanism disposed below the second inclined frame, the first vibrating screen mechanism comprising a mounting plate, one end of the mounting plate being fixedly connected to one side of the support frame, the other end of the mounting plate being fixedly connected to the first inclined frame, a first screen fixedly connected to the middle of the first inclined frame, and a first vibrating motor mounted on the bottom side of the first inclined frame.

[0007] Preferably, a collection frame is provided below the first inclined frame, and the outer side of the collection frame is fixedly connected to the support frame.

[0008] Preferably, a buffer assembly is fixedly connected to the outer side of the second inclined frame, and a connecting column is installed at one end of the buffer assembly. One end of the connecting column is fixedly connected to one side of the support frame.

[0009] Preferably, a guide plate is fixedly connected to the open end of the second inclined frame.

[0010] Preferably, the feed end of the screening drum is fixedly connected to a discharge hopper, and the outer side of the discharge hopper is fixedly connected to the top side of the mounting frame.

[0011] Preferably, a conveying plate is fixedly connected to the discharge end of the screening drum, and the outer side of the conveying plate overlaps with the opening end of the second inclined frame.

[0012] Preferably, a mounting base is fixedly connected to one side of the mounting frame, and a drive motor is fixedly connected to one side of the mounting base. A rotating rod is fixedly connected to the output end of the drive motor through the mounting base. The rotating rod is located inside the screening drum, and anti-clogging blades are fixedly connected to the outside of the rotating rod. The outer side of the anti-clogging blades overlaps with the inner wall of the screening drum.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, a screening drum is used to initially screen large impurities in rice. A second vibrating motor vibrates to screen large particles, and a first vibrating motor vibrates to perform secondary screening. The vibration frequencies of the second and first vibrating motors are different, which allows the screening drum to remove large impurities first, reducing the load on the subsequent vibrating screen. The second vibrating motor performs low-frequency screening, using the inertial force of the material to achieve particle stratification according to density. The first vibrating motor performs high-frequency screening, allowing bran powder to pass through the screen quickly and avoiding it from getting stuck in the screen holes. The dual-frequency vibrating screening can reduce the friction and damage between rice grains.

[0015] 2. In this utility model, the rice raw material inside the hopper enters the interior of the screening drum through the connected screening drum. The drive motor drives the rotating rod to rotate, and the anti-blocking blades move accordingly. The outer surface of the anti-blocking blades fits against the inner wall of the screening drum. During the rotation of the anti-blocking blades, the rice inside the screening drum can be stirred. Large stones and rice husk impurities in the rice are guided out by the inclined screening drum and the conveying plate, while other materials are filtered out through the filter holes opened on the side wall of the screening drum to prevent clogging. Attached Figure Description

[0016] Figure 1 This utility model presents a first three-dimensional structural schematic diagram of a multi-band vibrating cleaning screen for rice processing;

[0017] Figure 2 This utility model provides a second three-dimensional structural schematic diagram of a multi-band vibrating cleaning screen for rice processing;

[0018] Figure 3 This utility model provides a schematic diagram of the first disassembly structure of the first and second vibrating screen mechanisms in a multi-frequency vibrating cleaning screen for rice processing;

[0019] Figure 4 This utility model provides a second disassembly diagram of the first and second vibrating screen mechanisms in a multi-frequency vibrating cleaning screen for rice processing;

[0020] Figure 5 This utility model provides a schematic diagram of the disassembly structure of the pre-screening mechanism in a multi-frequency vibrating cleaning screen for rice processing.

[0021] Legend: 1. Support frame; 2. Collection frame; 3. Mounting frame; 4. First vibrating screen mechanism; 41. Mounting plate; 42. First inclined frame; 43. First vibrating motor; 44. First screen; 5. Second vibrating screen mechanism; 51. Second inclined frame; 52. Fixed plate; 53. Second screen; 54. Guide plate; 55. Buffer assembly; 56. Connecting column; 57. Second vibrating motor; 6. Pre-screening mechanism; 61. Discharge hopper; 62. Screening drum; 63. Rotating rod; 64. Anti-clogging blade; 65. Drive motor; 66. Conveying plate; 67. Mounting base. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1: As Figures 1-5As shown, this utility model provides a multi-band vibrating cleaning screen for rice processing, including a support frame 1. A mounting frame 3 is fixedly connected to the outer side of the support frame 1. A pre-screening mechanism 6 is mounted on the top side of the mounting frame 3. The pre-screening mechanism 6 includes a screening roller 62, which is fixedly connected to the outer side of the mounting frame 3. A second vibrating screen mechanism 5 is arranged below the screening roller 62. The second vibrating screen mechanism 5 includes a second inclined frame 51. A second vibrating motor 57 is mounted on one side of the second inclined frame 51. A fixing plate 52 is fixedly connected to the inner side of the second inclined frame 51. A second screen 53 is fixedly connected to one side of the fixing plate 52. A first vibrating screen mechanism 4 is arranged below the second inclined frame 51. The first vibrating screen mechanism 4 includes a mounting plate 41, one end of which is fixedly connected to one side of the support frame 1, and the other end of which is fixedly connected to a first inclined frame 42. A first screen 44 is fixedly connected to the middle of the first inclined frame 42, and a first vibrating motor 43 is installed on the bottom side of the first inclined frame 42. A collection frame 2 is provided below the first inclined frame 42, and the outer side of the collection frame 2 is fixedly connected to the support frame 1. A buffer assembly 55 is fixedly connected to the outer side of the second inclined frame 51. A connecting column 56 is installed at one end of the buffer assembly 55, and one end of the connecting column 56 is fixedly connected to one side of the support frame 1. A guide plate 54 is fixedly connected to the open end of the second inclined frame 51.

[0025] Large impurities in the rice are initially screened by the screening drum 62, and then the material falls onto the fixed plate 52. The fixed plate 52 and the second screen 53 are inclined. The second vibrating motor 57 vibrates to screen the large particles. The large particles are guided into the collection area by the guide plate 54, and the remaining material passes through the screen and falls onto the first inclined frame 42. The material is then screened a second time by the first vibrating motor 43 through the first screen 44. Broken rice is collected after being guided by the inclined first frame 42, and bran powder falls into the collection frame 2 and is collected. The vibration frequencies of the second vibrating motor 57 and the first vibrating motor 43 are different. The screening drum 62 removes large impurities first, reducing the load on the subsequent vibrating screen. The second vibrating motor 57 performs low-frequency screening, using the inertial force of the material to achieve particle stratification by density. The first vibrating motor 43 performs high-frequency screening, allowing the bran powder to pass through the screen quickly and avoiding it from getting stuck in the screen holes. The dual-frequency vibrating screening can reduce the friction and damage between rice grains.

[0026] Example 2: Figure 1 and Figure 2As shown, the feed end of the screening drum 62 is fixedly connected to the discharge hopper 61, and the outer side of the discharge hopper 61 is fixedly connected to the top side of the mounting frame 3; the discharge end of the screening drum 62 is fixedly connected to the conveying plate 66, and the outer side of the conveying plate 66 overlaps with the opening end of the second inclined frame 51; a mounting base 67 is fixedly connected to one side of the mounting frame 3, and a drive motor 65 is fixedly connected to one side of the mounting base 67. The output end of the drive motor 65 passes through the mounting base 67 and is fixedly connected to a rotating rod 63. The rotating rod 63 is located inside the screening drum 62, and an anti-blocking blade 64 is fixedly connected to the outside of the rotating rod 63. The outer side of the anti-blocking blade 64 overlaps with the inner wall of the screening drum 62.

[0027] Rice raw material inside the hopper 61 enters the screening drum 62 through the connected screening drum 62. The drive motor 65 drives the rotating rod 63 to rotate, and the anti-blocking blade 64 moves accordingly. The outer surface of the anti-blocking blade 64 is in contact with the inner wall of the screening drum 62. During the rotation of the anti-blocking blade 64, the rice inside the screening drum 62 can be stirred. Large stones and rice husk impurities in the rice are guided out by the inclined screening drum 62 and the conveying plate 66. Other materials are filtered out through the filter holes opened on the side wall of the screening drum 62, which facilitates the initial screening of rice.

[0028] The operating method and working principle of this device are as follows: Rice raw material enters the interior of the screening drum 62. The drive motor 65 drives the rotating rod 63 to rotate, and the anti-clogging blade 64 moves accordingly, stirring the rice inside the screening drum 62. Large stones and rice husk impurities in the rice are guided out through the inclined screening drum 62 and the conveying plate 66. Other materials are filtered out through the filter holes opened on the side wall of the screening drum 62, performing initial screening of the rice. Then the material falls onto the fixed plate 52, and the second vibrating motor 57 vibrates to screen large particles. The material passes through the screen and falls onto the first inclined frame 42. Through the vibration of the first vibrating motor 43, the material passes through the first screen 44 for secondary screening. Broken rice is guided by the inclined first inclined frame 42 and collected uniformly. Bran powder passes through the screen and falls into the collection frame 2 for collection.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A multi-band vibrating cleaning screen for rice processing, comprising a support frame (1), characterized in that: A mounting frame (3) is fixedly connected to the outer side of the support frame (1). A pre-screening mechanism (6) is installed on the top side of the mounting frame (3). The pre-screening mechanism (6) includes a screening drum (62). The outer side of the screening drum (62) is fixedly connected to the mounting frame (3). A second vibrating screen mechanism (5) is provided below the screening drum (62). The second vibrating screen mechanism (5) includes a second inclined frame (51). A second vibration motor (57) is installed on one side of the second inclined frame (51). A fixed... A plate (52) is fixedly connected to one side of a second screen (53). A first vibrating screen mechanism (4) is provided below the second inclined frame (51). The first vibrating screen mechanism (4) includes a mounting plate (41). One end of the mounting plate (41) is fixedly connected to one side of the support frame (1). The other end of the mounting plate (41) is fixedly connected to a first inclined frame (42). A first screen (44) is fixedly connected to the middle of the first inclined frame (42). A first vibrating motor (43) is installed on the bottom side of the first inclined frame (42).

2. The multi-band vibrating cleaning screen for rice processing according to claim 1, characterized in that: A collection frame (2) is provided below the first inclined frame (42), and the outer side of the collection frame (2) is fixedly connected to the support frame (1).

3. The multi-frequency vibrating cleaning screen for rice processing according to claim 1, characterized in that: A buffer assembly (55) is fixedly connected to the outside of the second tilting frame (51). A connecting post (56) is installed at one end of the buffer assembly (55), and one end of the connecting post (56) is fixedly connected to one side of the support frame (1).

4. The multi-frequency vibrating cleaning screen for rice processing according to claim 1, characterized in that: The second inclined frame (51) has a guide plate (54) fixedly connected to its open end.

5. The multi-frequency vibrating cleaning screen for rice processing according to claim 1, characterized in that: The feed end of the screening drum (62) is fixedly connected to the feed hopper (61), and the outer side of the feed hopper (61) is fixedly connected to the top side of the mounting frame (3).

6. The multi-frequency vibrating cleaning screen for rice processing according to claim 1, characterized in that: The discharge end of the screening drum (62) is fixedly connected to a conveying plate (66), and the outer side of the conveying plate (66) overlaps with the opening end of the second inclined frame (51).

7. A multi-frequency vibrating cleaning screen for rice processing according to claim 1, characterized in that: A mounting base (67) is fixedly connected to one side of the mounting frame (3), and a drive motor (65) is fixedly connected to one side of the mounting base (67). The output end of the drive motor (65) passes through the mounting base (67) and is fixedly connected to a rotating rod (63). The rotating rod (63) is located inside the screening drum (62), and an anti-blocking blade (64) is fixedly connected to the outside of the rotating rod (63). The outer side of the anti-blocking blade (64) overlaps with the inner wall of the screening drum (62).

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