Multistage screening equipment for rice processing
By designing the reciprocating movement of the screening cylinder and the screen, the problem of low screening efficiency of existing rice processing equipment is solved, the adequacy and rapidity of multi-stage screening is achieved, and the quality and sales value of rice products are improved.
Patent Information
- Application Number
- CN202422189528.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-06
AI Technical Summary
The existing rice processing equipment is inefficient and insufficient during the screening process, resulting in uneven rice particle size, affecting product quality and sales price.
The design includes a screening cylinder, two screens, shaking components and discharge components. The terminal drive motor drives the rotating rod and belt roller to realize the reciprocating movement of the screen, drives the rice to shake and performs multi-stage screening to avoid stacking and blockage.
Improve the efficiency and quality of rice screening, ensure sufficient multi-stage screening, prevent blockage, save time and improve product quality.
Smart Images
Figure CN223145289U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rice screening, in particular to a multi-stage rice processing screening device. Background Art
[0002] Rice, also known as paddy rice, is a food made from paddy rice through processes such as cleaning, hulling, milling, and finished product finishing. Rice contains nearly 64% of the nutrients in paddy rice and more than 90% of the nutrients required by the human body. At the same time, it is the main food for people in most parts of China. During the rice processing process, due to various reasons, the processed rice grains are not completely the same in size. There will be some larger grains, some smaller grains, and there will also be a certain amount of broken rice. However, in the sales process, the selling prices of large-grained rice and small-grained rice are completely different. Moreover, if the rice sold has uneven grain sizes and even contains broken rice, it will seriously reduce the quality and selling price of the rice. Therefore, in order to improve the commercial value of the product and obtain higher-quality rice, multi-stage screening of rice is required at the end of rice processing.
[0003] However, in the prior art, most of the multi-stage screening devices for rice processing screen through a slanted screen, and use the rolling of rice on the surface of the screen to screen the rice. However, when a relatively large amount of rice is added at one time, the slanted screen may not have enough time to screen the rice and the rice will roll out of the range of the screen, resulting in low screening efficiency and insufficient screening, reducing the quality of rice screening by this device. Summary of the Utility Model
[0004] The purpose of the utility model is to solve the problems existing in the prior art.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A multi-stage rice processing screening device, comprising: a screening cylinder and two screens. A plurality of support legs are fixedly installed on the bottom surface of the screening cylinder. A control terminal is fixedly arranged on the outer wall surface of the screening cylinder. A shaking assembly is arranged on the outer wall surface of the screening cylinder. A discharging assembly is arranged on the top surface of the screening cylinder. The shaking assembly includes four through grooves. Every two of the four through grooves are symmetrically arranged on the outer wall surface of the screening cylinder. Vertical rods are fixedly installed between the inner walls at the upper and lower ends of the four through grooves. L-shaped plates are slidably connected to the surfaces of the four vertical rods. Every two of the four L-shaped plates are correspondingly fixedly installed at both ends of the bottom plates of the two screens.
[0006] As a preferred embodiment, a plurality of U-shaped rods are fixedly installed on the outer wall surface of the screening cylinder. A movable block is slidably connected to the surface of each of the plurality of U-shaped rods. A return plate is fixedly installed between every two of the plurality of movable blocks as a group. Rack bars are fixedly installed on the inner wall surfaces on both sides of each of the plurality of return plates. The top surfaces of the plurality of return plates respectively abut against the bottoms of four L-shaped plates.
[0007] As a preferred embodiment, a plurality of U-shaped plates are fixedly installed on the outer wall surface of the screening cylinder. A rotating rod is connected between the inner wall surface of one side of each of the plurality of U-shaped plates and the outer wall surface of the screening cylinder through a bearing. A first motor is fixedly installed on the surface of one side of two of the U-shaped plates. The output ends of the two first motors respectively penetrate through the two U-shaped plates movably and are fixedly connected to one ends of the two rotating rods.
[0008] As a preferred embodiment, a semi-gear is fixedly sleeved on the surface of each of the plurality of rotating rods. The plurality of semi-gears and the plurality of rack bars are correspondingly meshed with each other. The plurality of semi-gears are correspondingly located inside the plurality of return plates.
[0009] As a preferred embodiment, a belt roller is fixedly installed on the outer wall surface of each of the plurality of rotating rods. The plurality of belt rollers are correspondingly located outside the plurality of semi-gears. A transmission belt is connected between every two of the plurality of belt rollers as a group.
[0010] As a preferred embodiment, the discharging assembly includes a cross plate. The cross plate is fixedly installed on the top surface of the screening cylinder. A rotating shaft is connected between the cross plate and the bottom inner wall surface of the screening cylinder through a bearing. Through holes are respectively opened at the centers of the top surfaces of the two screen meshes. The rotating shaft movably fits through the two through holes. A second motor is fixedly installed on the top surface of the cross plate. The output end of the second motor penetrates through the cross plate movably and is fixedly connected to one end of the rotating shaft.
[0011] As a preferred embodiment, a plurality of pushing plates are fixedly installed on the outer wall surface of the rotating shaft. Two of the plurality of pushing plates are correspondingly located above the two screen meshes, and the other pushing plate is in contact with the bottom plate surface of the screening cylinder. A plurality of discharging ports are through-connected to the outer wall surface of the screening cylinder. Electric control valves are installed inside each of the plurality of discharging ports. The bottom surfaces of the plurality of pushing plates are flush with the bottom inner wall surfaces of the plurality of discharging ports.
[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:
[0013] 1. In this utility model, when multi - level screening of rice is required, the rice to be screened is pre - added into the screening cylinder. Subsequently, two first motors are operated through the control terminal. The operation of the two first motors drives the rotation of two of the rotating rods. The rotation of the two rotating rods drives the rotation of two of the belt rollers. Transmission belts are correspondingly connected between the two belt rollers and the other two belt rollers, so that the other two belt rollers rotate synchronously, and further the other two rotating rods rotate synchronously. The rotation of multiple rotating rods drives the rotation of multiple semi - gears. The multiple semi - gears rotate and mesh with multiple racks correspondingly. Thus, multiple U - shaped plates make reciprocating motions on the surfaces of multiple U - shaped rods by means of multiple movable blocks. Further, multiple U - shaped plates press against multiple L - shaped plates to move upward on the surfaces of multiple vertical rods. Since the multiple U - shaped plates make reciprocating motions, the multiple L - shaped plates will automatically reset under the influence of gravity, and further the multiple L - shaped plates make reciprocating motions on the surfaces of multiple vertical rods. The reciprocating motions of the multiple L - shaped plates drive the two sieves to move up and down reciprocally. The reciprocating up - and - down motion of the two sieves drives the rice on the sieve surface to shake, accelerating the screening while ensuring sufficient screening. The sieve holes on the surfaces of the two sieves are of different sizes, so as to perform multi - level screening treatment on the rice. Through the cooperation of the above - mentioned structure, the reciprocating up - and - down motion of the two sieves drives the rice on the sieve surface to shake, accelerating the screening while ensuring sufficient screening, avoiding the accumulation of rice on the screening net surface and blocking the sieve, and performing multi - level and rapid screening treatment on the rice through sieves of different specifications, improving the quality of rice screening by this device.
[0014] 2. In this utility model, when the screened rice needs to be discharged, the two sieves are pre - moved to the highest position through the shaking assembly. When the two sieves are in the highest position, two of the push plates correspondingly fit against two other push plates, and another push plate fits against the inner surface of the bottom wall of the screening cylinder. Thus, the bottom surfaces of two of the push plates correspondingly fit against the top surfaces of the two sieves. Subsequently, the control terminal opens multiple discharge ports and operates the second motor. The operation of the second motor drives the rotation of the rotating shaft. The rotation of the rotating shaft drives the rotation of multiple push plates. The rotation of multiple push plates thus pushes the rice on the two sieves and the inner surface of the bottom wall of the screening cylinder and discharges it through the multiple discharge ports correspondingly. Through the cooperation of the above - mentioned structure, the rotating shaft drives multiple push plates to push the rice out, enabling the screened rice to be discharged simultaneously, saving time and facilitating the subsequent use of this device. Brief Description of the Drawings
[0015] Figure 1 It is a three - dimensional structural schematic diagram of a multi - level rice - processing screening device provided by the present utility model;
[0016] Figure 2 It is a right - view structural schematic diagram of a multi - level rice - processing screening device provided by the present utility model;
[0017] Figure 3A multi - stage screening device for rice processing provided by the present utility model Figure 2 The sectional structure schematic diagram;
[0018] Figure 4 The structure schematic diagram of the screen of a multi - stage screening device for rice processing provided by the present utility model;
[0019] Figure 5 A multi - stage screening device for rice processing provided by the present utility model Figure 2 The structure schematic diagram of A in;
[0020] Figure 6 A multi - stage screening device for rice processing provided by the present utility model Figure 3 The structure schematic diagram of B in.
[0021] Legend description:
[0022] 1. Screening cylinder; 2. Support legs; 3. Control terminal; 4. Shaking assembly; 401. Through - slot; 402. Vertical rod; 403. L - shaped plate; 404. U - shaped rod; 405. Movable block; 406. Return - shaped plate; 407. Rack; 408. U - shaped plate; 409. Rotating rod; 410. First motor; 411. Half - gear; 412. Belt roller; 413. Transmission belt; 5. Discharge assembly; 501. Cross - plate; 502. Rotating shaft; 503. Second motor; 504. Pushing plate; 505. Through - hole; 506. Discharge port; 6. Screen. Specific implementation manners
[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0024] Please refer to Figures 1-6 , the present utility model provides a technical solution: A multi - stage screening device for rice processing, including: a screening cylinder 1 and two screens 6. A plurality of support legs 2 are fixedly installed on the bottom surface of the screening cylinder 1. A control terminal 3 is fixedly installed on the outer wall surface of the screening cylinder 1. A shaking assembly 4 is provided on the outer wall surface of the screening cylinder 1. A discharge assembly 5 is provided on the top surface of the screening cylinder 1. The shaking assembly 4 includes four through - slots 401. Every two of the four through - slots 401 are symmetrically arranged in a group on the outer wall surface of the screening cylinder 1. Vertical rods 402 are fixedly installed between the inner walls at the upper and lower ends of the four through - slots 401. L - shaped plates 403 are slidably connected to the surfaces of the four vertical rods 402. Every two of the four L - shaped plates 403 are correspondingly fixedly installed at both ends of the bottom plates of the two screens 6.
[0025] Specifically, the control terminal 3 functions to control the switches of the two first motors 410 and the second motor 503. The inner wall surfaces of one side of the multiple L-shaped plates 403 are all attached to the inner wall surface of the screening cylinder 1 to prevent rice from being discharged from the multiple through grooves 401 out of the screening cylinder 1. The sizes of the sieve holes on the surfaces of the two sieve meshes 6 are different, and the size of the sieve holes on the upper sieve mesh 6 is smaller than that of the lower sieve mesh 6, so as to perform multi-stage screening treatment on the rice.
[0026] In one embodiment, a plurality of U-shaped rods 404 are fixedly installed on the outer wall surface of the screening cylinder 1. Movable blocks 405 are slidably connected to the surfaces of the plurality of U-shaped rods 404. A return plate 406 is fixedly installed between every two of the plurality of movable blocks 405 as a group. Rack bars 407 are fixedly installed on the inner wall surfaces of both sides of the plurality of return plates 406. The top surfaces of the plurality of return plates 406 are correspondingly abutted against the bottoms of the four L-shaped plates 403.
[0027] Specifically, the plurality of return plates 406 slide on the surfaces of the plurality of U-shaped rods 404 by means of the plurality of movable blocks 405.
[0028] In one embodiment, a plurality of U-shaped plates 408 are fixedly installed on the outer wall surface of the screening cylinder 1. A rotating rod 409 is connected between the inner wall surface of one side of each of the plurality of U-shaped plates 408 and the outer wall surface of the screening cylinder 1 through a bearing. First motors 410 are fixedly installed on the surfaces of one side of two of the plurality of U-shaped plates 408. The output ends of the two first motors 410 correspondingly penetrate through two of the plurality of U-shaped plates 408 and are fixedly connected to one ends of two of the rotating rods 409.
[0029] Specifically, the first motor 410 functions to drive the rotating rod 409 to rotate.
[0030] In one embodiment, semi-gear wheels 411 are fixedly sleeved on the surfaces of the plurality of rotating rods 409. The plurality of semi-gear wheels 411 and the plurality of rack bars 407 are correspondingly meshed with each other. The plurality of semi-gear wheels 411 are correspondingly located inside the plurality of return plates 406.
[0031] Specifically, when the semi-gear wheel 411 disengages from the rack bar 407 on the inner wall surface of one side of the return plate 406, it meshes with the rack bar 407 on the inner wall surface of the other side of the return plate 406, and so on repeatedly, so that the semi-gear wheel 411 drives the return plate 406 to perform a reciprocating motion.
[0032] In one embodiment, belt rollers 412 are fixedly installed on the outer wall surfaces of the plurality of rotating rods 409. The plurality of belt rollers 412 are correspondingly located outside the plurality of semi-gear wheels 411. A transmission belt 413 is connected between every two of the plurality of belt rollers 412 as a group.
[0033] Specifically, the belt rollers 412 and the transmission belt 413 function to ensure the synchronous rotation of the plurality of rotating rods 409.
[0034] In one embodiment, the discharging assembly 5 includes a cross plate 501 fixedly installed on the top surface of the screening cylinder 1. A rotating shaft 502 is connected between the cross plate 501 and the bottom inner wall surface of the screening cylinder 1 through a bearing. Through holes 505 are formed in the centers of the top surfaces of the two screen meshes 6. The rotating shaft 502 movably passes through the two through holes 505. A second motor 503 is fixedly installed on the top surface of the cross plate 501. The output end of the second motor 503 movably passes through the cross plate 501 and is fixedly connected to one end of the rotating shaft 502.
[0035] Specifically: The second motor plays a role in driving the rotation of the rotating shaft.
[0036] In one embodiment, a plurality of push plates 504 are fixedly installed on the outer wall surface of the rotating shaft 502. Two of the plurality of push plates 504 are correspondingly located above the two screen meshes 6, and another push plate 504 is in contact with the bottom plate surface of the screening cylinder 1. A plurality of discharging ports 506 are connected through the outer wall surface of the screening cylinder 1. Electric control valves (not shown in the figure) are installed inside the plurality of discharging ports 506. The bottom surfaces of the plurality of push plates 504 are flush with the bottom inner wall surfaces of the plurality of discharging ports 506.
[0037] Specifically: The plurality of push plates 504 play a role in pushing the rice on the bottom inner wall surface of the two screen meshes 6 and the screening cylinder 1. Electric control valves are installed inside the plurality of discharging ports 506, and the switches are controlled by the control terminal 3.
[0038] Working principle: When the device is screening rice and multi-stage screening of rice is required, the rice to be screened is pre-added into the screening cylinder 1. Subsequently, two first motors 410 are operated through the control terminal 3. The operation of the two first motors 410 drives the rotation of two of the rotating rods 409. The rotation of two of the rotating rods 409 drives the rotation of two of the belt rollers 412. Transmission belts 413 are correspondingly connected between two of the belt rollers 412 and the other two belt rollers 412, so that the other two belt rollers 412 rotate synchronously, and further the other two rotating rods 409 rotate synchronously. The rotation of multiple rotating rods 409 drives the rotation of multiple semi-gear 411. The rotation of multiple semi-gear 411 and multiple racks 407 are correspondingly meshed with each other, so that multiple return plates 406 make reciprocating motions on the surfaces of multiple U-shaped rods 404 by means of multiple movable blocks 405. Further, multiple return plates 406 abut against multiple L-shaped plates 403 and move upward on the surfaces of multiple vertical rods 402. Due to the reciprocating motions of multiple return plates 406, multiple L-shaped plates 403 will automatically reset under the influence of gravity, and further multiple L-shaped plates 403 make reciprocating motions on the surfaces of multiple vertical rods 402. The reciprocating motions of multiple L-shaped plates 403 drive the two screens 6 to make reciprocating motions up and down. The reciprocating motions of the two screens 6 up and down drive the rice on the surfaces of the screens 6 to shake, accelerating the screening while ensuring sufficient screening. The sizes of the screen holes on the surfaces of the two screens 6 are different, so as to perform multi-stage screening treatment on the rice. Through the cooperation of the above structures, the reciprocating motions of the two screens 6 up and down drive the rice on the surfaces of the screens 6 to shake, accelerating the screening while ensuring sufficient screening, avoiding the accumulation of rice on the surface of the screening net and blocking the screen 6, and performing multi-stage and rapid screening treatment on the rice through screens 6 of different specifications, improving the quality of rice screening by the device; when it is necessary to discharge the screened rice, the two screens 6 are pre-moved to the highest position through the shaking assembly 4. The two screens 6 are at the highest position, so that the bottom surfaces of two of the push plates 504 correspondingly fit the top surfaces of the two screens 6, and the other push plate 504 fits the inner wall surface of the bottom of the screening cylinder 1, so that multiple push plates 504 can push the rice on the surfaces of the two screens 6 and the inner wall surface of the bottom of the screening cylinder 1. Subsequently, the control terminal 3 opens multiple discharge ports 506 and operates the second motor 503. The operation of the second motor 503 drives the rotation of the rotating shaft 502. The rotation of the rotating shaft 502 drives the rotation of multiple push plates 504. The rotation of multiple push plates 504 thus pushes the rice on the surfaces of the two screens 6 and the inner wall surface of the bottom of the screening cylinder 1 and discharges it correspondingly through multiple discharge ports 506. Through the cooperation of the above structures, the rotating shaft 502 drives multiple push plates 504 to push the rice out, so that the screened rice can be discharged simultaneously, saving time and facilitating the subsequent use of the device.
[0039] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A multi-stage screening device for rice processing, characterized in that, Including: A screening cylinder (1) and two sieve meshes (6). A plurality of support legs (2) are fixedly installed on the bottom surface of the screening cylinder (1). A control terminal (3) is fixedly provided on the outer wall surface of the screening cylinder (1). A shaking assembly (4) is provided on the outer wall surface of the screening cylinder (1). A discharging assembly (5) is provided on the top surface of the screening cylinder (1). The shaking assembly (4) includes four through grooves (401). Every two of the four through grooves (401) are symmetrically arranged on the outer wall surface of the screening cylinder (1) as a group. Vertical rods (402) are fixedly installed between the inner walls at the upper and lower ends of the four through grooves (401). L-shaped plates (403) are slidably connected to the surfaces of the four vertical rods (402). Every two of the four L-shaped plates (403) are correspondingly fixedly installed at both ends of the bottom plates of the two sieve meshes (6).
2. The multi-stage screening equipment for rice processing according to claim 1, characterized in that: A plurality of U-shaped rods (404) are fixedly installed on the outer wall surface of the screening cylinder (1). Movable blocks (405) are slidably connected to the surfaces of the plurality of U-shaped rods (404). A return plate (406) is fixedly installed between every two of the plurality of movable blocks (405) as a group. Rack bars (407) are fixedly installed on the inner wall surfaces of both sides of the plurality of return plates (406). The top surfaces of the plurality of return plates (406) correspondingly abut against the bottoms of the four L-shaped plates (403).
3. A multi-stage screening device for rice processing according to claim 1, characterized in that: A plurality of U-shaped plates (408) are fixedly installed on the outer wall surface of the screening cylinder (1). Rotating rods (409) are connected between the inner wall surface of one side of the plurality of U-shaped plates (408) and the outer wall surface of the screening cylinder (1) through bearings. First motors (410) are fixedly installed on the surface of one side of two of the plurality of U-shaped plates (408). The output ends of the two first motors (410) correspondingly penetrate through two of the plurality of U-shaped plates (408) and are fixedly connected to one ends of two of the rotating rods (409).
4. A multi-stage screening device for rice processing according to claim 3, characterized in that: Half gears (411) are fixedly sleeved on the surfaces of the plurality of rotating rods (409). The plurality of half gears (411) and the plurality of rack bars (407) are correspondingly meshed with each other. The plurality of half gears (411) are correspondingly located inside the plurality of return plates (406).
5. The multi-stage screening equipment for rice processing according to claim 3, characterized in that: Belt rollers (412) are fixedly installed on the outer wall surfaces of the plurality of rotating rods (409). The plurality of belt rollers (412) are correspondingly located outside the plurality of half gears (411). Transmission belts (413) are connected between every two of the plurality of belt rollers (412) as a group.
6. A multi-stage screening device for rice processing according to claim 1, characterized in that: The discharging assembly (5) includes a cross plate (501). The cross plate (501) is fixedly installed on the top surface of the screening cylinder (1). A rotating shaft (502) is connected between the cross plate (501) and the inner wall surface of the bottom of the screening cylinder (1) through a bearing. Through holes (505) are respectively opened at the centers of the top surfaces of the two sieve meshes (6). The rotating shaft (502) movably fits through the two through holes (505). A second motor (503) is fixedly installed on the top surface of the cross plate (501). The output end of the second motor (503) penetrates through the cross plate (501) and is fixedly connected to one end of the rotating shaft (502).
7. A multi-stage screening device for rice processing according to claim 6, characterized in that: A plurality of push plates (504) are fixedly installed on the outer wall surface of the rotating shaft (502). Two of the plurality of push plates (504) are correspondingly located above the two sieves (6), and the other push plate (504) is attached to the bottom surface of the screening cylinder (1). A plurality of discharge ports (506) are connected through the outer wall surface of the screening cylinder (1). Electric control valves are installed inside the plurality of discharge ports (506). The bottom surface of the plurality of push plates (504) is flush with the bottom inner wall surface of the plurality of discharge ports (506).