Color sorter facilitating discharge of rice impurities

By using a cam mechanism driven by a servo motor in conjunction with the sieve plate and a dust collection device, the problem of dust and debris affecting the screening accuracy in rice color sorters is solved, achieving efficient removal of impurities and improving the screening effect of rice.

CN224559337UActive Publication Date: 2026-07-28HEFEI NAGE OPTOELECTRONICS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEFEI NAGE OPTOELECTRONICS TECH CO LTD
Filing Date
2025-05-26
Publication Date
2026-07-28

AI Technical Summary

Technical Problem

Existing rice color sorters are easily affected by dust and debris during screening, which leads to a decrease in screening accuracy and makes it difficult to effectively remove impurities.

Method used

The cam mechanism driven by a servo motor works in conjunction with the sieve plate. By adjusting the feed rate and screening method, and combining it with a dust collection device to remove dust and debris smaller than rice grains, the feed size is adjusted using a dual-head motor and worm gear transmission system, and dust is extracted by a dust collection fan.

Benefits of technology

It improves the precision of rice sieving, effectively removes dust and broken rice, and enhances the quality and sieving efficiency of rice.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a color sorter convenient to discharge rice impurity, including color sorter body, the color sorter body upper surface is provided with the feed frame, the feed frame one side intercommunication is provided with the discharge pipe, the feed frame inner wall and the discharge pipe junction place articulate to have the sieve plate, the feed frame inner wall one side is provided with the fixed plate, the fixed plate bottom surface is provided with the arc sleeve, the arc sleeve inside slide connection has the arc hollow tube, the arc sleeve inside upper surface is provided with the spring. The utility model discloses through the double -end motor drive both sides output end's worm rotation, and the worm passes through and engages with the worm wheel, and further drive the rotating rod rotation, and the rotating rod drives the rotation of the rotation board fixed connection of periphery, and the both sides rotation board rotation will be far away or close to one end simultaneously, and further can adjust the size of feeding to make the rice into the feed frame inside avoid the problem of the mutual obstruction of the rice each other and cause the poor color selection precision caused by the excessive feeding.
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Description

Technical Field

[0001] This utility model belongs to the field of color sorting machine technology, and in particular relates to a color sorting machine that facilitates the removal of impurities from rice. Background Technology

[0002] Rice is a staple food for people in most parts of China. During harvest, rice inevitably suffers some damage, such as moldy grains, defective grains, and black-headed grains, all of which affect the overall quality of the rice. This is where rice color sorters come in. Rice color sorters utilize photoelectric technology to automatically separate discolored grains from the rice based on differences in its optical properties, thereby improving rice quality and removing impurities.

[0003] However, when color sorters sieve rice, some rice contains a significant amount of dust, debris, and broken rice, which can negatively impact subsequent sieving and ultimately affect the quality of the sorted rice. Therefore, a color sorter that facilitates the removal of impurities from rice is proposed to address the problems described in the background section. Summary of the Invention

[0004] The purpose of this invention is to provide a color sorter that facilitates the removal of impurities from rice, thus solving existing problems.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a color sorter for easily removing impurities from rice. It includes a color sorter body, a feeding frame on the upper surface of the body, a discharge pipe connected to one side of the feeding frame, a sieve plate hinged to the connection between the inner wall of the feeding frame and the discharge pipe, a fixing plate on one side of the inner wall of the feeding frame, an arc-shaped sleeve on the bottom surface of the fixing plate, an arc-shaped hollow tube slidably connected inside the arc-shaped sleeve, a spring on the upper surface inside the arc-shaped sleeve, a servo motor on one side of the feeding frame, a cam at the output end of the servo motor, a collection box inside the feeding frame, a rotating rod symmetrically rotatably connected inside the feeding frame, a rotating plate inserted around the circumference of the rotating rod, a worm gear at one end of the rotating rod, a double-headed motor on one side of the feeding frame, worms at the output ends of both sides of the double-headed motor, the worm gear meshing with the worm, and the threads of the worms on both sides of the double-headed motor being opposite.

[0007] Furthermore, a through groove is provided on one side of the feeding frame, and a filter screen is installed in the through groove. A dust collection box is provided on one side of the feeding frame located in the through groove, and a filter plate is installed in the dust collection box. A drop groove is provided on the bottom surface of the dust collection box, and sliding grooves are provided on both sides of the drop groove on the bottom surface of the dust collection box. A waste box is slidably connected in the sliding grooves, and a dust collection fan is connected to one side of the dust collection box.

[0008] Furthermore, the bottom end of the spring is fixedly connected to the bottom surface of the inner wall of the arc-shaped hollow tube, the cam is located on one side below the sieve plate, the cam protrusion strikes the bottom surface of the sieve plate, the collection box is located below the sieve plate, the feed frame is connected to the dust collection box through a through groove, and the discharge pipe is connected to the interior of the color sorter body.

[0009] This utility model has the following beneficial effects:

[0010] This invention utilizes a dual-head motor to drive worm gears at both output ends. The worm gears mesh with worm wheels, which in turn drive a rotating rod. This rotating rod, in turn, drives rotating plates fixedly connected to the periphery of the rotating rod. As the two sets of rotating plates rotate, one end moves away from or towards the other, thus adjusting the feed size to prevent excessive feeding and avoid the rice from blocking each other, which would result in poor color sorting accuracy. When the rice falls onto the sieve plate, a servo motor drives a cam at the output end to rotate, and the cam protrusion strikes the sieve plate. On the bottom surface, the sieve plate presses upward against the spring, and the arc-shaped hollow tube slides and retracts within the arc-shaped sleeve. When the cam protrusion stops striking the sieve plate, the spring returns to its original position. The cam repeatedly strikes the bottom surface of the sieve plate, sieving the rice that falls onto the sieve plate surface. Smaller pieces and broken rice will pass through the sieve plate and fall into the collection box for collection and further processing. At the same time, the aperture of the sieve plate is smaller than that of whole rice grains, and dust will be generated when the sieve plate sieves the rice. The dust generated is extracted by a dust extraction fan, and the filter screen will prevent rice from entering the dust collection box through the through slot.

[0011] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 A schematic diagram of the overall structure of a color sorter for easily removing impurities from rice;

[0014] Figure 2 A front view of a color sorter designed to facilitate the removal of impurities from rice;

[0015] Figure 3 for Figure 2 Cross-sectional view of section AA;

[0016] Figure 4 for Figure 3Cross-sectional view of section BB in the middle;

[0017] Figure 5 for Figure 4 Enlarged view of section C.

[0018] The components represented by each number in the attached diagram are listed below: 1. Color sorter body; 2. Feed frame; 20. Rotating rod; 200. Worm gear; 201. Rotating plate; 203. Screen plate; 204. Fixed plate; 205. Arc-shaped sleeve; 206. Arc-shaped hollow tube; 207. Spring; 208. Servo motor; 209. Cam; 21. Discharge pipe; 22. Through groove; 220. Filter screen; 2010. Collection box; 24. Dual-head motor; 240. Worm gear; 3. Dust collection box; 30. Filter plate; 301. Slide groove; 302. Waste box; 31. Dust collection fan. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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 1-5As shown, this utility model is a color sorter for easily removing impurities from rice, including a color sorter body 1. A feeding frame 2 is provided on the upper surface of the color sorter body 1. A discharge pipe 21 is connected to one side of the feeding frame 2. A sieve plate 203 is hinged at the connection between the inner wall of the feeding frame 2 and the discharge pipe 21. A fixing plate 204 is provided on one side of the inner wall of the feeding frame 2. An arc-shaped sleeve 205 is provided on the bottom surface of the fixing plate 204. An arc-shaped hollow tube 206 is slidably connected inside the arc-shaped sleeve 205. A spring 207 is provided on the upper surface inside the arc-shaped sleeve 205. A servo motor 208 is provided on one side of the feeding frame 2. A cam 209 is provided at the output end of the servo motor 208. A collection box 2010 is provided inside the feeding frame 2.

[0023] Furthermore, a rotating rod 20 is symmetrically rotatably connected inside the feed frame 2. A rotating plate 201 is inserted through the circumference of the rotating rod 20. A worm gear 200 is provided at one end of the rotating rod 20. A double-headed motor 24 is provided on one side of the feed frame 2. Worms 240 are provided at the output ends on both sides of the double-headed motor 24. The worm gear 200 meshes with the worm 240. The threads of the worms 240 on both sides of the double-headed motor 24 are opposite.

[0024] Furthermore, a through groove 22 is provided on one side of the feed frame 2, and a filter screen 220 is provided in the through groove 22. A dust collection box 3 is provided on one side of the feed frame 2 located in the through groove 22, and a filter plate 30 is provided in the dust collection box 3. A drop groove is provided on the bottom surface of the dust collection box 3, and sliding grooves 301 are provided on both sides of the drop groove on the bottom surface of the dust collection box 3. A waste box 302 is slidably connected in the sliding grooves 301. A dust collection fan 31 is connected to one side of the dust collection box 3.

[0025] Furthermore, the bottom end of the spring 207 is fixedly connected to the bottom surface of the inner wall of the arc-shaped hollow tube 206, the cam 209 is located on one side below the sieve plate 203, the protrusion of the cam 209 strikes the bottom surface of the sieve plate 203, the collection box 2010 is located below the sieve plate 203, the feed frame 2 and the dust collection box 3 are connected through the through groove 22, and the discharge pipe 21 is connected to the interior of the color sorter body 1.

[0026] It should be noted that this utility model uses a dual-head motor 24 to drive the worm gears 240 at both output ends to rotate. The worm gears 240 mesh with the worm wheel 200, which in turn drives the rotating rod 20 to rotate. The rotating rod 20 drives the rotating plate 201 fixedly connected to the circumferential side to rotate. As the two sets of rotating plates 201 rotate, one end will move away from or towards the other, thereby adjusting the amount of rice fed into the feeding frame 2 to avoid excessive feeding at one time, which would cause the rice grains to block each other and result in poor color sorting accuracy. When the rice falls onto the surface of the sieve plate 203, the servo motor 208 drives the cam 209 at the output end to rotate. The protrusion of the cam 209 will strike the bottom surface of the sieve plate 203. The sieve plate 203 presses upward against the spring 207, and the arc-shaped hollow tube 206 slides and retracts within the arc-shaped sleeve 205. When the cam 209 no longer strikes the sieve plate 203, the spring 207 returns to its original position. The cam 209 repeatedly strikes the bottom surface of the sieve plate 203 to sieve the rice that falls onto the surface of the sieve plate 203. Smaller pieces of rice and broken rice will pass through the sieve plate 203 and fall into the collection box 2010 for collection and further processing. At the same time, the aperture of the sieve plate 203 is smaller than that of whole rice grains, and dust will be generated when the sieve plate 203 sieves the rice. The dust generated is extracted by the dust extraction fan 31, and the filter screen 220 prevents rice from entering the dust collection box 3 through the through groove 22.

[0027] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A color sorter for easily removing impurities from rice, comprising a color sorter body (1), characterized in that: The color sorter body (1) has a feeding frame (2) on its upper surface. A discharge pipe (21) is connected to one side of the feeding frame (2). A sieve plate (203) is hinged to the inner wall of the feeding frame (2) at the connection with the discharge pipe (21). A fixing plate (204) is provided on one side of the inner wall of the feeding frame (2). An arc-shaped sleeve (205) is provided on the bottom surface of the fixing plate (204). An arc-shaped hollow tube (206) is slidably connected inside the arc-shaped sleeve (205). A spring (207) is provided on the upper surface inside the arc-shaped sleeve (205). A servo motor (208) is provided on one side of the feeding frame (2). A cam (209) is provided at the output end of the servo motor (208). A collection box (2010) is provided inside the feeding frame (2).

2. The color sorter for easily removing impurities from rice according to claim 1, characterized in that, A rotating rod (20) is symmetrically rotatably connected inside the feed frame (2). A rotating plate (201) is inserted through the circumference of the rotating rod (20). A worm wheel (200) is provided at one end of the rotating rod (20). A double-headed motor (24) is provided on one side of the feed frame (2). Worms (240) are provided at the output ends on both sides of the double-headed motor (24). The worm wheel (200) meshes with the worm (240). The threads of the worms (240) on both sides of the double-headed motor (24) are opposite.

3. A color sorter for easily removing impurities from rice according to claim 1, characterized in that, The feed frame (2) has a through groove (22) on one side, and a filter screen (220) is provided in the through groove (22).

4. A color sorter for easily removing impurities from rice according to claim 3, characterized in that, The feeding frame (2) is provided with a dust collection box (3) on one side of the through groove (22). The dust collection box (3) is provided with a filter plate (30). The bottom surface of the dust collection box (3) is provided with a drop groove. The bottom surface of the dust collection box (3) is provided with a sliding groove (301) on both sides of the drop groove. The waste box (302) is slidably connected in the sliding groove (301). A dust collection fan (31) is connected to one side of the dust collection box (3).

5. A color sorter for easily removing impurities from rice according to claim 1, characterized in that, The bottom end of the spring (207) is fixedly connected to the bottom surface of the inner wall of the arc-shaped hollow tube (206). The cam (209) is located on one side below the sieve plate (203). The protrusion of the cam (209) strikes the bottom surface of the sieve plate (203). The collection box (2010) is located below the sieve plate (203).

6. A color sorter for easily removing impurities from rice according to claim 4, characterized in that, The feed frame (2) is connected to the dust collection box (3) through the through groove (22), and the discharge pipe (21) is connected to the interior of the color sorter body (1).