Coarse cereal color sorter
By setting up a sorting platform and screen at the discharge port of the grain color sorter, the automatic screening and temporary storage of small particles are achieved, solving the problem of small particles not being screened out after color sorting and improving work efficiency and production benefits.
Patent Information
- Application Number
- CN202520258808.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-03-10
- Estimated Expiration
- 2035-02-18
AI Technical Summary
In existing technologies, small particulate materials are not effectively screened out after color sorting by color sorters, resulting in a large workload and low efficiency for subsequent manual or machine quality inspection.
A sorting platform is set up at the discharge port of the grain color sorter, including a screening area and a sorting area. By using the cooperation of the screen and the sorting platform, small particles that do not meet the size requirements are automatically screened by the weight of the material itself and the inclined guiding surface of the screen. The material is temporarily stored in the sorting area, and qualified materials enter the sorting area for manual or machine inspection.
It reduces the workload of manual or machine screening, improves work efficiency, reduces material waste, and enhances screening effect and production benefits.
Smart Images

Figure CN223980808U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sorting technology, specifically relating to a grain color sorter. Background Technology
[0002] A grain color sorter is a machine that uses photoelectric technology to identify differences in the optical properties of materials, automatically sorting out particles of different colors to improve material quality and remove impurities. It is mainly used for color sorting grains and cereals, but can also be used for color sorting granular materials such as medicinal herbs. It can identify and remove discolored particles, impurities, and small stones from grains and medicinal herbs, thereby improving the quality of grains and medicinal herbs.
[0003] Color sorting is usually the first step in the processing. During color sorting, impurities are first screened out, removing large particles and foreign objects to ensure the purity of the materials (such as grains and medicinal herbs). Then, a color sorter identifies and grades the materials by color, removing those that do not meet the standards. After color sorting, manual or machine quality inspection is performed to ensure the sorting effect meets requirements. However, the manual or machine quality inspection only removes some impurities and particles that do not meet the color requirements. Materials that meet the color requirements but are not the size requirements are not screened. Therefore, this increases the workload of manual or machine quality inspection and reduces work efficiency. Utility Model Content
[0004] This utility model discloses a grain color sorter, which aims to solve the technical problem in the prior art where small particles are not screened out after color sorting, resulting in increased workload and low efficiency of subsequent manual or machine quality inspection.
[0005] To solve the aforementioned technical problems, the present invention adopts the following technical solution:
[0006] A grain color sorter includes a sorting platform located at the discharge port of the grain color sorter. The sorting platform includes a screening section and a sorting section. The screening section is located below the discharge port of the grain color sorter, and a screen for screening small particles is provided on the screening section. The screen is inclined and arranged on the sorting platform to form a guide surface for discharging materials to the sorting section.
[0007] After adopting this technical solution, a sorting platform is set up at the discharge port. The material after color sorting enters the sorting platform through the discharge port and first comes into contact with the screen of the screening section (the screen of the screening section can be placed directly on the sorting area or connected to the sorting platform). Under the combined action of its own gravity and the inclined screen, the material moves along the guide surface to the sorting area. During this movement, small particles that do not meet the size requirements enter the space formed by the screen holes in the screen and are temporarily stored. Qualified materials enter the sorting area for manual or machine quality inspection. After sorting, the screen can be removed and the sorted small particles can be cleaned.
[0008] This device allows materials that have undergone color sorting to be directly screened by their own weight and an inclined screen before being sorted. Small particles that do not meet the size requirements are screened directly, ensuring that all materials entering the sorting area meet the size requirements. Therefore, it reduces the workload of manual or machine screening and improves work efficiency.
[0009] The screen is rectangular and is rotatably connected to the sorting platform. The size of the screen matches the size of the sorting platform.
[0010] By adopting this technical solution, the rectangular screen is matched to the shape and structure of the sorting platform, tilting to cover the platform's planar structure. This ensures that the material leaving the outlet is fully contacted by the screen, preventing issues such as material falling directly into the space meant for temporary storage of small particles due to a mismatch between the screen's size and the platform's shape, thus avoiding waste. Therefore, the rectangular screen's fit with the sorting platform's shape and structure improves the material screening effect.
[0011] The sorting platform includes a sorting table, and protective plates are provided on three adjacent sides of the sorting table. The protective plates on opposite sides are first baffles, and the two first baffles are connected by a second baffle. The screen is rotatably connected to the second baffle.
[0012] After adopting this technical solution, protective plates are installed on three sides of the sorting table. Firstly, this protects the materials on the sorting table, preventing them from falling directly to the ground or other areas. Materials on the ground or other areas must be cleaned and disinfected before reuse or discarded, resulting in wasted time and costs. Secondly, if one end does not have a protective plate, after sorting, the sorted materials can be directly pushed into the collection device or conveyed to the next processing step via a conveyor belt. Therefore, by installing first and second baffles at each end of the sorting table, material waste is reduced, production time is saved, and production efficiency is improved. Furthermore, it facilitates the transfer of materials to subsequent processes, making operation relatively simple.
[0013] The height of the two first baffles gradually decreases from one side to the other.
[0014] After adopting this technical solution, staff members can stand in order of height on both sides of the sorting table to sort materials. The height of the first baffle gradually decreases, which conforms to the human sorting posture. This makes it more comfortable for staff members to sort the already screened materials through the sorting platform, improving human comfort and facilitating the subsequent transfer of the screened materials.
[0015] The discharge port is provided with a magnetic suction part for removing metal impurities. The magnetic suction part includes a first magnet and a second magnet respectively disposed on the inner wall and the outer wall of the discharge port.
[0016] With this technical solution, the magnetic adsorption unit can directly adsorb metal impurities in the material passing through the discharge port. Removing metal impurities improves the purity of the material, reduces the difficulty and workload of subsequent screening, and increases sorting efficiency. The first and second magnets are mutually attracted and fixed to the discharge port, allowing for compatibility with discharge ports made of any material, thus offering good practicality.
[0017] The sorting platform is equipped with a conical collection trough, which is located below the screen. The bottom of the conical collection trough has an outlet, which is connected to a collection device.
[0018] With this technical solution, the screened small particles directly enter the collection device below the conical collection trough. There is no need to rotate the screen or perform manual or other methods to collect the small particles separately. This method is simple and convenient to operate, and allows for simultaneous screening and collection. Therefore, it improves the collection efficiency of small particles.
[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0020] (1) By using screens, sorting platforms, etc., materials that do not meet size requirements can be directly screened by the weight of the material itself and the inclination of the screen after color sorting by the color sorter, reducing the difficulty of subsequent screening and improving work efficiency.
[0021] (2) A rectangular screen is used. The rectangular screen is matched with the shape and structure of the sorting platform, which improves the screening effect of materials.
[0022] (3) Use first baffles, second baffles, etc. to protect the material, save screening time and reduce consumption costs.
[0023] (4) The first baffle with a gradually decreasing height is adopted to conform to the human screening posture and improve the working comfort of the staff.
[0024] (5) The first magnet and the second magnet can not only adsorb the metal impurities in the material, reducing the difficulty of subsequent sorting, but also cooperate with the discharge port made of any material, adsorbing on the discharge port, thus improving the practicality of the device.
[0025] (6) Using a conical collection trough, etc., small particles of material after screening can be collected automatically, and the operation is simple and convenient. Attached Figure Description
[0026] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:
[0027] Figure 1 This utility model provides a structural schematic diagram of a grain color sorter;
[0028] Figure 2 This is a top view of the structure of the screen and sorting platform.
[0029] Figure Labels
[0030] 1-Grain color sorter, 2-First magnet, 3-Second magnet, 4-Screen, 5-Second baffle, 6-Conical collection trough, 7-Collection box, 8-Sorting table, 9-First baffle, 10-Base, 11-Hinge rod, 12-Hinge ring. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments and accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0032] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0033] The following is combined with Figures 1-2 This utility model will be described in detail.
[0034] Example 1
[0035] A grain color sorter, such as Figure 1 and Figure 2 As shown, a sorting platform is provided at the discharge port of the grain color sorter 1. The sorting platform includes a screening section and a sorting area. The screening section is located below the discharge port of the grain color sorter 1, and a screen 4 for screening small particles is provided on the screening section. The screen 4 is inclinedly arranged on the sorting platform and forms a guide surface for discharging materials to the sorting area.
[0036] In this embodiment, the mesh size of the sieve 4 is 40-80 mesh, and a 60-mesh sieve 4 is preferred in this embodiment, which is suitable for screening medium-sized Chinese medicinal materials.
[0037] In this embodiment, as Figure 1 As shown, the screening area and the sorting area account for 1 / 3 and 2 / 3 of the length of the sorting platform, respectively.
[0038] In this embodiment, as Figure 1 As shown, the angle between the guide surface and the sorting platform is 20°-30°, preferably 30°.
[0039] A sorting platform is set at the discharge port. The color-sorted material enters the sorting platform through the discharge port and first comes into contact with the screen 4 of the screening section (the screen 4 of the screening section can be placed directly on the sorting area or connected to the sorting platform. In this embodiment, the screen 4 is rotatably connected to the sorting platform). Under the combined action of its own gravity and the inclined screen 4, the material moves along the guide surface to the sorting area. During this movement, small particles that do not meet the size requirements enter the space formed by the screen holes of the screen 4 and are temporarily stored. Qualified materials enter the sorting area for manual or machine quality inspection. After sorting, the screen 4 can be removed to clean the sorted small particles.
[0040] This device allows color-sorted materials to be directly screened by their own gravity and the inclined screen 4 before being sorted, so that small particles that do not meet the size requirements are screened directly. This ensures that all materials entering the sorting area meet the size requirements, thereby reducing the workload of manual or machine screening and improving work efficiency.
[0041] In this embodiment, the screen 4 is a rectangular screen 4, which is rotatably connected to the sorting platform, and the size of the screen 4 matches the size of the sorting platform.
[0042] In this embodiment, the screen 4 is rotatably connected to the sorting platform via a hinge rod 11. The sorting platform is provided with a base 10 connected to the hinge rod 11, and the screen 4 is provided with a hinge ring 12 rotatably connected to the hinge rod 11.
[0043] In this embodiment, the hinge ring 12 and the screen 4 are integrally formed by welding.
[0044] In this embodiment, the size of the screen 4 is equal to the width of the sorting platform.
[0045] Screen 4 is rectangular in shape and its shape and structure are compatible with the sorting platform, such as... Figure 2 As shown, the planar structure of the sorting platform is tilted to ensure that the material moving out of the discharge port is fully contacted by the screen 4. This avoids problems such as some material falling directly into the space where small particles should be temporarily stored due to a mismatch between the size and shape of the screen 4 and the sorting platform, resulting in waste. Therefore, the rectangular screen 4, combined with the shape and structure of the sorting platform, improves the screening effect of the material.
[0046] In this embodiment, the sorting platform includes a sorting table 8, and protective plates are provided on three adjacent sides of the sorting table 8. The protective plates on opposite sides are first baffles 9, and the two first baffles 9 are connected by a second baffle 5. The screen 4 is rotatably connected to the second baffle 5.
[0047] In this embodiment, the two first baffles 9 and the second baffle 5, along with the top surface of the sorting table 8, form a receiving groove, such as... Figure 1 As shown.
[0048] In this embodiment, as Figure 1 and Figure 2 As shown, the screen 4 is hinged to the second baffle 5 via the hinge rod 11, and the base 10 is bolted to the top of the second baffle 5. The screen 4 is placed in the receiving groove formed by the two first baffles 9, the second baffle 5 and the sorting table 8, and one end of the screen 4 is in contact with the tabletop of the sorting table 8.
[0049] In this embodiment, the sorting table 8, the first baffle 9, and the second baffle 5 are all made of stainless steel. The first baffle 9 and the second baffle 5 are integrally formed with the sorting table 8 by welding. Stainless steel has a clean and aesthetically pleasing appearance, is corrosion-resistant, high-temperature resistant, and has a long service life, reducing the cost associated with replacing equipment and thus saving costs. Furthermore, lightweight stainless steel can be used, making the overall device lighter and easier to handle.
[0050] In this embodiment, the sorting table 8 has a length of 1.5m, a width of 1m, and a height of 1.1m.
[0051] In this embodiment, the screen 4 has a width of 1m and a length of 0.58m. In other embodiments, to prevent material from falling off the screen 4, side plates can be further provided on the side walls of the screen 4.
[0052] Protective plates are installed on three sides of the top surface of the sorting table 8. Firstly, these plates protect the materials on the sorting table 8, preventing them from falling directly to the ground or other areas. Materials on the ground or other areas must be cleaned and disinfected before reuse or discarded, resulting in wasted time and costs. Secondly, since one end is not equipped with a protective plate, after sorting, the sorted materials can be directly pushed into the collection device or conveyed to the next processing step via a conveyor belt. Therefore, the arrangement of the first baffle 9 and the second baffle 5 at each end of the sorting table 8 reduces material waste, saves production time, and improves production efficiency. It also facilitates the transfer of materials to subsequent processes, making operation relatively simple.
[0053] In this embodiment, the height of the two first baffles 9 gradually decreases from one side to the other.
[0054] In this embodiment, the height difference of the first baffle 9 is 29cm, and the height of the second baffle 5 is 29cm.
[0055] On both sides of the sorting table 8, workers can stand in order of height to sort materials. The height of the first baffle 9 gradually decreases, conforming to the human sorting posture, making it more comfortable for workers to sort the already screened materials through the sorting platform, thus improving human comfort. At the same time, it facilitates the transfer of materials.
[0056] In this embodiment, the discharge port is provided with a magnetic suction part for removing metal impurities. The magnetic suction part includes a first magnet 2 and a second magnet 3 respectively disposed on the inner wall and the outer wall of the discharge port.
[0057] In this embodiment, four of the first magnet 2 and four of the second magnet 3 are provided.
[0058] In this embodiment, both the first magnet 2 and the second magnet 3 are planar structures, and the first magnet 2 is adsorbed on the inner wall of the discharge port, while the second magnet 3 is adsorbed on the outer wall of the discharge port.
[0059] The magnetic adsorption unit can directly adsorb metal impurities in the material passing through the discharge port. Removing metal impurities improves the purity of the material, reduces the difficulty and workload of subsequent screening, and increases sorting efficiency. The first magnet 2 and the second magnet 3 are mutually attracted and fixed to the discharge port, and can be used with discharge ports made of any material, thus offering good practicality.
[0060] The specific method of using this utility model is as follows:
[0061] Reference Figures 1-2 When using this device, first place the sorting platform below the discharge port, attach the four sets of first magnets 2 and second magnets 3 to the inner and outer side walls of the discharge port respectively, and then place the screen plate inside the two first baffles 9 to block the tabletop of the sorting table 8 in cooperation with the first baffles 9.
[0062] After preparation, the discharge port of the grain color sorter 1 is opened intermittently (taking manual subsequent screening as an example). Metal impurities in the material sorted by the color sorter are first attracted by the first magnet 2, removing the metal impurities. The material after the first metal impurity screening falls naturally and contacts the screen 4. Because the screen 4 and the sorting table 8 are inclined to form a guide surface, the material, during contact with the screen 4, can roll along the inclined direction of the screen 4 to the sorting area due to its own weight and the inclination of the screen 4. Small particles that do not meet the size requirements will automatically fall into the space formed between the screen 4, the sorting table 8, the first baffle 9, and the second baffle 5 and be temporarily stored. Materials that meet the size requirements will automatically enter the sorting area, thus automatically screening materials that meet the size requirements and small particles that do not meet the size requirements. Materials that meet the size requirements are further improved in quality through manual screening in the sorting area. After the screening structure is completed, first clean the materials that meet the requirements on the sorting table 8. After cleaning, rotate the screen 4 to release the space temporarily stored small particles formed by the screen 4 and the sorting table 8. Clean the small particles and then put the screen 4 back in its original position.
[0063] Example 2
[0064] This embodiment is basically the same as Embodiment 1, except that: in this embodiment, as shown in the example... Figure 1 As shown, a conical collection trough 6 is provided on the sorting platform. The collection trough is located below the screen 4. An outlet is provided at the bottom of the conical collection trough 6, and the outlet is connected to a collection device.
[0065] In this embodiment, the sorting table 8 is provided with a circular through hole, the conical collection groove 6 is welded to the side wall of the circular through hole, the outlet is sealed with a pipe, the collection device is a collection box 7, and the pipe is directly inserted into the collection box 7.
[0066] The small particles separated by screening pass directly into the collection device below the conical collection trough 6. This eliminates the need for rotating the screen 4 and subsequent manual or other methods to collect the small particles separately. The process is simple and convenient, allowing for simultaneous screening and collection. Therefore, it improves the collection efficiency of small particles.
[0067] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A machine for sorting grains, characterized in that: The application relates to a sorting platform arranged at the discharge port of a grain color sorter (1), which comprises a screening area and a sorting area, the screening area is arranged below the discharge port of the grain color sorter (1), a screen (4) for screening small-particle materials is arranged on the screening area, the screen (4) is arranged obliquely on the sorting platform and forms a guide surface for discharging materials to the sorting area.
2. The machine according to claim 1, characterized in that: The screen (4) is a rectangular screen (4), the screen (4) is rotationally connected with the sorting platform, and the size of the screen (4) is matched with the size of the sorting platform.
3. The machine according to claim 2, characterized in that: The sorting platform comprises a sorting table (8), three adjacent sides of the sorting table (8) are provided with protective plates, the protective plates on the opposite sides are first baffles (9), the two first baffles (9) are connected through a second baffle (5), and the screen (4) is rotationally connected with the second baffle (5).
4. The machine according to claim 3, characterized in that: The height of the two first baffles (9) gradually decreases from one side to the other side.
5. A machine for colour sorting of grains according to any one of claims 1 to 4, characterised in that: A magnetic part for removing metal impurities is arranged on the discharge port, the magnetic part comprises first magnets (2) and second magnets (3) arranged on the inner wall and the outer wall of the discharge port respectively.
6. A machine for colour sorting of grains according to any one of claims 1 to 4, characterised in that: A conical collecting groove (6) is arranged on the sorting platform, the collecting groove is arranged below the screen (4), the bottom of the conical collecting groove (6) is provided with an outlet, and a collecting device is connected to the outlet.