A grain color selection pre-impurity separation feed device
By combining quantitative components and magnetic rods with a fan filtration system, the problem of insufficient accuracy in grain impurity separation and feeding devices during transportation has been solved, achieving precise grain delivery and efficient impurity removal, thus improving transportation efficiency and purity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN SHENGTE GRAIN IND CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-12
AI Technical Summary
Existing grain impurity separation and feeding devices cannot guarantee precise control and uniform speed transportation during grain transportation, which easily leads to spillage, affects transportation efficiency, and causes grain waste.
The system employs a quantitative component and a magnetic rod combined with a fan filtration system. The grain is quantitatively conveyed by the fan blades and rotating rods. The magnetic rods adsorb metallic impurities, the fan blows out light impurities, the auger blades transport the grain to the filter cylinder for filtration, and the trapezoidal plate outputs pure grain.
This has improved the accuracy and purity of grain transportation, reduced spillage, increased transportation efficiency, and lowered labor maintenance costs.
Smart Images

Figure CN224346407U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of impurity separation technology, and in particular to a feeding device for impurity separation before grain color sorting. Background Technology
[0002] Grain color sorting impurity separation feeding devices play a vital role in the grain processing industry, primarily used to remove impurities from grains and improve their purity. They are widely applied in grain processing, storage, and other industries. Traditional impurity separation feeding devices are based on screening and air separation principles, achieving impurity separation through steps such as vibration screening and air blowing. Most existing impurity separation feeding devices employ a fixed structure design, which, while meeting basic impurity separation requirements, has certain shortcomings in grain transportation accuracy.
[0003] Existing impurity separation and feeding devices typically employ a fixed structure design, where the separation system consists of multiple fixed components connected to the conveying module via pipelines. Some devices use only a single filtration device, which cannot filter out the vast majority of impurities. Some devices are also equipped with buffer devices to stabilize the grain conveying flow. After prolonged use, the equipment requires manual disassembly for regular cleaning or maintenance.
[0004] Traditional equipment struggles to ensure precise control and uniform transport of grain during transportation, leading to spillage, waste, and reduced efficiency. Therefore, an improved structural design is proposed to address these issues and facilitate precise transport. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a grain impurity separation and feeding device before color sorting, which aims to improve the existing separation and feeding devices that are unable to guarantee accurate control of grain quantity and uniform transportation, are prone to spillage, cause grain waste, and affect transportation efficiency.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a grain color sorting impurity separation feeding device, comprising a feeding pipe, wherein a connecting pipe is fixedly connected to the bottom of the feeding pipe, and a quantitative component is provided inside the connecting pipe.
[0007] The quantitative component includes several fan blades and a rotating rod. The outer wall of the rotating rod is rotatably connected to the inside of a connecting tube. The fan blades are slidably connected to the inside of the connecting tube. Springs are provided at both ends of the fan blades. One end of the spring is fixedly connected to the inside of the rotating rod. A motor is fixedly connected to the outer wall of the connecting tube. The output end of the motor is fixedly connected to one end of the rotating rod.
[0008] Furthermore, a magnetic suction rod is attached to the inner wall of the feed pipe, and a second connecting pipe is fixedly connected to the bottom of the first connecting pipe. A fan and an outlet pipe are fixedly connected to the inside of the second connecting pipe from left to right, and a filter assembly is provided on one side of the outer wall of the second connecting pipe.
[0009] Furthermore, the filter assembly includes a filter cylinder, the outer wall of which is rotatably connected to the inside of the connecting pipe II. A rotating rod II is fixedly connected to the inner wall of the filter cylinder, and an auger blade is fixedly connected to the outer wall of the rotating rod II. A motor II is fixedly connected to the outer wall of the connecting pipe II, and the output end of the motor II is fixedly connected to one end of the rotating rod II. A bearing is fixedly connected to one end of the filter cylinder, and a protective cover is fixedly connected to the outer wall of the connecting pipe II. A trapezoidal plate is fixedly connected to the bottom of the protective cover.
[0010] Furthermore, the rotating rod is provided with a sliding groove for the fan blades to slide inside.
[0011] Furthermore, the second connecting pipe is provided with a sliding groove for the filter cylinder and the second rotating rod to slide.
[0012] Furthermore, a base is fixedly connected to the lower part of the second connecting pipe.
[0013] Furthermore, the connecting pipe is provided with a groove for the rotating rod to slide.
[0014] Furthermore, the protective cover is provided with a sliding groove for the filter cartridge to slide.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, the starting motor drives the rotating rod to rotate, which indirectly drives the fan blades to rotate. Grooves are formed between the fan blades to ensure that the amount of grain transported each time is equal and to transport the grain to the connecting pipe. The spring ensures that the fan blades can fit tightly with the inside of the connecting pipe, preventing grain from spilling during transportation and improving the accuracy of grain transportation.
[0017] 2. In this utility model, a magnetic suction rod is used to adsorb metallic impurities in the feed pipe. After passing through the fan in the connecting pipe, lighter impurities are blown out from the outlet pipe. At the same time, the grain at the bottom of the connecting pipe is transported to the filter cylinder for filtration by the auger blade under the rotation of the rotating rod driven by the motor. The grain is transported out from the bottom through the trapezoidal plate, while larger impurities remain in the filter cylinder. This effectively removes metallic impurities and light to medium impurities from the grain, improving the purity of the grain. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of a grain color sorting impurity separation and feeding device proposed in this utility model.
[0019] Figure 2This is a schematic diagram of the two-part structure of the connecting pipe of the grain color sorting impurity separation and feeding device proposed in this utility model.
[0020] Figure 3 This is a schematic diagram of a portion of the connecting pipe of a grain color sorting impurity separation and feeding device proposed in this utility model.
[0021] Figure 4 This is a schematic diagram of the protective cover part of the grain color sorting impurity separation feeding device proposed in this utility model;
[0022] Figure 5 This is a schematic diagram of the filter cylinder section of a grain color sorting impurity separation and feeding device proposed in this utility model.
[0023] Legend:
[0024] 1. Feed pipe; 2. Magnetic rod; 3. Connecting pipe one; 4. Motor one; 5. Filter cartridge; 6. Fan; 7. Outlet pipe; 8. Base; 9. Motor two; 10. Protective cover; 11. Trapezoidal plate; 12. Bearing; 13. Fan blade; 14. Rotating rod one; 15. Connecting pipe two; 16. Spring; 17. Screwdriver blade; 18. Rotating rod two. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.
[0026] Reference Figures 1-3 An embodiment of this utility model is provided: a grain color sorting impurity separation feeding device, including a feeding pipe 1, the feeding pipe 1 is hollow inside and can temporarily store grain, a connecting pipe 3 is fixedly connected to the bottom of the feeding pipe 1, the connecting pipe 3 cooperates with the fan blade 13 to control the feeding speed, and a quantitative component is provided inside the connecting pipe 3.
[0027] The metering component includes several fan blades 13 and a rotating rod 14. The outer wall of the rotating rod 14 is rotatably connected to the inside of the connecting tube 3. The rotating rod 14 rotates with the motor 4, driving the fan blades 13 to rotate. The fan blades 13 are slidably connected to the inside of the connecting tube 3. Grooves are formed between the several fan blades 13 to ensure uniform feeding speed. Springs 16 are provided at both ends inside the several fan blades 13. The springs 16 have elasticity to ensure that the fan blades 13 are tightly fitted to the inside of the connecting tube 3. One end of the spring 16 is fixedly connected to the inside of the rotating rod 14. The motor 4 is fixedly connected to the outer wall of the connecting tube 3. The motor 4 is an existing device and will not be described in detail here. The output end of the motor 4 is fixedly connected to one end of the rotating rod 14.
[0028] Reference Figure 4 and Figure 5 A magnetic rod 2 is attached to the inner wall of the feed pipe 1. The magnetic rod 2 is an existing device and will not be described in detail here. A connecting pipe 2 15 is fixedly connected to the bottom of the connecting pipe 1 3. The connecting pipe 2 15 is hollow inside and serves to transport grain. A blower 6 and an outlet pipe 7 are fixedly connected from left to right inside the connecting pipe 2 15. The blower 6 is an existing device and will not be described in detail here. The outlet pipe 7 is hollow inside and transports impurities caused by the blower 6 to the outside of the device. A filter assembly is set on one side of the outer wall of the connecting pipe 2 15. The filter assembly includes a filter cylinder 5, which performs the filtering function, filtering the grain out through the holes. The outer wall of the filter cylinder 5 is rotatably connected to the inside of the connecting pipe 2 15. A rotating rod 2 18 is fixedly connected to the inner wall of the filter cylinder 5. The rotating rod 2 18 rotates in conjunction with the motor 2 9, driving the filter cylinder 5 to rotate. An auger blade 17 is fixedly connected to the outer wall of the rotating rod 2 18. The auger blade 17 is... The existing device, which will not be described in detail here, has a motor 9 fixedly connected to the outer wall of the connecting pipe 2 15. The output end of the motor 9 is fixedly connected to one end of the rotating rod 2 18. A bearing 12 is fixedly connected to one end of the filter cylinder 5. The bearing 12 is an existing device, which will not be described in detail here. A protective cover 10 is fixedly connected to the outer wall of the connecting pipe 2 15. The protective cover 10 ensures that the filtration process is not disturbed by the outside world and plays a protective role. A trapezoidal plate 11 is fixedly connected to the bottom of the protective cover 10. The trapezoidal plate 11 is hollow inside and transports the filtered grain. The rotating rod 1 14 has a sliding groove for the fan blade 13 to slide inside. The connecting pipe 2 15 has a sliding groove for the filter cylinder 5 and the rotating rod 2 18 to slide inside. A base 8 is fixedly connected to the bottom of the connecting pipe 2 15. The connecting pipe 1 3 has a sliding groove for the rotating rod 1 14 to slide inside. The protective cover 10 has a sliding groove for the filter cylinder 5 to slide inside.
[0029] Working principle: When a grain color sorting impurity separation feeding device is needed, the grain is poured into the feed pipe 1. The motor 4 is started to drive the rotating rod 14 to rotate, which indirectly drives the fan blades 13 to rotate. Grooves are formed between the fan blades 13 to ensure that the amount of grain transported each time is equal. The grain is then transported to the connecting pipe 15. The spring 16 ensures that the fan blades 13 can fit tightly with the inside of the connecting pipe 13 to prevent grain from spilling during transportation. When the grain enters the feed pipe 1, the internal metal impurities are attracted by the magnetic rod 2. After passing through the fan 6 in the connecting pipe 15, the lighter impurities are blown out from the outlet pipe 7. At the same time, the grain at the bottom of the connecting pipe 15 is conveyed to the filter cylinder 5 for filtration by the auger blades 17 under the rotation of the rotating rod 18 driven by the motor 9. The grain is transported out from the bottom through the trapezoidal plate 11, while the larger impurities remain in the filter cylinder 5. This achieves automated separation feeding, improves work efficiency, and reduces labor costs.
[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A grain color sorting impurity separation feeding device, comprising a feed pipe (1), characterized in that: The bottom of the feed pipe (1) is fixedly connected to a connecting pipe (3), and a metering component is provided inside the connecting pipe (3); The quantitative component includes several fan blades (13) and a rotating rod (14). The outer wall of the rotating rod (14) is rotatably connected to the inside of the connecting tube (3). The fan blades (13) are slidably connected to the inside of the connecting tube (3). Springs (16) are provided at both ends of the inside of the several fan blades (13). One end of the spring (16) is fixedly connected to the inside of the rotating rod (14). A motor (4) is fixedly connected to the outer wall of the connecting tube (3). The output end of the motor (4) is fixedly connected to one end of the rotating rod (14).
2. The grain color sorting impurity separation feeding device according to claim 1, characterized in that: The inner wall of the feed pipe (1) is fitted with a magnetic suction rod (2), and the bottom of the first connecting pipe (3) is fixedly connected to the second connecting pipe (15). The second connecting pipe (15) is fixedly connected to a fan (6) and an outlet pipe (7) from left to right inside. A filter assembly is provided on one side of the outer wall of the second connecting pipe (15).
3. The grain color sorting impurity separation feeding device according to claim 2, characterized in that: The filter assembly includes a filter cylinder (5), the outer wall of which is rotatably connected to the inside of the connecting pipe (15), a rotating rod (18) is fixedly connected to the inner wall of the filter cylinder (5), an auger blade (17) is fixedly connected to the outer wall of the rotating rod (18), a motor (9) is fixedly connected to the outer wall of the connecting pipe (15), the output end of the motor (9) is fixedly connected to one end of the rotating rod (18), a bearing (12) is fixedly connected to one end of the filter cylinder (5), a protective cover (10) is fixedly connected to the outer wall of the connecting pipe (15), and a trapezoidal plate (11) is fixedly connected to the bottom of the protective cover (10).
4. The grain color sorting impurity separation feeding device according to claim 1, characterized in that: The rotating rod (14) has a sliding groove inside for the fan blade (13) to slide.
5. The grain color sorting impurity separation feeding device according to claim 3, characterized in that: The connecting pipe 2 (15) is provided with a sliding groove for the filter cylinder (5) and the rotating rod 2 (18) to slide.
6. The grain color sorting impurity separation feeding device according to claim 2, characterized in that: A base (8) is fixedly connected below the second connecting pipe (15).
7. The grain color sorting impurity separation feeding device according to claim 1, characterized in that: The connecting pipe (3) is provided with a sliding groove for the rotating rod (14) to slide.
8. The grain color sorting impurity separation feeding device according to claim 3, characterized in that: The protective cover (10) has a sliding groove inside for the filter cylinder (5) to slide.