Seed metering device of corn planter
By incorporating anti-clogging and filtration mechanisms into the corn planter, and utilizing components such as spiral blades and filter screens, the clogging problem caused by seed coats and seeds entering the equipment together is solved. This achieves effective material separation and anti-clogging, improving the automation and energy efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-12
- Publication Date
- 2026-03-10
AI Technical Summary
In existing corn planters, the seed coat easily enters the equipment along with the seed and is blown out of the feed inlet when the wind blows, causing blockages and difficulties in material separation.
The design incorporates anti-clogging and filtration mechanisms, including a spiral blade tube, a rotating cover, a filter screen, and a dustproof plate. The spiral blade tube is driven to rotate by airflow, moving the material. The air separation chamber and filter screen are used for air separation and filtration to prevent clogging and separate the seed coat.
It prevents material blockage during corn planting and effectively separates seed coats, improving the automation level and energy efficiency of the equipment.
Smart Images

Figure CN223979146U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of corn planting, and in particular to a seed metering device for a corn planter. Background Technology
[0002] A seeder is a planting machine that sows crop seeds. Seeders used for a certain type or type of crop are often named after the crop, such as grain strip seeders, corn hill seeders, cotton seeders, and hay seeders.
[0003] Among existing corn planter seed metering devices, such as the corn planter seed metering device for preventing material blockage disclosed in utility model patent application number 202220043588.9, this utility model uses an external air compression device to deliver compressed air to the transition tube through a pipe interface, thereby agitating the corn seeds blocked in the transition tube. This avoids the corn seeds from becoming blocked in the transition tube. The sliding column is driven to move horizontally back and forth by a drive component, thereby intermittently blowing air into the transition tube. The degree of automation is high. In addition, the sliding column is driven to move by the rotation of the shaft and the abutment of the swing arm against the floating plate. No additional power components are required, resulting in low energy consumption.
[0004] However, during the corn planting process, the seed coat in the corn seed will enter the equipment along with the seed, and the wind will blow the seed coat out from the feed inlet. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a corn planter seed metering device that, by setting an anti-blocking mechanism and a filtering mechanism, can not only prevent material blockage during the corn planting process, but also separate the seed coat from the material.
[0006] This utility model discloses a corn planter seed metering device, which includes a feeding mechanism; it also includes an air intake mechanism, a filtering mechanism, an anti-clogging mechanism, and a dust prevention mechanism. The air intake mechanism is installed on the feeding mechanism, the filtering mechanism is installed on the feeding mechanism, the anti-clogging mechanism is installed on the air intake mechanism, and the dust prevention mechanism is installed on the air intake mechanism.
[0007] The feeding mechanism feeds the material, the air intake mechanism introduces air, the filtration mechanism filters the material, the anti-clogging mechanism prevents clogging, and the dust prevention mechanism prevents dust. The air intake mechanism drives the anti-clogging mechanism to rotate, the feeding mechanism puts in the material, the air pressure opens the dust prevention mechanism for air separation, and the filtration mechanism filters the material. Thus, during the corn planting process, not only can material blockage be prevented, but the seed coat in the material can also be separated.
[0008] Preferably, the feeding mechanism includes an air separation chamber and a feed inlet, with the feed inlet installed at the upper end of the air separation chamber; the material enters through the feed inlet and is air-separated by the air separation chamber.
[0009] Preferably, the air intake mechanism includes an air intake duct and a guide frame. The air intake duct is installed inside the air separator, and the guide frame is installed at the upper end of the air intake duct. Air is blown through the air intake duct and guided through the guide frame.
[0010] Preferably, the filtration mechanism includes a filter screen and multiple sets of slag bins. The filter screen is installed on the air separation chamber, and the multiple sets of slag bins are slidably installed inside the air separation chamber. Filtration is performed through the filter screen, and the seed coat is collected through the slag bins.
[0011] Preferably, the anti-clogging mechanism includes a spiral blade tube and a deflector cover. The spiral blade tube is rotatably mounted on the guide frame, and the deflector cover is mounted on the spiral blade tube. The airflow in the air inlet duct drives the spiral blade tube to rotate, which in turn drives the deflector cover to rotate. When the deflector cover rotates, it deflects the material to prevent clogging.
[0012] Preferably, the dustproof mechanism includes a plate frame and four sets of dustproof plates. The plate frame is mounted on the guide frame, and the four sets of dustproof plates are rotatably mounted on the plate frame by a spiral spring. Dust is prevented from entering by resetting the dustproof plates, and air is blown out by pushing open the dustproof plates with wind pressure.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the air intake mechanism drives the anti-blocking mechanism to rotate, the feeding mechanism puts in the material, the wind pressure opens the dust prevention mechanism for air separation, and the filtration mechanism filters the material. Thus, during the corn planting process, not only can the material be prevented from blocking, but the seed coat in the material can also be separated. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;
[0015] Figure 2 This is a frontal sectional isometric structural schematic diagram of this utility model;
[0016] Figure 3 This is a top-view sectional isometric structural schematic diagram of this utility model;
[0017] Figure 4 The anti-blocking mechanism of this utility model is in Figure 2 Axonometric enlarged structural schematic diagram of the frontal cross-section of section A in the middle;
[0018] The attached diagram is labeled as follows: 1. Feeding mechanism; 11. Air separation bin; 12. Feed inlet; 2. Air intake mechanism; 21. Air intake duct; 22. Flow guide frame; 3. Filtration mechanism; 31. Filter screen; 32. Slag bin; 4. Anti-clogging mechanism; 41. Spiral blade tube; 42. Actuating cover; 5. Dustproof mechanism; 51. Plate frame; 52. Dustproof plate. Detailed Implementation
[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1
[0020] like Figures 1 to 4 As shown, a corn planter seed metering device includes a feeding mechanism 1, an air intake mechanism 2, a filtering mechanism 3, an anti-clogging mechanism 4, and a dust prevention mechanism 5. The air intake mechanism 2 is installed on the feeding mechanism 1, the filtering mechanism 3 is installed on the feeding mechanism 1, the anti-clogging mechanism 4 is installed on the air intake mechanism 2, and the dust prevention mechanism 5 is installed on the air intake mechanism 2.
[0021] The feeding mechanism 1 feeds materials, the air intake mechanism 2 introduces air, the filtration mechanism 3 filters, the anti-clogging mechanism 4 prevents clogging, and the dust prevention mechanism 5 prevents dust.
[0022] The feeding mechanism 1 includes an air separation chamber 11 and a feed inlet 12, with the feed inlet 12 installed at the upper end of the air separation chamber 11;
[0023] The air intake mechanism 2 includes an air intake duct 21 and a guide frame 22. The air intake duct 21 is installed inside the air separator 11, and the guide frame 22 is installed at the upper end of the air intake duct 21.
[0024] The filtration mechanism 3 includes a filter screen 31 and multiple slag bins 32. The filter screen 31 is installed on the air separation chamber 11, and the multiple slag bins 32 are slidably installed inside the air separation chamber 11.
[0025] The anti-blocking mechanism 4 includes a spiral blade tube 41 and a deflector 42. The spiral blade tube 41 is rotatably mounted on the guide frame 22, and the deflector 42 is mounted on the spiral blade tube 41.
[0026] The dustproof mechanism 5 includes a plate frame 51 and four sets of dustproof plates 52. The plate frame 51 is mounted on the flow guide frame 22, and the four sets of dustproof plates 52 are rotatably mounted on the plate frame 51 by a spiral spring.
[0027] Air is blown through the air inlet duct 21 connected to the blower, and guided by the guide frame 22. The airflow in the air inlet duct 21 drives the spiral blade tube 41, which in turn drives the agitator shroud 42 to rotate. When the agitator shroud 42 rotates, it agitates the material to prevent blockage. The material enters through the feed inlet 12, is air-separated through the air separation chamber 11, and dust is prevented from entering by the reset of the dustproof plate 52. The dustproof plate 52 is opened by the air pressure to blow air through the filter screen 31, and the seed coat is collected through the slag bin 32. Thus, during the corn planting process, not only is material blockage prevented, but the seed coat in the material is also separated.
[0028] like Figures 1 to 4 As shown, this utility model discloses a corn planter seed metering device. During operation, it connects to a blower through an air inlet duct 21 for blowing air, guides the airflow through a guide frame 22, and drives the spiral blade tube 41 through the air inlet duct 21 to rotate the agitator cover 42. When the agitator cover 42 rotates, it agitates the material to prevent blockage. The material enters through the feed inlet 12, is air-separated through the air separation chamber 11, and is prevented from entering by the reset of the dustproof plate 52. The dustproof plate 52 is opened by air pressure for blowing air, and the material is filtered through the filter screen 31. The seed coat is collected through the slag bin 32.
[0029] The main function achieved by this utility model is: during the corn planting process, by setting up an anti-blocking mechanism and a filtering mechanism, not only can the material be prevented from blocking, but the seed coat in the material can also be separated.
[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A corn planter seed meter comprising a feed mechanism (1); characterized in that, It also includes air inlet mechanism (2), filter mechanism (3), anti-blocking mechanism (4) and dustproof mechanism (5), air inlet mechanism (2) is installed on the feeding mechanism (1), filter mechanism (3) is installed on the feeding mechanism (1), anti-blocking mechanism (4) is installed on the air inlet mechanism (2), dustproof mechanism (5) is installed on the air inlet mechanism (2); The feeding mechanism (1) feeds, the air inlet mechanism (2) feeds air, the filter mechanism (3) filters, the anti-blocking mechanism (4) prevents blocking, and the dustproof mechanism (5) prevents dust.
2. A corn planter meter as claimed in claim 1 wherein, The feeding mechanism (1) includes a winnowing bin (11) and a feeding port (12), and the feeding port (12) is installed on the upper end of the winnowing bin (11).
3. A corn planter meter as claimed in claim 2 wherein, The air inlet mechanism (2) includes an air inlet channel (21) and a flow guide frame (22), the air inlet channel (21) is installed in the winnowing bin (11), and the flow guide frame (22) is installed on the upper end of the air inlet channel (21).
4. A corn planter meter as claimed in claim 2 wherein, The filter mechanism (3) includes a filter screen (31) and multiple groups of slag bins (32), the filter screen (31) is installed on the winnowing bin (11), and the multiple groups of slag bins (32) are slidingly installed in the winnowing bin (11).
5. A corn planter meter as set forth in claim 3, wherein, The anti-blocking mechanism (4) includes a spiral blade pipe (41) and a stirring cover (42), the spiral blade pipe (41) is rotatably installed on the flow guide frame (22), and the stirring cover (42) is installed on the spiral blade pipe (41).
6. A corn planter meter as set forth in claim 3, wherein, The dustproof mechanism (5) includes a plate frame (51) and four groups of dustproof plates (52), the plate frame (51) is installed on the flow guide frame (22), and the four groups of dustproof plates (52) are rotatably installed on the plate frame (51) through vortex springs.
Citation Information
Patent Citations
Blanking anti-blocking seed-metering device of corn planter
CN217407027U