Multi-variety Seed Meter with FIFO Divider Walls
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Modern seed planters face challenges in maintaining precise seed depth placement and spacing accuracy, especially when operating at faster speeds, due to varying soil types and management zones within a field, leading to yield inconsistencies and seed variety mixing during planting.
Innovation Solution
A multi-variety seed meter with divider walls in the seed chamber ensures a first-in-first-out (FIFO) seed delivery system, using a seed transport member with cells that capture seeds and return extra seeds to the front of the meter, prioritizing earlier supplied seeds over later ones, thereby reducing mixing and maintaining seed variety purity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple seed varieties are supplied to the same seed meter, then planting flexibility and adaptability to different soil zones are improved, but seed variety mixing occurs during transition periods reducing seed purity
Solution Approach 1:
The seed chamber is segmented into a supply sump and a return sump using divider walls, creating separate zones for different seed varieties. This segmentation allows the seed meter to handle multiple varieties without mixing them during transitions, as each sump can be dedicated to a specific variety and seeds are delivered in a first-in-first-out manner.
2Quantity of substance
If seeds are delivered in a random or last-in-first-out manner, then seed chamber utilization is improved, but seed variety mixing increases during variety transitions
Solution Approach 1:
The system establishes a first-in-first-out delivery sequence through the return sump configuration, where seeds that enter the seed chamber first are the first to be delivered to the seed meter. This preliminary ordering of seed delivery prevents mixing during variety transitions while maintaining efficient use of the seed chamber volume.
3Productivity
If faster travel speeds are used during planting, then productivity and operating efficiency are improved, but seed depth placement precision and spacing accuracy deteriorate
Solution Approach 1:
The seed meter system dynamically manages seed flow through the return sump configuration, allowing seeds to be continuously supplied in an organized manner regardless of planting speed. This dynamic seed management ensures consistent seed delivery precision even at faster travel speeds by maintaining proper seed presentation to the metering mechanism.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances seed delivery accuracy and reduces mixing between seed varieties, ensuring that earlier supplied seeds are exhausted before later ones are picked up, thus maintaining the integrity of different seed types across varying soil and management zones, improving planting efficiency and yield consistency.
Implementation Method 1
a seed transport member arranged at least partially within the housing cavity, the seed transport member being configured to rotate within the housing cavity
Implementation Method 2
A ramp can return seed to the front of the seed meter where open cells of a seed transport member return to the seed chamber
Data Source
AI summary
A multi-variety seed meter can include a set of divider walls in a seed chamber to promote seed delivery on a first-in-first-out (FIFO) basis. This can be helpful to reduce the amount of seed variety mixing which may occur at transition points while planting in an agricultural field, since the first variety can be substantially exhausted from the seed meter before the second variety begins to get picked up by a seed transport member.