Rotating Seed Loader for Selective Variety Delivery
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Solution Overview
Problem
Current seeding machines lack an efficient mechanism to selectively and sequentially deliver different varieties of seeds to specific locations in a field, limiting their ability to optimize seed placement based on traits like disease tolerance, drought resistance, and moisture levels.
Innovation Solution
A row unit with two seed meters and a rotating seed loader that can receive seeds from multiple sources, allowing for selective transfer and delivery of seeds to the seed delivery mechanism, enabling the planting of optimized seed varieties based on specific traits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single seed meter is used in conventional seeding machines, then the device complexity is low, but the adaptability to plant different seed varieties in specific locations is limited
Solution Approach 1:
The seed delivery system is segmented into multiple independent seed meters (first seed meter with first metering member, second seed meter with second metering member), each capable of delivering different seed varieties. The rotating seed loader is also segmented with multiple receptacles that can selectively receive seeds from different seed meters, enabling selective seed delivery to specific locations.
Solution Approach 2:
The rotating seed loader serves multiple functions: it receives seeds from the first seed meter, receives seeds from the second seed meter, and delivers seeds to the seed delivery mechanism. The receptacles on the rotating seed loader are universally capable of holding different seed types and transferring them to the delivery mechanism, providing multi-functionality that resolves the contradiction between adaptability and complexity.
2Adaptability or versatility
If multiple seed meters are added to enable selective seed delivery, then the adaptability improves, but the device complexity increases
Solution Approach 1:
The first seed meter and second seed meter are merged into a single row unit, sharing common components such as the rotating seed loader and seed delivery mechanism. The receptacles on the rotating seed loader are designed to receive seeds from either seed meter, merging the delivery path for both seed varieties into a single unified system, thereby reducing overall complexity.
Solution Approach 2:
The rotating seed loader provides dynamic seed selection capability through its rotation about an axis of rotation. The receptacles can be positioned to receive seeds from the first seed meter or the second seed meter depending on the rotational position, enabling dynamic adaptability without requiring separate fixed delivery paths for each seed variety.
3Productivity
If a rotating seed loader with multiple receptacles is used, then the productivity of selective seed delivery is improved, but the device complexity increases
Solution Approach 1:
The receptacles on the rotating seed loader are preliminarily positioned to receive seeds from either the first or second seed meter before delivery. The rotation mechanism pre-positions the appropriate receptacle at the correct location to receive seeds, enabling efficient selective delivery without complex real-time control mechanisms during the delivery process.
Data Source
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Figure 3~5
AI summary
Seeding machine (10) row unit (14) comprising first and second seed meters (22a, b) having metering members (24) for moving seeds (S1, S2) sequentially from first and second seed pools; and a seed loader (36, 136, 236) in communication with the first and second seed meters to selectively receive seeds from one or both of the first and second seed meters. The seed loader for transferring a seed in a seeding machine comprises: a housing (48, 148, 248) having a first meter opening (38, 40), a second meter opening (38, 40), and a delivery opening (56) spaced about an axis (B); a hub portion (46, 146, 246a, 246b) configured to rotate within the housing about the axis (B); and a sweeper (49, 149, 249a, 249b) extending from the hub portion, the sweeper including a paddle (50, 150, 250) extending generally away from the hub portion and configured to move from at least one of the first or second meter opening (38, 40) toward the delivery opening (56).