Seed Metering Baffle for Precision Plot Breeding
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Solution Overview
Problem
Existing plot breeding methods face inefficiencies and poor precision due to manual sowing and resource wastage, with existing seed metering devices unable to achieve accurate control of seed spacing.
Innovation Solution
A seed-on-paper-band packaging machine is developed, featuring a seed metering baffle and a seed-on band drawing mechanism, which uniformly packages seeds on degradable paper bands, ensuring accurate seed spacing and reducing missed sowing, replanting, and seed loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If air-suction-type seed metering device is used, then seed metering precision is improved, but seed spacing control precision deteriorates due to inertia during seed falling
Solution Approach 1:
The patent introduces a seed metering baffle that acts as a counterbalancing element to offset the inertial forces affecting seed trajectory. The baffle creates a controlled environment where seeds are metered without being subjected to the full impact of rotational inertia, thereby maintaining both metering precision and spacing control precision.
Solution Approach 2:
The seed metering baffle performs preliminary action by pre-positioning and stabilizing seeds before they are discharged onto the paper band. This preliminary stabilization ensures that seeds are released in a controlled manner, eliminating the trajectory deviations caused by inertia and ensuring precise spacing control.
2Productivity
If traditional large-scale sowing is used, then sowing speed is improved, but resource waste increases and precision deteriorates
Solution Approach 1:
The patent replaces traditional mechanical sowing mechanisms with an air-suction-based seed metering system. This substitution enables precise control over seed delivery, ensuring that only the required number of seeds are sown at each location, thereby eliminating resource waste while maintaining high sowing speed through automated operation.
Solution Approach 2:
The system performs self-service by automatically metering and delivering seeds without manual intervention. The air-suction mechanism automatically picks up and positions seeds, and the paper band drawing mechanism automatically advances the band, creating an autonomous sowing process that is both fast and resource-efficient.
3Manufacturing precision
If manual precision sowing is used, then seed spacing precision is improved, but labor requirements increase and efficiency deteriorates
Solution Approach 1:
The patent implements self-service automation where the machine performs precision sowing without manual intervention. The air-suction seed metering device automatically picks up seeds one by one, and the synchronized paper band drawing mechanism ensures precise spacing, replicating manual precision sowing at automated speeds with no labor requirements.
Solution Approach 2:
The patent substitutes manual mechanical operations with an automated air-suction and paper band transport system. This replacement maintains the precision of manual sowing while dramatically increasing productivity through continuous automated operation, eliminating the trade-off between precision and efficiency.
4Speed
If seeds are allowed to fall freely under gravity, then metering speed is improved, but spacing control precision deteriorates due to inertia
Solution Approach 1:
The seed metering baffle serves as a counterbalancing element that offsets the inertial effects during seed falling. By positioning the baffle strategically, it creates a controlled fall path that maintains high metering speed while ensuring seeds are deposited accurately at the intended locations on the paper band.
Solution Approach 2:
The seed metering baffle acts as an intermediary element between the air-suction metering mechanism and the paper band. It mediates the seed delivery process by providing a transition zone where seeds are released and guided, ensuring both high-speed delivery and precise spacing control without the negative effects of uncontrolled inertial motion.
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
The machine achieves automatic seed packaging, significantly improving breeding efficiency and accuracy by ensuring consistent seed spacing and reducing resource wastage.
Implementation Method 1
uses a negative pressure to absorb seeds onto the seeding disk
Implementation Method 2
the seeds fall under gravity... fall vertically under the action of gravity
Data Source
AI summary
A seed-on-paper-band packaging machine includes: a seed delivery mechanism, including a seed filling assembly and an air-suction-type seed metering device connected sequentially, a plurality of suction holes are arranged on an outer wall of the seed metering device at equal intervals along a circumferential direction thereof; a seed metering baffle is arranged on one side of the suction hole at a lowest point of the seed metering device facing the rotating direction thereof, to block seeds and reduce a speed of the seeds in a horizontal direction to zero; a paper-band releasing and collecting mechanism, a paper-band glue spraying and sealing mechanism, a seed-on band drawing mechanism and a frame.