Seed Dispensing Assembly With Synchronized Transfer Spacing
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Solution Overview
Problem
Existing seed distribution systems in seeders suffer from variability in seed spacing due to differences in seed shape and size, leading to inconsistent seed placement and loss of precision, especially at higher working speeds, and are not suitable for small granular products, with conveying mechanisms causing further inaccuracies.
Innovation Solution
A distribution assembly with synchronized transfer means, comprising singling wheels and conveying means, that maintain a constant distance between seeds by immobilizing them during transfer, using wheels with adjustable spacing and synchronized rotation to ensure precise seed placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional pneumatic distribution with rotating disks is used, then seeds can be distributed singly, but seed spacing becomes variable due to differences in seed shape and size
Solution Approach 1:
The patent applies local quality by providing customized pocket geometries in the distribution disk. Each pocket is specifically shaped and sized to accommodate a particular type of seed, rather than using uniform pockets for all seed types. This allows precise control over seed positioning and spacing while maintaining adaptability to different seed characteristics through localized design variations.
Solution Approach 2:
The patent employs adjustable and interchangeable distribution disks that can be dynamically configured for different seed types. The system allows operators to change disk configurations based on the specific seed being planted, enabling the machine to adapt to various seed shapes and sizes while maintaining precise spacing control through optimized pocket geometries for each configuration.
2Productivity
If guide chutes are used to direct seeds to the ground, then seeds can be conveyed from height, but precision is lost due to rollback phenomenon and variable horizontal speed
Solution Approach 1:
The patent employs periodic ejection of seeds from the distribution disk pockets at precisely timed intervals. Seeds are released one by one in a controlled sequence rather than continuously, allowing each seed to be deposited at a predetermined location. This periodic action eliminates the rollback phenomenon associated with continuous chute conveyance and maintains precise spacing even at high operating speeds.
3Adaptability or versatility
If distribution disks with uniform circular pockets are used, then the system can handle all seed types, but this introduces variability in seed spacing
Solution Approach 1:
The patent applies local quality by providing customized pocket geometries in the distribution disk. Each pocket is specifically shaped and sized to accommodate a particular type of seed, rather than using uniform pockets for all seed types. This allows precise control over seed positioning and spacing while maintaining adaptability to different seed characteristics through localized design variations.
4Productivity
If seeder operates at higher speeds, then productivity increases, but precision of seed placement deteriorates due to rollback effect
Solution Approach 1:
The patent employs periodic ejection of seeds from the distribution disk pockets at precisely timed intervals. Seeds are released one by one in a controlled sequence rather than continuously, allowing each seed to be deposited at a predetermined location. This periodic action eliminates the rollback phenomenon associated with continuous chute conveyance and maintains precise spacing even at high operating speeds.
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 solution ensures consistent seed spacing and precise placement on the ground, reducing variability and maintaining accuracy even at higher working speeds, suitable for various seed sizes, and minimizing seed loss and wear.
Implementation Method 1
The vacuum applied to one side of the distribution disk allows the seeds from the reservoir to be captured in each of the pockets in the disk, and thus isolated.
Implementation Method 2
The singled seeds thus captured, are then unloaded, one by one, by the rotation of the distribution disk, carrying the pockets containing the singled seed toward a region to which no vacuum is applied. The seeds are then released from the distribution disk and drop into the furrow.
Data Source
AI summary
A distribution assembly for distributing a granular product that are to be distributed on the ground comprises, a mechanism for distributing granular product singly, a mechanism for conveying singled granular product to the ground, and a mechanism for transferring the singled granular product from the mechanism for distributing to the mechanism for conveying. The mechanism for transferring may be synchronized in terms of speed and in terms of position with the mechanism for distributing, and the mechanism for transferring may capture the granular product singly and immobilize it within the mechanism for transferring, so as to keep each granular product spaced a determined and constant distance from one another, in the mechanism for transferring and during the transfer of the granular product to the mechanism for conveying.