Volumetric Feeder Singulator for Precision Granular Distribution
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Solution Overview
Problem
Conventional seed drills lack precision in material distribution, and there is a need to optimize production efficiency by allowing reuse of parts across different types of seed drills.
Innovation Solution
The agricultural implement incorporates a driveable volumetric feeder unit with a singulator of positive pressure type, connected to a separator that uses a cyclone or filter to separate material from air flow, allowing precise and energy-efficient distribution of granular material, and includes a level sensor for material control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional volumetric feeder is used, then the feeding rate can be controlled for a given volume per unit time, but the precision of material distribution is insufficient
Solution Approach 1:
The output unit is divided into multiple independent channels, each with its own singulator that can independently singulate and discharge material. This segmentation allows precise control of material distribution while maintaining high feeding efficiency through parallel operation of multiple channels.
Solution Approach 2:
A pneumatic singulator uses pressurized air flow to singulate material particles and convey them through channels to the discharge point. This pneumatic mechanism provides precise material placement control while maintaining high feeding rates, resolving the contradiction between precision and productivity.
2Manufacturing precision
If a singulator with movable singulating part is used, then material can be singulated and discharged to ground, but energy consumption increases
Solution Approach 1:
The singulator uses pneumatic pressure differential to move the singulating part and discharge material, replacing energy-intensive mechanical drive systems. This pneumatic approach maintains precise singulation while significantly reducing energy consumption.
Solution Approach 2:
The singulating part's position and movement are controlled by changing pneumatic pressure parameters rather than mechanical force. This parameter-based control enables precise singulation with lower energy consumption, as pneumatic systems are more efficient than mechanical drive systems.
3Manufacturing precision
If separate feeder units are provided for each output unit, then material distribution precision is improved, but device complexity increases
Solution Approach 1:
A single volumetric feeder unit is designed to serve multiple output units through a common material supply system. This universal feeder unit maintains material distribution precision by controlling overall feeding rate, while eliminating the need for multiple separate feeder units, thus reducing device complexity.
Solution Approach 2:
Multiple output units are fed through a single common volumetric feeder unit that supplies material to all channels via a shared material flow path. This merging of feeder functions maintains precision through centralized control while reducing the total number of components and simplifying the overall device structure.
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 precision and operational reliability, enabling efficient feeding of material, reducing energy consumption, and allowing for the reuse of parts across different seed drill types.
Implementation Method 1
a fan for producing an air flow in a primary channel
Implementation Method 2
over which a pressure difference can be applied, such that the singulating part has a high-pressure side and a low-pressure side
Implementation Method 3
a separator that uses a cyclone or filter to separate material from air flow
Data Source
AI summary
An agricultural implement (1) for distributing granular material to ground over which the agricultural implement is travelling comprises a container (14) for the material, a fan (16) for producing an air flow in a primary channel (161, 162), a driveable volumetric feeder unit (141): for feeding the material to the primary channel (161, 162), such that a material laden air flow is produced, a plurality of secondary channels (18) for transporting the material laden air flow, and a plurality of output units (17) which are each connected to one of said secondary channels (18) and have an outlet channel (174) for discharging the material to the ground. Each of the output units (17) comprises a singulator (171), which has a singulating part (1714) which is movable in a singulating space and has a plurality of through-holes, and over which a pressure difference can be applied, such that the singulating part has a high-pressure side and a low-pressure side. The singulator (171) has a material inlet (1711) and an air inlet (1712), which connect to the singulating space on the high-pressure side. A material outlet (1713) of the singulator connects to the outlet channel (174).