Seed Mixing System with Segmented Dispensing for Ratio Accuracy

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Solution Overview

Problem

Existing seed mixing processes often fail to maintain target quantities and ratios of different types of seeds in individual sacks, as the desired volumetric ratios achieved in batches do not consistently carry through to the final packaging.

Innovation Solution

A system comprising dispensing assemblies to portion specific quantities of each seed type from bulk supplies and a mixing assembly to combine them, ensuring the seed mix meets target quantities and ratios, with optional packaging in bags or SeedPak containers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If seeds are mixed in batches using volumetric ratios, then the mixing process is simple and fast, but the target ratio of different seed types is not maintained in individual sacks

Engineering Contradiction:
Improvemixing speedVSAvoidseed ratio accuracy
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The system segments the seed mixing process by separating different seed types into individual dispensing assemblies, each capable of precise metering. This allows each seed type to be portioned independently before combination, ensuring accurate ratio control while maintaining efficient production throughput.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system incorporates feedback mechanisms through controllers that monitor and adjust the operation of each dispensing assembly. This closed-loop control ensures that the target ratio of different seed types is maintained in each sack by continuously comparing actual dispensing amounts with desired ratios and making real-time adjustments.

Inventive Principle:
Principle #23Feedback

2Device complexity

If manual portioning and mixing is used, then equipment complexity is low, but consistency of seed ratios across sacks cannot be achieved

Engineering Contradiction:
Improvesystem simplicityVSAvoidratio consistency
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The system employs self-regulating dispensing assemblies with built-in metering mechanisms that automatically portion seeds according to pre-programmed ratios. Each assembly monitors and adjusts its own operation to maintain consistent seed distribution, reducing the need for complex external control systems while ensuring reliable ratio consistency.

Inventive Principle:
Principle #25Self-service

3Productivity

If volumetric mixing is used, then the process is fast and simple, but seed segregation occurs and planting efficiency decreases

Engineering Contradiction:
Improveprocessing speedVSAvoidseed mix uniformity
Core Design Contradiction:
ProductivityVSStability of the object's composition

Solution Approach 1:

The system performs preliminary portioning of each seed type before mixing, with each dispensing assembly pre-metering the exact amount of each seed type required. This preliminary action ensures that seeds are distributed uniformly from the start, preventing segregation during subsequent handling and maintaining mix integrity throughout the packaging process.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS10687455B2Systems and processes for combining different types of seeds
Publication Date: 2020.06.23 MONSANTO TECHNOLOGY LLC
  • US10687455B2 patent drawing
  • US10687455B2 patent drawing
  • US10687455B2 patent drawing

AI summary

A process and system are provided for preparing seed mixes having a target quantity and a target ratio of different types of seeds. The process generally includes portioning quantities of different types of seeds from bulk supplies of the seeds, and combining the portioned quantities of seeds to prepare the seed mixes. The system generally includes first and second dispensing assemblies for portioning the quantities of the different types of seeds from the bulk supplies, and a mixing assembly for receiving the portioned quantities of seeds as the seed mixes. The combined quantities of the different types of seeds in the seed mixes are substantially equal to the target quantity, and a ratio of the quantities of the different types of seeds is substantially equal to the target ratio.