Granular Material Dispensing System with Rotating Alignment
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Solution Overview
Problem
Current systems for dispensing granular agricultural products lack accuracy, are prone to cross-contamination, and do not have adequate safeguards against improper dispensing during electrical power failures, which can lead to severe crop damage or failure.
Innovation Solution
A multi-product dispensing system with separate hoppers for each granular material, a control system, and a rotatable structure with a dispensing mechanism that ensures precise alignment and weighing, preventing cross-contamination and ensuring accurate dispensing even during power failures through backup power sources and automatic valve closure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional dispensing systems are used for granular agricultural products, then basic dispensing function is provided, but accuracy and prevention of cross-contamination are insufficient
Solution Approach 1:
The system divides the dispensing process into separate functional modules: individual hoppers for each granular material, separate dispensing mechanisms for each material, and a central mixing chamber. This segmentation prevents cross-contamination by ensuring that each material is dispensed through its own dedicated pathway, while maintaining high accuracy through precise control of each individual dispensing mechanism.
Solution Approach 2:
The patent introduces an intermediary mixing chamber that receives dispensed materials from separate hoppers and combines them before delivery. This intermediary structure acts as a buffer that prevents direct contact between different granular materials during storage and handling, eliminating cross-contamination risks while allowing precise control over the composition of the final mixture.
2Reliability
If conventional dispensing systems operate during electrical power failures, then basic operation may continue, but improper dispensing occurs causing crop damage
Solution Approach 1:
The system performs preliminary actions by pre-programming dispensing sequences and parameters during normal operation. Before a power failure occurs, the control system stores the required dispensing information in non-volatile memory, ensuring that even if power is lost, the system can resume operation with the correct formulation data intact, maintaining both reliability and precision.
Solution Approach 2:
The patent implements feedback mechanisms where the control system continuously monitors dispensing operations and verifies material delivery. During power failures, this feedback system detects abnormal conditions and can either pause operation to prevent improper dispensing or automatically adjust parameters to maintain accuracy, thereby preventing crop damage while ensuring reliable operation.
3Reliability
If separate hoppers and dispensing mechanisms are used for each granular material, then cross-contamination is prevented, but system complexity increases
Solution Approach 1:
The control system is designed as a universal multi-functional unit that can manage multiple hoppers and dispensing mechanisms through a single integrated interface. This universal controller handles material identification, dispensing timing, dosage calculation, and error detection for all materials, thereby maintaining high reliability for cross-contamination prevention while reducing operational complexity through centralized management.
Solution Approach 2:
The patent merges the control functions for multiple separate dispensing mechanisms into a single integrated control system. By combining the management of individual hoppers and dispensers under one unified control architecture, the system maintains the reliability benefits of separate material handling paths while reducing the complexity of having multiple independent control systems.
4Measurement precision
If precise alignment mechanisms are used for transferring granular material, then dispensing accuracy is improved, but device complexity increases
Solution Approach 1:
The system replaces complex mechanical alignment mechanisms with automated positioning systems that use sensors and controlled motion. Instead of relying on precision-machined mechanical guides and manual alignment, the system uses motorized actuators with feedback control to position dispensing nozzles and transfer chutes, achieving high precision while reducing mechanical complexity and improving adjustability.
Data Source
AI summary
A dispensing system for granular materials, in particular agricultural products, capable of dispensing multiple products that comprises a control means for entering a product formula, hoppers that contain material for formulating the product each having a dispensing means controlled by the control means, material is fed from each hopper through a tube and fed into a housing having a rotatable structure that allows the material to be dispensed into a receptacle connected to a weighing means and weighed and feedback means connected to the weighing means and to the control means feeds weight information to the control means which adjusts the dispensing of the material from each of the hoppers as necessary to accurately formulate a product.