Dump Unit With Mobile Metal Conveyor for Tobacco Leaf Unloading
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Solution Overview
Problem
Mechanized harvesting of tobacco leaves faces challenges in maintaining operational flow and ensuring product integrity during transportation and unloading, as conventional dump units require multiple trucks and manual unloading, and lack suitable friction characteristics for efficient tobacco leaf handling.
Innovation Solution
A dump unit with an elevated rear and a mobile metal conveyor system allows for elevated discharge and unloading of tobacco leaves, eliminating the need for additional lifting equipment and enabling direct loading into curing boxes with optimal density and uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional dump units with ground-level discharge are used, then the structure is simple, but additional lifting equipment is required and operation time increases
Solution Approach 1:
The patent applies dimensionality change by elevating the discharge point from ground level to an elevated position (1.5-2.5 meters above ground). The body is designed to tilt and discharge tobacco leaves through an elevated rear opening, eliminating the need for additional lifting equipment and enabling direct loading into curing boxes positioned at elevated levels.
2Device complexity
If conventional tipper box systems are used, then the device is simple, but product integrity is compromised due to inappropriate friction characteristics
Solution Approach 1:
The patent changes the friction parameter by using a metal conveyor belt instead of a conventional tipper box surface. The conveyor belt provides appropriate friction characteristics for tobacco leaves, preventing damage during transport and unloading while maintaining system simplicity.
3Productivity
If multiple dump unit trucks are deployed to maintain operational flow, then productivity is maintained, but device complexity and cost increase
Solution Approach 1:
The patent applies dynamics by making the body tiltable and the conveyor belt mobile. The hydraulic actuator enables the body to tilt for unloading, and the conveyor belt can move to position tobacco leaves for discharge. This dynamic capability allows a single truck to maintain continuous operational flow without requiring multiple static trucks.
4Device complexity
If manual unloading is used, then equipment simplicity is maintained, but productivity decreases and labor requirements increase
Solution Approach 1:
The patent applies self-service by equipping the dump unit with its own conveyor belt system that automatically transports and discharges tobacco leaves. The mobile conveyor belt performs the unloading function autonomously, eliminating the need for manual unloading operations while maintaining equipment simplicity.
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 reduces operation time, ensures product integrity, and enhances safety by allowing continuous, flexible, and homogeneous unloading of tobacco leaves, maintaining product quality and eliminating the need for additional lifting devices.
Implementation Method 1
a body (3), preferably in metal with a substantially rectangular shape, more preferably of the grain type, with a hydraulic actuator for movement and articulation (8)
Implementation Method 2
a door (9) in the rearward position with a hinged opening and closing movement, activated by linear actuators (7)
Implementation Method 3
at least one metallic conveyor belt (E), preferably driven by a hydraulic motor (5) positioned on the bed of the body (3)
Data Source
AI summary
A dump unit comprises a main chassis (2); a metallic body (3) for containing a bulk material, wherein the bulk material can be discharged from one end of the metallic body; a hydraulic actuator (8) for lifting the discharge end of the metallic body with respect to the chassis; and at least one metallic conveyor (E) located on the floor of the body (3), which is operable to discharge the bulk material from the body.