Scrubber Rotor Assembly for Rapid Pruner Sap Removal
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Solution Overview
Problem
Current methods for cleaning pruning tools contaminated with sticky sap or resin are inefficient, often requiring prolonged soaking, manual scrubbing with hazardous solvents, and risk contamination of plant extracts, posing health hazards and inefficiencies in tool maintenance.
Innovation Solution
A motorized rotor assembly with scrubber discs and a helical brush that uses radial arrays of bristles to effectively clean pruning tools, providing mechanical and chemical cleaning actions while minimizing solvent loss and user exposure to hazards, with features like a slip clutch for safety and easy component replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional soaking or manual scrubbing methods are used to clean pruning tools, then cleaning effectiveness is improved, but cleaning time and operational complexity increase significantly
Solution Approach 1:
The patent employs ultrasonic vibration through a transducer element that generates high-frequency mechanical vibrations in the cleaning fluid. These vibrations create cavitation bubbles that implode on the tool surfaces, effectively removing stubborn residues and sap buildup without requiring prolonged soaking or manual scrubbing, thus reducing cleaning time while maintaining effectiveness
Solution Approach 2:
The system uses hydraulic circulation to continuously pump cleaning fluid through a closed-loop system, ensuring fresh solvent constantly contacts the tool surfaces. The fluid is pressurized and circulated through channels that direct it onto all surfaces of the pruning tools, enabling rapid and thorough cleaning without manual intervention
2Reliability
If manual scrubbing with solvents is used, then cleaning effectiveness is improved, but user exposure to hazardous substances and contamination risk increase
Solution Approach 1:
The system automatically performs the cleaning function through motorized circulation pumps, ultrasonic transducers, and heated fluid circulation. The machine handles all cleaning operations without requiring users to manually handle solvents or scrub tools, eliminating direct user exposure to hazardous substances while maintaining effective cleaning through automated mechanical and thermal actions
Solution Approach 2:
The cleaning fluid acts as an intermediary medium that transfers the cleaning action from the machine to the tool surfaces. The fluid is contained within a closed-loop hydraulic system, allowing it to contact and dissolve residues on tools without exposing users to direct contact with solvents. The fluid can be heated and circulated under pressure to enhance cleaning while keeping users safe
3Reliability
If prolonged soaking in cleaning solutions is used, then residue removal is improved, but solvent loss through evaporation and contamination of plant extracts increases
Solution Approach 1:
The system maintains continuous circulation of cleaning fluid through a closed-loop hydraulic system, ensuring that fresh solvent constantly contacts tool surfaces without interruption. The fluid is continuously pumped, heated, and redistributed, maintaining optimal cleaning action throughout the process without the need for prolonged static soaking that would lead to evaporation losses
Solution Approach 2:
The system utilizes thermal phase management by heating the cleaning fluid to enhance solvent effectiveness and accelerate residue removal. The heated fluid circulates through the system, and the closed-loop design prevents evaporation losses by containing the fluid throughout the heating and circulation process, allowing efficient cleaning without solvent waste
4Reliability
If frequent cleaning and sharpening is performed on pruning tools, then tool performance is maintained, but productivity and work continuity decrease
Solution Approach 1:
The automated cleaning system performs maintenance functions without requiring the operator to stop work and manually clean or sharpen tools. The motorized circulation, ultrasonic vibration, and heated fluid systems automatically maintain tool performance, allowing workers to continue harvesting or pruning operations without interruption, thus preserving productivity while ensuring tool reliability
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 enables rapid and effective cleaning of pruning tools, reducing the risk of contamination and health hazards, while allowing for the collection and concentration of valuable plant oils, and ensuring tool safety through robust and user-friendly design.
Implementation Method 1
an ultrasonic transducer element disposed within the housing and operable to ultrasonically vibrate the cleaning fluid
Implementation Method 2
a heating element disposed within the housing and operable to heat the cleaning fluid
Data Source
AI summary
Pruning plants that exude sticky sap may leave pruners gummed up and barely useable. Cleaning edged cutting tools presents injury risks to nursery and farm workers, so a need for rapid and effective cleaning machines exists. This pruner cleaning machine includes a motorized rotor assembly of scrubber discs facing each other and a helical center brush disposed between them. The scrubber discs include helical ramps and step faces at the ends of these ramps which conform to the ends of the helical scrubber, so that the spacing between the scrubber discs may be accurately controlled by the number of turns of the helical scrubber, including partial turns. The rotor may be reconfigured for various types of pruners by selecting from among various lengths of helical scrubbers. Properly configured, by using this machine and its inventive scrubbing rotor, gummed up pruners may be cleaned in seconds.