Derusting Machine with Carbide Bits and Wire Wheels
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Solution Overview
Problem
Traditional derusting methods in the iron and steel industry are time-consuming and labor-intensive, and fail to achieve the desired cleanliness level of Sa 2.5-3.0 as per ISO8501 standards, as they only remove loose rust.
Innovation Solution
A derusting machine equipped with perpendicular derusting wheels, each comprising wire wheels and a rotating wheel with a carbide bit, connected to a driving mechanism, dust hood, suction nozzles, and a vacuum cleaner, which allows for efficient rust removal by scratching the surface and capturing dust, achieving the desired cleanliness level.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual grinding with wire gauze is used, then labor intensity is high and time-consuming, but the rust removal effect is limited to loose rust only
Solution Approach 1:
The patent replaces the traditional mechanical wire gauze grinding system with a combined mechanical-carbide scratching system. The derusting machine uses rotating wire wheels combined with carbide bits to scratch and remove rust more effectively, achieving Sa 2.5-3.0 cleanliness level while maintaining high productivity.
Solution Approach 2:
The patent employs a composite derusting wheel structure combining wire wheels with carbide bits. This composite design allows the wire wheels to remove loose rust while the carbide bits scratch and remove embedded rust, achieving both high efficiency and high cleanliness level simultaneously.
2Manufacturing precision
If traditional wire gauze method is used, then the process is simple, but it fails to achieve Sa 2.5-3.0 cleanliness level
Solution Approach 1:
The derusting wheel is segmented into multiple components: wire wheels for removing loose rust and carbide bits for scratching embedded rust. This segmentation allows each component to perform its specific function, achieving high cleanliness level while keeping the overall machine structure manageable through modular design.
Solution Approach 2:
The derusting machine integrates multiple functions into a single device: rust removal, dust collection, and scrap recycling. The dust hood and vacuum cleaner handle dust collection while the system recycles iron scraps, reducing overall system complexity by combining multiple operations in one machine.
3Productivity
If manual derusting is used, then equipment is simple, but labor intensity is high and work efficiency is low
Solution Approach 1:
The derusting machine is designed with automatic dust collection through the dust hood and vacuum cleaner system. The machine automatically sucks up dust and iron scraps during operation, reducing the need for manual intervention and maintaining high work efficiency while simplifying operation.
Solution Approach 2:
The system automatically separates and recycles iron scraps from the dust collection process. The vacuum cleaner collects both dust and iron scraps, which are then separated and the iron scraps are recycled, reducing operational complexity by automating the recovery process.
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 machine significantly reduces labor intensity, improves work efficiency, and ensures product quality by effectively removing rust to the Sa 2.5-3.0 cleanliness level while recycling iron scraps and reducing operational costs.
Implementation Method 1
the operators use wire gauze to remove iron rust through manual grinding
Implementation Method 2
the plurality of wire wheels contacts a steel plate directly to remove the rust thereon
Implementation Method 3
the carbide bit on the rotating wheel scratches the steel plate longitudinally and transversely, which increases the surface roughness of the steel plate
Implementation Method 4
the plurality of suction nozzles is connected to the vacuum cleaner through the pipe
Data Source
AI summary
A derusting machine includes at least two derusting wheels; a driving mechanism; a support assembly; a dust hood; a plurality of suction nozzles disposed through the dust hood; a vacuum cleaner; and a pipe. The at least two derusting wheels are perpendicular to each other; each derusting wheel includes a plurality of wire wheels and a rotating wheel disposed between the plurality of wire wheels, and each the rotating wheel includes a carbide bit. The at least two derusting wheels are connected to the driving mechanism. The driving mechanism is disposed in or on the support assembly. The support assembly is a handle, a conveyor, or a support frame. The dust hood is attached to the at least two derusting wheels. The plurality of suction nozzles is connected to the vacuum cleaner through the pipe.