Floor Stripper Blade Pitch Control for Adhesive Residue
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Solution Overview
Problem
Existing floor stripping machines suffer from excessive vibration, difficulty in controlling manual effort, and lack of mechanisms to adjust the blade's angle of attack, leading to incomplete removal of adhesive residue and the need for frequent blade changes.
Innovation Solution
A floor stripping machine equipped with a novel blade pitch adjustment mechanism and a microcomputer-controlled system that includes separate motors for drive wheels and an oscillating body, allowing for adjustable blade angle and reduced vibration through electro-mechanical or hydraulic actuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a high-weight machine design is used to increase downward force on the cutting blade, then adhesive residue removal capability is improved, but machine portability and ease of operation deteriorate
Solution Approach 1:
The patent employs a counterbalancing mechanism with weights and linkages that offset the heavy weight of the machine during operation. The counterbalance system creates opposing forces that reduce the effective weight felt by the operator, allowing the machine to maintain high downward force on the blade while remaining easier to maneuver and control.
2Device complexity
If the blade holder pitch is fixed, then device complexity is reduced, but adaptability to different floor coverings and adhesive types deteriorates
Solution Approach 1:
The patent implements an adjustable blade holder pitch mechanism that allows the blade angle relative to the machine body to be dynamically changed. This adjustment capability enables the machine to adapt to different floor covering types and adhesive conditions without adding significant complexity, as the mechanism uses straightforward mechanical linkages and positioning systems.
3Ease of operation
If separate motors control drive wheels and oscillating body, then ease of operation and vibration reduction are improved, but device complexity increases
Solution Approach 1:
The patent divides the machine's propulsion and oscillation functions into separate motor-driven systems. Independent motors control the drive wheels and oscillating body, allowing each function to be optimized separately and controlled independently. This segmentation improves operational ease and vibration reduction while managing complexity through modular design and electronic control systems.
4Device complexity
If blade angle of attack cannot be adjusted, then device complexity is reduced, but productivity deteriorates due to frequent blade changes
Solution Approach 1:
The patent incorporates an adjustable blade holder pitch mechanism that allows dynamic adjustment of the blade's angle of attack relative to the floor surface. This enables optimization of cutting performance for different materials and conditions without changing the blade itself, significantly improving productivity while maintaining manageable device complexity through mechanical adjustment linkages.
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 provides improved control, reduced vibration, and efficient removal of adhesive residue without blade changes, enhancing operational ease and effectiveness.
Implementation Method 1
An electric motor whose output shaft was coupled to the machine's cutting head by means of an eccentric drive shaft such that the cutting head was made to move in an orbital or elliptical pattern
Implementation Method 2
an oscillating body, such as a plate, driven by an eccentric and a motor
Data Source
AI summary
Employing a microcomputer and a user interface to control the operation of various motors and a linear actuator of a floor stripper improves efficiency and effectiveness while reducing vibration and sound levels during a floor stripping operation.