Bush Head Surface Processing for Uniform Concrete Texturing
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Solution Overview
Problem
Scarification and shot blasting methods for resurfacing hard surfaces like concrete often result in undesirable patterns or require additional processes, and involve environmental hazards and equipment limitations.
Innovation Solution
A surface processing device with a plate, bearing, and bush heads, allowing for free rotation and attachment to existing surface processing equipment, which can create a texturized surface without scarification patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If scarification with bush heads is used to resurface concrete, then the surface can be treated to remove debris and irregularities, but distinct circular patterns and undulating surfaces are generated
Solution Approach 1:
The bush head is segmented into multiple individual bush elements (typically 3-6 bushes) arranged radially around a central axis. Each bush operates independently to chip away at the surface, and their combined action creates a uniform textured pattern rather than circular scarification patterns. The segmentation allows the treatment to be distributed evenly across the surface area.
Solution Approach 2:
Instead of using a single rotating bush head that creates circular patterns, the invention inverts the approach by using multiple stationary bushes arranged radially that rotate together with the plate. This inversion of the rotational mechanism eliminates the circular pattern problem while maintaining the scarification function.
2Manufacturing precision
If shot blasting is used to resurface concrete, then uniform surface treatment can be achieved, but pre-operation preparation and post-operation clean up are required and abrasive particles present environmental hazards
Solution Approach 1:
The invention replaces the shot blasting mechanical system (which propels abrasive particles at high velocity) with a mechanical scarification system using rotating bushes. This substitution eliminates the need for abrasive materials and their associated environmental hazards while achieving similar surface uniformity through direct mechanical contact and chipping action.
Solution Approach 2:
The invention extracts and eliminates the abrasive particle component from the resurfacing process. By using purely mechanical bushes made of durable material (such as hardened steel or carbide) to perform the surface treatment, the harmful abrasive particles are completely removed from the system, eliminating dust and contamination issues.
3Adaptability or versatility
If conventional surface processing equipment is used, then existing equipment can be operated, but it cannot be adapted to provide shot blasting type surface treatment
Solution Approach 1:
The bush head assembly is designed as a universal attachment that can be mounted on conventional surface processing equipment plates. The modular design with standard mounting holes and interchangeable bush configurations allows the same basic device to provide different surface treatments (texturing, scarification, polishing) on various equipment platforms, achieving multi-functionality without requiring specialized shot blasting machinery.
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 device provides a uniform surface treatment without patterning, reduces environmental hazards, and adapts existing equipment for efficient surface processing.
Implementation Method 1
Each bush head comprises a bracket and a grinding wheel... allowing the plurality of bush heads to make contact with the surface as the spider arm rotates
Data Source
AI summary
Embodiments relate to a surface processing device that may be used to surface process concrete or other hard suitable surfaces. A surface processing device comprises a plate, a bearing, and a plurality of bush heads. The plate has a top and bottom. The bearing can be attached to the top of the plate to facilitate rotation of the plate. The plurality of bush heads can be attached to the bottom of the plate. Each bush head comprises a bracket and a grinding wheel.