Wet Sanding Disc Eccentric Water Push-Out Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Automatic wet sanding apparatuses face issues with sanding dust lingering around the sanding sliding body, leading to clogging and reduced efficiency during the sanding process.
Innovation Solution
The apparatus incorporates a water supply system with a disc and cushion pad configuration, where water is pushed out from the central portion towards the outer circumferential side between the sanding sliding body and the painted surface, effectively washing away sanding dust using a push-out device and eccentric rotation to maintain high pressure and flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If water is supplied to the introduction space during automatic wet sanding, then sanding dust can be washed away, but sanding dust still lingers around the sanding sliding body causing clogging
Solution Approach 1:
Instead of allowing water to flow naturally from the introduction space, the patent uses a push-out device to actively force water outward from the center holes through the cushion pad toward the painted surface. This inverted flow direction ensures water penetrates the sanding sliding body and effectively washes away dust from the contact area, preventing dust accumulation that would otherwise cause clogging and reduce sanding efficiency
Solution Approach 2:
The cushion pad with center holes acts as an intermediary component between the water supply system and the painted surface. It receives water from the push-out device and distributes it uniformly across the sanding sliding body contact area, ensuring effective dust removal while maintaining consistent water flow pressure to prevent dust lingering
2Object-affected harmful factors
If water flows between the sanding sliding body and painted surface, then sanding dust is washed away, but water flow pressure decreases reducing dust removal effectiveness
Solution Approach 1:
The push-out device pre-pressurizes water in the introduction space before it reaches the sanding sliding body. By accumulating and pressurizing water in advance through the center holes, the system ensures high-pressure water flow is delivered to the contact area, maintaining effective dust removal capability throughout the sanding process
Solution Approach 2:
The water delivery system is segmented into multiple center holes distributed across the cushion pad. This segmentation allows water to be delivered through multiple pathways simultaneously, maintaining flow pressure by distributing the water flow load and preventing pressure loss that would occur with a single centralized flow path
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 configuration reduces the likelihood of clogging and maintains high sanding efficiency by effectively washing away sanding dust, ensuring continuous operation and improved surface finishing.
Implementation Method 1
a push-out device that pushes out water that has been supplied to the introduction space through the water supply pipe toward the painted surface via the disc center hole and the pad center hole
Implementation Method 2
sanding dust resulting from automatic wet sanding is washed away toward the outer circumferential side by the water that is pushed out toward the outer circumferential side
Data Source
AI summary
In an automatic wet sanding apparatus including a disc and a cushion pad, a disc center hole is formed at a central portion of the disc and a pad center hole is formed at a central portion of the cushion pad. Water having been supplied to an introduction space inside a skirt is stirred as an eccentric head rotates eccentrically and thereby pushed out toward a painted surface via the disc center hole and the pad center hole with enhanced pressure. Thus, sanding dust resulting from automatic wet sanding can be washed away toward an outer circumferential side by the water that is pushed out toward the outer circumferential side, so that the likelihood of clogging due to sanding dust can be reduced and high sanding efficiency can be maintained.