Tile Edge Trimming Device with Inverted Abrasive Disc
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Solution Overview
Problem
Existing devices for bevelling the edges of ceramic tiles are cumbersome, difficult to adjust, and risk damaging the tile's outer surface due to their design, which requires machining the tile upside down and has accuracy and sliding issues.
Innovation Solution
A motorized trimming device with a support and guiding plate, adjustable guiding bar, and a standard motor assembly that allows the abrasive disc to operate from below the tile, maintaining the tile's integrity and enabling precise bevelling without damaging the outer surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the tile is machined upside down with the abrasive disc contacting the hidden surface, then the noble surface can be protected from direct contact, but the machining precision deteriorates due to irregular sliding on the textured bonding side
Solution Approach 1:
The patent inverts the conventional approach by having the abrasive disc contact the noble surface directly while the plate contacts the bonding side. This reversal allows precise machining of the visible edge while the plate slides on the textured bonding surface, combining surface protection with machining precision.
Solution Approach 2:
The plate acts as an intermediary element that contacts the bonding side and provides a stable sliding surface, while the abrasive disc contacts the noble surface. This intermediary arrangement allows the noble surface to be machined precisely without the plate directly interfering with it.
2Strength
If a support frame contacts the hidden surface with reliefs and shapings, then the tile can be gripped by laying adhesive, but the sliding becomes disrupted and irregular
Solution Approach 1:
The patent applies local quality by designing the plate with a specific contact surface that interacts with the bonding side's texture. The plate's bottom surface is configured to slide smoothly over the reliefs and shapings of the bonding side, converting the irregular texture into a controlled sliding interface.
3Manufacturing precision
If the abrasive disc is positioned close to the tile edge for precise bevelling, then the bevel accuracy improves, but the risk of damaging the outer surface increases
Solution Approach 1:
The plate serves as a reference surface that provides feedback on the tile's position and orientation. By maintaining consistent contact between the plate and the bonding side, the system automatically compensates for position variations, allowing the abrasive disc to work close to the edge with reduced risk of damage.
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 improved machining precision and aesthetic results while being simpler, lighter, and cost-effective, avoiding damage to the tile's outer surface and ensuring accurate bevelling without the need to turn the tile upside down.
Implementation Method 1
the abrasive disc - which is located between the small frame and the tile - rotates in speed against the edge of the tiles, removing the desired part of this edge
Data Source
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AI summary
A motorised device for trimming the edges of coating tiles is disclosed, comprising a hand-held support frame, on which a motor assembly (2) driving a shaft (2a) carrying an abrasive disc (3) is mounted, said frame comprising a support plate (1) with a lower planar side, and an upper side on which holding means (13) of said motor assembly (2) are provided, further comprising a drive shaft (2a) which is rotatingly mounted according to a rotation axis X-X and crosses perpendicularly said support plate (1), the lower end of said shaft (2a) projecting from the lower side of said support plate (1) with an engaging head for an abrasive disc (3), a rectilinear guiding bar (4), provided with an abutment edge on which said tile edge (M') to be trimmed is meant to slide, mounted, on the lower side of said support plate (1), adjustable in position with respect to said rotation axis X-X.