Glass Sheet Margin Breaking via Internal Zone Vibration
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Solution Overview
Problem
Existing glass cutting techniques struggle to efficiently break out complex-shaped margins, particularly those with small concave radii of curvature, often resulting in quality issues such as chipping and scrap, and require lengthy adjustments of support points, impacting production efficiency and cost.
Innovation Solution
A method involving gripping the glass sheet only in the internal zone to hold it in a vibration position, followed by vibrating the internal zone to propagate vibrations to the cutting lines, allowing for simultaneous and precise breaking out of margins regardless of their shape complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional pressing or gripping techniques are used to break out complex-shaped margins, then the margin can be separated from the glass sheet, but quality problems occur including chipping, scrap, and inability to handle margins with small concave radii
Solution Approach 1:
The patent applies mechanical vibration to the internal zone of the glass sheet to propagate vibrations through the cutting lines to the margins, enabling clean breaking out without chipping or scrap. This vibration-based approach allows handling of complex-shaped margins with small concave radii that cannot be managed by conventional pressing or gripping techniques.
Solution Approach 2:
The patent replaces conventional mechanical pressing or gripping systems with a vibration-based mechanical system. Instead of applying direct force to bend or grip the margin, the system uses vibration propagation through the glass sheet to achieve margin separation, eliminating the need for complex support points and adjustment mechanisms.
2Manufacturing precision
If support points are adjusted to break out complex margins, then the margin can be broken out, but lengthy adjustments are required impacting production efficiency
Solution Approach 1:
The vibration-based system eliminates the need for manual adjustment of support points. The vibration propagation mechanism automatically adapts to the glass sheet and cutting line configuration, allowing the system to self-adjust and operate without lengthy manual interventions, thereby significantly improving production efficiency.
3Productivity
If the glass sheet is gripped in the internal zone for vibration, then vibrations can propagate to the cutting lines, but the gripping mechanism must be precisely positioned
Solution Approach 1:
The gripping mechanism is designed to be universally applicable to different glass sheet sizes and configurations. By gripping the internal zone in a standardized manner, the system can accommodate various margin shapes and positions without requiring repositioning or realignment, simplifying operation while maintaining vibration propagation effectiveness.
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 approach enables clean, precise, and efficient breaking out of multiple glass margins, including complex shapes, while minimizing the risk of internal zone damage and reducing production time and costs.
Implementation Method 1
vibrating said internal zone. The holding of said internal zone is continued during the step of vibrating said internal zone
Data Source
AI summary
The invention relates to a method for breaking out at least one part to be broken out, called a “margin” (12_1, 12_2, 12_3), from a glass sheet (10) bearing at least one cutting line (10_1, 10_2, 10_3) separating said at least one margin from an internal zone (13) of said glass sheet. Said method includes steps of:gripping (E10) the glass sheet only in the internal zone, so as to hold the glass sheet in a position in which vibrations are able to propagate at the surface of said internal zone until said at least one cutting line is reached,vibrating (E20) said internal zone.