Pivoted Glass Scoring Head for Consistent Ribbon Score Depth
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Solution Overview
Problem
Inconsistent score depth in glass ribbons due to variations in ribbon thickness, leading to undesirable sheet quality and process upsets during the production of glass articles.
Innovation Solution
A scoring apparatus with a score head, pressure regulator, and pivot mechanisms that allow for a biasing force to be exerted and rotated, enabling the score head to move and adjust to the ribbon's surface topography, ensuring consistent score depth across varying thicknesses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a fixed scoring apparatus is used, then the structure is simple, but the score depth becomes inconsistent due to ribbon thickness variations
Solution Approach 1:
The scoring apparatus employs dynamic elements including a pivot mechanism that allows the score head to rotate and follow the ribbon surface contours, and a lever arm with variable positioning that adjusts the scoring force. These dynamic components enable the apparatus to adapt to thickness variations in real-time, maintaining consistent score depth despite changes in ribbon geometry
Solution Approach 2:
The apparatus changes the pressure parameter dynamically through the lever arm mechanism, which allows adjustment of the biasing force applied to the score head. By varying the pressure parameter in response to ribbon thickness variations, the system maintains optimal scoring conditions across different ribbon specifications
2Adaptability or versatility
If pressure is increased to score through thicker ribbons, then scoring capability improves, but score depth becomes too deep for thinner ribbons
Solution Approach 1:
The lever arm mechanism provides dynamic pressure adjustment, allowing the operator to vary the biasing force applied to the score head. This dynamic control enables the same apparatus to handle both thin and thick ribbons by adjusting the pressure parameter, achieving adaptability across different ribbon thicknesses while maintaining precise score depth control
Solution Approach 2:
The pivot mechanism allows the score head to independently adjust its position and angle at each location along the ribbon, creating a locally adapted scoring action. This local quality adjustment ensures that the scoring pressure and depth are optimized for the specific thickness at each point, preventing both under-scoring of thick sections and over-scoring of thin sections
Data Source
AI summary
A glass ribbon scoring apparatus and method includes a score head, a pressure regulator configured to exert a biasing force against the score head, a first pivot mechanism positioned between the score head and the pressure regulator, a second pivot mechanism mounted on a support member, and a lever arm positioned between the first pivot mechanism and the second pivot mechanism. The first and second pivot mechanisms rotate and the lever arm moves with movement of the score head.