Glass Edge Heat Chamfering With Contact Pressure Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing edge finishing technologies for glass panels, particularly thin glass panels, are inefficient and unreliable, leading to reduced reliability and increased damage risk due to edge defects, especially in flexible devices requiring reliable bending performance.
Innovation Solution
A heat chamfering method and apparatus that involves a heater moving along a chamfering line in contact with the glass panel edge, applying thermal shock while maintaining controlled contact pressure and angles, and then departing, using a control unit to manage the relative position and movement between the heater and glass panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a heater moves along the glass panel edge to apply thermal shock for heat chamfering, then edge strength is improved and particles are avoided, but contact pressure control during movement is difficult to maintain consistently
Solution Approach 1:
The patent employs a feedback control mechanism where sensors detect the actual contact pressure between the heater and glass panel edge during movement, and this information is fed back to the control unit which adjusts the heater's position or movement speed to maintain the contact pressure within the predetermined range, ensuring consistent heat chamfering quality
Solution Approach 2:
The system dynamically adjusts the heater's movement parameters (position, speed) in real-time during the heat chamfering process based on actual conditions, transitioning from static predetermined parameters to dynamic adaptive control to maintain optimal contact pressure throughout the movement along the glass edge
2Manufacturing precision
If the heater moves precisely along a chamfering line with controlled angles and positions, then manufacturing precision is improved, but the device complexity increases due to multiple control parameters
Solution Approach 1:
The control unit integrates multiple control functions into a single device, simultaneously managing heater position, movement speed, contact pressure, and chamfering line trajectory, thereby achieving high manufacturing precision without proportionally increasing device complexity through functional integration
Solution Approach 2:
The patent replaces complex mechanical positioning mechanisms with automated control systems that use sensors and feedback loops to achieve precise heater positioning and movement along the chamfering line, substituting mechanical complexity with electronic/control system simplicity
3Manufacturing precision
If the heater maintains continuous contact with the glass panel edge during movement, then edge chamfering quality is improved, but processing time increases due to slow movement speed
Solution Approach 1:
The system dynamically adjusts the heater's movement speed along the glass edge, allowing faster movement in sections where quality requirements are met and slower movement where precise heat application is needed, optimizing the balance between processing time and chamfering quality through speed variation rather than maintaining constant slow speed
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 method and apparatus enhance processing efficiency, reduce processing time, and achieve high yield with accurate edge chamfering, improving edge strength and reducing defects in glass panels.
Implementation Method 1
heat-chamfering the edge of the glass panel by applying thermal shock thereto while causing the heater to move from the chamfering start point to a chamfering end point
Data Source
AI summary
A heat chamfering method for a glass panel includes bringing a heater into contact with an edge of a glass panel by causing the heater to approach a chamfering start point, heat-chamfering the edge by moving the heater from the chamfering start point to a chamfering end point along a chamfering line, and bringing the heater into non-contact with the glass panel by causing the heater to depart from the chamfering end point. The heat-chamfering may include maintaining contact pressure between the heater moving along the chamfering line and the glass panel within a predetermined range of change. In the approaching, an angle defined by a chamfering start point approach line and the chamfering line at the chamfering start point ranges from 155° to 175°. In the departure, an angle defined by the chamfering line and a chamfering end point departure line ranges from 155° to 175°.