Bending Bar Route Feedback to Prevent Bending Object Damage

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Solution Overview

Problem

Existing display device manufacturing processes often result in damage to bending objects during the bending process due to deviations in the movement route of bending bars from standard routes, leading to inefficiencies and potential damage.

Innovation Solution

A bending apparatus and method that includes a stage, a bending bar, a drive unit, and a measuring unit to measure and correct the movement route of the bending bar in real-time, ensuring it follows a standard route to minimize damage and improve process efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the bending bar moves along a predetermined route without correction, then the bending process is simple and fast, but the movement route inaccuracies cause damage to the bending object

Engineering Contradiction:
Improveintegrity of bending objectVSAvoidbending apparatus structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements a feedback mechanism where a measuring unit (laser sensor) continuously monitors the actual position of the bending bar during movement. The controller compares the measured position with the standard route and generates correction values in real-time, adjusting the bending bar's trajectory to minimize deviations and prevent damage to the bending object.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent replaces purely mechanical positioning with a hybrid system that uses optical measurement (laser sensor) and computational correction. Instead of relying solely on mechanical precision of the drive unit, the system uses optical fields for measurement and digital processing for route correction, substituting mechanical complexity with sensing and control intelligence.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Manufacturing precision

If the movement route of the bending bar is measured and corrected in real-time, then damage to the bending object is minimized, but the measurement and correction processes increase system complexity

Engineering Contradiction:
Improveaccuracy of bending routeVSAvoidmeasurement and control system
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The measuring unit continuously monitors the bending bar position and feeds this information back to the controller, which calculates correction values and adjusts the drive unit in real-time. This closed-loop feedback system ensures high manufacturing precision by dynamically compensating for route deviations.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs self-correction by automatically measuring its own position and adjusting its trajectory without external intervention. The bending apparatus monitors and corrects its own movement route, reducing the need for external calibration or manual adjustment.

Inventive Principle:
Principle #25Self-service

3Productivity

If the bending bar follows a standard route without measurement, then the process is efficient and fast, but inaccuracies in the route cause damage to components

Engineering Contradiction:
Improvebending process efficiencyVSAvoiddamage to bending object
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The real-time measurement and feedback system enables the bending bar to maintain high speed movement while continuously correcting its position. The fast response of the laser sensor and controller allows the system to operate at high productivity without sacrificing accuracy, as corrections are made dynamically during the bending process.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system dynamically changes the movement parameters (position, speed) of the bending bar based on real-time measurement data. By adjusting these parameters on-the-fly, the system maintains both high productivity and high precision, preventing damage while preserving process efficiency.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11523516B2Bending apparatus
Publication Date: 2022.12.06 SAMSUNG DISPLAY CO LTD
  • US11523516B2 patent drawing
  • US11523516B2 patent drawing
  • US11523516B2 patent drawing

AI summary

A bending apparatus including a stage on which a bending object is positioned, a bending bar, a drive unit connected to the bending bar and configured to move the bending bar according to a standard route to bend the bending object by coming into contact with the bending object, and a measuring unit that measures a movement route of the bending bar.