Point-of-Impact Web Handling With Variable Tension Feedback
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Solution Overview
Problem
Conventional methods for manufacturing display devices face challenges in accurately printing objects, preventing separation and slip phenomena, and controlling the movement of objects during the printing process, which affects the uniformity and stability of liquid discharge.
Innovation Solution
An apparatus and method that includes a first and second supply unit for rolling the object, a variable unit for applying and releasing tension, a detection unit for generating position information, and a control unit to adjust the handling process based on detected changes, ensuring stable and optimized object supply and preventing separation and slip.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If an encoder-based method is used to supply an object, then the object can be supplied with controlled movement, but it is difficult to prevent separation and slip phenomena
Solution Approach 1:
The patent applies dynamics by making the tension force variable rather than constant. The variable unit adjusts the tension force applied to the object based on real-time position feedback from the detection unit, allowing the system to adapt to changing conditions during object supply and prevent separation and slip phenomena
Solution Approach 2:
The patent implements feedback control where the detection unit continuously monitors the position of the variable unit and the control unit adjusts the tension force accordingly. This closed-loop feedback system ensures accurate object supply while preventing separation and slip by dynamically responding to position changes
2Stability of the object's composition
If tension force is applied to the object, then the object can be controlled stably, but the equipment complexity increases
Solution Approach 1:
The patent segments the object supply system into distinct functional units: a first supply unit, a second supply unit, a variable unit for tension control, and a detection unit. This segmentation allows each component to perform its specific function efficiently, maintaining stability while managing complexity through modular design
Solution Approach 2:
The variable unit serves multiple functions: it applies tension force to prevent slip, controls object movement speed, and works with the detection unit to maintain positioning accuracy. This multi-functionality reduces the need for separate dedicated components, managing equipment complexity while maintaining stability
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 solution enables accurate and stable control of object movement, preventing separation and slip, and ensuring suitable conditions for liquid impact, thereby improving the uniformity and volume of liquid discharge during the manufacturing process of display devices.
Implementation Method 1
a variable unit configured to apply a tension force by pressurizing the object or release the tension force by releasing the pressurization based on a change in a position
Implementation Method 2
a detection unit configured to detect the change in the position of the variable unit to generate position information of the object
Implementation Method 3
a first supply unit configured to supply an object through rolling; a second supply unit configured to receive the object from the first supply unit through rolling
Data Source
AI summary
Provided is an apparatus for checking a point of impact. The apparatus for checking a point of impact includes: a first supply unit configured to supply an object through rolling; a second supply unit configured to receive the object from the first supply unit through rolling and supply the object to a demand place; a variable unit configured to apply a tension force by pressurizing the object or release the tension force by releasing the pressurization based on a change in a position; a detection unit configured to detect the change in the position of the variable unit to generate position information of the object; a guide unit provided between the first supply unit and the second supply unit to guide the object; and a control unit configured to control a handling process including the supply of the object based on the position information of the detection unit.