Laser Film Cutting Path Control for Meandering Polarizing Film
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Solution Overview
Problem
Conventional film cutting technologies fail to effectively control the cutting operation for polarizing films with curved or eccentric structures, leading to meandering effects and compromised perpendicularity and dimensional accuracy of the polarizing film sheets.
Innovation Solution
A film cutting system that includes a supply unit, first and second laser units with head drivers for precise laser cutting, and an inclination measurement unit to adjust the cutting path based on the film's inclination, ensuring accurate slitting and cutting of polarizing films into predetermined sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional cutting technology is used on raw polarizing film with curved or eccentric structure, then the cutting process is simple, but the perpendicularity and dimensional accuracy of the polarizing film sheet deteriorate due to meandering effect
Solution Approach 1:
The system performs preliminary measurement of the film's inclination angle using an inclination measurement unit before cutting. This allows the control unit to pre-calculate the corrected cutting path that compensates for the film's curved or eccentric structure, ensuring accurate cutting despite the film's imperfections
Solution Approach 2:
The inclination measurement unit continuously monitors the film's inclination angle during the cutting process. The control unit uses this real-time feedback data to dynamically adjust the cutting path, maintaining perpendicularity and dimensional accuracy even when the film exhibits meandering effects
2Manufacturing precision
If the raw polarizing film is cut according to its meandering pattern, then the perpendicularity can be maintained, but the cutting operation becomes complex and requires dynamic adjustment
Solution Approach 1:
The system replaces complex mechanical adjustments with automated control. The control unit calculates the corrected cutting path based on inclination data and guides the laser cutting unit accordingly, eliminating the need for manual intervention or complex mechanical repositioning
Solution Approach 2:
The cutting system dynamically adapts to the film's meandering pattern by continuously adjusting the cutting path in real-time. The control unit processes inclination angle data and modifies the cutting trajectory dynamically, allowing the system to maintain perpendicularity despite film irregularities
3Manufacturing precision
If a fixed cutting path is used, then the cutting operation is simple, but the dimensional accuracy deteriorates when the film has curved or eccentric structure
Solution Approach 1:
The system performs preliminary measurement of the film's inclination angle using an inclination measurement unit before cutting. This allows the control unit to pre-calculate the corrected cutting path that compensates for the film's curved or eccentric structure, ensuring accurate cutting despite the film's imperfections
Solution Approach 2:
The inclination measurement unit continuously monitors the film's inclination angle during the cutting process. The control unit uses this real-time feedback data to dynamically adjust the cutting path, maintaining perpendicularity and dimensional accuracy even when the film exhibits meandering effects
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 system ensures stable perpendicularity and dimensional accuracy of polarizing film sheets by adjusting the cutting operation according to the film's inclination, enabling the production of films with various sizes and efficient scrap collection.
Implementation Method 1
a first laser unit including first and second laser nozzles each configured to radiate a laser beam onto the raw film
Implementation Method 2
by laser cutting of the raw film
Data Source
AI summary
Disclosed herein is a film cutting system for dividing and forming a film sheet having a predetermined unit width and unit length from a raw film by laser cutting of the raw film. The film cutting system includes: a supply unit configured to intermittently supply the raw film by a predetermined unit supply length in a length direction of the raw film; a first laser unit including first and second laser nozzles each configured to radiate a laser beam onto the raw film, and a first head driver configured to convey the first laser nozzle and the second laser nozzle in a width direction of the raw film perpendicular to the length direction in a reciprocating manner; and a second laser unit including a laser nozzle disposed spaced apart from the first laser unit by the unit length in the length direction and configured to radiate a laser beam onto the raw film, and a second head driver configured to convey the laser nozzle in the width direction in a reciprocating manner, wherein, when the raw film is supplied by the supply unit, the first head driver dispose the first laser nozzle and the second laser nozzle so as to be spaced apart from each other by the unit width, and each of the first laser nozzle and the second laser nozzle radiates, in the length direction, the laser beam onto the raw film supplied by the supply unit to slit the raw film, and wherein, when the slitting of the raw film is completed, the supply unit stops supplying the raw film; the first head driver conveys one of the first laser nozzle and the second laser nozzle in the width direction; the second head driver conveys the laser nozzle in the width direction; and the one of the first laser nozzle and the second laser nozzle and the laser nozzle respectively radiate the laser beam onto the raw film in the width direction to cut the raw film to divide and form the film sheet from the raw film.