Glass Roll Laser Cutting With Peeled Edge Collection
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Solution Overview
Problem
Existing methods for cutting glass films to produce glass rolls often result in thread-like peeled materials being broken or adhering to the glass film, damaging the surface during collection.
Innovation Solution
A method involving a laser cutting process where the thread-like peeled material is wound around a rod-shaped collecting member, positioned downstream of the laser irradiation, to collect it continuously without breaking, ensuring the glass roll is formed without surface damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If thread-like peeled material is removed by gas blowing, suction, or mechanical means during cutting, then the peeled material is removed from the glass film, but the thread-like peeled material is broken and fragments adhere to the glass film surface
Solution Approach 1:
The patent extracts the harmful thread-like peeled material from the system by introducing a dedicated collection mechanism (suction nozzle or collection bag) that continuously removes the peeled material at the cutting location, preventing it from adhering to the glass film surface while maintaining surface quality
Solution Approach 2:
The patent introduces an intermediary collection mechanism (suction nozzle or collection bag) between the laser cutting source and the glass film surface. This intermediary continuously captures the thread-like peeled material during generation, preventing direct contact with the glass film and eliminating the harmful effect of fragmentation and adhesion
2Ease of manufacture
If conventional cutting methods are used to separate glass film edges, then the glass film is cut, but thread-like peeled material is generated and may damage the glass film surface
Solution Approach 1:
The patent converts the harmful thread-like peeled material generated during laser cutting into a manageable byproduct by implementing continuous collection mechanisms. The suction nozzle or collection bag captures the peeled material immediately upon generation, transforming a potential surface-damaging hazard into a controlled removal process that maintains glass film quality
Solution Approach 2:
The patent applies preliminary action by positioning the suction nozzle or collection bag at the cutting location before the peeled material can adhere to the glass film. The continuous collection mechanism is already in place and active during the cutting process, preventing the harmful effect before it occurs
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 effectively collects thread-like peeled materials without breaking them, preventing fragments from adhering to the glass film and ensuring efficient production of glass rolls with a smooth surface.
Implementation Method 1
cutting step of irradiating the glass film with a laser beam from a laser irradiation apparatus while conveying the glass film by the conveying step, to thereby separate the glass film into a non-product portion and a product portion
Data Source
AI summary
Provided is method of producing a glass roll, the method including: a conveying step of conveying a glass film (G) along a longitudinal direction thereof; a cutting step of irradiating the glass film (G) with a laser beam (L) from a laser irradiation apparatus (19) while conveying the glass film (G) by the conveying step, to thereby separate the glass film (G) into a non-product portion (Gc) and a product portion (Gd); and a take-up step of taking up the product portion (Gd) into a roll shape, to thereby form a glass roll (R). The cutting step includes winding a thread-like peeled material (Ge) generated from an end portion of the product portion (Gd) in a width direction around a rod-shaped collecting member (20a), to thereby collect the thread-like peeled material (Ge).