Glass Roll Laser Cutting Thread Removal
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Solution Overview
Problem
Existing methods for cutting glass films to produce glass rolls often result in thread-like peeled materials that can break and adhere to the glass surface, damaging the film during collection.
Innovation Solution
A method involving conveying the glass film longitudinally, cutting it with a laser beam, and using a rod-shaped collecting member with a leading device to wind and guide the peeled material without breaking it, ensuring continuous collection and preventing adherence to the product portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If gas blowing or suction is used to remove thread-like peeled material during cutting, then the peeled material is removed from the glass film, but the peeled material may break and adhere to the glass film surface, causing damage
Solution Approach 1:
The patent extracts the harmful thread-like peeled material from the glass film by introducing a dedicated collection mechanism. The collection member with collection protrusions actively captures and removes the peeled material immediately after laser cutting, preventing it from adhering to the glass film surface while maintaining continuous removal without causing breakage.
Solution Approach 2:
The patent introduces a collection member as an intermediary between the laser cutting process and the glass film surface. This collection member, equipped with collection protrusions, serves as a mediator that intercepts the thread-like peeled material before it can contact and damage the glass film, thus protecting the glass surface integrity.
2Object-generated harmful factors
If conventional removal methods (gas blowing, suction, brush, baffle plate) are used, then peeled material is removed, but continuous collection is not achieved leading to material breakage
Solution Approach 1:
The patent implements continuous collection of thread-like peeled material through a collection member that operates continuously during the laser cutting process. The collection protrusions continuously capture and transport the peeled material away from the glass film, ensuring uninterrupted removal without breaks that would cause material fragmentation.
Solution Approach 2:
The patent replaces conventional mechanical removal methods (gas blowing, suction, brush, baffle plate) with a novel mechanical collection system featuring a collection member with collection protrusions. This new mechanical system actively engages and transports the peeled material in a controlled manner, achieving more effective and continuous removal compared to the previous methods.
3Manufacturing precision
If laser cutting is performed on glass film, then precise cutting is achieved, but thread-like peeled material is generated that requires removal
Solution Approach 1:
The patent extracts the harmful thread-like peeled material generated by precise laser cutting through a dedicated collection mechanism. The collection member with collection protrusions is positioned to capture the peeled material immediately at the cutting zone, removing it from the system before it can cause any harm to the precisely cut glass film edges.
Solution Approach 2:
The patent converts the harmful effect of thread-like peeled material into a manageable byproduct by implementing a collection system that captures and transports the material in a controlled manner. The collection protrusions guide the peeled material into collection grooves, transforming what would be a damaging fragment into a controlled, removable element that does not compromise the cutting precision.
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 damage to the glass film and enabling efficient production of glass rolls.
Implementation Method 1
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
Implementation Method 2
moving the melt-cut portion away from a laser beam irradiation region to cool the portion. In this case, when the melt-cut portion is cooled, a substantially thread-like peeled material is generated
Data Source
AI summary
Provided is a method of producing a glass roll 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 a step of 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 (23), and leading the wound thread-like peeled material (Ge) in a predetermined conveying direction (PX) by a leading device (24).