Laser Cutting Device Curved Suction Unit Impurity Removal

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing laser cutting devices face challenges in efficiently removing impurities generated during the cutting process of flexible display substrates, which can affect the precision and quality of the cutting process.

Innovation Solution

A laser cutting device is designed with a suction unit that includes a curved surface and a nozzle system to effectively capture and discharge impurities along the curved surface, utilizing a gas supply to enhance the removal of impurities through the Coanda effect, and a collection unit to filter and discharge the impurities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a conventional laser cutting device is used, then the cutting process can be performed, but impurities are not effectively removed, affecting cutting precision and quality

Engineering Contradiction:
Improvecutting precisionVSAvoidimpurity accumulation
Core Design Contradiction:
Manufacturing precisionVSObject-generated harmful factors

Solution Approach 1:

The suction unit is designed to extract and remove impurities generated during laser cutting from the cutting area. The suction main body with its hollow region and strategically positioned exhaust parts capture impurities at their source, preventing them from affecting cutting precision while allowing the laser cutting process to continue effectively

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

Gas is introduced as an intermediary substance to carry impurities away from the cutting area. The gas flows through the hollow region of the suction main body, entraining impurities and transporting them through the exhaust parts to the collection unit, thereby mediating the removal process without directly interfering with the laser cutting

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If impurities are not removed during laser cutting, then the device structure remains simple, but cutting quality deteriorates due to impurity accumulation

Engineering Contradiction:
Improvecutting qualityVSAvoiddevice structure
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The suction unit is merged with the laser main body through coupling at the header, integrating the impurity removal function into the existing laser cutting device structure. The collection unit is connected via a connection pipe, creating a unified system that maintains cutting quality without requiring completely separate removal equipment

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The hollow region of the suction main body serves multiple functions: it provides a passage for gas flow, creates suction zones through its exhaust parts, and facilitates the transport of impurities. This multi-functionality reduces the need for additional separate components, balancing device complexity with cutting quality requirements

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Manufacturing precision

If a suction system is added to remove impurities, then cutting precision is maintained, but the device complexity increases

Engineering Contradiction:
Improveimpurity removal efficiencyVSAvoidsuction unit structure
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The suction unit is segmented into distinct functional components: the suction main body with hollow region for gas flow, multiple exhaust parts positioned at different locations for comprehensive impurity capture, and connection points for the collection unit. This segmentation allows each component to perform its specific function efficiently while maintaining overall system manageability

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The exhaust parts are nested within or on the surface of the suction main body, with the hollow region providing a nested passage for gas flow. The connection pipe connects to the suction main body through penetrated portions, creating a nested arrangement that maximizes impurity removal coverage while minimizing the overall space occupied by the suction system

Inventive Principle:
Principle #7Nested doll (Nesting)

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 device ensures precise cutting of flexible display substrates by effectively removing impurities, maintaining the quality of the cutting process and enabling the production of multiple display devices simultaneously.

Implementation Method 1

utilizing a gas supply to enhance the removal of impurities through the Coanda effect

Methodology Applied
Scientific EffectCoanda effect: Coanda Effect

Implementation Method 2

a laser beam generation unit emitting a laser beam

Methodology Applied
Scientific EffectLaser: Laser

Data Source

PatentUS10005155B2Laser cutting device
Publication Date: 2018.06.26 SAMSUNG DISPLAY CO LTD
  • US10005155B2 patent drawing
  • US10005155B2 patent drawing
  • US10005155B2 patent drawing

AI summary

A laser cutting device, including a laser beam generation unit emitting a laser beam; an optical system on a traveling path of the laser beam; a laser main body providing a passage through which the laser beam travels towards a substrate after passing through the optical system; a suction unit coupled to a header of the laser main body and sucking impurities, the suction unit including a curved surface therein; and a collection unit connected to the suction unit and collecting discharged impurities, the impurities being discharged to the collection unit along the curved surface inside the suction unit.