Laser Cutting Sheet Metal Web Segmentation
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Solution Overview
Problem
Existing methods for producing long and complicated contour cuts in sheet metal webs are time-consuming and require large, costly apparatus due to the need for extensive movement paths of laser cutting units.
Innovation Solution
Divide the sheet metal web into overlapping processing strips with narrower working regions for each laser cutting device, allowing for sequential production of contour cuts by upstream and downstream units, enabling compact apparatus design and increased speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a single laser cutting device is used to produce long and complicated contour cuts, then the contour cut can be completed, but the production time increases and the apparatus size must be enlarged to accommodate broad movement paths
Solution Approach 1:
The patent divides the sheet metal web into multiple processing strips, each handled by a dedicated laser cutting device. This segmentation allows multiple contour cuts to be performed simultaneously on different strips, dramatically increasing production speed while maintaining cut quality through specialized narrow working regions for each device
2Manufacturing precision
If the laser cutting unit moves extensively in the direction of transport to complete long contour cuts, then the full contour can be produced, but the apparatus overall size increases and production cost increases
Solution Approach 1:
The contour cut task is segmented across multiple laser cutting devices, each responsible for a specific processing strip. This eliminates the need for a single device to traverse the entire length, allowing each device to have a compact working region while collectively covering the full web width
Solution Approach 2:
Instead of extending the apparatus in the direction of transport (one dimension), the patent distributes laser cutting devices across the width of the sheet metal web (another dimension). This dimensional shift allows parallel processing without increasing the apparatus length in the transport direction
3Productivity
If multiple laser cutting apparatuses are arranged along the conveying apparatus to produce different contour cuts, then production capacity increases, but the apparatus size and production cost increase significantly
Solution Approach 1:
Multiple laser cutting devices are merged into a single integrated apparatus that processes multiple processing strips simultaneously. This combining approach increases production capacity while avoiding the complexity and cost of separate apparatuses, as all devices share common support structures and control systems
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
This method allows for rapid and precise production of long contour cuts with a compact apparatus, reducing production time and cost while maintaining precision.
Implementation Method 1
a laser cutting device, of which the laser beam is always directed to the opening
Implementation Method 2
a laser beam radiated by the first laser cutting device
Data Source
AI summary
The invention relates to a method for producing a contour cut in a sheet metal web (BB) transported in a direction of transport (T) by means of a conveying apparatus (3). To accelerate the production of the contour cut, it is proposed in accordance with the invention to divide the sheet metal web (BB) into a plurality of overlapping processing strips and to assign successively two laser cutting units (10, 11) to at least two processing strips in the direction of transport (T).