Dual-Torch Scrap Trimming for In-Line Metal Sectioning
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Solution Overview
Problem
Current methods for sizing and trimming metal pieces in the metals industry are inefficient, requiring separate operations for scrap removal and sectioning, which are time-consuming and costly in terms of labor and equipment.
Innovation Solution
A trimming and sizing apparatus equipped with a cutting assembly featuring a first trimming cutting torch and a second sectioning cutting torch that rotates in an arc, allowing simultaneous removal and sectioning of scrap metal pieces during the cutting process, enabling the production of smaller, manageable pieces from long, narrow scrap metal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If separate operations are used for sizing/trimming and sectioning of scrap metal, then each operation can be performed with dedicated equipment, but the production rate decreases and labor and equipment costs increase
Solution Approach 1:
The patent combines two separate operations (sizing/trimming and sectioning) into a single integrated apparatus. The cutting assembly includes both a trimming torch for removing scrap from the metal piece and a sectioning torch for cutting the removed scrap into smaller pieces. Both torches are mounted on the same carriage that travels along the travel way, allowing simultaneous operation during one pass over the metal piece, thereby eliminating the need for separate equipment and operations.
Solution Approach 2:
The carriage and cutting assembly are designed to perform multiple functions. The same carriage that positions and moves the trimming torch also positions and moves the sectioning torch. The boom structure supports both torches and allows independent positioning of each torch relative to the metal piece, enabling the system to handle both trimming and sectioning tasks with a single multi-functional apparatus.
2Ease of operation
If manual torch cutting or shearing is used for sectioning scrap metal, then the equipment can be simple, but the operation is time-consuming and adds labor cost
Solution Approach 1:
The sectioning operation is performed continuously during the same carriage traversal used for trimming. As the carriage moves along the travel way, the sectioning torch continuously cuts the scrap metal into smaller pieces without interruption. This eliminates the need for separate batch processing or manual intervention between trimming and sectioning, maintaining continuous productive action throughout the operation.
Solution Approach 2:
The apparatus automatically performs sectioning of the scrap metal immediately after it is removed by the trimming torch. The sectioning torch is positioned and controlled by the same carriage system, requiring no separate manual operation. The system serves itself by automatically cutting the scrap into manageable pieces as part of the normal trimming process, eliminating manual labor and associated time losses.
3Device complexity
If a single cutting torch is used for trimming, then the equipment is simpler, but the scrap pieces remain long and narrow requiring additional sectioning
Solution Approach 1:
The cutting assembly integrates two torches (trimming and sectioning) into a single operational unit mounted on the same carriage. This merging allows both trimming and sectioning functions to be performed simultaneously during one pass, transforming the scrap metal from long and narrow into smaller, more manageable pieces in a single operation, thereby improving overall processing efficiency without requiring multiple separate equipment setups.
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 solution enables higher production rates with reduced labor and equipment costs by completing the sizing/trimming and sectioning of scrap metal in a single step, producing smaller, parallelogram-shaped scrap pieces that are more suitable for recycling.
Implementation Method 1
a cutting torch assembly extending from the boom and comprising a first trimming cutting torch and a second sectioning cutting torch
Data Source
AI summary
A method of trimming and sizing a metal piece. A trimming and sizing apparatus including a travel way, at least one cutting torch assembly having a trimming cutting torch and sectioning cutting torch, and at least one table. A substantially rectangular metal piece is placed on the table. The cutting assembly is traversed along the travel way and the trimming cutting torch makes a longitudinal cut in the metal piece creating a scrap piece. Simultaneously with the cutting of the scrap piece by the trimming cutting torch, the sectioning cutting torch is rotated in an arc around the trimming cutting torch such that the sectioning cutting torch is simultaneously moved in the longitudinal direction and in an arc around the trimming cutting torch creating a cut in the scrap piece such that a sized scrap piece having a desired length/weight is completely removed from the scrap piece.