Pivoting Cutting Table for Steel Slab Oxy-Cutting
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Solution Overview
Problem
Existing methods for slitting steel slabs using oxy torches are not suitable for high-volume, high-quality manufacturing operations, as they lack efficiency and precision in cutting and deburring processes.
Innovation Solution
A cutting table with a slab loading face that pivots from a horizontal to an oblique position, equipped with a dual torch system and deburring devices, allows for precise flame cutting and simultaneous deburring, with an air curtain system and spark shields to protect equipment and maintain cut quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional oxy cutting torch methods are used for slitting steel slabs, then the cutting process can be performed, but the manufacturing efficiency and cut quality are insufficient for high-volume production
Solution Approach 1:
The cutting table is designed to pivot between a horizontal loading position and an oblique cutting position (10-20 degrees from vertical). This dynamic repositioning allows the slab to be loaded horizontally for ease of handling, then tilted to the optimal cutting angle for high-speed torch movement and quality cuts, resolving the contradiction between manufacturing efficiency and cut quality
Solution Approach 2:
The system separates the loading function (horizontal position) from the cutting function (oblique position) by using a pivoting table. This segmentation allows each phase to be optimized independently: horizontal for easy slab placement and oblique for efficient torch cutting, thereby improving both productivity and manufacturing precision
2Ease of operation
If the table is positioned horizontally for loading, then slab handling is easy, but cutting efficiency and quality deteriorate
Solution Approach 1:
The table dynamically changes orientation based on operational phase: horizontal (0 degrees) during loading for maximum ease of operation, then pivots to oblique position (10-20 degrees from vertical) during cutting for optimal productivity. This dynamic adaptation resolves the contradiction between ease of operation and cutting efficiency
3Productivity
If the table is positioned obliquely for cutting, then cutting efficiency and quality improve, but slab loading becomes difficult
Solution Approach 1:
The table is preliminarily positioned in the horizontal loading position before slabs are placed on it. This preliminary horizontal positioning makes slab loading easy, then the table is repositioned to the oblique cutting position only after loading is complete, thereby achieving both easy loading and efficient cutting
4Device complexity
If a single torch is used for cutting, then the device is simpler, but the cutting speed and productivity are limited
Solution Approach 1:
The cutting operation is segmented into two independent torches that can operate simultaneously on opposite sides of the slab. This segmentation doubles the cutting productivity compared to a single torch, while each individual torch remains relatively simple in design, thus resolving the contradiction between device complexity and cutting speed
5Device complexity
If deburring is performed separately after cutting, then the cutting process is simpler, but additional time and operations are required
Solution Approach 1:
The deburring device is merged with the cutting table assembly and positioned to operate simultaneously with the torch during the cutting process. This combining of cutting and deburring operations into a single integrated process eliminates separate deburring steps, reducing total processing time while maintaining reasonable device complexity
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 solution enables high-quality, efficient slitting of steel slabs with clean, smooth edges, reducing the need for additional finishing operations and enhancing the overall manufacturing process by ensuring precise control and protection during the cutting process.
Implementation Method 1
flame cutting process utilizing an oxy torch
Implementation Method 2
air curtain system between the first and second torches
Data Source
AI summary
A cutting table assembly for oxy cutting comprising a cutting table having a slab loading face and mounted for pivotal movement between a loading position in which the loading face is generally horizontal and a cutting position in which the face is oblique, and a pair of torches mounted on the table. The loading face is constituted by a pair of loading subfaces separated by a slot and the torches are mounted in the slot below the loading face. The torches are positioned at opposite ends of the slot prior to the initiation of the cutting action and, upon the initiation of the cutting action, move toward each other and cut into opposite ends of the slab. A pair of gantries are mounted on the table and each carries a deburring device positioned in overlying opposition to a respective torch. Each gantry further includes a plurality of spaced downwardly directed nozzles which are supplied with compressed air to generate an air curtain.