Roll Welding Calibration Feedback for Container Seam Overlap
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Solution Overview
Problem
The existing methods for rolling seaming of container frames face challenges in maintaining a consistent seam quality due to lateral shifting of sheet metal edges during welding, requiring precise calibration and often resulting in unstable production and excessive wear on equipment.
Innovation Solution
A method and device that measure and adjust the calibration force to ensure the overlap is neither too small nor too large, using a force measuring device to evaluate the signal and indicate if the overlap width is within target values, allowing for easy detection and correction of faulty welds, and enabling the removal of defective container bodies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a too high calibration force is set to prevent lateral shifting of sheet metal edges, then the stability of the container frame during welding is improved, but the wear on the device increases and the manufacturing process becomes less stable
Solution Approach 1:
A force measurement device measures the calibration force exerted on the container frame during welding. The measured force is evaluated and used to adjust the calibration tool settings, creating a closed-loop feedback system that optimizes calibration force and reduces excessive wear on the device.
Solution Approach 2:
The calibration force is adjusted as a variable parameter based on measured values. By changing the calibration force parameter to optimal levels rather than using excessively high forces, the device wear is reduced while maintaining welding stability.
2Reliability
If a too high calibration force is set to prevent lateral shifting of sheet metal edges, then the stability of the container frame during welding is improved, but the manufacturing process becomes less stable and requires more test bodies for adjustment
Solution Approach 1:
The force measurement device provides real-time feedback on calibration force, enabling precise adjustment and reducing the need for extensive test bodies. This feedback mechanism stabilizes the manufacturing process by eliminating the need for trial-and-error adjustments.
Solution Approach 2:
The mechanical adjustment process based on operator experience is replaced with an automated measurement and evaluation system. This substitution provides objective, repeatable settings that improve manufacturing stability and reduce variability.
3Manufacturing precision
If precise calibration is performed using traditional methods requiring operator experience, then the seam quality is improved, but the complexity of operation increases and requires experienced operators
Solution Approach 1:
The system performs self-diagnosis and self-adjustment through automated force measurement and evaluation. The device automatically determines optimal calibration settings without requiring operator experience or manual adjustment, making operation simpler while maintaining high seam quality.
Solution Approach 2:
Manual calibration based on operator experience is replaced with automated measurement and control systems. This substitution eliminates the need for skilled operators while maintaining or improving seam quality through precise, objective measurements.
4Ease of operation
If the overlap of tin edges is not precisely controlled, then the ease of adjustment is improved, but the seam quality deteriorates and defective welds increase
Solution Approach 1:
The force measurement device provides feedback on the actual overlap condition through calibration force measurements. This feedback enables automatic adjustment of the overlap width to precise target values, maintaining high seam quality while simplifying operation through automated control.
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 approach simplifies the adjustment of calibration forces, reduces unnecessary wear, and ensures stable production by allowing operators with little experience to achieve suitable settings, thereby minimizing defective welds and maintaining production stability.
Implementation Method 1
the force measurement signal obtained in this way is used as an indication of the overlap width of the respective container frame
Implementation Method 2
The force exerted by the calibration ring on the container frame causes a counterforce, which is generated by the elastic deformation of the container frame material
Implementation Method 3
In the welding of the seam of container batches, the smallest possible overlap of the tin edges of the tire frame rounded sheet metal is generally sought
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
In an apparatus (1) for producing container frames (3-6), a welding device having a calibration tool (8) is provided. The force exerted on the calibration tool by the container frames is measured and evaluated as an indication of the width of overlap of the particular container frame. This makes it possible to set the calibration tool when setting up the apparatus and makes it possible, in the production of container frames, to remove container frames welded with too large or too small an overlap.