Automated Reference Wheel Positioning for Mash Seam Welding
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Solution Overview
Problem
The existing methods for seam resistance welding of continuously moving steel strips, particularly in the 'mash welding' process, face challenges in maintaining precise positioning of the edges to be welded, especially for thinner strips, which requires frequent manual adjustments and halts in the production line, compromising productivity and safety.
Innovation Solution
An automated measuring device and method for positioning the reference wheel, allowing for precise adjustment without manual intervention, using a tiltable frame with a rotating roller and position detection device to ensure the wheel's correct alignment with a reference plane, adaptable for different wheel diameters and wear detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual adjustment of the reference wheel is performed to maintain positioning precision, then manufacturing precision is improved, but productivity deteriorates due to production line halts
Solution Approach 1:
The system performs self-positioning of the reference wheel through an automated feedback mechanism. A sensor detects the actual position of the reference wheel, and a controller automatically adjusts the wheel's position to match the reference plane, eliminating the need for manual intervention and production line halts.
Solution Approach 2:
The manual mechanical adjustment process is replaced with an automated electromechanical system. The sensor provides electronic detection of wheel position, and an actuator performs automatic mechanical adjustment, substituting the operator's manual actions with an automated control system.
2Manufacturing precision
If manual adjustment procedures are implemented to ensure positioning accuracy, then manufacturing precision is improved, but safety deteriorates due to operator exposure to moving machinery
Solution Approach 1:
The reference wheel positioning is performed automatically by the system itself through sensor detection and automated adjustment mechanisms, completely eliminating operator intervention in the hazardous zone and thus removing safety risks associated with manual adjustment.
Solution Approach 2:
A sensor acts as an intermediary between the reference wheel and the control system, enabling indirect measurement and adjustment of wheel position without requiring direct operator contact with the moving machinery, thereby eliminating safety hazards.
3Manufacturing precision
If frequent adjustments are made to account for wheel wear, then manufacturing precision is improved, but loss of time increases due to repeated intervention
Solution Approach 1:
A sensor continuously monitors the position of the reference wheel and provides feedback to a controller. The controller automatically adjusts the wheel position to compensate for wear, creating a closed-loop system that maintains precision without requiring periodic manual intervention or production line stoppages.
Solution Approach 2:
The automated feedback and adjustment system operates continuously during production, maintaining reference wheel positioning precision throughout operation without interruption. This eliminates the periodic loss of time associated with manual adjustments while sustaining manufacturing precision.
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 continuous operation of the production line, enhances safety by eliminating manual adjustments, and ensures high-quality welds by maintaining precise positioning of the wheels, regardless of wear or diameter changes, thereby improving productivity and adaptability.
Implementation Method 1
a position detection and measuring device (38) fixed to said frame (3)
Data Source
Figure 1~2
Figure 3a
Figure 3b
AI summary
The present invention describes a measuring method and device adapted for the positioning of a wheel adapted for mash seam resistance welding for the purpose of butt-joining strips of steel on continuous processing lines, comprising the following steps: positioning a rotating roller (34) which is fastened to a movable frame (3) in a measuring position, the measuring position being vertically below a reference wheel (MS); continuously vertically lowering (A) the reference wheel (MS) so that its lower surface comes into contact with the rotating roller (34) and produces a bearing force on the roller (34); continuously moving the roller (34) in the direction of lowering (A); repeatedly measuring a distance (D2) between an index (37), which is secured to a measuring arm (33) of the frame (3), and an articulated column (32) of the frame (3) during the continuous movement; comparing the distance (D2) with a distance threshold for each of the repeated measurements until the wheel (MS) reaches a first operating position in which the distance (D2) is equal to a predefined factor of the distance threshold; and recording the first operating position as a reference point in a system for the vertical movement of the reference wheel (MS).