Crown has patented an apparatus for controlling welding stations used for cylindrical can bodies. The invention includes a weld monitor, controller, and adjustment mechanisms to ensure desired weld quality by adjusting the calibration unit along three axes based on monitored weld thickness. GlobalData’s report on Crown gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Crown, was a key innovation area identified from patents. Crown's grant share as of February 2024 was 70%. Grant share is based on the ratio of number of grants to total number of patents.
Apparatus for controlling welding station for cylindrical can bodies
A recently granted patent (Publication Number: US11904414B2) discloses an apparatus for controlling a welding station used for welding seams along cylindrical can bodies. The apparatus includes a weld monitor to monitor welded seams and provide an electrical signal indicative of weld thickness at predetermined points along the seam length. A controller receives this signal and generates control electrical signals, which are then used by adjustment mechanisms to adjust the calibration unit along three different adjustment axes to achieve the desired cylinder overlap and weld quality. The apparatus incorporates a decision system to calculate adjustments based on the comparison of actual weld thickness with target thickness at predetermined points, ensuring precise control over the welding process.
Furthermore, the patent also describes a method for controlling a welding station using the same apparatus. The method involves monitoring welded seams, generating control electrical signals based on the weld quality signal, and providing these signals to adjustment mechanisms to adjust the calibration unit for the desired cylinder overlap. The method ensures closed-loop control of weld thickness by adjusting the radial position of the roller of the calibration unit, the longitudinal position along an adjustment axis, and even the vertical position using a dual-thread system. By comparing actual weld thickness with target thickness at various points along the seam length, the method enables precise adjustments to maintain the desired weld quality consistently. Overall, the patent presents a comprehensive system and method for controlling welding stations to achieve optimal weld quality in cylindrical can body manufacturing processes.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
