Separating Device Wear Reduction via Dynamic Holding
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Solution Overview
Problem
Existing separating devices for elongate workpieces, such as pipes, experience increased wear leading to reduced service life, necessitating a method to extend the operational lifespan of these devices.
Innovation Solution
The method involves partially opening the holding device while the separating knife is within the workpiece's cross-section during the cutting process, reducing contact and wear on the cutting blade, and synchronizing the movements of the holding device and knives using an eccentric disk or electronic control to optimize the cutting cycle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the holding device remains closed during the entire cutting cycle, then the workpiece is securely held without play, but the separating knife experiences increased wear and reduced service life
Solution Approach 1:
The holding device transitions from a static closed position to a dynamic state where it opens partially during the cutting cycle. Specifically, the holding device is opened at least partially when the separating knife is at least partially in the cross section of the workpiece, reducing contact and wear on the knife while maintaining workpiece security when needed.
2Duration of action of stationary object
If the holding device is opened completely after cutting, then the separating knife has minimal contact with the workpiece during reset, but the workpiece may shift or become unstable during the process
Solution Approach 1:
Rather than opening the holding device completely, the invention applies partial opening - the holding device is opened at least partially during the cutting process. This partial action is sufficient to reduce wear on the separating knife while maintaining enough constraint to prevent workpiece shift or instability during the critical cutting phase.
Data Source
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AI summary
The method involves closing a retention device (2) for holding a workpiece to-be-separated. The workpiece is separated (4) by displacing a separating knife from a starting position to a separating position through a cross-section of the workpiece. The retention device is partially opened (6) while the separating knife is partially in the cross-section of the workpiece. The retention device is partially opened before or during resetting of the separating knife from the separation position to the starting position. An independent claim is also included for a separating device for separating a workpiece.