Movable Working Chamber Cover for Sealing Large Workpieces
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Solution Overview
Problem
Existing fluid processing machines face challenges in sealing the interior of the working chamber to prevent uncontrolled escape of fluids and material particles, particularly when machining large or long workpieces, which complicates the machining process and reduces the reliability and service life of the chamber.
Innovation Solution
A working chamber design with a cover unit comprising flexible, deflectable cover parts that can be guided along a guide track, allowing easy sealing and access for large workpieces, featuring a clamping device to maintain tensile stress on the cover parts, and deflection units to prevent rolling, ensuring reliable operation and extended service life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the working chamber is completely enclosed to prevent fluid and particle escape, then sealing reliability is improved, but accessibility for large workpieces deteriorates
Solution Approach 1:
The cover unit is designed to be movable between a closed position that seals the working chamber and an open position that provides accessibility. The guide track enables dynamic reconfiguration of the chamber opening, allowing the system to switch between sealed and accessible states as needed during operation.
Solution Approach 2:
The cover unit is divided into multiple cover parts that can move independently along the guide track. This segmentation allows partial opening or closing of the chamber, enabling accessibility for large workpieces while maintaining sealing where needed, rather than requiring the entire chamber to be fully open or closed.
2Ease of operation
If flexible cover parts are used to enable movement and sealing, then ease of operation is improved, but susceptibility to contamination and damage worsens
Solution Approach 1:
The cover parts are designed as flexible elements that can bend and move along the guide track while maintaining their sealing function. This flexibility allows the cover to adapt to movement requirements for accessibility while the continuous film structure prevents contamination penetration, unlike rigid segmented covers that would create gaps.
Solution Approach 2:
The clamping device applies tensile stress to the cover parts before they are subjected to operational loads. This pre-tensioning prevents the flexible material from sagging or deforming in ways that would compromise sealing, and protects against damage from accumulated debris by maintaining structural integrity throughout the cover's range of motion.
3Adaptability or versatility
If cover parts can be deflected to cover the access opening, then adaptability is improved, but risk of rolling and contamination worsens
Solution Approach 1:
The guide track serves as an intermediary structure that guides the cover parts through a controlled deflection path. Instead of allowing free rolling or uncontrolled movement, the guide track constrains the cover parts to follow a specific trajectory, enabling adaptability in covering the access opening while preventing uncontrolled rolling that would lead to contamination accumulation.
Data Source
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AI summary
The invention relates to a working chamber (10) for a fluid machining machine. The working chamber has an interior (14) which is accessible via an access opening (15). The access opening (15) is covered, at least during the machining of the workpiece (16), by a cover unit (25) comprising a movable cover (26). Cover parts (35, 36) adjoin the cover and can be deflected out of the access plane (E) in which the access opening (25) extends. When the cover parts (35, 36) are deflected, they are prevented from becoming coiled up.