Aseptic Container Forming Sterilizing Arrangement
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Solution Overview
Problem
Existing production lines for aseptic containers are complex and laborious to design and mount, lacking flexibility due to the need for intricate insulation to maintain a sterile environment above the sheet material while preventing contamination from the environment below.
Innovation Solution
An apparatus with a sterilizing arrangement that creates a substantially aseptic environment both above and below the sheet material, allowing for the use of traditional advancing systems and enabling flexible arrangement of operating units, such as forming, filling, and welding stations, without the need for sealing engagement with the sheet material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sealing engagement with sheet material is used to prevent contamination, then sterility is maintained, but device complexity increases and flexibility decreases
Solution Approach 1:
The patent extracts the sealing function from the advancing system by introducing a separate sterilizing arrangement. The chains no longer need to sealingly engage with the sheet material, as contamination prevention is handled by the sterilizing arrangement that treats the spaces above and below the sheet material independently.
Solution Approach 2:
The sterilizing arrangement acts as an intermediary between the non-sterile environment and the sheet material processing areas. It creates sterilized spaces above and below the sheet material without requiring the advancing chains to directly seal against the material, thus decoupling the transmission function from the sealing function.
2Reliability
If insulation between spaces above and below sheet material is implemented, then contamination is prevented, but production line flexibility is reduced
Solution Approach 1:
The patent segments the sterilization function into separate zones above and below the sheet material, each independently treated by the sterilizing arrangement. This allows different parts of the production line to be configured flexibly while maintaining sterility in each segment without requiring continuous insulation throughout the entire line.
Solution Approach 2:
The patent replaces the mechanical insulation system with a sterilizing arrangement that uses chemical or physical sterilization methods. This substitution allows for greater flexibility in production line configuration, as the sterilizing arrangement can be applied to specific zones rather than requiring continuous physical insulation barriers.
3Device complexity
If traditional grippers are used for advancing sheet material, then device complexity is reduced, but sterility maintenance becomes difficult
Solution Approach 1:
The sterilizing arrangement serves as an intermediary that protects the sterility of the processing spaces even when traditional non-sealing grippers are used. The chains and grippers operate in a sterile environment created by the sterilizing arrangement, allowing simple advancing mechanisms to function without compromising contamination prevention.
Data Source
AI summary
An apparatus for obtaining containers from a sheet material includes an operating unit for processing the sheet material. The operating unit includes an upper operating part for interacting with an upper surface of the sheet material and a lower operating part for interacting with a lower surface of the sheet material. The apparatus further includes a sterilizing arrangement for sterilizing a space adjacent to the upper operating part and to the lower operating part, so as to create a substantially aseptic environment above and below the sheet material.