Aseptic Apparatus for Aluminium Receptacles Using Segmented Closing
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Solution Overview
Problem
The challenge lies in developing an aseptic bottling line for Aluminium receptacles that ensures sterility without increasing the overall complexity, particularly due to the unique closure mechanism for Aluminium bottles which lacks a thread and requires a more complex capping machine.
Innovation Solution
The proposed aseptic apparatus includes a filling unit, a transfer star-wheel, a closures placing station, and a closing unit, with sterile air supply systems to maintain pressure differences and prevent contamination. The apparatus uses a concave closure that is placed and applied around the Aluminium receptacle neck, with a tunnel and guide element to ensure sterility and easy maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a traditional capping machine is used for Aluminium receptacles, then the closure can be applied, but the device complexity increases significantly due to the unique closure mechanism lacking threads
Solution Approach 1:
The closing operation is divided into two separate stations: a closures placing station that simply places the concave closure onto the receptacle mouth, and a closing unit that applies the closure around the neck. This segmentation allows each station to have a simplified function, avoiding the need for a complex traditional capping machine while achieving the same closure application result
Solution Approach 2:
A tunnel is introduced as an intermediary element connecting the filling unit and closing unit. This tunnel creates a controlled pressure environment that facilitates the closing operation without requiring complex mechanical mechanisms, thereby reducing device complexity while maintaining closure application capability
2Reliability
If pressure differences are maintained between chambers to prevent contamination, then sterility is improved, but the system complexity increases due to multiple pressure control systems
Solution Approach 1:
Different pressure conditions are applied to different zones: the filling unit operates at first pressure, the tunnel maintains a second pressure lower than the first, and the closing unit operates at third pressure. This local differentiation of pressure conditions prevents contamination through controlled pressure gradients while keeping each zone's pressure control relatively simple and independent
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
The apparatus effectively maintains sterility throughout the filling and closing process for Aluminium receptacles, preventing contamination and ensuring the quality of sensitive food products, while also simplifying maintenance operations.
Implementation Method 1
The first chamber may be at a first pressure and the second chamber may be at a second pressure that is lower than the first pressure
Data Source
AI summary
An aseptic apparatus for filling and closing an aluminium receptacle. The aseptic apparatus may include a filling unit, which includes a first chamber, and at least one transfer star-wheel downstream the filling unit. The aseptic apparatus may also include a closures placing station arranged on a first zone of the transfer star-wheel that is located beside the filling unit. The closures placing station may be configured to place a concave closure onto a mouth of each receptacle. The aseptic apparatus may also include a closing unit arranged downstream from the transfer star-wheel. The closing unit may include a second chamber housing a closing machine that is configured to apply each concave closure around a neck of the corresponding receptacle. The first chamber may be at a first pressure and the second chamber may be at a second pressure that is lower than the first pressure.