Can Seaming and Filling Calibration for Low-Oxygen Packaging
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Solution Overview
Problem
Existing container processing machinery, particularly for beverage cans, faces challenges in achieving consistent quality output, especially in smaller batch productions, due to the need for intensive operator interaction and limited capability to handle varying can sizes and lid types, with issues in oxygen exclusion and process calibration.
Innovation Solution
A can seaming system with a spindle assembly and seaming roller assembly, equipped with actuators and sensors for precise calibration, along with a modular design capable of handling multiple can sizes and types, and a filling apparatus that minimizes oxygen exposure using inert gas purging and controlled filling processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual adjustment and operator interaction are used in open fill machines, then flexibility in handling different can sizes is improved, but manufacturing precision and quality consistency deteriorate
Solution Approach 1:
The patent replaces manual mechanical adjustment with automated sensing systems (optical sensors, capacitive sensors) and computer-controlled mechanisms. The system automatically detects can dimensions and adjusts filling parameters electronically, eliminating operator interaction while maintaining both adaptability to different can sizes and consistent quality output through precise digital control
Solution Approach 2:
The filling machine performs self-calibration and self-adjustment through integrated sensors that automatically detect can characteristics and modify operating parameters without external intervention. The system serves itself by continuously monitoring and adjusting filling depth, speed, and pressure based on real-time can measurements, ensuring consistent quality across varying can dimensions
2Manufacturing precision
If counter pressure techniques are used in high-volume machines, then manufacturing precision and quality consistency are improved, but device complexity and operator skill requirements increase
Solution Approach 1:
The patent introduces an intermediary control system that manages the complexity of counter-pressure processing. A microprocessor-based controller acts as an intermediary between the complex pressure control mechanisms and the operator, automatically managing pressure sequences, timing, and coordination of multiple actuators. This intermediary layer maintains high manufacturing precision while shielding operators from the underlying system complexity
Solution Approach 2:
The complex counter-pressure filling process is segmented into distinct automated stages (can positioning, closure application, pressure application, filling, pressure release). Each stage is independently controlled by dedicated sensors and actuators, allowing the system to manage complexity through modular sequential operations while maintaining overall process precision and quality consistency
3Productivity
If open fill machines are used for small batch production, then productivity for craft brewers is improved, but manufacturing precision and oxygen exclusion deteriorate
Solution Approach 1:
The patent implements an inert atmosphere system that floods the filling chamber with carbon dioxide or nitrogen gas during the filling process. This creates an oxygen-free environment that prevents oxidation of the beverage, maintaining high manufacturing precision for oxygen exclusion. The inert gas atmosphere is automatically activated for all filling operations, ensuring consistent quality protection regardless of batch size while maintaining the productivity benefits of open-fill machinery
Solution Approach 2:
The system performs preliminary purging of the filling chamber with inert gas before each filling operation begins. This preliminary action establishes the oxygen-free environment in advance, ensuring that no oxygen is present when the can is opened and filled. The pre-purging sequence is automatically executed for every can, maintaining consistent oxygen exclusion quality while preserving the rapid cycling capability needed for small batch productivity
Data Source
AI summary
Container processing equipment, particularly for processing of food/beverage cans requires filling and sealing. A can seaming system may include interchangeable seaming chucks. A seaming system may be calibrated by sensing a relative position between a seaming spindle and a seaming roller. Conveyor systems may move container axes along a conveyor path irrespective of container size. Conveyors may include container bearers that are mounted for rotational motion allowing containers to enter and/or exit the conveyor. In beverage packaging, inert gas and beverage may be introduced into a container through a single fill conduit. A fill system may include a moving fill conduit arranged to deliver beverage to a lower region of the container. A closure system may include bulk and intermediate closure holders, for feeding closures to a closure head.