Master-Slave Labelling Machine for Continuous Production
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Solution Overview
Problem
Conventional labelling machines require complete shutdown when one of the labelling groups needs to be interrupted, leading to a stop in production and incomplete labelling of articles, as existing solutions do not allow for seamless continuation of labelling without affecting throughput.
Innovation Solution
A labelling machine with a diverting device and control unit that allows one labelling group to act as a 'master' and the other as a 'slave', enabling selective operation and seamless transition between configurations to maintain continuous labelling without interrupting the production line, even during reel changes or when labels are not properly applied.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If one labelling group is interrupted for reel change or correction, then the operation of that labelling group can be maintained, but the overall production stops and throughput decreases
Solution Approach 1:
The labelling machine is divided into two independent labelling groups (first and second) that can operate separately. When one group needs interruption for reel change or correction, the other group continues operating, segmenting the production flow to maintain overall throughput while allowing maintenance operations on individual segments.
Solution Approach 2:
The system dynamically changes operational parameters by switching between single-group operation and dual-group operation modes. The control unit adjusts the operational state of each labelling group independently, enabling parameter changes that maintain productivity during maintenance operations.
2Productivity
If both labelling groups operate simultaneously, then productivity increases, but the complexity of controlling and coordinating both groups increases
Solution Approach 1:
A control unit acts as an intermediary between the two labelling groups, coordinating their operations and managing the switching between single-group and dual-group modes. This intermediary simplifies the control architecture by centralizing the coordination logic rather than requiring complex direct communication between all components.
Solution Approach 2:
The system employs dynamic configuration where the operational state of each labelling group can change during operation. The control unit enables seamless transition between different operational configurations (both groups active, one group active, neither group active) based on real-time requirements, making the system adaptable rather than static.
3Ease of operation
If a single labelling group operates alone, then the system is simpler to control, but the output rate decreases
Solution Approach 1:
Each labelling group is designed as a universal unit capable of operating independently or in coordination with the other. This multi-functionality allows the system to maintain simplicity when one group operates alone while preserving the capability for high-productivity dual-group operation when needed, without requiring different hardware configurations.
Data Source
AI summary
A labelling machine for applying a first label and a second label onto a first article and a second article is disclosed. The labelling machine comprises a first conveyor for conveying a succession of the first article and the second article along a path; a first labelling group, which can be selectively arranged in a first operative configuration; and gap creating means adapted to create a first gap, which is arranged inside the succession and is bounded between the first article and the second article. The first labelling group is selectively arrangeable in a first rest configuration. The labelling machine further comprises a second labelling group, which can be selectively moved between a second rest configuration and a second operative configuration, in which the second labelling group transfers, in use, the second label to the second article.