Carousel Labelling Machine Coupling Mechanism for Wear Reduction
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Solution Overview
Problem
Existing labelling machines with carousels experience significant wear and overheating due to continuous friction in the friction-clutch coupling, which affects the precise positioning and orientation of asymmetrical containers for accurate label placement.
Innovation Solution
The labelling machine incorporates a design where the coupling element moves between coupled and uncoupled positions based on the tooth's position relative to the container's recess, allowing free rotation during label placement and minimizing friction when not engaged, thus reducing wear and overheating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a friction-clutch coupling is used to connect the plate to the carrousel, then the container can be securely held and rotated for labelling, but the continuous friction causes significant wear and overheating of the components
Solution Approach 1:
The patent applies the dynamics principle by making the coupling element mobile rather than fixed. The coupling element can dynamically transition between coupled and uncoupled positions, allowing the system to adapt its friction characteristics based on operational needs. This dynamic adjustment reduces continuous friction wear while maintaining secure container holding when required.
Solution Approach 2:
The patent implements periodic action through the alternating coupling and uncoupling of the coupling element. The coupling is engaged only when container positioning and rotation are needed, and disengaged during other phases of the labelling cycle. This periodic engagement minimizes cumulative friction wear and heat generation while ensuring reliable container control when active.
2Manufacturing precision
If the coupling element remains continuously engaged to ensure precise container orientation, then positioning accuracy is maintained, but friction-induced wear and overheating increase
Solution Approach 1:
The coupling element is engaged periodically only during the specific phases when container orientation and label placement precision are required. During other phases, the coupling is disengaged, allowing the container to be freely positioned or removed. This periodic engagement maintains manufacturing precision when needed while minimizing thermal accumulation and wear.
Solution Approach 2:
The patent extracts the friction-generating coupling function from a continuous state and implements it only when necessary. The coupling element can be removed from the engaged state during phases where precise positioning is not required, thereby eliminating unnecessary friction and heat generation while preserving positioning accuracy during critical operations.
3Stability of the object's composition
If the tooth is constantly pressed against the container bottom to maintain orientation, then container stability is improved, but the friction between the tooth and container increases wear
Solution Approach 1:
The tooth's pressing action against the container bottom is applied periodically only when container orientation stability is required during the labelling process. During other phases, the tooth is retracted or not engaged, eliminating continuous friction contact. This periodic engagement maintains orientation stability when needed while minimizing material wear on both the tooth and container bottom.
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
This design reduces wear and overheating on the machine's components, ensuring precise and efficient label placement on asymmetrical containers while maintaining the machine's operational integrity.
Implementation Method 1
a mobile part, positioned inside the semi-mobile part. The mobile part can rotate freely and independently of the other parts and comprises a projecting tooth, mobile relative to the mobile part thanks to a spring or other elastic means.
Data Source
AI summary
A labelling machine with a carrousel comprises a carrousel (3) and a plurality of plates (4), mounted on the carrousel (3). Each plate (4) comprises supporting means (13) and a dragging element (14), comprising a tooth (15) substantially insertable in a recess made in the bottom of the container supported by the supporting means (13). The tooth (15) is off-centre relative to the first axis of rotation and movable relative to the supporting means (13) between an engaged position, in which the tooth (15) is substantially inserted in the recess, and a disengaged position, in which the tooth (15) is not associated with the recess. The machine (1) comprises for each plate (4) coupling means (41), operatively associated with the tooth (15), for coupling the supporting means (13) to the carrousel (3) when the tooth (15) is in the disengaged position, obstructing rotation of the supporting means (13) relative to the carrousel (3), and for uncoupling the supporting means (13) from the carrousel (3) when the tooth (15) is in the engaged position, allowing substantially free rotation of the supporting means (13) relative to the carrousel (3).