Counter-Cutting Bar Segmentation for Label Length Adaptability
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Solution Overview
Problem
Existing label cutting devices require complex conversions and increased downtime due to issues with label length compatibility, where the beginning of the label may not be securely held by the vacuum roller, leading to inefficient operation and incompatibility with newer devices.
Innovation Solution
A cutting device with a counter-pressure roller and a counter-cutting bar of varying width, featuring multiple openings for secure label hold and adjustable cutting position, allowing for label cutting of any length without extensive device modifications, and incorporating a control system to shift the cutting position for optimal label alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the counter-cutting bar is removed and replaced with a bar with openings to enable vacuum hold at unfavorable label lengths, then the label holding reliability is improved, but the device complexity and conversion work increase significantly
Solution Approach 1:
The counter-cutting bar is segmented with multiple openings distributed along its length, allowing different sections to engage with the vacuum roller at different positions. This segmentation enables the system to handle various label lengths without requiring complete bar replacement, reducing conversion work while maintaining reliable vacuum holding.
Solution Approach 2:
The counter-cutting bar with multiple openings serves multiple functions: it provides vacuum holding at various positions along the label strip, accommodates different label lengths, and works with the vacuum roller without requiring device modifications. This multi-functionality eliminates the need for separate conversion procedures for different labeling scenarios.
2Reliability
If more openings are added to the vacuum roller to improve label holding, then the label holding reliability is improved, but the cleaning time and machine downtime increase
Solution Approach 1:
Instead of adding numerous openings to the vacuum roller, the solution segments the counter-cutting bar with strategically positioned openings. This approach achieves reliable label holding with fewer vacuum openings, thereby minimizing cleaning time and machine downtime while maintaining effective label securing.
3Adaptability or versatility
If the counter-cutting bar is converted by the user, then the adaptability to different label lengths is improved, but the manufacturing precision and tolerances deteriorate
Solution Approach 1:
The counter-cutting bar is designed with multiple openings that enable the system to automatically adapt to different label lengths without requiring user intervention for conversion. The standardized design with pre-positioned openings ensures manufacturing precision is maintained while providing versatility for various labeling applications.
4Ease of manufacture
If the counter-cutting bar width is reduced to minimize costs, then the manufacturing cost is reduced, but the cutting position flexibility is lost
Solution Approach 1:
The counter-cutting bar maintains a cost-effective width while being segmented with multiple openings positioned at different locations. This segmentation provides cutting position flexibility by allowing selection of different opening positions based on label length requirements, without increasing the overall bar width or manufacturing cost.
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
Enables efficient cutting of labels of varying lengths without complex device conversions, reducing downtime and operational costs by ensuring secure label hold and adaptable cutting performance.
Implementation Method 1
The labels are passed over the vacuum roller and held there by applying a vacuum to the vacuum roller via openings present in the roller surface of the vacuum roller
Data Source
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AI summary
The device has a cutting element for cutting a label strip provided with labels and comprising a cutting tool parallel to an axis. A counter-pressure roller supports the label strip, and rotatable about another axis arranged parallel to the former axis. The roller has a counter-cutting bar (6) that is provided on an outer surface of the roller. The bar has width perpendicular to the latter axis in such a manner that a cutting position at which the cutting element makes contact with the bar when cutting the label is shifted on the bar. An independent claim is also included for a cutting method for cutting labels with a cutting element.