Label Peel Assembly for Constant Web Path Length
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Solution Overview
Problem
Conventional label reject systems in labeling machines either remove labels from an applicator drum or change the web's path length, which can disrupt high-speed and precision timing operations.
Innovation Solution
A label peel assembly positioned between fixed points along the web's travel path, with a peel roll that remains in a fixed orientation for normal operation and selectively changes to a second orientation to remove incorrect labels, maintaining a constant web path length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional label reject systems change the web's path length to remove labels, then label removal is achieved, but precision timing and high-speed operation are disrupted
Solution Approach 1:
The label peel assembly is designed with dynamic orientation capability, allowing it to switch between a first orientation (labels remain on web) and a second orientation (labels are removed from web). This dynamic reconfiguration enables label removal without permanently altering the web path length, thus maintaining precision timing while achieving label rejection functionality
Solution Approach 2:
Instead of changing the web path length (one-dimensional solution), the invention introduces a second orientation dimension for the label peel assembly. By rotating or repositioning the peel assembly between two fixed points, labels can be removed through a different spatial dimension without affecting the overall web travel distance between fixed points, thereby preserving timing precision
2Ease of manufacture
If conventional label reject systems remove labels from applicator drum, then incorrect labels are rejected, but the system complexity increases
Solution Approach 1:
The label peel assembly serves multiple functions: it allows normal label passage when in the first orientation and enables label removal when in the second orientation. This multi-functionality eliminates the need for separate label removal mechanisms, reducing overall system complexity while maintaining effective label rejection capability
Solution Approach 2:
The invention extracts the label removal function from the applicator drum system and implements it through a dedicated label peel assembly positioned between two fixed points. This separation allows the label peel assembly to handle rejection independently without complicating the applicator drum mechanism, achieving simplified system architecture
Data Source
AI summary
An incorrect label removal system is disclosed for removing unwanted labels from a web of labels in a labeling machine. The incorrect label removal system includes a label peel assembly positioned between two fixed points along the direction of travel of the web of labels. The label peel assembly provides a first orientation in which labels remain on the web as the web passes the label peel assembly, and selectively provides a second orientation in which labels are removed from the web. The label peel assembly provides that a length of the web between the two fixed points is substantially the same when the label peel assembly is in each of the first orientation and the second orientation.