Labeling Apparatus with Negative Pressure Plate and Free-Spinning Roller
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Solution Overview
Problem
Existing labeling systems for moving items in material handling systems are complex and require synchronization of label print speed with conveyance speed, making them difficult to adjust and operate efficiently.
Innovation Solution
A labeling apparatus with a label release mechanism, a support plate creating negative pressure to hold labels, and a free-spinning compliant roller that matches label speed to item speed, allowing for flexible label application on irregular surfaces without needing complex synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex electro-mechanical or electro-pneumatic systems are used to apply labels to moving items, then label application can be achieved, but device complexity increases with numerous moving parts and adjustment points
Solution Approach 1:
The patent removes the label from the moving item conveyor path and applies it while the item is stationary on the support surface. This extracts the labeling operation from the high-speed moving item stream, eliminating the need for complex synchronization mechanisms and reducing device complexity while maintaining reliable label application.
Solution Approach 2:
The support surface acts as an intermediary between the moving item conveyor and the label application mechanism. Items are temporarily held on this intermediate surface, allowing labels to be applied in a controlled environment before items return to the conveyor, thereby simplifying the overall system architecture.
2Manufacturing precision
If label print speed is matched to conveyance speed for proper system operation, then labeling accuracy is maintained, but ease of operation decreases due to synchronization requirements and adjustment complexity
Solution Approach 1:
Labels are applied to items while they are stationary on the support surface before being returned to the moving conveyor. This preliminary action allows label placement to be performed without speed synchronization concerns, and the labeled items are then seamlessly reintroduced to the conveyor stream, maintaining both accuracy and operational simplicity.
3Reliability
If pneumatic cylinders or complex motor arrangements are used to press labels on moving items, then label application is achieved, but ease of operation worsens due to numerous adjustment points
Solution Approach 1:
The labeling operation is extracted from the moving item conveyor path. Items are temporarily stopped and positioned on a support surface where labels can be applied using simple gravity-fed mechanisms without requiring pneumatic cylinders or complex motors, thereby eliminating numerous adjustment points while maintaining reliable label application.
4Reliability
If complex electro-mechanical systems with numerous moving parts are used, then label application capability is maintained, but loss of energy increases due to multiple components and high complexity
Solution Approach 1:
The labeling function is extracted from the high-speed moving conveyor system and performed on stationary items. This eliminates the need for energy-consuming synchronization mechanisms, pneumatic systems, and complex motors, significantly reducing energy loss while maintaining reliable label application capability.
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
Simplifies labeling operations by reducing complexity and energy reliance, enabling label speed matching with item speed and compensating for surface irregularities, thus improving labeling reliability and efficiency.
Implementation Method 1
a fan positioned to create a negative pressure effect at the at least one opening in the support surface of the plate for holding labels against the support surface as the labels travel along the support surface
Implementation Method 2
the fan is positioned to create a flow of air through the at least one opening in the plate, from the support surface to a rear surface
Implementation Method 3
the roller is a compliant roller and the outer surface portion is resilient... displacement of the outer surface portion of the compliant roller compensates for contour irregularities in the item application surface
Data Source
AI summary
Labeling apparatuses for labeling moving items are disclosed having a label release mechanism for releasing labels from a backing, a plate having a support surface with at least one opening through the plate, a fan positioned to create a negative pressure effect at the support surface of the plate, and a free-spinning roller positioned at a downstream end of the support surface for receiving labels that pass along the support surface. The roller has an outer surface portion that includes a nip zone for contacting a moving item application surface to which the label will be applied. A method of applying a label using the disclosed labeling apparatuses is also disclosed and includes utilizing a label support surface and a free-spinning roller, receiving a label, generating a negative pressure effect, supporting the label as it travels to the nip zone, and adhering the label to the moving item.