Wrap Labeling Apparatus with Wiper Assembly for Edge Application
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Solution Overview
Problem
Existing automated labeling systems face challenges in efficiently and accurately applying wrap labels over the edges of packages, particularly for products with varying sizes and shapes, often resulting in bulges and loops in the label application.
Innovation Solution
A labeling apparatus comprising a first and second conveyor section with a vertically oriented label conveyor and a wiper assembly, utilizing vacuum assemblies to position the leading edge of the wrap label such that it spans the gap between the conveyor sections, ensuring the adhesive surface is applied smoothly over the package edge, with adjustable components for accommodating different product dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a conventional automated labeling system is used, then labeling can be applied automatically, but the label application produces bulges and loops due to inability to accommodate varying product sizes and shapes
Solution Approach 1:
The wiper assembly is made movable relative to the conveyor surface, allowing dynamic adjustment of the label application pressure and position. This enables the system to adapt to varying product geometries while maintaining automated operation and achieving smooth label application without bulges or loops.
Solution Approach 2:
The system changes the physical parameters of label application by controlling the wiper assembly's position and pressure. By adjusting these parameters dynamically, the system maintains precision in label application across different product sizes and shapes while keeping automation intact.
2Area of stationary object
If the conveyor sections are positioned close together, then the label application area is compact, but the label cannot be properly positioned and spanned across the package edge
Solution Approach 1:
The wiper assembly acts as an intermediary between the label and the package edge. It receives the label from the conveyor, positions it precisely, and applies it to the package edge. This intermediary mechanism enables accurate label positioning even within a compact conveyor gap configuration.
3Productivity
If the wiper assembly is positioned close to the conveyor surface, then the label application is efficient, but the leading edge of the label cannot be properly received and positioned
Solution Approach 1:
The wiper assembly operates in a vertical dimension above the conveyor surface rather than solely in the horizontal plane. This vertical positioning allows the wiper to receive and position the label's leading edge properly while maintaining close proximity to the conveyor for efficient application, effectively utilizing the third dimension to resolve the spatial conflict.
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
The solution enables a taut and efficient application of wrap labels, minimizing bulges and loops, and allows for improved adjustability to accommodate various product sizes and shapes, ensuring a secure and tamper-evident seal.
Implementation Method 1
The wiper assembly includes a vacuum assembly configured to generate negative pressure to position a leading edge of the wrap label
Data Source
AI summary
A labeling apparatus for applying wrap labels includes a first conveyor section and a second conveyor section aligned with the first conveyor section thereby defining a conveying surface along which a package is conveyed in a conveying direction. The first conveyor section is spaced from the second conveyor section in the conveying direction thereby defining a gap between the first conveyor section and the second conveyor section. A label conveyor is located at least partially below the conveying surface having a vertical orientation to deliver a wrap label upwardly through the gap between the first and second conveyor sections. A wiper assembly is located above and spaced vertically from the conveyor surface to define a space between the wiper assembly and the conveying surface. The wiper assembly is arranged to receive a leading edge of the wrap label when it is delivered from the label conveyor and to position the leading edge of the wrap label such that the wrap label spans the space between the wiper assembly and the conveying surface for delivery of an adhesive surface of the wrap label over an edge of the package as the package passes through the space.