Label Applying Belt for Decoupled Print and Conveyance
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Solution Overview
Problem
Existing label applying systems face challenges in synchronizing print speed with conveyance speed, inefficient use of production line space, and poor print quality due to label orientation and synchronization issues, particularly in 'reels up' print and apply machines.
Innovation Solution
A label applying apparatus that decouples print speed from conveyance speed, uses a horizontally oriented label stock supply and take-up shafts, and applies labels via a label applying belt system with a compliant roller to match label speed with item speed, allowing perpendicular label movement and improved print quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If label print speed is synchronized with conveyance speed in 'reels up' print and apply machines, then proper system operation is achieved, but production line space efficiency deteriorates and wear parts have reduced lifespan
Solution Approach 1:
The system separates the printing function from the label application function by introducing an intermediate label application belt. The printer prints on labels that are then transferred to the belt, which independently conveys them to the application point. This segmentation allows each subsystem to operate at its own optimal speed without synchronization constraints.
Solution Approach 2:
The label application belt acts as an intermediary between the printer and the item conveyance system. It receives printed labels from the printer, transports them to the application location, and applies them to moving items. This mediator decouples the speed requirements of printing from the speed requirements of item conveyance.
2Ease of manufacture
If labels are oriented with long axis aligned with feed direction in vertical shaft configurations, then label application is achieved, but production line space utilization and wear part longevity deteriorate
Solution Approach 1:
The patent inverts the conventional vertical shaft configuration to a horizontal shaft arrangement. The label stock supply shaft and take-up shaft are positioned horizontally, which changes the orientation of label feeding from vertical to horizontal. This inversion optimizes space utilization in typical factory floor layouts and improves access for maintenance personnel.
3Ease of manufacture
If labels are fed horizontally on 'reels up' machines, then label application is achieved, but label feedstock rolls telescope and machine wear increases
Solution Approach 1:
The patent changes the feedstock roll orientation from horizontal to vertical by inverting the shaft configuration. Vertical mounting of the label stock supply shaft prevents the feedstock rolls from telescoping under their own weight, improving stability and reducing mechanical stress on the roll mounting mechanisms.
4Ease of manufacture
If barcodes are printed in 'ladder' manner due to label orientation, then label application is achieved, but print quality deteriorates
Solution Approach 1:
The patent inverts the label orientation relative to the printing direction. Instead of printing across the short axis of the label in a ladder pattern, the labels are oriented so that the barcode is printed along the long axis in a picket-fence pattern. This orientation allows the printer to utilize its full resolution capability across the barcode lines, significantly improving print quality and scan reliability.
Data Source
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Figure 1B
Figure 1C
AI summary
A method of printing and applying a label to an item moving in a conveyance direction along a conveyance path, the method comprises: utilizing a print and labeling assembly (10) that includes a label stock path that feeds label stock past a printer (14) to print on a label (28) of the label stock to produce a printed label that is dispensed in a first direction onto a label applying belt (26) that moves in a second direction, wherein the first direction is substantially perpendicular to the second direction such that the printed label moves onto the label applying belt from a lateral side of the label applying belt; and the label applying belt moves the printed label into position to engage with the item as it moves along the conveyance path.