Label Positioning Correction in Cigarette Pack Production
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Solution Overview
Problem
In the cigarette packaging industry, there is a need to address positional deviations of labels perpendicular to the label removal direction, especially in sealed packs, to ensure precise positioning throughout the pack production process.
Innovation Solution
A method and device that automatically detect deviations of labels from their target positions perpendicular to the label removal direction and initiate countermeasures to correct these deviations, such as moving the carrier tape or products, to ensure accurate labeling during subsequent application processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If label application is performed without continuous position monitoring, then the manufacturing process is simpler and faster, but label positioning precision deteriorates due to uncorrected deviations
Solution Approach 1:
The patent implements a feedback control system where a sensor detects the actual position of labels on the carrier tape, compares it with the target position, and generates correction signals to adjust the carrier tape position or product position in real-time, ensuring precise label application despite deviations
Solution Approach 2:
The patent replaces manual positioning operations with an automated control system that uses sensors to detect position deviations and electronically controls actuators to correct the positions, substituting mechanical manual adjustment with automated sensing and actuation
2Productivity
If position deviations are not corrected, then the production process continues uninterrupted, but labeling quality deteriorates with incorrect label placement
Solution Approach 1:
The system continuously monitors label positions during production and provides real-time feedback to correction mechanisms, allowing the production line to maintain continuous operation while automatically compensating for position deviations to ensure accurate label placement
Solution Approach 2:
The patent implements dynamic position adjustment where the carrier tape or product positions are continuously modified during the labeling process based on detected deviations, allowing the system to adapt to changing conditions while maintaining production flow and labeling accuracy
Data Source
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AI summary
The invention relates to a method for applying labels (13) to blanks, material webs or partially completed packs (12) – products – during the production of cigarette packs or packs for other tobacco products, wherein a carrier strip (19) having labels (13) arranged thereon is conveyed to a pull-off station (18), which comprises a pull-off means (21), in particular a pull-off edge, at which pull-off station the labels (13) are separated one after the other cyclically by each being pulled off of the carrier strip (19) and are each transferred to an associated product (12) and applied to said product. The invention is characterized in that, continuously or with periodic recurrence, it is automatically determined whether the carrier strip (19), a label (13) still on the carrier strip (19) or a label (13) already applied to a product (12) deviates from a target position perpendicularly to the label pull-off direction, and if such a deviation is determined, the carrier strip (19) or the products (12) are automatically moved perpendicularly to the label pull-off direction in such a way that the deviation is counteracted.