Vertical Gravity Gluing for Label Web Reliability
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Solution Overview
Problem
Existing labeling units for containers, particularly in the food and beverage industry, face inefficiencies, precision issues, and susceptibility to failure due to complex and error-prone mechanics when handling individual non-self-adhesive labels, leading to label jams and laborious changeovers.
Innovation Solution
A labeling unit that uses a label web magazine with a gluing device applying glue in the direction of gravity, guided through various areas for efficient label transfer and separation, eliminating the need for complex individual label transport mechanisms and allowing for flexible orientation and compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual labels are transported through the labeling unit using complex mechanisms, then labels can be applied to containers, but the device becomes prone to malfunctions and label jams
Solution Approach 1:
The invention extracts the labels from individual transport and instead transports a continuous label web through the labeling unit. The label web is fed from a dispenser and passed through the labeling station without requiring complex individual label handling mechanisms, thereby reducing device complexity while maintaining labeling functionality.
Solution Approach 2:
Multiple labeling functions are merged into a single pass through the labeling unit. The label web carries multiple labels that are applied sequentially to different containers in one continuous motion, eliminating the need for separate transport mechanisms for each individual label and reducing overall system complexity.
2Extent of automation
If individual labels are handled and transported separately, then labeling can be performed, but the process becomes laborious and only partially automatable
Solution Approach 1:
The label web provides continuous supply of labels through the labeling unit, enabling uninterrupted automated labeling. The continuous web format allows the system to operate without frequent stops for label replacement, maintaining continuous useful action and high automation level.
Solution Approach 2:
Labels are pre-arranged on the label web in a continuous sequence before entering the labeling unit. This preliminary arrangement eliminates the need for real-time individual label handling during the labeling process, allowing fully automated operation without manual intervention.
3Manufacturing precision
If glue is applied to labels in a non-vertical direction, then labels can be glued to the web, but glue drops may not reach the label accurately and lateral forces cause dirt buildup
Solution Approach 1:
The printhead is positioned and oriented such that glue is applied in the vertical direction, utilizing gravity to ensure accurate glue placement. This vertical orientation creates equipotential conditions where gravity assists rather than opposes the glue application, eliminating the need for complex time-of-flight compensation and lateral force control mechanisms.
4Adaptability or versatility
If format-dependent interchangeable parts are used for different label formats, then various label sizes can be accommodated, but changeover time increases and costly components are required
Solution Approach 1:
The labeling unit is designed with universal components that can handle multiple label formats without requiring format-specific interchangeable parts. The label web dispenser and application mechanism are configured to accommodate different label sizes and types through software control and adjustable parameters rather than physical component changes, enabling quick format switches.
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
This solution enhances efficiency, precision, and robustness by reducing the risk of jams, simplifying changeovers, and optimizing glue application, resulting in a more reliable and space-efficient labeling process.
Implementation Method 1
the transfer of glue to the labels on the label web essentially takes place in the direction of gravity
Data Source
Figure 1
AI summary
The invention relates to a labeling unit (1) for labeling containers (16), in particular bottles, comprising: at least one label web magazine (2) for dispensing a label web (3a) with labels (4), an gluing device (5) for gluing the labels (4) onto the label web (3a), means (6) for removing the glued labels (4b) from the label web (3b), means (9) for transferring the glued and removed labels (4b) to containers (16) to be labeled, means (7a, 7b, 7c, 7d, 7e) for guiding the label web (3a) through the labeling unit (1), wherein the means (7a, 7b, 7c, 7d, 7e) for guiding the label web (3a) are configured to guide the label web (3a) through the following areas: a label web receiving area (13) for receiving the label web (3a) with unglued labels Labels (4) from the label web magazine (2), a gluing area (14) for gluing the labels (4) onto the label web (3a),a release area (15) for releasing the glued labels (4b) from the label web (3b), and wherein in the gluing area (14) the gluing device (5) is configured such that the glue transfer to the labels on the label web occurs substantially in the direction of gravity (10).