Container Labeling Machine With Adaptive Adhesive Roller Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing labeling machines face issues with adhesive smearing on the transfer drum, operational speed limitations, and difficulty in handling missing bottles, especially in triblock systems, leading to construction challenges and reduced reliability.
Innovation Solution
A labeling machine with a transfer drum equipped with cutting means and adhesive bonding regions, synchronized with a conveyor, allows for controlled adhesive application and rapid movement of the spreading roller to an inactive position when missing bottles are detected, using aspiration and controlled unwinding to prevent adhesive smearing and ensure efficient label transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the adhesive spreading roller continuously applies adhesive to the transfer drum, then labeling efficiency is maintained, but adhesive smearing occurs on the transfer drum requiring shutdown for cleaning
Solution Approach 1:
The adhesive spreading roller is made movable relative to the transfer drum, allowing it to dynamically adjust its position between active (contacting the transfer drum to apply adhesive) and inactive (retracted to prevent smearing) states. This dynamic positioning resolves the contradiction by enabling continuous adhesive application during normal operation while preventing adhesive smearing when bottles are absent.
Solution Approach 2:
A sensor detects the presence or absence of bottles on the conveyor and provides feedback to the control system. When no bottle is detected, the control system actuates the adhesive spreading roller to the inactive position, preventing adhesive smearing. When a bottle is present, the roller returns to the active position for continuous adhesive application, maintaining labeling efficiency.
2Reliability
If the adhesive spreading roller is rapidly moved to inactive position when missing bottles are detected, then adhesive smearing is prevented, but mechanical stress on the roller and actuator increases
Solution Approach 1:
The adhesive spreading roller operates in periodic cycles, alternating between active and inactive positions based on bottle presence detection. This periodic operation allows the system to prevent adhesive smearing by retracting the roller only during brief intervals when no bottle is present, rather than maintaining continuous high-speed movement, thereby reducing cumulative mechanical stress on the actuator and roller.
3Productivity
If the machine operates at high speed, then productivity increases, but the time available to move the adhesive spreading roller between active and inactive positions decreases
Solution Approach 1:
The adhesive spreading roller is positioned in advance to the inactive position before the transfer drum sector that would receive adhesive reaches the adhesive application zone. This preliminary action ensures that by the time the drum sector arrives, the roller is already retracted, preventing adhesive smearing without requiring rapid movement during critical timing windows, thus maintaining high operational speed.
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
Enables high-speed labeling with reduced adhesive smearing, improved reliability, and flexibility in handling pre-glued and non-pre-glued ribbons, while maintaining operational safety and reducing mechanical stress on components.
Implementation Method 1
the application of a considerable force of attraction obtained by way of the forced suction of air through holes provided on the lateral surface of the transfer drum
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A machine and a method for labeling containers, the machine comprising a transfer drum (2), fed by an assembly (3) for unwinding a labeling ribbon (4) and provided with cutting means (5), which is adapted to bring the individual labels (17a, 17b), separated after cutting, into contact with corresponding containers (10, 10a, 10b) which are supported by a conveyor (11); a roller (12) for spreading adhesive faces the transfer drum (2) and is designed to apply, to the labels (17a, 17b) that are present on the ribbon (4), at least one line of adhesive (13) prior to their separation from the ribbon (4).