Rotatable Sector Transfer Drum for Labeling Machines
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing labeling machines struggle to efficiently label containers with diameters greater than a certain limit, as containers not intended for labeling touch the transfer drum's label, leading to overheating, deformation, and incorrect label application.
Innovation Solution
The labeling machine features transfer drums with rotatably movable sectors that adjust their radial distance from the axis, allowing the labeling ribbon to slip on a uniform surface free from radial dimensional variations, and increasing the number of sectors to reduce label spacing and prevent container-label contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the transfer drum uses a non-cylindrical shape with eccentric sectors to space labels apart, then containers with larger diameters can be labeled without contact, but the labeling ribbon overheats and deforms due to slipping on the irregular surface
Solution Approach 1:
The transfer drum is divided into multiple sectors, each capable of independent radial movement. This segmentation allows different portions of the drum surface to be adjusted independently, creating variable spacing between labels while maintaining a uniform cylindrical outer surface for ribbon contact.
Solution Approach 2:
The sectors of the transfer drum are made movable in the radial direction, allowing dynamic adjustment of label spacing. The sectors can move outward to increase spacing for larger containers or remain close for smaller containers, providing adaptability while the drum maintains its cylindrical shape during ribbon application.
2Productivity
If multiple labeling units work in tandem to increase production speed, then productivity increases, but containers with larger diameters cannot be properly labeled as they touch labels not destined for them
Solution Approach 1:
The transfer drum is divided into multiple independent sectors that can be individually adjusted. This allows each sector to be optimized for specific container sizes, enabling multi-unit labeling systems to handle variable diameter containers without label misapplication.
Solution Approach 2:
The radial position of sectors on the transfer drum can be changed to adjust label spacing. By varying the radial distance of sectors from the drum axis, the system adapts to different container diameters, preventing label contact with unintended containers while maintaining high-speed operation.
3Adaptability or versatility
If sectors on the transfer drum are made much longer than the label length to space labels apart, then larger diameter containers can be labeled, but the labeling ribbon must slip on a non-uniform surface causing overheating and deformation
Solution Approach 1:
The transfer drum surface is segmented into multiple independent sectors rather than using a single long sector. This allows the drum to maintain a uniform cylindrical surface for ribbon contact while using radial movement of individual sectors to achieve the necessary label spacing for larger containers.
Solution Approach 2:
Instead of using a static non-cylindrical drum shape that causes ribbon slipping, the invention uses dynamically adjustable cylindrical sectors that move radially. This maintains a uniform surface for ribbon application, preventing overheating and deformation while still accommodating larger container diameters through increased radial spacing.
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 configuration enables the labeling machine to accurately apply labels to containers of varying sizes, including those with reduced spacing, while preventing label misapplication and ensuring consistent quality.
Implementation Method 1
the transfer drum is provided on its lateral surface with openings that are in communication with suction means in order to ensure the individual labels separated after cutting are held in adherence to its lateral surface
Data Source
AI summary
A labeling machine, which includes a conveyor of containers to be labeled along an advancement path and at least one labeling unit arranged along the advancement path and provided with a respective transfer drum that can move in rotation about its own axis, with respect to a supporting base, and which is adapted to receive, in adhesion to its lateral surface, from a feeder unit, labels to be applied to the containers, at a feeding station, and to transfer the labels received at the feeding station to respective containers that arrive from the conveyor at a transfer station which is angularly spaced apart from the feeding station about the axis of the transfer drum; at least one portion of a sector of the lateral surface of the transfer drum is rotatably movable, with respect to the remaining part of the transfer drum.