Labeling Machine Cutting Drum With Elastically Deformable Blade Supports
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Solution Overview
Problem
Existing labeling machines require precise blade adjustments and complex blade replacement processes, leading to operational inefficiencies and increased construction complexity.
Innovation Solution
A labeling machine with a cutting drum featuring elastically deformable blade supporting elements that allow for simple and rapid blade replacement, utilizing suction chambers connected to air suction means for cutting the label ribbon without the need for precise blade positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If blades are integral with the cutting drum and a stationary blade is used, then cutting precision is improved, but blade adjustment complexity and device complexity increase
Solution Approach 1:
The cutting drum is made rotatable with blades mounted on its perimeter, transforming the static cutting system into a dynamic one. The rotation of the cutting drum brings different blades into position sequentially, eliminating the need for precise manual adjustment of each blade's position while maintaining cutting precision through the dynamic positioning mechanism.
Solution Approach 2:
The single rotatable cutting drum with multiple blades serves multiple functions: it performs cutting at different positions, transfers labels to containers, and eliminates the need for separate stationary blades. This multi-functional design reduces overall device complexity while maintaining cutting precision.
2Adaptability or versatility
If blades are made movable by working cylinders, then blade positioning flexibility is improved, but device complexity and construction complexity increase
Solution Approach 1:
Instead of using working cylinders to make blades movable, the invention uses a rotatable cutting drum that dynamically positions blades through rotation. This simpler dynamic mechanism provides the necessary positioning flexibility without requiring complex cylindrical actuators for each blade.
Solution Approach 2:
The invention combines the cutting function and label transfer function into a single rotatable cutting drum structure. This merging eliminates the need for separate working cylinders and complex positioning mechanisms, reducing construction complexity while maintaining blade positioning flexibility.
3Ease of manufacture
If blades are fixed in suction chambers, then device simplicity is improved, but blade replacement difficulty and time consumption increase
Solution Approach 1:
The cutting drum is segmented into multiple blade-receiving positions around its perimeter. Each position can independently accommodate a blade, allowing individual blade replacement without affecting other blades. This segmentation maintains device simplicity while enabling easy blade replacement by accessing only the specific segment that needs maintenance.
Solution Approach 2:
The suction chambers are pre-configured with blade retention mechanisms that allow for quick release and replacement. The preliminary design of these retention systems enables operators to quickly remove and install blades without complex disassembly procedures, maintaining both device simplicity and ease of repair.
4Productivity
If a rotatable cutting drum with multiple blades is used, then label cutting efficiency is improved, but blade replacement frequency and operational downtime increase
Solution Approach 1:
The cutting drum is divided into multiple segments, each with its own blade and suction chamber. This segmentation allows individual blade replacement without stopping the entire system or replacing all blades, minimizing operational downtime while maintaining high cutting efficiency through the remaining functional blades.
Solution Approach 2:
Blades are designed with preliminary retention features that allow for rapid replacement. The suction chambers are pre-configured to easily release and secure blades, enabling quick changes that minimize operational downtime while maintaining the high productivity enabled by having multiple blades on the rotatable drum.
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
Facilitates easy blade replacement and ensures reliable, safe, and cost-effective operation with improved construction simplicity and reduced pneumatic leaks.
Implementation Method 1
The suction chamber of each cutting device can be connected to air suction means, so as to enable the attraction, toward the inside of the suction chamber, of the portion of the label ribbon that in each instance is directed toward the suction chamber, so as to be able to push it against the blade
Implementation Method 2
A labeling machine with a cutting drum featuring elastically deformable blade supporting elements that allow for simple and rapid blade replacement
Data Source
AI summary
A labeling machine includes a conveyor of containers to be labeled along an advancement path and at least one labeling station. The labeling station includes an unreeling assembly for a label ribbon, and a cutting drum. At least one cutting device is provided and has a respective suction chamber, which accommodates internally a blade. The suction chamber is connectable with an air suction device, in order to attract the label ribbon toward the inside of the suction chamber and against the blade, in order to cut the label ribbon. The cutting device includes a respective blade supporting element which is coupled to the cutting drum and supports the blade. This blade supporting element is elastically deformable in order to allow the coupling/uncoupling of the blade to/from the blade supporting element.