Modular Crush Cutting for Variable-Length Continuous Labels

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Solution Overview

Problem

Existing label printing systems lack the ability to dispense and cut continuous webs of material to varying lengths, leading to increased material costs and waste due to pre-cut labels, and inefficiencies in adapting to different label lengths.

Innovation Solution

A modular cutting system with a rolling cutter configured to cut across layers of material, using a crush cutter mechanism that cuts from the adhesive side against an anvil, and an air assist unit to manage label material during cutting, allowing for variable length label cutting and reducing waste.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If pre-cut labels are used in existing printing systems, then the system structure remains simple, but material waste increases and adaptability to different label lengths is lost

Engineering Contradiction:

Improveadaptability to different label lengthsVSAvoidmaterial waste

Core Design Contradiction:

Adaptability or versatilityVSLoss of substance

Solution Approach 1:

The cutting system enables dynamic adjustment of label lengths by allowing the web to be cut at variable positions along its length. The cutting mechanism can be positioned and activated at different locations to produce labels of different lengths from the continuous web, providing adaptability while minimizing waste compared to fixed pre-cut labels.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the parameter of label length from fixed (pre-cut) to variable (on-demand cutting). By implementing a cutting mechanism that can operate at different positions along the continuous web, the system allows label length to be adjusted according to specific requirements, thereby improving adaptability and reducing material waste.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If a cutting system is added to enable variable length labels, then material waste is reduced and adaptability improves, but device complexity increases

Engineering Contradiction:

Improvecutting efficiencyVSAvoidsystem complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The cutting system is implemented as a modular add-on component that can be integrated with existing printing systems. By segmenting the cutting function as a separate module rather than redesigning the entire printing system, the solution improves productivity through variable length cutting while minimizing the increase in overall system complexity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The cutting mechanism is combined with the existing printing system architecture, integrating the cutting function into the label dispensing process. This merging approach allows the system to perform both printing and cutting operations in a coordinated manner, improving productivity without requiring completely separate systems.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If continuous web cutting is implemented, then adaptability to different label lengths is achieved, but the cutting mechanism complexity increases

Engineering Contradiction:

Improvevariable label length capabilityVSAvoidcutting mechanism complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The cutting mechanism uses a crush cutter design where a rotating cutter wheel crushes the label web against a stationary anvil to create cuts. This mechanical substitution approach replaces more complex cutting methods with a simpler crushing action, achieving variable length cutting capability while keeping the mechanism relatively simple and reliable.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 efficient cutting of continuous labels with or without liners, minimizing material waste and enhancing adaptability to different label lengths, while integrating with existing printers for added functionality.

Implementation Method 1

using a crush cutter mechanism that cuts from the adhesive side against an anvil

Methodology Applied

Scientific EffectCrush cutting: Mechanical Force

Implementation Method 2

an air assist unit to manage label material during cutting

Methodology Applied

Scientific EffectAir flow: Fluid Spray

Data Source

PatentEP4344423B1Modular variable length crush cutting apparatus and method

Publication Date: 2026.01.14 AVERY DENNISON RETAIL INFORMATION SERVICES LLC

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AI summary

In some embodiments, a modular cutting system may include a crush-cutting unit configured to receive a label web from a printer and to cut through an adhesive layer of the label web towards an outer surface of the label web. In some embodiments, the system may include a support bracket configured for being mounted to a label printer. The system may include a tamp system. The tamp system may be configured for being mounted to the support bracket. The crush-cutting unit may be mounted to the support bracket. The system may include a printer configured for printing at least one of an image and text on the label web. The system may include an anvil positioned to hold the label web in place when the label web may be disposed between the anvil and the crush-cutting unit. The anvil may be positioned above the crush-cutting unit.