Label Roll Holder With Segmented Mounts For Variable Width

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Solution Overview

Problem

Existing roll holders for label rolls in packaging machines are not adaptable to label rolls of different widths and often cause label rolls with varying inner diameters to lag or roll off jerky due to direct fixation on fixed-position mandrels.

Innovation Solution

A roll holder design featuring two separate roll mounts that engage at both ends of the label roll, allowing for adjustable width accommodation, with a clamping mechanism to secure the label roll rotatably and axially on a fixed-position holding mandrel, and a brake mechanism to prevent unwanted rotation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed-position holding mandrel is used to support the label roll, then the structure is simple and stable, but the label roll cannot be adapted to different widths and inner diameters, causing lagging and jerky rolling

Engineering Contradiction:

Improveadaptability to different label roll widths and inner diametersVSAvoidcomplexity of the roll holder structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The roll holder is divided into separate functional components: a fixed holding mandrel and detachable roll mounts. Each roll mount is independent and can be separately adjusted or removed, allowing adaptation to different roll sizes while maintaining structural simplicity through modular design

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Roll mounts are introduced as intermediary components between the fixed holding mandrel and the label roll. These roll mounts serve as adaptive interfaces that compensate for variations in roll inner diameters and widths, enabling the fixed mandrel to work with variable roll dimensions without direct contact

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If the label roll is directly pushed onto a fixed-position holding mandrel, then the mounting is simple, but the label roll has too much play and lags on jerky rolling off

Engineering Contradiction:

Improvestability of label roll rotationVSAvoidsmoothness of label roll rotation

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

Roll mounts act as intermediary components that provide a stable rotational interface between the fixed mandrel and the label roll. These mounts eliminate direct play by creating a precise mechanical connection, ensuring smooth and reliable rotation without lagging

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The roll mounts are designed to be rotatable relative to the holding mandrel, allowing dynamic adjustment to accommodate different roll inner diameters. This rotational capability enables the system to adapt to varying roll sizes while maintaining stable and smooth rotation during operation

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS11731853B2Roll holder for a label roll

Publication Date: 2023.08.22 BIZERBA GMBH & CO KG

AI summary

The invention relates to a roll holder for a label roll, in particular for a label printer for a packaging machine for wrapping products with a packaging film, having an horizontally arranged, fixed-position holding mandrel whose one end is fastened to a carrier and whose other end projects in an unsupported manner from the carrier, and having a first roll mount and a second roll mount separate from the first roll mount, wherein the first roll mount is configured to engage into a first end of the label roll, and wherein the second roll mount is configured to engage into a second end of the label roll, such that the label roll is receivable between the two roll mounts, with the second roll mount being pushable onto the holding mandrel from the unsupported end of the holding mandrel.