Sliding Cutter Module Positioning for Variable Print Cutting Zones

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Solution Overview

Problem

Existing cutting devices in printers are limited in their ability to efficiently adjust to varying widths and positions of cutting zones, and there is a need for user-friendly replacement and positioning of cutter modules.

Innovation Solution

A dual cutter module system with independently slidable modules on a shaft, driven by pulley belts and a drive motor, featuring registration features for easy installation and replacement, allowing precise positioning and adjustable cutting speeds.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single fixed cutting device is used, then the device structure is simple, but it cannot efficiently adjust to varying widths and positions of cutting zones

Engineering Contradiction:
Improveadjustment to varying cutting zonesVSAvoiddual cutter module system
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The cutting device is divided into multiple independent cutter modules that can be individually positioned and adjusted. Each module contains its own cutting blade and positioning mechanism, allowing independent adjustment to accommodate varying cutting zone widths and positions without requiring a complete system redesign.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cutter modules are designed to be dynamically repositionable along the shaft, enabling the system to adapt to different cutting configurations. The modules can slide and lock at various positions, providing dynamic adaptability rather than fixed positioning.

Inventive Principle:
Principle #15Dynamics

2Ease of repair

If cutter modules are made replaceable for ease of maintenance, then ease of repair is improved, but the risk of incorrect installation increases

Engineering Contradiction:
Improvemodule replacementVSAvoidcorrect installation
Core Design Contradiction:
Ease of repairVSReliability

Solution Approach 1:

Registration features are pre-configured on both the cutter modules and the shaft to guide correct installation before the module is fully attached. These features perform the preliminary action of alignment, ensuring that users cannot install modules incorrectly even though replacement is simplified.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The registration features act as an intermediary mechanism between the cutter module and the shaft. They mediate the installation process by providing physical guidance and verification, ensuring proper alignment and connection while allowing easy replacement.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Manufacturing precision

If precise positioning of cutter modules is implemented, then manufacturing precision is improved, but the complexity of positioning mechanisms increases

Engineering Contradiction:
Improvecutter module positioningVSAvoidpositioning mechanism
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The positioning mechanism is designed to be self-aligning through complementary geometric features on the modules and shaft. The registration features automatically guide the modules into precise positions without requiring complex external positioning devices or manual adjustment mechanisms.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3774363B1Cutter module and method
Publication Date: 2025.11.19 HEWLETT PACKARD DEVELOPMENT COMPANY LP
  • EP3774363B1 patent drawingFigure 1~2
  • EP3774363B1 patent drawingFigure 3~4
  • EP3774363B1 patent drawingFigure 5

AI summary

A cutter arrangement for media processing equipment, including a cutter module to be arranged on a shaft via a dedicated one of a number of transmission devices, at least one of the cutter module and the transmission devices comprising a registration feature to guide a user to arrange the cutter module on the dedicated one of the number of transmission devices.