Cutting Device Paddle Section and Destaticizing Brush

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Solution Overview

Problem

Conventional printer apparatuses face issues with cutting cloth labels made of materials like polyester, which are weak in stiffness and easily electrified, leading to potential jamming and sticking during the cutting process due to electrostatic charges.

Innovation Solution

A cutting device with a cutting section and conveyance unit that includes a paddle section attached to a rotation shaft, which scrapes out the cut cloth label to prevent sticking and includes a destaticizing brush to manage electrostatic charges, ensuring efficient conveyance and discharge.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a cutting device is used to cut cloth labels, then the cloth label can be cut into predetermined length, but the cloth label becomes electrified due to friction during cutting causing sticking and jamming

Engineering Contradiction:
Improvecutting efficiencyVSAvoidelectrostatic charge
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent applies the principle of converting harm into benefit by using a destaticizing brush that generates electrostatic charge to counteract and neutralize the harmful electrostatic charge on the cloth label. The brush, made of conductive material or connected to a grounding source, transfers the accumulated static charge to ground, converting the harmful electrostatic attraction into a beneficial grounding action that prevents sticking and jamming during cutting operations.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

2Productivity

If the cloth label is electrified during cutting, then cutting can proceed, but the electrified label sticks around the cutter causing jamming

Engineering Contradiction:
Improvecutting speedVSAvoidcutting continuity
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent implements preliminary action by positioning the destaticizing brush in advance along the cutting path and activating it before the cloth label accumulates significant electrostatic charge. The brush continuously neutralizes static charge during the cutting process, preventing the label from sticking to the cutter in the first place rather than addressing sticking after it occurs.

Inventive Principle:
Principle #10Preliminary action

3Device complexity

If a conventional cutting device is used without additional components, then the device structure remains simple, but the cloth label sticks and jams due to electrostatic charges

Engineering Contradiction:
Improvecutting device structureVSAvoidcutting operation stability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent applies multi-functionality by designing the destaticizing brush to serve multiple purposes: it acts as both a static neutralization device and a guide for the cloth label during cutting. The brush is integrated into the cutting mechanism, allowing it to perform both the function of neutralizing electrostatic charge and guiding the label through the cutting path, thereby adding functionality without proportionally increasing complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

The solution effectively prevents cloth labels from sticking and ensures efficient output by using a paddle section to scrape out the label and a destaticizing brush to manage electrostatic charges, maintaining conveyance speed and preventing jamming.

Implementation Method 1

a destaticizing brush to manage electrostatic charges

Methodology Applied
Scientific EffectElectrostatic discharge: Electrostatic Discharge

Implementation Method 2

a paddle section attached to a rotation shaft that is rotatable in a conveyance direction of the cloth medium, is configured to come into contact with the placement surface by rotating around the rotation shaft, and is configured to scrape out the cloth medium in the conveyance direction

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS20240316814A1Cutting device and printer apparatus
Publication Date: 2024.09.26 TOSHIBA TEC KK
  • US20240316814A1 patent drawing
  • US20240316814A1 patent drawing
  • US20240316814A1 patent drawing

AI summary

According to one embodiment, there is provided a cutting device including a cutting section configured to cut a conveyed long cloth medium into a predetermined length, a placement surface for placing the cloth medium cut by the cutting section, and a paddle section attached to a rotation shaft that is rotatable in a conveyance direction of the cloth medium, configured to come into contact with the placement surface by rotating around the rotation shaft, and configured to scrape out the cloth medium in the conveyance direction.