Cutting device and printing device
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Solution Overview
Problem
Existing printing devices face challenges in efficiently conveying cut fabric labels due to their weak and easily charged nature, which can lead to jamming issues during the cutting process.
Innovation Solution
A cutting device with a cutting unit, a placement surface, a rotation shaft, a paddle portion, and a driving mechanism is provided. The cutting unit cuts the fabric medium into a predetermined length, and the paddle portion scrapes the fabric label in the conveyance direction, ensuring efficient discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional cutting device is used for fabric labels, then the cutting function is achieved, but the fabric label is easily charged and stuck to the periphery of the cutter, causing jams
Solution Approach 1:
The invention introduces a grounding mechanism that converts the harmful static charge accumulation into a beneficial discharge path. The fabric label is grounded through the cutting device's metal components and grounding wire, allowing static electricity to be safely discharged to earth potential, preventing jams while maintaining the cutting function
Solution Approach 2:
The invention uses the metal cutting device components (cutter, holder, grounding wire) as an intermediary grounding path between the fabric label and earth. This intermediary structure provides a controlled path for static charge dissipation without requiring direct contact between the fabric and complex grounding equipment
2Productivity
If the fabric label is conveyed through the cutting device, then cutting and discharge are performed, but the weak fabric material is likely to jam during the process
Solution Approach 1:
The invention applies preliminary anti-action by grounding the fabric label before and during the cutting process. This preventive measure counteracts the static charge buildup that would otherwise cause the weak fabric to stick to surfaces and jam, ensuring smooth conveyance throughout the cutting and discharge operation
Solution Approach 2:
The invention enables the fabric label to self-ground through contact with the metal cutting device components during normal operation. The fabric's own movement through the device provides the necessary contact for charge dissipation, eliminating the need for additional active grounding mechanisms
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 enables efficient conveyance and discharge of cut fabric labels, preventing jamming by effectively managing static charges and ensuring smooth movement of the labels through the cutting device.
Implementation Method 1
the paddle portion is configured to scrape the fabric medium in a conveyance direction by moving in a conveyance direction while being in contact with the placement surface
Data Source
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AI summary
A cutting device includes: a cutter positioned on a conveyance path for conveying a fabric medium and configured to cut the fabric medium into a predetermined length; a placement surface defining a part of the conveyance path receiving the cut fabric medium; a rotation shaft positioned above the conveyance path and configured to rotate in a conveyance direction of the fabric medium; a paddle portion attached to the rotation shaft and configured to scrape the fabric medium placed on the placement surface in the conveyance direction by moving in the conveyance direction while in contact with the placement surface in accordance with a rotation operation of the rotation shaft; and a driver configured to transmit a driving force to the cutter and the rotation shaft, and such that a cutting operation of the cutter and the rotation operation of the rotation shaft are performed in conjunction with each other.