Printer Nozzle Unit Using Magnetic Force to Block Ink Discharge
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Solution Overview
Problem
Conventional nozzle units for printers face issues with unintentional ink discharge due to vibrations or external forces during movement, leading to printing errors.
Innovation Solution
A nozzle unit design incorporating a sleeve with a guide path, a nozzle hole seat, and a nozzle holder with a magnetic force generation unit and a paramagnetic blank seat, which uses magnetic forces to prevent ink discharge by blocking the nozzle opening, thereby reducing pressure and preventing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional nozzle unit is used during printer head movement, then the printer can operate and discharge ink, but vibrations or external forces cause unintentional ink discharge leading to printing errors
Solution Approach 1:
A magnetic force generation unit is introduced as an intermediary between the nozzle holder and the external environment. This unit generates magnetic forces that create a magnetic field interacting with paramagnetic materials in the ink, preventing unintentional discharge while allowing controlled discharge during printing operations
Solution Approach 2:
The magnetic properties of the ink are utilized by introducing paramagnetic materials. The magnetic field strength parameter is dynamically controlled through the magnetic force generation unit, which can be activated or deactivated to prevent or allow ink discharge respectively, thus resolving the contradiction between preventing unintentional discharge and enabling controlled printing
2Productivity
If the nozzle opening is exposed to prevent ink buildup, then ink can be discharged freely, but external forces or vibrations cause unintended ink loss
Solution Approach 1:
The magnetic force generation unit provides dynamic control over the nozzle opening state. By adjusting the magnetic field strength, the system can transition between states of free ink discharge (during printing) and blocked state (during movement or idle periods), optimizing both productivity and preventing ink loss
Solution Approach 2:
The paramagnetic ink itself serves the dual function of being the material to be discharged and the medium that responds to magnetic control. The ink's inherent paramagnetic properties enable it to be controlled by the magnetic field without requiring additional mechanical components at the nozzle tip
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
Effectively prevents unintentional ink discharge during printer head movement, reducing printing errors and maintaining nozzle integrity by utilizing magnetic forces to control ink flow.
Implementation Method 1
including a paramagnetic material... A nozzle unit design incorporating a sleeve with a guide path, a nozzle hole seat, and a nozzle holder with a magnetic force generation unit and a paramagnetic blank seat, which uses magnetic forces to prevent ink discharge
Data Source
AI summary
A nozzle unit for a printer that includes a sleeve having a guide path formed in the sleeve and through which ink passes, a nozzle hole seat arranged at one end of the sleeve and having a nozzle hole corresponding to the guide path, and a nozzle holder accommodating the sleeve and the nozzle hole seat, having an opening whose diameter is larger than a diameter of the nozzle hole of the nozzle hole seat so that the ink passing through the nozzle hole is externally discharged through the opening, and including a paramagnetic material.