Inkjet Printer Head Orthogonal Motion for Coding Consistency
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Solution Overview
Problem
Current inkjet printing systems face challenges with controlling the traveling speed of labels or printing objects due to factors like material, thickness, temperature, and humidity, leading to inconsistent printing quality and requiring complex adjustments for different sizes and locations of printing objects, along with issues of ink buildup and clogging that necessitate manual cleaning, resulting in system downtime.
Innovation Solution
An inkjet product coding printing system with a vertically arranged printing surface and inkjet printer head that moves orthogonally to the travel direction of printing objects, featuring rows of ink nozzles aligned along the travel direction, a motion unit connected to the printer head, and a control system to manage the motion and printing process, allowing for consistent ink injection while the objects remain stationary, and an integrated ink purge system using vacuum pressure to prevent clogging without external vacuum sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the inkjet printer head is stationary and the label moves horizontally under it, then the printing system can be simple in structure, but it becomes difficult to control the traveling speed of the label leading to inconsistent printing quality
Solution Approach 1:
Instead of moving the label under a stationary printer head, the patent inverts the approach by making the printer head move along the label while the label remains stationary or moves at a controlled speed. This inversion allows precise control of the printing process through the printer head's motion system while simplifying label handling.
Solution Approach 2:
The patent implements dynamic motion control where the printer head can adjust its speed and position dynamically during the printing process. The system uses motion control mechanisms to maintain consistent printing quality even when label speed varies, allowing the printer head to synchronize its movement with the label transport.
2Adaptability or versatility
If the inkjet printer is adjusted for different sizes and locations of printing objects, then the system can accommodate various products, but it requires dismounting and remounting the printer leading to system downtime
Solution Approach 1:
The printer head is mounted on a motion control system that allows dynamic adjustment of its position and orientation during operation. Instead of physically remounting the printer for different products, the system can electronically reposition the printer head to accommodate various product sizes and printing locations, maintaining adaptability without system downtime.
Solution Approach 2:
The motion-controlled printer head system serves multiple functions: it can print on different product sizes, adjust printing positions, and accommodate various orientations. This single universal system replaces the need for multiple fixed printer configurations, allowing the same hardware to adapt to diverse printing requirements.
3Reliability
If manual cleaning of ink nozzles is performed to prevent clogging, then the ink buildup can be removed, but it increases system downtime and does not provide consistent cleaning results
Solution Approach 1:
The system incorporates an automated self-cleaning mechanism where the printer head periodically performs cleaning cycles without external intervention. The motion control system enables the printer head to access cleaning stations or perform self-purging operations, maintaining nozzle functionality automatically and eliminating the need for manual cleaning downtime.
Solution Approach 2:
The cleaning operation is integrated into the continuous printing process rather than being a separate manual intervention. The system can perform cleaning actions between printing cycles or during idle periods, ensuring nozzle reliability without interrupting overall production. The automated nature of the cleaning ensures consistent results every time.
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
This configuration enhances printing quality by maintaining consistent speed and position, reduces system downtime through automated ink management, and allows for efficient printing on various object sizes without manual adjustments, addressing the limitations of existing inkjet printers.
Implementation Method 1
the plurality of ink nozzles is arranged in a plurality of rows configured along the travel direction of the plurality of printing objects, wherein the inkjet printer head moves orthogonally to the travel direction of the plurality of printing objects when the inkjet printer head ejects an ink
Implementation Method 2
an ink purge system comprising a housing, a vacuum system to provide a negative pressure in the housing
Data Source
AI summary
An inkjet product coding printing system comprises a plurality of printing objects comprising a travel direction and a printing surface arranged vertically; at least one inkjet printer head, wherein the inkjet printer head further comprises a plurality of ink nozzles facing the printing surface of the plurality of printing objects, wherein the plurality of ink nozzles is arranged in a plurality of rows configured along the travel direction of the plurality of printing objects, wherein the inkjet printer head can move up and down vertically, wherein the inkjet printer head moves orthogonally to the travel direction of the plurality of printing objects when the inkjet printer head ejects an ink; a motion unit connected with the inkjet printer head; and at least one control system controlling the motion unit and the inkjet printer head, and a method of printing product coding information by the inkjet product coding printing system.