Inkjet Printer for Smart Label RFID Antenna on Blow Moulded Containers
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Solution Overview
Problem
Existing devices for treating plastic containers do not allow for early individualization or identification of containers, as RFID transponders are typically applied after the containers are produced and require additional downstream processes.
Innovation Solution
A device that integrates a printing mechanism, such as an inkjet printer, onto the transport system to apply electrically conductive substances directly onto the containers immediately after production, enabling the creation of smart labels that can be read and written to for identification and control purposes, including communication throughout the production and packaging lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If RFID transponders are applied after container production in downstream processes, then container identification is achieved, but the identification timing is delayed and additional downstream equipment is required
Solution Approach 1:
The printing device applies conductive ink to form RFID antenna structures on the container surface during the blowing process, before the container leaves the molding station. This preliminary action eliminates the need for separate downstream RFID application equipment and enables immediate identification capability.
Solution Approach 2:
The printing device is integrated directly into the blowing device structure, combining the container formation process with the RFID antenna application process. This merging eliminates separate identification equipment and reduces overall system complexity.
2Loss of time
If printing devices are integrated into the blowing device, then immediate identification is enabled, but the device structure becomes more complex
Solution Approach 1:
The printing device serves multiple functions: it applies conductive ink for RFID antenna formation, applies insulating ink layers, and can potentially apply other functional coatings. This multi-functionality justifies the added complexity by eliminating multiple separate processes.
Solution Approach 2:
The patent replaces mechanical RFID transponder application methods with a printing-based approach using conductive ink. This substitution simplifies the overall system by using a more versatile printing mechanism instead of complex mechanical assembly processes.
3Productivity
If conductive ink is applied during the blowing process, then RFID transponders can be formed immediately, but the blowing process parameters must be precisely controlled
Solution Approach 1:
The control device monitors the blowing process parameters and adjusts the printing operation accordingly. This feedback mechanism ensures that the conductive ink is applied at the correct time and under the correct conditions, maintaining manufacturing precision while enabling continuous production.
Solution Approach 2:
The printing device is designed to adapt to the dynamic conditions of the blowing process, adjusting its operation based on real-time process parameters. This dynamic adaptation allows the system to maintain precision despite the varying conditions inherent in the blowing process.
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
Enables immediate identification and control of containers, allowing for regulated material flow and efficient communication throughout the production line, from filling to packaging, by applying smart labels directly during the production process, enhancing operational efficiency and reducing the need for additional downstream identification systems.
Implementation Method 1
The printing device preferably has at least one printing element which applies and particularly preferably sprays an electrically conductive substance to the containers. A printing device in the form of a print head of an inkjet printer is therefore preferably used.
Data Source
Figure 1~2
Figure 3a~7
AI summary
The device (1) has a blower device (2) for expanding a preform to a plastic container (10) in a set of blowing stations (4). A transport device (8) carries and individually transports the container expanded in the blowing stations, and a printer (12) i.e. inkjet printer, applies a logo on a smart label on the container, when the container is transported in the transport device. The printer has a set of printing elements for applying electrically conductive substance on the container and is fixedly arranged. An independent claim is also included for a method for treating i.e. expanding, a plastic preform to plastic container.