Screen Mask Exchange Unit for Printing Devices
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Solution Overview
Problem
Existing printing devices require excessive time for exchanging screen masks due to the need for separate spaces for complete separation from the automatic conveyance vehicle and the accommodation device, which complicates the vertical adjustment process.
Innovation Solution
A printing device with a frame exchanging unit that includes an accommodation rack with multiple shelf sections for efficiently exchanging multiple screen masks at once, allowing for simultaneous exchange of all exchangeable members, reducing the need for multiple spaces and simplifying the exchange process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate spaces are provided for complete separation of exchangeable member from automatic conveyance vehicle and accommodation device, then exchangeable member can be completely separated and exchanged, but much time is needed for the exchange process
Solution Approach 1:
The patent merges the separation function into the accommodation device itself, which is positioned adjacent to the automatic conveyance vehicle. The accommodation device includes a receiving portion that can directly receive exchangeable members from the conveyance vehicle, eliminating the need for separate spaces. This integration allows complete separation to be achieved within the existing spatial arrangement, significantly reducing exchange time while maintaining reliability.
2Adaptability or versatility
If vertical position adjustment is used for exchanging exchangeable members, then exchange can be performed with available spaces, but much time is needed for the exchange process
Solution Approach 1:
The patent extracts the vertical adjustment function from the exchange process. Instead of adjusting the vertical position of the accommodation device to facilitate exchange, the design provides a receiving portion at the same vertical level as the automatic conveyance vehicle. This extraction eliminates time-consuming vertical adjustments while still utilizing available spaces effectively through the adjacent positioning of the accommodation device.
3Reliability
If multiple spaces are provided for exchange operation, then complete separation can be achieved, but device complexity and space requirements increase
Solution Approach 1:
The patent combines multiple functions into the accommodation device: it serves as both the storage accommodation and the separation interface with the automatic conveyance vehicle. The receiving portion is integrated directly into the accommodation device structure, allowing it to perform both accommodation and separation functions simultaneously. This merging significantly reduces device complexity and space requirements while ensuring complete separation of exchangeable members.
Data Source
AI summary
A printing device includes a printing section configured to execute a printing process of a viscous fluid on a printing target using a screen mask, and a receiving section configured to receive an accommodation rack having multiple shelf sections for accommodating frames configured to support exchangeable members for a printing process that is executed at the printing section.