Supply Unit Detection for Printing Device Interference
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Solution Overview
Problem
In printing devices that handle viscous fluids, the collecting plate and supply device often interfere with each other due to their shared operational space, leading to physical interference and operational challenges.
Innovation Solution
A supply unit is designed with a detection member and supply section detecting system that ensures the supply section operates in a passage space where it does not contact the collection section, preventing interference by moving the supply section within a predetermined non-interference area, using a detection member and non-contact sensors to determine its position relative to the collection section.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If both the collecting plate and supply device are provided in the printing device, then the cream solder can be collected and supplied automatically, but the members interfere with each other due to operating in a common work region
Solution Approach 1:
The supply device is configured to operate in a different spatial dimension or plane than the collection plate. The supply device moves in a supply operation direction that is distinct from the collection direction, creating separate operational zones within the same device. This dimensional separation allows both automatic supply and collection functions to coexist without physical interference.
Solution Approach 2:
The printing device is divided into distinct functional sections: a collection section with a collection plate for gathering cream solder, and a separate supply section with a supply device for delivering cream solder to the mask. Each section operates independently in its designated region, eliminating interference while maintaining automated functionality.
2Area of stationary object
If the supply device operates in the same work region as the collection plate, then space utilization is improved, but physical contact and interference between members occurs
Solution Approach 1:
The supply device utilizes a different operational dimension by moving in a supply operation direction that is spatially separated from the collection plate's movement path. The detection member monitors the supply device's position to ensure it remains in a passage space where no contact with the collection plate occurs, maintaining reliability while efficiently utilizing the work region.
Solution Approach 2:
A detection member acts as an intermediary monitoring system that detects the position of the supply device and ensures it operates within a safe passage space. This intermediary detection mechanism prevents direct contact between the supply device and collection plate, maintaining operational reliability while allowing both components to share the work region.
Data Source
AI summary
The supply unit is used in a printing device including a printing head configured to perform printing process of a viscous fluid on a printing target using a screen mask, a collection section having a collection member configured to contact the screen mask to collect and move the viscous fluid and a collecting and moving section configured to move the collection member in a predetermined printing direction. The supply unit includes a supply section having a mounting section capable of mounting and dismounting a cartridge accommodating the viscous fluid, a driving section configured to move the supply section in the supply operation direction, a detection member, and a supply section detecting section configured to detect whether the supply section is positioned in a passage space where the collection section and the supply section do not contact each other by the position of the detection member.