UV Irradiation Part Positioning via Protrusion-Groove Interface
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing printing apparatuses face challenges in accurately positioning the ultraviolet irradiation part to prevent ultraviolet light from reaching the print head, leading to reduced ink discharge stability, and current solutions require specialized jigs that increase cost and complexity.
Innovation Solution
A printing apparatus design featuring a supporting part, a head for discharging ultraviolet-curable ink, an ultraviolet irradiation part with a protrusion, and an attaching position adjustment part including guide parts to facilitate precise positioning of the ultraviolet irradiation part relative to a frame, ensuring accurate alignment and blocking of ultraviolet light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the ultraviolet irradiation part is highly accurately positioned using a specialized jig, then the positioning accuracy is improved, but the task and cost increase
Solution Approach 1:
The ultraviolet irradiation part itself serves as the positioning reference through its integrated protrusion structure. The protrusion fits into the guiding groove of the frame, enabling the component to self-position without external specialized jigs, thereby reducing task and cost while maintaining high positioning accuracy
Solution Approach 2:
The positioning function is segmented from the overall structure into a dedicated protrusion-groove interface. This separate positioning mechanism allows the ultraviolet irradiation part to be independently positioned relative to the frame and head, achieving high positioning accuracy through a simple, focused design rather than a complex integrated system
2Object-affected harmful factors
If a blocking member is provided to reduce ultraviolet light reaching the head, then the ultraviolet light exposure is reduced, but the positioning accuracy may be insufficient without specialized jigs
Solution Approach 1:
The blocking function and positioning function are merged into a single integrated protrusion structure. The protrusion simultaneously blocks ultraviolet light from reaching the head and provides precise positioning by fitting into the frame's guiding groove, eliminating the need for separate blocking members and specialized positioning jigs
Solution Approach 2:
The protrusion acts as an intermediary element between the ultraviolet irradiation part and the frame. It mediates both the optical blocking function (preventing UV light exposure) and the mechanical positioning function (ensuring accurate alignment), resolving the contradiction between these two requirements
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 solution allows for simple and highly accurate positioning of the ultraviolet irradiation part, effectively reducing ultraviolet light exposure to the print head and enhancing ink discharge stability while minimizing costs and complexity.
Implementation Method 1
an ultraviolet irradiation part disposed at a position opposite the supporting part such that a direction along a width direction of the printing medium is a longitudinal direction of the ultraviolet irradiation part, the ultraviolet irradiation part being configured to irradiate, with ultraviolet light from an irradiation surface thereof, the printing medium on which the ink is discharged
Implementation Method 2
a protrusion fixed to the ultraviolet irradiation part and protruding further toward the supporting part side than the irradiation surface does
Data Source
AI summary
A printing apparatus includes a supporting part for a printing medium, a head, an ultraviolet irradiation part that emits from an irradiation surface thereof ultraviolet light, a protrusion fixed to the ultraviolet irradiation part, a frame, an attaching part that is attachable to the frame with an attaching position thereof adjusted, and a guide part that is attachable to the frame and guides the adjustment of the attaching position of the attaching part with respect to the frame. The guide part includes first and second butted parts, and the attaching part includes a butting part having a width smaller than a spacing between the first and second butted parts, and a distance between the irradiation surface and the supporting part is a sum of a difference between the width of the butting part and the spacing and a protruding length of the protrusion from the irradiation surface.