Liquid discharge apparatus and dyeing apparatus
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Solution Overview
Problem
Existing liquid discharge apparatuses lack an efficient method to check the state of liquid application on linear members, such as threads, making it difficult to verify if the desired color is correctly applied.
Innovation Solution
A novel liquid discharge apparatus featuring a head with a nozzle array and a state check unit that guides the linear member to form a two-dimensional surface, allowing for easy visualization and detection of liquid application state by arranging droplets from the same nozzle linearly along the conveyance direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a liquid discharge apparatus uses a head with nozzles to apply liquid to a linear member, then the liquid application process is automated and efficient, but it becomes difficult to check whether the liquid has been correctly applied to the linear member
Solution Approach 1:
The patent transforms the linearly arranged droplets into a two-dimensional pattern by guiding the linear member to form loops. This dimensional transformation allows droplets from the same nozzle to be spatially separated and visually identifiable in a 2D plane, solving the detection difficulty while maintaining automated liquid application
Solution Approach 2:
The patent forms loops of the linear member in advance before liquid application, creating a predetermined path that will naturally arrange droplets in a checkable pattern. This preliminary structuring enables easy verification of liquid application state without requiring additional complex detection systems
Data Source
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AI summary
A liquid discharge apparatus (100) includes a head (310) configured to discharge a liquid from nozzles (311) onto a linear member (10) conveyed in a conveyance direction, the head (310) including a nozzle array (313) including the nozzles (311) arrayed along the conveyance direction, and a state check unit (700) downstream of the head (310) in the conveyance direction, the state check unit (700) configured to guide the linear member (10) to form a two-dimensional surface (730) with the linear member (10).