Paste Supply Apparatus Preventing Drip via Inner Lid Lift
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Solution Overview
Problem
Existing paste supply apparatuses for screen printing face issues with paste dripping from the through hole, leading to remaining paste being difficult to separate effectively.
Innovation Solution
A paste supply apparatus that includes a pot holding part for a tubular container with a through hole, an extrusion member to hold and move the inner lid, and a stopper to collide with the container when the extrusion member is pulled up, preventing further paste flow by impacting the container and stopping the paste from dripping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If paste is extruded from the through hole using a syringe or direct extrusion, then paste supply efficiency is improved, but paste remains with dripping from the through hole
Solution Approach 1:
The inner lid is pulled up in advance before the paste pot is removed from the holder, creating a vacuum effect that prevents paste from dripping into the holder. This preliminary action of lifting the lid before removal solves the problem of paste remaining with dripping.
Solution Approach 2:
The holder acts as an intermediary component between the paste pot and the extrusion system. It provides a stopping position for the paste pot and facilitates the separation of the inner lid from the paste pot, enabling clean separation without paste dripping.
2Loss of substance
If the inner lid is pulled up quickly to prevent paste dripping, then paste separation is improved, but the container may collide with the stopper causing impact
Solution Approach 1:
The stopper is positioned in advance to provide a cushioning stopping position for the container. When the inner lid is pulled up quickly, the container collides gently with the stopper rather than falling freely, cushioning the impact and preventing harmful effects.
Solution Approach 2:
The stopper is designed as a simple, disposable component that can be easily replaced if damaged. It provides a cost-effective solution for preventing container impact without requiring complex protective mechanisms.
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
Effectively separates remaining paste from the through hole, preventing it from dripping and ensuring efficient paste supply during screen printing by using a combination of extrusion and collision mechanisms.
Implementation Method 1
an extrusion member configured to hold the inner lid of the paste pot held in the pot holding part; an inner lid holding part with which the inner lid is held in the extrusion member; an extrusion member elevation part that upwardly and downwardly moves the extrusion member
Implementation Method 2
a stopper with which the container upwardly moved together with the inner lid collides when the extrusion member holding the inner lid is pulled up by the extrusion member elevation part
Data Source
AI summary
A paste supply apparatus includes a pot holding part that holds a paste pot that includes a tubular container which receives paste and is provided with a through hole in a bottom part of the tubular container and an inner lid movable inside the tubular container, in a posture in which the paste can be extruded downwardly from the through hole, an extrusion member configured to hold the inner lid of the paste pot held in the pot holding part, an inner lid holding part with which the inner lid is held in the extrusion member, an extrusion member elevation part that upwardly and downwardly moves the extrusion member, and a stopper with which the container upwardly moved together with the inner lid collides when the extrusion member holding the inner lid is pulled up by the extrusion member elevation part.