Rotating Piston Fluid Supply Apparatus for Miniaturization
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Solution Overview
Problem
Existing solder supply apparatuses face challenges in miniaturization due to the need for large drive mechanisms with high motor output to reliably press and move the supply container, making it difficult to achieve efficient and compact fluid supply systems.
Innovation Solution
A fluid supply apparatus featuring a piston with a through hole, supported by a piston support portion, and a drive mechanism that rotates the piston and container relative to each other, reducing insertion resistance and allowing for reliable fluid discharge with a small motor, along with a nozzle and opening/closing mechanism to adjust discharge amounts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large drive mechanism with high motor output is used to press and move the supply container, then the fluid supply reliability is improved, but the apparatus size increases and miniaturization becomes difficult
Solution Approach 1:
The piston is designed with a tapered outer circumferential surface that increases in diameter in the insertion direction. This curved/tapered geometry reduces contact area and friction resistance between the piston and container wall, enabling reliable fluid supply with a small motor while achieving miniaturization of the apparatus
2Device complexity
If the piston is inserted into the container without relative rotation, then the structure is simpler, but the insertion resistance increases and requires a large drive mechanism
Solution Approach 1:
The tapered outer circumferential surface of the piston creates a self-aligning effect during rotation, distributing contact forces and reducing peak friction. The rotational motion combined with the tapered geometry significantly reduces insertion resistance compared to linear insertion, allowing the use of smaller drive mechanisms
3Quantity of substance
If the piston is moved to remove from the container, then the discharge amount can be adjusted, but the pressure applied to the fluid decreases
Solution Approach 1:
The system enables dynamic control of piston position and rotation, allowing adjustment of discharge amount by controlling the extent of piston insertion. The tapered geometry ensures that even at reduced insertion depths, adequate pressure is maintained through the rotational pressing action, enabling flexible discharge control across varying pressure conditions
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
Enables miniaturization of the solder supply system while ensuring reliable fluid supply and precise control over discharge amounts, even with a small motor, reducing waste and improving workability.
Implementation Method 1
the piston is inserted into the container with the container and the piston being relatively rotated, resulting in reduction in resistance of the piston with respect to the container
Implementation Method 2
The discharge adaptor is caused to enter the supply container fixed by the supply container member, resulting in application of a pressure to the solder in the supply container
Data Source
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AI summary
A fluid supply apparatus (100) includes a piston (106), a piston support portion (102) to support the piston, a container support portion (104) capable of supporting a container (30) in which a fluid is contained, and a drive mechanism. The drive mechanism (103) drives at least one of the container support portion and the piston support portion in a direction in which the piston is inserted into the container at a time when supply of the fluid is performed and drives at least one of the container support portion and the piston support portion in a direction in which the piston is relatively removed from the container at a time when the supply of the fluid is stopped.