Vibration Absorbing Means for Seamless Capsule Nozzle
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Solution Overview
Problem
Existing seamless capsule manufacturing apparatuses face issues with vibration noise transmission from the liquid feeding unit to the nozzle, leading to nonuniform liquid layers, uneven droplet diameters, and variations in capsule thickness and particle size, affecting product quality.
Innovation Solution
Incorporating a vibration absorbing means, such as a flexible tube passage or an elastic vibration absorbing block, between the liquid feeding unit and the nozzle to absorb and prevent the transmission of vibration noise, ensuring that only the intended vibration unit-induced vibration is applied to the nozzle during capsule formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a liquid feeding pump is used to supply capsule forming liquid to the nozzle, then the liquid supply function is improved, but vibration noise is transmitted to the nozzle causing nonuniform liquid layers and droplet diameter variations
Solution Approach 1:
A vibration absorbing member is introduced as an intermediary element between the liquid feeding pump and the nozzle. This member absorbs the vibration noise generated by the pump, preventing it from being transmitted to the nozzle. As a result, the liquid layer becomes uniform and droplet diameter variations are eliminated, while the liquid supply function remains effective.
2Ease of manufacture
If vibration is applied to the nozzle to divide jet liquid flow into multilayer droplets, then capsule formation is achieved, but additional vibration noise from the liquid feeding unit causes nonuniform liquid layers and capsule defects
Solution Approach 1:
The vibration absorbing member converts the harmful vibration noise from the liquid feeding pump into a beneficial filtering action. By absorbing the unwanted vibrations, the member allows only the intended vibration from the vibration applying means to reach the nozzle, ensuring uniform liquid layers and preventing capsule defects while maintaining capsule formation capability.
3Stability of the object's composition
If the liquid feeding tube is rigid to ensure stable liquid flow, then flow stability is improved, but vibration from the pump is transmitted to the nozzle
Solution Approach 1:
The vibration absorbing member serves as a mediator in the liquid feeding tube system. It is positioned between the pump and the nozzle to interrupt the transmission path of vibrations. The member absorbs the harmful vibrations while allowing the liquid flow to remain stable, effectively decoupling the rigid tube's flow stability from the vibration transmission problem.
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 effectively reduces vibration noise, stabilizing the formation process and enhancing the quality of seamless capsules by preventing unwanted vibration from affecting the nozzle, resulting in consistent and high-quality products.
Implementation Method 1
a vibration absorbing means arranged between the liquid feeding unit and nozzle and for absorbing the vibration generated by the liquid feeding unit in the tube passage
Implementation Method 2
ejects a droplet from a nozzle into hardening liquid to harden at least the surface area of the droplet
Data Source
AI summary
In a seamless capsule manufacturing apparatus that ejects a droplet from a nozzle into hardening liquid to manufacture a seamless capsule SC, tube passages which are synthetic resin tubes are provided as flexible sections between pumps and the nozzle. The vibration caused by the pumps is absorbed in the flexible sections and thus is not transmitted to the nozzle, whereby eyes or the like of the seamless capsule caused by vibration noises can be suppressed. Instead of a synthetic resin tube, a vibration absorbing block formed of an elastic member may be attached to the tube passages. Alternatively, a vibration absorbing unit, which is provided with a pad formed of an elastic member and for holding the tube passages, may be provided.