Elastic Conduit Paste Dosing for Abrasion-Resistant Dispensing
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Solution Overview
Problem
Existing devices for applying high viscosity abrasive substances like brazing paste are unable to provide continuous or intermittent dispensing efficiently, either manually or in automated processes, due to abrasion issues with sliding surfaces and limited adaptability for robotic use.
Innovation Solution
A device comprising an elastically deformable tubular conduit and a rotating spindle with a spiral thread, supported by a backing structure, which allows for adjustable fluid flow and reduced abrasion through elastic deformation and stress distribution, enabling continuous or intermittent dispensing of high viscosity fluids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional devices with sliding surfaces are used to apply high viscosity abrasive substances, then the substance can be applied, but the sliding surfaces are subjected to abrasion reducing tool life
Solution Approach 1:
The patent employs an elastically deformable conduit instead of rigid sliding surfaces. The conduit flexes under the action of the spiral thread, allowing the abrasive paste to be propelled without direct contact between abrasive particles and fixed sliding surfaces, thereby eliminating wear and extending tool life while maintaining application capability
Solution Approach 2:
The patent replaces the traditional mechanical sliding surface system with an elastic deformation system. Instead of using rigid surfaces that slide against each other, the system uses the elastic deformation of the conduit under spiral thread action to propel the paste, substituting a wear-prone mechanical system with a wear-resistant elastic system
2Manufacturing precision
If pistons or plungers are used to dispense the fluid, then dosing can be achieved, but the device requires complex movement mechanisms and cannot dispense continuously
Solution Approach 1:
The patent enables continuous dosing action through the continuous rotation of the spindle with spiral thread. As the spindle rotates, the spiral thread continuously engages and propels the paste through the elastic conduit, eliminating the need for reciprocating piston or plunger movements and enabling uninterrupted material flow
Solution Approach 2:
The patent introduces dynamic flexibility through the elastically deformable conduit that adapts to the spiral thread's rotation. The conduit dynamically deforms and recovers with each rotation, allowing continuous material propulsion without the rigid, complex reciprocating mechanisms of traditional piston or plunger systems
3Ease of operation
If the device is designed for manual handling, then operator control is possible, but adaptation to robotic arms is limited
Solution Approach 1:
The patent designs the device with universal mounting capabilities that allow it to function both as a manually held tool and as a robotic end-effector. The device can be gripped by an operator's hand or mounted on a robotic arm, providing multi-functionality and broad adaptability across different application scenarios without requiring design modifications
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
The device effectively addresses the challenge of continuous or intermittent dispensing of high viscosity abrasive substances, extending tool life and enabling versatile manual or robotic application in automated processes.
Implementation Method 1
an elastically deformable tubular conduit with an end in fluid communication with the inlet and with the opposite end in fluid communication with the outlet
Implementation Method 2
a rotating spindle with at least one spiral thread for driving the fluid housed in the tubular conduit, this spindle being adapted for pressing on the tubular conduit with at least one part of its spiral thread
Data Source
AI summary
A device for applying fluid having a pasty consistency is provided. The present invention relates to a device for applying brazing paste manually or by means of a robotic arm, having an elastically deformable conduit and a drive spindle.