Additive Manufacturing Docking Handle for Controlled Powder Dispensing
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Solution Overview
Problem
Existing additive manufacturing systems lack a comprehensive solution for securely docking and controlling the dispensing of materials, such as powders, from hoppers to ensure stable and controlled delivery while maintaining environmental conditions, particularly preventing oxidation and moisture exposure.
Innovation Solution
A docking arrangement with an operating handle and actuator system that allows for manual or automatic control of a valve arrangement, ensuring secure coupling and controlled dispensing of materials through a rotatable shaft and lever mechanism, featuring a biasing member and rotation retention mechanism to maintain operational states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual control of valve arrangement is used, then ease of operation is improved, but automation extent deteriorates
Solution Approach 1:
An actuator is introduced as an intermediary device between the control system and the valve arrangement. The actuator includes a drive shaft that can be manually operated or automatically controlled, serving as a mediator that enables both manual and automated operation modes. This resolves the contradiction by providing a unified interface that accommodates both operational requirements.
2Reliability
If secure coupling of hopper to component is implemented, then reliability is improved, but device complexity worsens
Solution Approach 1:
The coupling system is segmented into distinct functional components: a docking arrangement with a docking surface, a coupling mechanism with movable coupling members, and a retention system. This segmentation allows each component to perform its specific function efficiently while maintaining overall system reliability without excessive complexity.
Solution Approach 2:
The coupling members are designed to be movable rather than fixed, allowing them to adapt to positioning variations and ensure reliable coupling. The dynamic nature of the coupling system enables automatic adjustment to maintain secure connection between the hopper and component, improving reliability without requiring overly complex fixed structures.
3Manufacturing precision
If environmental control is maintained at coupling, then manufacturing precision is improved, but device complexity worsens
Solution Approach 1:
The environmental control function is merged with the coupling mechanism. The docking arrangement incorporates sealing elements and environmental control features directly into the coupling interface between hopper and component. This integration ensures that environmental conditions (such as inert atmosphere) are maintained at the coupling point without requiring separate, complex environmental control systems.
Data Source
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AI summary
A Docking Arrangement for an Additive Manufacturing Process An operating handle (50) for controlling the operational state of a valve arrangement (26) associated with a container (12) to control dispensing of material from the container (12) to a component of an additive manufacturing process. The operating handle (50) includes a rotatable shaft 56 which is coupled to the valve arrangement (26) and is rotatable between a plurality of angular positions corresponding one or more operational states of the valve arrangement (26). A lever (52) is operatively coupled to the shaft (56) and is configured to cause rotation of the shaft (56) between the plurality of angular positions upon rotation of the lever (52). The handle (50) is also rotatable under the operation of an actuator (40) provided as part of a docking arrangement (10) associated with the component.