Driverless Powder Module Transfer Between Additive Manufacturing Stations
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Solution Overview
Problem
Existing additive manufacturing systems lack an efficient and automated method for conveying and intermediate storage of powder modules between different working stations.
Innovation Solution
A modular system comprising freely positionable mobile storage units and driverless conveying units that enable concurrent storing and conveying of powder modules, allowing seamless transfer between working stations using standardized mounting devices and communication interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If manual handling of powder modules is used between working stations, then device complexity is reduced, but productivity and automation level deteriorate
Solution Approach 1:
The conveyance system is segmented into independent mobile conveying units that can operate autonomously. Each unit is a self-contained module with its own drive device and control system, allowing the overall system to achieve high automation without requiring a complex centralized infrastructure. The segmentation enables flexible deployment and simplifies individual unit design.
Solution Approach 2:
The mobile conveying units are equipped with driverless autonomous navigation capabilities, allowing them to autonomously transport powder modules between working stations without human intervention. The units self-manage their movement, positioning, and transfer operations, achieving high automation while keeping each unit relatively simple in design.
2Adaptability or versatility
If fixed storage locations for powder modules are used, then device complexity is reduced, but adaptability and flexibility deteriorate
Solution Approach 1:
The storage system transitions from fixed to dynamic mobile storage units that can be repositioned as needed. The mobile conveying units can dynamically adjust their positions and routes based on production requirements, enabling flexible adaptation to different manufacturing scenarios while maintaining relatively simple individual unit designs.
Solution Approach 2:
The mobile conveying units serve multiple functions: they act as both conveyance devices and intermediate storage units. Each unit can hold powder modules and transport them between different working stations, providing universal functionality that enhances system flexibility without requiring complex specialized equipment for each function.
3Productivity
If automated conveying system is implemented, then productivity is improved, but device complexity increases
Solution Approach 1:
The automated conveying system is divided into independent mobile units that can operate in parallel, increasing overall throughput without proportionally increasing system complexity. Each unit maintains simple autonomous operation while the collective system achieves high productivity through coordinated multi-unit operation.
Solution Approach 2:
The mobile conveying units enable continuous automated transport of powder modules between working stations, eliminating idle time and manual handling interruptions. The system maintains continuous productive operation through autonomous units that can continuously navigate, transport, and transfer modules, maximizing throughput while keeping individual units relatively simple.
Data Source
AI summary
A system for additive manufacturing of three-dimensional objects, comprising one or more working stations, which are provided for performing at least one working process in the additive manufacturing of three-dimensional objects, at least one freely positionable mobile storage unit comprising a rack-like storage device comprising at least one storage room provided for storing at least one powder module, especially for the purpose of conveying the powder module between different working stations of the system, and at least one driverless, freely movable mobile conveying unit comprising a receiving device provided for receiving at least one mobile storage unit for the purpose of conveying the storage unit between different working stations of the system.