Continuous Flow Workstation Control for Large Composite Parts
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Solution Overview
Problem
Conventional manufacturing techniques for large and composite parts are not suited for continuous flow manufacturing, as they rely on fixed-base machines and batch processing, limiting the efficient production and movement of parts through production lines.
Innovation Solution
A continuous flow manufacturing system that includes a tool with a machine-readable identifier, multiple workstations with production machines, and a computing device to manage and update process data, enabling the tracking and control of parts and tools throughout the manufacturing process, facilitating the integration of process-related information and efficient movement of parts through the production line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If fixed-base machines and batch processing are used, then manufacturing stability is maintained, but continuous flow manufacturing is prevented
Solution Approach 1:
The patent applies dynamics by making the manufacturing system adaptable and flexible rather than fixed. The modular tooling system allows tools to be dynamically reconfigured and moved between workstations, enabling continuous flow while maintaining manufacturing stability through controlled adaptability
Solution Approach 2:
The manufacturing system is segmented into discrete, modular workstations that can operate independently yet contribute to continuous flow. Each workstation is a self-contained unit with specific capabilities, allowing the system to maintain stability through standardized modules while achieving continuity through their coordinated arrangement
2Productivity
If parts remain stationary at one location until lamination is complete, then process control is simplified, but continuous movement and efficiency are reduced
Solution Approach 1:
The patent implements feedback mechanisms through machine-readable identifiers and computing devices that continuously track parts and tools as they move between workstations. This feedback system maintains process control by providing real-time data on part location, status, and associated manufacturing parameters, enabling continuous flow while preserving control
Solution Approach 2:
The system uses machine-readable identifiers (such as barcodes or RFID tags) as information copies that travel with parts and tools. These identifiers create digital representations of physical objects, enabling tracking and data association without requiring complex physical tracking infrastructure
3Reliability
If machine-readable identifiers and computing devices are added, then tracking and control are improved, but system complexity increases
Solution Approach 1:
The computing device serves multiple functions: it stores process data, retrieves information based on machine-readable identifiers, updates data records, and controls manufacturing operations. This multi-functionality reduces the need for separate specialized systems, improving reliability while managing complexity through consolidation
Data Source
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AI summary
A continuous flow manufacturing system (102) includes a tool (120), configured to hold a part (118). The system also includes a machine-readable identifier (122), associated with the tool and encoded with a tool-identification. The system further includes a plurality of workstations (150). Each one of the plurality of workstations includes a production machine (160), configured to perform a manufacturing operation on a part, and a reader (124), configured to read the machine-readable identifier (118,154). The system also includes a computing device (126), configured to retrieve process-data (106), associated with the tool-identification (162) and a corresponding one of the plurality of workstations, and configured to update the process-data, subsequent to performing the manufacturing operation associated with the corresponding one of the plurality of workstations.