PCB Double-Track Fixed Setup for Synchronous Placement
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Solution Overview
Problem
Assembly lines with printed circuit board double transport systems face inefficiencies in production time and equipment usage due to asynchronous component placement, leading to unproductive waiting times and uneven loading of component placement heads.
Innovation Solution
A method and control device for determining a fixed setup for assembly lines with printed circuit board double transport systems, optimizing the assignment of component types to printed circuit board types to maximize production time savings by using mixed integer programming, ensuring synchronous operation and uniform loading of component placement heads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If asynchronous component placement is used on double transport tracks, then equipment can be utilized, but unproductive waiting times occur and component placement heads are unevenly loaded
Solution Approach 1:
The patent implements synchronous component placement where both transport tracks operate simultaneously and continuously. While the first track places components on the first side of printed circuit boards, the second track places components on the second side of other printed circuit boards at the same time. This eliminates idle waiting periods and maintains continuous productive action on both tracks, resolving the contradiction between equipment utilization and unproductive waiting time.
Solution Approach 2:
The system dynamically assigns different printed circuit board types to the two transport tracks based on real-time production requirements and setup configurations. The control device optimizes the distribution of component placement tasks between synchronous and asynchronous modes, adjusting operational parameters dynamically to balance workload and eliminate waiting time while maintaining high throughput.
2Adaptability or versatility
If component setup is changed frequently to accommodate different printed circuit board types, then production flexibility is maintained, but setup time and complexity increase
Solution Approach 1:
The patent segments the production system into two independent transport tracks, each capable of handling different printed circuit board types simultaneously. By dividing the component placement workload between Track 1 and Track 2, the system can process diverse board types without requiring complete setup changes. Each track maintains its own component feed devices and placement heads, allowing independent configuration and reducing overall setup complexity.
Solution Approach 2:
The control device implements a universal management system that coordinates both transport tracks and multiple component feed devices. This universal control architecture allows the same hardware infrastructure to handle various printed circuit board types by dynamically assigning tasks and routing components appropriately, maintaining production flexibility without increasing physical setup complexity.
3Productivity
If synchronous operation is implemented on both transport tracks, then production time is reduced, but coordination complexity and control requirements increase
Solution Approach 1:
The control device incorporates feedback mechanisms that continuously monitor the status of both transport tracks, component feed devices, and placement heads. Real-time feedback on component availability, board positioning, and placement progress allows the control system to dynamically adjust synchronous operations, coordinate track speeds and timing, and resolve conflicts automatically, managing coordination complexity through intelligent feedback control.
Solution Approach 2:
The control device acts as an intermediary between the two transport tracks and the central control system. It coordinates synchronous operations by mediating resource allocation, timing synchronization, and conflict resolution between Track 1 and Track 2. This intermediary control layer simplifies the overall system architecture by handling coordination complexity locally while maintaining high-level synchronous productivity.
Data Source
AI summary
A method for identifying at least one fixed setup for an assembly line includes a circuit board double transport system of which the first transport track and second transport track transport double-sided circuit boards. The method includes acquiring a quantity of circuit board types which are each associated with double-sided circuit boards acquiring a quantity of component types acquiring a production time for synchronous population of the first and second side of each associated double-sided circuit; acquiring a production time for asynchronous population; acquiring a number of fixed setup clusters; assigning circuit board types to each fixed setup cluster; and optimizing the assignment process in such a way that the production time saving identified from the acquired production times of the synchronous and asynchronous population over all associated double-sided circuit boards is maximized.