Segmented Reflow Soldering Conveyors for Continuous Product Changeovers
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Solution Overview
Problem
Reflow soldering systems experience downtime and inefficiencies due to partial utilization of process chambers during product changes, temperature adjustments, and conveyor width adjustments, limiting flexibility and throughput.
Innovation Solution
A reflow soldering system with multiple conveyor belts controlled independently by an electronic computing device, allowing zone-based segmentation and variable width adjustments, along with independent control of heating devices, enables flexible and efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single conveyor belt is used for transporting components through the reflow soldering system, then the system structure is simple, but the system experiences downtime during product changes and cannot process different components simultaneously
Solution Approach 1:
The reflow soldering system is divided into multiple independently controllable zones, each with its own conveyor belt. This segmentation allows different zones to process different components simultaneously, eliminating downtime during product changes while maintaining manageable system complexity through modular design.
Solution Approach 2:
The conveyor belt system incorporates variable speed control for each zone, allowing the system to dynamically adjust transport speeds according to different product requirements. This dynamic capability enables flexible processing of multiple component types without requiring complete system shutdowns.
2Adaptability or versatility
If the conveyor belt width is fixed, then the system structure is simple, but the system cannot accommodate components of different widths during product changes
Solution Approach 1:
The conveyor belt system incorporates variable width capability through adjustable side guides or expandable belt sections. This dynamic adjustment mechanism allows the system to accommodate different component widths without requiring complete system reconfiguration, maintaining adaptability while controlling complexity through automated control.
3Productivity
If the entire reflow soldering system is shut down for temperature adjustments during product changes, then temperature control is simplified, but production downtime increases
Solution Approach 1:
The heating system is divided into multiple independently controllable temperature zones corresponding to different conveyor belt sections. This segmentation allows selective heating of only those zones currently in use, enabling continuous production in active zones while simplifying temperature control in inactive zones, thereby maintaining both productivity and temperature control.
Solution Approach 2:
Each temperature zone is optimized with specific heating parameters suited to the local processing requirements. This localized temperature control allows different parts of the system to operate at different temperatures simultaneously, maintaining production continuity while simplifying the overall temperature management through distributed control.
4Productivity
If multi-lane transport systems are used to increase throughput, then productivity improves, but the system loses flexibility in processing different components
Solution Approach 1:
The multi-lane transport system incorporates dynamic lane assignment and variable speed control for each lane. This allows the system to flexibly allocate different lanes to different component types based on current production requirements, maintaining high throughput while preserving adaptability through intelligent, real-time control adjustments.
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
Reduces downtime, increases flexibility, and enhances throughput by allowing simultaneous processing of different components, leading to energy savings and cost savings through intelligent control and modular operation.
Implementation Method 1
In particular, it can be provided that only preheating for the soldering or a predetermined cooling process for the soldering is provided
Implementation Method 2
The rotary fans can then transfer appropriately preheated air, for example, based on an electrical heating process, to the component
Implementation Method 3
reflow soldering system for carrying out a soldering process for at least one component
Data Source
Figure 1~2
AI summary
The invention relates to a reflow soldering system (10) for carrying out a soldering process for at least one component (26, 28, 30), having at least one first conveyor belt (18) for transporting the component (26, 28, 30) through the reflow soldering system (10) during the soldering process, and having an electronic computing device (12) for controlling the first conveyor belt (18). The reflow soldering system (10) has at least one second conveyor belt (20) which is attached to the first conveyor belt (18) in a transport direction (32) of the reflow soldering system (10) for the component (26, 28, 30). The electronic computing device (12) is designed to control the second conveyor belt (20) independently of the first conveyor belt (18). The invention further relates to a method.