Sub-Assembly Transfer Mechanism for Low-Friction Reflow Soldering
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Solution Overview
Problem
Existing devices for relocating assemblies in process chambers for reflow soldering are inefficient and costly, lacking a simple and effective mechanism for handling assemblies during thermal processes.
Innovation Solution
A device utilizing displacement means to move assemblies between staging and working areas within a process chamber, employing compressive or tensile forces, combined with support and restraint mechanisms to ensure precise and low-resistance movement, allowing for efficient assembly handling and reduced exposure to thermal fluctuations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If complex existing relocation devices are used, then assemblies can be moved between staging and working areas, but the device complexity and cost increase
Solution Approach 1:
The relocation system is divided into independent modular components: support devices with bearing elements for movement, separate displacement means for applying force, and optional restraint devices. Each module performs a specific function and can be independently configured, reducing overall system complexity while maintaining full relocation capability.
Solution Approach 2:
The bearing elements enable the assembly to move along the support device structure using its own weight and the applied displacement force, without requiring complex active drive mechanisms. The system uses passive bearing surfaces that reduce friction naturally, allowing simple push/pull displacement to achieve efficient relocation.
2Productivity
If assemblies are moved through the process chamber, then production efficiency increases, but exposure to thermal fluctuations and harmful factors increases
Solution Approach 1:
Assemblies are prepared and staged in the provisioning zone outside the process chamber before being needed. The support device holds assemblies ready for quick insertion, and the displacement means enables rapid movement when required, minimizing the time assemblies spend in transit and reducing thermal exposure during handling.
Solution Approach 2:
The support device with bearing elements acts as an intermediary transport mechanism that connects the external provisioning area with the process chamber interior. This dedicated interface structure provides controlled, low-friction movement paths that minimize unnecessary exposure to thermal environments while enabling efficient assembly delivery and removal.
3Speed
If displacement force is applied to move assemblies, then relocation speed increases, but friction and resistance during movement increase
Solution Approach 1:
The support device with bearing elements is prepared in advance to provide low-friction contact surfaces. By pre-configuring the bearing means at strategic locations, the system reduces the force needed for displacement while maintaining high relocation speed, as the assemblies roll or slide along prepared paths rather than dragging across high-friction surfaces.
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
Enables quick, cost-effective, and precise relocation of assemblies during reflow soldering, minimizing friction and thermal exposure, and facilitating compact arrangement and controlled movement within the process chamber.
Implementation Method 1
at least one displacement means (7) which is movable or changeable in its position and/or orientation, wherein the at least one assembly (2, 2') is set into a displacement movement (9), at least section by means of a force (8), in particular a compressive force, acting on the assembly (2, 2'), which is transmitted and/or generated by the displacement means (7)
Implementation Method 2
a force (8), in particular a compressive force, acting on the assembly (2, 2')
Implementation Method 3
The at least one assembly (2, 2') can be arranged, at least partially, preferably predominantly, on the at least one bearing means (10, 10'), in particular directly, during the displacement movement (9)
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
Device (1) for shifting at least one sub-assembly (2, 2') between a provisioning zone (3) and a working zone (4) of at least one process chamber (5) of a process-chamber apparatus (6) for soldering, more particularly for reflow soldering, by at least one shifting means (7), wherein, by means of a force (8), in particular a compressive force, transferred or generated by the shifting means (7), in particular directly, and acting on the at least one sub-assembly (2, 2'), at least some parts of the sub-assembly (2, 2') perform a shifting movement (9), or such a shifting movement (9) can be performed, in such a way that the at least one sub-assembly (2, 2') is shifted.