Tin-Plating Sleeve Insertion with Toothed-Belt Wire Feeding
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Solution Overview
Problem
Existing wire feeding devices in tin-plating sleeve insertion machines suffer from insufficient friction force during wire transfer, leading to unstable transportation, and fail to ensure uniform coating of multi-stranded braided wires with rosin flux and tin.
Innovation Solution
An automatic tin-plating sleeve insertion machine with symmetrical upper and lower wire feeding modules, equipped with toothed belts for stable clamping and meshing, and a twisting mechanism to uniformly coat wires with rosin flux and tin, ensuring stable wire transfer and uniform coating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If single-point roller contact is used for wire transfer, then the device structure is simple, but the friction force is insufficient and wire transportation becomes unstable
Solution Approach 1:
The patent transitions from single-point contact (0D/1D) to line contact (1D) by using toothed belts with multiple teeth engaging the wire simultaneously. This dimensional change in contact interface dramatically increases friction force and transportation stability while maintaining relatively simple device structure.
Solution Approach 2:
The wire transfer mechanism is segmented into multiple teeth on the toothed belts, where each tooth provides individual contact points that collectively create stable line contact. This segmentation allows the system to distribute the wire transfer load across multiple points, enhancing reliability without complex mechanisms.
2Device complexity
If traditional wire feeding method is used, then the process is simple, but multi-stranded braided wires cannot be uniformly coated with rosin flux and tin
Solution Approach 1:
The patent applies rosin flux and tin coating to the wire before the insertion process. By performing the coating action in advance on the bare wire, the system ensures uniform coverage of all wire strands before they are inserted into the heat shrink tube, solving the coating uniformity issue for multi-stranded braided wires.
Solution Approach 2:
The patent introduces rosin flux as an intermediary substance between the wire and tin coating process. The rosin flux prepares the wire surface and ensures uniform tin adhesion across all strands of multi-stranded braided wires, achieving consistent coating quality.
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
Enhances the stability of wire transfer and improves the pass rate of subsequent soldering by ensuring uniform coating of rosin flux and tin on wires, particularly multi-stranded braided wires.
Implementation Method 1
the friction force during the transfer is insufficient, making stable transportation impossible
Data Source
AI summary
An automatic tin-plating sleeve insertion machine includes a machine frame, a wire supply mechanism, a twisting mechanism, a rosin flux application mechanism, a tin-dipping mechanism, a wire feeding mechanism, a rotary disc transfer mechanism, a tube supply mechanism, a first hot air spraying mechanism, a direction-changing mechanism, and a second hot air spraying mechanism. These components are arranged so that the tube supply mechanism, the wire feeding mechanism, the first hot air spraying mechanism, and the direction-changing mechanism surround the rotary disc transfer mechanism, with the second hot air spraying mechanism below the direction-changing mechanism. The rosin flux application mechanism and the tin-dipping mechanism lie between the wire feeding mechanism and the twisting mechanism. The wire supply mechanism passes a wire through twisting, rosin flux application, and tin-dipping to ensure uniform coating, improving subsequent soldering, the tube supply mechanism provides a heat-shrink tube to the rotary disc transfer mechanism.