Gold Thread Manufacturing via Segmented Rod Twisting
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Solution Overview
Problem
Existing methods for manufacturing gold threads for cosmetic and plastic surgery procedures suffer from drawing-induced inconsistency, leading to increased defective rates and reduced productivity due to bending deformation and fracture, as well as limited skin contact area and antibacterial properties.
Innovation Solution
A method involving the spirally twisting of multiple gold rods with diameters of 0.02 mm or less to form a gold thread, which is then wound and cut to a specific length, enhancing rigidity and surface area contact with the skin, thereby reducing bending issues and improving antibacterial effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a gold rod is drawn through a die aperture to manufacture a gold thread, then the gold thread can be produced with a certain diameter, but the force balance is unequal causing bending deformation and fracture
Solution Approach 1:
The patent divides a single gold rod into multiple thinner gold rods (e.g., 3-5 rods) that are drawn simultaneously through multiple die apertures. Each rod is drawn independently with balanced force, eliminating the bending and fracture issues that occur when drawing a single thick rod. The multiple rods are then twisted together to form the final gold thread.
Solution Approach 2:
The patent combines multiple individually drawn gold rods by twisting them together to form a composite gold thread. This merging process allows each rod to maintain its structural integrity during drawing while the final twisted structure provides the required strength and rigidity, eliminating the need for compression-rolling straightening.
2Shape
If compression-rolling is applied to straighten bending deformation, then the gold rod can be straightened, but the working time increases reducing productivity
Solution Approach 1:
The patent performs preliminary straightening by drawing multiple thin rods simultaneously through dies, which inherently produces straighter rods with less bending deformation compared to drawing a single thick rod. This preliminary action eliminates or reduces the need for subsequent compression-rolling straightening, significantly reducing working time and increasing productivity.
3Area of stationary object
If the gold thread diameter is reduced to improve skin contact area, then the contact area increases, but the rigidity becomes insufficient
Solution Approach 1:
The patent creates a composite gold thread structure by twisting multiple thin gold rods together. Each individual rod has a small diameter that provides large surface area for skin contact, while the composite structure formed by twisting multiple rods together provides the necessary rigidity and strength. This composite approach simultaneously achieves both large contact area and sufficient rigidity.
Solution Approach 2:
The patent transitions from a single-dimension solution (one thick rod) to a multi-dimensional structure (multiple thin rods twisted together). The twisting creates a helical arrangement where the individual rods are positioned at different angles and positions, providing both large surface area contact with the skin and structural rigidity through the distributed geometry of the composite structure.
4Device complexity
If a single thick gold rod is used, then the structure is simple, but the skin contact area is narrow limiting anti-aging and antibacterial effects
Solution Approach 1:
The patent segments a single thick gold rod into multiple thinner rods that are twisted together. This segmentation dramatically increases the total surface area available for skin contact, enhancing the anti-aging and antibacterial effects of gold. While the internal structure becomes more complex, the manufacturing process remains relatively simple by drawing multiple rods simultaneously and twisting them together.
Data Source
AI summary
A method for manufacturing a gold thread by spirally twisting together a plurality of gold rods. The method comprises passing a gold drawing material through a die aperture to form gold rods. Winding at least two of the gold rods on at least two gold rod receiving rollers. Receiving the gold rods from the receiving rollers and twisting the gold rods to form a gold thread. Winding the gold thread on a gold thread receiving roller and supplying the gold thread from the gold thread receiving roller to a cutter and cutting the gold thread into a certain length.