Braid Separation Apparatus for Rope Strand Recycling
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Solution Overview
Problem
Braided ropes are difficult to recycle due to the complexity of separating their strands, resulting in lower strength recycled materials and limited reuse potential, especially for thermoplastic and thermoset materials, and natural fibers, with conventional methods being time-consuming and prone to residual twists and entanglement.
Innovation Solution
A braid separation apparatus with multiple winding carriers that move in a serpentine path to separate and wind individual strands onto spools, minimizing twists and enabling efficient reuse by reversing the braiding process, using a slot gear assembly and torque creating units to maintain tension and prevent slack.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If hand separation is used to separate braided rope strands, then the process can be performed with simple equipment, but it is tedious and time-consuming
Solution Approach 1:
The apparatus divides the braided rope into individual strands using multiple winding carriers, each handling a separate strand. This segmentation allows simultaneous processing of multiple strands, dramatically increasing separation productivity while maintaining mechanical simplicity
Solution Approach 2:
The winding carriers move dynamically in a serpentine path along the rope length, automatically following the braid pattern. This dynamic motion enables the system to adapt to varying rope configurations without complex control mechanisms, maintaining ease of manufacture while achieving high-speed automated separation
2Adaptability or versatility
If conventional melting recycling is used for thermoplastic polymer ropes, then the material can be recycled, but the recycled rope strands have lower strength
Solution Approach 1:
The apparatus extracts individual strands from the braided rope structure through mechanical separation rather than thermal melting. This extraction preserves the original polymer structure and molecular integrity, maintaining the strength properties of the recycled strands while enabling their reuse in new braided ropes
Solution Approach 2:
The invention replaces the thermal/chemical recycling process (melting) with a mechanical separation process. This substitution avoids the degradation associated with melting and reprocessing, preserving strand strength while achieving recyclability
3Device complexity
If hand separation is used to separate braided rope strands, then no complex apparatus is needed, but the resulting rope strands include kinks or residual twists that cause entanglement
Solution Approach 1:
The winding carriers dynamically follow the serpentine path of the braid, automatically compensating for twists and kinks as they progress along the rope. This dynamic adaptation eliminates residual twists in the separated strands without requiring complex tensioning or straightening mechanisms
Solution Approach 2:
The winding carriers begin winding each strand onto spools from the very start of the separation process, preventing kinks and twists from forming in the first place. This preliminary action ensures high strand quality while keeping the apparatus relatively simple
Data Source
AI summary
A braid separation apparatus for separating rope strands of a braided rope, thereby allowing reuse of the separated rope strands, is provided and may include an input assembly configured to move a braided rope made of at least three rope strands, into the apparatus. Further, the apparatus may comprise three or more winding carriers, each being coupled to one of the rope strands. The winding carriers configured to move about each other in serpentine path such that rope strands of the braided rope are separated. Each winding carrier may comprise a spool which is connected to the rope strand coupled to the winding carrier. Each winding carrier may further comprise a torque creating unit configured to provide a torque on the spool and to cause the spool to rotate such that the rope strand is wound around the spool.