New model: https://www.printables.com/model/452682-sovol-sv06-strain-relief
This strain relief model for the SOVOL SV06 was remixed to address the issue of the cable not being securely held in place. With the latest version, v5, the cable is raised slightly to prevent rubbing on the back of the machine as the bed moves. While it's still a work in progress, feedback and suggestions are welcome to continue improving the design.
I also want to add that there are five versions available, each with slight modifications, so hopefully one of them will suit your specific needs.