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A German university developed a novel rotating yarn guide for the textile industry. It can be applied in weft insertion during knitting or in high speed winders. Advantages include faster processing and reduced process costs. The university seeks partners from textile industry for license agreements.
Winding processes of yarn are limited because of the speed of the traversing devices. The yarn guidance must be slowed down and accelerated again at each turn. This is also the case in warp knitting machinery. Present solutions involve larger installations that can only be integrated statically.
A German university now offers a solution that renders possible to traverse yarn in a smaller area of up to 10 cm. The university’s invention describes a traversing device for yarns with which the yarn position can be moved between two end positions. This is required, for example, when winding a yarn bobbin or for weft insertion during knitting. A rotating yarn guide and a slit-shaped straight edge are to be used for this purpose. The continuous movement avoids the high acceleration forces that would otherwise occur at the reversal points of an oscillating rod. This allows to achieve faster speeds.
The process is particularly suitable for weft feeding in warp knitting machines. The invention can also be used for all types of high-speed winders.
License agreements are offered to textile industry and manufacturers of above machinery. They should apply the patent and integrate the technology either in the processes or in the equipment.
• Faster processing speeds than can be reached today
• High economic advantages
• Reduction in process costs compared to conventional solutions
A prototype is to be built and tested as part of a project.
Patent appplied for in Germany
The university offers interested companies licenses for the invention and patent application. Potential partners could be yarn producers but also manufacturers of textile machinery, such as warp knitting machines, traversing units or torque or hollow shaft motors. They would use the technology to optimise their processes and machinery.