The aim of FIBRESPIN project is to increase the productivity of the spinning machines and improve the quality and control of production. In the traditional ring spinning machine the tensioning of the thread, deriving from the friction of the slider that crawls against the ring, is necessary to have the right twists and compact the spool. As the speed of rotation increases, the heat generated by this friction leads to overheating that damages the yarn, burns the slider and wears the ring. For this reason, the productivity of traditional spinning machines is limited to the rotation rules that can be supported by the cursor. The solution is to reduce this friction while maintaining control over the thread tension. The object of the study is a rotating group, dragged in rotation by the wire, which replaces the current one ring+ring and with these interchangeable can be applied on special quays with gauge starting from 77mm. The rotation speed will be regulated by an electromagnetic braking, managed by an electronic control, able to guarantee the correct twist and tension of the yarn. The objectives are to increase the rotation speed (i.e. productivity) and to eliminate the frequent ring changes both for wear and for production change. The textile machinery products and the machines that perform the main operations have been the object of in-depth cost analysis in the course of the years in order to obtain, on behalf of the manufacturers, benefits over the competitors. In particular, the spinning machines, require a high constructive and organizational commitment but have spread throughout the world in all countries and in an incredibly significant number their prices have been analyzed and compared by customers in a particularly detailed way. This led to an increase in the competition that, without prejudice to the quality levels, to have a competitive advantage, focused on reducing prices with the result that the margins for the manufacturer have been thinning. It is therefore essential for those who want to maintain adequate sales volumes with fair profit to be able to offer customers something significant that does not go to the expense of other historically sacrificed prices. For the spinning machine it appeared extremely important to propose an important increase in productivity. The latter, even considering the technical developments of the machine, is never significantly increased as it is constrained by the friction between the spinning ring and the slider. It was therefore necessary, in order to recover sales margins and volumes, to propose to customers a technical design development that involved a significant evolution with respect to the traditional ring/cursor concept with consequent increase in the speed of rotation and production of the wire.
The general objectives of the project are:
- Produce a spinning machine able to increase productivity up to 50% compared to traditional machines.
- Increase the automation level for the regulation of spinning parameters
- Making machines that, for the same product, involve extremely reduced spaces compared to classic installations, allowing to limit the surface of spinning plants, often a critical element of new systems which, moreover, must be heated and air-conditioned not only for the well-being of the personal, but also for the quality of the thread to be made. The containment of the occupied spaces also entails a proportional saving of energy consumption.
The achievement of these objectives would allow COGNETEX to significantly increase its market share on the sale of the new and occupy an important position also in the retrofitting of used machines with excellent economic finances.
