Politecnico di Milano
The evolution of the weaving machines, together with a progressive increase in terms of productivity and efficiency, is seeing an ever more intensive use of mechatronic technologies and complex kinematic systems for the synchronous actuation of the main functions of the machine, as an alternative to purely mechanical solutions typical of the current state of the art.
For the conventional weaving machine development, the complexity of the mechanical kinematic chains is generally the main cause of mechanical overloads in the parts, both consumables and life-time components, basically addressed by their oversizing and by the development of unwanted trade-off solutions, frequently used far away from the optimal working conditions with reduced efficiency and therefore with a larger environmental footprint.
The high levels of internal dynamic loads generated by the mechanism are transferred onto the base structure, and consequently to the flooring, manifesting themselves in the form of acoustic noise and mechanical vibration, even strongly compromising the operator comfort.
The kinematic systems, the elements of the structure and the interface between the floor and the structure itself, have a strong impact on the mechanical vibration levels with negative and unwanted effects in terms of:
The high-dynamic response of a mechatronic systems in working conditions is also more performant than the mechanical ones, allowing to optimize the geometry of the main structure and to develop innovative solutions to avoid or reduce the negative effect of the mechanical vibrations and overloads.
The redesign of the machine’s kinematic by applying innovative mechatronic solutions integrated in an optimized machine’s architecture would allow to lengthen the lifetime of the internal mechanical components with a direct impact on the life-cycle cost of the machine in terms of reduction of: