In the trusting partnership between Marzoli and Siemens, their individual core competencies are optimally applied, which in turn secures the ongoing technological development of Marzoli machines and systems.
Marzoli, the textile machine specialist, has secured its power of innovation by entering into a long-term partnership with Siemens for automation technology. Marzoli strength lies in its portfolio of machines and systems that covers the complete spinning production process. The company’s portfolio extends from machines for processing cotton, man-made and composite fibers from bale breakers to carding lines, drawframes, and flyers to the manufacturing of yarn using a ring-spinning process. Strategic partnership creates security.
Its many years of experience, in-depth industry know-how, high level of technological competence and flexible manufacturing system allow Marzoli to respond to market demands with a high degree of innovation. To secure this position, the group has been working closely with Siemens for many years in the field of automation and drive technology. Their complete portfolio of machines has been equipped with SIMOTION and SINAMICS to achieve the highest degree of homogeneity in the different machine series.
Efficient drive technology
The modular, scalable structure of the SINAMICS S120 family of drives and the enormous flexibility of SIMOTION controllers significantly simplify and rationalize the development of various machine types. For instance, machines can essentially “inherit“ the hardware and software engineering that has been implemented in other machines.
The multi-axis technology of the SINAMICS S120 family allows the control cabinet design to be optimized: the space required is minimized, and cabling and electromechanical components are reduced.
The configuration of motor mudules connected to a common DC bus and fed by an Active Line Module guarantees a high degree of reliability and ruggedness, even if the quality of the line supply is poor. This feature is of special significance for flyers and spinning frames. Until now voltage dips or power failures could cause all of the yarns to break, resulting in significant production downtimes.
The SINAMICS drive modules with the Cold Plate technology dissipate the power loss using an external heat sink via the thermal interface at the rear of the unit. This technology avoids the risk of the power unit overheating, which can occur in environments heavily laden with fluff.
Integration makes the difference: The principle of integration employed by the multi-axis system SINAMICS S120 allows all of the drive parameters to be saved on one compact flash card, thereby significantly simplifying the commissioning of serial machines. The system also proves itself in operation: The control unit recognizes if a module is defective and the spare part is automatically integrated, without having to recommission the drive.
Using the standard STARTER software tool, it is also possible to engineer all of the converters and servo drives of the SINAMICS family. The diagnostic tools available in STARTER allow the dynamic behavior of the drive components to be analyzed in detail.
As a result of the extensive options for setting the control parameters in the drive, the Marzoli application engineers can implement increased levels of machine performance without overstressing the mechanical system. The mechanical transmission elements are specially protected as the torques of the individual motors in the coupled drive train can be flexibly distributed.
The fact that the components are fully integrated via a fieldbus allows a whole series of internal drive parameters to be displayed at the operator interface where they can be easily monitored. Consequentially, maintenance technicians can simply call up useful information for monitoring the condition of the machine. Using the operator interface (MP 277) and communication with the Marzoli supervisory system via Ethernet, operators can simply adapt the process parameters to the particular yarn.
More than just a supplier relationship
In its partnership with Siemens, Marzoli has found a single supplier for the complete automation of its machines and systems – one single partner for the quality, the integration and the after-sales support provided through the global Siemens service centers. In close co-operation, the common objectives are pursued in an open spirit of partnership – which in turn guarantees a continuous improvement process.
Starting with the technical optimization of the solutions, which are used for the complete range of machines, up to the joint logistical control of supplied machines, both partners work hand in hand to create optimum solutions to address the current challenges of the spinning frame industry.