MACHINERY | TECHNOLOGY MEASUREMENT Upgrade for measuring systems


Zumbach Electronic has upgraded its Rayex S series of non-contact measuring gauges. The latest version is now available with embedded webserver access and native communication protocols such as OPC UA, Ethernet or Profinet. No additional processor or display units are required, it says. In addition, the series has a new


EXTRUSION


Using analytical techniques for tailor-made machinery


Bausano says it has introduced a number of tools and services to help it tailor its machines exactly to customer needs. These include new analytical software and extra space at its facility for materials testing. Before it designs a


system, the company says it carries out an analysis using a capillary rheom- eter, which studies the behaviour of a material as it flows and deforms. This helps to understand its viscosity as a function of the shear rate gradient – al- lowing Bausan to optimise head design and fine-tune the design of screws. The information is also


processed using a plasto- graph. Here, the custom- er’s starting materials are fed into the chamber, where they are heated and undergo shear stresses between two counter- rotating rotors. During machining, the torque is measured, which provides


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mechanical design and improved algorithms for better results. When combined with the com-


pany’s Usys IPC 2e processor and display solutions and other measuring equipment – such as its laser diameter and ovality gauges – Rayex S is able to control entire production lines. Some key features and advantages include high stability and accuracy


and sub-micron repeatability, says the company. The new models have a measuring frequency up to 20 Hz. Two X-ray sources are positioned at a 90° angle to one another, while an integrated exhaust device helps keep measuring windows clean. X-ray sources are robust and stable, with an expected lifetime of around four years. � www.zumbach.com


SENSORS


Monitoring flow in a


dosing unit Woywod has introduced a flow sensor that uses ultrasonic waves to monitor – in real time – whether the screw of a dosing unit is conveying material to the target area. Volumetric and gravi- metric dosing equipment can encounter conditions that prevent material from being discharged from the dosing unit, such as bridging of material in the storage hopper. Even when using


information on the viscosity of the molten material – indi- cating any changes pro- duced by machining on the system (such as gelation, branching or degradation). “Our distinctive feature lies both in the range of pre-design services, which allows us to tailor-make the best extrusion line,” said


Giovanni Bausano, R&D manager at the company. Before setting up a new machine at the customer’s production site, Bausano runs the line in its own factory to validate the design assumptions and test its performance, operation and noise levels. � www.bausano.com


gravimetric routines, there is a variable time offset due to causality checks of the measured values in the gravimetric measure- ment routines. It can take several minutes before finding that no material is being discharged – and an error is displayed via the control. This can have serious consequences in the production process, says the company. � www.woywod.de


November/December 2023 | PIPE & PROFILE EXTRUSION 39


IMAGE: BAUSANO


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