WCA March 2021

Technology news

Reusable expansion spool Uhing’s expansion spool, designed for sustainability and ease of operation in winding applications, is based on the easylock ® fast-action clamping system.

The spool expands, increases its diameter and is then ready to take up material wound onto it. By unlocking the positive release variant of the Uhing easylock ® , the spool reduces its diameter, and the material wound on it can be easily stripped off its core. The operation is simple, clamping and unclamping without tools and with only one hand. “It was the idea of one of our customers that led to this simple solution,” explained Wolfgang Weber, Uhing’s managing director, “and this purely mechanical implementation featuring a long-time Uhing product – the tried

❍ The components of the Uhing expansion spool

and tested Uhing easylock ® – offers ease of use and prevents additional waste.” The areas of application for the new expansion spool are coreless winding, winding of faulty material, or winding of edge trim or superfluous material for recycling. The reusable expansion spool offers the benefit of low energy require- ments; it works purely mechanically and does not require additional cardboard or wooden cores that must All types of round, single conductors and cables with a solid or stranded conductor can be measured, such as telephone cables, LAN cables, automotive cables and building cables. The device is installed either after the cooling trough in the extrusion line, to get quality information for the final product, or directly after the extruder. In this position, the user quickly receives information about the product. This allows the production line to be controlled via extruder output or line speed to achieve the specified minimum values. The measuring values are visualised on either the Ecocontrol processor system or on the Centerview 8000’s integrated display. The scatter plot shows the distribution of short-term variations of the eccentricity. It consists of 5,000 points, each representing a single value of the eccentricity. The overall distribution of the scatter plot highlights the standard deviation of the eccentricity, and with this information the cross head can be adjusted to ensure cable quality and to optimise the production process. Sikora AG www.sikora.net

be separated from the wound material during recycling. This sustainable solution saves working time and resources because the spool – once purchased – can be reused multiple times. The expansion spool is currently offered in three sizes, for shaft diameters of 15, 20 and 25mm, and winding capacities of 1,050 to 4,400cm 3 . Joachim Uhing GmbH & Co KG www.uhing.com

Non-contact cable measuring Sikora manufactures and supplies measuring, control, inspection and sorting technologies, with a product portfolio that comprises a wide range of systems for quality control and process optimisation.

The company’s Centerview 8000 is an in-line non-contact system for eccentricity, diameter and ovality

measurement as well as for the calculation of the wall thickness of cables.

❍ Centerview 8000 measures eccentricity, ovality and diameter of cables

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Wire & Cable ASIA – March 2021